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38.3: Photochemical Reaction on the Polymer Layer for Liquid Crystal Display
Author(s) -
Shin DongMyung,
Song DongMee,
Kim JaeHoon
Publication year - 2003
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.1832496
Subject(s) - chalcone , moiety , polyimide , side chain , photochemistry , materials science , polymer , layer (electronics) , liquid crystal , liquid crystal display , polymer chemistry , chemistry , optoelectronics , stereochemistry , composite material
Polyimide containing the chalcone moiety is expected to show the high photodimerization rate and stable alignment characteristics. We introduced the chalcone moiety as a side chain into the polyimide backbone to apply to the photo‐alignment layer. The photochemical reaction with the tilted incident light produced out‐of ‐the plane orientation of chalcone side chain. The orientation effects align the LC in LCD, which possesses the various pretilt angles depending on the length of side chains.