Patent ID: 7663579
Filing Date: 2010-02-16
Classification: G09G

Abstract:
1. An electroluminescence display device comprising: a data driver for supplying a data current according to a data signal; a first switching device for transferring a data current using a first scan signal; a second switching device for transferring the data current from the first switching device using a second scan signal; a storage device for storing a charge voltage according to the data current transferred from the second switching device; a coupling unit for changing the charge voltage stored in the storage device in accordance with the first scan signal into a changed voltage; a first driving device and a second driving device for generating a driving current in accordance with the changed voltage; and an organic light emitting diode for emitting light in accordance with the driving current, wherein the first switching device has one end supplied with the data current and the other end connected with one end of the second switching device, the second switching device has the other end connected with one end of the coupling unit, the storage device has one end to which a power voltage is connected, the coupling unit has one end connected with the other end of the storage device and the other end to which the first scan signal is input, and gates of the first driving device and the second driving device is connected with each other.