WO2023015975A1 - 电池盖及电子设备 - Google Patents

电池盖及电子设备 Download PDF

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Publication number
WO2023015975A1
WO2023015975A1 PCT/CN2022/091042 CN2022091042W WO2023015975A1 WO 2023015975 A1 WO2023015975 A1 WO 2023015975A1 CN 2022091042 W CN2022091042 W CN 2022091042W WO 2023015975 A1 WO2023015975 A1 WO 2023015975A1
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WO
WIPO (PCT)
Prior art keywords
layer
color
electrode layer
developing
liquid crystal
Prior art date
Application number
PCT/CN2022/091042
Other languages
English (en)
French (fr)
Inventor
王晓光
霍国亮
杨柳青
臧永强
Original Assignee
荣耀终端有限公司
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Application filed by 荣耀终端有限公司 filed Critical 荣耀终端有限公司
Publication of WO2023015975A1 publication Critical patent/WO2023015975A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/271—Lids or covers for the racks or secondary casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/271—Lids or covers for the racks or secondary casings
    • H01M50/273—Lids or covers for the racks or secondary casings characterised by the material
    • H01M50/282—Lids or covers for the racks or secondary casings characterised by the material having a layered structure
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/0017—Casings, cabinets or drawers for electric apparatus with operator interface units
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/03—Covers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the embodiments of the present application relate to the technical field of terminals, and in particular, to a battery cover and an electronic device.
  • the back shell of the mobile phone is made of a transparent conductive layer, an electrochromic layer, an ion conductor layer, an ion storage layer and a glass layer, wherein the number of the transparent conductive layer and the glass layer Both are two, and an electrochromic layer, an ion conductor layer and an ion storage layer are sequentially arranged between the two transparent conductive layers, and the glass layer is located on the side of the transparent conductive layer away from the ion conductor layer.
  • the discoloration of the back cover of the mobile phone is caused by the injection and extraction of ions and electrons in the material.
  • the ions in the ion storage layer are drawn out, pass through the ion conductor layer, and enter the electrochromic layer to realize the change of the color of the electrochromic layer, so that the system changes from the original initial transparent state to the electrochromic layer. for the shaded state.
  • the transparent conductive layer is applied with a reverse DC voltage, the ions in the electrochromic layer are drawn out, pass through the ion conductor layer, and return to the ion storage layer, so that the system returns from the colored state to the original initial transparent state.
  • the present application provides a battery cover and an electronic device, which can reduce the manufacturing cost of the battery cover and simplify the manufacturing process of the battery cover.
  • the embodiment of the present application provides a battery cover, the battery cover at least includes: a first base material layer and a material layer disposed on the first base material layer; the material layer at least includes: a first display A color layer and at least one intermediate layer, the at least one intermediate layer is located between the first color developing layer and the first substrate layer; the at least one intermediate layer includes: a first intermediate layer;
  • the first intermediate layer includes a stacked arrangement: a first electrode layer, a first polymer dispersed liquid crystal layer, a second electrode layer and a second color-developing layer, wherein the color displayed by the second color-developing layer is the same as that displayed by the first color-developing layer.
  • the colors displayed by a color-developing layer are different; one of the first electrode layer and the second electrode layer is located between the first polymer-dispersed liquid crystal layer and the first color-developing layer, The other of the first electrode layer and the second electrode layer is located between the first polymer dispersed liquid crystal layer and the second color development layer; and the second color development layer is also located in the Between the other of the first electrode layer and the second electrode layer and the first substrate layer.
  • a material layer is provided on the first base material layer, and the material layer includes a first color-developing layer and at least one intermediate layer between the first color-developing layer and the first base material layer , the first intermediate layer in at least one intermediate layer includes a first electrode layer, a first polymer dispersed liquid crystal layer, a second electrode layer, and a second color-developing layer that are stacked, and the color displayed by the second color-developing layer is the same as that displayed by the first color-developing layer.
  • the colors displayed by a color-developing layer are different, one of the first electrode layer and the second electrode layer is located between the first polymer dispersed liquid crystal layer and the first color-developing layer, the first electrode layer and the second electrode layer The other of the layers is located between the first polymer dispersed liquid crystal layer and the second color-developing layer, and the second color-developing layer is also located between the first electrode layer and the second electrode layer and the first substrate In this way, when the first electrode layer and the second electrode layer are in a power-off state, the first polymer-dispersed liquid crystal layer appears milky white and opaque, and the battery cover only displays the color of the first color-developing layer.
  • the first polymer-dispersed liquid crystal layer is in a transparent state, and because the color displayed by the second color-developing layer is different from the color displayed by the first color-developing layer, the battery The cover can display the superimposed effect of the two colors of the first color-developing layer and the second color-developing layer, thereby realizing the effect of color change.
  • the embodiment of the present application can reduce the manufacturing cost of the battery cover and simplify the manufacturing process of the battery cover.
  • it further includes: at least one voltage control circuit; the at least one voltage control circuit includes: a first voltage control circuit; the first electrode layer in the first intermediate layer and the The second electrode layers are all electrically connected to the first voltage control circuit.
  • the first voltage control circuit in at least one voltage control circuit is electrically connected to the first electrode layer and the second electrode layer, which is to use the characteristics of polymer dispersed liquid crystals, and the first voltage control circuit is connected to the first electrode layer and the second electrode layer.
  • a voltage is applied to the first polymer dispersed liquid crystal layer, so that in the process of gradually increasing the voltage, the first polymer dispersed liquid crystal layer gradually changes from a high-haze state to a low-haze transparent state, and in the process of gradually decreasing the voltage
  • the first polymer-dispersed liquid crystal layer gradually changes from a transparent state with low haze to a high-haze state, that is, the first voltage control circuit is used to adjust the haze and light transmittance of the first polymer-dispersed liquid crystal layer.
  • the light transmittance of the first polymer dispersed liquid crystal layer is lower than 20%; the first When the electrode layer and the second electrode layer are in the energized state, the light transmittance of the first polymer dispersed liquid crystal layer is higher than 70%.
  • the light transmittance of the first polymer-dispersed liquid crystal layer is lower than 20%, which can ensure that the first polymer-dispersed liquid crystal layer presents a white frosted appearance, and the light transmittance of the first polymer-dispersed liquid crystal layer is higher than 70%, which can ensure that The first polymer-dispersed liquid crystal layer is in a transparent state. In this way, when the first electrode layer and the second electrode layer are in a power-off state, the first polymer-dispersed liquid crystal layer appears milky white and opaque, and the battery cover only displays the first color-developing layer. s color.
  • the first polymer dispersed liquid crystal layer When the first electrode layer and the second electrode layer are in the electrified state, the first polymer dispersed liquid crystal layer is in a transparent state, and the battery cover can display the superimposed effect of the two colors of the first color-developing layer and the second color-developing layer, so it can To achieve the effect of color change.
  • the at least one intermediate layer further includes: a second intermediate layer; the second intermediate layer is located between the first intermediate layer and the first substrate layer, or, the The second intermediate layer is located between the first intermediate layer and the first color-developing layer;
  • the second intermediate layer includes a stacked arrangement: a third electrode layer, a second polymer dispersed liquid crystal layer, a fourth electrode layer, and a third color-developing layer, wherein the color displayed by the third color-developing layer is the same as that displayed by the first color-developing layer.
  • the colors displayed by the first color-developing layer and the colors displayed by the second color-developed layer are different; the third electrode layer and the fourth electrode layer are respectively located on the two sides of the second polymer dispersed liquid crystal layer.
  • the third color-developing layer is located on a side of any one of the third electrode layer and the fourth electrode layer that is away from the second polymer-dispersed liquid crystal layer.
  • the first polymer dispersed liquid crystal layer and the second polymer dispersed liquid crystal layer appear milky white and opaque, and the battery The cap only shows the color of the first chromogenic layer.
  • the battery cover can display the superimposed effect of the two colors of the first color-developing layer and the second color-developing layer.
  • the battery cover can display the superimposed effect of the two colors of the first color-developing layer and the third color-developing layer.
  • the first polymer dispersed liquid crystal layer and the second polymer dispersed liquid crystal layer are in a transparent state, due to the third color development
  • the color displayed by the layer is different from the color displayed by the first color-developed layer and the color displayed by the second color-developed layer, and the battery cover can display the first color-developed layer, the second color-developed layer and the third color-developed layer
  • the effect of the superposition of three colors so it can achieve the effect of various color changes.
  • the at least one voltage control circuit further includes: a second voltage control circuit; the third electrode layer and the fourth electrode layer in the second intermediate layer are both connected to the The second voltage control circuit is electrically connected.
  • the second voltage control circuit in at least one voltage control circuit is electrically connected to the third electrode layer and the fourth electrode layer, which is to use the characteristics of polymer dispersed liquid crystals, and the second voltage control circuit is connected to the third electrode layer and the fourth electrode layer through the third electrode layer and the fourth electrode layer.
  • the voltage is applied to the second polymer dispersed liquid crystal layer, so that in the process of gradually increasing the voltage, the second polymer dispersed liquid crystal layer gradually changes from a high haze state to a low haze transparent state, and in the process of gradually reducing the voltage
  • the second polymer-dispersed liquid crystal layer gradually changes from a low-haze transparent state to a high-haze state, that is, the second voltage control circuit is used to adjust the haze and light transmittance of the second polymer-dispersed liquid crystal layer.
  • the light transmittance of the second polymer dispersed liquid crystal layer is lower than 20%;
  • the light transmittance of the second polymer dispersed liquid crystal layer is higher than 70%.
  • the light transmittance of the second polymer-dispersed liquid crystal layer is lower than 20%, which can ensure that the second polymer-dispersed liquid crystal layer presents a white frosted appearance, and the light transmittance of the second polymer-dispersed liquid crystal layer is higher than 70%, which can ensure that The second polymer dispersed liquid crystal layer is in a transparent state.
  • the first electrode layer is located between the first polymer-dispersed liquid crystal layer and the first color-developing layer
  • the second electrode layer is located between the first polymer-dispersed liquid crystal layer and the first color-developing layer. between the liquid crystal layer and the second color-developing layer.
  • the second intermediate layer when the second intermediate layer is located between the first intermediate layer and the first substrate layer, one of the third electrode layer and the fourth electrode layer One is located between the second polymer-dispersed liquid crystal layer and the second color-developing layer, and the other of the third electrode layer and the fourth electrode layer is located between the second polymer-dispersed liquid crystal layer. layer and the third color-developing layer; and the third color-developing layer is also located between the other of the third electrode layer and the fourth electrode layer and the first substrate layer ;
  • one of the third electrode layer and the fourth electrode layer is located between the second intermediate layer and the first color-developing layer.
  • the other of the third electrode layer and the fourth electrode layer is located between the second polymer-dispersed liquid crystal layer and the third color-developing layer. between the color layers; and the third color-developing layer is also located between the other of the third electrode layer and the fourth electrode layer and the first electrode layer.
  • the thickness of the first polymer-dispersed liquid crystal layer is greater than or equal to 1um, the thickness of the first polymer-dispersed liquid crystal layer is less than or equal to 4um; the thickness of the second polymer-dispersed liquid crystal layer is greater than or equal to 1um, and the thickness of the second polymer dispersed liquid crystal layer is less than or equal to 4um.
  • the first color-developing layer, the second color-developing layer and the third color-developing layer are organic light-emitting layers.
  • At least one of the first color-developing layer, the second color-developing layer and the third color-developing layer is provided with a texture structure.
  • the texture structure can make the appearance of the battery cover have a texture effect that moves with the light, or it can make the appearance of the battery cover have a three-dimensional relief pattern, which enhances the three-dimensional effect of the battery cover and brings a special visual experience to the user .
  • the first electrode layer, the second electrode layer, the third electrode layer and the fourth electrode layer are transparent conductive layers.
  • the first electrode layer and the second electrode layer and the third electrode layer and the fourth electrode layer are transparent conductive layers, it is possible to avoid dispersion of the polymer by the first electrode layer and the second electrode layer and the third electrode layer and the fourth electrode layer
  • the haze of the liquid crystal layer interferes with the state of light transmittance change.
  • the material used for the first electrode layer, the second electrode layer, the third electrode layer and the fourth electrode layer is indium tin oxide.
  • the thickness of the first electrode layer is greater than or equal to 5 nm, and the thickness of the first electrode layer is less than or equal to 20 nm; the thickness of the second electrode layer is greater than or equal to 5 nm, and the thickness of the second electrode layer is equal to or greater than 5 nm.
  • the thickness of the layer is less than or equal to 20nm; the thickness of the third electrode layer is greater than or equal to 5nm, the thickness of the third electrode layer is less than or equal to 20nm; the thickness of the fourth electrode layer is greater than or equal to 5nm, and the thickness of the fourth electrode layer The thickness is less than or equal to 20nm.
  • the material layer further includes: a protective film layer; the protective film layer is located on a side of the first color-developing layer away from the first substrate layer.
  • the protective film layer can protect the material layer from external conditions or factors.
  • the material used for the protective film layer is polyethylene terephthalate.
  • the thickness of the protective film layer is greater than or equal to 25um, and the thickness of the protective film layer is less than or equal to 50um.
  • the second base material layer further includes: a second base material layer; the protective film layer is located between the second base material layer and the first color-developing layer.
  • the second base material layer can also play a protective role to prevent external conditions or factors from affecting the material layer, such as preventing damage to the material layer caused by external scratches or falls.
  • the second substrate layer and the protective film layer are connected by optical glue.
  • vacuum coating is located between the at least one intermediate layer and the first substrate layer.
  • Vacuum coating can play a role in increasing the color texture of the appearance.
  • the vacuum plating layer is a non-conductive layer.
  • the material used for the vacuum coating is indium tin or silicon titania.
  • the embodiment of the present application provides an electronic device, the electronic device at least includes: a display screen, a middle frame, and any one of the above-mentioned battery covers, the display screen and the battery cover are respectively located in the middle frame on both sides.
  • the electronic device at least includes a battery cover.
  • the battery cover is provided with a material layer on the first base material layer, and the material layer includes the first color-developing layer and the first color-developing layer and the second color-developing layer.
  • At least one intermediate layer between one substrate layer, the first intermediate layer in the at least one intermediate layer includes a stacked first electrode layer, a first polymer dispersed liquid crystal layer, a second electrode layer and a second color development layer,
  • the color displayed by the second color-developing layer is different from the color displayed by the first color-developing layer
  • one of the first electrode layer and the second electrode layer is located between the first polymer dispersed liquid crystal layer and the first color-developing layer
  • the other is located between the first polymer dispersed liquid crystal layer and the second color-developing layer
  • the second color-developing layer is also located between the first electrode layer and the second electrode
  • the first polymer dispersed liquid crystal layer presents milky white and opaque
  • the battery cover only displays the second The color of a chromogenic layer.
  • the first polymer-dispersed liquid crystal layer is in a transparent state, and because the color displayed by the second color-developing layer is different from the color displayed by the first color-developing layer, the battery The cover can display the superimposed effect of the two colors of the first color-developing layer and the second color-developing layer, thereby realizing the effect of color change.
  • the embodiment of the present application can reduce the manufacturing cost of the battery cover and simplify the manufacturing process of the battery cover.
  • FIG. 1 is a schematic diagram of the overall structure of an electronic device provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a disassembled structure of an electronic device provided by an embodiment of the present application
  • FIG. 3 is a schematic diagram of a disassembled structure of an electronic device provided by an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a battery cover in an electronic device provided by an embodiment of the present application.
  • FIG. 5 is a schematic cross-sectional structure diagram of an electronic device provided by an embodiment of the present application along the A-A direction in FIG. 4;
  • FIG. 6 is another schematic cross-sectional structure diagram of the electronic device provided by an embodiment of the present application along the A-A direction in FIG. 4;
  • FIG. 7 is another schematic cross-sectional structure diagram of the electronic device provided by an embodiment of the present application along the A-A direction in FIG. 4;
  • Fig. 8 is another schematic cross-sectional structure diagram of the electronic device provided by an embodiment of the present application along the A-A direction in Fig. 4;
  • FIG. 9 is another schematic cross-sectional structure diagram of the electronic device provided by an embodiment of the present application along the A-A direction in FIG. 4 .
  • 100-battery cover 10-material layer; 101-first color-developing layer;
  • An embodiment of the present application provides an electronic device, which may include but not limited to mobile phones, tablet computers, notebook computers, ultra-mobile personal computers (ultra-mobile personal computer, UMPC), handheld computers, walkie-talkies, netbooks, point of sale (Point of sales, POS) machines, personal digital assistants (PDA), wearable devices, virtual reality devices, wireless U disks, Bluetooth audio/headphones, or vehicle pre-installation, driving recorders, security equipment, etc.
  • Mobile or fixed terminal may include but not limited to mobile phones, tablet computers, notebook computers, ultra-mobile personal computers (ultra-mobile personal computer, UMPC), handheld computers, walkie-talkies, netbooks, point of sale (Point of sales, POS) machines, personal digital assistants (PDA), wearable devices, virtual reality devices, wireless U disks, Bluetooth audio/headphones, or vehicle pre-installation, driving recorders, security equipment, etc.
  • Mobile or fixed terminal may include but not limited to mobile phones, tablet computers, notebook computers, ultra-mobile personal computers (ultra-mobile personal computer,
  • the mobile phone 200 is taken as an example of the above-mentioned electronic device for illustration.
  • the mobile phone 200 provided in the embodiment of the present application may be a mobile phone with a curved screen or a mobile phone with a flat screen.
  • the mobile phone with a flat screen is used as the Example to illustrate.
  • Fig. 1 and Fig. 2 respectively show the overall structure and split structure of the mobile phone 200
  • the display screen 21 of the mobile phone 200 provided in the embodiment of the present application may be a water drop screen, a notch screen, a full screen or a hole-digging screen (refer to Fig. 1 shown), for example, the display screen 21 is provided with an opening 211, and the following description takes a hole-digging screen as an example for illustration.
  • the mobile phone 200 may include: a display screen 21 , a middle frame 22 and a battery cover 100 , and the display screen 21 and the battery cover 100 are respectively located on two sides of the middle frame 22 .
  • the mobile phone 200 can also include a battery 24 located between the middle frame 22 and the battery cover 100, wherein the battery 24 can be arranged on the side of the middle frame 22 facing the battery cover 100 (as shown in FIG. 2 ), or the battery 24 can be It is arranged on the side of the middle frame 22 facing the display screen 21 , for example, the side of the middle frame 22 facing the battery cover 100 may have a battery compartment (not shown in the figure), and the battery 24 is installed in the battery compartment.
  • the mobile phone 200 can also include a circuit board 23, wherein the circuit board 23 can be arranged on the middle frame 22, for example, the circuit board 23 can be arranged on the side of the middle frame 22 facing the battery cover 100 (as shown in FIG. 2), or the circuit board 23 can be arranged on the side of the middle frame 22 facing the display screen 21, and the display screen 21 and the battery cover 100 are respectively located on both sides of the middle frame 22.
  • battery 24 can be connected with charge management module and circuit board 23 through power management module, and power management module receives the input of battery 24 and/or charge management module, and provides processor, internal memory, external memory, display screen 21, camera Power supply for modules and communication modules.
  • the power management module can also be used to monitor parameters such as the capacity of the battery 24 , the number of cycles of the battery 24 , and the state of health of the battery 24 (leakage, impedance).
  • the power management module can also be set in the processor of the circuit board 23 .
  • the power management module and the charging management module can also be set in the same device.
  • the display screen 21 can be an organic light-emitting diode (Organic Light-Emitting Diode, OLED) display, or a liquid crystal display (Liquid Crystal Display, LCD).
  • OLED Organic Light-Emitting Diode
  • LCD liquid crystal display
  • the display screen 21 may be an OLED display screen. It should be understood that the display screen 21 may include a display and a touch device, the display is used to output display content to the user, and the touch device is used to receive a touch event input by the user on the display screen 21 .
  • the middle frame 22 may include a metal middle plate 222 and a frame 221 , and the frame 221 is arranged around the outer circumference of the metal middle plate 222 .
  • the frame 221 may include a top frame, a bottom frame, a left frame and a right frame, and the top frame, the bottom frame, the left frame and the right frame enclose a frame of a square ring structure.
  • the material of the metal middle plate 222 includes but is not limited to aluminum plate, aluminum alloy, stainless steel, steel-aluminum composite die-casting plate, titanium alloy or magnesium alloy and the like.
  • the frame 221 can be a metal frame, a ceramic frame, or a glass frame.
  • the material of the metal frame includes but is not limited to aluminum alloy, stainless steel, steel-aluminum composite die-casting plate, or titanium alloy.
  • the metal middle plate 222 and the frame 221 can be clamped, welded, glued or integrally formed, or the metal middle plate 222 and the frame 221 can be fixedly connected by injection molding.
  • the top frame and the bottom frame are set relative to each other, the left frame is set opposite to the right frame, the top frame is respectively connected with one end of the left frame and one end of the right frame with rounded corners, and the bottom frame is respectively connected with the other end of the left frame and the right
  • the other ends of the side frames are connected with rounded corners to jointly form a rounded rectangular area.
  • the ground plane of the back shell is set in the rounded rectangular area and is respectively connected with the top frame, the bottom frame, the left frame and the right frame. It can be understood that the ground plane of the rear shell can be the battery cover 100 of the mobile phone 200 .
  • the battery cover 100 may be a metal back case, a glass back case, a plastic back case, or a ceramic back case.
  • the material of the battery cover 100 is not limited, and may be Not limited to the above examples.
  • the battery cover 100 of the mobile phone 200 can be connected with the frame 221 to form a one-piece (Unibody) back shell.
  • the mobile phone 200 can include: a display screen 21, a metal middle plate 222 and a back shell.
  • the back shell can be formed by the frame 221 and the battery cover 100 in one piece (Unibody), so that the circuit board 23 and the battery 24 are located in the space enclosed by the metal middle plate 222 and the back shell.
  • the mobile phone 200 may further include: a camera component, which may be arranged on the middle frame 22 , and the camera of the camera component faces the display screen 21 or the battery cover 100 .
  • the camera assembly can be a front camera assembly 25a, or a rear camera assembly 25b, or the number of camera assemblies can be two, wherein one camera assembly is a front camera assembly 25a, and the other camera assembly is a rear camera assembly 25b (see Figure 3).
  • the rear camera assembly 25b can be disposed on the side of the metal middle plate 222 facing the battery cover 100 , and the display screen 21 has an opening 211 , and the lens of the rear camera assembly 25b corresponds to the opening 211 .
  • the battery cover 100 can be provided with a mounting hole (not shown) that can be installed in a part of the rear camera assembly 25b.
  • the rear camera assembly 25b can also be installed on the side of the battery cover 100 facing the metal middle plate 222. .
  • the front camera assembly 25a can be arranged on the side of the metal middle plate 222 facing the display screen 21, or the front camera assembly 25a can be arranged on the side of the metal middle plate 222 facing the battery cover 100, or the front camera assembly 25a can also be Located on the side of the battery cover 100 facing the display screen 21 , the metal middle plate 222 is provided with an opening for exposing the lens end of the front camera assembly 25 a.
  • the installation positions of the front camera assembly 25a and the rear camera assembly 25b may include but not limited to the above description.
  • the number of the front camera assembly 25a and the rear camera assembly 25b set in the notebook computer 300 may be 1 or N, where N is a positive integer greater than or equal to 1.
  • the structure shown in the embodiment of the present application does not constitute a specific limitation on the mobile phone 200 .
  • the mobile phone 200 may include more or fewer components than shown in the figure, or combine certain components, or separate certain components, or arrange different components.
  • the illustrated components can be realized in hardware, software or a combination of software and hardware.
  • the embodiment of the present application provides a battery cover 100
  • the battery cover 100 may at least include: a first base material layer 20 and a material layer 10 disposed on the first base material layer 20, wherein , the material layer 10 may at least include: a first color-developing layer 101 and at least one intermediate layer (such as a first intermediate layer 102 or a second intermediate layer 103), and at least one intermediate layer may be located between the first color-developing layer 101 and the second intermediate layer Between one substrate layer 20 .
  • At least one intermediate layer may include: a first intermediate layer 102, wherein the first intermediate layer 102 may include: a first electrode layer 1021, a second electrode layer A polymer dispersed liquid crystal layer 1022 , a second electrode layer 1023 and a second color-developing layer 1024 , wherein the color displayed by the second color-developed layer 1024 is different from the color displayed by the first color-developed layer 101 .
  • first electrode layer 1021 and the second electrode layer 1023 are located between the first polymer dispersed liquid crystal layer 1022 and the first color-developing layer 101, the first electrode layer 1021 and the second electrode layer 1023 The other is located between the first polymer dispersed liquid crystal layer 1022 and the second color-developing layer 1024, and the second color-developing layer 1024 is also located between the first electrode layer 1021 and the second electrode layer 1023 and the first Between the substrate layers 20.
  • first electrode layer 1021 and the second electrode layer 1023 include but not limited to the following two possible implementations:
  • a possible implementation is as follows: as shown in FIG. 4 , the first electrode layer 1021 is located between the first polymer dispersed liquid crystal layer 1022 and the first color development layer 101, and the second electrode layer 1023 is located between the first polymer dispersed liquid crystal layer 1023. layer 1022 and the second color-developing layer 1024 , and the second color-developing layer 1024 is located between the second electrode layer 1023 and the first substrate layer 20 .
  • the second electrode layer 1023 is located between the first polymer dispersed liquid crystal layer 1022 and the first color development layer 101, and the first electrode layer 1021 is located between the first polymer
  • the dispersed liquid crystal layer 1022 and the second color-developing layer 1024 are located between the first electrode layer 1021 and the first substrate layer 20 .
  • the first polymer dispersed liquid crystal layer 1022 is milky white and opaque, and the battery cover 100 only displays the color of the first color-developing layer 101 .
  • the first polymer dispersed liquid crystal layer 1022 presents a transparent state, and because the color displayed by the second color-developing layer 1024 is different from that displayed by the first color-developing layer 101 The colors are different, and the battery cover 100 can display the superimposed effect of the two colors of the first color-developing layer 101 and the second color-developing layer 1024 , thus realizing the effect of color change.
  • the embodiment of the present application can reduce the manufacturing cost of the battery cover 100 and simplify the manufacturing process of the battery cover 100 .
  • the battery cover 100 provided in the embodiment of the present application may further include: at least one voltage control circuit (not shown in the figure), wherein the at least one voltage control circuit may include: a first voltage control circuit , both the first electrode layer 1021 and the second electrode layer 1023 in the first intermediate layer 102 are electrically connected to the first voltage control circuit.
  • the first voltage control circuit in the at least one voltage control circuit is electrically connected to the first electrode layer 1021 and the second electrode layer 1023, which is to use the characteristics of polymer dispersed liquid crystals, and the first voltage control circuit passes the first electrode layer 1021 and the second electrode layer 1021.
  • the electrode layer 1023 applies a voltage to the first polymer-dispersed liquid crystal layer 1022. In this way, in the process of gradually increasing the voltage, the first polymer-dispersed liquid crystal layer 1022 gradually changes from a high-haze state to a low-haze transparent state.
  • the first polymer dispersed liquid crystal layer 1022 gradually changes from a transparent state with low haze to a high haze state, that is, the first voltage control circuit is used to adjust the fog of the first polymer dispersed liquid crystal layer 1022 degree and transparency.
  • the light transmittance of the first polymer dispersed liquid crystal layer 1022 when the first electrode layer 1021 and the second electrode layer 1023 are in the power-off state, the light transmittance of the first polymer dispersed liquid crystal layer 1022 may be lower than 20%, and the first electrode layer 1022 may be lower than 20%.
  • the light transmittance of the first polymer dispersed liquid crystal layer 1022 can be higher than 70%.
  • the light transmittance of the first polymer-dispersed liquid crystal layer 1022 is lower than 20%, that is, it can ensure that the first polymer-dispersed liquid crystal layer 1022 presents a white frosted appearance, and the light transmittance of the first polymer-dispersed liquid crystal layer 1022 is higher than 70%. That is, the first polymer-dispersed liquid crystal layer 1022 can be guaranteed to be in a transparent state. In this way, when the first electrode layer 1021 and the second electrode layer 1023 are in a power-off state, the first polymer-dispersed liquid crystal layer 1022 appears milky white and opaque, and the battery cover 100 only displays the color of the first color-developing layer 101.
  • the first polymer dispersed liquid crystal layer 1022 is in a transparent state, and the battery cover 100 can display the superposition of two colors of the first color-developing layer 101 and the second color-developing layer 1024 The final effect, so the effect of color change can be achieved.
  • At least one intermediate layer may further include: a second intermediate layer 103, the second intermediate layer 103 is located between the first intermediate layer 102 and the first substrate layer 20, or, The second intermediate layer 103 is located between the first intermediate layer 102 and the first color-developing layer 101 .
  • the second intermediate layer 103 may include a stacked arrangement: a third electrode layer 1031, a second polymer dispersed liquid crystal layer 1032, a fourth electrode layer 1033, and a third color-developing layer 1034, wherein The color displayed by the third color-developing layer 1034 is different from the color displayed by the first color-developing layer 101 and the color displayed by the second color-developing layer 1024 .
  • the third electrode layer 1031 and the fourth electrode layer 1033 can be respectively located on both sides of the second polymer dispersed liquid crystal layer 1032, and the third color-developing layer 1034 is located on any one of the third electrode layer 1031 and the fourth electrode layer 1033. Or on the side away from the second polymer dispersed liquid crystal layer 1032 .
  • the third color-developing layer 1034 may be located on the side of the third electrode layer 1031 away from the second polymer-dispersed liquid crystal layer 1032, or the third color-developing layer 1034 may be located on the side of the fourth electrode layer 1033 away from the second polymer-dispersed liquid crystal layer 1032. Disperse the liquid crystal layer 1032 on one side.
  • the first polymer dispersed liquid crystal layer 1022 and the second polymer dispersed liquid crystal layer 1032 present Milky white is opaque, and the battery cover 100 only shows the color of the first color-developing layer 101 .
  • the first polymer dispersed liquid crystal layer 1022 is in a transparent state
  • the second polymer dispersed liquid crystal layer is in a transparent state.
  • the layer 1032 is milky white and opaque, and because the color displayed by the second color-developing layer 1024 is different from the color displayed by the first color-developing layer 101, the battery cover 100 can display the color of the first color-developing layer 101 and the second color-developing layer 101.
  • Layer 1024 is the effect of superimposing two colors.
  • the first polymer dispersed liquid crystal layer 1022 presents milky white opaque
  • the second polymer The dispersed liquid crystal layer 1032 is in a transparent state, and because the color displayed by the third color-developing layer 1034 is different from the color displayed by the first color-developing layer 101, the battery cover 100 can display the color of the first color-developing layer 101 and the third color-developing layer 101.
  • Layer 1034 is the effect of superimposing two colors.
  • both the first polymer dispersed liquid crystal layer 1022 and the second polymer dispersed liquid crystal layer 1032 are in a transparent state Since the color displayed by the third color-developing layer 1034 is different from the color displayed by the first color-developing layer 101 and the color displayed by the second color-developing layer 1024, the battery cover 100 can display the first color-developing layer 101, The effect of superimposing the three colors of the second color-developing layer 1024 and the third color-developing layer 1034 can realize multiple color changing effects, and solve the problem of single color change when the battery cover of the mobile phone changes color in the prior art.
  • At least one voltage control circuit may further include: a second voltage control circuit (not shown in the figure), wherein the third electrode layer 1031 and the fourth electrode layer in the second intermediate layer 103 1033 are all electrically connected to the second voltage control circuit.
  • the second voltage control circuit in at least one voltage control circuit is electrically connected to the third electrode layer 1031 and the fourth electrode layer 1033, which is to use the characteristics of polymer dispersed liquid crystals, and the second voltage control circuit passes through the third electrode layer 1031 and the fourth electrode layer 1031.
  • the electrode layer 1033 applies a voltage to the second polymer-dispersed liquid crystal layer 1032. In this way, in the process of gradually increasing the voltage, the second polymer-dispersed liquid crystal layer 1032 gradually changes from a state of high haze to a transparent state of low haze.
  • the second polymer dispersed liquid crystal layer 1032 gradually changes from a transparent state with low haze to a high haze state, that is, the second voltage control circuit is used to adjust the haze of the second polymer dispersed liquid crystal layer 1032 degree and transparency.
  • the light transmittance of the second polymer dispersed liquid crystal layer 1032 may be lower than 20%.
  • the light transmittance of the second polymer dispersed liquid crystal layer 1032 may be higher than 70%.
  • the light transmittance of the second polymer-dispersed liquid crystal layer 1032 is lower than 20%, that is, it can ensure that the second polymer-dispersed liquid crystal layer 1032 presents a white frosted appearance, and the light transmittance of the second polymer-dispersed liquid crystal layer 1032 is higher than 70%. That is, it can ensure that the second polymer dispersed liquid crystal layer 1032 is in a transparent state.
  • the specific arrangement positions of the first electrode layer 1021 and the second electrode layer 1023 include but are not limited to the following two possible implementations:
  • a possible implementation is: as shown in FIG. 6, the first electrode layer 1021 is located between the first polymer dispersed liquid crystal layer 1022 and the first color development layer 101, and the second electrode layer 1023 is located between the first polymer dispersed liquid crystal layer 1023. between the layer 1022 and the second color-developing layer 1024 .
  • the second electrode layer 1023 is located between the first polymer dispersed liquid crystal layer 1022 and the first color development layer 101
  • the first electrode layer 1021 is located between the first polymer Dispersed between the liquid crystal layer 1022 and the second color-developing layer 1024 .
  • the second intermediate layer 103 when the second intermediate layer 103 is located between the first intermediate layer 102 and the first substrate layer 20, one of the third electrode layer 1031 and the fourth electrode layer 1033 is located between the second polymer dispersion Between the liquid crystal layer 1032 and the second color developing layer 1024, the other of the third electrode layer 1031 and the fourth electrode layer 1033 is located between the second polymer dispersed liquid crystal layer 1032 and the third color developing layer 1034, and the second The three color-developing layers 1034 are also located between the other one of the third electrode layer 1031 and the fourth electrode layer 1033 and the first substrate layer 20 .
  • the third electrode layer 1031 may be located between the second polymer dispersed liquid crystal layer 1032 and the second color-developing layer 1024 In between, the fourth electrode layer 1033 may be located between the second polymer dispersed liquid crystal layer 1032 and the third color development layer 1034 , and the third color development layer 1034 is located between the fourth electrode layer 1033 and the first substrate layer 20 .
  • the fourth electrode layer 1033 may be located between the second polymer dispersed liquid crystal layer 1032 and the second color-developing layer 1024
  • the third electrode layer 1031 may be located between the second polymer dispersed liquid crystal layer 1032 and the third color-developing layer 1034
  • the third color-developing layer 1034 is located between the third electrode layer 1031 and the first substrate layer 20 .
  • the second intermediate layer 103 is located between the first intermediate layer 102 and the first color-developing layer 101
  • one of the third electrode layer 1031 and the fourth electrode layer 1033 is located between the second polymer dispersion Between the liquid crystal layer 1032 and the first color developing layer 101
  • the other of the third electrode layer 1031 and the fourth electrode layer 1033 is located between the second polymer dispersed liquid crystal layer 1032 and the third color developing layer 1034
  • the second The three color-developing layers 1034 are also located between the other one of the third electrode layer 1031 and the fourth electrode layer 1033 and the first electrode layer 1021 .
  • the third electrode layer 1031 may be located between the second polymer-dispersed liquid crystal layer 1032 and the first color-developing layer 101
  • the fourth electrode layer 1033 may be located between the second polymer dispersed liquid crystal layer 1032 and the third color-developing layer 1034
  • the third color-developing layer 1034 is also located between the fourth electrode layer 1033 and the first electrode layer 1021 .
  • the fourth electrode layer 1033 may be located between the second polymer-dispersed liquid crystal layer 1032 and the first color-developing layer 101
  • the third electrode layer 1031 may be located between the second polymer dispersed liquid crystal layer 1032 and the third color development layer 1034
  • the third color development layer 1034 is also located between the third electrode layer 1031 and the first electrode layer 1021 .
  • the material used for the first polymer dispersed liquid crystal layer 1022 and the second polymer dispersed liquid crystal layer 1032 is a polymer dispersed liquid crystal ((polymer dispersed liquid crystal, PDLC), specifically, the polymer dispersed liquid crystal is a liquid crystal Small droplets on the order of microns are dispersed in the organic solid polymer matrix. Since the optical axes of the small droplets composed of liquid crystal molecules are in free orientation, their refractive index does not match that of the matrix. When light passes through the matrix, it is The droplets strongly scatter and become opaque milky white or translucent. Applying an electric field can adjust the optical axis orientation of the liquid crystal droplets. When the refractive index of the two matches, they will appear transparent. Remove the electric field and the liquid crystal droplets will return to their original state. The state of astigmatism is thus displayed.
  • PDLC polymer dispersed liquid crystal
  • the nematic liquid crystal is uniformly dispersed in the solid organic polymer matrix in the form of micron-sized droplets. Without voltage, the optical axis of each small droplet is in a preferred orientation, and all particles The optical axis is in a disordered orientation state. Since liquid crystal is a material with strong optical and dielectric anisotropy, its effective refractive index does not match the refractive index of the matrix (the difference is large), and the incident light can be strongly scattered to appear opaque or translucent milky white.
  • the direction of the optical axis of the nematic liquid crystal molecules is uniform along the direction of the electric field, and the ordinary refractive index of the liquid crystal particles matches that of the matrix to a certain extent, and the light can pass through the matrix and become transparent or translucent.
  • the external electric field is removed, the liquid crystal particles return to the original scattering state under the action of the elastic energy of the matrix. Therefore, the polymer dispersed liquid crystal film has the characteristic of electrically controlled optical switching under the action of the electric field.
  • the thickness of the first polymer-dispersed liquid crystal layer 1022 may be greater than or equal to 1 um, and the thickness of the first polymer-dispersed liquid crystal layer 1022 may be less than or equal to 4 um.
  • the thickness of the first polymer-dispersed liquid crystal layer 1022 may be 1 um, 3 um or 4 um, etc., which is not limited in this embodiment of the present application.
  • the thickness of the second polymer dispersed liquid crystal layer 1032 may be greater than or equal to 1 um, and the thickness of the second polymer dispersed liquid crystal layer 1032 may be less than or equal to 4 um.
  • the thickness of the second polymer-dispersed liquid crystal layer 1032 may be 1 um, 3 um or 4 um, etc., which is not limited in this embodiment of the present application.
  • the first color-developing layer 101 , the second color-developing layer 1024 and the third color-developing layer 1034 may be organic light-emitting layers.
  • the first color-developing layer 101 , the second color-developing layer 1024 and the third color-developing layer 1034 may be RGB organic light-emitting layers.
  • first color-developing layer 101, the second color-developing layer 1024, and the third color-developing layer 1034 can be a vacuum coating layer, a screen printing ink layer, an ultraviolet (Ultraviolet, UV) transfer glue layer or a UV coating layer, etc.
  • UV Ultraviolet
  • the embodiment of the application does not limit this, nor is it limited to the above examples.
  • At least one of the first color-developing layer 101 , the second color-developing layer 1024 and the third color-developing layer 1034 may be provided with a textured structure.
  • the first color-developing layer 101 is provided with a texture structure
  • the second color-developing layer 1024 is provided with a texture structure
  • the first color-developing layer 101 and the second color-developing layer 1024 are provided with a texture structure, which may be that the first color-developing layer 101 and the third color-developing layer 1034 are provided with a texture structure, which may be the second color-developing layer 1024 and the second color-developing layer 1024.
  • a texture structure is provided on the three color-developing layers 1034, or a texture structure is provided on the first color-developing layer 101, the second color-developing layer 1024, and the third color-developing layer 1034, which is not provided in the embodiment of the present application. limited.
  • the texture structure can be a plane texture, a three-dimensional pattern relief texture, or a combination of a plane texture and a three-dimensional pattern relief texture.
  • the planar texture structure can make the exterior surface of the battery cover 100 have a texture effect (such as a Kevlar texture effect) that moves with the light and is partly visible (such as a Kevlar texture effect), and the three-dimensional pattern relief texture structure can make the appearance of the battery cover 100 have a three-dimensional relief pattern.
  • the three-dimensional effect of the battery cover 100 is enhanced to bring a special visual experience to the user.
  • the first electrode layer 1021 , the second electrode layer 1023 , the third electrode layer 1031 and the fourth electrode layer 1033 are transparent conductive layers.
  • the first electrode layer 1021 and the second electrode layer 1023 and the third electrode layer 1031 and the fourth electrode layer 1033 are transparent conductive layers, the first electrode layer 1021 and the second electrode layer 1023 and the third electrode layer 1031 and the fourth electrode layer 1033 can be avoided.
  • the four-electrode layer 1033 interferes with the changing states of haze and light transmittance of the first polymer dispersed liquid crystal layer 1022 and the second polymer dispersed liquid crystal layer 1032 .
  • the material used for the first electrode layer 1021 , the second electrode layer 1023 , the third electrode layer 1031 and the fourth electrode layer 1033 may be indium tin oxide (ITO).
  • ITO indium tin oxide
  • indium tin oxide is a mixture of 90% In2O3 and 10% SnO2, which is mainly used to make liquid crystal displays, flat panel displays, plasma displays, touch screens, electronic paper, organic light-emitting diodes, solar cells, Antistatic coating, transparent conductive coating, various optical coatings, etc.
  • the materials used for the first electrode layer 1021 , the second electrode layer 1023 , the third electrode layer 1031 and the fourth electrode layer 1033 can also be transparent conductive materials such as nano-silver paste or metal oxide.
  • the thickness of the first electrode layer 1021 may be greater than or equal to 5 nm, and the thickness of the first electrode layer 1021 may be less than or equal to 20 nm.
  • the thickness of the first electrode layer 1021 may be 5 nm, 10 nm or 20 nm, etc., which is not limited in this embodiment of the present application.
  • the thickness of the second electrode layer 1023 may be greater than or equal to 5 nm, and the thickness of the second electrode layer 1023 may be less than or equal to 20 nm.
  • the thickness of the second electrode layer 1023 can be 5nm, 10nm or 15nm and so on.
  • the thickness of the third electrode layer 1031 may be greater than or equal to 5 nm, and the thickness of the third electrode layer 1031 may be less than or equal to 20 nm.
  • the thickness of the third electrode layer 1031 may be 6nm, 10nm or 15nm and so on.
  • the thickness of the fourth electrode layer 1033 may be greater than or equal to 5 nm, and the thickness of the fourth electrode layer 1033 may be less than or equal to 20 nm.
  • the thickness of the fourth electrode layer 1033 can be 8nm, 10nm or 15nm and so on.
  • the material layer 10 may further include: a protective film layer 104 , and the protective film layer 104 is located on the side of the first color-developing layer 101 away from the first substrate layer 20 .
  • the protective film layer 104 can protect the first color-developing layer 101 and prevent external conditions or factors from affecting the color of the first color-developing layer 101 .
  • the protective film layer 104 may be a transparent film layer.
  • the material used for the protective film layer 104 may be polyethylene terephthalate (polyethylene terephthalate, PET).
  • PET polyethylene terephthalate
  • the molecular structure of PET plastic is highly symmetrical, and it has a certain crystal orientation ability, so it has high film-forming properties. PET plastic has good optical performance and weather resistance, and amorphous PET plastic has good optical transparency. In addition, PET plastic has excellent wear resistance, dimensional stability and electrical insulation.
  • the material used for the protective film layer 104 may also be Cyclo Olefin Polymer (COP).
  • COP is bicycloheptene (norbornene) under the action of a metallocene catalyst ring-opening ex-situ polymerization, and then undergoes hydrogenation reaction to form an amorphous homopolymer, which can be applied to medical optical components and high-end pharmaceutical packaging materials, COP It has the advantages of high transparency, low birefringence, low water absorption, high rigidity, high heat resistance and good water vapor air tightness.
  • the material used for the protective film layer 104 may also be polyimide (Polyimide, PI).
  • PI is one of the organic polymer materials with the best comprehensive properties, its high temperature resistance can reach over 400°C, and it has high insulation properties.
  • the protective film layer 104 may also be a film layer formed of other protective materials, which is not limited in this embodiment of the present application, nor is it limited to the above examples.
  • the thickness of the protective film layer 104 may be greater than or equal to 15 um, and the thickness of the protective film layer 104 may be less than or equal to 50 um.
  • the thickness of the protective film layer 104 may be 15um, 25um or 38um, etc., which is not limited in this embodiment of the present application.
  • the battery cover 100 provided by the embodiment of the present application may further include: a second base material layer 30 , and a protective film layer 104 is located between the second base material layer 30 and the first color-developing layer 101 .
  • the second base material layer 30 can also play a protective role to prevent external conditions or factors from affecting the material layer 10 , such as preventing damage to the material layer 10 caused by external scratches or falls.
  • the second substrate layer 30 may be made of glass.
  • the second substrate layer 30 may also be made of other transparent materials, which is not limited in this embodiment of the present application.
  • the optical axes of the small droplets composed of liquid crystal molecules inside are in free orientation, and the first polymer-dispersed liquid crystal layer 1032
  • the refractive index of the liquid crystal layer 1022 and the second polymer-dispersed liquid crystal layer 1032 does not match the refractive index of the second substrate layer 30, and when light passes through the second substrate layer 30, it is strongly scattered by the droplets, thus making the first polymer
  • the dispersed liquid crystal layer 1022 and the second polymer dispersed liquid crystal layer 1032 are opaque milky white or translucent.
  • the electric field can adjust the optical axis of the liquid crystal droplets inside the first polymer dispersed liquid crystal layer 1022 and the second polymer dispersed liquid crystal layer 1032 Orientation, when the refractive index of the first polymer dispersed liquid crystal layer 1022 and the second polymer dispersed liquid crystal layer 1032 matches the refractive index of the second substrate layer 30, the first polymer dispersed liquid crystal layer 1022 and the second polymer dispersed liquid crystal layer The dispersed liquid crystal layer 1032 is in a transparent state, so that the color change of the battery cover 100 can be realized through the first polymer dispersed liquid crystal layer 1022 and the second polymer dispersed liquid crystal layer 1032 .
  • the second substrate layer 30 and the protective film layer 104 may be connected through an adhesive layer 40 .
  • the adhesive layer 40 may be an adhesive layer formed of a transparent material.
  • the second substrate layer 30 and the protective film layer 104 may be connected by optical glue (Optically Clear Adhesive, OCA).
  • OCA optical glue is a special adhesive used for bonding transparent optical components (such as lenses, etc.).
  • OCA optical adhesive has the characteristics of colorless and transparent, light transmittance above 90%, good bonding strength, can be cured at room temperature or medium temperature, and has the characteristics of small curing shrinkage.
  • OCA optical adhesive is one of the important raw materials in the touch screen. It is made of optical acrylic adhesive without substrate, and then laminated with a layer of release film on the upper and lower bottom layers. It is a double-sided adhesive tape without substrate material. .
  • the thickness of the adhesive layer 40 may be greater than or equal to 15 um, and the thickness of the adhesive layer 40 may be less than or equal to 50 um.
  • the thickness of the adhesive layer 40 may be 15um, 25um or 50um, etc., which is not limited in this embodiment of the present application.
  • the battery cover 100 provided by the embodiment of the present application may further include: a vacuum coating layer 50 located between at least one intermediate layer and the first substrate layer 20 .
  • the vacuum coating 50 can play a role in increasing the color and texture of the appearance.
  • the vacuum coating layer 50 may be a non-conductive layer.
  • the material used for the vacuum coating layer 50 may be indium tin or silicon titania, etc., which is not limited in this embodiment of the present application.
  • the thickness of the vacuum coating layer 50 may be greater than or equal to 50 nm, and the thickness of the vacuum coating layer 50 may be less than or equal to 600 nm.
  • the thickness of the vacuum coating 50 may be 80nm, 200nm or 400nm, etc., which is not limited in this embodiment of the present application.
  • connection should be understood in a broad sense, for example, it can be a fixed connection or a An indirect connection through an intermediary may be an internal communication between two elements or an interaction relationship between two elements.

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Abstract

本申请实施例提供一种电池盖及电子设备，电池盖通过在第一基材层上设置材料层，材料层至少包括第一显色层以及至少一个中间层，至少一个中间层位于第一显色层和第一基材层之间；至少一个中间层中的第一中间层包括层叠设置的第一电极层、第一聚合物分散液晶层、第二电极层以及第二显色层，第二显色层所显示的颜色与第一显色层所显示的颜色不相同；第一电极层和第二电极层中的其中一者位于第一聚合物分散液晶层与第一显色层之间，第一电极层和第二电极层中的另一者位于第一聚合物分散液晶层和第二显色层之间，且第二显色层还位于第一电极层和第二电极层中的另一者和第一基材层之间，这样，能够降低电池盖的制作成本，简化电池盖的制作工艺。

Description

电池盖及电子设备
本申请要求于2021年08月12日提交中国专利局、申请号为202110924855.3，申请名称为“电池盖及电子设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及终端技术领域，特别涉及一种电池盖及电子设备。
背景技术
手机、电脑等电子设备已经和我们的生活密不可分，生活中随处可见，且极大地提高了人们的生活水平。而电子设备的美观度，例如电子设备外壳的美观性直接影响着消费者的购买欲望。目前，电子设备外壳的颜色一般是固定的，为了实现电子设备的外观颜色与用户之间的交互，电子设备产品的电池盖会采用变色方案，以增加产品外观竞争力。
以电子设备为手机为例，相关技术中，手机的后壳采用透明导电层、电致变色层、离子导体层、离子储存层以及玻璃层所制成，其中，透明导电层和玻璃层的数量均为两个，两个透明导电层之间依次设置有电致变色层、离子导体层和离子储存层，且玻璃层位于透明导电层背离离子导体层的一侧。具体地，手机的后壳变色是通过材料中的离子和电子被注入和抽出所产生的。当透明导电层加上正相直流电压时，离子储存层内的离子被抽出，通过离子导体层，进入电致变色层，实现电致变色层颜色的改变，使系统由原来的初始透明状态变为着色状态。当透明导电层被加上反相直流电压时，电致变色层的离子被抽出，通过离子导体层，又回到离子储存层内，使系统由着色状态恢复到原来的初始透明状态。
然而，采用上述方案时，手机后壳的制作成本高，且制作工艺较为复杂。
发明内容
本申请提供一种电池盖及电子设备，能够降低电池盖的制作成本，简化电池盖的制作工艺。
第一方面，本申请实施例提供一种电池盖，该电池盖至少包括：第一基材层以及设置在所述第一基材层上的材料层；所述材料层至少包括：第一显色层以及至少一个中间层，所述至少一个中间层位于所述第一显色层和所述第一基材层之间；所述至少一个中间层包括：第一中间层；
第一中间层包括层叠设置的：第一电极层、第一聚合物分散液晶层、第二电极层以及第二显色层，其中，所述第二显色层所显示的颜色与所述第一显色层所显示的颜色不相同；所述第一电极层和所述第二电极层中的其中一者位于所述第一聚合物分散液晶层与所述第一显色层之间，所述第一电极层和所述第二电极层中的另一者位于所 述第一聚合物分散液晶层和所述第二显色层之间；且所述第二显色层还位于所述第一电极层和所述第二电极层中的另一者和所述第一基材层之间。
本申请实施例提供的电池盖，通过在第一基材层上设置材料层，该材料层包括第一显色层以及位于第一显色层和第一基材层之间的至少一个中间层，至少一个中间层中的第一中间层包括层叠设置的第一电极层、第一聚合物分散液晶层、第二电极层以及第二显色层，第二显色层所显示的颜色与第一显色层所显示的颜色不相同，第一电极层和第二电极层中的其中一者位于第一聚合物分散液晶层与第一显色层之间，第一电极层和第二电极层中的另一者位于第一聚合物分散液晶层和第二显色层之间，且第二显色层还位于第一电极层和第二电极层中的另一者和第一基材层之间，这样，第一电极层和第二电极层处于断电状态时，第一聚合物分散液晶层呈现乳白色不透光，电池盖仅显示第一显色层的颜色。第一电极层和第二电极层处于通电状态时，第一聚合物分散液晶层呈现透明态，且由于第二显色层所显示的颜色与第一显色层所显示的颜色不相同，电池盖能够显示第一显色层和第二显色层两种颜色叠加后的效果，因而能够实现颜色变化的效果。而且，和现有技术相比，通过上述设置，本申请实施例能够降低电池盖的制作成本，简化电池盖的制作工艺。
在一种可能的实现方式中，还包括：至少一个电压控制电路；所述至少一个电压控制电路包括：第一电压控制电路；所述第一中间层中的所述第一电极层和所述第二电极层均与所述第一电压控制电路电连接。
至少一个电压控制电路中的第一电压控制电路与第一电极层和第二电极层电连接，就是利用聚合物分散液晶的特性，第一电压控制电路通过第一电极层和第二电极层对第一聚合物分散液晶层施加电压，这样，在电压逐渐增大的过程中，第一聚合物分散液晶层从高雾度状态逐渐变为低雾度的透明状态，在电压逐渐减小的过程中，第一聚合物分散液晶层从低雾度的透明状态逐渐变为高雾度状态，即第一电压控制电路用于调节第一聚合物分散液晶层的雾度和透光度。
在一种可能的实现方式中，所述第一电极层和所述第二电极层在断电状态下，所述第一聚合物分散液晶层的透光率低于20％；所述第一电极层和所述第二电极层在通电状态下，所述第一聚合物分散液晶层的透光率高于70％。
第一聚合物分散液晶层的透光率低于20％，即能保证第一聚合物分散液晶层呈现白色磨砂外观，第一聚合物分散液晶层的透光率高于70％，即能保证第一聚合物分散液晶层为透明状态，这样，第一电极层和第二电极层在断电状态下，第一聚合物分散液晶层呈现乳白色不透光，电池盖仅显示第一显色层的颜色。第一电极层和第二电极层在通电状态下，第一聚合物分散液晶层为透明状态，电池盖能够显示第一显色层和第二显色层两种颜色叠加后的效果，因而能够实现颜色变化的效果。
在一种可能的实现方式中，所述至少一个中间层还包括：第二中间层；所述第二中间层位于所述第一中间层和所述第一基材层之间，或者，所述第二中间层位于所述第一中间层和所述第一显色层之间；
第二中间层包括层叠设置的：第三电极层、第二聚合物分散液晶层、第四电极层以及第三显色层，其中，所述第三显色层所显示的颜色与所述第一显色层所显示的颜色以及所述第二显色层所显示的颜色均不相同；所述第三电极层和所述第四电极层分 别位于所述第二聚合物分散液晶层的两侧，所述第三显色层位于所述第三电极层和所述第四电极层中的任意一者背离所述第二聚合物分散液晶层的一面上。
这样，第一电极层和第二电极层以及第三电极层和第四电极层均处于断电状态时，第一聚合物分散液晶层和第二聚合物分散液晶层呈现乳白色不透光，电池盖仅显示第一显色层的颜色。
第一电极层和第二电极层处于通电状态但是第三电极层和第四电极层处于断电状态时，第一聚合物分散液晶层呈现透明态，第二聚合物分散液晶层呈现乳白色不透光，且由于第二显色层所显示的颜色与第一显色层所显示的颜色不相同，电池盖能够显示第一显色层和第二显色层两种颜色叠加后的效果。
第一电极层和第二电极层处于断电状态但是第三电极层和第四电极层处于通电状态时，第一聚合物分散液晶层呈现乳白色不透光，第二聚合物分散液晶层呈现透明态，且由于第三显色层所显示的颜色与第一显色层所显示的颜色不相同，电池盖能够显示第一显色层和第三显色层两种颜色叠加后的效果。
第一电极层和第二电极层以及第三电极层和第四电极层均处于通电状态时，第一聚合物分散液晶层和第二聚合物分散液晶层均呈现透明态，由于第三显色层所显示的颜色与第一显色层所显示的颜色以及第二显色层所显示的颜色均不相同，电池盖能够显示第一显色层、第二显色层以及第三显色层三种颜色叠加后的效果，因而能够实现多种颜色变化的效果。
在一种可能的实现方式中，所述至少一个电压控制电路还包括：第二电压控制电路；所述第二中间层中的所述第三电极层和所述第四电极层均与所述第二电压控制电路电连接。
至少一个电压控制电路中的第二电压控制电路与第三电极层和第四电极层电连接，就是利用聚合物分散液晶的特性，第二电压控制电路通过第三电极层和第四电极层对第二聚合物分散液晶层施加电压，这样，在电压逐渐增大的过程中，第二聚合物分散液晶层从高雾度状态逐渐变为低雾度的透明状态，在电压逐渐减小的过程中，第二聚合物分散液晶层从低雾度的透明状态逐渐变为高雾度状态，即第二电压控制电路用于调节第二聚合物分散液晶层的雾度和透光度。
在一种可能的实现方式中，所述第三电极层和所述第四电极层在断电状态下，所述第二聚合物分散液晶层的透光率低于20％；所述第三电极层和所述第四电极层在通电状态下，所述第二聚合物分散液晶层的透光率高于70％。
第二聚合物分散液晶层的透光率低于20％，即能保证第二聚合物分散液晶层呈现白色磨砂外观，第二聚合物分散液晶层的透光率高于70％，即能保证第二聚合物分散液晶层为透明状态。
在一种可能的实现方式中，所述第一电极层位于所述第一聚合物分散液晶层与所述第一显色层之间，所述第二电极层位于所述第一聚合物分散液晶层和所述第二显色层之间。
在一种可能的实现方式中，所述第二中间层位于所述第一中间层和所述第一基材层之间时，所述第三电极层和所述第四电极层中的其中一者位于所述第二聚合物分散液晶层与所述第二显色层之间，所述第三电极层和所述第四电极层中的另一者位于所 述第二聚合物分散液晶层和所述第三显色层之间；且所述第三显色层还位于所述第三电极层和所述第四电极层中的另一者和所述第一基材层之间；
或者，所述第二中间层位于所述第一中间层和所述第一显色层之间时，所述第三电极层和所述第四电极层中的其中一者位于所述第二聚合物分散液晶层与所述第一显色层之间，所述第三电极层和所述第四电极层中的另一者位于所述第二聚合物分散液晶层和所述第三显色层之间；且所述第三显色层还位于所述第三电极层和所述第四电极层中的另一者和所述第一电极层之间。
在一种可能的实现方式中，所述第一聚合物分散液晶层的厚度大于等于1um，所述第一聚合物分散液晶层的厚度小于等于4um；所述第二聚合物分散液晶层的厚度大于等于1um，所述第二聚合物分散液晶层的厚度小于等于4um。
在一种可能的实现方式中，所述第一显色层、所述第二显色层以及所述第三显色层为有机发光层。
在一种可能的实现方式中，所述第一显色层、所述第二显色层和所述第三显色层中的至少一者上设有纹理结构。纹理结构能够使得电池盖的外观面具有随光而动、若隐若现的纹理效果，或者能够使得电池盖的外观具有立体浮雕的图案，增强电池盖的立体效果，给用户带来一种特殊的视觉体验。
在一种可能的实现方式中，所述第一电极层、所述第二电极层、所述第三电极层以及所述第四电极层为透明导电层。通过第一电极层和第二电极层以及第三电极层和第四电极层为透明导电层，能够避免第一电极层和第二电极层以及第三电极层和第四电极层对聚合物分散液晶层的雾度和透光度变化状态产生干涉。
在一种可能的实现方式中，所述第一电极层、所述第二电极层、所述第三电极层以及所述第四电极层所采用的材料为氧化铟锡。
在一种可能的实现方式中，所述第一电极层的厚度大于等于5nm，所述第一电极层的厚度小于等于20nm；所述第二电极层的厚度大于等于5nm，所述第二电极层的厚度小于等于20nm；所述第三电极层的厚度大于等于5nm，所述第三电极层的厚度小于等于20nm；所述第四电极层的厚度大于等于5nm，所述第四电极层的厚度小于等于20nm。
在一种可能的实现方式中，所述材料层还包括：保护膜层；所述保护膜层位于所述第一显色层背离所述第一基材层的一面上。保护膜层能够起到保护作用，避免外部条件或因素对材料层造成影响。
在一种可能的实现方式中，所述保护膜层所采用的的材料为聚对苯二甲酸乙二醇酯。
在一种可能的实现方式中，所述保护膜层的厚度大于等于25um，所述保护膜层的厚度小于等于50um。
在一种可能的实现方式中，还包括：第二基材层；所述保护膜层位于所述第二基材层和所述第一显色层之间。第二基材层同样能够起到保护作用，避免外部条件或因素对材料层造成影响，例如避免外部剐蹭或摔打对材料层造成损坏。
在一种可能的实现方式中，所述第二基材层与所述保护膜层之间通过光学胶相连。
在一种可能的实现方式中，还包括：真空镀层；所述真空镀层位于所述至少一个 中间层和所述第一基材层之间。真空镀层能够起到增加外观颜色质感的作用。
在一种可能的实现方式中，所述真空镀层为不导电层。
在一种可能的实现方式中，所述真空镀层所采用的的材料为铟锡或者硅钛氧。
第二方面，本申请实施例提供一种电子设备，该电子设备至少包括：显示屏、中框以及上述任一所述的电池盖，所述显示屏和所述电池盖分别位于所述中框的两侧。
本申请实施例提供的电子设备，该电子设备至少包括电池盖，该电池盖通过在第一基材层上设置材料层，该材料层包括第一显色层以及位于第一显色层和第一基材层之间的至少一个中间层，至少一个中间层中的第一中间层包括层叠设置的第一电极层、第一聚合物分散液晶层、第二电极层以及第二显色层，第二显色层所显示的颜色与第一显色层所显示的颜色不相同，第一电极层和第二电极层中的其中一者位于第一聚合物分散液晶层与第一显色层之间，第一电极层和第二电极层中的另一者位于第一聚合物分散液晶层和第二显色层之间，且第二显色层还位于第一电极层和第二电极层中的另一者和第一基材层之间，这样，第一电极层和第二电极层处于断电状态时，第一聚合物分散液晶层呈现乳白色不透光，电池盖仅显示第一显色层的颜色。第一电极层和第二电极层处于通电状态时，第一聚合物分散液晶层呈现透明态，且由于第二显色层所显示的颜色与第一显色层所显示的颜色不相同，电池盖能够显示第一显色层和第二显色层两种颜色叠加后的效果，因而能够实现颜色变化的效果。而且，和现有技术相比，通过上述设置，本申请实施例能够降低电池盖的制作成本，简化电池盖的制作工艺。
附图说明
图1为本申请一实施例提供的电子设备的整体结构示意图；
图2为本申请一实施例提供的电子设备的拆分结构示意图；
图3为本申请一实施例提供的电子设备的拆分结构示意图；
图4为本申请一实施例提供的电子设备中电池盖的结构示意图；
图5为本申请一实施例提供的电子设备沿着图4中的A-A方向的一种剖面结构示意图；
图6为本申请一实施例提供的电子设备沿着图4中的A-A方向的另一种剖面结构示意图；
图7为本申请一实施例提供的电子设备沿着图4中的A-A方向的再一种剖面结构示意图；
图8为本申请一实施例提供的电子设备沿着图4中的A-A方向的又一种剖面结构示意图；
图9为本申请一实施例提供的电子设备沿着图4中的A-A方向的又一种剖面结构示意图。
附图标记说明：
100-电池盖；      10-材料层；           101-第一显色层；
102-第一中间层；  1021-第一电极层；     1022-第一聚合物分散液晶层；
1023-第二电极层；       1024-第二显色层；              103-第二中间层；
1031-第三电极层；       1032-第二聚合物分散液晶层；   1033-第四电极层；
1034-第三显色层；       104-保护膜层；                 20-第一基材层；
30-第二基材层；         40-粘接层；                    50-真空镀层；
200-手机；              21-显示屏；                    211-开孔；
22-中框；               221-边框；                     222-金属中板；
23-电路板；             24-电池；                      25a-前置摄像组件；
25b-后置摄像组件。
具体实施方式
本申请的实施方式部分使用的术语仅用于对本申请的具体实施例进行解释，而非旨在限定本申请，下面将结合附图对本申请实施例的实施方式进行详细描述。
本申请实施例提供一种电子设备，可以包括但不限于为手机、平板电脑、笔记本电脑、超级移动个人计算机(ultra-mobile personal computer，UMPC)、手持计算机、对讲机、上网本、销售点(Point of sales，POS)机、个人数字助理(personal digital assistant，PDA)、可穿戴设备、虚拟现实设备、无线U盘、蓝牙音响/耳机、或车载前装、行车记录仪、安防设备等具有壳体的移动或固定终端。
其中，本申请实施例中，以手机200为上述电子设备为例进行说明，本申请实施例提供的手机200可以为曲面屏手机也可以为平面屏手机，本申请实施例中以平面屏手机为例进行说明。图1和图2分别示出了手机200的整体结构和拆分结构，本申请实施例提供的手机200的显示屏21可以为水滴屏、刘海屏、全面屏或者挖孔屏(参见图1所示)，例如，显示屏21上开设有开孔211，下述描述以挖孔屏为例进行说明。
参见图2所示，手机200可以包括：显示屏21、中框22和电池盖100，显示屏21和电池盖100分别位于中框22的两侧。另外，手机200还可以包括位于中框22和电池盖100之间的电池24，其中，电池24可以设在中框22朝向电池盖100的一面上(如图2所示)，或者电池24可以设置在中框22朝向显示屏21的一面上，例如中框22朝向电池盖100的一面可以具有电池仓(图中未示出)，电池24安装在电池仓中。在一些其它的示例中，手机200还可以包括电路板23，其中，电路板23可以设置在中框22上，例如，电路板23可以设置在中框22朝向电池盖100的一面上(如图2所示)，或者电路板23可以设置在中框22朝向显示屏21的一面上，显示屏21和电池盖100分别位于中框22的两侧。
其中，电池24可以通过电源管理模块与充电管理模块和电路板23相连，电源管理模块接收电池24和/或充电管理模块的输入，并为处理器、内部存储器、外部存储器、显示屏21、摄像模组以及通信模块等供电。电源管理模块还可以用于监测电池24容量，电池24循环次数，电池24健康状态(漏电，阻抗)等参数。在其他一些实施例中，电源管理模块也可以设置于电路板23的处理器中。在另一些实施例中，电源管理模块和充电管理模块也可以设置于同一个器件中。
当手机200为平面屏手机时，显示屏21可以为有机发光二极管(Organic Light-Emitting Diode，OLED)显示屏，也可以为液晶显示屏(Liquid Crystal Display， LCD)，当手机200为曲面屏手机时，显示屏21可以为OLED显示屏。应当理解的是，显示屏21可以包括显示器和触控器件，显示器用于向用户输出显示内容，触控器件用于接收用户在显示屏21上输入的触摸事件。
继续参照图2，中框22可以包括金属中板222和边框221，边框221围绕金属中板222的外周设置一周。一般地，边框221可以包括顶边框、底边框、左侧边框和右侧边框，顶边框、底边框、左侧边框和右侧边框围成方环结构的边框。其中，金属中板222的材料包括但不限于为铝板、铝合金、不锈钢、钢铝复合压铸板、钛合金或镁合金等。边框221可以为金属边框，也可以为陶瓷边框，还可以为玻璃边框。当边框221为金属边框时，金属边框的材料包括但不限于为铝合金、不锈钢、钢铝复合压铸板或钛合金等。其中，金属中板222和边框221之间可以卡接、焊接、粘合或一体成型，或者金属中板222与边框221之间可以通过注塑固定相连。
顶边框和底边框相对设置，左侧边框与右侧边框相对设置，顶边框分别与左侧边框的一端和右侧边框的一端呈圆角连接，底边框分别与左侧边框的另一端和右侧边框的另一端呈圆角连接，从而共同形成一圆角矩形区域。后壳接地面设置于圆角矩形区域内，并分别与顶边框、底边框、左侧边框以及右侧边框连接。可以理解的是，后壳接地面可以为手机200的电池盖100。
电池盖100可以为金属后壳，也可以为玻璃后壳，还可以为塑料后壳，或者，还可以为陶瓷后壳，本申请实施例中，对电池盖100的材质并不加以限定，也不限于上述示例。
需要说明的是，在一些示例中，手机200的电池盖100可以与边框221相连形成一体成型(Unibody)后壳，例如手机200可以包括：显示屏21、金属中板222和后壳，后壳可以为边框221和电池盖100一体成型(Unibody)形成的后壳，这样电路板23和电池24位于金属中板222和后壳围成的空间中。
其中，为了实现拍摄功能，手机200还可以包括：摄像组件，摄像组件可以设置在中框22上，且摄像组件的摄像头朝向显示屏21或者朝向电池盖100。摄像组件可以为前置摄像组件25a，也可以为后置摄像组件25b，或者，摄像组件的数量可以为两个，其中一个摄像组件为前置摄像组件25a，另一个摄像组件为后置摄像组件25b(参见图3所示)。
具体地，后置摄像组件25b可以设置在金属中板222朝向电池盖100的一面上，显示屏21上开设有开孔211，后置摄像组件25b的镜头与开孔211相对应。电池盖100上可以开设可供后置摄像组件25b的部分区域安装的安装孔(图中未示出)，当然，后置摄像组件25b也可以安装在电池盖100朝向金属中板222的一面上。前置摄像组件25a可以设在金属中板222朝向显示屏21的一面上，或者前置摄像组件25a可以设在金属中板222朝向电池盖100的一面上，或者，前置摄像组件25a还可以设在电池盖100朝向显示屏21的一面上，金属中板222上开设可供前置摄像组件25a的镜头端裸露的开口。
本申请实施例中，前置摄像组件25a和后置摄像组件25b的设置位置可以包括但不限于上述描述。其中，在一些实施例中，笔记本电脑300内设置的前置摄像组件25a和后置摄像组件25b的数量可以为1个或N个，N为大于等于1的正整数。
可以理解的是，本申请实施例示意的结构并不构成对手机200的具体限定。在本申请另一些实施例中，手机200可以包括比图示更多或更少的部件，或者组合某些部件，或者拆分某些部件，或者不同的部件布置。图示的部件可以以硬件，软件或软件和硬件的组合实现。
参照图4和图5所示，本申请实施例提供一种电池盖100，该电池盖100至少可以包括：第一基材层20以及设置在第一基材层20上的材料层10，其中，材料层10至少可以包括：第一显色层101以及至少一个中间层(例如第一中间层102或第二中间层103)，而且，至少一个中间层可以位于第一显色层101和第一基材层20之间。
具体地，继续参照图4所示，在本申请实施例中，至少一个中间层可以包括：第一中间层102，其中，第一中间层102可以包括层叠设置的：第一电极层1021、第一聚合物分散液晶层1022、第二电极层1023以及第二显色层1024，其中，第二显色层1024所显示的颜色与第一显色层101所显示的颜色不相同。
而且，第一电极层1021和第二电极层1023中的其中一者位于第一聚合物分散液晶层1022与第一显色层101之间，第一电极层1021和第二电极层1023中的另一者位于第一聚合物分散液晶层1022和第二显色层1024之间，且第二显色层1024还位于第一电极层1021和第二电极层1023中的另一者和第一基材层20之间。
可以理解的是，第一电极层1021和第二电极层1023的具体设置位置包括但不限于以下两种可能的实现方式：
一种可能的实现方式为：如图4所示，第一电极层1021位于第一聚合物分散液晶层1022与第一显色层101之间，第二电极层1023位于第一聚合物分散液晶层1022和第二显色层1024之间，且第二显色层1024位于第二电极层1023和第一基材层20之间。
另一种可能的实现方式为：(图中未示出)第二电极层1023位于第一聚合物分散液晶层1022与第一显色层101之间，第一电极层1021位于第一聚合物分散液晶层1022和第二显色层1024之间，且第二显色层1024位于第一电极层1021和第一基材层20之间。
这样，第一电极层1021和第二电极层1023处于断电状态时，第一聚合物分散液晶层1022呈现乳白色不透光，电池盖100仅显示第一显色层101的颜色。第一电极层1021和第二电极层1023处于通电状态时，第一聚合物分散液晶层1022呈现透明态，且由于第二显色层1024所显示的颜色与第一显色层101所显示的颜色不相同，电池盖100能够显示第一显色层101和第二显色层1024两种颜色叠加后的效果，因而能够实现颜色变化的效果。而且，和现有技术相比，通过上述设置，本申请实施例能够降低电池盖100的制作成本，简化电池盖100的制作工艺。
在一种可能的实现方式中，本申请实施例提供的电池盖100还可以包括：至少一个电压控制电路(图中未示出)，其中，至少一个电压控制电路可以包括：第一电压控制电路，第一中间层102中的第一电极层1021和第二电极层1023均与第一电压控制电路电连接。
至少一个电压控制电路中的第一电压控制电路与第一电极层1021和第二电极层1023电连接，就是利用聚合物分散液晶的特性，第一电压控制电路通过第一电极层 1021和第二电极层1023对第一聚合物分散液晶层1022施加电压，这样，在电压逐渐增大的过程中，第一聚合物分散液晶层1022从高雾度状态逐渐变为低雾度的透明状态，在电压逐渐减小的过程中，第一聚合物分散液晶层1022从低雾度的透明状态逐渐变为高雾度状态，即第一电压控制电路用于调节第一聚合物分散液晶层1022的雾度和透光度。
需要说明的是，在本申请实施例中，第一电极层1021和第二电极层1023在断电状态下，第一聚合物分散液晶层1022的透光率可以低于20％，第一电极层1021和第二电极层1023在通电状态下，第一聚合物分散液晶层1022的透光率可以高于70％。
第一聚合物分散液晶层1022的透光率低于20％，即能保证第一聚合物分散液晶层1022呈现白色磨砂外观，第一聚合物分散液晶层1022的透光率高于70％，即能保证第一聚合物分散液晶层1022为透明状态，这样，第一电极层1021和第二电极层1023在断电状态下，第一聚合物分散液晶层1022呈现乳白色不透光，电池盖100仅显示第一显色层101的颜色。第一电极层1021和第二电极层1023在通电状态下，第一聚合物分散液晶层1022为透明状态，电池盖100能够显示第一显色层101和第二显色层1024两种颜色叠加后的效果，因而能够实现颜色变化的效果。
参照图6所示，在本申请实施例中，至少一个中间层还可以包括：第二中间层103，第二中间层103位于第一中间层102和第一基材层20之间，或者，第二中间层103位于第一中间层102和第一显色层101之间。
具体地，继续参照图6所示，第二中间层103可以包括层叠设置的：第三电极层1031、第二聚合物分散液晶层1032、第四电极层1033以及第三显色层1034，其中，第三显色层1034所显示的颜色与第一显色层101所显示的颜色以及第二显色层1024所显示的颜色均不相同。
而且，第三电极层1031和第四电极层1033可以分别位于第二聚合物分散液晶层1032的两侧，第三显色层1034位于第三电极层1031和第四电极层1033中的任意一者背离第二聚合物分散液晶层1032的一面上。示例性地，第三显色层1034可以位于第三电极层1031背离第二聚合物分散液晶层1032的一面上，或者，第三显色层1034可以位于第四电极层1033背离第二聚合物分散液晶层1032的一面上。
这样，第一电极层1021和第二电极层1023以及第三电极层1031和第四电极层1033均处于断电状态时，第一聚合物分散液晶层1022和第二聚合物分散液晶层1032呈现乳白色不透光，电池盖100仅显示第一显色层101的颜色。
第一电极层1021和第二电极层1023处于通电状态但是第三电极层1031和第四电极层1033处于断电状态时，第一聚合物分散液晶层1022呈现透明态，第二聚合物分散液晶层1032呈现乳白色不透光，且由于第二显色层1024所显示的颜色与第一显色层101所显示的颜色不相同，电池盖100能够显示第一显色层101和第二显色层1024两种颜色叠加后的效果。
第一电极层1021和第二电极层1023处于断电状态但是第三电极层1031和第四电极层1033处于通电状态时，第一聚合物分散液晶层1022呈现乳白色不透光，第二聚合物分散液晶层1032呈现透明态，且由于第三显色层1034所显示的颜色与第一显色层101所显示的颜色不相同，电池盖100能够显示第一显色层101和第三显色层1034 两种颜色叠加后的效果。
第一电极层1021和第二电极层1023以及第三电极层1031和第四电极层1033均处于通电状态时，第一聚合物分散液晶层1022和第二聚合物分散液晶层1032均呈现透明态，由于第三显色层1034所显示的颜色与第一显色层101所显示的颜色以及第二显色层1024所显示的颜色均不相同，电池盖100能够显示第一显色层101、第二显色层1024以及第三显色层1034三种颜色叠加后的效果，因而能够实现多种颜色变化的效果，解决了现有技术中手机电池盖变色时，颜色变化单一的问题。
在一种可能的实现方式中，至少一个电压控制电路还可以包括：第二电压控制电路(图中未示出)，其中，第二中间层103中的第三电极层1031和第四电极层1033均与第二电压控制电路电连接。
至少一个电压控制电路中的第二电压控制电路与第三电极层1031和第四电极层1033电连接，就是利用聚合物分散液晶的特性，第二电压控制电路通过第三电极层1031和第四电极层1033对第二聚合物分散液晶层1032施加电压，这样，在电压逐渐增大的过程中，第二聚合物分散液晶层1032从高雾度状态逐渐变为低雾度的透明状态，在电压逐渐减小的过程中，第二聚合物分散液晶层1032从低雾度的透明状态逐渐变为高雾度状态，即第二电压控制电路用于调节第二聚合物分散液晶层1032的雾度和透光度。
需要说明的是，在本申请实施例中，第三电极层1031和第四电极层1033在断电状态下，第二聚合物分散液晶层1032的透光率可以低于20％。第三电极层1031和第四电极层1033在通电状态下，第二聚合物分散液晶层1032的透光率可以高于70％。
第二聚合物分散液晶层1032的透光率低于20％，即能保证第二聚合物分散液晶层1032呈现白色磨砂外观，第二聚合物分散液晶层1032的透光率高于70％，即能保证第二聚合物分散液晶层1032为透明状态。
另外，可以理解的是，在本申请实施例中，第一电极层1021和第二电极层1023的具体设置位置包括但不限于以下两种可能的实现方式：
一种可能的实现方式为：如图6所示，第一电极层1021位于第一聚合物分散液晶层1022与第一显色层101之间，第二电极层1023位于第一聚合物分散液晶层1022和第二显色层1024之间。
另一种可能的实现方式为：(图中未示出)第二电极层1023位于第一聚合物分散液晶层1022与第一显色层101之间，第一电极层1021位于第一聚合物分散液晶层1022和第二显色层1024之间。
可以理解的是，当第二中间层103位于第一中间层102和第一基材层20之间时，第三电极层1031和第四电极层1033中的其中一者位于第二聚合物分散液晶层1032与第二显色层1024之间，第三电极层1031和第四电极层1033中的另一者位于第二聚合物分散液晶层1032和第三显色层1034之间，且第三显色层1034还位于第三电极层1031和第四电极层1033中的另一者和第一基材层20之间。
也就是说，当第二中间层103位于第一中间层102和第一基材层20之间时，第三电极层1031可以位于第二聚合物分散液晶层1032与第二显色层1024之间，第四电极层1033可以位于第二聚合物分散液晶层1032和第三显色层1034之间，且第三显色层 1034位于第四电极层1033和第一基材层20之间。或者，当第二中间层103位于第一中间层102和第一基材层20之间时，第四电极层1033可以位于第二聚合物分散液晶层1032与第二显色层1024之间，第三电极层1031可以位于第二聚合物分散液晶层1032和第三显色层1034之间，且第三显色层1034位于第三电极层1031和第一基材层20之间。
可以理解的是，当第二中间层103位于第一中间层102和第一显色层101之间时，第三电极层1031和第四电极层1033中的其中一者位于第二聚合物分散液晶层1032与第一显色层101之间，第三电极层1031和第四电极层1033中的另一者位于第二聚合物分散液晶层1032和第三显色层1034之间，且第三显色层1034还位于第三电极层1031和第四电极层1033中的另一者和第一电极层1021之间。
也就是说，当第二中间层103位于第一中间层102和第一显色层101之间时，第三电极层1031可以位于第二聚合物分散液晶层1032与第一显色层101之间，第四电极层1033可以位于第二聚合物分散液晶层1032和第三显色层1034之间，且第三显色层1034还位于第四电极层1033和第一电极层1021之间。或者，当第二中间层103位于第一中间层102和第一显色层101之间时，第四电极层1033可以位于第二聚合物分散液晶层1032与第一显色层101之间，第三电极层1031可以位于第二聚合物分散液晶层1032和第三显色层1034之间，且第三显色层1034还位于第三电极层1031和第一电极层1021之间。
可以理解的是，第一聚合物分散液晶层1022和第二聚合物分散液晶层1032所采用的材料为聚合物分散液晶((polymer dispersed liquid crystal，PDLC)，具体地，聚合物分散液晶是液晶以微米量级的小微滴分散在有机固态聚合物基体内，由于由液晶分子构成的小微滴的光轴处于自由取向，其折射率与基体的折射率不匹配，当光通过基体时被微滴强烈散射而呈不透明的乳白状态或半透明状态。施加电场可调节液晶微滴的光轴取向，当两者折射率相匹配时，呈现透明态。除去电场，液晶微滴又恢复最初的散光状态，从而进行显示。
也就是说，在PDLC体系中，向列相液晶以微米尺寸的液滴均匀分散在固态有机聚合物基体内，在不加电压下，每一个小液滴的光轴呈择优取向，而所有微粒的光轴呈无序取向状态。由于液晶是强的光学和介电各向异性的材料，其有效折射率不与基体的折射率匹配(相差较大)，入射光线可被强烈散射而呈不透明或半透明乳白态。施加外电场时，相列液晶分子光轴方向统一沿电场方向，液晶微粒的寻常折射率与基体的折射率达到了一定程度的匹配，光线可透过基体而呈透明或半透明态。除去外电场，液晶微粒在基体弹性能的作用下又恢复到最初的散射状态，因此，聚合物分散液晶膜在电场的作用下具有电控光开关特性。
另外，在本申请实施例中，第一聚合物分散液晶层1022的厚度可以大于等于1um，第一聚合物分散液晶层1022的厚度可以小于等于4um。例如，第一聚合物分散液晶层1022的厚度可以为1um，3um或4um等，本申请实施例对此并不加以限定。
第二聚合物分散液晶层1032的厚度可以大于等于1um，第二聚合物分散液晶层1032的厚度可以小于等于4um。例如，第二聚合物分散液晶层1032的厚度可以为1um，3um或4um等，本申请实施例对此并不加以限定。
这里需要说明的是，本申请涉及的数值和数值范围为近似值，受制造工艺的影响，可能会存在一定范围的误差，这部分误差本领域技术人员可以认为忽略不计。
可以理解的是，在本申请实施例中，第一显色层101、第二显色层1024以及第三显色层1034可以为有机发光层。示例性地，第一显色层101、第二显色层1024以及第三显色层1034可以为RGB有机发光层。
另外，第一显色层101、第二显色层1024以及第三显色层1034可以是真空镀膜层、丝印油墨层、紫外线(Ultraviolet，UV)转印胶水层或UV涂布层等，本申请实施例对此并不加以限定，也不限于上述示例。
需要说明的是，在本申请实施例中，第一显色层101、第二显色层1024和第三显色层1034中的至少一者上可以设有纹理结构。具体地，可以是仅第一显色层101上设有纹理结构，可以是仅第二显色层1024上设有纹理结构，可以是仅第三显色层1034上设有纹理结构，可以是第一显色层101和第二显色层1024上设有纹理结构，可以是第一显色层101和第三显色层1034上设有纹理结构，可以是第二显色层1024和第三显色层1034上设有纹理结构，也可以是第一显色层101、第二显色层1024和第三显色层1034上均设有纹理结构，本申请实施例对此并不加以限定。
容易理解的是，纹理结构可以是平面纹理，可以是立体图案浮雕纹理，也可以是平面纹理和立体图案浮雕纹理相结合。其中，平面纹理结构能够使得电池盖100的外观面具有随光而动、若隐若现的纹理效果(例如凯夫拉纹理效果)，立体图案浮雕纹理结构能够使得电池盖100的外观具有立体浮雕的图案，增强电池盖100的立体效果，给用户带来一种特殊的视觉体验。
在一种可能的实现方式中，第一电极层1021、第二电极层1023、第三电极层1031以及第四电极层1033为透明导电层。通过第一电极层1021和第二电极层1023以及第三电极层1031和第四电极层1033为透明导电层，能够避免第一电极层1021和第二电极层1023以及第三电极层1031和第四电极层1033对第一聚合物分散液晶层1022和第二聚合物分散液晶层1032的雾度和透光度变化状态产生干涉。
示例性地，第一电极层1021、第二电极层1023、第三电极层1031以及第四电极层1033所采用的材料可以为氧化铟锡(Indium tin oxide，ITO)。需要说明的是，氧化铟锡是一种混合物，由90％In2O3和10％SnO2混合而成，主要用于制作液晶显示器、平板显示器、等离子显示器、触摸屏、电子纸、有机发光二极管、太阳能电池、抗静电镀膜、透明传导镀、各种光学镀膜等。
或者，在一些实施例中，第一电极层1021、第二电极层1023、第三电极层1031以及第四电极层1033所采用的材料还可以为纳米银浆或金属氧化物等透明导电材料。
另外，需要说明的是，在本申请实施例中，第一电极层1021的厚度可以大于等于5nm，第一电极层1021的厚度可以小于等于20nm。例如，第一电极层1021的厚度可以为5nm，10nm或20nm等，本申请实施例对此并不加以限定。
同样，第二电极层1023的厚度可以大于等于5nm，第二电极层1023的厚度可以小于等于20nm。例如，第二电极层1023的厚度可以为5nm，10nm或15nm等。第三电极层1031的厚度可以大于等于5nm，第三电极层1031的厚度可以小于等于20nm。例如，第三电极层1031的厚度可以为6nm，10nm或15nm等。第四电极层1033的 厚度可以大于等于5nm，第四电极层1033的厚度可以小于等于20nm。例如，第四电极层1033的厚度可以为8nm，10nm或15nm等。
参见图7所示，在本申请实施例中，材料层10还可以包括：保护膜层104，保护膜层104位于第一显色层101背离第一基材层20的一面上。保护膜层104能够起到保护第一显色层101作用，避免外部条件或因素对第一显色层101的颜色造成影响。
需要说明的是，保护膜层104可以为透明膜层。示例性地，保护膜层104所采用的的材料可以为聚对苯二甲酸乙二醇酯(polyethylene terephthalate，PET)。PET塑料分子结构高度对称，具有一定的结晶取向能力，故而具有较高的成膜性和成性。PET塑料具有很好的光学性能和耐候性，非晶态的PET塑料具有良好的光学透明性。另外PET塑料具有优良的耐磨耗摩擦性和尺寸稳定性及电绝缘性。
或者，在一些实施例中，保护膜层104所采用的的材料还可以为环烯烃聚合物(Cyclo Olefin Polymer，COP)。COP是双环庚烯(降冰片烯)在金属茂催化剂作用下开环异位聚合，再发生加氢反应而形成非晶态均聚物，可应用于医学用光学部件和高端药品包装材料，COP具有高透明、低双折射率、低吸水、高刚性、高耐热以及水蒸汽气密性好等优点。
或者，在其它的一些实施例中，保护膜层104所采用的的材料还可以为聚酰亚胺(Polyimide，PI)。PI是综合性能最佳的有机高分子材料之一，其耐高温达400℃以上，且具有高绝缘性能。
可以理解的是，在本申请实施例中，保护膜层104还可以为其它具有保护作用的材料所形成的膜层，本申请实施例在此并不加以限定，也不限于上述示例。
需要说明的是，在本申请实施例中，保护膜层104的厚度可以大于等于15um，保护膜层104的厚度可以小于等于50um。例如，保护膜层104的厚度可以15um，25um或38um等，本申请实施例对此并不加以限定。
参见图8所示，本申请实施例提供的电池盖100还可以包括：第二基材层30，保护膜层104位于第二基材层30和第一显色层101之间。此时，第二基材层30同样能够起到保护作用，避免外部条件或因素对材料层10造成影响，例如避免外部剐蹭或摔打对材料层10造成损坏。
其中，作为一种可选的实施方式，第二基材层30可以为玻璃材质。或者，在一些其它的实施例中第二基材层30还可以为其它透明材质，本申请实施例对此并不加以限定。
可以理解的是，第一聚合物分散液晶层1022和第二聚合物分散液晶层1032在断电状态下，其内部的液晶分子构成的小微滴的光轴处于自由取向，第一聚合物分散液晶层1022和第二聚合物分散液晶层1032的折射率与第二基材层30的折射率不匹配，当光通过第二基材层30时被微滴强烈散射，因而使得第一聚合物分散液晶层1022和第二聚合物分散液晶层1032呈不透明的乳白状态或半透明状态。
第一聚合物分散液晶层1022和第二聚合物分散液晶层1032在通电状态下，电场可调节第一聚合物分散液晶层1022和第二聚合物分散液晶层1032内部的液晶微滴的光轴取向，当第一聚合物分散液晶层1022和第二聚合物分散液晶层1032的折射率与第二基材层30的折射率相匹配时，第一聚合物分散液晶层1022和第二聚合物分散液 晶层1032呈现透明态，这样即可通过第一聚合物分散液晶层1022和第二聚合物分散液晶层1032实现电池盖100的颜色变化。
另外，作为一种可选的实施方式，第二基材层30与保护膜层104之间可以通过粘接层40相连。其中，粘接层40可以为透明材质所形成的粘接层。例如，第二基材层30与保护膜层104之间可以通过光学胶(Optically Clear Adhesive，OCA)相连。
需要说明的是，OCA光学胶是用于胶结透明光学元件(例如镜头等)的特种粘胶剂。OCA光学胶具有无色透明、光透过率在90％以上、胶结强度良好，可在室温或中温下固化，且有固化收缩小等特点。OCA光学胶是触摸屏中的重要原材料之一，是将光学亚克力胶做成无基材，然后在上下底层，再各贴合一层离型薄膜，是一种无基体材料的双面贴合胶带。
可以理解的是，在本申请实施例中，粘接层40的厚度可以大于等于15um，粘接层40的厚度可以小于等于50um。例如，粘接层40的厚度可以15um，25um或50um等，本申请实施例对此并不加以限定。
参见图9所示，本申请实施例提供的电池盖100还可以包括：真空镀层50，真空镀层50位于至少一个中间层和第一基材层20之间。其中，真空镀层50能够起到增加外观颜色质感的作用。
需要说明的是，在本申请实施例中，真空镀层50可以为不导电层。示例性地，真空镀层50所采用的的材料可以为铟锡或者硅钛氧等，本申请实施例对此并不加以限定。
可以理解的是，在本申请实施例中，真空镀层50的厚度可以大于等于50nm，真空镀层50的厚度可以小于等于600nm。例如，真空镀层50的厚度可以80nm，200nm或400nm等，本申请实施例对此并不加以限定。
在本申请实施例的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应作广义理解，例如，可以是固定连接，也可以是通过中间媒介间接相连，可以是两个元件内部的连通或者两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请实施例中的具体含义。
在本申请实施例或者暗示所指的装置或者元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请实施例的限制。在本申请实施例的描述中，“多个”的含义是两个或两个以上，除非是另有精确具体地规定。
本申请实施例的说明书和权利要求书及上述附图中的术语“第一”、“第二”、“第三”、“第四”等(如果存在)是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本申请实施例的实施例例如能够以除了在这里图示或描述的那些以外的顺序实施。此外，术语“可以包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可可以包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
最后应说明的是：以上各实施例仅用以说明本申请实施例的技术方案，而非对其限制，尽管参照前述各实施例对本申请实施例进行了详细的说明，本领域的普通技术 人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换，而这些修改或者替换，并不使相应技术方案的本质脱离本申请实施例各实施例技术方案的范围。

Claims (23)

  1. 一种电池盖，其特征在于，至少包括：
    第一基材层以及设置在所述第一基材层上的材料层；
    所述材料层至少包括：第一显色层以及至少一个中间层，所述至少一个中间层位于所述第一显色层和所述第一基材层之间；
    所述至少一个中间层包括：第一中间层；第一中间层包括层叠设置的：第一电极层、第一聚合物分散液晶层、第二电极层以及第二显色层，其中，所述第二显色层所显示的颜色与所述第一显色层所显示的颜色不相同；
    所述第一电极层和所述第二电极层中的其中一者位于所述第一聚合物分散液晶层与所述第一显色层之间，所述第一电极层和所述第二电极层中的另一者位于所述第一聚合物分散液晶层和所述第二显色层之间；
    且所述第二显色层还位于所述第一电极层和所述第二电极层中的另一者和所述第一基材层之间。
  2. 根据权利要求1所述的电池盖，其特征在于，还包括：至少一个电压控制电路；所述至少一个电压控制电路包括：第一电压控制电路；所述第一中间层中的所述第一电极层和所述第二电极层均与所述第一电压控制电路电连接。
  3. 根据权利要求1或2所述的电池盖，其特征在于，所述第一电极层和所述第二电极层在断电状态下，所述第一聚合物分散液晶层的透光率低于20％；
    所述第一电极层和所述第二电极层在通电状态下，所述第一聚合物分散液晶层的透光率高于70％。
  4. 根据权利要求1-3任一所述的电池盖，其特征在于，所述至少一个中间层还包括：第二中间层；所述第二中间层位于所述第一中间层和所述第一基材层之间，或者，所述第二中间层位于所述第一中间层和所述第一显色层之间；
    第二中间层包括层叠设置的：第三电极层、第二聚合物分散液晶层、第四电极层以及第三显色层，其中，所述第三显色层所显示的颜色与所述第一显色层所显示的颜色以及所述第二显色层所显示的颜色均不相同；
    所述第三电极层和所述第四电极层分别位于所述第二聚合物分散液晶层的两侧，所述第三显色层位于所述第三电极层和所述第四电极层中的任意一者背离所述第二聚合物分散液晶层的一面上。
  5. 根据权利要求4所述的电池盖，其特征在于，所述至少一个电压控制电路还包括：第二电压控制电路；所述第二中间层中的所述第三电极层和所述第四电极层均与所述第二电压控制电路电连接。
  6. 根据权利要求4或5所述的电池盖，其特征在于，所述第三电极层和所述第四电极层在断电状态下，所述第二聚合物分散液晶层的透光率低于20％；
    所述第三电极层和所述第四电极层在通电状态下，所述第二聚合物分散液晶层的透光率高于70％。
  7. 根据权利要求4-6任一所述的电池盖，其特征在于，所述第一电极层位于所述第一聚合物分散液晶层与所述第一显色层之间，所述第二电极层位于所述第一聚合物分 散液晶层和所述第二显色层之间。
  8. 根据权利要求7所述的电池盖，其特征在于，所述第二中间层位于所述第一中间层和所述第一基材层之间时，所述第三电极层和所述第四电极层中的其中一者位于所述第二聚合物分散液晶层与所述第二显色层之间，所述第三电极层和所述第四电极层中的另一者位于所述第二聚合物分散液晶层和所述第三显色层之间；
    且所述第三显色层还位于所述第三电极层和所述第四电极层中的另一者和所述第一基材层之间；
    或者，所述第二中间层位于所述第一中间层和所述第一显色层之间时，所述第三电极层和所述第四电极层中的其中一者位于所述第二聚合物分散液晶层与所述第一显色层之间，所述第三电极层和所述第四电极层中的另一者位于所述第二聚合物分散液晶层和所述第三显色层之间；
    且所述第三显色层还位于所述第三电极层和所述第四电极层中的另一者和所述第一电极层之间。
  9. 根据权利要求4-8任一所述的电池盖，其特征在于，所述第一聚合物分散液晶层的厚度大于等于1um，所述第一聚合物分散液晶层的厚度小于等于4um；
    所述第二聚合物分散液晶层的厚度大于等于1um，所述第二聚合物分散液晶层的厚度小于等于4um。
  10. 根据权利要求4-9任一所述的电池盖，其特征在于，所述第一显色层、所述第二显色层以及所述第三显色层为有机发光层。
  11. 根据权利要求4-10任一所述的电池盖，其特征在于，所述第一显色层、所述第二显色层和所述第三显色层中的至少一者上设有纹理结构。
  12. 根据权利要求4-11任一所述的电池盖，其特征在于，所述第一电极层、所述第二电极层、所述第三电极层以及所述第四电极层为透明导电层。
  13. 根据权利要求12所述的电池盖，其特征在于，所述第一电极层、所述第二电极层、所述第三电极层以及所述第四电极层所采用的材料为氧化铟锡。
  14. 根据权利要求4-13任一所述的电池盖，其特征在于，所述第一电极层的厚度大于等于5nm，所述第一电极层的厚度小于等于20nm；
    所述第二电极层的厚度大于等于5nm，所述第二电极层的厚度小于等于20nm；
    所述第三电极层的厚度大于等于5nm，所述第三电极层的厚度小于等于20nm；
    所述第四电极层的厚度大于等于5nm，所述第四电极层的厚度小于等于20nm。
  15. 根据权利要求1-14任一所述的电池盖，其特征在于，所述材料层还包括：保护膜层；所述保护膜层位于所述第一显色层背离所述第一基材层的一面上。
  16. 根据权利要求15所述的电池盖，其特征在于，所述保护膜层所采用的的材料为聚对苯二甲酸乙二醇酯。
  17. 根据权利要求15或16所述的电池盖，其特征在于，所述保护膜层的厚度大于等于25um，所述保护膜层的厚度小于等于50um。
  18. 根据权利要求15-17任一所述的电池盖，其特征在于，还包括：第二基材层；所述保护膜层位于所述第二基材层和所述第一显色层之间。
  19. 根据权利要求18所述的电池盖，其特征在于，所述第二基材层与所述保护膜层之间通过光学胶相连。
  20. 根据权利要求1-19任一所述的电池盖，其特征在于，还包括：真空镀层；所述真空镀层位于所述至少一个中间层和所述第一基材层之间。
  21. 根据权利要求20所述的电池盖，其特征在于，所述真空镀层为不导电层。
  22. 根据权利要求21所述的电池盖，其特征在于，所述真空镀层所采用的的材料为铟锡或者硅钛氧。
  23. 一种电子设备，其特征在于，至少包括：显示屏、中框以及上述权利要求1-22任一所述的电池盖，所述显示屏和所述电池盖分别位于所述中框的两侧。
PCT/CN2022/091042 2021-08-12 2022-05-05 电池盖及电子设备 WO2023015975A1 (zh)

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