简单介绍了液晶的电控双折射特性；
The theory of the LC voltage-dependent birefringence is introduced;
介绍液晶电控双折射知识，给出在偏光显微镜下观测液晶盒的颜色随外加电压变化的实验。
The experiment of observing the color changes of electrically controlled birefringence of liquid crystal cell with different applied voltage with polarizing microscope was presented.
介绍液晶电控双折射知识，给出在偏光显微镜下观测液晶盒的颜色随外加电压变化的实验。
The experiment of observing the color changes of electrically controlled birefringence of liquid crystal cell with different applied voltage with polarizing microscope was presented.
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