Invention Grant
- Patent Title: Planar illumination device and liquid crystal display device using the same
- Patent Title (中): 平面照明装置及使用其的液晶显示装置
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Application No.: US12525741Application Date: 2008-12-05
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Publication No.: US08201982B2Publication Date: 2012-06-19
- Inventor: Takayuki Nagata , Kazuhisa Yamamoto , Tatsuo Itoh
- Applicant: Takayuki Nagata , Kazuhisa Yamamoto , Tatsuo Itoh
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- Priority: JP2007-315603 20071206; JP2007-325554 20071218
- International Application: PCT/JP2008/003611 WO 20081205
- International Announcement: WO2009/072296 WO 20090611
- Main IPC: F21V8/00
- IPC: F21V8/00
Abstract:
A planar illumination device is provided with a plurality of light guide paths, on which scanned light in different scanning sections of a scanning range by a scanning unit is respectively incident, and an illumination unit having a plurality of emission regions for emitting the light guided by the respective light guide paths. The number of the emission regions is 2 or more and 1000 or less, and the respective emission regions successively become luminous as the scanned light is incident on the respective light guide paths.
Public/Granted literature
- US20100026929A1 PLANAR ILLUMINATION DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME Public/Granted day:2010-02-04
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