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

Suyoung Kim; Sung Eui Shin; DongMyung Shin

doi:10.1117/12.841652

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1 March 2010 Anchoring energy of photo-sensitive polyimide alignment film containing methoxy cinnamate

Suyoung Kim, Sung Eui Shin, DongMyung Shin

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Proceedings Volume 7599, Organic Photonic Materials and Devices XII; 75991L (2010) https://doi.org/10.1117/12.841652
Event: SPIE OPTO, 2010, San Francisco, California, United States

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.

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Suyoung Kim, Sung Eui Shin, and DongMyung Shin "Anchoring energy of photo-sensitive polyimide alignment film containing methoxy cinnamate", Proc. SPIE 7599, Organic Photonic Materials and Devices XII, 75991L (1 March 2010); https://doi.org/10.1117/12.841652

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