Patent ID: 6738031
Filing Date: 2004-05-18
Classification: G09G,H01L

Abstract:
A matrix display device comprising on a substrate an array of addressable pixels each having a display element and a display element control circuit for controlling the operation of the display element, wherein the display element control circuit includes a charge storage capacitor and an associated thin film photosensitive semiconductor material having doped contact regions laterally spaced on the substrate and an intervening region, and wherein the storage capacitor comprises a conductive layer extending substantially traversely of the semiconductor strip over one contact region thereof with a layer of dielectric material being disposed between the conductive layer and that contact region;wherein a structure of each one pixel of said array of addressable pixels is modified relative to said storage capacitor to be relatively smaller than said storage capacitor so that a portion of said storage capacitor additionally comprises a light shielding means for shielding ambient light to said each one pixel.