CN107734113A - Curved surface cover plate and preparation method thereof, mobile terminal - Google Patents

Abstract

The invention discloses a curved cover plate, a preparation method thereof, and a mobile terminal. According to an embodiment of the present invention, the curved cover plate includes: a main body part, the main body part is formed of glass or ceramics; a plurality of arc surface edge parts, and the plurality of arc surface edge parts are symmetrically arranged on the main body part , the curved edge portion is formed of a resin material. Therefore, the curved cover plate has at least one of the following advantages: improved scratch resistance, improved processability, improved product yield, reduced cost, the curved edge can protect the main body, and the user experience effect is improved. At the same time, it has both functionality and appearance, and can meet the design requirements of 2.5D or 3D.

Description

Curved cover plate, preparation method thereof, and mobile terminal

technical field

The invention relates to the field of plate processing, in particular to a curved cover plate, a preparation method thereof, and a mobile terminal.

Background technique

The protective cover or rear cover of the mobile terminal can not only protect the mobile terminal, but also its appearance design can directly reflect the appearance of the mobile terminal, so as to meet people's needs for functional use and aesthetic pursuit. In order to meet people's higher appearance requirements and personalization trends for mobile terminals, the protective cover or rear cover of the mobile terminal is also developing from a single 2D plane design to a 2.5D and 3D design with a curved surface structure. Moreover, with the development of processing technology, materials such as curved glass, sapphire, and ceramics are also used to prepare a cover plate with a curved structure.

However, the current curved cover plate, its preparation method, and mobile terminal still need to be improved.

Contents of the invention

The present invention is based on the inventor's discovery and recognition of the following facts and problems:

The inventors found that the current protective cover or rear cover of mobile terminals, especially the curved cover, generally has the problems of easy damage, short service life, poor mechanical properties, single material used, and poor appearance. After in-depth research and a large number of experiments, the inventor found that the current curved cover (protective cover or rear cover) of mobile terminals is generally made of two types of materials: glass (or sapphire, ceramics) with a curved structure and resin with a curved structure. Realize the appearance effect of 2.5D or 3D, but the above-mentioned cover plate is usually made of a single type of material, and then processed through injection molding, CNC, hot bending and other processes. Therefore, on the one hand, the above-mentioned process limits the types of materials, and only a single material can be used to form the cover plate; It is extremely difficult to process, and the formed cover plate is easy to break when dropped, resulting in poor user experience; when using a single resin, because the material is soft and low in hardness, although its machinability is good, it is conducive to processing and molding, but the formed cover When the board is used and pressed in the mobile terminal, it is easy to cause the screen and battery to be squeezed and invalidated, and the 3D (or 2.5D) cover is easy to scratch during use, which further deteriorates the display effect of the screen and affects the appearance. In short, using a single material to integrally form the cover, the hardness and machinability of the material cannot be combined, resulting in that the functionality and appearance of the cover cannot be combined, and it cannot meet people's higher appearance requirements and individuality for mobile terminals. trend.

The present invention aims to alleviate or solve at least one of the above-mentioned problems, at least to some extent.

In one aspect of the invention, the invention provides a curved cover plate. According to an embodiment of the present invention, the curved cover plate includes: a main body part, the main body part is formed of glass or ceramics; a plurality of arc surface edge parts, and the plurality of arc surface edge parts are symmetrically arranged on the main body part , the curved edge portion is formed of a resin material. Therefore, the curved cover plate has at least one of the following advantages: improved scratch resistance, improved processability, improved product yield, reduced cost, the curved edge can protect the main body, and the user experience effect is improved. It has both functionality and appearance, and can meet the requirements of 2.5D or 3D appearance design.

In yet another aspect of the present invention, the present invention provides a method for preparing a curved cover plate. According to an embodiment of the present invention, the method includes: providing a main body part, the main body part is formed of glass or ceramics; a plurality of arc-shaped edge parts are provided on the edge of the main body part, and the plurality of arc-surface edge parts It is arranged symmetrically along the main body part, and the arc edge part is formed of resin material. The curved cover plate prepared by this method may be the curved cover plate described above, thus, it may have all the features and advantages of the curved cover plate described above, which will not be repeated here. In general, the curved cover plate prepared by this method has at least one of the following advantages: the machinability of the curved edge is improved, the product yield is improved, and the cost is reduced; the soft curved edge can protect the main body , the user experience effect is improved, and it has both functionality and appearance effect, which can meet the design requirements of 2.5D or 3D.

In still another aspect of the present invention, the present invention provides a mobile terminal. According to an embodiment of the present invention, the mobile terminal includes the aforementioned curved cover. Therefore, the mobile terminal can have all the features and advantages of the curved cover described above, which will not be repeated here. In general, the mobile terminal can have at least one of the following advantages: improved product yield, reduced processing costs, soft curved edges can protect the main body, improved user experience, and functional With the appearance effect, it can meet the design requirements of 2.5D or 3D.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and comprehensible from the description of the embodiments in conjunction with the following drawings, wherein:

FIG. 1 shows a schematic structural view of a curved cover plate according to an embodiment of the present invention;

Figure 2 shows a schematic structural view of a curved cover plate according to an embodiment of the present invention;

FIG. 3 shows a schematic structural view of a curved cover plate according to another embodiment of the present invention;

FIG. 4 shows a schematic structural view of a curved cover plate according to yet another embodiment of the present invention;

FIG. 5 shows a schematic flow chart of a method for preparing a curved cover plate according to an embodiment of the present invention;

Figure 6 shows a schematic flow chart of a method for preparing a curved cover plate according to another embodiment of the present invention; and

Fig. 7 shows a schematic structural diagram of a mobile terminal according to an embodiment of the present invention.

Explanation of reference signs:

100: main body; 200: arc edge; 210: arc; 300: side frame; 1000: mobile terminal.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

In one aspect of the invention, the invention provides a curved cover plate. According to an embodiment of the present invention, referring to FIG. 1 , the board includes: a main body portion 100 and an arc edge portion 200 . According to an embodiment of the present invention, the arc edge portion 200 is symmetrically disposed on the edge of the main body portion 100 . The side surface of the arc edge portion close to the upper surface of the main body is an arc surface, and the arc surface extends away from the upper surface (direction A as shown in FIG. 1 ). According to an embodiment of the present invention, the curved edge portion 200 is formed of a resin material and is designed separately from the main body 100 , that is, the curved edge portion 200 and the main body 100 are not integrally formed. The specific number of arc edge portions is not particularly limited, for example, there may be four arc edge portions arranged around the main body portion, or two arc edge portions arranged symmetrically along the main body portion.

Therefore, the curved cover plate has at least one of the following advantages: improved scratch resistance, improved drop resistance, improved processability, improved product yield, reduced cost, the curved edge can protect the main body, and the user The experience effect is improved, and it has both functionality and appearance effect, which can meet the design requirements of 2.5D or 3D.

In order to facilitate understanding, the following is a detailed description of the principle of the plate to achieve the above technical effects:

As mentioned above, a single material is generally used to form a curved cover in one piece. The hardness and machinability of the material cannot be achieved at the same time. As a result, the function and appearance of the curved cover cannot be combined in actual use. For example, when a single glass (or sapphire, ceramic) is used, the processability is poor, and it is easy to break when dropped; while when a single resin material is used, it is easy to scratch, and it is easy to cause problems such as extrusion failure of the screen and battery. The inventor unexpectedly found that the curved cover originally formed of a single material (which can be subsequently formed into a protective cover or rear cover of a mobile terminal) is composited with two materials, for example, the main body of the curved cover is made of glass (or sapphire, ceramics), and the curved edge is formed of resin material, thus, the curved cover has good strength and hardness, the machinability is significantly improved, and the cost is greatly reduced. The formed curved cover The board can improve the shortcomings of the existing 2.5D or 3D screen protection cover and rear cover, which are weak in strength, easy to break, easy to scratch, and high in cost. Among them, the curved cover is used to form the battery back cover or screen protection cover of the mobile terminal, and glass (or sapphire, ceramics) is used as the main body of the plate, which ensures hardness, improves scratch resistance, and at the same time has small deformation when pressed , to prevent the extrusion failure of the screen and battery; at the same time, the curved edge is formed by a resin material with low softness and hardness. For example, it can be used as a 3D (or 2.5D) protective cover or the main curved surface of the rear cover. The ease of processing of the material can reduce the processing cost of the curved surface. At the same time, the curved edge formed by the resin material can be directly assembled with the main body during assembly, which can protect the main body and improve the anti-drop performance. All in all, the curved cover takes into account the advantages of high hardness of glass (or sapphire, ceramic) and easy processing of resin material, while avoiding the fragility and difficulty of processing of glass (or sapphire, ceramic) and the soft and easy processing of resin material. The disadvantage of scratching.

For the convenience of understanding, each structure of the board is described in detail below:

According to an embodiment of the present invention, the main body 100 is a plane or an arc surface, that is, the surface B of the main body 100 shown in FIG. Appearance effect; or the surface B can be a curved surface (not shown in the figure), thereby forming a 3D appearance effect with the curved surface 210 . The selection of the plane or the curved surface of the main body 100 can easily realize the design requirements of 2.5D or 3D, and further improve the performance of the curved surface cover.

According to the embodiment of the present invention, the type of specific material forming the main body part 100 is not particularly limited, and those skilled in the art can select according to actual needs. For example, according to an embodiment of the present invention, the body part 100 may be formed of at least one of glass, sapphire, ceramics, metal, and wood. Therefore, the main body 100 of the curved cover plate has high hardness, is not easy to be scratched, is not easy to break, can improve the display effect, has small deformation, and prevents the screen or battery of the mobile terminal from being crushed and invalidated. According to the embodiment of the present invention, the specific type of the resin material forming the curved edge portion 200 is not particularly limited, as long as the curved edge 200 is formed of a resin material.

According to the embodiment of the present invention, the specific manner of connecting the main body portion and the arc surface edge portion is not particularly limited, and those skilled in the art can select according to actual needs. For example, according to an embodiment of the present invention, the main body and the arc edge may be connected by at least one of water glue bonding, double-sided tape bonding, melting and solidification, and direct injection molding. For example, specifically, the method of melting and solidification can be adopted. Firstly, it is beneficial to include but not limited to laser scanning processing, etc., to melt the resin material at the contact point between the edge of the arc surface and the main body. After the resin material is re-solidified, The arc edge can be connected with the main body. In this way, the main body can be easily connected with the arc edge, and the performance of the board can be further improved.

According to an embodiment of the present invention, referring to FIGS. 2-4 , the curved cover plate further includes a side frame 300 . According to an embodiment of the present invention, referring to FIG. 3 and FIG. 4 (sectional view of the curved cover), the side frame 300 is perpendicular to the main body 100 of the panel and connected to the curved edge 200 . According to the embodiment of the present invention, the specific material forming the side frame is not particularly limited, and those skilled in the art can select according to actual needs. For example, according to an embodiment of the present invention, the side frame may be formed of at least one of resin, ceramics, metal, and wood. Thus, the performance of the curved cover plate can be further improved. According to an embodiment of the present invention, the surface of the side frame 300 near the arc surface 210 of the arc edge portion 200 (surface C as shown in FIG. 4 ) may be a plane or an arc. According to an embodiment of the present invention, when the surface C of the side frame is an arc surface, the surface C extends perpendicular to the direction of the main body 100 (direction A as shown in FIG. 4 ), thereby forming a closer relationship with the arc surface 210. A uniform arc appearance; or the surface C can be a plane (not shown in the figure).

According to the embodiment of the present invention, the specific manner of connecting the arc edge portion 200 to the side frame 300 is not particularly limited, and those skilled in the art can select according to actual needs. For example, according to the embodiment of the present invention, the curved edge portion 200 and the side frame 300 are connected by at least one of water glue bonding, double-sided tape bonding, melting and solidification, and direct injection molding. In this way, the curved edge can be easily connected to the side frame, further improving the performance of the curved cover. According to an embodiment of the present invention, in order to further improve the performance of the curved cover plate, the side frame 300 may further include a groove (not shown in the figure), so that the groove formed in the side frame 300 can be aligned with the curved surface The edge portion 200 is tightly bonded.

According to an embodiment of the present invention, the curved cover may be a screen protection cover or a battery back cover of a mobile terminal.

In yet another aspect of the present invention, the present invention provides a method for preparing a curved cover plate. The curved cover plate prepared by this method may be the curved cover plate described above, thus, it may have all the features and advantages of the curved cover plate described above, which will not be repeated here. According to an embodiment of the present invention, referring to FIG. 5, the method includes:

S100: Provide the main part

In this step, a main body portion is provided. According to an embodiment of the present invention, the specific material for forming the main body part may be the same as the material for forming the main body part described above, which will not be repeated here. According to the embodiment of the present invention, the composition material of the main body, the selection of the plane or the arc surface for the main body has been described in detail above, and will not be repeated here.

S200: Setting the arc edge

In this step, a plurality of arc-shaped edge portions are arranged on the edge of the main body, and the plurality of arc-surface edge portions are arranged symmetrically along the main body, and the arc-surface edge portions are formed of a resin material.

According to the embodiment of the present invention, the specific manner of connecting the arc edge portion and the main body portion is not particularly limited, and those skilled in the art can select according to actual needs. For example, according to an embodiment of the present invention, the curved edge portion and the main body are connected by at least one of water glue bonding, double-sided tape bonding, melting and solidification, and direct injection molding. For example, specifically, melting and solidification can be adopted. Firstly, it is beneficial to include but not limited to laser scanning processing to melt the resin material at the contact point between the edge of the arc surface and the main body. After the resin material is re-solidified, the edge of the arc surface The part can be connected with the main part. Thus, the arc surface edge portion can be easily connected with the main body portion, further improving the performance of the housing.

In order to further improve the performance of the shell prepared by the method, referring to Fig. 6, the method further includes:

S300: Setting side borders

In this step, a side frame is provided at an end of the arc edge part away from the main part, and the side frame is arranged perpendicular to the main part. Thus, the performance of the curved cover plate can be further improved. According to the embodiment of the present invention, the specific material forming the side frame is not particularly limited, and those skilled in the art can select according to actual needs. For example, according to an embodiment of the present invention, the side frame may be formed of at least one of resin, ceramics, metal, and wood. Thus, the performance of the curved cover plate can be further improved. According to the embodiment of the present invention, the specific manner of connecting the arc edge portion to the side frame is not particularly limited, and those skilled in the art can select according to actual needs. For example, according to an embodiment of the present invention, the curved edge portion and the side frame are connected by at least one of water glue bonding, double-sided tape bonding, melting and solidification, and direct injection molding. In this way, the arc surface edge can be easily connected with the side frame, further improving the performance of the casing. According to the embodiment of the present invention, the composition material of the side frame, the choice of plane or arc surface for the side frame has been described in detail above, and will not be repeated here.

In general, the curved cover plate prepared by this method has at least one of the following advantages: the machinability of the edge of the arc surface is improved, the product yield is improved, the cost is reduced, and the edge of the arc surface with soft material can protect In the main part, the user experience effect is improved, and it has both functionality and appearance effect, which can meet the design requirements of 2.5D or 3D.

In still another aspect of the present invention, the present invention provides a mobile terminal. According to an embodiment of the present invention, the mobile terminal includes the aforementioned curved cover. Therefore, the mobile terminal can have all the features and advantages of the curved cover described above, which will not be repeated here. In general, the mobile terminal can have at least one of the following advantages: improved product yield, reduced processing costs, soft curved edges can protect the main body, improved user experience, and functional With the appearance effect, it can meet the design requirements of 2.5D or 3D.

According to an embodiment of the present invention, the curved cover may be a protective cover or a rear cover of the mobile terminal. Specifically, the housing can be a screen protection cover, thereby protecting the screen of the mobile terminal, or, referring to FIG. Being extruded and deformed, the performance of the mobile terminal is further improved.

In the description of the present invention, the orientations or positional relationships indicated by the terms "upper", "lower" and the like are based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and do not require that the present invention must be based on a specific Azimuth configuration and operation, therefore, should not be construed as limiting the invention.

In the description of this specification, description with reference to the terms "one embodiment", "another embodiment", etc. means that a particular feature, structure, material, or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention . In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other. In addition, it should be noted that in this specification, the terms "first" and "second" are used for description purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, those skilled in the art can make the above-mentioned The embodiments are subject to changes, modifications, substitutions and variations.

Claims (15)

1. A curved cover plate, characterized in that, comprising: a main body, the main body is formed of glass or ceramics; A plurality of arc edge portions are symmetrically arranged on the main body portion, and the arc edge portions are formed of a resin material. 2 . The curved cover plate according to claim 1 , wherein the upper surface of the main body is a plane or an arc. 3 . 3. The curved cover plate according to claim 1, characterized in that, the surface of the side of the arc edge portion close to the upper surface of the main body is an arc surface, and the arc surface is far away from the upper surface Extended on one side. 4. The curved cover plate according to claim 1, wherein the main body and the curved edge are at least one of water glue bonding, double-sided adhesive bonding, melting and solidification, and direct injection molding way to connect. 5. The curved cover plate according to claim 1, further comprising: A side frame, the side frame is perpendicular to the main body of the board and connected to the arc edge. 6. The curved cover plate according to claim 5, wherein the side frame is formed of at least one of resin, ceramics, metal and wood. 7. The curved cover plate according to claim 5, wherein the curved surface edge and the side frame are bonded by water glue, double-sided adhesive tape, melting and solidification, and direct injection molding. connected in a way. 8. The curved cover plate according to claim 5, characterized in that, the outer surface of the side frame is a plane or an arc surface. 9. The curved cover according to claim 1, wherein the curved cover is a battery rear cover or a display screen protection cover. 10. A method for preparing a curved cover plate, comprising: providing a body portion formed of glass or ceramic; A plurality of arc edge portions are disposed on the edge of the main body, the plurality of arc edge portions are symmetrically arranged along the main body, and the arc edge portions are formed of a resin material. 11. The method according to claim 10, characterized in that, the curved edge portion is arranged on the main body portion by at least one of water glue bonding, double-sided tape bonding, melt solidification and direct injection molding of. 12. The method of claim 10, further comprising: A side frame is provided at an end of the arc edge portion away from the main body, and the side frame is arranged perpendicular to the main body. 13. The method of claim 12, wherein the side frame is formed of at least one of resin, ceramic, metal and wood. 14. The method according to claim 12, characterized in that, the curved surface edge and the side frame are bonded by water glue, double-sided adhesive tape, melting and solidification, and direct injection molding. to connect. 15. A mobile terminal, characterized in that it comprises: The curved cover plate according to any one of claims 1-9.