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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 9382334 B1

PDFFull Text
Expired
Date of Patent:
Jul. 05, 2016

Filed:

Jan. 04, 2013

Optical film

Applicant:

SK Innovation Co., Ltd., Seoul, KR;

Inventors:

Myoung Lae Kim, Daejeon, KR;

Hyuk Jun Kim, Daejeon, KR;

Won Yeob Kim, Daejeon, KR;

Min Joung Im, Busan, KR;

Yeong Min Jo, Seoul, KR;

Seung Eon Lee, Daejeon, KR;

Hyo Shin Kwak, Daejeon, KR;

Assignee:

SK Innovation Co., Ltd., Seoul, KR;

Attorney:

The Webb Law Firm

Primary Examiner:

Ruiyun Zhang

Int. Cl.
CPC ...
C09K 19/00 (2006.01); C08B 3/00 (2006.01); C08B 3/14 (2006.01); C08J 5/18 (2006.01); C08L 1/10 (2006.01); G02B 5/30 (2006.01); G02F 1/1335 (2006.01); G02F 1/13363 (2006.01); C08B 5/00 (2006.01); C08B 15/05 (2006.01); C08L 1/14 (2006.01); G02B 1/04 (2006.01);
U.S. Cl.
CPC ...
C08B 3/00 (2013.01); C08B 3/14 (2013.01); C08B 5/00 (2013.01); C08B 15/05 (2013.01); C08J 5/18 (2013.01); C08L 1/10 (2013.01); C08L 1/14 (2013.01); G02B 5/305 (2013.01); G02B 5/3083 (2013.01); G02F 1/133528 (2013.01); G02F 1/133634 (2013.01); C08J 2301/14 (2013.01); G02B 1/04 (2013.01); G02F 2201/50 (2013.01); Y10T 428/10 (2015.01);
Abstract

Provided are an optical film using a cellulose derivative, useful in an image display device, such as a liquid crystal display or the like, a retardation film and a polarization film using the optical film, and a liquid crystal display having excellent view angle characteristics by using these films, while the optical film uses a cellulose derivative resin in which some hydrogen atoms of hydroxy groups of cellulose are substituted with three or more kinds of substituents.

Find Patent Forward Citations

Kim, Myoung. (2016). Optical film (U.S. Patent No. 9382334). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9382334

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

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