Invention Grant
- Patent Title: Optical film, optical compensation film, polarizing plate, liquid crystal display unit and self luminous display unit
- Patent Title (中): 光学膜，光学补偿膜，偏光板，液晶显示单元和自发光显示单元
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Application No.: US11596878Application Date: 2005-05-18
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Publication No.: US07671947B2Publication Date: 2010-03-02
- Inventor: Shigeaki Nimura , Hajime Nakayama , Yosuke Nishiura , Tadashi Ito , Yasuo Mukunoki
- Applicant: Shigeaki Nimura , Hajime Nakayama , Yosuke Nishiura , Takako Nishiura, legal representative , Tadashi Ito , Yasuo Mukunoki
- Applicant Address: JP Minato-Ku, Tokyo
- Assignee: Fujifilm Corporation
- Current Assignee: Fujifilm Corporation
- Current Assignee Address: JP Minato-Ku, Tokyo
- Agency: Buchanan Ingersoll & Rooney PC
- Priority: JP2004-148329 20040518; JP2005-008202 20050114; JP2005-079296 20050318
- International Application: PCT/JP2005/009500 WO 20050518
- International Announcement: WO2005/111676 WO 20051124
- Main IPC: G02F1/1335
- IPC: G02F1/1335 ; G02F1/1337 ; G02B5/30
Abstract:
An optical film which has Re(λ) and Rth(λ) fulfilling the following two formulae: 0≦Re(590)≦10 |Rth(590)|≦25 wherein Re(λ) is a retardation value in plane (nm) at a wavelength of λ nm; and Rth(λ) is a retardation value in film thickness direction (nm) at a wavelength of λ nm.
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