Title:
LIGHTING CONTROL SHEET, LIGHTING CONTROL DEVICE, MANUFACTURING METHOD OF LIGHTING CONTROL SHEET, AND EVALUATION METHOD OF LIGHTING CONTROL SHEET
Document Type and Number:
Japanese Patent JP2022148342
Kind Code:
A
Abstract:
To provide a lighting control sheet having antiglare properties, a lighting control device, a manufacturing method of a lighting control sheet, and an evaluation method of a lighting control sheet.SOLUTION: A lighting control sheet includes: an organic polymer layer 31P zoning a plurality of voids 31D; and a liquid crystal composition 31LC containing a liquid crystal compound LCM and filling the voids 31D. A drive of the liquid crystal compound LCM changes a transmittance of visible light. The lighting control sheet has an opaque state in which light transmittance at 365 nm is 0.1% to 5%. The liquid crystal composition 31LC contains a dichroic dye DP that exhibits a color in an opaque state.SELECTED DRAWING: Figure 2
Inventors:
MATSUBARA YOSHITAKA
Application Number:
JP2021049981A
Publication Date:
October 06, 2022
Filing Date:
March 24, 2021
Export Citation:
Assignee:
TOPPAN PRINTING CO LTD
International Classes:
G02F1/1334; G02B5/00; G02F1/13
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Hironobu Onda