Gate driver and display device including the same
A display device includes gate lines and pixels connected to the gate lines. The display device includes stages which provide gate signals to the gate lines, and first and second gate power lines which transfer a first voltage to the stages. A first stage among the stages includes a first node controller and a first output unit. The first node controller is connected to the second gate power line, and controls a voltage of a first control node. The first output unit is connected to the first gate power line, and outputs a first voltage of the first gate power line as a gate signal in response to a voltage of the first control node.
1 . A display device comprising:
a plurality of pixels formed in a display area;
a first gate driver formed in a first gate circuit area, the first gate driver being coupled to a first gate power line;
a second gate driver formed in the first gate circuit area, the second gate driver being coupled to a second gate power line; and
a first pad formed in a pad area, the first pad receiving a gate power voltage,
wherein the first gate power line and the second gate power line are connected to each other in a first region between the first and second gate drivers and the first pad, and then connected to the first pad, and
wherein the gate power voltage from the first pad is applied to the first gate driver through the first gate power line and the gate power voltage from the first pad is applied to the second gate driver through the second gate power line.
2 . The display device of claim 1 , wherein the first gate driver output emission gate signals to emission gate lines connected to the plurality of pixels, and the second gate driver output write gate signals to write gate lines connected to the plurality of pixels.
3 . The display device of claim 1 , wherein the second gate driver is located between the display area and the first gate driver.
4 . The display device of claim 1 , further comprising:
a third gate driver formed in the first gate circuit area, the third gate driver being coupled to a third gate power line and a fourth gate power line; and
a second pad formed in the pad area,
wherein the third gate power line and the fourth gate power line are connected to each other in a second region between the third gate driver and the second pad, and then connected to the second pad.
5 . The display device of claim 4 , wherein the second gate driver is located between the display area and the first and third gate drivers, and the third gate driver is located between the second gate driver and the first gate driver.
6 . The display device of claim 4 , wherein the third gate driver is further coupled to a fifth gate power line, and the fifth gate power line is connected to the third and fourth gate power lines in the second region.
7 . The display device of claim 6 , wherein the fifth gate power line is connected to the second gate power line at an upper side of the first gate circuit area.
8 . The display device of claim 7 , wherein the fifth gate power line is further connected to the first gate power line at the upper side of the first gate circuit area.
9 . The display device of claim 1 , further comprising:
a third gate driver including a plurality of stages,
wherein the plurality of stages includes a first stage and a second stage adjacent to the first stage,
wherein the first stage includes a ninth transistor electrically connected between a third gate power line and an output terminal of the first stage,
wherein the second stage includes a ninth transistor electrically connected between a fourth gate power line and an output terminal of the second stage.
10 . The display device of claim 1 , further comprising:
a fourth gate driver formed in a second gate circuit area, the fourth gate driver being coupled to the third gate power line and a fourth gate power line; and
a third pad formed in the pad area,
wherein the first gate circuit area is located at a first side of the display are,
wherein the second gate circuit area is located at a second side of the display area that is opposite to the first side.
11 . The display device of claim 10 , wherein the third gate power line and the fourth gate power line are connected to the third pad in the pad area.
12 . The display device of claim 1 , further comprising:
a fourth gate driver formed in a second gate circuit area, the fourth gate driver being coupled to a third gate power line, a fourth gate power line and a fifth gate line; and
a third pad formed in the pad area,
wherein the first gate circuit area is located at a first side of the display are,
wherein the second gate circuit area is located at a second side of the display area that is opposite to the first side.
13 . The display device of claim 12 , wherein the third gate power line, the fourth gate power line and the fifth gate line are connected to the third pad in the pad area.