Title :
A transflective liquid crystal display using an internal wire grid polarizer
Author :
Ge, Zhibing ; Zhu, Xinyu ; Wu, Shin-Tson
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Central Florida Univ., Orlando, FL
fDate :
6/1/2006 12:00:00 AM
Abstract :
To obtain high transmittance and reflectance simultaneously, a single cell gap transflective liquid crystal (LC) display using internal wire grid polarizer (WGP) is proposed. For the reflective mode, the imbedded WGP serves as a polarization-dependent reflector for the ambient light. For the transmissive mode, no achromatic quarter-wave film is needed. This device can be used as a normally black mode (using vertical alignment) and a normally white mode (using twist-nematic alignment), based on the initial LC cell alignment. Detailed electro-optic performance, such as voltage-dependent light efficiency and viewing angle of these two device configurations, is investigated
Keywords :
light transmission; liquid crystal displays; refractive index; achromatic quarter wave film; black mode; device configurations; electro optic performance; internal wire grid polarizer; polarization dependent reflector; reflective mode; transflective liquid crystal display; transmissive mode; twist nematic alignment; vertical alignment; viewing angle; voltage dependent light efficiency; white mode; Electrooptic devices; Helium; Liquid crystal displays; Optical films; Optical polarization; Personal digital assistants; Reflectivity; Switches; Threshold voltage; Wire; Liquid crystal display (LCD); transflective; wire grid polarizer (WGP);
Journal_Title :
Display Technology, Journal of
DOI :
10.1109/JDT.2006.874509
