Display device

1. A display device comprising:

a display panel including a substrate, wherein the display panel is divided into a first display region, in which a plurality of first pixels is disposed, and a second display region, in which a plurality of second pixels is disposed; and

a sensor overlapping the second display region of the display panel,

wherein the second display region includes a plurality of unit pixel blocks, each including two by two second pixels adjacent to each other in a first direction and in a second direction intersecting the first direction, and a transmissive region through which light is transmitted,

wherein, in a plan view, a distance between two unit pixel blocks adjacent to each other in the first direction is greater than a distance between two unit pixel blocks adjacent to each other in an oblique direction inclined to the first direction, and

wherein, in at least one region of the second display region, which are surrounded between the unit pixel blocks, a ratio of areas occupied by a region of the second pixels and the transmissive region is about 2:9,

wherein the display panel further comprises:

a line part disposed between the unit pixel blocks; and

a light blocking pattern disposed on the substrate in at least one region of the second display region,

wherein the light blocking pattern overlaps the line part,

wherein the transmissive region includes a plurality of unit transmissive blocks, each having substantially a circular shape,

wherein each of the first and second pixels comprises a first electrode, an emitting layer disposed on the first electrode, and a second electrode disposed on the emitting layer, and

wherein the second electrode is not disposed in the unit transmissive blocks.

2. The display device of claim 1 , wherein when the distance between the two unit pixel blocks adjacent to each other in the first direction is a, the distance between the two unit pixel blocks adjacent to each other in the oblique direction is √2a/2.

3. The display device of claim 2 , wherein the distance between the two unit pixel blocks adjacent to each other in the first direction is equal to the distance between two unit pixel blocks adjacent to each other in the second direction.

4. The display device of claim 3 , wherein

the second pixels are not disposed in the transmissive region, and

the transmissive region is disposed between the two unit pixel blocks adjacent to each other in the first direction, between two unit pixel blocks adjacent to each other in the second direction, and between the two unit pixel blocks adjacent to each other in the oblique direction.

5. The display device of claim 4 , wherein

the line part includes a conductive line connecting the two unit pixel blocks adjacent to each other in the oblique direction,

wherein the line part extends along the oblique direction.

6. The display device of claim 5 , wherein each of the unit transmissive blocks is surrounded by the two unit pixel blocks adjacent to each other in the first direction, the two unit pixel blocks adjacent to each other in the second direction, and the line part.

7. The display device of claim 6 , wherein the line part does not overlap the unit transmissive blocks.

8. The display device of claim 7 , wherein

the light blocking pattern is disposed between the substrate and the line part.

9. The display device of claim 8 , wherein the light blocking pattern includes an opaque conductive material.

10. The display device of claim 9 , wherein the light blocking pattern is electrically connected to the line part.

11. The display device of claim 9 , wherein

each of the second pixels includes a pixel circuit which is disposed on the substrate and includes a transistor,

wherein the light blocking pattern is disposed between the substrate and the pixel circuit.

12. The display device of claim 3 , wherein

the transmissive region includes an insulating layer disposed on the substrate, and

an opening is defined through the insulating layer.

13. The display device of claim 3 , wherein the second display region is disposed to overlap at least a portion of the sensor to allow light to pass therethrough to the sensor.

14. The display device of claim 13 , wherein the sensor includes at least one selected from a camera, a proximity sensor, an illuminance sensor, a gesture sensor, a motion sensor, a fingerprint recognition sensor, and a biometric sensor, or a combination thereof.

15. The display device of claim 1 , wherein a density of the first pixels in the first display region is higher than a density of the second pixels in the second display region.

16. The display device of claim 15 , wherein the second display region has a size smaller than a size of the first display region, and is connected to the first display region.

17. The display device of claim 1 , wherein

the first display region includes a first pixel region in which each of the first pixels is disposed,

the second display region includes a second pixel region in which each of the second pixels is disposed, and

the first pixel region and the second pixel region have a same size as each other.

18. A display device comprising:

a sensor which senses incident light; and

a display panel overlapping the sensor, wherein the display panel displays an image, and the display panel is divided into a first display region, a second display region having a light transmittance higher than a light transmittance of the first display region, and a non-display region surrounding a periphery of the first and second display regions,

wherein the display panel includes:

a substrate;

a plurality of first pixels disposed on the substrate in the first display region; and

a plurality of second pixels disposed on the substrate in the second display region,

wherein the second display region includes a plurality of unit pixel blocks, each including two by two second pixels adjacent to each other in a first direction and in a second direction intersecting the first direction, a transmissive region through which light is transmitted, and a line part including a conductive line connecting two unit pixel blocks adjacent to each other in an oblique direction inclined to the first direction,

wherein the transmissive region includes a plurality of unit transmissive blocks, each having substantially a circular shape and surrounded by two unit pixel blocks adjacent to each other in the first direction, two unit pixel blocks adjacent to each other in the second direction, and the line part,

wherein, in a plan view, a distance between the two unit pixel blocks adjacent to each other in the first direction is greater than a distance between the two unit pixel blocks adjacent to each other in the oblique direction, and

wherein, in at least one region of the second display region, which are surrounded between the unit pixel blocks, a ratio of areas occupied by a region of the second pixels and the transmissive region is about 2:9,

wherein the display panel further comprises:

a line part disposed between the unit pixel blocks; and

a light blocking pattern disposed on the substrate in at least one region of the second display region, and

wherein the light blocking pattern overlaps the line part,

wherein each of the first and second pixels comprises a first electrode, an emitting layer disposed on the first electrode, and a second electrode disposed on the emitting layer, and

wherein the second electrode is not disposed in the unit transmissive blocks.