Patent ID: 6097359
Filing Date: 2000-08-01
Classification: G09G,H01J

Abstract:
A cell driving device of a field emission display according to a passive matrix addressing a method having a field emission pixel cell with a cathode and a gate electrode for emitting electrons from said cathode, said cell driving device comprising:a plurality of NMOS transistors, each NMOS transistor used as current sources disposed to provide a current signal to said cathode;a plurality of switching parts for switching a high voltage applied to the gate electrode;a controlling part for selectively driving said at least two current sources according to the size of a video signal; andwherein said current signals each generated in said current sources are increased by 2.sup.N (N=1, 2, 3 . . . ) from one current level of a least significant bit to the other of a most significant bit.