Invention Grant
US07995178B2 Liquid-crystal-display panel and barcode reading system using the same
有权
液晶显示面板和条形码阅读系统使用相同
- Patent Title: Liquid-crystal-display panel and barcode reading system using the same
- Patent Title (中): 液晶显示面板和条形码阅读系统使用相同
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Application No.: US10547734Application Date: 2004-12-01
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Publication No.: US07995178B2Publication Date: 2011-08-09
- Inventor: Akira Suguro , Shinya Kondoh
- Applicant: Akira Suguro , Shinya Kondoh
- Applicant Address: JP Tokyo
- Assignee: Citizen Holdings Co., Ltd.
- Current Assignee: Citizen Holdings Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2003-427849 20031224
- International Application: PCT/JP2004/017879 WO 20041201
- International Announcement: WO2005/062109 WO 20050707
- Main IPC: G02F1/141
- IPC: G02F1/141 ; G02F1/1335

Abstract:
In a liquid-crystal-display panel (1) for displaying a barcode that is formed with bars having various widths arranged in parallel at various intervals by an electro-optic effect of liquid crystal, a direction of a transmissive axis (P1) of a polarizing film disposed on a side on which light from a barcode reader is irradiated is set to coincides with a direction in which the light is polarized. Moreover, the direction of transmissive axis (P1) of the polarizing film is set to be parallel or substantially parallel to a short side or a long side of each of the bars forming the barcode. A direction (M) of a long axis of a liquid crystal molecule (LCM) in a first ferroelectric state or in a second ferroelectric state is set to be parallel or substantially parallel to the direction of transmissive axis (P1) of the polarizing film, or set to form an angel of 45 degrees or substantially 45 degrees therebetween.
Public/Granted literature
- US20070024936A1 Liquid-crystal-display panel and barcode reading system using the same Public/Granted day:2007-02-01
Information query
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