Single electro-optic curve for RGB colours in blue-phase liquid crystal display

Guo, Yuqiang; Li, Xiaoshuai; Mu, Qihui; Wang, Yifei; Zhang, Chi; Dou, Hu; Chu, Fan; Ma, Hongmei; Zhang, Hui; Wang, Qiong‐Hua; Sun, Yubao

doi:10.1080/02678292.2018.1530384

Cited by 8 publications

(5 citation statements)

References 64 publications

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“…The electric field energy density is the fourth term in Equation (2). When a voltage is applied to the liquid crystal cell, the energy density of the electric field is directly proportional to the square of the cosine of angle (π/2−θ) between n^and the zaxis, because the direction of the applied electric field is parallel to the z-axis.…”

Section: Theorymentioning

confidence: 99%

“…We divide the total free energy density into elastic and electric field energy densities. Of the two, the elastic energy density involves the first three terms of Equation (2). Further, we consider the elastic coefficients to be the same and approximately constant (the one-constant approximation), that is, k = (k 11 +k 22 +k 33 )/ 3 = k 11 = k 22 = k 33 .…”

Section: Theorymentioning

confidence: 99%

“…Liquid crystal displays (LCDs) have become an important part of many industries owing to their compactness, power‐saving capabilities, colour display, and other advantages [1, 2]. A practical LCD product must have a fast response time, low operating voltage, high resolution, wide viewing angle, high‐definition display resolution, and greyscale display ability.…”

Section: Introductionmentioning

confidence: 99%

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Simulation of a blue‐phase liquid crystal cell using a multi‐angle director model

Yang

Chang

Chen

et al. 2021

IET Optoelectronics

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A multi-angle director model is proposed to simulate and interpret the electro-optical characteristics of a blue-phase liquid crystal (BPLC) cell driven by vertical and horizontal electric fields. Instead of employing the Kerr effect, the BPLC cell is considered as a stack of several high-pretilt nematic liquid crystal layers that can be simulated using the director model. Simulations are performed based on the director model and results are compared with those obtained with Kerr-effect-based methods. The theoretical model successfully simulated the electro-optical characteristics of the BPLC, consistent with experimental data. Hence, the model is expected to aid the design of next-generation BPLC displays.This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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Section: Theorymentioning

confidence: 99%

Section: Theorymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Simulation of a blue‐phase liquid crystal cell using a multi‐angle director model

Yang

Chang

Chen

et al. 2021

IET Optoelectronics

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“…The commercial simulation software, TechWiz LCD 3D (Sanayi System Co., Ltd, Incheon, Korea), is used to simulate the electro-optical characteristics based on the extended Jones matrix [51]. The electro-optical properties of IPS-BPLCD could be calculated under various viewing angles [13,[52][53][54].…”

Section: Device Structure and Theorymentioning

confidence: 99%

“…However, there are still some issues for IPS-BPLCD. The primary challenge of IPS-BPLCD is the high operating voltage (>50 V), which restricts its further development [13,14]. Besides, low operating voltage is propitious to achieve low hysteresis, low residual birefringence and fast storage capacitance charging [4,15].…”

Section: Introductionmentioning

confidence: 99%

Reduced off-axis gamma shift of liquid crystal display by intercepting transmittance method

Guo

et al. 2020

J. Phys. D: Appl. Phys.

Self Cite

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Generally, the brightness and color of one image on a large-area flat panel display are different when people watch a display image under different viewing angles. The gamma shift is used to evaluate the difference of electro-optical performances under different viewing angles, namely the gray-scale display distortion. In order to reduce the gamma shift under the oblique viewing angle, the intercepting transmittance method is proposed and illustrated based on the single-domain in-plane switching blue-phase liquid crystal display (IPS-BPLCD). The results show that the off-axis image distortion index (the quantitative evaluation index of gamma shift) can be reduced by ~72% if the transmittance ratio reduces from 100% to 80% for the IPS-BPLCD with a straight electrode structure. Moreover, the zigzag electrode structure is used as the reference to illustrate the merits of the proposed method. As a result, the operating voltage of the IPS-BPLCD can be reduced by >20%, and the off-axis image distortion index is reduced by ~47% compared with the zigzag electrode structure. Besides this, the effects of the proposed method on contrast ratio, operating voltage and color difference of IPS-BPLCD are investigated as well. In fact, the proposed method is also useful for other LCD modes and electro-optical devices to achieve wide and uniform viewing angles.

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Fabrication of high-transmittance and fast-response bistable dual-frequency CLC cells

Hung¹,

Chang²,

Chiu³

et al. 2023

Journal of the Taiwan Institute of Chemical Engineers

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Single electro-optic curve for RGB colours in blue-phase liquid crystal display

Cited by 8 publications

References 64 publications

Simulation of a blue‐phase liquid crystal cell using a multi‐angle director model

Simulation of a blue‐phase liquid crystal cell using a multi‐angle director model

Reduced off-axis gamma shift of liquid crystal display by intercepting transmittance method

Fabrication of high-transmittance and fast-response bistable dual-frequency CLC cells

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