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:
Feb. 18, 2014
Filed:
Jun. 22, 2011
Shih-wen Wei, Hsin-Chu, TW;
Tsung-shiun Lee, Hsin-Chu, TW;
Yun-pei Huang, Hsin-Chu, TW;
Chun-liang Kuo, Hsin-Chu, TW;
Shih-Wen Wei, Hsin-Chu, TW;
Tsung-Shiun Lee, Hsin-Chu, TW;
Yun-Pei Huang, Hsin-Chu, TW;
Chun-Liang Kuo, Hsin-Chu, TW;
AU Optronics Corp., Hsinchu, TW;
Abstract
The disclosure provides a backlight module applied to a liquid crystal display device. The backlight module includes: a control circuit for outputting a driving signal according to an analog adjustment signal or a digital adjustment signal; a driving circuit for outputting a lamp voltage according to the driving signal; a fluorescent lamp set, including a plurality of lamps, for receiving the lamp voltage and thereby generating a lamp current; a lamp feedback circuit c for outputting a feedback signal according to the lamp voltage; and a dynamic protection circuit, for dynamically adjusting a protection command signal according to the analog dimming signal or the digital dimming signal, comparing the protection command signal and the feedback signal and thereby outputting a comparing result signal to the control circuit.