Composite photoalignment layer
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United States of America Patent
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Oct 27, 2020
Grant Date -
Feb 8, 2018
app pub date -
Oct 17, 2017
filing date -
Oct 29, 2015
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Abstract
A composite photoalignment layer for aligning liquid crystal molecules includes: a monomeric material; a photoinitiator or a thermal initiator; and an azo dye material. A method for preparing a composite photoalignment layer for aligning liquid crystal molecules includes: mixing, in solution form, a monomeric material, a photoinitiator or a thermal initiator, and an azo dye material; coating the mixed solution onto a substrate to form a thin film; exposing the thin film to polarized light; and, with a thermal initiator, heating the thin film to polymerize the monomeric material and form a solid thin film.
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