Patent ID: 8059065

Claim:
A method of driving an electro-luminescence display panel having a plurality of electro-luminescent (EL) cells containing cathode electrodes, comprising the steps of: simultaneously opening all of the cathode electrodes of the EL cells and a ground voltage source at a beginning of a first period and throughout the first period, which begins at the turn-on time of a power source to initiate writing a first frame of data and ends at an ending time of the writing of the first frame of data, to shut off a current path of the EL cells during the entire first period; and shorting the cathode electrodes of the EL cells and the ground voltage source during a second period, after the ending time of the writing of the first frame of data, to form the current path of the EL cells, wherein the beginning of the first period corresponds to a beginning of the initiated writing of the first frame of data, the entire first period corresponds to the entire first frame of data, the simultaneously opening of all of the cathode electrodes of the EL cells and the ground voltage source occurs only one time when the power source is turned on, and the shorting of the cathode electrodes and the ground voltage source during the second period is for frames of the data following after the first frame, without opening the cathode electrodes of the EL cells and the ground voltage source.