Abstract

In a new type of illumination system for reflective liquid-crystal displays, the frontlight, unwanted shadows appear in certain viewing directions. It will be shown that for an accurate description of these shadows the geometrical optics approach is not satisfactory and that Fresnel diffraction has to be taken into account. A model for the diffraction effects was developed, and the predicted results correspond well to the measurements. In addition, some remarkable effects were explained from the theory of Fresnel zones.

© 2002 Optical Society of America

Phasor analysis of eigenvectors generated in liquid-crystal displays

Jeffrey A. Davis, Josep Nicolás, and Andrés Márquez
Appl. Opt. 41(22) 4579-4584 (2002)

Wavelength-dependent diffraction patterns from a liquid crystal display

Jeffrey A. Davis, Joseph B. Chambers, Brian A. Slovick, and Ignacio Moreno
Appl. Opt. 47(24) 4375-4380 (2008)

Design and fabrication of an integrated polarized light guide for liquid-crystal-display illumination

Ko-Wei Chien and Han-Ping D. Shieh
Appl. Opt. 43(9) 1830-1834 (2004)

Sensitive voltage-dependent diffraction of a liquid crystal Fresnel lens

Wen-Chi Hung, Yu-Jen Chen, Chia-Huey Lin, I-Min Jiang, and Tzu-Fang Hsu
Appl. Opt. 48(11) 2094-2098 (2009)

Ray matrix analysis of the fast Fresnel transform with applications towards liquid crystal displays

Jeffrey A. Davis and Don M. Cottrell
Appl. Opt. 51(5) 644-650 (2012)