Organic light emitting diode display

Abstract

An exemplary embodiment provides an organic light emitting diode display including a substrate, a bridge electrode disposed on the substrate, a buffer layer which covers the bridge electrode, a semiconductor layer disposed on the buffer layer, a first gate insulating layer which covers the semiconductor layer in a plan view, a first gate conductor disposed on the first gate insulating layer and which includes a first gate electrode, a second gate insulating layer which covers the first gate conductor, a second gate conductor disposed on the second gate insulating layer, an interlayer-insulating layer which covers the second gate conductor, and a data line disposed on the interlayer-insulating layer. The first gate electrode is directly connected to the bridge electrode, the semiconductor layer is electrically connected to the bridge electrode, and a capacitance exists between the data line and the bridge electrode.

What is claimed is: 
     
         1 . An organic light emitting diode display comprising:
 a substrate;   a scan line disposed on the substrate;   a data line disposed and which crosses the scan line;   a driving voltage line disposed in parallel with the data line and which overlaps a plurality of transistors in a plan view;   a driving transistor which has a first gate electrode and a first electrode connected to the driving voltage line;   an organic light emitting diode connected to the driving transistor;   a second transistor connected to the scan line, the data line, and the first electrode of the driving transistor; and   a third transistor which includes a third gate electrode connected to the scan line and a second electrode connected to the first gate electrode,   wherein the first gate electrode of the driving transistor and the second electrode of the third transistor are connected through a bridge electrode, and   the driving voltage line overlaps the bridge electrode in the plan view.   
     
     
         2 . The organic light emitting diode display of  claim 1 , further comprising:
 a first storage electrode connected to the driving voltage line; and   a second storage electrode which includes the first gate electrode,   wherein the first storage electrode and the second storage electrode overlap each other in the plan view and constitute a storage capacitor.   
     
     
         3 . The organic light emitting diode display of  claim 1 , further comprising:
 an upper gate connector which overlaps the bridge electrode and the second electrode of the third transistor in the plan view,   wherein the upper gate connector is physically connected to the bridge electrode and the second electrode of the third transistor through a contact hole.   
     
     
         4 . The organic light emitting diode display of  claim 1 , further comprising:
 a lower gate connector which overlaps the bridge electrode and the second electrode of the third transistor in the plan view,   wherein the lower gate connector is physically connected to the bridge electrode and the second electrode of the third transistor through a contact hole.   
     
     
         5 . The organic light emitting diode display of  claim 1 , wherein
 the driving voltage line is not overlapped with the bridge electrode in the plan view.