# US 12,001,624 B2 · Input sensing unit and display apparatus including the same

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- Number: US 12,001,624 B2
- Document ID: US12001624B2
- Status: Granted
- Kind: B2
- Application number: 17/665,582
- Filed: 2022-02-06
- Published: 2022-07-21
- Granted: 2024-06-04
- Earliest claimed: 2018-09-12
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.
- Inventors: Kiwook Kim; Kwang-Min Kim; Yangwan Kim; Jisu Na
- Web page: https://patentgrep.com/patent/US12001624B2

## CPC

- G06F 3/0412: {Digitisers structurally integrated in a display}
- G06F 3/04164: {Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads}
- G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes}
- 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}
- H10K 59/131: Interconnections, e.g. wiring lines or terminals
- H10K 59/40: OLEDs integrated with touch screens
- 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
- 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
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## Abstract

An input sensing unit including a plurality of first electrodes, each of which including a plurality of first main patterns and a plurality of connection patterns disposed between the first main patterns to connect two first main patterns adjacent to each other, a plurality of second electrodes each of which including a plurality of second main patterns and a plurality of connection patterns disposed between the second main patterns to connect two second main patterns adjacent to each other, and a plurality of third electrodes receiving an electrical signal that is different from that received by the second electrode. Each of the third electrodes includes a plurality of third main patterns spaced apart from the second sensing patterns in a plan view and a plurality of third connection patterns disposed between the third main patterns to connect two third main patterns adjacent to each other and spaced apart from the first connection patterns in a plan view.

## Claims

### Claim 1

A display apparatus comprising:
a display unit including pixels and an encapsulation layer covering the pixels and including a first inorganic layer, a second inorganic layer, and an organic layer disposed between the first and second inorganic layers; and
a user input sensing unit including at least one sensing insulating layer disposed on the encapsulation layer, and first to third electrodes insulated from each other;
wherein:
the first electrode includes first main patterns and a first connection pattern disposed on a different layer from the first main patterns and connected to the first main patterns,
the second electrode includes second main patterns each having an opening and insulated from the first main patterns, and a second connection pattern disposed between the second main patterns, and
the third electrode includes third main patterns disposed in corresponding the opening among the openings, and a third connection pattern disposed on the same layer as the first connection pattern and connected to the third main patterns,
at least a portion of the third connection pattern overlaps the second main patterns and one of the first main pattern of the first main patterns on a plane.

### Claim 2 (depends on 1)

The display apparatus of claim 1, wherein the at least one sensing insulating layer includes a first sensing insulating layer disposed on the second inorganic layer, a second sensing insulating layer disposed on the first sensing insulating layer, and a third sensing insulating layer disposed on the second sensing insulating layer.

### Claim 3 (depends on 2)

The display apparatus of claim 2, wherein the first connection pattern and the third connection pattern are disposed on the first sensing insulating layer and covered by the second sensing insulating layer.

### Claim 4 (depends on 3)

The display apparatus of claim 3, wherein:
the first connection pattern is connected to the first main patterns through a first contact hole defined in the first sensing insulating layer; and
the third connection pattern is connected to the third main patterns through a second contact hole defined in the first sensing insulating layer.

### Claim 5 (depends on 3)

The display apparatus of claim 3, wherein the first main patterns, the second main patterns, the second connection pattern, and the third main patterns are disposed on the second sensing insulating layer and covered by the third sensing insulating layer.

### Claim 6 (depends on 2)

The display apparatus of claim 2, wherein the first sensing insulating layer is disposed directly on the second inorganic layer.

### Claim 7 (depends on 1)

The display apparatus of claim 1, wherein:
each of the second main patterns and the third main patterns is arranged to be spaced apart from each other in a first direction; and
the first main patterns are arranged to be spaced apart from each other in a second direction crossing the first direction.

### Claim 8 (depends on 7)

The display apparatus of claim 7, wherein:
the second connection pattern extends in the first direction; and
the first connection pattern intersects the second connection pattern on a plane and extends in the second direction.

### Claim 9 (depends on 8)

The display apparatus of claim 8, wherein:
the third connection pattern includes a first portion extending in a first oblique direction intersecting the first and second directions and a second portion extending in a second oblique direction intersecting the first oblique direction;
the first portion overlaps with one of the second main pattern of the second main patterns and a portion of the one of the first main pattern; and
the second portion overlaps with another second main pattern of the second main patterns and the other portion of the one of the first main pattern.

### Claim 10 (depends on 8)

The display apparatus of claim 8, wherein the third connection pattern does not overlap the first connection pattern and the second connection pattern.

### Claim 11 (depends on 1)

The display apparatus of claim 1, wherein each of the third main patterns includes a first portion having a rhombus shape and second portions spaced apart from each other in one direction with the first portion interposed therebetween.

### Claim 12 (depends on 11)

The display apparatus of claim 11, wherein the second portions have a zigzag shape.

### Claim 13 (depends on 1)

The display apparatus of claim 1, wherein each of the first main patterns, the second main patterns, the second connection patterns, and the third main patterns includes mesh lines extending in a direction crossing each other.

### Claim 14 (depends on 1)

The display apparatus of claim 1, wherein the second electrode and the third electrode include a same material.

### Claim 15 (depends on 1)

The display apparatus of claim 1, wherein the second main patterns and the second connection pattern have an integral shape.

### Claim 16 (depends on 15)

The display apparatus of claim 15, wherein the third electrode is provided with a ground voltage.
