Patent ID: 8952951
Filing Date: 2015-02-10
Classification: G09G

Abstract:
1. An organic light emitting diode display, comprising: a plurality of pixels including a plurality of organic light emitting diodes and a plurality of driving transistors for supplying a driving current to the respective organic light emitting diodes; a compensator for receiving a predetermined voltage applied to a gate electrode of the respective driving transistors, finding a threshold voltage, mobility, and a change of mobility of the driving transistors, and determining a compensation amount caused by an input image data signal based on said threshold voltage, said mobility and said mobility deviation while sinking a predetermined current to a path of a driving current to the organic light emitting diode through a data line connected to the pixels, and controlling a gamma according to the change of the mobility; a timing controller for receiving the compensation amount, correcting the input image data signal, and transmitting the corrected image data signal; and a data driver for generating a data voltage based on the corrected image data signal and the gamma, and supplying the data voltage to the pixels.