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:
Apr. 16, 2024
Filed:
Feb. 23, 2021
Samsung Display Co., Ltd., Yongin-Si, KR;
Gaurav Malhotra, Cupertino, CA (US);
Anup Jose, San Jose, CA (US);
Amir Amirkhany, Sunnyvale, CA (US);
Samsung Display Co., Ltd., Yongin-si, KR;
Abstract
A method for compensating for transistor aging in a display device is presented. The method entails dividing pixels into a plurality of groups including a first group, the first group including Z pixels wherein Z>1, sampling a pixel current for each pixel in a subset of pixels in the first group, the subset including M pixels wherein 1≤M≤Z, determining an Errorusing the sampled pixel current for the M pixels and a predefined reference current, and adjusting an input voltage for a transistor in more than one of the Z pixels based on the Error. The adjusting of the input voltage may include generating a modified voltage V, whereinand each of A and B is determined using Σsign(Error).