Method for switching four-LINK LVDS video signals into MIPI video signals

Abstract

The invention discloses a method for switching four-LINK LVDS video signals into MIPI video signals. The method comprises the steps of respectively receiving and demodulating video signals of each link of four-LINK LVDS video signals so as to generate parallel demodulation data of four links and an LVDS pixel clock; conducting video decoding on the parallel demodulation data of the four links to generate LVDS video source signals of the four links, and switching the LVDS pixel clock into an LVDS video source pixel clock, wherein the LVDS video source signals of each link comprise LVDS video source data and LVDS video source synchronous signals; using the LVDS video source pixel clock to sample and cache the LVDS video source signals of the four links at the same time, and switching the LVDS video source signals into RGB video signals; switching the RGB video signals into MIPI video signals. The method has the advantages of being simple in operation, high in detection efficiency, and low in cost.

Description

technical field [0001] The invention relates to the field of display and testing of liquid crystal modules, in particular to a method for converting a four-link LVDS video signal into a MIPI video signal. 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 dedicated liquid crystal module testing device and input them to the liquid crystal module for display. Strict and comprehensive testing of its display effect. The display interface and internal d...

AI Technical Summary

Problems solved by technology

[0004] However, the testing device of MIPI LCD module needs to output the same MIPI test signal, but the existing common LCD module testing device does not have this function, and the common LCD module continues to be produced, and its testing device has not yet entered the replacement cycle will continue to use

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

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