硅上液晶显示器件结构的优化

李文娟; 郭玉强; 马红梅; 孙玉宝

doi:10.3788/YJYXS20193410.0945

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硅上液晶显示器件结构的优化

材料与器件 | 更新时间：2020-08-12

- 硅上液晶显示器件结构的优化
- Optimized device structure of liquid crystal on silicon
- 液晶与显示 2019年34卷第10期页码：945-951
- 作者机构：
  
  1.河北工业大学电子材料与器件天津重点实验室, 天津 300401
  2.河北工业大学应用物理系, 天津 300401
- 作者简介：
  
  [ "李文娟(1985—), 女, 河北邯郸人, 博士研究生, 2013年于河北工业大学获得硕士学位, 主要从事液晶显示器方面的研究。E-mail:lwj_hebut@163.com" ]
  [ "孙玉宝(1975—), 男, 河北沧州人, 教授, 2010年于河北工业大学获得博士学位, 主要从事液晶显示器件方面的研究。E-mail:sun_yubao@163.com" ]
- 基金信息：
  
  国家重点研发计划(2018YFB0703701);国家自然科学基金(61475042);Supported by the National Key R & D Program of China(2018YFB0703701);the National Natural Science Foundation of China(61475042)
- DOI：10.3788/YJYXS20193410.0945
  中图分类号： TP141.9
- 收稿日期：2019-05-24，
  
  录用日期：2019-6-16，
  
  纸质出版日期：2019-10-05
- 稿件说明：
移动端阅览
李文娟, 郭玉强, 马红梅, 等. 硅上液晶显示器件结构的优化[J]. 液晶与显示, 2019,34(10):945-951.

Wen-juan LI, Yu-qiang GUO, Hong-mei MA, et al. Optimized device structure of liquid crystal on silicon[J]. Chinese journal of liquid crystals and displays, 2019, 34(10): 945-951.
李文娟, 郭玉强, 马红梅, 等. 硅上液晶显示器件结构的优化[J]. 液晶与显示, 2019,34(10):945-951. DOI： 10.3788/YJYXS20193410.0945.

Wen-juan LI, Yu-qiang GUO, Hong-mei MA, et al. Optimized device structure of liquid crystal on silicon[J]. Chinese journal of liquid crystals and displays, 2019, 34(10): 945-951. DOI： 10.3788/YJYXS20193410.0945.

摘要

对于硅上液晶（Liquid Crystal on Silicon，LCoS）器件而言，由于其像素间距较小，当某一像素施加电压后，会影响其相邻不加电压的像素的光学特性。为了改善这一情况，本文通过建立一种常白型LCoS的三维光学模型，研究了3种参数对相邻不加电像素边缘的影响。结果表明：（1）相邻像素边缘暗态的位置和面积会随着液晶分子取向的改变而改变，当液晶分子取向方向为45°时，相邻像素边缘受影响的程度最小；（2）液晶盒的厚度越大，相邻像素边缘受影响的程度越大；（3）像素间距对相邻像素边缘的影响是变化的。本文条件下，当像素间距为0.7

m时，加电的中央像素对周围像素的反射率的影响最小。本研究的结论对高分辨率LCoS的设计和制备具有一定的指导意义。

Abstract

In terms of liquid crystal on silicon (LCoS) device

the optical properties of off-state pixels would be affected by the adjacent on-state pixel

because the distance between the adjacent pixels is small. To improve this issue

a three-dimensional (3D) optical modeling based on the normally white LCoS mode is built to investigate the effects of three parameters on the adjacent pixels' optical properties. As a result

(1) the position and area of dark zone on the edge of adjacent pixels change with the initial liquid crystal director. The least influence can be obtained for the adjacent pixels

when the initial liquid crystal director is 45°. (2) The thicker the LCD cell is

the greater the influence on the adjacent pixels is. (3) The influence of pixels' gap on the edges of adjacent pixels are varying. In this work

as the pixels' gap is 0.7

the on-state central pixel has the least influence on the reflectivity of the adjacent pixels. This investigation has a certain guiding significance for the design and preparation of high resolution LCoS.

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Keywords

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