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:
Jan. 10, 2023
Filed:
Aug. 20, 2021
Applicant:
Silicon Works Co., Ltd., Daejeon, KR;
Inventors:
Assignee:
Silicon Works Co., Ltd., Daejeon, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/32 (2016.01); H05B 45/325 (2020.01); H05B 45/44 (2020.01);
U.S. Cl.
CPC ...
H05B 45/325 (2020.01); H05B 45/44 (2020.01);
Abstract
The present disclosure relates to an LED driving technique. The present disclosure provides a technique of measuring a time for reaching a forward voltage of a currently driven LED by comparing a forward voltage sensed in a previous scan line and an LED voltage sensed in a current scan line and for compensating for an ON period of a PWM (pulse width modulation) signal by the measured time for reaching the forward voltage.