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:
Nov. 14, 2006
Filed:
Jul. 26, 2004
Applicants:
Cheng-min Liao, Chung Li, TW;
Wen-yu Lin, Taipei, TW;
Inventors:
Cheng-Min Liao, Chung Li, TW;
Wen-Yu Lin, Taipei, TW;
Assignee:
Chunghwa Picture Tubes, , TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21S 4/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for improving backlight uniformity is disclosed in which the two outermost lamps near each of the two sides of the back plate are positioned higher than the other lamps. Hence, the outermost lamps are closer to the scattering plate, thus improving the brightness at the two sides of the LCD panel such that various illumination and the shadows generated in specific regions on the LCD panel are avoided.