报告内容摘要

Liquid crystal displays are playing a crucial role in current information era.  Many of them are edgelit, where light is produced by a light source at the edge of the display and is spread out to illuminate the entire display through a light waveguide plate (LWGP).  We developed a novel polarizing LWGP from polymer stabilized nematic liquid crystal, which can convert the unploarized light produced by the edgelight into linearly polarized light.  This LWGP selectively scatters light depending on the polarization.  When a light propagates through the LWGP, it will be scattered out of the plate if its polarization is parallel to the direction of the liquid crystal but will not be scattered if its polarization is perpendicular to the liquid crystal.  This polarizing LWGP can greatly improve the light efficiency of edgelight liquid crystal displays.

报告人简介

Yang received his Bachelor Degree and Ph.D. (1989) in Physics from Tsinghua University and University of Hawaii, respectively. Now he is a member of the Chemical Physics graduate faculty within Liquid Crystal Institute (LCI). His specialities include cholesteric liquid crystals, liquid crystal/polymer composites and electro-optic devices. He is one of the co-inventors of bistable cholesteric display (BCD) technology, currently the world's most promising technology for electronic paper.

Chemical Physics Interdisciplinary Program, Liquid Crystal Institute,

Kent State University, Kent, Ohio 44242, USA

欢迎广大老师和研究生参加！