Title:
LIGHTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/135937
Kind Code:
A1
Abstract:
This lighting device is equipped with a light source, a first liquid crystal panel on the light source, and a second liquid crystal panel on the first liquid crystal panel. The first liquid crystal panel and the second liquid crystal panel each have a substrate, a plurality of lower electrodes positioned in a stripe-like arrangement on the substrate, a first oriented film on the plurality of lower electrodes, a liquid crystal layer on the first oriented film, a second oriented film which is disposed on the liquid crystal layer and is oriented in a direction which is perpendicular to that of the first oriented film, a plurality of upper electrodes which are positioned in a stripe-like arrangement and are perpendicular to the plurality of lower electrodes, and a counter substrate on the plurality of upper electrodes. A first angle which is formed by the direction of extension of the plurality of lower electrodes in the first liquid crystal panel and the plurality of lower electrodes in the second liquid crystal panel is 0-5°, inclusive.
Inventors:
IKEDA KOJIRO (JP)
KOITO TAKEO (JP)
KOITO TAKEO (JP)
Application Number:
PCT/JP2022/043044
Publication Date:
July 20, 2023
Filing Date:
November 21, 2022
Export Citation:
Assignee:
JAPAN DISPLAY INC (JP)
International Classes:
G02F1/13; F21S2/00; F21V9/40; G02F1/1343; G02F1/1347; F21Y115/10
Domestic Patent References:
| WO2021157225A1 | 2021-08-12 |
Foreign References:
| US20200050076A1 | 2020-02-13 |
Attorney, Agent or Firm:
TAKAHASHI, HAYASHI AND PARTNER PATENT ATTORNEYS, INC. (JP)
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