# US 10,310,341 B2 · Display device and method of manufacturing the same

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- Number: US 10,310,341 B2
- Document ID: US10310341B2
- Status: Granted
- Kind: B2
- Application number: 15/188,503
- Filed: 2016-06-21
- Published: 2016-12-29
- Granted: 2019-06-04
- Earliest claimed: 2015-06-29
- Assignees: LG Display Co., Ltd.
- Applicants: LG Display Co., Ltd.
- Inventors: WonJun Choi; SungLim Nam; Misun Park; Jaewoong Choi; Younghyun Kong
- Web page: https://patentgrep.com/patent/US10310341B2

## CPC

- G02F 1/13452: {Conductors connecting driver circuitry and terminals of panels}
- G02F 1/133345: {Insulating layers (G02F1/1335, G02F1/1337, G02F1/135, G02F1/136 take precedence)}
- G02F 1/133512: {Light shielding layers, e.g. black matrix (G02F1/136209 takes precedence)}
- G02F 1/133514: {Colour filters}
- G02F 1/1339: Gaskets; Spacers; Sealing of cells
- G02F 1/13458: {Terminal pads}
- G02F 1/1368: in which the switching element is a three-electrode device {(G02F1/136277 takes precedence)}
- H10D 86/411: {characterised by materials, geometry or structure of the substrates}
- H10D 86/441: {Interconnections, e.g. scanning lines}
- H10D 86/451: {characterised by the compositions or shapes of the interlayer dielectrics}
- H10D 86/60: wherein the TFTs are in active matrices
- H10K 59/131: Interconnections, e.g. wiring lines or terminals
- H10K 71/00: Manufacture or treatment specially adapted for the organic devices covered by this subclass
- G02F 2201/123: pixel
- H10K 59/8722: {Peripheral sealing arrangements, e.g. adhesives, sealants}
- H10W 72/01908: {using permanent auxiliary members, e.g. using alignment marks}
- H10W 72/01951: {Changing the shapes of bond pads}
- H10W 72/07254: {changes in dispositions}
- H10W 72/07255: {changes in materials}
- H10W 72/07354: {changes in dispositions}
- H10W 72/244: {relative to underlying supporting features, e.g. bond pads, RDLs or vias}
- H10W 72/251: {Materials}
- H10W 72/344: {relative to underlying supporting features, e.g. bond pads, RDLs or vias}
- H10W 72/856: {Bump connectors and die-attach connectors (bumps embedded in underfills H10W74/15)}
- H10W 72/934: {Cross-sectional shape, i.e. in side view}
- H10W 80/732: {having shape changed during the connecting}
- H10W 90/725: {between a chip and a laterally-adjacent insulating package substrate, interposer or RDL}
- H10W 90/735: {between a chip and a laterally-adjacent insulating package substrate, interposer or RDL}
- G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- H10D: INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10

## Abstract

Disclosed is a display device and a method of manufacturing the same, wherein an end portion of a pad provided on a first substrate is spaced apart and separated from an upper surface of the first substrate, and a connection electrode electrically connected with the pad is in contact with a lateral surface of the pad and a lower surface of the pad.

## Claims

### Claim 1

A display device comprising:
first and second substrates bonded to each other and forming a display panel;
a pad on the first substrate; and
a connection electrode electrically connected with the pad,
wherein an end portion of the pad is spaced apart and separated from an upper surface of the first substrate, with the connection electrode provided in a space between the end portion of the pad and an upper surface of the first substrate, such that the connection electrode is in contact with a lateral surface of the pad and a lower surface of the pad.

### Claim 2 (depends on 1)

The display device according to claim 1, wherein an end portion of the first substrate substantially corresponds to an end portion of the second substrate at a contact portion between the pad and the connection electrode.

### Claim 3 (depends on 1)

The display device according to claim 1, further comprising a flexible circuit film that is electrically connected with the connection electrode and is attached to a lateral surface of the first substrate and a lateral surface of the second substrate, wherein the connection electrode is in contact with the lateral surface of the first substrate and the lateral surface of the second substrate.

### Claim 4 (depends on 1)

The display device according to claim 1, further comprising a light-shielding layer on the second substrate, and an overcoat layer on the light-shielding layer, wherein the overcoat layer is disposed between the light-shielding layer and the connection electrode so as to insulate the light-shielding layer from the connection electrode.

### Claim 5 (depends on 1)

The display device according to claim 1, wherein the end portion of the pad is provided in a bent structure, and further comprising a stopper on the second substrate for controlling a bending degree of the end portion of the pad.

### Claim 6 (depends on 5)

The display device according to claim 5, wherein the stopper is overlapped with the end portion of the pad which is spaced apart and separated from the upper surface of the first substrate.

### Claim 7 (depends on 1)

The display device according to claim 1, further comprising an insulating layer on the pad, and an auxiliary electrode on the insulating layer and electrically connected with the pad, wherein the connection electrode is in contact with a lateral surface of the auxiliary electrode.

### Claim 8 (depends on 7)

The display device according to claim 7, wherein an end portion of the insulating layer is more distanced from the end portion of the first substrate in comparison to the end portion of the pad, and a lower surface of the auxiliary electrode is in contact with an upper surface of the end portion of the pad.

### Claim 9 (depends on 7)

The display device according to claim 7, wherein an end portion of the insulating layer is more distanced from the first substrate in comparison to the end portion of the pad, and the connection electrode is additionally in contact with the upper surface of the pad.

### Claim 10 (depends on 9)

The display device according to claim 9, wherein the connection electrode is additionally in contact with an upper surface of the auxiliary electrode.

### Claim 11 (depends on 1)

The display device according to claim 1, further comprising a conductive residue between the first substrate and the pad, wherein the connection electrode is additionally in contact with the conductive residue.

### Claim 12 (depends on 1)

The display device according to claim 1, wherein the first and second substrates are bonded to each other by a sealant, and an end portion of the sealant is more distanced from the end portion of the first substrate in comparison to the end portion of the pad.

### Claim 13 (depends on 1)

The display device according to claim 1, wherein the first and second substrates have substantially a same shape and a same size, and face each other with a signal line therebetween.

### Claim 14 (depends on 13)

The display device according to claim 13, wherein the pad is electrically connected with the signal line.