# US 2019/0173053 A1 · Display apparatus and method of manufacturing the same

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- Number: US 2019/0173053 A1
- Document ID: US20190173053A1
- Status: Published application
- Kind: A1
- Application number: 16/273,042
- Filed: 2019-02-11
- Published: 2019-06-06
- Earliest claimed: 2016-02-12
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.
- Inventors: Jonghyun Choi; Kinyeng Kang; Suyeon Sim
- Web page: https://patentgrep.com/patent/US20190173053A1

## CPC

- G04B 19/12: Selection of materials for dials or graduations {markings}
- G04B 19/04: Hands; Discs with a single mark or the like {(moving indicating arrangements which have scales or numbers with stationary hands or reading means G04B19/20; optical projection of the position of the hands G04B19/34)}
- G06F 3/0412: {Digitisers structurally integrated in a display}
- H10K 59/40: OLEDs integrated with touch screens
- H10K 59/873: {Encapsulations}
- H10K 59/1201: {Manufacture or treatment}
- H10K 59/121: characterised by the geometry or disposition of pixel elements
- H10K 59/8722: {Peripheral sealing arrangements, e.g. adhesives, sealants}
- G04B: MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS (spring- or weight-driven mechanisms in general F03G; electromechanical clocks or watches G04C; electromechanical clocks with attached or built-in means operating any device at pre-selected times or after predetermined time intervals G04C23/00; clocks or watches with stop devices G04F7/08)
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## Abstract

A method of manufacturing a display apparatus includes providing a substrate, forming a display unit defining an opening portion in a display region over the substrate, forming a thin film encapsulation layer to seal the display unit, forming a touch electrode over the thin film encapsulation layer, forming a touch insulating film covering the touch electrode such that the thin film encapsulation layer and the touch insulating film are sequentially stacked and formed over the substrate in the opening portion, forming a touch contact hole by removing a portion of the touch insulating film to expose a portion of the touch electrode, and removing a portion of the touch insulating film and a portion of the thin film encapsulation layer formed in the opening portion to expose a portion of the substrate during the forming of the touch contact hole.

## Claims

### Claim 1

A display apparatus comprising:
a substrate defining a hole;
a display unit over the substrate, comprising a display region, and defining an opening portion in the display region;
a thin film encapsulation layer for sealing the display unit;
a touch electrode over the thin film encapsulation layer; and
a touch insulating film over the thin film encapsulation layer to cover the touch electrode, and defining a touch contact hole,
wherein a portion of the thin film encapsulation layer and a portion the touch insulating film are sequentially stacked in the opening portion and form a barrier portion.

### Claim 2 (depends on 1)

The display apparatus of claim 1, wherein the thin film encapsulation layer comprises at least one inorganic film and at least one organic film, and wherein the barrier portion comprises a first layer comprising the at least one inorganic film, and a second layer comprising the touch insulating film.

### Claim 3 (depends on 1)

The display apparatus of claim 1, wherein the barrier portion defines a valley exposing a surface of the substrate.

### Claim 4 (depends on 1)

The display apparatus of claim 1, further comprising a touch line over the touch insulating film and contacting the touch electrode through the touch contact hole.

### Claim 5 (depends on 1)

The display apparatus of claim 1, wherein the opening portion has a larger width than the hole of the substrate.

### Claim 6 (depends on 1)

The display apparatus of claim 1, further comprising a passivation layer in the opening portion and covering the barrier portion.

### Claim 7 (depends on 1)

The display apparatus of claim 1, further comprising an upper dam and a buffer layer over the thin film encapsulation layer, wherein the upper dam is at an edge of the opening portion to prevent the buffer layer from spreading to the opening portion.