Results 251 to 260 of about 124,149 (292)
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High transmittance of a twisted-vertical aligned liquid crystal display
Journal of Applied Physics, 2010A high transmittance continuum domain twisted-vertical alignment (CDTVA) liquid crystal display (LCD) without domain walls defect and complex fabrication process has been developed. The CDTVA mode has no optical schlieren pattern occurring in the TVA cell.
Cheng-Chung Peng +5 more
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Stability Improvement of a Twisted-Vertical Aligned Nematic Liquid Crystal Cell
Japanese Journal of Applied Physics, 2011A patterned twisted-vertical aligned (PTVA) nematic liquid crystal cell with an indium–tin-oxide (ITO) electrode that is patterned with a fine slit and hole is demonstrated to exhibit excellent electro-optical characteristics of high transmittance with stable liquid crystal orientation.
Cheng-Chung Peng +3 more
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Fast-switching chiral nematic liquid-crystal mode with polymer-sustained twisted vertical alignment
Physical Review E, 2017We demonstrate a fast-switching liquid-crystal mode with polymer-sustained twisted vertical alignment. By optimizing the polymerization condition, a polymer microstructure with controlled orientation is produced. The polymer microstructure not only synergistically suppresses the optical bounce during field-induced homeotropic-twist transition but also ...
Kai-Han, Chang +2 more
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Wide-viewing angle twisted-vertical alignment liquid crystal cells without disclination lines
Displays, 2010A wide-viewing angle twisted-vertical alignment (TVA) liquid crystal display without appearance of disclination lines inside the display area of each pixel has been developed. With simple surrounding protrusion geometry, the liquid crystal molecules present axially symmetric orientation in each pixel when the voltage is applied and thus exhibit wide ...
Cheng-Chung Peng +5 more
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Viewing Angle Characteristics Using a Patterned Double-Twisted Vertical-Alignment Cell Mode
Japanese Journal of Applied Physics, 2000Viewing angle characteristics of a negative-type nematic liquid crystal (NLC) using a new patterned double-twisted (PDT) vertical-alignment (VA) cell mode without a negative compensation film on a homeotropic alignment layer were studied. Good voltage-transmittance curves were obtained.
Dae-Shik Seo, Jeoung-Yeon Hwang
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Blocks and Vertices of Twisted Group Algebras
1986Let F be an algebraically closed field of characteristic p>0 and let Q be a vertex of an irreducible FG-module V belonging to a block B of FG. Then a fundamental theorem of Knorr [3] asserts that one can choose the defect group D of B such that CD(Q) ⊆Q ⊆D. The aim of this paper is to extend this result to projective representations, i.e.
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Japanese Journal of Applied Physics, 1997
Two types of vertically aligned twisted nematic (VATN) liquid crystal (LC) cells in which a chiral nematic LC with negative dielectric anisotropy is used are proposed. In one type of the VATN cells, both substrate surfaces are treated by rubbing to obtain a slight tilt angle from the normal of each substrate, and in another one, only one ...
Taiju Takahashi Taiju Takahashi +2 more
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Two types of vertically aligned twisted nematic (VATN) liquid crystal (LC) cells in which a chiral nematic LC with negative dielectric anisotropy is used are proposed. In one type of the VATN cells, both substrate surfaces are treated by rubbing to obtain a slight tilt angle from the normal of each substrate, and in another one, only one ...
Taiju Takahashi Taiju Takahashi +2 more
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Twist-engineered tunability in vertical MoS2/MoSe2 heterostructure
Applied Physics A, 2022Saurav Sachin +4 more
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ON THE USE OF DUAL REGGEON VERTICES FOR UNTWISTED AND TWISTED SCALAR FIELDS
International Journal of Modern Physics A, 1992We point out certain simplifying features in the calculation of higher genus multi-Reggeon vertices for the (untwisted) bosonic string which appear when using the dual Reggeon vertex instead of the standard three vertex. In the case of twisted scalar fields we show that the form of the twisted (one-particle) emission vertex recently discussed by ...
NICLAS ENGBERG +2 more
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Optimal flapping wing for maximum vertical aerodynamic force in hover: twisted or flat?
Bioinspiration & Biomimetics, 2016This work presents a parametric study, using the unsteady blade element theory, to investigate the role of twist in a hovering flapping wing. For the investigation, a flapping-wing system was developed to create a wing motion of large flapping amplitude.
Hoang Vu, Phan +3 more
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