Invention Grant
- Patent Title: Fluorene derivative, liquid crystal composition comprising the same, and optical film using the same liquid crystal composition
- Patent Title (中): 芴衍生物，含有它们的液晶组合物和使用相同液晶组合物的光学膜
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Application No.: US12448875Application Date: 2008-01-22
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Publication No.: US08052891B2Publication Date: 2011-11-08
- Inventor: Jae-Ho Cheong , Min-Jin Ko , Myung-Sun Moon , Bum-Gyu Choi , Dae-Ho Kang , Ki-Youl Lee , Yun-Bong Kim
- Applicant: Jae-Ho Cheong , Min-Jin Ko , Myung-Sun Moon , Bum-Gyu Choi , Dae-Ho Kang , Ki-Youl Lee , Yun-Bong Kim
- Applicant Address: KR Seoul
- Assignee: LG Chem, Ltd.
- Current Assignee: LG Chem, Ltd.
- Current Assignee Address: KR Seoul
- Agency: McKenna Long & Aldridge LLP
- Priority: KR10-2007-0007214 20070123
- International Application: PCT/KR2008/000394 WO 20080122
- International Announcement: WO2008/091096 WO 20080731
- Main IPC: C09K19/00
- IPC: C09K19/00 ; C09K19/06 ; C09K19/32 ; C09K19/52
Abstract:
Disclosed are a novel fluorene derivative, a liquid crystal composition comprising the same, and an optical film using the same liquid crystal composition. More particularly, there are provided a liquid crystal material for a viewing angle compensation film with high quality characteristics, which can improve a contrast ratio measured at an oblique angle to the front and minimize variations in color with viewing angles in a black state, a liquid crystal composition comprising the same liquid crystal material, and a compensation film obtained from the same liquid crystal composition.
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