Patent ID: 6661179
Filing Date: 2003-12-09
Classification: G09G

Abstract:
A characteristics adjustment method for a multi electron source having a plurality of electron emitting devices disposed on a substrate, comprising steps of:measuring electron emission characteristics of each of the electron emitting devices and setting a characteristics adjustment target value; applying a plurality of characteristics shift voltages having discrete values to some of the electron emitting devices, measuring electron emission characteristics of these electron emitting devices, and creating a characteristics adjustment table for each of the characteristics shift voltage values in accordance with change rates of these measured electron emission characteristics of these electron emitting devices; selecting a predetermined characteristics shift voltage value from the plurality of characteristics shift voltage values by referring to the characteristics adjustment table created for each of the electron emitting devices and applying the predetermined characteristics shift voltage to the electron emitting devices to shift the characteristics toward the characteristics adjustment target value; and monitoring a change in the electron emission characteristics to revise a characteristics shift condition.