# US 10,121,979 B2 · Display device

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 10,121,979 B2
- Document ID: US10121979B2
- Status: Granted
- Kind: B2
- Application number: 15/788,859
- Filed: 2017-10-20
- Published: 2018-05-03
- Granted: 2018-11-06
- Earliest claimed: 2016-10-31
- Assignees: Japan Display Inc.
- Applicants: Japan Display Inc.
- Inventors: Takayasu Suzuki
- Web page: https://patentgrep.com/patent/US10121979B2

## CPC

- H10K 77/111: {Flexible substrates}
- H10K 59/8722: {Peripheral sealing arrangements, e.g. adhesives, sealants}
- H10K 59/8731: {multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers}
- G06F 1/1652: {the display being flexible, e.g. mimicking a sheet of paper, or rollable}
- H10K 2102/311: {Flexible OLED}
- Y02E 10/549: Organic PV cells
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

A display device includes: a flexible display including a flexible substrate and a plurality of light emitting elements provided on the flexible substrate; an adhesive layer; and a film attached to the flexible display with the adhesive layer. The adhesive layer is provided avoiding a plurality of blank areas linearly arranged in at least one direction on a surface of the flexible display.

## Claims

### Claim 1

A display device comprising:
a flexible display including a flexible substrate and a plurality of light emitting elements provided on the flexible substrate;
an adhesive layer; and
a film attached to the flexible display with the adhesive layer, wherein
the adhesive layer is provided avoiding a plurality of blank areas linearly arranged in at least one direction on a surface of the flexible display,
the adhesive layer includes a peripheral edge portion along an external shape of the film,
the peripheral edge portion surrounds the whole of the plurality of blank areas,
the flexible display further includes a sealing layer covering the plurality of light emitting elements,
the sealing layer includes an organic film and a pair of inorganic films vertically interposing the organic film therebetween and vertically overlapping and in contact with each other around the organic film,
the adhesive layer is provided to project from an area overlapping the organic film, and
the plurality of blank areas are located at positions overlapping the organic film.

### Claim 2 (depends on 1)

The display device according to claim 1, wherein
the plurality of blank areas include a plurality of first portions arranged in a first direction and a plurality of second portions arranged in a second direction crossing the first direction.

### Claim 3 (depends on 2)

The display device according to claim 2, wherein
a width of the plurality of first portions and a width of the plurality of second portions are different in size.

### Claim 4 (depends on 3)

The display device according to claim 3, wherein
the flexible substrate has an external shape of a rectangle,
the first direction is a direction along a short side of the rectangle,
the second direction is a direction along a long side of the rectangle, and
the width of the plurality of first portions is larger than the width of the plurality of second portions.

### Claim 5 (depends on 1)

The display device according to claim 1, wherein
the flexible substrate includes a first surface and a second surface,
the film includes a first film provided on a side of the first surface and a second film provided on a side of the second surface,
the adhesive layer includes a first adhesive layer for attaching the first film and a second adhesive layer for attaching the second film, and
the plurality of blank areas include a plurality of first blank areas that the first adhesive layer avoids and a plurality of second blank areas that the second adhesive layer avoids.

### Claim 6 (depends on 5)

The display device according to claim 5, wherein
the plurality of first blank areas and the plurality of second blank areas at least partially overlap.

### Claim 7 (depends on 6)

The display device according to claim 6, wherein
a group of at least a portion of the plurality of first blank areas and a group of at least a portion of the plurality of second blank areas overlap each other and are arranged in the same direction, and
a width of the group of the at least a portion of the plurality of first blank areas and a width of the group of the at least a portion of the plurality of second blank areas are different in size.

### Claim 8 (depends on 7)

The display device according to claim 7, wherein
the plurality of light emitting elements are provided on the side of the first surface of the flexible substrate, and
the width of the group of the at least a portion of the plurality of first blank areas is larger than the width of the group of the at least a portion of the plurality of second blank areas.

### Claim 9 (depends on 7)

The display device according to claim 7, wherein
the plurality of light emitting elements are provided on the side of the first surface of the flexible substrate, and
the width of the group of the at least a portion of the plurality of first blank areas is smaller than the width of the group of the at least a portion of the plurality of second blank areas.

### Claim 10 (depends on 6)

The display device according to claim 6, wherein
first areas of the plurality of first blank areas and second areas of the plurality of second blank areas overlap each other and are arranged in the same direction,
third areas of the plurality of first blank areas and fourth areas of the plurality of second blank areas overlap each other and are arranged in the same direction,
a width of the first area is larger than a width of the second area, and
a width of the fourth area is larger than a width of the third area.