Invention Grant
- Patent Title: Liquid crystal display device with retardation plates
- Patent Title (中): 具有相位差板的液晶显示装置
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Application No.: US13282651Application Date: 2011-10-27
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Publication No.: US08237901B2Publication Date: 2012-08-07
- Inventor: Emi Kisara , Kazuhiro Nishiyama , Mitsutaka Okita , Shigesumi Araki
- Applicant: Emi Kisara , Kazuhiro Nishiyama , Mitsutaka Okita , Shigesumi Araki
- Applicant Address: JP Fukaya-shi
- Assignee: Japan Display Central Inc.
- Current Assignee: Japan Display Central Inc.
- Current Assignee Address: JP Fukaya-shi
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2006-203860 20060726; JP2007-184426 20070713
- Main IPC: G02F1/1335
- IPC: G02F1/1335

Abstract:
A liquid crystal display device includes an OCB mode liquid crystal display panel, and an optical compensation element which is disposed outside of the liquid crystal display layer. The optical compensation element includes a polarizer plate, a first retardation plate which is disposed between the polarizer plate and the liquid crystal layer, and a second retardation plate which is disposed between the polarizer plate and the first retardation plate and has a biaxial refractive index anisotropy. The optical compensation element compensates a difference of a polarization state that differs between azimuth directions of light passing through the liquid crystal layer and compensates a shift of the polarization state of light, which passes through the retardation plate, from an azimuth direction of an absorption axis of the polarizer plate.
Public/Granted literature
- US20120038870A1 LIQUID CRYSTAL DISPLAY DEVICE Public/Granted day:2012-02-16
Information query
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