Complementary of phase compensation method to measure gap of twist nematic cells

Xibin Shao; Zongkai Wang; Ruipeng Sun; Tao Yu; Zhenjun Ma; Xinmin Huang

doi:10.1117/12.253056

3 October 1996 Complementary of phase compensation method to measure gap of twist nematic cells

Xibin Shao, Zongkai Wang, Ruipeng Sun, Tao Yu, Zhenjun Ma, Xinmin Huang

Proceedings Volume 2899, Automated Optical Inspection for Industry; (1996) https://doi.org/10.1117/12.253056
Event: Photonics China '96, 1996, Beijing, China

Abstract

The phase compensation method presented by A. Lien is a precise and convenient tool to measure the cell gap of filed twist nematic liquid crystal cells. But in the paper the equations which were used to calculate the thickness of LC layer are not enough to distinguish the two phase difference which does correspond to different cell gap. In this paper, the conditional equations were given and the factors affected the accuracy of phase compensation were discussed.

Citation Download Citation

Xibin Shao, Zongkai Wang, Ruipeng Sun, Tao Yu, Zhenjun Ma, and Xinmin Huang "Complementary of phase compensation method to measure gap of twist nematic cells", Proc. SPIE 2899, Automated Optical Inspection for Industry, (3 October 1996); https://doi.org/10.1117/12.253056

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