Patent ID: 9620574
Date: 2017-04-11
CPC Classifications: G09G,H01L

Claim:
1. An organic light emitting diode display, comprising: a substrate; a scan line disposed on the substrate and transmits a scan signal; a data line and a driving voltage line that each intersects the scan line and respectively transmits a data voltage and a driving voltage; a switching transistor connected to the scan line and the data line; a driving transistor connected to the switching transistor; a compensation transistor that is connected to a driving drain electrode of the driving transistor and is turned on by the scan signal to compensate for a threshold voltage of the driving transistor; a first data connecting member that connects a compensation drain electrode of the compensation transistor and a driving gate electrode of the driving transistor; and an organic light emitting diode electrically connected to the driving transistor, wherein one end of the first data connecting member is connected to the compensation drain electrode through a first contact hole, a switching source electrode of the switching transistor is connected to the data line through a second contact hole, and a first side wall of each of the first contact hole and the second contact hole is positioned within an insulating layer opening through which the compensation drain electrode and the switching source electrode are simultaneously exposed.