Patent ID: 9202411
Filing Date: 2015-12-01
Classification: G09G

Abstract:
1. An organic light emitting display device comprising: a display panel configured to comprise a plurality of pixels that are respectively formed in a plurality of intersection areas between a plurality of gate lines, a plurality of data lines, and a plurality of sensing lines; a gate driver configured to supply a gate signal to the plurality of gate lines; a plurality of data driving ICs configured to comprise a data driver, which respectively supplies data voltages to the plurality of data lines, and a sensing unit comprising a plurality of analog-to-digital converters (ADCs) that each sense a characteristic change of a driving transistor, comprised in a corresponding pixel, through a corresponding sensing line to generate sensing data; a memory configured to store a gain error and an offset error of each of the plurality of ADCs, the gain error and the offset error of each of the plurality of ADCs being calculated based on output data of each ADC when the test voltage is applied to the sensing line; and a timing controller configured to correct the sensing data on a basis of the gain error and the offset error, modulate input data on a basis of the corrected sensing data, and supply the modulated data to the plurality of data driving ICs.