Patent ID: 8026909

Claim:
An electro-luminescence display device comprising: an electro-luminescence panel including a pixel defined by a data line to receive data signals crossing a scan line to receive scan signals; and a current amplifier connected to one terminal of the data line to apply an amplified current made by amplifying an input current prior to an input of the data signals to the data line, wherein the current amplifier includes: first switch and second switch connected in parallel to the data line; a current amplifying unit connected to the first switch: and a current source connected to the current amplifying unit and the second switch, wherein the current amplifying unit includes: first amplifying transistor having a first gate electrode, a first source electrode and a first drain electrode; second amplifying transistor having a second gate electrode. a second source electrode and a second drain electrode: third amplifying transistor having a third gate electrode, a third source electrode and a third drain electrode: and fourth amplifying transistor having a fourth gate electrode, a fourth source electrode and a fourth drain electrode, wherein the first and second source electrodes are connected to a high voltage source, the first drain electrode is connected to the first gate electrode, second gate electrodes and the current source, the third source electrode is connected to the second drain electrode. the third gate electrode is connected to the fourth gate electrode, the third drain electrode and fourth drain electrode are connected to a low voltage source: and the fourth source electrode is connected to the first switch.