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. 06, 2007
Filed:
Nov. 21, 2005
Hung-sheng Cho, Miao-Li, TW;
Chiu-lien Yang, Miao-Li, TW;
Hung-Sheng Cho, Miao-Li, TW;
Chiu-Lien Yang, Miao-Li, TW;
Innolux Display Corp., Miao-Li, TW;
Abstract
A light guide plate () for a backlight module includes a light incident surface (), a bottom surface (), and a plurality of light guide elements () disposed therein. Each light guide element has a light refractive surface () opposite to the light incident surface. An angle between the light refractive surface and the bottom surface is an acute angle. A refractive index of each light guide element is different from that of adjacent light guide elements. The reflectivity index of the light guide element and the angle can be selected and arranged so that most if not all the light beams are emitted from the light output surface. Thereby, the light guide plate is highly efficient in the utilization of light beams.