CN109968899B

CN109968899B - Shell, terminal and shell processing method

Info

Publication number: CN109968899B
Application number: CN201910249825.XA
Authority: CN
Inventors: 张维; 林四亮
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2019-03-29
Filing date: 2019-03-29
Publication date: 2022-06-03
Anticipated expiration: 2039-03-29
Also published as: CN109968899A

Abstract

The invention provides a shell, a terminal and a shell processing method, and relates to the technical field of terminals. The housing, comprising: the first side of the shell is provided with a plurality of bulges, and each bulge is provided with a plurality of grooves which are vertically and horizontally arranged; the first side of the shell is covered with an optical coating, and the optical coating is covered with printing ink. By means of the scheme, the shell color can be changed along with the change of the visual angle of the user, and the user experience is improved.

Description

Shell, terminal and shell processing method

Technical Field

The invention relates to the technical field of terminals, in particular to a shell, a terminal and a shell processing method.

Background

After a long period of monochrome age, consumers have become bored with monotonous colors, and some consumers who are moving forward in the trend gradually accept new color modes, and gradual colors become popular with the consumers.

The gradient is a color fusion and brings fresh feeling to consumers, but the common printing gradient is fixed and unchangeable, and the visual fatigue is slowly generated after the printing is carried out for a long time.

Disclosure of Invention

The embodiment of the invention provides a shell, a terminal and a shell processing method, and aims to solve the problems that the existing gradient setting mode causes visual fatigue of a user and influences user experience because the gradient is fixed and can not be changed.

In order to solve the technical problem, the invention is realized as follows:

in a first aspect, an embodiment of the present invention provides an enclosure, including:

the first side of the shell is provided with a plurality of bulges, and each bulge is provided with a plurality of grooves which are vertically and horizontally arranged;

the first side of the shell is covered with an optical coating, and the optical coating is covered with printing ink.

In a second aspect, an embodiment of the present invention further provides a terminal, including the above-mentioned housing.

In a third aspect, an embodiment of the present invention further provides a housing processing method, including:

providing a PET (polyethylene terephthalate) sheet made of polyterephthalic acid plastic, wherein a plurality of bulges are arranged on one side of the PET sheet, and a plurality of grooves which are arranged in a longitudinal and transverse mode are arranged on each bulge;

carrying out optical coating on one side of the PET sheet provided with the protrusions;

printing ink on the optical coating;

and cutting the PET sheet printed with the ink to obtain the shell with a preset shape.

In the embodiment of the invention, the plurality of bulges are arranged on the shell, and the plurality of grooves which are arranged vertically and horizontally are arranged on each bulge, so that light rays can be diffracted to emit light with different colors through different grooves, and the problems of single shell color and visual fatigue of a user are avoided.

Drawings

FIG. 1 shows one of the schematic structural views of a housing according to an embodiment of the present invention;

FIG. 2 is a second schematic view of the housing according to the embodiment of the present invention;

fig. 3 is a schematic flow chart of a housing processing method according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.

As shown in fig. 1, an embodiment of the present invention provides a housing, including:

the electronic device comprises a shell 100, wherein a plurality of protrusions 110 are arranged on a first side of the shell 100, and a plurality of grooves 111 which are arranged in a longitudinal and transverse mode are arranged on each protrusion 110;

the first side of the housing 100 is covered with an optical coating 200, which is covered with ink 300.

As further shown in fig. 2, the plurality of protrusions 110 are uniformly distributed on the housing at equal intervals, for example, when the housing is specifically configured, the interval between the protrusions is 400 nm, and the protrusions are arranged horizontally and vertically on the housing 100, so that the final effect is substantially consistent from the top, bottom, left and right.

Further, the size of each protrusion is the same, and in particular, the length and width of each protrusion 110 are set to 400 nm. Each protrusion 110 is further provided with grooves 111 arranged in a longitudinal and transverse direction, for example, the vertical and horizontal lines on the protrusion 110 in fig. 2 represent grooves, and when setting, the protrusion 110 is usually provided with 100 × 100 grooves, that is, 100 transverse grooves, and 100 longitudinal grooves, each groove representing 1 light diffraction slit.

The existing theory is as follows: from the perspective of front view, the distance is 200 nanometers, and the diffracted light is blue; the distance is 400 nanometers, and the diffracted light is green; the distance is 600 nanometers, and the diffracted light is red; because the housing 100 of the embodiment of the present invention has two types of slits, namely: the gaps of 400 nanometers between the protrusions and the gaps smaller than 400 nanometers arranged in each protrusion allow light to pass through the gaps with different sizes through different incident angles and diffract a plurality of colors, so that a user can see different colors at different angles, and the user can see the colorful effect of the shell.

In order to enhance the reflection of light, the plurality of protrusions need to be covered with an optical coating, and in order to increase the metal texture when the light is reflected, the optical coating is usually configured as a metal coating, and specifically, the optical coating sequentially includes, from the position close to the housing to the position far away from the housing: titanium dioxide (TiO)₂) Layer, silicon dioxide (SiO)₂) A layer, a titanium dioxide layer; this arrangement is achieved by separating the two layers of titanium dioxide with silicon dioxide.

Specifically, the thickness of both titanium dioxide layers is 168.2 nanometers, and the thickness of the silicon dioxide layer is 143.3 nanometers.

It should be noted that, in the embodiment of the present invention, the metal texture can be effectively enhanced by using a multi-layer metal plating manner.

Further, since the housing has a function of shielding the internal components of the terminal, the optical coating film is covered with ink, and the thickness of the ink is usually 21 to 27 μm in order to prevent the ink from falling off and not to increase the thickness of the housing excessively.

It should be noted that, by arranging the plurality of protrusions on the shell, and arranging the plurality of grooves which are vertically and horizontally arranged on each protrusion, light can be diffracted to emit light with different colors through different grooves, so that the problems of single shell color and visual fatigue of a user can be solved.

The embodiment of the invention also provides a terminal which comprises the shell.

It should be noted here that the housing includes two sides, the first side is provided with a plurality of protrusions, each protrusion is provided with a plurality of grooves arranged vertically and horizontally, and covers the optical coating and the ink; the second side is not provided with any structure, after the shell is arranged on the terminal, the second side of the shell is exposed outside the terminal, a user can directly contact the second side, and the first side of the shell is positioned inside the terminal and cannot be touched by the user.

The terminal provided with the housing can change the color of the housing of the terminal along with the change of the visual angle of a user, thereby improving the user experience.

As shown in fig. 3, an embodiment of the present invention further provides a housing processing method, including:

step 301, providing a PET sheet made of poly (p-phenylene terephthamide) plastic, wherein a plurality of bulges are arranged on one side of the PET sheet, and a plurality of grooves which are arranged in a longitudinal and transverse mode are arranged on each bulge;

302, performing optical coating on one side of the PET sheet provided with the protrusions;

step 303, printing ink on the optical coating;

and step 304, cutting the PET sheet printed with the ink to obtain a shell with a preset shape.

It should also be noted here that the length and width of each protrusion are 400 nm, and the interval between the protrusions is 400 nm.

It should be further noted that, the specific implementation manner of step 301 is:

3011, making a photoresist mold;

it should be noted that a plurality of cells are arranged on the first side of the photoresist mold, and a plurality of lines arranged vertically and horizontally are arranged on each cell;

because of the photosensitive resist has the advantage of easy sculpture, so utilize the photosensitive resist can be comparatively easy produce with the corresponding line of PET sheet, specifically, the projection on the cell correspondence PET sheet on the photosensitive resist mould, the lines of arranging with great ease correspond the recess of arranging with great ease on the PET sheet.

3012, manufacturing a nickel mold according to the photoresist mold;

because the photosensitive resist mould is easy to scratch and is not easy to store, a reusable mould needs to be manufactured, and in the embodiment of the invention, a nickel mould is manufactured by copying metal nickel;

the specific implementation manner of the step is as follows: and electroplating silver on the surface of the photoresist mould provided with the unit grids, and depositing nickel on the silver coating to obtain the nickel mould.

Specifically, the thickness of the electroplated silver is usually 10 nm, after the electroplating of the silver, the power is applied, the silver-plated photoresist mold is placed in a solution with nickel ions, and a corresponding nickel mold is formed through conversion and deposition of the nickel ions.

3013, transferring the nickel pattern to a PET sheet by using an ultraviolet adhesive, so that one side of the PET sheet has a plurality of protrusions, and each protrusion has a plurality of grooves arranged vertically and horizontally;

after the nickel mold is obtained, because the texture of the nickel mold is the mirror image of the texture on the photoresist mold, after the texture of the nickel mold is transferred to the PET sheet by using the ultraviolet photoresist, the texture on the PET sheet can be consistent with the texture on the photoresist mold.

The specific implementation process of the step comprises the following steps: through ultraviolet transfer machine, the line with the nickel mould is rendition on the PET sheet is glued to the application ultraviolet, and the illumination solidification specifically, the scope of illumination energy is: 800 millijoules (mj) to 1100 mj.

It should be further noted that the optical coating sequentially includes, from the position close to the protrusion to the position far from the protrusion: a titanium dioxide layer, a silicon dioxide layer and a titanium dioxide layer;

wherein the thickness of the titanium dioxide layer is 168.2 nanometers, and the thickness of the silicon dioxide layer is 143.3 nanometers.

It should be noted that the specific implementation process of step 302 is as follows: under the vacuum condition, the titanium dioxide target material and the silicon dioxide target material are respectively dissolved by directly heating or indirectly heating (the temperature is 60-70 ℃), then evaporated (or directly sublimated into gas from solid), atoms or molecules with enough energy are obtained under the action of glow discharge and fly to and deposit on the surface of the PET sheet material, and a certain number of layers and thickness of metal film layers are deposited, so that the PET sheet material has strong metal reflection texture.

Further, the specific implementation manner of step 303 is: carrying out three times of ink printing on the optical coating, wherein the three times of ink printing refers to firstly carrying out the first time of ink printing, the thickness of the ink is 7-9 microns, and then baking, wherein the baking temperature is 80 ℃ (the error range is 0-5 ℃), and the baking time is 30 minutes; then printing ink for the second time, wherein the thickness of the ink is 7-9 microns, and then baking at 80 ℃ (error range is 0-5 ℃) for 30 minutes; and finally, printing the ink for the third time, wherein the thickness of the ink is 7-9 microns, and then baking for 30 minutes at the baking temperature of 80 ℃ (the error range is 0-5 ℃).

It should be noted that, this arrangement can effectively prevent the ink from falling off without increasing the thickness of the casing too much.

After the PET sheet sprayed with the ink is obtained, the PET sheet is cut according to the size and the shape of the shell required to be used, and the shell with the corresponding shape can be obtained.

Through the processing mode, the shell reflecting different colors along with the change of the visual angle of the user can be obtained, and when the shell is applied to the terminal, the use experience of the user on the terminal can be improved.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.

Claims

1. An enclosure, comprising:

the light diffraction grating comprises a shell, wherein a plurality of bulges are arranged on the first side of the shell, a plurality of grooves which are vertically and horizontally arranged are arranged on each bulge, the bulges are uniformly distributed on the shell at equal intervals, the sizes of the bulges are equal, each groove represents 1 light diffraction slit, the gaps of the light diffraction slits are less than 400 nanometers, the length and the width of each bulge are 400 nanometers, and the intervals between the bulges are 400 nanometers;

2. The housing of claim 1, wherein the optical coating sequentially comprises, from near to far from the housing: titanium dioxide layer, silica dioxide layer, titanium dioxide layer.

3. The housing of claim 1, wherein the ink has a thickness of 21 to 27 microns.

4. A terminal, characterized in that it comprises a housing according to any one of claims 1 to 3.

5. A method of housing processing, comprising:

providing a PET (polyethylene terephthalate) sheet made of poly terephthalic acid plastic, arranging a plurality of bulges on one side of the PET sheet, arranging a plurality of grooves which are distributed vertically and horizontally on each bulge, uniformly distributing the bulges at equal intervals, enabling the sizes of the bulges to be equal, enabling each groove to represent 1 light diffraction slit, enabling the gap of each light diffraction slit to be smaller than 400 nanometers, enabling the length and the width of each bulge to be 400 nanometers, and enabling the interval between the bulges to be 400 nanometers;

printing ink on the optical coating;

6. The housing processing method according to claim 5, wherein the providing a plurality of protrusions on one side of the PET sheet, each protrusion having a plurality of grooves arranged in a longitudinal and transverse direction, comprises:

manufacturing a photoresist mould, wherein a plurality of unit cells are arranged on the first side of the photoresist mould, and a plurality of lines which are arranged vertically and horizontally are arranged on each unit cell;

manufacturing a nickel mold according to the photosensitive resist mold;

and transferring the nickel pattern texture onto the PET sheet by using ultraviolet glue, so that one side of the PET sheet is provided with a plurality of bulges, and each bulge is provided with a plurality of grooves which are vertically and horizontally arranged.

7. The method for processing the shell according to claim 6, wherein the step of manufacturing the nickel mold according to the photoresist mold comprises:

electroplating silver on the surface of the photoresist mould provided with the unit grids;

and carrying out nickel deposition on the silver plating layer to obtain the nickel mold.