A method and related device for gamma adjustment of oled display screen

Abstract

The embodiment of the present application discloses a method for adjusting gamma of an OLED display screen and a related device, which are used to reduce the adjustment time of the OLED display screen and improve the efficiency and success rate of gamma adjustment. The method in the embodiment of the present application includes: obtaining the proportional integral; obtaining a set of gray-scale pictures of the OLED display screen, and selecting a gray-scale picture from the set of gray-scale pictures; ;Convert the luminance chromaticity target coordinates and the luminance chromaticity measured coordinates into red, green and blue luminance target values ​​and red, green and blue luminance measured values ​​in the three-primary color coordinate system respectively; according to the red, green and blue luminance target values ​​and red, green and blue luminance measured values Calculate the error value; judge whether the error value is less than the preset threshold; if not, update the parameters in the register corresponding to the gray-scale picture according to the proportional integral, and re-judgment; if so, reselect a gray-scale from the gray-scale picture set Adjust the images until all the grayscale images in the grayscale image 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

Images