Applied Physics Letters
A new dispersion involving a polymer in low concentration with a cholesteric liquid crystal is reported. Two types of light modulators from these materials are described as a normal mode shutter which is opaque (light scattering) in the field-OFF state and transparent in the field-ON state and a reverse-mode shutter with the opposite field conditions. The transparent state of both cells is haze-free for all viewing angles making the material attractive for window applications and direct view displays.
Yang, Deng-Ke; Chien, Liang-Chy; and Donae, J. W. (1992). Cholesteric Liquid-Crystal Polymer Dispersion for Haze-Free Light Shutters. Applied Physics Letters 60(25), 3102-3104. doi: 10.1063/1.106765 Retrieved from http://digitalcommons.kent.edu/cpippubs/45