Title:
OPTICAL ELEMENT AND ILLUMINATION APPARATUS INCLUDING OPTICAL ELEMENT
Document Type and Number:
WIPO Patent Application WO/2023/234109
Kind Code:
A1
Abstract:
This optical element comprises a first liquid crystal cell, a second liquid crystal cell, a third liquid crystal cell, and a fourth liquid crystal cell, which are disposed in order so as to overlap each other. The first, second, third, and fourth liquid crystal cells each include a plurality of first electrodes arranged like stripes and extending in a first extension direction, a first orientation film located on the plurality of first electrodes, a liquid crystal layer located on the first orientation film, a second orientation film located on the liquid crystal layer, and a plurality of second electrodes located on the second orientation film, arranged like stripes, extending in a second extension direction, and intersecting the plurality of first electrodes. Further detailed structures are described in the description.
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Inventors:
IKEDA KOJIRO (JP)
KOITO TAKEO (JP)
KOITO TAKEO (JP)
Application Number:
PCT/JP2023/019059
Publication Date:
December 07, 2023
Filing Date:
May 23, 2023
Export Citation:
Assignee:
JAPAN DISPLAY INC (JP)
International Classes:
G02F1/13; G02F1/1337; G02F1/1343; G02F1/1347
Domestic Patent References:
| WO2021100361A1 | 2021-05-27 |
Foreign References:
| JP2022070474A | 2022-05-13 | |||
| JP2010230887A | 2010-10-14 | |||
| US20190204640A1 | 2019-07-04 |
Attorney, Agent or Firm:
TAKAHASHI, HAYASHI AND PARTNER PATENT ATTORNEYS, INC. (JP)
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