WO2020015631A1

WO2020015631A1 - Texture protective film, terminal and manufacture method of texture protective film

Info

Publication number: WO2020015631A1
Application number: PCT/CN2019/096144
Authority: WO
Inventors: 王慧娥; 李孟; 李东亮
Original assignee: 华为技术有限公司
Priority date: 2018-07-20
Filing date: 2019-07-16
Publication date: 2020-01-23
Also published as: CN110733222A

Abstract

Disclosed are a texture protection film, a terminal and a manufacture method of a texture protective film, relating to the technical field of communication terminal products. The texture protective film comprises a protective film body, a first surface of the protective film body is provided with a first texture layer, a second surface of the protective film body is provided with a second texture layer, the first surface is opposite to the second surface, and the first texture layer and the second texture layer are superposed to form an interference texture pattern.

Description

Texture protection film, terminal and manufacturing method of texture protection film

This application claims the priority of a Chinese patent application filed on July 20, 2018 with the State Intellectual Property Office of China, with an application number of 201810809069.7, and an application name of "A Texture Protective Film, Terminal, and Method for Making Texture Protective Film" The entire contents are incorporated herein by reference.

Technical field

The present application relates to the technical field of communication terminal products, and in particular, to a texture protection film, a terminal, and a method for manufacturing a texture protection film.

Background technique

At present, the main body materials of the appearance of communication terminal products such as mobile phones have been comprehensively moved to glass materials. The new processing methods of glass materials have a great impact on the appearance effect, which is crucial to the competitiveness and differentiation of products. With the use of more and more glass materials, each terminal manufacturer is seeking breakthroughs in glass material technology. The process technology on glass ranges from silk screen printing and spray coating to glass coating and film transfer (Glass direct molding, GDM). ), And then to polyethylene terephthalate (PET) film texture, etc., have been seriously homogenized.

At present, when producing a PET protective film, in order to obtain various visual effects, a scheme is adopted in which a texture layer is printed on one side of PET. This scheme can obtain various visual effects by changing the pattern of the texture layer. However, the pattern seen is a flat stationary pattern, lacking the sense of layering and depth, and the decorative effect is poor.

Summary of the invention

The texture protection film, the mobile phone, and the method for manufacturing the texture protection film provided in the embodiments of the present application can increase the sense of layering, depth, transparency, and decoration of glass material products, and improve the competitiveness and attractiveness of the products.

To achieve the above purpose, the embodiments of the present application adopt the following technical solutions:

In a first aspect, the present application provides a texture protection film including a protection film body, a first surface of the protection film body is provided with a first texture layer, and a second surface of the protection film body is provided with a second texture layer. The first surface is opposite to the second surface, and the first texture layer and the second texture layer are superimposed to form an interference texture pattern.

In the texture protection film provided in the embodiment of the present application, a first texture layer and a second texture layer are respectively provided on two opposite first and second surfaces of the protection film body, and the first texture layer and the second texture layer are provided. The interference texture pattern can be superimposed, so that compared to a single layer texture pattern, the texture pattern formed by the interference of two layers of texture will produce a more three-dimensional, richer, and more fluid texture glare effect, which can increase the glass material The layering, depth, transparency and decorative effect of the product enhance the competitiveness and attractiveness of the product.

In a possible implementation manner, the pattern of the first texture layer is the same as the pattern of the second texture layer, the pattern of the second texture layer is deflected at a certain angle relative to the pattern of the first texture layer, and the first texture layer Overlay interference with the second texture layer to form a moiré pattern. Moiré can increase the sense of layering, depth, transparency and decoration of glass products.

In a possible implementation manner, the first texture layer includes a plurality of first linear stripes arranged in parallel and spaced from each other, and the second texture layer includes a plurality of second linear stripes arranged in parallel and spaced to each other, the The projection of the first straight stripe on the second surface forms an included angle with the second straight stripe that is greater than 0 degrees.

In a possible implementation manner, the thickness of the first straight stripe in a direction perpendicular to the first surface is 2-20um, and the thickness of the second straight stripe in a direction perpendicular to the second surface is 2-20um.

In a possible implementation manner, a width of the first straight stripe in a direction parallel to the first surface is 20-200um, and a width of the second straight stripe in a direction parallel to the second surface is 20-200um.

In a possible implementation manner, a distance between the two adjacent first linear stripes is 20-250um, and a distance between the two adjacent second linear stripes is 20-250um. Hundreds of patterns can be changed within the above parameter range, with a variety of unexpected appearance effects. Selecting the above parameter range can improve the product's process effect and appearance quality.

In a possible implementation manner, an outer surface of the first straight stripe is an arc surface.

In a possible implementation manner, the protective film body is a PET film. PET film has excellent physical properties, chemical properties and dimensional stability, transparency and recyclability.

In a possible implementation manner, the first texture layer and the second texture layer are both formed by embossing with a shadowless glue.

In a possible implementation manner, a first optical film is provided on a side of the first texture layer remote from the first surface, and a second optical film is provided on a side of the second texture layer remote from the second surface. The first optical film and the second optical film are used to increase light transmittance, increase brightness, and / or form color. Thereby, the decorative effect of a texture protective film can be improved.

In a second aspect, the present application provides a terminal, which includes a glass cover, and the inner surface of the glass cover is pasted with the texture protection film described in any one of the implementations of the first aspect.

In the terminal provided in the embodiment of the present application, a texture protection film is attached to an inner surface of the glass cover plate, and a first texture layer and a second texture are respectively provided on two opposite first and second surfaces of the protection film body. Layer, the first texture layer and the second texture layer can be superimposed to form an interference texture pattern. Therefore, compared to the single-layer texture pattern, the texture pattern formed by the interference of two layers of texture will produce a more three-dimensional, richer, and more fluid texture glare light and shadow effect, which can increase the sense of layering and depth of glass products. , Transparency and decorative effects, enhance the competitiveness and attractiveness of end products.

In a possible implementation manner of the second aspect, the terminal includes a middle frame main casing, a display module is disposed in the middle frame main casing, and a front glass cover is provided on a front light emitting side of the middle frame main casing. A back glass cover is provided on the back of the middle frame main casing, and the front surface glass cover and / or the inner surface of the back glass cover is attached with the texture protection film.

In a third aspect, the present application provides a method for manufacturing a texture protective film, including the following steps:

Fabricating a first texture layer on a first surface of the protective film body;

A second texture layer is made on a second surface of the protective film body opposite to the first surface, and the second texture layer and the first texture layer can be superposed to form an interference texture pattern.

The method for manufacturing a texture protection film provided in the embodiment of the present application can produce a texture protection film with a double-sided texture pattern. Compared with a single-sided texture pattern, a texture pattern formed by interference of two layers of texture will produce a more three-dimensional and rich 2. The more fluid texture glare light and shadow effect can increase the sense of layer, depth, transparency and decoration of glass products, and improve the competitiveness and attractiveness of the product.

In a possible implementation manner of the third aspect, the making a first texture layer on the first surface of the protective film body includes: coating a UV adhesive layer on the first surface of the protective film body, and embossing micro-film on the surface of the UV adhesive layer. Nanoscale trench texture.

In a possible implementation manner of the third aspect, the making a second texture layer on the second surface of the protective film body includes: coating a UV adhesive layer on the second surface of the protective film body, and embossing a micro-film on the surface of the UV adhesive layer. Nanoscale trench texture.

In a possible implementation manner of the third aspect, the pattern of the first texture layer is the same as the pattern of the second texture layer, and the pattern of the second texture layer is deflected by a certain angle with respect to the pattern of the first texture layer. A texture layer and the second texture layer are superimposed to form a moiré pattern.

In a possible implementation manner of the third aspect, the first texture layer includes a plurality of first linear stripes parallel to each other, the second texture layer includes a plurality of second linear stripes parallel to each other, and the first straight layer The projection of the line fringe on the second surface forms an included angle with the second straight fringe greater than 0 degrees.

In a possible implementation manner of the third aspect, the thickness of the first straight stripe in a direction perpendicular to the first surface is 2-20um, and the second straight stripe is in a direction perpendicular to the second surface. The thickness is 2-20um.

In a possible implementation manner of the third aspect, a distance between two adjacent first linear stripes is 20-250um, and a distance between two adjacent second linear stripes is 20-250um.

BRIEF DESCRIPTION OF THE DRAWINGS

1 is a schematic structural diagram of a texture protective film according to an embodiment of the present application;

2 is a schematic structural diagram of a first texture layer of a texture protection film according to an embodiment of the present application;

3 is a schematic structural diagram of a second texture layer of a texture protection film according to an embodiment of the present application;

4 is a schematic diagram of an interference texture pattern formed by superposing a first texture layer and a second texture layer of a texture protective film according to an embodiment of the present application;

5 is a schematic diagram of an included angle between a first straight stripe and a second straight stripe in a texture protective film according to an embodiment of the present application;

6 is a schematic cross-sectional structure diagram of a first texture layer in a texture protection film according to an embodiment of the present application;

7 is a schematic cross-sectional structure diagram of a texture protective film pasted on a glass cover according to an embodiment of the present application;

FIG. 8 is a schematic exploded structure diagram of a texture protective film attached to a glass cover according to an embodiment of the present application; FIG.

FIG. 9 is a schematic exploded structure diagram of a terminal according to an embodiment of the present application.

detailed description

The embodiments of the present application relate to a texture protective film, a terminal, and a method for manufacturing a texture protective film. The following briefly describes the concepts involved in the foregoing embodiments:

Moiré: Also known as Moire moire, Moire fringe, moire, and water moiré, it is an interference image produced by the overlapping of fence-like stripes.

PET film: also known as high temperature resistant polyester film. It has excellent physical properties, chemical properties and dimensional stability, transparency and recyclability.

Shadowless Adhesive: Shadowless Adhesive is also known as photosensitive adhesive and UV curing adhesive. Shadowless Adhesive is a type of adhesive that must be cured by ultraviolet light irradiation. It can be used as an adhesive or as a paint, coating, Use of rubber materials such as inks.

The terminal may be a mobile terminal, and the mobile terminal may include a mobile phone, a tablet computer, a Personal Digital Assistant (PDA), a Point of Sales (POS), a vehicle-mounted computer, and the like. The embodiment of the present invention does not specifically limit the specific form of the terminal.

As shown in FIGS. 1-3, an embodiment of the present application provides a texture protection film 100. The texture protection film 100 includes a protection film body 1. The first surface of the protection film body 1 is provided with a first texture layer 2. The second surface of the protective film body 1 is provided with a second texture layer 3, and the first surface is opposite to the second surface. As shown in FIG. 4, the first texture layer 2 and the second texture layer 3 Overlay to form interference texture patterns.

In the texture protection film provided in the embodiment of the present application, a first texture layer 2 and a second texture layer 3 are respectively provided on two opposite first and second surfaces of the protection film body 1, and the first texture layer 2 and The second texture layer 3 can be superimposed to form an interference texture pattern. Therefore, compared with a single-layer texture pattern, a texture pattern formed by interference of two layers of textures can produce a more three-dimensional, richer, and more fluid texture glare effect. As shown in FIG. 7, when the texture protective film is pasted on the inner surface of the cover glass 6 of the terminal, it can increase the sense of layering, depth, permeability, and decoration of the cover glass 6 and enhance product competition. Force and attraction.

The interference texture pattern may be a moiré pattern. For example, the pattern of the first texture layer 2 may be the same as the pattern of the second texture layer 3, and the pattern of the second texture layer 3 is relative to the first texture layer 2. The pattern is deflected by a certain angle, so that the first texture layer 2 and the second texture layer 3 overlap and form interference to form a moiré pattern.

The pattern of the first texture layer 2 and the pattern of the second texture layer 3 may be variously selected as long as they can interfere with the formation of a moiré pattern. For example, the pattern of the first texture layer 2 and the pattern of the second texture layer 3 may be uniform. It is a grid-like texture; as shown in FIG. 2 and FIG. 3, the first texture layer 2 includes a plurality of first linear stripes 21 arranged in parallel and spaced apart from each other, and the second texture layer 3 includes a plurality of parallel to each other In addition, as shown in FIG. 5, the second linear stripes 31 arranged at intervals are formed at an angle α of 10 degrees between the projection of the first linear stripes 21 on the second surface and the second linear stripes 31. Therefore, when the first texture layer 2 and the second texture layer 3 are superimposed, a moiré pattern similar to that shown in FIG. 4 can be seen. The moiré pattern can increase the sense of layering, depth, permeability, and decoration of glass materials (such as the glass cover of a mobile phone). It should be noted that the included angle α of the first straight stripe 21 and the second straight stripe 31 may be any angle not equal to 0 degrees, and different included angles may be superimposed to form different moiré patterns.

Among them, the size parameter of the texture pattern as shown in FIG. 6 may be selected from the following ranges: the thickness h of the first straight stripe 21 in a direction perpendicular to the first surface may be selected between 2um and 20um, and the first straight stripe A width d of 21 in a direction parallel to the first surface is 20-200um, and a distance w between two adjacent first linear stripes 21 may be 20um to 250um. The parameters are the same as those of the first straight stripe 21 described above. Hundreds of patterns can be changed within the above parameter range, with a variety of unexpected appearance effects. Selecting the above parameter range can improve the product's process effect and appearance quality.

As shown in FIG. 6, the outer surface 211 of the first linear stripe 21 may be a circular arc surface. In addition, the outer surface of the first linear stripe 21 may be a flat surface, which is not limited herein.

Specifically, the protective film body 1 may be a PET film. PET film is also called high temperature resistant polyester film. It has excellent physical properties, chemical properties and dimensional stability, transparency and recyclability. The first texture layer 2 and the second texture layer 3 can be formed on the front and back sides of the PET film through an Ultraviolet Rays (UV) glue embossing process, respectively.

In order to increase the brightness and transmittance of the texture protection film and improve the reflection texture of the texture pattern, as shown in FIG. 1, a first optical film 4 may be provided on a side of the first texture layer 2 away from the first surface, A second optical film 5 is disposed on a side of the two texture layers 3 away from the second surface, and the first optical film 4 and the second optical film 5 may be formed by a plating process. Therefore, the first optical film 4 can improve the brightness and reflection texture of the first texture layer 2, and the second optical film 5 can improve the brightness and reflection texture of the second texture layer 3, thereby improving the decorative effect of the texture protection film. In addition, colors may be added to the first optical film 4 and / or the second optical film 5 so that a colorful texture decoration effect can be formed.

An embodiment of the present application further provides a terminal. As shown in FIG. 7, the terminal includes a glass cover 6, and the inner surface of the glass cover 6 is pasted with the texture protection film 100 according to any one of the foregoing embodiments.

In the terminal provided in the embodiment of the present application, the texture protective film 100 is attached to the inner surface of the glass cover plate, and the first and second opposite surfaces of the protective film body 1 are respectively provided with the first texture layer 2 and The second texture layer 3, the first texture layer 2 and the second texture layer 3 can be superposed to form an interference texture pattern. Therefore, compared to the single-layer texture pattern, the texture pattern formed by the interference of two layers of texture will produce a more three-dimensional, richer, and more fluid texture glare light and shadow effect, which can increase the sense of layering and depth of glass products. , Transparency and decorative effects, enhance the competitiveness and attractiveness of end products.

As shown in FIG. 9, the terminal includes a middle frame main case 7, a display module (not shown in the figure) is arranged in the middle frame main case 7, and a front light emitting side of the middle frame main case 7 is provided. There is a front glass cover 61, and a back glass cover 62 is provided on the back of the middle frame main casing 7. The inner surface of the front glass cover 61 is affixed with the texture protective film or the back glass cover 62. The texture protection film is affixed to the inner surface, and the texture protection film may be affixed to both the inner surface of the front glass cover plate 61 and the inner surface of the back glass cover plate 62.

As shown in FIG. 7 and FIG. 8, when the texture protection film is attached, the first optical film 4 of the texture protection film and the glass cover plate can be bonded by the optical glue 8. An ink layer 9 for blocking light can be provided on a side of the second optical film 5 far from the second texture layer 3, thereby preventing light leakage from the mobile phone. It should be noted that the ink layer 9 may be one layer, two layers, or multiple layers, which is not limited herein. In addition, if the texture protective film is affixed to the front glass cover 61, the ink layer 9 can be avoided from being set on the display area of the mobile phone.

Those skilled in the art can understand that other configurations of the terminal in the embodiments of the present invention are well known to those skilled in the art, and will not be described in detail here.

The embodiment of the present application further provides a method for manufacturing a texture protective film, including the following steps:

Making a first texture layer 2 on a first surface of the protective film body 1;

A second texture layer 3 is formed on a second surface of the protective film body 1 opposite to the first surface, and the second texture layer 3 and the first texture layer 2 can be superposed to form an interference texture pattern.

A texture protection film having a double-sided texture pattern can be obtained through the above manufacturing method. Compared with a single-sided texture pattern, a texture pattern formed by the interference of two layers of textures will produce a more three-dimensional, richer, and more fluid texture glare light and shadow. The effect can increase the sense of layer, depth, permeability and decoration of glass products, and enhance the competitiveness and attractiveness of the product.

Wherein, making the first texture layer 2 on the first surface of the protective film body 1 may include the following steps: coating a UV adhesive layer on the first surface of the protective film body 1, and embossing micro-nano level grooves on the surface of the UV adhesive layer. Groove texture.

Making the second texture layer 3 on the second surface of the protective film body 1 may include the following steps: coating a UV adhesive layer on the second surface of the protective film body 1, and embossing micro-nano level groove texture on the surface of the UV adhesive layer. .

The above-mentioned embossing process can be implemented by a texture mold.

During the embossing process, the pattern of the first texture layer 2 and the pattern of the second texture layer 3 can be selected in various ways, as long as it can interfere with the formation of a moiré pattern, for example, the pattern of the first texture layer 2 and the second The pattern of the texture layer 3 may be uniformly embossed into a grid-like texture; or as shown in FIG. 2 and FIG. 3, the first texture layer 2 includes a plurality of first linear stripes 21 arranged in parallel and spaced from each other. The two texture layers 3 include a plurality of second linear stripes 31 arranged in parallel and spaced from each other. The projection of the first linear stripes 21 on the second surface forms an angle of 10 degrees with the second linear stripes 31. . Therefore, when the first texture layer 2 and the second texture layer 3 are superimposed, a moiré pattern similar to that shown in FIG. 4 can be seen. The moiré pattern can increase the sense of layering, depth, permeability, and decoration of glass materials (such as the glass cover of a mobile phone).

The process parameters of the above manufacturing method can be selected as follows: the thickness h of the first straight stripe 21 in a direction perpendicular to the first surface can be selected between 2um and 20um, and the first straight stripe 21 is parallel to the The width d in the direction of the first surface is 20-200um, and the distance w between two adjacent first linear stripes 21 may be between 20um and 250um. The parameters of the second linear stripes 31 are the same as those described above. The parameters of the line stripe 21 are the same. Hundreds of patterns can be changed within the above parameter range, with a variety of unexpected appearance effects. Selecting the above parameter range can improve the product's process effect and appearance quality.

In the description of this specification, specific features, structures, materials, or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

The above are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present invention. It should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

A texture protection film, comprising: a protection film body, wherein a first texture layer is provided on a first surface of the protection film body, and a second texture layer is provided on a second surface of the protection film body; The first surface is opposite to the second surface, and the first texture layer and the second texture layer are superimposed to form an interference texture pattern.
The texture protection film according to claim 1, wherein the pattern of the first texture layer is the same as the pattern of the second texture layer, and the pattern of the second texture layer is deflected with respect to the pattern of the first texture layer. Angle, the first texture layer and the second texture layer overlap to form a moiré pattern.
The texture protection film according to claim 2, wherein the first texture layer comprises a plurality of first linear stripes arranged in parallel and spaced from each other, and the second texture layer comprises a plurality of mutually parallel and spaced arrangements A second straight stripe, the projection of the first straight stripe on the second surface and the second straight stripe form an included angle greater than 0 degrees.
The texture protection film according to claim 3, wherein the thickness of the first linear stripe in a direction perpendicular to the first surface is 2-20um, and the thickness of the second linear stripe is perpendicular to the first surface. The thickness of the second surface in the direction is 2-20um.
The texture protection film according to claim 3, wherein a width of the first linear stripe in a direction parallel to the first surface is 20-200um, and the second linear stripe is parallel to the first surface. The width of the second surface in the direction is 20-200um.
The texture protection film according to any one of claims 3-5, wherein a distance between the two adjacent first linear stripes is 20-250um, and the two adjacent first The spacing between the two straight stripes is 20-250um.
The texture protection film according to any one of claims 3 to 6, wherein an outer surface of the first straight stripe is an arc surface.
The texture protection film according to any one of claims 1 to 7, wherein the protection film body is a PET film.
The texture protection film according to claim 1, wherein the first texture layer and the second texture layer are both formed by UV glue embossing.
The texture protection film according to any one of claims 1 to 9, wherein a side of the first texture layer far from the first surface is provided with a first optical film, and the second texture layer is far from A second optical film is provided on one side of the second surface, and the first optical film and the second optical film are used to increase light transmittance, increase brightness, and / or form color.
A terminal includes a glass cover plate, and the inner surface of the glass cover plate is adhered with the texture protection film according to any one of claims 1-10.
The terminal according to claim 11, wherein the terminal comprises a middle frame main casing, a display module is arranged in the middle frame main casing, and a front light emitting side of the middle frame main casing is provided with a front surface A glass cover, a back glass cover is provided on the back of the middle frame main casing, and the front surface glass cover and / or the inner surface of the back glass cover is attached with the texture protection film.
A method for manufacturing a texture protection film, which comprises the following steps:

Fabricating a first texture layer on a first surface of the protective film body;

A second texture layer is made on a second surface of the protective film body opposite to the first surface, and the second texture layer and the first texture layer can be superposed to form an interference texture pattern.
The method for manufacturing a textured protective film according to claim 13, wherein the manufacturing a first texture layer on a first surface of the protective film body comprises: coating a UV adhesive layer on the first surface of the protective film body, and Micro- and nano-level groove textures are embossed on the surface of the UV adhesive layer.
The method for manufacturing a textured protective film according to claim 13, wherein the manufacturing a second texture layer on the second surface of the protective film body comprises: coating a UV adhesive layer on the second surface of the protective film body, and Micro- and nano-level groove textures are embossed on the surface of the UV adhesive layer.
The method for manufacturing a texture protective film according to any one of claims 13-15, wherein the pattern of the first texture layer is the same as the pattern of the second texture layer, and the pattern of the second texture layer is opposite The pattern of the first texture layer is deflected at a certain angle, and the first texture layer and the second texture layer are superimposed to form a moiré pattern.
The method for manufacturing a texture protection film according to claim 16, wherein the first texture layer comprises a plurality of first linear stripes parallel to each other, and the second texture layer comprises a plurality of second parallel stripes A linear stripe, the projection of the first linear stripe on the second surface and the second linear stripe form an included angle greater than 0 degrees.
The method for manufacturing a texture protection film according to claim 17, wherein the thickness of the first linear stripe in a direction perpendicular to the first surface is 2-20um, and the second linear stripe is vertical The thickness in the direction of the second surface is 2-20um.
The method for manufacturing a texture protection film according to claim 17 or 18, wherein a width of the first straight stripe in a direction parallel to the first surface is 20-200um, and the second straight stripe The width in a direction parallel to the second surface is 20-200um.
The method for manufacturing a texture protective film according to any one of claims 17 to 19, wherein a distance between two adjacent first linear stripes is 20-250um, and two adjacent second ones The spacing of the straight stripes is 20-250um.