Reflective liquid-crystal displays with asymmetric incident and exit angles
Abbreviated Journal Title
J. Opt. Soc. Am. A-Opt. Image Sci. Vis.
JONES MATRIX REPRESENTATION; 4 X 4; ANISOTROPIC MEDIA; OBLIQUE-INCIDENCE; THIN-FILM; OPTICS; PROPAGATION; Optics
The 2 X 2 matrix methods are extended to calculate the optical behaviors of reflective liquid-crystal displays with asymmetric incident and exit angles. Both the unfolding method and the backward -eigenwave method are employed to derive the 2 X 2 matrix representations. The simulation results for symmetric incident and exit angles from these two methods are identical and agree well with those obtained from the 4 X 4 matrix method when the air-panel surface reflections are neglected. Further, the derived 2 X 2 matrix methods are applied to the asymmetric cases with different incident and exit angles. The simulated results on the normally black vertical alignment and normally white mixed-mode twisted nematic reflective displays show reasonably good agreement with the reported experimental data. In addition, a rubbing effect related to contrast values is observed and analyzed in asymmetric reflective cases. We also find that this effect has a significant influence on the contrast ratios once the difference between the incident and exit angles becomes large. (c) 2005 Optical Society of America.
Journal of the Optical Society of America a-Optics Image Science and Vision
"Reflective liquid-crystal displays with asymmetric incident and exit angles" (2005). Faculty Bibliography 2000s. 5206.