专利名称：OPTICAL FILM AND METHOD OF
MANUFACTURING THE SAME
发明人：CHOI, Jeong-Min,KIM, Kyung-Sik,LEE, Min-Hee,UM, Jun-Geun,KWAK, Sang-Min
申请号：EP07834133.6申请日：20071120公开号：EP2087385B1公开日：20150909
摘要：Disclosed is an optical film that is manufactured by using longitudinal anduniaxial stretching of an unstretched cycloolefin copolymer film and has an in-planeretardation of 100 to 150 nm and a thickness retardation of 0 to -30 nm at a wavelengthof 550 nm, a polarizing plate and a liquid crystal display including the same, and a methodof manufacturing the optical film. The method includes longitudinally and uniaxiallystretching the unstretched film while a ratio of a width to a length of a stretched portionof the film is controlled.
申请人：LG CHEMICAL LTD
地址：KR
国籍：KR
代理机构：Goddar, Heinz J.
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