CN109274786B

CN109274786B - Outward appearance piece, lid and battery pack behind cell-phone

Info

Publication number: CN109274786B
Application number: CN201810933215.7A
Authority: CN
Inventors: 游伟; 刘立冬; 高育龙; 江州
Original assignee: Shine Optoelectronics Kunshan Co Ltd
Current assignee: Shine Optoelectronics Kunshan Co Ltd
Priority date: 2018-08-16
Filing date: 2018-08-16
Publication date: 2021-11-26
Anticipated expiration: 2038-08-16
Also published as: CN109274786A

Abstract

The invention discloses an appearance piece which comprises a bearing layer and a decorative layer. One side of the bearing layer is provided with a plurality of raised and/or depressed texture surfaces. The decorative layer is covered on the texture surface and arranged along with the texture surface in an undulated manner. The decorative layer is a colored layer with the transmittance of less than 58%. The decorative layer is displayed outwards, and the colored layer which is low in transmittance and arranged in an up-and-down mode is displayed outwards to have a colored texture effect, so that a good decorative effect is achieved. In addition, the invention also discloses a mobile phone rear cover and a battery pack with the appearance piece.

Description

Outward appearance piece, lid and battery pack behind cell-phone

Technical Field

The invention particularly relates to an appearance piece, a mobile phone rear cover and a battery pack, and belongs to the field of optics.

Background

In recent years, with the continuous development of electronic technology, the use of electronic devices is becoming more and more popular, and the electronic devices are being developed toward convenient, multifunctional and beautiful designs. The appearance design of the electronic equipment is mainly the design of the cover plate of the electronic equipment. 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 the mobile phone, 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 on the appearance of the mobile phone, so that the mobile phone is popular with more users. At present, the design of the mobile phone cover plate mainly comprises the selection of colors and the surface treatment. However, neither color selection nor surface treatment is monotonous, and a good decorative effect cannot be obtained.

Disclosure of Invention

The invention mainly aims to provide an appearance piece, a mobile phone rear cover and a battery assembly, so that the defects in the prior art are overcome.

In order to achieve the purpose, the technical scheme adopted by the invention comprises the following steps:

an appearance piece, comprising:

one side of the bearing layer is a texture surface with a plurality of bulges and/or depressions;

the decorative layer is covered on the texture surface and arranged along with the texture surface in an undulated manner;

the decorative layer is a colored layer with the transmittance of less than 58%.

In some embodiments, the decorative layer is a colored ink layer, a colored resin layer, or a colored polymer layer printed, coated, sprayed, or evaporated on the texture surface.

In some embodiments, the decorative layer is a colored ink layer doped with reflective metal particles.

In some embodiments, the relief height difference Δ h of the decorative layer is greater than or equal to 0.5 μm.

In some embodiments, the decorative layer includes a plurality of ridges and/or valleys, the ridges or valleys having a width W ≧ 1 mm.

In some embodiments, the carrier layer comprises a UV glue layer which is embossed with a texture structure provided with protrusions and/or recesses, the texture structure forming the texture surface.

In some embodiments, the carrier layer further comprises a PET layer, and the UV glue layer is disposed on the PET layer.

In some embodiments, the texture structure comprises any one or a combination of two or more of a lenticular lens, a microlens, a small stub, a CD pattern, a fresnel lens, a moth-eye structure, and a wire-drawing pattern.

The invention also discloses a mobile phone rear cover, which comprises a perspective layer and the appearance piece combined with the perspective layer, wherein the decorative layer of the appearance piece is arranged on the perspective layer.

In some embodiments, the decorative layer further comprises a battery module, and the battery module is adhered to the other side, opposite to the decorative layer, of the bearing layer.

The invention also discloses a battery assembly which comprises a battery module and the appearance piece which is stuck to the battery module.

Compared with the prior art, the decorative layer covers and is arranged on the texture surface and is arranged along with the texture surface in an up-and-down mode, the decorative layer is a colored layer with the transmittance of less than 58%, the decorative layer displays the color outwards, the colored layer with the low transmittance and the up-and-down mode displays the colored texture effect outwards, and therefore the decorative effect is good.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic cross-sectional view of an appearance member according to a first embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view of an appearance member according to a second embodiment of the present invention.

Fig. 3 is a schematic cross-sectional view of an appearance member according to a third embodiment of the present invention.

Fig. 4 is a schematic cross-sectional structure diagram of a rear cover of a mobile phone according to the present invention.

Detailed Description

In view of the deficiencies in the prior art, the inventors of the present invention have made extensive studies and extensive practices to provide technical solutions of the present invention. The technical solution, its implementation and principles, etc. will be further explained as follows.

It is to be noted that the definitions of the terms mentioned in the description of the present invention are known to those skilled in the art. Also, 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.

The invention discloses an appearance piece which comprises a bearing layer and a decorative layer. One side of the bearing layer is provided with a plurality of raised and/or depressed texture surfaces. The decorative layer is covered on the texture surface and arranged along with the texture surface in an undulated manner. The decorative layer is a colored layer with the transmittance of less than 58%. The decorative layer is displayed outwards, and the colored layer which is low in transmittance and arranged in an up-and-down mode is displayed outwards to have a colored texture effect, so that a good decorative effect is achieved.

Preferably, the decorative layer is a colored ink layer, a colored resin layer or a colored polymer layer which is printed, coated, sprayed or evaporated on the texture surface. The decorative layer may be formed in various manners as described above, and the material may be the various materials as described above. For example, the decoration layer may be a silk-screen ink layer, and the silk-screen thickness is typically 2-6 μm. For another example, the decoration layer is an evaporation layer, and the evaporation thickness is generally 300-600 nm.

Preferably, the decorative layer is a colored ink layer doped with metal particles having a reflecting effect. The reflection effect of the decorative layer is increased, so that the presented texture is more obvious, the color is more bright, and the decorative effect is increased. The metal particles are for example silver particles.

Preferably, the relief height difference Δ h of the decorative layer is 0.5 μm or more. The decorative layer comprises a plurality of bulges and/or low-voltage parts, and the width W of the bulges or the low-voltage parts is more than or equal to 1 mm. In this way, the texture visibility of the decorative layer is increased, so that the decorative layer can exhibit a significant texture effect.

Preferably, the bearing layer comprises a UV adhesive layer, the UV adhesive layer is formed by embossing a texture structure with convex and/or concave arrangement, and the texture structure forms a texture surface. The decorative layer is conformal on the texture structure of the UV adhesive layer and is arranged in an undulated mode and shows a texture effect. The UV glue layer is adopted to stamp the texture structure, the plasticity is high, the complex texture structure can be stamped and formed, the depth and the width of the stamped texture structure are controllable, and the range is large, so that the decorative layer can obtain the expected texture effect. And the stamping forming design dimension is large, the process is simple, and the yield is high.

Preferably, the bearing layer further comprises a PET layer, and the UV adhesive layer is covered on the PET layer. And coating UV glue on the PET, and forming a texture structure after embossing and curing. And then silk-screen printing color ink on the texture surface. In other embodiments, other substrates such as PC and PMMA may be used.

Preferably, the texture structure includes any one or a combination of two or more of a lenticular lens, a microlens, a small stub, a CD pattern, a fresnel lens, a moth-eye structure, and a wire-drawing pattern. Of course, the texture structure can also be in the form of text, such as a specific text or logo.

The invention also discloses a mobile phone rear cover which comprises a perspective layer and the appearance piece combined with the perspective layer. The decorative layer of the appearance piece is arranged on the perspective layer. Preferably, the see-through layer is a transparent glass layer. The texture on the decorative layer can be observed through the transparent glass layer. Has unique and beautiful effect.

Preferably, the mobile phone rear cover can also comprise a battery module. The battery module is pasted on the other side of the bearing layer relative to the decoration layer. Therefore, the mobile phone rear cover is internally visible, and the battery module occupying the main visual range has a good texture effect and a very good decorative effect.

The invention also discloses a battery assembly which comprises a battery module and an appearance piece adhered to the battery module. For example, when the transparent mobile phone rear cover is applied to a mobile phone with the transparent mobile phone rear cover, the observable battery assembly has better appearance, and the decorative value of the whole mobile phone is improved. And the appearance piece is pasted on the battery module, simple process, and low cost does not influence the original process and the processing procedure of battery module, and after pasting the appearance piece, the battery module has better outward appearance, can regard as the exterior part to vwatch and use.

Of course, in the embodiment, the appearance member may be disposed on the outer package of other electronic devices or various products.

The technical scheme of the invention is further explained in detail by a plurality of embodiments and the accompanying drawings. However, the examples are chosen only for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.

Referring to fig. 1, an exterior member 1 according to a first embodiment of the present invention includes a carrier layer and a decorative layer 12. The carrier layer comprises a PET layer 10 and a UV glue layer 11 disposed on the PET layer 10. The UV glue layer 11 is formed with a plurality of embossments 111 on one side, and a textured surface 112 is formed on one side having the plurality of embossments 111. The decoration layer 12 is formed by silk-printing colored ink on the texture surface 112, the decoration layer 12 is arranged along with the fluctuation of the texture surface 112, that is, the whole layer of the decoration layer 12 fluctuates along the texture surface 112, and the surface of the decoration layer 12 far away from the texture surface 112 has the same fluctuation shape as the texture surface 112. The decorative layer 12 is provided as a colored layer having a transmittance of less than 58%, so that the decorative layer appears to the outside as a colored grain effect. And the surface area is increased by the undulation shape of the decoration layer 12, the effect on light is enhanced, and a certain reflection effect is achieved, so that the texture effect is more obvious, the color is more bright, and a certain optical effect can be achieved.

The protrusions 111 are a plurality of cylindrical mirrors arranged at intervals, and the width w of each cylindrical mirror is larger than 1 m. For example, the arrangement period of the plurality of cylindrical mirrors (one period is the sum of the width of one cylindrical mirror and the width of one space) is 1.5 mm. The period of the arrangement can see a significant texture effect. The height of the cylindrical mirror is 50 μm, and the screen printing thickness of the decoration layer 12 is 4 μm.

Of course, in other embodiments, the plurality of cylindrical mirrors may be arranged without intervals, or may be irregularly arranged. The cross section of the cylindrical mirror is arch, triangle, quadrangle, polygon, etc. That is, the plurality of convex and/or concave structures of the texture surface are formed by UV glue embossing, can be set to almost any three-dimensional structure, and are transferred onto the UV glue layer by embossing and finally embodied on the decoration layer.

In other embodiments, the PET layer 10 and the UV glue layer 11 may be separable, i.e. the outer member 1 may not include the PET layer 10, so that the outer member 1 has an ultra-thin thickness, which may be suitable for situations where the thickness is particularly required.

In other embodiments, the decorative layer 12 may also be coated with a transparent protective layer for protecting the relief surface of the decorative layer 12.

In other embodiments, the carrier layer is only a PET layer, and the PET layer is laser etched with a plurality of protrusions or recesses.

In other embodiments, the UV glue layer is another curable glue layer that can be cured, such as a thermally cured glue layer.

In other embodiments, the PET layer may be a PC layer, a PE layer, a PMMC layer, or the like.

Referring to fig. 2, an appearance member 2 according to a second embodiment of the present invention includes a carrier layer and a decorative layer 22. The carrier layer comprises a PET layer 20, a UV glue layer 21 and an adhesive layer 23. And the two sides of the PET layer are respectively provided with a UV adhesive layer 21 and an adhesive layer 23. The UV adhesive layer 23 is printed with a plurality of protrusions 211, and the decoration layer 22 is silk-screened on the protrusions 211. The adhesive layer 23 is used to bond the appearance piece to the desired surface layer of the product, and the decorative layer 22 is textured on the opposite side relative to the UV glue layer 21.

Referring to fig. 3, an appearance member 3 according to a third embodiment of the present invention includes a carrier layer and a decorative layer 32. The carrier layer comprises a PET layer 30, a UV glue layer 31 and an adhesive layer 33. The UV glue layer 31 and the adhesive layer 33 are respectively disposed on both sides of the PET layer 30. The UV adhesive layer 33 is printed with a plurality of recesses 311, and the decoration layer 32 is silk-screened on the recesses 311. The adhesive layer 33 is used to bond the appearance piece to the desired surface layer of the product, and the decorative layer 32 is textured on the opposite side relative to the UV glue layer 31.

Referring to fig. 4, the present invention discloses a mobile phone rear cover 4. Which includes a see-through layer 41, an exterior member 2, and a battery module 42. The decorative layer 22 of the outer appearance member 2 is covered with a see-through layer 41, preferably a transparent glass layer, which is bonded to the decorative layer 22 by glue. The battery module 42 is bonded to the exterior member by the adhesive layer 23. The texture effect of the decorative layer can be seen through the transparent glass layer, and the decorative layer has color and a certain reflection effect.

In other embodiments, the appearance member is directly bonded to the battery module without being bonded to the transparent glass layer, thereby forming a battery assembly.

It should be understood that the above describes only some embodiments of the present invention and that various other changes and modifications may be affected therein by one of ordinary skill in the related art without departing from the scope or spirit of the invention.

Claims

1. An appearance element, characterized in that it comprises:

the decorative layer is a colored layer with the transmittance of less than 58%;

wherein the decorative layer externally displays a texture with visibility, and the fluctuation height difference delta h of the decorative layer is more than or equal to 0.5 mu m; the decorative layer comprises a plurality of bulges and/or low-voltage parts, and the width W of the bulges or the low-voltage parts is more than or equal to 1 mm; the decorative layer is a silk-screen printing ink layer, and the silk-screen printing thickness of the decorative layer is 2-6 mu m; the decorative layer is a colored ink layer doped with metal particles with a reflection effect.

2. The appearance element according to claim 1, characterized in that said bearing layer comprises a UV glue layer which is embossed with a texture structure provided with projections and/or recesses, said texture structure forming said textured surface.

3. The appearance element according to claim 2, wherein the carrier layer further comprises a PET layer, the UV glue layer overlying the PET layer.

4. The appearance element according to claim 2, wherein the texture structure comprises any one or a combination of two or more of lenticular lens, micro-lens, small stub, CD pattern, fresnel lens, moth-eye structure and wire-drawing pattern.

5. A mobile phone rear cover, characterized in that it comprises a perspective layer and the appearance piece of any one of claims 1 to 4 combined with the perspective layer, the decorative layer of the appearance piece is arranged on the perspective layer.

6. The mobile phone rear cover according to claim 5, further comprising a battery module, wherein the battery module is adhered to the other side of the bearing layer opposite to the decoration layer.

7. A battery pack comprising a battery module and the exterior member according to any one of claims 1 to 4 attached to the battery module.