# US 11,111,175 B2 · Hydrophobic window, house and vehicle using the same

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- Number: US 11,111,175 B2
- Document ID: US11111175B2
- Status: Granted
- Kind: B2
- Application number: 16/221,973
- Filed: 2018-12-17
- Published: 2019-07-11
- Granted: 2021-09-07
- Earliest claimed: 2017-12-26
- Assignees: Tsinghua University; Hon Hai Precision Industry Co., Ltd.
- Applicants: Tsinghua University; Hon Hai Precision Industry Co., Ltd.
- Inventors: Yuan-Hao Jin; Qun-Qing Li; Shou-Shan Fan
- Web page: https://patentgrep.com/patent/US11111175B2

## CPC

- C03C 17/007: {containing a dispersed phase, e.g. particles, fibres or flakes, in a continuous phase}
- B32B 17/10036: {comprising two outer glass sheets}
- C03C 17/30: with silicon-containing compounds
- B32B 2255/24: Organic non-macromolecular coating
- B32B 2605/006: Transparent parts other than made from inorganic glass, e.g. polycarbonate glazings
- C03C 2217/76: Hydrophobic and oleophobic coatings
- C03C 2217/77: Coatings having a rough surface
- C03C: CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM

## Abstract

The disclosure relates to a hydrophobic window. The hydrophobic window includes a frame; a glass embedded in the frame; and a hydrophobic film on a surface of the glass. The hydrophobic film comprises a flexible substrate and a hydrophobic layer. The flexible substrate comprises a flexible base and a patterned first bulge layer on a surface of the flexible base. The hydrophobic layer is on the surface of the patterned first bulge layer.

## Claims

### Claim 1

A hydrophobic window, the hydrophobic window comprising:
a window frame;
a glass embedded in the window frame; and
a hydrophobic film on a surface of the glass, wherein the hydrophobic film comprises:
a flexible substrate, wherein the flexible substrate comprises a flexible base and a patterned first bulge layer on a surface of the flexible base; wherein the patterned first bulge layer comprises a plurality of strip-shaped bulges intersected with each other to form a net shaped structure and a plurality of first holes are formed between the plurality of strip-shaped bulges, and each of the plurality of strip-shaped bulges has a height in a range from about 75 nanometers to about 800 nanometers; and
a hydrophobic layer on a surface of the patterned first bulge layer opposite to the flexible base.

### Claim 2 (depends on 1)

The hydrophobic window of claim 1, wherein the plurality of strip-shaped bulges comprises a plurality of first strip-shaped bulges and a plurality of second strip-shaped bulges, the plurality of first strip-shaped bulges are substantially parallel with each other and extend along a first direction, and the plurality of second strip-shaped bulges are substantially parallel with each other and extend along a second direction different from the first direction.

### Claim 3 (depends on 2)

The hydrophobic window of claim 2, wherein an angle between the first direction and the second direction is greater than 30 degrees and less than or equal to 90 degrees.

### Claim 4 (depends on 1)

The hydrophobic window of claim 1, wherein each of the plurality of strip-shaped bulges has a width in a range from about 25 nanometers to about 600 nanometers, and a distance between adjacent two of the plurality of strip-shaped bulges ranges from about 15 nanometers to about 800 nanometers.

### Claim 5 (depends on 1)

The hydrophobic window of claim 1, wherein the hydrophobic film further comprises a carbon nanotube structure between the flexible substrate and the hydrophobic layer, and the carbon nanotube structure is arranged on bottom surfaces of the first holes.

### Claim 6 (depends on 1)

The hydrophobic window of claim 1, wherein the hydrophobic film further comprises a carbon nanotube structure between the flexible substrate and the hydrophobic layer, and the carbon nanotube structure is arranged on top surfaces and side surfaces of the patterned first bulge layer.

### Claim 7 (depends on 1)

The hydrophobic film of claim 1, wherein the first patterned bulge comprises a plurality of bumps spaced apart from each other to form a two-dimensional array and a plurality of first grooves defined between the plurality of bumps.

### Claim 8 (depends on 7)

The hydrophobic window of claim 7, wherein the hydrophobic film further comprises a carbon nanotube structure between the flexible substrate and the hydrophobic layer, and the carbon nanotube structure is arranged on bottom surfaces of the first grooves.

### Claim 9 (depends on 1)

The hydrophobic window of claim 1, wherein the flexible base and the patterned first bulge layer are an integrated structure, and a material of the flexible base and the patterned first bulge layer is an insulating material or a semiconductor material.

### Claim 10 (depends on 1)

The hydrophobic window of claim 1, wherein the hydrophobic film further comprises an adhesive layer between the flexible substrate and the glass.

### Claim 11 (depends on 1)

The hydrophobic window of claim 1, wherein the hydrophobic film further comprises:
a heating layer on a surface of the flexible substrate away from the hydrophobic layer;
a first electrode and a second electrode spaced apart from the first electrode, wherein the first electrode and the second electrode are electrically connected to and in direct contact with the heating layer, and
the hydrophobic window comprises a third electrode and a fourth electrode on the glass and spaced apart from each other, wherein the first electrode is electrically connected to and in direct contact with the third electrode, and the second electrode is electrically connected to and in direct contact with the fourth electrode.

### Claim 12 (depends on 11)

The hydrophobic window of claim 11, wherein the heating layer comprises an indium tin oxide layer or a carbon nanotube layer.

### Claim 13 (depends on 1)

The hydrophobic window of claim 1, wherein the hydrophobic film further comprises:
a first electrode and a second electrode spaced apart from the first electrode, wherein the flexible substrate is electrically and thermally conductive, and the first electrode and the second electrode are electrically connected to and in direct contact with the flexible substrate, and
the hydrophobic window further comprises a third electrode and a fourth electrode on the glass and spaced apart from each other, wherein the first electrode is electrically connected to and in direct contact with the third electrode, and the second electrode is electrically connected to and in direct contact with the fourth electrode.

### Claim 14 (depends on 13)

The hydrophobic window of claim 13, wherein the flexible substrate comprises a polymer matrix and a carbon nanotube structure dispersed therein.

### Claim 15

A house comprising: a house body, and a hydrophobic window, wherein the hydrophobic window comprises:
a window frame;
a glass embedded in the window frame; and
a hydrophobic film on a surface of the glass, wherein the hydrophobic film comprises:
a flexible substrate, wherein the flexible substrate comprises a flexible base and a patterned first bulge layer on a surface of the flexible base; wherein the patterned first bulge layer comprises a plurality of strip-shaped bulges intersected with each other to form a net shaped structure and a plurality of first holes are formed between the plurality of strip-shaped bulges, and each of the plurality of strip-shaped bulges has a height in a range from about 75 nanometers to about 800 nanometers; and
a hydrophobic layer on a surface of the patterned first bulge layer opposite to the flexible base.

### Claim 16 (depends on 15)

The house of claim 15, wherein the hydrophobic film further comprises:
a heating layer on the surface of the flexible substrate away from the hydrophobic layer;
a first electrode and a second electrode spaced apart from the first electrode, wherein the first electrode and the second electrode are electrically connected to and in direct contact with the heating layer, and
the hydrophobic window comprises a third electrode and a fourth electrode spaced apart from each other and located on the glass, wherein the first electrode is electrically connected to and in direct contact with the third electrode, and the second electrode is electrically connected to and in direct contact with the fourth electrode.

### Claim 17

A vehicle comprising: a vehicle body, and a hydrophobic window set in the vehicle body, wherein the hydrophobic window comprises:
a window frame;
a glass embedded in the window frame; and
a hydrophobic film on a surface of the glass, wherein the hydrophobic film comprises:
a flexible substrate, wherein the flexible substrate comprises a flexible base and a patterned first bulge layer on a surface of the flexible base; wherein the patterned first bulge layer comprises a plurality of strip-shaped bulges intersected with each other to form a net shaped structure and a plurality of first holes are formed between the plurality of strip-shaped bulges, and each of the plurality of strip-shaped bulges has a height in a range from about 75 nanometers to about 800 nanometers; and
a hydrophobic layer on a surface of the patterned first bulge layer opposite to the flexible base.

### Claim 18 (depends on 17)

The vehicle of claim 17, wherein the hydrophobic film further comprises:
a heating layer on the surface of the flexible substrate away from the hydrophobic layer;
a first electrode and a second electrode spaced apart from the first electrode, wherein the first electrode and the second electrode are electrically connected to and in direct contact with the heating layer, and
the hydrophobic window further comprises a third electrode and a fourth electrode on the glass and spaced apart from each other, wherein the first electrode is electrically connected to and in direct contact with the third electrode, and the second electrode is electrically connected to and in direct contact with the fourth electrode.

### Claim 19 (depends on 17)

The vehicle of claim 17, wherein the hydrophobic film further comprises:
a first electrode and a second electrode spaced apart from the first electrode, wherein the flexible substrate is electrically and thermally conductive, and the first electrode and the second electrode are electrically connected to and in direct contact with the flexible substrate, and
the hydrophobic window further comprises a third electrode and a fourth electrode on the glass and spaced apart from each other, wherein the first electrode is electrically connected to and in direct contact with the third electrode, and the second electrode is electrically connected to and in direct contact with the fourth electrode.