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Title:
DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/158478
Kind Code:
A1
Abstract:
This display device is provided with: a first substrate comprising a first transparent substrate, multiple first wirings (S) that extend in a first direction and a second direction crossing the first direction, a switching element that is electrically connected to the first wirings, and a pixel electrode (PE) that is electrically connected to the switching element; a second substrate comprising a second transparent substrate and a common electrode that faces the pixel electrode; a lightguide element (LG) held between the first substrate and second substrate and comprising a liquid crystal layer that contains a striated polymer and liquid crystal molecules, multiple light emitting elements (LD) that are arranged in the first direction, a third transparent substrate (30) that has a primary surface and a lateral surface facing the light emitting elements, and a transparent layer (40) that is arranged on the primary surface and that has a refractive index lower than that of the third transparent substrate. The third transparent substrate is adhered to the first transparent substrate or the second transparent substrate with the transparent layer sandwiched therebetween, the transparent layer is provided with multiple belt parts (41) which extend in the first direction and the second direction, and the multiple first wirings extend in the same direction and overlap with the multiple belt parts.

Inventors:
NAKAMURA TENFU (JP)
OKUYAMA KENTARO (JP)
IKEDA KOJIRO (JP)
Application Number:
PCT/JP2022/001739
Publication Date:
July 28, 2022
Filing Date:
January 19, 2022
Export Citation:
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Assignee:
JAPAN DISPLAY INC (JP)
International Classes:
G02F1/13357; F21S2/00; G02F1/1334; G02F1/1368; F21Y115/10
Foreign References:
JP2020016724A2020-01-30
US20190079240A12019-03-14
JP2019032411A2019-02-28
Attorney, Agent or Firm:
S & S INTERNATIONAL PPC (JP)
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