Patent ID: 6369505
Filing Date: 2002-04-09
Classification: H01J

Abstract:
A baseplate for use in a field emission display, comprising:a supporting substrate having a primary surface upon which an array of emitters is formed; an insulator layer disposed on the primary surface, the insulator layer having a plurality of cavities aligned with respective emitters; an extraction grid having a plurality of cavity openings aligned with respective emitters, the extraction grid being made from a silicon based layer of material deposited on the insulator layer; and a current control substrate formed from the silicon based layer of material of the extraction grid, the current control substrate being physically non-contiguous with the supporting substrate and electrically isolated from the extraction grid and electrically connected to the emitters by a conductive lead connected between the current control substrate and the supporting substrate, the current control substrate being adapted to control the current flowing from the emitters.