DISPLAY DEVICE

• US 20200133415A1
• Filed: 06/17/2019
• Published: 04/30/2020
• Est. Priority Date: 10/26/2018
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Choi, Wonjun, Kim, Iljoo, Kim, Duckjoong
• Granted Patent: US 11,009,999 B2
• Time in Patent Office: Days
• CPC Class Codes: G06F 2203/04107 Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds
• CPC Class Codes: G06F 2203/04111 Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
• CPC Class Codes: G06F 2203/04112 Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/04164 Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
• CPC Class Codes: G06F 3/044 by capacitive means
• CPC Class Codes: G06F 3/0445 using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
• CPC Class Codes: G06F 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
• CPC Class Codes: G06F 3/0448 Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality
• CPC Class Codes: H10K 59/40 OLEDs integrated with touch screens

Abstract

A display device includes a display panel including an opening penetrating the display panel, a display area adjacent to the opening, a first non-display area between the opening and the display area, and a second non-display area surrounding the display area, and an input detecting layer on the display panel. The input detecting layer may include a first line located in the first non-display area, a second line located in the second non-display area, and a connecting line connecting the first line to the second line.

Claims

1. A display device, comprising:

a display panel including an opening penetrating the display panel, a display area adjacent to the opening, a first non-display area between the opening and the display area, and a second non-display area surrounding the display area; and

an input detecting layer on the display panel, the input detecting layer including;

a first line located in the first non-display area;

a second line located in the second non-display area; and

a connecting line connecting the first line to the second line.

2. The display device as claimed in claim 1, wherein the second line has a voltage level of a constant voltage.

3. The display device as claimed in claim 1, wherein the first line has a ring shape surrounding the opening.

4. The display device as claimed in claim 1, wherein the input detecting layer includes first detecting electrodes arranged in a first direction, and second detecting electrodes arranged in a second direction crossing the first direction, the first detecting electrodes and the second detecting electrodes being located in the display area.

5. The display device as claimed in claim 4, wherein the input detecting layer includes:

a first conductive layer;

a first insulating layer on the first conductive layer;

a second conductive layer on the first insulating layer and including the first detecting electrodes and the second detecting electrodes; and

a second insulating layer on the second conductive layer.

6. The display device as claimed in claim 5, wherein the first conductive layer or the second conductive layer includes the connecting line.

7. The display device as claimed in claim 6, wherein the connecting line includes a same material as the first detecting electrodes and the second detecting electrodes.

8. The display device as claimed in claim 7, wherein:

the first conductive layer includes at least one of the first line or the second line, and

the connecting line is connected to the at least one of the first line or the second line via a contact hole of the first insulating layer.

9. The display device as claimed in claim 5, wherein the connecting line is located below the first detecting electrodes and the second detecting electrodes with the first insulating layer therebetween.

10. The display device as claimed in claim 4, wherein the connecting line is located in a gap between neighboring detecting electrodes among the first detecting electrodes and the second detecting electrodes.

11. The display device as claimed in claim 4, wherein the connecting line overlaps at least one of the first detecting electrodes or the second detecting electrodes.

12. The display device as claimed in claim 4, further comprising a connecting electrode sector connecting neighboring first detecting electrodes among the first detecting electrodes or neighboring second detecting electrodes among the second detecting electrodes, the connecting electrode sector being located in the first non-display area.

13. A display device, comprising:

a substrate including an opening penetrating the substrate, a display area, a first non-display area between the opening and the display area, and a second non-display area spaced apart from the first non-display area with the display area therebetween;

a plurality of display elements arranged in the display area;

an encapsulation member covering the plurality of display elements;

first detecting electrodes arranged on the encapsulation member in a first direction;

second detecting electrodes arranged on the encapsulation member in a second direction crossing the first direction; and

a first line arranged on the encapsulation member and surrounding the opening in the first non-display area.

14. The display device as claimed in claim 13, wherein the first line has a voltage level of a constant voltage.

15. The display device as claimed in claim 13, further comprising:

a second line in the second non-display area; and

a connecting line connecting the first line to the second line.

16. The display device as claimed in claim 15, wherein the connecting line is located on a same layer as the first detecting electrodes.

17. The display device as claimed in claim 16, further comprising an insulating layer provided between the connecting line and any one of the first line and the second line,

wherein the connecting line is connected to the any one of the first line and the second line via a contact hole of the insulating layer.

18. The display device as claimed in claim 15, wherein the connecting line is located on a same layer as any one of the first line and the second line.

19. The display device as claimed in claim 18, wherein the connecting line includes a metal layer.

20. The display device as claimed in claim 15, wherein the connecting line is located in a gap between neighboring detecting electrodes among the first detecting electrodes and the second detecting electrodes.

21. The display device as claimed in claim 15, wherein the connecting line overlaps at least one of the first detecting electrodes or the second detecting electrodes.

22. The display device as claimed in claim 13, wherein the first detecting electrodes and the second detecting electrodes respectively include a transparent conductive layer.

23. The display device as claimed in claim 22, wherein the first line includes a material different from the first detecting electrodes and the second detecting electrodes.

24. The display device as claimed in claim 13, wherein the first detecting electrodes and the second detecting electrodes respectively include a metal layer.

25. The display device as claimed in claim 13, further comprising a connecting electrode sector connecting neighboring first detecting electrodes among the first detecting electrodes or neighboring second detecting electrodes among the second detecting electrodes.