Electronic device

Patent metadata

Field	Value
Publication number	US-11635843-B2
Application number	US-202117351981-A
Country	US
Kind code	B2
Filing date	Jun 18, 2021
Priority date	Jun 24, 2020
Publication date	Apr 25, 2023
Grant date	Apr 25, 2023

Abstract

An electronic device, includes: a sensor layer having an active region and a peripheral region adjacent to the active region, the sensor layer including a plurality of sensing units on the active region and a plurality of wiring lines on the peripheral region, wherein each of the plurality of sensing units includes a plurality of sub-sensing units, wherein each of the plurality of sub-sensing units includes: a first portion extending in a first direction; a plurality of second portions protruding from the first portion; a plurality of cross patterns spaced apart from each other across the first portion; and a bridge pattern insulated from the first portion and electrically connected to the plurality of cross patterns, the bridge pattern intersecting the first portion, wherein the plurality of wiring lines include a first wiring line and a second wiring line that are electrically connected to the plurality of sub-sensing units.

First claim

What is claimed is:

1. An electronic device, comprising:
a display layer; and
a sensor layer on the display layer and having an active region and a peripheral region adjacent to the active region, the sensor layer including a plurality of sensing units on the active region and a plurality of wiring lines on the peripheral region,
wherein each of the plurality of sensing units includes a plurality of sub-sensing units,
wherein each of the plurality of sub-sensing units includes:
a first portion of an electrode extending in a first direction;
a plurality of second portions of the electrode protruding from the first portion at an acute angle relative to the first direction, wherein the plurality of second portions are laterally spaced apart from the second portions of each adjacent sub-sensing unit by a gap in a plan view;
a plurality of cross patterns of a cross electrode spaced apart from each other across the first portion; and
a bridge pattern insulated from the first portion and electrically connected to the plurality of cross patterns, the bridge pattern intersecting the first portion,
wherein the plurality of wiring lines include a first wiring line that is individually electrically connected with each of the electrodes of the sub-sensing units of a single sensing unit of the plurality of sensing units and a second wiring line that is individually electrically connected with each of the cross electrodes of the sub-sensing units of the single sensing unit of the plurality of sensing units.

2. The electronic device of claim 1 , wherein each of the plurality of cross patterns includes:
a first cross portion extending in a second direction intersecting the first direction; and
a plurality of second cross portions protruding from the first cross portion and adjoining the plurality of second portions.

3. The electronic device of claim 2 , wherein the plurality of second portions include:
a plurality of first pattern portions protruding in the second direction from the first portion;
a plurality of second pattern portions that correspondingly protrude from the plurality of first pattern portions in a third direction at an angle between the first direction and the second direction; and
a plurality of third pattern portions that protrude in a first cross direction intersecting the first and second directions.

4. The electronic device of claim 3 , wherein the plurality of second cross portions include:
a plurality of first cross pattern portions that correspondingly surround the plurality of first pattern portions and the plurality of second pattern portions; and
a plurality of second cross pattern portions that correspondingly protrude in a direction toward the plurality of third pattern portions.

5. The electronic device of claim 4 , wherein each of the plurality of sub-sensing units further includes a plurality of dummy parts that are correspondingly located between the plurality of first pattern portions, the plurality of second pattern portions, the plurality of third pattern portions, and the plurality of second cross pattern portions.

6. The electronic device of claim 2 , wherein the plurality of second cross portions include:
a plurality of first cross pattern portions protruding in the first direction from the first cross portion; and
a plurality of second cross pattern portions that correspondingly protrude from the plurality of first cross pattern portions in a third direction at an angle between the first direction and the second direction.

7. The electronic device of claim 6 , wherein the plurality of second portions include:
a plurality of first pattern portions that correspondingly surround the plurality of first cross pattern portions and the plurality of second cross pattern portions; and
a plurality of second pattern portions that are correspondingly spaced apart from the plurality of first pattern portions across the plurality of first cross pattern portions and the plurality of second cross pattern portions.

8. The electronic device of claim 2 , wherein the plurality of second portions include:
a plurality of first pattern portions protruding from the first portion in a first cross direction intersecting the first and second directions; and
a plurality of second pattern portions protruding from the first portion in a second cross direction intersecting the first cross direction.

9. The electronic device of claim 8 , wherein the plurality of second cross portions surround the plurality of second portions.

10. The electronic device of claim 9 , wherein the plurality of sub-sensing units further include a plurality of dummy parts that are correspondingly located between the plurality of second cross portions and the plurality of second portions.

11. The electronic device of claim 8 , wherein the plurality of second cross portions include:
a plurality of first cross pattern portions that adjoin the plurality of first pattern portions and protrude in the first cross direction from the first cross portion; and
a plurality of second cross pattern portions that adjoin the plurality of second pattern portions and protrude in the second cross direction from the first cross portion.

12. The electronic device of claim 11 , wherein each of the plurality of sub-sensing units includes:
a plurality of first dummy portions that are correspondingly located between the plurality of first pattern portions and the plurality of first cross pattern portions; and
a plurality of second dummy portions that are correspondingly located between the plurality of second pattern portions and the plurality of second cross pattern portions.

13. The electronic device of claim 2 , wherein
the plurality of second portions protrude in the second direction from the first portion, and
the plurality of second cross portions protrude in the first direction from the first cross portion.

14. The electronic device of claim 1 , wherein each of the plurality of sensing units has a first region, a plurality of second regions adjacent in the first direction to the first region, and a plurality of third regions adjacent in a second direction to the first region, the second direction intersecting the first direction,
wherein the first portion, the plurality of second portions, the plurality of cross patterns, and the bridge pattern are within the first region,
wherein the first portion and the plurality of second portions are within one or more of the plurality of second regions, and
wherein the plurality of cross patterns are within one or more of the plurality of third regions.

15. The electronic device of claim 2 , wherein each of the plurality of sub-sensing units further includes a dummy electrode,
wherein each of the plurality of sub-sensing units has a first region and a second region that surrounds the first region,
wherein the first region is provided with the first portion, the plurality of second portions, the plurality of cross patterns, the bridge pattern, and the dummy electrode, and
wherein the second region is provided with the first portion, the first cross portion, and the dummy electrode.

16. The electronic device of claim 1 , wherein each of the plurality of wiring lines is connected to the sub-sensing units adjacent to the peripheral region.

17. The electronic device of claim 1 , wherein
each of the plurality of wiring lines is connected to one of the sub-sensing units adjacent to the peripheral region, and
the sensor layer further includes a plurality of connection patterns that connect the plurality of sub-sensing units to each other.

Assignees

• Samsung Display Co Ltd

Inventors

• Bang Gyeongnam
• Kim Deokjung
• Kim Eunyoung
• Han Hyeyun

Classifications

• H10H29/142

  Two-dimensional arrangements, e.g. asymmetric LED layout · CPC title

• G06F2203/04111

  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 title

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title

• H10K59/131

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

• G06F3/04164 Primary

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