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Proceedings Paper

Anchoring energy of photo-sensitive polyimide alignment film containing methoxy cinnamate
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Paper Abstract

Photosensitive polyimide containing 2-methoxy cinnamate was synthesized for photo-alignment layer of liquid crystals (LCs). 2-Methoxy cinnamic acid was confirmed photo-sensitive material by linearly polarized UV light. We studied that effect of polarized UV light on rubbed polyimide film. Anchoring energy of liquid crystal with aligning surface was measured. Irradiation of depolarized UV light on rubbed Polyimide film suppressed effective anchoring energy. Linearly polarized UV light on rubbed polyimide film controlled anchoring energy effectively. Polyimide film containing 2-methoxy cinnamate can control the photo-alignment layer easily due to its photo-sensitivity.

Paper Details

Date Published: 1 March 2010
PDF: 8 pages
Proc. SPIE 7599, Organic Photonic Materials and Devices XII, 75991L (1 March 2010); doi: 10.1117/12.841652
Show Author Affiliations
Suyoung Kim, Hongik Univ. (Korea, Republic of)
Sung Eui Shin, Hongik Univ. (Korea, Republic of)
DongMyung Shin, Hongik Univ. (Korea, Republic of)

Published in SPIE Proceedings Vol. 7599:
Organic Photonic Materials and Devices XII
Robert L. Nelson; François Kajzar; Toshikuni Kaino, Editor(s)

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