Patent ID: 8149230

Claim:
A light emitting display comprising: a substrate; a pixel area defined by scan lines and data lines on the substrate and having a plurality of pixel rows and pixel columns; a first power source line having a first end on a first side of the pixel area and a second end on a third side of the pixel area, for supplying a first power signal to each pixel column of the pixel area; a second power source line having a first end and a second end, for supplying the first power signal to each pixel column of the pixel area from a second side of the pixel area; a third power source line on the substrate for supplying a second power signal to each pixel row; a flexible printed circuit for providing the first power signal to the first and second power source lines via a power supply line thereon; a pad hub on the substrate and connected to the flexible printed circuit comprising a first set of pads connected to the first and second ends of the first power source line and a second set of pads on the substrate and connected to the first and second ends of the second power source line, for receiving the first power signal from the power supply line on the flexible printed circuit; and an impedance compensator connected between the second set of pads on the substrate and the power supply line on the flexible printed circuit for compensating for a difference in a voltage drop between the first power source line and the second power source line.