Display device including bridge electrodes with nested voltage transmission lines
A display device includes a substrate including a display area and a peripheral area; a first voltage line disposed on the display area of the substrate, a first voltage being applied to the first voltage line; a second voltage line disposed on the display area of the substrate and extending in a direction parallel to the first voltage line, a second voltage being applied to the second voltage line; a first voltage transmission line disposed on the peripheral area of the substrate and transmitting the first voltage; a second voltage transmission line disposed on the peripheral area of the substrate and transmitting the second voltage; a first bridge electrode electrically connecting the first voltage line and the first voltage transmission line; and a second bridge electrode electrically connecting the second voltage line and the second voltage transmission line.
1 . A display device comprising:
a substrate including a display area and a peripheral area;
a first voltage line disposed on the display area of the substrate, a first voltage being applied to the first voltage line;
a second voltage line disposed on the display area of the substrate and extending in a direction parallel to the first voltage line, a second voltage being applied to the second voltage line;
a first voltage transmission line disposed on the peripheral area of the substrate and surrounding the display area in a plan view, the first voltage transmission line transmitting the first voltage;
a second voltage transmission line disposed on the peripheral area of the substrate, the first voltage transmission line surrounding the second voltage transmission line in the plan view, the second voltage transmission line transmitting the second voltage, wherein a distance between the first voltage transmission line and the display area is larger than a distance between the second voltage transmission line and the display area;
a first bridge electrode disposed on a first edge of the substrate and electrically connecting the first voltage line and the first voltage transmission line; and
a second bridge electrode disposed on a second edge of the substrate and electrically connecting the second voltage line and the second voltage transmission line.
2 . The display device of claim 1 , wherein the first edge and the second edge face each other.
3 . The display device of claim 1 , wherein
the first voltage and the second voltage are constant, and
the first voltage is different from the second voltage.
4 . The display device of claim 1 , wherein
the substrate has a polygonal shape,
each corner part of the substrate has a rounded shape, and
the first bridge electrode and the second bridge electrode are disposed at the each corner part.
5 . The display device of claim 4 , wherein
the first bridge electrode and the second bridge electrode extend in a first direction, and
the first voltage line and the second voltage line extend in a second direction perpendicular to the first direction.
6 . The display device of claim 5 , wherein
the first edge of the substrate includes:
a first corner part;
a second corner part; and
a first straight-line part disposed between the first corner part and the second corner part;
the second edge of the substrate includes:
a third corner part;
a fourth corner part; and
a second straight-line part disposed between the third corner part and the fourth corner part;
the first bridge electrode is disposed on the first corner part and the second corner part, and is not disposed on the third corner part and the fourth corner part, and
the second bridge electrode is disposed on the third corner part and the fourth corner part, and is not disposed on the first corner part and the second corner part.
7 . The display device of claim 6 , wherein
the first voltage line and the first voltage transmission line are electrically connected over the first corner part and the second corner part, and are electrically disconnected over the third corner part and the fourth corner part,
the second voltage line and the second voltage transmission line are electrically connected over the third corner part and the fourth corner part, and are electrically disconnected over the first corner part and the second corner part.
8 . The display device of claim 6 , further comprising:
a third bridge electrode disposed on the first straight-line part of the first edge of the substrate and electrically connecting the first voltage line and the first voltage transmission line; and
a fourth bridge electrode disposed on the second straight-line part of the second edge of the substrate and electrically connecting the first voltage line and the first voltage transmission line, wherein
the third bridge electrode and the fourth bridge electrode extend in the second direction, perpendicular to the first direction.
9 . The display device of claim 8 , wherein the second voltage line and the second voltage transmission line are directly connected on the first straight-line part and the second straight-line part.
10 . The display device of claim 6 , further comprising:
a third bridge electrode disposed on the first straight-line part of the first edge of the substrate and electrically connecting the first voltage line and the first voltage transmission line, wherein
the third bridge electrode extends in the second direction, perpendicular to the first direction, and
the first voltage line and the first voltage transmission line are electrically disconnected on the second straight-line part of the second edge of the substrate.
11 . The display device of claim 10 , wherein the second voltage line and the second voltage transmission line are directly connected on the second straight-line part, and electrically disconnected on the first straight-line part.
12 . The display device of claim 1 , further comprising:
a semiconductor layer disposed on the substrate and including:
a channel, a first region and a second region of a first transistor;
a channel of a first region and a second region of a second transistor; and
a channel, a first region, and a second region of a third transistor;
a gate conductor comprising:
a gate electrode of the first transistor overlapping the channel of the first transistor in the plan view;
a gate electrode of the second transistor overlapping the channel of the second transistor in the plan view; and
a gate electrode of the third transistor overlapping the channel of the third transistor in the plan view; and
a data conductor including a connection electrode electrically connecting a gate electrode of the first transistor and a second region of the second transistor.
13 . The display device of claim 12 , wherein
the first voltage line is electrically connected to the first region of the second transistor, and
the first voltage is a first initialization voltage.
14 . The display device of claim 13 , wherein the first voltage line and the data conductor are disposed on a same layer.
15 . The display device of claim 14 , wherein the first voltage transmission line and the data conductor are disposed on a same layer.
16 . The display device of claim 12 , wherein
the second voltage line is electrically connected to the second region of the third transistor, and
the second voltage is a second initialization voltage.
17 . The display device of claim 16 , wherein the second voltage line and the data conductor are disposed on a same layer.
18 . The display device of claim 17 , wherein the second voltage transmission line and the data conductor are disposed on a same layer.
19 . The display device of claim 12 , wherein
the first bridge electrode, the second bridge electrode, and the gate conductor are disposed on a same layer.
20 . The display device of claim 12 , further comprising:
a data line and a driving voltage line extending in a direction parallel to the first voltage line and the second voltage line, and
the data line, the driving voltage line, and the data conductor are disposed on a same layer.
21 . The display device of claim 20 , wherein the data line and the driving voltage line are disposed between the first voltage line and the second voltage line in the plan view.
22 . The display device of claim 12 , wherein
the display device includes pixels,
each of the pixels includes:
the first transistor;
the second transistor; and
the third transistor, and
the pixels have a symmetrical shape with respect to the second voltage line.