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P‐213L: Late‐News Poster : Optimization of High‐Aperture‐Ratio Fringe‐Field‐Switching Pressure‐Resistance Characteristic for Touch‐Screen Display
Author(s) -
Lim Junhwan,
Zhang Zunrui,
Yang Falu,
Zuo Xiongcan,
Yang Ruizhi,
Ko Youngyik,
Jung Heechul
Publication year - 2011
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.3621192
Subject(s) - rubbing , liquid crystal display , materials science , electrode , viscosity , optics , aperture (computer memory) , trace (psycholinguistics) , pixel , rotational viscosity , liquid crystal , optoelectronics , computer science , acoustics , composite material , chemistry , physics , linguistics , philosophy
Currently, smart phone and table pc like I phone and I pad with touch pad are main trend in the mobile market. Using touch pad, display image is distorted by external pressure with touch pen and fingers. Because such defects, improvement of pressure resistant characteristic by external pressure (Trace mura) is became more important factor. To solve the problem, we studied pressure resistant characteristic by rubbing uniformity, alignment anchoring force, rotational viscosity of liquid crystal and pixel electrode length of domain structure. Through these experiment results, we have found the design of improving pressure resistant characteristic (Trace mura). Low rotational viscosity of liquid crystal shows stronger pressure resistant characteristic than high rotational viscosity of liquid crystal and as the length of pixel electrode is shorter, pressure resistant characteristic (Trace mura) is good. It is much advantageous for touch pad display field.