Patent ID: 8319707
Filing Date: 2012-11-27
Classification: G09G

Abstract:
1. An organic light emitting display, comprising: a plurality of pixels located 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 control signal to 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 deterioration of an organic light emitting diode, voltage threshold of a drive transistor, and mobility of the drive transistor via feedback lines, the organic light emitting diode and the drive transistor being in each of the pixels; 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 supplied from another circuit, wherein the sensing unit comprises: an electric current sink unit for each of a plurality of channels, each sink unit configured to receive an electric current from a selected one of the pixels; an electric current source unit for each of the channels, each source unit configured to supply an electric current to the selected pixel; and an analog-digital converter configured to generate a first digital value based on information of threshold voltage and/or mobility received from the electric current sink unit and to generate a second digital value based on information of deterioration of the organic light emitting diode received from the electric current source unit.