Patent ID: 9262964
Filing Date: 2016-02-16
CPC Classification: G09G

Claim Text:
1. An organic light emitting diode (OLED) display device including a plurality of pixels to display images, each of the pixels including an OLED, a driving transistor connected to the OLED, and a switching transistor configured to supply data signals to the OLED, the device comprising: a sensor configured to sense at least one voltage associated with a change amount of a mobility of the driving transistor, wherein the at least one voltage includes first and second output voltages sensed from the driving transistor in response to applying first and second data voltages to the driving transistor; a compensation value calculator configured to obtain a change amount of a threshold voltage of the driving transistor based on a sensed change amount of the mobility, wherein the compensation value calculator is further configured to: a data compensator configured to adjust the data signals based on the sensed change amount of mobility and the obtained change amount of the threshold voltage.