Invention Grant
- Patent Title: Circular polarizer, liquid crystal display device, and terminal device
- Patent Title (中): 圆偏振片，液晶显示装置及终端装置
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Application No.: US13099793Application Date: 2011-05-03
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Publication No.: US08363184B2Publication Date: 2013-01-29
- Inventor: Jin Matsushima , Ken Sumiyoshi , Shin-ichi Uehara
- Applicant: Jin Matsushima , Ken Sumiyoshi , Shin-ichi Uehara
- Applicant Address: JP Tokyo JP Kanagawa
- Assignee: NEC Corporation,NLT Technologies, Ltd.
- Current Assignee: NEC Corporation,NLT Technologies, Ltd.
- Current Assignee Address: JP Tokyo JP Kanagawa
- Agency: Young & Thompson
- Priority: JP2006-196115 20060718
- Main IPC: G02F1/1335
- IPC: G02F1/1335
Abstract:
In an LCD device, a circular polarizer is provided to each of two substrates that hold a liquid crystal layer. The circular polarizer on the display surface side includes a polarizer, λ/2 plate in which Rth>0, and a λ/4 plate in which Rth 0. Rth is a retardation in the thickness direction of a λ/2 plate or a λ/4 plate. The absolute value of the sum of the Rth between the λ/2 plate for which Rth>0 and the λ/2 plate for which Rth 0.
Public/Granted literature
- US20120105775A1 CIRCULAR POLARIZER, LIQUID CRYSTAL DISPLAY DEVICE, AND TERMINAL DEVICE Public/Granted day:2012-05-03
Information query
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