Invention Application
- Patent Title: CIRCULAR POLARIZER, LIQUID CRYSTAL DISPLAY DEVICE, AND TERMINAL DEVICE
- Patent Title (中): 圆形极化器，液晶显示器件和终端器件
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Application No.: US13099793Application Date: 2011-05-03
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Publication No.: US20120105775A1Publication Date: 2012-05-03
- Inventor: Jin MATSUSHIMA , Ken SUMIYOSHI , Shin-ichi UEHARA
- Applicant: Jin MATSUSHIMA , Ken SUMIYOSHI , Shin-ichi UEHARA
- Applicant Address: JP Kanagawa JP Tokyo
- Assignee: NEC LCD TECHNOLOGIES, LTD.,NEC CORPORATION
- Current Assignee: NEC LCD TECHNOLOGIES, LTD.,NEC CORPORATION
- Current Assignee Address: JP Kanagawa JP Tokyo
- 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
- US08363184B2 Circular polarizer, liquid crystal display device, and terminal device Public/Granted day:2013-01-29
Information query
IPC分类:
