Patent ID: 11935454
Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A brightness compensation method of a display panel, wherein the display panel is divided into at least one region, the at least one region comprises a to-be-corrected region and a reference region, and the brightness compensation method comprises:
using a photographing component, disposed directly in front of the reference region, to photograph the display panel displaying a preset grayscale image, obtaining an image of the to-be-corrected region under a preset grayscale;
obtaining brightness data of the to-be-corrected region through the image of the to-be-corrected region under the preset grayscale;
obtaining at least two of a shortest distance from the optical center of the lens of the photographing component to the display panel, a distance from the optical center of the lens of the photographing component to a center of the to-be-corrected region, or a distance from a center of the reference region to the center of the to-be-corrected region;
calculating a regional viewing angle of the to-be-corrected region according to the at least two of the shortest distance from the optical center of the lens of the photographing component to the display panel, the distance from the optical center of the lens of the photographing component to the center of to-be-corrected region, or the distance from the center of the reference region to the center of the to-be-corrected region, wherein the regional viewing angle is an included angle between a connection line of an optical center of a lens of the photographing component connecting to a center of the at least one region, and a normal of the display panel;
correcting brightness of the to-be-corrected region to obtain corrected brightness data of the to-be-corrected region according to the regional viewing angle of the to-be-corrected region; and
performing brightness compensation on the display panel according to the corrected brightness data of the to-be-corrected region.