Optical film

Provided is an optical film using a cellulose derivative, which is used in image display devices such as liquid-crystal display devices. A liquid-crystal display device with a polarizing plate using the optical film has an excellent viewing angle property. More particularly, the present invention re...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: JANG WONSEOK, CHO YONGGYUN, KIM MYOUNGLAE, KIM KIYUP, KIM WONYEOB, LEE SANGYEUP
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:Provided is an optical film using a cellulose derivative, which is used in image display devices such as liquid-crystal display devices. A liquid-crystal display device with a polarizing plate using the optical film has an excellent viewing angle property. More particularly, the present invention relates to an optical film made of a cellulose ester resin, a portion of hydrogen atoms of hydroxyl groups of which is substituted with two or more substituent groups.