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:
Mar. 15, 2016
Filed:
Dec. 16, 2011
Applicants:
Xiang Yang, Shenzhen, CN;
Fei LI, Shenzhen, CN;
Inventors:
Xiang Yang, Shenzhen, CN;
Fei Li, Shenzhen, CN;
Assignee:
SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD., Guangdong, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/34 (2006.01); H05B 33/08 (2006.01); G09G 3/36 (2006.01);
U.S. Cl.
CPC ...
G09G 3/3406 (2013.01); G09G 3/3648 (2013.01); H05B 33/0818 (2013.01); G09G 2320/062 (2013.01); G09G 2320/0626 (2013.01); Y02B 20/346 (2013.01);
Abstract
The present invention provides a driving circuit and a driving method for light-emitting diodes (LEDs), and a display apparatus using the same. The driving circuit comprises a power switch and a dimmer circuit. The method comprising: providing a pulse width modulation (PWM) dimming signal and a high frequency dimming signal; and multiplying the PWM dimming signal and the high frequency dimming signal for providing a driving signal to the power switch. The present invention can improve a dimming effect of the LEDs.