«liquid crystal device»
۴۱۷۲ نتیجهHybrid anchoring for a color-reflective dual- frequency cholesteric liquid crystal device switched by low voltages
Cholesteric liquid crystal (CLC) materials used in electro-optical (EO) devices are characterized by high operating voltage and slow response speed, which hinders their further development in display applications. Dual-frequency CLCs (DFCLCs) can solve the problem of slow bistabl
Switching hydrodynamics in multi - domain , twisted nematic , liquid crystal devices
– We study the switching dynamics in two-domain and four-domain twisted nematic liquid crystal devices. The equilibrium configuration of these devices involves the coexistence of regions characterised by different handedness of the inherent director twist. At the boundaries betwe
The Ion Capturing Effect of 5 Degrees Siox Alignment Films in Liquid Crystal Devices
We show that SiO x , deposited at 5° to the interior surface of a liquid crystal cell allows for a surprisingly substantial reduction in the ion concentration of liquid crystal devices. We have investigated this effect and found that this type of film, due to its surface morpholo
Transition Metal Dithiolene Near-IR Dyes and Their Applications in Liquid Crystal Devices
LLE Review, Volume 106 112 Introduction The development of an ideal series of dyes for liquid crystal (LC) device applications represents a formidable synthesis challenge for chemists. To be considered useful for applications in LC devices, the class of dyes under consideration m
Analysis of the Multireflection Effects in Compensated Liquid Crystal Devices
The effect of multiple internal reflections on the extinction ratio of perfectly compensated liquid crystal devices is studied. We find the previously unexplained wavelength dependence of light leakage in an ideally compensated device is caused by the interference of the internal
Biomedical Optical Applications of Liquid Crystal Devices
Liquid crystals exhibit large electro-optic effects which make them useful for a variety of applications as fast, compact, and tunable spectral filters, phase modulators, polarization controllers, and optical shutters. They were largely developed for liquid crystal displays and i
Effect of material properties on reverse flow in nematic liquid crystal devices with homeotropic alignment
Reverse flow is undesirable in liquid crystal devices with vertical alignment. The influence of the material properties on the onset of backflow is investigated for commercially available negative dielectric liquid crystals. It is shown that the threshold voltage VBF for the occu
Switching hydrodynamics in liquid crystal devices: a simulation perspective.
In liquid crystal devices it is important to understand the physics underlying their switching between different states, which is usually achieved by applying or removing an electric field. Flow is known to be a key determinant of the timescales and pathways of the switching kine
Transflective device with a transparent organic light-emitting diode and a reflective liquid-crystal device
Tien-Lung Chiu (SID Student Member) Haiqing Xianyu (SID Member) Zhibing Ge Jiun-Haw Lee (SID Member) Kou-Chen Liu Shin-Tson Wu (SID Fellow) Abstract — A high-transmittance transflective device based on a hybrid structure consisting of a transparent organic light-emitting diode (O
Highly photorefractive hybrid liquid crystal device for a video-rate holographic display.
In this paper, we demonstrate a dynamic holographic display in a quantum dot (ZnS/InP) doped liquid crystal device, where one of the interior cell surfaces is covered by a ZnSe layer. Such a hybrid device shows substantially improved photorefractive sensitivity of 2.2 cm 3 /J, wh