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22.1: Alignment of Ferroelectric LCDS with Hybrid LPP‐Photoaligned Polymer Networks
Author(s) -
Fünfschilling J.,
Staider M.,
Schadt M.
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 - 10.1889/1.1834020
Subject(s) - ferroelectricity , materials science , liquid crystal display , liquid crystal , polymer , grayscale , optics , optoelectronics , composite material , pixel , physics , dielectric
Our linearly photopolymerized LPP photo‐alignment technology enables to optically align liquid crystals, thus avoiding mechanical brushing. We show that hybrid photoaligned LPP/LCP liquid crystal polymer‐ layers as thin as 12nm exhibit excellent alignment properties for ferroelectric LCD's, Deformed helix ferroelectric LCD's aligned by our technique exhibit contrast ratios >200:1, response times < 200μs and display full gray scale without ghost images.