Invention Grant
- Patent Title: Video display device
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Application No.: US15750881Application Date: 2016-08-30
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Publication No.: US10976601B2Publication Date: 2021-04-13
- Inventor: Yasuhiro Kumamoto , Takeichi Shinya , Koujirou Higa , Masaaki Ofuji , Taizou Takeuchi , Tadahiro Kugimaru
- Applicant: Panasonic Intellectual Property Management Co., Ltd.
- Applicant Address: JP Osaka
- Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee Address: JP Osaka
- Agency: McDermott Will and Emery LLP
- Priority: JPJP2015-172363 20150901,JP2016-047678 20160310
- International Application: PCT/JP2016/003943 WO 20160830
- International Announcement: WO2017/038084 WO 20170309
- Main IPC: F21V8/00
- IPC: F21V8/00 ; F21K9/00 ; G02F1/13357 ; F21K9/62

Abstract:
A video display device includes: a display panel that displays an image based on an input image signal; a light source substrate that includes a plurality of light sources on a main surface which is a front side of the light source substrate, and emits, toward a rear side of the display panel, light emitted from the plurality of light sources; a reflection sheet that is provided on the main surface of the light source substrate, and in which hollow partitioning walls each of which separates adjacent two light sources of the plurality of light sources are formed; and an optical member that has a plate shape, is provided between the display panel and the light source substrate, and uniformizes luminance distribution of the light emitted from the light source substrate. The reflection sheet extends to an outside of an outer peripheral edge of the optical member as viewed from the front side.
Public/Granted literature
- US20180196312A1 VIDEO DISPLAY DEVICE Public/Granted day:2018-07-12
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