Field effects in nematic liquid crystals obtained with interdigital electrodes

Soref, Richard A.

doi:10.1063/1.1663263

Cited by 142 publications

(60 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Such a shortage causes narrow viewing angle and asymmetric transmittance, especially along the vertical directions. To overcome the problems, it is in-plane-switching (IPS) technique that was proposed in 1970s by Soref et al [24,25]. IPS mode is, in brief, a driving scheme by a fringing electric field, which keeps the directors of LCs lying parallel to the surface of substrates during the treatment of electrical driving.…”

Section: Emerging Technologymentioning

confidence: 99%

Liquid Crystal Display—Present Status and Emerging Technology

Cheng

2014

Topics in Applied Physics

View full text Add to dashboard Cite

Nowadays, in your daily lives, the applications of LCs, such as LCD TVs, computer/laptop monitors, mobile phones, navigators, digital cameras, and so on, are widely used worldwide. Even, wherever you are whatever you do, you can take your electronics out of your pocket to check your e-mails, listen to music, watch movies, find your way, and so many others. LCDs provide high performance in regard to the weight, volume, contrast ratio, viewing angle, low power consumption, etc. That's why the high-quality applications of LCDs are indispensable and paid much attention by scientists and electronics industries in the recent decade. Undoubtedly, LCDs have acted as a leader in the field of flat panel displays, in not only small-sized displays, but also large-sized ones. Refer to cathode ray tube (CRT) monitors; LCDs have almost completely replaced CRT monitors in the display market because of their bulky and high power consumption, despite their good response time, viewing angle, image quality. However, in addition to the present status of LCD applications, some emerging technologies, such as wide viewing angle displays, fast response displays, blue phase LCDs, flexible displays, 3D displays, high resolution displays, in-cell touch panel, electronic papers, tablets, etc., have also attracted much attention. In this chapter, the introductions of the present status of LCD industry, as well as the emerging technology for improving the performances of LCDs will be given. Liquid Crystal Display ModesRegarding the commercial products of LCDs [1-3], their operating principles for modulating light intensity and/or light polarization include polarization

show abstract

Section: Emerging Technologymentioning

confidence: 99%

Liquid Crystal Display—Present Status and Emerging Technology

Cheng

2014

Topics in Applied Physics

View full text Add to dashboard Cite

show abstract

“…Spontaneously, many liquid crystal (LC) modes have been proposed, such as in-plane switching (IPS) [1,2], fringing field switching (FFS) [3][4][5], and vertical -alignment (VA) modes [6,7]. Among these modes, the VA mode has been widely used in LCD television (TV), due to its advantageous electro-optic properties, such as fast response time and high contrast ratio in the normal direction.…”

Section: Introductionmentioning

confidence: 99%

Reduction of Gamma Distortion in Oblique Viewing Directions in Polymer-stabilized Vertical Alignment Liquid Crystal Mode

김효중¹,

Lim²,

Murali³

et al. 2017

Current Optics and Photonics

View full text Add to dashboard Cite

In large liquid crystal displays, the image quality in an oblique viewing direction is a crucial issue. From this perspective, 8-domain polymer-stabilized vertical alignment (PS-VA) mode has been developed to suppress the color shift in oblique viewing directions, compared to that in 4-domain PS-VA mode. To realize the 8-domain PS-VA, the four domains in a pixel are each divided into two regions, such that applying different electric potentials result in different tilt angles in these two regions, while keeping four azimuthal directions in each domain. However, applying different voltages in a pixel causes drawbacks, such as requiring additional processes to construct a capacitor and a transistor, which will further reduce the aperture ratio. Here we propose a different approach to form the 8-domain, by controlling surface polar anchoring energy and the width of patterned electrodes in two regions of a pixel. As a result, the gamma-distortion index (GDI), measured at an azimuthal angle of 0°, is reduced by about 23% and 8%, compared to that of a conventional 4-domain at polar angles of 30° and 60° respectively.

show abstract

“…However the liquid crystal response time in IPS, which does not have negative optical compensations film, still needs to be improved. In the other two modes: high quality uniaxial negative optical compensations films are desired to improve the optical performance of the black state and suppress the light leakage besides a multi-domain photo alignment in each pixel upon exposure to polarized UV can also be achieved in displays, which will provide the displays with improved wide viewing angles and less color shift [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Ultrasonic Measurements and Optical Retardation Studies on Liquid crystalline Materials

Govindaiah¹

2018

IJRASET

View full text Add to dashboard Cite

We report the results of our studies on optical and thermal properties of binary mixture of compounds, viz: voriconazole and ethylene glycol. The mixture exhibits a very interesting lyotropic induced polymorphism such as sma, smc, smc* and sme phases, sequentially when the specimen is cooled from its isotropic liquid phase. They were observed using microscopic technique and also been verified from the results of optical anisotropic techniques. Ultrasonic experimental studies have been carried out to understand the molecular self assembly of the above phases at higher and lower temperatures. Optical retardation has also been discussed.

show abstract

Field effects in nematic liquid crystals obtained with interdigital electrodes

Cited by 142 publications

References 5 publications

Liquid Crystal Display—Present Status and Emerging Technology

Liquid Crystal Display—Present Status and Emerging Technology

Reduction of Gamma Distortion in Oblique Viewing Directions in Polymer-stabilized Vertical Alignment Liquid Crystal Mode

Ultrasonic Measurements and Optical Retardation Studies on Liquid crystalline Materials

Contact Info

Product

Resources

About