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:
Jun. 25, 2013
Filed:
Sep. 21, 2010
Hsi-hsin Shih, Tainan County, TW;
Chien-tsung Wu, Tainan County, TW;
Chih-hao Tsai, Tainan County, TW;
Chin-ming Wang, Tainan County, TW;
Hung-wen Wang, Tainan County, TW;
Hsi-Hsin Shih, Tainan County, TW;
Chien-Tsung Wu, Tainan County, TW;
Chih-Hao Tsai, Tainan County, TW;
Chin-Ming Wang, Tainan County, TW;
Hung-Wen Wang, Tainan County, TW;
Chi Lin Optoelectronics Co., Ltd., Tainan, TW;
Abstract
The present invention relates to a light guide plate and back light module having the same. The light guide plate includes a light guide plate body and a plurality of microreliefs. The light guide plate body has a light-emitting surface and a reflecting surface. The microreliefs are disposed on the reflecting surface. Each of the microreliefs has an outer surface and a base area. The outer surface is a curved surface, and the base area contacts the reflecting surface. A ratio of the totally height of each of the microreliefs to the diameter of the base area of each of the microreliefs is between 1/7 and ¼. As a result, the light guide plate has higher light extraction efficiency.