Method for converting single-LINK LVDS video signal into MIPI video signal

A technology for video signal and video conversion, applied in the direction of standard conversion, etc., can solve the problem of lack of availability, and achieve the effect of stable work, improved detection efficiency, and simple operation.

Active Publication Date: 2014-01-01
WUHAN JINGLI ELECTRONICS TECH
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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 replacemen

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  • Method for converting single-LINK LVDS video signal into MIPI video signal
  • Method for converting single-LINK LVDS video signal into MIPI video signal
  • Method for converting single-LINK LVDS video signal into MIPI video signal

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Embodiment Construction

[0038] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0039] Such as Figure 1 to Figure 5 Shown, the LVDS video signal of a kind of single LINK of the present invention is converted into MIPI video signal method, comprises the following steps:

[0040] Single LINK LVDS video signal includes LVDS receiving clock and LVDS data, LVDS data is transmitted by LVDS data bus, LVDS data bus includes several signal lines, each signal line transmits serial coded signal; MIPI video signal is used for 4LANE type MIPI display module.

[0041] LVDS video signal refers to the general term for signals characterized by LVDS electrical characteristics, and has a combination of serialized signals with different video pixel color scales, signal transmission coding standards, and signal transmission link methods. The characteristics of the single LINK LVDS video signal to be received include: the color sca...

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Abstract

The invention discloses a method for converting a single-LINK LVDS video signal into an MIPI video signal. The method includes the steps that step1, reception and demodulation are carried out on the single-LINK LVDS video signal to generate LVDS parallel demodulation data and an LVDS pixel clock; step 2, video decoding is carried out on the parallel demodulation data to generate LVDS video source data and an LVDS video source synchronizing signal, and the LVDS pixel clock is converted into an LVDS video source pixel clock; step 3, sampling and caching are carried out on the LVDS video source signal through the LVDS video source pixel clock, the LVDS video source signal is converted into an RGB video signal, wherein the process that the LVDS video source signal is converted into the RGB video signal includes the steps that an RGB video clock is generated, so that the frequency of the RGB video clock is same as that of the LVDS video source pixel clock; a signal is read from a caching area through the RGB video clock, and RGB video source data and an RGB video synchronizing signal are separated and respectively output in sequence, so that the RGB video source data , the RGB video synchronizing signal and the RGB video clock form the RGB video signal together; step 4, the RGB video signal is converted into the MIPI video signal.

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 single 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...

Claims

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Application Information

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IPC IPC(8): H04N7/01
Inventor 彭骞朱亚凡陈凯沈亚非邓标华
Owner WUHAN JINGLI ELECTRONICS TECH
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