CN202075967U - Video display device - Google Patents
Video display device Download PDFInfo
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- CN202075967U CN202075967U CN2011201393368U CN201120139336U CN202075967U CN 202075967 U CN202075967 U CN 202075967U CN 2011201393368 U CN2011201393368 U CN 2011201393368U CN 201120139336 U CN201120139336 U CN 201120139336U CN 202075967 U CN202075967 U CN 202075967U
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- interface
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- input
- video display
- microprocessor
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- Liquid Crystal Display Device Control (AREA)
Abstract
The utility model discloses a video display device which comprises a TFT (thin-film transistor) liquid crystal display screen, a circuit board and an input/output signal interface, wherein a microprocessor is arranged on the circuit board, and a liquid crystal screen driving circuit, a layer bitmap OSD (on-screen display) module and a video decoding circuit are built in the microprocessor; the input/output signal interface integrates a power supply interface, a multi-format video interface and a control interface; and the TFT liquid crystal display screen and the input/output signal interface are electrically connected with the circuit board. The microprocessor of the video display device is high in integration degree and an external liquid crystal screen driving module, a video decoding module and the OSD module are not required; furthermore, the video display device has the multi-format video interface and can meet the needs of input of multi-channel videos and multi-format videos.
Description
Technical field
The utility model relates to electronic technology field, relates in particular to a kind of video display devices.
Background technology
Along with popularizing of LCD, TFT(Thin Film Transistor, Thin Film Transistor (TFT)) liquid crystal display is widely used in the consumer electronics product.But existing video display devices is made of a large amount of discrete devices, and the integrated level of micro-control unit MCU is low, needs external video decoding chip, LCD driver module and OSD(on-screen display, the screen menu type regulative mode) module, power consumption is big; And video interface can only insert CVBS(Composite Video Broadcast Signal, composite video broadcast singal), can not satisfy the needs of multi-channel video, multiple format video input.
Summary of the invention
The utility model embodiment provides a kind of video display devices, and the integrated level height of its microprocessor need not plug-in liquid crystal display driver module, video decode module and OSD module; And have the multi-format video interface, can satisfy the needs of multi-channel video, the input of multiple format video.
The video display devices that the utility model embodiment provides comprises TFT LCDs, circuit board and input/output signal interface;
Have microprocessor on the described circuit board, described microprocessor is built-in with liquid crystal display driving circuit, figure layer bitmap OSD module and video decode circuit;
Described input/output signal interface is integrated with power interface, multi-format video interface and control interface;
Described TFT LCDs, input/output signal interface are electrically connected with described circuit board.
Wherein, described multi-format video interface comprises YPbPr interface and CVBS interface; Perhaps, comprise S-Video interface and CVBS interface.Described control interface comprises data signal interfaces and interface clock signal.
The video display devices that the utility model embodiment provides has following beneficial effect:
(1), microprocessor built-in liquid crystal display driver module, video decode module and OSD module, the integrated level height adopts the mode of module conveniently to use and promote, and low in energy consumption;
(2), the input/output signal interface is integrated with power interface, multi-format video interface, control interface, incoming video signal and control signal extremely easily;
(3), adopt the utility model, power supply, vision signal only need be provided and expand the control signal of using, just can be supporting with the various master controls that need video to show easily, alleviated the research and development difficulty, be applicable to that vehicle-carrying DVD, radar for backing car, state display machines, advertisement machine terminal etc. need in the equipment of video demonstration, cost is low.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the video display devices that provides of the utility model.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described.
Referring to Fig. 1, be the structural representation of an embodiment of the video display devices that provides of the utility model.Described video display devices comprises: TFT LCDs, circuit board and input/output signal interface.
Wherein, have microprocessor (MCU) on the circuit board, this microprocessor is built-in with liquid crystal display driving circuit, figure layer bitmap OSD module and video decode circuit.Specific as follows:
Microprocessor MCU is built-in with the liquid crystal display driving circuit, can extremely make things convenient for the TFT LCDs that drives various sizes.This microprocessor MCU has designed complete control TCON(Timer Control Register able to programme, the timer/counter control register), chip can drive 800 * 600 and the TFT LCDs of following resolution, supports the liquid crystal display of TTL6 position (or 8) and MPU interface.
Microprocessor MCU is built-in with figure layer bitmap (bitmap) OSD module, information such as this module can playing pictures, special efficacy, client Logo, menu, can the every working index of display screen (comprising color, pattern, geometric configuration etc.) adjust by menu, thereby reach best user mode.
Microprocessor MCU is built-in with the video decode circuit, can discern various vision signals; Support 480i, 480p, 576i, 576p and the input of 1080i video format; The RGB input supports 640 * 480,800 * 480 and 800 * 600.
The input/output signal interface is integrated with power interface, multi-format video interface and control interface.Specific as follows:
Power interface comprises 5V power input interface and public ground interface.
The multi-format video interface is a kind of video interface of compatibility, comprises YPbPr interface (also claiming the color difference components interface) and CVBS interface; Perhaps, described multi-format video interface comprises S-Video interface (S terminal) and CVBS interface.Preferably, this video interface comprises 1 road YPbPr or 1 road S Video, and 1 road or 3 road CVBS, fully satisfies the needs of multi-channel video, the input of multiple format video.
Video interface is an outer input interface, and outer video signal is input to MCU through behind the impedance matching circuit; MCU has disposed the corresponding video signals pin, is electrically connected with this video interface.
Control interface comprises data signal interfaces (SDA) and interface clock signal (SCL).Concrete, SDA and SCL can be used as the software upgrading interface, also can do common IO mouth, as I
2The C communication interface carries out the real time data exchange with the outside, perhaps as the button input interface.
Described TFT LCDs, input/output signal interface are electrically connected with described circuit board.Concrete, microprocessor MCU has power pins, vision signal pin and control signal pin, respectively with described power interface, the multi-format video interface is corresponding with control interface is connected.And this microprocessor MCU has TFT drive signal pin; Described TFT drive signal pin is electrically connected with described TFT LCDs.
Further, described microprocessor also is built-in with and is used for the external flash memory IIC interface of (Flash Memory is called for short FLASH).The external FLASH of this IIC interface, maximum can expand to 128M bit, fully satisfies the needs of depositing picture.
The video display devices that the utility model embodiment provides, the integrated level height of its microprocessor MCU need not plug-in liquid crystal display driver module, video decode module and OSD module; And the input/output signal interface is integrated with power interface, multi-format video interface and control interface, can extremely make things convenient for incoming video signal and control signal; Adopt the utility model, power supply, vision signal only need be provided and expand the control signal of using, just can be supporting with the various master controls that need video to show easily, alleviated the research and development difficulty, be applicable to that vehicle-carrying DVD, radar for backing car, state display machines, advertisement machine terminal etc. need in the equipment of video demonstration, cost is low.
The above is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also are considered as protection domain of the present utility model.
Claims (7)
1. a video display devices is characterized in that, comprises TFT LCDs, circuit board and input/output signal interface;
Have microprocessor on the described circuit board, described microprocessor is built-in with liquid crystal display driving circuit, figure layer bitmap OSD module and video decode circuit;
Described input/output signal interface is integrated with power interface, multi-format video interface and control interface;
Described TFT LCDs, input/output signal interface are electrically connected with described circuit board.
2. video display devices as claimed in claim 1 is characterized in that, described multi-format video interface comprises YPbPr interface and CVBS interface; Perhaps, described multi-format video interface comprises S-Video interface and CVBS interface.
3. video display devices as claimed in claim 2 is characterized in that described control interface comprises data signal interfaces and interface clock signal.
4. video display devices as claimed in claim 3 is characterized in that, described power interface comprises 5V power input interface and public ground interface.
5. video display devices as claimed in claim 4 is characterized in that, described microprocessor has power pins, vision signal pin and control signal pin, respectively with described power interface, the multi-format video interface is corresponding with control interface is connected.
6. as each described video display devices of claim 1～5, it is characterized in that described microprocessor has TFT drive signal pin; Described TFT drive signal pin is electrically connected with described TFT LCDs.
7. video display devices as claimed in claim 6 is characterized in that, described microprocessor also is built-in with the IIC interface that is used for external flash memory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201393368U CN202075967U (en) | 2011-05-05 | 2011-05-05 | Video display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201393368U CN202075967U (en) | 2011-05-05 | 2011-05-05 | Video display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202075967U true CN202075967U (en) | 2011-12-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201393368U Expired - Fee Related CN202075967U (en) | 2011-05-05 | 2011-05-05 | Video display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202075967U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105225655A (en) * | 2015-10-21 | 2016-01-06 | 深圳市巨潮科技股份有限公司 | A kind of point-to-point display device for mounting on vehicle of non-standard resolution and car-mounted display method |
| CN107770581A (en) * | 2016-08-17 | 2018-03-06 | 重庆长安汽车股份有限公司 | Vehicle mounted multimedia split air conditioner |
| CN109275000A (en) * | 2018-10-24 | 2019-01-25 | 厦门直播星电子科技有限公司 | High-definition network Media Processor |
-
2011
- 2011-05-05 CN CN2011201393368U patent/CN202075967U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105225655A (en) * | 2015-10-21 | 2016-01-06 | 深圳市巨潮科技股份有限公司 | A kind of point-to-point display device for mounting on vehicle of non-standard resolution and car-mounted display method |
| CN107770581A (en) * | 2016-08-17 | 2018-03-06 | 重庆长安汽车股份有限公司 | Vehicle mounted multimedia split air conditioner |
| CN109275000A (en) * | 2018-10-24 | 2019-01-25 | 厦门直播星电子科技有限公司 | High-definition network Media Processor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111214 Termination date: 20170505 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |