The alignment of nematic liquid crystals on photolithographic micro-groove patterns
作者:
Yasushi Kawata,
Kohki Takatoh,
Makoto Hasegawa,
Masanori Sakamoto,
期刊:
Liquid Crystals
(Taylor Available online 1994)
卷期:
Volume 16,
issue 6
页码: 1027-1036
ISSN:0267-8292
年代: 1994
DOI:10.1080/02678299408027872
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The alignment of nematic liquid crystals on micro-groove patterns was studied. It has been found that the order of the alignments is determined by the edge shape, spacing, and line pitch of the micro-groove patterns. On coarse patterns, with pitches greater than 2 μm, striped patterns of the liquid crystal alignment were observed using polarized light which manifested different orientations of the liquid crystals on the top, edge, and bottom of the grooves, respectively. On fine patterns, with pitches less than 2 μm, a uniform device-quality alignment has been realized, with which twisted nematic cells were constructed in combination with the rubbed alignment layer on the opposite substrate. Their viewing angle characteristics and tilt orientations of the director were also investigated.
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