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11.1: Polyimide Films Designed to Produce High Pretilt Angles with a Single Linearly Polarized UV Exposure
Author(s) -
Nishikawa M.,
Taheri B.,
West J. L.
Publication year - 1998
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 - 10.1889/1.1833711
Subject(s) - polyimide , materials science , van der waals force , anisotropy , oblique case , optics , optoelectronics , linear polarization , composite material , molecule , chemistry , layer (electronics) , physics , organic chemistry , laser , linguistics , philosophy
We designed polyimide films for LC alignment using polarized UV exposure. Unidirectional LC alignment with any desired pretilt angles from 0 up to 90 ° were obtained using a single oblique polarized UV exposure. Results suggest that photo‐decomposition of polyimide produces anisotropic van der Waals forcesz which aligns the LC.