Equivalent retarder-rotator approach to twisted nematic liquid crystal displays

Vicente Durán; Jesus Lancis; Enrique Tajahuerce; Zbigniew Jaroszewicz

doi:10.1117/12.622598

6 October 2005 Equivalent retarder-rotator approach to twisted nematic liquid crystal displays

Vicente Durán, Jesus Lancis, Enrique Tajahuerce, Zbigniew Jaroszewicz

Proceedings Volume 5947, Liquid Crystals: Optics and Applications; 59470Y (2005) https://doi.org/10.1117/12.622598
Event: Congress on Optics and Optoelectronics, 2005, Warsaw, Poland

Abstract

The equivalence between a twisted-nematic liquid crystal cell and the combination of a retardation wave-plate and a polarization rotator can be used to calibrate a voltage-addressed liquid crystal display. We present a simple polarimetric procedure to determine the two parameters that define the optical properties of the equivalent retarder-rotator system for each value of the applied voltage. Once the calibration procedure is performed, the optical response of the liquid crystal cell can be predicted and optimized. In particular, we demonstrate the generation of a family of equi-azimuth polarization states with a liquid crystal display sandwiched by a polarizer and a quarter-wave plate, whose optimal orientations are evaluated by a numerical simulation. Laboratory results corresponding to a commercial liquid crystal display are pre-sented.

Citation Download Citation

Vicente Durán, Jesus Lancis, Enrique Tajahuerce, and Zbigniew Jaroszewicz "Equivalent retarder-rotator approach to twisted nematic liquid crystal displays", Proc. SPIE 5947, Liquid Crystals: Optics and Applications, 59470Y (6 October 2005); https://doi.org/10.1117/12.622598

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