An apparatus and a method for stabilizing the threshold voltage in an active matrix field emission device. The method includes the formation of radiation blocking elements between a cathodoluminescent display screen of the FED and semiconductor junctions formed on a baseplate of the FED....http://www.google.com.au/patents/US6417605?utm_source=gb-gplus-sharePatent US6417605 - Method of preventing junction leakage in field emission devices
