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:
Dec. 10, 2013
Filed:
Mar. 04, 2010
Applicants:
Seong Hoon Lee, Uiwang-si, KR;
Man Suk Kim, Uiwang-si, KR;
O Yong Jeong, Uiwang-si, KR;
Chul Goo Chi, Uiwang-si, KR;
Inventors:
Seong Hoon Lee, Uiwang-si, KR;
Man Suk Kim, Uiwang-si, KR;
O Yong Jeong, Uiwang-si, KR;
Chul Goo Chi, Uiwang-si, KR;
Assignee:
Cheil Industries, Inc., Gumi-si, Kyeongsangbuk-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1335 (2006.01);
U.S. Cl.
CPC ...
Abstract
A light guide plate for an LCD back light unit has a rear surface formed with a main prism portion including a plurality of prisms, and a front surface formed with a front-lens part including a plurality of optical members such as lenticular lenses or microlenses so as to improve visibility of a predetermined pattern of the main prism part, and a liquid crystal display device using the light guide plate.