Molecular size effect of additives on the electro-optical properties of eutectic liquid crystal mixtures

Yong-il Cho; Cecile Schott; Harry James Coles

doi:10.1117/12.593094

12 April 2005 Molecular size effect of additives on the electro-optical properties of eutectic liquid crystal mixtures

Yong-il Cho, Cecile Schott, Harry James Coles

Proceedings Volume 5741, Emerging Liquid Crystal Technologies; (2005) https://doi.org/10.1117/12.593094
Event: Integrated Optoelectronic Devices 2005, 2005, San Jose, California, United States

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.

Citation Download Citation

Yong-il Cho, Cecile Schott, and Harry James Coles "Molecular size effect of additives on the electro-optical properties of eutectic liquid crystal mixtures", Proc. SPIE 5741, Emerging Liquid Crystal Technologies, (12 April 2005); https://doi.org/10.1117/12.593094

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