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:
Apr. 17, 2007
Filed:
Aug. 18, 2005
Di Feng, Beijing, CN;
Ying-bai Yan, Beijing, CN;
Xing-peng Yang, Beijing, CN;
Hai-tao Liu, Beijing, CN;
Guo-fan Jin, Beijing, CN;
Shou-shan Fan, Beijing, CN;
Di Feng, Beijing, CN;
Ying-Bai Yan, Beijing, CN;
Xing-Peng Yang, Beijing, CN;
Hai-Tao Liu, Beijing, CN;
Guo-Fan Jin, Beijing, CN;
Shou-Shan Fan, Beijing, CN;
Tsinghua University, Haidian District, Beijing, CN;
Hon Hai Precision Industry Co., Ltd., Tu-Cheng, Taipei Hsien, TW;
Abstract
A light guide device () and a backlight module using the same. The light guide device includes: an incident surface (); an emitting surface () adjacent to the incident surface; a reflecting surface () opposited to the emitting surface; a plurality of first V-shaped structures () formed on the emitting surface; and a plurality of second V-shaped structures () formed on the reflecting surface and perpendicular to the first V-shaped structures, wherein respective heigths of the second V-shaped structures increase with increasing distance from the incident surface and respective distances between adjacent second V-shaped structures decrease with increasing distance from the incident surface. The light guide device of the present invention does not need optical elements, and thus has a simple structure. A backlight module using the same light guide plate is also provided.