Title

Blue phase liquid crystals stabilized by linear photo-polymerization

Authors

Authors

D. M. Xu; J. M. Yuan; M. Schadt;S. T. Wu

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

Appl. Phys. Lett.

Keywords

RESPONSE-TIME; TEMPERATURE; HYSTERESIS; FIELD; DISPLAYS; COLOR; LCDS; Physics, Applied

Abstract

Stabilizing a photopolymer-embedded blue phase liquid crystal precursor with linearly polarized UV light is investigated experimentally. When the UV polarization axis is perpendicular to the stripe electrodes of an in-plane-switching cell, anisotropic polymer networks are formed through the linear photo-polymerization process and the electrostriction effect is suppressed. As a result, the measured hysteresis is dramatically reduced from 6.95% to 0.36% and the response time shortened by similar to 2x compared to unpolarized UV exposure. To induce larger anisotropy in polymer networks for mitigating the electrostriction effect, high-intensity linearly polarized UV exposure is preferred. (C) 2014 AIP Publishing LLC.

Journal Title

Applied Physics Letters

Volume

105

Issue/Number

8

Publication Date

1-1-2014

Document Type

Article

Language

English

First Page

5

WOS Identifier

WOS:000342753500015

ISSN

0003-6951

Share

COinS