WO2006030109A1

WO2006030109A1 - Flat-architecture computer system for management of a display device and digitally controlled display device

Info

Publication number: WO2006030109A1
Application number: PCT/FR2005/002231
Authority: WO
Inventors: Jean-Jacques Mulleris
Original assignee: Atuser
Priority date: 2004-09-14
Filing date: 2005-09-07
Publication date: 2006-03-23
Also published as: FR2875312B1; EP1792250A1; FR2875312A1

Abstract

The invention concerns a computer system managing a display device (20), comprising a mother board (1) with processor for managing multimedia functions of the display device (20), a hard disc (30), a first electric power supply member (A1) for powering the mother board (1) and the hard disc (30), an electronic component (40) for transforming data of the mother board (1) into at least one video signal addressed to a video interface component of the display (20), and a flattened removable lid (23) for covering the system architecture. Said system further comprises a software module automatically controlling the display (20), a base support (5) attached to the back of the display (20) and having a matching or substantially flattened shape to be arranged substantially parallel to the plane of the display (20), fixing means (50) being provided on said support (5) to fix the whole set of components of the system.

Description

Computer system with flat architecture for management of a display device and digital control display device

The present invention relates to the field of image presentation devices. The invention relates more particularly to a computer architecture system with a flat architecture for managing a display device, adapted to be fixed for example on the back of a flat screen type display device, and a display device for numerical control including such a system.

Broadcasting of audiovisual information including video images or digital animations has spread widely. It is known in the prior art plasma display panels whose busy volume is important. Indeed, the box that contains these screens must also include the video feed of the screen. These screens also have the disadvantage of releasing heat, which subjects them to a warm-up. They can not be housed in confined spaces such as furniture or display cases with reduced space.

The use of LCDs (Liquid Crystal Display) or plasma screens reduces the thickness of such equipment. However, the information presented can not be easily controlled and the display produced can not be managed dynamically via computer means. There is therefore a need to associate with a video display device or the like a powerful computer management structure of minimal size and equipped with the necessary functions of cooling the electronic components.

It is known in the prior art, from documents US 6 532 152 and DE 201 19 900, devices that complexly combine a PC and a flat screen, without minimizing the thickness of the assembly - therefore the bulk of the system. US 6,243,261 discloses a laptop using a specific housing for distributing electronic components on the back of the case, while the screen is arranged opposite on the front. US 2003/063059 discloses a complex structure used under a hood to insert PC components. These types of computer do not minimize the thickness of the whole.

It is therefore an object of the present invention to overcome one or more of the disadvantages of the prior art by defining a flat architecture computer system for managing a display device compatible with the cooling requirements of the electronic components used for programming and the processing of video functions.

To this end, the invention relates to a computer architecture system with flat architecture for managing a display screen device, comprising a motherboard equipped with a processor for implementing software modules and in particular the management of functions. multimedia device of the display screen device, mass storage means for storing data representative of audio-video / digital images and animations, at least one first power supply member, in particular for powering the motherboard, and the mass storage means, at least one electronic data transformation component for transforming data of the motherboard into at least one video signal to at least one video interface component of the display screen, and a removable cover for covering the architecture of the system, characterized in that it comprises:

a software video servoing module of a flat display screen type display screen comprising a flat slab;

at least one bottom support including fixing members on the back of the display screen, on the flat slab, and having a complementary or substantially flattened shape to be disposed substantially parallel to the plane of the screen; fixing means disposed on said bottom support for fixing all the components of the system; cooling means including at least one forced ventilation device; and

- A spacing between the bottom support and the flat slab vis-à-vis to form at least one ventilation channel provided to remove heat released in particular by the display screen.

According to another feature, a second power supply member is further provided in the flat architecture covered by the cover to in particular supply the display screen device.

According to another particularity, at least one passage for cooling air is arranged along the removable cover and / or along the base support for guiding air in a direction parallel to the base support, inlet openings of air being provided at a first end of this passage, the cooling means including at least one forced ventilation device disposed at the second end of the passage for cooling air, near an outlet opening through which the heated air leaves the interior volume covered by the removable cover.

According to another feature, the base support comprises an aluminum-based radiator plate, air intake and outlet openings being arranged laterally to form the ends of a horizontal passage for cooling air, the card -mère being disposed between the air inlet opening and the mass storage means to be cooled by the incoming air.

In another feature, at least one power supply member is disposed on the side of the air outlet opening. According to another feature, the bottom support is arranged at a distance from the display screen device to form at least one ventilation channel provided to evacuate the heat released in particular by the display screen.

According to another particularity, at least said motherboard and the electronic data transformation component are combined in a component intended to communicate with the display screen. In another feature, the removable cover includes at least one side air inlet opening provided with a filtration system for retaining oil vapors, grease and other fouling particles. In another feature, at least one air inlet opening is provided on one side of the cover and at least one outlet opening is disposed opposite the air inlet opening to provide the extraction heated air, at least one fan being disposed adjacent to said air outlet opening for generating vertical or horizontal airflow tangential to the bottom support.

In another feature, at least one air inlet opening is provided at the front of the screen side and at least one outlet opening is disposed at the rear of the cover.

According to another feature, the removable cover is of the type without ventilation aperture and arranged to be fixed in a sealed manner on the back of the display screen device, said cover being based on a metal adapted to transmit heat by convection and by radiation, a radial ventilation assembly being provided in the lid for stirring the heated air by the components and providing heat transmission through the lid.

According to another feature, the cooling means include at least one local ventilation member associated with the processor of the motherboard and whose height is less than 80 mm.

According to another feature, the cooling means comprise natural convection channels for extracting the heated air in an upward direction.

According to another feature, the set of electronic components is arranged in a flattened volume whose thickness is between 3 and 7 cm. According to another feature, the electronic data transformation component is an integrated graphic chipset type graphics card or a PCI type graphics card (Peripheral Component Interconnect), PCI express or AGP (Advanced Graphie Port), with video display management functions, provided with hardware decompression means, PCI type, PCI express or AGP connection means benefiting from a data bus to broadband. According to another feature, the electronic data transformation component has a TV tuner component and a video acquisition card.

According to another particularity, the system according to the invention comprises means of communication and connection to a network for transmitting and receiving in particular digital audio-video type data. Thus, the connection to a computer network can be made for example via a RJ45 type connector, CPL (powerline), WiFi, Bluetooth®, optical fiber, etc..

In another feature, the system includes a removable data media reader.

According to another particularity, at least one communication interface is provided to enable remote control of the system by a programming server connected to the network and having sources of information to be transmitted remotely, these sources of information notably including data digital, said programming server controlling remote maintenance equipment of said system.

According to another feature, the motherboard is disposed parallel to the base support integrally in an interior volume of the removable cover, said cover being substantially parallel to the display screen, a connector interface connected to the motherboard being deported to present on a surface of the lid:

at least one connector for a mouse and / or a keyboard;

at least one link connector to a network;

- a power supply connector with an on / off button. In another feature, a power connector is provided for establishing a connection to a power source external to the lid and providing power to the first and second bodies power supply unit, an electrical and mechanical interface including an electrical and mechanical interface including the bottom support and an internal connector connected to the second power supply member for securing the system to the back of a flat panel of the display screen device and powering the display screen device.

According to another feature, adaptation means are provided with the video servo software module of the screen for adapting digital data representative of video and / or animations in the format of the display screen. According to another feature, the mass storage means comprise for example a hard disk with a cache memory of several megabytes and the motherboard is of the multiple access type to at least one working memory.

Another object of the present invention is to provide a numerically controlled display apparatus incorporating a performance management system of lesser size for the programming and processing of video functions.

For this purpose, the invention proposes a numerically controlled display device, comprising a flat display screen, characterized in that it comprises on the back of the screen the computer system according to the invention for controlling the display of the device.

The invention, with its features and advantages, will emerge more clearly on reading the description given with reference to the accompanying drawings given by way of non-limiting examples in which: - Figure 1 shows a horizontal sectional view of a system computer according to the invention attached to the back of a TFT type slab,

FIG. 2 represents a perspective view of the front portion of a display apparatus equipped with the numerical control computer system according to the invention; FIG. 3 shows a diagram of the computer system representing the main connections between components of the system; , FIG. 4a shows a view from the rear of a display apparatus equipped with the system according to the invention, while FIGS. 4b and 4c represent sectional views along the BB axis of FIG. 4a of this device. FIGS. 5a and 5b respectively show a front view and a side view of a display apparatus equipped with the computer system of the invention,

FIGS. 6a and 6b show a perspective and side sectional view of a particular embodiment of a display apparatus according to the invention;

- Figures 7 and 8 each show a top view in section of a display apparatus according to the invention.

The computer system according to the invention advantageously has a low profile flat architecture for installing the system on the back of a display screen (20). The system components provide management and control functions of a display screen device (20). As represented in FIGS. 1 and 3, the computer system comprises a motherboard (1) provided with a processor (10) for implementing software modules and in particular the management of multimedia functions of the display screen device ( 20). Mass storage means (30), consisting for example of a hard disk used to store data representative of images and audio-video / digital animations. The hard disk may have a cache of several megabytes, for example 8 MB, and connect to specific connectors (11) such as Integrated Drive Electronic Interface (IDE), Small Computer System Interface (SCSI) or connectors ( 18) SATA type (Serial Advanced Technology Attachment). The cache memory of the hard disk keeps very fast access to the latest files used. Indeed, the cache memory of the hard disk is comparable to a RAM (Random Access Memory), and thus has an access time that is measured in nanoseconds, so many faster than disk access. Moreover, the motherboard (1) can be of the multi-access type to the working memory (in the Dual-Channel method) without dividing the bandwidth of the bus. The mass storage means (30) may also consist of a flash memory card or similar support.

With reference to FIG. 1, the system also comprises at least one first power supply unit (A1) for, in particular, powering the motherboard (1) and the mass storage means (30), a servo software module. video of a flat display screen display screen (20), at least one electronic data transformation component (40) for transforming data of the motherboard (1) into at least one video signal for one or more video interface component (s) of the display screen (20). In one embodiment of the invention, the system may be provided to manage multiple display screens, through a software module provided to manage more than one screen with the same or different display.

A removable cover (23) covers the architecture of the system. This cover (23) for example cooperates with a panel (200, FIG. 2) flanking the display screen (20). To be fixed on the back of a display screen device (20), the system comprises at least one bottom support (5) including fasteners (51) of said support (5) on the back of the screen display (20). These fasteners (51) are for example positioning pins with screwing means. Fixing by screwing can be done directly in a TFT (of Thin Film Transistor) of the screen device (20). The bottom support (5) has a shape complementary to the rear shape of the screen, and preferably substantially flattened to be parallel to the plane of the screen (20) and may comprise an aluminum-based plate serving as a radiator . Fastening means (50) are arranged on said bottom support (5) to secure all the system components, as shown in Figure 1. These fastening means (50) of the system components comprise spacers provided with clips, screws or other locking means for positioning the components parallel to the axis BB of Figure 4a.

Cooling means may also be incorporated in the system according to the invention for cooling the enclosed components in a confined space under the cover (23). At least one forced ventilation device makes it possible to evacuate the heat released by the electronic components and by the display screen (20). In the embodiment of FIG. 1, at least one cooling air passage (4) is arranged along the bottom support (5) to guide the air in a direction (S1) parallel to the base support (5). ). The bottom support (5) can be arranged at a distance from the display screen device (20) to form at least one ventilation channel provided to evacuate the heat released in particular by the display screen (20). As illustrated in particular in Figure 8, air inlet openings (522) are provided at a first end of this passage (4), while at least one forced ventilation member (521) is disposed at the second end of the passage (4) for cooling air, near an outlet opening (523) through which the heated air leaves the interior volume covered by the removable cover (23). In alternative embodiments, the passage (4) allowing the air to circulate may be located at least part along the removable cover (23).

In one embodiment of the invention, the cooling means may include at least one local ventilation unit associated with the processor (10) of the motherboard (1). Thus, a thin ball fan can be fixed, by clipping or screwing for example, on the motherboard (1). The height of this fan, which is not greater than 80 mm, is advantageously and non-limitatively less than 30 mm so that the overall architecture of the system remains flattened with a very small footprint. The base and the radiator of this fan are for example copper for better heat dissipation. The "Watercooling" cooling technique and the use of Pelletier effect elements, a heat pipe heat exchanger system, etc. can also be considered. Heat conduction between the processor (10) and the radiator The fan may further be improved by using a thermal conduction paste on the processor (10).

In the example of FIGS. 1 and 3, a second power supply member (A2) is provided in the flat architecture covered by the cover (23), in particular for powering the display screen device (20). This second power supply unit consists of a multicoupling power supply unit capable of supplying a DC 5 and 12 volt supply to the display screen (20). A reader (31) of removable digital data media of the DVD, CD-ROM or equivalent type may also be incorporated into the computer system of the invention. An operator can thus manipulate a display apparatus (2) equipped with the computer system according to the invention by choosing a medium such as a DVD (Digital Versatile Disc) disc that can be read by the reader to broadcast digital type information on the screen (20). FIG. 1 shows a possible arrangement for the components as a function of the cooling air flow direction (S1), the air inlet and outlet openings (522, 523) being arranged laterally to form the ends. a horizontal passage (4) for cooling air. The motherboard (1) is disposed between the air inlet opening (522) and the mass storage means (30) to be cooled by the incoming air. At least one power supply member (A1, A2) on the other hand is disposed on the side of the air outlet opening (523) because the supply produces a greater heat. Thus the low-heat components such as the reader (31) and the motherboard (1) are not heated by air already heated by the high-heat components. The electronic data processing component (40) can be positioned after the mass storage means (30).

In a preferred embodiment of the invention, the electronic data processing component (40) is of the graphic card type, either an integrated circuit, called a graphics chipset, or a PCI or AGP card type. The system according to the invention also provides for the use of PCI technology Express (PCI express card) or at least similar performance technology. The graphics card can be installed using a PCI Riser Card, which is an insertable element in a PCI slot to add a PCI card parallel to the card. -mother (1). The "Riser Card" allows all components to keep a small footprint in thickness.

In alternative embodiments of the invention, at least said motherboard (1) and the electronic data processing component (40) are combined in a component provided to communicate with the display screen (20). This component makes it possible for example to communicate directly from the motherboard (1) in LVDS signal (Low Voltage Differential Signaling) with the screen (20).

The data transformation component (40) has video display management functions and hardware decompression means. Since the video stream of a DVD disc is compressed, the system must uncompress it to allow display. For this, there are certainly software solutions: software programs can take care of this work. However, the system processor will then run at full speed, and the quality will not be equivalent to that of a living room DVD. The principle of the DVD being to have an irreproachable image quality, the system according to the invention thus provides another type of solution: the hardware (or software) decompression. It is indeed possible to use a video decompression card, for example integrated into the graphics / video card, which makes it possible to obtain an impeccable rendering during the display. In one embodiment of the invention, the system has a circuit for LVDS (Low Voltage Differential Signaling) type linkage. Connection means on a high-speed bus, for example and without limitation the bus FSB (Front Side Bus) of the motherboard (1), are provided on the graphics card to allow communication with the other components of the motherboard (1).

The graphic chipset integrated circuit is designed to use the working memory and thus benefits from the bus of the motherboard (1), for example example the FSB processor bus. The work memory is for example a memory type DDR-RAM, at least one DDR-RAM memory base (13) or the like being disposed on the motherboard (1). The integrated circuit may advantageously utilize AGP technology (accelerated graphics port) for transferring data from other components of the motherboard (1) via a specific interface port (17) and may further integrate a RAMDAC converter. (Random Digital Access Memory to Analogie Converter) running at several hundred megahertz (for example 350 Mhz), which allows to achieve very high resolutions with high refresh rates. For example and without limitation, a resolution of 2048x1536 (pixels) at 75 Hz can be obtained. The system according to the invention is therefore particularly suitable for high definition video applications.

Dynamic Video Memory Technology (DVMT) can be used to optimize the management of shared memory between the motherboard (1) and the graphics circuit. The dual-channel communication method can be used since said memory and the chipset communicate with the processor (10) on the FSB bus. Based on the concept of dynamic allocation and freeing up memory based on the resources required, DVMT technology provides maximum resources for optimal 2D and 3D performance.

With reference to FIG. 2, all the electronic components are arranged in a flattened volume whose thickness (h) is between 3 and 7 cm. It is understood that the motherboard (1) is arranged parallel to the base support (5) integrally in an interior volume of the removable cover (23), the latter being substantially parallel to the screen (20). The interface (100) includes the connection ports of the motherboard (1) usually accessible from outside the housing. A connector interface (101) connected to the motherboard (1) is offset to present on a surface of the cover (23) at least one connector (103) for a mouse and / or a keyboard, at least one connector (102). ) to a network (such as a telecommunications network or a local computer network), and a power supply connector (A) with an on / off button (3). A USB connector (Universal Serial Bus) and a connection for multi-screens with the same image or different images on the different screens can also be provided. A specific multi-screen card or the addition of a card (via the "riser-card" slot) allows the management of a device to one or more display screens. A reset button and an indicator light can also appear on the remote interface (101). The network connection connector (102) may be an RJ45 Ethernet or similar socket for using the Internet. This connector (102) or other equivalent means of communication and connection to a network makes it possible, in particular, to transmit and receive digital audio-video type data via at least one bidirectional channel. A Local Area Network (LAN) controller (16) is provided on the motherboard (1) as shown in Figure 3 and, when the RJ45 socket is connected, controls communications with the network. For the computer network, it should be understood that all the technologies allowing the connection to such a network can be used (for example and without limitation by using RJ45, CPL (powerline), WiFi, Bluetooth®, fiber optical). In embodiments of the invention, all the multimedia connections can be deported, the following connectors for example being provided in particular: jack, RCA, USB, Firewire, amplified sound.

In the embodiment of FIG. 2, the numerically controlled display device (2) equipped with the system according to the invention has an interface input circuit with a remote control assembly (6) consisting, for example an infrared transmitter remote control (6) for controlling the computer system and an infrared receiver (60) with an adapter. The receiver (60) is connected to the motherboard to transmit the commands. A wireless system, an electronic chip control type

Bluetooth®, an internal network, a keypad system, or other physically connected system may also be considered. With software interaction device stored on the motherboard (1), the remote control (6) allows an operator, for example a restaurant manager or bar, to control various commands such as the mute control of the loudspeakers (22). ), the sound volume control, the on / off control, the control for controlling the video disc player (31), the programming control for displaying a selection menu and selecting a file in a library of means for mass storage (30) or digital data available on a server of the network to which the system is connected, etc. The digitally controlled display apparatus (2) may include other types of user interfaces connected by a physical connection to the motherboard (1) to enable control of the display on the screen (20), using a programming software.

In the embodiment of Figure 3, a power connector (A) is provided to connect to a power source external to the cover (23) and provide power to the first and second power supply audits. (A1, A2). The electrical and mechanical interface including the bottom support (5) and an internal connector (24) connected to the second power supply member (A2) allows the system to be attached to the back of a flat panel of the screen device. display (20) and electrically powering the display screen device (20). This interface respects, for example, the micro-ATX standard (Advanced Technology eXtended) or any other IT standard (ATX, BTX, etc.).

The screen of the device (2) is for example a LCD screen of high luminous intensity, for example 500 candela or any other flat screen. This screen can be equipped with a technology type TFT (English "Thin Film Transistor"). The format of the screen may be for example, and not limited to, 20 or 40 inches (50 to 100 cm). The screens may be more or less elongated and diagonally reach dimensions less than 20 inches (50 cm) or greater than 40 inches (100 cm) in embodiments. A plasma-type flat screen is also suitable. As shown in FIG. 1, electronic components attached to the rear of the flat display screen (20) are arranged on a plate having a format of dimensions smaller than or equal to the size of the TFT screen panel ( 20). The various electronic components are distributed in an exploded manner and are arranged flat on the back of the screen (20) to reduce the thickness of the removable device (2).

The computer system according to the invention, which is PC compatible, makes it possible to implement software modules to ensure, for example, image management, a programming calendar, remote maintenance, the processing of marketing data, etc. In one embodiment of the invention, the system manages a sound control circuit of a sound card, a telecommunication control circuit, an input control circuit, a mass storage control circuit, video servo software module of the display screen (20). In addition, adaptation means may be provided with the video servo software module of the screen (20) for adapting digital data representative of video and / or animations in the format of the display screen (20). A video format 4/3, 16/9 or other can be used without appearing on the screen deformation effects. For the reproduction of sound information, the removable device (2) comprises loudspeakers (22) receiving the signal of an amplifier-tuner connected to a music synthesizer-type electronic circuit intended to support a large number of audio sources. while providing an output having CD quality. Any other means using a digital sound processor DSP (of the "Digital Signal Processor") could also be used. At least one audio compressor / decompressor is provided in the motherboard for use with various audio formats. As illustrated in FIGS. 2 and 5a, the loudspeakers (22) are for example arranged on the front face of the frame or panel (200) in which the display screen (20) is mounted.

The system mass storage means (30) is used for storing representative digitized and compressed information audio-video / digital images and animations. It is thus possible to maintain a library of images, summary animations and video information, the video servo software module for managing this library. The electronic data processing component (40) may furthermore have a TV tuner component (satellite, cable or radio, several of these communication modes being able to be used) and a video acquisition card, so that the source data may be external. The use of a video capture card allows the display of data from an external device such as video camera, camcorder, VCR. The system can also be equipped with a telecommunication modem, for example of the ISDN type (Integrated Services Digital Network), PSTN (Switched Telephone Network) or using, for example, DSL or ADSL (for "Asynchronous Digital Subscriber Line") technology. or of the type associated with a radiotelephone (or satellite) network or any other telecommunication equipment associated with other integrated telecommunication media for authorizing the connection with an audiovisual information distribution network controlled by a central server. The display screen device (20) can therefore be remotely controlled by a programming server connected to the telecommunications network and having information sources to be transmitted. This information concerns, for example, communication contents intended for the clientele or the public of the place.

Said programming server makes it possible to control remote maintenance equipment of a display apparatus (2) equipped with the computer system according to the invention. Thus, the state of the display and the progress of the programs to be broadcast can be controlled. Modifications are allowed, for example automatically during a particular event or also in case of detection of a malfunction. Alternatively, a simple infrared receiver (104) for receiving instructions from a keyboard with an IR emitter may also allow control of the system. In one embodiment of the invention, a thermally regulated 100/240 V - 50/60 Hz fan or other power supply of known type provides power to the system via the power supply connector. (AT). This power supply is for example protected against overcurrent and overshoot. In the example of FIG. 3, this power supply is connected on the one hand to a 200-watt ATX power supply unit serving in particular to power the motherboard (1) and the hard disk and on the other hand to a battery box. switching power supply. The motherboard (1) can be equipped for example with an ATX 12V connector (14) for supplying at least one fan (521) and a power connector (12), for example of the CM type. ATX. A single power supply can power the PC and the screen.

Certain variants of the invention will now be described in connection with FIGS. 4a, 4b, 4c, 5a and 5b. The electronic components at the back of the screen (200), confined under the cover (23), can be cooled by a natural or forced ventilation device. The cooling means may comprise natural convection channels for extracting the heated air in an upward direction, as shown in Figures 5a and 5b. At least one air inlet opening (522) is provided on a downwardly facing side of the cover (23) and at least one outlet opening (523) is disposed opposite the inlet opening of air (522) to extract the heated air.

In the variant embodiment of FIGS. 4a, 4b and 4c, at least one fan (521) is disposed adjacent to said air outlet opening (523) to generate an upward air flow in a direction (S2) tangential to the bottom support (5). In the example of FIG. 4b, one or more attachment elements (21) can be provided for inserting the display apparatus (2) into a decorative frame or to hang it vertically along a wall . The air circulation can also be horizontal. Figure 4c shows at least one opening an air inlet (522) at the front of the screen side (20) and at least an outlet opening (523) disposed at the rear of the cover (23).

In addition to a fan near a ventilation outlet duct for extracting air, a localized cooling system may be provided to remove the heat generated by one of the electronic management and control components. The cooling system may include one or more Pelletier effect cells (not shown), in particular for cooling the processor (10) or the feed members (A1, A2). Any other component can also be cooled in this way.

Other variants of the invention will now be described in conjunction with FIGS. 7 and 8.

In embodiments of the system, an internal air stirring device is provided with at least one fan (521) arranged to generate tangential aeration with respect to the screen (20) and the bottom support ( 5) to lower the indoor temperature. Aeration occurs in particular in a zone or passage (4) of cooling air circulation which passes through the electronic components with high heat release. As shown in Figure 7 for a large screen (40 inches for example), the horizontal tangential air flow represented by the dotted arrow also runs along the electronic components of lesser heat release such as the motherboard (1). ). The heated air is extracted from the back of the display screen device (20) by one or more openings (523) of the cover (23). At least one air inlet opening (522) may be located at the front of the display screen device (20).

In the example of Figure 8, the removable cover (23) comprises at least one lateral air inlet opening (522) provided with a filtration system (7) for retaining the oil vapors, fats and other fouling particles. The filtration system has a smoke and grease filter. Each ventilation inlet (500) may advantageously be provided with a filter and / or a grid for this purpose. A wire mesh can be provided in front of the inlet and / or outlet openings (522, 523), the mesh size of this grid being determined to suppress or limit the wave emission. In an alternative embodiment, a metal wool or similar structure, incorporating active carbon particles, is disposed in the openings in order firstly to suppress or limit the emission of waves and secondly to fix and oxidize the particles of carbon. 'oil.

In the embodiment of FIGS. 6a and 6b, the removable cover (23) is of the type without a vent opening and arranged for sealingly attaching to the back of the display screen device (20). Radiative cooling and indoor air recycling make it possible to homogenize the internal temperature, which remains at a low level, for example at a temperature below 40 ° C. The rear surface or the entire cover (23), for example based on aluminum (cast aluminum oxide) or other suitable metal, provides heat transmission by radiation and convection. As shown in FIG. 6b, a radial ventilation assembly (520) is provided in the rear portion of the display screen device (20) to optimize this heat transfer through the cover (23). In other words, the cover (23) acts as a heat exchanger with the outside. The use of at least two fans to achieve radial ventilation in the removable display device (2) ensures a flow of air in a rotary direction (S3), as shown in Figure 6a. In the embodiment of FIG. 6a, an embossing is carried out for the cover (23) so that a constant mechanical strength is obtained while reducing the thickness by increasing the section inertia of the cover (23). ). Heat exchanges with the outside are thus improved because, due to the reduction in thickness, the thermal resistance of the cover (23) is reduced, and the heat exchange surface with the internal air to be cooled is increased. One of the advantages of equipping a display apparatus with the computer system according to the invention is the modularity and the flexibility of the dynamic display which is obtained, the space requirement being moreover very limited. It should be obvious to those skilled in the art that the present invention allows embodiments in many other specific forms without departing from the scope of the invention as claimed.

Claims

A flat architecture computer system for managing a display screen device (20), comprising a motherboard (1) provided with a processor (10) for the implementation of software modules and especially the management of multimedia functions of the display screen device (20), mass storage means (30) for storing data representative of audio-video / digital images and animations, at least a first power supply member (A1) for, in particular, supplying the motherboard (1) and the mass storage means (30) with at least one electronic data transformation component (40) for transforming data of the motherboard (1) into at least one a video signal destined for at least one video interface component of the display screen (20), and a removable cover (23) for covering the architecture of the system, characterized in that it comprises: a video servo software module of a display screen

(20) flat display screen type having a flat slab;

at least one bottom support (5) including fasteners (51) on the back of the display screen (20), on the flat slab, and having a complementary shape or substantially flattened to be disposed substantially parallel to the screen plane (20);

- fixing means (50) disposed on said bottom support (5) for fixing all the system components;

cooling means including at least one forced ventilation device; and - a spacing between the base support (5) and the flat slab vis-à-vis to form at least one ventilation channel provided to remove the heat released in particular by the display screen (20).

2. Computer system according to claim 1, wherein a second power supply member (A2) is further provided in the flat architecture covered by the cover (23), in particular for powering the display screen device (20). .

Computer system according to claim 1 or 2, wherein at least one cooling air passage (4) is arranged along the removable cover (23) and / or along the base support (5) for guiding the air in a direction parallel to the base support (5), air inlet openings (522) being provided at a first end of this passage (4), the cooling means including at least one forced ventilation device ( 521) disposed at the second end of the cooling air passage (4), near an outlet opening (523) through which the heated air leaves the interior volume covered by the removable cover (23).

The computer system according to one of claims 1 to 3, wherein the bottom support (5) comprises an aluminum radiator-forming plate, air intake and outlet openings (522, 523) being arranged laterally to form the ends of a horizontal cooling air passage (4), the motherboard (1) being disposed between the air inlet opening (522) and the mass storage means (30) to be cooled by incoming air.

The computer system of claim 3 or 4, wherein at least one power supply member (A1, A2) is disposed on the side of the air outlet opening (523).

6. Computer system according to one of claims 1 to 5, characterized in that at least said motherboard (1) and the electronic data processing component (40) are combined in a component intended to communicate with the display screen. display (20).

7. Computer system according to one of claims 1 to 6, wherein the removable cover (23) comprises at least one inlet opening air filter (522) provided with a filtration system (7) for retaining oil vapors, grease and other fouling particles.

The computer system of one of claims 1 to 7, wherein at least one air inlet opening (522) is provided on one side of the cover (23) and at least one outlet opening (523) is disposed at the opposite of the air inlet opening (522) for extracting the heated air, at least one fan (521) being disposed adjacent to said air outlet opening (523) for generating vertical or horizontal airflow tangential to the bottom support (5).

Computer system according to one of claims 1 to 7, wherein at least one air inlet opening (522) is provided at the front of the screen side (20 and at least one outlet opening (523). is disposed at the rear of the lid (23).

Computer system according to Claim 1 or 2, in which the removable cover (23) is of the type without a ventilation aperture and arranged for sealingly attaching to the back of the display screen device (20), said cover (23) being based on a metal adapted to transmit heat by convection and radiation, a radial ventilation assembly (520) being provided in the cover (23) for stirring the air heated by the components and ensuring a transmission heat through the lid (23).

11. The computer system according to one of claims 1 to 10, wherein the cooling means include at least one local ventilation member associated with the processor (10) of the motherboard (1) and whose height is less than 80 mm.

12. Computer system according to one of claims 1 to 11, wherein the cooling means comprise natural convection channels for extracting the heated air in an upward direction.

13. Computer system according to one of claims 1 to 12, wherein the set of electronic components is disposed in a flattened volume whose thickness (h) is between 3 and 7 cm.

Computer system according to one of Claims 1 to 5, in which the electronic data processing component (40) is an integrated graphic chipset type graphics card or a PCI, PCI Express or AGP graphics card having management functions. video display, provided with hardware decompression means, PCI, PCI express or AGP type connection means benefiting from a high-speed data bus.

The computer system of one of claims 1 to 14, wherein the electronic data processing component (40) has a TV tuner component and a video capture card.

16. Computer system according to one of claims 1 to 15, comprising means (102) for communication and connection to a network for transmitting and receiving including digital audio¬ video type data.

Computer system according to one of claims 1 to 16, comprising a reader (31) of removable digital data carriers.

Computer system according to claim 16 or 17, wherein at least one communication interface is provided to allow remote control of the system by a programming server connected to the network and having sources of information to be transmitted remotely. sources of information including in particular digital data, said programming server controlling a remote maintenance equipment of said system.

Computer system according to one of claims 1 to 18, wherein the motherboard (1) is arranged parallel to the base support (5) integrally in an interior volume of the removable cover (23), said cover (23) being substantially parallel to the display screen (20), a interface connection (101) connected to the motherboard (1) being offset to present on a surface of the cover (23):

at least one connector (103) for a mouse and / or a keyboard;

at least one connector (102) for connection to a network; - a power supply connector (A) with an on / off button (3).

The computer system of one of claims 2 to 19, wherein a power connector (A) is provided to connect to a power source external to the cover (23) and provide power to the first and second audits. supply members (A1, A2), an electrical and mechanical interface including the bottom support (5) and an inner connector (24) connected to the second power supply member (A2) for securing the system to the back of a flat panel of the display screen device (20) and supplying the display screen device (20).

21. Computer system according to one of claims 1 to 20, wherein adaptation means are provided with the video servo software module of the screen (20) for adapting digital data representative of video and / or animations in the format of the display (20) of visualization.

The computer system of one of claims 1 to 21, wherein the mass storage means (30) comprises a hard disk having a cache memory of several megabytes and the motherboard (1) is of the multiple access type. at least one working memory.

23. Display device (2) with numerical control, comprising a flat display screen (20), characterized in that it comprises on the back of the screen (20) the computer system according to one of claims 1 to 22 for control the display of the device (2).