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液晶盒视角对比度曲线的实验测量
引用本文:林森,李吟秋,孙景阳,邢红玉,叶文江,张志东. 液晶盒视角对比度曲线的实验测量[J]. 大学物理实验, 2011, 24(6): 6-8
作者姓名:林森  李吟秋  孙景阳  邢红玉  叶文江  张志东
作者单位:河北工业大学,天津,300401
基金项目:河北省自然科学基金资助项目,河北省高校重点学科资助项目
摘    要:
设计了一种测量液晶盒视角的实验装置,通过固定的水平角度和竖直角度扭曲向列相液晶盒光透过率的测量,得到了视角-对比度曲线。不同的水平和竖直视角,其对比度也是不同的。无论竖直视角的大小,水平视角为0°时对比度最大;当对比度大于某一数值(例如50)时,随着竖直视角从20°增加到20°,水平视角的范围先增大后减小。

关 键 词:液晶盒  视角  对比度  扭曲向列相

Experimental Measurement on the Viewing Angle-contrast Ratio of Liquid Crystal Cell
LIN Sen,LI Yin-qiu,SUN Jing-yang,XING Hong-yu,YE Wen-jiang,ZHANG Zhi-dong. Experimental Measurement on the Viewing Angle-contrast Ratio of Liquid Crystal Cell[J]. Physical Experiment of College, 2011, 24(6): 6-8
Authors:LIN Sen  LI Yin-qiu  SUN Jing-yang  XING Hong-yu  YE Wen-jiang  ZHANG Zhi-dong
Affiliation:(Hebei University of Technology,Tianjin 300401)
Abstract:
Using an our designed experimental installation to measure the viewing angle of liquid crystal cell,the viewing angle-contrast ratio curve of a twisted nematic liquid crystal cell is obtained by measuring the transmittance with the fixed horizontal angle and vertical angle.For the different horizontal angle and vertical angle,the contrast ratio is unlike.No matter the size of the vertical angle,horizontal viewing angle is 0° for the maximum contrast;when the contrast is greater than a certain value(e.g.50),the horizontal viewing angle range increases and then decreases with the increase of vertical angle from-20° to 20°.
Keywords:liquid crystal cell  viewing angle  contrast ratio  twisted nematic
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