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.:

US 9182523 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 10, 2015

Filed:

Jun. 18, 2012
Applicants:

Gi Suk Sung, Seongnam-si, KR;

Chang Kun Kim, Yongin-si, KR;

Inventors:

Gi Suk Sung, Seongnam-si, KR;

Chang Kun Kim, Yongin-si, KR;

Assignee:

GLOTEC CO., LTD, Jincheon-Gun, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/04 (2006.01); G02B 5/02 (2006.01); F21V 8/00 (2006.01);
U.S. Cl.
CPC ...
G02B 5/0231 (2013.01); G02B 5/0278 (2013.01); G02B 6/0053 (2013.01);
Abstract

An optical sheet having a single sheet structure for an edge-lighting backlight unit using a printless light guide plate, a method of manufacturing the same, and a liquid crystal display apparatus using the same are provided. The optical sheet having a single sheet structure includes a first prism sheet having a prism pattern formed on the upper surface thereof, and a second prism sheet having a prism pattern formed on the upper surface thereof. Further, prism ridges of the first prism sheet are attached to the bottom surface of the second prism sheet by means of an adhesive so that the prism pattern of the first prism sheet and the prism pattern of the second prism sheet are directed in the same direction.


Find Patent Forward Citations

Sung, Gi. (2015). Optical film and manufacturing method thereof, liquid cristal display apparatus using the optical film (U.S. Patent No. 9182523). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9182523

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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