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http://dx.doi.org/10.4313/JKEM.2004.17.11.1234

Study on Electro-optic Characteristics and Dynamic Stability Depending on the Pretilt Angle for the Twisted Nematic(TN) and Fringe-field Switching(FFS) Mode  

Kim, M.S. (전북대학교 신소재공학부, BOE-HYDIS TECHNOLOGY 개발 8그룹)
Jung, Y.H. (BOE-HYDIS TECHNOLOGY 개발 8그룹)
Kim, H.Y. (전북대학교 신소재공학부, BOE-HYDIS TECHNOLOGY 개발 8그룹)
Kim, S.Y. (BOE-HYDIS TECHNOLOGY 개발 8그룹)
Lee, S.H. (전북대학교 신소재공학부)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.17, no.11, 2004 , pp. 1234-1240 More about this Journal
Abstract
We studied on the electro-optic characteristics and dynamic stability according to an undesirably defined pretilt angle induced in high step coverage of pixel area for the Twisted Nematic (TN) / Fringe-Field Switching (FFS) mode. In case of the TN mode, LC directors twist reversely near the edges of thin-film-transistor and black matrix where the pretilt angle of the LC is not well defined. Therefore, the voltage-dependent dynamics of the LC in TN mode is unstable and shows the bad electro-optic characteristics. On the other hand, in case of the FFS mode, the LCs are twisted parallel to the bottom substrate by fringe electric field and the electro-optic characteristic is not influenced by the pretilt angle of the LC which is not well defined.
Keywords
Pretilt angle; Fringe-field switching; Twisted nematic;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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