Television wall splicing system and method based on Display Port

Abstract

The invention relates to a television wall splicing system and method based on a Display Port. The system comprises a signal source input module and N splicing control units. The signal source input module is an HDMI signal conversion module and used for converting input DVI/HDMI signals into HDMI signals. Each splicing control unit comprises a DP signal conversion module, an image selecting drive module and a display module, wherein the DP signal conversion module, the image selecting drive module and the display module are sequentially connected. The image selecting drive module of the mth splicing control unit is further connected to the DP signal conversion module of the (m+1)th splicing control unit, and the HDMI signal conversion module is connected to the DP signal conversion module and the image selecting drive module of the first splicing control unit. According to the television wall splicing system and method, the circuit structure is simple, cost is low, popularization is easy, splicing of large liquid crystal television walls is achieved, and good market application prospects are achieved.

Description

technical field [0001] The invention relates to a video wall splicing system and method based on DisplayPort. Background technique [0002] At present, the LCD TV splicing products on the market mainly use DVI, or even VGA and other signals to realize the splicing of the TV wall. Since VGA or DVI will have a relatively large attenuation during signal transmission, after being connected to a certain number of machines in series, the signal will still attenuate. Terrible, the entire picture quality will be affected, and even the system cannot display the picture normally due to the weak signal, which makes it difficult to achieve large-matrix TV wall splicing. [0003] Known technology missing: [0004] 1. For a TV wall composed of analog signals such as VGA, DVI, and Ypbpr, due to the serious attenuation of the analog signal during transmission, the image quality of the TV wall will be affected, and it is not conducive to splicing large-screen TV walls. [0005] 2. The sign...

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Problems solved by technology

[0004] 1. For a TV wall composed of analog signals such as VGA, DVI, Ypbpr, etc., due to the serious attenuation of the analog signal during transmission, the image quality of the TV wall will be affected, and it is not conducive to splicing large-screen TV walls

[0005] 2. The signal serial connection is demanding. For example, if it supports VGA output serial connection, its input signal must be a VGA signal. Similarly, if the DVT or HDMI output is serially connected, the input signal must also be corresponding to DVI or HDMI. The equipment requirements are relatively high, which is not conducive to the choice of end users

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