Pretile angle control of liquid crystal from homogeneous to homeotropic using photocurable prepolymer

Jeong-Hun Lee; Daeseung Kang

doi:10.1117/12.909600

10 February 2012 Pretile angle control of liquid crystal from homogeneous to homeotropic using photocurable prepolymer

Jeong-Hun Lee, Daeseung Kang

Proceedings Volume 8279, Emerging Liquid Crystal Technologies VII; 827919 (2012) https://doi.org/10.1117/12.909600
Event: SPIE OPTO, 2012, San Francisco, California, United States

Abstract

We study pretilt angle control of liquid crystal from homogeneous to homeotropic using phase separation techniques of photocurable prepolymer by UV irradiation. Pretilt angle was controlled by changing the weight ratio of LC/photocurable prepolymer in homogeneous polyimide (PI) coated LC cell. Homogeneous alignment was observed in LC/photocurable prepolymer mixture of weight ratio of 99.9:0.1 after UV irradiation for 20 minutes. Tilted alignment was observed in weight ratio of 99.8:0.2. Finally homeotropic alignment was observed in weight ratio of over 99.7:0.3.

Citation Download Citation

Jeong-Hun Lee and Daeseung Kang "Pretile angle control of liquid crystal from homogeneous to homeotropic using photocurable prepolymer", Proc. SPIE 8279, Emerging Liquid Crystal Technologies VII, 827919 (10 February 2012); https://doi.org/10.1117/12.909600

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