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:
Jul. 24, 2012
Filed:
Nov. 05, 2009
Tun-chien Teng, Hsin-Chu, TW;
Jyh-ming Chen, Hsin-Chu, TW;
Ming-feng Kuo, Hsin-Chu, TW;
Chih-jen Tsang, Hsin-Chu, TW;
Tun-Chien Teng, Hsin-Chu, TW;
Jyh-Ming Chen, Hsin-Chu, TW;
Ming-Feng Kuo, Hsin-Chu, TW;
Chih-Jen Tsang, Hsin-Chu, TW;
Coretronic Corporation, Hsin-Chu, TW;
Abstract
A light guide plate capable of guiding a light beam from a light emitting device and a backlight module using the light guide plate are provided. The light guide plate includes a light-transmissive substrate and optical structures. The light-transmissive substrate has a first surface, an opposite second surface, and an incident surface connecting the first and the second surface. The light beam enters the light-transmissive substrate through the incident surface and is emitted out of the light-transmissive substrate through the first surface. The optical structures are disposed on the second surface. Each optical structure has a first total internal reflection (TIR) surface, a second TIR surface, and a third TIR surface. The second TIR surface connects the first and third TIR surfaces. Part of the light beam from the incident surface is totally internally reflected by any adjacent two of the first, second, and third TIR surfaces in sequence.