CN211843917U

CN211843917U - Decorative membrane, mold and electronic equipment cover plate

Info

Publication number: CN211843917U
Application number: CN201922416829.0U
Authority: CN
Inventors: 杨广舟; 肖超; 李方彬; 亢红伟
Original assignee: Shine Optoelectronics Kunshan Co Ltd
Current assignee: Shine Optoelectronics Kunshan Co Ltd
Priority date: 2019-12-29
Filing date: 2019-12-29
Publication date: 2020-11-03
Anticipated expiration: 2029-12-29

Abstract

The application provides a decorate diaphragm, mould and electronic equipment apron. The decorative film comprises a texture layer, a decorative film body and a decorative film layer, wherein the texture layer comprises a grid-shaped texture pattern, grid lines forming the grid shape are arranged in a protruding and/or sunken mode, and the heights or the depths of the grid lines or single grid line are arranged in a changing mode along the extending direction. The texture layer of this decoration diaphragm has the texture pattern that curve intersection, depth change combined together like this, and different visual angles are seen and are presented the change of different light and shadow, and the optical effect twists reverse along with the summit or the intersect of gridlines, and light and shade are alternated along with the texture depth change, and then make decorative effect cool dazzle, improve user's visual experience.

Description

Decorative membrane, mold and electronic equipment cover plate

Technical Field

The utility model relates to a decorate the diaphragm, specificly relate to a curve texture decorate diaphragm, mould and electronic equipment apron.

Background

With the improvement of the living standard, besides the portable intelligent devices such as mobile phones and PADs, the appearance requirements of users are higher and higher, and therefore, in order to attract customers, the development of appearance is increased by merchants, and the merchants hope to design distinctive products. Taking a mobile phone as an example, the mobile phone cover plate not only plays a role in protecting parts inside the mobile phone, but also plays a role in beautifying and decorating, and the design of the mobile phone cover plate with excellent decoration effect can not only increase the value of the mobile phone, but also improve the use experience of users, and increase the selection range of the users for the appearance of the mobile phone, so that the mobile phone is popular with more users. However, the current decoration design of the mobile phone cover plate focuses on the replacement of materials (such as glass, metal, plastic) or the replacement of a single color of a color layer, which results in a single vision and an insufficient vivid picture, thereby causing a poor decoration effect.

Therefore, there is a need in the art for a new decorative film.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides an aim at: the novel decorative film is provided with a micro-nano structure with curve cross depth change, and the change of different light and shadow can be seen from different visual angles, so that the decorative effect is realized.

In order to achieve the purpose, the technical scheme adopted by the application is as follows,

the decorative film is characterized by comprising a texture layer, wherein the texture layer comprises a latticed texture pattern, grid lines forming the latticed texture pattern are arranged in a protruding and/or recessed mode, and the heights or the depths of the grid lines or single grid line are arranged in a changing mode along the extending direction. Due to the design, the texture pattern has the texture pattern combining intersection and depth change, the texture pattern presents different light and shadow changes at different visual angles, the optical effect is twisted along with the top points or intersection points of the grid lines, and the light and the shade are alternated along with the depth change of the texture, so that the visual experience of a user is improved.

Preferably, the texture pattern comprises a plurality of textures, the plurality of textures are mutually crossed to form a grid shape, and at the crossed position of the grid, the textures are arranged in a coherent or incoherent mode.

Preferably, the cross-sectional shape of the texture or grid lines is circular arc, rectangular, triangular or arcuate.

Preferably, at the edge of the decorative film, the height or depth of the protrusions and/or the depressions is 0 or close to 0, or the height or depth of the texture is 0 or close to 0.

Preferably, the decorative film may further include a reflective layer covering the texture layer, and a colored layer disposed on the reflective layer.

Preferably, the texture pattern includes a plurality of textures arranged in a grid shape in a crossing manner, and the textures are linear, curved, or broken lines.

Preferably, the decorative film further comprises a bearing layer, wherein the texture layer is laminated on the bearing layer, and the material of the texture layer is consistent with that of the texture pattern or is selected from one or a combination of a PET material, a PC material, a PMMA material and a PC composite material.

Preferably, the decorative film further comprises a reflective layer, a colored layer disposed on the reflective layer, and a texture layer disposed on the reflective layer. The reflecting layer is used for enhancing the optical effect and can also provide colors for the decorative film; the coloring layer is generally a priming ink layer for priming and color development of the auxiliary reflective layer, thus further improving the visual effect.

Preferably, each of the said grid lines or textures differs in at least one of amplitude, curvature, width, angle, radian, width and length.

The embodiment of the application provides a mold, which is characterized by comprising a molding surface, wherein the molding surface comprises a target texture pattern matched with the texture pattern, and the target texture pattern is a convex structure and/or a concave structure and is used for molding the texture pattern.

The embodiment of the application also provides an electronic equipment cover plate which carries the decorative film.

Advantageous effects

The application provides decorate the diaphragm and have curve intersection, the depth change texture pattern that combines together, the change that presents different light and shadow is seen at different visual angles in the vision, and the optical effect twists reverse along with the summit or the intersect of gridlines, and light and shade are alternative along with the change of texture depth, and then make decorative effect cool dazzle, improve user's visual experience, and then carry on its electronic equipment apron and have good decorative effect.

Drawings

In order to more clearly illustrate the embodiments of the present specification or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the specification, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise:

FIG. 1 is a schematic structural view illustrating the texture of a decorative film according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural view illustrating the texture of a decorative film according to an embodiment of the present disclosure;

fig. 3 and 3a are schematic structural diagrams illustrating textures of the decorative film according to the embodiment of the application;

FIG. 4 is a schematic cross-sectional view of a decorative film according to an embodiment of the present disclosure;

fig. 5 is a schematic cross-sectional view illustrating a textured surface to be processed according to an embodiment of the present invention.

Detailed Description

In order to make those skilled in the art better understand the technical solution proposed by the present invention, the technical solution in the embodiments of the present specification will be clearly and completely described below with reference to the drawings in the embodiments of the present specification, and it is obvious that the described embodiments are only a part of the embodiments in the present specification, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from one or more of the embodiments described herein without making any inventive step, shall fall within the scope of protection of the present invention.

The application provides a decorative membrane, which comprises a texture layer, wherein the texture layer comprises at least one texture pattern, the texture layer comprises a curved texture which is configured to change the height or the depth along the extending direction, and/or a plurality of textures which are configured to be at least partially curved arrays in a crossed mode, or the texture layer comprises a grid-shaped texture pattern, grid lines which form a grid are arranged in a protruding and/or concave mode, and the height or the depth of the grid lines or single grid lines is arranged along the extending direction in a changing mode. By the design, the optical effect of the decorative film is twisted along with the vertex or the intersection point of the curve, and the light and the shade alternate along with the change of the depth of the texture, so that the decorative film visually presents the change of different light shadows from different visual angles. The decorative effect is increased, the decorative vision is rich, and the picture is vivid.

The decorative film proposed by the embodiment of the present application will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1, a decorative film 100 according to an embodiment of the present invention includes a texture layer 101 having a micro-nano structure with a grid-like variation therein, which has a convex structure and/or a concave structure (not shown). The latticed micro-nano structure is composed of a plurality of grid lines, and by the design, the change of different light and shadow is shown at different visual angles, and the optical effect is twisted along with the intersection of the curves, so that the decorative effect is cool.

As a variation of the embodiment of fig. 1, as shown in fig. 2, the decorative film 200 comprises a texture layer having three texture patterns, a first texture 201, a second texture 202, and a third texture 203, which are respectively curved (they are combined into at least a partial grid pattern, in which case the grid lines are also called curves), and the three texture patterns respectively have a convex structure and/or a concave structure (not shown). The design shows different light and shadow changes at different visual angles. The processing plane can be sequentially carved on the processing plane or stamped by a mould during manufacturing.

As a variation of the embodiment of fig. 1, as shown in fig. 3, the decorative film 300 includes a texture layer having a curved texture pattern 301 therein. Preferably, the curved texture conforms to a certain function model, such as a shape distribution according to a sine function or a cosine function, or a combination of sine and cosine. The grain pattern has convex structures and/or concave structures (not shown), and the cross-sectional shape of the grain pattern is circular arc, rectangular, triangular, or arcuate. The design shows different light and shadow changes at different visual angles. Thereby making the decorative effect very cool. As a variation of the embodiment of fig. 3a, the decorative film 500 comprises a texture layer having a curved texture pattern 501 therein, and a plurality of dots 502, wherein the dots 502 may be located on or near the curve. Preferably, the dots are also concentric circles, thus being visually radial.

The decorative film of the present application further comprises a carrier layer as shown in fig. 4, the decorative film 400 having a texture layer 401 laminated on a carrier layer 402. The material of the bearing layer is consistent with that of the curved texture or is selected from one or a combination of PET material, PC material, PMMA material and PC composite material, preferably, the micro-nano structure is arranged at one side of the bearing layer in a gully shape, when the bearing layer is a colored bearing layer and is PET, PMMA, glass, PC or composite board and the like, light curing glue or heat curing glue is arranged at one side of the colored bearing layer, texture patterns are arranged at one side far away from the colored bearing layer, and the light curing glue or the heat curing glue can also be colored; or a colored film is arranged on the transparent object color substrate to form a colored bearing layer, the transparent colorless substrate can be PET, PMMA, glass, PC or a composite board and the like, light curing glue or heat curing glue is arranged on one side of the colored bearing layer, a texture pattern is arranged on one side far away from the colored bearing layer, and the light curing glue or the heat curing glue can also be colored; or the colored bearing layer is thermal curing glue or light curing glue, and then a pattern structure is formed on the thermal curing glue or the light curing glue; the above-described structure on a colored carrier layer is suitable when the carrier layer is colorless.

In one embodiment, the decorative film may further include a reflective layer covering the texture layer, and a colored layer disposed on the reflective layer. The reflecting layer is used for enhancing the optical effect and can also provide colors for the decorative film; the colored layer is generally a priming ink layer for priming and color development of the auxiliary reflective layer.

In one embodiment, the curved grain pattern is in a grid shape. Or the depth in the thickness direction changes, so that the optical effect is twisted along with the vertex of the curve, and the light and the shade alternate along with the depth change of the texture, thereby having good decorative effect.

In one embodiment, the texture pattern comprises at least one of a curve, a straight line, a broken line, or a combination thereof.

In one embodiment, the texture pattern comprises a combination of light and shadow stripes and a dot matrix.

The present application provides a mold for forming the above-mentioned texture layer, comprising a surface for forming at least one texture pattern of a convex structure or a concave structure, wherein the at least one texture pattern comprises at least one sub-texture pattern unit in a curved array. In a specific implementation, a microstructure design may be performed in advance, and referring to fig. 5, on a to-be-processed surface 10 of a mold, a tool moves on a processing plane along a vector direction of an X, Y axis, and depth changes (a groove depth h1 side is deeper than a groove depth h2 side) in a Fast Tool Servo (FTS) manner in a Z axis direction while moving, so as to process a curve. The UV texture is processed on the die and can be formed by a plurality of target curves, the line width of each target curve is changed in a width staggered mode, each better curve can be arranged oppositely by adopting different radians, and a plurality of wave crests can be formed by arranging the target curves. Or each curve may be arranged in an intersecting, overlapping, etc. manner. The cross section of the material is arc-shaped, rectangular, triangular or arched. The mold thus processed is used to form a target texture pattern matching the shape thereof. For example, a predetermined UV paste is coated on the substrate and then imprinted by the mold. In another embodiment, the substrate may be coated with a predetermined UV paste and then cured, and a texture pattern having a curved line array, which may include a multi-center pattern, may be engraved on the processing surface by a multi-axis processing apparatus at a later stage.

In the method for making the texture (refer to fig. 5), the tool 10 moves along the vector direction of X, Y axis on the processing plane, the height (depth variation) of the tool is adjusted along the Z axis direction while moving, after a curve is run (the groove depth of the curve may be inconsistent), the next curve is shifted to a certain direction (a certain distance or angle is shifted) to continue processing, preferably a curve array is formed in a preset area on the processing plane, and preferably, the curve array is processed into an arbitrary curve crossed with the curve array, and the curve moves along the vector directions of X and Y while passing through the height (depth variation) of the tool along the Z axis direction. This produces an array of intersecting curves. The manufacturing method comprises the steps of utilizing multi-axis processing equipment to perform curve movement (to carve curve patterns) on the processing surface of a die or the processing surface of a solidified UV texture layer in the horizontal direction by utilizing a processing cutter, and continuing to perform curve movement in the horizontal direction after a preset distance or angle is offset after one-time curve movement is completed. Preferably, the working surface is moved up/down in the vertical direction while moving in a curve in the horizontal direction, so that the working (engraving) line is curved or the line is crossed while the depth is varied. The width of the groove is gradually increased or gradually decreased or the period of the groove is increased and decreased.

In one embodiment, the micro-nano structure may be one or a combination of a curved cylindrical mirror and a wiredrawing; the cross section of the micro-nano structure is arc, trapezoid, triangle, quadrangle, and at least one side is arc or polygon. This dimension receives structure can be by the mould rendition, during the rendition, pack into the mould UV transfer machine dull and stereotyped in, fixed level and smooth, inject the UV glue that texture layer corresponds into in to the mould, with the substrate on the mould, make UV glue and substrate laminating with the help of compression roller suppression, through ultraviolet curing, accomplish UV texture rendition promptly. Or by engraving on the working surface with a working device. Preferably, the micro-nano structure is filled with pigment (or photochromic pigment), so that the decorative membrane has gorgeous and changeable color, vivid picture and good aesthetic degree.

In the design of the texture layer, the texture layer comprises a grid-shaped texture pattern, grid lines forming the grid shape are arranged in a protruding and/or sunken mode, and the heights or the depths of the grid lines or single grid lines are arranged in a changing mode along the extending direction. Preferably, the grid lines are continuous or discontinuous in local areas. Preferably, the ratio of the coverage area of the curve pattern to the area of the decorative membrane carrying the curve pattern is more than 80%, so that the decorative membrane does not have too much blank visually, and the decorative membrane has gorgeous and varied colors, vivid pictures and good attractiveness.

In the design of the texture layer, the texture pattern comprises a plurality of textures, the plurality of textures are mutually crossed to form a grid shape, and at the crossed position of the grid, the textures are arranged in a coherent or incoherent mode. The texture is continuously arranged at the intersection, and is not continuous, when the texture is mutually connected, the intersection has a shared part, and when the texture is not connected, one texture is disconnected at the intersection and continuously extends beyond the intersection.

In the design of the texture layer, it includes a plurality of grid lines, which are sine curves, cosine curves or other irregular curves. Each grid line has at least one parameter of amplitude, curvature, width, angle, radian, width, length, etc. that is different. Preferably, the grid line includes a first end and a second end at two ends thereof.

In the design of the texture layer, the texture layer is configured to include one texture which is configured to change in height or depth along the extending direction and has a curve shape, and/or a plurality of textures which are configured to be at least partially in a curve array in which the textures are arranged in a crossed mode. The optical effect is twisted along with the vertex intersection point of the curve, and the light and the shade are alternated along with the change of the texture depth, so that the decorative effect is good.

In the design of the texture layer, the height/depth of the projections and/or the depressions of the grid lines at the edge or the shearing edge is zero or close to 0, or the grid lines at the edge or the shearing edge are linear or close to linear, so that the saw-toothed shape at the shearing position is avoided during shearing.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. A decorative film, comprising,

the texture layer comprises a grid-shaped texture pattern, grid lines forming the grid shape are arranged in a protruding and/or concave mode, and the height or the depth between the grid lines or the height or the depth of a single grid line is arranged along the extending direction in a changing mode.

2. The decorative film of claim 1,

the texture pattern comprises a plurality of textures, the plurality of textures are mutually crossed to form a grid shape, and at the crossed position of the grid, the textures are arranged in a coherent or incoherent mode.

3. The decorative film of claim 1, wherein the cross-sectional shape of said grain or grid lines is circular, rectangular, triangular or arcuate.

4. Decorative film according to claim 1, wherein at the edge of the decorative film the height or depth of the protrusions and/or depressions is 0 or close to 0, or the texture height or depth is 0 or close to 0.

5. The decorative film of claim 1, further comprising a reflective layer overlying the textured layer, and a colored layer disposed on the reflective layer.

6. The decorative film of claim 1, wherein said grain pattern comprises a plurality of grains arranged in a grid pattern, said grains being linear, curved or broken.

7. The decorative film of claim 1, further comprising a carrier layer, wherein the texture layer is laminated on the carrier layer, and the texture layer is made of a material consistent with the texture pattern or selected from one or a combination of a PET material, a PC material, a PMMA material and a PC composite material.

8. The decorative film of claim 1, wherein each of said grid lines or textures differs in at least one of amplitude, curvature, width, angle, curvature, width, and length.

9. A mold comprising a molding surface comprising a target texture pattern matching the texture pattern of any one of claims 1 to 8, the target texture pattern being a raised structure and/or a recessed structure for molding the texture pattern.

10. An electronic device cover carrying a decorative film according to any one of claims 1 to 8.