Invention Grant
US07964254B2 Optical laminate, optical element and liquid crystal display device
有权
光学层压板,光学元件和液晶显示装置
- Patent Title: Optical laminate, optical element and liquid crystal display device
- Patent Title (中): 光学层压板,光学元件和液晶显示装置
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Application No.: US10593590Application Date: 2005-03-22
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Publication No.: US07964254B2Publication Date: 2011-06-21
- Inventor: Shunsuke Yamanaka , Kohei Arakawa
- Applicant: Shunsuke Yamanaka , Kohei Arakawa
- Applicant Address: JP Tokyo
- Assignee: Zeon Corporation
- Current Assignee: Zeon Corporation
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2004-084969 20040323
- International Application: PCT/JP2005/005666 WO 20050322
- International Announcement: WO2005/091024 WO 20050929
- Main IPC: G02F1/1335
- IPC: G02F1/1335

Abstract:
An optical laminate having layer A having a resin having a negative intrinsic birefringence and at least one layer B having a transparent resin, having substantially no orientation and laminated at least on one face of layer A and satisfies a relation |Re(A)|>|Re(B)|, wherein Re(A) and Re(B) represent in-plane retardations of layer A and layer B, respectively, measured with light having a wavelength of 400 to 700 nm, an optical element having a laminate of the optical laminate and a polarizer plate, and a liquid crystal display device using at least one sheet of the optical laminate. In the liquid crystal display device, optical compensation can be made in accordance with the mode of the liquid crystal display by the three dimensional control of the refractive index, and the liquid crystal display device provides an image display with liquid crystals exhibiting small change in the phase contrast depending on the viewing angle.
Public/Granted literature
- US20070172606A1 Optical laminate, optical element and liquid crystal display decive Public/Granted day:2007-07-26
Information query
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