WO2022179244A1 - 变色膜片、壳体组件和电子设备 - Google Patents

变色膜片、壳体组件和电子设备 Download PDF

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Publication number
WO2022179244A1
WO2022179244A1 PCT/CN2021/136838 CN2021136838W WO2022179244A1 WO 2022179244 A1 WO2022179244 A1 WO 2022179244A1 CN 2021136838 W CN2021136838 W CN 2021136838W WO 2022179244 A1 WO2022179244 A1 WO 2022179244A1
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WO
WIPO (PCT)
Prior art keywords
layer
color
film
light
changing
Prior art date
Application number
PCT/CN2021/136838
Other languages
English (en)
French (fr)
Inventor
廖奕翔
吴中正
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202110207804.9A external-priority patent/CN114967200A/zh
Priority claimed from CN202120411544.2U external-priority patent/CN214311196U/zh
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to EP21927668.0A priority Critical patent/EP4290987A1/en
Publication of WO2022179244A1 publication Critical patent/WO2022179244A1/zh
Priority to US18/232,574 priority patent/US20230384632A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0279—Improving the user comfort or ergonomics
    • H04M1/0283—Improving the user comfort or ergonomics for providing a decorative aspect, e.g. customization of casings, exchangeable faceplate
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells

Definitions

  • the present application belongs to the technical field of electronic equipment, and specifically relates to a color-changing diaphragm, a housing assembly and an electronic equipment.
  • the present application provides a color-changing film capable of realizing color change, with strong appearance expression and rich visual effects, which is favorable for application in electronic equipment and enhances the product competitiveness of electronic equipment.
  • the present application provides a color-changing film, comprising a first decoration layer and at least one light adjustment structure disposed on the surface of the first decoration layer, the first decoration layer has a color, each of the adjustment The light structure includes a light adjustment film and a second decoration layer, and the light adjustment film is arranged between the second decoration layer and the first decoration layer, and the second decoration layer is a light-transmitting layer.
  • the present application provides a casing assembly, comprising a casing body and a color-changing diaphragm disposed on the surface of the casing body, the color-changing diaphragm including a first decoration layer and a color-changing diaphragm disposed on the first decoration
  • At least one light adjustment structure on the surface of the layer the first decoration layer has a color
  • each of the light adjustment structures includes a light adjustment film and a second decoration layer
  • the light adjustment film is arranged on the second decoration layer and the second decoration layer.
  • the second decoration layer is a light-transmitting layer.
  • the present application provides an electronic device, including a casing assembly and a control circuit, the casing assembly including a casing body and a color-changing diaphragm disposed on the casing body, the color-changing diaphragm comprising a first decoration layer and at least one light adjustment structure disposed on the surface of the first decoration layer, the first decoration layer has a color, each of the light adjustment structures includes a light adjustment film and a second decoration layer, and the The light-adjusting film is arranged between the second decoration layer and the first decoration layer, the second decoration layer is a light-transmitting layer, and the control circuit is electrically connected to the light-adjusting film.
  • FIG. 1 is a schematic structural diagram of a color-changing film provided by an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of a light-adjusting film provided by an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of a light-adjusting film provided by another embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a light-adjusting film provided by another embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a color-changing film provided by another embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a color-changing film provided by another embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a color-changing film provided by another embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a color-changing film provided by another embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a color-changing film provided by another embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a color-changing film provided by another embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a housing assembly provided by an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
  • FIG. 13 is a schematic diagram of the connection between the dimming film and the flexible circuit board according to an embodiment of the present application.
  • An embodiment of the present application provides a color-changing film, which includes a first decoration layer and at least one dimming structure disposed on the surface of the first decoration layer, the first decoration layer has a color, and each of the dimming structures It includes a dimming film and a second decoration layer, wherein the dimming film is arranged between the second decoration layer and the first decoration layer, and the second decoration layer is a light-transmitting layer.
  • the first decoration layer and the second decoration layer have a color difference.
  • the color-changing film includes the first decoration layer, the light adjustment film and the second decoration layer which are stacked in sequence.
  • the color-changing film has a plurality of the dimming structures, and the plurality of the dimming structures are arranged in layers or the plurality of the dimming structures are arranged in the same layer.
  • the color-changing film has a first color when powered on, and a second color when powered off, one of the first color and the second color is the color of the dimming structure, and the other is the color of the dimming structure.
  • the Lab value of the first color is (L 1 , a 1 , b 1 )
  • the Lab value of the second color is (L 2 , a 2 , b 2 )
  • the absolute value of the difference between 1 and a 2 is greater than 10, or the absolute value of the difference between b 1 and b 2 is greater than 10.
  • the dimming film is a polymer dispersed liquid crystal film
  • the polymer dispersed liquid crystal film includes a first transparent conductive layer, a polymer dispersed liquid crystal layer and a second transparent conductive layer arranged in layers.
  • the light-adjusting film is a polymer network liquid crystal film
  • the polymer network liquid crystal film includes the first transparent conductive layer, the polymer network liquid crystal layer and the second transparent conductive layer arranged in layers.
  • pigment molecules are dispersed in the light-adjusting film.
  • the dimming film is a forward dimming film or a reverse dimming film.
  • the light transmittance of the light-adjusting film is greater than or equal to 80%, and the absolute value of the haze difference of the light-adjusting film before and after switching on and off is greater than or equal to 70%.
  • the first decoration layer includes at least one of a first color layer, a first optical film layer, a first texture layer and a non-conductive metal layer;
  • the second decoration layer includes a second color layer, a second optical layer at least one of the film layer and the second texture layer.
  • the orthographic projection of the second decoration layer on the first decoration layer completely or partially covers the first decoration layer.
  • the color-changing film further includes a first connection layer, and the first connection layer is arranged between the first decoration layer and the dimming structure to connect the first decoration layer and the dimming structure structure; the color-changing film further includes a second connection layer, the second connection layer is arranged between the dimming film and the second decoration layer to connect the dimming film and the second decoration Floor.
  • An embodiment of the present application further provides a casing assembly, including a casing body and a color-changing diaphragm disposed on the surface of the casing body, the color-changing diaphragm including a first decorative layer and a color-changing diaphragm disposed on the first decorative layer At least one dimming structure on the surface, the first decoration layer has a color, each of the dimming structures includes a dimming film and a second decoration layer, and the dimming film is arranged on the second decoration layer and the second decoration layer. Between the first decoration layers, the second decoration layer is a light-transmitting layer.
  • the color-changing film is arranged on the outer surface of the housing body, the first decoration layer is arranged between the housing body and the second decoration layer, or the housing body is a transparent shell
  • the color-changing film is arranged on the inner surface of the transparent casing, and the second decoration layer is arranged between the transparent casing and the first decoration layer.
  • An embodiment of the present application further provides an electronic device, including a casing assembly and a control circuit
  • the casing assembly includes a casing body and a color-changing diaphragm disposed on the casing body, and the color-changing diaphragm includes a first A decoration layer and at least one light adjustment structure disposed on the surface of the first decoration layer, the first decoration layer has a color, each of the light adjustment structures includes a light adjustment film and a second decoration layer, and the adjustment The light film is arranged between the second decoration layer and the first decoration layer, the second decoration layer is a light-transmitting layer, and the control circuit is electrically connected to the light-adjusting film.
  • the electronic device further includes a processor connected to the control circuit, and a signal input device connected to the processor, where the signal input device is used to input signal instructions to the processor, and the processor uses A control instruction is input to the control circuit according to the signal instruction, and the control circuit is used for receiving the control instruction and controlling the color-changing film to change color.
  • the signal input device includes at least one of a touch screen, a physical key, a sensor and a communication module.
  • FIG. 1 is a schematic structural diagram of a color-changing film provided in an embodiment of the application.
  • the color-changing film 100 includes a first decoration layer 10 and at least one light adjustment structure 20 disposed on the surface of the first decoration layer 10 .
  • the first decoration The layer 10 has a color
  • each dimming structure 20 includes a dimming film 21 and a second decoration layer 22, and the dimming film 21 is arranged between the second decoration layer 22 and the first decoration layer 10, and the second decoration layer 22 is Translucent layer.
  • the color-changing film 100 includes the first decoration layer 10 and the light-adjusting structure 20.
  • the color-changing film 100 can have the color effect of the first decorative layer 10. Or it has a color effect in which the first decoration layer 10 and the dimming structure 20 are superimposed, so as to realize discoloration.
  • the color selection range of the first decoration layer 10 and the second decoration layer 22 is not limited, so that the color changeability of the color-changing film 100 is strong, and various color appearances can be realized.
  • the decorative layer of the film has a single appearance effect and no color change effect; and when the electrochromic material is used to achieve discoloration, since the color change of the electrochromic material is fixed, the discoloration effect is fixed, and a variety of changes cannot be achieved. Color changes.
  • the colors of the first decorative layer 10 and the second decorative layer 22 can be selected as required, so that the color-changing film 100 can have different color appearances; the color-changing film 100 can change at least any two colors, and the appearance A wide range of color designs and rich visual effects greatly improves the appearance expression of the color-changing diaphragm 100 .
  • the color-changing film 100 has at least one light-adjusting structure 20, each light-adjusting structure 20 includes a light-adjusting film 21 and a second decoration layer 22, and the light-adjusting film 21 is disposed on the second decoration layer 22 and the second decoration layer 22. Between one decoration layer 10 , the second decoration layer 22 is a light-transmitting layer. That is to say, the dimming film 21 in the dimming structure A is disposed between the first decoration layer 10 and the second decoration layer 22 in the dimming structure A, and the dimming structure A is a anyone.
  • the dimming film 21 exhibits two states of transparency and non-transparency under the condition of on and off, so as to cooperate with the first decorative layer 10 and the second decorative layer 22 to realize the color change of the color-changing film 100 .
  • the dimming film 21 is a forward dimming film or a reverse dimming film.
  • the forward dimming film is a transparent state when powered on, and a non-transparent state when powered off; a reverse dimming film is a non-transparent state when powered on and transparent when powered off.
  • the types of the plurality of light-adjusting films 21 in the plurality of light-adjusting structures 20 can be the same or different, so that different appearance effects can be achieved by switching on and off.
  • the light-adjusting film 21 is a polymer dispersed liquid crystal film (PDLC film).
  • PDLC film is a film formed by a polymer with uniformly dispersed liquid crystal droplets.
  • the refractive index of the light passing through the liquid crystal droplets and the refractive index of the polymer passing through the liquid crystal droplets is greatly different, and the light is strongly scattered, which makes the PDLC film It is non-transparent, even milky white; by controlling the orientation of the liquid crystal droplets, the refractive index of the light passing through the liquid crystal droplets is approximately the same as that of the polymer, and the light is not reflected in the film but directly transmitted.
  • the PDLC film is in a transparent state.
  • the PDLC film is a forward dimming film. That is, by applying an electric field, the orientation of the liquid crystal droplets is controlled to make the PDLC film transparent.
  • FIG. 2 is a schematic structural diagram of a light-adjusting film provided by an embodiment of the application.
  • the light-adjusting film 21 is a PDLC film, and the PDLC film includes a first transparent conductive layer 211 , a polymer dispersed liquid crystal layer 213 and a second layer arranged in layers. Transparent conductive layer 212 .
  • the PDLC film can be connected to an external circuit, and the first transparent conductive layer 211 and the second transparent conductive layer 212 are applied on the polymer dispersed liquid crystal layer 213. voltage to achieve the penetration effect of the PDLC film.
  • the light-adjusting film 21 is a polymer network liquid crystal film (PNLC film).
  • PNLC film polymer network liquid crystal film
  • the liquid crystals in the PNLC film do not form spherical or quasi-spherical droplets, but are distributed in the polymer three-dimensional network, forming a continuous network of channels.
  • the PNLC film is a reverse dimming film. That is, when the electric field is not applied, the PNLC film is transparent, and after the electric field is applied, the PNLC film is non-transparent.
  • FIG. 3 is a schematic structural diagram of a light-adjusting film according to another embodiment of the present application.
  • the light-adjusting film 21 is a PNLC film
  • the PNLC film includes a first transparent conductive layer 211 , a polymer network liquid crystal layer 214 and a Two transparent conductive layers 212 .
  • the PNLC film can be connected to an external circuit, and the polymer network liquid crystal layer 214 is applied through the first transparent conductive layer 211 and the second transparent conductive layer 212. voltage to achieve the opaque effect of the PNLC film.
  • the thicknesses of the polymer dispersed liquid crystal layer 213 and the polymer network liquid crystal layer 214 may be selected as required. In an embodiment of the present application, the thicknesses of the polymer dispersed liquid crystal layer 213 and the polymer network liquid crystal layer 214 may be, but not limited to, 10 ⁇ m-100 ⁇ m, respectively. Specifically, the thicknesses of the polymer dispersed liquid crystal layer 213 and the polymer network liquid crystal layer 214 may be, but not limited to, 10 ⁇ m, 15 ⁇ m, 20 ⁇ m, 35 ⁇ m, 50 ⁇ m, 60 ⁇ m, 70 ⁇ m, 85 ⁇ m, 90 ⁇ m or 100 ⁇ m, respectively.
  • the first transparent conductive layer 211 includes a first substrate layer and a first conductive layer, and the first conductive layer is disposed between the first substrate layer and the second transparent conductive layer 212 .
  • the second transparent conductive layer 212 includes a second substrate layer and a second conductive layer, and the second conductive layer is disposed between the second substrate layer and the first transparent conductive layer 211 .
  • the first substrate layer and the second substrate layer are plastic layers.
  • the material of the plastic layer includes at least one of polyethylene terephthalate, polystyrene, polycarbonate and polymethyl methacrylate.
  • the first substrate layer and the second substrate layer may be, but not limited to, polyethylene terephthalate layers.
  • the thicknesses of the first substrate layer and the second substrate layer may be, but not limited to, 50 ⁇ m-300 ⁇ m, respectively.
  • the thicknesses of the first base material layer and the second base material layer may be the same or different.
  • the thickness of the first base material layer and the second base material layer is within the above thickness range, which can not only ensure good mechanical properties, light transmittance and bending performance, but also will not make the dimming film 21 too thick, which is in line with light and thinning. development trend.
  • the thicknesses of the first substrate layer and the second substrate layer may be, but not limited to, 50 ⁇ m, 70 ⁇ m, 85 ⁇ m, 100 ⁇ m, 125 ⁇ m, 150 ⁇ m, 185 ⁇ m, 200 ⁇ m, 220 ⁇ m, 250 ⁇ m, or 280 ⁇ m, respectively.
  • the materials of the first conductive layer and the second conductive layer are respectively selected from at least one of indium tin oxide, indium zinc oxide, fluorine-doped tin oxide, and aluminum-doped zinc oxide.
  • the material of the first conductive layer and the material of the second conductive layer may be the same or different.
  • the thicknesses of the first conductive layer and the second conductive layer may be, but not limited to, 50 nm-200 nm, respectively.
  • the first conductive layer and the second conductive layer with this thickness have better performance.
  • the thicknesses of the first conductive layer and the second conductive layer may be, but not limited to, 60 nm, 75 nm, 90 nm, 100 nm, 120 nm, 130 nm, 150 nm, 160 nm, 180 nm, 190 nm, or 200 nm, respectively.
  • the first conductive layer and the second conductive layer can be formed by, but not limited to, deposition, coating, etc., such as vacuum evaporation, sputtering, spin coating, etc.
  • the polymer dispersed liquid crystal layer 213 and the polymer network liquid crystal layer 214 may be formed by, but is not limited to, coating.
  • a conductive material can be coated on the plastic layer, and the first transparent conductive layer 211 and the second transparent conductive layer 212 can be obtained after drying; The surface of a transparent conductive layer 211 is covered with a second transparent conductive layer 212, and the dimming film 21 is obtained after drying.
  • FIG. 4 is a schematic structural diagram of a light-adjusting film according to another embodiment of the present application, taking a PDLC film as an example for illustration, wherein the orthographic projection of the polymer-dispersed liquid crystal layer 213 on the first transparent conductive layer 211 completely falls. into the surface of the first transparent conductive layer 211 and cover part of the first transparent conductive layer 211, the orthographic projection of the polymer dispersed liquid crystal layer 213 on the second transparent conductive layer 212 completely falls on the surface of the second transparent conductive layer 212 and covers part of the The second transparent conductive layer 212 .
  • the dimming film 21 further includes a first metal trace 215 and/or a second metal trace 216, the first metal trace 215 is disposed on the first transparent conductive layer 211, and the second metal trace 216 is disposed on the second transparent conductive layer layer 212.
  • the first metal trace 215 may extend along the edge of the first transparent conductive layer 211 and be electrically connected to the first transparent conductive layer 211 ; the second metal trace 216 may extend along the edge of the second transparent conductive layer 212 . The edge extends and is electrically connected with the second transparent conductive layer 212 .
  • the first metal wiring 215 and the second metal wiring 216 may include, but are not limited to, silver paste wiring, copper plating, aluminum plating, or multi-layer wiring structures such as molybdenum, aluminum, and molybdenum.
  • the polymer dispersed liquid crystal layer 213 may cover part of the surface of the first transparent conductive layer 211 and the surface of the second transparent conductive layer 212 during the coating process to form the above-mentioned dislocation structure.
  • the first transparent conductive layer 211 and the polymer-dispersed liquid crystal layer 213 may be cut to expose part of the surface of the second transparent conductive layer 212 for arranging the second metal traces 216, and the second The transparent conductive layer 212 and the polymer-dispersed liquid crystal layer 213 are cut to expose part of the surface of the first transparent conductive layer 211 for arranging the first metal traces 215 .
  • the cutting may be performed by, but not limited to, laser cutting.
  • the periphery of the dimming film 21 can be filled with adhesive to prevent the evaporation of the liquid crystal material and ensure light adjustment. The effect of the membrane 21. It can be understood that other light-adjusting films 21 such as PNLC films can be designed with the same design as above, which will not be repeated here.
  • the color-changing film 100 may have a plurality of light-adjusting structures 20, and the plurality of light-adjusting films 21 in the plurality of light-adjusting structures 20 may all be PDLC films, or all may be PNLC films, and may also be partially PDLC films
  • the film, partly a PNLC film, is not limited.
  • the light transmittance of the light-adjusting film 21 is greater than or equal to 80%. That is to say, the light-adjusting film 21 can ensure high transmittance before and after being turned on and off, so that the appearance effect of the color-changing film 100 in the transparent state can be better presented. It can be understood that the transmittance is the transmittance of light in the wavelength band of 380nm-780nm. Specifically, the transmittance of the light-adjusting film 21 may be, but not limited to, 80%, 81%, 82%, 83%, 84%, or 85%. The absolute value of the difference in haze before and after is greater than or equal to 70%.
  • the haze of the light-adjusting film 21 has obvious differences before and after the power-on and power-off, so that the light-adjusting film 21 exhibits a transition between transparent and non-transparent effects.
  • the absolute value of the haze difference of the dimming film 21 before and after turning on and off is 70%, 72%, 73%, 75%, 76%, 78%, or 80%.
  • the haze of the dimming film 21 is adjusted to be less than 10% in the power-on state, and the haze of the dimming film 21 is adjusted to be more than 80% in the power-off state; or the haze of the light-emitting film 21 is adjusted in the power-off state 10% or less, the haze of the light-emitting film 21 in the energized state is 80% or more.
  • the light transmittance of the light-adjusting film 21 is greater than or equal to 80%, and the absolute value of the haze difference of the light-adjusting film 21 before and after switching on and off is greater than or equal to 70%.
  • the light transmittance of the dimming film 21 is high when the power is turned on and off, and the switching between the transparent and non-transparent effects of the dimming film 21 can be realized by controlling the haze.
  • the haze of the PDLC film in a power-on state is below 10%, and the haze in a power-off state is above 80%, and the light transmittance of the PDLC film is greater than or equal to 80%.
  • the haze of the PNLC film in a power-off state is below 10%, and the haze in a power-on state is above 80%, and the light transmittance of the PNLC film is greater than or equal to 80%.
  • dye molecules are dispersed in the light-adjusting film 21 .
  • the light-adjusting film 21 can have both transparent and non-transparent states, and at the same time also have colors in both transparent and non-transparent states, which is further connected with the first decorative layer 10 and
  • the second decoration layer 22 is matched to form the appearance color of the color-changing film 100 .
  • the pigment molecules are uniformly dispersed in the light-adjusting film 21 , so that the color of the light-adjusting film 21 is uniform.
  • the pigment molecules can be, but are not limited to, red, yellow, green, purple, blue, orange, brown, etc., so that the light-adjusting film 21 is colored and transparent in the transparent state, and colored and opaque in the non-transparent state.
  • the pigment molecules are dispersed in the polymer dispersed liquid crystal layer 213 and/or the polymer network liquid crystal layer 214 , so that the light-adjusting film 21 has a color.
  • the second decorative layer 22 is a light-transmitting layer, so that when the light-adjusting film 21 is in a transparent state, the light-adjusting structure 20 can superimpose the appearance effect of the first decorative layer 10, so that the color-changing film 100 presents the superimposed appearance effect.
  • the light transmittance of the second decoration layer 22 is greater than or equal to 80%.
  • the light transmittance of the second decoration layer 22 may be, but not limited to, 80%, 82%, 85%, 88%, 89%, 90%, or 92%.
  • the second decoration layer 22 includes at least one layer of the second color layer 221 , the second optical film layer 222 and the second texture layer 223 .
  • the second color layer 221 has a color appearance, and the color change film 100 can be obviously changed when the color changing film 100 is turned on and off;
  • the second optical film layer 222 has light and shadow Flowing changing effect;
  • the second texture layer 223 the second decorative layer 22 has a textured appearance.
  • the plurality of second decorative layers 22 in the plurality of dimming structures 20 have color differences, so that the color-changing film 100 can present at least three color changes, with high appearance variability and excellent visual effects . Further, at least one of the texture structure, color, refractive index, transmittance, and gloss of the plurality of second decorative layers 22 in the plurality of dimming structures 20 is different, so that the plurality of second decorative layers 22 The appearance effects are different, and the color-changing film 100 has different appearance effects through superposition.
  • the texture structures of the plurality of second decoration layers 22 are different, including at least one of the type, width, height, length, arrangement, cross-sectional shape, curvature, period, position and distribution of the texture structures.
  • the first decoration layer 10 includes at least one layer of the first color layer 11 , the first optical film layer 12 , the first texture layer 13 and the non-conductive metal layer 14 .
  • the first color layer 11 By arranging the first color layer 11 , the first decorative layer 10 has a chromatic appearance, and the color of the color-changing film 100 is obviously changed when the color-changing film 100 is turned on and off; by arranging the first optical film layer 12 , the first decorative layer 10 has light and shadow The changing effect of flow; by setting the first texture layer 13 , the first decoration layer 10 has a textured appearance; by setting the non-conductive metal layer 14 , the first decoration layer 10 has a metallic color and luster.
  • the thicknesses of the first color layer 11 and the second color layer 221 are not particularly limited.
  • the thicknesses of the first color layer 11 and the second color layer 221 may be, but are not limited to, 3 ⁇ m-20 ⁇ m, respectively, and specifically may be, but are not limited to, 3 ⁇ m, 4 ⁇ m, 5 ⁇ m, 8 ⁇ m, 10 ⁇ m, 13 ⁇ m, and 15 ⁇ m, respectively. , 17 ⁇ m, 18 ⁇ m or 20 ⁇ m, etc.
  • the thicknesses of the first color layer 11 and the second color layer 221 may be the same or different.
  • the first color layer 11 and the second color layer 221 may be formed by, but not limited to, at least one process of offset printing, silk screen printing, printing, and thermal transfer printing.
  • the first color layer 11 and the second color layer 221 may be formed of ink having a color.
  • the first color layer 11 and the second color layer 221 can be a single-layer structure or a multi-layer structure; the ink colors that form different layers can be the same or different.
  • the ink color may be, but not limited to, yellow, orange, red, blue, green, purple, white, black, and the like.
  • the first color layer 11 may be a gradient color layer.
  • the second color layer 221 may be a gradient color layer, so that the color-changing film 100 not only has a color-changing appearance, but also has a gradient color effect, and the visual effect is more abundant.
  • the first color layer 11 may be a light-transmitting layer or a non-light-transmitting layer, which can be specifically selected as required.
  • the materials of the first optical film layer 12 and the second optical film layer 222 may be inorganic substances or organic substances.
  • the organic compound includes at least one of polyethers, polyesters, fluoropolymers and silicon-containing polymers.
  • the material of the first optical film layer 12 and/or the second optical film layer 222 is an organic substance, the first optical film layer 12 and/or the second optical film layer 222 have good flexibility and good bendability, and can be obtained by cutting desired size.
  • the inorganic substance includes at least one of inorganic oxide and inorganic fluoride.
  • the materials of the first optical film layer 12 and the second optical film layer 222 are selected from TiO 2 , Ti 3 O 5 , NbO 2 , Nb 2 O 3 , Nb 2 O 2 , Nb 2 O 5 , and Al 2 O 3 respectively. , at least one of SiO 2 and ZrO 2 .
  • the first optical film layer 12 and the second optical film layer 222 are respectively selected from TiO 2 layer, Ti 3 O 5 layer, NbO 2 layer, Nb 2 O 3 layer, Nb 2 O 2 layer, Nb 2 At least two of the O5 layer, the Al2O3 layer, the SiO2 layer, and the ZrO2 layer.
  • the first optical film layer 12 and the second optical film layer 222 include a layer of Nb 2 O 5 , a layer of SiO 2 , a layer of Nb 2 O 5 and a layer of SiO 2 that are stacked in sequence.
  • the thicknesses of the first optical film layer 12 and the second optical film layer 222 are not particularly limited. In one embodiment, the thicknesses of the first optical film layer 12 and the second optical film layer 222 may be, but are not limited to, 50 nm-650 nm, respectively, and specifically may be, but are not limited to, 60 nm, 100 nm, 150 nm, 200 nm, 260 nm, and 335 nm, respectively. , 450nm, 500nm or 600nm etc. The thicknesses of the first optical film layer 12 and the second optical film layer 222 may be the same or different.
  • the thicknesses of the first texture layer 13 and the second texture layer 223 are not particularly limited.
  • the thicknesses of the first texture layer 13 and the second texture layer 223 may be, but not limited to, 8 ⁇ m-15 ⁇ m, respectively, and specifically may be, but are not limited to, 8 ⁇ m, 9 ⁇ m, 10 ⁇ m, 11 ⁇ m, 12 ⁇ m, 13 ⁇ m, and 14 ⁇ m, respectively. or 15 ⁇ m etc.
  • the surface of the first texture layer 13 has a plurality of first texture structures
  • the surface of the second texture layer 223 has a plurality of second texture structures.
  • the first texture layer 13 and the second texture layer 223 have rich texture effects.
  • at least one of the type, width, height, length, arrangement, cross-sectional shape, curvature, period, position, and distribution of the first texture structure and the second texture structure are different, so that the color-changing film 100 not only There are color variations, but also texture variations.
  • the non-conductive metal layer 14 makes the casing have metallic luster and improves the metallic texture.
  • the non-conductive metal layer 14 is made of a metal material, which may include, but is not limited to, indium, tin, or indium-tin alloy.
  • the thickness of the non-conductive metal layer 14 is 25 nm-50 nm.
  • the thickness of the non-conductive metal layer 14 is 30nm-45nm.
  • the thickness of the non-conductive metal layer 14 may be, but not limited to, 25 nm, 30 nm, 35 nm, 40 nm, 45 nm or 50 nm.
  • the first decoration layer 10 and/or the second decoration layer 22 further includes an identification layer.
  • the identification layer By setting the identification layer, information such as characters and trademarks can be presented, which further enriches the appearance of the color-changing film 100 .
  • the first decoration layer 10 includes an identification layer. The trademark information of the color-changing film 100 is presented through the identification layer, and the visual effect is more abundant.
  • the first decorative layer 10 is colored by disposing the first color layer 11, the first optical film layer 12 and/or the non-conductive metal layer 14, and the second color layer 221 and/or the second optical film are disposed by disposing the second color layer 221 and/or the second optical film.
  • Layer 222 imparts color to second decorative layer 22 .
  • the color-changing film 100 has a first color when powered on, and a second color when powered off. One of the first color and the second color is the color of the dimming structure 20, and the other is the color of the dimming structure 20. The superimposed color of the dimming structure 20 and the first decoration layer 10 .
  • the first color is the superimposed color of the dimming structure 20 and the first decorative layer 10
  • the second color is the dimming structure 20
  • the first color is the color of the light-adjusting structure 20
  • the second color is the superimposed color of the light-adjusting structure 20 and the first decorative layer 10.
  • the color-changing film 100 when the haze of the light-adjusting film is below 10% and the light transmittance is above 80%, the color-changing film 100 is the superimposed color of the light-adjusting structure 20 and the first decorative layer 10; When the intensity is above 80%, the color-changing film 100 is the color of the light-adjusting structure 20 . In another embodiment of the present application, the color-changing film 100 has a first color when powered on, and a second color when powered off.
  • the Lab value of the first color is (L 1 , a 1 , b 1 )
  • the second color is The Lab value of a color is (L 2 , a 2 , b 2 ), where L 1 is 0-100, a 1 is -128-127, b 1 is -128-127, L 2 is 0-100, a 2 is -128 to 127, and b 2 is -128 to 127.
  • L 1 is 0-100
  • a 1 is -128-127
  • b 1 is -128-127
  • L 2 is 0-100
  • a 2 is -128 to 127
  • b 2 is -128 to 127.
  • the first decoration layer 10 is a blue metal film
  • the second decoration layer 22 is semi-transparent purple
  • the dimming film 21 is milky white in a power-off condition, so that the color-changing film 100 presents the second decoration layer 22 and The superimposed pink effect of the dimming film 21;
  • the dimming film 21 is colorless and transparent under power-on conditions, so that the color-changing film 100 exhibits a deep purple effect of the superimposition of the first decorative layer 10 and the second decorative layer 22.
  • the first decorative layer 10 is a blue metal film
  • the second decorative layer 22 is a textured layer
  • the dimming film 21 is opaque yellow in a power-off condition, so that the color-changing film 100 exhibits a yellow texture effect
  • the light film 21 is colorless and transparent under power-on conditions, so that the color-changing film 100 exhibits a green texture effect.
  • the color-changing film 100 can achieve, but is not limited to, the color change of blue and green, the color change of black and gray, the color change of red and purple, and the like.
  • the discoloration effect of the color-changing film 100 in the present application can be selected in a wide range, with higher application value and stronger practicability.
  • L 2 >L 1 .
  • the color brightness of the second decoration layer 22 is higher than the brightness of the first decoration layer 10 , and it is easier to achieve a color change effect between different color systems when changing color.
  • the absolute value of the difference between a 1 and a 2 is greater than 10. Further, the absolute value of the difference between a 1 and a 2 is greater than 20. Further, the absolute value of the difference between a 1 and a 2 is greater than 30. In yet another embodiment, the absolute value of the difference between b 1 and b 2 is greater than ten. Further, the absolute value of the difference between b 1 and b 2 is greater than 20. Further, the absolute value of the difference between b 1 and b 2 is greater than 30.
  • the first decoration layer 10 includes a 1 ⁇ m logo layer, a 0.5 ⁇ m cyan layer, a 0.5 ⁇ m magenta layer, a 0.5 ⁇ m yellow layer, and a 0.7 ⁇ m black layer arranged in layers.
  • the second decoration layer 22 includes a texture layer of 0.7 ⁇ m, a logo layer of 1 ⁇ m, a cyan layer of 0.5 ⁇ m, a magenta layer of 0.5 ⁇ m, a yellow layer of 0.5 ⁇ m, a black layer of 0.7 ⁇ m and an optical film layer of 0.5 ⁇ m arranged in layers, so as to realize Rich color variations.
  • the first decoration layer 10 and the second decoration layer 22 have a color difference, so that the color difference value of the color change film 100 is larger, and the obvious color change can be realized, and even the transition between different color systems can be realized.
  • the color difference between the first decoration layer 10 and the second decoration layer 22 is greater than 4. Further, the color difference between the first decorative layer 10 and the second decorative layer 22 is greater than 6. Furthermore, the color difference between the first decorative layer 10 and the second decorative layer 22 is greater than 8.
  • the color-changing film 100 includes a light-adjusting structure 20 , and the color-changing film 100 includes a first decorative layer 10 , a light-adjusting film 21 and a second decorative layer 22 that are stacked in sequence.
  • the color-changing film 100 includes a plurality of dimming structures 20 .
  • FIG. 5 is a schematic structural diagram of a color-changing film provided by another embodiment of the present application. The difference from FIG. 1 is that the color-changing film 100 has a plurality of light-adjusting structures 20 , and the plurality of light-adjusting structures 20 are stacked set up.
  • FIG. 6 is a schematic structural diagram of a color-changing film provided by another embodiment of the present application.
  • the color-changing film 100 has a plurality of light-adjusting structures 20 , and the plurality of light-adjusting structures 20 are the same as those shown in FIG. 1 .
  • Layer settings By controlling the power on and off of the regulating structure, the discoloration of different regions of the color-changing film 100 can be realized, so that the color-changing film 100 can not only realize color changing, but also have the appearance of contrasting colors, with rich visual effects.
  • the orthographic projection of the second decoration layer 22 on the first decoration layer 10 completely or partially covers the first decoration layer 10 .
  • the overall color of the color-changing film 100 can be dynamically changed; when the second decorative layer 22 and the first decorative layer 10 are partially overlapped, the color of the color-changing film 100 can be partially overlapped.
  • FIG. 7 is a schematic structural diagram of a color-changing film provided by another embodiment of the present application.
  • the first decorative layer 10 includes a stacked first optical film layer 12 and a first texture.
  • the layer 13, the first color layer 11 and the non-conductive metal layer 14, and the first optical film layer 12 are arranged between the first texture layer 13 and the dimming structure 20, so that the first decorative layer 10 has texture, color and metal texture And the appearance effect of gloss change.
  • the first decoration layer 10 includes at least one layer of a first color layer 11 , a first optical film layer 12 , a first texture layer 13 and a non-conductive metal layer 14 , which can be selected as required.
  • FIG. 8 is a schematic structural diagram of a color-changing film provided by another embodiment of the present application, which is different from FIG. 1 in that the second decorative layer 22 includes a second optical film layer 222 , a second texture and a layered second optical film layer 222 .
  • Layer 223 and second color layer 221 the second color layer 221 is disposed between the second texture layer 223 and the first decoration layer 10, so that the second decoration layer 22 has the appearance effect of changing texture, color and gloss.
  • the second decoration layer 22 includes at least one layer among the second color layer 221 , the second optical film layer 222 and the second texture layer 223 , which can be selected as required.
  • FIG. 9 is a schematic structural diagram of a color-changing film provided by another embodiment of the present application.
  • the color-changing film 100 further includes a first connection layer 30 , and the first connection layer 30 is disposed on the between the first decoration layer 10 and the dimming structure 20 to connect the first decoration layer 10 and the dimming structure 20 .
  • FIG. 10 which is a schematic structural diagram of a color-changing film provided in another embodiment of the present application.
  • the color-changing film 100 further includes a second connection layer 40 , and the second connection layer 40 is disposed on the between the dimming film 21 and the second decoration layer 22 to connect the dimming film 21 and the second decoration layer 22 .
  • the internal structure of the color-changing film 100 is more closely combined.
  • the first connection layer 30 and the second connection layer 40 may be, but are not limited to, optical adhesive layers, so as to ensure the connection between the layer structures without affecting the light transmission effect.
  • the thickness of the color-changing film 100 is 100 ⁇ m-700 ⁇ m.
  • the weight and volume of the color-changing film 100 will not be increased too much, which can be beneficial to the application of the color-changing film 100 in electronic equipment.
  • the thickness of the color-changing film 100 is 120 ⁇ m-650 ⁇ m.
  • the thickness of the color changing film 100 is 150 ⁇ m-580 ⁇ m.
  • the thickness of the color-changing film 100 may be, but not limited to, 100 ⁇ m, 150 ⁇ m, 200 ⁇ m, 260 ⁇ m, 300 ⁇ m, 320 ⁇ m, 400 ⁇ m, 450 ⁇ m, 500 ⁇ m, 590 ⁇ m, 600 ⁇ m, or 670 ⁇ m.
  • the color changing effect of the color changing film 100 is realized, and the appearance of the color changing film 100 is improved, so that the color changing film 100 can realize the dynamic color changing visual effect, which is beneficial to the color changing film 100. application.
  • the present application also provides a housing assembly 300 including the color-changing diaphragm 100 in any of the above embodiments.
  • FIG. 11 is a schematic structural diagram of a housing assembly according to an embodiment of the present application.
  • the housing assembly 300 includes a housing body 200 and a color-changing membrane 100 disposed on the surface of the housing body 200 . By arranging the color-changing film 100, the appearance effect of the housing assembly 300 can be greatly improved.
  • the thickness of the case body 200 is not particularly limited.
  • the thickness of the housing body 200 may be, but not limited to, 0.1 mm-1 mm, such as 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, or 0.9 mm.
  • the specific shape and size of the housing body 200 are not limited, and can be selected and designed according to actual needs.
  • the shape of the housing body 200 can be a 2D shape, a 2.5D shape, a 3D shape, etc. It can be, but not limited to, the rear case, middle frame, etc. of the electronic device.
  • the material of the housing body 200 can be, but is not limited to, any known material that can be used for the housing assembly 300 of the electronic device, such as plastic, glass, and the like. It can be understood that the housing body 200 has an inner surface and an outer surface disposed opposite to each other.
  • the color-changing membrane 100 is disposed on the outer surface of the casing body 200
  • the first decorative layer 10 is disposed between the casing body 200 and the second decorative layer 22 .
  • the casing body 200 is a transparent casing
  • the color-changing film 100 is disposed on the inner surface of the transparent casing
  • the second decorative layer 22 is disposed between the transparent casing and the first decorative layer 10 .
  • the casing body 200 may be a glass casing or a plastic casing.
  • the present application also provides an electronic device, including the housing assembly 300 of any of the foregoing embodiments.
  • the electronic device may be, but not limited to, a mobile phone, a tablet computer, a notebook computer, a watch, MP3, MP4, GPS navigator, digital camera, and the like.
  • the following takes a mobile phone as an example for description.
  • FIG. 12 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
  • the electronic device includes a housing assembly 300 and a control circuit, and the control circuit is electrically connected to the dimming film 21 .
  • the electronic device further includes a flexible circuit board 400 .
  • the dimming film 21 and the control circuit are connected through the flexible circuit board 400 to switch the transparent state and the non-transparent state of the dimming film 21 , thereby realizing the color changing effect of the color-changing film 100 and the housing assembly 300 . Please refer to FIG.
  • FIG. 13 which is a schematic diagram of the connection between a dimming film and a flexible circuit board according to an embodiment of the present application, taking a PDLC film as an example for illustration, wherein the PDLC film has a first transparent conductive layer 211 , a polymer dispersed liquid crystal layer 213 , The second transparent conductive layer 212, the first metal traces 215 and the second metal traces 216, the flexible circuit board 400 connects the first metal traces 215 and the second metal traces 216 of the PDLC film, so as to control the on-off of the PDLC film electricity, thereby realizing the discoloration of the color-changing film 100 .
  • the electronic device includes a housing assembly 300 and a control circuit, the control circuit is electrically connected to the light-adjusting film 21 in the color-changing film 100 ; the control circuit is used for receiving control instructions, and the control instructions are used for controlling the color-changing film 100 to change color .
  • the electronic device further includes a processor connected to the control circuit, and a signal input device connected to the processor, the signal input device inputs a signal instruction to the processor, and the processor inputs control to the control circuit according to the signal instruction instruction; the control circuit is used to control the dimming film to change state according to the control instruction, so as to make the color-changing film 100 change color.
  • the color-changing film 100 can be controlled to change color by controlling the working state of the light-adjusting film 21 , for example, by changing its voltage or current signal state.
  • the signal input device may include at least one of a touch screen, a physical key, a sensor, and a communication module.
  • the signal input device includes a touch screen.
  • the signal instruction input by the signal input device may be an instruction generated during a touch operation received by the touch screen when a certain interface is displayed.
  • the touch operation may include any one of operations such as sliding, clicking, and long pressing in a designated area of the interface.
  • the signal input device includes a physical button, and the signal instruction input by the signal input device may be a trigger instruction of the physical button.
  • the physical button may be a button independent of other function buttons, or it may be a button with other functions of the electronic device (such as power button, volume button, etc.) etc.) to make the processor receive different signal instructions, and then the control circuit can realize the control of the dimming film 21 .
  • the signal input device includes a sensor, and the signal instruction may be an instruction received by the sensor.
  • the sensor may be a proximity sensor, a temperature sensor, an ambient light sensor, etc.
  • the sensor may collect environmental information and/or internal information of the electronic device, and generate signal instructions based on the environmental information and/or internal information. For example, the sensor acquires the internal temperature of the electronic device, generates a signal instruction and sends it to the processor.
  • the processor determines that the internal temperature is greater than the preset temperature value, it generates a control instruction and sends it to the control circuit, and the control circuit receives the control instruction to make the color-changing film change color to achieve Remind the user of the purpose.
  • the signal input device includes a communication module.
  • the signal instructions input by the signal input device can be short messages, multimedia messages, incoming calls, emails, etc., and the short messages, multimedia messages, incoming calls, and emails can be data information in application software in the electronic device.
  • the communication module receives a short message, a multimedia message, an incoming call or an email, etc., and generates a signal command to the processor, the processor generates a control command according to the signal command and sends it to the control circuit, and the control circuit makes the color-changing film change color according to the control command. , to remind the user. Further, after the user reads short messages, multimedia messages, incoming calls or emails, etc., the communication module sends a signal command to the processor, the processor generates a control command according to the signal command and sends it to the control circuit, and the control circuit makes the color-changing film again according to the control command. discoloration.
  • the communication module receives a short message, a multimedia message, an incoming call or an email, etc., and generates a signal command to the processor, the processor generates a control command according to the signal command and sends it to the control circuit, and the control circuit makes the color-changing film according to the control command. Dynamic discoloration occurs to remind the user. Further, the discoloration speed of the color-changing film 100 can be controlled according to different types of information received by the communication module.
  • the communication module when it receives a short message, multimedia message, incoming call or email, etc., it sends a signal instruction to the processor, and when the processor determines that the short message, multimedia message, incoming call or email is a preset contact, the processing The controller generates a control command and sends it to the control circuit, and the control circuit makes the color-changing film change color according to the control command, so as to remind the user that the preset contact information has been received. For example, when there is preset contact information, the color-changing film 100 quickly performs a dynamic change of color conversion, and the like.
  • the electronic device provided by the application has strong variability in appearance effect, rich visual effect and better interactivity, which greatly improves the competitiveness of the product.

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Abstract

一种变色膜片（100）和包括变色膜片（100）的壳体组件（300）和电子设备，变色膜片（100）包括第一装饰层（10）以及设置在第一装饰层（10）表面的至少一个调光结构（20），第一装饰层（10）具有颜色，每一调光结构（20）包括调光膜（21）和第二装饰层（22），且调光膜（21）设置在第二装饰层（22）和第一装饰层（10）之间，第二装饰层（22）为透光层。通过在变色膜片（100）中设置调光结构（20），可以改变变色膜片（100）的颜色，从而实现变色，丰富变色膜片（100）的外观；同时变色膜片（100）的颜色可选范围广，能够实现多样的色彩外观。

Description

变色膜片、壳体组件和电子设备 技术领域
本申请属于电子设备技术领域，具体涉及变色膜片、壳体组件和电子设备。
背景技术
随着电子设备的不断发展，用户对电子设备外观效果的要求也越来越高，单一色调的外观已经无法满足用户需求。因此，越来越多的电子设备的外观效果朝向多样化发展。
发明内容
鉴于此，本申请提供了一种能够实现颜色变化的变色膜片，外观表现力强，视觉效果丰富，有利于在电子设备中应用，提升电子设备的产品竞争力。
第一方面，本申请提供了一种变色膜片，包括第一装饰层以及设置在所述第一装饰层表面的至少一个调光结构，所述第一装饰层具有颜色，每一所述调光结构包括调光膜和第二装饰层，且所述调光膜设置在所述第二装饰层和所述第一装饰层之间，所述第二装饰层为透光层。
第二方面，本申请提供了一种壳体组件，包括壳体本体以及设置在所述壳体本体表面的变色膜片，所述变色膜片包括第一装饰层以及设置在所述第一装饰层表面的至少一个调光结构，所述第一装饰层具有颜色，每一所述调光结构包括调光膜和第二装饰层，且所述调光膜设置在所述第二装饰层和所述第一装饰层之间，所述第二装饰层为透光层。
第三方面，本申请提供了一种电子设备，包括壳体组件和控制电路，所述壳体组件包括壳体本体以及设置在所述壳体本体上的变色膜片，所述变色膜片包括第一装饰层以及设置在所述第一装饰层表面的至少一个调光结构，所述第一装饰层具有颜色，每一所述调光结构包括调光膜和第二装饰层，且所述调光膜设置在所述第二装饰层和所述第一装饰层之间，所述第二装饰层为透光层，所述控制电路与所述调光膜电连接。
附图说明
为了更清楚地说明本申请实施方式中的技术方案，下面将对本申请实施方式中所需要使用的附图进行说明。
图1为本申请一实施方式提供的变色膜片的结构示意图。
图2为本申请一实施方式提供的调光膜的结构示意图。
图3为本申请另一实施方式提供的调光膜的结构示意图。
图4为本申请另一实施方式提供的调光膜的结构示意图。
图5为本申请另一实施方式提供的变色膜片的结构示意图。
图6为本申请另一实施方式提供的变色膜片的结构示意图。
图7为本申请另一实施方式提供的变色膜片的结构示意图。
图8为本申请另一实施方式提供的变色膜片的结构示意图。
图9为本申请另一实施方式提供的变色膜片的结构示意图。
图10为本申请另一实施方式提供的变色膜片的结构示意图。
图11为本申请一实施方式提供的壳体组件的结构示意。
图12为本申请一实施方式提供的电子设备的结构示意图。
图13为本申请一实施方式提供的调光膜与柔性电路板的连接示意图。
标号说明：
第一装饰层-10，调光结构-20，调光膜-21，第二装饰层-22，第一透明导电层-211，第二透明导电层-212，聚合物分散液晶层-213，聚合物网络液晶层-214，第一金属走线-215，第二金属走线-216，第一颜色层-11，第一光学膜层-12，第一纹理层-13，不导电金属层-14，第二颜色层-221，第二光学膜层-222，第二纹理层-223，第一连接层-30，第二连接层-40，变色膜片-100，壳体本体-200，壳体组件-300，柔性电路板-400。
具体实施方式
以下是本申请的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本申请原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也视为本申请的保护范围。
下文的公开提供了许多不同的实施方式或例子用来实现本申请的不同结构。为了简化本申请的公开，下文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本申请。此外，本申请可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施方式和/或设置之间的关系。此外，本申请提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
本申请实施例提供了一种变色膜片，包括第一装饰层以及设置在所述第一装饰层表面的至少一个调光结构，所述第一装饰层具有颜色，每一所述调光结构包括调光膜和第二装饰层，且所述调光膜设置在所述第二装饰层和所述第一装饰层之间，所述第二装饰层为透光层。
其中，所述第一装饰层和所述第二装饰层具有色差。
其中，所述变色膜片包括依次层叠设置的所述第一装饰层、所述调光膜和所述第二装饰层。
其中，所述变色膜片具有多个所述调光结构，多个所述调光结构层叠设置或多个所述调光结构同层设置。
其中，多个所述调光结构中的多个所述第二装饰层之间具有色差。
其中，所述变色膜片在通电时具有第一颜色，在断电时具有第二颜色，所述第一颜色和所述第二颜色中的一个为所述调光结构的颜色，另一个为所述调光结构和所述第一装饰层叠加的颜色。
其中，所述第一颜色的Lab值为(L 1，a 1，b 1)，所述第二颜色的Lab值为(L 2，a 2， b 2)，其中L 2＞L 1、a 1和a 2的差值的绝对值大于10，或b 1和b 2的差值的绝对值大于10。
其中，所述调光膜为聚合物分散液晶膜，所述聚合物分散液晶膜包括层叠设置的第一透明导电层、聚合物分散液晶层和第二透明导电层。
其中，所述调光膜为聚合物网络液晶膜，所述聚合物网络液晶膜包括层叠设置的所述第一透明导电层、聚合物网络液晶层和所述第二透明导电层。
其中，所述调光膜中分散有色素分子。
其中，所述调光膜为正向调光膜或反向调光膜。
其中，所述调光膜的透光率大于或等于80％，所述调光膜在通断电前后的雾度差值的绝对值大于或等于70％。
其中，所述第一装饰层包括第一颜色层、第一光学膜层、第一纹理层和不导电金属层中的至少一层；所述第二装饰层包括第二颜色层、第二光学膜层和第二纹理层中的至少一层。
其中，所述第二装饰层在所述第一装饰层上的正投影完全或部分覆盖所述第一装饰层。
其中，所述变色膜片还包括第一连接层，所述第一连接层设置在所述第一装饰层和所述调光结构之间，以连接所述第一装饰层和所述调光结构；所述变色膜片还包括第二连接层，所述第二连接层设置在所述调光膜和所述第二装饰层之间，以连接所述调光膜和所述第二装饰层。
本申请实施例还提供了一种壳体组件，包括壳体本体以及设置在所述壳体本体表面的变色膜片，所述变色膜片包括第一装饰层以及设置在所述第一装饰层表面的至少一个调光结构，所述第一装饰层具有颜色，每一所述调光结构包括调光膜和第二装饰层，且所述调光膜设置在所述第二装饰层和所述第一装饰层之间，所述第二装饰层为透光层。
其中，所述变色膜片设置在所述壳体本体的外表面，所述第一装饰层设置在所述壳体本体和所述第二装饰层之间，或所述壳体本体为透明壳体，所述变色膜片设置在所述透明壳体的内表面，所述第二装饰层设置在所述透明壳体和所述第一装饰层之间。
本申请实施例还提供了一种电子设备，包括壳体组件和控制电路，所述壳体组件包括壳体本体以及设置在所述壳体本体上的变色膜片，所述变色膜片包括第一装饰层以及设置在所述第一装饰层表面的至少一个调光结构，所述第一装饰层具有颜色，每一所述调光结构包括调光膜和第二装饰层，且所述调光膜设置在所述第二装饰层和所述第一装饰层之间，所述第二装饰层为透光层，所述控制电路与所述调光膜电连接。
其中，所述电子设备还包括与所述控制电路连接的处理器，以及与所述处理器连接的信号输入装置，所述信号输入装置用于向所述处理器输入信号指令，所述处理器用于根据所述信号指令向所述控制电路输入控制指令，所述控制电路用于接收控制指令并控制所述变色膜片变色。
其中，所述信号输入装置包括触控屏、物理按键、传感器和通信模块中的至少一个。
请参考图1，为本申请一实施方式提供的变色膜片的结构示意图，变色膜片100包括第一装饰层10以及设置在第一装饰层10表面的至少一个调光结构20，第一装饰层10具 有颜色，每一调光结构20包括调光膜21和第二装饰层22，且调光膜21设置在第二装饰层22和第一装饰层10之间，第二装饰层22为透光层。
在本申请中，变色膜片100包括第一装饰层10和调光结构20，通过控制调光结构20中的调光膜21，可以使得变色膜片100具有第一装饰层10的颜色效果，亦或是具有第一装饰层10和调光结构20叠加的颜色效果，从而实现变色。与此同时，第一装饰层10和第二装饰层22的颜色可选范围不受限制，使得变色膜片100的颜色可变性强，能够实现多样的色彩外观。相关技术中，仅采用装饰层的膜片外观效果单一，没有颜色的变化效果；而采用电致变色材料实现变色时，由于电致变色材料的颜色变化固定，使得变色效果固定，无法实现多样的颜色变化。本申请中第一装饰层10和第二装饰层22的颜色可以根据需要进行选择，使得变色膜片100可以具有不同的色彩外观；该变色膜片100能够实现至少任意两种颜色的变化，外观颜色设计范围广，视觉效果丰富，极大地提升了变色膜片100的外观表现力。
在本申请中，变色膜片100中具有至少一个调光结构20，每一调光结构20包括调光膜21和第二装饰层22，且调光膜21设置在第二装饰层22和第一装饰层10之间，第二装饰层22为透光层。也就是说，调光结构A中的调光膜21设置在第一装饰层10和该调光结构A中的第二装饰层22之间，调光结构A为至少一个调光结构20中的任意一个。
在本申请中，调光膜21在通断电情况下呈现透明和非透明的两种状态，从而与第一装饰层10和第二装饰层22搭配，实现变色膜片100的变色。
在本申请实施方式中，调光膜21为正向调光膜或反向调光膜。正向调光膜即为在通电情况下为透明状态，断电情况下为非透明状态；反向调光膜则是在通电情况下为非透明状态，断电情况下为透明状态。可以理解的，多个调光结构20中的多个调光膜21的类型可以相同，也可以不同，从而可以通过通断电实现不同的外观效果。
在本申请一实施方式中，调光膜21为聚合物分散液晶膜(PDLC膜)。PDLC膜是均匀分散有液晶微滴的聚合物形成的薄膜，液晶微滴自由取向时，光线通过液晶微滴的折射率与通过聚合物的折射率相差较大，光线发生强烈散射，使得PDLC膜呈现非透明状，甚至是乳白色状；通过控制液晶微滴的取向，使得光线通过液晶微滴的折射率与通过聚合物的折射率近似一致，光线在膜内不发生反射而是直接透射出来，PDLC膜呈现透明状态。在一实施例中，PDLC膜为正向调光膜。也就是说，通过施加电场，控制液晶微滴的取向，使PDLC膜呈透明状。请参阅图2，为本申请一实施方式提供的调光膜的结构示意图，调光膜21为PDLC膜，PDLC膜包括层叠设置的第一透明导电层211、聚合物分散液晶层213和第二透明导电层212。通过设置第一透明导电层211和第二透明导电层212，从而使得PDLC膜可以与外部电路进行连接，通过第一透明导电层211和第二透明导电层212在聚合物分散液晶层213上施加电压，实现PDLC膜的通透效果。
在本申请一实施方式中，调光膜21为聚合物网络液晶膜(PNLC膜)。与PDLC膜相比，PNLC膜中的液晶不是成球形或类球形微滴，而是分布在聚合物三维网络中，形成连续性的通道网。在一实施例中，PNLC膜为反向调光膜。也就是说，在未施加电场时，PNLC 膜呈透明状，施加电场后，PNLC膜呈非透明状。请参阅图3，为本申请另一实施方式提供的调光膜的结构示意图，调光膜21为PNLC膜，PNLC膜包括层叠设置的第一透明导电层211、聚合物网络液晶层214和第二透明导电层212。通过设置第一透明导电层211和第二透明导电层212，从而使得PNLC膜可以与外部电路进行连接，通过第一透明导电层211和第二透明导电层212在聚合物网络液晶层214上施加电压，实现PNLC膜的不透明效果。
在本申请中，聚合物分散液晶层213和聚合物网络液晶层214的厚度可以根据需要进行选择。在本申请一实施例中，聚合物分散液晶层213和聚合物网络液晶层214的厚度可以但不限于分别为10μm-100μm。具体的，聚合物分散液晶层213和聚合物网络液晶层214的厚度可以但不限于分别为10μm、15μm、20μm、35μm、50μm、60μm、70μm、85μm、90μm或100μm。
在本申请一实施方式中，第一透明导电层211包括第一基材层和第一导电层，第一导电层设置在第一基材层和第二透明导电层212之间。在本申请另一实施方式中，第二透明导电层212包括第二基材层和第二导电层，第二导电层设置在第二基材层和第一透明导电层211之间。
在本申请实施例中，第一基材层和第二基材层为塑胶层。通过设置塑胶层，提高第一透明导电层211和第二透明导电层212的柔性。进一步的，塑胶层的材质包括聚对苯二甲酸乙二醇酯、聚苯乙烯、聚碳酸酯和聚甲基丙烯酸甲酯中的至少一种。具体的，第一基材层和第二基材层可以但不限于为聚对苯二甲酸乙二醇酯层。在一具体实施例中，第一基材层和第二基材层的厚度可以但不限于分别为50μm-300μm。第一基材层和第二基材层的厚度可以相同也可以不同。第一基材层和第二基材层的厚度在上述厚度范围之内，既能够保证良好的力学性能、透光性和弯折性能，还不会使调光膜21过厚，符合轻薄化的发展趋势。具体的，第一基材层和第二基材层的厚度可以但不限于分别为50μm、70μm、85μm、100μm、125μm、150μm、185μm、200μm、220μm、250μm或280μm等。
在本申请实施例中，第一导电层和第二导电层的材质分别选自氧化铟锡、氧化铟锌、掺氟氧化锡和掺铝氧化锌中的至少一种。第一导电层的材质和第二导电层的材质可以相同，也可以不同。采用上述材料形成第一导电层和第二导电层，既具有良好的导电性，使得调光膜21的状态变化迅速，同时使导电层具有良好的透光性能，保证变色效果。在一具体实施例中，第一导电层和第二导电层的厚度可以但不限于分别为50nm-200nm。具有该厚度的第一导电层和第二导电层具有较好的使用性能。具体的，第一导电层和第二导电层的厚度可以但不限于分别为60nm、75nm、90nm、100nm、120nm、130nm、150nm、160nm、180nm、190nm或200nm等。
在本申请中，第一导电层和第二导电层可以但不限于通过沉积、涂覆等，如真空蒸发、溅射、旋涂等方式成型，聚合物分散液晶层213和聚合物网络液晶层214可以但不限于通过涂覆成型。在一具体实施例中，可以在塑胶层上涂覆导电材料，经烘干后得到第一透明导电层211和第二透明导电层212；将聚合物分散液晶或聚合物网络液晶涂覆在第一透明导电层211的表面后并覆盖第二透明导电层212，经烘干后得到调光膜21。
请参阅图4，为本申请另一实施方式提供的调光膜的结构示意图，以PDLC膜为例进行说明，其中，聚合物分散液晶层213在第一透明导电层211上的正投影完全落入第一透明导电层211的表面且覆盖部分第一透明导电层211，聚合物分散液晶层213在第二透明导电层212上的正投影完全落入第二透明导电层212的表面且覆盖部分第二透明导电层212。调光膜21还包括第一金属走线215和/或第二金属走线216，第一金属走线215设置在第一透明导电层211上，第二金属走线216设置在第二透明导电层212上。在一实施例中，第一金属走线215可以沿第一透明导电层211的边缘延伸，并与第一透明导电层211电连接；第二金属走线216可以沿第二透明导电层212的边缘延伸，并与第二透明导电层212电连接。第一金属走线215、第二金属走线216可以包括但不限于银浆线、镀铜、镀铝、或者钼铝钼等多层走线结构。在一实施例中，聚合物分散液晶层213可以在涂覆过程中覆盖部分第一透明导电层211的表面和第二透明导电层212的表面，以形成上述错位的结构。在另一实施例中，可以将第一透明导电层211和聚合物分散液晶层213进行切割，以露出部分第二透明导电层212的表面用于设置第二金属走线216，以及将第二透明导电层212和聚合物分散液晶层213进行切割，以露出部分第一透明导电层211的表面用于设置第一金属走线215。具体的，切割可以但不限于采用激光进行切割。在另一实施例中，将上述错位结构的调光膜21与第二装饰层22贴合时，可以将调光膜21的四周用粘结剂填充，以防止液晶材料的蒸发，保证调光膜21的效果。可以理解的，PNLC膜等其他调光膜21可以进行上述相同的设计，对此不在赘述。
在本申请中，变色膜片100可以具有多个调光结构20，多个调光结构20中的多个调光膜21可以均为PDLC膜，也可以均为PNLC膜，还可以部分是PDLC膜，部分是PNLC膜，对此不作限定。
在本申请实施方式中，调光膜21的透光率大于或等于80％。也就是说，调光膜21在通断电前后均可以保证较高的透过率，从而可以更好地使得在透明状态下变色膜片100外观效果的呈现。可以理解的，透光率为在380nm-780nm波段下的光线透过率。具体的，调光膜21的透光率可以但不限于为80％、81％、82％、83％、84％或85％等，在本申请实施方式中，调光膜21在通断电前后的雾度差值的绝对值大于或等于70％。也就是说，在通断电前后调光膜21的雾度具有明显差异，从而使得调光膜21呈现透明和非透明效果的转换。具体的，调光膜21在通断电前后的雾度差值的绝对值为70％、72％、73％、75％、76％、78％或80％等。在一实施例中，在通电状态下调光膜21的雾度在10％以下，在断电状态下调光膜21的雾度在80％以上；或在断电状态下调光膜21的雾度在10％以下，在通电状态下调光膜21的雾度在80％以上。在另一实施例中，调光膜21的透光率大于或等于80％，且调光膜21在通断电前后的雾度差值的绝对值大于或等于70％。也就是说，在通断电时调光膜21的透光率高，通过控制雾度实现调光膜21透明和非透明效果的转换。在一具体实施例中，PDLC膜在通电状态下的雾度在10％以下，在断电状态下的雾度在80％以上，PDLC膜的透光率大于或等于80％。在另一具体实施例中，PNLC膜在断电状态下的雾度在10％以下，在通电状态下的雾度在80％以上，PNLC膜的透光率大于或等于80％。
在本申请实施方式中，调光膜21中分散有色素分子。通过在调光膜21中设置色素分子，从而可以使得调光膜21既具有透明和非透明两种状态，同时在透明和非透明两种状态下还具有颜色，进一步与第一装饰层10和第二装饰层22搭配，形成变色膜片100的外观色彩。进一步的，色素分子均匀分散在调光膜21中，从而使得调光膜21的色彩均匀。具体的，色素分子可以但不限于为红色、黄色、绿色、紫色、蓝色、橙色、棕色等，从而使得调光膜21在透明状态时呈现有色透明状，在非透明状态时呈现有色不透明状。在一实施例中，色素分子分散在聚合物分散液晶层213和/或聚合物网络液晶层214中，从而使得调光膜21具有色彩。
在本申请中，第二装饰层22为透光层，从而使得在调光膜21为透明状态时调光结构20可以叠加第一装饰层10的外观效果，使变色膜片100呈现该叠加的视觉效果。在本申请实施方式中，第二装饰层22的透光率大于或等于80％。具体的，第二装饰层22的透光率可以但不限于为80％、82％、85％、88％、89％、90％或92％等。
在本申请实施方式中，第二装饰层22包括第二颜色层221、第二光学膜层222和第二纹理层223中的至少一层。通过设置第二颜色层221，使得第二装饰层22具有色彩外观，实现变色膜片100在通断电时颜色的明显变化；通过设置第二光学膜层222，使得第二装饰层22具有光影流动的变幻效果；通过设置第二纹理层223，使得第二装饰层22具有纹理外观。
在本申请实施方式中，多个调光结构20中的多个第二装饰层22之间具有色差，从而使得变色膜片100可以呈现至少三种颜色的变化，外观可变性高，视觉效果优异。进一步的，多个调光结构20中的多个第二装饰层22的纹理结构、颜色、折射率、透过率和光泽度中的至少一个具有差异，从而使得多个第二装饰层22的外观效果具有差异，通过叠加使变色膜片100具有不同的外观效果。在一实施例中，多个第二装饰层22的纹理结构不同，包括纹理结构的类型、宽度、高度、长度、排布、截面形状、曲率、周期、位置和分布中的至少一个不同。
在本申请实施方式中，第一装饰层10包括第一颜色层11、第一光学膜层12、第一纹理层13和不导电金属层14中的至少一层。通过设置第一颜色层11，使得第一装饰层10具有色彩外观，实现变色膜片100在通断电时颜色的明显变化；通过设置第一光学膜层12，使得第一装饰层10具有光影流动的变幻效果；通过设置第一纹理层13，使得第一装饰层10具有纹理外观；通过设置不导电金属层14，使得第一装饰层10具有金属色彩和光泽。
在本申请中，第一颜色层11、第二颜色层221的厚度不受特别限制。在一实施例中，第一颜色层11、第二颜色层221的厚度可以但不限于分别为3μm-20μm，具体的可以但不限于分别为3μm、4μm、5μm、8μm、10μm、13μm、15μm、17μm、18μm或20μm等。第一颜色层11、第二颜色层221的厚度可以相同，也可以不同。在本申请实施例中，可以但不限于通过胶印、丝印、打印和热转印中至少一种工艺来形成第一颜色层11和第二颜色层221。在一实施例中，第一颜色层11和第二颜色层221可以由具有颜色的油墨形成。第一颜色层11和第二颜色层221可以为单层结构，也可以为多层结构；形成不同层的油墨颜色 可以相同也可以不同。具体的，油墨颜色可以但不限于为黄色、橙色、红色、蓝色、绿色、紫色、白色、黑色等。在本申请一实施例中，第一颜色层11可以为渐变色层。在本申请另一实施例中，第二颜色层221可以为渐变色层，从而使得变色膜片100不仅具有变色外观，还具有渐变色效果，视觉效果更加丰富。在本申请中，第一颜色层11可以为透光层，也可以为不透光层，具体的可以根据需要进行选择。
在本申请实施方式中，第一光学膜层12、第二光学膜层222的材质可以为无机物，也可以为有机物。可选的，有机物包括聚醚、聚酯、氟代聚合物和含硅聚合物中的至少一种。当第一光学膜层12和/或第二光学膜层222的材质为有机物时，第一光学膜层12和/或第二光学膜层222的柔性好，可弯曲性能好，能够进行剪裁得到所需尺寸。可选的，无机物包括无机氧化物和无机氟化物中的至少一种。进一步的，第一光学膜层12、第二光学膜层222的材质分别选择TiO 2、Ti 3O 5、NbO 2、Nb 2O 3、Nb 2O 2、Nb 2O 5、Al 2O 3、SiO 2和ZrO 2中的至少一种。在一实施例中，第一光学膜层12、第二光学膜层222分别选自TiO 2层、Ti 3O 5层、NbO 2层、Nb 2O 3层、Nb 2O 2层、Nb 2O 5层、Al 2O 3层、SiO 2层和ZrO 2层中的至少两层。在一具体实施例中，第一光学膜层12和第二光学膜层222包括依次层叠设置的Nb 2O 5层、SiO 2层、Nb 2O 5层和SiO 2层。在本申请中，第一光学膜层12、第二光学膜层222的厚度不受特别限制。在一实施例中，第一光学膜层12、第二光学膜层222的厚度可以但不限于分别为50nm-650nm，具体的可以但不限于分别为60nm、100nm、150nm、200nm、260nm、335nm、450nm、500nm或600nm等。第一光学膜层12、第二光学膜层222的厚度可以相同，也可以不同。
在本申请中，第一纹理层13、第二纹理层223的厚度不受特别限制。在一实施例中，第一纹理层13、第二纹理层223的厚度可以但不限于分别为8μm-15μm，具体的可以但不限于分别为8μm、9μm、10μm、11μm、12μm、13μm、14μm或15μm等。在本申请实施方式中，第一纹理层13的表面具有多个第一纹理结构，第二纹理层223的表面具有多个第二纹理结构。通过设置第一纹理结构和第二纹理结构，使得第一纹理层13和第二纹理层223具有丰富的纹理效果。在一实施例中，第一纹理结构和第二纹理结构的类型、宽度、高度、长度、排布、截面形状、曲率、周期、位置和分布中的至少一个不同，从而使得变色膜片100不仅具有颜色变化，还具有纹理变化。
在本申请中，不导电金属层14使壳体具有金属光泽，提高金属质感。在本申请实施方式中，不导电金属层14由金属材质构成，可以但不限于包括铟、锡或铟锡合金。在本申请实施方式中，不导电金属层14的厚度为25nm-50nm。进一步的，不导电金属层14的厚度为30nm-45nm。具体的，不导电金属层14的厚度可以但不限于为25nm、30nm、35nm、40nm、45nm或50nm。
在本申请实施方式中，第一装饰层10和/或第二装饰层22中还包括标识层。通过设置标识层，可以呈现文字、商标等信息，更加丰富变色膜片100的外观。在一实施例中，第一装饰层10包括标识层。通过标识层呈现变色膜片100的商标信息，视觉效果更加丰富。
在本申请中，通过设置第一颜色层11、第一光学膜层12和/或不导电金属层14使得第 一装饰层10具有颜色，通过设置第二颜色层221和/或第二光学膜层222使得第二装饰层22具有颜色。在本申请一实施方式中，变色膜片100在通电时具有第一颜色，在断电时具有第二颜色，第一颜色和第二颜色中的一个为调光结构20的颜色，另一个为调光结构20和第一装饰层10叠加的颜色。以一个调光结构20为例进行说明，当调光膜20为正向调光膜时，第一颜色为调光结构20和第一装饰层10叠加的颜色，第二颜色为调光结构20的颜色；当调光膜20为反向调光膜时，第一颜色为调光结构20的颜色，第二颜色为调光结构20和第一装饰层10叠加的颜色。在一实施例中，当调光膜雾度在10％以下，透光率在80％以上时，变色膜片100为调光结构20和第一装饰层10叠加的颜色；当调光膜雾度在80％以上时，变色膜片100为调光结构20的颜色。在本申请另一实施方式中，变色膜片100在通电时具有第一颜色，在断电时具有第二颜色，第一颜色的Lab值为(L 1，a 1，b 1)，第二颜色的Lab值为(L 2，a 2，b 2)，其中，L 1为0～100，a 1为-128～127，b 1为-128～127，L 2为0～100，a 2为-128～127，b 2为-128～127。可以理解的，通过控制变色膜片100的内部层结构，从而使得变色膜片100在通断电条件下的颜色可选范围广，能够从颜色中进行任意选择，同时在叠加变色时，通过计算叠加的效果从而设置各层的色彩。在一实施例中，第一装饰层10为蓝色金属膜，第二装饰层22为半透紫色，调光膜21在断电条件为乳白色，使得变色膜片100呈现第二装饰层22和调光膜21叠加的粉色效果；调光膜21在通电条件下为无色透明状，使得变色膜片100呈现第一装饰层10和第二装饰层22叠加的深紫色效果。在另一实施例中，第一装饰层10为蓝色金属膜，第二装饰层22为纹理层，调光膜21在断电条件为不透明黄色，使得变色膜片100呈现黄色纹理效果；调光膜21在通电条件下为无色透明状，使得变色膜片100呈现绿色纹理效果。具体的，变色膜片100可以但不限于可以实现蓝色和绿色的变色、黑色和灰色的变色、红色和紫色的变色等。相较于受限于电致变色材料性能的变色，本申请中变色膜片100的变色效果可选择范围广，应用价值更高，实用性更强。在一实施例中，L 2＞L 1。第二装饰层22的颜色亮度高于第一装饰层10的亮度，在变色时更容易实现不同色系之间的变色效果。在另一实施例中，a 1和a 2的差值的绝对值大于10。进一步的，a 1和a 2的差值的绝对值大于20。更进一步的，a 1和a 2的差值的绝对值大于30。在又一实施例中，b 1和b 2的差值的绝对值大于10。进一步的，b 1和b 2的差值的绝对值大于20。更进一步的，b 1和b 2的差值的绝对值大于30。在一具体实施例中，第一装饰层10包括层叠设置的1μm的标识层、0.5μm的青色层、0.5μm的品红色层、0.5μm的黄色层以及0.7μm的黑色层，第二装饰层22包括层叠设置的0.7μm的纹理层、1μm的标识层、0.5μm的青色层、0.5μm的品红色层、0.5μm的黄色层、0.7μm的黑色层以及0.5μm的光学膜层，从而实现丰富的颜色变化。
在本申请实施方式中，第一装饰层10和第二装饰层22具有色差，从而使得变色膜片100颜色变化的色差值较大，实现明显的变色，甚至实现不同色系之间的转变。在一实施例中，第一装饰层10和第二装饰层22的色差值大于4。进一步的，第一装饰层10和第二装饰层22的色差值大于6。更进一步的，第一装饰层10和第二装饰层22的色差值大于8。通过设计第一装饰层10和第二装饰层22的色差值，从而使得变色膜片100在通断电前后 的颜色变化明显，甚至可以实现毫不相干的两种颜色的变色。
请参阅图1，其中变色膜片100包括了一个调光结构20，变色膜片100包括依次层叠设置的第一装饰层10、调光膜21和第二装饰层22。在本申请另一实施例中，变色膜片100包括了多个调光结构20。通过设置多个调光结构20，可以使得变色膜片100实现更多颜色的变化，产品竞争力得到极大的提升。请参阅图5，为本申请另一实施方式提供的变色膜片的结构示意图，其与图1的不同之处在于，变色膜片100具有多个调光结构20，多个调光结构20层叠设置。通过控制调光结构20的通断电，从而实现至少两种颜色的变化。请参阅图6，为本申请另一实施方式提供的变色膜片的结构示意图，其与图1的不同之处在于，变色膜片100具有多个调光结构20，多个调光结构20同层设置。通过控制调控结构的通断电，从而实现变色膜片100不同区域的变色，使得变色膜片100既能够实现变色，又能够具有撞色的外观，视觉效果丰富。在本申请实施方式中，第二装饰层22在第一装饰层10上的正投影完全或部分覆盖第一装饰层10。第二装饰层22完全与第一装饰层10重叠时，可以实现变色膜片100整体颜色的动态变化；第二装饰层22与第一装饰层10部分重叠时，可以实现变色膜片100部分颜色的动态变化，以及部分颜色的固定，从而可以实现拼接颜色外观，效果丰富。
请参阅图7，为本申请另一实施方式提供的变色膜片的结构示意图，其与图1的不同之处在于，第一装饰层10包括层叠设置的第一光学膜层12、第一纹理层13、第一颜色层11和不导电金属层14，第一光学膜层12设置在第一纹理层13和调光结构20之间，从而使得第一装饰层10具有纹理、颜色、金属质感且光泽变化的外观效果。具体的，第一装饰层10包括第一颜色层11、第一光学膜层12、第一纹理层13和不导电金属层14中的至少一层，可以根据需要进行选择。
请参阅图8，为本申请另一实施方式提供的变色膜片的结构示意图，其与图1的不同之处在于，第二装饰层22包括层叠设置的第二光学膜层222、第二纹理层223和第二颜色层221，第二颜色层221设置在第二纹理层223和第一装饰层10之间，从而使得第二装饰层22具有纹理、颜色且光泽变化的外观效果。具体的，第二装饰层22包括第二颜色层221、第二光学膜层222和第二纹理层223中的至少一层，可以根据需要进行选择。
请参阅图9，为本申请另一实施方式提供的变色膜片的结构示意图，其与图1的不同之处在于，变色膜片100还包括第一连接层30，第一连接层30设置在第一装饰层10和调光结构20之间，以连接第一装饰层10和调光结构20。请参阅图10，为本申请另一实施方式提供的变色膜片的结构示意图，其与图1的不同之处在于，变色膜片100还包括第二连接层40，第二连接层40设置在调光膜21和第二装饰层22之间，以连接调光膜21和第二装饰层22。通过设置第一连接层30、第二连接层40，使得变色膜片100内部结构结合更加紧密。具体的，第一连接层30、第二连接层40可以但不限于为光学胶层，从而既保证层结构之间的连接，同时又不会影响透光效果。
在本申请实施方式中，变色膜片100的厚度为100μm-700μm。通过设置上述厚度的变色膜片100，不会过多增加变色膜片100的重量和体积，能够有利于变色膜片100在电子 设备中的应用。进一步的，变色膜片100的厚度为120μm-650μm。更进一步的，变色膜片100的厚度为150μm-580μm。具体的，变色膜片100的厚度可以但不限于为100μm、150μm、200μm、260μm、300μm、320μm、400μm、450μm、500μm、590μm、600μm或670μm等。
本申请通过采用调光结构20与第一装饰层10的结合，实现变色膜片100的变色效果，提升了变色膜片100的外观，使得变色膜片100可以实现动态变色视觉效果，有利于其应用。
本申请还提供了一种壳体组件300，包括上述任一实施方式中的变色膜片100。请参阅图11，为本申请一实施方式提供的壳体组件的结构示意图，壳体组件300包括壳体本体200以及设置在壳体本体200表面的变色膜片100。通过设置变色膜片100，可以使得壳体组件300的外观效果得到大幅度的提升。
在本申请中，壳体本体200的厚度不受特别限制。具体的，壳体本体200的厚度可以但不限于为0.1mm-1mm，如0.2mm、0.3mm、0.4mm、0.5mm、0.6mm、0.7mm、0.8mm或0.9mm等。在本申请中，对壳体本体200具体形状和尺寸不作限定，可以根据实际需要进行选择和设计，例如壳体本体200的形状可以为2D形状、2.5D形状、3D形状等，壳体本体200可以但不限于为电子设备的后壳、中框等。在本申请中，壳体本体200的材质可以但不限于为任何已知的可以用于电子设备壳体组件300的材料，如塑胶、玻璃等。可以理解的，壳体本体200具有相对设置的内表面和外表面。在本申请一实施方式中，变色膜片100设置在壳体本体200的外表面，第一装饰层10设置在壳体本体200和第二装饰层22之间。在本申请另一实施方式中，壳体本体200为透明壳体，变色膜片100设置在透明壳体的内表面，第二装饰层22设置在透明壳体和第一装饰层10之间。具体的，壳体本体200可以为玻璃壳体或塑胶壳体。
本申请还提供了一种电子设备，包括上述任一实施例的壳体组件300。可以理解的，电子设备可以但不限于为手机、平板电脑、笔记本电脑、手表、MP3、MP4、GPS导航仪、数码相机等。下面以手机为例进行说明。请参阅图12，为本申请一实施方式提供的电子设备的结构示意图，电子设备包括壳体组件300和控制电路，控制电路与调光膜21电连接。
在本申请实施方式中，电子设备还包括柔性电路板400。调光膜21与控制电路之间通过柔性电路板400连接，以实现调光膜21透明状态和非透明状态的切换，从而实现变色膜片100和壳体组件300的变色效果。请参阅图13，为本申请一实施方式提供的调光膜与柔性电路板的连接示意图，以PDLC膜为例进行说明，其中PDLC膜具有第一透明导电层211、聚合物分散液晶层213、第二透明导电层212、第一金属走线215和第二金属走线216，柔性电路板400连接PDLC膜的第一金属走线215和第二金属走线216，从而控制PDLC膜的通断电，进而实现变色膜片100的变色。
在本申请中，电子设备包括壳体组件300和控制电路，控制电路与变色膜片100中的调光膜21电连接；控制电路用于接收控制指令，控制指令用于控制变色膜片100变色。在本申请实施一方式中，电子设备还包括与控制电路连接的处理器，以及与处理器连接的信号输入装置，信号输入装置向处理器输入信号指令，处理器根据信号指令向控制电路输入 控制指令；控制电路用于根据控制指令控制调光膜改变状态，进而使变色膜片100变色。具体的，可以通过控制调光膜21的工作状态，例如改变其电压或者电流信号状态来控制变色膜片100变色。
在本申请实施方式中，信号输入装置可以包括触控屏、物理按键、传感器和通信模块中的至少一个。在一实施例中，信号输入装置包括触控屏。信号输入装置输入的信号指令可以为触控屏在显示某一界面时接收到的触控操作时生成的指令。其中，触控操作可以包括在该界面的指定区域滑动、点击以及长按等操作中的任一种。在另一实施例中，信号输入装置包括物理按键，信号输入装置输入的信号指令可以为物理按键的触发指令。其中，物理按键可以是独立于其他功能按键的按键，也可以是与电子设备的其他功能按键(如电源键、音量键等)，根据不同的按键触发方式(例如同时按下电源键和音量键等)使处理器接收不同的信号指令，进而控制电路可以实现对调光膜21的控制。在又一实施例中，信号输入装置包括传感器，信号指令可以为传感器接收到的指令。具体的，传感器可以为接近传感器、温度传感器、环境光传感器等，传感器可以采集电子设备的环境信息和/或内部信息，并基于环境信息和/或内部信息生成信号指令。例如，传感器获取电子设备的内部温度，生成信号指令发送至处理器，处理器判断该内部温度大于预设温度值时，生成控制指令发送至控制电路，控制电路接收控制指令使变色膜变色，达到提醒用户的目的。在又一实施例中，信号输入装置包括通信模块。信号输入装置输入的信号指令可以为短信、彩信、来电、邮件等，短信、彩信、来电、邮件可以为电子设备中应用软件中的数据信息。在一具体实施例中，通信模块接收到短信、彩信、来电或邮件等，向处理器发生信号指令，处理器根据信号指令生成控制指令并发送至控制电路，控制电路根据控制指令使变色膜变色，达到提醒用户的目的。进一步的，还可以在用户阅读短信、彩信、来电或邮件等后，通信模块向处理器发生信号指令，处理器根据信号指令生成控制指令并发送至控制电路，控制电路根据控制指令使变色膜再次变色。在另一具体实施例中，通信模块接收到短信、彩信、来电或邮件等，向处理器发生信号指令，处理器根据信号指令生成控制指令并发送至控制电路，控制电路根据控制指令使变色膜发生动态变色，达到提醒用户的目的。进一步的，可以根据通信模块接收到信息的类型不同，控制变色膜片100变色的快慢，例如来电时变色膜片100快速进行颜色转换，有短信时变色膜片100缓慢进行颜色转换。在另一具体实施例中，可以在通信模块接收到短信、彩信、来电或邮件等，向处理器发送信号指令，处理器判断该短信、彩信、来电或邮件等为预设联系人时，处理器生成控制指令并发送至控制电路，控制电路根据控制指令使变色膜变色，达到提醒用户有接收到预设联系人的信息。例如有预设联系人的信息时变色膜片100快速进行颜色转换的动态变化等。
本申请提供的电子设备的外观效果可变性强，视觉效果丰富，交互性更好，极大地提升了产品的竞争力。
以上对本申请实施方式所提供的内容进行了详细介绍，本文对本申请的原理及实施方式进行了阐述与说明，以上说明只是用于帮助理解本申请的方法及其核心思想；同时，对于本领域的一般技术人员，依据本申请的思想，在具体实施方式及应用范围上均会有改变 之处，综上所述，本说明书内容不应理解为对本申请的限制。

Claims (20)

  1. 一种变色膜片，其特征在于，包括第一装饰层以及设置在所述第一装饰层表面的至少一个调光结构，所述第一装饰层具有颜色，每一所述调光结构包括调光膜和第二装饰层，且所述调光膜设置在所述第二装饰层和所述第一装饰层之间，所述第二装饰层为透光层。
  2. 如权利要求1所述的变色膜片，其特征在于，所述第一装饰层和所述第二装饰层之间具有色差。
  3. 如权利要求1所述的变色膜片，其特征在于，所述变色膜片具有多个所述调光结构，多个所述调光结构层叠设置或多个所述调光结构同层设置。
  4. 如权利要求3所述的变色膜片，其特征在于，多个所述调光结构中的多个所述第二装饰层之间具有色差。
  5. 如权利要求1所述的变色膜片，其特征在于，所述变色膜片在通电时具有第一颜色，在断电时具有第二颜色，所述第一颜色和所述第二颜色中的一个为所述调光结构的颜色，另一个为所述调光结构和所述第一装饰层叠加的颜色。
  6. 如权利要求5所述的变色膜片，其特征在于，所述第一颜色的Lab值为(L 1，a 1，b 1)，所述第二颜色的Lab值为(L 2，a 2，b 2)，其中L 2＞L 1、a 1和a 2的差值的绝对值大于10，或b 1和b 2的差值的绝对值大于10。
  7. 如权利要求1所述的变色膜片，其特征在于，所述调光膜为聚合物分散液晶膜，所述聚合物分散液晶膜包括层叠设置的第一透明导电层、聚合物分散液晶层和第二透明导电层。
  8. 如权利要求1所述的变色膜片，其特征在于，所述调光膜为聚合物网络液晶膜，所述聚合物网络液晶膜包括层叠设置的所述第一透明导电层、聚合物网络液晶层和所述第二透明导电层。
  9. 如权利要求7或8所述的变色膜片，其特征在于，所述聚合物分散液晶层或所述聚合物网络液晶层在所述第一透明导电层上的正投影完全落入所述第一透明导电层的表面且覆盖部分所述第一透明导电层，所述聚合物分散液晶层或所述聚合物网络液晶层在所述第二透明导电层上的正投影完全落入所述第二透明导电层的表面且覆盖部分所述第二透明导电层；
    所述调光膜还包括第一金属走线和/或第二金属走线，所述第一金属走线设置在所述第一透明导电层上，所述第二金属走线设置在所述第二透明导电层上。
  10. 如权利要求1所述的变色膜片，其特征在于，所述调光膜中分散有色素分子。
  11. 如权利要求1所述的变色膜片，其特征在于，所述调光膜为正向调光膜或反向调光膜。
  12. 如权利要求1所述的变色膜片，其特征在于，所述调光膜的透光率大于或等于80％，所述调光膜在通断电前后的雾度差值的绝对值大于或等于70％。
  13. 如权利要求1所述的变色膜片，其特征在于，所述第一装饰层包括第一颜色层、第一光学膜层、第一纹理层和不导电金属层中的至少一层；所述第二装饰层包括第二颜色层、第二光学膜层和第二纹理层中的至少一层。
  14. 如权利要求1所述的变色膜片，其特征在于，所述第二装饰层在所述第一装饰层上的正投影完全或部分覆盖所述第一装饰层。
  15. 如权利要求1所述的变色膜片，其特征在于，所述变色膜片还包括第一连接层，所述第一连接层设置在所述第一装饰层和所述调光结构之间，以连接所述第一装饰层和所述调光结构；
    所述变色膜片还包括第二连接层，所述第二连接层设置在所述调光膜和所述第二装饰层之间，以连接所述调光膜和所述第二装饰层。
  16. 一种壳体组件，其特征在于，包括壳体本体以及设置在所述壳体本体表面的变色膜片，所述变色膜片为根据权利要求1至15中任一项所述的变色膜片。
  17. 如权利要求16所述的壳体组件，其特征在于，所述变色膜片设置在所述壳体本体的外表面，所述第一装饰层设置在所述壳体本体和所述第二装饰层之间；或所述壳体本体为透明壳体，所述变色膜片设置在所述透明壳体的内表面，且所述第二装饰层设置在所述透明壳体和所述第一装饰层之间。
  18. 一种电子设备，其特征在于，包括壳体组件和控制电路，所述壳体组件包括壳体本体以及设置在所述壳体本体上的变色膜片，所述变色膜片为根据权利要求1至15中任一项所述的变色膜片。
  19. 如权利要求18所述的电子设备，其特征在于，所述电子设备还包括与所述控制电路连接的处理器、以及与所述处理器连接的信号输入装置，所述信号输入装置用于向所述处理器输入信号指令，所述处理器用于根据所述信号指令向所述控制电路输入控制指令，所述控制电路用于根据所述控制指令控制所述调光膜改变状态，进而使所述变色膜片变色。
  20. 如权利要求19所述的电子设备，其特征在于，所述信号输入装置包括触控屏、物理按键、传感器和通信模块中的至少一个。
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