Testing method for MIPI (Mobile Industry Processor Interface) full high definition liquid crystal display

A test method and liquid crystal screen technology, applied in the direction of nonlinear optics, instruments, optics, etc., can solve the problems that are difficult to meet the full high-definition liquid crystal screen test, and achieve the effect of simple, convenient and fast test, compact and precise design, and low energy consumption

Active Publication Date: 2013-09-25
广东金龙机电有限公司
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AI Technical Summary

Problems solved by technology

However, those skilled in the art know that the method using the S3C2440 chip and the SSD2805 chip can well meet the test of high-definition LCD screens (the highest supported resolution is QHD resolution (540×960), but it is difficult to meet the current mainstream full-HD LCD screen test requirements. (Resolution 1920×1080) Test

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  • Testing method for MIPI (Mobile Industry Processor Interface) full high definition liquid crystal display
  • Testing method for MIPI (Mobile Industry Processor Interface) full high definition liquid crystal display

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Embodiment Construction

[0029] In order to further illustrate the technical means adopted by the present invention and its effects, the following describes in detail in conjunction with preferred embodiments of the present invention and accompanying drawings.

[0030] see figure 1 and figure 2 , the present invention provides a kind of testing method of MIPI interface full high-definition liquid crystal screen, comprises the following steps:

[0031] Step 1, provide full high-definition liquid crystal screen test fixture, this full high-definition liquid crystal screen test fixture 20 comprises: test module 22, the backlight source drive module 24 that is electrically connected with this test module 22, and with this test module 22 electrical properties Connected MIPI module 26, the test module 22 includes a microprocessor 222 and a storage module 224 electrically connected to the microprocessor 222, the storage module 224 is pre-programmed with a test program, and the MIPI module 26 includes a liq...

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Abstract

The invention provides a testing method for an MIPI full high definition liquid crystal display. The testing method for the MIPI full high definition liquid crystal display comprises: step 1, a full high definition liquid crystal display test fixture applying an EP2C5Q208C8N chip and an SSD2826 chip is provided, wherein the test fixture comprises a testing module and an MIPI module; step 2, a liquid crystal display to be tested is electrically connected with a backlight driving module and the MIPI module; step 3, a power supply is powered on, a microprocessor detects the backlight driving module, a liquid crystal driving module and a signal conversion module; step 4, if any abnormity is detected, an alarm for prompting is issued, if no abnormity is detected, initialization is performed on the modules; step 5, the liquid crystal driving module initializes the liquid crystal display to be tested; step 6, the signal conversion module converts RGB (red, green and blue) signals transmitted by the microprocessor into MIPI signals and transmits the MIPI signals to the liquid crystal display to be tested, and the liquid crystal display to be tested displays a corresponding image; step 7, whether the liquid crystal display to be tested is qualified or not is judged according to the image.

Description

technical field [0001] The invention relates to a method for testing a liquid crystal screen, in particular to a method for testing a full high-definition liquid crystal screen with a MIPI interface. Background technique [0002] Liquid crystal display is a flat and ultra-thin display device, which is composed of a certain number of color or black and white pixels, placed in front of the light source or reflective surface. Liquid crystal displays are favored by engineers for their thinness, low power consumption, and wide application. Moreover, the development of LCD screens today is dominated by full HD LCD screens. [0003] The most commonly used connection modes for existing small and medium-sized LCD screens are generally MCU mode and RGB mode. The MCU mode is easy to control and does not require clock and synchronization signals, but it consumes GRAM and is difficult to achieve a large screen. It is often used to display still images; RGB mode does not require GRAM, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13G09G3/36
Inventor 成小定
Owner 广东金龙机电有限公司
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