Method for converting double-LINK LVDS video signals into MIPI video signals

A video signal, video conversion technology, applied in the direction of standard conversion, instruments, static indicators, etc., can solve the problem of not having, achieve stable work, avoid complex design, and achieve easy results

Active Publication Date: 2013-12-25
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 double-LINK LVDS video signals into MIPI video signals
  • Method for converting double-LINK LVDS video signals into MIPI video signals
  • Method for converting double-LINK LVDS video signals into MIPI video signals

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Embodiment Construction

[0039] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0040] Such as Figure 1 to Figure 5 Shown, the LVDS video signal of a kind of double LINK of the present invention is converted into MIPI video signal method, comprises the following steps:

[0041] The LVDS video signal of dual LINK includes two links of LINK1 and LINK2, which respectively transmit the odd and even pixel data of the LVDS video signal of dual LINK. The LVDS video signal of each link includes LVDS receiving clock and LVDS data, and LVDS consists of LVDS data Bus transmission, the LVDS data bus includes several signal lines, each signal line transmits serial coded signals; MIPI video signals are used for 4LANE type MIPI display modules.

[0042] 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 pix...

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Abstract

The invention discloses a method for converting double-LINK LVDS video signals into MIPI video signals. The method includes the following steps that first, video signals of all links of the double-LINK LVDS video signals are respectively received and demodulated at the same time, and parallel demodulation data of two links and a LVDS pixel clock are generated; second, video decoding is conducted on the parallel demodulation data of the two links to generate LVDS video source signals of the two links, the LVDS video source signals of each link comprise LVDS video source data and LVDS video source synchronizing signals, and the LVDS pixel clock is converted into an LVDS video source pixel clock; third, sampling and caching are simultaneously carried out on the LVDS video source signals of the two links by the LVDS video source pixel clock, and the LVDS video source signals are converted into RGB video signals; fourth, the RGB video signals are converted into the MIPI video signals. The method for converting the double-LINK LVDS video signals into the MIPI video signals has the advantages of being simple to operate, 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 dual-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...

Claims

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Application Information

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IPC IPC(8): H04N7/01G09G3/00
Inventor 彭骞朱亚凡陈凯沈亚非邓标华
Owner WUHAN JINGLI ELECTRONICS TECH
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