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Patent Searching and Data


Title:
LIGHTING DEVICE AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/038995
Kind Code:
A1
Abstract:
Provided are a lighting device capable of minimizing decreases in contrast ratio and a display device provided with the lighting device. The lighting device is provided with a wiring board, a plurality of light-emitting elements, a protrusion, and a protective layer. A main surface of the wiring board is divided into a plurality of segment areas. A number n of said plurality of light-emitting elements is provided to each of the plurality of segment areas. n > 1. The plurality of light-emitting elements are driven independently by segment area. The protective layer is configured so as to protect the plurality of light-emitting elements. The upper surface of the protective layer is positioned further toward the main surface side than the highest section of the protrusion.

Inventors:
KURIHARA MASAHIKO (JP)
FUJISAWA KOUJI (JP)
Application Number:
PCT/JP2020/021099
Publication Date:
March 04, 2021
Filing Date:
May 28, 2020
Export Citation:
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Assignee:
JAPAN DISPLAY INC (JP)
International Classes:
F21S2/00; F21V9/32; G02F1/13357; F21Y115/10
Foreign References:
JP2019062116A2019-04-18
US20190114974A12019-04-18
JP2018107257A2018-07-05
Attorney, Agent or Firm:
S & S INTERNATIONAL PPC (JP)
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