In an active matrix liquid crystal device assuming a light blocking condition when a voltage is applied, there are provided a main plate formed with a pixel electrode, wiring electrodes and a switching transistor, an opposing plate formed with an opposing electrode, and a liquid crystal material sandwiched...http://www.google.ca/patents/US5510916?utm_source=gb-gplus-sharePatent US5510916 - Active matrix liquid crystal device with opposite substrate having black matrix with larger aperture than active substrate
