Method for converting LVDS video signals into 8 LANE horizontally-split-screen MIPI video signals

Abstract

The invention discloses a method for converting LVDS video signals into 8 LANE horizontally-split-screen MIPI video signals. The method comprises the steps of 1 respectively and simultaneously receiving and demodulating each link of the LVDS video signals to produce parallel demodulation data and LVDS pixel clocks of four links; 2 performing video decoding to the parallel demodulation data of the four links to generate LVDS video source data and LVDS video source synchronizing signals of the four link; 3 generating RGB video clocks, detecting LVDS video line resolution ratio values, using LVDS video source pixel clocks to divide all of lines of LVDS video signals into front-half-line parallel data and rear-half-line parallel data according to the LVDS video line resolution ratio values, using the RGB video clocks to simultaneously read the front-half-line parallel data, the rear-half-line parallel data and the synchronizing signals and respectively converting the data and the signals into left-half-screen RGB video signals and right-half-screen RGB video signals; 4 simultaneously converting the left-half-screen RGB video signals and the right-half-screen RGB video signals into left-channel MIPI video signals and right-channel MIPI video signals.

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 LVDS video signals into 8LANE left and right split-screen MIPI video signals. 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 in...

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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