Display device

Patent metadata

Field	Value
Publication number	US-11656707-B2
Application number	US-202117566480-A
Country	US
Kind code	B2
Filing date	Dec 30, 2021
Priority date	Dec 12, 2019
Publication date	May 23, 2023
Grant date	May 23, 2023

Abstract

A display device, includes: a display unit that includes a first substrate, a second substrate facing the first substrate, and a sealant combining the first and second substrates with each other, the first substrate including an active area that displays an image and a peripheral area adjacent to the active area; and an input detection unit on the second substrate, wherein the input detection unit includes: a sensing electrode on the second substrate and corresponding to the active area; a sensing pad section on the second substrate and corresponding to the peripheral area, the sensing pad section including a plurality of sensing pads electrically connected to the sensing electrode; and a pattern section on the second substrate and corresponding to the peripheral area, the pattern section overlapping the sealant and including a plurality of conductive patterns in a floating state.

First claim

What is claimed is:

1. A display device, comprising:
a display unit including an active area to display an image and a peripheral area adjacent to the active area, the display unit comprising a pixel corresponding to the active area, a first power line configured to supply the pixel with a first power, and a second power line configured to supply the pixel with a second power; and
an input detection unit on the display unit,
wherein the input detection unit comprises:
a sensing electrode on the display unit and corresponding to the active area;
a sensing pad section on the display unit and corresponding to the peripheral area, the sensing pad section comprising a plurality of sensing pads electrically connected to the sensing electrode; and
a pattern section on the display unit and corresponding to the peripheral area, the pattern section comprising a plurality of conductive patterns partially overlapping the second power line.

2. The display device of claim 1 , wherein each of the conductive patterns comprises:
a transparent conductive pattern comprising a transparent conductive material; and
a metal pattern comprising a metallic material.

3. The display device of claim 2 , wherein the pattern section is divided into a plurality of pattern regions that correspond to corresponding ones of the conductive patterns,
wherein each of the pattern regions comprises:
an effective pattern region where a corresponding one of the conductive patterns is located; and
an ineffective pattern region where the conductive patterns are not located.

4. The display device of claim 3 , wherein an area of the effective pattern region is greater than an area of the ineffective pattern region.

5. The display device of claim 4 , wherein the effective pattern region comprises:
a first effective pattern region where the transparent conductive pattern is located; and
a second effective pattern region where the metal pattern is located,
wherein the first effective pattern region overlaps the second effective pattern region.

6. The display device of claim 5 , wherein the first effective pattern region has an area greater than an area of the second effective pattern region.

7. The display device of claim 2 , wherein the conductive patterns are arranged in a first direction and a second direction perpendicular to the first direction.

8. The display device of claim 7 , wherein the transparent conductive pattern has a rectangular shape elongated in the second direction, and
the metal pattern has a rectangular shape elongated in the first direction.

9. The display device of claim 7 , wherein
the conductive patterns are formed in a zigzag pattern in one or more of the first and second directions.

10. The display device of claim 2 , wherein the input detection unit further comprises:
a first insulating layer covering the metal pattern; and
a second insulating covering the transparent conductive pattern,
wherein the metal pattern is on the display unit, and
wherein the transparent conductive pattern is on the first insulating layer.

11. The display device of claim 1 , wherein each of the conductive patterns comprises a metal pattern comprising a metallic material.

12. The display device of claim 11 , wherein the pattern section is divided into a plurality of pattern regions that correspond to corresponding ones of the conductive patterns,
wherein each of the pattern regions comprises:
an effective pattern region where the metal pattern is located; and
an ineffective pattern region where the metal pattern is not located.

13. The display device of claim 12 , wherein the effective pattern region has an area less than an area of the ineffective pattern region.

14. The display device of claim 12 , wherein
the conductive patterns are arranged in a first direction and a second direction perpendicular to the first direction, and
the conductive patterns are formed in a zigzag pattern in one or more of the first and second directions.

15. The display device of claim 1 , wherein the display unit comprises a first substrate, a second substrate facing the first substrate, and a sealant combining the first and second substrates with each other.

16. The display device of claim 15 , wherein the display unit further comprises an organic layer including an opening that partially exposes the first and second power lines,
wherein the opening overlaps the sealant.

17. The display device of claim 15 , wherein the pattern section partially overlaps the second power line and the sealant.

Assignees

• Samsung Display Co Ltd

Inventors

• You Wonho
• Kim Do-Hoon

Classifications

• H10K59/8722

  Peripheral sealing arrangements, e.g. adhesives, sealants · CPC title

• H10K59/131

  Interconnections, e.g. wiring lines or terminals · CPC title

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title

• G06F3/04164 Primary

  Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads · CPC title

• H10K59/40

  OLEDs integrated with touch screens · CPC title