A4-sized flexible ferroelectric liquid-crystal displays with micro color filters

— We demonstrated an A4‐paper‐sized flexible ferroelectric liquid‐crystal (FLC) color displays fabricated by using a new plastic‐substrate‐based process which was developed for large‐sized devices. Finely patterned color filters and ITO electrodes were formed on a plastic substrate by a transfer met...

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Bibliographic Details
Published in:Journal of the Society for Information Display 2005-06, Vol.13 (6), p.461-468
Main Authors: Sato, Hiroto, Fujikake, Hideo, Murashige, Takeshi, Kikuchi, Hiroshi, Kurita, Taiichiro, Sato, Fumio
Format: Article
Language:English
Subjects:
A4-sized flexible display
ferroelectric liquid crystal
flexographic printing
micro color filters
polymer
transfer method
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Summary:— We demonstrated an A4‐paper‐sized flexible ferroelectric liquid‐crystal (FLC) color displays fabricated by using a new plastic‐substrate‐based process which was developed for large‐sized devices. Finely patterned color filters and ITO electrodes were formed on a plastic substrate by a transfer method to avoid surface roughness and thermal distortion of the substrate, which induce disordering of the FLC molecular alignment. The thickness of an FLC/monomer solution sandwiched by two plastic‐film substrates was well controlled over a large area by using flexographic printing and lamination techniques. Molecular‐aligned polymer walls and fibers were formed in the FLC by a two‐step photopolymerization‐induced phase‐separation method using UV‐light irradiation. A fabricated A4‐sized flexible‐sheet display for color‐segment driving was able to exhibit color images even when it was bent.
ISSN:1071-0922
1938-3657
DOI:10.1889/1.1973983