# US 12,222,755 B2 · Display device and electronic device including the same

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- Number: US 12,222,755 B2
- Document ID: US12222755B2
- Status: Granted
- Kind: B2
- Application number: 18/514,672
- Filed: 2023-11-20
- Published: 2024-03-21
- Granted: 2025-02-11
- Earliest claimed: 2021-06-14
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.
- Inventors: Sojeong La; Dongjin Park; Jaiku Shin; Jongmin Yang; Gyeongho Jeong; Sung Chul Choi
- Web page: https://patentgrep.com/patent/US12222755B2

## CPC

- G06F 1/1616: {with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position}
- G06F 1/1643: {the display being associated to a digitizer, e.g. laptops that can be used as penpads (details related to the relative motion of the display enclosure with respect to the body enclosure, e.g. to move between laptop and tablet PC configuration G06F1/1615)}
- G06F 1/1652: {the display being flexible, e.g. mimicking a sheet of paper, or rollable}
- G06F 1/1686: {the I/O peripheral being an integrated camera}
- G06F 3/0412: {Digitisers structurally integrated in a display}
- G06F 3/044: by capacitive means
- G06F 3/046: by electromagnetic means
- H10K 59/872: {Containers}
- G06F 2203/04102: Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper
- G06F 2203/04103: Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
- G06F 2203/04104: Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## Abstract

A display device may include a window module and a display module including a first non-folding region, a second non-folding region, and a folding region disposed between the first non-folding region and the second non-folding region. The display module may include a damping layer, a color filter layer, a display panel, and a lower member, which are sequentially stacked below the window module, and the damping layer may include polymer.

## Claims

### Claim 1

A display device comprising:
a window module that includes a thin glass substrate, a window protection layer disposed on the thin glass substrate and a first adhesive layer disposed between the window protection layer and the thin glass substrate; and
a display module including a first non-folding region, a second non-folding region, and a folding region disposed between the first non-folding region and the second non-folding region, wherein
the display module comprises:
a second adhesive layer disposed below the thin glass substrate;
a damping layer disposed below the second adhesive layer;
a third adhesive layer disposed below the damping layer;
a color filter layer disposed below the third adhesive layer;
an input sensor disposed below the color filter layer; and
a display panel disposed below the input sensor, and
the damping layer comprises polymer.

### Claim 2 (depends on 1)

The display device of claim 1, wherein a thickness of the damping layer is in a range of about 5 μm to about 30 μm.

### Claim 3 (depends on 1)

The display device of claim 1, wherein the first adhesive layer is disposed directly between the window protection layer and the thin glass substrate.

### Claim 4 (depends on 1)

The display device of claim 1, wherein a modulus value of the damping layer is smaller than a modulus value of the window protection layer.

### Claim 5 (depends on 1)

The display device of claim 1, wherein the second adhesive layer is disposed directly between the damping layer and the thin glass substrate.

### Claim 6 (depends on 1)

The display device of claim 1, further comprising:
a panel protection layer disposed below the display panel; and
a fourth adhesive layer attaching the panel protection layer to the display panel,
wherein a thickness of the fourth adhesive layer is in a range of about 20 μm to about 30 μm.

### Claim 7 (depends on 1)

The display device of claim 1, further comprising:
a lower member, the lower member comprising a support layer including a nonmetal and a digitizer disposed below the support layer.

### Claim 8 (depends on 7)

The display device of claim 7, wherein the nonmetal is a reinforced fiber.

### Claim 9 (depends on 7)

The display device of claim 7, wherein
the lower member includes a penetration hole that overlaps at least one of the first non-folding region and the second non-folding region in a plan view, and
the display panel overlaps the penetration hole in a plan view.

### Claim 10 (depends on 1)

The display device of claim 1, wherein the damping layer comprises at least one of polyimide, polycarbonate, polyamide, triacetylcellulose, polymethylmethacrylate, and polyethylene terephthalate.

### Claim 11 (depends on 1)

The display device of claim 1, wherein
the third adhesive layer is disposed between the damping layer and the color filter layer, and
the third adhesive layer is disposed directly below the damping layer.

### Claim 12 (depends on 1)

The display device of claim 1, wherein the color filter layer comprising:
color filter patterns;
a division pattern; and
a planarization layer covering the color filter patterns and the division pattern, and disposed directly below the damping layer.

### Claim 13 (depends on 1)

The display device of claim 1, wherein the input sensor is disposed directly between the display panel and the color filter layer.

### Claim 14 (depends on 1)

The display device of claim 1, wherein
the input sensor comprises:
a base layer disposed directly on the display panel;
a first conductive layer disposed on the base layer;
a sensing insulating layer covering the first conductive layer; and
a second conductive layer disposed on the sensing insulating layer, and
the first conductive layer and the second conductive layer include a mesh-shaped sensing electrode.

### Claim 15

A display device comprising:
a window module that includes a thin glass substrate, a window protection layer disposed on the thin glass substrate and a first adhesive layer disposed between the window protection layer and the thin glass substrate;
a display panel disposed below the window module, the display panel including:
a first non-folding region;
a second non-folding region; and
a folding region;
a color filter layer disposed on the display panel, the color filter layer comprising:
color filter patterns; and
a division pattern;
a damping layer disposed on the color filter layer, the damping layer comprising polymer; and
a input sensor disposed directly between the display panel and the color filter layer.

### Claim 16 (depends on 15)

The display device of claim 15, further comprising:
a lower member disposed below the display panel,
wherein the lower member comprises:
a panel protection layer disposed below the display panel;
a support layer disposed below the panel protection layer, the support layer comprising a nonmetal; and
a digitizer disposed below the support layer.

### Claim 17 (depends on 16)

The display device of claim 16, wherein the nonmetal is a reinforced fiber.

### Claim 18 (depends on 15)

The display device of claim 15, wherein a thickness of the damping layer is in a range of about 5 μm to about 30 μm.

### Claim 19

An electronic device comprising:
a display device including:
a first display region allowing for transmission of an optical signal;
a second display region adjacent to the first display region; and
a peripheral region adjacent to the second display region; and
an electro-optical module disposed below the display device and overlapping the first display region in a plan view, the electro-optical module receiving the optical signal, wherein
the display device comprises:
a window module; and
a display module including:
a first non-folding region;
a second non-folding region; and
a folding region disposed between the first non-folding region and the second non-folding region,
the display module comprises:
a second adhesive layer disposed below the window module;
a damping layer disposed below the second adhesive layer;
a third adhesive layer disposed below the damping layer;
a color filter layer disposed below the third adhesive layer;
an input sensor disposed below the color filter layer; and
a display panel disposed below the input sensor, and
the damping layer comprises polymer.

### Claim 20 (depends on 19)

The electronic device of claim 19, wherein the color filter layer comprises:
color filter patterns; and
a division pattern.

### Claim 21 (depends on 19)

The electronic device of claim 19, wherein a thickness of the damping layer is in a range of about 5 μm to about 30 μm.

### Claim 22 (depends on 19)

The electronic device of claim 19, wherein the electro-optical module comprises a camera module.