# US 2022/0045418 A1 · Touch screen with built-in antenna and display apparatus

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- Number: US 2022/0045418 A1
- Document ID: US20220045418A1
- Status: Published application
- Kind: A1
- Application number: 17/333,776
- Filed: 2021-05-28
- Published: 2022-02-10
- Earliest claimed: 2020-08-05
- Assignees: Mitsubishi Electric Corporation
- Applicants: Mitsubishi Electric Corporation
- Inventors: Tatsuya NAKAMURA; Takafumi HASHIGUCHI; Seiichiro MORI
- Web page: https://patentgrep.com/patent/US20220045418A1

## CPC

- G06K 7/10316: {using at least one antenna particularly designed for interrogating the wireless record carriers (antennas in general H01Q1/22)}
- H01Q 1/2208: {associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems (methods or arrangements for sensing record carriers, e.g. for reading patterns G06K7/00; record carrier for use with machines and with at least a part designed to carry digital markings G06K19/00)}
- G06F 3/0445: {using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer}
- 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}
- G06K 19/07773: {Antenna details (antennas for wireless devices, e.g. RFID tags, in general H01Q1/22)}
- H01Q 1/36: Structural form of radiating elements, e.g. cone, spiral, umbrella; {Particular materials used therewith}(H01Q1/08, H01Q1/14 take precedence)
- G02F 1/13338: {Input devices, e.g. touch panels}
- 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
- G06K: GRAPHICAL DATA READING (image or video recognition or understanding G06V); PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72)
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS

## Abstract

An object of the present disclosure is to suppress reduction of a communication distance of a touch screen with a built-in antenna and obtain a high visual quality at a time of constituting a display apparatus by the touch screen. A touch screen with a built-in antenna of the present disclosure is provided on a side of an emission of display light of a display element. The touch screen with the built-in antenna includes a touch panel and an antenna pattern. The antenna pattern includes an antenna wire disposed to overlap with a detectable area in a plan view and made by a repetitive unit pattern. A second pitch which is a pitch of the unit pattern of the antenna wire is different from a first pitch which is a pitch of the unit pattern of each of the first detection wires and each of the second detection wires.

## Claims

### Claim 1

A touch screen with a built-in antenna provided on a side of an emission of display light of a display element, comprising:
a touch panel; and
an antenna pattern provided between the touch panel and the display element, wherein
the touch panel includes:
a plurality of first detection wires extending in a first direction; and
a plurality of second detection wires extending in a second direction which is different from the first direction, and setting a region where the plurality of second detection wires overlap with the plurality of first detection wires to a detectable area of the touch panel, wherein
each of the first detection wires and each of the second detection wires are made by a repetitive unit pattern,
the antenna pattern includes
an antenna wire disposed to overlap with the detectable area of the touch panel in a plan view and made by a repetitive unit pattern, and
a second pitch which is a pitch of the unit pattern of the antenna wire is different from a first pitch which is a pitch of the unit pattern of each of the first detection wires and each of the second detection wires.

### Claim 2 (depends on 1)

The touch screen with the built-in antenna according to claim 1, wherein
the second pitch is neither a multiple number or a submultiple of the first pitch.

### Claim 3 (depends on 1)

The touch screen with the built-in antenna according to claim 1, wherein
the second pitch is smaller than the first pitch.

### Claim 4 (depends on 1)

The touch screen with the built-in antenna according to claim 1, wherein
each of the first detection wires and each of the second detection wires are made up of a transparent conductive film.

### Claim 5 (depends on 1)

The touch screen with the built-in antenna according to claim 1, wherein
the touch panel includes:
a first floating electrode provided in a layer identical with the first detection wires and insulated from the first detection wires; and
a second floating electrode provided in a layer identical with the second detection wires and insulated from the second detection wires.

### Claim 6 (depends on 1)

The touch screen with the built-in antenna according to claim 1, wherein
the antenna pattern is provided in a region where the antenna wire is not disposed, and includes a dummy electrode insulated from the antenna wire.

### Claim 7 (depends on 1)

The touch screen with the built-in antenna according to claim 1, wherein
at least part of unit patterns of each of the first detection wires, each of the second detection wires, and the antenna wire has an arc shape.

### Claim 8 (depends on 7)

The touch screen with the built-in antenna according to claim 7, wherein
unit patterns of all of the first detection wires, the second detection wires, and the antenna wire have an arc shape.

### Claim 9 (depends on 1)

A display apparatus, comprising:
the touch screen with the built-in antenna according to claim 1; and
the display element.
