Display apparatus including sensor
A display apparatus including a sensor includes: a pixel group including a predetermined number of pixels, each of which includes a pixel circuit and a light-emitting device electrically connected to the pixel circuit; and a sensing pixel including a sensing circuit and a sensing electrode connected to the sensing circuit, where the sensing electrode forms a variable capacitor with respect to a finger, and the sensing circuit is arranged around the pixel circuit of the pixel group.
1. A display apparatus including a sensor, the display apparatus comprising:
a pixel group comprising a plurality of pixels, wherein each of the plurality of pixels includes a pixel circuit and a light-emitting device electrically connected to the pixel circuit; and
a sensing pixel comprising a sensing circuit and a sensing electrode connected to the sensing circuit, wherein the sensing pixel forms a variable capacitor with respect to a finger,
wherein the sensing circuit surrounding pixel circuits of the pixel group, and the sensing electrode covers and overlaps the light-emitting device.
2. The display apparatus of claim 1 , wherein the light-emitting device comprises:
a first electrode connected to the pixel circuit;
a second electrode opposite to the first electrode; and
an emission layer between the first electrode and the second electrode, and
the sensing electrode is disposed on the second electrode of the light-emitting device.
3. The display apparatus of claim 2 , wherein the second electrode overlaps the first electrodes of the plurality of light-emitting devices.
4. The display apparatus of claim 2 , wherein the sensing electrode overlaps the first electrodes of the plurality of light-emitting devices, and
the second electrode comprises at least one opening around the first electrodes of the plurality of light-emitting devices.
5. The display apparatus of claim 4 , further comprising:
an electrode layer in a same layer as the first electrodes, wherein the electrode layer is electrically connected to the sensing circuit, and contacts the sensing electrode via the opening.
6. The display apparatus of claim 1 , wherein the sensing electrode is on the sensing circuit, and electrically connected to the sensing circuit.
7. The display apparatus of claim 1 , further comprising:
a shield line between pixel circuits of the pixel group.
8. The display apparatus of claim 7 , wherein the shield line is a floating line.
9. The display apparatus of claim 7 , wherein a predetermined voltage is applied to the shield line.
10. The display apparatus of claim 7 , wherein the shield line comprises a first shield line extending in a first direction and a second shield line extending in a second shield line extending in a second direction different from the first direction.
11. The display apparatus of claim 1 , wherein the pixel circuits of the pixel group comprises a first pixel circuit and a second pixel circuit adjacent to the first pixel circuit in a first direction, and
wherein the first pixel circuit and the second pixel circuit are symmetrically with one another in the first direction.
12. The display apparatus of claim 11 , wherein the pixel circuits of the pixel group comprises a third pixel circuit adjacent to the first pixel circuit in a second direction different from the first direction and a fourth pixel circuit adjacent to the second pixel circuit in the second direction, and
wherein the first pixel circuit and the third pixel circuit are symmetrically with one another in the second direction, and the second pixel circuit and the fourth pixel circuit are symmetrically with one another in the second direction.
13. The display apparatus of claim 1 , wherein the pixel group comprises at least two pixels.
14. The display apparatus of claim 1 , further comprising:
an encapsulation layer on the light-emitting device.