CN111152586A - Housing, electronic device, and method for manufacturing housing - Google Patents
Housing, electronic device, and method for manufacturing housing Download PDFInfo
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- CN111152586A CN111152586A CN201911421154.7A CN201911421154A CN111152586A CN 111152586 A CN111152586 A CN 111152586A CN 201911421154 A CN201911421154 A CN 201911421154A CN 111152586 A CN111152586 A CN 111152586A
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- China
- Prior art keywords
- layer
- housing
- pigment carrier
- base material
- carrier layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/0082—Digital printing on bodies of particular shapes
- B41M5/0088—Digital printing on bodies of particular shapes by ink-jet printing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/243—Setting, e.g. drying, dehydrating or firing ceramic articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/003—Pressing by means acting upon the material via flexible mould wall parts, e.g. by means of inflatable cores, isostatic presses
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
- H05K5/0243—Mechanical details of casings for decorative purposes
Abstract
The application discloses casing, electronic equipment and manufacturing method of casing, and the manufacturing method of casing includes: providing a shell substrate with light transmission, wherein the shell substrate comprises an outer surface and an inner surface which are oppositely arranged; forming a pigment carrier layer having light transmittance on an inner surface of the case base material; ink-jet printing is performed on the pigment carrier layer so that the pigment carrier layer forms a color pattern layer. According to the manufacturing method of the shell, the pigment carrier layer is arranged on the inner surface of the shell base material, and the set color and the set pattern are formed on the pigment carrier layer by the ink-jet printing technology, so that the color pattern layer can be formed on the inner side of the shell base material, the appearance of the shell is improved, the shell with the color or the color and the pattern can be obtained by the manufacturing method, more complex patterns can be obtained, and the color pattern layer cannot be abraded in the long-term use process of the electronic equipment.
Description
Technical Field
The present disclosure relates to the field of electronic devices, and particularly, to a housing, an electronic device, and a method for manufacturing the housing.
Background
In the related art, in order to improve the appearance performance of the electronic device, a color layer, a pattern layer, and the like are generally disposed on a housing of the electronic device to obtain the effects of color, pattern, and the like. However, in the related art, the method for obtaining the color and pattern effect of the housing cannot obtain a complicated pattern effect, and some color pattern layers are easily worn during the long-term use of the electronic device due to the limitation of the arrangement position to affect the appearance performance of the electronic device.
Disclosure of Invention
The application provides a manufacturing method of a shell, the manufacturing method can obtain the shell with colors or colors with patterns at the same time, can obtain more complex patterns, and a color pattern layer can not be abraded in the long-term use process of the whole machine.
The application also provides a shell of the electronic equipment.
The application also provides the electronic equipment with the shell.
According to the manufacturing method of the shell of the electronic equipment of the embodiment of the first aspect of the application, the method comprises the following steps: providing a shell substrate with light transmission, wherein the shell substrate comprises an outer surface and an inner surface which are oppositely arranged; forming a pigment carrier layer having light transmittance on an inner surface of the housing base material; ink-jet printing on the pigment carrier layer such that the pigment carrier layer forms a color pattern layer.
According to the manufacturing method of the shell of the electronic equipment, the pigment carrier layer is arranged on the inner surface of the shell base material, and the set color and pattern are formed on the pigment carrier layer by the ink-jet printing technology, so that the color pattern layer can be formed on the inner side of the shell base material, the appearance of the shell is improved, the shell with colors or colors and patterns can be obtained by the manufacturing method, more complex patterns can be obtained, and the color pattern layer cannot be abraded in the long-term use process of the whole machine.
According to the second aspect of the application embodiment of the electronic equipment's casing, including: the light-transmitting shell substrate comprises an outer surface and an inner surface which are oppositely arranged; the color pattern layer comprises a pigment carrier layer with light transmittance and an ink layer formed on the surface of the pigment carrier layer far away from the shell base material, and the ink layer is printed on the pigment carrier layer through ink jet.
According to the shell of the electronic device, the pigment carrier layer is arranged on the inner surface of the shell base material, and the set color and pattern are formed on the pigment carrier layer by the ink-jet printing technology, so that the color pattern layer can be formed on the inner side of the shell base material, the appearance of the shell is improved, the shell can obtain more complex patterns by the ink-jet printing technology, and the color pattern layer cannot be abraded in the long-term use process of the electronic device.
An electronic device according to an embodiment of the third aspect of the present application includes: the housing of the electronic device according to the above-described second aspect of the present application.
According to the electronic equipment of the embodiment of the application, by arranging the shell, the appearance of the electronic equipment can obtain more complex patterns, and the color pattern layer can not be worn in the long-term use process of the electronic equipment.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a partial cross-sectional view of a housing according to some embodiments of the present application;
FIG. 2 is a flow chart of a method of manufacturing a housing according to some embodiments of the present application;
FIG. 3 is a flow chart of a method of manufacturing a housing according to other embodiments of the present application;
FIG. 4 is a flow chart of a method of manufacturing a housing substrate according to some embodiments of the present application;
FIG. 5 is a schematic view of an electronic device according to some embodiments of the present application.
Reference numerals:
an electronic device 100;
a housing 1;
a case base material 11;
a color pattern layer 12; a pigment carrier layer 121; an ink layer 122; pigment particles 1221;
a reflective layer 13; a transition layer 14; a substrate layer 15; an anti-fingerprint layer 16;
a display screen assembly 2.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
A method of manufacturing the housing 1 according to the embodiment of the present application is described below with reference to fig. 1 to 4. The housing 1 may serve as a housing of the electronic apparatus 100.
Referring to fig. 2 to 4 in combination with fig. 1, a method for manufacturing a housing 1 according to an embodiment of the first aspect of the present application includes:
providing a light-transmitting housing substrate 11, wherein the housing substrate 11 can transmit light, the housing substrate 11 can be a ceramic piece, a glass piece, a resin piece, or the like, the housing substrate 11 can be a 2D, 2.5D, or 3D molded structure, and the housing substrate 11 includes an outer surface and an inner surface that are oppositely disposed, where both "outer" and "inner" are relative to a center of a complete machine, such as the electronic device 100, and when the housing 1 is applied to the electronic device 100, the "outer" refers to a direction away from the center of the electronic device 100, and the "inner" refers to a direction adjacent to the center of the electronic device 100;
a pigment carrier layer 121 having light transmittance is formed on the inner surface of the housing base material 11, for example, the pigment carrier layer 121 may be a resin layer, for example, the pigment carrier layer 121 may be formed on the inner surface of the housing base material 11 by spraying a resin, so that the bonding strength between the pigment carrier layer 121 and the housing base material 11 may be improved, and at the same time, the formation of the pigment carrier layer 121 is facilitated;
the ink jet printing is performed on the pigment carrier layer 121, the ink can be sprayed on the pigment carrier layer 121 by using the ink jet printer, the pattern can be designed by using computer software, the ink with the set color (the ink can be a single color ink or a plurality of colors), and the jet head printing path is controlled by the motor of the ink jet printer, so that the set color, the pattern and the like can be formed on the pigment carrier layer 121, and the pigment carrier layer 121 forms the color pattern layer 12.
When the ink jet printer uses ink of a single color, the housing 1 can be made to obtain a single color, and by controlling the traveling speed of the head and the amount of ink discharged per unit time, the housing 1 having a single gradation can be formed; when the ink jet printer adopts ink with multiple colors, the shell 1 can have multiple color effects, and multiple gradient color effects of the shell 1 can be realized by controlling the traveling speed of the spray head and the ink output amount per unit time. And, through controlling the shower nozzle to walk according to setting for the print path, can obtain the setting pattern, can also obtain more complicated pattern at the same time.
Because the color pattern layer 12 is located on the inner side of the housing base material 11, not only the housing 1 can obtain abundant colors and pattern effects, but also the color pattern layer 12 is not worn away in the long-term use process of the electronic device 100, so that the appearance effect of the housing 1 can be kept good for a long time.
Moreover, the housing base material 11 is used as a main part of the housing 1, and the housing base material can be made of a material with high hardness and strength, so that the overall strength and hardness of the housing 1 can be ensured. Simultaneously, through set up pigment carrier layer 121 in addition on casing substrate 11, pigment carrier layer 121 can choose for use the material different with casing substrate 11 for the ink-jet printing can permeate to pigment carrier layer 121 in the pigment carrier layer 121 better on pigment carrier layer 121, can keep the permanence of colour, pattern better, also be favorable to the definition of the colour pattern layer that the casing appears.
The housing base material 11 has light transmittance, and the color pattern layer 12 located inside the housing base material 11 is visible from the exterior through the housing base material 11, so that the color pattern on the housing 1 is visible from the exterior. Wherein, the definition of the color pattern presented on the housing 1 can select the housing substrate 11 with different light transmission capabilities according to the requirement.
For example, the linear transmittance of the case substrate 11 may be greater than 4%. Therefore, the color pattern effect presented by the shell 1 can be clearer.
For example, the housing base material 11 has a total transmittance of not less than 30%. Therefore, the color pattern effect presented by the shell 1 can be clearer.
Or, the linear light transmittance of the housing 1 can be limited to be greater than 4% and the total light transmittance of the housing substrate 11 is not less than 30%, so that the color pattern effect presented by the housing 1 can be better ensured to be clearer.
According to the manufacturing method of the housing 1 of the electronic device of the embodiment of the application, the pigment carrier layer 121 is arranged on the inner surface of the housing base material 11, and the set color and pattern are formed on the pigment carrier layer 121 by using the ink jet printing technology, so that the color pattern layer 12 can be formed on the inner side of the housing base material 11, the appearance of the housing 1 is improved, the housing 1 with color or color and pattern can be obtained by the manufacturing method, more complex patterns can be obtained, and the color pattern layer 12 is not worn in the long-term use process of the whole machine.
According to some embodiments of the present application, the ink used for inkjet printing on the pigment carrier layer 121 is a heat curable ink or a light curable ink. Therefore, the ink can be conveniently solidified on the pigment carrier layer 121, the connection strength of the ink and the pigment carrier layer 121 is improved, and the risk that the ink falls off from the pigment carrier layer 121 is reduced.
For example, in some embodiments of the present application, referring to fig. 2, the ink used for inkjet printing on the pigment carrier layer 121 is a thermosetting ink, and after the printing is completed, the ink printed on the pigment carrier layer 121 may be baked for curing, for example, the baking temperature may be 100 to 150 ℃, and the baking time may be 30 to 120min, so that the ink is fixed on the pigment carrier layer 121 by thermosetting, and the color pattern formed by this way is clearer. The case base 11 and the pigment carrier layer 121 may be preheated before the pigment carrier layer 121 is subjected to inkjet printing. This accelerates the evaporation of the solvent in the ink, and prevents sagging of the ink printed on the pigment carrier layer 121 before the curing has not occurred. For example, when the case base material 11 has a 3D modeling structure, by preheating the case base material 11 and the pigment carrier layer 121 before the inkjet printing is performed on the pigment carrier layer 121, it is possible to better prevent the ink from sagging at the arc of the case base material 11, for example.
Alternatively, the preheating temperature for the case base material 11 and the pigment carrier layer 121 is 40 to 60 ℃. This can prevent sagging even more effectively, and also prevent the pigment carrier layer 121 from being deformed significantly during the ink-jet printing.
For another example, in another embodiment of the present application, referring to fig. 3, the ink used for the inkjet printing on the pigment carrier layer 121 is a photo-curable ink, for example, the ink may be a UV-type photo-curable ink, and the ink layer 122 formed on the pigment carrier by printing is photo-cured while the inkjet printing is performed on the pigment carrier layer 121, for example, the ink formed on the pigment carrier layer 121 by printing is photo-cured by a UV light source, for example, the curing energy may be 400 to 1500mJ/cm2The light intensity can be 1000-4000 mW. Through the mode of solidification while printing, easy operation can prevent to print the ink on pigment carrier layer 121 and take place the sagging, can raise the efficiency simultaneously.
According to some embodiments of the present application, referring to fig. 1 to 3, a reflective layer 13 is formed on a side of the color pattern layer 12 away from the housing substrate 11, and the reflective layer 13 may be an indium layer. Thus, the reflection rate can be increased by the reflective layer 13, for example, by about 20%, so that the color pattern displayed on the housing 1 can be clearer and more beautiful.
In some alternative embodiments of the present application, referring to fig. 1 to 3, before forming the reflective layer 13, a transition layer 14 is formed on a surface of the color pattern layer 12 away from the housing substrate 11, and the reflective layer 13 is formed on a surface of the transition layer 14 away from the housing substrate 11, where a material of the transition layer 14 is different from a material of the pigment carrier layer 121. Thus, by providing the transition layer 14 between the reflective layer 13 and the pigment carrier layer 121, the bonding force between the reflective layer 13 and the pigment carrier layer 121 can be improved.
For example, the pigment carrier layer 121 may be a PU resin layer and the transition layer 14 may be a UV resin layer. By providing the pigment carrier layer 121 as a PU resin layer, it is possible to make the bonding strength between the pigment carrier layer 121 and the housing base material 11 high, while the bonding strength between the UV resin layer and the reflective layer 13 is high relative to the bonding strength between the PU resin layer and the reflective layer 13, and therefore it is possible to improve the bonding strength between the pigment carrier layer 121 and the reflective layer 13 by providing the transition layer 14 between the pigment carrier layer 121 and the reflective layer 13.
For example, in some embodiments of the present application, referring to fig. 2, the manufacturing method of the housing 1 may include the steps of:
a10, providing a light-transmitting case substrate 11;
a20, forming a light-transmitting pigment carrier layer 121 on the inner surface of the case base material 11;
a30, preheating the case base material 11 and the pigment carrier layer 121;
a40, ink-jet printing on the pigment carrier layer 121;
a50, baking and curing the ink printed on the pigment carrier layer 121 to form the color pattern layer 12;
a60, forming a transition layer 14 on the surface of the color pattern layer 12 far away from the shell substrate 11;
a70, forming a reflecting layer 13 on the surface of the transition layer 14 far away from the shell substrate 11;
a80, forming a substrate layer 15 on the surface of the reflection layer 13 far from the case base material 11;
a90, forming an anti-fingerprint layer 16 on the outer surface of the case base material 11.
For another example, in other embodiments of the present application, referring to fig. 3, a method of manufacturing the housing 1 may include the steps of:
b10, providing a translucent housing base material 11;
b20, forming a light-transmitting pigment carrier layer 121 on the inner surface of the case base material 11;
b30, forming the color pattern layer 12 by photo-curing the ink printed on the pigment carrier layer 121 while the pigment carrier layer 121 is subjected to the ink jet printing;
b40, forming a transition layer 14 on the surface of the color pattern layer 12 far away from the shell substrate 11;
b50, forming a reflecting layer 13 on the surface of the transition layer 14 far away from the shell substrate 11;
b60, forming a substrate layer 15 on the surface of the reflection layer 13 far from the housing base material 11;
b70, forming an anti-fingerprint layer 16 on the outer surface of the case base material 11.
According to some embodiments of the present application, the housing substrate 11 may be a ceramic piece. Thereby, while the housing 1 has a rich appearance effect, the housing 1 can have characteristics of high hardness, high strength, and a feeling of being warm and moist like jade.
Next, a method for manufacturing the case base material 11 when the case base material 11 is a ceramic member will be described.
Referring to fig. 4, when the housing base material 11 is a ceramic member, the manufacturing method of the housing base material 11 includes the steps of:
preparing ceramic powder, for example, the main component of the ceramic powder can be zirconia powder, and the formed ceramic part is a zirconia ceramic part;
the ceramic powder is used for preparing a ceramic green body, for example, the ceramic green body can be obtained by adopting the existing forming method;
the ceramic green body is subjected to isostatic pressing treatment, so that the content of pores in the ceramic green body can be reduced, the content of pores in the sintered ceramic is reduced, and the strength and the light transmittance of the ceramic are improved;
degreasing and sintering the ceramic green body subjected to isostatic pressing treatment to obtain a ceramic sintered body;
and carrying out numerical control machining and polishing on the ceramic sintered blank to obtain the shell substrate 11 with smooth surface and good texture.
Optionally, in the step of isostatic pressing, the pressure P of the isostatic pressing satisfies: p is more than or equal to 100MPa and less than or equal to 250 MPa. When the pressure intensity of isostatic pressing is lower than 100MPa, the strength and the light transmittance of the ceramic are not facilitated; when the pressure intensity of isostatic pressing exceeds 250MPa, the ceramic strength and the light transmittance are not obviously improved, but the requirement on the pressure resistance of equipment is sharply improved. Thus, by setting the pressure P of the isostatic pressing within the above range, the housing base material 11 can be manufactured to have high strength and light transmittance, and at the same time, the requirements for equipment can be reduced, and the cost can be reduced.
Optionally, the medium used in the step of isostatic pressing is water, so that the medium use cost can be reduced and the medium is easy to obtain, and the temperature T of the isostatic pressing satisfies the following conditions: t is more than 0 ℃ and less than 100 ℃. Water freezes below 0 deg.C and boils above 100 deg.C, which is not easy to operate. Therefore, when the medium used in the isostatic pressing step is water, the operation can be facilitated and the molding quality can be ensured by setting the temperature T of the isostatic pressing within the above range.
Optionally, in the sintering step, the sintering temperature is 1400-1500 ℃, for example, the sintering temperature may be 1450 ℃, and the holding time may be 3-6h, for example, the holding time may be 4 h. The ceramic sintered compact obtained by the process parameters is characterized in that: the grain size is 600-1000 nm, the bending strength is more than 900MPa, so that the ceramic sintered blank has good mechanical property, and the high light transmittance can be ensured because the grain size is not too thin. Moreover, when the ceramic is zirconia ceramic, a proper amount of yttria is added into the ceramic, and sintering is carried out through the sintering process parameters, so that the tetragonal zirconia content in the obtained ceramic sintered blank is more than 98%, the stability of the ceramic sintered blank is facilitated, and cracking is not easy to occur in the processing process.
In the sintering step, if the sintering temperature is less than 1400 ℃ or the holding time is less than 3h, the grain size is less than 600nm, the grains are too fine, the grain boundaries are too large, the mechanical strength of the ceramic is favorably improved, but the light transmittance of the ceramic is not favorably improved (the grain boundaries cause light scattering). If the sintering temperature is more than 1500 ℃ or the heat preservation time is more than 6 hours, the grain size is more than 1000nm, which is beneficial to improving the light transmittance of the ceramic, but the grain is too coarse, which is not beneficial to the mechanical property of the ceramic.
Referring to fig. 1 in conjunction with fig. 2-4, a housing 1 of an electronic device according to a second aspect of the present application includes: the light-transmitting case substrate 11 and the color pattern layer 12 are provided.
The housing base material 11 has an outer surface and an inner surface which are oppositely arranged, the color pattern layer 12 includes a pigment carrier layer 121 having light transmittance and an ink layer 122 formed on a surface of the pigment carrier layer 121 which is away from the housing base material 11, and the ink layer 122 is printed onto the pigment carrier layer 121 by ink-jet. When the ink layer 122 is printed on the pigment carrier layer 121 by ink jet, ink can be sprayed on the pigment carrier layer 121 by an ink jet printer, a pattern can be designed by computer software, ink with a set color (which can be ink with a single color or ink with multiple colors) is adopted, and a nozzle printing path is controlled by a motor of the ink jet printer, so that the ink layer 122 with a set color and a set pattern can be formed on the pigment carrier layer 121, and the pigment carrier layer 121 forms the color pattern layer 12. In the ink layer 122, a part of the pigment particles 1221 penetrates into the pigment carrier layer 121, and another part remains in the ink layer 122.
When the ink jet printer uses ink of a single color, the housing 1 can be made to obtain a single color, and by controlling the traveling speed of the head and the amount of ink discharged per unit time, the housing 1 having a single gradation can be formed; when the ink-jet printer adopts the ink with various colors, the shell 1 can have the effect of various colors, and the effect of various gradual colors of the shell 1 can be realized by controlling the traveling speed of the spray head and the ink output amount per unit time. And, through controlling the shower nozzle to walk according to setting for the print path, can obtain the setting pattern, can also obtain more complicated pattern at the same time.
Because the color pattern layer 12 is located on the inner side of the housing base material 11, not only the housing 1 can obtain abundant colors and pattern effects, but also the color pattern layer 12 is not worn away in the long-term use process of the electronic device 100, so that the appearance effect of the housing 1 can be kept good for a long time.
The housing base material 11 has light transmittance, and the color pattern layer 12 located inside the housing base material 11 is visible from the exterior through the housing base material 11, so that the color pattern on the housing 1 is visible from the exterior. Wherein, the definition of the color pattern presented on the housing 1 can select the housing substrate 11 with different light transmission capabilities according to the requirement.
For example, the linear transmittance of the case substrate 11 may be greater than 4%. Therefore, the color pattern effect presented by the shell 1 can be clearer.
For example, the housing base material 11 has a total transmittance of not less than 30%. Therefore, the color pattern effect presented by the shell 1 can be clearer.
Or, it may also be defined that the linear transmittance of the housing 1 may be greater than 4% and the total transmittance of the housing substrate 11 is not less than 30%, so as to better ensure that the color pattern effect presented by the housing 1 is clearer.
According to the housing 1 of the electronic device of the embodiment of the application, the pigment carrier layer 121 is arranged on the inner surface of the housing base material 11, and the set color and pattern are formed on the pigment carrier layer 121 by using the inkjet printing technology, so that the color pattern layer 12 can be formed on the inner side of the housing base material 11, the appearance of the housing 1 is improved, the housing 1 can obtain a more complex pattern by using the inkjet printing technology, and the color pattern layer 12 is not worn during the long-term use of the electronic device 100.
According to some embodiments of the present application, the pigment carrier layer 121 is a PU resin layer or a UV resin layer. Thereby, it is possible to make the pigment carrier layer 121 and the case base material 11 have a high bonding strength.
Alternatively, when the pigment carrier layer 121 is a PU resin layer or a UV resin layer, the thickness d1 of the pigment carrier layer 121 ranges from 5 to 12 um. When the thickness of the pigment carrier layer 121 is less than 5um, it is not favorable to control the thickness of the ink layer 122 inkjet-printed on the pigment carrier layer 121 (the thickness of the pigment carrier layer 121 is too thin, the ink layer 122 is difficult to spray uniformly); the thickness of the pigment carrier layer 121 is higher than 12um, which is not favorable for the definition of the color, pattern, etc. presented by the housing 1.
According to some embodiments of the present application, referring to fig. 1, a reflective layer 13 is formed on a side of the color pattern layer 12 away from the housing substrate 11, and the reflective layer 13 may be an indium layer, so that the reflectivity can be improved by the reflective layer 13, for example, the reflectivity can be improved by about 20%, and thus the color pattern presented by the housing 1 can be clearer and brighter. The thickness d2 of the reflective layer 13 is in the range of 10-40 nm. This can significantly improve the reflectance, and is advantageous in reducing the overall thickness of the housing 1 and reducing the cost.
In an alternative embodiment of the present application, referring to fig. 1, a transition layer 14 is disposed between the reflective layer 13 and the color pattern layer 12, and the material of the transition layer 14 is different from that of the pigment carrier layer 121. Thus, by providing the transition layer 14 between the reflective layer 13 and the pigment carrier layer 121, the bonding force between the reflective layer 13 and the pigment carrier layer 121 can be improved.
Optionally, the thickness d3 of the transition layer 14 ranges from 10-20 um. Therefore, the high bonding strength between the reflecting layer 13 and the pigment carrier layer 121 can be ensured, and the finally presented reflecting effect can be promoted, and the overall thickness of the shell 1 can be reduced.
Alternatively, the pigment carrier layer 121 is a PU resin layer and the transition layer 14 is a UV resin layer. By providing the pigment carrier layer 121 as a PU resin layer, it is possible to make the bonding strength between the pigment carrier layer 121 and the housing base material 11 high, while the bonding strength between the UV resin layer and the reflective layer 13 is high relative to the bonding strength between the PU resin layer and the reflective layer 13, and therefore it is possible to improve the bonding strength between the pigment carrier layer 121 and the reflective layer 13 by providing the transition layer 14 between the pigment carrier layer 121 and the reflective layer 13.
According to some embodiments of the present application, referring to fig. 1, the side of the color pattern layer 12 away from the housing substrate 11 is formed with a substrate layer 15, the substrate layer 15 is a white topcoat layer, and the thickness d4 of the substrate layer 15 ranges from 15 um to 30 um. Substrate layer 15 through setting up can prevent to see through end (when casing 1 is applied to electronic equipment 100, can prevent to see the spare part structure in electronic equipment 100 from the outward appearance, promotes the aesthetic property), through setting up substrate layer 15 into white finish paint layer, can improve the reflectivity, makes the colour pattern more clear, bright. In addition, by setting the thickness of the substrate layer 15 within the above range, the penetration can be prevented well, and the overall thickness of the case 1 can be reduced advantageously.
According to some embodiments of the present application, referring to fig. 1, the outer surface of the case base material 11 is formed with an anti-fingerprint layer 16, thereby providing the outer surface of the case 1 with anti-fingerprint properties. The thickness d5 of the anti-fingerprint layer 16 is in the range of 5-20nm, thereby ensuring that the outer surface of the shell 1 has excellent anti-stain and anti-fingerprint properties, and being beneficial to reducing the overall thickness of the shell 1. Alternatively, the anti-fingerprint layer 16 has a water contact angle greater than 110 °, thereby providing the outer surface of the case 1 with excellent stain resistance.
Optionally, the outer surface of the housing substrate 11 may also form a LOGO layer.
According to some embodiments of the present application, the housing substrate 11 may be a ceramic piece. Thereby, while the housing 1 has a rich appearance effect, the housing 1 can have characteristics of high hardness, high strength, and a feeling of being warm and moist like jade.
Alternatively, when the case base material 11 is a ceramic member, the thickness d6 of the case base material 11 ranges from 0.2mm to 0.5 mm. When the thickness of the shell base material 11 is less than 0.2mm, the strength of the shell base material 11 is not enough, and the requirement of mechanical strength cannot be met; the thickness of the shell substrate 11 is greater than 0.5mm, the light transmittance is difficult to reach more than 4%, and the final color and pattern are difficult to clearly penetrate through the shell substrate 11. From this, through setting up the thickness of casing substrate 11 in above-mentioned within range, when guaranteeing that casing substrate 11 satisfies the mechanical strength demand, can guarantee that casing substrate 11 has higher luminousness to make casing 1 can present comparatively clear colour and pattern from the outward appearance.
In some optional embodiments of the present application, the housing base material 11 includes zirconium oxide, hafnium oxide, and yttrium oxide, wherein a mass ratio of the yttrium oxide is in a range of 5.0 to 8.0%. The hafnium oxide is a zirconium oxide symbiont, the properties of the hafnium oxide and the zirconium oxide are very close, the hafnium oxide is difficult to remove from the zirconium oxide, the yttrium oxide is a stabilizer, the tetragonal phase zirconium oxide can be prevented from being converted into monoclinic phase zirconium oxide in the ceramic sintering and processing processes, the yttrium oxide content is low, the stability of the ceramic is not facilitated, and the ceramic is easy to crack in the ceramic sintering and processing processes; too high a content of yttrium oxide is detrimental to the mechanical properties of the ceramic. Therefore, by setting the mass ratio of the yttrium oxide within the above range, the content of tetragonal zirconia in the formed ceramic can be increased, and the overall mechanical properties can be ensured to be good.
Further, the housing base material 11 further contains alumina, and the mass ratio of alumina is not more than 0.5%. Alumina is used as an additive, and the proper addition of the alumina is beneficial to improving the mechanical property of the ceramic, but can reduce the light transmittance of the ceramic. The mechanical property of the ceramic is not favorable when the content of the alumina is too low, the light transmittance of the ceramic is obviously reduced when the content of the alumina is too high, and the content of the alumina is not more than 0.5 percent because the ceramic has higher light transmittance requirement.
When the case base material 11 is a ceramic member, the following table 1 shows a comparison of various performance parameters of the case base material 11 and the case 1 obtained by adjusting the ceramic composition and the process parameters through a plurality of sets of tests by the above-described manufacturing method.
The test methods and equipment in table 1 below were:
light transmittance: a light transmittance tester with the wavelength range of 380-780 nm;
grain size: a scanning electron microscope;
bending strength: a universal testing machine refers to a GBT6569-2006 fine ceramic bending strength testing method.
Lab value: color difference meter (D65 mode).
TABLE 1 Process parameters and transmittance, intensity and color for ceramic parts as the shell substrate 11
As can be seen from the test data in table 1, when the thickness of the housing base material 11 and the material and thickness of the pigment carrier layer 121 are the same, the housing base material 11 with different mechanical properties and light transmittance can be obtained by adjusting the ceramic components and the manufacturing process parameters of the ceramic, and when the ink jet printing is performed on the pigment carrier layer 121 by using the same color ink, the housing 1 with the different housing base materials 11 can obtain the color difference from the appearance (the difference can be seen from the Lab values in the table, for example, the housing base material is red, but the red color is different types of red), so that more accurate and precise color can be obtained, and when the ink jet printing is performed on the pigment carrier layer 121 by using the different color inks, the housing 1 can be made to present the set color, so that the present color types are richer.
Also, as can be seen from table 1 above, the content of alumina in the ceramic composition affects the transmittance of the case base material 11 after molding, with other parameters being the same; the sintering temperature and the holding time have a great influence on the grain size, and the grain size influences the light transmittance and the bending strength.
An electronic device 100 according to an embodiment of the third aspect of the present application, comprises: the housing 1 of the electronic device according to the second aspect embodiment of the present application described above.
For example, referring to fig. 5, the electronic device 100 may include: the above-mentioned casing 1, display screen subassembly 2 and mainboard. The display screen assembly 2 is connected with the shell 1, and an installation space is defined between the display screen assembly 2 and the shell 1. The mainboard is established in installation space, and display screen subassembly 2 is connected with the mainboard electricity.
According to the electronic apparatus 100 of the embodiment of the application, by providing the housing 1 described above, it is possible to obtain a more complex pattern in the appearance of the electronic apparatus 100, and the color pattern layer 12 is not worn away during long-term use of the electronic apparatus 100.
The electronic device 100 of the present application may be, for example, any of various types of computer system devices that are mobile or portable and that perform wireless communications (only one modality shown in fig. 5 by way of example). Specifically, electronic device 100 may be a mobile or smart phone (e.g., an iPhone (TM) based, Android (TM) based phone), a Portable gaming device (e.g., a Nintendo DS (TM), PlayStation Portable (TM), Game Advance (TM), iPhone (TM)), a laptop, a PDA, a Portable Internet device, a music player and data storage device, other handheld devices and head-worn devices such as watches, in-ear headphones, pendant, headphones, etc., electronic device 100 may also be other wearable devices (e.g., a head-worn device (HMD) such as electronic glasses, electronic clothing, electronic bracelets, electronic necklaces, electronic tattoos, electronic device 100, or smart watches).
In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.
Claims (30)
1. A method of manufacturing a housing, comprising:
providing a shell substrate with light transmission, wherein the shell substrate comprises an outer surface and an inner surface which are oppositely arranged;
forming a pigment carrier layer having light transmittance on an inner surface of the housing base material;
ink-jet printing on the pigment carrier layer such that the pigment carrier layer forms a color pattern layer.
2. The method of manufacturing a housing according to claim 1, wherein the ink used for the inkjet printing is a heat-curable ink or a light-curable ink.
3. The method of manufacturing a housing according to claim 2, wherein the ink used for the inkjet printing is a heat-curable ink, and the housing base material and the pigment carrier layer are preheated before the inkjet printing is performed on the pigment carrier layer.
4. The method of manufacturing a housing according to claim 3, wherein the preheating temperature for the housing base material and the pigment carrier layer is 40 to 60 ℃.
5. The method of manufacturing a housing according to claim 2, wherein the ink used for the inkjet printing is a photo-curing ink, and the ink printed on the pigment carrier layer is photo-cured at the same time as the inkjet printing is performed on the pigment carrier layer.
6. The method of manufacturing a housing according to claim 1, wherein the pigment carrier layer is formed by spraying a resin on an inner surface of the housing base material.
7. The method of manufacturing a housing according to claim 1, wherein a reflective layer is formed on a side of the color pattern layer remote from the housing base material.
8. The method of claim 7, wherein a transition layer is formed on a surface of the color pattern layer remote from the housing base material before the reflective layer is formed, and the reflective layer is formed on a surface of the transition layer remote from the housing base material, and a material of the transition layer is different from a material of the pigment carrier layer.
9. The method of manufacturing a housing according to claim 8, wherein the pigment carrier layer is a PU resin layer and the transition layer is a UV resin layer.
10. The method of manufacturing a housing according to any one of claims 1 to 9, wherein the housing base material is a ceramic member.
11. The method of manufacturing a housing according to claim 10, wherein the method of manufacturing the housing base material comprises the steps of:
preparing ceramic powder;
preparing a ceramic green body by using the ceramic powder;
carrying out isostatic pressing treatment on the ceramic green body;
degreasing and sintering the ceramic green body subjected to isostatic pressing treatment to obtain a ceramic sintered body;
and carrying out numerical control machining and polishing on the ceramic sintered blank to obtain the shell base material.
12. The method of manufacturing a housing according to claim 11, wherein in the step of isostatic pressing, a pressure P of the isostatic pressing satisfies: p is more than or equal to 100MPa and less than or equal to 250 MPa.
13. The method of manufacturing a housing according to claim 11, wherein the medium used in the step of isostatic pressing is water, and the temperature T of isostatic pressing satisfies: t is more than 0 ℃ and less than 100 ℃.
14. The method as claimed in claim 11, wherein in the sintering step, the sintering temperature is 1400 ℃ and 1500 ℃, and the holding time is 3-6 h.
15. A housing for an electronic device, comprising:
the light-transmitting shell substrate comprises an outer surface and an inner surface which are oppositely arranged;
the color pattern layer comprises a pigment carrier layer with light transmittance and an ink layer formed on the surface of the pigment carrier layer far away from the shell base material, and the ink layer is printed on the pigment carrier layer through ink jet.
16. A housing for an electronic device according to claim 15, wherein the pigment carrier layer is a PU resin layer or a UV resin layer.
17. A housing for an electronic device according to claim 16, wherein the pigment carrier layer has a thickness in the range of 5-12 um.
18. The electronic device casing according to claim 15, wherein a reflective layer is formed on a side of the color pattern layer away from the casing substrate, and a thickness of the reflective layer is in a range of 10-40 nm.
19. The electronic device casing of claim 18, wherein a transition layer is disposed between the reflective layer and the color pattern layer, and the material of the transition layer is different from the material of the pigment carrier layer.
20. The electronic device case of claim 19, wherein the transition layer has a thickness in a range of 10-20 um.
21. A casing for an electronic device according to claim 19, wherein the pigment carrier layer is a PU resin layer and the transition layer is a UV resin layer.
22. The electronic device casing of claim 15, wherein a substrate layer is formed on one side of the color pattern layer away from the casing substrate, the substrate layer is a white finish paint layer, and the thickness of the substrate layer ranges from 15 um to 30 um.
23. The electronic device case according to claim 15, wherein an anti-fingerprint layer is formed on an outer surface of the case base material, and a thickness of the anti-fingerprint layer is in a range of 5 to 20 nm.
24. The electronic device housing of claim 15, wherein the housing substrate has a linear light transmittance of greater than 4%.
25. The electronic device casing according to claim 15, wherein the casing base material has a total light transmittance of not less than 30%.
26. The housing of any of claims 15-25, wherein the housing substrate is a ceramic piece.
27. The electronic device housing of claim 26, wherein the housing substrate has a thickness in the range of 0.2-0.5 mm.
28. The electronic device casing according to claim 26, wherein the casing base material comprises zirconium oxide, hafnium oxide, and yttrium oxide, wherein a mass ratio of the yttrium oxide is in a range of 5.0 to 8.0%.
29. The electronic device casing according to claim 28, wherein the casing base material further contains alumina, and a mass ratio of the alumina is not more than 0.5%.
30. An electronic device, comprising: a housing for an electronic device according to any of claims 15-29.
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