Effective Rotational Viscosity of Vertical Alignment Nematic Liquid Crystal Cells

被引：0

作者：

Iwata, Yosuke ^{[1
]}

Naito, Hiroyoshi ^{[1
,2
]}

Ichinose, Hideo ^{[3
]}

Klasen-Memmer, Melanie ^{[4
]}

Tarumi, Kazuaki ^{[4
]}

机构：

[1] Osaka Prefecture Univ, Dept Phys & Elect, Sakai, Osaka 5998531, Japan

[2] Osaka Prefecture Univ, Res Inst Mol Elect Devices, Sakai, Osaka 5998531, Japan

[3] Merck Ltd, Liquid Crystals Div, Kanagawa, Japan

[4] Merck KGaA, Liquid Crystals Div, Darmstadt, Germany

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2010年 / 516卷

关键词：

Effective rotational viscosity; flow effects; negative dielectric anisotropy; nematic liquid crystal; vertical alignment; NEGATIVE DIELECTRIC ANISOTROPY; TRANSIENT CURRENT; FLUIDS;

D O I：

10.1080/15421400903409432

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An effective rotational viscosity of vertical alignment (homeotropic) nematic liquid crystal (NLC) cells with negative dielectric anisotropy is derived from a theory of NLCs in which flow effects under the free-slip boundary condition are taken into account. The effective rotational viscosity is a function of the Leslie viscosity coefficients and is much smaller than the rotational viscosity at the initial stage of the director reorientation induced by external electric field to the NLC cells. This is the origin of fast response of vertical alignment of NLC cells.

引用

页码：228 / 232

页数：5

共 50 条

[31] Mesoscopic model of nematic liquid crystal viscosity
Chrzanowska, A
Kröger, M
Muschik, W
Papenfuss, C
Ehrentraut, H
Sellers, S
SLOW DYNAMICS IN COMPLEX SYSTEMS, 1999, 469 : 162 - 163
[32] ANOMALOUS ALIGNMENT AND DOMAINS IN A NEMATIC LIQUID CRYSTAL
PARKER, JH
CARR, EF
JOURNAL OF CHEMICAL PHYSICS, 1971, 55 (04): : 1846 - &
[33] NEMATIC LIQUID CRYSTAL ALIGNMENT ON NANOPOROUS FILMS
Dadivanyan, A. K.
Belyaev, V. V.
Chausov, D. N.
Smirnov, A. G.
Stepanov, A. A.
Kurilov, A. D.
Satskevich, Ya. V.
LIQUID CRYSTALS AND THEIR APPLICATION, 2013, (04): : 81 - 86
[34] ALIGNMENT OF MOLECULES IN NEMATIC LIQUID CRYSTAL STATE
DREYER, JF
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1969, (SEP): : CO75 - &
[35] ANOMALOUS ALIGNMENT AND DOMAINS IN A NEMATIC LIQUID CRYSTAL
PARKER, JH
CARR, EF
BULLETIN OF THE AMERICAN PHYSICAL SOCIETY, 1971, 16 (03): : 332 - &
[36] Nematic liquid crystal alignment on chemical patterns
Bramble, J. P.
Evans, S. D.
Henderson, J. R.
Anquetil, C.
Cleaver, D. J.
Smith, N. J.
LIQUID CRYSTALS, 2007, 34 (09) : 1059 - 1069
[37] METHOD FOR DETERMINATION OF ROTATIONAL VISCOSITY IN NEMATIC LIQUID-CRYSTALS
IMAI, M
NAITO, H
OKUDA, M
SUGIMURA, A
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1994, 33 (1B): : L119 - L121
[38] Determination of polar anchoring strength at vertical alignment nematic liquid crystal-wall interface using thin hybrid alignment nematic cell
Hung, LT
Oka, S
Kimura, M
Akahane, T
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 2004, 43 (5B): : L649 - L651
[39] Determination of polar anchoring strength at vertical alignment nematic liquid crystal-wall interface using thin hybrid alignment nematic cell
Hung, La Trong
Oka, Shinichirou
Kimura, Munehiro
Akahane, Tadashi
Japanese Journal of Applied Physics, Part 2: Letters, 2004, 43 (5 B):
[40] UNIVERSAL LAW FOR THE ROTATIONAL VISCOSITY OF NEMATIC LIQUID-CRYSTALS
SCHAD, H
ZELLER, HR
PHYSICAL REVIEW A, 1982, 26 (05): : 2940 - 2945

← 1 2 3 4 5 →