# US 10,312,466 B2 · Display panel, method for preparing the same and wearable device

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- Number: US 10,312,466 B2
- Document ID: US10312466B2
- Status: Granted
- Kind: B2
- Application number: 15/571,464
- Filed: 2017-06-08
- Published: 2019-05-02
- Granted: 2019-06-04
- Earliest claimed: 2016-08-15
- Assignees: Boe Technology Group Co., Ltd.; Hefei Xinsheng Optoelectronics Technology Co., Ltd.
- Applicants: Boe Technology Group Co., Ltd.; Hefei Xinsheng Optoelectronics Technology Co., Ltd.
- Inventors: Liangliang Jiang; Lei Guo; Yongjun Yoon
- Web page: https://patentgrep.com/patent/US10312466B2

## CPC

- G02F 1/134336: {Matrix}
- G02F 1/133: Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements (arrangements or circuits for control of liquid crystal elements in a matrix, not structurally associated with these elements G09G3/36)
- H10K 59/87: {Passivation; Containers; Encapsulations}
- H10K 59/873: {Encapsulations}
- G02F 1/133311: {Environmental protection, e.g. against dust or humidity}
- H10K 59/131: Interconnections, e.g. wiring lines or terminals
- H10K 77/111: {Flexible substrates}
- H10K 2102/311: {Flexible OLED}
- 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
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## Abstract

The disclosure provides a display panel, a method for preparing the same and a wearable device. The display panel comprises a display panel body, wherein the display panel body has at least one through-hole, and the through-hole is filled with a hydrophobic gas-permeable material.

## Claims

### Claim 1

A display panel comprising a display panel body, wherein the display panel body has at least one through-hole, and the through-hole is filled with a hydrophobic gas-permeable material.

### Claim 2 (depends on 1)

The display panel as claimed in claim 1, wherein the display panel body has a display area and a peripheral area surrounding the display area, and
the through-hole is located in the display area.

### Claim 3 (depends on 2)

The display panel as claimed in claim 2, wherein the display area of the display panel body has a substrate and a pixel unit located on the substrate, the through-hole is located within an area where the pixel unit is located, and the through-hole runs through the substrate and the pixel unit.

### Claim 4 (depends on 3)

The display panel as claimed in claim 3, wherein the orthographic projection area of the through-hole on the substrate is less than ⅕ of the orthographic projection area of the pixel unit on the substrate.

### Claim 5 (depends on 3)

The display panel as claimed in claim 3, wherein there are a plurality of through-holes arranged within the area where one said pixel unit is located, and the plurality of said through-holes are uniformly arranged within the area where the pixel unit is located.

### Claim 6 (depends on 2)

The display panel as claimed in claim 2, wherein there are a plurality of through-holes arranged within the display area, and the plurality of said through-holes are uniformly arranged within the display area.

### Claim 7 (depends on 1)

The display panel as claimed in claim 1, wherein the hydrophobic gas-permeable material is a polymer with multiple micropores.

### Claim 8 (depends on 7)

The display panel as claimed in claim 7, wherein the pore size of the micropore is 0.1 μm-50 μm.

### Claim 9 (depends on 7)

The display panel as claimed in claim 7, wherein the polymer is polyvinylidene fluoride, polyurethane or polytetrafluoroethylene.

### Claim 10 (depends on 9)

The display panel as claimed in claim 9, wherein the polyvinylidene fluoride is produced by the electrospinning technology in a mixed solution in which the volume ratio of dimethylformamide to acetone is 6:4, such that the mass concentration of the produced polyvinylidene fluoride is 12%.

### Claim 11 (depends on 1)

The display panel as claimed in claim 1, wherein the inner wall of the through-hole is further arranged with a layer of encapsulation film.

### Claim 12 (depends on 1)

A wearable device comprising a display assembly, wherein the display assembly employs a display panel as claimed in any of claim 1.

### Claim 13

A method for preparing a display panel, comprising the following steps of:
preparing and forming a display panel body,
forming through-holes running through the display panel body, and
filling a hydrophobic gas-permeable material into the individual through-holes and curing it.

### Claim 14 (depends on 13)

The method for preparing a display panel as claimed in claim 13, wherein the display panel body has a display area and a peripheral area surrounding the display area, and the through-hole is formed in the display area.

### Claim 15 (depends on 14)

The method for preparing a display panel as claimed in claim 14, wherein the preparing and forming a display panel body further comprises:
the display area of the display panel body comprising a substrate and a pixel unit located on the substrate, forming the through-hole within an area where the pixel unit is located, which runs through the substrate and the pixel unit.

### Claim 16 (depends on 15)

The method for preparing a display panel as claimed in claim 15, wherein the orthographic projection area of the through-hole on the substrate is less than ⅕ of the orthographic projection area of the pixel unit on the substrate.

### Claim 17 (depends on 15)

The method for preparing a display panel as claimed in claim 15, wherein there are a plurality of through-holes arranged within the area where one said pixel unit is located, and the plurality of said through-holes are uniformly arranged within the area where the pixel unit is located.

### Claim 18 (depends on 13)

The method for preparing a display panel as claimed in claim 13, wherein a polymer with multiple micropores is used as the hydrophobic gas-permeable material.

### Claim 19 (depends on 18)

The method for preparing a display panel as claimed in claim 18, wherein the pore size of the micropore of the polymer is 0.1 μm-50 μm.

### Claim 20 (depends on 13)

The method for preparing a display panel as claimed in claim 13, further comprising: arranging a layer of encapsulation film on the inner wall of the through-hole.