Display device having a driving voltage line
A display device includes a plurality of pixels, wherein a first pixel of the plurality of pixels includes: a scan line extending in a first direction; a data line extending in a second direction intersecting the first direction; a switching thin film transistor (TFT) connected to the scan line and the data line; a driving TFT connected to the switching TFT and comprising a driving gate electrode; a storage capacitor comprising the driving gate electrode as a first electrode and a second electrode arranged above the first electrode and overlapping the first electrode; a horizontal driving voltage line extending from the second electrode in the first direction; and a vertical driving voltage line extending from the second electrode in the second direction, wherein the horizontal driving voltage line, the vertical driving voltage line, and the data line are arranged over a same layer.
1. A display device comprising a plurality of pixels,
wherein a first pixel of the plurality of pixels comprises:
a scan line extending in a first direction;
a data line extending in a second direction;
a switching thin film transistor (TFT) connected to the scan line and the data line;
a driving TFT connected to the switching TFT and comprising a driving gate electrode;
a storage capacitor comprising the driving gate electrode as a first electrode and a second electrode arranged above the first electrode and overlapping the first electrode;
a horizontal driving voltage line extending from the second electrode in the first direction; and
a vertical driving voltage line extending from the second electrode in the second direction,
wherein the horizontal driving voltage line, the vertical driving voltage line, and the data line are arranged over a same layer.
2. The display device of claim 1 , wherein the first pixel of the plurality of pixels further comprises a connection line arranged over a different layer from the data line,
wherein the data line comprises a first data line and a second data line that are spaced apart from each other, and
wherein the first data line and the second data line are connected to the connection line through a first contact hole and a second contact hole, respectively.
3. The display device of claim 2 , wherein the horizontal driving voltage line extends in the first direction by extending through a space between the first data line and the second data line.
4. The display device of claim 2 , wherein the horizontal driving voltage line, the vertical driving voltage line, and the second electrode are integrally formed together.
5. The display device of claim 2 , wherein the horizontal driving voltage line is connected to a second electrode of a storage capacitor of a second pixel neighboring the first pixel.
6. The display device of claim 2 , wherein the connection line is arranged below the data line with at least one insulating layer disposed between the connection line and the data line.
7. The display device of claim 2 , wherein the connection line is arranged over a same layer as the driving gate electrode.
8. The display device of claim 1 , wherein the first pixel of the plurality of pixels further comprises a connection line arranged over a different layer from the horizontal driving voltage line,
wherein the horizontal driving voltage line comprises a first horizontal driving voltage line and a second horizontal driving voltage line that are spaced apart from each other, and
wherein the first horizontal driving voltage line and the second horizontal driving voltage line are connected to the connection line through a contact hole.
9. The display device of claim 8 , wherein the data line extends in the second direction by extending through a space between the first horizontal driving voltage line and the second horizontal driving voltage line.
10. The display device of claim 8 , wherein the first horizontal driving voltage line is connected to a second horizontal driving voltage line of a second pixel neighboring the first pixel.
11. The display device of claim 8 , wherein the connection line is arranged below the horizontal driving voltage line with at least one insulating layer disposed between the connection line and the horizontal driving voltage line.
12. The display device of claim 8 , wherein the connection line is arranged over a same layer as the driving gate electrode.
13. The display device of claim 1 , wherein the driving TFT of the first pixel further comprises a driving semiconductor layer at least partially overlapping the driving gate electrode and having a bent shape, and
wherein a shape of the driving TFT of the first pixel is the same as a shape of a driving TFT of a second pixel that moves in parallel in the first direction, the second pixel neighboring the first pixel.
14. The display device of claim 1 , wherein the first pixel comprises an organic light emitting diode (OLED) electrically connected to the driving TFT.
15. The display device of claim 1 , wherein the driving gate electrode and the first electrode are integrally formed as a same body.
16. The display device of claim 1 , wherein the data line is disposed on a same layer on which the horizontal driving voltage line and the vertical driving voltage line are disposed.
17. A display device comprising a plurality of pixels,
wherein a first pixel of the plurality of pixels comprises:
a scan line extending in a first direction;
a data line extending in a second direction intersecting the first direction;
a switching thin film transistor (TFT) connected to the scan line and the data line;
a driving TFT connected to the switching TFT and comprising a driving gate electrode;
a storage capacitor comprising the driving gate electrode as a first electrode and a second electrode arranged above the first electrode and overlapping the first electrode;
and
a first vertical driving voltage line integrally formed the second electrode and extending in the second direction,
wherein a second pixel adjacent to the first pixel in the first direction comprises a second vertical driving voltage line extending in the second direction;
wherein the first vertical driving voltage line and the second vertical driving voltage line are connected to a connection line through a first contact hole and a second contact hole respectively, the connection line is arranged over a different layer from the first vertical driving voltage line,
wherein the first vertical driving voltage line, the second vertical driving voltage line, and the data line are arranged over a same layer.
18. The display device of claim 17 , wherein a length of the connection line extending in the first direction shorter than a length of the scan line extending in the first direction.
19. The display device of claim 17 , wherein the connection line is arranged on a same layer as the driving gate electrode.
20. The display device of claim 17 , wherein the driving TFT of the first pixel further comprises a driving semiconductor layer at least partially overlapping the driving gate electrode and having a bent shape, and
wherein a shape of the driving TFT of the first pixel is symmetrical with a shape of a driving TFT of the second pixel.