# US 12,182,367 B2 · Touch sensing device and display device including the same

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- Number: US 12,182,367 B2
- Document ID: US12182367B2
- Status: Granted
- Kind: B2
- Application number: 16/708,410
- Filed: 2019-12-09
- Published: 2020-09-24
- Granted: 2024-12-31
- Earliest claimed: 2019-03-22
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.
- Inventors: Byeong Kyu Jeon; Jeong Heon Lee; Chang Bum Kim; Jung Mok Park; Hee Woong Park; Sang Wook Yoo; Young Seok Yoo; Choon Hyop Lee
- Web page: https://patentgrep.com/patent/US12182367B2

## CPC

- G06F 3/044: by capacitive means
- G06F 3/0443: {using a single layer of sensing electrodes}
- G06F 1/1626: {with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]}
- G06F 1/1643: {the display being associated to a digitizer, e.g. laptops that can be used as penpads (details related to the relative motion of the display enclosure with respect to the body enclosure, e.g. to move between laptop and tablet PC configuration G06F1/1615)}
- G06F 1/1656: {Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories (mounting of accessories to a computer display G06F1/1607; display hoods G06F1/1603; cooling arrangements for portable computers G06F1/203)}
- G06F 3/0412: {Digitisers structurally integrated in a display}
- H05K 1/0281: {Reinforcement details thereof}
- H05K 1/147: {at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit (H05K1/148 takes precedence)}
- H10K 59/131: Interconnections, e.g. wiring lines or terminals
- H10K 59/40: OLEDs integrated with touch screens
- G06F 2203/04112: Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## Abstract

A touch sensing device includes a base layer, a touch electrode layer, a first reinforcing member, and a touch circuit board. The base layer includes a main area and a protruding area protruding from the main area in a first direction. The touch electrode layer is disposed on a surface of the base layer. The first reinforcing member is disposed on a surface of the protruding area. The touch circuit board is electrically connected to the touch electrode layer. The protruding area includes a bending area and a pad area. The bending area is bent downward. The pad area extends from the bending area in the first direction and overlaps the base layer in a second direction intersecting the first direction in a bent state of the bending area. The touch circuit board is attached to the pad area.

## Claims

### Claim 1

A touch sensing device comprising:
a base layer comprising a main area and a protruding area protruding from the main area in a first direction;
a touch electrode layer disposed on a surface of the base layer;
a first reinforcing member disposed on a surface of the protruding area;
a second reinforcing member disposed on another surface of the protruding area, the another surface opposing the surface; and
a touch circuit board electrically connected to the touch electrode layer,
wherein the protruding area comprises:
a bending area bent downward; and
a pad area extending from the bending area in the first direction and overlapping the base layer in a second direction intersecting the first direction in a bent state of the bending area,
wherein the touch circuit board is attached to the pad area,
wherein, in a plan view of an unbent state of the protruding area, one end of the second reinforcing member directly contacts the main area and the second reinforcing member does not overlap the main area in the second direction,
wherein the second reinforcing member directly contacts the another surface of the protruding area of the base layer,
wherein the first reinforcing member and the second reinforcing member each respectively entirely cover the bending area,
wherein the first reinforcing member also covers a portion of the pad area, and
wherein the second reinforcing member does not cover any portion of the pad area.

### Claim 2 (depends on 1)

The touch sensing device of claim 1, wherein the first reinforcing member is disposed in the bending area and the pad area, and covers a part of the touch circuit board.

### Claim 3 (depends on 2)

The touch sensing device of claim 2, wherein, in the protruding area, the touch electrode layer is disposed between the first reinforcing member and the base layer.

### Claim 4 (depends on 3)

The touch sensing device of claim 3, wherein the second reinforcing member is disposed in the bending area.

### Claim 5 (depends on 4)

The touch sensing device of claim 4, wherein a modulus of the first reinforcing member is greater than a modulus of the second reinforcing member.

### Claim 6 (depends on 1)

The touch sensing device of claim 1, wherein the first reinforcing member and the second reinforcing member are alternately arranged in the first direction.

### Claim 7 (depends on 6)

The touch sensing device of claim 6, wherein the first reinforcing member and the second reinforcing member partially overlap each other in a thickness direction.

### Claim 8 (depends on 7)

The touch sensing device of claim 7, wherein each of the first reinforcing member and the second reinforcing member is shaped like a curved bar.

### Claim 9 (depends on 1)

The touch sensing device of claim 1, wherein the first reinforcing member comprises a plurality of circular bodies disposed on the surface of the protruding area.

### Claim 10 (depends on 9)

The touch sensing device of claim 9, wherein:
the second reinforcing member comprises a plurality of circular bodies; and
the second reinforcing member partially overlaps the first reinforcing member in the thickness direction.

### Claim 11

A touch sensing device comprising:
a base layer comprising a main area and a protruding area protruding from the main area in a first direction;
a touch electrode layer disposed on a surface of the base layer;
a first reinforcing member disposed on a surface of the protruding area;
a second reinforcing member disposed on another surface of the protruding area, the another surface opposing the surface; and
a touch circuit board electrically connected to the touch electrode layer,
wherein the protruding area comprises:
a bending area bent downward; and
a pad area extending from the bending area in the first direction and overlapping the base layer in a second direction intersecting the first direction in a bent state of the bending area,
wherein the touch circuit board is attached to the pad area,
wherein, in a plan view of an unbent state of the protruding area, the second reinforcing member is spaced apart from the touch electrode layer,
wherein the second reinforcing member directly contacts the another surface of the protruding area of the base layer, and
wherein:
the second reinforcing member comprises a (2a)-th reinforcing member and a (2b)-th reinforcing member that are spaced a part from each other on the another surface of the protruding area;
the (2a)-th reinforcing member does not overlap the main area in the second direction;
the bending area comprises a first area adjacent to the main area, a second area adjacent to the pad area, and a third area disposed between the first area and the second area;
the first reinforcing member is disposed in the third area, the (2a)-th reinforcing member is disposed adjacent to a boundary between the first area and the third area, and the (2b)-th reinforcing member is disposed adjacent to a boundary between the second area and the third area,
the first reinforcing member comprises a (1a)-th reinforcing member and a (1b)-th reinforcing member spaced a part from the (1a)-th reinforcing member on the surface of the protruding area that is opposite to the another surface of the protruding area,
the second reinforcing member does not cover any portion of the pad area, and
the (2a)-th reinforcing member overlaps a part of the (1a)-th reinforcing member, a part of the (1b)-th reinforcing member, and a first spacing area located between the (1a)-th reinforcing member and the (1b)-th reinforcing member, and
in a bent state, the (2a)-th reinforcing member remains spaced apart from the (2b)-th reinforcing member.

### Claim 12

A display device comprising:
a display panel comprising a first main area and a first protruding area protruding from the first main area in a first direction; and
a touch sensing device disposed on the display panel, the touch sensing device comprising a second main area overlapping the first main area and a second protruding area overlapping the first protruding area,
wherein the first protruding area comprises:
a first bending area bent downward from the display panel; and
a first pad area extending from the first bending area in the first direction and overlapping the display panel in a second direction intersecting the first direction in a bent state of the first bending area,
wherein the second protruding area comprises:
a second bending area bent outside the first protruding area; and
a second pad area extending from the second bending area in the first direction and overlapping the display panel in the second direction in a bent state of the second bending area, and
wherein:
a first reinforcing member is disposed on a surface of the second protruding area;
a second reinforcing member is disposed on another surface of the second protruding area, the another surface opposing the surface;
in a plan view of an unbent state of the second protruding area, one end of the second reinforcing member directly contacts the second main area and the second reinforcing member does not overlap the second main area in the second direction;
the second reinforcing member directly contacts the another surface of the second protruding area;
the first bending area of the first protruding area and the second bending area of the second protruding area are spaced apart from each other;
the first reinforcing member and the second reinforcing member each respectively entirely cover the second bending area;
the first reinforcing member covers a portion of the second pad area; and
the second reinforcing member does not cover any portion of the second pad area.

### Claim 13 (depends on 12)

The display device of claim 12, wherein the first reinforcing member is disposed in the second bending area and the second pad area.

### Claim 14 (depends on 13)

The display device of claim 13, further comprising:
a touch circuit board electrically connected to the touch sensing device,
wherein an end of the touch circuit board is disposed between the first reinforcing member and the second pad area.

### Claim 15 (depends on 14)

The display device of claim 14, further comprising:
a display circuit board electrically connected to the display panel, disposed between the display panel and the touch circuit board, and comprising a connector,
wherein another end of the touch circuit board is connected to the connector.

### Claim 16 (depends on 14)

The display device of claim 14, wherein the second reinforcing member is disposed in the second bending area.

### Claim 17 (depends on 16)

The display device of claim 16, wherein a modulus of the first reinforcing member is greater than a modulus of the second reinforcing member.

### Claim 18 (depends on 12)

The display device of claim 12, wherein the first reinforcing member and the second reinforcing member are alternately arranged in the first direction.

### Claim 19 (depends on 18)

The display device of claim 18, wherein the first reinforcing member and the second reinforcing member partially overlap each other in a thickness direction.