Display device
A display device includes: a data line; a pixel circuit connected to the data line; a light emitting element connected to the pixel circuit; a first connection electrode under the data line; a sensing circuit connected to the first connection electrode; a light receiving element connected to the sensing circuit; and a receive line under the first connection electrode and connected to the first connection electrode.
1 . A display device comprising:
a data line;
a pixel circuit connected to the data line;
a light emitting element connected to the pixel circuit;
a first connection electrode under a layer at which the data line is located;
a sensing circuit connected to the first connection electrode;
a light receiving element connected to the sensing circuit; and
a receive line under a layer at which the first connection electrode is located and connected to the first connection electrode.
2 . The display device of claim 1 , wherein the receive line is under the sensing circuit.
3 . The display device of claim 1 , further comprising
a lower metal layer under the pixel circuit,
wherein the receive line is in a same layer as the lower metal layer.
4 . The display device of claim 3 , wherein the receive line is separated from the lower metal layer.
5 . The display device of claim 3 , wherein the pixel circuit includes:
a first transistor including a first electrode connected to a first power line, a second electrode connected to an anode of the light emitting element, and a control electrode connected to a first node;
a second transistor including a first electrode connected to the data line, a second electrode connected to the first electrode of the first transistor, and a control electrode connected to a write scan line; and
a capacitor connected to the first power line and the first node, and
wherein the lower metal layer is under the first transistor.
6 . The display device of claim 1 , further comprising:
a (1-1)-th connection electrode on the pixel circuit; and
a (2-1)-th connection electrode on the (1-1)-th connection electrode and connected to the (1-1)-th connection electrode,
wherein the data line is on the (2-1)-th connection electrode and connected to the (2-1)-th connection electrode.
7 . The display device of claim 6 , wherein the first connection electrode is in a same layer as the (1-1)-th connection electrode.
8 . The display device of claim 6 , further comprising:
a first shielding electrode on the first connection electrode and overlapping a portion of the receive line in a plan view.
9 . The display device of claim 8 , wherein the first shielding electrode is in a same layer as the (2-1)-th connection electrode.
10 . The display device of claim 8 , further comprising:
a second shielding electrode on the first shielding electrode and overlapping a portion of the receive line in the plan view.
11 . The display device of claim 10 , wherein the second shielding electrode is in a same layer as the data line and adjacent to the data line.
12 . The display device of claim 10 , wherein the second shielding electrode is connected to the first shielding electrode.
13 . The display device of claim 10 , wherein the first and second shielding electrodes receive a constant voltage.
14 . The display device of claim 10 , further comprising:
a reset line connected to the sensing circuit and configured to receive a reset voltage.
15 . The display device of claim 14 , wherein the first and second shielding electrodes are connected to the reset line.
16 . The display device of claim 14 , wherein the reset line is in a same layer as the first connection electrode.
17 . The display device of claim 1 , further comprising:
a dummy electrode on the first connection electrode and connected to the first connection electrode.
18 . A display device comprising:
a data line;
a pixel circuit connected to the data line;
a light emitting element connected to the pixel circuit;
a lower metal layer under the pixel circuit;
a receive line in a same layer as the lower metal layer;
a sensing circuit overlapping the receive line; and
a light receiving element connected to the sensing circuit.
19 . The display device of claim 18 , further comprising:
a first shielding electrode on the receive line and overlapping a portion of the receive line in a plan view; and
a second shielding electrode on the first shielding electrode and overlapping a portion of the receive line in the plan view.
20 . The display device of claim 19 , wherein the second shielding electrode is in a same layer as the data line,
wherein the first shielding electrode is under the data line, and
wherein the first and second shielding electrodes are configured to receive a constant voltage.
21 . An electronic device comprising a display device for providing images:
wherein the display device comprises:
a data line;
a pixel circuit connected to the data line;
a light emitting element connected to the pixel circuit;
a first connection electrode under a layer at which the data line is located;
a sensing circuit connected to the first connection electrode;
a light receiving element connected to the sensing circuit; and
a receive line under a layer at which the first connection electrode is located and connected to the first connection electrode.