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FPGA-based LED display control system

A technology of LED display screen and control system, applied in the parts of TV system, static indicator, parts of color TV, etc., can solve the problem of unusable, TV can't work 7x24 hours continuously for a long time, and the controller is expensive. and other problems to achieve the effect of ensuring stability

Inactive Publication Date: 2016-01-13
SHANGHAI LINBELL ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If this kind of function is completed through the TV and the controller, one is that the seam of the TV is very wide, which affects the visual effect, and the TV cannot work continuously for 7x24 hours for a long time, and needs to be turned off for several hours a day, otherwise the service life of the TV It will be greatly discounted, and the screen will turn yellow or even unusable within half a year.
In addition, the cost of the controller is relatively expensive

Method used

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Examples

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Comparison scheme
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Embodiment Construction

[0012] In order to make the objects and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0013] A kind of LED display screen control system based on FPGA of this concrete implementation, described control system comprises FPGA chip, SDI interface, high-speed Serdes, DDR controller and 3D digital comb filter, described FPGAIO pin is DDR mode, described The control system uses the DSP module in the FPGA to realize high-speed multiplication and zoom filtering algorithm, and realizes frame rate conversion through the read and write control of DDRmemory.

[0014] The control system adopts 3D digital comb filter technology to separate bright colors from video input signals to eliminate crosstalk of bright colors; uses motion adaptive de-i...

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PUM

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Abstract

The invention discloses an FPGA-based LED display control system which supports an SDI input interface. VGA, DVI, HDMI, VIDEO can be looped out by hardware. Screen control can be achieved through drag operation by control software installed on a PC and can be displayed in front of users in the form of 'what you see is what you get'. Four channels of 1920*1080p signals can be input at the same time, exchange of big data can be conducted, and the stability of image display is ensured. Any four inputs can be selected in an input interface for image display, and the type of input ports is unrestricted. The images of four layers can be scaled infinitely without being affected by the physical seam of the screen. The picture can be of full high definition, and the image can adapt automatically and is applicable to common resolutions. The system can at most support a 3G-SDI, and is compatible with an HD-SDI.

Description

technical field [0001] The invention relates to an FPGA-based LED display screen control system. Background technique [0002] For video surveillance users in the LCD splicing wall, they need to display multiple video surveillance signals on the same screen, that is, on the real splicing wall, as many signals as possible can be displayed so that they can observe and monitor each surveillance head. If this kind of function is completed through the TV and the controller, one is that the seam of the TV is very wide, which affects the visual effect, and the TV cannot work continuously for 7x24 hours for a long time, and needs to be turned off for several hours a day, otherwise the service life of the TV It will be greatly discounted, and the screen will turn yellow or even become unusable within half a year. In addition, the price and cost of the controller are relatively expensive. The industrial-grade liquid crystal display unit is specially designed for long-term contact us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/01H04N5/262G09G3/32
Inventor 张野翎
Owner SHANGHAI LINBELL ELECTRONICS TECH