# US 2019/0357367 A1 · Display panel and display device including the same

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- Number: US 2019/0357367 A1
- Document ID: US20190357367A1
- Status: Published application
- Kind: A1
- Application number: 16/401,070
- Filed: 2019-05-01
- Published: 2019-11-21
- Earliest claimed: 2018-05-15
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.
- Inventors: Yun-mo CHUNG; Tak-young LEE; Joosun YOON
- Web page: https://patentgrep.com/patent/US20190357367A1

## CPC

- G02F 1/13458: {Terminal pads}
- H05K 1/111: {Pads for surface mounting, e.g. lay-out}
- H10K 59/131: Interconnections, e.g. wiring lines or terminals
- G02F 1/13456: {Cell terminals located on one side of the display only}
- H05K 2201/094: Array of pads or lands differing from one another, e.g. in size, pitch or thickness; Using different connections on the pads
- H05K 2201/09418: Special orientation of pads, lands or terminals of component, e.g. radial or polygonal orientation
- H10K 59/179: Interconnections, e.g. wiring lines or terminals
- H10K 2102/311: {Flexible OLED}
- H10W 72/5449: {not being orthogonal to a side surface of the chip, e.g. fan-out arrangements}
- 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
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10

## Abstract

A display panel includes: a display substrate having a display area, and a pad area disposed on at least one side of thereof; and a plurality of pad groups arranged on the pad area in a first direction and including: a first pad group having a plurality of first pads, at least some of the plurality of first pads have a first inclination with respect to a reference line extending in a second direction different from the first direction, and the plurality of first pads being spaced from each other at a first pitch; and a second pad group having a plurality of second pads, at least some of the plurality of second pads having a different second inclination with respect to the reference line, and the plurality of second pads being spaced from each other at a second pitch different from the first pitch.

## Claims

### Claim 1

A display panel comprising:
a display substrate having a display area to display an image, and a pad area disposed on at least one side of the display area; and
a plurality of pad groups arranged on the pad area in a first direction, the plurality of pad groups comprises:
a first pad group having a plurality of first pads, at least some of the plurality of first pads have a first inclination with respect to a reference line extending in a second direction different from the first direction, and the plurality of first pads being spaced from each other at a first pitch; and
a second pad group having a plurality of second pads, at least some of the plurality of second pads having a second inclination, which is different from the first inclination, with respect to the reference line, and the plurality of second pads being spaced from each other at a second pitch different from the first pitch.

### Claim 2 (depends on 1)

The display panel of claim 1, wherein the first pad group is disposed on a central portion of the pad area, and
the second pad group is disposed on at least one side of the first pad group.

### Claim 3 (depends on 2)

The display panel of claim 2, wherein the second inclination is greater than the first inclination, and
wherein the second pitch is less than the first pitch.

### Claim 4 (depends on 3)

The display panel of claim 3, wherein the second inclination is greater than 0 degrees and is equal to or less than about 50 degrees.

### Claim 5 (depends on 2)

The display panel of claim 2, wherein the second pad group comprises:
a plurality of first sub pad groups disposed on one side of the first pad group; and
a plurality of second sub pad groups disposed on the other side of the first pad group.

### Claim 6 (depends on 5)

The display panel of claim 5, wherein each of the first sub pad groups and the second sub pad groups comprises the second pads,
wherein the second inclinations of the second pads of the first sub pad groups are different from each other, and
wherein the second inclinations of the second pads of the second sub pad groups are different from each other.

### Claim 7 (depends on 6)

The display panel of claim 6, wherein the second inclinations of the second pads of the first sub pad groups increase in the first direction outwardly from the central portion toward the end of the pad area, and
wherein the second pitch between the second pads decreases in the first direction outwardly from the central portion toward the end of the pad area.

### Claim 8 (depends on 6)

The display panel of claim 6, wherein the second inclinations of the second pads of the second sub pad groups increase in the first direction outwardly from the central portion toward the end of the pad area, and
wherein the second pitch between the second pads decreases in the first direction outwardly from the central portion to the end of the pad area.

### Claim 9 (depends on 6)

The display panel of claim 6, wherein the second pads of an n-th first sub pad group from the first pad group in one direction and the second pads of an n-th second sub pad group from the first pad group in the other direction are disposed generally symmetrical to each other with respect to the first pad group, where the n is an integer equal to or greater than 1.

### Claim 10 (depends on 1)

The display panel of claim 1, wherein at least one of a first reference line and a second reference line defined by connecting respective ends of the first pads and the second pads is a curved line, and
wherein the first reference line is defined adjacent to the display area, and the second reference line is defined adjacent to an edge of the display substrate.

### Claim 11 (depends on 10)

The display panel of claim 10, wherein the first reference line is a curved line convex toward the display area, and
the second reference line is a straight line parallel to the edge of the display substrate.

### Claim 12 (depends on 10)

The display panel of claim 10, wherein the first reference line is a substantially straight line extending generally parallel to the edge of the display substrate, and
the second reference line is a curved line convex toward the edge of the display substrate.

### Claim 13 (depends on 1)

The display panel of claim 1, wherein at least some of the first pads and the second pads have a rectangular shape,
wherein the at least some of the first pads have a first length and a first width, and
wherein the at least some of the second pads have a second length greater than the first length and a second width less than the first width.

### Claim 14 (depends on 13)

The display panel of claim 13, wherein a first surface area of at least some of the first pads and a second surface area of at least some of the second pads are substantially the same.

### Claim 15

A display panel comprising:
a display substrate having a display area to display an image, and a pad area disposed on at least one side of the display area;
a plurality of pad groups arranged on the pad area in a first direction; and
a plurality of connection lines disposed between the display area and the pad area,
wherein the plurality of pad groups comprise:
a first pad group having a plurality of first pads, at least some of the plurality of first pads having a first inclination with respect to a reference line extending in a second direction different the first direction, and the plurality of first pads are spaced at a first pitch; and
a second pad group having a plurality of second pads, at least some of the plurality of second pads having a second inclination with respect to the reference line different from the first inclination, and the plurality of second pads being spaced at a second pitch between different from the first pitch.

### Claim 16 (depends on 15)

The display panel of claim 15, wherein the connection lines comprise:
a first connection line including:
a first sub line part extending from the display area toward the pad area; and
a second sub line part extending from the first sub line part and connected to the first pads; and
a second connection line including:
a third sub line part extending from the display area toward the pad area; and
a fourth sub line part extending from the third sub line part and connected to the second pads,
wherein the second sub line part has a third inclination with respect to the reference line, and the fourth sub line part has a fourth inclination with respect to the reference line different from the third inclination.

### Claim 17 (depends on 16)

The display panel of claim 16, wherein the first inclination and the third inclination are substantially the same, and the second inclination and the fourth inclination are substantially the same.

### Claim 18

A display device comprising:
a display panel having a display area and a pad area disposed on at least one side of the display area, the pad area including a plurality of pad groups arranged in a first direction; and
a connection circuit board including a plurality of connection pad groups coupleable to the pad groups,
wherein the pad groups comprise:
a first pad group having a plurality of first pads, at least some of the plurality of first pads having a first inclination with respect to a reference line extending in a second direction different the first direction, and spaced apart from each other at a first pitch; and
a second pad group having a plurality of second pads, at least some of the plurality of second pads having a second inclination with respect to the reference line different from the first inclination, and spaced apart from each other at a second pitch different from the first pitch,
wherein the connection pad groups comprise:
a first connection pad group having first connection pads coupleable to the first pads; and
a second connection pad group having second connection pads coupleable to the second pads.

### Claim 19 (depends on 18)

The display device according to claim 18, wherein the first pad group is disposed on a central portion of the pad area, and the second pad group is disposed on at least one side of the first pad group,
wherein the second inclination is greater than the first inclination, and
wherein the second pitch is less than the first pitch.

### Claim 20 (depends on 19)

The display device according to claim 19, wherein at least some of the first pads and the second pads has a rectangular shape, and
wherein the at least some of the first pads have a first length and a first width, and at least some of the second pads have a second length greater than the first length and a second width less than the first width.