Title: Sensitivity of the photo-crosslinkable polyimide for liquid crystal alignment
Authors: Lee, WC
Hsu, CS
Wu, ST
應用化學系
Department of Applied Chemistry
Keywords: liquid-crystal display;photoalignment mechanism;UV;polyimide;cinnamate;sensitivity
Issue Date: 1-Oct-2001
Abstract: Two methods were developed for enhancing the photosensitivity of the cinnamates-contained polyimide (PICA), One is to increase the content of cinnamate side chain in PICA main chain and another is to blend some photosensitizer into PICA films. Our experimental results show that increasing the rate of photo-dimerization decreases the alignment ability of the PICA films. Using the molecular simulation method, we successfully describe the photoalignment mechanism of the PICA films. It is also found that photo-induced LC alignment ability of the PICA film could be enhanced through choosing a proper coating solvent.
URI: http://hdl.handle.net/11536/29354
ISSN: 0021-4922
Journal: JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS
Volume: 40
Issue: 10
Begin Page: 5942
End Page: 5946
Appears in Collections:Articles


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