# US 12,772,659 B2 · Display apparatus including transmission area having improved transmittance and method of manufacturing the same

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- Number: US 12,772,659 B2
- Document ID: US12772659B2
- Status: Granted
- Kind: B2
- Application number: 18/480,493
- Filed: 2023-10-03
- Published: 2024-01-25
- Granted: 2026-10-20
- Earliest claimed: 2020-09-17
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.
- Inventors: Hoon Kang; Taewook Kang; Heekyun Shin; Sanghyun Yun
- Web page: https://patentgrep.com/patent/US12772659B2

## CPC

- H10K 59/121: characterised by the geometry or disposition of pixel elements
- H10K 59/8731: {multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers}
- H10K 59/65: OLEDs integrated with inorganic image sensors
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## Abstract

Provided are a display apparatus and a method of manufacturing the display apparatus. The display apparatus includes a first barrier layer including a first display area, a second display area including transmission areas, and a non-display area, a first base layer on a lower surface of the first barrier layer, and defining a first opening that overlaps the second display area, a second base layer on an upper surface of the first barrier layer, and defining second openings that respectively overlap the transmission areas, a second barrier layer on an upper surface of the second base layer and defining third openings that overlap the second openings, main pixel electrodes over the second barrier layer in the first display area, and auxiliary pixel electrodes over the second barrier layer in the second display area.

## Claims

### Claim 1

A method of manufacturing a display apparatus, the method comprising:
forming main pixel electrodes over a second barrier layer of a first display area of a substrate, the substrate having a first barrier layer, a first base layer on a lower surface of the first barrier layer, a second base layer on an upper surface of the first barrier layer, and the second barrier layer on an upper surface of the second base layer;
forming auxiliary pixel electrodes over the second barrier layer between transmission areas in a second display area of the substrate;
forming second openings in the second base layer that overlap the transmission areas;
forming third openings in the second barrier layer that overlap the second openings; and
forming a first opening in the first base layer that overlaps the second display area,
wherein the first opening overlaps the transmission areas and the auxiliary pixel electrodes in a plan view.

### Claim 2 (depends on 1)

The method of claim 1, wherein the forming the first opening comprises-applying laser energy to a lower surface of the first base layer.

### Claim 3 (depends on 1)

The method of claim 1, further comprising:
forming a main opposite electrode overlapping the main pixel electrodes, over the main pixel electrodes; and
forming a first auxiliary opposite electrode overlapping the auxiliary pixel electrodes, and defining fourth openings overlapping the transmission areas, over the auxiliary pixel electrodes.

### Claim 4 (depends on 3)

The method of claim 3, wherein respective inner lateral surfaces of the third openings protrude inwardly more than respective inner lateral surfaces of the second openings.

### Claim 5 (depends on 4)

The method of claim 4, wherein, as viewed in a direction perpendicular to the upper surface of the first barrier layer, an area of each of the third openings is less than an area of each of the second openings.

### Claim 6 (depends on 1)

The method of claim 1, further comprising forming an encapsulation layer that covers the main pixel electrodes, the auxiliary pixel electrodes, respective inner lateral surfaces of the third openings, and respective inner lateral surfaces of the second openings.

### Claim 7 (depends on 1)

The method of claim 1, wherein the first base layer comprises an opaque material.