System and method for acquiring chromatic values of liquid crystal modules

Abstract

The invention discloses a system and a method for acquiring chromatic values of liquid crystal modules. The system comprises a plurality of self-correction chromometers and a spectrometer. The self-correction chromometers are arranged in a display assembly line working region, and the spectrometer is arranged in a display sample monitoring region; the self-correction chromometers are used for self-correcting chromatic values according to spectral radiation curves and correction parameters which are transmitted by a PC (personal computer), acquiring spectral data of corresponding displays on assembly line stations after the chromatic values are self-corrected and transmitting the spectra data to the PC; the spectrometer is used for acquiring spectral radiation curves of displays in the display sample monitoring region; the PC is used for computing the corresponding correction parameters for each self-correction chromometer and then receiving the spectral data, which are acquired by theself-correction chromometers after the chromatic values are self-corrected, of the corresponding displays on the assembly line stations. The system and the method have the advantages that large-scalearray application of chromometers can be improved in a low-cost manner, the requirements of assembly lines in the multiple aspects of speeds, precision and costs can be met, and the system and the method are quite suitable to be used for factory large-scale production.

Description

technical field [0001] The invention relates to the technical field of liquid crystal module chromaticity correction, in particular to a liquid crystal module chromaticity value acquisition system and method. Background technique [0002] Liquid crystal module manufacturers use spectrometers or colorimeters to correct the chromaticity value of the display module. Spectrometer colorimeters generally have the advantages of slow speed but high precision. Tri-stimulus value colorimeters have the advantages of fast speed and low cost. But its accuracy is worse than spectrometer. Due to the process differences among filters, tristimulus value colorimeters generally have individual differences in accuracy. In actual use, it is necessary to perform corrections for different screens and generate correction parameters corresponding to each type of screen. For example, ca310 contains 99 channels, and each channel can store the parameters of a type of screen. On the display assembly l...

AI Technical Summary

Problems solved by technology

On the display assembly line, the colorimeter at each station needs to correct the parameters of the display being produced, which is time-consuming and laborious

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