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Chemically Imidized Polyimide as an Alignment Material for Liquid Crystal Displays
Author(s) -
Nazarenko V. G.,
Clair A. K.,
Klouda R.,
Polak R. D.,
Nastishin Yu.,
Lavrentovich O. D.
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 - 10.1889/1.1833712
Subject(s) - polyimide , materials science , composite material , layer (electronics)
We have characterized a chemically imidized polyimide LARC‐CP1 newly synthesized by NASA as a low‐temperature‐processing alignment material for liquid crystal displays. Using low‐temperature boiling solvents, we havedeveloped a technique of cell coating that leads to a uniform planar director orientation with a pretilt angle that can be controlled in the range 0–7 degrees. Dependencies of the pretilt angle, anchoring energy coefficient, surface topography and voltage holding ratio on the type of solvent and conditions of processing(temperature, rubbing strength, etc.) have been explored.