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Proceedings Paper

Multi-domain liquid crystal alignment based on periodical polyimide micro-bars fabricated by inkjet printing
Author(s): Jeoung-Yeon Hwang; Liang-Chy Chien
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Paper Abstract

We report a method for the preparation of multi-domain liquid crystal (LC) alignment layers on polyimide (PI) surfaces using inkjet printed micro-bars. The substrates of PI alignment films with micro-bars are assembled in crossed fashion to form a two-dimensional lattice to enable a fringe-field-like structure and thus, the multi-domain LC alignment. A LC cell with twisted nematic (TN) and electrically-controlled birefringence (ECB) domains can be obtained when the cells are assembled according to the printing directions of the printed PI layers. Electro-optical properties of such cells are studied. The obtained multi-domain structures can be used to improve the viewing angle of TN displays.

Paper Details

Date Published: 12 February 2010
PDF: 7 pages
Proc. SPIE 7618, Emerging Liquid Crystal Technologies V, 76181A (12 February 2010); doi: 10.1117/12.846848
Show Author Affiliations
Jeoung-Yeon Hwang, Kent State Univ. (United States)
Liang-Chy Chien, Kent State Univ. (United States)

Published in SPIE Proceedings Vol. 7618:
Emerging Liquid Crystal Technologies V
Liang-Chy Chien, Editor(s)

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