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. 11, 2008
Filed:
Apr. 06, 2006
Chien-hsiang Chen, Chu Nan, TW;
Chia-tsao Wu, Chu Nan, TW;
Der-woei Hsaio, Chu Nan, TW;
Ping-feng Hwang, Chu Nan, TW;
Chien-Hsiang Chen, Chu Nan, TW;
Chia-Tsao Wu, Chu Nan, TW;
Der-Woei Hsaio, Chu Nan, TW;
Ping-Feng Hwang, Chu Nan, TW;
Coretronic Corporation, Chu Nan, Miao Li County, TW;
Abstract
A backlight module includes a light guide plate and a light source. The light guide plate includes a first end portion, a second end portion, a middle portion between the first and second end portions, a top face extending from the first end portion to the second end portion, a bottom face extending from the first end portion to the second end portion, a light entrance face interconnecting the top and bottom faces at the first end portion, and a plurality of prismatic strips formed on the bottom face. The prismatic strips have a lower density at the first end portion as compared to the middle portion. The density is defined as a total length of the prismatic strips per unit area of the bottom face. The light source is disposed adjacent to the light entrance face.