Electronic device

Patent metadata

Field	Value
Publication number	US-11513622-B2
Application number	US-202016953866-A
Country	US
Kind code	B2
Filing date	Nov 20, 2020
Priority date	Dec 4, 2019
Publication date	Nov 29, 2022
Grant date	Nov 29, 2022

Abstract

An electronic device including an electronic module, a sensing unit divided into a hole area overlapping the electronic module, an active area surrounding the hole area, and a peripheral area adjacent to the active area. A first sensing electrode and a second sensing electrode are disposed in the active area and insulated from each other. The first sensing electrode includes first main patterns, first neighboring patterns having a smaller area than the first main patterns, and a hole pattern connected to the adjacent first neighboring patterns. The second sensing electrode includes second main patterns, second neighboring patterns adjacent the hole area and having a smaller area than the second main patterns, second connection patterns connected to the second main patterns, and a routing pattern connected to the adjacent second neighboring patterns. The hole pattern is disposed in the hole area, and the routing pattern is disposed in the peripheral area.

First claim

What is claimed is:

1. An electronic device comprising:
an electronic module; and
a sensing unit divided into a hole area overlapping the electronic module, an active area surrounding the hole area, and a peripheral area adjacent to the active area and including a first sensing electrode and a second sensing electrode disposed in the active area and insulated from each other,
wherein:
the first sensing electrode comprises first main patterns, first neighboring patterns having a smaller area than the first main patterns, and a hole pattern connected to the adjacent first neighboring patterns;
the second sensing electrode comprises second main patterns, second neighboring patterns adjacent the hole area and having a smaller area than the second main patterns, second connection patterns connected to the second main patterns, and a routing pattern connected to the adjacent second neighboring patterns; and
the hole pattern is disposed in the hole area, and the routing pattern is disposed in the peripheral area.

2. The electronic device of claim 1 , wherein:
the sensing unit is defined by a first detection insulating layer, a first conductive layer disposed on the first detection insulating layer, a second detection insulating layer covering the first conductive layer and having a plurality of defined first contact holes overlapping the active area, and a second conductive layer disposed on the second detection insulating layer;
the second connection patterns are comprised in the first conductive layer;
the first main patterns, the first neighboring patterns, the second main patterns, and the second neighboring patterns are comprised in the second conductive layer; and
the second connection patterns are connected to the second main patterns through the first contact holes.

3. The electronic device of claim 2 , wherein the routing pattern is disposed on the same layer as the first neighboring patterns.

4. The electronic device of claim 2 , wherein the hole pattern is disposed on the same layer as the second neighboring patterns.

5. The electronic device of claim 1 , wherein the routing pattern extends in the same direction as the direction in which the second neighboring patterns are arranged.

6. The electronic device of claim 1 , wherein, among the first neighboring patterns, first neighboring patterns disposed between the second neighboring patterns connected with the routing pattern are spaced apart from the routing pattern on a plane.

7. The electronic device of claim 1 , wherein, among the second neighboring patterns, second neighboring patterns disposed between the first neighboring patterns connected with the hole pattern are spaced apart from the hole pattern on a plane.

8. The electronic device of claim 1 , wherein the electronic device further comprises a crack detection circuit comprising:
a crack detection line disposed in the peripheral area;
a crack detection pattern disposed in the hole area; and
a connection line connecting the crack detection line and the crack detection pattern.

9. The electronic device of claim 8 , wherein:
the electronic device further comprises routing dummy patterns disposed between the crack detection line and the routing pattern; and
the connection line crosses between the routing dummy patterns.

10. The electronic device of claim 8 , wherein the electronic device further comprises an antistatic pattern disposed in the hole area and disposed between the crack detection pattern and the hole pattern.

11. The electronic device of claim 8 , wherein the hole pattern surrounds at least a portion of the crack detection pattern.

12. The electronic device of claim 1 , wherein each of the first sensing electrode and the second sensing electrode comprises mesh lines defining mesh opening parts.

13. The electronic device of claim 12 , wherein the electronic device further comprises a display unit disposed under the sensing unit and including first electrodes, a second electrode facing the first electrodes, and light emitting layers disposed between the first electrodes and the second electrode,
wherein each of the light emitting layers overlaps the corresponding mesh opening parts.

14. The electronic device of claim 1 , wherein:
each of the second main patterns comprises a center pattern extending in one direction and branch patterns connected to the center pattern and extending in diagonal directions of the one direction; and
each of the first main patterns surrounds a portion of the center pattern of a corresponding second main pattern among the second main patterns and the branch patterns.

15. The electronic device of claim 1 , wherein:
the electronic module comprises a first electronic module and a second electronic module; and
the hole area comprises a first hole area overlapping the first electronic module and a second hole area overlapping the second electronic module.

16. The electronic device of claim 1 , wherein the electronic module comprises at least one of an image input module, an image output module, an optical detection module, and an optical output module.

17. An electronic device comprising:
a display unit including a plurality of pixels;
an electronic module disposed under the display unit;
a sensing unit divided into a hole area overlapping the electronic module, an active area surrounding the hole area, and a peripheral area adjacent to the active area and including a first sensing electrode and a second sensing electrode disposed in the active area and insulated from each other; and
a module hole defined through at least a portion of the display unit and the sensing unit overlapping the hole area,
wherein:
the first sensing electrode comprises a hole pattern connecting first neighboring patterns cut by the module hole;
the second sensing electrode comprises a routing pattern connecting the second neighboring patterns cut by the module hole; and
the hole pattern is disposed in the hole area, and the routing pattern is disposed in the peripheral area.

18. The electronic device of claim 17 , wherein:
the first sensing electrode comprises first main patterns having a larger area than the first neighboring patterns; and
the second sensing electrode comprises second main patterns having a larger area than the second neighboring patterns and second connection patterns connecting the main patterns.

19. The electronic device of claim 17 , wherein, among the first neighboring patterns, first neighboring patterns disposed between the second neighboring patterns connected with the routing pattern are spaced apart from the routing pattern on a plane.

20. The electronic device of claim 17 , wherein, among the second neighboring patterns, second neighboring patterns disposed between the first neighboring patterns connected with the hole pattern are spaced apart from the hole pattern on a plane.

21. The electronic device of claim 18 , wherein the electronic device further comprises a crack detection circuit comprising:
a crack detection line disposed in the peripheral area;
a crack detection pattern surrounding the module hole; and
a connection line connecting the crack detection line and the crack detection pattern.

22. The electronic device of claim 21 , wherein:
the electronic device further comprises routing dummy patterns disposed between the crack detection line and the routing pattern
the connection line crosses between the routing dummy patterns.

Assignees

• Samsung Display Co Ltd

Inventors

• Choi Wonjun
• Kim Il-Joo
• Kim Deokjung

Classifications

• G06F3/0446 Primary

  using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes · CPC title

• G06F2203/04112

  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 title

• G06F3/0416

  Control or interface arrangements specially adapted for digitisers · CPC title

• G06F3/0445

  using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer · CPC title

• G06F3/04144

  using an array of force sensing means (position sensing using the local deformation of sensor cells G06F3/0447) · CPC title