LIQUID CRYSTAL LIGHT VALVE AND PROJECTION TYPE LIQUID CRYSTAL DISPLAY FORMED BY USING THE SAME

摘要

PURPOSE: To provide a liquid crystal light valve for a projection type display which has light shielding performance to withstand irradiation with several million lux and displays image with high fineness and high quality. CONSTITUTION: Pixel circuit regions 101 arranged with plural switching elements 10la in a matrix form, driving circuit regions l02 arranged with driving circuit elements l02a and periphery regions are formed on the surface of a semiconductor substrate 100 and metallic layers 140, 160, 180 are disposed via insulating layers thereon. Reflection electrodes 181 to be formed as the output ends of the switching elements 101a are segmented by slits and are arranged on the metallic layer 180 of the uppermost part. Liquid crystals 200 are packed between transparent electrodes 302 which are formed on a glass substrate 302 and face the reflection electrodes 181 and the semiconductor substrate 100. Light shielding layers 163 of the pixel circuit regions 101 for shutting off the incident light from the slits 181 and light shielding layers for shutting off the irradiation of the peripheral regions and the driving circuit regions 102 are formed on the metallic layer 160.