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

doi:10.1088/1674-1056/abee0b

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.

Keywords: liquid-crystal-on-silicon mixed-mode twisted nematic fringing field effect reflectance

Received: 15 February 2021
Revised: 09 March 2021
Accepted manuscript online: 12 March 2021

PACS:	42.79.Kr	(Display devices, liquid-crystal devices)
	42.70.Df	(Liquid crystals)
	42.25.Gy	(Edge and boundary effects; reflection and refraction)

Fund: 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).

Corresponding Authors: Yu-Bao Sun
E-mail: sun_yubao@163.com

Cite this article:

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 2021 Chin. Phys. B 30 064210

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

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