Display device
A display device includes a display unit including transistors disposed in a display area and signal lines arranged in a non-display area located along an edge of the display area, at least one of the signal lines being electrically connected to the transistors; and an input sensing unit disposed over the display unit and including sensing electrodes disposed on the display area, sensing lines arranged on the non-display area, and a first dummy pattern disposed on the non-display area and spaced apart from the sensing electrodes as compared with the sensing line, wherein the first dummy pattern overlaps a first signal line of the signal lines, the first signal line being spaced farthest from the display area, a planar shape of an overlap pattern formed by overlapping the first dummy pattern and the first signal line coincides with a planar shape of an alignment mark.
1. A display device, comprising:
a display unit comprising transistors disposed in a display area, signal lines arranged in a non-display area located along an edge of the display area, and a first dummy line pattern disposed in the non-display area and spaced apart from the display area, at least one of the signal lines being electrically connected to the transistors; and
an input sensing unit disposed over the display unit, the input sensing unit comprising sensing electrodes disposed on the display area and sensing lines arranged on the non-display area, at least one of the sensing lines being electrically connected to the sensing electrodes,
wherein:
the first dummy line pattern overlaps a first sensing line of the sensing lines, the first sensing line being spaced farthest from the display area;
a planar shape of an overlap pattern formed by overlapping the first dummy line pattern and the first sensing line coincides with a planar shape of an alignment mark;
the alignment mark comprises a first portion having a first area and a second portion having a second area and protruding from the first portion; and
a planar shape of a non-overlap portion of the first dummy line pattern that does not overlap the first sensing line, is the same as a planar shape of the second portion of the alignment mark.
2. The display device of claim 1 , wherein the first dummy line pattern is isolated from the signal lines and the sensing lines.
3. The display device of claim 1 , wherein the first sensing line is extended along an edge of the input sensing unit.
4. The display device of claim 1 , wherein
each of the transistors comprises:
a semiconductor layer comprising a channel;
a first conductive layer disposed on the semiconductor layer and comprising a gate electrode; and
a second conductive layer disposed on the first conductive layer and comprising a source electrode and a drain electrode; and
wherein the first conductive layer comprises the first dummy line pattern.
5. The display device of claim 1 , wherein
each of the transistors comprises:
a semiconductor layer comprising a channel;
a first conductive layer disposed on the semiconductor layer and comprising a gate electrode; and
a second conductive layer disposed on the first conductive layer and comprising a source electrode and a drain electrode; and
wherein the second conductive layer comprises the first dummy line pattern.
6. The display device of claim 5 , wherein:
the display unit further comprises a second dummy line pattern disposed on the non-display area and spaced apart from the display areas;
the second dummy line pattern overlaps the first sensing line;
the alignment mark further comprises a third portion having a third area and protruding from the first portion; and
a planar shape of the overlap pattern further comprises overlapping the first dummy line pattern, the second dummy line pattern, and the first sensing line that coincides with a planar shape of the alignment mark.
7. The display device of claim 1 , wherein:
the input sensing unit further comprises a first dummy pattern disposed on the non-display area and spaced apart from the sensing electrodes;
the first dummy pattern overlaps the first dummy line pattern;
the overlap pattern further comprises overlapping the first dummy pattern, the first dummy line pattern, and the first sensing line;
the first dummy pattern is smaller than the second portion of the alignment mark; and
the first dummy line pattern is smaller than the second portion of the alignment mark.
8. A display device, comprising:
a substrate comprising a display area and a non-display area located at one side of the display area;
a circuit element layer disposed on the substrate, the circuit element layer comprising a transistor overlapping the display area, signal lines disposed on the non-display area, and a first dummy line pattern, at least one of the signal lines being electrically connected to the transistor; and
a display element layer disposed on the display area, the display element layer comprising a light emitting element overlapping the display area and electrically connected to the transistor,
wherein:
the first dummy line pattern overlaps a first signal line of the signal lines, spaced farthest from the display area, in a thickness direction of the substrate, and is isolated from the first signal line;
a planar shape of an overlap pattern formed by overlapping the first dummy line pattern and the first signal line coincides with a planar shape of an alignment mark;
the alignment mark comprises a first portion having a first area and a second portion having a second area and protruding from the first portion; and
a planar shape of a non-overlap portion of the first dummy line pattern that does not overlap the first signal line, is the same as a planar shape of the second portion of the alignment mark.
9. The display device of claim 8 , wherein the circuit element layer comprises:
a semiconductor layer disposed on the display area of the substrate;
a first insulating layer disposed on the semiconductor layer and the substrate;
a first conductive layer disposed on the first insulating layer and comprising a gate electrode overlapping the semiconductor layer, and the first dummy line pattern;
a second insulating layer disposed on the first conductive layer; and
a second conductive layer disposed on the second insulating layer and comprising a source electrode or a drain electrode overlapping the semiconductor layer, and the signal lines.
10. The display device of claim 8 , wherein the circuit element layer comprises:
a semiconductor layer disposed on the display area of the substrate;
a first insulating layer disposed on the semiconductor layer and the substrate;
a first conductive layer disposed on the first insulating layer and comprising a gate electrode overlapping the semiconductor layer, and the signal lines;
a second insulating layer disposed on the first conductive layer; and
a second conductive layer disposed on the second insulating layer and comprising a source electrode or a drain electrode overlapping the semiconductor layer, and the first dummy line pattern.