发明授权
- 专利标题: Retarders and circular polarizers
- 专利标题(中): 减速器和圆偏振器
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申请号: US10384749申请日: 2003-03-11
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公开(公告)号: US06824838B2公开(公告)日: 2004-11-30
- 发明人: Ken Kawata , Hiroshi Takeuchi
- 申请人: Ken Kawata , Hiroshi Takeuchi
- 优先权: JP2002-065573 20020311
- 主分类号: C09K1900
- IPC分类号: C09K1900
摘要:
A novel retarder comprising a long transparent substrate, and up on the substrate, a first and a second optically anisotropic layers formed from a homogenously aligned rod-like liquid crystal compound and having a phase shift substantially equal to n measured and equal to &pgr;/2 respectively at a wavelength of 550 nm; and a first alignment layer having a rubbing axis defining the azimuthal direction of the homogenous alignment in the first anisotropic layer. The angle between the slow axis of the first anisotropic layer and the longitudinal direction of the transparent substrate is 75°, the angle between the slow axis of the second anisotropic layer and the longitudinal direction is 15°, the angle between the slow axis of the second anisotropic layer and the slow axis of the first anisotropic layer is 60° and the azimuthal direction of the homogenous alignment in the first anisotropic layer is substantially orthogonal to the rubbing axis of the first alignment layer.
公开/授权文献
- US20040004688A1 Retarders and circular polarizers 公开/授权日:2004-01-08
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