Diaphragm, shell and electronic equipment

Abstract

The embodiment of the utility model provides a diaphragm, a shell and electronic equipment, and belongs to the technical field of electronic equipment, the diaphragm comprises a connecting layer, a base material layer and a first coloring layer which are stacked, the base material layer and the first coloring layer are provided with a first color changing area and a second color changing area respectively, and the first color changing area and the second color changing area are used for presenting different appearance colors under different conditions. The appearance color of the diaphragm can be changed along with the change of environmental conditions, the diaphragm is endowed with a special color-variable appearance effect, the flexibility of the appearance effect design of the diaphragm is improved, the unique appearance can be presented, and good interactivity is achieved. The first color changing area and the second color changing area which are located in different layers can generate three-dimensional spatial impression, so that the diaphragm can achieve the visual effect of spatial stereoscopic impression, the appearance color or shape pattern of the diaphragm can present the impression similar to the shape pattern in a three-dimensional space, the multi-layer and multi-dimensional appearance effect is achieved, and the application range of the diaphragm is widened. The high requirement of a user on the appearance effect of the electronic equipment is met.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to a diaphragm, a housing, and an electronic device. Background Art

[0002] With the continuous advancement of science and technology, more and more electronic devices, such as smartphones, tablets, laptops, and smart wearable devices, have entered people's lives. To meet users' ultimate pursuit of user experience, the appearance of electronic devices has gradually become one of the core competitive advantages of electronic devices.

[0003] Currently, one of the primary solutions for achieving color effects and other visual effects on electronic device casings is decorative film. For example, an electronic device casing may include a base casing and a decorative film affixed to the base casing, which imparts the desired color to the entire casing. Typically, a decorative film comprises a transparent film substrate and an ink layer. For example, an adhesive layer and an ink layer may be laminated on opposite sides of the film substrate. The ink layer imparts the desired color to the decorative film, and the adhesive layer allows the decorative film to be bonded and secured to the base casing, thereby assembling a casing with a desired color effect and other visual effects.

[0004] However, the above-mentioned shell appearance effect designs are relatively simple, and are mostly immutable static effects. The shell appearance effects are highly homogenized, and it is difficult to meet users' high demands for the appearance effects of electronic devices. Utility Model Content

[0005] The embodiments of the present application provide a diaphragm, a housing, and an electronic device. The appearance color of the diaphragm can change as the environmental conditions change, enriching the appearance effect of the diaphragm. The appearance effect of the diaphragm is dynamically variable, presenting a unique appearance and a good interactive effect.

[0006] A first aspect of an embodiment of the present application provides a membrane comprising a substrate layer, a connecting layer, and a first colored layer, wherein the connecting layer is disposed on one side of the substrate layer, and the first colored layer is disposed on a side of the substrate layer facing away from the connecting layer. For example, the connecting layer, substrate layer, and first colored layer may be stacked along the thickness direction.

[0007] The substrate layer includes a first color-changing region, and the first colored layer includes a second color-changing region. The first and second color-changing regions are configured to present different appearance colors under different environmental conditions. The appearance color may include the appearance color, brightness and vividness of the color, saturation, and hue (warmth or coolness). That is, as the external environmental conditions of the diaphragm change, the appearance color of the first color-changing region of the substrate layer will change, resulting in a partially or entirely color-changing appearance effect on the substrate layer. As the environmental conditions change, the appearance color of the second color-changing region of the first colored layer will change, resulting in a partially or entirely color-changing appearance effect on the first colored layer.

[0008] The first color-changing region of the substrate layer and the second color-changing region of the first colored layer can be used to impart a color change to the diaphragm, allowing the diaphragm to change color under different environmental conditions. This gives the diaphragm a unique color-changing appearance, enriching the diaphragm's appearance and increasing the flexibility of its design, helping to meet the high demands of users. Furthermore, the diaphragm's appearance is dynamically changeable, presenting a unique appearance and providing excellent interactive effects.

[0009] The first color-changing area and the second color-changing area are formed in the laminated substrate layer and the first coloring layer respectively. The first color-changing area and the second color-changing area have a certain spatial difference. For example, in the thickness direction, the first color-changing area and the second color-changing area are respectively located in two layers. In this way, a three-dimensional spatial perception can be generated by the first color-changing area and the second color-changing area in different layers, so that the diaphragm can achieve a spatial three-dimensional visual effect. For example, by designing the appearance color, shape and layout position of the first color-changing area and the second color-changing area, a three-dimensional appearance effect can be achieved, so that the appearance color or shape pattern of the diaphragm can present a perception of a shape pattern in a three-dimensional space (or called a three-dimensional space), achieving a multi-level and multi-dimensional appearance effect, further enriching the appearance design of the diaphragm, and meeting the user's high demand for appearance effects.

[0010] In one possible implementation, the diaphragm further includes a second colored layer, disposed on a side of the first colored layer facing away from the substrate layer. This second colored layer can impart color, gloss, and texture to the diaphragm. For example, the second colored layer can include an external color and / or a color-changing region. The superimposed second colored layer can further enrich the diaphragm's appearance and enhance its design flexibility.

[0011] In one possible implementation, the second colored layer includes a third color-changing region that is configured to exhibit different colors under different environmental conditions. Specifically, as the environmental conditions surrounding the film change, the color of the third color-changing region of the second colored layer also changes, resulting in a partially or entirely variable color appearance of the second colored layer.

[0012] By providing the second colored layer with a third color-changing region, and superimposing the color of the third color-changing region with the colors of the first and second color-changing regions, the film's appearance can be further enriched, the film's design flexibility can be enhanced, and the user's high demands for appearance can be better met. This also helps to further enhance the film's unique appearance and interactive effects.

[0013] In one possible implementation, the film further includes a texture layer located between the first coloring layer and the substrate layer. The texture layer can achieve a texture effect, further enhancing the appearance of the film to meet users' high demands for appearance.

[0014] In a possible implementation, the diaphragm further includes a coating layer, which is located between the texture layer and the first coloring layer. The coating layer can enhance the texture of the diaphragm and further improve the appearance of the diaphragm.

[0015] In one possible implementation, the membrane further includes a concealing layer, which is located on the side of the second colored layer facing away from the substrate layer. The concealing layer can also protect the first colored layer, the substrate layer, and the like. The concealing layer can also conceal various structural components within the housing cavity within the base housing. For example, in an example where the membrane is disposed on the inner surface of the base housing, the base housing can be transparent. The concealing layer can conceal various structural components within the housing cavity, thereby enhancing the aesthetics of the electronic device.

[0016] In one possible implementation, the shapes of the first and second color-changing regions include one or more combinations of points, lines, and surfaces. For example, the shapes of the first and second color-changing regions can be different, which increases design flexibility and further facilitates achieving a multi-dimensional appearance for the film.

[0017] In one possible implementation, the shape of the third color-changing region includes one or more combinations of points, lines, and surfaces. For example, the shape of the third color-changing region can be different from the shape of at least one of the first and second color-changing regions, providing greater design flexibility and further facilitating the film's multi-dimensional appearance.

[0018] In one possible implementation, the first color-changing region is formed of a first color-changing material, and the second color-changing region is formed of a second color-changing material. The first and second color-changing materials include at least one of a thermochromic material and a photochromic material. The first and second color-changing regions include at least one of a thermochromic region and a photochromic region. The first and second color-changing regions can change color under different lighting conditions, and the first and second color-changing regions can also change color under different temperature conditions. This facilitates enriching the design of the appearance effects of the first and second color-changing regions, providing greater design flexibility and practicality.

[0019] In one possible implementation, the third color-changing region is formed of a third color-changing material, the third color-changing material includes at least one of a temperature-sensitive material and a photosensitive material, and the third color-changing region includes at least one of a temperature-sensitive color-changing region and a photosensitive color-changing region. This facilitates enriching the design of the third color-changing region's appearance, further enhancing the design flexibility and practicality of the diaphragm's appearance.

[0020] In one possible implementation, the photosensitive material includes a photoluminescent material and a photochromic material, so that the first, second, and third color-changing regions can change color under different lighting conditions, giving the film a dynamically variable appearance and high applicability.

[0021] A second aspect of an embodiment of the present application provides a housing, comprising a base shell and any one of the above-mentioned diaphragms, wherein the diaphragm is arranged on one surface of the base shell through a connecting layer.

[0022] A third aspect of the embodiments of the present application provides an electronic device, including a housing, at least a portion of which is the above-mentioned shell.

[0023] In a possible implementation, the housing encloses a receiving cavity, and the diaphragm of the housing is located on a surface of the base shell of the housing facing the receiving cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application;

[0025] Figure 2 A schematic diagram of the cross-sectional structure of a diaphragm provided in an embodiment of the present application;

[0026] Figure 3 for Figure 2 Schematic diagram of the assembly of the middle diaphragm and the base shell;

[0027] Figure 4 A schematic cross-sectional view of another diaphragm provided in an embodiment of the present application;

[0028] Figure 5 A schematic cross-sectional view of another diaphragm provided in an embodiment of the present application;

[0029] Figure 6 A schematic cross-sectional view of another diaphragm provided in an embodiment of the present application;

[0030] Figure 7 To include Figure 6 A schematic front view of the base shell of the middle diaphragm under one environmental condition;

[0031] Figure 8 To include Figure 6 Schematic diagram of the base shell of the middle diaphragm under another environmental condition.

[0032] Description of reference numerals:

[0033] 100-Electronic equipment;

[0034] 101-housing; 111-middle frame; 121-back cover; 131-decorative shell;

[0035] 102-shell; 112-base shell;

[0036] 122-diaphragm;

[0037] 10-base material layer; 11-first color-changing region; 20-connecting layer; 30-first coloring layer; 31-second color-changing region;

[0038] 40 - second coloring layer; 41 - third color changing area; 50 - texture layer; 60 - coating layer; 70 - covering layer;

[0039] 103-Camera. DETAILED DESCRIPTION

[0040] The terms used in the implementation section of this application are only used to explain the specific embodiments of this application and are not intended to limit this application.

[0041] An embodiment of the present application provides an electronic device, which may include but is not limited to a mobile phone, a tablet personal computer, a laptop computer, a camera, an ultra-mobile personal computer (UMPC), a handheld computer, a walkie-talkie, a netbook, a POS machine, a personal digital assistant (PDA), a wearable device, a virtual reality (VR) device (such as VR glasses, VR helmets, etc.), an augmented reality (AR) device (such as AR glasses, AR helmets, etc.), an in-vehicle device, and other electronic devices with a housing.

[0042] The electronic device may be a non-foldable electronic device. For example, taking a mobile phone as an example, the electronic device may be a bar phone, such as a bar phone with a horizontal screen, or a bar phone with a vertical screen, etc. The electronic device cannot be folded or unfolded.

[0043] Alternatively, the electronic device may also be a foldable electronic device. For example, taking a mobile phone as an example, the mobile phone may be a foldable folding mobile phone, such as a horizontal screen folding mobile phone, or a vertical screen folding mobile phone, etc. The electronic device can be folded or unfolded.

[0044] In the embodiments of the present application, the electronic device is a non-foldable device, such as a bar phone, for example.

[0045] Figure 1 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application.

[0046] See also Figure 1 As shown, the electronic device 100 may include a housing 101, which may serve as the main load-bearing structural component of the electronic device 100. For example, the housing 101 may have a receiving cavity (not shown in the figure) for assembling and accommodating various structural components of the electronic device 100.

[0047] The electronic device 100 may further include a display screen (not shown). The display screen may be disposed on one side of the housing 101 and may enclose the aforementioned receiving cavity. The display screen is used to display information and provide an interactive interface for the user. The side of the display screen facing away from the housing 101 may serve as the display surface of the electronic device 100.

[0048] The display screen may include, but is not limited to, an organic light-emitting diode (OLED) display screen, a micro organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode (AMOLED) display screen, a light-emitting diode (LED) display screen, a mini organic light-emitting diode (Mini LED) display screen, a micro organic light-emitting diode (Micro LED) display screen, a quantum dot light-emitting diode (QLED) display screen, and a liquid crystal display (LCD) display screen.

[0049] For example, the housing 101 may include a middle frame 111 and a back cover 121. The middle frame 111 may be disposed around one side of the back cover 121. The middle frame 111 may be an annular frame structure, and the back cover 121 may be a plate-shaped structure.

[0050] The display screen can be located on the side of the middle frame 111 facing away from the back cover 121, that is, the display screen and the back cover 121 can be fixed on opposite sides of the middle frame 111. Figure 1 As shown in the figure, with the thickness direction of the housing 101 as the z direction, for example, the display screen and the back cover 121 can be respectively located on opposite sides of the middle frame 111 along the thickness direction (z direction), and the display screen and the back cover 121 are respectively fixed to the middle frame 111, and the display screen, the middle frame 111 and the back cover 121 can form the above-mentioned closed accommodating cavity.

[0051] The back cover 121 can serve as the appearance cover of the back of the electronic device 100. In the embodiment of the present application, the display surface of the display screen in the electronic device 100 can serve as the front of the electronic device 100, and the side of the back cover 121 facing away from the display screen can serve as the back of the electronic device 100.

[0052] The back cover 121 and the middle frame 111 can be integrally formed, making the housing 101 a one-piece structural component. Alternatively, the back cover 121 and the middle frame 111 can be separate structural components. After being formed separately, the back cover 121 and the middle frame 111 can be fixedly assembled together to form the housing 101 by welding, clamping, gluing, etc.

[0053] Exemplarily, the back cover 121 can be a rectangular plate-like structure, and the outer contour shapes of the middle frame 111 and the display screen can match the back cover 121. For example, the middle frame 111 can be a frame structure with a rectangular outer contour, and the display screen can be a thin plate-like structure with a rectangular outer contour.

[0054] Of course, in some other examples, the outer contours of the back cover 121 , the middle frame 111 and the display screen may be square, circular, oval, rounded rectangle, etc.

[0055] In some examples, the middle frame 111 may include a middle plate and a frame (not shown). The frame may be annular and may be disposed around the middle plate. The middle plate may provide support for various structural components of the electronic device 100, and the structural components of the electronic device 100 may be assembled and fixed to the middle plate.

[0056] The middle plate and the frame can be separate structural members, which can be assembled together by welding, clamping, gluing, etc. after being formed separately. Alternatively, the middle plate and the frame can be an integrated structural member, that is, the middle plate and the frame are formed into a single integral structural member by an integrated molding method.

[0057] Alternatively, in some examples, the middle frame 111 may not include a middle plate, and the middle frame 111 may be a hollow ring structure. The back cover 121 may provide support for the various structural components of the electronic device 100 so that the structural components of the electronic device 100 can be fixedly assembled with the back cover 121.

[0058] The electronic device 100 may further include a camera 103 , which is used to implement functions such as photographing. The camera 103 may be at least partially located in the accommodating cavity of the housing 101 .

[0059] The number of the camera 103 may be one, or the number of the camera 103 may be multiple, so as to meet different shooting requirements.

[0060] For example, the camera 103 may be a front-facing camera, and the light inlet of the camera 103 may be located on the front of the electronic device 100. For example, a through hole communicating with the accommodating cavity may be opened on the display screen, and the camera 103 may be located in the accommodating cavity. The light inlet of the camera 103 may face the through hole on the display screen, so that light can pass through the through hole on the display screen and illuminate the camera 103.

[0061] Alternatively, in some examples, no through hole may be provided on the display screen, and the light inlet of the camera 103 may face the display screen, so that light may pass through the display screen and irradiate into the camera 103 .

[0062] The camera 103 can also be a rear camera, such as Figure 1 As shown in , the light inlet of the camera 103 can be located on the back of the electronic device 100. For example, an assembly hole (not shown) communicating with the accommodating cavity can be opened on the back cover 121, and the camera 103 can be located in the accommodating cavity. The light inlet of the camera 103 can face the assembly hole on the back cover 121, so that light can pass through the assembly hole on the back cover 121 to illuminate the camera 103.

[0063] Alternatively, in some examples, the camera 103 may be partially located within the accommodating cavity, and a portion of the camera 103 may extend out of the accommodating space through an assembly hole on the back cover 121 , allowing light to illuminate the camera 103 .

[0064] The housing 101 of the electronic device 100 may further include a decorative shell 131. The decorative shell 131 may be mounted on the back cover 121 and may be disposed around the mounting hole on the back cover 121. The decorative shell 131 may decorate and protect the mounting hole and the camera 103, thereby enhancing the aesthetics of the housing 101 and the electronic device 100.

[0065] For example, a portion of the decorative shell 131 can be fixedly mounted within the mounting hole, and at least a portion of the camera 103 can be located within the space enclosed by the decorative shell 131. Portions of the decorative shell 131 can extend beyond the mounting hole and protrude from the back surface of the rear cover 121, making the thickness of the electronic device 100 at the location of the camera 103 greater than at other locations. This increases the space available for accommodating the camera 103 while meeting overall thickness requirements, thereby improving the performance of the camera 103.

[0066] Of course, in some other examples, the decorative shell 131 may not protrude from the back cover 121. For example, the side of the decorative shell 131 facing away from the display screen (accommodation cavity) may be flush with the side of the back cover 121 facing away from the display screen.

[0067] The electronic device 100 may further include a main circuit board and a battery (not shown in the figure). The main circuit board and the battery may be located in the aforementioned accommodation space. For example, the main circuit board and the battery may be disposed on the middle frame 111. For example, the main circuit board and the battery may be disposed on the side of the middle plate of the middle frame 111 facing the back cover 121, or the main circuit board and the battery may be disposed on the side of the middle plate of the middle frame 111 facing the display screen.

[0068] The main circuit board may include a processor, a controller, a memory, etc. The processor may include one or more interfaces, which may be used to connect a charger to charge the electronic device 100. The interface may also be used to implement data transmission between the electronic device 100 and an external device, for example, it may also be used to connect headphones, a projection device, etc.

[0069] The electronic device 100 may further include a charging management module and a power management module (not shown in the figure), and the charging management module and the power management module may also be fixed in the above-mentioned accommodation space.

[0070] The charging management module is configured to receive charging input from a charger. The charger can be either a wireless charger or a wired charger. In some wired charging examples, the charging management module can receive charging input from the wired charger via an interface. In some wireless charging embodiments, the charging management module can receive wireless charging input via a wireless charging coil on the electronic device 100. The charging management module can charge the battery and also provide power to the electronic device 100 through the power management module.

[0071] The power management module connects the battery, charging management module, and processor. It receives input from the battery and / or charging management module and provides power to the processor, memory, display, camera 103, and other components. The power management module can also monitor parameters such as battery capacity, battery cycle count, and battery health (leakage, impedance), among others.

[0072] In some examples, the power management module can be provided in a processor of the main circuit board. In other examples, the power management module and the charging management module can also be provided in the same device.

[0073] It should be understood that the structures illustrated in the embodiments of the present application do not constitute a specific limitation on the electronic device 100. In other embodiments of the present application, the electronic device 100 may include more or fewer components than shown, or may combine or separate certain components, or arrange the components differently. For example, the electronic device 100 may also include sensors, communication modules, speakers, microphones, flashlights, and other devices.

[0074] To enhance the appearance of electronic devices, current shells are mostly designed with decorative films. For example, decorative films can be pasted on a base shell to form the shell of an electronic device. Decorative films can give the shell color, glossiness, texture and other appearance effects. Decorative films usually include a film substrate, an ink layer and an adhesive layer. The adhesive layer and the ink layer can be located on two opposite sides of the film substrate, and the molding material of the ink layer can include colored materials, so that the decorative film can have certain color, glossiness and other appearance effects. The appearance effect of this type of decorative film is relatively simple and is an immutable static effect, which makes the appearance effect of the shell highly homogenized and difficult to meet users' high demands for the appearance effect of electronic devices.

[0075] Based on this, an embodiment of the present application provides a diaphragm comprising a connecting layer, a substrate layer, and a first coloring layer. The connecting layer and the first coloring layer can be located on opposite sides of the substrate layer along the thickness direction, and the substrate layer and the first coloring layer are stacked. The substrate layer includes a first color-changing region, and the first coloring layer includes a second color-changing region. The first color-changing region and the second color-changing region are configured to present different appearance colors under different environmental conditions. That is, as the external environmental conditions in which the diaphragm is located change, the appearance colors of the first color-changing region of the substrate layer and the second color-changing region of the first coloring layer will change, and the substrate layer and the first coloring layer have an appearance effect in which the appearance color can be changed locally or overall. The appearance color of the diaphragm can be given a change, so that the appearance color of the diaphragm changes under different environmental conditions, giving the diaphragm a special appearance effect of color change, enriching the appearance effect of the diaphragm, and enhancing the flexibility of the diaphragm appearance effect design, which is conducive to meeting the high needs of users. Moreover, the appearance effect of the diaphragm is dynamically changeable, which can present a unique appearance and has a good interactive effect. In addition, a first color-changing region and a second color-changing region are formed in the laminated substrate layer and the first coloring layer. The first color-changing region and the second color-changing region have a certain spatial difference. For example, in the thickness direction, the first color-changing region and the second color-changing region are respectively located in two layers. The first color-changing region and the second color-changing region in different layers can produce a three-dimensional spatial perception, so that the film can achieve a spatial three-dimensional visual effect. The appearance color or shape pattern of the film can present a perception of shapes and patterns in a three-dimensional space (or called a three-dimensional space), achieving a multi-level and multi-dimensional appearance effect, meeting the user's high demand for appearance effects.

[0076] An embodiment of the present application also provides a shell, which may include a base shell and the diaphragm. The diaphragm can be arranged on one surface of the base shell. The diaphragm can be used to enable the shell to have a dynamically changeable appearance effect. The shell can present a multi-level and multi-dimensional appearance, so that the shell can have a spatial three-dimensional appearance effect, thereby realizing a unique design and interactive effect of the shell appearance.

[0077] Among them, at least a portion of the housing 101 of the above-mentioned electronic device 100 can be a shell having the diaphragm. For example, in some examples, a portion of the housing 101 can be a shell, that is, a portion of the housing 101 is formed by the shell. For example, the back cover 121 of the housing 101 can include the shell, and part or all of the back cover 121 can be formed by the shell. Alternatively, the decorative shell 131 of the housing 101 can include the shell, and part or all of the decorative shell 131 can be formed by the shell. Alternatively, in some examples, the middle frame 111 of the housing 101 can include the shell, and part or all of the middle frame 111 can be formed by the shell.

[0078] Alternatively, in some examples, the entire housing 101 may be the shell, that is, the entire housing 101 may be formed by the shell.

[0079] It should be noted that at least part of the housing 101 may be a shell including the diaphragm, that is, at least part of the housing 101 is composed of a base shell and a diaphragm. In some examples, the diaphragm may be located on the inner surface of the base shell (the side facing the accommodating cavity), and the base shell itself may be transparent to ensure that the color, glossiness, texture and other appearance effects of the diaphragm can be exposed through the base shell.

[0080] Alternatively, in some examples, the membrane may also be located on the outer surface of the base shell (the side facing away from the accommodation cavity). The base shell itself may be transparent, or the base shell itself may also be opaque.

[0081] In the embodiment of the present application, there is no limitation on the molding material of the base shell. For example, the molding material of the base shell can be one or more combinations of glass, plastic, metal, metal alloy, etc.

[0082] In some examples, the base shell itself can have an appearance color, or the base shell provided with a diaphragm can have a shape pattern, etc. The appearance color, shape pattern, etc. of the base shell can be superimposed with the appearance color, glossiness, texture and other appearance effects of the diaphragm, thereby increasing the appearance design flexibility of the shell 101 and enriching the appearance design effect of the shell 101.

[0083] Of course, in some examples, the base shell itself may not have appearance effects such as appearance color, shape pattern, etc. The outer shell 101 may achieve appearance effects such as appearance color, glossiness, texture, etc. through the membrane.

[0084] The following describes the diaphragm and the assembly method of the diaphragm and the base shell by taking the diaphragm disposed on the inner surface of the base shell as an example.

[0085] Figure 2 A schematic diagram of the cross-sectional structure of a diaphragm provided in an embodiment of the present application.

[0086] See also Figure 2 As shown, the film 122 includes a connecting layer 20, a base layer 10, and a first coloring layer 30. The base layer 10 can be used as the main carrier of the film 122, and the connecting layer 20, the first coloring layer 30, etc. are all arranged on the base layer 10. For example, the thickness direction of the base layer 10 is consistent with the thickness direction of the electronic device 100, such as Figure 2 Taking the z direction shown in the figure as an example, the connecting layer 20 and the first colored layer 30 can be located on opposite sides of the substrate layer 10 along the thickness direction, with the first colored layer 30 located on the side of the substrate layer 10 facing away from the connecting layer 20. Along the thickness direction (z direction), the substrate layer 10 and the first colored layer 30 are stacked.

[0087] For example, in some examples, the base material layer 10 may include a first surface and a second surface opposite to each other in the thickness direction (z direction), the connection layer 20 may be disposed on the first surface, and the first coloring layer 30 may be disposed on the second surface.

[0088] The substrate layer 10 and the first colored layer 30 can impart color, glossiness, and texture to the diaphragm 122. The connecting layer 20 can facilitate assembly of the diaphragm 122 with other structural components. For example, the substrate layer 10, the first colored layer 30, etc. can be fixedly connected to the base shell via the connecting layer 20, thereby securing the entire diaphragm 122 to the base shell. For example, the connecting layer 20 can be an adhesive layer, allowing the diaphragm 122 to be adhered to a structural component such as the base shell.

[0089] The diaphragm 122 may further include a covering layer 70. The covering layer 70 may be disposed on the side of the first colored layer 30 facing away from the substrate layer 10. The covering layer 70 may be located on the outermost side of the entire diaphragm 122 (the side facing away from the connecting layer 20). For example, in the case where the diaphragm 122 includes a connecting layer 20, a substrate layer 10, and a first colored layer 30 stacked in sequence, the covering layer 70 may cover and adhere to the side of the first colored layer 30 facing away from the substrate layer 10. The covering layer 70 may also provide protection for the first colored layer 30, the substrate layer 10, and the like.

[0090] In the example where the membrane 122 is disposed on the inner surface of the base shell, the base shell may be transparent, and the covering layer 70 may also serve to cover various structural components in the internal accommodating cavity of the base shell 112 , thereby improving the aesthetics of the electronic device.

[0091] For example, the material of the covering layer 70 may include, but is not limited to, an ink material, so that the covering layer 70 can be an ink layer, also known as a cover ink layer. The covering layer 70 itself can have an appearance color, pattern, shape, etc. For example, the covering layer 70 can have an appearance color effect such as white, black, or a color to achieve a covering effect on various structural components within the accommodating cavity.

[0092] It should be noted that, in some examples, the diaphragm 122 may not include the covering layer 70 . For example, in examples where the base shell itself has a color or the base shell itself has the covering layer 70 , the diaphragm 122 may not include the covering layer 70 .

[0093] Among them, the substrate layer 10 includes a first color-changing area 11, which is used to present different appearance colors under different environmental conditions. It should be noted that in the embodiment of the present application, the appearance color may include the appearance color, the brightness and vividness of the color, saturation and color (cold and warm feeling), etc.

[0094] That is, as the external environmental conditions surrounding the membrane 122 change, the color of the first color-changing region 11 of the substrate layer 10 changes, giving the substrate layer 10 a partially or entirely variable color appearance. It should be noted that this color change is reversible. A change in environmental conditions causes the color of the first color-changing region 11 of the substrate layer 10 to change, and when the environmental conditions return to normal, the color of the first color-changing region 11 of the substrate layer 10 returns to normal.

[0095] For example, if the environmental condition can be a lighting condition, the first color-changing region 11 can be a photochromic region, that is, the appearance color of the first color-changing region 11 changes with changes in the lighting condition. Under different lighting conditions, such as different light wavelengths and light intensities, the appearance color of the first color-changing region 11 can undergo reversible changes. For example, the first color-changing region 11 can be changed from non-luminescent to fluorescent, or the first color-changing region 11 can be changed from one color to another.

[0096] For example, the first color-changing region 11 can reversibly change its appearance color under different light intensity conditions. For example, when the film 122 is in an environment with strong light intensity, the first color-changing region 11 may not emit light. When the film 122 is in an environment with weak light intensity, the first color-changing region 11 may emit fluorescence.

[0097] When the diaphragm 122 is in an environment with low light intensity, the color of the first color-changing region 11 can be a first color, such as white. When the diaphragm 122 is in an environment with high light intensity, the color of the first color-changing region 11 can be a second color, such as blue.

[0098] It should be noted that in the embodiments of the present application, the two different colors refer to two colors with color difference. The first color, the second color, etc. are only examples, and the first color, the second color, etc. can be any color existing in nature.

[0099] Alternatively, in some examples, the environmental condition may also be a temperature condition, and the first color-changing region 11 may be a thermochromic region, i.e., the color of the first color-changing region 11 may change with changes in temperature. Under different temperature conditions, the color of the first color-changing region 11 may change reversibly. For example, the first color-changing region 11 may change from one color to another under different temperature conditions.

[0100] Alternatively, in some other examples, the environmental condition may be other factors that can cause a change in appearance color, so that the first color-changing region 11 can undergo a reversible change in appearance color under different conditions. For example, the first color-changing region 11 may be an electrochromic region, and the environmental condition may be a voltage condition. By applying different voltage conditions to the first color-changing region 11, the appearance color of the first color-changing region 11 can reversibly change with the different voltage conditions.

[0101] Alternatively, the environmental condition may also be a humidity condition, and the first color-changing region 11 may be a humidity-sensitive color-changing region, and the appearance color of the first color-changing region 11 changes reversibly with changes in the humidity condition.

[0102] In some examples, when one of the aforementioned environmental conditions, such as light, temperature, voltage, and humidity, changes, the first color-changing region 11 undergoes a reversible change in appearance. For example, when the lighting conditions of the environment in which the diaphragm 122 is located change, the appearance of the color of the first color-changing region 11 changes. When other environmental conditions, such as temperature, change in the environment in which the diaphragm 122 is located, the appearance of the color of the first color-changing region 11 does not change.

[0103] Alternatively, in some examples, when two or more of the aforementioned environmental conditions, such as light, temperature, voltage, and humidity, change, the first color-changing region 11 undergoes a reversible change in appearance color. For example, when the lighting conditions of the environment in which the diaphragm 122 is located change, the appearance color of the first color-changing region 11 changes. When the temperature conditions of the environment in which the diaphragm 122 is located change, the appearance color of the first color-changing region 11 may also change.

[0104] The first colored layer 30 includes a second color-changing region 31, which is designed to exhibit different colors under different environmental conditions. Specifically, as the environmental conditions surrounding the membrane 122 change, the color of the second color-changing region 31 of the first colored layer 30 also changes, creating a visual effect where the first colored layer 30 can partially or entirely change color. Similarly, this color change is reversible: A change in environmental conditions causes the color of the second color-changing region 31 of the first colored layer 30 to change. When the environmental conditions return to normal, the color of the second color-changing region 31 of the first colored layer 30 returns to normal.

[0105] The second color-changing region 31 can be a photochromic region, and the environmental conditions can be light conditions such as light wavelength and light intensity. That is, the appearance color of the second color-changing region 31 changes reversibly with changes in the lighting conditions. For example, changes in the lighting conditions surrounding the diaphragm 122 can cause the second color-changing region 31 to change from non-luminescent to fluorescent, or change from one color to another.

[0106] The environmental condition may also be a temperature condition, and the second color-changing region 31 may be a thermochromic region. That is, the color of the second color-changing region 31 may change with changes in temperature. Under different temperature conditions, the color of the second color-changing region 31 may change reversibly.

[0107] The environmental conditions can also be other factors that cause the second color-changing region 31 to reversibly change in appearance color under different conditions. For example, the second color-changing region 31 can be an electrochromic region, whose appearance color can reversibly change with changes in voltage conditions. Alternatively, the second color-changing region 31 can be a humidity-sensitive color-changing region, whose appearance color can reversibly change with changes in humidity conditions.

[0108] In some examples, when one of the aforementioned environmental conditions, such as light, temperature, voltage, and humidity, changes, the second color-changing region 31 undergoes a reversible color change. Alternatively, in some examples, when two or more of the aforementioned environmental conditions, such as light, temperature, voltage, and humidity, change, the second color-changing region 31 undergoes a reversible color change.

[0109] The first color-changing region 11 of the substrate layer 10 and the second color-changing region 31 of the first colored layer 30 can impart a color change to the diaphragm 122, allowing the diaphragm 122 to change color as environmental conditions change. This gives the diaphragm 122 a unique color-changing appearance, enriching the appearance of the diaphragm 122 and increasing the flexibility of the design of the diaphragm 122's appearance, thereby meeting the high demands of users. Furthermore, the appearance of the diaphragm 122 is dynamically changeable, presenting a unique appearance and providing excellent interactive effects.

[0110] The first color-changing region 11 and the second color-changing region 31 are formed in the laminated substrate layer 10 and the first coloring layer 30, respectively. The first color-changing region 11 and the second color-changing region 31 have a certain spatial difference. For example, in the thickness direction (z direction), the first color-changing region 11 and the second color-changing region 31 are respectively located in two layers. In this way, a three-dimensional spatial perception can be generated by the first color-changing region 11 and the second color-changing region 31 in different layers, so that the diaphragm 122 can achieve a spatial three-dimensional visual effect. For example, by designing the appearance color, shape and layout position of the first color-changing region 11 and the second color-changing region 31, a three-dimensional appearance effect can be achieved, so that the appearance color or shape pattern of the diaphragm 122 can present a perception of a shape pattern in a three-dimensional space (or called a three-dimensional space), achieving a multi-level and multi-dimensional appearance effect, further enriching the appearance design of the diaphragm 122, and meeting the user's high demand for appearance effects.

[0111] It should be noted that the environmental conditions that cause the appearance color of the first color-changing area 11 to change may be the same as the environmental conditions that cause the appearance color of the second color-changing area 31 to change. Of course, in some examples, the two may also be different.

[0112] Taking the example of the same environmental conditions in which the first color-changing region 11 and the second color-changing region 31 change their appearance colors, when the environmental conditions in which the diaphragm 122 is located change, the appearance colors of both the first color-changing region 11 and the second color-changing region 31 change, for example, when the diaphragm 122 changes from being in an environment with high light intensity to being in an environment with low light intensity. For example, before the change (e.g., in an environment with high light intensity), the appearance colors of the first color-changing region 11 and the second color-changing region 31 may be the same, and after the change (e.g., in an environment with low light intensity), the appearance colors of the first color-changing region 11 and the second color-changing region 31 may be different.

[0113] Alternatively, before the change (such as in an environment with strong light intensity), the appearance color of the first color-changing area 11 and the appearance color of the second color-changing area 31 can be different, and after the change (such as in an environment with weak light intensity), the appearance color of the first color-changing area 11 and the appearance color of the second color-changing area 31 can be the same.

[0114] In the embodiment of the present application, the appearance color of the first color-changing region 11 before and after the change is not limited. Before the change, the first color-changing region 11 may be luminous or non-luminous, may have a color or may be colorless, may be transparent or may be opaque, etc. Correspondingly, after the change, the first color-changing region 11 may be luminous or non-luminous, may have a color or may be colorless, may be transparent or may be opaque, etc.

[0115] In some examples, the first color-changing region 11 may cover the entire substrate layer 10 , that is, the entire substrate layer 10 may be the first color-changing region 11 , and the substrate layer 10 is a film layer whose overall appearance is color-changeable.

[0116] Alternatively, in some examples, only a portion of the substrate layer 10 may serve as the first color-changing region 11, making the substrate layer 10 a film layer with a partially changeable appearance. The remaining area of ​​the substrate layer 10 may be transparent. Alternatively, the remaining area of ​​the substrate layer 10 may be opaque. The remaining area of ​​the substrate layer 10 may not have any color, pattern, or other appearance effects, or the remaining area of ​​the substrate layer 10 may have any color, pattern, or other appearance effects.

[0117] The molding material of the substrate layer 10 may include a first molding substrate and a first color-changing material. It should be noted that in the example where only a partial area of ​​the substrate layer 10 is the first color-changing area 11, only the molding material of the first color-changing area 11 may include the first molding substrate and the first color-changing material, and the molding material of the remaining areas of the substrate layer 10 may be the first molding substrate and may not include the first color-changing material.

[0118] For example, the first molding substrate may include, but is not limited to, thermoplastic polyurethanes (TPU), cellulose acetate material, and the like.

[0119] The first color-changing material may include a photosensitive material, which is a material that is sensitive to lighting conditions. Under different lighting conditions, the photosensitive material can undergo a reversible change in appearance color, thereby causing the first color-changing area 11 to undergo a change in appearance color.

[0120] Exemplarily, the photosensitive material may include a photoluminescent material, such as a fluorescent material. The fluorescent material may be an inorganic fluorescent material, such as a rare earth ion luminescent material or a rare earth fluorescent material. The fluorescent material may also be an organic fluorescent material, such as an organic material with a conjugated heterocycle, various chromophores, or an organic material with an unsaturated group such as an olefinic bond or a benzene ring.

[0121] The photosensitive material may also include a photochromic material, which may be an organic photochromic material such as spiropyran derivatives, azobenzene derivatives, etc. It may also be an inorganic photochromic material such as transition metal oxides, metal halides, rare earth complexes, etc.

[0122] In some examples, the first color-changing material may also include a temperature-sensitive material, such as a temperature-changing material, a temperature-sensitive color-changing powder, etc. The first color-changing material may also include an electrochromic material, a humidity-sensitive color-changing material, etc.

[0123] The molding method of the substrate layer 10 is illustrated by taking the first color-changing material as a photosensitive material. In the example where the first color-changing material includes other color-changing materials such as a thermosensitive material, the molding method of the substrate layer 10 can refer to the molding method of the first color-changing material as a photosensitive material.

[0124] For example, in the process of forming the substrate layer 10 using the first molding substrate, a first color-changing material can be added to a local area or the entire area of ​​the first molding substrate, so that after the substrate layer 10 is formed, the local area or the entire area of ​​the substrate layer 10 becomes the first color-changing area 11.

[0125] For example, the substrate layer 10 can be formed using an extrusion process. The first color-changing material can be partially or entirely incorporated into the first molded substrate. The first substrate and the first color-changing material are co-extruded (or this can be called multi-color co-extrusion) to form the substrate layer 10. A local area or the entire area of ​​the substrate layer 10 includes the first color-changing material, making this part of the substrate layer 10 the first color-changing area 11. The local area or the entire area of ​​the substrate layer 10 has a special variable appearance effect.

[0126] It should be noted that the substrate layer 10 may include one or more first color-changing regions 11 , and each first color-changing region 11 may present the same or different appearance colors under different environmental conditions.

[0127] The environmental conditions that cause the appearance color changes of the multiple first color-changing regions 11 can be the same. For example, the types of the first color-changing materials in the molding materials of the multiple first color-changing regions 11 can be the same, such as photosensitive materials.

[0128] Alternatively, in some examples, the environmental conditions that cause the appearance color changes of the multiple first color-changing regions 11 may be different. For example, the first color-changing materials in the molding materials of the multiple first color-changing regions 11 may be different. For example, the first color-changing materials of some first color-changing regions 11 may be photosensitive materials, while the first color-changing materials of some first color-changing regions 11 may be temperature-sensitive materials.

[0129] The shape of the first color-changing region 11 of the substrate layer 10 can include one or more combinations of points, lines, and surfaces. For example, the first color-changing region 11 can be one or more point-shaped regions, the first color-changing region 11 can be one or more line-shaped regions, and the first color-changing region 11 can also be one or more surface-shaped regions, such as covering an entire surface of the substrate layer 10.

[0130] Alternatively, in an example where the substrate layer 10 has a plurality of first color-changing regions 11, the shapes of the plurality of first color-changing regions 11 may include at least two of points, lines, and surfaces. This allows the substrate layer 10 and the film 122 to achieve a multi-dimensional appearance, thereby enhancing the appearance of the film 122.

[0131] In the embodiment of the present application, the appearance color of the second color-changing region 31 before and after the change is not limited. Before the change, the second color-changing region 31 may be luminous or non-luminous, may have a color or may be colorless, may be transparent or may be opaque, etc. Correspondingly, after the change, the second color-changing region 31 may be luminous or non-luminous, may have a color or may be colorless, may be transparent or may be opaque, etc.

[0132] In some examples, the second color-changing region 31 may cover the entire first coloring layer 30 , that is, the entire first coloring layer 30 may be the second color-changing region 31 , and the first coloring layer 30 is a film layer whose overall appearance color can be changed.

[0133] Alternatively, in some examples, only a portion of the first colored layer 30 may serve as the second color-changing region 31, and the first colored layer 30 may be a film layer whose appearance is partially color-changing. The remaining portion of the first colored layer 30 may be transparent. Alternatively, the remaining portion of the first colored layer 30 may be opaque. The remaining portion of the first colored layer 30 may not have any color, pattern, or other appearance effects, or the remaining portion of the first colored layer 30 may have any color, pattern, or other appearance effects.

[0134] The molding material of the first coloring layer 30 may include a second molding substrate and a second color-changing material. In the example where only a portion of the first coloring layer 30 is the second color-changing region 31, only the molding material of the second color-changing region 31 may include the second molding substrate and the second color-changing material, and the molding material of the remaining areas of the first coloring layer 30 may be the second molding substrate and may not include the second color-changing material.

[0135] For example, the second forming substrate may include, but is not limited to, an ink material, so that the second colored layer 40 is an ink layer with a variable appearance color, such as a photosensitive ink layer. The ink material may include a binder, such as a resin. The ink material may also include pigments, fillers, additives, and solvents.

[0136] The second color-changing material may include a photosensitive material, a temperature-sensitive material, an electrochromic material, a humidity-sensitive material, etc. Specific examples may refer to the first color-changing material above, and will not be described in detail here.

[0137] For example, the first coloring layer 30 can be formed on the side of the substrate layer 10 facing away from the connecting layer 20 by silk screen printing, spraying, etc., such as forming the first coloring layer 30 on the side of the substrate layer 10 facing away from the connecting layer 20, and making the first coloring layer 30 have a second color change area 31.

[0138] For example, the first colored layer 30 having the second color-changing region 31 can be transferred to the side of the substrate layer 10 facing away from the connecting layer 20 by silk-screen printing, transfer printing, or the like.

[0139] It should be noted that the first coloring layer 30 may include one or more second color-changing regions 31 , and each second color-changing region 31 may present the same or different appearance colors under different environmental conditions.

[0140] The environmental conditions that cause the appearance color change of the multiple second color-changing regions 31 can be the same. For example, the types of the second color-changing materials in the molding materials of the multiple second color-changing regions 31 can be the same, such as all being photosensitive materials.

[0141] Alternatively, the environmental conditions that cause the appearance color changes of the multiple second color-changing regions 31 may also be different. For example, the second color-changing materials in the molding materials of the multiple second color-changing regions 31 may be different. For example, the second color-changing materials of some second color-changing regions 31 may be photosensitive materials, while the second color-changing materials of some second color-changing regions 31 may be temperature-sensitive materials.

[0142] The shape of the second color-changing region 31 of the first coloring layer 30 may include one or more combinations of points, lines, and surfaces. For example, the second color-changing region 31 may be one or more point-shaped regions, the second color-changing region 31 may be one or more line-shaped regions, or the second color-changing region 31 may be one or more surface-shaped regions, such as covering an entire surface of the first coloring layer 30.

[0143] Alternatively, in an example where the first colored layer 30 has multiple second color-changing regions 31 , the shapes of the multiple second color-changing regions 31 may include at least two of points, lines, and surfaces, thereby further facilitating the diaphragm 122 to achieve a multi-dimensional appearance and enhancing the appearance of the diaphragm 122 .

[0144] The shapes of the first color-changing region 11 and the second color-changing region 31 can be the same or different. Alternatively, in some examples, the shapes of some of the first color-changing region 11 and the second color-changing region 31 can be the same, while the shapes of some of the first color-changing region 11 and the second color-changing region 31 can be different. This allows for greater design flexibility, further facilitating the diaphragm 122 to achieve a multi-dimensional appearance.

[0145] Figure 3 for Figure 2 Schematic diagram of the assembly of the middle diaphragm and the base shell.

[0146] For example, Figure 3As shown in , taking the case where the housing 102 includes a base shell 112 and a diaphragm 122, and the diaphragm 122 is arranged on the inner surface of the base shell 112 as an example, the connecting layer 20 of the diaphragm 122 can be directly adhered to the inner surface of the base shell 112, such as the connecting layer 20 can be adhered to the inner surface of the base shell 112, so that the entire diaphragm 122 and the base shell 112 can be fixedly assembled to form at least part of the housing of the electronic device.

[0147] It can be understood that in the example where the diaphragm 122 is set on the inner surface of the base shell 112, the connecting layer 20 can be transparent to avoid the connecting layer 20 covering the appearance of the first color-changing region 11 and the second color-changing region 31 in the substrate layer 10 and the first coloring layer 30.

[0148] Exemplarily, the connecting layer 20 may be an optical clear adhesive (OCA) having excellent light transmittance and bonding strength, ensuring a high bonding strength between the diaphragm 122 and the base shell 112 without affecting the appearance of the diaphragm 122 .

[0149] Of course, in some other examples, the connection layer 20 may also be non-transparent, such as when the membrane 122 is disposed on the outer surface of the base shell 112, the connection layer 20 may be transparent or non-transparent. The connection layer 20 itself may be colorless, or it may have a certain color.

[0150] Figure 4 A schematic diagram of the cross-sectional structure of another diaphragm provided in an embodiment of the present application.

[0151] To further enhance the appearance of the film 122, the film 122 may further include a second colored layer 40. The second colored layer 40 may be disposed on the side of the first colored layer 30 facing away from the substrate layer 10. The second colored layer 40 may impart color, glossiness, and texture to the film 122. For example, the second colored layer 40 may include an external color and / or a color-changing region. The superimposed second colored layer 40 further enhances the appearance of the film 122 and enhances the design flexibility of the film 122.

[0152] In some examples, the second coloring layer 40 may include a third color-changing region 41. The third color-changing region 41 is configured to exhibit different colors under different environmental conditions. Specifically, as the external environmental conditions surrounding the membrane 122 change, the color of the third color-changing region 41 of the second coloring layer 40 also changes, giving the second coloring layer 40 a partially or entirely variable color. This color change is also reversible: a change in environmental conditions causes the color of the third color-changing region 41 of the second coloring layer 40 to change. When the environmental conditions return to normal, the color of the third color-changing region 41 of the second coloring layer 40 returns to normal.

[0153] The second colored layer 40 includes a third color-changing region 41. The color of the third color-changing region 41 is superimposed on the color of the first color-changing region 11 and the second color-changing region 31. This further enriches the appearance of the membrane 122, enhances the design flexibility of the membrane 122, and better meets the user's high demand for appearance. This also helps to further enhance the uniqueness and interactive effect of the membrane 122.

[0154] Furthermore, the second colored layer 40 is located on the side of the first colored layer 30 facing away from the connecting layer 20. Along the thickness direction (z-direction), the substrate layer 10, the first colored layer 30, and the second colored layer 40 are stacked. This creates a spatial difference between the first color-changing region 11, the second color-changing region 31, and the third color-changing region 41. For example, along the thickness direction (z-direction), the first color-changing region 11, the second color-changing region 31, and the third color-changing region 41 are located in three layers. This further enhances the spatial three-dimensionality of the film 122, allowing the film 122 to better present a three-dimensional appearance, such as shapes and patterns, and further facilitates achieving a multi-layered, multi-dimensional appearance.

[0155] The third color-changing region 41 can be a photochromic region, and the environmental conditions can be light conditions such as light wavelength and light intensity. That is, the appearance color of the third color-changing region 41 changes reversibly with changes in the lighting conditions. For example, changes in the lighting conditions surrounding the diaphragm 122 can cause the third color-changing region 41 to change from non-luminescent to fluorescent, or change from one color to another.

[0156] The environmental condition may also be a temperature condition, and the third color-changing region 41 may be a temperature-sensitive color-changing region. That is, the color of the third color-changing region 41 may change with changes in temperature. Under different temperature conditions, the color of the third color-changing region 41 may change reversibly.

[0157] Of course, in some other examples, the environmental conditions can also be other types of factors, causing the third color-changing region 41 to reversibly change its appearance color under different conditions. For example, the third color-changing region 41 can also be an electrochromic region, whose appearance color can reversibly change with changes in voltage conditions. Alternatively, the third color-changing region 41 can also be a humidity-sensitive color-changing region, whose appearance color can reversibly change with changes in humidity conditions.

[0158] In some examples, when one of the aforementioned environmental conditions, such as light, temperature, voltage, and humidity, changes, the third color-changing region 41 undergoes a reversible color change. Alternatively, in some examples, when two or more of the aforementioned environmental conditions, such as light, temperature, voltage, and humidity, change, the third color-changing region 41 undergoes a reversible color change.

[0159] The environmental conditions that cause the appearance color of the third color-changing region 41 to change may be the same as the environmental conditions that cause the appearance color of the first color-changing region 11 and / or the second color-changing region 31 to change. Of course, in some examples, the three may also be different.

[0160] Before the change occurs (such as in an environment with strong light intensity), the appearance color of the third color-changing area 41 can be the same as the appearance color of the first color-changing area 11 and / or the second color-changing area 31. After the change occurs (such as in an environment with weak light intensity), the appearance color of the third color-changing area 41 can be different from the appearance color of the first color-changing area 11 and / or the second color-changing area 31.

[0161] Alternatively, before the change (such as in an environment with strong light intensity), the appearance color of the third color-changing region 41 may be different from the appearance color of the first color-changing region 11 and / or the second color-changing region 31, and after the change (such as in an environment with weak light intensity), the appearance color of the third color-changing region 41 may be the same as the appearance color of the first color-changing region 11 and / or the second color-changing region 31.

[0162] In the embodiment of the present application, the appearance color of the third color-changing region 41 before and after the change is not limited. Before the change, the third color-changing region 41 may be luminous or non-luminous, may have a color or may be colorless, may be transparent or may be opaque, etc. Correspondingly, after the change, the third color-changing region 41 may be luminous or non-luminous, may have a color or may be colorless, may be transparent or may be opaque, etc.

[0163] In some examples, the third color-changing region 41 may cover the entire second coloring layer 40 , that is, the entire second coloring layer 40 may be the third color-changing region 41 , and the second coloring layer 40 is a film layer whose overall appearance color can be changed.

[0164] Alternatively, in some examples, only a portion of the second colored layer 40 may be the third color-changing region 41, and the second colored layer 40 may be a film layer whose appearance is partially color-changing. The remaining area of ​​the second colored layer 40 may be transparent. Alternatively, the remaining area of ​​the second colored layer 40 may be opaque. The remaining area of ​​the second colored layer 40 may not have any color, pattern, or other appearance effects, or the remaining area of ​​the second colored layer 40 may have any color, pattern, or other appearance effects.

[0165] The molding material of the second coloring layer 40 may include a third molding substrate and a third color-changing material. In the example where only a partial area of ​​the second coloring layer 40 is the third color-changing area 41, only the molding material of the third color-changing area 41 may include the third molding substrate and the third color-changing material, and the molding material of the remaining areas of the second coloring layer 40 may be the third molding substrate and may not include the third color-changing material.

[0166] For example, the third forming substrate may include, but is not limited to, an ink material, such that the second colored layer 40 is a color-variable ink layer, such as a photosensitive ink layer. The ink material may include a binder, such as a resin. The ink material may also include pigments, fillers, additives, and solvents. The third forming substrate may be the same as or different from the second forming substrate.

[0167] The third color-changing material may include a photosensitive material, a temperature-sensitive material, an electrochromic material, a humidity-sensitive material, etc. Specific examples may refer to the first color-changing material above, and will not be described in detail here.

[0168] For example, the second coloring layer 40 can be formed on the side of the first coloring layer 30 facing away from the connecting layer 20 by silk screen printing, spraying, etc. For example, the second coloring layer 40 is formed on the side of the first coloring layer 30 facing away from the connecting layer 20, and the second coloring layer 40 has a third color change area 41.

[0169] For example, the second coloring layer 40 having the third color-changing region 41 may be transferred to the side of the first coloring layer 30 facing away from the connecting layer 20 by silk-screen printing, transfer printing, or the like.

[0170] It should be noted that the second coloring layer 40 may include one or more third color-changing regions 41 , and each third color-changing region 41 may present the same or different appearance colors under different environmental conditions.

[0171] The environmental conditions that cause the appearance color change of the multiple third color-changing regions 41 can be the same. For example, the types of the third color-changing materials in the molding materials of the multiple third color-changing regions 41 can be the same, such as all being photosensitive materials.

[0172] Alternatively, the environmental conditions that cause the appearance color changes of the multiple third color-changing regions 41 may also be different. For example, the third color-changing materials used in the molding materials of the multiple third color-changing regions 41 may be different. For example, the third color-changing materials of some third color-changing regions 41 may be photosensitive materials, while the third color-changing materials of some third color-changing regions 41 may be temperature-sensitive materials.

[0173] The shape of the third color-changing region 41 of the second coloring layer 40 can include one or more combinations of points, lines, and surfaces. For example, the third color-changing region 41 can be one or more point-like regions, the third color-changing region 41 can be one or more line-like regions, and the third color-changing region 41 can also be one or more surface-like regions, such as covering an entire surface of the second coloring layer 40.

[0174] Alternatively, in the example where the second colored layer 40 has multiple third color-changing regions 41, the shapes of the multiple third color-changing regions 41 may include at least two of points, lines, and surfaces, thereby further facilitating the diaphragm 122 to achieve a multi-dimensional appearance and enhancing the appearance of the diaphragm 122.

[0175] The shape of the third color-changing region 41 can be the same as the shape of the first color-changing region 11 and the second color-changing region 31, or, in some examples, the shape of the third color-changing region 41 can be different from the shape of at least one of the first color-changing region 11 and the second color-changing region 31, which has better design flexibility and further helps the diaphragm 122 achieve a multi-dimensional appearance effect.

[0176] In the example where the diaphragm 122 includes the second coloring layer 40, the diaphragm 122 may include a covering layer 70. The covering layer 70 may be arranged on the side of the second coloring layer 40 facing away from the substrate layer 10, so that the substrate layer 10, the first coloring layer 30 and the second coloring layer 40 are located between the covering layer 70 and the connecting layer 20, thereby playing a protective and covering role and ensuring the appearance effect.

[0177] Figure 5 This is a schematic diagram of the cross-sectional structure of another diaphragm provided in an embodiment of the present application.

[0178] In the above example, the first colored layer 30 is shown as being laminated and covered on the surface of the substrate layer 10 facing away from the connecting layer 20. For example, the first colored layer 30 may be laminated and covered on the second surface of the substrate layer 10. In some examples, other functional film layers may be disposed between the first colored layer 30 and the substrate layer 10 to give the film 122 a richer appearance.

[0179] For example, see Figure 5 As shown, the diaphragm 122 may further include a texture layer 50, which may be disposed between the first coloring layer 30 and the substrate layer 10. For example, the texture layer 50 may cover and be bonded to the side of the substrate layer 10 facing away from the connecting layer 20, and the first coloring layer 30 may cover and be bonded to the side of the texture layer 50 facing away from the substrate layer 10.

[0180] The texture layer 50 can achieve a texture effect, further improving the appearance of the diaphragm 122 to meet the user's high demand for appearance. In the embodiment of the present application, the texture shape of the texture layer 50 is not limited and can be selected and set according to the appearance design requirements.

[0181] Exemplary materials for the texture layer 50 include, but are not limited to, ultraviolet (UV) curable materials, such as UV glue, and the texture layer 50 is formed by embossing. For example, the UV glue is pressed through a mold to form a texture pattern, and then cured by UV irradiation to form the texture layer 50, which is also called a UV texture layer.

[0182] In the example where the diaphragm 122 includes the texture layer 50, the diaphragm 122 may include the second colored layer 40, the connection layer 20, the base layer 10, the texture layer 50, the first colored layer 30, the second colored layer 40, and the cover layer 70. Alternatively, the diaphragm 122 may not include the second colored layer 40, and the connection layer 20, the base layer 10, the texture layer 50, the first colored layer 30, and the cover layer 70 may be stacked.

[0183] The diaphragm 122 may include the covering layer 70 , or the diaphragm 122 may not include the covering layer 70 .

[0184] Figure 6 A schematic diagram of the cross-sectional structure of another diaphragm provided in an embodiment of the present application.

[0185] In some examples, other functional film layers may be provided between the texture layer 50 and the first coloring layer 30 . For example, the functional film layers may be used to enhance the glossiness, texture, and other appearance effects of the film 122 .

[0186] For example, see Figure 6 As shown, the diaphragm 122 may further include a coating layer 60, which may be disposed between the texture layer 50 and the first coloring layer 30. For example, the coating layer 60 may cover and adhere to the side of the texture layer 50 facing away from the substrate layer 10, and the first coloring layer 30 may cover and adhere to the side of the coating layer 60 facing away from the texture layer 50.

[0187] The coating layer 60 can enhance the texture of the diaphragm 122 and further improve the appearance of the diaphragm 122. For example, the coating layer 60 can be an optical coating layer, which can reduce or increase light reflection, beam splitting, color separation, light filtering, polarization, and other effects, thereby improving the glossiness, texture, and other appearance effects.

[0188] For example, the coating layer 60 can be formed of one or more materials selected from the group consisting of SiO2, TiO2, Nb2O5, Si3N4, ZrO2, Al2O3, and In. The coating layer 60 can have a single-layer coating structure, or a multi-layer coating stacked structure. For example, the coating layer 60 can be formed by spraying, silk-screening, or the like.

[0189] In the example where the diaphragm 122 includes the coating layer 60, the diaphragm 122 may include the second coloring layer 40, and the connection layer 20, the base layer 10, the texture layer 50, the coating layer 60, the first coloring layer 30, the second coloring layer 40, and the cover layer 70 may be stacked in sequence. Alternatively, the diaphragm 122 may not include the second coloring layer 40, and the connection layer 20, the base layer 10, the texture layer 50, the coating layer 60, the first coloring layer 30, and the cover layer 70 may be stacked in sequence.

[0190] The membrane 122 may include the cover layer 70 , or the membrane 122 may not include the cover layer 70 .

[0191] The diaphragm 122 may have a texture layer 50, or the diaphragm 122 may not have a texture layer 50. For example, the connecting layer 20, the base material layer 10, the coating layer 60, the first coloring layer 30, the second coloring layer 40 and the covering layer 70 may be stacked in sequence.

[0192] like Figure 6 As shown in FIG, a film 122 is taken as an example, comprising a connecting layer 20, a substrate layer 10, a texture layer 50, a coating layer 60, a first coloring layer 30, a second coloring layer 40, and a cover layer 70 stacked in sequence. When forming the film 122, a first color-changing material can be first incorporated into a portion or the entire first formed substrate, and the substrate layer 10 having a first color-changing region 11 can be formed by multi-color co-extrusion or other methods. The connecting layer 20 is then laminated onto the first surface of the substrate layer 10. The texture layer 50 is formed on the second surface of the substrate layer 10 by embossing or other methods. The coating layer 60 is formed on the surface of the texture layer 50 facing away from the substrate layer 10 by silk screen printing or other methods. The first coloring layer 30 having a second color-changing region 31 is then formed on the surface of the coating layer 60 facing away from the texture layer 50 by silk screen printing or other methods. Furthermore, the second coloring layer 40 having a third color-changing region 41 is formed on the surface of the first coloring layer 30 facing away from the coating layer 60 by silk screen printing or other methods. Finally, a covering layer 70 is formed on the side of the second coloring layer 40 facing away from the first coloring layer 30 , thereby obtaining a film 122 with a multi-layered, multi-dimensional, and color-variable appearance effect.

[0193] Figure 7 To include Figure 6 Schematic diagram of the base shell of the middle diaphragm under one environmental condition. Figure 8 To include Figure 6Schematic diagram of the base shell of the middle diaphragm under another environmental condition.

[0194] For example, the back cover 121 of the electronic device 100 is the housing 102, including the base shell 112 and the above-mentioned membrane 122. The membrane 122 may include a connection layer 20, a base material layer 10, a texture layer 50, a coating layer 60, a first coloring layer 30, a second coloring layer 40 and a cover layer 70 stacked in sequence (see Figure 6 As shown), the connecting layer 20 can be arranged on the inner surface of the base shell 112.

[0195] For example, the first color-changing region 11 of the substrate layer 10, the second color-changing region 31 of the first coloring layer 30, and the third color-changing region 41 of the third coloring layer are all photosensitive color-changing regions. For example, the first color-changing material of the first color-changing region 11, the second color-changing material of the second color-changing region 31, and the third color-changing material of the third color-changing region 41 can all be fluorescent materials. Figure 7 As shown in , for example, the shape of the first color-changing region 11 can be a linear region, the shape of the second color-changing region 31 can be a dot-shaped region, and the shape of the third color-changing region 41 can be a surface region, such as the entire second coloring layer 40 forms the third color-changing region 41.

[0196] like Figure 7 As shown in , when the back cover 121 is in an environment with strong light intensity, the first color-changing area 11, the second color-changing area 31, and the third color-changing area 41 may not emit light. The appearance color of the back cover 121 can be an appearance effect of the superposition of the appearance colors of the base material layer, texture layer, coating layer, first coloring layer, second coloring layer, covering layer, etc. It can be understood that although the first color-changing area 11, the second color-changing area 31, and the third color-changing area 41 do not emit light, they can be vaguely observed with low brightness. The appearance color of these areas is mainly the appearance color of the first molding material, the second molding material, and the third molding material after molding.

[0197] like Figure 8 As shown, when the back cover 121 is exposed to low light intensity, the first color-changing region 11, the second color-changing region 31, and the third color-changing region 41 can emit fluorescence. The appearance of the back cover 121 is a combination of the inherent color of the laminate and the luminescence of the first color-changing region 11, the second color-changing region 31, and the third color-changing region 41, achieving a multi-layered and multi-dimensional photosensitive effect. The dynamically changeable color of the back cover 121 gives the electronic device 100 a unique appearance and excellent interactive effects.

[0198] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances. The terms "first", "second", "third", "fourth", etc. (if any) are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0199] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, rather than to limit them. Although the embodiments of the present application have been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A diaphragm (122), characterized in that: include: A substrate layer (10), the substrate layer (10) comprising a first color-changing region (11); A connecting layer (20); the connecting layer (20) is provided on one surface of the substrate layer (10); a first colored layer (30), the first colored layer (30) being arranged on a side of the substrate layer (10) facing away from the connecting layer (20), the first colored layer (30) comprising a second color-changing region (31); The first color-changing region (11) and the second color-changing region (31) are used to present different appearance colors under different environmental conditions.

2. The diaphragm (122) according to claim 1, characterized in that The invention also includes a second colored layer (40), wherein the second colored layer (40) is arranged on a side of the first colored layer (30) facing away from the substrate layer (10).

3. The diaphragm (122) according to claim 2, characterized in that The second colored layer (40) includes a third color-changing region (41), and the third color-changing region (41) is used to present different appearance colors under different environmental conditions.

4. The diaphragm (122) according to any one of claims 1 to 3, characterized in that: It also includes a texture layer (50), wherein the texture layer (50) is located between the first colored layer (30) and the substrate layer (10).

5. The diaphragm (122) according to claim 4, characterized in that It also includes a coating layer (60), and the coating layer (60) is located between the texture layer (50) and the first coloring layer (30).

6. The diaphragm (122) according to claim 3, characterized in that It also includes a covering layer (70), and the covering layer (70) is located on the side of the second colored layer (40) facing away from the substrate layer (10).

7. The diaphragm (122) according to any one of claims 1 to 3, characterized in that: The shapes of the first color-changing region (11) and the second color-changing region (31) include one or more combinations of points, lines, and surfaces.

8. The diaphragm (122) according to claim 3, characterized in that The shape of the third color-changing area (41) includes one or more combinations of points, lines, and surfaces.

9. The diaphragm (122) according to any one of claims 1 to 3, characterized in that: The molding material of the first color-changing area (11) includes a first color-changing material, the molding material of the second color-changing area (31) includes a second color-changing material, and the first color-changing material and the second color-changing material include at least one of a temperature-sensitive material and a photosensitive material; The first color-changing region (11) and the second color-changing region (31) include at least one of a thermochromic region and a photochromic region.

10. The diaphragm (122) according to claim 3, characterized in that The molding material of the third color-changing area (41) includes a third color-changing material, and the third color-changing material includes at least one of a temperature-sensitive material and a photosensitive material; The third color-changing region (41) includes at least one of a thermochromic region and a photochromic region.

11. The diaphragm (122) according to claim 9, characterized in that The photosensitive material includes a photoluminescent material and a photochromic material.

12. A housing (102), characterized in that The invention comprises a base shell (112) and a diaphragm (122) according to any one of claims 1 to 11, wherein the diaphragm (122) is arranged on one surface of the base shell (112) through a connecting layer (20).

13. An electronic device (100), characterized in that The invention comprises a housing (101), at least a part of which is the casing (102) according to claim 12.

14. The electronic device (100) according to claim 13, characterized in that The housing (101) forms a receiving cavity, and the diaphragm (122) of the housing (101) is located on a surface of the base shell (112) of the housing (101) facing the receiving cavity.

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