The Webb Law Firm
Optical film
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.
SK Innovation Co., Ltd.
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G02B C08B G02B C09K C08L C08J G02F C08B G02F C08B C08J G02B C08B C08L G02F
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Hyo Shin Hyuk Jun Myoung Lae Yeong Min Min Joung Seung Eon Won Yeob
Kwak Kim Kim Jo Im Lee Kim