A controllable viewing angle optical film using micro prisms filled with liquid crystal

被引：12

作者：

Dou, Hu ^{[1
,2
]}

Chen, Mei ^{[3
]}

Li, Ding ^{[2
]}

Yu, Gang ^{[2
]}

Sun, Yu-Bao ^{[4
]}

机构：

[1] Peking Univ, Sch Elect & Comp Engn, Shenzhen, Guangdong, Peoples R China

[2] TCL China Star Optoelect Technol Co Ltd, Shenzhen, Guangdong, Peoples R China

[3] Peking Univ, Sch Adv Mat, Shenzhen, Guangdong, Peoples R China

[4] Heibei Univ Technol, Dept Appl Phys, Tianjin, Peoples R China

来源：

LIQUID CRYSTALS | 2021年 / 48卷 / 10期

基金：

中国博士后科学基金;

关键词：

Liquid crystal; optical film; viewing angle; microprisms;

D O I：

10.1080/02678292.2021.1873439

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A controllable viewing angle optical film (CVOF) using a microprism array filled with liquid crystal is proposed, the display performance of small and large viewing angles can be tunable for liquid-crystal displays (LCDs). Two microprisms with different heights are formed in the proposed optical film. The different diffuse abilities of the proposed optical film can be obtained by adjusting the applied voltage, the contrast loss problem of the conventional optical film is solved. Our simulation results reveal that the contrast of the normal viewing angle is increased from 1429 to 4909 as the applied voltage is zero, and the brightness is increased by 41.4% and 89.4% at the large polar viewing angle (45 degrees and 60 degrees) when the applied voltage is 15 V, respectively. [GRAPHICS] .

引用

页码：1373 / 1381

页数：9

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