Photochemical reaction on the polymer layer for liquid crystal display

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 tilted angle of incident light produced out-of-t...

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Bibliographic Details
Published in:Materials Science & Engineering C 2004-01, Vol.24 (1), p.127-130
Main Authors: Shin, Dong-Myung, Song, Dong-Mee, Kim, Yong Bae
Format: Article
Language:English
Subjects:
Photo-chemical reaction
Pretilt angle
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Summary: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 tilted angle of 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.
ISSN:0928-4931
1873-0191
DOI:10.1016/j.msec.2003.09.008