SUB-TWISTED NEMATIC LIQUID-CRYSTAL DISPLAY

A new reflective liquid crystal display, the sub-twisted nematic LCD ( SBTN), is presented. The SBTN, specifically designed for its twist ang le, the product of cell thickness and birefringence, the direction of its only polarizer, etc. exhibits good electro-optic performance. Brig htness, contrast, colour dispersion and multiplexing ability, etc. wer e theoretically and experimentally examined. The prototype showed high brightness, little dispersion, good mutliplexing ability, good viewin g angle and response behaviour. It also offers good manufacturing tole rance and low production cost.