Patent ID: 7773055

Claim:
A display device comprising a plurality of pixels, each pixel comprising: a light emitting element; first and second driving transistors connected between a driving voltage and the light emitting element and supplying a driving current to the light emitting element; a first switching transistor transmitting a data voltage to the first driving transistor; a second switching transistor transmitting the data voltage to the second driving transistor; a first scanning line transmitting a first scanning signal to the first switching transistor; a second scanning line transmitting a second scanning signal to the second switching transistor; a first inverter generating a first inversion voltage having an amplitude that depends on the data voltage and a polarity opposite to the data voltage transmitted to the second driving transistor and applying the first inversion voltage to the first driving transistor; and a second inverter generating a second inversion voltage having an amplitude that depends on the data voltage and a polarity opposite to the data voltage transmitted to the first driving transistor and applying the second inversion voltage to the second driving transistor, wherein the first inverter comprises: a first thin film transistor connected to the driving voltage and having a diode connection; and a second thin film transistor connected between the first thin film transistor and the first scanning line and transmitting the first inversion voltage according to the data voltage, and the second inverter comprises: a third thin film transistor connected to the driving voltage and having a diode connection; and a fourth thin film transistor connected between the third thin film transistor and the second scanning line and transmitting the second voltage according to the data voltage.