Granted Patent
B2
US 12,638,621 · App. 17/876,315 · Granted May 26, 2026
Cholesteric liquid crystal film and manufacturing method thereof
Inventors:
Takahiro Hayashi (Kanagawa, JP); Satoshi Kuniyasu (Kanagawa, JP); Mitsuyoshi Ichihashi (Kanagawa, JP)
Assignee:
FUJIFILM Corporation
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Abstract
Provided are a cholesteric liquid crystal film including a cholesteric liquid crystal, in which the cholesteric liquid crystal film has a stripe pattern in which dark portions and bright portions are alternately arranged in a straight line on an upper surface observed with a microscope; and a manufacturing method thereof.
Claims (14)
1 . A cholesteric liquid crystal film comprising:
a cholesteric liquid crystal,
wherein the cholesteric liquid crystal film has a stripe pattern in which dark portions and bright portions are alternately arranged in a straight line on an upper surface observed with a microscope, and
wherein the upper surface observed with a microscope has a bonding point at which the dark portions are bonded to each other.
2 . The cholesteric liquid crystal film according to claim 1 ,
wherein
the number of the bonding points is 10 or less per 50 μm square area.
3 . The cholesteric liquid crystal film according to claim 1 ,
wherein a distance between adjacent dark portions is 0.01 μm to 50 μm.
4 . The cholesteric liquid crystal film according to claim 1 ,
wherein the cholesteric liquid crystal film has a stripe pattern in which dark portions and bright portions are alternately arranged on a cross section in a thickness direction observed with a microscope, and
the dark portions are inclined with respect to a main surface.
5 . The cholesteric liquid crystal film according to claim 4 ,
wherein an inclined angle of the dark portions with respect to the main surface is 20° to 90°.
Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Jul 29, 2022
From: HAYASHI, TAKAHIRO; KUNIYASU, SATOSHI; ICHIHASHI, MITSUYOSHI
To: FUJIFILM CORPORATION
Reel/Frame 060666/0385 →
Priority Claims (1)
JP 2020-015749
· Jan 31, 2020
· national
Continuity (2)
Continuation
PCTJP2020047689
· Dec 21, 2020
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