# US 2018/0024680 A1 · Display Device and Electronic Device

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- Number: US 2018/0024680 A1
- Document ID: US20180024680A1
- Status: Published application
- Kind: A1
- Application number: 15/711,120
- Filed: 2017-09-21
- Published: 2018-01-25
- Earliest claimed: 2014-04-25
- Assignees: Semiconductor Energy Laboratory Co., Ltd.
- Applicants: Semiconductor Energy Laboratory Co., Ltd.
- Inventors: Tatsuya Sakuishi; Tomoya Aoyama; Akihiro Chida; Daiki Nakamura
- Web page: https://patentgrep.com/patent/US20180024680A1

## CPC

- G06F 3/0412: {Digitisers structurally integrated in a display}
- G02F 1/133305: {Flexible substrates, e.g. plastics, organic film}
- G02F 1/13338: {Input devices, e.g. touch panels}
- G06F 3/0445: {using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer}
- H10D 86/40: characterised by multiple TFTs
- H10D 86/60: wherein the TFTs are in active matrices
- H10H 20/857: Interconnections, e.g. lead-frames, bond wires or solder balls
- H10K 59/131: Interconnections, e.g. wiring lines or terminals
- H10K 59/40: OLEDs integrated with touch screens
- H10K 77/111: {Flexible substrates}
- G02F 1/13458: {Terminal pads}
- G02F 1/13629: {Multilayer wirings}
- G06F 2203/04103: Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
- H10K 59/1201: {Manufacture or treatment}
- H10K 71/80: using temporary substrates
- H10K 2102/311: {Flexible OLED}
- H10W 20/081: {by forming openings in the dielectric parts}
- H10W 72/074: {of anisotropic conductive adhesives}
- 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
- H10D: INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10

## Abstract

A display device with high design flexibility is provided. The display device includes a display element, a touch sensor, and a transistor between two flexible substrates. An external electrode that supplies a signal to the display element and an external electrode that supplies a signal to the touch sensor are connected from the same surface of one of the substrates.

## Claims

### Claim 1

A display device comprising:
a first substrate;
a first electrode over the first substrate;
a second electrode over and electrically connected to the first electrode;
a layer comprising an organic material over the second electrode;
a third electrode over the layer;
an insulating layer over the third electrode;
a first conductive layer over and electrically connected to the first electrode;
a touch sensor over the insulating layer;
a fourth electrode electrically connected to the touch sensor;
a second substrate over the fourth electrode;
a second conductive layer over and electrically connected to the fourth electrode;
a fifth electrode over and electrically connected to the first conductive layer; and
a sixth electrode over and electrically connected to the second conductive layer,
wherein the first conductive layer is provided in a first opening of the second substrate and an opening of the insulating layer,
wherein the second conductive layer is provided in a second opening of the second substrate, and
wherein the fifth electrode and the sixth electrode are provided over the second substrate.

### Claim 2 (depends on 1)

The display device according to claim 1, wherein the layer and the touch sensor overlap each other.

### Claim 3 (depends on 1)

The display device according to claim 1, wherein at least one of the first substrate and the second substrate is a flexible substrate.

### Claim 4 (depends on 1)

The display device according to claim 1, wherein at least one of the first conductive layer and the second conductive layer is an anisotropic conductive layer.

### Claim 5 (depends on 1)

The display device according to claim 1, wherein the touch sensor is a capacitive touch sensor.

### Claim 6 (depends on 1)

The display device according to claim 1, wherein the touch sensor is an active matrix touch sensor.

### Claim 7 (depends on 1)

The display device according to claim 1, wherein the first electrode and the fourth electrode comprise tungsten.

### Claim 8 (depends on 1)

An electronic device comprising:
the display device according to claim 1; and
a hinge.

### Claim 9

A display device comprising:
a first substrate;
a first electrode over the first substrate;
a second electrode over and electrically connected to the first electrode;
a layer comprising an organic material over the second electrode;
a third electrode over the layer;
an insulating layer over the third electrode;
a first conductive layer over and electrically connected to the first electrode;
a touch sensor over the insulating layer;
a fourth electrode electrically connected to the touch sensor;
a second substrate over the fourth electrode;
a second conductive layer over and electrically connected to the fourth electrode;
a fifth electrode over and electrically connected to the first conductive layer; and
a sixth electrode over and electrically connected to the second conductive layer,
wherein the first conductive layer is provided in a first opening of the second substrate and an opening of the insulating layer,
wherein the second conductive layer is provided in a second opening of the second substrate,
wherein the first conductive layer and the second conductive layer are provided over the second substrate, and
wherein the fifth electrode and the sixth electrode are provided over the second substrate.

### Claim 10 (depends on 9)

The display device according to claim 9, wherein the layer and the touch sensor overlap each other.

### Claim 11 (depends on 9)

The display device according to claim 9, wherein at least one of the first substrate and the second substrate is a flexible substrate.

### Claim 12 (depends on 9)

The display device according to claim 9, wherein at least one of the first conductive layer and the second conductive layer is an anisotropic conductive layer.

### Claim 13 (depends on 9)

The display device according to claim 9, wherein the touch sensor is a capacitive touch sensor.

### Claim 14 (depends on 9)

The display device according to claim 9, wherein the touch sensor is an active matrix touch sensor.

### Claim 15 (depends on 9)

The display device according to claim 9, wherein the first electrode and the fourth electrode comprise tungsten.

### Claim 16 (depends on 9)

An electronic device comprising:
the display device according to claim 9; and
a hinge.