OLED display screen Gamma adjustment method and related device

Abstract

The embodiment of the invention discloses an OLED (Organic light-emitting Diode) display screen Gamma adjustment method and a related device, which are used for reducing the adjustment time of an OLED display screen and improving the efficiency and success rate of Gamma adjustment. The method provided by the embodiment of the invention comprises the steps of obtaining proportional integral; obtaining a gray-scale picture set of the OLED display screen, and selecting a gray-scale picture from the gray-scale picture set; collecting a brightness and chrominance target coordinate and a brightness and chrominance actual measurement coordinate of the gray scale picture; respectively converting the brightness and chrominance target coordinates and the brightness and chrominance actual measurement coordinates into a red, green and blue brightness target value and a red, green and blue brightness actual measurement value under a three-primary-color coordinate system; calculating an error value according to the red-green-blue brightness target value and the red-green-blue brightness measured value; judging whether the error value is smaller than a preset threshold value; if not, updating the parameters in the register corresponding to the gray scale picture according to the proportional integral, and performing judgment again; and if yes, re-selecting one gray-scale picture from the gray-scale picture set for adjustment until all the gray-scale pictures in the gray-scale picture set are adjusted.

Description

technical field [0001] The embodiments of the present application relate to the field of OLED display screens, and in particular to a method for adjusting Gamma of an OLED display screen and a related device. Background technique [0002] Due to its advantages such as self-illumination, power saving, no viewing angle limitation, good low temperature performance, and the ability to be made into flexible curved screens, OLED displays have become increasingly sought after cutting-edge display components in the field of consumer electronics. [0003] During the manufacturing process of the OLED display, it is difficult to maintain the same impedance of the line from the display unit to the power supply of each pixel on the OLED display, and the luminance of the display unit is very sensitive to this, which leads to the failure of correction. In this case, the existing manufacturing process cannot produce OLED display screens with good uniform characteristics. The existing metho...

AI Technical Summary

Problems solved by technology

However, since the conventional Gamma white balance correction algorithm fails to decouple the control value (red, green and blue register values) from the adjusted value (the measured value of the red, green and blue brightness of the OLED display screen), in the adjustment process, if there is a slight Disturbance will cause the divergence of the Gamma white balance correction algorithm, resulting in an increase in the adjustment time of the OLED display, reducing the efficiency and success rate of gamma adjustment

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