Patent ID: 6570547
Filing Date: 2003-05-27
Classification: G09G

Abstract:
A driving circuit for a field emission display comprising:a plurality of cells, each cell being connected to each gate line in an one to one manner; a shift register for sequentially transmitting a gate line selecting control signal to said plurality of cells; a capacitor switching control unit for transmitting a capacitor switching control signal having a predetermined pulse width to said plurality of cells; an external capacitor control unit for outputting a capacitor low switching signal having a predetermined pulse width; and a capacitance for performing a charge charging/discharging operation in accordance with said capacitor low switching signal, wherein said cells comprise a first switching element formed between a power supply terminal and the corresponding gate line, for performing a switching operation; a second switching element connected to the first switching element in serial and to the corresponding gate line, for performing a switching operation; a first element controller for controlling a flow of charge to the corresponding gate line by switching-controlling the first switching element by the control signal for selecting the gate line; and a second element controller for controlling a flow of charge to the corresponding gate line and the capacitance by switching-controlling the second switching element by the capacitor switch control signal; said shift register, said capacitor switch control unit and said plurality of cells being integrated in one block; said capacitance being arranged one or more to be on the outside of the block.