Method and system for converting LVDS video signals to 4LANE DP video signals

Abstract

The invention discloses a method for converting LVDS video signals to 4LANE DP video signals, comprising steps of receiving and demodulating LVD video signals, generating LVDS parallel demodulation data and an LVDS pixel clock, performing video decoding on the LVDS parallel demodulation data according to LVDS video decoding control signals to generate LVDS video source data and LVDS video source synchronization signals, converting the LVDS video source data and LVDS video source synchronization signals to RGB video signals according to the LVDS video conversion control signals, performing corresponding frequency doubling operation on the LVDS pixel clock to generate the corresponding RGB video pixel clock, and converting the RGB video signals to DP video signals after a DP video conversion startup order is received. The invention can perform detection on the LVDS video signal quality and image data accuracy, and is high in reliability, null in misjudgment, simple in operation, high in detection efficiency and low in cost.

Description

technical field [0001] The invention relates to the generation of DP video signals, specifically a method and system for converting LVDS video signals into 4LANE DP video signals, and belongs to the field of display and testing of liquid crystal modules. Background technique [0002] Liquid crystal display module (Liquid Crystal Display Module, hereinafter referred to as liquid crystal module) is a key component for liquid crystal display equipment to display normally. It is composed of liquid crystal screen, backlight original, display processing chip and circuit. The structure of the liquid crystal module is precise, the manufacturing process is complicated, and the production process requires high requirements. In order to ensure the yield rate during production, it is necessary to generate various test video signals through a special liquid crystal module test device and input them to the liquid crystal module for display, so as to perform strict and comprehensive testing...

AI Technical Summary

Problems solved by technology

[0004] However, the testing device of DP liquid crystal module needs to output the same DP test signal, but the existing common liquid crystal module testing device does not have this function, and the common liquid crystal module is still in production, and its testing device has not yet been replaced. cycle will continue to use

Although module manufacturers also produce DP LCD modules, in order to protect investment and reduce production costs, it is impossible to eliminate existing equipment and re-purchase expensive DP module-specific test devices in large quantities.

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