Organic light emitting diode display including a gate insulating layer supporting a driving voltage line and a data line
An organic light emitting diode (OLED) display including: a substrate; a semiconductor layer disposed on the substrate and including a switching semiconductor layer and a driving semiconductor layer connected to the switching semiconductor layer; a first gate insulating layer disposed on the semiconductor layer; a switching gate electrode and a driving gate electrode disposed on the first gate insulating layer and respectively overlapping with the switching semiconductor layer and the driving semiconductor layer; a second gate insulating layer disposed on the switching gate electrode and the driving gate electrode; a driving voltage line configured to transmit a driving voltage and disposed on the second gate insulating layer; an interlayer insulating layer disposed on the driving voltage line and the second gate insulating layer; and a data line configured to transmit a data signal and disposed on the interlayer insulating layer.
1. An organic light emitting diode (OLED) display, comprising:
a substrate;
a semiconductor layer disposed on the substrate and comprising a switching semiconductor layer and a driving semiconductor layer connected to the switching semiconductor layer;
a first gate insulating layer disposed on the semiconductor layer;
a switching gate electrode and a driving gate electrode disposed on the first gate insulating layer and respectively overlapping with the switching semiconductor layer and the driving semiconductor layer;
a second gate insulating layer disposed on the switching gate electrode and the driving gate electrode;
a driving voltage line configured to transmit a driving voltage and disposed on the second gate insulating layer;
an interlayer insulating layer disposed on the driving voltage line and the second gate insulating layer; and
a data line configured to transmit a data signal and disposed on the interlayer insulating layer.
2. The organic light emitting diode (OLED) display of claim 1 , further comprising:
a storage capacitor overlapping with the driving gate electrode, wherein the storage capacitor comprises a first storage capacitive plate as the driving gate electrode; and
a second storage capacitive plate overlapping with the first storage capacitive plate and disposed on the second gate insulating layer.
3. The organic light emitting diode (OLED) display of claim 2 , wherein the second storage capacitive plate comprises an enlarged portion of the driving voltage line.
4. The organic light emitting diode (OLED) display of claim 3 , wherein the driving semiconductor layer is bent.
5. The organic light emitting diode (OLED) display of claim 4 , further comprising:
a compensation thin film transistor configured to compensate a threshold voltage of the driving transistor and connected to the driving transistor; and
a connection member formed with the same layer as the data line and connecting the driving gate electrode and a compensation semiconductor layer of the compensation thin film transistor.
6. The organic light emitting diode (OLED) display of claim 5 , wherein the driving gate electrode is connected to the connection member through a contact hole disposed in a capacitive opening disposed in the second storage capacitive plate, the second gate insulating layer, and the interlayer insulating layer.
7. The organic light emitting diode (OLED) display of claim 6 , further comprising:
a protective layer disposed on the interlayer insulating layer and the data line; and
an organic light emitting diode (OLED) disposed on the protective layer.
8. An organic light emitting diode (OLED) display, comprising:
a semiconductor layer disposed on the substrate and comprising a switching semiconductor layer and a driving semiconductor layer connected to the switching semiconductor layer;
a gate insulating layer disposed on the semiconductor layer;
a driving voltage line configured to transmit a driving voltage;
a data line configured to transmit a data signal;
an interlayer insulating layer to space-apart the driving voltage line and the data line,
a switching gate electrode overlapping the switching semiconductor layer disposed on the gate insulating layer;
a driving gate electrode overlapping the driving semiconductor layer disposed on the gate insulating layer;
a compensation thin film transistor configured to compensate a threshold voltage of the driving transistor and connected to the driving transistor; and
a connection member connecting the driving gate electrode and the compensation semiconductor layer of the compensation thin film transistor,
wherein:
the gate insulating layer supports the driving voltage line, the data line, and the interlayer insulating layer; and
the driving semiconductor layer comprises the connection member.
9. The OLED display of claim 8 , further comprising:
a substrate to support the semiconductor layer.
10. The OLED display of claim 8 , wherein the interlayer insulating layer is disposed on the driving voltage line.
11. The OLED display of claim 8 , wherein the interlayer insulating layer is disposed on the data line.
12. The OLED display of claim 8 , wherein the driving voltage line comprises an enlarged portion to form a storage capacitive plate.
13. The organic light emitting diode (OLED) display of claim 8 , wherein the driving semiconductor layer is bent.
14. The OLED display of claim 8 , further comprising:
a second gate insulating layer disposed on the switching gate electrode and the driving gate electrode.
15. The OLED display of claim 8 , further comprising:
a protective layer disposed on the interlayer insulating layer and the data line; and
an organic light emitting diode (OLED) disposed on the protective layer.