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Proceedings Paper

Fast switching of vertically aligned nematic liquid crystals by two-dimensional confinement with virtual walls
Author(s): Tae-Hoon Yoon; Tae-Hoon Choi; Yeongyu Choi; Jae-Hyeon Woo; Byoung-Gyu Jeon
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Paper Abstract

We introduce a simple method for fast switching of vertically-aligned nematic liquid crystals (LCs). When an electric field is applied to a patterned vertical alignment (PVA) LC cell, virtual walls are formed in the middle of the gaps between and at the center of the patterned electrodes. These virtual walls formed in a PVA cell results in the turn-off time being dependent on the pitch of the patterned electrodes as well as the cell gap. Therefore, a short response time can be achieved by fine patterning of pixel electrodes without requiring additional fabrication steps or complicated drive schemes. A similar behavior has been observed in switching of vertically-aligned LCs with positive dielectric anisotropy by an in-plane electric field.

Paper Details

Date Published: 19 February 2018
PDF: 8 pages
Proc. SPIE 10556, Advances in Display Technologies VIII, 1055607 (19 February 2018);
Show Author Affiliations
Tae-Hoon Yoon, Pusan National Univ. (Korea, Republic of)
Tae-Hoon Choi, Pusan National Univ. (Korea, Republic of)
Yeongyu Choi, Pusan National Univ. (Korea, Republic of)
Jae-Hyeon Woo, Pusan National Univ. (Korea, Republic of)
Byoung-Gyu Jeon, Pusan National Univ. (Korea, Republic of)

Published in SPIE Proceedings Vol. 10556:
Advances in Display Technologies VIII
Liang-Chy Chien; Tae-Hoon Yoon; Qiong-Hua Wang, Editor(s)

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