Patent ID: 9095030
Filing Date: 2015-07-28
Classification: G09G,H05B,Y02B

Abstract:
1. A pixel, comprising: an organic light emitting diode; an emission control line supplies an emission control signal, a control line supplies a control signal, and a scan line supplies a scan signal, the emission control signal, the control signal, and the scan signal being overlapped during a period; a first transistor having a first electrode connected to a power line receiving a first power, the first power changing among an initial voltage, a reference voltage, and a high voltage, the first transistor controlling an amount of current supplied to the organic light emitting diode; a second transistor connected between a data line and a second node, the second transistor turned on when a scan signal is supplied to a scan line; a third transistor connected between a first node and a second electrode of the first transistor, the first node coupled to a gate electrode of the first transistor, and the third transistor having a turn-on time partially overlapping the turn-on time of the second transistor; a fourth transistor connected between the second node and the power line, the fourth transistor having a turn-on time not overlapping the turn-on time of the second transistor; and a storage capacitor connected between the first node and the second node, wherein the first power changes from the initial voltage to the reference voltage to the high voltage, and wherein the initial voltage is less than the reference voltage and the reference voltage is less than the high voltage, and wherein, when the high voltage is supplied to the power line, the supply of the emission control signal to the emission control line is stopped, and the high voltage, supplied to the power line, is supplied to the second node and the first electrode of the first transistor to control an amount of current flowing from the high voltage to a power supply through the organic light emitting diode.