CN113391495A

CN113391495A - Electronic equipment, shell assembly and electrochromic module

Info

Publication number: CN113391495A
Application number: CN202110719968.XA
Authority: CN
Inventors: 叶留留
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2021-09-14

Abstract

The application provides an electronic device, a housing assembly and an electrochromic module; the electrochromic module includes: the color-changing assembly comprises a color-changing assembly, a first appearance membrane and a second appearance membrane; the color-changing assembly comprises a first substrate, a first conducting layer, a color-changing material layer, a second conducting layer and a second substrate which are sequentially stacked; the first appearance membrane is attached to the surface of one side of the color changing assembly; the first appearance membrane comprises a first base material and a first optical membrane layer arranged on the surface of the first base material; the second appearance membrane is attached to one side surface of the color-changing assembly; the second appearance membrane comprises a second base material and a second optical membrane layer arranged on the surface of the second base material; the color-changing assembly is clamped between the first appearance membrane and the second appearance membrane. The electrochromic module has controllable multiple shadows and colors, can generate abundant color effect changes, enhances the use pleasure of users, and improves the grade and the added value of products.

Description

Electronic equipment, shell assembly and electrochromic module

Technical Field

The invention relates to the technical field of electrochromic module structures, in particular to electronic equipment, a shell assembly and an electrochromic module.

Background

With the development of communication technology, mobile terminals such as mobile phones and tablet computers have become indispensable tools for people. When a consumer faces a mobile terminal product with full-purpose of enamel, not only needs to consider whether the functions of the product meet the requirements of the consumer, but also the appearance of the product is one of the important factors for judging whether the consumer purchases the product. However, as the mobile terminal is iterated, the appearance of each brand of mobile terminal gradually becomes homogeneous, the appearance identification is poor, and after the mobile terminal leaves the factory, the color and the pattern of the mobile terminal are usually fixed and are easy to generate aesthetic fatigue for a long time.

The shell of the existing electronic product such as the smart phone is generally composed of a protective glass cover plate with a built-in decorative membrane or plastic and the like. The color or pattern of the shell is relatively fixed, the effect of various color changes cannot be realized, and the appearance expressive force is not ideal. And the shell has a single function, only plays a role in protecting the mobile phone, cannot realize a dynamic effect along with the change of the mobile phone, and lacks interaction with a user.

Some proposals have been made for decorative films that can change color for use on cellular phones based on electrochromic technology. But still has the problem of single color effect.

Disclosure of Invention

A first aspect of the embodiments of the present application provides an electrochromic module, including:

the color-changing assembly comprises a first substrate, a first conducting layer, a color-changing material layer, a second conducting layer and a second substrate which are sequentially stacked;

the first appearance membrane is attached to one side surface of the color changing assembly; the first appearance membrane comprises a first base material and a first optical membrane layer arranged on the surface of the first base material;

the second appearance membrane is attached to one side surface of the color changing assembly; the second appearance membrane comprises a second base material and a second optical membrane layer arranged on the surface of the second base material;

the color-changing assembly is clamped between the first appearance membrane and the second appearance membrane.

In a second aspect, an embodiment of the present application provides a housing assembly, where the housing assembly includes a transparent housing and the electrochromic module described in any of the above embodiments, and the transparent housing is disposed on a surface of the electrochromic module, where the first appearance membrane deviates from the electrochromic assembly.

In addition, this application embodiment provides an electronic equipment again, electronic equipment includes control circuit board and the casing subassembly in the above-mentioned embodiment, control circuit board with the electrochromic module electricity of casing subassembly is connected, control circuit board is used for controlling electrochromic module discolours.

The electrochromic module that this application embodiment provided sets up outward appearance diaphragm (first outward appearance diaphragm and second outward appearance diaphragm) respectively through the both sides at the subassembly that discolours, even if also have dual light and shadow effect and colour feel under the condition that the colour change does not take place for the subassembly that discolours, then can produce abundanter colour effect change under the condition that the subassembly circular telegram discolours that discolours, can strengthen user's use enjoyment, improved product grade and added value.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic cross-sectional view of an embodiment of an electrochromic module for an electronic device housing assembly;

FIG. 2 is a schematic diagram of a partial structural stack of one embodiment of an electrochromic module;

FIG. 3 is a schematic cross-sectional view of an embodiment of a first appearance membrane of the present application;

FIG. 4 is a schematic cross-sectional view of another embodiment of the first appearance membrane of the present application;

FIG. 5 is a schematic cross-sectional view of a structure of yet another embodiment of the first appearance membrane of the present application;

FIG. 6 is a schematic cross-sectional view of a second embodiment of a appearance membrane of the present application;

FIG. 7 is a schematic cross-sectional view of another embodiment of a second appearance membrane of the present application;

FIG. 8 is a schematic cross-sectional view of an embodiment of the housing assembly of the present application;

FIG. 9 is a schematic structural diagram of an embodiment of an electronic device of the present application;

FIG. 10 is a schematic sectional view of the electronic device at A-A in the embodiment of FIG. 9;

fig. 11 is a block diagram illustrating a structural composition of an embodiment of an electronic device according to the present application.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be noted that the following examples are only illustrative of the present invention, and do not limit the scope of the present invention. Likewise, the following examples are only some but not all examples of the present invention, and all other examples obtained by those skilled in the art without any inventive step are within the scope of the present invention.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

As used herein, an "electronic device" (or simply "terminal") includes, but is not limited to, an apparatus that is configured to receive/transmit communication signals via a wireline connection, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection, and/or another data connection/network, and/or via a wireless interface (e.g., for a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter, and/or another communication terminal). A communication terminal arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal" or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; a Personal Communications System (PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; PDAs that may include radiotelephones, pagers, internet/intranet access, Web browsers, notepads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A cellular phone is an electronic device equipped with a cellular communication module.

For the color change scheme of the mobile phone shell, some technologies are used in the conventional technology, for example, some technical schemes are that the temperature-sensitive color-change ink is coated on the surface of the substrate of the battery shell, the patterns on the shell can change according to the ambient temperature, but for the temperature-sensitive color-change mobile phone shell, the color change condition depends on the ambient temperature, the color change scene is limited, the color change efficiency is directly influenced, and the color change cannot be accurately controlled.

In view of the above technical problems, the present disclosure provides a structure of an electrochromic module. Referring to fig. 1, fig. 1 is a schematic cross-sectional view of an embodiment of an electrochromic module for an electronic device housing assembly; it should be noted that the housing assembly in the present application may be used in an electronic device, and the electronic device may include a mobile phone, a tablet computer, a notebook computer, a wearable device, and the like. The electrochromic module 10a includes, but is not limited to, the following structural components: a color changing assembly 100, a first appearance membrane 200, and a second appearance membrane 300. It should be noted that the terms "comprises" and "comprising," and any variations thereof, in the embodiments of the present application, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or may alternatively include other steps or elements inherent to such process, method, article, or apparatus.

Specifically, the color changing assembly 100 includes a first substrate 110, a first conductive layer 120, a color changing material layer 130, a second conductive layer 140, and a second substrate 150, which are sequentially stacked. Optionally, in this embodiment, the first substrate 110 and the second substrate 150 are made of a flexible transparent resin material, so that the entire structure of the electrochromic module 100 is in a flexible and bendable structural form. The first substrate 110 and the second substrate 150 function to support and protect internal structures. In some embodiments, the first substrate 110 and the second substrate 150 may be made of PET (Polyethylene terephthalate, PET or PEIT, polyester resin, or a condensation polymer of terephthalic acid and ethylene glycol), PMMA (poly (methyl methacrylate), PMMA (PMMA), or acryl, Acrylic, or organic glass), PC (Polycarbonate, PC) is a polymer containing carbonate in a molecular chain, PI (Polyimide), and the like. Further material types for the first substrate 110 and the second substrate 150 are not listed and detailed herein within the understanding of those skilled in the art. The forming method of the first conductive layer 120 and the second conductive layer 140 may be Physical Vapor Deposition (PVD), specifically including vacuum evaporation, sputtering, ion plating (hollow cathode ion plating, hot cathode ion plating, arc ion plating, reactive ion plating, radio frequency ion plating, direct current discharge ion plating), and the like.

The thicknesses of the first conductive layer 120 and the second conductive layer 140 may be between 100nm and 300nm, and specifically, may be 100nm, 120nm, 150nm, 200nm, 280nm, 300nm, and the like. The first conductive layer 120 and the second conductive layer 140 are made of transparent conductive materials. The transparent conductive material can be Indium Tin Oxide (ITO), zinc aluminum oxide (AZO), tin oxide doped with Fluorine (FTO), graphene film or the like.

Referring to fig. 2, fig. 2 is a schematic partial structure lamination diagram of an embodiment of an electrochromic module, wherein the color-changing material layer 130 further includes a sub-layer structure, and as shown in fig. 2, the color-changing material layer 130 includes an electrochromic layer (i.e., EC layer) 131, a dielectric layer 132, and an ion storage layer (i.e., IC layer) 133 sandwiched between the first conductive layer 120 and the second conductive layer 140 and sequentially stacked. Alternatively, the material of the electrochromic layer 131 may be selected from organic polymers (including polyaniline, polythiophene, etc.), inorganic materials (prussian blue, transition metal oxides such as tungsten trioxide), and organic small molecules (viologen), etc. In the embodiment of the present application, the electrochromic layer 131 is exemplified as an organic polymer, and the electrochromic layer 131 may be a solid or gel material. Alternatively, the ion storage layer 133 and the dielectric layer 132 may be formed on the conductive layer by blade coating, and the electrochromic layer 131 (wherein the electrochromic layer 131 is the organic polymer or the inorganic material as described above) may be formed by blade coating or drip irrigation, and the detailed technical features thereof will not be described in detail herein within the understanding of those skilled in the art.

Optionally, with continued reference to fig. 1, the color-changing assembly 100 in this embodiment further includes a rubber frame 160, and the rubber frame 160 is disposed around the color-changing material layer 130. The water vapor transmission rate of the rubber frame 160 is not more than 10 g/square meter/day. In the embodiment of the present application, the water vapor permeation direction of the rubber frame 160 is a physical characteristic that the water vapor permeates through the rubber frame 160 from the outer side surface of the rubber frame 160 in the thickness direction to reach the surface of the side adjacent to the color-changing material layer 130. Alternatively, the adhesive frame 160 may be formed by curing an epoxy-based adhesive or an acrylic-based adhesive.

In order to ensure the reliability and effectiveness of the waterproof function, the thickness of the rubber frame 160 in this embodiment may be greater than 1 mm. Specifically, the thickness may be 1.1mm, 1.2mm, 1.5mm, 2mm, 3mm, etc., and the specific numerical values are not particularly limited and are not listed here. It should be noted that the thickness of the rubber frame 160 is not larger than 1mm, and is not necessarily larger, and it is better to consider the problem of the whole black edge (width of the non-variable color region) of the electrochromic module after the requirement of the water vapor barrier performance is satisfied, and generally, the thickness of the rubber frame 160 is controlled within 10 mm.

The rubber frame in this embodiment requires: the color-changing material can be ensured by limiting the water vapor permeability of the frame 160 to 1 to 10 g/m/day under the conditions that the ambient temperature is 40 ℃ and the Relative Humidity is 90% (which means the percentage of the water vapor pressure in the air to the saturated water vapor pressure at the same temperature or the ratio of the absolute Humidity of the humid air to the maximum absolute Humidity that can be achieved at the same temperature or the ratio of the water vapor partial pressure in the humid air to the saturated water pressure at the same temperature, and the Relative Humidity (Relative Humidity) is expressed by RH (which means the ratio of the absolute Humidity in the air to the saturated absolute Humidity at the same temperature and pressure, and the quotient is a percentage) (that is, the ratio of the mass of the water vapor contained in the humid air to the mass of the water vapor contained in the saturated air at the same temperature and pressure is expressed by a percentage) The material layer 130 is not polluted, so that the color change performance of the electrochromic module is stabilized, and the service life is prolonged.

Optionally, the bonding interface between the rubber frame 160 and other structural layers may be processed, for example, the bonding interface is the contact surface between the two opposite ends of the rubber frame 160 and the second conductive layer 140 and the first conductive layer 120 respectively in the embodiment of fig. 1. Specific treatment methods of the bonding interface include plasma treatment, roughening, printing of an ink layer, and the like, in order to improve the bonding strength between the rubber frame 160 and other structural layers, and the water vapor mainly enters from the body of the rubber frame 160, not from the bonding interface. The two ends of the rubber frame 160 can be firmly bonded. It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present application are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

Optionally, the glue frame 160 may further be doped with a water vapor blocking agent, which may be added in the glue during the formation of the glue frame 160. The mass fraction of the water vapor barrier agent in the rubber frame 160 is 1-10%. Specifically, the amount of the water vapor barrier agent may be 1%, 3%, 5%, 8%, 10%, or the like, and the mass fraction ratio of the water vapor barrier agent may be increased appropriately without affecting the strength of the rubber frame 160. Specifically, some spacers can be added into the glue, and the mass fraction of the spacers is about 1-10% for blocking the path of water vapor; or a certain amount of molecular sieve is added for absorbing water vapor and delaying the service life. Wherein, the main components of the Spacer are SiO2 and micron SiO2 micron spheres. Molecular sieves are a common concept in chemistry, and the specific components are hydrated aluminosilicate (zeolite) or natural zeolite and the like. The Spacer is SiO2 micron ball, so it can block water vapor, and the molecular sieve can absorb water vapor. The two can be added separately or together.

Optionally, with reference to fig. 1, the color-changing assembly in the embodiment of the present application may further include a metal trace 180, where the metal trace 180 specifically includes a first metal trace 181 and a second metal trace 182; the first metal trace 181 is connected to the first conductive layer 120, and the second metal trace 182 is connected to the second conductive layer 140. The metal trace 180 includes but is not limited to a multi-layer trace structure such as a silver paste line, a copper plated layer, an aluminum plated layer, or a molybdenum aluminum molybdenum layer. Referring to fig. 2, in the present embodiment, the first metal trace 181 is disposed along an edge position close to the surface of the first conductive layer 120, and the second metal trace 182 is disposed along an edge position close to the surface of the second conductive layer 140. The specific structure of the wire has various design forms, and may be an L-shaped or annular wire, etc., and is not limited specifically here. In addition, the metal trace 180 in this embodiment is disposed in the color-changing material layer 130, but in some other embodiments, the metal trace 180 may also be embedded in the rubber frame 160 or a protective layer (not shown) is disposed on the outer periphery of the metal trace 180 to prevent the metal trace 180 and the color-changing material layer 130 from being electrochemically corroded.

In order to allow the color changing member to have a faster color changing speed, the sheet resistance of the first conductive layer 120 and the second conductive layer 140 may be set to a specific value of 10 to 150 ohms, such as 10 ohms, 20 ohms, 40 ohms, 50 ohms, 80 ohms, 100 ohms, 120 ohms, 150 ohms, etc.; the sheet resistance of the first metal trace 181 and the second metal trace 182 may be 0.05-2 ohms, and may specifically be 0.05 ohms, 0.06 ohms, 0.1 ohms, 1.2 ohms, 1.5 ohms, 2 ohms, and the like, which is not limited herein. The coloring speed of the electrochromic module can be between 2-5s, the fading speed between 3-5s, or faster. The driving current of the color-changing component only needs 5-10 mA.

Referring to fig. 1, a first appearance film 200 is attached to a side surface of the color-changing assembly 100; the second appearance membrane 300 is attached to one side surface of the color-changing assembly 100, and the color-changing assembly 100 is sandwiched between the first appearance membrane 200 and the second appearance membrane 300.

Optionally, the first appearance film 200 includes a first substrate and a first optical film layer disposed on a surface of the first substrate. Referring to fig. 3, fig. 3 is a schematic cross-sectional view of a structure of an embodiment of a first appearance film of the present application, in which the first appearance film 200 includes a first substrate 210 and a first optical film layer 220 disposed on a surface of the first substrate 210. The first substrate 210 may be made of a flexible material, including flexible transparent resin, flexible glass, and the like. Such as PET (Polyethylene terephthalate, abbreviated as PET or PEIT, commonly called polyester resin, a polycondensate of terephthalic acid and ethylene glycol), PMMA (poly (methyl methacrylate), abbreviated as PMMA), also called acryl, Acrylic or plexiglass, PC (Polycarbonate, abbreviated as PC), which is a high molecular polymer containing carbonate groups in its molecular chain, PI (Polyimide), and the like.

Optionally, the first optical film layer 220 includes a first optical coating layer 221 and a first color layer 222 sequentially stacked on the surface of the first substrate 210. The first optical coating layer 221 may be one or more antireflection coating layers with an optical antireflection function, a coating layer with a specific optical effect, a coating layer with a protective function, a coating layer with an insulating function, a functional coating layer with a function of increasing the layer-to-layer connection performance, and the like, which are formed by a physical vapor deposition method. The first color layer 222 may be an ink layer with a specific color selected according to design requirements, wherein the number of the first color layer 222 may be multiple, so as to achieve the effect of color mixing or improving the adhesion strength.

Optionally, referring to fig. 4, fig. 4 is a schematic cross-sectional view of a structure of another embodiment of the first appearance film of the present application, in this embodiment, the first appearance film 200 also includes a first substrate 210 and a first optical film layer 220 disposed on a surface of the first substrate 210. The first optical film layer 220 includes a first optical coating layer 221 and a first color layer 222. Unlike the previous embodiments, the first optical coating layer 221 and the first color layer 222 in this embodiment are respectively disposed on two opposite side surfaces of the first substrate 210. The first optical coating layer 221 may also be one or more antireflection coating layers with an optical antireflection effect, a coating layer with a specific optical effect, a coating layer with a protective effect, a coating layer with an insulating effect, a functional coating layer with an increased layer-to-layer connection performance, and the like formed by a physical vapor deposition method. The first color layer 222 may be an ink layer with a specific color selected according to design requirements, wherein the number of the first color layer 222 may be multiple, so as to achieve the effect of color mixing or improving the adhesion strength.

Optionally, referring to fig. 5, fig. 5 is a schematic cross-sectional view of a structure of a first appearance film 200 according to another embodiment of the present disclosure, in this embodiment, the first appearance film also includes a first substrate 210 and a first optical film layer 220 disposed on a surface of the first substrate 210. Unlike the previous embodiments, the first optical film layer 220 in this embodiment further includes a first texture layer 223, and the first texture layer 223 is disposed between the first optical coating layer 221 and the first substrate 210. The first texture layer 223 may be formed by UV transfer, and may specifically be any one of lens patterns, bullet patterns, and light pillar patterns.

Referring to fig. 6, fig. 6 is a schematic cross-sectional view illustrating a structure of a second appearance film 300 according to an embodiment of the present disclosure, in which the second appearance film 300 includes a second substrate 310 and a second optical film layer 320 disposed on a surface of the second substrate 310; the second substrate 310 may be made of a water oxygen barrier film. Specifically, the second substrate 310 may include a carrier 311 and a water and oxygen barrier layer 312 disposed on a surface of the carrier 311. The carrier plate 311 may be made of a flexible material, and includes flexible transparent resin, flexible glass, and the like. Such as PET (Polyethylene terephthalate, abbreviated as PET or PEIT, commonly called polyester resin, a polycondensate of terephthalic acid and ethylene glycol), PMMA (poly (methyl methacrylate), abbreviated as PMMA), also called acryl, Acrylic or plexiglass, PC (Polycarbonate, abbreviated as PC), which is a high molecular polymer containing carbonate groups in its molecular chain, PI (Polyimide), and the like.

Alternatively, the water and oxygen barrier layer 312 may be any one or more of silicon oxide (such as silicon dioxide), aluminum oxide (aluminum oxide), and silicon nitride. The water vapor transmission rate of the second substrate 310 is 10 mg/day/square meter (the test environment may be 40 ℃ at ambient temperature and 90% at relative humidity). The excellent water vapor barrier property of the second appearance membrane 300 ensures that the color changing function of the rear cover of the electronic equipment applying the electrochromic module does not lose effectiveness after 7 days of a constant temperature and humidity experiment, and the electrochromic function is efficient and long-lasting.

Optionally, with reference to fig. 6, the second optical film 320 includes a second optical coating layer 321 and a second color layer 322 sequentially stacked on the surface of the second substrate 310. The second optical coating layer 321 may be one or more antireflection coating layers with optical antireflection function, a coating layer with a specific optical effect, a coating layer with a protective function, a coating layer with an insulating function, a functional coating layer with a function of increasing the layer-to-layer connection performance, and the like, which are formed by a physical vapor deposition method. Optionally, the second color layer 322 may be an ink layer with a specific color selected according to design requirements, wherein the number of the second color layer 322 may be multiple, so as to achieve the effect of color mixing or improving the adhesion strength.

Optionally, referring to fig. 7, fig. 7 is a schematic cross-sectional view of a structure of another embodiment of the second appearance film sheet of the present application, in this embodiment, the second appearance film sheet 300 also includes a second substrate 310 and a second optical film layer 320 disposed on a surface of the second substrate 310. Unlike the previous embodiments, the second optical film layer 320 in this embodiment further includes a second texturing layer 323, and the second texturing layer 323 is disposed between the second optical coating layer 321 and (the carrier plate 311 of) the second substrate 310. The second texture layer 323 may be formed by UV transfer printing, and may specifically be any one of lens patterns, bullet patterns, and light pillar patterns.

Alternatively, the overall thickness of the second appearance membrane 300 in this embodiment may be within 50 um. It should be noted that the terms "first", "second" and "third" in the embodiments of the present application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In addition, a housing assembly is further provided in the embodiments of the present application, please refer to fig. 8, fig. 8 is a schematic structural section view of an embodiment of the housing assembly of the present application; it should be noted that the housing assembly in the present application may be used in an electronic device, and the electronic device may include a mobile phone, a tablet computer, a notebook computer, a wearable device, and the like. The housing assembly 10 in this embodiment includes a transparent housing 20a and the electrochromic module 10a in the previous embodiment. The transparent casing 20a and the first appearance membrane 200 of the electrochromic module 10a face away from the color-changing assembly 100. The electrochromic module 10a of the present embodiment is only illustrated in one configuration.

The transparent casing 20a may be bonded to the first appearance film 200 by an optical adhesive 201. The material of the transparent case 20a may be glass, transparent resin, or the like. In addition, the transparent casing 20a itself may be subjected to rubbing, etching, plating, etc. to form an appearance effect, and the detailed features of this part will not be described in detail here. Optionally, the water vapor transmittance of the selected optical glue 201 is not more than 10 g/m/day, and may be epoxy glue or acrylic glue. The thickness of the optical cement 201 can be 25um and the interlayer drawing force is more than 16N/25 mm.

In the housing assembly in this embodiment, the two sides of the color-changing assembly 100 are sealed by the transparent housing 20a and the second appearance membrane (membrane structure with water and oxygen blocking functions) to ensure the reliability and chemical stability of the color-changing material layer, thereby prolonging the service life of the electrochromic module 10 a. For detailed structural features of the electrochromic module 10a, please refer to the related description of the foregoing embodiments, and further description is omitted here.

The housing assembly that this application embodiment provided, its electrochromic module sets up the outward appearance diaphragm respectively through the both sides at the subassembly that discolours, even if also have dual shadow effect and colour feel under the condition that the colour change does not take place for the subassembly that discolours, then can produce abundanter colour effect change under the condition that the subassembly circular telegram discolours that discolours, can strengthen user's use enjoyment, improved product grade and added value.

Further, an electronic device is provided in an embodiment of the present application, please refer to fig. 9 and fig. 10 together, fig. 9 is a schematic structural diagram of an embodiment of the electronic device of the present application, fig. 10 is a schematic structural sectional view of the electronic device at a position a-a in the embodiment of fig. 9, and the electronic device in the embodiment may include a display module 30, a housing assembly 10, and a control circuit board 20. The housing assembly 10 may include an electrochromic module 10a, a transparent housing 20a, and a middle frame 30 a. It should be noted that, in the embodiment of the present application, the electronic device is only described in a structure that the electronic device includes the middle frame, and in other embodiments, the electronic device may not include the middle frame structure, that is, a structure that the rear cover plate (the transparent casing 20a) of the casing assembly directly cooperates with the display screen module 30, which is not limited herein.

Optionally, the display screen module 30, the electrochromic module 10a of the housing assembly 10, and the transparent housing 20a are respectively disposed on two opposite sides of the middle frame 30 a. The display screen module 30 and the transparent shell 20a are matched to form an accommodating space 1000, the control circuit board 20 and the electrochromic module 10a are arranged in the accommodating space 1000, and the electrochromic module 10a is attached to the inner surface of the transparent shell 20 a. The control circuit board 20 is electrically connected with the electrochromic module 10a, and the control circuit board 20 is used for controlling the electrochromic module 10a to change color. The detailed technical features of other parts of the electronic device are within the understanding of those skilled in the art, and are not described herein.

Referring to fig. 11, fig. 11 is a block diagram illustrating a structural composition of an embodiment of an electronic device according to the present application, where the electronic device may be a mobile phone, a tablet computer, a notebook computer, a wearable device, and the like, and the embodiment illustrates a mobile phone as an example. The electronic device may include an RF circuit 910, a memory 920, an input unit 930, a display unit 940 (i.e., the display module 30 in the above embodiment), a sensor 950, an audio circuit 960, a wifi module 970, a processor 980 (which may be the control circuit board 20 in the above embodiment), a power supply 990, and the like. Wherein the RF circuit 910, the memory 920, the input unit 930, the display unit 940, the sensor 950, the audio circuit 960, and the wifi module 970 are respectively connected with the processor 980; power supply 990 is used to provide power to the entire electronic device.

Specifically, the RF circuit 910 is used for transmitting and receiving signals; the memory 920 is used for storing data instruction information; the input unit 930 is used for inputting information, and may specifically include a touch panel 931 and other input devices 932 such as operation keys; the display unit 940 may include a display panel 941; the sensor 950 includes an infrared sensor, a laser sensor, etc. for detecting a user approach signal, a distance signal, etc.; a speaker 961 and a microphone 962 are connected to the processor 980 through the audio circuit 960 for emitting and receiving sound signals; the wifi module 970 is used for receiving and transmitting wifi signals, and the processor 980 is used for processing data information of the electronic device. For specific structural features of the electronic device, please refer to the related description of the above embodiments, and detailed descriptions thereof will not be provided herein.

The electronic device in this embodiment has an appearance effect of variable color. The electrochromic module of the shell assembly is provided with the appearance diaphragms (the first appearance diaphragm and the second appearance diaphragm) respectively on two sides of the color change assembly, even if the color change assembly does not have color change, the electrochromic module also has double light and shadow effects and color texture, more abundant color effect changes can be generated under the condition that the color change assembly is electrified to change color, the use pleasure of users can be enhanced, and the product grade and the added value are improved.

The above description is only a part of the embodiments of the present invention, and not intended to limit the scope of the present invention, and all equivalent devices or equivalent processes performed by the present invention through the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. An electrochromic module, comprising:

2. The electrochromic module of claim 1, wherein the second substrate of the second appearance film sheet is a water oxygen barrier film.

3. The electrochromic module of claim 2, wherein the second substrate comprises a carrier and a water-oxygen barrier layer disposed on a surface of the carrier.

4. The electrochromic module of claim 3, wherein the material of the water-oxygen barrier layer comprises any one or more of silicon oxide, aluminum oxide, and silicon nitride.

5. The electrochromic module of claim 4, wherein the second optical film layer comprises a second optical coating layer and a second color layer sequentially stacked on the surface of the second substrate.

6. The electrochromic module of claim 5, wherein the second optical film layer further comprises a second textured layer, the second textured layer being disposed between the second optical coating layer and the second substrate.

7. The electrochromic module of claim 1, wherein the first optical film layer comprises a first optical coating layer and a first color layer sequentially stacked on the surface of the first substrate.

8. The electrochromic module of claim 7, wherein the first optical film layer further comprises a first textured layer, the first textured layer being disposed between the first optical coating layer and the first substrate.

9. A housing assembly comprising a transparent housing and an electrochromic module according to any of claims 1-8, wherein the transparent housing is disposed on a surface of the electrochromic module first appearance membrane facing away from the electrochromic assembly.

10. An electronic device, comprising a control circuit board and the housing assembly of claim 9, wherein the control circuit board is electrically connected to the electrochromic module of the housing assembly, and the control circuit board is configured to control the electrochromic module to change color.