Presentation 1994/11/11
Molecular Alignment of Liquid Crystal on Rubbed Polymer Alignment Layer(2)
Kwan Young Han, Tatsuo Uchida,
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Abstract(in English) Liquid crystal molecules on a rubbed polymer alignment layer are oriented at some polar angle away from the surface.This so-called pretilt angle is an important parameter which determines the electro-optical properties of liquid crystal devices.Therefore,it is necessity to study generation of pretilt angle and its stability.Several researchers have been studying on this problem but the physical mechanism is not thoroughly understood.Therefore, we have investigated LC pretilt angle and polymer inclination angle and the effect of heat treatment on these angles.We also studied the pretilt changes by the heat treatment using various LC materials to clarify the reason of the heat treatment dependence of a pretilt angle.From these results we discuss the mechanism of change in LC pretilt bythe heat treatment.
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Keyword(in English) liquid crystal / molecular alignment / pretilt angle / temperature dependence / heat treatment
Paper # EID94-87,OME94-69
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Committee EID
Conference Date 1994/11/11(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Molecular Alignment of Liquid Crystal on Rubbed Polymer Alignment Layer(2)
Sub Title (in English)
Keyword(1) liquid crystal
Keyword(2) molecular alignment
Keyword(3) pretilt angle
Keyword(4) temperature dependence
Keyword(5) heat treatment
1st Author's Name Kwan Young Han
1st Author's Affiliation Department of Electronic Engineering,Faculty of Engineering,Tohoku University()
2nd Author's Name Tatsuo Uchida
2nd Author's Affiliation Department of Electronic Engineering,Faculty of Engineering,Tohoku University
Date 1994/11/11
Paper # EID94-87,OME94-69
Volume (vol) vol.94
Number (no) 327
Page pp.pp.-
#Pages 6
Date of Issue