# US 12,765,235 B2 · Display apparatus

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- Number: US 12,765,235 B2
- Document ID: US12765235B2
- Status: Granted
- Kind: B2
- Application number: 18/485,123
- Filed: 2023-10-11
- Published: 2024-05-23
- Granted: 2026-10-13
- Earliest claimed: 2022-11-23
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.
- Inventors: Hyunho Kim; Hyeonbum Lee; Donguk Kim; Hyoengki Kim; Hoongi Lee; Chaungi Choi; Jongbeom Hong
- Web page: https://patentgrep.com/patent/US12765235B2

## CPC

- H10K 59/873: {Encapsulations}
- H10K 59/122: Pixel-defining structures or layers, e.g. banks
- H10K 59/126: Shielding, e.g. light-blocking means over the TFTs
- H10K 59/8792: {comprising light absorbing layers, e.g. black layers}
- H10K 2102/351: {Thickness}
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## Abstract

A display apparatus includes: a substrate; a display element on the substrate; a thin-film encapsulation layer on the display element and including a first inorganic encapsulation layer, a first organic encapsulation layer, and a second inorganic encapsulation layer; a first light-shielding layer between the first inorganic encapsulation layer and the first organic encapsulation layer and having a first opening corresponding to an emission area of the display element; and a second light-shielding layer over the thin-film encapsulation layer and having a second opening corresponding to the emission area of the display element.

## Claims

### Claim 1

A display apparatus comprising:
a substrate;
a display element on a surface of the substrate facing in a first direction;
a thin-film encapsulation layer above the display element in the first direction and comprising a first inorganic encapsulation layer, a first organic encapsulation layer, and a second inorganic encapsulation layer;
a first light-shielding layer between the first inorganic encapsulation layer and the first organic encapsulation layer and having a first opening corresponding to an emission area of the display element; and
a second light-shielding layer over the thin-film encapsulation layer and having a second opening corresponding to the emission area of the display element,
wherein the first organic encapsulation layer is the nearest organic layer on the display element.

### Claim 2 (depends on 1)

The display apparatus of claim 1, wherein the first inorganic encapsulation layer comprises a first sub-layer comprising silicon nitride and a second sub-layer comprising silicon oxycarbide.

### Claim 3 (depends on 1)

The display apparatus of claim 1, wherein a size of the first opening is less than a size of the second opening.

### Claim 4 (depends on 1)

The display apparatus of claim 1, further comprising a pixel-defining layer between the substrate and the thin-film encapsulation layer and having an opening defining the emission area of the display element,
wherein a size of the opening in the pixel-defining layer is less than a size of the first opening.

### Claim 5 (depends on 4)

The display apparatus of claim 4, further comprising a spacer between the pixel-defining layer and the thin-film encapsulation layer and having a third opening overlapping the opening in the pixel-defining layer.

### Claim 6 (depends on 5)

The display apparatus of claim 5, wherein the pixel-defining layer comprises a light-shielding material.

### Claim 7 (depends on 5)

The display apparatus of claim 5, wherein the third opening is larger than the first opening and smaller than the second opening.

### Claim 8 (depends on 1)

The display apparatus of claim 1, wherein the thin-film encapsulation layer further comprises:
a second organic encapsulation layer on the second inorganic encapsulation layer; and
a third inorganic encapsulation layer.

### Claim 9 (depends on 1)

The display apparatus of claim 1, further comprising a touch sensing layer between the thin-film encapsulation layer and the second light-shielding layer.

### Claim 10 (depends on 1)

The display apparatus of claim 1, further comprising a color filter in the second opening in the second light-shielding layer.

### Claim 11 (depends on 1)

The display apparatus of claim 1, further comprising a reflection control layer in the second opening in the second light-shielding layer,
wherein the reflection control layer is configured to absorb light in a first wavelength range from 480 nm to 505 nm and light in a second wavelength range from 585 nm to 605 nm.

### Claim 12

A display apparatus comprising:
a substrate;
a display element on a surface of the substrate facing in a first direction;
a pixel-defining layer having an opening defining an emission area of the display element;
a thin-film encapsulation layer above the display element in the first direction and comprising a first inorganic encapsulation layer, a first organic encapsulation layer, and a second inorganic encapsulation layer;
a first light-shielding layer between the first inorganic encapsulation layer and the first organic encapsulation layer and having a first opening corresponding to an emission area of the display element; and
a second light-shielding layer over the thin-film encapsulation layer and having a second opening corresponding to the emission area of the display element,
wherein the first inorganic encapsulation layer comprises a plurality of stacked sub-layers, and
wherein the first organic encapsulation layer is the nearest organic layer on the display element.

### Claim 13 (depends on 12)

The display apparatus of claim 12, wherein a size of the first opening is greater than a size of the opening in the pixel-defining layer and less than a size of the second opening.

### Claim 14 (depends on 12)

The display apparatus of claim 12, wherein the first inorganic encapsulation layer comprises a first sub-layer and a second sub-layer that are stacked on each other,
wherein the first sub-layer and the second sub-layer comprise different materials from each other, and
wherein the first inorganic encapsulation layer has between one dyad and ten dyads.

### Claim 15 (depends on 14)

The display apparatus of claim 14, wherein the first sub-layer comprises silicon nitride, and the second sub-layer comprises silicon oxycarbide.

### Claim 16 (depends on 12)

The display apparatus of claim 12, further comprising a spacer between the pixel-defining layer and the thin-film encapsulation layer and having a third opening overlapping the opening in the pixel-defining layer,
wherein the pixel-defining layer comprises a light-shielding material.

### Claim 17 (depends on 16)

The display apparatus of claim 16, wherein the third opening is larger than the first opening and smaller than the second opening.

### Claim 18 (depends on 12)

The display apparatus of claim 12, wherein the thin-film encapsulation layer further comprises:
a second organic encapsulation layer on the second inorganic encapsulation layer; and
a third inorganic encapsulation layer, and
wherein the first inorganic encapsulation layer comprises different materials from the second inorganic encapsulation layer and the third inorganic encapsulation layer.

### Claim 19 (depends on 12)

The display apparatus of claim 12, further comprising a touch sensing layer between the thin-film encapsulation layer and the second light-shielding layer.

### Claim 20 (depends on 12)

The display apparatus of claim 12, further comprising a color filter in the second opening in the second light-shielding layer.
