A 90° mixed-mode twisted nematic liquid-crystal-on-silicon with an insulating protrusion structure

doi:10.1088/1674-1056/abee0b

中国物理B ›› 2021, Vol. 30 ›› Issue (6): 64210-064210.doi: 10.1088/1674-1056/abee0b

A 90° mixed-mode twisted nematic liquid-crystal-on-silicon with an insulating protrusion structure

Wen-Juan Li(李文娟)^1,2, Yu-Qiang Guo(郭玉强)³, Chi Zhang(张弛)¹, Hong-Mei Ma(马红梅)², and Yu-Bao Sun(孙玉宝)^1,2,†

1 School of Electronic and Information Engineering, Hebei University of Technology, Tianjin 300401, China;
2 Department of Applied Physics, Hebei University of Technology, Tianjin 300401, China;
3 School of Instrumentation Science and Opto-electronics Engineering, Beihang University, Beijing 100191, China

收稿日期:2021-02-15 修回日期:2021-03-09 接受日期:2021-03-12 出版日期:2021-05-18 发布日期:2021-06-01
通讯作者: Yu-Bao Sun E-mail:sun_yubao@163.com
基金资助:
Project supported by the National Key Research and Development Program of China (Grant No. 2018YFB0703701) and the National Natural Science Foundation of China (Grant No. 61475042).

A 90° mixed-mode twisted nematic liquid-crystal-on-silicon with an insulating protrusion structure

Wen-Juan Li(李文娟)^1,2, Yu-Qiang Guo(郭玉强)³, Chi Zhang(张弛)¹, Hong-Mei Ma(马红梅)², and Yu-Bao Sun(孙玉宝)^1,2,†

1 School of Electronic and Information Engineering, Hebei University of Technology, Tianjin 300401, China;
2 Department of Applied Physics, Hebei University of Technology, Tianjin 300401, China;
3 School of Instrumentation Science and Opto-electronics Engineering, Beihang University, Beijing 100191, China

Received:2021-02-15 Revised:2021-03-09 Accepted:2021-03-12 Online:2021-05-18 Published:2021-06-01
Contact: Yu-Bao Sun E-mail:sun_yubao@163.com
Supported by:
Project supported by the National Key Research and Development Program of China (Grant No. 2018YFB0703701) and the National Natural Science Foundation of China (Grant No. 61475042).

摘要/Abstract

摘要： A 90° mixed-mode twisted nematic liquid-crystal-on-silicon (90°-MTN LCoS) with protrusion located between the adjacent pixels is proposed to reduce the effect of fringing field. The influence of the protrusion with different widths from 0.5 μm to 0.9 μm and different heights from 0.3 μm to 0.7 μm is investigated. The results demonstrate that the invalid pixel region width can be reduced by 31.5% via using the protrusion with the suitable width and height compared with no protrusion case, which provides a higher display quality, such as the higher reflectance and contrast ratio.

关键词: liquid-crystal-on-silicon, mixed-mode twisted nematic, fringing field effect, reflectance

Abstract: A 90° mixed-mode twisted nematic liquid-crystal-on-silicon (90°-MTN LCoS) with protrusion located between the adjacent pixels is proposed to reduce the effect of fringing field. The influence of the protrusion with different widths from 0.5 μm to 0.9 μm and different heights from 0.3 μm to 0.7 μm is investigated. The results demonstrate that the invalid pixel region width can be reduced by 31.5% via using the protrusion with the suitable width and height compared with no protrusion case, which provides a higher display quality, such as the higher reflectance and contrast ratio.

Key words: liquid-crystal-on-silicon, mixed-mode twisted nematic, fringing field effect, reflectance

中图分类号: (Display devices, liquid-crystal devices)

42.79.Kr

42.70.Df (Liquid crystals) 42.25.Gy (Edge and boundary effects; reflection and refraction)

Wen-Juan Li(李文娟), Yu-Qiang Guo(郭玉强), Chi Zhang(张弛), Hong-Mei Ma(马红梅), and Yu-Bao Sun(孙玉宝). A 90° mixed-mode twisted nematic liquid-crystal-on-silicon with an insulating protrusion structure[J]. 中国物理B, 2021, 30(6): 64210-064210.

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A 90° mixed-mode twisted nematic liquid-crystal-on-silicon with an insulating protrusion structure

A 90° mixed-mode twisted nematic liquid-crystal-on-silicon with an insulating protrusion structure

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