Device and method for adjusting brightness of liquid crystal module
A liquid crystal module, brightness adjustment technology, applied in the direction of cathode ray tube indicators, instruments, static indicators, etc., can solve the problems of few adjustment levels, failure to meet test requirements, rough brightness output, etc., to achieve high accuracy, The effect of fine adjustment of brightness
Active Publication Date: 2017-08-11
WUHAN JINGCE ELECTRONICS GRP CO LTD
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Problems solved by technology
The brightness adjustment range of the brightness adjustment device of the liquid crystal module is only divided into equal parts, and can only do rough brightness output, cannot achieve precise subdivision, and cannot meet the test requirements
Such as liquid crystal display, it can only draw R, G, B (red, green and blue) grayscale images by manually controlling the drawing software, and then increase or decrease the brightness by adjusting the brightness buttons "+" and "-". Coarse adjustment of the brightness of the LCD module. This adjustment method has fewer adjustment levels and cannot output accurate brightness values.
At present, there is no device on the market for precise adjustment of the brightness value of the liquid crystal module, which cannot achieve accurate subdivision and cannot meet the test requirements.
Method used
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[0018] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
[0019] Such as figure 1 The shown LCD module brightness adjustment device includes a host computer 1, a central processing module 4, a signal output and processing module 5, a memory 6, a liquid crystal module power supply module 7 to be tested, and a brightness testing device 9, wherein the host computer The test instruction communication end of 1 is connected to the test instruction communication end of central processing module 4, the test signal communication end of said central processing module 4 is connected to the signal output and the test signal communication end of processing module 5, and the stored data of said central processing module 4 The communication end is connected to the memory 6, the power control signal output end of the central processing module 4 is connected to the control end of the liquid crystal module power supply ...
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The invention discloses a liquid crystal module brightness adjustment device, the test instruction communication end of the upper computer is connected to the test instruction communication end of the central processing module, the test signal communication end of the central processing module is connected to the signal output and the test signal communication of the processing module The storage data communication terminal of the central processing module is connected to the memory, the power control signal output terminal of the central processing module is connected to the control terminal of the power module of the liquid crystal module to be tested, and the brightness information communication terminal of the liquid crystal module of the upper computer is connected to the LCD of the brightness test device. The brightness information communication terminal of the module and the power supply signal output terminal of the power supply module of the liquid crystal module to be tested are used to connect the power supply terminal of the liquid crystal module to be tested. The invention can accurately output the brightness required by the user on the liquid crystal module to be tested.
Description
technical field [0001] The invention relates to the technical field of liquid crystal module testing, in particular to a device and method for adjusting brightness of a liquid crystal module. Background technique [0002] Currently. The brightness adjustment range of the brightness adjustment device of the liquid crystal module is only divided into equal parts, and can only do rough brightness output, cannot achieve precise subdivision, and cannot meet the test requirements. Such as liquid crystal display, it can only draw R, G, B (red, green and blue) grayscale images by manually controlling the drawing software, and then increase or decrease the brightness by adjusting the brightness buttons "+" and "-". Coarse adjustment of the brightness of the liquid crystal module, this adjustment method has fewer adjustment levels, and cannot output accurate brightness values. At present, there is no device on the market to precisely adjust the brightness value of the liquid crystal...
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IPC IPC(8): G09G5/10G09G3/36
Inventor 彭骞田方力梁红军秦明沈亚非陈凯
Owner WUHAN JINGCE ELECTRONICS GRP CO LTD