Multi-domain liquid crystal alignment based on periodical polyimide micro-bars fabricated by inkjet printing

Jeoung-Yeon Hwang; Liang-Chy Chien

doi:10.1117/12.846848

12 February 2010 Multi-domain liquid crystal alignment based on periodical polyimide micro-bars fabricated by inkjet printing

Jeoung-Yeon Hwang, Liang-Chy Chien

Author Affiliations +

Proceedings Volume 7618, Emerging Liquid Crystal Technologies V; 76181A (2010) https://doi.org/10.1117/12.846848
Event: SPIE OPTO, 2010, San Francisco, California, United States

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.

Citation Download Citation

Jeoung-Yeon Hwang and Liang-Chy Chien "Multi-domain liquid crystal alignment based on periodical polyimide micro-bars fabricated by inkjet printing", Proc. SPIE 7618, Emerging Liquid Crystal Technologies V, 76181A (12 February 2010); https://doi.org/10.1117/12.846848

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