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Title:
LIGHT DIFFUSION SHEET, BACKLIGHT UNIT, LIQUID CRYSTAL DISPLAY DEVICE, AND INFORMATION EQUIPMENT
Document Type and Number:
WIPO Patent Application WO/2023/210614
Kind Code:
A1
Abstract:
A light diffusion sheet 43 has an uneven shape that diffuses light on a first surface 102a that is a light exit surface or a light entrance surface. In the light diffusion sheet 43, a brightness uniformizing layer 103 having a plurality of particles 107 or a dot pattern is provided on a second surface 101a opposite to the first surface 102a.

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Inventors:
SHIBA SATOSHI (JP)
KARIYA YU (JP)
FUKUDA TADAYOSHI (JP)
HARADA KENICHI (JP)
OGIDA ONTA (JP)
Application Number:
PCT/JP2023/016211
Publication Date:
November 02, 2023
Filing Date:
April 25, 2023
Export Citation:
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Assignee:
KEIWA INC (JP)
International Classes:
G02B5/02; F21S2/00; F21V3/00; G02F1/1335; G02F1/13357; F21Y105/16; F21Y115/10; F21Y115/30
Domestic Patent References:
WO2021199741A12021-10-07
Foreign References:
JP2005241919A2005-09-08
JP2020060759A2020-04-16
JP2009025438A2009-02-05
Attorney, Agent or Firm:
MAEDA & PARTNERS (JP)
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