WO2019134132A1 - Cover plate, method for manufacturing cover plate, and electronic apparatus - Google Patents

Abstract

A cover plate (100), a method for manufacturing the cover plate (100), and an electronic apparatus (200). The cover plate (100) comprises: a substrate (10), a bonding layer (20), a base material layer (30), a first texture layer (40) and an ink layer (60), wherein the substrate (10) comprises a first surface (11) and a second surface (12), which are opposite each other; a second texture layer (13) is formed on the second surface (12); and the bonding layer (20), the base material layer (30), the first texture layer (40), a plating layer (50) and the ink layer (60) are sequentially disposed on the first surface (11).

Description

Cover plate, cover plate manufacturing method and electronic device Technical field

The present invention relates to the field of display technologies, and in particular, to a cover, a cover, and an electronic device.

Background technique

The existing mobile phone can see the image of the deformed image in the display area of the mobile phone through the edge position of the mobile phone (for example, the non-display area of the mobile phone), and thus the visual effect of the edge position of the mobile phone is poor, resulting in poor user experience. .

Summary of the invention

Embodiments of the present invention provide a cover, a cover, and an electronic device.

The cover plate of the embodiment of the present invention includes a substrate, an adhesive layer, a substrate layer, a first texture layer and an ink layer, the substrate includes a first surface and a second surface opposite to each other, and the second surface is formed with a second surface a texture layer, the bonding layer, the substrate layer, the first texture layer, and the ink layer are sequentially disposed on the first surface. The cover plate of the embodiment of the present invention interferes by forming a second texture layer on the second surface of the substrate and providing a first texture layer on the first surface to allow light to pass through the first texture layer and/or the second texture layer. So that users can see the colorful visual effects and enhance the user experience.

In some embodiments, the second texture layer is formed on an edge of the substrate, and the first texture layer, the second texture layer, and the ink layer are correspondingly disposed. When the light irradiated on the coating layer and the ink layer is reflected by the coating layer and the ink layer and transmitted to the first texture layer, the light interferes on the surface of the first texture layer, and the light is transmitted to the second texture layer in the second texture. A second interference occurs on the surface of the layer, so that the user on the side of the second surface can see the more colorful patterns exhibited by the coating layer and the ink layer through the second texture layer and the first texture layer.

In some embodiments, the cover plate further includes a coating layer between the first textured layer and the ink layer. By providing a coating layer, when the light irradiated on the coating layer is reflected by the coating layer and transmitted to the first texture layer, the light interferes on the surface of the first texture layer, and the light is transmitted to the second texture layer in the second texture layer. A second interference occurs on the surface, so that the user on the side of the second surface can see the more colorful pattern exhibited by the coating layer through the second texture layer and the first texture layer.

In some embodiments, an edge of the second surface is formed with a circular arc surface, and the second textured layer is formed on the circular arc surface. Since the divergence angle when the light passes through the second texture layer formed on the circular arc surface is larger than the divergence angle when the light rays pass through the second texture layer formed on the plane, the user on the side of the second surface can be wider See the colorful visual effects within the angle range.

In some embodiments, the substrate includes a central portion at a center of the substrate and a bent portion surrounding the central portion, the bent portion being bent toward a side of the first surface with respect to the central portion The second texture layer is formed on the bent portion. Since the divergence angle when the light passes through the second texture layer formed on the bent portion is larger than the divergence angle when the light passes through the second texture layer formed at the center portion, the user on the side of the second surface can be wider See the colorful visual effects within the angle range.

In some embodiments, the second texture layer is formed over the second surface, the first texture layer being formed over the entire substrate layer and corresponding to the second texture layer. In this way, the entire cover can produce a colorful visual effect.

In some embodiments, the second texture layer is formed on the entire second surface, and the first texture layer and the ink layer are both formed on an edge of the substrate layer, the first texture A layer is formed on the substrate layer and corresponds to the ink layer. In this way, the entire cover can produce a colorful visual effect, and the edge position corresponding to the first texture layer can produce a more colorful visual effect.

In some embodiments, the second surface includes a plane at the center of the substrate and a circular arc surface surrounding the plane, the second texture layer being formed on the plane. In this way, a colorful visual effect can be produced in the middle of the cover.

In some embodiments, the second texture layer includes a plurality of textures spaced apart, a plurality of the textures being equally spaced on the second surface. The equal spacing of the plurality of textures facilitates the fabrication of the second texture layer, while the second texture layer produces a more uniform visual effect.

In some embodiments, the second texture layer includes a plurality of textures spaced apart, a plurality of the textures being unequally formed on the second surface. In this way, the second texture layer can produce a gradual colorful effect.

In some embodiments, the second texture layer comprises a plurality of textures arranged at intervals, wherein at least two textures of different widths exist in the plurality of textures, and the distance between any two adjacent textures is the same. In this way, the second texture layer can produce a gradual colorful effect.

In some embodiments, the second texture layer comprises a plurality of protrusions, and a depression is formed between two adjacent protrusions, the protrusions having a height of 5 μm to 200 μm and a width of the protrusions of 20 μm- 200 μm. When the protrusion of the second texture layer has the above-mentioned size, the light on the side of the first surface may exhibit an apparent visual effect when it passes through the surface of the second texture layer, and has a significant attraction to the user.

In some embodiments, the protrusions have a height of from 10 μm to 100 μm and the protrusions have a width of from 50 μm to 100 μm. When the protrusion of the second texture layer has the above-mentioned size, the light on the side of the first surface may exhibit an apparent visual effect when it passes through the surface of the second texture layer, and has a significant attraction to the user.

In some embodiments, the cross-sectional shape of the protrusion is a rectangle, and the distance between two adjacent protrusions is 5 μm - 100 μm. When the protrusion of the second texture layer has the above shape and size, the light on the side of the first surface may exhibit an apparent visual effect when it passes through the surface of the second texture layer, and has a significant attraction to the user. force.

In some embodiments, the spacing between adjacent two of the protrusions is from 10 [mu]m to 50 [mu]m. When the protrusion of the second texture layer has the above-mentioned size, the light on the side of the first surface may exhibit an apparent visual effect when it passes through the surface of the second texture layer, and has a significant attraction to the user.

In some embodiments, the convex cross-sectional shape is triangular or arcuate, the bottoms of any two adjacent ones of the protrusions are adjacent, or the bottoms of two adjacent protrusions are spaced apart by a distance of 5 μm to 100 μm. When the protrusion of the second texture layer has the above shape and size, the light on the side of the first surface may exhibit an apparent visual effect when it passes through the surface of the second texture layer, and has a significant attraction to the user. force.

In some embodiments, when the cross-sectional shape of the protrusion is a triangle, the triangle has a corresponding tip angle of 30°-150°. When the protrusion of the second texture layer has the above shape and size, the light on the side of the first surface may exhibit an apparent visual effect when it passes through the surface of the second texture layer, and has a significant attraction to the user. force.

In some embodiments, when the cross-sectional shape of the protrusion is arcuate, the arcuate arc corresponds to a central angle of 30°-150°. When the protrusion of the second texture layer has the above shape and size, the light on the side of the first surface may exhibit an apparent visual effect when it passes through the surface of the second texture layer, and has a significant attraction to the user. force.

In some embodiments, when the cross-sectional shape of the protrusion is a triangle, the triangle has a corresponding tip angle of 45°-120°. When the protrusion of the second texture layer has the above shape and size, the light on the side of the first surface may exhibit an apparent visual effect when it passes through the surface of the second texture layer, and has a significant attraction to the user. force.

In some embodiments, when the cross-sectional shape of the protrusion is arcuate, the arcuate arc corresponds to a central angle of 45°-120°. When the protrusion of the second texture layer has the above shape and size, the light on the side of the first surface may exhibit an apparent visual effect when it passes through the surface of the second texture layer, and has a significant attraction to the user. force.

In some embodiments, the convex cross-sectional shape is triangular or arcuate, and the bottom of the adjacent two of the protrusions is spaced apart by a distance of 10 μm to 50 μm. When the protrusion of the second texture layer has the above shape and size, the light on the side of the first surface may exhibit an apparent visual effect when it passes through the surface of the second texture layer, and has a significant attraction to the user. force.

In some embodiments, the protrusion and the recess extend to form a pattern that is wavy, mesh-crossed, or wire-drawn. As such, the second texture layer is easy to make.

In certain embodiments, the cover plate further includes a hardened layer disposed between the bonding layer and the substrate layer. Since the hardened layer is provided on the substrate layer, the deformation resistance of the entire decorative film is enhanced, thereby preventing the decorative film from being deformed during the process of attaching to the substrate and subsequent processing.

In certain embodiments, the hardened layer is a polyurethane coating, an inorganic nanoceramic coating, or a radiation cured coating. Since the hardened layer is provided on the substrate layer, the deformation resistance of the entire decorative film is improved, thereby preventing the decorative film from being deformed during the process of attaching to the substrate and subsequent processing; and the above coating is convenient for formation. On the substrate layer.

An electronic device according to an embodiment of the present invention includes a body and a cover plate according to any one of the above embodiments. The body includes opposing front and back faces. The cover plate is disposed on the front side and/or the back side. According to an embodiment of the present invention, an electronic device interferes by forming a second texture layer on a second surface of the substrate and providing a first texture layer on the first surface to cause light to pass through the first texture layer and/or the second texture layer. Users can see the colorful visual effects and enhance the user experience.

A manufacturing method of a cover plate according to an embodiment of the present invention, the manufacturing comprising: providing a substrate, the substrate comprising opposite first and second surfaces, the second surface being formed with a second texture layer; providing a decoration a film, the decorative film includes a substrate layer, a first texture layer, and an ink layer disposed in sequence; the decorative film is bonded to the substrate by an adhesive layer, and the bonding layer is disposed on the film Between a surface and the substrate layer. The cover plate of the embodiment of the present invention causes interference by forming a second texture layer on the second surface of the substrate and providing a first texture layer on the first surface, so that light passes through the first texture layer and/or the second texture layer, thereby Users can see the colorful visual effects and enhance the user experience.

In some embodiments, the step of providing a substrate comprises: providing a substrate, the substrate comprising the first surface and the second surface opposite to each other; and coating a photoresist layer on the second surface Exposing and developing the photoresist layer to form a texture pattern; etching the substrate to obtain the second texture layer; removing the photo group layer to obtain the substrate. The equipment required for the above production method is easily available, and thus it is easy to manufacture.

The additional aspects and advantages of the embodiments of the present invention will be set forth in part in the description which follows.

DRAWINGS

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from

1-10 are cross-sectional views of a cover plate in accordance with some embodiments of the present invention;

Figure 11 is a plan view of a cover plate according to some embodiments of the present invention;

12-13 are cross-sectional views of a substrate in accordance with some embodiments of the present invention;

14-18 are schematic plan views of a second texture layer in accordance with some embodiments of the present invention;

19 is a schematic plan view of a substrate layer and a first texture layer in accordance with some embodiments of the present invention;

20-21 are cross-sectional views of a substrate layer and a first texture layer in accordance with some embodiments of the present invention;

22-26 are schematic plan views of a first texture layer of some embodiments of the present invention;

Figure 27 is a cross-sectional view of a cover plate in accordance with some embodiments of the present invention;

28 is a plan view of an electronic device according to some embodiments of the present invention; and

29-30 are schematic flow charts of a method of fabricating a cover plate according to some embodiments of the present invention.

Detailed ways

The embodiments of the present invention are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are intended to be illustrative of the invention and are not to be construed as limiting.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientations of "post", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of the description of the present invention and the simplified description, and is not intended to indicate or imply that the device or component referred to has a specific orientation, and is constructed and operated in a specific orientation. Therefore, it should not be construed as limiting the invention. Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" or "second" may include one or more of the described features either explicitly or implicitly. In the description of the present invention, the meaning of "a plurality" is two or more unless specifically and specifically defined otherwise.

In the description of the present invention, it should be noted that the terms "installation", "connected", and "connected" are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; may be mechanically connected, may be electrically connected or may communicate with each other; may be directly connected, or may be indirectly connected through an intermediate medium, may be internal communication of two elements or interaction of two elements relationship. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

In the present invention, the first feature "on" or "under" the second feature may include direct contact of the first and second features, and may also include first and second features, unless otherwise specifically defined and defined. It is not in direct contact but through additional features between them. Moreover, the first feature "above", "above" and "above" the second feature includes the first feature directly above and above the second feature, or merely indicating that the first feature level is higher than the second feature. The first feature "below", "below" and "below" the second feature includes the first feature directly below and below the second feature, or merely the first feature level being less than the second feature.

The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and arrangements of the specific examples are described below. Of course, they are merely examples and are not intended to limit the invention. In addition, the present invention may be repeated with reference to the numerals and/or reference numerals in the various examples, which are for the purpose of simplicity and clarity, and do not indicate the relationship between the various embodiments and/or arrangements discussed. Moreover, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the use of other processes and/or the use of other materials.

Referring to FIG. 1 , a cover plate 100 according to an embodiment of the present invention includes a substrate 10 , an adhesive layer 20 , a substrate layer 30 , a first texture layer 40 , a coating layer 50 , and an ink layer 60 . The substrate 10 includes a first surface 11 and a second surface 12 opposite to each other, and the second surface 12 is formed with a second texture layer 13. The bonding layer 20, the substrate layer 30, the first texture layer 40, the plating layer 50, and the ink layer 60 are sequentially disposed on the first surface 11.

The substrate 10 may be a planar sheet-like structure (as shown in FIG. 1); or the intermediate position of the substrate 10 is a planar sheet-like structure, and the edge 101 of the substrate 10 is formed with a circular arc surface 102 (as shown in FIG. 2). Or, the intermediate position of the substrate 10 is a sheet-like structure of a plane or a circular arc surface, and the edge 101 of the substrate 10 is bent toward the first surface 11 (as shown in FIG. 3). The second texture layer 13 may be formed on the entire second surface 12 (as shown in FIG. 4); or, the second texture layer 13 may be formed on the two opposite substrate edges 101 of the substrate 10 (as shown in FIG. 1); Alternatively, the second texture layer 13 may also be formed on the peripheral substrate edge 101 of the substrate 10. The first texture layer 40 and the second texture layer 13 are each formed by UV exposure. The second texture layer 13 is composed of a plurality of substrate textures 132 that are spaced apart, and the substrate texture 132 may be protrusions 132. The cross-section of the substrate texture 132 along the second surface 12 may be rectangular, triangular, arcuate, trapezoidal, polygonal, or the like. The first texture layer 40 may be formed on the entire substrate layer 30 (as shown in FIG. 4); alternatively, the first texture layer 40 may be formed on the two opposite substrate edges 301 of the substrate 30 (as shown in FIG. 1). Alternatively, the first texture layer 40 may also be formed on the substrate edge 301 around the substrate 30. The first texture layer 40 is comprised of a plurality of spaced apart decorative textures 42 that may be decorative protrusions 42. The cross section of the decorative texture 42 perpendicular to the second surface 12 may be in the shape of a rectangle, a triangle, an arch, a trapezoid, a polygon, or the like. The substrate 10, the second texture layer 13, and the first texture layer 40 are all transparent. The coating layer 50 and the ink layer 60 are both disposed on the first texture layer 40, and both the coating layer 50 and the ink layer 60 are opaque.

The projected area of the first texture layer 40 on the first surface 11 may coincide with the projected area of the second texture layer 13 on the first surface 11 (as shown in FIG. 1); or the first texture layer 40 may be on the first surface The projected area on the eleven and the projected area of the second texture layer 13 on the first surface 11 intersect each other (as shown in FIG. 7); or, the projected area of the first texture layer 40 on the first surface 11 and the second texture The projected areas of layer 13 on first surface 11 are offset from one another (as shown in Figure 8).

Referring to FIG. 7 and FIG. 8 , when the first texture layer 40 is not present at a position corresponding to the second texture layer 13 of the base material layer 30, the light rays on the side of the first surface 11 pass through the second texture layer 13 . Interference occurs when the surface is on, so that the user on the side of the second surface 12 can see the colorful effect of the pattern on the side of the first surface 11 through the first texture layer 40.

Referring to FIG. 7 and FIG. 8 , when the second texture layer 13 is not present at the position corresponding to the first texture layer 40 of the second surface 12 , the light irradiated on the coating layer 50 and the ink layer 60 passes through the coating layer 50 and the ink. When the layer 60 is reflected and transmitted to the first texture layer 40, the light interferes with the surface of the first texture layer 40, so that the user on the side of the second surface 12 can see the coating layer 50 through the first texture layer 40 and The colorful pattern presented by the ink layer 60.

Referring to FIG. 1 and FIG. 4, when the projected area of the first texture layer 40 on the first surface 11 and the projected area of the second texture layer 13 on the first surface 11 have overlapping areas, the corresponding substrate texture in the overlapping area 132 is disposed corresponding to the decorative texture 42 . When the light irradiated on the coating layer 50 and the ink layer 60 is reflected by the coating layer 50 and the ink layer 60 and transmitted to the first texture layer 40 , the light interferes on the surface of the first texture layer 40 . When the light is transmitted to the second texture layer 13, a second interference occurs on the surface of the second texture layer 13, so that the user on the side of the second surface 12 can see through the second texture layer 13 and the first texture layer 40. The brighter pattern is exhibited by the coating layer 50 and the ink layer 60. The substrate texture 132 is disposed corresponding to the decorative texture 42 . It can be understood that the substrate protrusion 132 is disposed corresponding to the decorative protrusion 42 ; or the substrate protrusion 132 is corresponding to the decorative recess 44 between the adjacent two decorative protrusions 42 . .

The cover plate 100 of the embodiment of the present invention forms a second texture layer 13 on the second surface 12 of the substrate 10, and provides a first texture layer 40 on the first surface 11 to pass light through the first texture layer 40 and/or the second. The texture layer 13 interferes, so that the user can see the colorful visual effects and enhance the user experience.

Referring to FIG. 1 , a cover plate 100 according to an embodiment of the present invention includes a substrate 10 , an adhesive layer 20 , a substrate layer 30 , a first texture layer 40 , a coating layer 50 , and an ink layer 60 . The bonding layer 20, the substrate layer 30, the first texture layer 40, the plating layer 50, and the ink layer 60 collectively constitute the decorative film 106.

The substrate 10 includes a first surface 11 and a second surface 12 opposite to each other, and the second surface 12 is formed with a second texture layer 13. The substrate 10 is made of a light transmissive material, and thus the second texture layer 13 also has light transmitting properties. The second texture layer 13 may be formed on the two opposite substrate edges 101 of the substrate 10. The second texture layer 13 is composed of a plurality of substrate textures 132 disposed at intervals. The substrate texture 132 may be a protrusion 132, and a recess 134 is formed between any two adjacent protrusions 132. The cross-section of the substrate texture 132 along the second surface 12 may be rectangular, triangular, arcuate, trapezoidal, polygonal, or the like. The substrate 10 has a planar sheet-like structure, and the plane of the substrate 10 may be a rectangle, a triangle, a circle, a pentagon, a hexagon, or the like. The substrate 10 may be composed of polymethylMethacrylate (PMMA), polycarbonate (Polycarbonate, PC), polyethylene terephthalate (PET), Cyclo Olefin Polymers (COP). Made of any of the materials. In other embodiments, the second texture layer 13 may also be formed on one, three, four or the entire substrate edge 101 of the substrate 10. Referring to FIG. 28, when the cover 100 is mounted on the side of the display 201 of the electronic device 200, the second texture layer 13 may also be disposed at a position corresponding to the non-display area 203 of the display 201.

The bonding layer 20 is provided on the first surface 11 of the substrate 10. The shape and size of the bonding layer 20 are matched with the shape and size of the substrate 10. For example, the shape of the bonding layer 20 is the same as the shape of the substrate 10, and the size of the bonding layer 20 and the size of the substrate 10 are the same. equal. The bonding layer 20 is used to bond the decorative film 106 to the first surface 11. The bonding layer 20 can be a transparent optical glue.

The substrate layer 30 is disposed on a side of the bonding layer 20 remote from the substrate 10. The shape and size of the substrate layer 30 are matched to the shape and size of the substrate 10. The substrate layer 30 may be composed of polymethylmethyacrylate (PMMA), polycarbonate (PC), polyethylene terephthalate (PET), cycloolefin polymer (Cyclo Olefin Polymers, COP). Made of any of the materials.

The first texture layer 40 is formed on a side of the substrate layer 30 that is away from the bonding layer 20. Specifically, the first texture layer 40 is formed on the substrate edge 301 of the substrate layer 30. The first texture layer 40 is disposed corresponding to the second texture layer 13, that is, the projected area of the first texture layer 40 on the second surface 12 coincides with the projected area of the second texture layer 13 on the second surface 12. The first texture layer 40 is composed of a plurality of decorative textures 42 arranged at intervals. The decorative texture 42 may be a decorative protrusion 42 formed with a decorative recess 44 between any two adjacent decorative protrusions 42. The cross section of the decorative texture 42 perpendicular to the second surface 12 may be in the shape of a rectangle, a triangle, an arch, a trapezoid, a polygon, or the like. In the process of forming the first textured layer 40, the first textured layer 40 of different patterns can be rendered by imprinting the laid UV glue with different templates.

The coating layer 50 is formed on the first texture layer 40 and on the side of the first texture layer 40 remote from the substrate layer 30. The inner edge of the coating layer 50 is flush with the inner edge of the first texture layer 40, that is, the coating layer 50 is disposed corresponding to the first texture layer 40. The coating layer 50 may be a opaque metallic color film layer. By the pattern of the first texture layer 40, an appearance having a different pattern and color can be observed on the side of the second surface 12 of the substrate 10. The plating layer 50 may be a single layer or a plurality of layers. The material of the plating layer 50 may be one or more of an aluminum oxide layer, a hafnium oxide layer, a titanium oxide layer, a vanadium oxide layer, a tungsten oxide layer, a silicon oxide layer, and a silicon nitride layer.

The ink layer 60 is formed on the plating layer 50. The ink layer 60 is disposed corresponding to the plating layer 50, the first texture layer 40, and the second texture layer 13. Both the ink layer 60 and the plating layer 50 are opaque, so that the ink layer 60 and the coating layer on the first surface 11 side of the substrate 10 are not visible when viewed on the second surface 12 side toward the first surface 11. 50 blocked scenes. The ink layer 60 may also be a single layer or multiple layers. In the present embodiment, the first texture layer 40, the plating layer 50, and the ink layer 60 have a ring structure.

The coating layer 50 and the ink layer 60 are disposed on the first texture layer 40. Since the coating layer 50 and the ink layer 60 are opaque, the light passes through the first texture layer 40 and is blocked by the coating layer 50 and the ink layer 60, but A texture layer 40 is transparent. On the second surface 12 side of the substrate 10, the user can still observe the pattern exhibited by the first texture layer 40, the coating layer 50, and the ink layer 60, and thus is located on the side of the second surface 12. The user can observe the colorful effect exhibited by the coating layer 50 and the ink layer 60; and after the light emitted by the pattern on the side opposite to the second surface 12 of the cover 100 is blocked by the ink layer 60 and the coating layer 50, Will pass through the first texture layer 40 and be seen by the user on the side of the second surface 12, so that the user on the side of the second surface 12 will not see the side of the cover 100 opposite the second surface 12. picture of.

When the light irradiated on the coating layer 50 and the ink layer 60 is reflected by the coating layer 50 and the ink layer 60 and transmitted to the first texture layer 40, the light interferes on the surface of the first texture layer 40, and the light is transmitted to the second texture. The layer 13 has a second interference on the surface of the second texture layer 13, so that the user on the side of the second surface 12 can see the coating layer 50 and the ink layer 60 through the second texture layer 13 and the first texture layer 40. A more colorful pattern that is presented.

The cover plate 100 of the embodiment of the present invention forms a second texture layer 13 on the second surface 12 of the substrate 10, and provides a first texture layer 40 on the first surface 11 to pass light through the first texture layer 40 and/or the second. The texture layer 13 interferes, so that the user can see the colorful visual effects and enhance the user experience.

Referring to FIG. 2, in some embodiments, the edge of the second surface 12 is formed with a circular arc surface 102, and the second texture layer 13 is formed on the circular arc surface 102. At this time, the first texture layer 40 may be disposed corresponding to the second texture layer 13. Since the divergence angle when the light passes through the second texture layer 13 formed on the circular arc surface 102 is larger than the divergence angle when the light rays pass through the second texture layer 13 formed on the plane, the user located on the side of the second surface 12 Able to see colorful visuals over a wider range of angles. When the cover 100 is mounted on the display 201 side of the electronic device 200, the position of the circular arc surface 102 corresponds to the position of the non-display area 203 (shown in FIG. 28) of the display 201.

Referring to FIG. 3, in some embodiments, the substrate 10 includes a central portion 103 at the center of the substrate and a bent portion 104 surrounding the central portion 103. The bent portion 104 is bent toward the side of the first surface 11 with respect to the central portion 103. The second texture layer 13 is formed on the bent portion 104. The central portion 103 may be a plane or a circular arc surface, and the first texture layer 40 may be disposed corresponding to the second texture layer 13 . Since the divergence angle when the light passes through the second texture layer 13 formed on the bent portion 104 is larger than the divergence angle when the light passes through the second texture layer 13 formed at the center portion 103, it is located on the side of the second surface 12 Users can see colorful visuals over a wider range of angles. In other embodiments, the bends 104 can be located at one, two, three or more substrate edges 101 of the central portion 103. When the cover 100 is mounted on the display 201 side of the electronic device 200, the position of the bent portion 104 corresponds to the position of the non-display area 203 (shown by 28) of the display 201.

Referring to FIGS. 4-6, in some embodiments, a second textured layer 13 is formed over the entire second surface 12, and a first textured layer 40 is formed over the entire substrate layer 30 and corresponding to the second textured layer 13. As such, the entire cover 100 is capable of producing a colorful visual effect. This embodiment is applicable to the cover 100 being mounted on the side without the display 201 (shown as 28), for example, on the back of the phone to increase the colorful visual effect of the back.

Referring to FIG. 9, in some embodiments, the second texture layer 13 is formed on the entire second surface 12, and the first texture layer 40 and the ink layer 60 are both formed on the edge 301 of the substrate layer 30, the first texture layer. 40 is formed on the substrate layer 30 and corresponds to the ink layer 60. The coating layer 50 may also be disposed at an edge 301 of the substrate layer 30 at a position corresponding to the first texture layer 40. As such, the cover plate 100 can produce a more colorful visual effect at the edge position corresponding to the first texture layer 40.

Referring to FIG. 10, in some embodiments, the second surface 12 includes a plane 105 at the center of the substrate and a circular arc surface 102 surrounding the plane 105, and a second texture layer 13 is formed on the plane 105. In this way, a colorful visual effect can be produced in the middle of the cover plate 100. At this time, the first texture layer 40 may be formed on the entire substrate layer 30.

Referring to FIG. 11, in some embodiments, the second texture layer 13 includes a plurality of textures 132 spaced apart, and a plurality of textures 132 are equally spaced on the second surface 12. The substrate texture 132 may include protrusions 132 formed on the substrate 10, and the plurality of textures 132 may have the same or different cross-sectional widths perpendicular to the second surface 12. The second texture layer 13 may be formed on the entire second surface 12 (as shown in FIG. 11); alternatively, the second texture layer 13 may be formed at the position of the substrate edge 101 (as shown in FIG. 1). The equal spacing of the plurality of textures 132 facilitates the fabrication of the second texture layer 13, while the second texture layer 13 produces a more uniform visual effect.

Referring to FIG. 12, in some embodiments, the second texture layer 13 includes a plurality of textures 132 spaced apart, and a plurality of textures 132 are formed on the second surface 12 at unequal intervals. The unequal spacing of the plurality of textures 132 on the second surface 12 includes the following: first, the spacing between the plurality of textures 132 is gradually reduced in a direction away from the center position of the substrate 10; second, at a distance from the substrate In the direction of the center position of 10, the spacing between the plurality of textures 132 is gradually increased. The cross-sectional width of the plurality of textures 132 along the second surface 12 may be the same or different. The second texture layer 13 may be formed on the entire second surface 12; alternatively, the second texture layer 13 may be formed at a position of the substrate edge 101 (shown in FIG. 1). As such, the second texture layer 13 can produce a gradual colorful effect.

Referring to FIG. 13 , in some embodiments, the second texture layer 13 includes a plurality of textures 132 disposed at intervals, and at least two textures 132 of different widths exist in the plurality of textures 132, between any two adjacent textures 132 Same as L1. The texture 132 having at least two different widths among the plurality of textures 132 includes the following cases: first, the width of the plurality of textures 132 is gradually decreased in a direction away from the center position of the substrate 10; and second, at a distance from the substrate 10. In the direction of the center position, the widths of the plurality of textures 132 gradually increase; third, in a specific direction of the substrate 10 (for example, the length direction or the width direction of the substrate 10), the widths of the plurality of textures 132 gradually increase (eg, Figure 13)). The second texture layer 13 may be formed on the entire second surface 12; alternatively, the second texture layer 13 may be formed at a position of the substrate edge 101 (shown in FIG. 1). As such, the second texture layer 13 can produce a gradual colorful effect.

Referring to FIG. 14 , in some embodiments, the second texture layer 13 includes a plurality of protrusions 132 , and a recess 134 is formed between the adjacent two protrusions 132 . The height H1 of the protrusions 132 is 5 μm-200 μm. The width W1 of 132 is 20 μm to 200 μm. The heights H1 of the plurality of protrusions 132 may all be the same, or all of the same, or only partially the same, and the widths W1 of the plurality of protrusions 132 may be the same, or all of the same, or only partially identical. For example, the height H1 of the protrusion 132 may be selected from 5 μm, 10 μm, 20 μm, 25 μm, 30 μm, 40 μm, 50 μm, 60 μm, 80 μm, 100 μm, 120 μm, 125 μm, 130 μm, 140 μm, 145 μm, 150 μm, 160 μm, 170 μm, 180 μm, 190 μm, Any one of 200 μm, or a value between any two of the above. The width W1 of the protrusion 132 may be any one of 20 μm, 25 μm, 30 μm, 40 μm, 50 μm, 60 μm, 80 μm, 100 μm, 120 μm, 125 μm, 130 μm, 140 μm, 145 μm, 150 μm, 160 μm, 170 μm, 180 μm, 190 μm, and 200 μm. Or take a value between any of the above. Wherein, the height H1 of the protrusion 132 can be understood as the vertical height H1 of the bottom of the recess 134 to the top end of the protrusion 132, and the width W1 of the protrusion 132 is the width W1 of the protrusion 132 along the largest section perpendicular to the second surface 12, The plurality of protrusions 132 may have any one or more of a shape of a rectangle, a triangle, an arc, a trapezoid, a polygon, or the like along a section perpendicular to the second surface 12. Referring to FIG. 1, it is verified that when the protrusion 132 of the second texture layer 13 has the above-mentioned size, the light on the side of the first surface 11 may interfere with the appearance when passing through the surface of the second texture layer 13. The visual effect is obvious and has a significant appeal to the user. Preferably, the height H1 of the protrusion 132 is 10 μm - 100 μm, and the width W1 of the protrusion 132 is 50 μm - 100 μm. For example, the height H1 of the protrusion 132 may be any one of 10 μm, 20 μm, 25 μm, 30 μm, 40 μm, 50 μm, 60 μm, 70 μm, 80 μm, 90 μm, 100 μm, or a value between any two of the above. The width W1 of the protrusion 132 may be any one of 50 μm, 55 μm, 60 μm, 65 μm, 70 μm, 75 μm, 80 μm, 85 μm, 90 μm, 95 μm, 100 μm, or a value between any two of the above.

Referring to FIG. 14 again, in some embodiments, the second texture layer 13 includes a plurality of protrusions 132, and a recess 134 is formed between the two adjacent protrusions 132. The cross-sectional shape of the protrusions 132 is rectangular, adjacent to the two The spacing distance G1 of the protrusions 132 is 5 μm - 100 μm. For example, the distance G1 between two adjacent protrusions 132 may be selected from 5 μm, 10 μm, 15 μm, 20 μm, 25 μm, 30 μm, 35 μm, 40 μm, 45 μm, 50 μm, 55 μm, 60 μm, 65 μm, 70 μm, 75 μm, 80 μm, 85 μm, 90 μm. Any one of 95 μm and 100 μm, or a value between any two of the above. At this time, the height H1 of the protrusion 132 may be 5 μm to 200 μm, and the width W1 of the protrusion 132 may be 20 μm to 200 μm. Referring to FIG. 1, it is verified that when the protrusion 132 of the second texture layer 13 has the above shape and size, the light on the side of the first surface 11 may interfere when passing through the surface of the second texture layer 13. The visual appearance is obvious and has a significant appeal to the user. Preferably, the spacing distance G1 of the adjacent two protrusions 132 is 10 μm to 50 μm. For example, the distance G1 between the adjacent two protrusions 132 may be any one of 10 μm, 15 μm, 20 μm, 25 μm, 30 μm, 35 μm, 40 μm, 45 μm, and 50 μm, or a value between any two of the above.

Referring to FIG. 1 and FIG. 15 together, in some embodiments, the second texture layer 13 includes a plurality of protrusions 132, and a recess 134 is formed between the adjacent two protrusions 132. The cross-sectional shape of the protrusion 132 is a triangle. The bottoms of any two adjacent protrusions 132 are adjacent. The plurality of protrusions 132 may be any one or more of a tetrahedron, a pentahedron, and a cone. The bottom of any two adjacent protrusions 132 abuts to make the optical interference distribution generated by the second texture layer 13 more uniform, and the light rays on the side of the first surface 11 interfere with each other when passing through the surface of the second texture layer 13. The appearance of the appearance is obvious and has a significant appeal to the user. In other embodiments, the cross-sectional shape of the protrusions 132 can also be arcuate (as shown in Figure 16).

Referring to FIG. 1 and FIG. 17 together, in some embodiments, the second texture layer 13 includes a plurality of protrusions 132, and a recess 134 is formed between the two adjacent protrusions 132. The cross-sectional shape of the protrusion 132 is a triangle. The bottom spacing distance D1 of the adjacent two protrusions 132 is 5 μm - 100 μm. For example, the bottom spacing distance D1 of the adjacent two protrusions 132 may be any one of 5 μm, 10 μm, 20 μm, 25 μm, 30 μm, 40 μm, 50 μm, 60 μm, 70 μm, 80 μm, 80 μm, 100 μm, or both The value between them. The plurality of protrusions 132 may be any one or more of a tetrahedron, a pentahedron, and a cone. At this time, the height H1 of the protrusion 132 may be 5 μm to 200 μm, and the width W1 of the protrusion 132 may be 20 μm to 200 μm. The height H1 of the protrusion 132 can be understood as the vertical height H1 of the bottom of the recess 134 to the top end of the protrusion 132, and the width W1 of the protrusion 132 is the width W1 of the protrusion 132 along the largest section perpendicular to the second surface 12. By verifying that when the protrusion 132 of the second texture layer 13 has the above shape and size, the light on the side of the first surface 11 interferes with the appearance of the surface of the second texture layer 13 and the visual effect is obvious. , has a significant appeal to users. In other embodiments, the cross-sectional shape of the protrusions 132 can also be arcuate (as shown in Figure 18). Preferably, the bottom spacing distance D1 of the adjacent two protrusions 132 is 10 μm-50 μm. For example, the bottom separation distance D1 of the adjacent two protrusions 132 may be any one of 10 μm, 15 μm, 20 μm, 25 μm, 30 μm, 35 μm, 40 μm, 45 μm, 50 μm, or a value between any two of the above.

Referring to FIG. 15 and FIG. 17 , in some embodiments, the second texture layer 13 includes a plurality of protrusions 132 , and a recess 134 is formed between the adjacent two protrusions 132 . The cross-sectional shape of the protrusions 132 is a triangle and a triangle. The corresponding tip angle α1 is 30°-150°. The angle α1 of the top end of the protrusion 132 can be selected from 30°, 40°, 45°, 50°, 60°, 70°, 80°, 90°, 100°, 110°, 120°, 130°, 135°, 140°. Any one of 150°, or a value between any two of the above. At this time, the height H1 of the protrusion 132 may be 5 μm to 200 μm, and the width W1 of the protrusion 132 may be 20 μm to 200 μm. Preferably, the triangular corresponding top end angle α1 is 45°-120°. For example, the angle α1 of the top end of the protrusion 132 may be selected from any one of 45°, 50°, 60°, 70°, 80°, 90°, 100°, 110°, 120°, or between any two of the above. Value. Referring to FIG. 1, it is verified that when the protrusion 132 of the second texture layer 13 has the above shape and size, the light on the side of the first surface 11 may interfere when passing through the surface of the second texture layer 13. The visual appearance is obvious and has a significant appeal to the user. In other embodiments, the cross-sectional shape of the protrusion 132 may also be arcuate (as shown in FIGS. 16 and 18). In this case, the arcuate arc corresponding to the central angle β1 is 30°-150°. For example, the central angle β1 corresponding to the arc of the protrusion 132 is 30°, 40°, 45°, 50°, 60°, 70°, 80°, 90°, 100°, 110°, 120°, 130°, 135. Any one of °, 140°, 150°, or between any two of the above. Preferably, the arcuate arc corresponds to a central angle β1 of 45°-120°. For example, the central angle β1 corresponding to the arc of the protrusion 132 is any one of 45°, 50°, 60°, 70°, 80°, 90°, 100°, 110°, 120°, or both The value between them.

Referring to FIGS. 11-18, in some embodiments, the second texture layer 13 includes a plurality of protrusions 132, and a recess 134 is formed between the adjacent two protrusions 132. The pattern formed by the protrusions 132 and the recesses 134 is extended. Wavy, mesh cross or brushed. Specifically, the pattern of the second texture layer 13 is represented by a trajectory formed by the protrusions 132 and the recesses 134. As such, the second texture layer 13 is easy to fabricate.

Referring to FIG. 19, in some embodiments, the first texture layer 40 includes a plurality of decorative textures 42 spaced apart, and a plurality of decorative textures 42 are equally spaced on the substrate layer 30. Wherein, the decorative texture 42 may include decorative protrusions 42 formed on the substrate layer 30, and the cross-sectional widths of the plurality of decorative textures 42 perpendicular to the substrate layer 30 may be the same or different. The first texture layer 40 may be formed over the entire substrate layer 30 (as shown in FIG. 19); alternatively, the first texture layer 40 may be formed at the edge of the substrate edge 301 (as shown in FIG. 1). The plurality of decorative textures 42 are equally spaced to facilitate the fabrication of the first texture layer 40, while the first texture layer 40 produces a more uniform visual effect.

Referring to FIG. 20, in some embodiments, the first texture layer 40 includes a plurality of decorative textures 42 spaced apart, and a plurality of decorative textures 42 are formed on the substrate layer 30 at unequal intervals. The unequal spacing of the plurality of decorative textures 42 formed on the substrate layer 30 includes the following: first, the spacing between the plurality of decorative textures 42 is gradually reduced in a direction away from the center position of the substrate layer 30; The spacing between the plurality of decorative textures 42 is gradually increased in a direction away from the center position of the substrate layer 30. The cross-sectional width of the plurality of decorative textures 42 perpendicular to the substrate layer 30 may be the same or different. The first texture layer 40 may be formed on the entire substrate layer 30; alternatively, the first texture layer 40 may be formed at a position of the substrate edge 301. As such, the first texture layer 40 can produce a gradual colorful effect.

Referring to FIG. 21, in some embodiments, the first texture layer 40 includes a plurality of decorative textures 42 disposed at intervals, and at least two different widths of the decorative texture 42 are present in the plurality of decorative textures 42, any two adjacent decorations. The distance L2 between the textures 42 is the same. The decorative texture 42 having at least two different widths in the plurality of decorative textures 42 includes the following situation: first, the width of the plurality of decorative textures 42 gradually decreases in a direction away from the center position of the substrate layer 30; The width of the plurality of decorative textures 42 gradually increases in a direction away from the center position of the base material layer 30; third, in a specific direction of the base material layer 30 (for example, the longitudinal direction or the width direction of the base material layer 30) The width of the plurality of decorative textures 42 is gradually increased (as shown in FIG. 21). The first texture layer 40 may be formed on the entire substrate layer 30; alternatively, the first texture layer 40 may be formed at a position of the substrate edge 301. As such, the first texture layer 40 can produce a gradual colorful effect.

Referring to FIG. 22, in some embodiments, the first texture layer 40 includes a plurality of decorative protrusions 42. A decorative recess 44 is formed between two adjacent decorative protrusions 42. The height H2 of the decorative protrusions 42 is 5 μm- 200 μm, the decorative protrusion 42 has a width W2 of 20 μm to 200 μm. The heights H2 of the decorative protrusions 42 may be the same, or different, or only partially the same, and the widths W2 of the plurality of decorative protrusions 42 may be the same, or different, or only partially identical. For example, the height H2 of the decorative protrusions 42 may be selected from 5 μm, 10 μm, 20 μm, 25 μm, 30 μm, 40 μm, 50 μm, 60 μm, 80 μm, 100 μm, 120 μm, 125 μm, 130 μm, 140 μm, 145 μm, 150 μm, 160 μm, 170 μm, 180 μm, and 190 μm. Any one of 200 μm, or a value between any two of the above. The width W2 of the decorative protrusion 42 may be any one of 20 μm, 25 μm, 30 μm, 40 μm, 50 μm, 60 μm, 80 μm, 100 μm, 120 μm, 125 μm, 130 μm, 140 μm, 145 μm, 150 μm, 160 μm, 170 μm, 180 μm, 190 μm, and 200 μm. Or take a value between any of the above. The height H2 of the decorative protrusion 42 can be understood as the vertical height H2 of the bottom of the decorative recess 44 to the top end of the decorative protrusion 42. The width W2 of the decorative protrusion 42 is the maximum of the decorative protrusion 42 along the second surface 12 The width W2 of the cross section, the cross section of the plurality of decorative protrusions 42 along the second surface 12 may be any one or more of a shape of a rectangle, a triangle, an arc, a trapezoid, a polygon, or the like. Referring to FIG. 1, it is verified that when the decorative protrusion 42 of the first texture layer 40 has the above size, the user on the side of the second surface 12 can see the coating layer 50 and the ink layer 60 through the first texture layer 40. More colorful patterns are presented. Preferably, the height H2 of the decorative protrusion 42 is 10 μm to 100 μm, and the width W1 of the decorative protrusion 42 is 50 μm to 100 μm. For example, the height H2 of the decorative protrusion 42 may be any one of 10 μm, 20 μm, 25 μm, 30 μm, 40 μm, 50 μm, 60 μm, 70 μm, 80 μm, 90 μm, 100 μm, or a value between any two of the above. The width W2 of the decorative protrusion 42 may be any one of 50 μm, 55 μm, 60 μm, 65 μm, 70 μm, 75 μm, 80 μm, 85 μm, 90 μm, 95 μm, and 100 μm, or a value between any two of the above.

Referring to FIG. 22, in some embodiments, the first texture layer 40 includes a plurality of decorative protrusions 42 formed between the two adjacent decorative protrusions 42 and the decorative protrusions 42 have a rectangular cross-sectional shape. The spacing distance G2 of the adjacent two decorative protrusions 42 is 5 μm - 100 μm. For example, the width W2 of the decorative protrusion 42 may be selected from 5 μm, 10 μm, 15 μm, 20 μm, 25 μm, 30 μm, 35 μm, 40 μm, 45 μm, 50 μm, 55 μm, 60 μm, 65 μm, 70 μm, 75 μm, 80 μm, 85 μm, 90 μm, 95 μm, 100 μm. Any one of them, or a value between any two of the above. At this time, the height H2 of the decorative protrusion 42 may be 5 μm to 200 μm. Referring to FIG. 1, it is verified that when the decorative protrusion 42 of the first texture layer 40 has the above size, the user on the side of the second surface 12 can see the coating layer 50 and the ink layer 60 through the first texture layer 40. More colorful patterns are presented. Preferably, the spacing distance G2 of the adjacent two decorative protrusions 42 is 10 μm to 50 μm. For example, the distance G2 between the adjacent two decorative protrusions 42 may be any one of 10 μm, 15 μm, 20 μm, 25 μm, 30 μm, 35 μm, 40 μm, 45 μm, 50 μm or a value between any two of the above.

Referring to FIG. 1 and FIG. 23 together, in some embodiments, the first texture layer 40 includes a plurality of decorative protrusions 42 , and a decorative recess 44 is formed between two adjacent decorative protrusions 42 . The cross-sectional shape is a triangle, and the bottoms of any two adjacent decorative protrusions 42 are adjacent. The plurality of decorative protrusions 42 may be any one or more of a tetrahedron, a pentahedron, and a cone. At this time, the height H2 of the decorative protrusion 42 is 5 μm to 200 μm, and the width W2 of the decorative protrusion 42 is 20 μm to 200 μm. The height H2 of the decorative protrusion 42 can be understood as the vertical height H2 of the bottom of the decorative recess 44 to the top end of the decorative protrusion 42. The width W2 of the decorative protrusion 42 is the maximum of the decorative protrusion 42 along the second surface 12 The width of the section is W2. The bottom of any two adjacent decorative protrusions 42 abuts to make the optical interference distribution generated by the first texture layer 40 more uniform, and the user on the side of the second surface 12 can see the coating layer 50 and the ink through the first texture layer 40. The layer 60 presents a more colorful pattern. In other embodiments, the cross-sectional shape of the decorative protrusion 42 may also be arcuate (as shown in FIG. 24).

Referring to FIG. 1 and FIG. 25 together, in some embodiments, the first texture layer 40 includes a plurality of decorative protrusions 42 , and a decorative recess 44 is formed between two adjacent decorative protrusions 42 . The cross-sectional shape is a triangle, and the bottom separation distance D2 of the adjacent two decorative protrusions 42 is 5 μm - 100 μm. For example, the bottom distance G2 of the adjacent two decorative protrusions 42 may be any one of 5 μm, 10 μm, 20 μm, 25 μm, 30 μm, 40 μm, 50 μm, 60 μm, 70 μm, 80 μm, 80 μm, 100 μm, or any two of the above. The value between the two. The plurality of decorative protrusions 42 may be any one or more of a tetrahedron, a pentahedron, and a cone. At this time, the height H2 of the decorative protrusion 42 is 5 μm to 200 μm, and the width W2 of the decorative protrusion 42 is 20 μm to 200 μm. The height H2 of the decorative protrusion 42 can be understood as the vertical height H2 of the bottom of the decorative recess 44 to the top end of the decorative protrusion 42. The width W2 of the decorative protrusion 42 is the maximum of the decorative protrusion 42 along the second surface 12 The width of the section is W2. By verifying that the decorative protrusions 42 of the first texture layer 40 have the above dimensions, the user on the side of the second surface 12 can see through the first texture layer 40 that the coating layer 50 and the ink layer 60 are more dazzling. Color pattern. In other embodiments, the cross-sectional shape of the decorative protrusion 42 may also be arcuate (as shown in Figure 26). Preferably, the bottom two adjacent decorative protrusions 42 have a bottom separation distance D2 of 10 μm to 50 μm. For example, the bottom separation distance D2 of the adjacent two decorative protrusions 42 may be any one of 10 μm, 15 μm, 20 μm, 25 μm, 30 μm, 35 μm, 40 μm, 45 μm, 50 μm, or a value between any two of the above.

Referring to FIG. 23 and FIG. 25 , in some embodiments, the first texture layer 40 includes a plurality of decorative protrusions 42 , and a decorative recess 44 is formed between two adjacent decorative protrusions 42 . In the case of a triangle, the top angle α2 of the triangle corresponds to 30°-150°. The angle α2 of the top end of the decorative protrusion 42 can be selected from 30°, 40°, 45°, 50°, 60°, 70°, 80°, 90°, 100°, 110°, 120°, 130°, 135°, 140. Any one of °, 150°, or between any two of the above. Preferably, the triangular corresponding top end angle α2 is 45°-120°. For example, the angle α2 of the top end of the decorative protrusion 42 may be any one of 45°, 50°, 60°, 70°, 80°, 90°, 100°, 110°, 120°, or in any of the above two. Value between. Referring to FIG. 1, it is verified that when the decorative protrusion 42 of the first texture layer 40 has the above size, the user on the side of the second surface 12 can see the coating layer 50 and the ink layer 60 through the first texture layer 40. More colorful patterns are presented. In other embodiments, the cross-sectional shape of the decorative protrusion 42 may also be arcuate (as shown in FIGS. 24 and 26). In this case, the arcuate arc corresponding to the central angle β2 is 30°-150°. For example, the central angle β2 corresponding to the arc of the decorative protrusion 42 is 30°, 40°, 45°, 50°, 60°, 70°, 80°, 90°, 100°, 110°, 120°, 130°, Any one of 135°, 140°, 150°, or a value between any two of the above. Preferably, the arcuate arc corresponds to a central angle β2 of 45°-120°. For example, the central angle β2 corresponding to the arc of the decorative protrusion 42 is any one of 45°, 50°, 60°, 70°, 80°, 90°, 100°, 110°, 120°, or any two of the above. The value between the two.

Referring to FIGS. 19-26, in some embodiments, the first texture layer 40 includes a plurality of decorative protrusions 42 between which the decorative depressions 44, the decorative protrusions 42 and the decorative depressions 44 are formed. The pattern formed by the extension is a wave shape, a mesh cross shape or a wire shape. Specifically, the pattern of the first texture layer 40 is represented by a trajectory formed by the decorative protrusion 42 and the decorative recess 44. As such, the first texture layer 40 is easy to fabricate.

Referring to FIG. 27, in some embodiments, the cover plate 100 further includes a hardened layer 70 disposed between the bonding layer 20 and the substrate layer 30. Specifically, the decorative film 106 further includes a hardened layer 70 disposed between the bonding layer 20 and the substrate layer 30. The hardened layer 70 may be formed on the substrate layer 30 by coating or plating. Since the hardened layer 70 is provided on the base material layer 30, the deformation resistance of the entire decorative film 106 is enhanced, thereby preventing the decorative film 106 from being deformed during attachment to the substrate 10 and subsequent processing.

Referring to FIG. 27, in some embodiments, the cover plate 100 further includes a hardened layer 70 disposed between the bonding layer 20 and the substrate layer 30. The hardened layer 70 may be a polyurethane coating, an inorganic nanoceramic coating, or a radiation cured coating, which is conveniently formed on the substrate layer 30. Since the hardened layer 70 is provided on the base material layer 30, the deformation resistance of the entire decorative film 106 is enhanced, thereby preventing the decorative film 106 from being deformed during attachment to the substrate 10 and subsequent processing.

Referring to FIG. 28, an electronic device 200 according to an embodiment of the present invention includes a body 204 and a cover 100 of any of the above embodiments. The body 204 includes opposite front faces 205 and a back face (not shown). The cover plate 100 is disposed on the front surface 205. In other embodiments, the cover plate 100 may also be disposed on the back surface; or, the number of the cover plates 100 is two, and the two cover plates 100 are respectively disposed on the front surface 205 and the back surface.

In the embodiment of the present invention, the electronic device 200 passes the second texture layer 13 on the second surface 12 of the substrate 10 and sets the first texture layer 40 on the first surface 11 to pass the light through the first texture layer 40 and/or the second. The texture layer 13 interferes, so that the user can see the colorful visual effects and enhance the user experience.

Referring to FIG. 28, in some embodiments, the front surface 205 of the body 204 is provided with a display screen 201. When the cover 100 is mounted on the display screen 201, the second texture layer 13 can also be disposed on the display screen 201. The display area 203 is at a position corresponding to the display area 203 and the display area 202 of the display 201 is exposed. At this time, the first texture layer 40 corresponds to both the second texture layer 13 and the non-display area 203. As such, the electronic device 200 can maintain the original display effect in the display area 202 and produce a colorful visual effect in the non-display area 203.

Referring to FIG. 29, a manufacturing method of a cover plate 100 according to an embodiment of the present invention includes: S1, providing a substrate 10 including a first surface 11 and a second surface 12 opposite to each other, and a second surface 12 is formed with a second texture The layer 13; S2, provides a decorative film 106, the decorative film 106 includes a substrate layer 30, a first texture layer 40 and an ink layer 60, which are sequentially disposed; S3, the decorative film 106 is bonded to the substrate 10 by the bonding layer 20. Together, the bonding layer 20 is disposed between the first surface 11 and the substrate layer 30.

The cover plate 100 of the embodiment of the present invention passes the first texture layer 40 on the second surface 12 of the substrate 10 and the first texture layer 40 on the first surface 11 to pass the light through the first texture layer 40 and/or the second texture. Interference occurs at layer 13, so that the user can see the colorful visual effects and enhance the user experience.

Referring to FIG. 30, in some embodiments, the step of providing a substrate 10 (step S1) includes: S11, providing a substrate 107 including a first surface 11 and a second surface 12 opposite to each other; S12 Applying a photoresist layer 108 on the second surface 12; S13, exposing and developing the photoresist layer 108 to form a texture pattern; S14, etching the substrate 107 to obtain a second texture layer 13; S15, removing the light group layer 108 . The equipment required for the above production method is easily available, and thus it is easy to manufacture.

In some embodiments, the step of providing a substrate 10 (step S1) further includes: S16, subjecting the substrate 107 obtained by removing the photoresist layer 108 (step S15) to hot bending to obtain the substrate 10. As described above, the substrate 10 produced by the above manufacturing method has the bent portion 104.

In the description of the present specification, reference is made to the terms "some embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific examples", or "some examples", etc. The descriptions of the specific features, structures, materials or features described in connection with the embodiments or examples are included in at least one embodiment or example of the invention. In the present specification, the schematic representation of the above terms does not necessarily mean the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" or "second" may include at least one of the features, either explicitly or implicitly. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless specifically defined otherwise.

Although the embodiments of the present invention have been shown and described, it is understood that the above-described embodiments are illustrative and are not to be construed as limiting the scope of the invention. The scope of the invention is defined by the claims and their equivalents.

Claims (20)

1. A cover plate comprising a substrate, an adhesive layer, a substrate layer, a first texture layer and an ink layer, the substrate comprising opposite first and second surfaces, the second surface being formed with a second texture layer, the bonding layer, the substrate layer, the first texture layer, and the ink layer are sequentially disposed on the first surface.
2. The cover according to claim 1, wherein the second texture layer is formed on an edge of the substrate, and the first texture layer, the second texture layer, and the ink layer are correspondingly disposed.
3. The cover according to claim 1 or 2, wherein the cover further comprises a coating layer between the first texture layer and the ink layer.
4. The cover according to claim 2, wherein an edge of the second surface is formed with a circular arc surface, and the second texture layer is formed on the circular arc surface; or

   The substrate includes a central portion at a center of the substrate and a bent portion surrounding the central portion, the bent portion being bent toward a side of the first surface with respect to the central portion, the second texture A layer is formed on the bent portion.
5. The cover according to claim 1, wherein said second texture layer is formed on said entire second surface, said first texture layer being formed on said entire substrate layer and said Corresponding to two texture layers; or

   The second texture layer is formed on the entire second surface, the first texture layer and the ink layer are both formed on an edge of the substrate layer, and the first texture layer is formed on the substrate The layer corresponds to the ink layer.
6. The cover according to claim 1, wherein said second surface comprises a plane at a center of said substrate and a circular arc surface surrounding said plane, said second texture layer being formed on said plane.
7. The cover according to claim 1, wherein said second texture layer comprises a plurality of textures spaced apart,

   A plurality of the textures are equally spaced on the second surface; or

   a plurality of the textures are formed at equal intervals on the second surface; or

   There are at least two different width textures among the plurality of textures, and the distance between any two adjacent textures is the same.
8. The cover plate according to any one of claims 1-2, 4-7, wherein the second texture layer comprises a plurality of protrusions, and a depression is formed between two adjacent protrusions, the protrusion The height is from 5 μm to 200 μm, and the width of the protrusions is from 20 μm to 200 μm.
9. The cover according to claim 8, wherein said protrusion has a height of from 10 μm to 100 μm and said protrusion has a width of from 50 μm to 100 μm.
10. The cover according to claim 8, wherein the projection has a rectangular cross-sectional shape, and the distance between adjacent ones of the projections is from 5 μm to 100 μm.
11. The cover according to claim 10, wherein the adjacent two of said protrusions are spaced apart by a distance of from 10 μm to 50 μm.
12. The cover according to claim 8, wherein the projection has a triangular or arcuate cross-sectional shape, and the bottoms of any two adjacent projections abut, or the bottoms of two adjacent projections The separation distance is from 5 μm to 100 μm.
13. The cover plate according to claim 12, wherein when the cross-sectional shape of the protrusion is a triangle, the angle corresponding to the top end of the triangle is 30°-150°;

    When the cross-sectional shape of the protrusion is an arc shape, the arcuate arc corresponding to the central angle of the circle is 30°-150°.
14. The cover according to claim 8, wherein the protrusion has a triangular or arcuate cross-sectional shape, and the bottom of the adjacent two of the protrusions has a distance of 10 μm to 50 μm.
15. The cover according to claim 8, wherein the pattern in which the protrusion and the recess extend to form a wave shape, a mesh cross shape or a wire shape.
16. The cover according to claim 1, wherein said cover further comprises a hardened layer disposed between said bonding layer and said substrate layer.
17. The cover according to claim 16, wherein the hardened layer is a polyurethane coating, an inorganic nanoceramic coating or a radiation cured coating.
18. An electronic device, comprising:

    a body comprising opposite front and back faces;

    The cover of any of claims 1-17, the cover being disposed on the front side and/or the back side.
19. A manufacturing method of a cover plate, characterized in that the manufacturing comprises:

    Providing a substrate, the substrate includes a first surface and a second surface opposite to each other, and the second surface is formed with a second texture layer;

    Providing a decorative film, the decorative film comprising a substrate layer, a first texture layer and an ink layer disposed in sequence;

    The decorative film is bonded to the substrate by an adhesive layer disposed between the first surface and the substrate layer.
20. The manufacturing method according to claim 19, wherein the step of providing a substrate comprises:

    Providing a substrate, the substrate comprising the first surface and the second surface opposite to each other;

    Coating a photoresist layer on the second surface;

    Exposing and developing the photoresist layer to form a texture pattern;

    Etching the substrate to obtain the second texture layer;

    The photo group layer is removed to obtain the substrate.

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