Patent ID: 6465966
Filing Date: 2002-10-15
Classification: G09G,H01J

Abstract:
A field emission display comprising:a cathode panel having an array of electron source units for emitting electrons; a fluorescent panel distanced by a vacuum inter-space from said cathode panel; a cathode panel driver circuit being connected to said field emission display panel for controlling electron emissions from said electron source units; a fluorescent voltage supplying device being connected to said fluorescent panel for supplying a fluorescent voltage to said fluorescent panel; a current measuring device being connected to said fluorescent voltage supplying device for measuring a current value of said fluorescent voltage supplying device; a memory connected to said current measuring device for receiving a measured current value from said current measuring device and storing the measured current value; and a pulse signal converter for transmitting control pulse signals as control signals, said pulse signal converter changing at least one of a pulse height and a pulse width of the control pulse signal on the basis of said measured current value, said pulse signal converter being connected to said memory for receiving the measured current value for correcting said control signals on the basis of comparing said measured current value with a reference current value stored in said memory, and said pulse signal converter also being connected to said cathode panel driver circuit for transmitting said corrected control signals to said cathode panel driver circuit.