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. 20, 2012
Filed:
Nov. 03, 2010
Zhi-ting YE, Miaoli County, TW;
Chang-wei Yu, Nantou County, TW;
Nien-ying Yang, Taichung County, TW;
Kuo-jui Huang, Taichung County, TW;
Ying-cheng Shih, Taichung, TW;
Zhi-Ting Ye, Miaoli County, TW;
Chang-Wei Yu, Nantou County, TW;
Nien-Ying Yang, Taichung County, TW;
Kuo-Jui Huang, Taichung County, TW;
Ying-Cheng Shih, Taichung, TW;
Wintek Corporation, Taichung, TW;
Abstract
A backlight module that includes a light guide plate, a point light source having a light emitting surface, a first brightness enhancement film disposed above the light guide plate, and a second brightness enhancement film disposed between the light guide plate and the first brightness enhancement film is provided. The light guide plate has a rectangular pre-display area. A reference line intersects a margin of the rectangular pre-display area in 45 degrees. A normal of the light emitting surface intersects the reference line in a first included angle with ±18 degrees based on the reference line. The first brightness enhancement film has first prism structures extended in a first extending direction intersecting the normal in a second included angle with ±25 degrees based on the light emitting surface. The second brightness enhancement film is disposed between the light guide plate and the first brightness enhancement film.