ORGANIC LIGHT EMITTING DISPLAY DEVICE AND METHOD OF DRIVING THE SAME

摘要

Disclosed is an organic light emitting display device. The organic light emitting display device includes a display panel including a plurality of pixels formed in intersection areas between a plurality of gate lines, a plurality of data lines, and a plurality of sensing lines, a gate driver supplying a gate signal to the gate lines, a plurality of data driving ICs including a data driver, supplying data voltages to the data lines, and a sensing unit including a plurality of ADCs that each sense characteristic change of a driving transistor included in a corresponding pixel to generate sensing data, a memory storing a gain error and offset error of each ADC, and a timing controller correcting the sensing data on a basis of the gain error and offset error, modulating input data on a basis of the corrected sensing data, and supplying the modulated data to the data driving ICs.

主权项

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; 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.