Patent ID: 6650308
Filing Date: 2003-11-18
Classification: G09G

Abstract:
An organic EL display device, comprising:a plurality of organic EL elements arranged in a matrix pattern; a plurality of scanning lines each connected to a row of the organic EL elements; a plurality of data lines each connected to a column of the organic EL elements; a scanning line driving circuit for successively scanning said scanning lines; a data line driving circuit for applying a driving current to a selected data line in synchronization with the scanning operation of said scanning line driving circuit; a Zener diode capable of retaining a voltage in a range for a black level of said organic EL elements; a switch provided between each of said data lines and said Zener diode for either commonly connecting said data lines to said Zener diode or disconnecting said data lines from one another and from said Zener diode; and a control circuit for turning on all of the switches to connect all of the data lines to one another and to the Zener diode when the scanning operation by said scanning line driving circuit proceeds from one scanning line to the next scanning line.