Patent ID: 7573443

Claim:
An electro-luminescence display device, comprising: a plurality of column lines; a plurality of first row lines intersecting the column lines and receiving a first scan signal; a plurality of second row lines intersecting the column lines and receiving a second scan signal; an organic light emitting device formed at pixel areas, the pixel areas defined by the plurality of the column lines and the plurality of the first and second row lines; and a drive switch operable to drive the organic light emitting device, wherein the drive switch comprises: a first switch having a drain terminal connected to the column line, a source terminal connected to a first node, and a gate terminal connected to the first row line; a second switch having a gate terminal connected to the first row line, a drain electrode connected to the first node, and a source terminal; a third switch having a gate terminal connected to the second row line, a drain terminal connected to the source terminal of the second switch, and a source terminal connected to a second node and the drain terminal of the third switch; a drive transistor having a gate terminal connected to the second node, a source terminal to which a high potential voltage is supplied, and a drain terminal connected to the first node; a fourth switch having a gate terminal connected to the second row line, a source terminal connected to the first node, and a drain terminal connected to a anode terminal of the organic light emitting device; and a storage capacitor having a first terminal connected to the source terminal of the drive transistor, and a second terminal connected to the second node, wherein the third switch forms a compensation capacitor to cancel a kickback voltage generated upon a voltage change of the first row line, wherein the second scan signal operates to activate the drive switch later than the first scan signal.