Patent ID: 7652432
Filing Date: 2010-01-26
Classification: G09G

Abstract:
1. An organic electro-luminescence (EL) device including at least an emission layer between an anode and a cathode that are opposed to each other, comprising: an anode buffer layer that is composed of an electrically conductive material and is provided between the anode and the emission layer; a cathode buffer layer that is composed of an electrically conductive material and is provided between the cathode and the emission layer; and a drive unit that applies a forward bias voltage and a reverse bias voltage to the anode and the cathode with setting application time periods of the forward bias voltage and the reverse bias voltage according to a luminance ratio of an image to be displayed, the drive unit applying each of the forward bias voltage and the reverse bias voltage to the anode and the cathode at least twice per a unit time period, and the drive unit applying first, in each unit time period, a bias voltage of which polarity is opposite to a polarity of a bias voltage applied last in the previous unit time period.