Invention Grant
- Patent Title: Lighting device with light shielding pattern and video display device using the same
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Application No.: US14416337Application Date: 2012-07-25
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Publication No.: US09651205B2Publication Date: 2017-05-16
- Inventor: Shoji Yamamoto , Satoshi Ouchi , Junichi Yokoyama
- Applicant: Shoji Yamamoto , Satoshi Ouchi , Junichi Yokoyama
- Applicant Address: JP Osaka
- Assignee: Hitachi Maxell, Ltd.
- Current Assignee: Hitachi Maxell, Ltd.
- Current Assignee Address: JP Osaka
- Agency: Mattingly & Malur, PC
- International Application: PCT/JP2012/068752 WO 20120725
- International Announcement: WO2014/016913 WO 20140130
- Main IPC: G09F13/04
- IPC: G09F13/04 ; F21K99/00 ; F21V3/04 ; F21V9/16 ; F21V13/02 ; F21V5/02 ; G02F1/1335 ; F21Y101/00 ; F21Y105/10 ; F21Y115/10

Abstract:
A lighting device has a reflection sheet; an LED having an optical element arranged at a predetermined distant position away from the reflection sheet and being used for emitting light in a direction in parallel with a light emitting surface of the lighting device in a space between the reflection sheet and the optical element; and an optical sheet provided on the light emitting surface side of the optical element. A light shielding pattern is provided at a position corresponding to the LED on the light emitting surface side of the optical element, and the light shielding pattern is configured by stacking a plurality of light shielding layers in which the light shielding layer positioned closest to the optical element side is made of a white ink, and in which at least one of the other light shielding layers is made of a mixed color ink.
Public/Granted literature
- US20150176773A1 LIGHTING DEVICE AND VIDEO DISPLAY DEVICE USING THE SAME Public/Granted day:2015-06-25
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