Display device, power source generator device, and driving method of an OLED pixel

摘要

A display device having a particular power controller circuit is disclosed. In one aspect, the display includes a plurality of pixels, and a power controller for supplying a first power source voltage and a second power source voltage for providing a driving current of the plurality of pixels wherein the power controller connects at least one of a first high level voltage, a ground, and a capacitor to a first node connected to the first power source voltage, and connects one of a second high level voltage and the ground to a second node connected to the second power source voltage.

主权项

1. A display device, comprising:
a plurality of pixels; an organic light-emitting diode (OLED) included in each of the pixels; and a power controller including a capacitor for eliminating noise caused by parasitic inductance of a power cable and configured to supply a first power source voltage and a second power source voltage for providing a driving current of the plurality of pixels, wherein the power controller connects at least one of a first high level voltage, a ground, and the capacitor to a first node connected to the first power source voltage, and connects one of a second high level voltage and the ground to a second node connected to the second power source voltage; wherein the power controller connects the first high level voltage to the first node and connects the ground to the second node so as to cause the pixels to emit light; wherein, when the pixels emit light, the power controller blocks the connection between the second node and the ground and connects the capacitor to the first node so as to charge the capacitor; wherein when the power controller connects the ground to the first node and connects the second high level voltage to the second node so as to reset a driving voltage of each OLED then the power controller blocks the connection between the first node and the ground and connects the capacitor to the first node to discharge the capacitor.