Patent ID: 8558767
Filing Date: 2013-10-15
Classification: G09G

Abstract:
1. An organic light emitting display comprising: a plurality of pixels at crossing portions of data lines, scan lines, and emission control lines, each of the plurality of pixels comprising an organic light emitting diode for emitting light and a driving transistor for driving the organic light emitting diode; a sensor for sensing degradation information of the organic light emitting diodes and mobility information of the driving transistors; a converter for storing the degradation information of the organic light emitting diodes and the mobility information of the driving transistors and for converting input data to corrected data by utilizing the degradation information and the mobility information; and a data driver for receiving the corrected data output from the converter and for generating data signals utilizing the corrected data to be supplied to the plurality of pixels via the data lines; wherein the sensor comprises sensing circuits, wherein each sensing circuit corresponds to a corresponding one of the data lines; wherein each of the sensing circuits comprises: a current source unit for supplying a first current to a corresponding one of the plurality of pixels; a first current sink unit for sinking a second current from said corresponding one of the plurality of pixels; and a second current sink unit for sinking a third current from said corresponding one of the plurality of pixels.