中文版 | English
Title

基于VA液晶的激光扫描器件及响应速度调制

Alternative Title
Laser scanning device and response speed modulation based on VA liquid crystal
Author
Publication Years
2023
DOI
Source Title
ISSN
1007-2780
Volume38Issue:9Pages:1178-1184
Abstract
本文在带有锯齿型ITO电极的基底上制备垂直排列(Vertical Aligned,VA)的液晶器件,将激光耦合在液晶层中,调制ITO电极的电压,出射激光实现了偏转并且偏转角随电压的增加而增大直至饱和.在两个顶角为20°的锯齿电极下,激光光斑偏转了约4°.用于液晶驱动的电压为交流电信号,通过调整最低驱动电压即偏置电压,使得液晶分子从一定的起始角度开始转动,同时也是在其可快速旋转的区间内进行驱动,从而提高液晶分子的响应速度.在此策略的指导下,通过在液晶分子转动时对其偏振态的表征,来确定液晶分子的状态与驱动速度.在平衡好折射率与驱动速度的前提下,对比了不同偏置电压下液晶层分子整体的响应速度.在有一定偏置电压的情况下,液晶层驱动的响应时间从55 ms下降至2.5 ms,而断电后的弛豫时间从18 ms下降至8.5 ms.这为后续采用这种液晶层方案的激光偏转器件获得更快速的扫描频率和扫描角度提供了新的方案.
Keywords
URL[Source Record]
Language
Chinese
SUSTech Authorship
Others
Data Source
WanFang
WanFangID
yjyxs202309004
Citation statistics
Cited Times [WOS]:0
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/571445
DepartmentDepartment of Electrical and Electronic Engineering
Affiliation
南方科技大学 电子与电气工程系,广东 深圳 518055
Recommended Citation
GB/T 7714
刘红均,邱成峰,刘召军. 基于VA液晶的激光扫描器件及响应速度调制[J]. 液晶与显示,2023,38(9):1178-1184.
APA
刘红均,邱成峰,&刘召军.(2023).基于VA液晶的激光扫描器件及响应速度调制.液晶与显示,38(9),1178-1184.
MLA
刘红均,et al."基于VA液晶的激光扫描器件及响应速度调制".液晶与显示 38.9(2023):1178-1184.
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