液晶电光特性研究

靳鹏飞

doi:doi:10.5768/jao201334.0105004

应用光学, 2013, 34 (1): 143, 网络出版: 2013-05-22

液晶电光特性研究

Electro-optic characteristic of liquid crystal

论文大纲

靳鹏飞 ^*

作者单位

西安邮电大学电子工程学院, 西安 710121

液晶电光特性透射率液晶显示 liquid crystal photoelectric characteristic transmittance liquid crystal display

摘要

随着近几年液晶显示技术在诸多领域的广泛应用和新技术的推出,人们一直致力于改善液晶器件显示性能的研究。在液晶显示器应用中,电光特性是一个很重要的参数,介绍了采用激光测量的方法获得液晶的电光特性、阈值电压及视角特性。分析了液晶分子在交流电场作用下重新取向后的扭曲特性,测试了不同电压下液晶分子的透光率和扭曲角度,结果表明：该方法是可行的,向列相液晶具有0.92 V较低阈值电压和较为陡峭的电光曲线,水平方向上在-60°~+50°有较好的视角特性,垂直方向上在-40°~+20°有较好的视角特性。该结论为偏光器件的设计与制作提供了依据。

Abstract

With the wide application of liquid crystal display technique in most fields and the promotion of new technologies in recent years, much endeavor has been made to improve its performance. The photoelectric characteristic is an important parameter in the application of liquid crystal devices. The electro-optical properties, threshold voltage and viewing angle of liquid crystal were studied by using laser measurement, and the distortion characteristics of liquid crystal molecules affected by the alternating electric field after re-orientation were analyzed. The twist angle of liquid crystal molecules and transmittance under different voltage conditions were also tested. The results show that this method is feasible. The twisted nematic liquid crystal has 0.92 V lower threshold voltage and relatively steep electro-optical curve, and it possessed good view angle properties from -60° to +50° in the horizontal direction and from -40° to +20° in the vertical direction. The conclusion provides scientific basis for the design and manufacture of polarizer.

参考文献

[1] 林培秋,应朝福,徐展斌,等. 基于纯相位液晶空间光调制器的可变焦透镜的实现［J］.应用光学,2010,31(3):376-379.

LIN Pei-qiu,YING Chao-fu,XU Zhan-bin, et al.Implementation of controllable zoom lens based on phase-only liquid crystal spatial light modulator［J］.Journal of Applied Optics, 2010,31(3):376-379.(in chinese with an English abstract)

[2] 陈赤,刘文德,徐英莹,等.标准白场仪及视角测量方法的研究［J］. 应用光学,2011,32(6):1180-1182.

CHEN Chi,LIU Wen-de,XU Ying-ying, et al.Standard white instrument for measuring viewing angleT［J］. Journal of Applied Optics, 2011,32(6):1180-1182.(in Chinese with an English abstract)

[3] 孙玉珂.液晶电光特性的实验测试［J］. 临沂师范学院学报,2004,26(6):134-136.

SUN Yu-ke.The testing of electro-optic characteristics of liquid crystal［J］.Journal of Linyi Teacherscollege, 2004,26(6):134-136.(in Chinese with an English abstract)

[4] 李志勇,单艾娴,孙玉宝.自然螺距对扭曲向列相液晶显示器的影响［J］. 液晶与显示,2010,25(3):329-332.

LI Zhi-yong,SHAN Ai-xian,SUN Yu-bao.Natural pitch effects on twist nematic liquid crystal display［J］. Chinese Journal of Liquid Crystal and Displays, 2010,25(3):329-332.(in Chinese with an English abstract)

[5] 李永忠,陈伟川.TN-LCD的视角特性［J］. 现代显示,2005,9(55):35-39.

LI Yong-zhong,CHEN Wei-chuan.TN-LCD display characters［J］.Advanced Displaya, 2005,9(55):35-39.(in Chinese with an English abstract)

[6] 王谦,余飞鸿,潘为民,等.扭曲向列型LCD电光特性计算的理论研究［J］.光子学报,2000,29(4):330-336.

WANG Qian,YU Fei-hong,PAN Wei-min, et al.Comparison of extended jones matrices for twisted nematic liquid crystal display at oblique angles of incidence［J］.Acta Photonica Sinica,2000,29(4):330-336.(in Chinese with an English abstract)

[7] 欧阳艳东,吕秀品,聂传岗,等.胆甾相液晶双稳态器件电光特性研究［J］.汕头大学学报,2012,27(3):50-52.

OUYANG Yang-dong,L Xiu-pin,NIE Chuan-gang, et al.Electro-optic properties of bravery cholesterol phase liquid crystal bistable devices［J］.Journal of Shantou University, 2012,27(3):50-52.(in Chinese with an English abstract)

[8] 任芝,张志东.手性垂直排列液晶盒的视角特性［J］. 液晶与显示,2005,20(1):32-35.

REN Zhi,ZHANG Zhi-dong.Viewing angle characteristics of chiral-homeotropic liquid crystal cells［J］.Chinese Journal of Liquid Crystal and Displays, 2005,20(1):32-35. (in Chinese with an English abstract)

[9] 王必利,王慧.向列相液晶电光特性研究［J］. 大学物理实验,2011,24(4):4-6.

WANG Bi-li,WANG Hui.The study of electric-optic character of liquid crystal［J］.Physical Experiment of college, 2011,24(4):4-6.(in Chinese with an English abstract)

[10] 付雄华,李奕鑫,余敏超,等.用光谱法研究扭曲向列相液晶器件的电光特性［J］. 激光杂志,2011,32(4):3-4.

FU Xiong-hua,LI Yi-xin,YU Min-chao, et al.Twisted nematic liquid crystal electro-optical properties studies using spectrscopic［J］.Laser Journal, 2011,32(4):3-4.(in Chinese with an English abstract)

靳鹏飞. 液晶电光特性研究[J]. 应用光学, 2013, 34(1): 143. JIN Peng-fei. Electro-optic characteristic of liquid crystal[J]. Journal of Applied Optics, 2013, 34(1): 143.

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