Patent ID: 8284126

Claim:
An organic light emitting display, comprising: a plurality of pixels, each arranged near intersections of data lines, scan lines, power lines and light emitting control lines; a scan driver configured to supply a scan signal to the scan lines and to supply a light emitting control signal to the light emitting control lines; a control line driver configured to supply a first control signal to first control lines and to supply a second control signal to second control lines; a data driver configured to generate a data signal for the data lines; a sensing unit configured to sense information about at least one of an organic light emitting diode, a threshold voltage of a drive transistor, and mobility of the drive transistor for one or more of the pixels; a switching unit configured to couple one of the sensing unit and the first power source with the power lines; a control block configured to store the sensed information; and a timing controller configured to generate the second data based on the sensed information and a first data received from another circuit, wherein the sensing unit comprises: an electric current source unit in each of a plurality of channels; and an analog-digital converter configured to convert sensed information about deterioration of the organic light emitting diode and threshold voltage and/or mobility of the drive transistor into a first digital value and to convert information about deterioration of the organic light emitting diode into a second digital value.