The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 20, 2021
Filed:
Jul. 17, 2019
Boe Technology Group Co., Ltd., Beijing, CN;
Danna Song, Beijing, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
Abstract
A luminance compensation method is configured to compensate luminance of a plurality of sub-pixels included in a display device. The luminance compensation method includes a curve generation and update process and a compensation process for each sub-pixel to be compensated. The curve generation and update process includes: detecting an actual luminance value of the sub-pixel to be compensated in real time; and generating an actual luminance curve showing how the actual luminance value of the sub-pixel to be compensated changes as a gray-scale value changes according to actual luminance values detected in real-time, and updating the actual luminance curve. The compensation process includes: obtaining an ideal luminance value corresponding to a gray-scale value to be input to the sub-pixel to be compensated, the ideal luminance value being a luminance value of the sub-pixel to be compensated after the gray-scale value is input to the sub-pixel to be compensated in a case where a light-emitting device in the sub-pixel to be compensated is not aged; and calculating a gray-scale value corresponding to an actual luminance value that is equal to the obtained ideal luminance value according to the actual luminance curve of the sub-pixel to be compensated, the gray-scale value being used as a gray-scale value that will actually be input to the sub-pixel to be compensated.