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Ultra‐FFS TFT‐LCD with super image quality, fast response time, and strong pressure‐resistant characteristics
Author(s) -
Lee Seung Hee,
Kim Hyang Yul,
Lee Seung Min,
Hong Seung Ho,
Kim Jin Mahn,
Koh Jai Wan,
Lee Jung Yeal,
Park Hae Sung
Publication year - 2002
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1889/1.1827852
Subject(s) - liquid crystal display , thin film transistor , materials science , transmittance , response time , liquid crystal , optoelectronics , contrast ratio , anisotropy , optics , transistor , computer science , electrical engineering , physics , nanotechnology , computer graphics (images) , voltage , layer (electronics) , engineering
Abstract— Fringe‐field‐switching (FFS) devices using liquid‐crystal (LC) with a negative dielectric anisotropy exhibit high transmittance and wide viewing angle simultaneously. Recently, we have developed an “Ultra‐FFS” thin‐film‐transistor (TFT) LCD using LC with a positive dielectric anisotropy that exhibits high transmittance, is color‐shift free, has a high‐contrast ratio in a wide range, experiences no crosstalk and has a fast response time of 25 msec. In this paper, the device concept is discussed, and, in addition, the pressure‐resistant characteristics of the devices compared with that of the twisted‐nematic (TN) LCD is discussed.