# US 11,309,368 B2 · Display device and method for manufacturing the same

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- Number: US 11,309,368 B2
- Document ID: US11309368B2
- Status: Granted
- Kind: B2
- Application number: 17/197,990
- Filed: 2021-03-10
- Published: 2021-06-24
- Granted: 2022-04-19
- Earliest claimed: 2017-06-14
- Assignees: LG Display Co., Ltd.
- Applicants: LG Display Co., Ltd.
- Inventors: Hyangmyoung Gwon; Byonghoo Kim; Sangheun Lee
- Web page: https://patentgrep.com/patent/US11309368B2

## CPC

- G06F 3/0412: {Digitisers structurally integrated in a display}
- G06F 3/04164: {Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads}
- G06F 3/044: by capacitive means
- G06F 3/0443: {using a single layer of sensing electrodes}
- G06F 3/0445: {using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer}
- G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes}
- G09G 3/3291: in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements
- H10K 50/125: specially adapted for multicolour light emission, e.g. for emitting white light
- H10K 50/15: Hole transporting layers
- H10K 50/16: Electron transporting layers
- H10K 59/1213: {the pixel elements being TFTs}
- H10K 59/122: Pixel-defining structures or layers, e.g. banks
- H10K 59/124: Insulating layers formed between TFT elements and OLED elements
- H10K 59/40: OLEDs integrated with touch screens
- H10K 59/8731: {multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers}
- H10K 71/00: Manufacture or treatment specially adapted for the organic devices covered by this subclass
- G06F 2203/04103: Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
- G06F 2203/04111: Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
- G09G 2310/08: Details of timing specific for flat panels, other than clock recovery
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00)
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## Abstract

A display device and a method for manufacturing the same are disclosed, which may prevent a crack from occurring on an inorganic film constituting an encapsulation film and prevent a residual film from occurring. The display device comprises a substrate including a display area on which pixels area arranged, and a non-display area surrounding the display area; an encapsulation film covering the display area and including an organic film; a first dam arranged to be in contact with the encapsulation film, having a second side which is an opposite side of a first side facing the organic film and has an inclination smaller than 90°; and a metal pattern pattern-formed on the first dam.

## Claims

### Claim 1

A display device comprising:
a substrate including a display area on which pixels area arranged and a non-display area surrounding the display area;
an encapsulation film covering the display area, and including an organic film and at least one inorganic film covering the organic film;
a first dam in contact with the at least one inorganic film, and including a first side surface and a second side surface, wherein the first side surface is disposed closer to the organic film than second side surface, and the second side surface has an inclination larger than 0° and equal to or smaller than 45° with respect to the substrate,
a metal pattern layer overlapped with the first dam and the at least one inorganic film; and
a touch sensing layer disposed on the encapsulation film,
wherein the metal pattern layer is connected electrically to the touch sensing layer, and is extended from the touch sensing layer.

### Claim 2 (depends on 1)

The display device of claim 1, wherein the first side surface of the first dam has an inclination larger than 0° and smaller than 90° with respect to the substrate.

### Claim 3 (depends on 2)

The display device of claim 2, wherein the second side surface has an inclination smaller than that of the first side surface.

### Claim 4 (depends on 1)

The display device of claim 1, further comprising a second dam disposed outside the first dam.

### Claim 5 (depends on 4)

The display device of claim 4, wherein the at least one inorganic film covers the first dam and the second dam.

### Claim 6 (depends on 4)

The display device of claim 4, wherein the second dam includes a third side surface facing the first dam and a fourth side surface which is opposite to the third side surface.

### Claim 7 (depends on 6)

The display device of claim 6, wherein the second side surface and the third side surface are spaced apart from each other at an inclination larger than 0° and equal to or smaller than 45° with respect to the substrate.

### Claim 8 (depends on 6)

The display device of claim 6, wherein the fourth side surface has an inclination smaller than those of the first to third side surfaces.

### Claim 9 (depends on 6)

The display device of claim 6, wherein the first side surface has an inclination greater than those of the second to fourth side surfaces.

### Claim 10 (depends on 1)

The display device of claim 1, wherein the touch sensing layer is including first touch electrodes, second touch electrodes, and bridge electrodes electrically connecting the first touch electrodes.

### Claim 11 (depends on 10)

The display device of claim 10, wherein first touch electrodes and second touch electrodes are on the same layer.

### Claim 12 (depends on 10)

The display device of claim 10, further comprising an insulation layer disposed between the encapsulation film and the touch sensing layer.
