CN101059930B - Display system, display unit and its control method - Google Patents
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Abstract
The invention relates to a display system, a display unit and a control method, wherein the display unit comprises a selective drive device and a display module, the selective drive device via at least two signal inputs respectively receives same a first control signal, to check the first control signal and output a second control signal according to the right first control signal to control the display module, thereby improving the display reliability of the display unit. The invention also discloses a relative display system and a control method.
Description
[technical field]
The present invention relates to a kind of display unit, relate in particular to a kind of led display unit.In addition, the invention still further relates to a kind of display system of controlling the method for this display unit and using this display unit.
[background technology]
Light emitting diode (LED) is based on semi-conductive a kind of light emitting source, because its driving voltage is low, and the luminescence efficiency height, long service life, and be widely used in the device of low-voltage driving, so that information demonstration, decorative colors, illumination etc. to be provided.According to using different saw lumbers, light emitting diode can show different colors, as red light emitting diodes, green LED, blue LED, white light-emitting diode etc.The light emitting diode of these different colours is widely used in lamp decoration, lighting field at present; And the light emitting diode combined of these different colours is got up, can form multi-form pixel cell, the pixel that modal three-color light-emitting diode (also being red light emitting diodes, green LED, blue LED) is formed, it can send all visible lights in the big colour gamut, therefore be widely used in different information display module, as LED display.
United States Patent (USP) No. 6016038 (bulletin on January 18th, 2000) has disclosed a kind of light-emitting device that uses different color LEDs.In this light-emitting device, the luminous intensity of the light emitting diode of different colours is an independent variation, thereby produces many different colors; And the relative luminous intensity of the light emitting diode of different colours can be controlled by computing machine.
United States Patent (USP) No. 6777891 (on March 27th, 2003 is open, and on July 17th, 2004 was announced) has just disclosed the display system of another kind of network control.As shown in Figure 1, this display system 80 comprises user interface 81, the treating apparatus 82 that is connected with this user interface 81, the some control device 83A that are connected with this treating apparatus 82,83B, 83C and light emitting diode 84A, the 84B, the 84C that are connected with this control device 83A, 83B, 83C.
During use, Systems Operator or network manager enter network by user interface 81, the 82 output control informations of control and treatment device are to common bus 86, by using address configuration and data protocol, data are distributed to each control device 83A, 83B, input port 831A, the 831B of 83C, 831C by common bus 86 then.Each control device 83A, 83B, 83C receive corresponding data, and then from its output port 832A, 832B, 832C, output is independently based on the control signal of these data.It is luminous that this control signal will drive corresponding light emitting diode 84A, 84B, 84C.Therefore, by this display system 80, can be luminous by light emitting diode 84A, 84B, 84C that network system is controlled respectively not on the same group, thus realize the illumination effect that expection is wanted.
Fig. 2 and Fig. 3 disclose the display system 90 of another kind of network control, and this display system 90 also comprises user interface 91, the treating apparatus 92 that is connected with this user interface 91, the some control device 93A that are connected with this treating apparatus 92,93B, 93C and light emitting diode 94A, the 94B, the 94C that are connected with this control device 93A, 93B, 93C.
During use, Systems Operator or network manager enter network by this user interface 91, the 92 output control informations of control and treatment device.Then by using address configuration and data protocol, at first control information is passed to the first control assembling device 93A, this first control device 93A intercepts a part of control information, as data B1-B3, then second control device 93B is passed in remaining control information (as data B4-B10).This second control device 93B receives the control information that first control device 93A transmits, and as data B4-B10, intercepts a part of control information, as data B4-B6, then the 3rd control device 93C is passed in remaining control information (as data B7-B10).In this display system 90, data protocol as shown in Figure 3, wherein first, second and the 3rd control device receive data B1-B3, B4-B6 and B7-B10 respectively.This first, second and after the 3rd control device handles the data B1-B3, the B4-B6 that receive and B7-B10, export control signal respectively, come corresponding control light emitting diode 94A, 94B, 94C.
Equally, by this display system 90, also can be luminous by light emitting diode 94A, 94B, 94C that network system is controlled respectively not on the same group, thus realize the illumination effect that expection is wanted.
But, because above-described display system 80,90 generally is to transmit signal or data by single-pass news passage, for example only coming Data transmission among Fig. 1 by common bus 86, control device 93A, 93B, 93C by series connection among Fig. 2 come Data transmission.And in the use of reality, display module particularly, as the element of LED display, all need transportation, install, cause display screen after the installation because a transmission channel lost efficacy in these operating process easily, from realizing expecting display effect, this project at particularly urgent is more difficult to calculate and solves.In addition, because that many display systems 80,90 are used for is outdoor, and in outdoor long use, also transmission channel lost efficacy or disconnected easily, thereby also above defective can occur.
In addition, because some control elements are to make with chip, connect with circuit board, lead then.If any one chip, circuit board, lead go wrong in above display system, will cause unique transmission channel to be interrupted, thereby make whole display module can't reach the display effect of expection.And these elements in use, in case go wrong, also will cause unique transmission channel to be interrupted, and causes whole display module can't show Expected Results too.
In view of this, provide a kind of display system that overcomes above defective, display unit with and control method become the technical task that present urgent need solves.
[summary of the invention]
The object of the present invention is to provide a kind of display unit that can effectively improve the demonstration reliability.
Another object of the present invention is to provide a kind of and can effectively improve the control method that display unit shows reliability.
A further object of the present invention is to provide and can effectively improves the display system that shows reliability.
For achieving the above object, the invention provides a kind of display unit, it comprises selects drive unit and the display module that is connected with this selection drive unit.Wherein this selection drive unit comprises at least two signal input parts, these at least two signal input parts receive the first identical control signal respectively, and be transferred to this selection drive unit, whether first control signal that this selection drive unit detects these at least two signal input parts receptions is correct, and can control this display module to export second control signal according to first a correct control signal.
Compared with prior art, the characteristics of display unit of the present invention are: this selection drive unit comprises at least two signal input parts, these at least two signal input parts receive the first identical control signal respectively, and be transferred to this selection drive unit, whether first control signal that this selection drive unit detects these at least two signal input parts receptions is correct, and can control this display module to export second control signal according to first a correct control signal.Whereby, improve the reliability that this display unit shows.
For achieving the above object, the invention provides a kind of control method of display unit, it comprises:
Step 1: receive first control signal from different signal input parts respectively;
Step 2: judge whether this different signal input part receives first control signal correct;
Step 3:, export second control signal based on first a correct control signal;
Step 4: second control signal based on step 3 is controlled display module.
Compared with prior art, the characteristics of the control method of display unit of the present invention are above step 1 to step 4, thereby can effectively improve the reliability that display unit shows.
For achieving the above object, the invention provides a kind of display system, it comprises at least two common bus, at least one selects drive unit and the display module that is connected with corresponding selection drive unit.Wherein each common bus is respectively applied for and receives and transmission of control signals stream; Each selects drive unit to comprise at least two signal input parts, and this signal input part connects with corresponding common bus respectively, to receive the first identical control signal; Whether first control signal that this selection drive unit is examined its signal input part reception is correct, and can control this display module to export second control signal according to first a correct control signal.
Compared with prior art, the characteristics of display system of the present invention are: this display system comprises at least two common bus, at least one selects drive unit and the display module that is connected with corresponding selection drive unit.Wherein each common bus is respectively applied for and receives and transmission of control signals stream; Each selects drive unit to comprise at least two signal input parts, and this signal input part connects with corresponding common bus respectively, to receive the first identical control signal; Whether first control signal that this selection drive unit is examined its signal input part reception is correct, and can control this display module to export second control signal according to first a correct control signal, thereby can effectively improve the reliability that display system shows.
For achieving the above object, the present invention also provides a kind of display system, some display modules that it comprises the selection drive unit of some series connection, connects with corresponding selection drive unit.Wherein each selects drive unit to comprise some to signal input part and signal output part, and each every pair of signal input part selecting drive unit and signal output part are connected the formation channels in series with the signal output part of the selection drive unit of adjacent series connection respectively with signal input part; These some selection drive units receive some control signal streams, wherein every control signal stream flows into corresponding channels in series, and along on the flow direction of this control signal stream, these some selection drive units intercept the first corresponding control signal successively, whether first control signal that each selection drive unit is examined its reception is correct, and can control this display module to export second control signal according to first a correct control signal.
Compared with prior art, the characteristics of display system of the present invention are: some display modules that this display system comprises the selection drive unit of some series connection, connects with corresponding selection drive unit.Wherein each selects drive unit to comprise some to signal input part and signal output part, and each every pair of signal input part selecting drive unit and signal output part are connected the formation channels in series with the signal output part of the selection drive unit of adjacent series connection respectively with signal input part; These some selection drive units receive some control signal streams, wherein every control signal stream flows into corresponding channels in series, and along on the flow direction of this control signal stream, these some selection drive units intercept the first corresponding control signal successively, whether first control signal that each selection drive unit is examined its reception is correct, and can control this display module to export second control signal, thereby can effectively improve the reliability that display system shows according to first a correct control signal.
[description of drawings]
Fig. 1 is a kind of structural representation block diagram of existing display unit.
Fig. 2 is the structural representation block diagram of another kind of existing display unit.
Fig. 3 is the data controlling signal host-host protocol synoptic diagram of display unit among Fig. 2.
Fig. 4 is the structural representation block diagram of first embodiment of the invention display unit.
Fig. 5 and Fig. 6 are respectively judge modules and the structural representation block diagram of selecting module among Fig. 4.
Fig. 7 is the structural representation block diagram of second embodiment of the invention display unit.
Fig. 8 is the structural representation block diagram of third embodiment of the invention display unit.
Fig. 9 is the data controlling signal host-host protocol synoptic diagram of display unit among Fig. 8.
Figure 10 is the structural representation block diagram of fourth embodiment of the invention display unit.
[embodiment]
The present invention is described in detail below in conjunction with accompanying drawing.
Embodiment of the invention display unit, display system are mainly used in devices such as lamp decoration, illumination, information demonstration, but are not limited thereto.This display system mainly comprises user interface, treating apparatus, control device and display module etc.Certainly, this display system also can be replaced this user interface and treating apparatus with master control system under the situation of off line, and directly the control program with the default display effect of input replaces system manager or network manager to come control system to master control system.
In embodiments of the present invention, this display module can one can be controlled light-emitting component, as versicolor light emitting diode, fluorescent light; The pixel that this display module also can be made up of some light-emitting components, as the pixel of forming by red light emitting diodes, green LED and blue LED, also can be the pixel that red light emitting diodes, green LED, blue LED and white light-emitting diode are formed.According to the needs of factors such as display effect, this pixel also can be made up of the light emitting diode of two or more different colours as required.Certainly, this display module is not limited thereto, as the display unit module that constitutes display screen etc.
Control device, treating apparatus and user interface can No. 6777891 (on March 27th, 2003 be open for United States Patent (USP) in embodiments of the present invention, on July 17th, 2004 bulletin) control device, treating apparatus and the user interface that discloses, also other devices that can know for affiliated technical field personnel, circuit, element etc.; And the various address configuration that adopt of this display system and Data Transport Protocol can No. 6777891 (on March 27th, 2003 be open for United States Patent (USP) in embodiments of the present invention, on July 17th, 2004 bulletin) address configuration and the data protocol that discloses, also other address configuration and the Data Transport Protocol that can know for affiliated technical field personnel.
To shown in Figure 6, embodiment of the invention display system 10 comprises user interface 11, the treating apparatus 12 that is connected with user interface 11, is connected two common bus 20A, 20B with this treating apparatus 12 and is connected display unit 100A, 100B, 100C with this two common bus 20A, 20B respectively as Fig. 4.
Should be noted in the discussion above that present embodiment only lists three display unit 100A, 100B, 100C, but be not limited thereto, can be the display unit of any number according to actual needs.Because in the present embodiment, the structure of display unit 100A, 100B, 100C is identical with principle of work, only describes one of them display unit 100A below therefore.
This display unit 100A comprises selection drive unit 200A and the display module 15 that is connected with this selection drive unit 200A.Wherein this selection drive unit 200A comprises control device 131A, 132A and the identification module 14 that is connected with this control device 131A, 132A respectively.
In the present embodiment, this display module 15 is a three-color light-emitting diode 151,152,153, specifically, this identification module 14 has three output ports 1424, be connected with red light emitting diodes 151, blue LED 152 and green LED 153 respectively, be used for drive respective leds 151,152,153.As the case may be, this red light emitting diodes, blue LED and green LED can combine, and form a pixel.As mentioned above, this display module 15 also can be the pixel that monochromatic green LED, multi-color LED or multi-color LED are formed, as the pixel of red light emitting diodes, white light-emitting diode, blue LED and green LED composition.
Wherein, this identification module 14 comprises judge module 141 and selects module 142.This judge module 141 comprises comparison module 1411 and the two first input end mouths 1412 that are connected with this comparison module 1411 and first output port 1413.This selection module 142 comprises bridgt circuit 1421 and second input port 1422, the 3rd input port 1423 and second output port 1424 that are connected with this bridgt circuit 1421.Wherein this identification module 14 has three second output ports 1424, is connected with corresponding red light emitting diodes 151, blue LED 152 and green LED 153 respectively.This first output port 1413 is connected with this second input port 1422.This judge module 141 is a prior art, also other signal judging circuits that can know for affiliated technical field personnel, element etc.This selects module 142 is prior art, and the also signal selection module that can know for affiliated technical field personnel is as the alternative signal selection module.
In the present embodiment, two first input end mouths 1412 of this judge module 141 are connected with the secondary signal input end with first signal input part respectively, and for example the first signal input part 21A is connected with secondary signal input end 22A.Wherein this first signal input part 21A and secondary signal input end 22A are connected to two common bus 20A, 20B last (following detailed description) with first control device 131A and second control device 132A respectively.This selects two the 3rd input ports 1423 of module 142 to be connected with the output terminal of this first control device 131A and second control device 132A respectively.
In the present embodiment, the output terminal of this treating apparatus 12 picks out two common bus 20A, 20B, these two common bus 20A, 20B are connected with second control device 132A with first control device 131A respectively with secondary signal input end 22A by the first signal input part 21A, and this first signal input part 21A goes up the signal identical (following detailed description) of transmission with secondary signal input end 21B.
In the present embodiment,, also promptly should select drive unit 200A, 200B, 200C also identical, needn't give unnecessary details at this because the structure of each display unit 100A, 100B, 100C is identical with principle of work.
During system operation, Systems Operator or keeper are by operation user interface 11, thereby control and treatment device 12 outputs first control signal flows to two common bus 20A, 20B, as shown by arrows.By address configuration and Data Transport Protocol (as the DMX agreement), thereby give corresponding control device 131A, 131B, 131C with the data allocations in first control signal stream.For example: the address of setting first control device 131A is A1, and the data that need to send are D1-D3; The address of setting first control device 131B is A2, and the data controlling signal that needs to send is D4-D6; The address of setting first control device 131C is A3, and the data controlling signal that needs to send is D7-D9.For another common bus, the address of setting second control device 132A is A4 equally, and the data controlling signal that needs to send is D1-D3; The address of setting second control device 132B is A5, and the data controlling signal that needs to send is D4-D6; The address of setting second control device 132C is A6, and the data controlling signal that needs to send is D7-D9.By above setting, thereby guarantee that first control device 131A, 131B, 131C and second control device 132A, the 132B, the 132C that are connected with same identification module 14 obtain same data controlling signal by the first signal input part 21A, 21B, 21C and secondary signal input end 22A, 22B, 22C respectively.For example, after this first control device 131B and second control device 132B obtain data controlling signal D4-D6, export respectively after the processing three independently the second control signal S1-S3 to two the 3rd input ports 1423 of identification module 14.
Because the principle of work of each identification module 14 is identical, below be the principle of work that example describes display system 10 only with the identification module 14 that is connected with second control device 132B with first control device 131B.
Two first input end mouths 1412 of this comparison module 14 receive the part that first control signal flows from the first signal input part 21B and secondary signal input end 22B respectively, as data control signal D4-D6.
Carry out matching detection by 1411 pairs of these two first control signal streams of comparison module then.Specifically, whether the host-host protocol rule or the algorithm of this first control signal stream that prestores in this comparison module 1411 meet this host-host protocol rule by this two first control signals stream of this host-host protocol rule detection, if it is then identical, transmission is correct, if different, then transmits incorrect.Certainly, also can adopt other detection matching process,, detect the whether correctly transmission of this two first control signals stream with this part host-host protocol rule then as the part host-host protocol rule of this first control signal stream that in this comparison module 1411, prestores.
This comparison module 1411 is carrying out after matching detection finishes, and signal is judged in output then.The S1-S3 that determines which control device output according to this judgement signal drives corresponding light emitting diode 151,152,153.Specifically, upward first control signal stream and the host-host protocol rules not in conformity of transmission are closed when this comparison module 1411 detects the first signal input part 21B, and first control signal of secondary signal input end 22B transmission stream is when meeting with the host-host protocol rule, thereby signal is judged in output, the 3rd input port 1423 that transference secondary signal input end 22B connects is communicated with second output port 1424, constitute transmission channel, thereby the S1-S3 of second control device 132B output is driven corresponding light emitting diode 151,152,153, and another the 3rd input port 1423 and second output port 1424 disconnect.
In like manner, upward first control signal stream and the host-host protocol rules not in conformity of transmission are closed when this comparison module 1411 detects secondary signal input end 22B, and first control signal of first signal input part 21B transmission and host-host protocol rule are when meeting, thereby signal is judged in output, the 3rd input port 1423 of conveying first signal input part 21B connection is communicated with second output port, constitute transmission channel, thereby the S1-S3 that the defeated 131B of first control device is gone out drives corresponding light emitting diode 151,152,153, and another the 3rd input port 1423 and second output port 1424 disconnect.
If first control signal stream that this comparison module 141 detects on first signal input part 21B transmission and the secondary signal input end 22B does not all meet with the host-host protocol rule, thereby signal is judged in output, allow two the 3rd input ports 1423 and second output port 1424 disconnect, therefore should select not output of module 142, this can effectively be avoided display module 15 to receive bad signal and damage, and the security of display system 10 is provided.
If first control signal stream that this comparison module 141 detects on first signal input part 21B transmission and the secondary signal input end 22B all meets with the host-host protocol rule, then in two the 3rd input ports 1423 is connected with second output port 1424, thereby output S1-S3 drives corresponding light emitting diode 151,152,153.
As known from the above, first embodiment of the invention display system 10 adopts redundant transmission system, thereby has increased reliability of data transmission greatly, improves the demonstration reliability of display system 10 integral body.Specifically, break down in X, Y or Z place in Fig. 4, even disconnect, this display system 10 still can normally show.
Although above embodiment display system 10 can improve reliability of data transmission to a certain extent.But if among Fig. 4 break down simultaneously in X, Z two places, this display system 10 but can not normally show.
As shown in Figure 7, in order to overcome the above problems, second embodiment of the invention provides a kind of display system 10 ' of bidirectional data transfers.Wherein second embodiment uses identical label with the first embodiment components identical, needn't give unnecessary details at this.
Second embodiment is different with first embodiment to be, treating apparatus 12A, 12B that this user interface 11 is identical with two connect.These two treating apparatus 12A, 12B are identical with treating apparatus 12 among first embodiment respectively, be connected with two common bus 20A ', 20B ' respectively, and transmission direction are opposite, as shown by arrows.Specifically, this treating apparatus 12A exports first control signal and flows to a common bus 20A '.By address configuration and Data Transport Protocol, thereby give corresponding control device 131A, 131B, 131C with the data allocations in first control signal stream.For example: the address of setting first control device 131A is A1, and the data controlling signal that needs to send is D1-D3; The address of setting first control device 131B is A2, and the data controlling signal that needs to send is D4-D6; The address of setting first control device 131C is A3, and the data controlling signal that needs to send is D7-D9.
Equally, this another treating apparatus 12B exports second control signal and flows to another common bus 20B '.By address configuration and Data Transport Protocol, thereby give corresponding control device 132A, 132B, 132C with the data allocations in second control signal stream.Specifically, the address of setting second control device 132A is A7, and the data controlling signal that needs to send is D1-D3; The address of setting second control device 132B is A8, and the data controlling signal that needs to send is D4-D6; The address of setting second control device 132C is A9, and the data controlling signal that needs to send is D7-D9.
By above setting, thereby guarantee that also first control device 131A, 131B, 131C and second control device 132A, the 132B, the 132C that are connected with same identification module 14 obtain same data controlling signal by the first signal input part 21A, 21B, 21C and secondary signal input end 22A, 22B, 22C respectively.
In the present embodiment, the structure of identification module 14 is basic identical with first embodiment with principle of work, and this needn't give unnecessary details again; Difference is: if first control signal stream is different with the host-host protocol of second control signal stream, host-host protocol rule or algorithm that these two kinds of control signals that then need prestore in comparison module 1411 flow, whether receive correct control signal so that can judge first control device 131A, 131B, 131C and second control device 132A, 132B, 132C respectively, concrete judgment mode is as described in first embodiment.
Because second implements the structure of display system 10 ', even therefore break down simultaneously at X, Y, Z three places, this display system 10 ' but still can normally show, thereby further improve the display system whole reliability.
Fig. 8 and Figure 9 shows that third embodiment of the invention, itself and the identical label of first embodiment components identical use needn't be given unnecessary details at this.The 3rd embodiment is different with first embodiment to be: first control signal stream for the treatment of apparatus output 12 is not to be transferred to corresponding selection drive unit 131A ', 131B ', 131C ', 132A ', 132B ', 132C ' by common bus 20A, 20B, and the structure of each display unit 100A ', 100B ', 100C ' is different with above embodiment, also promptly select the structure of drive unit 200A ', 200B ', 200C ' different, below describe in detail with above embodiment.
In the present embodiment, because this selects the structure of drive unit 200A ', 200B ', 200C ' identical with principle of work, therefore, below only disclose and select drive unit 200A '.
This selection drive unit 200A ' comprises control device 131A ', 132A ' and identification module 14.Wherein the structure of this identification module 14 is basic identical with first embodiment with principle of work, needn't give unnecessary details at this.
This control device 131A ' comprises a pair of signal input part 21A ' and signal output part 23A, and this control device 132A ' comprises a pair of signal input part 22A ' and signal output part 24A.
Wherein the signal input part 21B ' of this control device 131B ' is connected with the signal output part 23A of this control device 131A ' and the signal input part 21C ' of this control device 131C ' respectively with signal output part 23B, form channels in series, transmit first control signal stream, below describe in detail.
The signal input part 22B ' of this control device 132B ' is connected with the signal output part 24A of this control device 132A ' and the signal input part 22C ' of this control device 132C ' respectively with signal output part 24B, form channels in series, transmit second control signal stream, below describe in detail.
During work, flow to into corresponding channels in series from first control signal for the treatment of apparatus 12 outputs, also promptly this first control signal stream passes to first control device 131A ' by signal input part 21A ', this first control device 131A ' intercepts a part of data controlling signal, as D1-D3, then remaining data controlling signal D4-D9 is exported by signal output part 23A, next first control device 131B ' receives this data controlling signal D4-D9 from signal input part 21B ', and intercept a part of data controlling signal, as D4-D6, again remaining data controlling signal D7-D9 is exported by signal output part 23B after inciting somebody to action, this first control device 131C ' receives this remaining data controlling signal by signal input part 21C ', as D7-D9.It should be understood that and only list three control device among Fig. 8 showing explanation, but the present invention is not limited thereto, the quantity of concrete control device requires to decide according to reality.
Equally, flow to into corresponding channels in series from first control signal for the treatment of apparatus 12 outputs, also promptly first control signal stream passes to second control device 132A ' by signal input part 22A ', this second control device 132A ' intercepts a part of data controlling signal, as D1-D3, then remaining data controlling signal D4-D9 is exported by signal output part 24A, next second control device 132B ' receives this data controlling signal D4-D9 from signal input part 22B ', and intercept a part of data controlling signal, as D4-D6, again remaining data controlling signal D7-D9 is exported by signal output part 24B after inciting somebody to action, this second control device 132C ' receives this remaining data controlling signal by signal input part 22C ', as D7-D9.It should be understood that and only list three control device among Fig. 8 showing explanation, but the present invention is not limited thereto, the quantity of concrete control device requires to decide according to reality.
By above setting, thereby guarantee that first control device 131A ', 131B ', 131C ' and second control device 132A ', the 132B ', the 132C ' that are connected with same identification module 14 obtain same data controlling signal by signal input part 21A ', 21B ', 21C ' and signal input part 22A ', 22B ', 22C ' respectively.
Whether this identification module 114 will correctly detect judgement to the data controlling signal that is input to connected first control device and second control device (as first control device 131A ' and second control device 132A '), its detection method and principle and first embodiment are basic identical, needn't give unnecessary details at this; Difference is: because the data controlling signal difference that each identification module 114 is received, therefore corresponding data signal transmission protocol rule or algorithm can prestore in each identification module 114 respectively, so that can carry out decision operation respectively, as described in second embodiment.
By present embodiment display system 10 " structure; this display system 10 " also can reach the effect of the data transmission credibility identical with first embodiment, also promptly in Fig. 8 X, Y or Z place break down or disconnect, this display system 10 " still can normally show, thereby improve display system 10 " the reliability that shows of integral body.
The 3rd embodiment and first embodiment effect on reliability of data transmission are basic identical, and break down simultaneously in X, Z two places in Fig. 8 occurring, this display system 10 " but can not normally show.
As shown in figure 10, in order to overcome the above problems, fourth embodiment of the invention also provides a kind of display system 10 of bidirectional data transfers " '.Wherein the 4th embodiment element same as the previously described embodiments uses identical label, needn't give unnecessary details at this.
Among the 4th embodiment, as shown by arrows, the Data Transport Protocol of first control signal stream of exporting from treating apparatus 12A is identical with the 3rd embodiment, according to the method for embodiment three, respectively data controlling signal is passed to first control device 131A ', 131B ', 131C ' by signal input part 21A ', 21B ', 21C '.But the method for transmitting signals of second control signal of exporting from treating apparatus 12B stream is different with the 3rd embodiment, but principle of work is identical.Specifically, second control signal stream from treating apparatus 12B output, pass second control device 132C ' by signal input part 22C ', this second control device 132C ' intercepts a part of data controlling signal, as D7-D9, then remaining data controlling signal D1-D6 is passed to next second control device 132B ' by signal input part 22B ', this next one second control device 132B ' intercepts a part of data controlling signal, as D4-D6, again remaining data controlling signal D1-D3 is passed to next second control device 132A ' by signal input part 22A ' again after inciting somebody to action, this second control device 132A ' receives these remaining data, as D1-D3.
By above setting, thereby guarantee that also first control device 131A ', 131B ', 131C ' and second control device 132A ', the 132B ', the 132C ' that connect with same identification module 14 obtain same data controlling signal by corresponding signal input part 21A ', 21B ', 21C ' and signal input part 22A ', 22B ', 22C ' respectively.
Whether this identification module 1411 will correctly detect judgement to first control device 131A ', 131B ', 131C ' and second control device 132A ', 132B ', the 132C ' data controlling signal that is input to corresponding connection with it, and its detection method and principle and the 3rd embodiment are basic identical.
Therefore, the 4th display system of implementing 10 ' " equally also can reach with second and implement the identical effect of display system 10 ' data controlling signal transmission reliability.
By the introduction of above embodiment, the control method of display unit of the present invention, it comprises:
Step 1: receive first control signal from different signal input parts respectively;
Step 2: judge whether this different signal input part receives first control signal correct;
Step 3:, export second control signal based on first a correct control signal;
Step 4: second control signal based on step 3 is controlled display module.
As further improvement, signal input part described in the step 1 is two-way described first control signal that receives, from reaching the effect as the described raising exhibit stabilization of the second, the 4th embodiment.
As further improvement, step 3 also comprises: incorrect if each described signal input part receives first control signal, and then control described display module and do not receive control signal, thereby avoid display module to receive bad signal and be damaged.
Although the present invention is disclosed by above embodiment, but scope of the present invention is not limited thereto, do not departing under the condition of the present invention design, more than each element, scheme can replace with similar or equivalent element, scheme that affiliated technical field personnel understand.Among for example above embodiment, be to judge by the host-host protocol of control signal whether control device receives correct control signal, the additive method that also available certainly affiliated technical field personnel know is judged or is detected; Although each selects drive unit only to comprise two control device among the above embodiment, also can be more than two as required.In addition, in embodiment three and four, control signal stream is to obtain by the mode that string moves intercepting, and corresponding certainly control device also can move the mode that transmission loads simultaneously by string and obtain corresponding control signal.
Claims (18)
1. display unit, it is characterized in that: this display unit comprises:
Select drive unit, it comprises at least two signal input parts;
Display module is connected with this selection drive unit;
Wherein these at least two signal input parts receive the first identical control signal respectively, and be transferred to this selection drive unit, whether first control signal that this selection drive unit detects these at least two signal input parts receptions is correct, and can control this display module to export second control signal according to first a correct control signal;
Described selection drive unit comprises:
At least two control device, corresponding connection with described signal input part, to receive described first control signal respectively, each control device is exported second control signal according to first control signal of its reception;
Identification module, whether described first control signal that detects in described at least two control device of input is correct, correct second control signal that receives the control device output of described first control signal can be controlled described display module;
Described identification module comprises:
Judge module is connected with described signal input part, and receives on it control signals transmitted respectively and judge whether the transmission of described first control signal is correct, and signal is judged in output;
Select module, be connected with described at least two control device respectively, to receive second control signal of described at least two control device output, and, correct second control signal that receives the control device output of described first control signal can be controlled described display module according to described judgement signal.
2. display unit as claimed in claim 1, it is characterized in that: when described first control signal in described each described control device of judge module detection input was mistake, described identification module was controlled described selection module and is forbidden that described control device is to described display module input signal.
3. display unit as claimed in claim 1 is characterized in that: whether described judge module is correct by judge described first control signal in described at least two control device of input to the host-host protocol of described first control signal of small part.
4. as each described display unit in the claim 1 to 3, it is characterized in that: described two signal input parts receive described first control signal from opposite direction respectively.
5. as each described display unit in the claim 1 to 3, it is characterized in that: described display module comprises at least one light emitting diode or comprises the pixel of being made up of at least one light emitting diode.
6. as each described display unit in the claim 1 to 3, it is characterized in that: described display module comprises at least one pixel, and this pixel comprises red light emitting diodes, blue LED and green LED or red light emitting diodes, blue LED, green LED and white light-emitting diode.
7. the control method of a kind of display unit as claimed in claim 1, it comprises:
Step 1: receive first control signal from different signal input parts respectively;
Step 2: judge whether this different signal input part receives first control signal correct;
Step 3:, export second control signal based on first a correct control signal;
Step 4: second control signal based on step 3 is controlled display module.
8. the control method of display unit as claimed in claim 7, it is characterized in that: signal input part described in the step 1 is to receive described first control signal from opposite direction respectively.
9. as the control method of claim 7 or 8 described display units, it is characterized in that: step 3 also comprises: incorrect if each described signal input part receives first control signal, and then control described display module and do not receive control signal.
10. as the control method of claim 7 or 8 described display units, it is characterized in that: the control display module described in the step 4 is meant the control lumination of light emitting diode.
11. the control method as claim 7 or 8 described display units is characterized in that: in step 2, be by judging to the host-host protocol of described first control signal of small part whether described first control signal is correct.
12. a display system is characterized in that:
At least two common bus, each common bus are respectively applied for and receive and transmission of control signals stream;
At least one selects drive unit, and each selects drive unit to comprise at least two signal input parts, and this signal input part connects with corresponding common bus respectively, to receive the first identical control signal;
At least one display module is with corresponding selection drive unit connection;
Whether first control signal that wherein said selection drive unit detects its signal input part reception is correct, and can control this display module to export second control signal according to first a correct control signal;
Each described selection drive unit comprises:
Some control device, the signal input part from correspondence receives described first control signal respectively;
Each control device is exported second control signal according to first control signal of its reception;
Identification module, whether described first control signal that detects in the described some control device of input is correct, correct second control signal that receives the control device output of described first control signal can be controlled described display module;
Described identification module comprises:
Judge module, corresponding with described signal input part respectively connection, and receive on it control signals transmitted respectively and judge whether the transmission of described first control signal correct, and signal is judged in output;
Select module, be connected with described some control device respectively, receiving second control signal of described some control device output, and, correct second control signal that receives the control device output of described first control signal can be controlled described display module according to described judgement signal.
13. a display system is characterized in that:
The selection drive unit of some series connection, each selects drive unit to comprise some to signal input part and signal output part, and each every pair of signal input part selecting drive unit and signal output part are connected the formation channels in series with the signal output part of the selection drive unit of adjacent series connection respectively with signal input part;
Some display modules are with corresponding selection drive unit connection;
Wherein these some selection drive units receive some control signal streams, wherein every control signal stream flows into corresponding channels in series, and along on the flow direction of this control signal stream, these some selection drive units intercept the first corresponding control signal successively, whether first control signal that each selection drive unit detects its reception is correct, and can control this display module to export second control signal according to first a correct control signal.
Each described selection drive unit comprises:
Some control device, the signal input part from correspondence receives described first control signal respectively;
Each control device is exported second control signal according to first control signal of its reception;
Identification module, whether described first control signal that detects in the described some control device of input is correct, correct second control signal that receives the control device output of described first control signal can be controlled described display module;
Described identification module comprises:
Judge module, corresponding with described signal input part respectively connection, and receive on it control signals transmitted respectively and judge whether the transmission of described first control signal correct, and signal is judged in output;
Select module, be connected with described some control device respectively, receiving second control signal of described some control device output, and, correct second control signal that receives the control device output of described first control signal can be controlled described display module according to described judgement signal.
14. display system as claimed in claim 12 is characterized in that: described at least two common bus comprise two common bus, and transmit described control signal stream on this two common bus respectively the other way around.
15. display system as claimed in claim 13 is characterized in that: described some control signal streams comprise the two control signals stream of correspondence two channels in series of the selection drive unit of the described series connection of two-way inflow.
16. as each described display system in the claim 12 to 15, it is characterized in that: when described first control signal in described each described control device of judge module detection input was mistake, described identification module was controlled described selection module and is forbidden that described control device is to described display module input signal.
17. display system as claimed in claim 16 is characterized in that: whether described judge module is correct by judge described first control signal in the described some control device of input to the host-host protocol of described first control signal of small part.
18. as each described display system in the claim 12 to 15, it is characterized in that: described display module comprises at least one light emitting diode or comprises the pixel of being made up of at least one light emitting diode.
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| CN2007100650029A CN101059930B (en) | 2007-03-30 | 2007-03-30 | Display system, display unit and its control method |
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| CN2007100650029A CN101059930B (en) | 2007-03-30 | 2007-03-30 | Display system, display unit and its control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102065604B (en) * | 2010-11-01 | 2015-01-07 | 深圳市中庆微科技开发有限公司 | Redundant fault-tolerant system for transmitting signals |
| CN102065608B (en) * | 2010-11-16 | 2015-04-01 | 深圳市中庆微科技开发有限公司 | Light emitting diode (LED) control device |
| CN103474029B (en) * | 2013-09-10 | 2015-10-07 | 苏州君嬴电子科技有限公司 | Led display system and control method thereof |
| CN105546182B (en) * | 2016-01-07 | 2017-12-08 | 中国能源建设集团广东省电力设计研究院有限公司 | Nuclear power plant system valve drive control apparatus |
| CN114677954A (en) * | 2022-03-04 | 2022-06-28 | 富满微电子集团股份有限公司 | Signal selection circuit and LED drive chip |
| CN117373377B (en) * | 2023-12-06 | 2024-02-09 | 深圳市绿源半导体技术有限公司 | Signal transmission system and signal transmission control method thereof |
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| US6777891B2 (en) * | 1997-08-26 | 2004-08-17 | Color Kinetics, Incorporated | Methods and apparatus for controlling devices in a networked lighting system |
| CN1758622A (en) * | 2005-11-11 | 2006-04-12 | 哈尔滨工业大学 | Heterogeneous multi-bus data transmission method between information processing device |
| CN201035943Y (en) * | 2007-03-30 | 2008-03-12 | 北京巨数数字技术开发有限公司 | Display system and display unit thereof |
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| US6777891B2 (en) * | 1997-08-26 | 2004-08-17 | Color Kinetics, Incorporated | Methods and apparatus for controlling devices in a networked lighting system |
| CN2355350Y (en) * | 1998-07-22 | 1999-12-22 | 长春通华电子科技开发公司 | Interferrence-free multi-channel switch controller |
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