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:
Oct. 16, 2012
Filed:
Jul. 23, 2010
Wen-sheng Chen, Taipei, TW;
Chih-lung Liu, Taoyuan, TW;
Ming-an Chiu, Cigu Township, Tainan County, TW;
Wen-Sheng Chen, Taipei, TW;
Chih-Lung Liu, Taoyuan, TW;
Ming-An Chiu, Cigu Township, Tainan County, TW;
Silitek Electronic (Guangzhou) Co., Ltd., Guangzhou, CN;
Lite-On Technology Corporation, Taipei, TW;
Abstract
The instant disclosure relates to a LED backlight driving module. The driving module utilizes a plurality of second power isolation transformers interconnected to each other in series and connected to a secondary winding of a first power isolation transformer in parallel to produce a plurality of second driving signals with uniform current, and driving corresponding LED light bars with uniform brightness. Optionally, a base voltage circuit can be used to provide a base voltage with negative voltage level on the other end of LED light bars, so as to lower the positive voltage level of the second driving signals. Thus, it is beneficial that the LED backlight driving module provides higher power conversion efficiency and has lower design cost.