Patent ID: 8773406
Filing Date: 2014-07-08
Classification: G09G

Abstract:
1. An organic electroluminescent display comprising: a data driver sequentially supplying a data signal through a plurality of data lines; a scan driver sequentially supplying a scan signal through a plurality of scan lines, the plurality of scan lines comprising a current scan line and a prior scan line; a first switching element including a control electrode, electrically coupled to the current scan line, to transfer the data signal from the data line; a first driving transistor including a control electrode, electrically coupled to the first switching element, to control a driving current of a first voltage line; a first capacitive element including a first electrode electrically coupled to the first voltage line and a second electrode electrically coupled to a control electrode of the first driving transistor; an organic electroluminescent element, electrically coupled to the first driving transistor and to a third volfage line, to display an image in response to being supplied with a current from the first driving transistor; a second voltage line to supply a reverse bias voltage from a second voltage line to the organic electroluminescent element; and a second switching element driven by signals from the prior scan time, the second switching element including a first electrode electrically coupled between the first driving transistor and the organic electroluminescent element, and a second electrode electrically coupled to the second voltage line; wherein the second switching element further includes a control electrode electrically coupled to and having a conductive state directly responsive to the prior scan line.