CN202422676U - LED (Light-Emitting Diode) display system and LED video controller thereof - Google Patents
LED (Light-Emitting Diode) display system and LED video controller thereof Download PDFInfo
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- CN202422676U CN202422676U CN2011205592106U CN201120559210U CN202422676U CN 202422676 U CN202422676 U CN 202422676U CN 2011205592106 U CN2011205592106 U CN 2011205592106U CN 201120559210 U CN201120559210 U CN 201120559210U CN 202422676 U CN202422676 U CN 202422676U
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Abstract
The utility model discloses an LED (Light-Emitting Diode) display system and an LED video controller thereof. The LED video controller comprises a main control unit, a storage unit, a network interface unit, a DP (Data Processing) interface unit and a DP decoding unit; the storage unit and the network interface unit are connected with the main control unit; and the DP interface unit is connected with the main control unit through the DP decoding unit. The LED display system comprises a DP interface and a video source information terminal, and is connected with the DP interface unit of the LED video controller through the DP interface. With the adoption of the technical scheme provided by the utility model, the LED display system of the LED video controller can be directly connected with the video source information terminal with the DP interface by arranging the DP interface unit and the DP decoding unit in the LED video controller, so that the cost pressure caused by using a video image processor to convert in the prior art can be solved. Furthermore, the LED display system of the LED video controller can express the advantages of DP signals, so as to achieve better display and sound effects.
Description
Technical field
The utility model relates to LED display technique field, is specifically related to a kind of LED display system and LED Video Controller thereof.
Background technology
Present LED display system, generally as shown in Figure 1, comprising: control terminal (be generally personal computer, personal computer, PC), LED Video Controller, video source information terminal and LED display.LED display generally includes several led display units, and has a video reception card in each display unit.Video source information terminal and control terminal, the video reception card connection in the led display unit that all is connected with LED display through Video Controller, and the video reception card connection of this video reception card and other led display unit.
The existing video signal interface type roughly has DVI interface (Digital Visual Interface; Digital visual interface), HDMI interface (High Definition Multimedia Interface, HDMI), DP (Display Port) interface etc.DVI interface wherein is merely able to transmission video signal, and its bandwidth is merely 4.95Gb/s.The HDMI interface can transmission video signal, again can transmitting audio signal, and HDMI 1.3 can support the bandwidth of 10.2Gb/s, support the rgb video signal input of the highest 12bit.And the DP interface can provide the bandwidth up to 10.8Gb/s, and the same cable transmission of audio & video signal common that also allows with HDMI, support multiple high-quality digital audio signal, thereby the DP interface is a kind of more outstanding video signal interface.
Present LED display system, its LED Video Controller only has DVI interface or HDMI interface.If need to connect the video source information terminal with DP interface, existing way is between video source terminal and LED Video Controller, to increase a video image processor, exports to the LED Video Controller after transferring the DP signal to DVI signal or HDMI signal.And several thousand yuan at least of video image processors, at most several ten thousand even hundreds of thousands unit, can increase the cost of LED display system so greatly.But what is more important, this kind method can't be brought into play the advantage of DP interface, thereby only is makeshift, will be eliminated in the near future.
Summary of the invention
One of the utility model technical matters to be solved provides a kind of LED Video Controller, and it can directly be connected with the video source information terminal with DP interface.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of LED Video Controller comprises: main control unit, storage unit, NIU, and DP interface unit and DP decoding unit; Said storage unit all is connected with main control unit with NIU; Said DP interface unit is connected with main control unit through the DP decoding unit.
In the optimized technical scheme, said LED Video Controller also comprises the serial ports unit, and said serial ports unit is connected with main control unit.
In the optimized technical scheme, said LED Video Controller also comprises the DVI interface unit, and the DVI decoding unit; Said DVI interface unit is connected with main control unit through said DVI decoding unit.
In the optimized technical scheme, said LED Video Controller also comprises the HDMI interface unit, and the HDMI decoding unit; Said HDMI interface unit is connected with main control unit through the HDMI decoding unit.
In the optimized technical scheme, said LED Video Controller also comprises DVI interface unit, HDMI interface unit, and the DVI/HDMI decoding unit; Said DVI interface unit and HDMI interface unit all are connected with main control unit through the DVI/HDMI decoding unit.
In the optimized technical scheme, said storage unit is DDR2 SDRAM unit.
In the optimized technical scheme, said main control unit is FPGA (Field-Programmable Gate Array, i.e. a field programmable gate array).
Two of the utility model technical matters to be solved provides a kind of LED display system, and it can support the video source information terminal of DP interface with lower cost.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of LED display system comprises video source information terminal and LED Video Controller, and said LED Video Controller is aforesaid LED Video Controller; Said video source information terminal has the DP interface, and is connected with the DP interface unit of said LED Video Controller through said DP interface.
The beneficial effect of the utility model is:
Owing in the LED Video Controller, be provided with DP interface unit and DP decoding unit, thereby can directly connect video source information terminal, solved prior art and adopted video image processor to change the cost pressure that is brought with DP interface; And key is the advantage that can bring into play the DP signal, obtains better to show and acoustics.
Below in conjunction with accompanying drawing the utility model is done further to describe in detail.
Description of drawings
Fig. 1 is the block diagram of system of existing LED display system;
Fig. 2 is the schematic block circuit diagram of LED Video Controller in the utility model embodiment.
Embodiment
A kind of LED display system that this embodiment provides, the difference of itself and existing LED display system is LED Video Controller and video source information terminal.Video source information terminal in this embodiment has the DP interface that can export the DP signal.And a kind of LED Video Controller in this embodiment comprises: main control unit, storage unit, NIU, and DP interface unit and DP decoding unit; Said storage unit all is connected with main control unit with NIU; Said DP interface unit is connected with main control unit through the DP decoding unit.
The LED display system of this embodiment; Owing in the LED Video Controller, be provided with DP interface unit and DP decoding unit; Thereby can directly connect video source information terminal with DP interface, solve prior art and adopted video image processor to change the cost pressure that is brought; And key is the advantage that can bring into play the DP signal, obtains better to show and acoustics.
In the optimized technical scheme, said LED Video Controller also comprises the serial ports unit, and said serial ports unit is connected with main control unit.
In the optimized technical scheme, said LED Video Controller also comprises the DVI interface unit, and the DVI decoding unit; Said DVI interface unit is connected with main control unit through said DVI decoding unit.
In the optimized technical scheme, said LED Video Controller also comprises the HDMI interface unit, and the HDMI decoding unit; Said HDMI interface unit is connected with main control unit through the HDMI decoding unit.
In the optimized technical scheme, said LED Video Controller also comprises DVI interface unit, HDMI interface unit, and the DVI/HDMI decoding unit; Said DVI interface unit and HDMI interface unit all are connected with main control unit through the DVI/HDMI decoding unit.
In the optimized technical scheme, said storage unit is DDR2 SDRAM unit (Double-Data-Rate Two Synchronous Dynamic Random Access Memory, a second generation double data rate Synchronous Dynamic Random Access Memory).
In the optimized technical scheme, said main control unit is FPGA.
Wherein audio, video data enters into the DP decoding chip through the DP interface, and decoded data send FPGA to.DVI, HDMI signal enter into the DVI/HDMI decoding chip through DVI or HDMI interface, and decoded data send FPGA to.FPGA is according to the data type of user's selection of configuration reception.In order to make the system can compatible 8bit, 10bit, the rgb video data input of 12bit is written to DDR2 after at first the video data of input being converted into 16bit.The video data of reading from DDR2 sends through network chip through FPGA group bag back.The voice data that receives simultaneously also sends through network chip through FPGA group bag back.Video data sends the back by the video reception card receiver through network, and is forwarded to each video reception card step by step, on LED display, shows simultaneously.
Voice data sends the back by the video reception card receiver through network, and exports to stereo set etc.
When the input video data was 12bit, the data that write the RGB [15:0] of DDR2 then were:
When the input video data was 10bit, the data that write the RGB [15:0] of DDR2 then were:
When the input video data was 8bit, the data that write the RGB [15:0] of DDR2 then were:
Above content is the further explain that combines concrete preferred implementation that the utility model is done, and can not assert that the practical implementation of the utility model is confined to these explanations.For the those of ordinary skill of technical field under the utility model, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be regarded as belonging to the protection domain of the utility model.
Claims (8)
1. a LED Video Controller comprises: main control unit, storage unit, NIU; Said storage unit all is connected with main control unit with NIU, it is characterized in that, said LED Video Controller also comprises DP interface unit and DP decoding unit; Said DP interface unit is connected with main control unit through the DP decoding unit.
2. a kind of LED Video Controller as claimed in claim 1 is characterized in that said LED Video Controller also comprises the serial ports unit, and said serial ports unit is connected with main control unit.
3. a kind of LED Video Controller as claimed in claim 1 is characterized in that said LED Video Controller also comprises the DVI interface unit, and the DVI decoding unit; Said DVI interface unit is connected with main control unit through said DVI decoding unit.
4. a kind of LED Video Controller as claimed in claim 1 is characterized in that said LED Video Controller also comprises the HDMI interface unit, and the HDMI decoding unit; Said HDMI interface unit is connected with main control unit through the HDMI decoding unit.
5. a kind of LED Video Controller as claimed in claim 1 is characterized in that said LED Video Controller also comprises DVI interface unit, HDMI interface unit, and the DVI/HDMI decoding unit; Said DVI interface unit and HDMI interface unit all are connected with main control unit through the DVI/HDMI decoding unit.
6. like any described a kind of LED Video Controller in the claim 1 to 5, it is characterized in that said storage unit is DDR2 SDRAM unit.
7. like any described a kind of LED Video Controller in the claim 1 to 5, it is characterized in that said main control unit is FPGA.
8. a LED display system comprises video source information terminal and LED Video Controller, it is characterized in that, said LED Video Controller is any described LED Video Controller in the claim 1 to 7; Said video source information terminal has the DP interface, and is connected with the DP interface unit of said LED Video Controller through said DP interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205592106U CN202422676U (en) | 2011-12-28 | 2011-12-28 | LED (Light-Emitting Diode) display system and LED video controller thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205592106U CN202422676U (en) | 2011-12-28 | 2011-12-28 | LED (Light-Emitting Diode) display system and LED video controller thereof |
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| Publication Number | Publication Date |
|---|---|
| CN202422676U true CN202422676U (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205592106U Expired - Fee Related CN202422676U (en) | 2011-12-28 | 2011-12-28 | LED (Light-Emitting Diode) display system and LED video controller thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103260028A (en) * | 2013-04-12 | 2013-08-21 | 索拓(青岛)显示设备有限公司 | Projector video decoding circuit and projector |
-
2011
- 2011-12-28 CN CN2011205592106U patent/CN202422676U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103260028A (en) * | 2013-04-12 | 2013-08-21 | 索拓(青岛)显示设备有限公司 | Projector video decoding circuit and projector |
| CN103260028B (en) * | 2013-04-12 | 2016-01-20 | 索拓(青岛)显示设备有限公司 | For video decoding circuit and the projecting apparatus of projecting apparatus |
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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: 20120905 Termination date: 20171228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |