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:
Jun. 21, 2005
Filed:
Sep. 02, 2003
Applicants:
Hong-tien Yu, Pate, TW;
Cheng-min Liao, Chung Li, TW;
Inventors:
Hong-Tien Yu, Pate, TW;
Cheng-Min Liao, Chung Li, TW;
Assignee:
Chunghwa Picture Tubes, Ltd., Taipei, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D011/28 ;
U.S. Cl.
CPC ...
Abstract
A backlight module is employed to provide a light source for LCD panel. The backlight module has a wedge-shaped distributor, three light pipes and two reflective arcs. The distributor is modified from rectangular-shaped to wedge-shaped so as to reduce its weight. Three light pipes are divided into two groups. One group having only one light pipe is positioned at first edge of the wedge-shaped distributor while the other group having two pipes is positioned at an edge opposite the first edge. The two groups of light pipes are rounded up respectively by two reflective arcs.