# US 11,307,695 B2 · Display device and method of manufacturing the same

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- Number: US 11,307,695 B2
- Document ID: US11307695B2
- Status: Granted
- Kind: B2
- Application number: 17/077,861
- Filed: 2020-10-22
- Published: 2021-02-11
- Granted: 2022-04-19
- Earliest claimed: 2017-10-31
- Assignees: LG Display Co., Ltd.
- Applicants: LG Display Co., Ltd.
- Inventors: Hyangmyoung Gwon; MinJoo Kim; JaeWon Lee; SangHoon Pak; Byonghoo Kim; Sangheun Lee; Sanghyuk Won; Jeonghoon Lee; Sungjin Kim; Jaehyung Jang; Yuna Lee
- Web page: https://patentgrep.com/patent/US11307695B2

## 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 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes}
- G09G 3/3225: using an active matrix
- H10K 59/122: Pixel-defining structures or layers, e.g. banks
- H10K 59/131: Interconnections, e.g. wiring lines or terminals
- H10K 59/40: OLEDs integrated with touch screens
- H10K 59/8731: {multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers}
- G06F 2203/04102: Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper
- 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 3/20: for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix {no fixed position being assigned to or needed to be assigned to the individual characters or partial characters}
- G09G 2310/0264: Details of driving circuits
- H10K 59/30: Devices specially adapted for multicolour light emission
- Y02E 10/549: Organic PV cells
- 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
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

A display device and a method of manufacturing the same are disclosed, in which arcing may be prevented from occurring. The display device comprises a first substrate including a display area on which pixels are arranged, and a non-display area surrounding the display area; a dam surrounding the display area, arranged on the non-display area; a pad electrode arranged outside the dam; and an encapsulation film covering the display area and including a first inorganic film and a second inorganic film arranged on the first inorganic film, wherein the second inorganic film is overlapped with the pad electrode.

## Claims

### Claim 1

A display device comprising:
a first substrate including a display area on which pixels are arranged and a non-display area including a pad area and a bending area disposed between the pad area and the display area;
a dam disposed between the bending area and the display area;
a pad electrode disposed at the pad area;
an encapsulation film including a first inorganic film, a second inorganic film on the first inorganic film, and an organic film between the first inorganic film and the second inorganic film, and the organic film of the encapsulation film covers the display area; and
an organic pattern disposed between the dam and the pad electrode,
a touch sensing layer disposed on the second inorganic film, and including a bridge electrode, a first touch electrodes, a second touch electrode and a touch insulating film between the first and second touch electrodes and the bridge electrode,
a touch line disposed on the touch insulating film of the touch sensing layer, and including a first touch line electrically connected with the first touch electrode and a second touch line electrically connected with the second touch electrode, and
a connection line being electrically connected to the pad electrode and the touch line, and including first, second and third connection lines,
wherein the second connection line is electrically connected with one side of the first connection line, and the third connection line is disposed on the same layer as the second connection line, spaced apart from the second connection line and electrically connected with the other side of the first connection line.

### Claim 2 (depends on 1)

The display device of claim 1, wherein the touch line overlaps the dam disposed between the first substrate and the first inorganic film of the encapsulation film.

### Claim 3 (depends on 1)

The display device according to claim 1, wherein the organic pattern is arranged at the bending area.

### Claim 4 (depends on 3)

The display device according to claim 3, wherein the organic pattern is disposed on at least a portion of an upper surface of the connection line.

### Claim 5 (depends on 2)

The display device according to claim 2, wherein the first inorganic film covers the dam and is arranged at the pad area, and
wherein the second inorganic film is disposed on the organic film to cover the organic film, arranged at the pad area and overlapped with the dam.

### Claim 6 (depends on 5)

The display device according to claim 5, wherein an end of the first inorganic film and an end of the second inorganic film are in line with each other.

### Claim 7 (depends on 1)

The display device according to claim 1, further comprising:
a thin film transistor provided at the display area of the first substrate; and
a planarization film arranged on the thin film transistor.

### Claim 8 (depends on 7)

The display device according to claim 7, wherein the organic pattern is disposed in the same layer as the planarization film.

### Claim 9 (depends on 7)

The display device according to claim 7, wherein the first connection line is disposed in the same layer as a gate electrode of the thin film transistor.

### Claim 10 (depends on 8)

The display device according to claim 8, wherein the second connection line and the third connection lie are disposed in the same layer as a source electrode and a drain electrode of the thin film transistor.

### Claim 11 (depends on 10)

The display device according to claim 10, wherein the encapsulation film is not disposed on at least portion of the upper surface of the organic pattern.

### Claim 12 (depends on 1)

The display device according to claim 1, wherein the first touch line is electrically connected with the third connection line through a touch contact hole, and
wherein the pad electrode is electrically connected with the second connection line through a pad contact hole.

### Claim 13 (depends on 7)

The display device according to claim 7, further comprising a line protective film covering an end of the second connection line, wherein the line protective film is arranged on the same layer as the planarization film.

### Claim 14 (depends on 1)

The display device according to claim 1, wherein the bridge electrode is disposed on the second inorganic film of the encapsulation film, and the first and second touch electrodes are disposed on the touch insulating film, and
wherein the bridge electrode is connected with the first touch electrode through a contact hole of the touch insulating film.
