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. 14, 2009
Filed:
Apr. 12, 2006
Jin-sung Choi, Yongin-si, KR;
Jheen-hyeok Park, Seongnam-si, KR;
Byung-yun Joo, Goyang-si, KR;
Ju-hwa Ha, Seoul, KR;
Jung-wook Paek, Suwon-si, KR;
Jin-Sung Choi, Yongin-si, KR;
Jheen-Hyeok Park, Seongnam-si, KR;
Byung-Yun Joo, Goyang-si, KR;
Ju-Hwa Ha, Seoul, KR;
Jung-Wook Paek, Suwon-si, KR;
Abstract
A light guide plate includes a first optical member having a first light path-changing portion to separate a first light portion and a second light portion from a light, and a second optical member having a second light path-changing portion corresponding to the first light path-changing portion. The first optical member has a first refractive index against the first light portion of the light and a second refractive index against the second light portion of the light, and the second optical member has the first refractive index against the first and second light portions. Thus, brightness and brightness uniformity of an image displayed on a display apparatus may be improved, and a number of parts of the display apparatus may be reduced.