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。
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°.
出处
《大学物理实验》
2011年第6期6-8,共3页
Physical Experiment of College
基金
河北省自然科学基金资助项目(No.A2010000004)
河北省高校重点学科资助项目
关键词
液晶盒
视角
对比度
扭曲向列相
liquid crystal cell
viewing angle
contrast ratio
twisted nematic
