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Proceedings Paper

Wide temperature range blue phase liquid crystals for displays
Author(s): Jeoung-Yeon Hwang; Jie Xiang; Shin-Ying Lu; Liang-Chy Chien
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Paper Abstract

We report wide temperature range blue phase liquid crystals for display applications. Systematical analysis of the relationship of dielectric anisotropy value (Δε) and the blue phase liquid crystal (BPLC) temperature range shows that the BP temperature range increases as the Δε decrease. Additionally, we also find that as the chiral concentration of the blue phase increases, the BP temperature range decreases. The studied BPLCs also exhibit fast response time of 400 μs using IPS cells with a fixed cell gap and electrode line and space of 10 μm. These results can be explained based on the defect theory and would give effective guidance during the application of BPLC. Detailed physical, optical, dielectric and electro-optical study will be presented.

Paper Details

Date Published: 2 February 2011
PDF: 8 pages
Proc. SPIE 7955, Emerging Liquid Crystal Technologies VI, 79550H (2 February 2011); doi: 10.1117/12.877928
Show Author Affiliations
Jeoung-Yeon Hwang, Kent State Univ. (United States)
Jie Xiang, Kent State Univ. (United States)
Shin-Ying Lu, Kent State Univ. (United States)
Liang-Chy Chien, Kent State Univ. (United States)

Published in SPIE Proceedings Vol. 7955:
Emerging Liquid Crystal Technologies VI
Liang-Chy Chien; Hiroshi Yokoyama, Editor(s)

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