发明授权
- 专利标题: Polymer film, optically-compensatory film, process for producing the same, polarizing plate and liquid-crystal display device
- 专利标题(中): 聚合物膜,光学补偿膜,其制造方法,偏振片和液晶显示装置
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申请号: US13602691申请日: 2012-09-04
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公开(公告)号: US08632863B2公开(公告)日: 2014-01-21
- 发明人: Tadashi Omatsu
- 申请人: Tadashi Omatsu
- 申请人地址: JP Minato-Ku, Tokyo
- 专利权人: FUJIFILM Corporation
- 当前专利权人: FUJIFILM Corporation
- 当前专利权人地址: JP Minato-Ku, Tokyo
- 代理机构: Buchanan Ingersoll & Rooney PC
- 优先权: JP2005-014053 20050121
- 主分类号: G02F1/1335
- IPC分类号: G02F1/1335 ; G02B1/08
摘要:
A polymer film that has: a ratio R (VT/VM) of a sound velocity in a transverse direction VT to a sound velocity in a machine direction VM of from 1.05 to 1.50; and an in-plane retardation Re(λ) and a thickness-direction retardation Rth(λ) satisfying formula (I): (I) 0≦Re(630)≦10, and |Rth(630)|≦25, wherein Re(λ) represents an in-plane retardation at a wavelength of λ (nm); and Rth(λ) represents a thickness-direction retardation at a wavelength of λ (nm).
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