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Proceedings Paper

Molecular size effect of additives on the electro-optical properties of eutectic liquid crystal mixtures
Author(s): Yong-il Cho; Cecile Schott; Harry James Coles
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Paper Abstract

The application of the Liquid Crystal Display (LCD) to TV application needs faster response time to reduce trailing effect of moving picture. Due to the strong anchoring energy of liquid crystals on the alignment layer, the overall response time is increased. Therefore the control of the anchoring strength of the Liquid Crystals at the surface layer in display device could improve the response time of LCD. From the previous research of various kinds of hydroxyl functional perfluorinated additives [1], we chose the monohydroxylated additives for further study. In this research the effects of degree of fluorination in additives on the performance of Liquid Crystal Displays were investigated for the structure-property relationship with respect to weak anchoring property. The overall electro-optical and physical properties were measured to determine the role of the additive in Liquid Crystal mixtures. The molecular structure of the additive was changed to impose different polarity and interaction with the Liquid Crystal and alignment layer. The additives reduced the operating voltage of host liquid crystal materials and produced a slippery surface without any phase separation.

Paper Details

Date Published: 12 April 2005
PDF: 8 pages
Proc. SPIE 5741, Emerging Liquid Crystal Technologies, (12 April 2005); doi: 10.1117/12.593094
Show Author Affiliations
Yong-il Cho, Univ. of Cambridge (United Kingdom)
Cecile Schott, Merck NB-C Ltd. (United Kingdom)
Harry James Coles, Univ. of Cambridge (United Kingdom)


Published in SPIE Proceedings Vol. 5741:
Emerging Liquid Crystal Technologies
Liang-Chy Chien, Editor(s)

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