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P‐25: An Accurate Spectral Method for Measuring Twist Angle of Twisted Cells with Rubbed and Grooved Surfaces
Author(s) -
Konovalov V. A.,
Muravski A. A.,
Yakovenko S. Ye.,
Pelzl J.
Publication year - 2000
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.1833023
Subject(s) - twist , materials science , surface (topology) , optics , geometry , physics , mathematics
Accurate optical method for measuring twist angle in TN LC cells is presented. Deviation of the measured values for different orientations of the cell and polarizes have been analyzed. The method allows to determine twist angle with high accuracy for cells with rubbed surfaces as well as for cells where at least one surface is corrugated.