C.-J. Chen, Alan Lien, et al.
Journal of the Optical Society of America A: Optics and Image Science, and Vision
Abstract— An optical method is presented which allows one to measure simultaneously the twist angle and cell gap of a filled twisted‐nematic liquid‐crystal display (TN‐LCD) that has an arbitrary unknown twist angle between 0 and 360°. It can also determine the sense of handedness of the twist and the two rubbing directions of an unknown panel. Using this method, the measurement uncertainty of the cell gap is within 1% and the measurement uncertainties of the twist angle and rubbing directions are within 1°. 1993 Society for Information Display
C.-J. Chen, Alan Lien, et al.
Journal of the Optical Society of America A: Optics and Image Science, and Vision
P.M. Fryer, E.G. Colgan, et al.
MRS Spring Meeting 1998
Alan Lien
EURODISPLAY 1991
Alan Lien, R.A. John
Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers