Method and system for adjusting optical uniformity of liquid crystal modules

Abstract

The invention discloses a method for adjusting the optical uniformity of liquid crystal modules. The liquid crystal modules comprise LED light source matrixes, optical films and liquid crystal display screens. The LED light source matrixes face the optical films; each liquid crystal display screen is arranged on the side, which is deviated from the corresponding LED light source matrix, of the corresponding optical film; and a light emergent side is arranged on the side, which is deviated from the corresponding LED light source matrix, of each optical film. The method for adjusting the optical uniformity of the liquid crystal modules includes steps of acquiring brightness values of each surface light source region of each optical film; determining first brightness compensation coefficients of each LED light source according to the brightness values of the corresponding surface light source region; adjusting the brightness of each surface light source region on the corresponding optical film according to the first brightness compensation coefficients of the corresponding LED light source so as to balance the optical uniformity of the liquid crystal modules. The invention further provides a system for adjusting the optical uniformity of the liquid crystal modules. According to the technical scheme, the method and the system have effect of improving optical uniformity of liquid crystal display screens.

Description

technical field [0001] The invention relates to the technical field of liquid crystal modules, in particular to a liquid crystal module optical uniformity adjustment method and a liquid crystal module optical uniformity adjustment system. Background technique [0002] The LCD module is the display part of the LCD TV. In the prior art, the liquid crystal module is composed of an LED light source assembly, an optical diaphragm and a Liquid Crystal Display (LCD), and each LED light source passes through the optical diaphragm to form a surface light source corresponding to the pixel plane of the liquid crystal display. , due to the difference of the LED light source and the assembly error of the optical film, as well as the influence of many discrete factors such as the optical parameters of the LED light source (such as light intensity or light type), the position of the LED, and the light guide characteristics of the optical film, etc., resulting in There are differences in l...

AI Technical Summary

Problems solved by technology

In the prior art, the liquid crystal module is composed of an LED light source assembly, an optical film and a Liquid Crystal Display (LCD), and each LED light source passes through the optical film to form a surface light source corresponding to the pixel plane of the liquid crystal display. , due to the variance of the LED light source and the assembly error of the optical film, as well as the influence of many discrete factors such as the optical parameters of the LED light source (such as light intensity or light type), the position of the LED, and the light guide characteristics of the optical film, etc., resulting in There are differences in light intensity between surface light sources incident on different areas of the LCD surface

[0003] The disadvantage of the above technical solution is that the optical uniformity of the liquid crystal display is not good

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