Invention Grant
- Patent Title: Image display device
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Application No.: US15754208Application Date: 2016-08-30
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Publication No.: US10663793B2Publication Date: 2020-05-26
- Inventor: Yasuhiro Kumamoto , Takeichi Shinya , Koujirou Higa , Masaaki Ofuji , Taizou Takeuchi , Tadahiro Kugimaru , Ryou Shimotaya
- 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 & Emery LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@4a76c2e1 com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@29aab35a
- International Application: PCT/JP2016/003945 WO 20160830
- International Announcement: WO2017/038085 WO 20170309
- Main IPC: G02F1/1335
- IPC: G02F1/1335 ; F21V23/06 ; G09G3/36 ; G09G3/34 ; G09F9/00 ; H05K1/02 ; F21V23/00 ; F21S2/00 ; F21V19/00 ; G09G3/20 ; G02F1/133 ; G02F1/1333 ; G02F1/13357

Abstract:
A video display device includes a liquid crystal display panel, and light source substrates configured to illuminate the liquid crystal display panel from a rear side of the liquid crystal display panel. Each of the light source substrates includes a plurality of light emitting diodes each of which is provided in corresponding one of areas different from each other in the liquid crystal display panel, and driver elements which drive each of the plurality of light emitting diodes such that light is emitted with luminance corresponding to brightness within a corresponding area of an image in accordance with a control signal. First conductive foil is disposed on a first main surface of the light source substrate on which the light emitting diodes are provided. Second conductive foil is disposed on a second main surface of the light source substrate on a side opposite to the first main surface. Ground pattern foil is disposed as the second conductive foil on the second main surface in regions each of which includes a corresponding one of the plurality of light emitting diodes in a plan view. The first conductive foil and the second conductive foil have a substantially equivalent area.
Public/Granted literature
- US20180252966A1 IMAGE DISPLAY DEVICE Public/Granted day:2018-09-06
Information query
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