Display Technology Letters A Transflective Liquid Crystal Display Using an Internal Wire Grid Polarizer

Abstract—To obtain high transmittance and reflectance simul-taneously, 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. Index Terms—Liquid crystal display (LCD), transflective, wire grid polarizer (WGP). THE rapid advance of portable electronics, such as mobilephones, e-books, and personal digital assistants, generates agrowingdemandofdisplayswith lowpowerconsumption,goo