Design of 1-μm-pitch liquid crystal spatial light modulators having dielectric shield wall structure for holographic display with wide field of view
Design of 1-μm-pitch liquid crystal spatial light modulators having dielectric shield wall structure for holographic display with wide field of view
复制标题
宽视场全息显示介电屏蔽壁结构1μm间距液晶空间光调制器设计
DOI：
10.1007/s10043-017-0316-0
复制
发表时间：
2017
期刊：
影响因子：
1.2
通讯作者：
and Hideo Fujikake
中科院分区：
文献类型：
--
作者：
Yoshitomo Isomae;Yosei Shibata;Takahiro Ishinabe;and Hideo Fujikake
在大视场电子全息显示器的研制中，一个重要的课题是利用硅基液晶（LCOS）技术实现1 μ m间距的空间光调制器（SLM）。我们阐明了不仅需要抑制来自相邻像素的边缘电场的泄漏，而且需要抑制液晶中的弹性力的影响，以在各个像素中实现全相位调制（2π）。提出了一种新型的具有介质屏蔽墙结构的LCOS-SLM，实现了1 μ m间距像素的独立驱动。我们还研究了当扩大像素中可以调制光的区域时，壁结构的宽度和介电常数的最佳值。这些结果有助于1 μ m间距LCOS-SLM宽视角全息显示器件的设计。
In the development of electronic holographic displays with a wide field of view, one issue is the realization of 1-μm-pitch spatial light modulators (SLMs) using liquid crystal on silicon (LCOS) techniques. We clarified that it is necessary to suppress not only the leakage of fringe electric fields from adjacent pixels but also the effect of elastic forces in the liquid crystal to achieve full-phase modulation (2π) in individual pixels. We proposed a novel LCOS-SLM with a dielectric shield wall structure, and achieved driving of individual 1-μm-pitch pixels. We also investigated the optimum values for width and dielectric constant of the wall structure when enlarging the area that can modulate light in the pixels. These results contribute to the design of 1-μm-pitch LCOS-SLM devices for wide-viewing-angle holographic displays.