# US 2024/0201743 A1 · Display device

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- Number: US 2024/0201743 A1
- Document ID: US20240201743A1
- Status: Published application
- Kind: A1
- Application number: 18/590,976
- Filed: 2024-02-29
- Published: 2024-06-20
- Earliest claimed: 2019-11-22
- Assignees: Innolux Corporation
- Applicants: InnoLux Corporation
- Inventors: Yuan-Lin Wu; Yu-Chia Huang; Kuan-Feng Lee
- Web page: https://patentgrep.com/patent/US20240201743A1

## CPC

- B32B 7/12: using interposed adhesives or interposed materials with bonding properties
- G06F 1/1652: {the display being flexible, e.g. mimicking a sheet of paper, or rollable}
- B32B 7/02: Physical, chemical or physicochemical properties
- B32B 7/022: Mechanical properties
- B32B 17/10: of synthetic resin
- B32B 27/281: {comprising polyimides}
- B32B 27/308: {comprising acrylic (co)polymers}
- B32B 27/36: comprising polyesters
- B32B 27/365: {comprising polycarbonates}
- G06F 1/1641: {the display being formed by a plurality of foldable display components (G06F1/1647 takes precedence)}
- H10K 77/111: {Flexible substrates}
- B32B 2255/26: Polymeric coating
- B32B 2307/54: Yield strength; Tensile strength
- B32B 2307/546: Flexural strength; Flexion stiffness
- B32B 2307/558: Impact strength, toughness
- B32B 2307/732: Dimensional properties
- B32B 2457/20: Displays, e.g. liquid crystal displays, plasma displays
- Y02E 10/549: Organic PV cells
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

A display device is provided by the present disclosure and includes a display panel, a cover, and a second adhesive. The cover includes an inner substrate, an outer substrate, and a first adhesive disposed between the inner substrate and the outer substrate. The second adhesive is disposed between the display panel and the cover. The display panel includes a flexible substrate and a display layer disposed between the flexible substrate and the cover. The display layer includes a self-emissive display element or a non-self-emissive display element. The flexible substrate includes a first substrate, a second substrate, and a third adhesive disposed between the first substrate and the second substrate. The first substrate is disposed between the third adhesive and the display layer. A distance is between an edge of the first adhesive and an edge of the inner substrate. The distance is greater than zero.

## Claims

### Claim 1

A display device, comprising:
a display panel;
a cover adhered to the display panel, the cover comprising:
an inner substrate;
an outer substrate; and
a first adhesive disposed between the inner substrate and the outer substrate; and
a second adhesive disposed between the display panel and the cover, wherein the display panel comprises a display layer and a flexible substrate, the display layer is disposed between the flexible substrate and the cover, and the display layer comprises a self-emissive display element or a non-self-emissive display element,
wherein the flexible substrate of the display panel comprises:
a first substrate;
a third adhesive; and
a second substrate, wherein the third adhesive is disposed between the first substrate and the second substrate, and the first substrate is disposed between the third adhesive and the display layer,
wherein a distance is between an edge of the first adhesive of the cover and an edge of the inner substrate of the cover, and the distance is greater than zero.

### Claim 2 (depends on 1)

The display device of claim 1, wherein the display layer comprises a self-emissive display element.

### Claim 3 (depends on 2)

The display device of claim 2, wherein the display layer comprises a light emitting diode element.

### Claim 4 (depends on 3)

The display device of claim 3, wherein the display layer further comprises a pixel defining layer, the pixel defining layer comprises an opening, and the light emitting diode element is disposed in the opening.

### Claim 5 (depends on 4)

The display device of claim 4, wherein the light emitting diode element is an organic light emitting diode element.

### Claim 6 (depends on 3)

The display device of claim 3, further comprising:
a touch sensing layer disposed between the display layer and the cover.

### Claim 7 (depends on 6)

The display device of claim 6, wherein the display layer comprises another light emitting diode element, the touch sensing layer comprises a sensing element, and in a top view, the sensing element is disposed between the light emitting diode element and the another light emitting diode element.

### Claim 8 (depends on 1)

The display device of claim 1, wherein a thickness of the outer substrate is greater than a thickness of the first adhesive.

### Claim 9 (depends on 8)

The display device of claim 8, wherein a ratio of the thickness of the outer substrate to the thickness of the first adhesive is greater than 2 and less than or equal to 60.

### Claim 10 (depends on 1)

The display device of claim 1, wherein the distance between the edge of the first adhesive and the edge of the inner substrate is greater than or equal to 1 micrometer and less than or equal to 10 micrometers.