| 摘要 |
Disclosed is an organic light-emitting display device and operating method thereof that may include an organic light-emitting diode, a first transistor controlled by a sensing signal and connected to a data line, a second transistor controlled by a scanning signal and connected to the data line, and a driving transistor having first to third nodes, wherein a reference voltage is applied to the first node through the first transistor, a data voltage is applied to the second node through the second transistor, and the third node is connected to a driving voltage line. |
| 主权项 |
1. An organic light-emitting display device comprising:
a display panel including a plurality of data lines, a plurality of first gate lines and a plurality of second gate lines, which define a plurality of pixels; a data driver supplying a data signal through at least one of the plurality of data lines; a first gate driver supplying a sensing signal through at least one of the plurality of first gate lines that cross the plurality of data lines in the display panel; a second gate driver supplying a scanning signal through at least one of the plurality of second gate lines that are substantially parallel with the plurality of first gate lines in the display panel; and a timing controller controlling driving timings of the data driver, the first gate driver and the second gate driver, wherein one of the plurality of pixels includes an organic light-emitting diode, a driving transistor having a first node, a second node and a third node, a first transistor controlled by the sensing signal and connected between the respective data line and the first node of the driving transistor, a second transistor controlled by the scanning signal and connected between the respective data line and the second node of the driving transistor, and a storage capacitor connected between the first and second nodes of the driving transistor; and a sensing unit sensing a threshold voltage or a mobility of the driving transistor, wherein the sensing unit is connected to a driving voltage line connected to the third node of the driving transistor, the sensing unit comprises: an analog-to-digital converter measuring a voltage of a sensing node connected to the driving voltage line, and a switch switching a connection between a precharge voltage supply node and the sensing node and switching a connection between a connection node of the analog-to-digital converter and the sensing node. |
