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:
Aug. 10, 2021
Filed:
Oct. 17, 2019
Samsung Display Co., Ltd., Yongin-si, KR;
Anup P. Jose, San Jose, CA (US);
Amir Amirkhany, Sunnyvale, CA (US);
Mohamed Elzeftawi, San Jose, CA (US);
Samsung Display Co., Ltd., Yongin-si, KR;
Abstract
A system and method for sensing drive current in a pixel. In some embodiments, the system includes: a first pixel, a second pixel, a differential sensing circuit, a reference current source, and a control circuit. The differential sensing circuit may have a first input, a second input, and an output, the first input being connected to a node at which a reference current generated by the reference current source is subtracted from a first pixel current, the first pixel current including a current generated by the first pixel. The second input may be configured to receive a second pixel current, the second pixel current including a current generated by the second pixel. The output may be configured to produce an output signal based on a difference between a current received at the first input and a current received at the second input.