CN211880742U

CN211880742U - Decorative membrane, cover plate and electronic equipment

Info

Publication number: CN211880742U
Application number: CN201922337731.6U
Authority: CN
Inventors: 张迅; 易伟华; 刘明礼; 洪华俊; 孙如; 康利; 向军
Original assignee: Shenzhen Branch Of Jiangxi Vogel Photoelectric Co ltd
Current assignee: Shenzhen Branch Of Jiangxi Vogel Photoelectric Co ltd; WG Tech Jiangxi Co Ltd Shenzhen Branch
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-11-06
Anticipated expiration: 2029-12-23

Abstract

The utility model relates to a decorate diaphragm, apron and electronic equipment, the apron includes: a carrier layer comprising a first surface; the texture structure layer covers the first surface of the bearing layer, the texture structure layer comprises a plurality of cylindrical lenses, each cylindrical lens comprises a first side face and a second side face which are arranged at included angles, the intersection line of the first side face and the cross section of each cylindrical lens is a first side edge, the intersection line of the second side face and the cross section of each cylindrical lens is a second side edge, the included angle between the first side edge and the first surface is alpha, the included angle between the second side edge and the first surface is beta, and the beta is more than 0 degree and less than or equal to 90 degrees; and the reflecting layer is conformally covered on one side of the texture structure layer on which the cylindrical lens is formed. Above-mentioned decoration diaphragm can make the apron demonstrate the visual effect of light and shade gradual change.

Description

Decorative membrane, cover plate and electronic equipment

Technical Field

The utility model relates to an electronic equipment technical field especially relates to a decorate diaphragm, apron and electronic equipment.

Background

At present, the design of the cover plate of the electronic equipment mainly focuses on the replacement of materials (such as glass, metal and plastic) or the replacement of single color of a color layer, the appearance is monotonous, and the picture is not vivid enough. The decoration effect of the electronic equipment cover plate is poor, and the user requirements are difficult to meet.

SUMMERY OF THE UTILITY MODEL

Accordingly, there is a need to provide a decorative film, a cover plate and an electronic device, which can solve the problem of poor decorative effect of the cover plate of the conventional electronic device.

A decorative film, comprising:

a carrier layer comprising a first surface;

the texture structure layer covers the first surface of the bearing layer, the texture structure layer comprises a plurality of cylindrical lenses, each cylindrical lens comprises a first side face and a second side face which are arranged at included angles, the intersection line of the first side face and the cross section of each cylindrical lens is a first side edge, the intersection line of the second side face and the cross section of each cylindrical lens is a second side edge, the included angle between the first side edge and the first surface is alpha, the included angle between the second side edge and the first surface is beta, and the beta is more than 0 degree and less than or equal to 90 degrees; and

and the reflecting layer is conformally covered on one side of the texture structure layer on which the cylindrical lens is formed.

In the decorative film, light penetrates through the cover plate body, enters the decorative film from the second surface of the bearing layer, and is reflected on the surface where the texture structure layer is connected with the reflecting layer. Beta < alpha, namely the inclination angle of the first side surface relative to the first surface is larger than that of the second side surface relative to the first surface, and correspondingly, the intensity of the reflected light of the first side surface is smaller than that of the reflected light of the second side surface, so that a user can observe that the area corresponding to the first side surface is darker, the area corresponding to the second side surface is brighter, and the number of the cylindrical lenses is multiple, so that the cover plate has a visual effect of gradual light and shade change. In addition, the intensity of the reflected light of the first side surface and the second side surface changes along with the change of the observation angle, so that the cover plate can present a dynamic visual effect.

In one embodiment, the first side edge and the second side edge are connected.

In one embodiment, the cross-section of the lenticular lens further comprises a third side surface, the third side surface being located between the first side surface and the second side surface, and/or the third side surface being parallel to the first surface.

In one embodiment, the cylindrical lenses are arranged at intervals, and/or the cylindrical lenses are arranged periodically.

In one embodiment, the reflective layer comprises a tin layer, an indium tin alloy layer, a titanium oxide layer, a niobium oxide layer, a tin oxide layer, a zinc oxide layer, or a zinc tin oxide layer.

In one embodiment, the sheet resistance of the reflective layer is greater than 4000 Μ Ω.

In one embodiment, the decorative film further includes an ink layer covering a side of the reflective layer opposite to the texture structure layer.

In one embodiment, the material of the bearing layer includes any one of polyethylene, polypropylene, polyvinyl chloride, polycarbonate or polyethylene terephthalate.

The cover plate comprises a cover plate body and the decorative membrane, the bearing layer further comprises a second surface arranged opposite to the first surface, and the second surface of the bearing layer is bonded on the cover plate body.

An electronic device comprises the cover plate.

Drawings

FIG. 1 is a schematic diagram of a cover plate according to an embodiment;

FIG. 2 is a perspective view of a texture layer in the decorative film according to one embodiment;

FIG. 3 is an enlarged view taken at A in FIG. 2;

FIG. 4 is a perspective view of a texture layer in a decorative film according to another embodiment;

FIG. 5 is a schematic structural diagram of a decorative film according to another embodiment.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Electronic devices such as smart phones, tablet computers, smart watches, and the like all include a cover plate that can present a visual effect that is significantly gradual. The aforementioned cover may be a front cover and/or a rear cover of the electronic device. The electronic equipment further comprises a display screen, the front cover plate covers the display screen, and the position, corresponding to the display area of the display screen, of the front cover plate is transparent. The back cover plate is used for shielding batteries and other components of the electronic equipment.

Referring to fig. 1, the cover plate 200 includes a cover plate body 210, an adhesive layer 220 and a decorative film 100. In some embodiments, the adhesive layer 220 may be formed by coating a transparent optical adhesive (OCA) on the cover plate body 210, and the decorative film 100 is adhered to the cover plate body 210 by using the adhesive layer 220. The decoration film 100 is attached to the cover plate body 210, so that the cover plate 200 can present a visual effect of gradual light and shade change. In order to make the cover plate 200 have a certain visual effect, operations such as film coating are usually performed on the cover plate body 210 directly in the prior art, and the processing method may damage the cover plate body 210 to affect the yield of the product, resulting in high production cost. The utility model discloses a processing out earlier decorate diaphragm 100 and will decorate diaphragm 100 and lap the mode that body 210 carries out the laminating again, avoid carrying out operations such as coating film to lapping body 210, the product yield is high.

The cover plate body 210 is made of a transparent material, such as glass, Polycarbonate (PC), organic glass (PMMA), a composite material of PC and PMMA, and sapphire. The side of the cover plate body 210 attached with the decorative film 100 faces the inside of the electronic device, and the side of the cover plate body 210 opposite to the decorative film 100 faces the outside of the electronic device. Light can shine on the decoration membrane 100 through apron body 210, and then is reflected to the human eye, produces the visual effect of light and shade gradual change.

Referring to fig. 1, a decorative film 100 includes a carrier layer 10, a texture structure layer 20, and a reflective layer 30. The carrier layer 10 includes a first surface 11, the texture structure layer 20 covers the first surface 11 of the carrier layer 10, the carrier layer 10 further includes a second surface 12 opposite to the first surface 11, and the second surface 12 of the carrier layer 10 is adhered to the cover body 210. The textured layer 20 includes a plurality of cylindrical lenses 21. The reflective layer 30 is conformally coated on one side of the texture structure layer 20 where the cylindrical lenses 21 are formed, one side of the texture structure layer 20 where the cylindrical lenses 21 are formed is an uneven undulating surface, and the reflective layer 30 is formed on the undulating surface of the texture structure layer 20 through a vacuum coating process.

Referring to fig. 2 and fig. 3, the cylindrical lens 21 includes a first side surface 211 and a second side surface 212 arranged at an included angle, an intersection line of a cross section of the cylindrical lens 21 and the first side surface 211 is a first side edge 211a, an intersection line of a cross section of the cylindrical lens 21 and the second side surface 212 is a second side edge 212a, an included angle between the first side edge 211a and the first surface 11 is set to be α, an included angle between the second side edge 212a and the first surface 11 is set to be β, and β < α is less than or equal to 90 °.

The light penetrates through the cover body 210, enters the decorative film 100 from the second surface 12 of the bearing layer 10, and is reflected on the surface where the texture structure layer 20 is connected with the reflection layer 30. β < α, i.e., the inclination angle of the first side surface 211 relative to the first surface 11 is greater than the inclination angle of the second side surface 212 relative to the first surface 11, and accordingly, the intensity of the reflected light of the first side surface 211 is less than the intensity of the reflected light of the second side surface 212, so that a user can observe that the area corresponding to the first side surface 211 is darker, the area corresponding to the second side surface 212 is lighter, and the number of the cylindrical lenses 21 is multiple, thereby enabling the cover plate 200 to present a visual effect of gradual shading. In addition, as the observation angle changes, the intensity of the reflected light of the first side 211 and the second side 212 changes, so that the cover plate 200 can present a dynamic visual effect.

The texture structure layer 20 includes a substrate 22 and a plurality of cylindrical lenses 21 disposed on the substrate 22, and the substrate 22 and the cylindrical lenses 21 are made of the same material and are of an integral structure. The texture structure layer 20 is made of thermal curing glue or UV glue, and can be formed by stamping and curing. In some embodiments, referring to fig. 2, the cylindrical lens 21 may be in the shape of a long strip. In other embodiments, the cylindrical lens 21 may have a wave shape or a circular ring shape.

In one embodiment, referring to fig. 3, the first side 211a is connected to the second side 212a, and the cylindrical lens 21 has a triangular cross section.

In another embodiment, referring to fig. 4, the cross section of the cylindrical lens 21 further includes a third side surface 213, two ends of the third side surface 213 are respectively connected to the first side surface 211 and the second side surface 212, that is, the cylindrical lens 21 has three side surfaces, and the intensities of the reflected lights of the different side surfaces are all different, so that a light and dark gradient effect with rich gradation can be presented.

Further, the third side 213 is parallel to the first surface 11, that is, the cross section of the cylindrical lens 21 is trapezoidal, and the included angle between two adjacent sides is greater than or equal to 90 degrees, which facilitates the stamping.

In an embodiment, referring to fig. 5, the cylindrical lenses 21 are arranged at intervals, the concave portion 23 between two adjacent cylindrical lenses 21 is disposed parallel to the first surface 11, and the reflected light intensities of the first side surface 211, the second side surface 212 and the concave portion 23 are different, so as to obtain a light and dark gradient effect with rich gradation. Further, the cylindrical lenses 21 are periodically arranged, so that the cover plate 200 presents a regular visual effect of light and shade gradual change.

It is understood that the plurality of cylindrical lenses 21 may be disposed in a continuous distribution.

The reflective layer 30 includes a tin layer, an indium tin alloy layer, a titanium oxide layer, a niobium oxide layer, a tin oxide layer, a zinc oxide layer, or a zinc tin oxide layer, and the reflective layer 30 made of the above materials is a non-conductive film layer and does not interfere with the radio frequency signal of the electronic device.

It should be noted that, as the composition and thickness of the reflective layer 30 change, the wavelength range of the reflected light changes correspondingly, so that the cover plate 200 presents a corresponding color. Specifically, a magnetron sputtering process may be adopted to form the reflective layer 30, and by adjusting the process parameters of magnetron sputtering, the composition of the reflective layer 30 can be changed, so that the cover plate 200 presents different colors.

The sheet resistance of the reflective layer 30 is greater than 4000M Ω, i.e., the reflective layer 30 does not interfere with the rf signal. When the cover plate 200 is applied to an electronic device, the reflective layer 30 does not affect the rf signal of the electronic device.

The decorative film 100 further includes an ink layer 40, and the ink layer 40 covers a side of the reflective layer 30 facing away from the texture structure layer 20. Ink layer 40 is formed of an opaque ink. When the cover plate 200 is mounted on an electronic device, the ink layer 40 can block an internal structure of the electronic device, so that the electronic device has a good appearance effect. Moreover, the ink layer 40 is generally made of an insulating material, which can achieve an insulating effect and prevent the current inside the electronic device from being conducted to the cover plate 200. Further, the ink layer 40 can isolate the reflective layer 30 from water and air.

In some embodiments, ink layer 40 is a black ink layer 40 or a brown ink layer 40, i.e., ink layer 40 acts as a substrate, which can set off the color of reflective layer 30. In other embodiments, the ink layer 40 can also be an ink layer 40 with other colors to cooperate with the reflective layer 30, so that the cover plate 200 presents a specific color. Specifically, the ink layer 40 may be formed by silk-screen printing, coating, or spraying.

The material of the bearing layer 10 includes any one or a combination of any two of polyethylene, polypropylene, polyvinyl chloride, polycarbonate or polyethylene terephthalate.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A decorative film, comprising:

a carrier layer comprising a first surface;

2. The decorative film of claim 1, wherein said first side and said second side are contiguous.

3. The decorative film of claim 1, wherein the cross-section of the lenticular lens further comprises a third side, the third side being located between the first side and the second side, and/or the third side being parallel to the first surface.

4. The decorative film of claim 1, wherein the cylindrical lenses are spaced apart and/or the cylindrical lenses are arranged periodically.

5. The decorative film of claim 1, wherein the reflective layer comprises a tin layer, an indium tin alloy layer, a titanium oxide layer, a niobium oxide layer, a tin oxide layer, a zinc oxide layer, or a zinc tin oxide layer.

6. The decorative film of claim 1, wherein the sheet resistance of the reflective layer is greater than 4000 Μ Ω.

7. The decorative film of claim 1, further comprising an ink layer covering a side of the reflective layer facing away from the texture layer.

8. The decorative film of claim 1, wherein the material of the carrier layer comprises any one of polyethylene, polypropylene, polyvinyl chloride, polycarbonate or polyethylene terephthalate.

9. A cover comprising a cover body and the decorative film of any of claims 1-8, wherein the carrier further comprises a second surface disposed opposite the first surface, the second surface of the carrier being bonded to the cover body.

10. An electronic device comprising the cover plate of claim 9.