# US 10,371,989 B2 · Display panel and display device

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- Number: US 10,371,989 B2
- Document ID: US10371989B2
- Status: Granted
- Kind: B2
- Application number: 15/593,505
- Filed: 2017-05-12
- Published: 2017-08-31
- Granted: 2019-08-06
- Earliest claimed: 2016-12-27
- Assignees: Xiamen Tianma Micro-Electronics Co., Ltd.; Tianma Micro-Electronics Co., Ltd.
- Applicants: Xiamen Tianma Micro-Electronics Co., Ltd.; Tianma Micro-Electronics Co., Ltd.
- Inventors: Ankai Ling; Ling Wu; Poping Shen
- Web page: https://patentgrep.com/patent/US10371989B2

## CPC

- G02F 1/13394: {spacers regularly patterned on the cell subtrate, e.g. walls, pillars (G02F1/133377 takes precedence)}
- G02F 1/133514: {Colour filters}
- G02F 1/13396: {Spacers having different sizes}
- G02F 1/13398: {Spacer materials; Spacer properties}
- 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

## Abstract

The present disclosure provides a display panel and a display device. The display panel includes a first substrate, a second substrate located opposite to the first substrate, and a plurality of first photo spacers located between the first substrate and the second substrate. At least three of the first photo spacers define a repeating unit. The repeating unit comprises a first repeating unit arranged in a first shape, and the first shape comprises a regular polygon or a circle. The display may improve the pressure resistance of the display panel and prevent the mura effect of the display panel.

## Claims

### Claim 1

A display panel, comprising:
a first substrate;
a second substrate located opposite to the first substrate; and
a plurality of photo spacers located between the first substrate and the second substrate, wherein:
the plurality of photo spacers defines a plurality of repeating unit groups, and each repeating unit group includes:
a first plurality of the photo spacers connected to form a boundary of a first shape for a first repeating unit, the first shape being a regular polygon or a circle, and
a second plurality of the photo spacers connected to form a boundary of a second shape for a second repeating unit,
the first repeating unit and the second repeating unit each includes at least three of the plurality of photo spacers,
all photo spacers are excluded from being located within the first shape of the first repeating unit and within the second shape of the second repeating unit, and
the second repeating unit covers a central region of the first repeating unit.

### Claim 2 (depends on 1)

The display panel according to claim 1, wherein the second shape is a regular polygon.

### Claim 3 (depends on 1)

The display panel according to claim 1, wherein the second repeating unit is located in the first repeating unit and at the central region of the first repeating unit.

### Claim 4 (depends on 1)

The display panel according to claim 1, wherein a center of the first repeating unit coincides with a center of the second repeating unit.

### Claim 5 (depends on 1)

The display panel according to claim 1, wherein the second repeating unit is inscribed in the first repeating unit.

### Claim 6 (depends on 1)

The display panel according to claim 1, wherein the second repeating unit is located outside the first repeating unit, and the first repeating unit connects to at least one point of the second repeating unit.

### Claim 7 (depends on 1)

The display panel according to claim 1, wherein a radius of the first repeating unit ranges from approximately 30 μm to 70 μm.

### Claim 8 (depends on 1)

The display panel according to claim 1, wherein the first repeating unit approximately covers 60-2100 sub-pixels, and the second repeating unit covers less than the number of sub-pixels covered by the first repeating unit.

### Claim 9 (depends on 1)

The display panel according to claim 1, wherein a cross section of the photo spacer is an oval or a rectangle.

### Claim 10 (depends on 1)

The display panel according to claim 1, wherein the first substrate is an array substrate, and the photo spacer is located on the array substrate.

### Claim 11 (depends on 1)

The display panel according to claim 1, wherein the second substrate is a color film substrate, and the photo spacer is located on the color film substrate.

### Claim 12 (depends on 1)

The display panel according to claim 1, wherein:
the plurality of photo spacers located between the first substrate and the second substrate is a plurality of first photo spacers, and
the display panel further includes a plurality of second photo spacers, wherein the second photo spacers are located between the first substrate and the second substrate, and a height of the second photo spacers is lower than a height of the first photo spacers.

### Claim 13 (depends on 12)

The display panel according to claim 12, wherein the repeating unit comprises at least one second photo spacer.

### Claim 14 (depends on 1)

The display panel according to claim 1, wherein:
the second shape is a circle.

### Claim 15 (depends on 1)

The display panel according to claim 1, wherein a cross section of the photo spacer is a rectangle.

### Claim 16

A display device, comprising:
a display panel, the display panel comprising:
a first substrate;
a second substrate located opposite to the first substrate; and
a plurality of photo spacers located between the first substrate and the second substrate, wherein:
the plurality of photo spacers defines a plurality of repeating units groups, and each repeating unit group includes:
a first plurality of the photo spacers connected to form a boundary of a first shape for a first repeating unit, and the first shape being a regular polygon or a circle, and
a second plurality of the photo spacers connected to form a boundary of a second shape for a second repeating unit,
the first repeating unit and the second repeating unit each includes at least three of the plurality of photo spacers,
all photo spacers are excluded from being located within the first shape of the first repeating unit and within the second shape of the second repeating unit, and
the second repeating unit covers a central region of the first repeating unit.

### Claim 17 (depends on 16)

The display device according to claim 16, wherein the second shape is a regular polygon.