US20040224758A1 - Gaming machine - Google Patents
Gaming machine Download PDFInfo
- Publication number
- US20040224758A1 US20040224758A1 US10/697,238 US69723803A US2004224758A1 US 20040224758 A1 US20040224758 A1 US 20040224758A1 US 69723803 A US69723803 A US 69723803A US 2004224758 A1 US2004224758 A1 US 2004224758A1
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- United States
- Prior art keywords
- gaming machine
- liquid crystal
- light
- reel
- display panel
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F17/00—Coin-freed apparatus for hiring articles; Coin-freed facilities or services
- G07F17/32—Coin-freed apparatus for hiring articles; Coin-freed facilities or services for games, toys, sports, or amusements
- G07F17/3202—Hardware aspects of a gaming system, e.g. components, construction, architecture thereof
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F17/00—Coin-freed apparatus for hiring articles; Coin-freed facilities or services
- G07F17/32—Coin-freed apparatus for hiring articles; Coin-freed facilities or services for games, toys, sports, or amusements
Definitions
- This invention relates to a gaming machine comprising an electric image display device.
- this type of gaming machine includes a slot machine.
- a slot machine When playing a slot machine, three reels embedded behind the front panel thereof rotates so that the symbols drawn on the outer periphery of each reel are variably displayed one after another through the three reel windows formed in the front panel.
- the reels stops rotating and the symbols displayed on the respective windows correspond to a predetermined combination then the game is won, and medals won are paid out.
- the illumination light emitted from the cold-cathode tube enters the light guiding plate from the upper and lower side faces of the light guiding plate to subsequently emit toward the rear side of the liquid crystal panel via a lens cut formed within the light guiding plate.
- the liquid crystal display panel is illuminated with the emitted light.
- the conventional slot machine using a cold-cathode tube as an illumination device for illuminating a liquid crystal display panel shows variations in voltage applied to the cold-cathode tube among respective gaming machines due to the coil loss of the transformer used to allow the cold-cathode tube to be on, resulting in variations in brightness for illuminating the liquid crystal display panel among respective gaming machines.
- the conventional slot machines described above require an inverter circuit to avoid flickers in the illumination.
- an image displayed on a liquid crystal panel could be disturbed by the noise generated from the inverter circuit.
- the increase of the size of its liquid crystal panel necessitates the corresponding increase of an amount of illumination light by the illumination means.
- the space for disposing the cold-cathode tubes must be extended in the direction of the thickness of the light guiding plate. Therefore, the thickness of the light guiding plate also must accordingly be increased, resulting in growing in size of an electric display device.
- the increase of the thickness of the light guiding plate entails the corresponding increase of the distance between the reel and the liquid crystal panel.
- this invention provides a slot machine comprising: variable display means for variably displaying symbols; and an electric display device disposed in front of the variable display means, and having a light transparent area which shows symbols displayed on the variable display means, from outside of the gaming machine, herein said electric display device includes; n electric display panel displaying an image and illumination means having a light emitting diode, the illumination means illuminating the electric display panel from therebehind.
- the electric display panel is illuminated by LEDs so that the image displayed on the electric display panel will be visible. Since LEDs are lighted merely through application of DC current, an inverter circuit is not necessary. Further, since no transformer is required to light LEDs, variations in voltage applied to an illumination means among respective gaming machines due to the coil loss can be avoided. Moreover, the brightness of the illumination can be easily adjusted merely by adjusting the amount of current supplied to the LED with variable resistance or the like.
- an electric display means may be arranged such that the electric display device may comprise a light guiding plate that guides light entered from a side face thereof, to a back face of the electric display device, so as to irradiate the light; and the illumination means may comprises a plurality of the light emitting diodes, each of which is continuously aligned along a side face of the light guiding plate.
- the illumination means may be configured such that the illumination means comprises a plurality of the light emitting diode provided in matrix on an entire surface of the electric display device excluding the light transmitting area, the light emitting diodes opposing a back face of the electric display device.
- FIG. 3 This is an exploded perspective view of the reel display window unit shown in FIG. 3;
- FIG. 4 This is an enlarged perspective view schematically showing a structure of the illumination device shown in FIG. 4;
- FIG. 7 This is a perspective view of structure of the rotational reel constituting the rotational reel unit shown in FIG. 7;
- FIG. 13 This is an enlarged perspective view schematically showing a structure of the illumination device shown in FIG. 13.
- FIG. 1 is a front view showing an appearance of a slot machine 1 according to the embodiment.
- reels 2 , 3 and 4 are rotatably provided inside a cabinet at the center of the main body of a slot machine 1 .
- These reels 2 , 3 and 4 constitute a variable display means for variably displaying various symbols used for a game.
- a line of symbols consisting of a plurality of kinds of symbols (hereinafter referred to as symbols) are drawn.
- a reel display window unit 39 is provided in front of the respective reels 2 - 4 . Through respective display windows 5 , 6 and 7 defined in the reel display window unit 39 , respective three symbols among those drawn on the outer periphery of the corresponding reels 2 , 3 and 4 can be seen.
- an insertion slot 8 is provided through which a player inserts one or more medals, the medal serving as a gaming medium.
- FIG. 2( a ) When a player inserts a medal into the medal insertion slot 8 prior to start a game, one horizontal center pay line L 1 is activated as shown in FIG. 2( a )
- two upper and lower horizontal pay lines L 2 A and L 2 B are added to enable a total of three horizontal pay lines L 1 , L 2 A and L 2 B as shown in FIG. 2( b ).
- all the five pay lines L 1 , L 2 A, L 2 B, L 3 A and L 4 B are activated as shown in FIG. 2( c ).
- Each circle sign shown in these figures represents a symbol drawn on the reels 2 - 4 .
- a symbol combination continuous actuation enhancer indicator 9 On an machine front panel 38 to the left of the display windows 5 - 7 , there are provided a symbol combination continuous actuation enhancer indicator 9 , a symbol combination continuous actuation enhancer indicator 10 , a replay indicator 11 , a game stop indicator 12 , three gaming medal insertion number indicator lamps 13 - 15 , a deposition amount display unit 16 , and a start lamp 17 .
- Each of the indicators 9 - 12 and the gaming medal insertion number indicator lamps is controlled to be on in accordance with the state of the ongoing game, thereby informing a player of the state of the ongoing game and the number of inserted medals.
- the deposition amount display unit 16 is composed of three digits of 7-segment LEDs (light emitting diodes) and displays the number of medals currently credited within the machine.
- the start lamp 17 blinks when the reels 2 - 4 can be started.
- the bonus count display unit 18 is composed of three digits of 7-segment LEDs and digitally displays, when a player wins a bonus game, the remaining number of times for possibly winning at an RB and JAC games.
- the WIN lamp 19 is lighted when symbols of a winning combination appear on an activated pay line.
- the payoff amount display unit 20 is composed of three digits of 7-segment LEDs and displays the number of medals to be paid out when a game is won.
- the insertion lamp 21 is lighted when the medal insertion slot 8 can receive a medal.
- the reel display window unit 39 comprises a liquid crystal display panel 39 d (described later) laminated thereon as an electric display panel.
- the liquid crystal panel 39 d can display various game information and game effect images.
- a cross key 23 At the left-hand lower portion of the machine front panel 38 , there are provided a cross key 23 , an A-button 24 , a B-button 25 , a one deposited medal insertion switch 26 , two deposited medals insertion switch 27 , and three deposited medals insertion switch 28 .
- the cross key 23 can be switch-operated in either of the four directions, namely, upward, downward, leftward and rightward directions, and is utilized upon selecting information to be displayed on the liquid crystal display panel 39 d through concurrent operation with A- and B-buttons.
- the deposited medal insertion switches 26 - 28 are used when one to three medals are bet on one game instead of medal insertion into the medal insertion slot 8 when the deposition amount display unit 16 displays the number of credited medals.
- buttons 31 - 33 are disposed corresponding to the respective reels 2 - 4 .
- Each of buttons 31 - 33 is operatively activated when each of the reels 2 - 4 reaches a predetermined rotational peed, and stops rotation of the respective reels 2 - 4 in response to the player's operation.
- a medal receiving tray 34 is provided at the front bottom of the slot machine 1 .
- the medal receiving tray 34 serves to stock the medals paid out from a medal payout opening 35 .
- a dividend display unit 36 is provided at the front top of the slot machine 1 for displaying the number of medals to be paid out when a game is won.
- FIG. 3 is a vertical cross-sectional view of the reel display window unit 39 .
- FIG. 4 is an exploded perspective view of the reel display window unit 39 . As shown in FIG. 3, the reel display window unit 39 is provided in front of the respective reels 2 , 3 and 4 . As shown in FIG.
- the reel display window unit 39 comprises a transparent acrylic plate 39 a , a reel glass base 39 b , a bezel metal frame 39 c , a liquid crystal display panel 39 d , a liquid crystal holder 39 e , a diffusion sheet 39 f , a light guiding plate 39 g , a reflection sheet 39 h , a backlight frame 39 i and an antistatic sheet 39 j , in this order from the near side of the machine.
- the reel display window unit 39 is fitted to the machine front panel 38 in such a manner that respective brackets 39 ba provided to the reel glass base while protruding upward and downward thereof are screwed onto the rear of the machine front panel 38 via respective screws 39 k .
- the respective brackets 39 ba provided to the reel glass base 39 b are not shown in FIG. 4.
- the liquid crystal display panel 39 d is a transparent electric display panel made of ITO or the like, which is disposed in front of the respective reels 2 - 4 to allow the same to be seen through the panel 39 d .
- the rear side of the periphery of the display unit is held by a liquid crystal holder 39 e .
- the light guiding plate 39 g is made of a substantially light transparent resin panel and has a lens cut formed therein for guiding the light having entered the plate 39 g from the upper and lower side faces thereof to the rear side of the liquid crystal panel 39 d .
- a pair of illumination devices 39 m is provided for illuminating the liquid crystal display panel 39 d along the upper and lower side faces of the light guiding plate 39 g , respectively.
- the diffusion sheet 39 f is made of a substantially light transparent resin sheet and serves to diffuse the light guided by the light guiding plate 39 g to uniformize the light illuminated to the liquid crystal display panel 39 d .
- the reflection sheet 39 h is a sheet for reflecting the light, which has emitted from the illumination device 39 m to the light guiding plate 39 g , toward the liquid crystal display panel 39 d side.
- the openings 5 a - 5 d , the openings 6 a - 6 d and the openings 7 a - 7 d are superposed to constitute a substantially light transparent area.
- the symbols drawn on reels 2 , 3 and 4 can be seen through the substantially light transparent area from the outside.
- the reel glass base 39 b , the bezel metal frame 39 c , the liquid crystal panel 39 d , the liquid crystal holder 39 e , the diffusion sheet 39 f , the light guiding plate 39 g , the reflection sheet 39 h , the backlight frame 39 i , the antistatic sheet 39 j and the illumination device 39 m constitute an electric display device, which is disposed in front of the reels 2 - 4 and allows the symbols drawn on reels 2 - 4 to be seen through the substantially light transparent area thereof.
- the liquid crystal display panel 39 d is held by the liquid crystal holder 39 e to be integrated with the diffusion sheet 39 f , the light guiding plate 39 g and the reflection sheet 39 h , the periphery of which is inserted into the bezel metal frame 39 c . Through this insertion, the front side of the periphery of display unit of the liquid crystal display panel 39 d is held by the bezel metal frame 39 c.
- the liquid crystal display panel 39 d , the liquid crystal holder 39 e , the diffusion sheet 39 f , the light guiding plate 39 g and the reflection sheet 39 h integrated by being fitted into the bezel metal frame 39 c are further inserted in the reel glass base 39 b at the circumference thereof to be supported by the reel glass base 39 b in such a state that the front face of the display unit of the liquid crystal display panel 39 is opened.
- the transparent acrylic plate 39 a is pressed to the front face of the reel glass base 39 b by fitting the reel glass base 39 b with a screw 39 k to the front panel 38 of the machine to cover the opening of the front face of the display unit of the liquid crystal display panel 39 .
- the backlight frame 39 i is made of a white resin plate and holds the bezel metal frame 39 c , the liquid crystal display panel 39 d , the liquid display holder 39 e , the diffusion sheet 39 f , the light guiding plate 39 g and the reflection sheet 39 h , which are supported by the reel glass base 39 b , to the reel glass base 39 b from behind of them.
- the antistatic sheet 39 j is transparent and adhered to the back face of the backlight frame 39 i with a double-sick tape, and covers the back face of the respective apertures 5 d , 6 d and 7 d formed in the backlight frame 39 i.
- FIG. 5 is an enlarged perspective view of an illumination device 39 m disposed along the lower side face of the light guiding plate 39 g .
- the illumination device 39 m being disposed along the upper side face of the light guiding plate 39 g has the same configuration as the above illumination device.
- each illumination device 39 m comprises a plurality of high brightness LEDs 39 m 2 disposed on the upper end face of a board 39 m 1 .
- the board 39 m 1 is shaped as an elongated plate, and a connector 39 m 3 is provided at one lengthwise end thereof to be used to connect a wiring for power supply.
- the respective high brightness LEDs 39 m 2 emit white light and are arrayed in a line along the lengthwise direction of the board 39 m 1 on the upper end face of the board 39 m 1 .
- Respective illumination devices 39 m are disposed along the upper and lower faces of the light guiding plate 39 g while keeping the upper end face of the board 39 m 1 toward the light guiding plate 39 g side to illuminate the light emitted from the high brightness LEDs 39 m 2 to the light guiding plate 39 g .
- the emitted light is reflected from the reflection sheet 39 h to the diffusion sheet 39 f to be diffused, and then illuminates the liquid crystal display panel 39 d from the rear side.
- FIG. 6 shows symbol sequences drawn on the outer periphery of the reels 2 , 3 and 4 .
- Each symbol sequence comprises an array of 21 symbols including a plurality of kinds.
- the symbol sequences correspond to the first, second and third reels 2 , 3 and 4 from the left to the right in the figure in this order, respectively.
- Each of the symbols is assigned a code number out of “1” to “21”.
- Each reel 2 , 3 and 4 is rotationally driven to move the corresponding symbol sequence downward in the figure.
- Each of reels 2 - 4 is configured as a rotation reel unit shown in FIG. 7 and attached to a frame 41 via a bracket 42 .
- Each of reels 2 - 4 comprises a reel drum having a reel band 44 affixed on its outer periphery. The symbol sequence described above is drawn on the outer periphery of the reel band 44 .
- Each bracket 42 is provided with a stepping motor 45 adapted to rotationally drive the corresponding reel 2 , 3 or 4 .
- FIG. 8 The structure of respective reels 2 - 4 is shown in FIG. 8. In this figure, similar parts as in FIG. 7 are designated with the same reference signs and are not described herein.
- a lamp case 46 is provided inside the reel drum 43 behind the reel band 44 .
- back lamps 47 a , 47 b and 47 c are installed in the respective three compartments of the lamp case 46 . These back lamps 47 a - 47 c are constituted of a white LED and attached to the back face of the lamp case 46 .
- a photosensor 49 is also attached to the bracket 42 . The photosensor 49 detects a shield 50 provided on the reel drum 43 passing over the photosensor 49 when the reel drum 43 rotates.
- Each of back lamps 47 a - 47 c is controllably lighted by a lamp drive circuit described later.
- Each of the lighted back lamps 47 a - 47 c separately illuminates three symbols positioned in front of it out of the symbols drawn on the reel band 44 to project the respective three symbols onto the respective display windows 5 - 7 .
- FIG. 9 shows a table of winning symbol combinations predetermined in the slot machine 1 in accordance with the embodiment, which is shown on the payoff display unit 36 at the front top of the slot machine 1 .
- a combination of symbols “Red 7 ”-“Red 7 ”-“Red 7 ” a combination of symbols “Blue 7 ”-“Blue 7 ”-“Blue 7 ”, or a combination of symbols “BAR”-“BAR”-“BAR” is laid beneath an activated pay line, 15 medals are paid out, and then an R•B (Ordinary-Bonus) game is executed.
- FIGS. 10 and 11 show circuit configurations arranged on a main control bard 61 and a sub-control board 62 , respectively, for controlling the game executing operations of the slot machine 1 described above.
- the control unit of the main control board 61 shown in FIG. 9 comprises a microcomputer 63 as its major component and additionally a circuit for a random number sampling.
- the microcomputer 63 comprises a main CPU (central processing unit) 64 for performing control operations according to a preset program, a program ROM (read only memory) 65 serving as program storage means, and a backup-capable control RAM (random access memory) 66 .
- main CPU 64 central processing unit
- a program ROM (read only memory) 65 serving as program storage means
- a backup-capable control RAM (random access memory) 66 To the main CPU 64 , a clock pulse generation circuit 67 and a frequency divider 68 for generating reference clock pulses, a random number generator 69 for generating a certain range of random numbers, and a random number sampling circuit 70 for specifying one of the generated random numbers.
- the ROM 65 has a storage unit sectioned so as to separately store a winning probability table, a symbol table, a winning symbol combination table and a sequence program.
- Examples of principal actuators whose operation is controlled by a control signal from the microcomputer 63 include the stepping motors 45 for rotationally driving the respective reels 2 , 3 and 4 , various lamps (game medal insertion amount indicator lamps 13 - 15 , a start lamp 17 , a WIN lamp 19 and a insertion lamp 21 ), various display units (a deposition amount display unit 16 , various indicators 9 - 12 , a bonus count display unit 18 and a payoff amount display unit 20 ) and a hopper 72 for containing medals. These are driven by a motor drive circuit 73 , an individual lamp drive circuit 74 , an individual display unit drive circuit 75 and a hopper drive circuit 76 , respectively. These drive circuits 73 - 76 are connected to the CPU 64 via the I/O port 71 of the microcomputer 63 .
- Examples of major input signal generation means for generating input signals required for the microcomputer 63 to produce control signals include an inserted medal sensor 8 S for detecting a medal inserted through the medal insertion slot 8 , a start switch 30 S for detecting an operation of the start lever 30 , the above-described deposited medal insertion switches 26 - 28 and the deposited medal adjustment switch 29 .
- the photosensor 49 is included in the driving mechanism of each of reels 2 - 4 and not shown in this figure.
- the reel position detection circuit 77 counts the number of driving pulses supplied to each of stepping motors 45 after the reels 2 - 4 have started rotating, and writes these count values to a predetermined area in the RAM 66 . Accordingly, the RAM 66 stores the count value corresponding to the rotational position within a range of one rotation for respective reels 2 - 4 .
- the photosensor 49 detects the shield plate 50 for each rotation of the reels 2 - 4 to generate a reset pulse. This reset pulse is applied to the CPU 64 via the reel position detection circuit 77 and causes the count value of driving pulses counted in the RAM 66 to be cleared to “0”. This clearing procedure eliminates the misalignment occurring between the moving display of each symbol and the rotation of each stepping motor 45 every rotation.
- Examples of the input signal generation means described above also include a reel stop signal circuit 78 for stopping a corresponding reel when a stop button 31 , 32 or 33 is pushed, a medal detection unit 72 S for counting the number of medals to be paid out from the hopper 72 , and a payout completion signal generation circuit not shown.
- the payout completion signal generation circuit generates a signal indicating the completion of medal payout when the count value of medals actually paid out inputted from the medal detection unit 72 S reaches the payoff amount data represented by the count signal inputted from the display unit drive circuit 75 .
- Each circuit constituting these input signal generation means is also connected to the main CPU 64 via the I/O port 71 .
- a sub-control unit communication port 79 is connected to the I/O port 71 .
- the microcomputer 63 delivers a signal to the sub-control board 62 via the sub-control unit communication port 79 .
- the sub-control board 62 shown in FIG. 11 is provided with a main control unit communication port 80 for receiving this signal. Communication between the sub-control unit communication port 79 and the main control unit communication port 80 is preformed only in one direction, namely, from the sub-control unit communication port 79 to the main control unit communication port 80 .
- the signal delivered from the sub-control unit communication port 79 to the main control unit communication port 80 is composed of a set including a command type representing its control type in 7-bit length and a parameter representing the content of the command in 8-bit or 24-bit length.
- the control unit in the sub-control board 62 comprises a microcomputer 81 as its major component and additionally a circuit for sampling random numbers.
- the microcomputer 81 comprises, as with the microcomputer 63 in the main control board 61 , a sub-CPU 82 for performing control operations according to a preset program, a program ROM 83 serving as program storage means, and a backup-capable control RAM 84 .
- a clock pulse generation circuit 85 and a frequency divider 86 for generating reference clock pulses are also connected.
- an I/O port 87 is connected for communicating signals with the main control unit communication port 80 and the actuators described below.
- the sub-CPU 82 calculates data required to display gaming machine data on the liquid crystal panel 39 d on the basis of the command transmitted from the main control board 61 for each game and updates data stored in the control RAM 84 to the data calculated for each game.
- Examples of actuators whose operation is controlled by a control signal from the microcomputer 81 include the high brightness LEDs 39 m 2 constituting the above-described illumination device 39 m and the reel back lamps 47 a , 47 b and 47 c housed in the reels 2 - 4 .
- the lighting of the LEDs 39 m 2 is controlled by a driving signal from a LED drive circuit 98 connected to the I/O port 87 .
- the lighting of the back lamps 47 a - 47 c is controlled by a driving signal from a lamp drive circuit 89 connected to the I/O port 87 .
- a game status monitoring timer 97 is connected to the I/O port 87 . This timer 97 is set by the sub-CPU 82 at the time when a game is started, and measures the period elapsed since the start of the game.
- An image control IC (integrated circuit) 90 and a sound source IC 91 are also connected to the I/O 87 .
- a character ROM 92 for storing character data and a video RAM 93 serving as a memory for color display representation are connected to the image control IC 90 .
- the image control IC 90 displays an image on the liquid crystal display panel 39 d of the reel display window unit 39 under the control of the microcomputer 81 .
- the microcomputer 81 fetches information such as the current game status and the type of winning flag from the main control board 61 via the main control unit communication port 80 and selects an image effect pattern to be displayed on the basis of the fetched game status and winning flag.
- the image control IC 90 controls the image control IC 90 to make the liquid crystal panel 39 d display the selected pattern. It is also possible to allow the liquid crystal panel 39 d to display information desired by a player through the operation of the cross key 23 , A-button 24 and B-button 25 .
- a sound ROM 94 in which sound data has been stored, is connected.
- the sound source IC 91 makes a speaker 96 emit a sound via a power amplifier 95 under the control of the microcomputer 81 .
- the microcomputer 81 controls the sound source IC 91 and the power amplifier 95 to make the speaker 96 emit such sound effects as a medal insertion sound, a start lever operation sound, a stop button operation sound and a game sound during a bonus game, in accordance with the instructions inputted from the main control board 61 via the main control unit communication port 80 .
- the start switch 30 S is turned on. This ON signal is detected by the main CPU 64 via the I/O port 71 .
- the main CPU 64 controls the motor drive circuit 73 to drive the stepping motors 45 , causing rotation of respective reels 2 - 4 .
- the main CPU 64 performs the probability lottery procedure.
- a lottery for an internal winning mode is performed. The type of the internal winning mode thus drawn and the game status at the time are transmitted to the sub-control board 62 via the sub-control unit communication port 79 .
- the type of an internal winning mode and the game status transmitted from the sub-control unit communication port 79 to the sub-control board 62 is received by the sub-CPU 82 via the main control unit communication port 80 of the sub-control board 62 .
- effects of the slot machine game are performed under the control of the sub-CPU 82 which has detected the type of internal winning mode and the game status, such as blinking reel back lamps 47 a , 47 b and 47 c housed in the reels 2 - 4 .
- effects in accordance with the type of the internal winning mode and the game status are also displayed under the control of the sub-CPU 82 on the liquid crystal display 39 d provided at the reel display window unit 39 in front of the respective reels 2 - 4 .
- the sub-CPU 82 controls the LED drive circuit 98 to light the high brightness LEDs 39 m 2 .
- the light emitted from the high brightness LEDs 39 m 2 enters the light guiding plate 39 g through the upper and lower side faces of the plate 39 g and then exits the light guiding panel 39 g from its one end face on the side of liquid crystal panel 39 d .
- the emitted light illuminates the liquid crystal panel 39 d from back face side to make the image displayed on the liquid crystal display panel 39 d visible.
- the high brightness LEDs 39 m 2 constituting the illumination device 39 m is lighted merely through application of DC current, an inverter circuit is not necessary as opposed to a conventional cold-cathode tube. Therefore, it is possible to prevent an image displayed on the liquid crystal panel 39 d from being disturbed by the noise generated from an inverter circuit and reduce the manufacture cost of the slot machine 1 .
- the lighting of the high brightness LEDs 39 m 2 can be achieved without using a transformer as opposed to a conventional cold-cathode tube, no variation occurs in voltage applied to the high brightness LEDs 39 ms among respective members of the slot machine 1 due to the coil loss of the transformer.
- the lightness adjustment of the illumination due to the high brightness LEDs 39 m 2 can be easily achieved by merely adjusting the amount of current supplied to the high brightness LEDs 39 m 2 via variable resistance or the like.
- the amount of light emitted from the illumination device 39 m can be adjusted by adjusting the amount of current supplied to each of the LEDs 39 m 2 arranged in a series on the board 39 m 1 and increasing/decreasing the number of the LEDs 39 m 2 to be supplied with power. Therefore, it is possible to adjust the overall light and shade of the liquid crystal panel 39 d constituting the electric display device.
- the illumination devices 39 m are provided along the upper and lower side faces of the light guiding plate 39 g , respectively.
- FIG. 12 is a vertical cross-sectional view of the reel display window unit 39 in the slot machine in accordance with the second embodiment.
- FIG. 13 is an exploded perspective view of the reel display window unit 39 .
- the parts same as those in FIGS. 3 and 4 will be given with the same reference characters and the descriptions thereof will be omitted.
- the reel display window unit 39 comprises a protective frame 39 p instead of, and disposed at the same location as, the light guiding plate 39 g and illumination device 39 m in the reel display window unit 39 in accordance with the first embodiment and an illumination device 39 q instead of, and at the same location as, the reflection sheet h, and is attached to the machine front panel 38 as shown in FIG. 12.
- the protective frame 39 p serves to maintain distance between the illumination device 39 q and the diffusion sheet f in such a manner that the red, green and blue lights emitted from the high brightness LEDs 39 q 2 , respectively, of the illumination device described later are mixed to illuminate the diffusion sheet 39 f as a white light.
- the electric display device comprises a reel glass base 39 b , a bezel metal frame 39 c , a liquid crystal display panel 39 d , a liquid crystal holder 39 e , a diffusion sheet 39 f , a backlight frame 39 i , an antistatic sheet 39 j , a protective frame 39 p and an illumination device 39 q.
- FIG. 14 is an exploded perspective view of the illumination device 39 q.
- the illumination device 39 q comprises the high brightness LEDs 39 q 2 arranged in a matrix on one face of a plate-shaped board 39 q 1 , excluding the substantially light transparent area, having a substantially same appearance as the light guiding plate 39 g of the above first embodiment.
- a plate-shaped board 39 q 1 excluding the substantially light transparent area, having a substantially same appearance as the light guiding plate 39 g of the above first embodiment.
- an aperture 5 e constituting a display window 5 an aperture 6 e constituting a display window 6
- an aperture 7 e constituting a display window 7 are formed to constitute substantially light transparent areas together with the apertures 5 a and 5 d , the apertures 6 a and 6 d , and the apertures 7 a and 7 d , respectively.
- the illumination device 39 q is disposed such that the high brightness LEDs 39 q 2 are arranged on its one surface oriented toward the back face side of the liquid crystal display panel 39 d.
- the light emitted from the high brightness LEDs 39 q 2 of the illumination device 39 q irradiates the diffusion sheet 39 f as white light resulted from the mixture of the red, green and blue light, and illuminates the back face of the liquid crystal display panel 39 d after being diffused at the diffusion sheet 39 f.
- the slot machine of the embodiment since the light emitted from the high brightness LEDs 39 q 2 illuminates directly the liquid crystal display panel 39 d , the illumination of the liquid crystal display panel 39 d can be achieved without using the light guiding plate 39 g . Therefore, the structure of the electric display device can be simplified. Further, through increasing/decreasing the amount of current to be supplied to each of a number of high brightness LEDs 39 q 2 arranged on one surface of the board 39 q 1 , the amount of the illumination light emitted from the illumination device 39 q can be adjusted over a wide range.
- the lighting area of the respective high brightness LEDs 39 q 2 arranged on the board 39 q 1 in a matrix or by adjusting the amount of current supplied to the high brightness LEDs 39 q 2 in a specified area it is possible to selectively illuminate a specified area within the liquid crystal display panel 39 d or adjust the lightness of the specified area.
- display mode for effect display as well as information display by the electric display device can be diversified.
- the amount of power consumption of the illumination device 39 q can be reduced.
- an illumination means is constituted by disposing the high brightness LEDs 39 q 2 on the board 39 q 1 .
- this invention is not limited thereto.
- an illumination means may be constituted by using the backlight frame 39 i as the board 39 q 1 , and arranging the high brightness LEDs 39 q 2 in a matrix on the front face of the backlight frame 39 i.
- the number of high brightness LEDs 39 m 2 and 39 q 2 arranged on the boards 39 m 1 and 39 q 1 can be appropriately altered in accordance with the amount of light emitted from the respective high brightness LEDs 39 m 2 and 39 q 2 or the size of the liquid crystal display panel 39 d .
- the boards 39 m 1 and 39 q 1 constituting the illumination devices 39 m and 39 q respectively, not only the merely plate-shaped boards but also, for example, FPC (flexible printed circuit board) may be used.
- the LED drive circuit 98 is arranged on the sub-control board 62 .
- the LED drive circuit 98 is arranged on the main control board 61 .
- a constitution is also possible in which only the LED drive circuit 98 is unitized and power is supplied to the LED drive circuit 98 directly from a power source circuit.
- this invention is applied to the liquid crystal display device provided in a slot machine.
- this invention is not limited to the case but may also be applied to the liquid crystal display device provided in another type of gaming machines such as, for example, a pachinko gaming machine.
- the electric display panel is illuminated by LEDs to make the image displayed on the electric display panel visible. Since LEDs are lighted merely through application of DC current, no inverter circuit is necessary. Therefore, it is possible to prevent the image displayed on the electric display panel from being disturbed by noise, enhance the quality of the image displayed on the electric display device and reduce the manufacture cost of a gaming machine. Further, since the lighting of LEDs requires no transformer, variations in voltage applied to an illumination means due to coil loss can be avoided among respective members of a gaming machine. Accordingly, variations in lightness of the illumination of the liquid crystal display panel can be prevented. Moreover, the lightness of the illumination can be easily adjusted by merely adjusting the amount of current supplied to LEDs by using variable resistance or the like.
Abstract
During playing a slot machine, high brightness LEDs 39 m 2 constituting an illumination device 39 m are lighted and a liquid crystal display panel 39 d is illuminated by the light emitted from the high brightness LEDs 39 m 2. Since the high brightness LEDs 39 m 2 are lighted merely through application of DC current, no inverter circuit is necessary, and the image displayed on the liquid crystal display panel 39 d can be prevented from being disturbed by noise.
Description
- This invention relates to a gaming machine comprising an electric image display device.
- Conventionally, this type of gaming machine includes a slot machine. When playing a slot machine, three reels embedded behind the front panel thereof rotates so that the symbols drawn on the outer periphery of each reel are variably displayed one after another through the three reel windows formed in the front panel. When the reels stops rotating and the symbols displayed on the respective windows correspond to a predetermined combination, then the game is won, and medals won are paid out.
- There exists a conventional slot machine comprising a liquid crystal display device provided on the front panel at the lower side of the reel windows, serving as an electric display device for displaying effect images and information images relating to an ongoing game (refer to Patent Document 1). There also exists a conventional slot machine comprising a liquid crystal display device with a large display area provided on the front panel, serving as an electric display device. Such display devices comprise a light guiding plate disposed at the rear side of the liquid crystal display panel, and illumination devices constituted by a cold-cathode tube are disposed at the sides of the upper and lower ends of the light guiding plate. The illumination light emitted from the cold-cathode tube enters the light guiding plate from the upper and lower side faces of the light guiding plate to subsequently emit toward the rear side of the liquid crystal panel via a lens cut formed within the light guiding plate. The liquid crystal display panel is illuminated with the emitted light.
- Refer to Japanese Patent Laid-open Publication No. 2002-78856, for example.
- However, the conventional slot machine using a cold-cathode tube as an illumination device for illuminating a liquid crystal display panel shows variations in voltage applied to the cold-cathode tube among respective gaming machines due to the coil loss of the transformer used to allow the cold-cathode tube to be on, resulting in variations in brightness for illuminating the liquid crystal display panel among respective gaming machines. Further, the conventional slot machines described above require an inverter circuit to avoid flickers in the illumination. However, an image displayed on a liquid crystal panel could be disturbed by the noise generated from the inverter circuit.
- In a conventional slot machine using a cold-cathode tube as illumination means, the increase of the size of its liquid crystal panel necessitates the corresponding increase of an amount of illumination light by the illumination means. However, when the number of cold-cathode tubes is increased to increase an amount of the illumination light, the space for disposing the cold-cathode tubes must be extended in the direction of the thickness of the light guiding plate. Therefore, the thickness of the light guiding plate also must accordingly be increased, resulting in growing in size of an electric display device. In addition, the increase of the thickness of the light guiding plate entails the corresponding increase of the distance between the reel and the liquid crystal panel. Accordingly, in a conventional slot machine equipped with a large size liquid crystal panel, when effect such as overlaying a liquid crystal image on a symbol on the reel is performed, significant displacement may occur between the symbol drawn on an outer periphery of the reel and an image displayed on the liquid crystal panel depending on a player's viewing angle, thereby impairing the effect.
- To solve these problems, this invention provides a slot machine comprising: variable display means for variably displaying symbols; and an electric display device disposed in front of the variable display means, and having a light transparent area which shows symbols displayed on the variable display means, from outside of the gaming machine, herein said electric display device includes; n electric display panel displaying an image and illumination means having a light emitting diode, the illumination means illuminating the electric display panel from therebehind.
- According to this configuration, the electric display panel is illuminated by LEDs so that the image displayed on the electric display panel will be visible. Since LEDs are lighted merely through application of DC current, an inverter circuit is not necessary. Further, since no transformer is required to light LEDs, variations in voltage applied to an illumination means among respective gaming machines due to the coil loss can be avoided. Moreover, the brightness of the illumination can be easily adjusted merely by adjusting the amount of current supplied to the LED with variable resistance or the like.
- Furthermore, in this invention, an electric display means may be arranged such that the electric display device may comprise a light guiding plate that guides light entered from a side face thereof, to a back face of the electric display device, so as to irradiate the light; and the illumination means may comprises a plurality of the light emitting diodes, each of which is continuously aligned along a side face of the light guiding plate.
- According to this configuration, it is possible to adjust the amount of illumination light emitted from the illumination means by adjusting the amount of current to be supplied to each of the arrayed LEDs or by increasing/decreasing the number of LEDs to be supplied with current.
- Further, in this invention, the illumination means may be configured such that the illumination means comprises a plurality of the light emitting diode provided in matrix on an entire surface of the electric display device excluding the light transmitting area, the light emitting diodes opposing a back face of the electric display device.
- According to this configuration, since the light emitted from the LEDs illuminates directly the electric display panel, it is possible to illuminate the electric display panel without using a light guiding plate. Further, it is possible to adjust the amount of light emitted from the illumination means over a wide range by increasing/decreasing the amount of current supplied to each of the plural LEDs arranged over one surface of a plate-shaped member. Therefore, it is possible to significantly increase the amount of light emission while maintaining the thickness of the illumination means constant so that even when the size of the electric display panel is large, the distance between the variable display means and the electric display panel can be maintained constant. Further, it is possible to selectively illuminate a specified area in the electric display panel or adjust the brightness of a specified area by selecting the area of the LEDs to be on from those arrayed in a matrix or by adjusting the amount of current supplied to the LEDs within a specified area, respectively.
- [FIG. 1]
- This is a front view of an appearance of a slot machine in accordance with a first embodiment of this invention;
- [FIG. 2]
- This is a view of a state in which pay lines indicated on a display window of the slot machine in accordance with the first embodiment of this invention are sequentially activated;
- [FIG. 3]
- This is a vertical cross-sectional view of a reel display window unit of the slot machine in accordance with the first embodiment of this invention;
- [FIG. 4]
- This is an exploded perspective view of the reel display window unit shown in FIG. 3;
- [FIG. 5]
- This is an enlarged perspective view schematically showing a structure of the illumination device shown in FIG. 4;
- [FIG. 6]
- This is a view of symbols drawn on the outer periphery of the reels of the slot machine in accordance with the first embodiment of this invention;
- [FIG. 7]
- This is a perspective view of a rotational reel unit of the slot machine in accordance with the first embodiment of this invention;
- [FIG. 8]
- This is a perspective view of structure of the rotational reel constituting the rotational reel unit shown in FIG. 7;
- [FIG. 9]
- This is a view of symbol combinations drawn on a dividend display unit of the slot machine in accordance with the first embodiment of this invention;
- [FIG. 10]
- This is a block diagram of a circuit configuration arranged on a main control board of the slot machine in accordance with the first embodiment of this invention;
- [FIG. 11]
- This is a block diagram showing a circuit configuration arranged on a sub-control board of the slot machine in accordance with the first embodiment of this invention;
- [FIG. 12]
- This is a vertical cross-sectional view of a reel display window unit of the slot machine in accordance with a second embodiment of this invention;
- [FIG. 13]
- This is an exploded perspective view of the reel display window unit shown in FIG. 12; and
- [FIG. 14]
- This is an enlarged perspective view schematically showing a structure of the illumination device shown in FIG. 13.
- The description will now be given about a first embodiment in which a gaming machine according to this invention is applied to a slot machine.
- FIG. 1 is a front view showing an appearance of a
slot machine 1 according to the embodiment. - Inside a cabinet at the center of the main body of a
slot machine 1, threereels reels reels display window unit 39 is provided in front of the respective reels 2-4. Throughrespective display windows display window unit 39, respective three symbols among those drawn on the outer periphery of the correspondingreels display window unit 39, a total of five pay lines are provided, three of which are horizontal and the remaining two diagonal. Below the display windows 5-7, on the right side, aninsertion slot 8 is provided through which a player inserts one or more medals, the medal serving as a gaming medium. - When a player inserts a medal into the
medal insertion slot 8 prior to start a game, one horizontal center pay line L1 is activated as shown in FIG. 2(a) When two medals are inserted, two upper and lower horizontal pay lines L2A and L2B are added to enable a total of three horizontal pay lines L1, L2A and L2B as shown in FIG. 2(b). When three medals are inserted, all the five pay lines L1, L2A, L2B, L3A and L4B are activated as shown in FIG. 2(c). Each circle sign shown in these figures represents a symbol drawn on the reels 2-4. - On an
machine front panel 38 to the left of the display windows 5-7, there are provided a symbol combination continuousactuation enhancer indicator 9, a symbol combination continuousactuation enhancer indicator 10, areplay indicator 11, agame stop indicator 12, three gaming medal insertion number indicator lamps 13-15, a depositionamount display unit 16, and astart lamp 17. Each of the indicators 9-12 and the gaming medal insertion number indicator lamps is controlled to be on in accordance with the state of the ongoing game, thereby informing a player of the state of the ongoing game and the number of inserted medals. The depositionamount display unit 16 is composed of three digits of 7-segment LEDs (light emitting diodes) and displays the number of medals currently credited within the machine. Thestart lamp 17 blinks when the reels 2-4 can be started. - On the
machine front panel 38 to the right of the display windows 5-7, there are provided a bonuscount display unit 18, aWIN lamp 19, a payoffamount display unit 20 and aninsertion lamp 21, positioned from the top in this order. The bonuscount display unit 18 is composed of three digits of 7-segment LEDs and digitally displays, when a player wins a bonus game, the remaining number of times for possibly winning at an RB and JAC games. TheWIN lamp 19 is lighted when symbols of a winning combination appear on an activated pay line. The payoffamount display unit 20 is composed of three digits of 7-segment LEDs and displays the number of medals to be paid out when a game is won. Theinsertion lamp 21 is lighted when themedal insertion slot 8 can receive a medal. - The reel
display window unit 39 comprises a liquid crystal display panel 39 d (described later) laminated thereon as an electric display panel. The liquid crystal panel 39 d can display various game information and game effect images. At the left-hand lower portion of themachine front panel 38, there are provided a cross key 23, an A-button 24, a B-button 25, a one depositedmedal insertion switch 26, two depositedmedals insertion switch 27, and three depositedmedals insertion switch 28. The cross key 23 can be switch-operated in either of the four directions, namely, upward, downward, leftward and rightward directions, and is utilized upon selecting information to be displayed on the liquid crystal display panel 39 d through concurrent operation with A- and B-buttons. The deposited medal insertion switches 26-28 are used when one to three medals are bet on one game instead of medal insertion into themedal insertion slot 8 when the depositionamount display unit 16 displays the number of credited medals. - Below the reel
display window unit 39, there are provided a depositedmedal adjustment switch 29, astart lever 30 and stopbuttons medal adjustment switch 29 is used for adjusting the medals credited within the machine. When thestart lever 30 is operated, the reels 2-4 start rotating simultaneously. The stop buttons 31-33 are disposed corresponding to the respective reels 2-4. Each of buttons 31-33 is operatively activated when each of the reels 2-4 reaches a predetermined rotational peed, and stops rotation of the respective reels 2-4 in response to the player's operation. - A
medal receiving tray 34 is provided at the front bottom of theslot machine 1. Themedal receiving tray 34 serves to stock the medals paid out from amedal payout opening 35. At the front top of theslot machine 1, adividend display unit 36 is provided for displaying the number of medals to be paid out when a game is won. - FIG. 3 is a vertical cross-sectional view of the reel
display window unit 39. FIG. 4 is an exploded perspective view of the reeldisplay window unit 39. As shown in FIG. 3, the reeldisplay window unit 39 is provided in front of therespective reels display window unit 39 comprises a transparent acrylic plate 39 a, a reel glass base 39 b, a bezel metal frame 39 c, a liquid crystal display panel 39 d, a liquid crystal holder 39 e, a diffusion sheet 39 f, alight guiding plate 39 g, a reflection sheet 39 h, a backlight frame 39 i and anantistatic sheet 39 j, in this order from the near side of the machine. - As shown in FIG. 3, the reel
display window unit 39 is fitted to themachine front panel 38 in such a manner thatrespective brackets 39 ba provided to the reel glass base while protruding upward and downward thereof are screwed onto the rear of themachine front panel 38 via respective screws 39 k. In this connection, therespective brackets 39 ba provided to the reel glass base 39 b are not shown in FIG. 4. - The liquid crystal display panel39 d is a transparent electric display panel made of ITO or the like, which is disposed in front of the respective reels 2-4 to allow the same to be seen through the panel 39 d. The rear side of the periphery of the display unit is held by a liquid crystal holder 39 e. The
light guiding plate 39 g is made of a substantially light transparent resin panel and has a lens cut formed therein for guiding the light having entered theplate 39 g from the upper and lower side faces thereof to the rear side of the liquid crystal panel 39 d. Above and below thelight guiding plate 39 g, a pair ofillumination devices 39 m is provided for illuminating the liquid crystal display panel 39 d along the upper and lower side faces of thelight guiding plate 39 g, respectively. The diffusion sheet 39 f is made of a substantially light transparent resin sheet and serves to diffuse the light guided by thelight guiding plate 39 g to uniformize the light illuminated to the liquid crystal display panel 39 d. The reflection sheet 39 h is a sheet for reflecting the light, which has emitted from theillumination device 39 m to thelight guiding plate 39 g, toward the liquid crystal display panel 39 d side. - In the diffusion sheet39 f, the
light guiding plate 39 g, the reflection sheet 39 h and the backlight frame 39 i, there are provided openings 5 a, 5 b, 5 c and 5 d constituting adisplay window 5, openings 6 a, 6 b, 6 c and 6 d constituting adisplay window 6, and openings 7 a, 7 b, 7 c and 7 d constituting adisplay window 7. Theopenings 5 a-5 d, theopenings 6 a-6 d and theopenings 7 a-7 d are superposed to constitute a substantially light transparent area. The symbols drawn onreels - The reel glass base39 b, the bezel metal frame 39 c, the liquid crystal panel 39 d, the liquid crystal holder 39 e, the diffusion sheet 39 f, the
light guiding plate 39 g, the reflection sheet 39 h, the backlight frame 39 i, theantistatic sheet 39 j and theillumination device 39 m constitute an electric display device, which is disposed in front of the reels 2-4 and allows the symbols drawn on reels 2-4 to be seen through the substantially light transparent area thereof. - The liquid crystal display panel39 d is held by the liquid crystal holder 39 e to be integrated with the diffusion sheet 39 f, the
light guiding plate 39 g and the reflection sheet 39 h, the periphery of which is inserted into the bezel metal frame 39 c. Through this insertion, the front side of the periphery of display unit of the liquid crystal display panel 39 d is held by the bezel metal frame 39 c. - The liquid crystal display panel39 d, the liquid crystal holder 39 e, the diffusion sheet 39 f, the
light guiding plate 39 g and the reflection sheet 39 h integrated by being fitted into the bezel metal frame 39 c are further inserted in the reel glass base 39 b at the circumference thereof to be supported by the reel glass base 39 b in such a state that the front face of the display unit of the liquidcrystal display panel 39 is opened. The transparent acrylic plate 39 a is pressed to the front face of the reel glass base 39 b by fitting the reel glass base 39 b with a screw 39 k to thefront panel 38 of the machine to cover the opening of the front face of the display unit of the liquidcrystal display panel 39. - The backlight frame39 i is made of a white resin plate and holds the bezel metal frame 39 c, the liquid crystal display panel 39 d, the liquid display holder 39 e, the diffusion sheet 39 f, the
light guiding plate 39 g and the reflection sheet 39 h, which are supported by the reel glass base 39 b, to the reel glass base 39 b from behind of them. Theantistatic sheet 39 j is transparent and adhered to the back face of the backlight frame 39 i with a double-sick tape, and covers the back face of the respective apertures 5 d, 6 d and 7 d formed in the backlight frame 39 i. - FIG. 5 is an enlarged perspective view of an
illumination device 39 m disposed along the lower side face of thelight guiding plate 39 g. Theillumination device 39 m being disposed along the upper side face of thelight guiding plate 39 g has the same configuration as the above illumination device. - As shown in this figure, each
illumination device 39 m comprises a plurality ofhigh brightness LEDs 39m 2 disposed on the upper end face of aboard 39m 1. Theboard 39m 1 is shaped as an elongated plate, and aconnector 39m 3 is provided at one lengthwise end thereof to be used to connect a wiring for power supply. The respectivehigh brightness LEDs 39m 2 emit white light and are arrayed in a line along the lengthwise direction of theboard 39m 1 on the upper end face of theboard 39m 1.Respective illumination devices 39 m are disposed along the upper and lower faces of thelight guiding plate 39 g while keeping the upper end face of theboard 39m 1 toward thelight guiding plate 39 g side to illuminate the light emitted from thehigh brightness LEDs 39m 2 to thelight guiding plate 39 g. The emitted light is reflected from the reflection sheet 39 h to the diffusion sheet 39 f to be diffused, and then illuminates the liquid crystal display panel 39 d from the rear side. - FIG. 6 shows symbol sequences drawn on the outer periphery of the
reels third reels reel - There are seven kinds of symbols, i.e. “
Red 7” represented by a digit with oblique lines in a net; “Blue 7” represented by a digit with oblique lines from upper right to lower left; “BAR” represented by a pair of alphabetic letters BAR in two columns; “Watermelon” represented by a picture of a watermelon; “Bell” represented by of a picture of a bell; “Plum” represented by a picture of a plum; and “Cherry” represented by a picture of cherries. - Each of reels2-4 is configured as a rotation reel unit shown in FIG. 7 and attached to a frame 41 via a bracket 42. Each of reels 2-4 comprises a reel drum having a
reel band 44 affixed on its outer periphery. The symbol sequence described above is drawn on the outer periphery of thereel band 44. Each bracket 42 is provided with a stepping motor 45 adapted to rotationally drive the correspondingreel - The structure of respective reels2-4 is shown in FIG. 8. In this figure, similar parts as in FIG. 7 are designated with the same reference signs and are not described herein. A
lamp case 46 is provided inside the reel drum 43 behind thereel band 44. In the respective three compartments of thelamp case 46,back lamps back lamps 47 a-47 c are constituted of a white LED and attached to the back face of thelamp case 46. Aphotosensor 49 is also attached to the bracket 42. Thephotosensor 49 detects ashield 50 provided on the reel drum 43 passing over the photosensor 49 when the reel drum 43 rotates. - Each of
back lamps 47 a-47 c is controllably lighted by a lamp drive circuit described later. Each of the lighted backlamps 47 a-47 c separately illuminates three symbols positioned in front of it out of the symbols drawn on thereel band 44 to project the respective three symbols onto the respective display windows 5-7. - FIG. 9 shows a table of winning symbol combinations predetermined in the
slot machine 1 in accordance with the embodiment, which is shown on thepayoff display unit 36 at the front top of theslot machine 1. In a ordinary game, when a combination of symbols “Red 7”-“Red 7”-“Red 7”, a combination of symbols “Blue 7”-“Blue 7”-“Blue 7”, or a combination of symbols “BAR”-“BAR”-“BAR” is laid beneath an activated pay line, 15 medals are paid out, and then an R•B (Ordinary-Bonus) game is executed. - Further, in a ordinary game, when three identical symbols “Watermelon” or “Bell” are laid beneath an activated pay line, a small prize is won and 15 medals are paid out. Similarly, in a ordinary game, when a combination of symbols “Bell”-“Bell”-“
Red 7”, a combination of symbols “Bell”-“Bell”-“Blue 7”, or a combination of symbols “Bell”-“Bell”-“BAR” is laid, a small prize is also won and 10 medals are paid out. - Furthermore, in a ordinary game, when three “Plum” symbols are laid beneath an activated pay line, then a player is entitled to a replay, i.e., the player can play an additional game without inserting a medal, although no medal is paid out. This combination of three “Plum” symbols is also a combination for occurring a JAC game winning in the JAC game being played in the course of a RB game. The JAC game refers to a game to obtain a combination of “Plum”-“Plum”-“Plum” just beneath the center pay line L1 in the course of an R•B game.
- Moreover, in a ordinary game, when one “Cherry” symbol stops beneath one activated pay line in the
first reel 3, a small prize is won and two medals are paid out, which is referred to as “two-medal cherry”. During betting three medals, when one “Cherry” symbol stops beneath two activated pay lines, four medals are paid out, which is referred to as “four-medal cherry”. - FIGS. 10 and 11 show circuit configurations arranged on a
main control bard 61 and asub-control board 62, respectively, for controlling the game executing operations of theslot machine 1 described above. - The control unit of the
main control board 61 shown in FIG. 9 comprises amicrocomputer 63 as its major component and additionally a circuit for a random number sampling. Themicrocomputer 63 comprises a main CPU (central processing unit) 64 for performing control operations according to a preset program, a program ROM (read only memory) 65 serving as program storage means, and a backup-capable control RAM (random access memory) 66. To themain CPU 64, a clockpulse generation circuit 67 and afrequency divider 68 for generating reference clock pulses, arandom number generator 69 for generating a certain range of random numbers, and a randomnumber sampling circuit 70 for specifying one of the generated random numbers. In addition, an I/O port 71 is connected for communicating signals with peripheral devices (actuators) described later. TheROM 65 has a storage unit sectioned so as to separately store a winning probability table, a symbol table, a winning symbol combination table and a sequence program. - Examples of principal actuators whose operation is controlled by a control signal from the
microcomputer 63 include the stepping motors 45 for rotationally driving therespective reels start lamp 17, aWIN lamp 19 and a insertion lamp 21), various display units (a depositionamount display unit 16, various indicators 9-12, a bonuscount display unit 18 and a payoff amount display unit 20) and ahopper 72 for containing medals. These are driven by amotor drive circuit 73, an individuallamp drive circuit 74, an individual displayunit drive circuit 75 and ahopper drive circuit 76, respectively. These drive circuits 73-76 are connected to theCPU 64 via the I/O port 71 of themicrocomputer 63. - Examples of major input signal generation means for generating input signals required for the
microcomputer 63 to produce control signals include an inserted medal sensor 8S for detecting a medal inserted through themedal insertion slot 8, astart switch 30S for detecting an operation of thestart lever 30, the above-described deposited medal insertion switches 26-28 and the depositedmedal adjustment switch 29. In addition, there is a reelposition detection circuit 77 for detecting the rotational position ofrespective reels photosensor 49. Thephotosensor 49 is included in the driving mechanism of each of reels 2-4 and not shown in this figure. - The reel
position detection circuit 77 counts the number of driving pulses supplied to each of stepping motors 45 after the reels 2-4 have started rotating, and writes these count values to a predetermined area in the RAM 66. Accordingly, the RAM 66 stores the count value corresponding to the rotational position within a range of one rotation for respective reels 2-4. Thephotosensor 49 detects theshield plate 50 for each rotation of the reels 2-4 to generate a reset pulse. This reset pulse is applied to theCPU 64 via the reelposition detection circuit 77 and causes the count value of driving pulses counted in the RAM 66 to be cleared to “0”. This clearing procedure eliminates the misalignment occurring between the moving display of each symbol and the rotation of each stepping motor 45 every rotation. - Examples of the input signal generation means described above also include a reel
stop signal circuit 78 for stopping a corresponding reel when astop button medal detection unit 72S for counting the number of medals to be paid out from thehopper 72, and a payout completion signal generation circuit not shown. The payout completion signal generation circuit generates a signal indicating the completion of medal payout when the count value of medals actually paid out inputted from themedal detection unit 72S reaches the payoff amount data represented by the count signal inputted from the displayunit drive circuit 75. Each circuit constituting these input signal generation means is also connected to themain CPU 64 via the I/O port 71. - To the I/
O port 71, a sub-controlunit communication port 79 is connected. Themicrocomputer 63 delivers a signal to thesub-control board 62 via the sub-controlunit communication port 79. Thesub-control board 62 shown in FIG. 11 is provided with a main controlunit communication port 80 for receiving this signal. Communication between the sub-controlunit communication port 79 and the main controlunit communication port 80 is preformed only in one direction, namely, from the sub-controlunit communication port 79 to the main controlunit communication port 80. In the embodiment, the signal delivered from the sub-controlunit communication port 79 to the main controlunit communication port 80 is composed of a set including a command type representing its control type in 7-bit length and a parameter representing the content of the command in 8-bit or 24-bit length. - The control unit in the
sub-control board 62 comprises amicrocomputer 81 as its major component and additionally a circuit for sampling random numbers. Themicrocomputer 81 comprises, as with themicrocomputer 63 in themain control board 61, a sub-CPU 82 for performing control operations according to a preset program, a program ROM 83 serving as program storage means, and a backup-capable control RAM 84. To the sub-CPU 82, a clock pulse generation circuit 85 and afrequency divider 86 for generating reference clock pulses are also connected. In addition, an I/O port 87 is connected for communicating signals with the main controlunit communication port 80 and the actuators described below. The sub-CPU 82 calculates data required to display gaming machine data on the liquid crystal panel 39 d on the basis of the command transmitted from themain control board 61 for each game and updates data stored in thecontrol RAM 84 to the data calculated for each game. - Examples of actuators whose operation is controlled by a control signal from the
microcomputer 81 include thehigh brightness LEDs 39m 2 constituting the above-describedillumination device 39 m and the reel backlamps LEDs 39m 2 is controlled by a driving signal from aLED drive circuit 98 connected to the I/O port 87. The lighting of theback lamps 47 a-47 c is controlled by a driving signal from alamp drive circuit 89 connected to the I/O port 87. As input signal generation means for generating input signals required for themicrocomputer 81 to produce control signals, there are the cross key 23, A-button 24 and B-button 25. Further, a gamestatus monitoring timer 97 is connected to the I/O port 87. Thistimer 97 is set by the sub-CPU 82 at the time when a game is started, and measures the period elapsed since the start of the game. - An image control IC (integrated circuit)90 and a
sound source IC 91 are also connected to the I/O 87. To theimage control IC 90, acharacter ROM 92 for storing character data and avideo RAM 93 serving as a memory for color display representation are connected. Theimage control IC 90 displays an image on the liquid crystal display panel 39 d of the reeldisplay window unit 39 under the control of themicrocomputer 81. Themicrocomputer 81 fetches information such as the current game status and the type of winning flag from themain control board 61 via the main controlunit communication port 80 and selects an image effect pattern to be displayed on the basis of the fetched game status and winning flag. Then it controls theimage control IC 90 to make the liquid crystal panel 39 d display the selected pattern. It is also possible to allow the liquid crystal panel 39 d to display information desired by a player through the operation of the cross key 23, A-button 24 and B-button 25. - To the
sound source IC 91, asound ROM 94, in which sound data has been stored, is connected. Thesound source IC 91 makes aspeaker 96 emit a sound via apower amplifier 95 under the control of themicrocomputer 81. Themicrocomputer 81 controls thesound source IC 91 and thepower amplifier 95 to make thespeaker 96 emit such sound effects as a medal insertion sound, a start lever operation sound, a stop button operation sound and a game sound during a bonus game, in accordance with the instructions inputted from themain control board 61 via the main controlunit communication port 80. - In the
slot machine 1 in accordance with the embodiment having the configuration described above, when a player operates thestart lever 30, thestart switch 30S is turned on. This ON signal is detected by themain CPU 64 via the I/O port 71. Themain CPU 64 then controls themotor drive circuit 73 to drive the stepping motors 45, causing rotation of respective reels 2-4. In conjunction with the rotation, themain CPU 64 performs the probability lottery procedure. By referring to a probability lottery table stored in theprogram ROM 65, a lottery for an internal winning mode is performed. The type of the internal winning mode thus drawn and the game status at the time are transmitted to thesub-control board 62 via the sub-controlunit communication port 79. - When respective reels2-4 rotate, a line of moving symbols is variably displayed in each of window 5-7. The player seeks a good timing for operating each of stop buttons 31-33 while observing this variable display at the respective display windows 5-7 and performs push operation for each of stop buttons 31-33 at a suitable timing. This operation for respective stop buttons 31-33 is detected by the
main CPU 64 via the reelstop signal circuit 78. When detected, the supply of driving pulses to respective stepping motors 45 is stopped by the control of themain CPU 64. When the driving pulses to respective stepping motors 45 is stopped, the respective reels 2-4 stop rotating, and the symbols corresponding to the above-described operation timing for each of stop buttons 31-33 are stationarily displayed inside the respective windows 5-7. On this occasion, when the combination of symbols stationarily displayed inside the respective windows 5-7 coincides with a predetermined combination of symbols shown in the payoff table, winning occurs. When the winning occurs, themain CPU 64 controls thehopper drive circuit 76 to drive thehopper 72 and a predetermined number of medals are paid out from thepayout opening 35 into the receivingtray 34. - The type of an internal winning mode and the game status transmitted from the sub-control
unit communication port 79 to thesub-control board 62 is received by the sub-CPU 82 via the main controlunit communication port 80 of thesub-control board 62. During the slot machine game described above, effects of the slot machine game are performed under the control of the sub-CPU 82 which has detected the type of internal winning mode and the game status, such as blinking reel backlamps - Further, in the embodiment, effects in accordance with the type of the internal winning mode and the game status are also displayed under the control of the sub-CPU82 on the liquid crystal display 39 d provided at the reel
display window unit 39 in front of the respective reels 2-4. During the slot machine game described above, the sub-CPU 82 controls theLED drive circuit 98 to light thehigh brightness LEDs 39m 2. The light emitted from thehigh brightness LEDs 39m 2 enters thelight guiding plate 39 g through the upper and lower side faces of theplate 39 g and then exits thelight guiding panel 39 g from its one end face on the side of liquid crystal panel 39 d. The emitted light illuminates the liquid crystal panel 39 d from back face side to make the image displayed on the liquid crystal display panel 39 d visible. - In the
slot machine 1 in accordance with the embodiment, since thehigh brightness LEDs 39m 2 constituting theillumination device 39 m is lighted merely through application of DC current, an inverter circuit is not necessary as opposed to a conventional cold-cathode tube. Therefore, it is possible to prevent an image displayed on the liquid crystal panel 39 d from being disturbed by the noise generated from an inverter circuit and reduce the manufacture cost of theslot machine 1. In addition, since the lighting of thehigh brightness LEDs 39m 2 can be achieved without using a transformer as opposed to a conventional cold-cathode tube, no variation occurs in voltage applied to the high brightness LEDs 39ms among respective members of theslot machine 1 due to the coil loss of the transformer. Therefore, variation in the brilliance among the illuminated liquid crystal panels 39 d of respective members of theslot machine 1 can be avoided. Furthermore, the lightness adjustment of the illumination due to thehigh brightness LEDs 39m 2 can be easily achieved by merely adjusting the amount of current supplied to thehigh brightness LEDs 39m 2 via variable resistance or the like. - In the
slot machine 1 in accordance with the embodiment, the amount of light emitted from theillumination device 39 m can be adjusted by adjusting the amount of current supplied to each of theLEDs 39m 2 arranged in a series on theboard 39m 1 and increasing/decreasing the number of theLEDs 39m 2 to be supplied with power. Therefore, it is possible to adjust the overall light and shade of the liquid crystal panel 39 d constituting the electric display device. - With regard to the above embodiment, the case where the
illumination devices 39 m are provided along the upper and lower side faces of thelight guiding plate 39 g, respectively, is described. However, it is also possible to provide theillumination devices 39 m along the left and right side faces of thelight guiding plate 39 g, respectively, and guide the illumination light emitted from theillumination device 39 m and entered thelight guiding plate 39 g through the left and right side faces thereof to the back face side of the liquid crystal display panel 39 d. - A second embodiment will now be described wherein the gaming machine in accordance with this invention is applied to a slot machine.
- The configuration of the slot machine in accordance with the embodiment is the same as the slot machine according to the first embodiment except the structure of the reel
display window unit 39. FIG. 12 is a vertical cross-sectional view of the reeldisplay window unit 39 in the slot machine in accordance with the second embodiment. FIG. 13 is an exploded perspective view of the reeldisplay window unit 39. In FIGS. 12 and 13, the parts same as those in FIGS. 3 and 4 will be given with the same reference characters and the descriptions thereof will be omitted. - As shown in FIG. 13, the reel
display window unit 39 comprises a protective frame 39 p instead of, and disposed at the same location as, thelight guiding plate 39 g andillumination device 39 m in the reeldisplay window unit 39 in accordance with the first embodiment and anillumination device 39 q instead of, and at the same location as, the reflection sheet h, and is attached to themachine front panel 38 as shown in FIG. 12. The protective frame 39 p serves to maintain distance between theillumination device 39 q and the diffusion sheet f in such a manner that the red, green and blue lights emitted from thehigh brightness LEDs 39q 2, respectively, of the illumination device described later are mixed to illuminate the diffusion sheet 39 f as a white light. - In the embodiment, the electric display device comprises a reel glass base39 b, a bezel metal frame 39 c, a liquid crystal display panel 39 d, a liquid crystal holder 39 e, a diffusion sheet 39 f, a backlight frame 39 i, an
antistatic sheet 39 j, a protective frame 39 p and anillumination device 39 q. - FIG. 14 is an exploded perspective view of the
illumination device 39 q. - The
illumination device 39 q comprises thehigh brightness LEDs 39q 2 arranged in a matrix on one face of a plate-shapedboard 39q 1, excluding the substantially light transparent area, having a substantially same appearance as thelight guiding plate 39 g of the above first embodiment. In theboard 39q 1, an aperture 5 e constituting adisplay window 5, an aperture 6 e constituting adisplay window 6, and an aperture 7 e constituting adisplay window 7 are formed to constitute substantially light transparent areas together with the apertures 5 a and 5 d, the apertures 6 a and 6 d, and the apertures 7 a and 7 d, respectively. Theillumination device 39 q is disposed such that thehigh brightness LEDs 39q 2 are arranged on its one surface oriented toward the back face side of the liquid crystal display panel 39 d. - According to this configuration, the light emitted from the
high brightness LEDs 39q 2 of theillumination device 39 q irradiates the diffusion sheet 39 f as white light resulted from the mixture of the red, green and blue light, and illuminates the back face of the liquid crystal display panel 39 d after being diffused at the diffusion sheet 39 f. - Therefore, according to the slot machine of the embodiment, since the light emitted from the
high brightness LEDs 39q 2 illuminates directly the liquid crystal display panel 39 d, the illumination of the liquid crystal display panel 39 d can be achieved without using thelight guiding plate 39 g. Therefore, the structure of the electric display device can be simplified. Further, through increasing/decreasing the amount of current to be supplied to each of a number ofhigh brightness LEDs 39q 2 arranged on one surface of theboard 39q 1, the amount of the illumination light emitted from theillumination device 39 q can be adjusted over a wide range. Therefore, as opposed to a conventional slot machine requiring a plurality of cold-cathode tubes arranged in thickness direction, it is possible to increase significantly the amount of the illumination light while keeping the thickness of theillumination device 39 q constant. Accordingly, even when the liquid crystal display panel 39 d is of a large size, distance between the reels 2-4 and the liquid crystal display panel 39 d can be maintained constant. As a result, even when a large-size liquid crystal display panel is used, the misalignment between the symbols drawn on the outer periphery of reels 2-4 and the image displayed on the liquid crystal display panel 39 d occurring depending on the player's viewing angle can be suppressed to be small, and effects can be prevented from being impaired. Further, by selecting the lighting area of the respectivehigh brightness LEDs 39q 2 arranged on theboard 39q 1 in a matrix or by adjusting the amount of current supplied to thehigh brightness LEDs 39q 2 in a specified area, it is possible to selectively illuminate a specified area within the liquid crystal display panel 39 d or adjust the lightness of the specified area. As a result, display mode for effect display as well as information display by the electric display device can be diversified. Further, the amount of power consumption of theillumination device 39 q can be reduced. - In the embodiment described above, an illumination means is constituted by disposing the
high brightness LEDs 39q 2 on theboard 39q 1. However, this invention is not limited thereto. For example, an illumination means may be constituted by using the backlight frame 39 i as theboard 39q 1, and arranging thehigh brightness LEDs 39q 2 in a matrix on the front face of the backlight frame 39 i. - In each of the above embodiments, the number of
high brightness LEDs 39m q 2 arranged on theboards 39m q 1 can be appropriately altered in accordance with the amount of light emitted from the respectivehigh brightness LEDs 39m q 2 or the size of the liquid crystal display panel 39 d. As theboards 39m q 1 constituting theillumination devices LED drive circuit 98 is arranged on thesub-control board 62. However, a constitution in which theLED drive circuit 98 is arranged on themain control board 61 is also allowed. Moreover, a constitution is also possible in which only theLED drive circuit 98 is unitized and power is supplied to theLED drive circuit 98 directly from a power source circuit. - In each of the above described embodiments, this invention is applied to the liquid crystal display device provided in a slot machine. However, this invention is not limited to the case but may also be applied to the liquid crystal display device provided in another type of gaming machines such as, for example, a pachinko gaming machine.
- As described above, according to this invention, the electric display panel is illuminated by LEDs to make the image displayed on the electric display panel visible. Since LEDs are lighted merely through application of DC current, no inverter circuit is necessary. Therefore, it is possible to prevent the image displayed on the electric display panel from being disturbed by noise, enhance the quality of the image displayed on the electric display device and reduce the manufacture cost of a gaming machine. Further, since the lighting of LEDs requires no transformer, variations in voltage applied to an illumination means due to coil loss can be avoided among respective members of a gaming machine. Accordingly, variations in lightness of the illumination of the liquid crystal display panel can be prevented. Moreover, the lightness of the illumination can be easily adjusted by merely adjusting the amount of current supplied to LEDs by using variable resistance or the like.
- Although only some exemplary embodiments of this invention have been described in detail above, those skilled in the art will readily appreciate that many modifications are possible in the exemplary embodiments without materially departing from the novel teachings and advantages of this invention. Accordingly, all such modifications are intended to be included within the scope of this invention.
- This application is related to co-pending U.S. patent applications entitled “GAMING MACHINE” referred to as Attorney Docket No. SHO-0019, “GAMING MACHINE” referred to as Attorney Docket No. SHO-0020, “GAMING MACINE” referred to as Attorney Docket No. SHO-0021, “GAMING MACHINE” referred to as Attorney Docket No. SHO-0022, “GAMING MACHINE” referred to as Attorney Docket No. SHO-0023, “GAMING MACHINE” referred to as Attorney Docket No. SHO-0024, “GAMING MACHINE” referred to as Attorney Docket No. SHO-0025, “GAMING MACHINE” referred to as Attorney Docket No. SHO-0026, “GAMING MACHINE” referred to as Attorney Docket No. SHO-0027, “GAMING MACHINE” referred to as Attorney Docket No. SH0-0028, “GAMING MACHINE” referred to as Attorney Docket No. SHO-0029, “GAMING MACHINE” referred to as Attorney Docket No. SHO-0030, “GAMING MACHINE” referred to as Attorney Docket No. SHO-0031, “GAMING MACHINE” referred to as Attorney Docket No. SHO-0032, “GAMING MACHINE” referred to as Attorney Docket No. SHO-0033, “GAMING MACHINE” referred to as Attorney Docket No. SH0-0034, “GAMING MACIHNE” referred to as Attorney Docket No. SHO-0035, “GAMING MACHINE” referred to as Attorney Docket No. SHO-0036, “GAMING MACHINE” referred to as Attorney Docket No. SHO-0037, “GAMING MACHINE” referred to as Attorney Docket No. SHO-0038, “GAMING MACHINE” referred to as Attorney Docket No. SHO-0039, “GAMING MACHINE” referred to as Attorney Docket No. SHO-0040, “GAMING MACHINE” referred to as Attorney Docket No. SHO-0041, “GAMING MACHINE” referred to as Attorney Docket No. SHO-0042, “GAMING MACHINE” referred to as Attorney Docket No. SHO-0043, “GAMING MACHINE” referred to as Attorney Docket No. SHO-0044, “GAMING MACHINE” referred to as Attorney Docket No. SHO-0045, “GAMING MACHINE” referred to as Attorney Docket No. SHO-0046, “GAMING MACHINE” referred to as Attorney Docket No. SHO-0047, “GAMING MACHINE” referred to as Attorney Docket No. SHO-0048, “GAMING MACHINE” referred to as Attorney Docket No. SHO-0049, “GAMING MACHINE” referred to as Attorney Docket No. SHO-0050, “GAMING MACHINE” referred to as Attorney Docket No. SHO-0051, “GAMING MACHINE” referred to as Attorney Docket No. SHO-0052, “MOTOR STOP CONTROL DEVICE” referred to as Attorney Docket No. SHO-0053, “GAMING MACHINE” referred to as Attorney Docket No. SHO-0054, “GAMING MACHINE” referred to as Attorney Docket No. SHO-0055, “GAMING MACHINE” referred to as Attorney Docket No. SHO-0056, and “GAMING MACHINE” referred to as Attorney Docket No. SHO-0057, respectively, all the applications being filed on Oct. 31, 2003 herewith. The co-pending applications including specifications, drawings and claims are expressly incorporated herein by reference in their entirety.
Claims (3)
1. A gaming machine comprising:
variable display means for variably displaying symbols; and
an electric display device disposed in front of the variable display means, and having a light transparent area which shows symbols displayed on the variable display means, from outside of the gaming machine,
wherein said electric display device includes;
an electric display panel displaying an image and
illumination means having a light emitting diode, the illumination means illuminating the electric display panel from therebehind.
2. The gaming machine according to claim 1 , wherein the electric display device comprises a light guiding plate that guides light entered from a side face thereof, to a back face of the electric display device, so as to irradiate the light; and
wherein the illumination means comprises a plurality of the light emitting diodes, each of which is continuously aligned along a side face of the light guiding plate.
3. The gaming machine according to claim 1 , wherein the illumination means comprises a plurality of the light emitting diode provided in matrix on an entire surface of the electric display device excluding the light transmitting area, the light emitting diodes opposing a back face of the electric display device.
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JP2003125822 | 2003-04-30 | ||
JP2003-125822 | 2003-04-30 |
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US (1) | US20040224758A1 (en) |
EP (1) | EP1473683B1 (en) |
CN (1) | CN100333812C (en) |
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ZA (1) | ZA200401684B (en) |
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Also Published As
Publication number | Publication date |
---|---|
CN1589937A (en) | 2005-03-09 |
CN100333812C (en) | 2007-08-29 |
EP1473683B1 (en) | 2012-11-21 |
AU2004200896B2 (en) | 2011-01-06 |
EP1473683A1 (en) | 2004-11-03 |
AU2004200896A1 (en) | 2004-11-18 |
ZA200401684B (en) | 2005-06-29 |
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