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. 01, 2008
Filed:
Nov. 23, 2005
Ching-chung Chang, Taipei, TW;
Ho-min Chung, Taipei, TW;
Ching-Chung Chang, Taipei, TW;
Ho-Min Chung, Taipei, TW;
Lite-On Technology Corporation, Taipei, TW;
Abstract
A driving device is provided for a cathode fluorescent lamp (CCFL) circuit, comprising a voltage generator outputting a driving voltage and a controller coupled thereto. The controller directs the voltage generator to output a first voltage exceeding a working voltage of the CCFL to initialize the CCFL. When brightness of the cold cathode lamp tube exceeds a working brightness of the CCFL, the controller directs the voltage generator to decrease the driving voltage gradually so that the brightness of the CCFL equals the working brightness. The controller stops decreasing the driving voltage when the driving voltage equals the working voltage.