Decorative member, electronic device, and method for manufacturing decorative member

Abstract

The application provides a decorative piece, an electronic device and a preparation method of the decorative piece. The decorative piece comprises a base body and a grating layer arranged on the base body. The grating layer comprises a plurality of first texture areas, and at least part of the first texture areas are formed by superimposition and combination of M grating patterns in a preset relationship. Each grating pattern comprises a plurality of grating areas. At least one grating area of an N+1th grating pattern is superimposed with at least one grating area of an Nth grating pattern, and grating angles a of the grating areas of the Nth grating pattern, grating angles b of the grating areas of the N+1th grating pattern and grating angles c of superimposed areas of the grating areas of the N+1th grating pattern and the Nth grating pattern satisfy a preset relationship: c=X*a+Y*b. X represents a first weight, and Y represents a second weight; when the grating angle a is different from the grating angle b, the first weight and the second weight satisfy: 0.8<=X+Y<=1. In this way, the decorative piece has better spatial level.

Description

Technical Field

[0001] This application relates to the field of optical technology, and in particular to a decorative part, an electronic device, and a method for manufacturing the decorative part. Background Technology

[0002] With advancements in technology and reductions in manufacturing costs, micro- and nano-structure texture technology is increasingly being applied to the exterior decoration of electronic devices (such as mobile phones, tablets, and watches). Existing decorative parts offer only simple light and shadow effects and lack a sense of spatial depth and three-dimensionality. Summary of the Invention

[0003] This application provides a decorative part, an electronic device, and a method for manufacturing the decorative part, so that the light and shadow effects of the decorative part have a sense of spatial layering and three-dimensionality.

[0004] In a first aspect, this application provides a decorative component, comprising a substrate and a grating layer disposed on the substrate. The grating layer includes a plurality of first textured regions, at least a portion of which are formed by superimposing and compositing M grating patterns according to a preset relationship. Each grating pattern includes a plurality of grating regions arranged at intervals, and at least two of the M grating patterns have different grating angles in their grating regions.

[0005] Wherein, at least one grating region in the (N+1)th grating pattern is superimposed on at least one grating region in the Nth grating pattern, and the grating angle 'a' of the grating region in the Nth grating pattern, the grating angle 'b' of the grating region in the (N+1)th grating pattern, and the grating angle 'c' of the superimposed area of ​​the grating region in the (N+1)th grating pattern and the grating region in the Nth grating pattern satisfy a preset relationship: c = X*a + Y*b. N and M are integers, and 1 ≤ N ≤ M-2. X represents the first weight, and Y represents the second weight; when the grating angle 'a' of the grating region in the Nth grating pattern is different from the grating angle 'b' of the grating region in the (N+1)th grating pattern, the first weight and the second weight satisfy: 0.8 ≤ X + Y ≤ 1.

[0006] Secondly, this application provides an electronic device that includes the aforementioned decorative element.

[0007] Thirdly, this application provides a method for preparing a decorative part, the method comprising:

[0008] Obtain the matrix;

[0009] M grating patterns are superimposed and composited according to a preset relationship to obtain a grating layer;

[0010] Each grating pattern includes multiple grating regions. At least two of the M grating patterns have different grating angles in their grating regions. At least one grating region in the (N+1)th grating pattern is superimposed on at least one grating region in the Nth grating pattern. The grating angle *a* of the grating region in the Nth grating pattern, the grating angle *b* of the grating region in the (N+1)th grating pattern, and the grating angle *c* of the superimposed area of ​​the grating regions in the (N+1)th and Nth grating patterns satisfy a preset relationship: *c* = X*a + Y*b. N and M are integers, and 1 ≤ N ≤ M-2. X represents the first weight, and Y represents the second weight. When the grating angle *a* of the grating region in the Nth grating pattern differs from the grating angle *b* of the grating region in the (N+1)th grating pattern, the first weight and the second weight satisfy: 0.8 ≤ X + Y ≤ 1.

[0011] The grating layer is formed on the substrate to obtain the decorative part.

[0012] The decorative parts, electronic devices, and methods for preparing decorative parts provided in this application are based on setting a grating layer on a substrate. The grating layer includes multiple first texture areas, and at least some of the first texture areas are formed by superimposing and compositing M grating patterns according to a preset relationship, so that different positions of the decorative parts have different light and shadow effects, thereby giving the light and shadow effects of the decorative parts a better sense of spatial hierarchy and three-dimensionality. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a side view of the decorative component provided in the embodiments of this application.

[0015] Figure 2 This is a light and shadow effect diagram of the decorative component provided in the embodiment of this application.

[0016] Figure 3 This is a schematic diagram of a partial area of ​​the grating layer in the decorative component provided in this application embodiment.

[0017] Figure 4 This is a schematic diagram of the structure of the Nth grating pattern in the decorative part provided in the embodiment of this application.

[0018] Figure 5This is a schematic diagram of the structure of the (N+1)th grating pattern in the decorative part provided in the embodiment of this application.

[0019] Figure 6 This is a schematic diagram of the structure of the decorative part provided in this application after the N+1th grating pattern and the Nth grating pattern are superimposed and combined according to a preset relationship.

[0020] Figure 7 yes Figure 6 A magnified view of a section at point E in the middle.

[0021] Figure 8 yes Figure 7 Sectional view along line FF.

[0022] Figure 9 These are light and shadow effect diagrams of decorative parts provided in some embodiments of this application.

[0023] Figure 10 This is a schematic diagram of the structure of the decorative component provided in some embodiments of this application.

[0024] Figure 11 This is a flowchart of a method for preparing a decorative part provided in some embodiments of this application.

[0025] Key reference numerals: Decorative part 10; Substrate 100; Textured surface 101; Raster layer 200; First textured area 210; Second textured area 220; Raster pattern 300; Raster area 310; First raster area 310a; Second raster area 310b; Overlay area 310c; Raster structure 312; Frosted area 410; Glittering area 420; Raster width D; Raster height H; First weight X; Second weight Y.

[0026] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0028] In this document, references to "embodiment" or "implementation" mean that a particular feature, structure, or characteristic described in connection with an embodiment or implementation may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0029] It should be noted that the terminology in the specification, claims, and accompanying drawings of this application is only for describing specific embodiments and is not intended to limit this application. The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. The term "and / or" as used in the specification and appended claims refers to any combination of one or more of the associated listed items, and all possible combinations, including such combinations.

[0030] Please refer to the following: Figure 1 , Figure 2 , Figure 3 as well as Figure 7 This application provides a decorative component 10. The decorative component 10 includes a substrate 100 and a grating layer 200 disposed on the substrate 100. The grating layer 200 includes a plurality of first texture areas 210. At least a portion of the first texture areas 210 are formed by superimposing and combining M grating patterns 300 according to a preset relationship. Each grating pattern 300 includes a plurality of grating areas 310 arranged at intervals. The grating angles of the grating areas 310 on at least two of the M grating patterns 300 are different.

[0031] In this configuration, at least one grating region 310 in the (N+1)th grating pattern 300 is superimposed on at least one grating region 310 in the Nth grating pattern 300, and the grating angle a of the grating region 310 in the Nth grating pattern 300, the grating angle b of the grating region 310 in the (N+1)th grating pattern 300, and the grating angle c of the superimposed area 310c of the grating region 310 in the (N+1)th grating pattern 300 and the grating region 310c of the grating region 310 in the Nth grating pattern 300 satisfy a preset relationship: c = X*a + Y*b. Here, N and M are both integers, and 1 ≤ N ≤ M-2. X represents the first weight, and Y represents the second weight. When the grating angle a of the grating region 310 in the Nth grating pattern 300 is different from the grating angle b of the grating region 310 in the (N+1)th grating pattern 300, the first weight and the second weight satisfy: 0.8 ≤ X + Y ≤ 1. In some embodiments, the sum of the first weight and the second weight can be 0.8, 0.85, 0.9, 0.95, 1, etc.

[0032] The decorative element 10 in this application is based on a grating layer 200 disposed on a substrate 100. The grating layer 200 includes a plurality of first texture areas 210, at least a portion of which are formed by superimposing and compositing M grating patterns 300 according to a preset relationship. This results in different lighting and shadow effects at different positions of the decorative element 10, thereby giving the lighting and shadow effects of the decorative element 10 a better sense of spatial hierarchy and three-dimensionality. For example, the number M of grating patterns 300 can be 5-15 to give the lighting and shadow effects of the decorative element 10 a stronger sense of spatial hierarchy and to make the lighting and shadow effects of the decorative element 10 clearer, more vivid, and cleaner. In some embodiments, the number M of grating patterns 300 can be 8-10. In some embodiments, the number M of grating patterns 300 can be 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 20, etc. The specific number M of grating patterns 300 can be specifically set according to the actual needs of the decorative element 10, and is not specifically limited in this application.

[0033] For example, in this embodiment, the preset relationship can be that M grating patterns 300 are sequentially superimposed and composited. For instance, the second grating pattern 300 is superimposed on the first grating pattern 300, and the third grating pattern 300 is superimposed on the composite grating pattern formed by the superposition and composite of the second and first grating patterns 300, and so on, until the Mth grating pattern 300 is superimposed on the (M-1)th grating pattern 300. In this way, M grating patterns 300 are sequentially superimposed and composited to form the grating layer 200. In some embodiments, the preset relationship can also be that the M grating patterns 300 include multiple pattern modules, at least one of the multiple pattern modules includes at least two grating patterns 300, and after the grating patterns 300 in the pattern modules are sequentially superimposed and composited, the multiple pattern modules are sequentially superimposed and composited. For example, when M=7, the 7 grating patterns 300 may include a first pattern module, a second pattern module, and a third pattern module. The first pattern module includes one grating pattern 300, the second pattern module includes two grating patterns 300, and the third pattern module includes four grating patterns 300. After the two grating patterns 300 in the second pattern module are sequentially superimposed and composited, and the four grating patterns 300 in the third pattern module are sequentially superimposed and composited, the first pattern module, the second pattern module, and the third pattern module are sequentially superimposed and composited to form a grating layer 200.

[0034] Please refer to the following: Figure 4 , Figure 5 , Figure 6 as well as Figure 7 , Figure 4 This is a structural schematic diagram of the Nth grating pattern 300. Figure 5 This is a schematic diagram of the structure of the (N+1)th grating pattern 300. Figure 6This is a schematic diagram of the structure after the (N+1)th grating pattern 300 and the Nth grating pattern 300 are superimposed and composited according to a preset relationship. Specifically, the grating region 310 in the Nth grating pattern 300 is the first grating region 310a, and the Nth grating pattern 300 includes multiple first grating regions 310a arranged at intervals. The grating region 310 in the (N+1)th grating pattern 300 is the second grating region 310b, and the N+1 grating pattern 300 includes multiple second grating regions 310b arranged at intervals.

[0035] Please refer to the following: Figure 7 and Figure 8 The grating region 310 includes a plurality of spaced-apart grating structures 312. Each grating structure 312 can be configured as a protrusion extending from the substrate 100. The grating width D of the grating structure 312 is 30μm-60μm, and the grating height H of the grating structure 312 is 0.5μm-20μm. In some embodiments, the grating width D of the grating structure 312 can be 30μm, 40μm, 50μm, 60μm, etc., and the grating height H of the grating structure 312 can be 0.5μm, 1μm, 5μm, 10μm, 10μm, 20μm, etc. In some embodiments, when the grating structure 312 is configured as a groove on the substrate 100, the grating width D of the grating structure 312 can be the width of the groove, and the grating height H of the grating structure 312 can be the depth of the groove.

[0036] In this embodiment, the grating structure 312 is constructed as a linear grating structure. Exemplarily, the grating angle of the grating region 310 can be the angle between the extension direction of the grating structure 312 and a certain reference. For example, the grating angle of the grating region 310 can be the angle between the extension direction of the grating structure 312 and the horizontal or vertical direction. As another example, the grating angle of the grating region 310 can be the angle between the extension direction of the grating structure 312 and the extension direction of one edge of the substrate 100. For example, the substrate 100 can be rectangular, and the grating angle of the grating region 310 can be the angle between the extension direction of the grating structure 312 and the extension direction of one of the four edges of the substrate 100. The grating angle of the grating region 310 can be 0°-180° to diversify the grating angles of the grating region 310 in the grating layer 200, thereby enriching the light and shadow effects of the decorative element 10 and giving the light and shadow effects of the decorative element 10 a sense of spatial layering and three-dimensionality even at a wide viewing angle. It is understood that the grating angle of the grating region 310 has similar or the same lighting effect when it is between 180° and 360° as when it is between 0° and 180°. In some embodiments, the grating angle of the grating region 310 can be set to a smaller range, so that the decorative element 10 has a better lighting effect within a specific angular range. For example, the grating angle of the grating region 310 can be 0°-90°, 30°-120°, etc. In some embodiments, the grating structure 312 can also be constructed as a curved grating structure, a polygonal grating structure, etc.

[0037] In this embodiment, at least two grating regions 310 in each grating pattern 300 have different grating angles. Specifically, at least two of the plurality of first grating regions 310a have different grating angles 'a', and at least two of the plurality of second grating regions 310b have different grating angles 'b'. In some embodiments, the grating angles of the plurality of grating regions 310 in each grating pattern 300 are all the same.

[0038] Please refer to the following: Figure 2 and Figure 7The (N+1)th grating pattern 300 is superimposed on the Nth grating pattern 300. The second grating area 310b and the first grating area 310a are superimposed to form the superposition area 310c. The grating angle 'a' of the first grating area 310a, the grating angle 'b' of the second grating area 310b, and the grating angle 'c' of the superposition area 310c satisfy a preset relationship: c = X*a + Y*b. It can be understood that because the grating angles of the grating areas 310 located at different positions in the grating layer 200 are different, the brightness of different grating areas 310 is different from different viewing angles. There will be concentrated areas of light and dark on the decorative part 10, thus giving the light and shadow effect of the decorative part 10 a sense of spatial layering and three-dimensionality. Furthermore, in this application, the grating layer 200 is formed by superimposing and compositing M grating patterns 300. Therefore, the decorative part 10 in this application can achieve a light and shadow effect with multiple texture superposition through a single grating layer 200, without the need for a complex texture bonding process, and the manufacturing process of the decorative part 10 is simple.

[0039] In this embodiment, the grating angle a of the grating area 310 in the Nth grating pattern 300 is different from the grating angle b of the grating area 310 in the (N+1)th grating pattern 300. The first weight and the second weight satisfy: 0.8 ≤ X + Y ≤ 1, so that the grating angle a of the first grating area 310a, the grating angle b of the second grating area 310b, and the grating angle c of the superimposed area 310c are different from each other, thereby giving the decorative part 10 a richer and more diverse light and shadow effects. In some embodiments, when the grating angle a of the grating area 310 in the Nth grating pattern 300 is the same as the grating angle b of the grating area 310 in the (N+1)th grating pattern 300, the first weight and the second weight satisfy: 0.8 ≤ X + Y < 1, so that the grating angle c of the superimposed area 310c is different from the grating angle a of the first grating area 310a and the grating angle b of the second grating area 310b.

[0040] For example, in this embodiment, in at least a portion of the first texture area 210, the second weight is greater than or equal to the first weight. For instance, the first weight can be 0.3 and the second weight can be 0.7, making the grating angle c of the superposition area 310c in the grating layer 200 closer to the grating angle b of the second grating area 310b, making the texture effect of the grating pattern 300 in the grating layer 200 away from the substrate 100 more obvious, and forming a progressive depth-of-field effect, thereby making the spatial hierarchy of the decorative element 10 more obvious. In some embodiments, the first weight and the second weight can both be 0.5, so as to improve the spatial hierarchy of the decorative element 10 while making the light and shadow effect of the decorative element 10 more uniform. In some embodiments, the specific values ​​of the first weight and the second weight can be specifically set according to the actual needs of the decorative element 10, and are not specifically limited in this application. For example, the first weight can also be 0.4, 0.2, 0.15, 0.1, etc., and the second weight can be 0.6, 0.8, 0.85, 0.9, etc.

[0041] In some embodiments, the sum of the first weight and the second weight is less than 1, the grating angle between two adjacent grating areas 310 is different, or the grating angle between adjacent grating areas 310 and the superposition area 310c is different, so that the decorative element 10 has a sense of layering and space, and the various areas of the decorative element 10 flash alternately under different viewing angles, thereby giving the decorative element 10 a richer and more diverse light and shadow effect.

[0042] In some embodiments, the grating height H of the overlay region 310c is greater than or equal to the grating height H of the grating region 310, and / or the grating width D of the overlay region 310c is greater than or equal to the grating width D of the grating region 310. Here, the grating height H is the height of the grating structure 312, and the grating width D is the width of the grating structure 312. For example, the grating height H of the overlay region 310c can be greater than or equal to the grating height H of the first grating region 310a or the second grating region 310b. As another example, the grating width D of the overlay region 310c can be greater than or equal to the grating width D of the first grating region 310a or the second grating region 310b. Yet another example, the grating height H and grating width D of the overlay region 310c can be greater than or equal to the grating height H and grating width D of the first grating region 310a or the second grating region 310b, respectively. Thus, the superimposed area 310c has a brighter light and shadow effect than the first grating area 310a or the second grating area 310b, thereby giving the decorative piece 10 a better sense of spatial hierarchy.

[0043] In some embodiments, each grating region 310 in each grating pattern 300 is superimposed on at least one grating region 310 in at least one other grating pattern 300, that is, all grating regions 310 in the grating layer 200 are superimposed on the remaining grating regions 310, thereby making the overall light and shadow effect of the decorative element 10 more uniform and the spatial hierarchy better. In some embodiments, in the grating layer 200, at least some grating regions 310 are spaced apart from the remaining grating regions 310.

[0044] In some embodiments, the substrate 100 includes a textured surface 101 facing the grating layer 200, the grating layer 200 being formed on the textured surface 101, and the grating region 310 and the overlay region 310c completely covering the textured surface 101, meaning that any point on the textured surface 101 is located within the grating region 310 or the overlay region 310c, thereby giving the decorative element 10 a better light and shadow effect. In some embodiments, a portion of the textured surface 101 may be located outside the grating region 310 or the overlay region 310c.

[0045] In some embodiments, the shapes of the plurality of grating regions 310 in each grating pattern 300 are all similar patterns, and the shapes of the plurality of grating regions 310 in different grating patterns 300 are also similar patterns. Here, similar patterns refer to grating regions 310 having the same number of sides. The side lengths and interior angles of similar patterns can be different. For example, as... Figure 4 As shown, in the Nth grating pattern 300, multiple grating regions 310 have similar shapes, i.e., multiple grating regions 310 are all triangles, but the side lengths or interior angles of different grating regions 310 may be different. The shape of the grating region 310 can be a triangle, rectangle, pentagon, regular polygon, irregular polygon, circle, ellipse, or other irregular shapes, etc. Please refer to [link / reference]. Figure 9 In some embodiments, the shape of the grating region 310 may also be irregular, for example, some edges of the grating region 310 are straight lines and some edges are curved lines.

[0046] In some embodiments, the shapes of the plurality of grating regions 310 in each grating pattern 300 are all similar patterns, and the shapes of the plurality of grating regions 310 in at least one grating pattern 300 are dissimilar patterns to the shapes of the plurality of grating regions 310 in other grating patterns 300. Dissimilar patterns refer to grating regions 310 having different numbers of sides; for example, triangles and rectangles are dissimilar patterns. Exemplarily, the shapes of the plurality of grating regions 310 in a portion of the M grating patterns 300 may be triangles, while the shapes of the plurality of grating regions 310 in another portion of the grating patterns 300 may be rectangles.

[0047] In some embodiments, the shape of at least one of the grating regions 310 in at least one grating pattern 300 is dissimilar to the shapes of the other grating regions 310. For example, the grating regions 310 in one of the M grating patterns 300 may include triangles and rectangles.

[0048] Please see Figure 10 In some embodiments, the grating layer 200 further includes a plurality of second texture regions 220 arranged in a scattered pattern on the substrate 100. The plurality of second texture regions 220 are disposed adjacent to the first texture region 210, and / or the plurality of second texture regions 220 are embedded within the first texture region 210. The plurality of second textures 220 may be regularly or randomly distributed on the substrate 100; for example, the plurality of second textures 220 may be arranged in an array on the substrate 100. In some embodiments, at least two of the plurality of second texture regions 220 have different heights, thereby giving the decorative element 10 a matte textured light and shadow effect. For example, the second texture regions 220 may be constructed as protrusions on the substrate 100 or grooves formed on the substrate 100. In some embodiments, the area of ​​the second texture region 220 is smaller than the area of ​​the grating region 310, a grating structure 312 is provided within the second texture region 220, and the grating angles of the plurality of second texture regions 220 are randomly set, thereby giving the decorative part 10 a light and shadow effect with a shimmering sand texture. In some embodiments, at least two of the plurality of second texture regions 220 have different heights, and the area of ​​the second texture region 220 is smaller than the area of ​​the grating region 310, thereby giving the decorative part 10 a light and shadow effect with a combination of frosted texture and shimmering sand texture. For example, the second texture region 220 can be constructed as a protrusion protruding from the substrate 100, the area of ​​the end face of the protrusion away from the substrate 100 is smaller than the area of ​​the grating region 310, and a grating structure 312 is provided on the end face of the protrusion away from the substrate 100, and the grating angles of the plurality of second texture regions 220 are randomly set.

[0049] The substrate 100 can be configured as a plate-like structure, a curved structure, or other regular or irregular shapes. Exemplarily, in this embodiment, the substrate 100 is configured as a plate-like structure. The substrate 100 includes a flat and continuous surface. The flat and continuous surface can be planar and / or curved. The grating layer 200 is formed on the flat and continuous surface of the substrate 100, thereby facilitating the processing and shaping of the grating layer 200. The substrate 100 can be configured as, but is not limited to, polycarbonate (PC film) sheets, polyethylene terephthalate (PET) sheets, glass sheets, composite sheets, ceramic sheets, metal sheets, etc. Composite sheets include, but are not limited to, PC composite sheets, fiberglass composite sheets, or other polymer composite sheets. PC composite sheets are, for example, polycarbonate / polymethyl methacrylate (PC / PMMA) composite sheets. The substrate 100 can be made of a transparent material with a certain refractive index. In some embodiments, the substrate 100 may also be made of a non-transparent material, which is not specifically limited in this application.

[0050] Please see Figure 11 , Figure 11 This is a flowchart of a method for preparing the decorative part 10 provided in some embodiments of this application. The method for preparing the decorative part 10 includes:

[0051] Step 101: Obtain the substrate.

[0052] Step 102: Superimpose and composite M grating patterns according to a preset relationship to obtain a grating layer.

[0053] Each grating pattern 300 includes a plurality of grating regions 310 arranged at intervals. At least two of the M grating patterns 300 have different grating angles in their grating regions 310.

[0054] In this configuration, at least one grating region 310 in the (N+1)th grating pattern 300 is superimposed on at least one grating region 310 in the Nth grating pattern, and the grating angle a of the grating region 310 in the Nth grating pattern 300, the grating angle b of the grating region 310 in the (N+1)th grating pattern 300, and the grating angle c of the superimposed area 310c of the grating region 310 in the (N+1)th grating pattern 300 and the grating region 310c of the grating region 310 in the Nth grating pattern 300 satisfy a preset relationship: c = X*a + Y*b. Here, N and M are both integers, and 1 ≤ N ≤ M-2. X represents the first weight, and Y represents the second weight. When the grating angle a of the grating region 310 in the Nth grating pattern 300 is different from the grating angle b of the grating region 310 in the (N+1)th grating pattern 300, the first weight and the second weight satisfy: 0.8 ≤ X + Y ≤ 1. In some embodiments, when the grating angle a of the grating region 310 in the Nth grating pattern 300 is the same as the grating angle b of the grating region 310 in the (N+1)th grating pattern 300, the first weight and the second weight satisfy: 0.8≤X+Y<1.

[0055] Step 103: The grating layer is formed on the substrate to obtain the decorative part.

[0056] In some embodiments, in at least a portion of the first texture region 210, the second weight is greater than or equal to the first weight. For example, the first weight can be 0.3 and the second weight can be 0.7, making the grating angle c of the superposition region 310c in the grating layer 200 closer to the grating angle b of the second grating region 310b, making the texture effect of the grating pattern 300 in the grating layer 200 away from the substrate 100 more obvious, and forming a progressive depth-of-field effect, thereby making the spatial hierarchy of the decorative element 10 more obvious. In some embodiments, the first weight and the second weight can both be 0.5, so as to improve the spatial hierarchy of the decorative element 10 while making the light and shadow effect of the decorative element 10 more uniform.

[0057] This application also provides a housing, which includes a substrate and a decorative element 10 as described in any of the above embodiments. The decorative element 10 is disposed on at least a portion of the surface of the substrate. For example, the decorative element 10 may be disposed on the inner surface of the housing. Alternatively, the housing may include a pattern area and a decorative area, with the decorative element 10 disposed within the decorative area. The shape of the pattern area may be one of a circle, triangle, rectangle, trapezoid, or polygon, or it may be a combination of multiple shapes to form a special pattern or design. The housing has the same beneficial effects as the decorative element 10 in the above embodiments, which will not be repeated here. The housing can be a mobile phone housing, tablet computer housing, laptop computer housing, watch housing, water cup housing, remote control housing, enclosure, protective case for electronic devices, etc. The housing can be a plastic housing, glass housing, metal housing, etc. In some embodiments, the grating layer 200 can be directly transferred onto the substrate using a mold, i.e., the substrate of the housing serves as the base 100 of the grating layer 200.

[0058] This application also provides an electronic device, such as a tablet computer, mobile phone, watch, e-reader, remote control, personal computer (PC), laptop computer, personal digital assistant (PDA), in-vehicle device, smart TV, wearable device, television set, etc. The electronic device includes the aforementioned decorative parts, thereby giving it a colorful and vibrant appearance.

[0059] The manufacturing method of the decorative part 10 will be described below with reference to the decorative part 10 provided in the embodiments of this application. In some embodiments, the manufacturing method of the decorative part 10 includes: designing and superimposing M-layer grating patterns 300 according to a preset relationship using computer software to generate texture data of grating layer 200; preparing a master mold according to the texture data through processes such as grayscale exposure, development and drying, and anti-adhesion; preparing a PC mold according to the master mold using a mold replication machine through a UV adhesive transfer process; replicating the grating layer 200 onto a PET film using a UV transfer machine through a UV adhesive transfer process according to the PC mold to form a PET film with grating layer 200; coating and coloring the PET film; cutting a PET film of a specific shape using a laser cutting device or a CNC cutting device according to the product shape requirements; and bonding the cut PET film to a glass shell or a transparent injection-molded PC shell through a bonding process.

[0060] In some embodiments, the manufacturing method of the decorative part 10 includes: designing and superimposing M-layer grating patterns 300 according to a preset relationship using computer software to generate texture data of grating layer 200; preparing a master mold according to the texture data through processes such as grayscale exposure, development and drying, and anti-adhesion; preparing a PC mold according to the master mold using a mold replication machine through a UV adhesive transfer process; copying the grating layer onto a PC+PMMA composite board using a UV transfer machine through a UV adhesive transfer process according to the PC mold to form a PC+PMMA composite board with grating layer 200; coating and coloring the PC+PMMA composite board; cutting out a PC+PMMA composite board of a specific shape using a laser cutting device or a CNC cutting device according to the product shape requirements; and bonding the cut PETPC+PMMA composite board to a glass shell or a transparent injection-molded PC shell through a bonding process.

[0061] In some embodiments, the manufacturing method of the decorative part 10 includes: designing and superimposing M-layer grating patterns 300 according to a preset relationship using computer software to generate texture data of grating layer 200; preparing a master mold according to the texture data through processes such as grayscale exposure, development and drying, and anti-adhesion; preparing a GDM mold according to the master mold using a mold replication machine through a UV adhesive transfer process; and replicating the grating layer 200 onto a glass shell according to the GDM mold through a transfer process to obtain a glass shell with grating layer 200.

[0062] In some embodiments, the manufacturing method of the decorative part 10 includes: designing and superimposing M-layer grating patterns 300 according to a preset relationship using computer software to generate texture data of the grating layer 200; uniformly coating photoresist on a glass substrate, and curing the photoresist according to the texture data through grayscale exposure, development, and other processes; and placing the glass substrate into an etching tank containing chemical solutions to obtain a glass substrate with the grating layer 200. Due to the protective effect of the photoresist on the glass substrate, the thinner portions of the photoresist on the glass substrate are etched by the chemical solutions first, along with the thicker portions, thus forming an uneven textured structure on the surface of the glass substrate, i.e., forming the grating layer 200.

[0063] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0064] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A decorative element, characterized in that, include: A substrate and a grating layer disposed on the substrate, the grating layer comprising a plurality of first texture regions, at least a portion of the first texture regions being formed by superimposing and compositing M grating patterns according to a preset relationship; each grating pattern comprising a plurality of grating regions arranged at intervals, wherein the grating angles of the grating regions on at least two of the M grating patterns are different; Wherein, at least one grating region in the (N+1)th grating pattern is superimposed on at least one grating region in the Nth grating pattern, and the grating angle a of the grating region in the Nth grating pattern, the grating angle b of the grating region in the (N+1)th grating pattern, and the grating angle c of the superimposed area of ​​the grating region in the (N+1)th grating pattern and the grating region in the Nth grating pattern satisfy a preset relationship: c=X*a+Y*b; N and M are integers, and 1≤N≤M-2; X represents the first weight, and Y represents the second weight; when the grating angle a of the grating region in the Nth grating pattern is different from the grating angle b of the grating region in the (N+1)th grating pattern, the first weight and the second weight satisfy: 0.8≤X+Y≤1.

2. The decorative component according to claim 1, characterized in that, When the grating angle a in the grating region of the Nth grating pattern is the same as the grating angle b in the (N+1)th grating pattern, the first weight and the second weight satisfy: 0.8 ≤ X + Y < 1.

3. The decorative component according to claim 1, characterized in that, In at least a portion of the first texture region, the second weight is greater than or equal to the first weight.

4. The decorative component according to claim 3, characterized in that, In at least a portion of the first texture region, the first weight is 0.3 and the second weight is 0.7, or both the first weight and the second weight are 0.

5.

5. The decorative element according to claim 1, characterized in that, The grating angles of multiple grating regions in each grating pattern are the same; or, the grating angles of at least two grating regions in each grating pattern are different.

6. The decorative element according to claim 1, characterized in that, The shapes of the plurality of grating regions in each grating pattern are similar, and the shapes of the plurality of grating regions in different grating patterns are similar, or the shapes of the plurality of grating regions in at least one grating pattern are dissimilar to the shapes of the plurality of grating regions in other grating patterns; or, In at least one of the plurality of grating regions in the grating pattern, the shape of at least one grating region is dissimilar to the shapes of the other grating regions.

7. The decorative element according to claim 1, characterized in that, It also includes a plurality of second texture areas arranged in a scattered pattern on the substrate, wherein the second texture areas are arranged adjacent to the first texture area, and / or the second texture areas are embedded within the first texture area; at least two of the plurality of second texture areas have different heights, and / or the area of ​​the second texture area is smaller than the area of ​​the grating area.

8. The decorative element according to claim 1, characterized in that, Each of the grating regions in each of the grating patterns is superimposed on at least one of the grating regions in at least one other grating pattern.

9. The decorative element according to claim 1, characterized in that, The substrate includes a textured surface facing the grating layer, the grating layer is formed on the textured surface, and the grating area and the superposition area completely cover the textured surface.

10. The decorative element according to claim 1, characterized in that, The grating region includes multiple grating structures spaced apart, the width of which is 30μm-60μm and the height of which is 0.5μm-20μm.

11. The decorative element according to claim 1, characterized in that, The grating height of the superimposed area is greater than or equal to the grating height of the grating area; and / or, the grating width of the superimposed area is greater than or equal to the grating width of the grating area.

12. The decorative element according to claim 1, characterized in that, The sum of the first weight and the second weight is less than 1, the grating angles between two adjacent grating regions are different, or the grating angles between adjacent grating regions and the superimposed region are different.

13. An electronic device, characterized in that, Includes the decorative element as described in any one of claims 1-12.

14. A method for preparing a decorative part, characterized in that, include: Obtain the matrix; M grating patterns are superimposed and composited according to a preset relationship to obtain a grating layer; Each grating pattern includes multiple grating regions. At least two of the M grating patterns have different grating angles in their grating regions. At least one grating region in the (N+1)th grating pattern is superimposed on at least one grating region in the Nth grating pattern. The grating angle *a* of the grating region in the Nth grating pattern, the grating angle *b* of the grating region in the (N+1)th grating pattern, and the grating angle *c* of the superimposed area of ​​the grating regions in the (N+1)th and Nth grating patterns satisfy a preset relationship: *c* = X*a + Y*b. N and M are integers, and 1 ≤ N ≤ M-2. X represents the first weight, and Y represents the second weight. When the grating angle *a* of the grating region in the Nth grating pattern differs from the grating angle *b* of the grating region in the (N+1)th grating pattern, the first weight and the second weight satisfy: 0.8 ≤ X + Y ≤ 1. The grating layer is formed on the substrate to obtain the decorative part.

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