Patent ID: 9368060
Filing Date: 2016-06-14
CPC Classification: G09G

Claim Text:
1. An organic light emitting diode (OLED) display including a plurality of data lines, a plurality of scan lines, and a plurality of pixels connected to a corresponding data line, a corresponding scan line, a first power source voltage application line, and a second power source voltage application line, wherein the plurality of pixels respectively include first to third subpixels emitting light according to first image data for a first color, second image data for a second color, and third image data for a third color, comprising: a power supplier respectively to supply a first power source voltage and a second power source voltage to the first and second power source voltage application lines; and a power source controller to calculate a reference power source voltage corresponding to a maximum average grayscale by using a distribution for each grayscale of the first to third image data, to calculate a ratio of a current that is a sum of second to fourth currents flowing respectively through the first to third subpixels when the first to third subpixels respectively emit light having a first grayscale value to a first current flowing through the first to third subpixels when the first to third subpixels simultaneously emit light with the first grayscale value, to model a first voltage drop of the first power source voltage and a second voltage drop of the second power source voltage for the first to third subpixels and to reflect the first and second voltage drops to the reference power source voltage to change the second power source voltage.