# US 12,002,389 B2 · Display panel and display device

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- Number: US 12,002,389 B2
- Document ID: US12002389B2
- Status: Granted
- Kind: B2
- Application number: 17/267,016
- Filed: 2020-06-18
- Published: 2022-06-16
- Granted: 2024-06-04
- Earliest claimed: 2020-06-09
- Assignees: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
- Applicants: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
- Inventors: Wanli Dai; Zhen Tang; Yuxin Li
- Web page: https://patentgrep.com/patent/US12002389B2

## CPC

- G09F 9/301: {flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED}
- G09F 9/33: being semiconductor devices, e.g. diodes
- G09F 9/335: {being organic light emitting diodes [OLED]}
- G09F 9/35: being liquid crystals (G09F9/302 takes precedence; liquid crystal materials C09K19/00; {liquid crystal panels comprising a number of electrodes in a single cell per se G02F1/13})
- Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product
- G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

## Abstract

A display panel and a display device are provided. The display panel includes a flat display region and an edge display region that are connected to each other and can be relatively bent. The edge display region includes a first bending portion and a second bending portion that can be relatively bent, and the second bending portion is disposed at opposite ends of the first bending portion. The above design can realize a multi-sided display on a front, sides, and corners of the display panel, and is easy to assemble with other components of the display device and save manufacturing cost.

## Claims

### Claim 1

A display panel, comprising:
a flat display region and an edge display region, wherein the edge display region is disposed on at least one edge of the flat display region;
wherein the edge display region comprises a first bending portion and a second bending portion;
the first bending portion is directly connected to the at least one edge of the flat display region and is bendable relative to the flat display region;
the first bending portion comprises a first end connected to the flat display region, a second end and a third end adjacent to the first end, a fourth end opposite to the first end, and the second end is opposite to the third end; and
the second bending portion is connected to the second end and the third end of the first bending portion and is bendable relative to the first bending portion,
wherein the display panel comprises a light guide provided in a connection region of the two adjacent second bending portions of two adjacent edge display regions, a shape of the light guide corresponds to a shape of the connection region.

### Claim 2 (depends on 1)

The display panel as claimed in claim 1, wherein the edge display region is seamlessly connected to the flat display region, and a picture is displayed normally at a connection between the edge display region and the flat display region.

### Claim 3 (depends on 1)

The display panel as claimed in claim 1, wherein the second bending portion and the first bending portion are seamlessly connected, and a picture is normally displayed at a connection between the second bending portion and the first bending portion.

### Claim 4 (depends on 1)

The display panel as claimed in claim 1, wherein a bending angle of the first bending portion relative to the flat display region ranges from 0 degrees to 180 degrees.

### Claim 5 (depends on 1)

The display panel as claimed in claim 1, wherein a bending angle of the second bending portion relative to the first bending portion ranges from 0 degrees to 180 degrees.

### Claim 6 (depends on 1)

The display panel as claimed in claim 1, wherein the edge display region comprises a first edge display region, a second edge display region, a third edge display region, and a fourth edge display region, which are respectively disposed on four edges of the flat display region, the first edge display region is opposite to the third edge display region, and the second edge display region is opposite to the fourth edge display region.

### Claim 7 (depends on 6)

The display panel as claimed in claim 6, wherein the corners of the flat display region are curved corners.

### Claim 8 (depends on 7)

The display panel as claimed in claim 7, wherein a distance that the second bending portion extends from the first bending portion is a length of the second bending portion; and
a sum of the lengths of the two adjacent second bending portions of the two adjacent edge display regions is equal to a circumference of the curved corners of the flat display region.

### Claim 9 (depends on 8)

The display panel as claimed in claim 8, wherein the length of the second bending portion of the two adjacent edge display regions is equal or unequal.

### Claim 10 (depends on 8)

The display panel as claimed in claim 8, wherein a connection of the two adjacent second bending portions of the two adjacent edge display regions is a complementary tooth structure.

### Claim 11 (depends on 8)

The display panel as claimed in claim 8, wherein a connection of the two adjacent second bending portions of the two adjacent edge display regions is a complementary curved structure.

### Claim 12 (depends on 7)

The display panel as claimed in claim 7, wherein a distance that the second bending portion extends from the first bending portion is a length of the second bending portion; and
a sum of the lengths of the two adjacent second bending portions of the two adjacent edge display regions is less than a circumference of the curved corners of the flat display region.

### Claim 13

A display device, comprising:
a display panel and a support frame for supporting the display panel;
wherein the display panel comprises a flat display region and an edge display region, and the edge display region is disposed on at least one edge of the flat display region;
the edge display region comprises a first bending portion and a second bending portion;
the first bending portion is directly connected to the at least one edge of the flat display region, and is bendable relative to the flat display region;
the first bending portion comprises a first end connected to the flat display region, a second end and a third end adjacent to the first end, and a fourth end opposite to the first end, and the second end is opposite to the third end;
the second bending portion is connected to the second end and the third end of the first bending portion and is bendable relative to the first bending portion; and
the flat display region covers a front of the support frame, and the edge display region covers a side of the support frame,
wherein the display panel comprises a light guide provided in a connection region of the two adjacent second bending portions of two adjacent edge display regions, a shape of the light guide corresponds to a shape of the connection region.

### Claim 14 (depends on 13)

The display device as claimed in claim 13, wherein the edge display region comprises a first edge display region, a second edge display region, a third edge display region, and a fourth edge display region, which are respectively disposed on four edges of the flat display region, the first edge display region is opposite to the third edge display region, and the second edge display region is opposite to the fourth edge display region;
a distance that the second bending portion extends from the first bending portion is a length of the second bending portion; and
a sum of the lengths of the two adjacent second bending portions of the two adjacent edge display regions is equal to a circumference of curved corners of the flat display region.

### Claim 15 (depends on 13)

The display device as claimed in claim 13, wherein the light guide is used to provide a display function at a connection of the two intersecting second bending portions.

### Claim 16 (depends on 13)

The display device as claimed in claim 13, wherein a connection of the two adjacent second bending portions of the two adjacent edge display regions is a complementary tooth structure or a complementary curved structure.

### Claim 17 (depends on 13)

The display device as claimed in claim 13, wherein the edge display region comprises a first edge display region, a second edge display region, a third edge display region, and a fourth edge display region, which are respectively disposed on four edges of the flat display region, the first edge display region is opposite to the third edge display region, and the second edge display region is opposite to the fourth edge display region;
a distance that the second bending portion extends from the first bending portion is a length of the second bending portion; and
a sum of the lengths of the two adjacent second bending portions of the two adjacent edge display regions is less than a circumference of curved corners of the flat display region.

### Claim 18 (depends on 17)

The display device as claimed in claim 17, further comprising a functional component or a decorative component disposed between the two adjacent second bending portions of the two adjacent edge display regions.

### Claim 19

A display device, comprising:
a display panel and a support frame for supporting the display panel;
wherein the display panel comprises a flat display region and an edge display region, and the edge display region is disposed on at least one edge of the flat display region;
the edge display region comprises a first bending portion and a second bending portion, the first bending portion is directly connected to the at least one edge of the flat display region and is bendable relative to the flat display region;
the first bending portion comprises a first end connected to the flat display region, a second end and a third end adjacent to the first end, and a fourth end opposite to the first end, and the second end is opposite to the third end;
the second bending portion is connected to the second end and the third end of the first bending portion and is bendable relative to the first bending portion;
the flat display region covers a front of the support frame, and the edge display region covers a side of the support frame; and
a light guide is provided in a connection region of the two adjacent second bending portion, and the light guide is used to provide a display function at a connection of the two intersecting second bending portions, wherein the display panel comprises a light guide provided in a connection region of the two adjacent second bending portions of two adjacent edge display regions, a shape of the light guide corresponds to a shape of the connection region.