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MEMBER FOR DISPLAYING PROJECTED IMAGE AND PROJECTION SYSTEM

  • US 20180074315A1
  • Filed: 11/21/2017
  • Published: 03/15/2018
  • Est. Priority Date: 05/29/2015
  • Status: Active Grant
First Claim
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1. A member for displaying a projected image, comprising:

  • a first base material;

    a second base material; and

    at least one optical member,wherein the at least one optical member is disposed on a surface of the first base material or the second base material,the at least one optical member includes a plurality of cholesteric liquid crystal dots provided on a substrate,the cholesteric liquid crystal dot is formed of a liquid crystal material having a cholesteric structure,the cholesteric structure imparts a striped pattern formed of bright portions and dark portions in a cross-sectional image of the cholesteric liquid crystal dot taken by a scanning electron microscope in a direction perpendicular to the substrate,the cholesteric liquid crystal dot includes a portion where the height thereof successively increases to the maximum height thereof from an end portion toward the center thereof,an angle between a normal line with respect to a line formed by the first dark portion from the surface of the cholesteric liquid crystal dot on a side opposite to the substrate and a line representing the surface of the cholesteric liquid crystal dot is in a range of 70°

    to 90°

    in the portion of the cross-sectional image, anda reflection center wavelength of the cholesteric liquid crystal dot is in a range of 400 to 1000 nm.

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