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    ASIA unversity > 資訊學院 > 資訊工程學系 > 期刊論文 >  Item 310904400/18664


    Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/18664


    Title: Improved liquid crystal pretilt angles by patterned dual alignment coating structures
    Authors: 陳兆南;Chen, Chao-Nan
    Contributors: 資訊工程學系
    Date: 2010-07
    Issue Date: 2012-11-26 13:56:43 (UTC+8)
    Abstract: The pretilt angles for the optically compensated bend (OCB) mode liquid crystals have been improved using novel patterned dual alignment coating structures in this study. The transition from the splay configuration to the bend configuration can thus be effectively reduced. The dual alignment coating structures consisted of a horizontal alignment polyimide (PI) and a patterned vertical alignment liquid crystal polymer (LCP). Three patterning masks were designed for the photolithography process. The pretilt angles were demonstrated to be increased to 34 degrees for the triangle lattice array-patterned cells. It became 31 degrees for the square lattice array-patterned cells, and 24 degrees for the honeycomb lattice array-patterned cells. The improved pretilt angles were illustrated by the force balance model that can be predicted by the LCP area ratio. The effective control over the pretilt angle could improve the response time to 2 ms when the voltage was ramped up to 5.5 V for the OCB mode liquid crystal devices.
    Relation: JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY;10(7):4592-5.
    Appears in Collections:[資訊工程學系] 期刊論文

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