# US 12,010,905 B2 · Display apparatus including a substrate having a hole

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- Number: US 12,010,905 B2
- Document ID: US12010905B2
- Status: Granted
- Kind: B2
- Application number: 18/190,811
- Filed: 2023-03-27
- Published: 2023-07-20
- Granted: 2024-06-11
- Earliest claimed: 2015-10-16
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.
- Inventors: Sunkwang Kim; Kinyeng Kang
- Web page: https://patentgrep.com/patent/US12010905B2

## CPC

- H10K 59/124: Insulating layers formed between TFT elements and OLED elements
- H10K 71/231: {by etching of existing layers}
- H10K 77/10: Substrates, e.g. flexible substrates
- H10D 86/431: {having different compositions, shapes, layouts or thicknesses of gate insulators in different TFTs}
- H10D 86/60: wherein the TFTs are in active matrices
- H10K 59/1201: {Manufacture or treatment}
- H10K 59/8731: {multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers}
- Y02E 10/549: Organic PV cells
- Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10D: INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

## Abstract

A display apparatus includes a substrate including at least one hole disposed in a hole area of the substrate, a thin film transistor disposed on the substrate, a light-emitting component disposed on the substrate and electrically connected to the thin film transistor, an insulating layer disposed on the substrate, a thin film encapsulation layer disposed on the substrate, and a laser blocking layer. The substrate includes a display area and a non-display area that is disposed between the display area and the hole area. The laser blocking layer is disposed on the insulating layer in the non-display area.

## Claims

### Claim 1

A display apparatus, comprising:
a substrate including a front surface and a rear surface, the substrate having a hole that passes from the front surface to the rear surface;
a plurality of light-emitting elements on the front surface of the substrate and defining a display area around the hole, each of the plurality of light-emitting elements being electrically connected to a transistor and a capacitor;
two dams spaced apart from each other in a non-display area of the substrate and disposed between the hole and the display area, each of the two dams extending along an edge of the hole of the substrate to entirely surround the hole of the substrate in a plan view;
an encapsulation layer over the plurality of light-emitting elements and comprising a first inorganic layer, a second inorganic layer, and an organic layer between the first inorganic layer and the second inorganic layer; and
a plurality of metal layers, in the non-display area, arranged between the two dams and the hole of the substrate.

### Claim 2 (depends on 1)

The display apparatus of the claim 1, wherein the first inorganic layer overlaps the plurality of metal layers.

### Claim 3 (depends on 1)

The display apparatus of the claim 1, wherein, in a plan view, each of the plurality of metal layers surrounds the hole in the non-display area.

### Claim 4 (depends on 1)

The display apparatus of the claim 1, wherein the plurality of metal layers comprises a first metal layer that includes a multi-layered structure.

### Claim 5 (depends on 4)

The display apparatus of the claim 4, wherein the plurality of metal layers further comprises a second metal layer overlapped by the first metal layer.

### Claim 6 (depends on 5)

The display apparatus of the claim 5, further comprising:
an inorganic insulation layer that is under the first metal layer and over the second metal layer.

### Claim 7 (depends on 1)

The display apparatus of the claim 1, wherein the two dams comprise a first dam closer to the display area and a second dam disposed between the first dam and the plurality of metal layers, and
wherein, in a plan view, the first and second dams surround the hole in the non-display area.

### Claim 8 (depends on 7)

The display apparatus of the claim 7, wherein a part of the second inorganic layer of the encapsulation layer is in direct contact with a part of the first inorganic layer between the first dam and the second dam.

### Claim 9 (depends on 8)

The display apparatus of the claim 8, further comprising:
an additional organic layer over the second inorganic layer of the encapsulation layer.

### Claim 10 (depends on 9)

The display apparatus of the claim 9, wherein a contact region of the part of the second inorganic layer and the part of the first inorganic layer of the encapsulation layer is overlapped by the additional organic layer.

### Claim 11 (depends on 9)

The display apparatus of the claim 9, wherein an edge of the additional organic layer is closer to the hole than an edge of the organic layer of the encapsulation layer.

### Claim 12 (depends on 7)

The display apparatus of the claim 7, further comprising:
a plurality of metal lines arranged between the display area and the first dam.

### Claim 13 (depends on 12)

The display apparatus of the claim 12, wherein each of the plurality of metal lines comprises a multi-layered structure, and the multi-layered structure comprises an aluminum (Al) layer.

### Claim 14 (depends on 13)

The display apparatus of the claim 13, wherein the plurality of metal lines comprises same material as an electrode of the transistor or the capacitor,
wherein the transistor comprises a semiconductor layer, a gate electrode overlapping a channel region of the semiconductor layer, and a first electrode connected to a source or drain region of the semiconductor layer, and
wherein the gate electrode or the first electrode comprises a multi-layered structure.

### Claim 15 (depends on 14)

The display apparatus of the claim 14, wherein the multi-layered structure comprises a three-layered structure of titanium (Ti), aluminum (Al), and titanium (Ti).

### Claim 16

An electronic device, comprising:
a display apparatus, wherein the display apparatus, comprises:
a substrate including a front surface and a rear surface, the substrate having a hole that passes from the front surface to the rear surface;
a plurality of light-emitting elements on the front surface of the substrate and defining a display area around the hole, each of the plurality of light-emitting elements being electrically connected to a transistor and a capacitor;
two dams spaced apart from each other in a non-display area of the substrate and disposed between the hole and the display area, each of the two dams extending along an edge of the hole of the substrate to entirely surround the hole of the substrate in a plan view;
an encapsulation layer over the plurality of light-emitting elements and comprising a first inorganic layer, a second inorganic layer, and an organic layer between the first inorganic layer and the second inorganic layer; and
a plurality of metal layers, in the non-display area, arranged between the two dams and the hole of the substrate.

### Claim 17 (depends on 16)

The electronic device of claim 16, wherein the two dams comprise a first dam closer to the display area and a second dam disposed between the first dam and the plurality of metal layers,
wherein, in a plan view, the first and second dams surround the hole in the non-display area, and
wherein the display apparatus further comprises a plurality of metal lines arranged between the display area and the first dam.

### Claim 18 (depends on 17)

The electronic device of claim 17, wherein a part of the second inorganic layer of the encapsulation layer is in direct contact with a part of the first inorganic layer between the first dam and the second dam.

### Claim 19

A display apparatus, comprising:
a substrate including a front surface and a rear surface, the substrate having a hole that passes from the front surface to the rear surface;
a plurality of light-emitting elements on the front surface of the substrate and defining a display area around the hole, each of the plurality of light-emitting elements being electrically connected to a transistor and a capacitor;
two dams spaced apart from each other in a non-display area of the substrate and disposed between the hole and the display area, each of the two dams extending along an edge of the hole of the substrate to entirely surround the hole of the substrate in the plan view;
an encapsulation layer over the plurality of light-emitting elements and comprising a first inorganic layer, a second inorganic layer, and an organic layer between the first inorganic layer and the second inorganic layer; and
an additional organic layer over the second inorganic layer, wherein the additional organic layer overlaps the two dams.

### Claim 20 (depends on 19)

The display apparatus of the claim 19, wherein:
an edge of the organic layer of the encapsulation layer is disposed in the non-display area,
an edge of the additional organic layer is closer to the hole than the edge of the organic layer of the encapsulation layer, and
a part of the additional organic layer overlaps a part of the organic layer of the encapsulation layer in the display area.

### Claim 21 (depends on 19)

The display apparatus of the claim 19, wherein, in the non-display area, a part of the second inorganic layer of the encapsulation layer is in direct contact with a part of the first inorganic layer, and
wherein a contact region of the part of the second inorganic layer and the part of the first inorganic layer of the encapsulation layer is overlapped by the additional organic layer.

### Claim 22 (depends on 19)

The display apparatus of the claim 19, further comprising:
a plurality of metal layers surrounding the hole in the non-display area in a plan view,
wherein the plurality of metal layers are arranged between the two dams and the hole of the substrate.

### Claim 23 (depends on 22)

The display apparatus of the claim 22, wherein the plurality of metal layers is overlapped by a portion of the first inorganic layer and a portion of the additional organic layer.

### Claim 24 (depends on 22)

The display apparatus of the claim 22, wherein the plurality of metal layers comprises a first metal layer that includes a multi-layered structure.

### Claim 25 (depends on 24)

The display apparatus of the claim 24, wherein the plurality of metal layers further comprises a second metal layer, wherein the second metal layer is overlapped by the first metal layer with an inorganic insulation layer therebetween.

### Claim 26 (depends on 19)

The display apparatus of the claim 19, wherein the two dams comprises a first dam closer to the display area and a second dam disposed between the first dam and the plurality of metal layers, and
wherein the first and second dams surround the hole in the non-display area in the plan view.

### Claim 27 (depends on 19)

The display apparatus of the claim 19, further comprising:
a plurality of metal lines arranged between the display area and the two dam.

### Claim 28 (depends on 27)

The display apparatus of the claim 27, wherein each of the plurality of metal lines comprises a multi-layered structure, and the multi-layered structure comprises an aluminum (Al) layer.

### Claim 29 (depends on 27)

The display apparatus of the claim 27, wherein the plurality of metal lines comprises same material as an electrode of the transistor or the capacitor,
wherein the transistor comprises a semiconductor layer, a gate electrode overlapping a channel region of the semiconductor layer, and a first electrode connected to a source or drain region of the semiconductor layer, and
wherein the gate electrode or the first electrode comprises a multi-layered structure.

### Claim 30 (depends on 29)

The display apparatus of the claim 29, wherein the multi-layered structure comprises a three-layered structure of titanium (Ti), aluminum (Al), and titanium (Ti).

### Claim 31

An electronic device, comprising:
a display apparatus, wherein the display apparatus, comprises:
a substrate including a front surface and a rear surface, the substrate having a hole that passes from the front surface to the rear surface;
a plurality of light-emitting elements on the front surface of the substrate and defining a display area around the hole, each of the plurality of light-emitting elements being electrically connected to a transistor and a capacitor;
two dams spaced apart from each other in a non-display area of the substrate and disposed between the hole and the display area, each of the two dams extending along an edge of the hole of the substrate to entirely surround the hole of the substrate in the plan view;
an encapsulation layer over the plurality of light-emitting elements and comprising a first inorganic layer, a second inorganic layer, and an organic layer between the first inorganic layer and the second inorganic layer; and
an additional organic layer over the second inorganic layer, wherein the additional organic layer overlaps the two dams.

### Claim 32 (depends on 31)

The electronic device of claim 31, wherein:
an edge of the organic layer of the encapsulation layer is disposed in the non-display area,
an edge of the additional organic layer is closer to the hole than the edge of the organic layer of the encapsulation layer, and
a part of the additional organic layer overlaps a part of the organic layer of the encapsulation layer in the display area.

### Claim 33

A display apparatus, comprising:
a substrate including a front surface and a rear surface, the substrate having a hole that passes from the front surface to the rear surface;
a light-emitting element on the front surface of the substrate, the light-emitting element being disposed in a display area around the hole and comprising a first electrode, a second electrode, and an intermediate layer between the first electrode and the second electrode;
a first dam in a non-display area between the hole and the display area, the first dam extending along an edge of the hole of the substrate to entirely surround the hole of the substrate in the plan view; and
an encapsulation layer over the plurality of light-emitting elements and comprising a first inorganic layer, a second inorganic layer, and an organic layer between the first inorganic layer and the second inorganic layer,
wherein the second electrode of the light-emitting element extends to the non-display area, and an edge of the second electrode is located between the display area and the first dam.

### Claim 34 (depends on 33)

The display apparatus of claim 33, wherein the first inorganic layer extends to the non-display area, and the edge of the second electrode of the light-emitting element is overlapped by the first inorganic layer.

### Claim 35 (depends on 34)

The display apparatus of claim 34, wherein the edge of the second electrode of the light-emitting element is overlapped by the organic layer of the encapsulation layer.

### Claim 36 (depends on 33)

The display apparatus of claim 33, further comprising:
an additional organic layer overlapping the first dam and disposed over the second inorganic layer of the encapsulation layer,
wherein an edge of the additional organic layer is closer to the hole than an edge of the organic layer of the encapsulation layer.

### Claim 37

An electronic device, comprising:
a display apparatus, wherein the display apparatus, comprises:
a substrate including a front surface and a rear surface, the substrate having a hole that passes from the front surface to the rear surface;
a light-emitting element on the front surface of the substrate, the light-emitting element being disposed in a display area around the hole and comprising a first electrode, a second electrode, and an intermediate layer between the first electrode and the second electrode;
a first dam in a non-display area between the hole and the display area, the first dam extending along an edge of the hole of the substrate to entirely surround the hole of the substrate in the plan view; and
an encapsulation layer over the plurality of light-emitting elements and comprising a first inorganic layer, a second inorganic layer, and an organic layer between the first inorganic layer and the second inorganic layer,
wherein the second electrode of the light-emitting element extends to the non-display area, and an edge of the second electrode is located between the display area and the first dam.

### Claim 38 (depends on 37)

The electronic device of claim 37, wherein the edge of the second electrode of the light-emitting element is overlapped by the organic layer of the encapsulation layer.