A reflective guest-host liquid-crystal display includes: a pair of upper and lower substrates joined together with a predetermined space therebetween; and a guest-host liquid-crystal layer which is held within the space and contains a dichroic dye. The upper substrate is provided with at least a counter...http://www.google.de/patents/US5926242?utm_source=gb-gplus-sharePatent US5926242 - Active matrix reflective guest-host LCD with pixel electrodes patterned on quarter wave plate
