Invention Grant
US08553175B2 Optical sheet having irregularity portions, backlight device with optical sheet, and liquid crystal display device including a backlight device with optical sheet
有权
具有不规则部分的光学片，具有光学片的背光装置和包括具有光学片的背光装置的液晶显示装置
- Patent Title: Optical sheet having irregularity portions, backlight device with optical sheet, and liquid crystal display device including a backlight device with optical sheet
- Patent Title (中): 具有不规则部分的光学片，具有光学片的背光装置和包括具有光学片的背光装置的液晶显示装置
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Application No.: US11735810Application Date: 2007-04-16
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Publication No.: US08553175B2Publication Date: 2013-10-08
- Inventor: Eiji Ohta , Toru Abiko , Masato Ishigaki , Satoshi Sato , Yasuhiro Nishida , Akihiro Horii
- Applicant: Eiji Ohta , Toru Abiko , Masato Ishigaki , Satoshi Sato , Yasuhiro Nishida , Akihiro Horii
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: K&L Gates LLP
- Priority: JPP2006-112388 20060414
- Main IPC: G09F13/08
- IPC: G09F13/08 ; F21V5/02 ; G02F1/1335
Abstract:
An optical sheet, a backlight device, and a liquid crystal display device are provided. The beam-condensing optical sheet includes a large number of irregularity portions arranged on one main surface of a light-transmissive base, in which a pitch of arrangement of the irregularity portions is 110 μm or more and 330 μm or less, and surface roughness (Ra) of the irregularity portion is 0.1 μm or less.
Public/Granted literature
- US20070242479A1 OPTICAL SHEET, BACKLIGHT DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE Public/Granted day:2007-10-18
Information query
