CN216356797U - Mobile phone rear cover, shell and electronic equipment - Google Patents

Abstract

The utility model discloses a mobile phone rear cover which comprises a composite board base material layer, a UV transfer printing layer and a liquid crystal film layer arranged between the composite board base material layer and the UV transfer printing layer. The utility model also discloses a shell comprising the mobile phone rear cover and electronic equipment comprising the shell. Compared with the prior art, beneficial effect lies in: carry out the UV rendition through setting up the liquid crystal film layer for the composite sheet can obtain about the gradual change colour effect about the liquid crystal film layer, and the texture effect on collocation UV rendition layer, the pleasing to the eye degree of lid behind improvement cell-phone that can be better, and the processing of liquid crystal film layer is more cheap simple simultaneously, can effectively reduce the manufacturing cost of lid behind the cell-phone.

Description

Mobile phone rear cover, shell and electronic equipment

[ technical field ] A method for producing a semiconductor device

The utility model relates to the technical field of electronic equipment shell processing, in particular to a mobile phone rear cover, a shell and electronic equipment.

[ background of the utility model ]

The mobile phone rear cover is a mobile phone appearance accessory arranged on the back surface of a mobile phone, and mainly plays roles of protection, decoration and the like, and along with the mature process technology of the composite board mobile phone rear cover, under the condition that the shape structure is basically close, the mobile phone shell with gorgeous color and gradual change effect is popular with consumers. In the prior art, in order to achieve the effect of color change, the composite board needs to be realized through UV transfer printing (also called UV printing, a foreign language name Ultra-violet, a printing process of drying and curing ink through ultraviolet light) and an electroplating process, however, the electroplating thickness needs to reach more than 200nm to have an obvious reflection effect, namely, the effect of color gradual change is achieved, the cost is high, and the yield is low.

In view of the above, it is desirable to provide a mobile phone rear cover to overcome the deficiencies of the prior art.

[ Utility model ] content

The utility model aims to provide a mobile phone rear cover, which aims to reduce the production cost of the mobile phone rear cover while enabling the mobile phone rear cover to have a gradient effect.

In order to achieve the above object, a first aspect of the present invention provides a mobile phone rear cover, which includes a composite board substrate layer, a UV transfer layer, and a liquid crystal film layer disposed between the composite board substrate layer and the UV transfer layer.

As an improvement of the mobile phone rear cover, the liquid crystal film layer is bonded with the composite board substrate layer into a whole through glue.

As an improvement of the mobile phone rear cover, the glue is coated on one side, close to the composite board substrate layer, of the liquid crystal film layer in a coating mode.

As an improvement of the mobile phone rear cover, the liquid crystal film layers on the mobile phone rear covers are formed by cutting the same liquid crystal film.

As an improvement of the mobile phone rear cover, the thickness of the liquid crystal film layer is 15-21 mu m.

As an improvement of the mobile phone rear cover, one side of the composite board substrate layer, which is far away from the liquid crystal film layer, forms a hardened layer through curtain coating.

The mobile phone rear cover further comprises an optical film layer and a cover bottom ink layer, wherein the optical film layer and the cover bottom ink layer are sequentially superposed on the UV transfer printing layer.

The utility model provides a shell, which comprises the mobile phone rear cover.

A third aspect of the present invention provides an electronic apparatus including the above-described housing.

Compared with the prior art, the mobile phone rear cover has the beneficial effects that: carry out the UV rendition through setting up the liquid crystal film layer for the composite sheet can obtain about the gradual change colour effect about the liquid crystal film layer, and the texture effect on collocation UV rendition layer, the pleasing to the eye degree of lid behind improvement cell-phone that can be better, and the processing of liquid crystal film layer is more cheap simple simultaneously, can effectively reduce the manufacturing cost of lid behind the cell-phone.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a sectional view of a rear cover of a mobile phone according to the present invention.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantageous effects of the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1, a first aspect of the present invention provides a mobile phone rear cover 100.

In an embodiment of the present invention, the rear cover 100 of the mobile phone includes a composite board substrate layer 10, a UV transfer layer 20, and a liquid crystal film layer 30 disposed between the composite board substrate layer 10 and the UV transfer layer 20. Wherein, liquid crystal film layer 30 itself has the effect of gradual change, and is concrete, and liquid crystal film layer 30 is openly seen no colour, but other angles can present different liquid crystal look effects according to the difference of angle, and UV rendition layer 20 can make 3D texture effect simultaneously, combines liquid crystal film layer 30 and UV rendition layer 20 just so that 3D texture effect has the effect of upper and lower gradual change and left and right gradual change.

Further, lid 100 still includes optics rete 40 and the end of the lid printing ink layer 50 behind the cell-phone, and optics rete 40 and the end of the lid printing ink layer 50 superpose in proper order on UV rendition layer 20, and wherein, optics rete 40 forms through electroplating and is used for the reflected light in order to play the effect of discolouing, and end of the lid printing ink layer 50 is used for richening the color. It can be understood that the thicker the thickness of the optical film layer 40, the better the light reflection effect, so that the dependence of the gradual color effect on the optical film layer 40 can be reduced by combining the gradual color effect of the liquid crystal film layer 30, and the thickness of the optical film layer 40 can also be reduced, thereby reducing the process requirement of the optical film layer 40, and further achieving the purposes of ensuring the gradual color effect and reducing the production cost.

Further, in order to ensure the connection firmness between the composite board substrate layer 10 and the liquid crystal film layer 30, the liquid crystal film layer 30 may be bonded with the composite board substrate layer 10 through glue 301. Specifically, the composite board substrate layer 10 may be made of a PMMA (acrylic) board, a PC (Polycarbonate) board, or a PET (Polyethylene terephthalate) board with good light transmittance; the liquid crystal film layer 30 can be made of a liquid crystal film with a thickness of 15-21 μm, that is, the thickness of the liquid crystal film layer 30 is 15-21 μm; glue 301 can select the photocuring to glue, and the photocuring is glued and must have the irradiation of ultraviolet ray just can solidify, and the speed of photocuring glue solidification can be fast or slow, has both made things convenient for manual work, makes things convenient for high-speed pipelining again, and the photocuring is glued and can be selected non-anaerobically simultaneously, has better insulating properties, anti-solvent property and temperature resistance after the photocuring is glued like this to carry out the UV rendition after liquid crystal film layer 30 and composite sheet substrate layer 10 bond an organic whole.

In this embodiment, the glue 301 is coated on the side of the liquid crystal film layer 30 close to the composite board substrate layer 10 by a coating method, and the liquid crystal film layers 30 on the rear covers of the mobile phones are formed by slitting the same liquid crystal film. It can be understood that in the actual operation process, a rolled liquid crystal film is firstly put into coating equipment to coat the glue 301 on the liquid crystal film, then a plurality of composite board substrates are sequentially adhered to the area where the liquid crystal film is coated, and then a plurality of mobile phone rear covers to be subjected to UV transfer printing are formed through cutting and photocuring.

Further, a hardened layer 101 is formed on one side of the composite board substrate layer 10 away from the liquid crystal film layer 30 by curtain coating, and the hardened layer 101 serves as the outer surface of the mobile phone rear cover 100 and plays a role in scratch resistance.

The mobile phone rear cover 100 provided by the utility model is processed according to the following steps,

step S1, putting a rolled liquid crystal film on a coating device, coating the glue 301 on the liquid crystal film, then sequentially adhering a plurality of composite board substrates on the area where the liquid crystal film is coated, and then forming a plurality of mobile phone rear covers to be subjected to UV transfer printing through slitting and photocuring.

Step S2, forming a UV transfer layer 20 on the liquid crystal film layer 30 of the back cover of the mobile phone to be UV transferred by means of UV transfer.

In step S3, the optical film layer 40 is formed on the UV transfer layer 20 by electroplating.

Step S4, forming the bottom-covering ink layer 50 on the optical film layer 40 by silk-screen printing.

Step S5, performing curtain coating on the side of the composite board substrate layer 10 away from the liquid crystal film layer 30 to form the stiffening layer 101.

In summary, the mobile phone rear cover 100 provided by the utility model performs UV transfer printing by arranging the liquid crystal film layer 30, so that the composite board can obtain a gradient color effect from top to bottom and from left to right through the liquid crystal film layer 30, and then the composite board can better improve the aesthetic property of the mobile phone rear cover 100 by matching with the texture effect of the UV transfer printing layer 20, and meanwhile, the processing of the liquid crystal film layer 30 is cheaper and simpler, and the production cost of the mobile phone rear cover 100 can be effectively reduced.

The second aspect of the present invention provides a housing, which adopts the mobile phone rear cover 100 in any of the above embodiments, and it can be understood that the housing, after adopting the mobile phone rear cover 100, is more beautiful and has lower cost, and the principle and reason thereof refer to the above description of the mobile phone rear cover 100, and are not described herein again.

A third aspect of the present invention provides an electronic device, where a housing of the electronic device is the housing in the foregoing embodiment, so that the electronic device not only has a gorgeous housing, but also has a lower production cost.

The utility model is not limited solely to that described in the specification and embodiments, and additional advantages and modifications will readily occur to those skilled in the art, so that the utility model is not limited to the specific details, representative apparatus, and illustrative examples shown and described herein, without departing from the spirit and scope of the general concept as defined by the appended claims and their equivalents.

Claims (9)

1. The utility model provides a lid behind cell-phone which characterized in that, is in including composite sheet substrate layer, UV rendition layer and setting the composite sheet substrate layer with liquid crystal film layer between the UV rendition layer.

2. The mobile phone rear cover according to claim 1, wherein the liquid crystal film layer is bonded with the composite board substrate layer into a whole through glue.

3. The mobile phone rear cover according to claim 2, wherein the glue is coated on one side of the liquid crystal film layer close to the composite board substrate layer by means of coating.

4. The mobile phone back cover of claim 3, wherein the liquid crystal film layers on the mobile phone back covers are formed by cutting the same liquid crystal film.

5. The mobile phone rear cover according to claim 1, wherein the thickness of the liquid crystal film layer is 15-21 μm.

6. The mobile phone rear cover according to claim 1, wherein a hardened layer is formed on one side of the composite board substrate layer, which is away from the liquid crystal film layer, by curtain coating.

7. The mobile phone rear cover according to claim 1, further comprising an optical film layer and a cover bottom ink layer, wherein the optical film layer and the cover bottom ink layer are sequentially superimposed on the UV transfer layer.

8. A case comprising the handset back cover of any one of claims 1 to 7.

9. An electronic device characterized by comprising the housing of claim 8.

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