Title:
LIGHT CONTROL SHEET AND METHOD FOR MANUFACTURING LIGHT CONTROL SHEET
Document Type and Number:
WIPO Patent Application WO/2023/214580
Kind Code:
A1
Abstract:
This light control sheet reversibly switches from transparent to nontransparent by a change in alignment of a liquid crystal compound. The light control sheet comprises a polymer resin layer in which a plurality of voids are dispersed, and a light control layer including a liquid crystal composition which includes a liquid crystal compound and with which the voids are filled. In the light control layer, the percentage of the volume of the liquid crystal composition with respect to the sum of the volume of the polymer resin layer and the volume of the liquid crystal composition is 40-60%. The void diameter of the voids is 2 µm or less.
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Inventors:
HORIKAWA KIMIO (JP)
OONUMA FUMIO (JP)
YASUHARA TOSHIJI (JP)
NAKAMURA GEN (JP)
OONUMA FUMIO (JP)
YASUHARA TOSHIJI (JP)
NAKAMURA GEN (JP)
Application Number:
PCT/JP2023/017141
Publication Date:
November 09, 2023
Filing Date:
May 02, 2023
Export Citation:
Assignee:
TOPPAN INC (JP)
International Classes:
G02F1/13; G02F1/1334; G02F1/1347
Domestic Patent References:
| WO2021045083A1 | 2021-03-11 |
Foreign References:
| JPH0659246A | 1994-03-04 | |||
| JP3203546U | 2016-04-07 | |||
| JP2019536103A | 2019-12-12 |
Attorney, Agent or Firm:
ONDA Makoto et al. (JP)
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