Low-voltage and high-transmittance blue-phase liquid crystal display with concave electrode

Mao, Jiang-Lin; Wang, Jian; Fan, Hao‐Xiang; Wang, Qiong‐Hua

doi:10.1080/02678292.2015.1124466

Cited by 11 publications

(2 citation statements)

References 25 publications

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“…In terms of BPLC materials, it has been proved that BPLC materials with a large Kerr constant exhibit low operating voltage [17,18]. On the other hand, some optimized electrode structures with thicker horizontal electric field were put forward, such as protrusion electrodes [19][20][21][22][23], penetrating electrodes [24,25], dual-side electrodes [26] and special-shaped electrodes [27,28]. Usually, low-voltage and high-transmittance IPS-BPLCD can be achieved by combining high performance BPLC materials with optimized electrode structures.…”

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.

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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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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.

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“…Polymer-stabilized blue-phase liquid crystals (PS-BPLCs) [1][2][3][4][5] have unique advantages, such as sub-millisecond response time which offers the possibility to realize colorsequential displays using LEDs without noticeable color breakup, [6,7] an isotropic dark state which helps to achieve an inherently wide and a symmetric viewing angle, [8] and no need of alignment layer, [9] so they have aroused much interest of researchers. However, some drawbacks including high operating voltage, low transmittance, and hysteresis need to be improved.…”

Section: Introductionmentioning

confidence: 99%

Low voltage transflective blue-phase liquid crystal display with a non-uniform etching substrate

Wang¹,

Mao²,

Fan³

et al. 2016

Chinese Phys. B

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A transflective polymer-stabilized blue-phase liquid crystal display (BP-LCD) with a non-uniform etching substrate is proposed. In-plane switching (IPS) electrodes on the bottom substrate are put on the different gaps, and the bottom substrate between the electrodes is etched into different depths in transmissive (T) and reflective (R) regions. This structure can balance the optical phase retardation in the two regions and is helpful to achieve well-matched voltag-dependent transmittance and reflectance curves. This transflective display has high optical efficiency, a wide viewing angle, and low operating voltage (approximately 6 V).

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P‐149: Low‐voltage and High‐optical‐efficiency Blue‐Phase Transflective Liquid Crystal Displays using Step‐shaped Electrode

Hsieh

Choi

2019

Symp Digest of Tech Papers

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A step‐shaped electrode design is proposed for Polymer Stabilized Blue Phase (PSBP) Transflective LCD (TR‐LCD). This new electrode design is capable of delivering very high optical efficiency (both T and R) of > 95% with operation voltage of ∼ 13V (or > ∼ 90% with ∼ 9V). The step‐shaped electrode helps generate strong horizontal electric fields across the whole cell and suppress the formation of dead zone.

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Low-voltage and high-transmittance blue-phase liquid crystal display with concave electrode

Abstract: A low voltage blue-phase liquid crystal display (BPLCD) with concave electrodes is proposed. A low voltage ~9V can be achieved. Moreover , this BPLCD can obtain a symmetric and wide viewing angle of 1000:1, and the contrast ratio is over 60° viewing cone.

Cited by 11 publications

References 25 publications

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

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

Low voltage transflective blue-phase liquid crystal display with a non-uniform etching substrate

P‐149: Low‐voltage and High‐optical‐efficiency Blue‐Phase Transflective Liquid Crystal Displays using Step‐shaped Electrode

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