Display panel and display device including the same

Patent metadata

Field	Value
Publication number	US-11275473-B2
Application number	US-202016884844-A
Country	US
Kind code	B2
Filing date	May 27, 2020
Priority date	Jun 13, 2019
Publication date	Mar 15, 2022
Grant date	Mar 15, 2022

Abstract

A display device includes a display panel including a display layer having light-emitting elements on the substrate, and a sensor electrode layer on the display layer. The sensor electrode layer includes sensor electrodes in a sensor area, sensor lines electrically connected to the sensor electrodes and a first conductive pattern spaced apart from the sensor lines and sensor electrodes. The sensor lines and the first conductive pattern are in a sensor peripheral area adjacent to the sensor area. The first conductive pattern is an antenna.

First claim

What is claimed is:

1. A display device comprising:
a display panel including:
a display layer including light-emitting elements disposed on a substrate; and
a sensor electrode layer disposed on the display layer, the sensor electrode layer including:
sensor electrodes including driving electrodes and sensing electrodes disposed in a sensor area;
sensor lines electrically connected to the sensor electrodes;
a first connection unit electrically connected between the driving electrodes adjacent to one another in a second direction and disposed on a layer different from the sensor electrodes;
a first conductive pattern spaced apart from the sensor lines and sensor electrodes; and
a second conductive pattern overlapping the first conductive pattern and to which a ground voltage or a predetermined voltage is applied, wherein

the sensor lines and the first conductive pattern are disposed in a sensor peripheral area adjacent to the sensor area,
the first conductive pattern is an antenna and disposed on a same layer with the sensor electrodes, and
the second conductive pattern is disposed on a same layer with the first connection unit.

2. The display device of claim 1 , wherein the first conductive pattern is disposed in a sensor peripheral area adjacent to a first side of the sensor area, a sensor peripheral area adjacent to a second side of the sensor area, and a sensor peripheral area adjacent to a third side of the sensor area.

3. The display device of claim 2 , further comprising:
sensor pads disposed adjacent to a side of the substrate and electrically connected to the sensor lines; and
a conductive pad disposed adjacent to the side of the substrate and electrically connected to the first conductive pattern.

4. The display device of claim 1 , wherein
the sensor electrode layer comprises sensor pads disposed adjacent to a first side of the substrate and electrically connected to the sensor lines, and
the first conductive pattern is disposed adjacent to a second side of the substrate opposite to the first side, a third side of the substrate connecting the first side with the second side of the substrate, and a corner between the second side and the third side of the substrate.

5. The display device of claim 1 , wherein
the substrate comprises:
a second bending area extended from a side of the sensor peripheral area; and
a second pad area extended from the second bending area, and

the first conductive pattern is disposed in the second pad area.

6. The display device of claim 5 , further comprising:
a radio frequency driver electrically connected to the first conductive pattern and processing a radio frequency signal transmitted or received from or to the first conductive pattern.

7. The display device of claim 6 , wherein the radio frequency driver is disposed in the second pad area.

8. The display device of claim 5 , wherein
the substrate comprises:
a first bending area extended from another side of the sensor peripheral area; and

a first pad area extended from the first bending area, and
a display driver is disposed in the first pad area.

9. The display device of claim 5 , wherein
the substrate comprises:
a first bending area extended from the side of the sensor peripheral area; and
a first pad area extended from the first bending area, and

a display driver is disposed in the first pad area.

10. The display device of claim 9 , wherein a gap is disposed between the first bending area and the second bending area and between the first pad area and the second pad area.

11. The display device of claim 9 , further comprising:
a battery disposed below the display panel, wherein the first conductive pattern is electrically connected to the battery.

12. The display device of claim 1 , wherein the sensor electrodes comprise:
sensing electrodes electrically connected to one another in a first direction;
driving electrodes electrically connected to one another in a second direction, the second direction intersecting the first direction;
a first connection unit electrically connected between the driving electrodes adjacent to one another in the second direction and disposed on a layer different from the sensing electrodes and the driving electrodes; and
a second connection unit electrically connected between the sensing electrodes adjacent to one another in the first direction and disposed on a same layer as the sensing electrodes and the driving electrodes.

13. The display device of claim 1 , wherein
the first conductive pattern is disposed in the sensor peripheral area adjacent to a side of the sensor area, and
the sensor electrode layer comprises a ground line disposed between the first conductive pattern and the sensor area.

14. The display device of claim 12 , further comprising a second conductive pattern disposed between the first conductive pattern and the display layer, wherein
the first conductive pattern is disposed on the same layer as the sensing electrodes and the driving electrodes, and
the second conductive pattern is disposed on the same layer as the first connection unit.

15. A display device comprising:
a display panel including:
a display layer including the light-emitting elements disposed on a substrate; and
a sensor electrode layer disposed on the display layer, the sensor electrode layer including:
sensor electrodes disposed in a sensor area;
sensor lines electrically connected to the sensor electrodes; and
a first conductive pattern spaced apart from the sensor lines and sensor electrodes, wherein

the sensor lines and the first conductive pattern are disposed in a sensor peripheral area adjacent to the sensor area,
the first conductive pattern is an antenna, and
a thickness of the first conductive pattern is larger than a thickness of each of the sensor electrodes and a thickness of each of the sensor lines.

16. The display device of claim 15 , wherein a thickness of the first conductive pattern is equal to or greater than about 2,150 μm.

17. A display device comprising:
a display panel including:
a display layer including light-emitting elements disposed on a substrate; and
a sensor electrode layer disposed on the display layer, the sensor electrode layer including:
sensor electrodes;
sensor lines electrically connected to the sensor electrodes;
a plurality of first conductive patterns spaced apart from the sensor lines and sensor electrodes; and
a third connection unit electrically connected between the first conductive patterns adjacent to each other in a first direction, wherein

the sensor electrodes and the plurality of first conductive patterns are disposed in a sensor area,
the sensor lines are disposed in a sensor peripheral area adjacent to the sensor area,
the plurality of first conductive patterns is an antenna,
the plurality of first conductive patterns and the sensor electrodes are disposed on a same layer, and
the third connection unit is disposed on a layer different from the sensor electrodes.

18. The display device of claim 17 , wherein the plurality of first conductive patterns and the sensor electrodes are disposed on a same layer.

19. The display device of claim 17 , wherein the plurality of first conductive patterns are surrounded by the sensor electrodes, respectively.

20. The display device of claim 17 , wherein the sensor electrodes comprise:
sensing electrodes electrically connected to one another in the first direction;
driving electrodes electrically connected to one anot

Assignees

• Samsung Display Co Ltd

Inventors

• Bok Seung Lyong
• Kim Ki Seo
• Kim Jae Kyoung
• Seo Young Seok
• Yu Sun Mi
• Kwag Jin Oh

Classifications

• G06F3/044

  by capacitive means · CPC title

• G06F3/0412

  Digitisers structurally integrated in a display · CPC title

• H01Q1/38

  formed by a conductive layer on an insulating support {(patch antennas H01Q9/0407; microstrip dipole antennas H01Q9/065; microstrip slot antennas H01Q13/106; transmission line microstrip antennas H01Q13/206; manufacturing reflecting surfaces using insulating material for supporting the reflecting surface  H01Q15/142)} · CPC title

• H10K59/40 Primary

  OLEDs integrated with touch screens · CPC title

• G06F3/046

  by electromagnetic means · CPC title