Surface molecular alignment by in-plane anchoring in the cell showing the V-shaped switching

Seomun, San‐Seong; Vij, J. K.; Hayashi, Naoki; Kato, Tatsuhisa; Fukuda, Atsuo

doi:10.1063/1.1389770

Cited by 9 publications

(3 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Finally the domains in which the director n is parallel to r emerge in the sandwiched cell with increased usage time. 27 It seems to be due to the strong anchoring of the in-plane directors and thus deteriorates the stability of the molecular orientation. Therefore the Inui mixture cannot be readily put to practical use due to the problems outlined here.…”

Section: Discussionmentioning

confidence: 99%

Alignment instability caused by anchoring of the in-plane directors to the rubbing direction in the V-shaped switching

Seomun

Fukuda

et al. 2000

J. Mater. Chem.

Self Cite

View full text Add to dashboard Cite

In order to investigate the molecular alignment in the smectic liquid crystals showing the V-shaped switching behavior, two types of the liquid crystal cells, a sandwiched cell and an open cell, were prepared. Homogeneous alignment with the smectic layer normal formed at y12³ with respect to the rubbing direction r is obtained in the Sm-A phase in both cells. However, in the open cell, the director n is rotated towards r when the Sm-A sample is cooled into the tilted Sm-X* phase. In addition, its maximum rotation angle is y12³. In this con®guration, the molecules lie along r. Meanwhile, the sandwiched cell with the one-side rubbing treatment exhibits the averaged optical axis almost parallel to the layer normal in the Sm-X* phase. In this paper, a simple small-twisted state in the thin sandwiched cell is suggested to account for the experimental results.

show abstract

Section: Discussionmentioning

confidence: 99%

Alignment instability caused by anchoring of the in-plane directors to the rubbing direction in the V-shaped switching

Seomun

Fukuda

et al. 2000

J. Mater. Chem.

Self Cite

View full text Add to dashboard Cite

show abstract

“…The transmission profile ideally corresponds to a V, but it can deviate to a W because of factors such as waveform frequency, temperature, or alignment layer conditions [7]. In this study, frequency dependence in profile transmission was measured.…”

Section: Low-frequency Optical Responsementioning

confidence: 99%

Characterization protocol to evaluate chiral smectic liquid crystals for high-end display applications

et al. 2004

View full text Add to dashboard Cite

Abstract:A protocol based on systematic experimental measurements to characterize the electro-optic behavior of chiral smectic liquid-crystal (LC) materials with V/W-shaped responses is presented. An experimental smectic LC material has been checked by use of this protocol. It has been found that results derived from this procedure permit a reasonable evaluation of the electro-optic performance of these LC materials as well as their capability to be used in high-end display applications.

show abstract

“…where ¼ ' iþ1 À ' i is the azimuthal angle difference of the in-layer directors between adjacent layers and D and Q are constants for a constant in-layer director tilt angle. 5,6) The director helical structure completely unwound by the substrate plates coated with aligning polyimide film 7) and/or by a sufficiently low field inducing the net spontaneous polarization along it. 5,8) The anti-phase collective mode, the frequency of which is as high as 1 MHz or more, produces the net polarization together with a change in and causes the leakage transmittance given by…”

mentioning

confidence: 99%

Realization of Field Sequential Color in Simple Matrix Antiferroelectric Liquid Crystal Displays by Utilizing Fast Pretransitional Response

Suzuki¹,

Chen²,

Manna

et al. 2009

Appl. Phys. Express

View full text Add to dashboard Cite

Simple matrix antiferroelectric liquid crystal displays (SM-AFLCDs) are prototyped to realize field sequential color (FSC) by utilizing the fast pretransitional response. The developed FSC-SM-AFLCDs will lead to the replacement of existing static driven FSC-SM-nematic-LCDs. Bright and clear color can be given to already market-acquired, black-and-white SM-LCDs of up to 1/64-duty and 3-in. diagonal size. To optimize the display performance, we analyze two important factors, the large pretransitional effect and the appropriate reset pulse, in terms of the interlayer interaction potential used in describing the field-induced transition of the antiferroelectric smectic phase.

show abstract

Surface molecular alignment by in-plane anchoring in the cell showing the V-shaped switching

Cited by 9 publications

References 10 publications

Alignment instability caused by anchoring of the in-plane directors to the rubbing direction in the V-shaped switching

Alignment instability caused by anchoring of the in-plane directors to the rubbing direction in the V-shaped switching

Characterization protocol to evaluate chiral smectic liquid crystals for high-end display applications

Realization of Field Sequential Color in Simple Matrix Antiferroelectric Liquid Crystal Displays by Utilizing Fast Pretransitional Response

Contact Info

Product

Resources

About