Display Technology Letters Fast-Response Single Cell Gap Transflective Liquid Crystal Displays

Abstract—A single cell gap transflective liquid crystal display (TR-LCD) using dual fringing field switching mode is proposed, in which a positive dielectric anisotropy liquid crystal is vertically aligned and driven by fringing fields from both substrates. By opti-mizing the electrode width and gap of the transmissive and reflec-tive regions, this TR-LCD exhibits a fast response time, high op-tical efficiency, single gamma curve, and wide viewing angle. Fast response time enables color sequential operation using red, green, and blue light-emitting diodes without noticeable color breakup. Potential application of this TR-LCD for sunlight readable mobile displays is emphasized. Index Terms—Transflective liquid crystal displays (TR-LCDs), fast response, single cell gap, color sequential display. I