Apparatus for automatically adjusting gamma curve of LCD, and optical debugging apparatus

Abstract

Provided is a device for adjusting a gamma curve of a display module. The device comprises: an analysing and fitting module (102) used for comparing and fitting gamma data actually measured by the display module with a standard gamma curve, so as to generate a set of new gamma data within a standard error; a program programmer (210) used for writing the new fitted gamma data into the display module; an optical collection device (207) used for collecting a brightness and a chrominance value of the display module driven by different grey-scale signals, and providing the brightness and chrominance values to the analysing and fitting module (102); and a signal generator (208) used for providing different grey-scale signals varying over time to the display module, and providing the different grey-scale signals to the analysing and fitting module (102). Also provided is an optical debugging device for the ray generation of the display module, which comprises the device for adjusting the gamma curve of the display module.

Description

technical field [0001] The invention relates to a liquid crystal display (LCD) gamma (Gamma) value adjustment technology, in particular to a device for automatically adjusting the Gamma curve of an LCD module and an optical debugging device for an LCD module production line. Background technique [0002] At present, the technology of gamma value adjustment only stays in the adjustment of the calculation method of the gamma curve and the three primary colors (RGB) correction reference voltage, and does not involve the technology of adding automatic gamma value correction to the testing process. [0003] Such as figure 1 As shown, the existing debugging device includes an optical collection device 101, a computing device 102, a cache device 103, and a display device 104, wherein the optical collection device 101 is used to collect brightness and chromaticity values ​​under the gray scale; the computing device 102 is used to Calculate the collected luminance and chromaticity v...

AI Technical Summary

Problems solved by technology

This solution does not involve adding the automatic correction technology of Gamma value in the test process of LCD module. If the automatic correction of Gamma value can be performed for each LCD module in the test process of LCD module, it can improve the LCD module. Improve production capacity and efficiency while displaying effects, therefore, there is an urgent need for a solution for automatic correction of Gamma values

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