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Thermally Stable LC alignment on Polyimide Films Exposed to UV During Imidization
Author(s) -
Kim JaeHoon,
Agra Deña Mae,
Bharat X.,
Acharya R.,
Kumar Satyendra
Publication year - 1999
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 - 10.1889/1.1834021
Subject(s) - polyimide , materials science , anchoring , in situ , thermal stability , liquid crystal , thermal , composite material , optoelectronics , chemical engineering , layer (electronics) , chemistry , organic chemistry , structural engineering , physics , meteorology , engineering
Polyimide alignment layers have been prepared using “in‐situ” exposure to linearly polarized UV LPUV light during imidization. Liquid crystal alignment on these layers exhibits higher anchoring strength and thermal stability than the “conventional” UV method that employs LPUV exposure after imidization. The in‐situ method requires fewer steps and shorter processing time compared to the conventional method.