Decorative films, light-emitting modules, and electronic devices

Abstract

This invention provides a decorative film, a light-emitting module, and an electronic device. The decorative film is used to cover the light-emitting surface of a light-emitting element. The decorative film includes a film body made of a transparent or translucent material and a decorative layer disposed on the film body. The decorative layer includes a textured layer and / or a translucent colored ink layer, wherein the textured layer is transparent or translucent. When the light-emitting element is not emitting light, the textured layer enables the decorative film to exhibit at least one of the following appearance effects: pattern effect, glossy effect, matte effect, and color-changing effect. The translucent colored ink layer enables the decorative film to exhibit the same color as the translucent colored ink layer. When the decorative film is applied to a light-emitting module, it covers the light-emitting surface of the light-emitting element, not only protecting the light-emitting element but also decorating the light-emitting module when it is not emitting light.

Description

Technical Field

[0001] This invention belongs to the field of decorative component technology, and particularly relates to a decorative film, a light-emitting module, and an electronic device. Background Technology

[0002] Currently, the light-emitting modules of electronic devices such as mobile phones and tablets typically consist of LED light strips and films. The films are molded onto the LED light strips using inks with strong adhesion. However, the films in existing light-emitting modules lack decorative effects, resulting in a poor visual experience for users. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention provides a decorative film, a light-emitting module, and an electronic device. The decorative film is used to cover the light-emitting surface of the light-emitting element, which not only protects the light-emitting element but also serves a decorative purpose, thereby providing users with a good visual experience.

[0004] To achieve the above objectives, in a first aspect, the present invention provides a decorative film for covering the light-emitting surface of a light-emitting element, the decorative film comprising:

[0005] The diaphragm body is made of a transparent or translucent material; and

[0006] A decorative layer disposed on the diaphragm body, the decorative layer comprising a textured layer and / or a semi-transparent colored ink layer, the textured layer being transparent or semi-transparent;

[0007] When the light-emitting element is not emitting light, the texture layer enables the decorative film to present at least one of the following appearance effects: pattern effect, dazzling effect, matte effect, and color-changing effect. The semi-transparent colored ink layer enables the decorative film to present the same color as the semi-transparent colored ink layer.

[0008] In one embodiment, the decorative layer includes a textured layer disposed on the surface of the film body away from the light-emitting element. The textured layer includes a first textured layer and a second textured layer. The first textured layer is used to present a first appearance effect, and the second textured layer is used to present a second appearance effect. The first appearance effect and the second appearance effect are different.

[0009] In one embodiment, the second texture layer includes a plurality of microstructures disposed on the surface of the film body away from the light-emitting element, and a brightening film for covering the plurality of microstructures. Each microstructure has at least one reflective surface, and the angle between the reflective surface and the film body is greater than 90 degrees. The second texture layer is used to present a dazzling effect.

[0010] The first texture layer is disposed on the surface of the brightening film away from the film body. The first texture layer includes at least one stripe texture among straight texture, coil texture, and wave texture. The first texture layer is used to present a pattern effect.

[0011] In one embodiment, the decorative layer includes a translucent colored ink layer disposed on at least one side surface of the film body in the thickness direction, wherein when the decorative layer includes the texture layer, the translucent colored ink layer is located on the side of the texture layer closer to the light-emitting element.

[0012] In one embodiment, the decorative layer further includes a uniform ink layer disposed on at least one side surface of the film body in the thickness direction, wherein when the decorative layer includes the texture layer, the uniform ink layer is located on the side of the texture layer closer to the light-emitting element.

[0013] In one embodiment, the uniform gloss ink layer includes a first uniform gloss ink layer and a second uniform gloss ink layer;

[0014] The first uniform light ink layer and the second uniform light ink layer are respectively disposed on opposite sides of the translucent colored ink layer in the thickness direction; or, the first uniform light ink layer and the second uniform light ink layer are stacked on top of each other and disposed between the translucent colored ink layer and the film body; or, the first uniform light ink layer and the second uniform light ink layer are stacked on top of each other and disposed on the side of the translucent colored ink layer away from the film body.

[0015] In one embodiment, the decorative film further includes a light-transmitting adhesive layer located on the side of the film body and the decorative layer near the light-emitting element, the adhesive layer being used to bond the light-emitting surface of the light-emitting element.

[0016] In one embodiment, the adhesive layer is made of printing ink, and the adhesive layer is bonded to the light-emitting surface of the light-emitting element by hot pressing;

[0017] Alternatively, the adhesive layer may be made of transparent or white OCA adhesive, and the adhesive layer may be directly bonded to the light-emitting surface of the light-emitting element.

[0018] Secondly, the present invention provides a light-emitting module, including a light-emitting element and a decorative film as described in any of the above embodiments, wherein the decorative film covers the light-emitting surface of the light-emitting element.

[0019] In one embodiment, the light-emitting element includes a circuit board, a plurality of light-emitting chips disposed on the circuit board, and a light conversion dielectric layer for covering the plurality of light-emitting chips, wherein the surface of the light conversion dielectric layer away from the circuit board is the light-emitting surface of the light-emitting element.

[0020] In one embodiment, the plurality of light-emitting chips include at least one of LED, Mini-LED and Micro-LED, and the light conversion medium layer is a phosphor layer or a QD adhesive layer.

[0021] Thirdly, the present invention provides an electronic device, including a housing and a light-emitting module as described in any of the above embodiments, wherein the housing has a transparent area, and the light-emitting module is located inside the housing and is visible through the transparent area and displayed on the housing.

[0022] In one embodiment, the electronic device further includes an electronic component disposed inside the housing, the electronic component being visible through the transparent area and displayed on the housing, and the light-emitting module being disposed around the electronic component.

[0023] Compared with the prior art, the present invention has the following advantages: By setting the decorative layer on the body of the decorative film, the decorative layer includes a semi-transparent colored ink layer and / or a transparent or semi-transparent texture layer. When the light-emitting element is not emitting light, the texture layer can give the decorative film at least one aesthetic effect, and the semi-transparent colored ink layer can give the decorative film the same color as the semi-transparent colored ink layer, thereby enhancing the aesthetic appearance of the decorative film and providing users with a good visual experience. Furthermore, when the decorative film is applied to a light-emitting module, the decorative film covers the light-emitting surface of the light-emitting element, which not only protects the light-emitting element but also serves a decorative function for the light-emitting module when it is not emitting light.

[0024] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of a light-emitting module provided in one embodiment of the present invention.

[0027] Figure 2 yes Figure 1 The diagram shows a structural schematic of the decorative film in one embodiment.

[0028] Figure 3 yes Figure 1 The decorative film shown is a structural schematic diagram in another embodiment.

[0029] Figure 4 yes Figure 1 The diagram shows the structure of the decorative film in another embodiment.

[0030] Figure 5 This is a schematic diagram of the structure of an electronic device provided in one embodiment of the present invention.

[0031] Explanation of key component symbols:

[0032] Light-emitting module 1

[0033] Light-emitting element 20

[0034] Circuit board 21

[0035] LED chip 23

[0036] Light conversion dielectric layer 25

[0037] Decorative film 40

[0038] diaphragm body 41

[0039] Texture layer 43

[0040] First texture layer 431

[0041] Second texture layer 432

[0042] Microstructure 4321

[0043] Brightening film 4323

[0044] Ink layer 45

[0045] First uniform ink layer 451

[0046] Second uniform gloss ink layer 452

[0047] Semi-transparent colored ink layer 453

[0048] Adhesive layer 47

[0049] Electronic devices 2

[0050] Casing 60

[0051] Transparent area 61

[0052] Camera module 81

[0053] Wireless charging module 82

[0054] The following detailed description, in conjunction with the accompanying drawings, further illustrates the present invention. Detailed Implementation

[0055] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0056] Please see Figure 1 This invention provides a light-emitting module 1, including a light-emitting element 20 and a decorative film 40, wherein the decorative film 40 covers the light-emitting surface of the light-emitting element 20. Figure 1 As shown, in one embodiment of the present invention, the light-emitting element 20 includes a circuit board 21, a plurality of light-emitting chips 23 disposed on the circuit board 21, and a light conversion dielectric layer 25 for covering the plurality of light-emitting chips 23. The surface of the light conversion dielectric layer 25 away from the circuit board 21 is the light-emitting surface of the light-emitting element 20. It can be understood that the circuit board 21 can drive each of the light-emitting chips 23 to emit light or not emit light, and can drive all or some of the light-emitting chips 23 to emit light as needed.

[0057] In embodiments of the present invention, the circuit board 21 may be a printed circuit board or a flexible circuit board, preferably a flexible circuit board. The light-emitting module 1 made using a flexible circuit board as a carrier can be bent and folded as needed, making it suitable for various occasions and enhancing the applicability of the light-emitting module 1.

[0058] In embodiments of the present invention, each of the light-emitting chips 23 may be an LED, a Mini-LED, or a Micro-LED, and the plurality of light-emitting chips 23 may include at least one of LED, Mini-LED, and Micro-LED. Figure 1 In the illustrated embodiment, the plurality of light-emitting chips 23 are preferably all small-sized Mini-LEDs, which can reduce the overall thickness of the light-emitting element 20 (i.e., the dimension in the direction perpendicular to the circuit board 21), thereby reducing the thickness of the light-emitting module 1. Moreover, since the plurality of light-emitting chips 23 are all of the same type of light-emitting element, the design difficulty of the driving circuit of the circuit board 21 can also be reduced.

[0059] In an embodiment of the present invention, the light conversion medium layer 25 can be an existing fluorescent adhesive layer or an existing QD adhesive layer. The light conversion medium layer 25 is used to convert the three primary colors of light (blue light, red light or green light) emitted by the light-emitting chip 23 into light of other colors, generally white light. Its specific conversion principle is the same as that of the existing fluorescent adhesive layer or QD adhesive layer, and will not be described in detail.

[0060] It is important to note that, in the embodiments of the present invention, the decorative film 40 covers the light-emitting surface of the light-emitting element 20, which not only protects the light-emitting element 20, but also serves to transmit the light emitted by the light-emitting element 20 when it emits light, and to provide a decorative effect when the light-emitting element 20 does not emit light.

[0061] Specifically, please refer to Figure 1 and Figure 2 In one embodiment of the present invention, the decorative film 40 includes a film body 41 made of a transparent or translucent material and a decorative layer disposed on the surface of the film body 41 away from the light-emitting element 20, the decorative layer being translucent so that the light emitted by the light-emitting element 20 can pass through.

[0062] The material of the diaphragm body 41 includes, but is not limited to, glass, PMMA, PET, etc.

[0063] The decorative layer includes a texture layer 43 and / or a semi-transparent colored ink layer 453, wherein the texture layer 43 is transparent or semi-transparent. When the light-emitting element 20 is not emitting light, the texture layer 43 is used to present an appearance effect under external light, which is not limited to at least one of pattern effect, glare effect, matte effect, and color-changing effect, thereby enabling the decorative film 40 to present at least one appearance effect; when the light-emitting element 20 is not emitting light, the semi-transparent colored ink layer 453 enables the decorative film 40 to present the same color as the semi-transparent colored ink layer 453.

[0064] It is understood that by providing the decorative layer on the film body 41 of the decorative film 40, the decorative layer including the translucent colored ink layer 453 and / or the transparent or translucent texture layer 43, the decorative film 40 can present color and / or at least one appearance effect when the light-emitting element 20 is not emitting light, thereby enhancing the aesthetic appearance of the decorative film 40 and providing users with a good visual experience. Furthermore, when the decorative film 40 is applied to the light-emitting module 1, the decorative film 40 covers the light-emitting surface of the light-emitting element 20, which not only protects the light-emitting element 20 but also serves a decorative function for the light-emitting module 1 when it is not emitting light.

[0065] Preferably, such as Figure 2As shown, in one embodiment of the present invention, the decorative layer of the decorative film 40 includes a textured layer 43 disposed on the surface of the film body 41 away from the light-emitting element 20. The textured layer 43 includes a first textured layer 431 and a second textured layer 432, wherein the first textured layer 431 is used to present a first appearance effect, and the second textured layer 432 is used to present a second appearance effect, and the first appearance effect and the second appearance effect are different. In this embodiment, by providing different textured layers on the film body 41, the decorative film 40 can present a combination of different appearance effects when the light-emitting element 20 is not emitting light, which is beneficial to further improve the aesthetic appearance of the decorative film 40.

[0066] Specifically, such as Figure 2 As shown, in one embodiment of the present invention, the second texture layer 432 includes a plurality of microstructures 4321 disposed on the surface of the film body 41 away from the light-emitting element 20, and a brightening film 4323 for covering the plurality of microstructures 4321. Each microstructure 4321 has at least one reflective surface, and the angle between the reflective surface and the film body 41 is greater than 90 degrees. The second texture layer 432 is used to present a dazzling effect. The first texture layer 431 is disposed on the brightening film 4323. The first texture layer 431 includes at least one stripe texture among linear texture, coil texture, and wave texture. The stripe texture can be arranged according to a preset pattern, so that the first texture layer 431 is used to present a pattern effect.

[0067] In this embodiment, by sequentially forming the second texture layer 432 and the first texture layer 431 on the film body 41 of the decorative film 40, when the light-emitting element 20 is not emitting light and light shines on the decorative film 40, the texture pattern of the first texture layer 431 can be clearly presented, allowing the user to see a preset pattern corresponding to the texture on the first texture layer 431, thus enhancing the aesthetics of the decorative film 40. Furthermore, light can pass through the transparent or semi-transparent first texture layer 431 and further illuminate the second texture layer 432. Since the second texture layer 432 includes multiple microstructures 4321 with reflective surfaces, the light illuminating the decorative film 40 can be reflected from multiple angles and its brightness can be increased under the action of the brightening film 4323, thereby presenting a dazzling effect and reducing the visual blind spots of the decorative film 40, thus improving the brightness of the decorative film 40. In addition, there is a certain optical path difference between the reflected light of the first texture layer 431 and the second texture layer 432, which makes the brightness of the reflected light of different texture layers different. This can increase the contrast between different texture layers of the decorative film 40, so that the appearance effects of different texture layers are superimposed, the layers are more distinct, and the spatial three-dimensional effect is stronger.

[0068] It should be noted that the brightening film 4323 in the second texture layer 432 can be formed using existing coating processes. The brightening film 4323 covers the plurality of microstructures 4321, which not only increases the brightness of the light reflected by the microstructures 4321, thereby further improving the brightness of the decorative film 40, but also improves the flatness of the second texture layer 432 by covering the microstructures 4321 with the brightening film 4323. A flat second texture layer 432 is more conducive to the formation of the first texture layer 431. It should also be noted that both the first texture layer 431 and the second texture layer 432 can be prepared using any existing texture forming process, including but not limited to printing, pad printing, CNC machining, etc. In embodiments of the present invention, the first texture layer 431 and the second texture layer 432 can be formed by printing UV texture adhesive. By adjusting the thickness of the printed UV texture adhesive and controlling the printing process, a texture layer with a certain thickness can be formed to obtain a better texture effect.

[0069] Optionally, such as Figure 2 As shown, in an embodiment of the present invention, each microstructure 4321 in the second texture layer 432 may be, but is not limited to, a pyramidal structure or a frustum structure. Specifically, in Figure 2In the illustrated embodiment, the plurality of microstructures 4321 are a plurality of square pyramid structures arranged in an array, each of the microstructures 4321 comprising four reflective surfaces (i.e., the side surfaces of the square pyramid). Of course, the plurality of microstructures 4321 may also be a plurality of triangular pyramid structures, or a plurality of pentagonal pyramid structures, or other pyramid structures with multiple reflective surfaces arranged in an array; there is no limitation on this. Figure 2 In the illustrated embodiment, each microstructure 4321 in the second texture layer 432 has multiple reflective surfaces, thereby enabling multi-angle reflection of light. This allows the user to receive light reflected from the decorative film 40 over a wide range, improving the brightness and smoothness of the decorative film 40. Of course, in other embodiments, the microstructures 4321 can also be several frustum structures arranged in an array, each microstructure 4321 containing an annular reflective surface (i.e., the annular cone surface of the frustum structure), which similarly enables multi-angle reflection of light and improves the brightness and smoothness of the decorative film 40. Further details are omitted here.

[0070] It is understood that, in the embodiments of the present invention, each of the microstructures 4321 has an angle exceeding 90 degrees between its reflective surface and the diaphragm body 41. If the angle is too small, meaning the reflective surface is too tilted relative to the diaphragm body 41, the user can only receive the light reflected from the reflective surface from a side view, reducing the perceived surface smoothness of the decorative diaphragm 40. Conversely, if the angle is too large, meaning the reflective surface is too tilted relative to the diaphragm body 41, the user can only receive the light reflected from the reflective surface from a frontal or near-frontal view, but since the user often views the decorative diaphragm 40 from the side, this reduces the brightness of the decorative diaphragm 40. Therefore, the angle between the reflective surface of each microstructure 4321 and the diaphragm body 41 should be reasonably designed, preferably within the range of 120-160 degrees.

[0071] Furthermore, in Figure 2 In one embodiment shown, the decorative layer of the decorative film 40 further includes a translucent colored ink layer 453 disposed on at least one surface of the film body 41 in the thickness direction. The translucent colored ink layer 453 is located on the side of the texture layer 43 closer to the light-emitting element 20. Specifically, in Figure 2 In the illustrated embodiment, the decorative layer includes a translucent colored ink layer 453 disposed on the surface of the film body 41 near the light-emitting element 20.

[0072] It is easy to understand that by placing the translucent colored ink layer 453 on the side of the texture layer 43 close to the light-emitting element 20, the translucent colored ink layer 453 can be prevented from obscuring the texture layer 43 and weakening the appearance of the texture layer 43. Moreover, the shimmering effect generated by the second texture layer 432, under the reflection of the translucent colored ink layer 453, can make at least a part of the decorative film 40 display a dazzling color. Furthermore, depending on the user's viewing angle, the area and color of the decorative film 40 that produce the dazzling effect will also change.

[0073] Furthermore, in Figure 2 In one embodiment shown, the decorative layer of the decorative film 40 further includes a uniform light ink layer disposed on at least one side surface of the film body 41 in the thickness direction. By providing the uniform light ink layer on the decorative film 40, the light passing through the uniform light ink layer can be uniformly dispersed when the light-emitting element 20 emits light, thereby improving the light emission uniformity of the light-emitting module 1.

[0074] Similarly, to avoid the uniform light ink layer obscuring the texture layer 43 and thus weakening its appearance, the uniform light ink layer is located on the side of the texture layer 43 closest to the light-emitting element 20. To reduce the processing difficulty of forming the translucent colored ink layer 453 and the uniform light ink layer, the uniform light ink layer is preferably disposed on the side of the film body 41 closest to the light-emitting element 20, and adjacent to the translucent colored ink layer 453.

[0075] Optionally, in embodiments of the present invention, the uniform light-dissipating ink layer may be provided in one or more layers. Compared with providing a single layer of uniform light-dissipating ink layer, providing multiple layers of uniform light-dissipating ink layer can further improve the light emission uniformity of the light-emitting module 1.

[0076] Preferably, in Figure 2 In the illustrated embodiment, the uniform gloss ink layer includes a first uniform gloss ink layer 451 and a second uniform gloss ink layer 452, and the first uniform gloss ink layer 451, the second uniform gloss ink layer 452 and the semi-transparent colored ink layer 453 constitute the ink layer 45 in the decorative layer.

[0077] The semi-transparent colored ink layer 453 can be formed using existing semi-transparent colored inks through printing or other methods. Similarly, any of the uniform gloss ink layers can be formed using existing uniform gloss inks (usually white inks) through printing or other methods. This will not be elaborated further.

[0078] Optionally, such as Figure 2As shown, in one possible implementation, the first uniform light ink layer 451 and the second uniform light ink layer 452 are stacked on top of each other and disposed on the side of the translucent colored ink layer 453 away from the film body 41. Figure 3 As shown, in another possible embodiment, the first uniform gloss ink layer 451 and the second uniform gloss ink layer 452 are respectively disposed on opposite sides of the translucent colored ink layer 453 in the thickness direction. Figure 4 As shown, in another possible embodiment, the first uniform ink layer 451 and the second uniform ink layer 452 are stacked on top of each other and disposed between the translucent colored ink layer 453 and the film body 41.

[0079] Please refer to it again. Figure 2 In one embodiment of the present invention, the decorative film 40 further includes a light-transmitting adhesive layer 47, which is located on the side of the film body 41 and the decorative layer near the light-emitting element 20, and is used to adhere the light-emitting surface of the light-emitting element 20. Specifically, in Figure 2 In the example, the adhesive layer 47 is located on the side of the ink layer 45 closer to the light-emitting element 20.

[0080] Optionally, in an embodiment of the present invention, the adhesive layer 47 may be made of printing ink with high adhesion, and the adhesive layer 47 is bonded to the light-emitting surface of the light-emitting element 20 by hot pressing. The adhesive layer 47 uses printing ink with high adhesion and is disposed adjacent to the ink layer 45, which helps to further reduce the difficulty of ink formation.

[0081] Of course, in other embodiments, the adhesive layer 47 can also be made of transparent or white OCA adhesive, and the adhesive layer 47 is directly bonded to the light-emitting surface of the light-emitting element 20.

[0082] Further, please refer to Figure 5 The embodiments of the present invention also provide an electronic device 2, which may be, but is not limited to, a mobile phone, a tablet, a display, or other electronic devices. Specifically, the electronic device 2 includes a housing 60 and a light-emitting module 1 as described in any of the above embodiments. The housing 60 is provided with a transparent area 61, and the light-emitting module 1 is located inside the housing 60 and is visible through the transparent area 61 on the housing 60.

[0083] It should be noted that, similar to existing electronic devices, the electronic device 2 also includes a control module, a camera module, a wireless charging module, a memory, sensors, and other electronic components, which will not be elaborated upon. The circuit board 21 of the light-emitting element 20 in the light-emitting module 1 can be electrically connected to the control module of the electronic device 2. The control module can control the light-emitting chip 23 on the circuit board 21 to emit or not emit light, thereby using the light-emitting chip 23 to indicate the charging status, new information, and other states of the electronic device 2, realizing interaction between the light-emitting module 1 and the electronic device 2.

[0084] like Figure 5 As shown, in an embodiment of the present invention, the housing 60 includes a back cover opposite to the display screen of the electronic device 2, and a middle frame for fixing the display screen and the back cover. Optionally, both the back cover and the middle frame may be made wholly or partially of a transparent material (not limited to glass, transparent plastic, etc.), and the transparent portions of the back cover and the middle frame constitute the transparent area 61. Figure 5 In the illustrated embodiment, the entire back cover of the housing 60 is made of transparent material, i.e., the entire back cover is a transparent area 61. Making the entire back cover into the transparent area 61 not only facilitates processing and manufacturing, but also allows multiple electronic components inside the electronic device 2, such as the camera module 81 and the wireless charging module 82, to be visually displayed on the housing 60 through the transparent back cover (i.e., the transparent area 61). This allows users to see various electronic components and their arrangement on the back of the electronic device 2, which helps to enhance the technological feel and overall aesthetics of the electronic device 2.

[0085] Preferably, in an embodiment of the invention, the light-emitting module 1 is provided around the electronic components visually displayed on the housing 60. For example, in Figure 5 In the illustrated embodiment, both the camera module 81 and the wireless charging module 82 of the electronic device 2 are visualized on the housing 60 through the transparent area 61, and each is surrounded by a light-emitting module 1. Thus, when the camera module 81 is used to take a picture, the control module of the electronic device 2 can control the light-emitting modules 1 around the camera module 81 to provide supplementary lighting, improving the picture quality and avoiding defects such as overexposure from the built-in flash of the electronic device 2. Similarly, when the wireless charging module 82 is used for charging, the control module of the electronic device 2 can control the light-emitting modules 1 around the wireless charging module 82 to provide a prompt, indicating the current charging progress of the electronic device 2 to the user.

[0086] In other embodiments, the electronic device 2 may also have multiple light-emitting modules 1 arranged at different positions inside the housing 60, so that the multiple light-emitting modules 1 together form a preset pattern, which will not be elaborated further.

[0087] It is understood that in the electronic device 2, the decorative film 40 in the light-emitting module 1 can be the decorative film 40 described in any of the above embodiments, and therefore has at least all the beneficial effects brought about by the technical solutions of the above embodiments. In other words, the decorative film 40 can play a decorative role when the light-emitting element 20 is not emitting light and can be visually displayed on the housing 60, thereby enhancing the aesthetic appearance of the electronic device 2. For a more specific description, please refer to the relevant content of the decorative film 40 in the foregoing embodiments, which will not be repeated here.

[0088] In the description of this invention, the terms "embodiment," "specific embodiment," "example," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0089] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A decorative film for covering the light-emitting surface of a light-emitting element, characterized in that, The decorative film includes: The diaphragm body is made of a transparent or translucent material; and A decorative layer disposed on the diaphragm body, the decorative layer comprising a texture layer and a semi-transparent colored ink layer, the texture layer being transparent or semi-transparent; When the light-emitting element is not emitting light, the texture layer enables the decorative film to present a pattern effect and a dazzling effect, and the semi-transparent colored ink layer enables the decorative film to present the same color as the semi-transparent colored ink layer; The decorative layer includes a textured layer disposed on the surface of the diaphragm body away from the light-emitting element. The textured layer includes a first textured layer and a second textured layer. The first textured layer is used to present a first appearance effect, and the second textured layer is used to present a second appearance effect. The first appearance effect and the second appearance effect are different. The second textured layer includes a plurality of microstructures disposed on the surface of the diaphragm body away from the light-emitting element, and a brightness enhancement film for covering the plurality of microstructures. Each microstructure has at least one reflective surface, and the angle between the reflective surface and the diaphragm body is greater than 90 degrees. The microstructures are arranged in an array of pyramidal or frustum structures. The microstructures are used to achieve multi-angle reflection of light, and the second textured layer is used to present a glare effect. The first textured layer is disposed on the surface of the brightness enhancement film away from the diaphragm body. The first textured layer includes at least one stripe texture selected from linear texture, coil texture, and wavy texture. The first textured layer is used to present a pattern effect.

2. The decorative film as described in claim 1, characterized in that, The decorative layer includes a translucent colored ink layer disposed on at least one side surface of the film body in the thickness direction, wherein the translucent colored ink layer is located on the side of the texture layer closer to the light-emitting element.

3. The decorative film as described in claim 2, characterized in that, The decorative layer further includes a uniform ink layer disposed on at least one side surface of the film body in the thickness direction, wherein the uniform ink layer is located on the side of the texture layer closer to the light-emitting element.

4. The decorative film as described in claim 3, characterized in that, The uniform gloss ink layer includes a first uniform gloss ink layer and a second uniform gloss ink layer; The first uniform light ink layer and the second uniform light ink layer are respectively disposed on opposite sides of the translucent colored ink layer in the thickness direction; or, the first uniform light ink layer and the second uniform light ink layer are stacked on top of each other and disposed between the translucent colored ink layer and the film body; or, the first uniform light ink layer and the second uniform light ink layer are stacked on top of each other and disposed on the side of the translucent colored ink layer away from the film body.

5. The decorative film as described in claim 1, characterized in that, The decorative film also includes a light-transmitting adhesive layer, which is located on the side of the film body and the decorative layer close to the light-emitting element, and is used to bond the light-emitting surface of the light-emitting element.

6. The decorative film as described in claim 5, characterized in that, The adhesive layer is made of printing ink and is bonded to the light-emitting surface of the light-emitting element by hot pressing; or, the adhesive layer is made of transparent or white OCA adhesive and is directly bonded to the light-emitting surface of the light-emitting element.

7. A light-emitting module, characterized in that, It includes a light-emitting element and a decorative film as described in any one of claims 1-6, wherein the decorative film covers the light-emitting surface of the light-emitting element.

8. The light-emitting module as described in claim 7, characterized in that, The light-emitting element includes a circuit board, a plurality of light-emitting chips disposed on the circuit board, and a light conversion medium layer for covering the plurality of light-emitting chips, wherein the surface of the light conversion medium layer away from the circuit board is the light-emitting surface of the light-emitting element.

9. The light-emitting module as described in claim 8, characterized in that, The plurality of light-emitting chips include at least one of LED, Mini-LED and Micro-LED, and the light conversion medium layer is a phosphor layer or a QD adhesive layer.

10. An electronic device, characterized in that, The device includes a housing and a light-emitting module as described in any one of claims 7-9, wherein the housing has a transparent area, and the light-emitting module is located inside the housing and is visible through the transparent area on the housing.

11. The electronic device as claimed in claim 10, characterized in that, The electronic device also includes electronic components disposed inside the housing, the electronic components being visible through the transparent area and displayed on the housing, and the light-emitting module being disposed around the electronic components.

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