Field induced UV-alignment method for a zero pre-tilt liquid crystal cell

Seung-Won Oh; Jun-Hee Park; Tae-Hoon Yoon

doi:10.1117/12.2235988

23 September 2016 Field induced UV-alignment method for a zero pre-tilt liquid crystal cell

Seung-Won Oh, Jun-Hee Park, Tae-Hoon Yoon

Proceedings Volume 9940, Liquid Crystals XX; 99401E (2016) https://doi.org/10.1117/12.2235988
Event: SPIE Organic Photonics + Electronics, 2016, San Diego, California, United States

Abstract

Recently, photo-alignment technology has been the focus of research efforts because lowering the pre-tilt angle is essential for complete elimination of the off-axis light leakage. However, even though photo-alignment can provide zero pre-tilt angle, it has not yet been widely applied in mass production because of its weak surface anchoring, high curing energy, and strong image sticking. In this paper, we demonstrate that the zero pre-tilt angle can be obtained by employing the field-induced UV-alignment method. We have shown electro-optical characteristics and parameters related to the image quality of a fringe-field switching cell fabricated using the proposed method as functions of the monomer concentration and the UV irradiation time.

Citation Download Citation

Seung-Won Oh, Jun-Hee Park, and Tae-Hoon Yoon "Field induced UV-alignment method for a zero pre-tilt liquid crystal cell", Proc. SPIE 9940, Liquid Crystals XX, 99401E (23 September 2016); https://doi.org/10.1117/12.2235988

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