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. 25, 2023
Filed:
Dec. 08, 2021
Applicant:
Lx Semicon Co., Ltd., Daejeon, KR;
Inventors:
Assignee:
LX SEMICON CO., LTD., Daejeon, KR;
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/32 (2016.01); H05B 45/325 (2020.01);
U.S. Cl.
CPC ...
G09G 3/32 (2013.01); H05B 45/325 (2020.01); G09G 2310/0272 (2013.01); G09G 2320/064 (2013.01);
Abstract
An embodiment relates to a technique for driving an LED display. In a method of controlling grayscale of pixels dividedly by N subframes (N is a natural number of 2 or greater), a pulse width modulation (PWM) control value of each subframe may be calculated by a precalculator disposed at a front end of latches, thereby simplifying a circuit.