WO2021238450A1 - 柔性显示装置 - Google Patents

柔性显示装置 Download PDF

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Publication number
WO2021238450A1
WO2021238450A1 PCT/CN2021/086289 CN2021086289W WO2021238450A1 WO 2021238450 A1 WO2021238450 A1 WO 2021238450A1 CN 2021086289 W CN2021086289 W CN 2021086289W WO 2021238450 A1 WO2021238450 A1 WO 2021238450A1
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WO
WIPO (PCT)
Prior art keywords
heat
heat dissipation
heat sink
flexible display
display device
Prior art date
Application number
PCT/CN2021/086289
Other languages
English (en)
French (fr)
Inventor
王浩然
刘小林
朱红
张雄南
张子予
Original Assignee
京东方科技集团股份有限公司
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
Application filed by 京东方科技集团股份有限公司 filed Critical 京东方科技集团股份有限公司
Priority to JP2021568596A priority Critical patent/JP2023527593A/ja
Priority to US17/435,124 priority patent/US20220166082A1/en
Priority to EP21810268.9A priority patent/EP3993138B1/en
Publication of WO2021238450A1 publication Critical patent/WO2021238450A1/zh

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/623—Portable devices, e.g. mobile telephones, cameras or pacemakers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1635—Details related to the integration of battery packs and other power supplies such as fuel cells or integrated AC adapter
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1641—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being formed by a plurality of foldable display components
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1652—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being flexible, e.g. mimicking a sheet of paper, or rollable
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/20—Cooling means
    • G06F1/203—Cooling means for portable computers, e.g. for laptops
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/647—Prismatic or flat cells, e.g. pouch cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
    • 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/105—Pouches or flexible bags
    • 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/131—Primary casings; Jackets or wrappings characterised by physical properties, e.g. gas permeability, size or heat resistance
    • H01M50/136—Flexibility or foldability
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/87—Arrangements for heating or cooling
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/8794—Arrangements for heating and cooling
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K77/00—Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80
    • H10K77/10—Substrates, e.g. flexible substrates
    • H10K77/111—Flexible substrates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K2102/00—Constructional details relating to the organic devices covered by this subclass
    • H10K2102/301—Details of OLEDs
    • H10K2102/311—Flexible OLED
    • 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
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/549—Organic PV cells
    • 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 present disclosure relates to the field of display technology, and in particular, to a flexible display device.
  • the purpose of the present disclosure is to provide a flexible display device to solve one or more problems in the prior art.
  • a flexible display device including:
  • the flexible battery is arranged on the side of the flexible display panel away from the light-emitting surface;
  • a heat dissipation assembly includes a first heat dissipation fin, the first heat dissipation fin is disposed on any side of the flexible battery facing or away from the flexible display panel, and the first heat dissipation fin has a bendable area.
  • the bendable area of the first heat sink has a through structure in the thickness direction.
  • the first heat sink is a one-piece structure, and the bendable area of the first heat sink includes a plurality of patterned openings, and the openings constitute all Narrated through structure.
  • the bendable area of the first heat sink includes a plurality of heat sink bars arranged in parallel, and any two adjacent heat sink bars have an interval, and the interval
  • the through structure is constituted.
  • the first heat sink further includes a plurality of connecting pieces, the connecting pieces connect two adjacent heat sinks, and the connecting piece is connected to the two adjacent heat sinks.
  • the strips are pivotally connected, so that two adjacent heat dissipation strips can rotate relative to the connecting piece.
  • At least one long side of the heat dissipation bar is provided with at least one first protrusion facing the adjacent heat dissipation bar.
  • a second protrusion is provided on the long side of the heat dissipation bar at a position corresponding to the first protrusion of the adjacent heat dissipation bar, and the second protrusion is
  • the protruding portion has a notch that matches the shape of the first protruding portion, so that the notch and the first protruding portion can be attached to each other.
  • the first heat dissipation fin further includes a heat dissipation pipe, and the heat dissipation pipe is connected to each of the heat dissipation bars.
  • the first heat sink further includes a base layer, the heat sink is bonded to one side of the base layer, and the other side of the base layer is bonded to the flexible Battery or the flexible display panel.
  • the width L of the heat dissipation bar satisfies 0.05mm ⁇ L ⁇ 20mm
  • the width h of the interval between two adjacent heat dissipation bars satisfies 0.1mm ⁇ h ⁇ 10mm.
  • a through hole is opened on the heat dissipation bar.
  • the material of the first heat sink is metal.
  • the heat dissipation assembly further includes a second heat dissipation fin, and the second heat dissipation fin is provided on the other side of the flexible battery facing or away from the flexible display panel.
  • the second heat sink has a bendable area, and the bendable area of the second heat sink corresponds to the bendable area of the heat insulation layer and the bendable area of the first heat sink.
  • the structure of the second heat sink is the same as or different from that of the first heat sink, and the material of the second heat sink is the same as that of the first heat sink. Same or different.
  • the heat dissipation assembly further includes a heat insulation layer provided between the heat dissipation sheet close to the flexible display panel and the flexible display panel.
  • the thermal layer has a bendable area, and the bendable area of the heat insulation layer corresponds to the bendable area of the first heat sink.
  • the material of the heat insulation layer is rubber, silica gel, porous material, polyurethane, acrylic, or an organic film layer containing a metal coating.
  • the thickness of the first heat sink, the heat insulation layer, and the second heat sink does not exceed 1 mm.
  • the heat dissipating assembly further includes a heat conducting member, the heat conducting member is provided between the first heat sink and the second heat sink and connects the first heat sink and the second heat sink.
  • the heat-conducting element is located on at least one side of the flexible battery and is spaced apart from the flexible battery.
  • the flexible display device further includes a heat dissipation unit connected to at least one of the first heat dissipation fin, the second heat dissipation fin, or the heat conducting member.
  • the flexible battery includes a flexible casing and a positive electrode, a negative electrode, an electrolyte, an insulating layer, a positive electrode current collector, and a negative electrode current collector provided in the flexible housing. It is arranged opposite to the negative electrode, the insulating layer is located between the positive electrode and the negative electrode, the positive electrode current collector is located on the side of the positive electrode away from the insulating layer, and the negative electrode current collector is located on the side of the negative electrode away from the insulating layer.
  • the electrolyte is distributed between the positive electrode and the negative electrode.
  • the flexible display device of the present disclosure includes a flexible display panel, a flexible battery, and a heat dissipation component.
  • the heat dissipation component is arranged between the flexible display panel and the flexible battery and has a bendable area, thereby not only realizing the flexibility of the entire display device, but also solving The heat dissipation problem of the flexible battery is avoided, the battery heat is prevented from affecting the display panel, and the battery heat can be uniformized from time to time, and the performance deterioration caused by the partial overheating of the battery is prevented.
  • FIG. 1 is a schematic diagram of the structure of a flexible battery in this embodiment
  • FIG. 2 is a schematic diagram of the structure of the flexible display panel of the embodiment
  • FIG. 3 is a schematic diagram of the structure of the heat dissipation assembly of the first embodiment
  • FIG. 4 is a schematic diagram of the first patterned opening when the first heat sink has a monolithic structure
  • FIG. 5 is a schematic diagram of the second type of patterned openings when the first heat sink has a monolithic structure
  • FIG. 6 is a schematic diagram of a third type of patterned opening when the first heat sink has a monolithic structure
  • FIG. 7 is a schematic diagram of the structure of the first heat sink including the heat sink
  • Figure 8 is a schematic diagram of the bonding structure of the heat sink
  • FIG. 9 is a schematic diagram of the structure of the heat dissipation bar including the first protruding portion
  • Fig. 10 is a schematic diagram of various shapes of the first protrusion
  • FIG. 11 is a schematic diagram of the structure of the heat dissipation bar including a first protrusion and a second protrusion;
  • FIG. 12 is a schematic diagram of a structure in which the first heat sink includes a heat pipe
  • Figure 13 is a schematic view of the structure of the heat sink connected by a connecting piece
  • Figure 14 is a schematic view of the structure of the heat sink connected by another connector
  • FIG. 15 is a schematic diagram of a structure in which through holes are provided on the heat sink.
  • FIG. 16 is a schematic structural diagram of a non-bending area provided on the first heat sink
  • FIG. 17 is a schematic diagram of the structure of the heat dissipation assembly of the second embodiment.
  • FIG. 18 is a schematic diagram of the structure of the heat dissipation assembly of the third embodiment.
  • FIG. 19 is a schematic diagram of the structure of the heat dissipation assembly of the fourth embodiment.
  • a flexible display device which includes a flexible display panel, a flexible battery, and a heat dissipation component.
  • the flexible display panel is arranged on a side of the flexible display panel away from the light-emitting surface.
  • the sheet faces or faces away from either side of the flexible display panel, and the first heat sink has a bendable area.
  • the display panel, the battery, and the first heat sink of the present disclosure all adopt a flexible structure, and each component can be bent or folded, realizing the flexibility of the whole machine.
  • the first heat sink is located on either side of the flexible battery, which can absorb the heat generated by the flexible battery, reduce the battery temperature, and make the battery temperature uniform To avoid adverse effects on the display panel.
  • the basic structure of the flexible battery of the embodiment of the present disclosure is shown in FIG. Among them, the positive electrode 22 and the negative electrode 23 are arranged oppositely, and the separator 26 is arranged between the positive electrode 22 and the negative electrode 23 to isolate the positive electrode 22 and the negative electrode 23 to avoid direct contact between the active materials on the two electrodes and cause a short circuit inside the battery 2.
  • the positive electrode current collector 24 is in contact with the positive electrode 22 and is used to transmit the current of the positive electrode 22 to the external circuit;
  • the negative electrode current collector 25 is in contact with the negative electrode 23 and is used to transmit the current of the external circuit to the negative electrode 23.
  • the electrolyte is omitted in the figure, those skilled in the art know that the electrolyte should be distributed between the positive electrode 22 and the negative electrode 23 in order to transfer ions.
  • the charging process of the flexible battery 2 is: the lithium ions generated by the positive electrode 22 enter the electrolyte from the positive electrode 22, then enter the electrolyte through the micropores on the diaphragm 26, and finally move to the negative electrode 23, and the negative electrode 23.
  • the electrons are combined together.
  • the discharge process is as follows: during discharge, electrons move from the negative electrode 23 to the positive electrode 22 through the external circuit, and lithium ions enter the electrolyte from the negative electrode 23, then enter the electrolyte through the micropores on the diaphragm 26, and finally move to the positive electrode 22, and the positive electrode 22. 22 electrons are combined together.
  • the positive electrode 22 can be flexible by arranging patterned openings 10 on the solid positive electrode 22, and the openings 10 are used to buffer the strain generated during bending and twisting.
  • the material of the positive electrode 22 differs according to the type of the flexible battery 2, for example, lithium cobalt oxide, lithium manganate, lithium iron phosphate and the like used in the lithium battery 2.
  • the material of the negative electrode 23 can be graphite powder or graphene, which is easier to achieve flexibility, and it can also be achieved by providing patterned openings 10 on the negative electrode 23 sheet.
  • the diaphragm 26 may be a polymer film, and may have a single-layer structure or a multilayer structure.
  • polymer film materials such as polyethylene, polypropylene, etc.
  • polyethylene, polypropylene, etc. can be used.
  • a composite double-layer structure such as polypropylene/polyethylene or, for example, polypropylene/polyethylene/polypropylene, can be used.
  • Such materials are flexible and can be made flexible.
  • the positive electrode current collector 24 and the negative electrode current collector 25 can use conventional metal current collector materials, such as copper, aluminum, stainless steel, etc., or use graphene-based conductive films and other higher conductivity materials, and use this film as a current collector to assemble flexible batteries. 2.
  • the flexible housing 21 can be made of materials such as aluminum plastic film or copper plastic film provided with conventional or patterned openings 10, and can also be a flexible polymer material. Most of the electrolyte is liquid or gel-like, which is inherently flexible; solid electrolytes can also be used.
  • openings 10 provided for the internal components of the flexible battery for bending and folding should correspond.
  • the basic structure of the flexible display panel of this embodiment is shown in FIG. 2.
  • the display panel includes a substrate 11 on which a driving transistor and a driving circuit (not shown in the figure) are provided.
  • the substrate 11 needs to use a flexible material, and the flexible material may be a polymer material, such as polyethylene (PE), polypropylene (PP), polyimide (PI), polyethylene terephthalate Ester (PET), polyethylene naphthalate (PEN), etc.
  • the flexible substrate 11 is also provided with a patterned opening 10 structure to relieve the stress of curling and bending.
  • One side of the substrate 11 is provided with a pixel defining layer 12 for defining the opening area of each sub-pixel, and each opening area is provided with a light-emitting device.
  • the light-emitting device may be an organic electroluminescence device, specifically including an anode layer 13, an organic Film layers such as the luminescent material layer 14 and the cathode layer 15 can of course further include a hole transport layer, an electron transport layer, an electron injection layer, a hole injection layer and other film layers. This application does not specifically limit this.
  • the display panel 1 may further include an encapsulation layer, and the encapsulation layer may be encapsulated by a film to achieve flexibility.
  • the first heat sink 3 is located between the flexible display panel 1 and the flexible battery 2, and the first heat sink 3 is disposed on one side of the battery 2 for absorbing
  • the heat radiated from the side of the flexible battery 2 toward the display panel 1 reduces the temperature of the battery 2 and prevents the local temperature of the battery 2 from being too high, so as to avoid affecting the display panel 1.
  • the first heat sink 3 has a bendable area, so as to cooperate with the whole device to achieve curling or bending.
  • the material of the first heat sink 3 may also be an organic material with high thermal conductivity such as graphene.
  • graphene when graphene is selected for the first heat sink 3, since the graphene itself has high flexibility and can be curled or bent, it can be a whole piece structure, and the whole can be regarded as a bendable area.
  • a thinner graphene heat sink can achieve good thermal conductivity, and the overall thickness of the display device can be controlled within an ideal range.
  • the first heat sink 3 made of graphene material can be fixed to the display panel 1 and the battery 2 by bonding.
  • the material of the first heat sink 3 may also be a metal material, such as silver, copper, aluminum, gold, iron, tin, etc., or an alloy material of the foregoing metals.
  • the above-mentioned metal materials can not only play a role in heat dissipation, but also play a better supporting role in the flexible display panel, thereby improving the anti-extrusion ability of the flexible display panel. Due to the strong rigidity of metal materials, in order to achieve ideal bending performance, it is necessary to form a through structure in the thickness direction in the bendable area of the material to release the stress during bending of the material and improve the bending performance. At the same time, it can meet the requirements of lightweight design.
  • the through structure can have many forms.
  • the first heat sink 3 is a one-piece structure, and the bendable area of the first heat sink 3 is provided with patterned openings 10, that is, a through structure opening on the first heat sink 3 is formed.
  • the hole 10 can buffer the stress received when the heat sink is bent. It can be understood that the bendable area of the first heat dissipation sheet 3 should correspond to the bendable area of the flexible display panel 1 or the flexible battery 2.
  • the patterned openings 10 may be as shown in FIGS. 4-6. In the first structure shown in FIG. 4, the patterned openings 10 are hexagons arranged in an array; in the first structure shown in FIG. In the two structures, the patterned openings 10 are circles arranged in an array; in the third structure shown in FIG.
  • the patterned openings 10 are rectangles with semicircular ends arranged in an array.
  • the third structure is the preferred structure, and the opening form has a better stress dispersion effect and better bendability.
  • the first heat sink 3 made of a whole piece of metal material can be fixed to the display panel 1 and the battery 2 by mechanical connection, such as clamping, riveting, etc., or it can be connected to the display panel 1 and the battery 2 by means of tape, glue, etc. Glue together.
  • the first heat sink 3 may not be a one-piece structure.
  • the first heat sink 3 includes a plurality of heat sink bars 31 arranged in parallel, and there is an interval between any two adjacent heat sink bars 31, and the interval forms a through structure on the first heat sink 3. Due to the spacing, the adjacent heat dissipation strips 31 can be folded relative to each other, so that the entire first heat dissipation fin 3 is bendable as a whole.
  • the first heat dissipation fin 3 of this structure is The bending effect is better, and the stress influence of the metal parts on the flexible display module can be further reduced, and the reliability of the display panel's flexibility is higher.
  • the heat sink 31 and its interval are at least located in the bendable area of the first heat sink 3.
  • the structure of the heat sink may also be provided in the non-bending area to dissipate the heat of the flexible battery or to support the display panel.
  • the arrangement direction of the heat dissipation strips 31 should be consistent with the bending direction to achieve bending. It should be noted that the parallel arrangement of the multiple heat dissipation bars described in this application allows the actual product angle error due to process accuracy and other reasons to exist.
  • the heat dissipation strip 31 can be bonded to a base layer 37 first, and then the base layer 37 is bonded to the flexible display panel or the flexible battery. Of course, it can also be fixed on the flexible battery or flexible display panel by mechanical connection, such as clamping, riveting, etc.
  • the heat dissipation strip 31 may be pasted on the base layer by bonding, the heat dissipation strip 31 may be displaced in the bending direction (ie, the width direction) during multiple bending processes, resulting in uniform heat conduction of the first heat sink. And the supporting capacity is reduced.
  • At least one first protrusion 301 facing the adjacent heat dissipation bar 31 is provided on at least one long side of the heat dissipation bar 31.
  • the first protrusion 301 can abut on the adjacent heat sink 31 to limit itself or the adjacent heat sink 31, so that a fixed interval is always maintained between the two to avoid displacement due to displacement. The change is too large, resulting in a decrease in the uniformity of heat conduction and the supporting capacity.
  • the first protruding portion 301 may be provided on only one long side of the heat dissipation bar 31 or may be provided on two long sides of the heat dissipation bar 31.
  • the number of the first protrusion 301 on each heat sink 31 can be one or more.
  • the positions of the first protrusions 301 on two adjacent heat dissipation bars 31 may or may not correspond to each other.
  • a plurality of heat dissipation strips 31 are arranged horizontally and spaced apart, and a first rightward protrusion 301 is provided on the right side of each heat dissipation strip 31, and each first protrusion The part 301 is located on the same horizontal line.
  • two upper and lower rightward first protrusions 301 are provided on the right side of each heat sink 31, and the upper first protrusions 301 are located on the same horizontal line.
  • the lower first protrusions 301 are located on the same horizontal line.
  • each heat dissipation strip 31 is provided with a leftward first protruding portion 301, and the right side is provided with a rightward first protruding portion 301, each The first protrusions 301 are located on the same horizontal line. Therefore, the first protrusions 301 of two adjacent heat dissipation bars 31 are arranged oppositely.
  • the left and right sides of each heat sink 31 are provided with two upper and lower first protrusions 301, and the upper first protrusions 301 are located on the same horizontal line.
  • the first protrusions 301 located below are located on the same horizontal line.
  • each heat dissipation strip 31 is provided with a leftward first protruding portion 301, and the right side is provided with a rightward first protruding portion 301, each The first protrusions 301 to the left are located on a horizontal line, and the first protrusions 301 to the right are located on another horizontal line. Therefore, the first protrusions 301 of two adjacent heat dissipation bars 31 are staggered up and down.
  • the left and right sides of each heat sink 31 are each provided with two upper and lower first protrusions 301, and each heat sink 31 has four first protrusions. Staggered around 301.
  • each heat sink 31 is each provided with three upper, middle and lower first protrusions 301, and the first protrusions 301 of each heat sink 31 are distributed On three horizontal lines.
  • the plurality of heat dissipation bars 31 can be arranged in multiple groups in the longitudinal direction of the figure.
  • the shape of the first protrusion 301 in the above-mentioned specific embodiments is all semicircular as an example. It is understandable that the shape of the first protrusion 301 can also be any other shape, such as shown in (a) in FIG. 10 The rectangle shown in Figure 10 (b) shows the trapezoid.
  • the long side of the heat dissipation bar 31 is further provided with a second protrusion 302 at a position corresponding to the first protrusion 301 of the adjacent heat dissipation bar 31.
  • the two protrusions 302 have a notch 3021, and the notch 3021 matches the shape of the first protrusion 301, so that when the two heat dissipation bars 31 are displaced, the notch 3021 and the first protrusion 301 can be engaged to prevent the heat dissipation bars 31 Move further.
  • the notch 3021 can enclose the first protrusion 301, and can also prevent the heat dissipation strip 31 from moving in the longitudinal direction in the figure, that is, it can limit the heat dissipation strip 31 in both the horizontal and vertical directions. Better results.
  • the shapes of the first protrusion 301 and the notch 3021 are both trapezoidal.
  • the shapes of the first protrusion 301 and the notch 3021 are both semi-elliptical.
  • the shape of the second protrusion 302 includes but is not limited to the rectangular protrusion shown in the figure, and may also be of other shapes.
  • each heat dissipation strip is provided with three first protrusions 301 and second protrusions 302.
  • the first heat sink 3 is further provided with a heat dissipation pipe 36, and the heat dissipation pipe 36 is used to connect the heat dissipation bars 31 together to reduce the heat of the heat dissipation bars 31.
  • Conducting conduction improves the uniformity of heat conduction of the entire first heat sink 3, and makes the heat distribution on the entire first heat sink 3 more uniform.
  • the adjacent heat dissipation bars 31 may be connected as a whole by the connecting piece 33.
  • the connecting piece 33 and the heat dissipation bar 31 are preferably pivotally connected.
  • the two adjacent heat dissipation strips 31 can still be folded relative to each other.
  • the connecting member 33 may be a bar-shaped rod provided at the ends of two adjacent heat-dissipating bars 31.
  • the extending direction of the bar-shaped bars is perpendicular to the extending direction of the heat-dissipating bars 31.
  • Mounting holes (not shown in the figure) are provided at the opposite ends of the member 33.
  • a horizontally arranged shaft 34 penetrates through the mounting holes of the heat sink 31 and the connecting member 33 to form a pivot connection.
  • the heat sink 31 Both the connecting member 33 and the connecting member 33 can rotate around the shaft 34, so that two adjacent heat dissipation bars can rotate relative to the connecting member, so that the two heat dissipation bars 31 can be bent.
  • the connecting member 33 may also be a rotating shaft 35 arranged in parallel with the heat sink 31.
  • the rotating shaft 35 is located between two adjacent heat sinks 31.
  • the end of the heat sink 31 is provided with an extension section containing a mounting hole. (The mounting holes are not shown in the figure).
  • the connecting member 33 may also have other structures, for example, it may also be a connecting wire that passes through the through holes of each heat dissipation bar to connect the heat dissipation bars in series, which will not be listed here. In this structure, even if the interval between two adjacent heat dissipation bars 31 is small, the first heat dissipation fin 3 can still be bent through the pivoted structure. Since the heat dissipation strips 31 are connected as a whole by the connecting piece 33, the structure is more stable.
  • the material of the connecting member is preferably a metal or other material with a heat-conducting function, so that the heat on the heat dissipation strips 31 can be transferred to each other through the connecting member, so that the heat distribution of the entire first heat sink 3 is more uniform.
  • the width and spacing of the heat dissipation strips 31 have a significant impact on the bending effect, heat dissipation effect, and support effect. If the spacing is too large, the width of the heat dissipation strips 31 is too narrow, which will lead to poor heat dissipation and poor support effects. , If the interval is too small, the width of the heat dissipation strip 31 is too wide, it will affect the bending effect.
  • the width L of the heat sink 31 satisfies 0.05mm ⁇ L ⁇ 20mm.
  • L can take values of 0.05nm, 0.1nm, 1nm, 2nm, 5nm, 10nm, 15nm, 20nm.
  • the width h of the interval between two adjacent heat dissipation bars 31 satisfies 0.1mm ⁇ h ⁇ 10mm.
  • h can take values of 0.1nm, 1nm, 2nm, 5nm, 8nm, and 10nm.
  • the bending effect of the first heat sink is smoother, the heat dissipation effect is ideal, and the structural stability and support effect is better.
  • the width L of the heat dissipation bar 31 is the width of the portion other than the first protrusion 301, that is, the minimum width of the heat dissipation bar.
  • the width h of the interval between two adjacent heat dissipation bars 31 is the distance between the parts of the two heat dissipation bars 31 excluding the first protrusion 301, that is, the maximum distance between two adjacent heat dissipation bars 31.
  • the size of the first protrusion 301 can be set according to the structure and the distance between the heat dissipation bars 31.
  • the heat dissipation strip 31 is also provided with through holes 32.
  • the through holes 32 make the heat dissipation strip 31 itself bendable, which further improves the first heat sink. Bendable performance.
  • the first heat sink adopts a sheet-like structure or a 31-like structure of the heat sink
  • its thickness is preferably no more than 1mm. This thickness can meet the heat dissipation requirements, and at the same time, the thickness of the entire device is not significantly increased, which is conducive to achieving a lighter and thinner configuration. .
  • the first heat sink 3 may include a non-bending area 30, and the non-bending area 30 may be a whole non-bendable structural layer.
  • the first heat sink 3 in the area corresponding to the non-bendable motherboard IC of the display panel, the first heat sink 3 can be set as a whole metal layer, and the other bendable area is a heat sink structure.
  • first heat sink 3 in the heat dissipation assembly shown in FIG. 3 has been described in detail above.
  • the first heat sink 3 may also be located on the side of the flexible battery 2 facing away from the flexible display panel 1 to absorb the heat emitted from the side of the flexible battery 2 facing away from the display panel 1 and also reduce The temperature of the battery 2 prevents the local temperature of the battery 2 from being too high.
  • the heat dissipation assembly further includes a heat insulation layer 4, and the first heat dissipation member 3 and the heat insulation layer 4 are both provided on the flexible display panel 1 and the flexible battery 2. In between, the heat insulation layer 4 is located between the first heat sink 3 and the flexible display panel 1.
  • the heat insulation layer 4 is in a sheet shape as a whole, and it also has a bendable area.
  • the function of the heat insulation layer 4 is to isolate the heat between the first heat sink 3 and the flexible display panel 1 to shield the thermal effect of the high temperature of the first heat sink 3 on the flexible display panel 1. Therefore, the thermal insulation layer 4 should be made of materials with lower thermal conductivity, such as organic materials such as rubber. At the same time, the heat insulation layer 4 should also have a bendable area so that it can also be bent or folded to match the overall structure of the display device. It is understandable that the bendable area of the thermal insulation layer 4 should correspond to the bendable area of the first heat sink 3, the flexible display panel 1 or the flexible battery 2. Then, a patterned opening 10 structure can also be provided on the heat insulation layer 4, or a material with higher flexibility can be selected. On the other hand, the heat-insulating layer 4 may further use an insulating material to prevent the current leaked from the battery 2 from being conducted to the display panel 1 via the first heat sink 3 and affecting the display panel 1.
  • the material of the heat insulation layer 4 is preferably rubber, silica gel, polyurethane, acrylic; or porous materials such as foam materials and fiber materials.
  • the hollow structure of the porous material can be filled with air or other media; Heat-reflective materials, such as gold-plated, silver-plated polyimide film.
  • the fixing method of the heat insulation layer 4 and the first heat sink 3 or the display panel 1 may be a mechanical connection method or an adhesive method.
  • the heat dissipation assembly further includes a second heat dissipation fin 5.
  • the first heat dissipation fin 3 and the heat insulation layer 4 are both provided on the flexible display panel 1 and the flexible battery 2, the heat insulation layer 4 is located between the first heat sink 3 and the flexible display panel 1, and the second heat sink 5 is located on the side of the flexible battery 2 away from the flexible display panel 1, and the whole is covered in a sheet shape.
  • One side of the flexible battery 2 is used to absorb the heat emitted by the side of the flexible battery 2 away from the display panel 1, so that the entire device has a more ideal heat dissipation performance.
  • the second heat sink 5 has a bendable area.
  • the bendable area of the second heat sink 5 corresponds to the bendable area of the first heat sink 3, the heat insulation layer 4, the flexible battery 2, and the flexible display panel 1.
  • the first heat sink 3 is located on the side of the flexible battery 2 away from the flexible display panel 1
  • the second heat sink 5 is located on the side of the flexible battery 2 facing the flexible display panel 1, that is, on the flexible battery 2.
  • the heat insulation layer may be arranged between the second heat sink 5 and the flexible display panel 1 to block the influence of the high temperature of the second heat sink 5 on the flexible display panel 1.
  • the heat insulation layer can always be arranged between the heat sink close to the flexible display panel and the flexible display panel.
  • the structure of the second radiating fin 5 may be the same as or different from that of the first radiating fin 3.
  • the material of the second heat sink 5 may be the same as or different from that of the first heat sink 3.
  • the first heat sink adopts the metal heat sink structure shown in FIG. 9 and the second heat sink adopts the entire graphene film layer; or the first heat sink adopts the metal patterned via structure of FIG. 6, and the second heat sink uses the metal patterned via structure shown in FIG.
  • the sheet adopts the metal heat sink structure shown in FIG. 9.
  • the fixing method of the second heat sink 5 and the flexible battery 2 refers to the first heat sink 3, and the structure of the bendable area of the second heat sink 5 also refers to the first heat sink 3, which will not be repeated here.
  • the parameters such as the thickness and size of the second heat sink 5 may also be the same as or different from those of the first heat sink 3.
  • FIG. 19 for another structure of the heat dissipation assembly of this embodiment, which includes a first heat sink 3, a heat insulation layer 4, a second heat sink 5, and a heat conducting member 6.
  • the first heat sink 3 and the heat insulation layer 4 are both arranged on Between the flexible display panel 1 and the flexible battery 2, the heat insulation layer 4 is located between the first heat sink 3 and the flexible display panel 1, the second heat sink 5 is located on the side of the flexible battery 2 away from the flexible display panel 1, and the heat conducting member 6 Between the first radiating fin 3 and the second radiating fin 5 and connecting the first radiating fin 3 and the second radiating fin 5, the heat-conducting member is 6-positioned at least on one side of the flexible battery 2 and is spaced apart from the flexible battery 2.
  • the heat conducting member 6 is used to absorb the heat on the first heat sink 3 and the second heat sink 5. Since the heat conducting member 6 is not in contact with the flexible battery 2, it further conducts the heat on the first heat sink 3 and the second heat sink 5 To the heat conducting member 6 to further reduce the heat of the battery 2.
  • the heat conducting member 6 may be a metal material, or an organic material with high heat conduction efficiency such as graphene.
  • the heat-conducting member 6 may be a columnar structure arranged between the first heat sink 3 and the second heat sink 5, or a sheet-like structure, of course, it may also be of other forms, which is not particularly limited in this application. It can be arranged on only one side of the battery 2, or on more sides.
  • the heat-conducting element 6 may be an integral structure with the first heat sink 3 or the second heat sink 5.
  • the heat conducting member 6 can also be connected to the heat pipe 36 to conduct heat away.
  • the display device further includes a heat dissipation unit 7, which is connected to at least one of the first heat sink, the second heat sink, or the heat-conducting member, and is used for absorbing the heat dissipation component. Heat and conduct it to the outside of the display device.
  • the heat dissipation unit 7 is disposed in the housing of the display device, and is used to conduct the absorbed heat to the outside of the housing, and may include structures such as heat dissipation fins, fans, and the like.
  • the heat dissipation unit 7 is provided on a side of the flexible battery 2.
  • the first radiating fin 3 extends outward along the side relative to the second radiating fin 5 until it is connected to the radiating unit 7.
  • the leftward arrow in the figure indicates the omitted extension.
  • the second heat sink 5 or the heat conducting member 6 may also extend toward the heat dissipation unit 7, which is not specifically limited in this application.
  • Figure 19 also shows the cover 8 covering the light-emitting side of the display panel 1 and the flexible circuit board 9 connected to the display panel 1 in the display device.
  • the display device also includes other components such as a driver IC and a housing. List them one by one.
  • the size of the flexible battery 2 is larger than that of the flexible display panel 1. In other embodiments, the size of the flexible battery 2 may also be equal to or smaller than the flexible display panel 1.
  • display devices which can be televisions, laptops, tablets, wearable display devices, mobile phones, car displays, navigation, e-books, digital photo frames, advertising light boxes, etc. Any product or component with display function.

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Abstract

一种柔性显示装置，包括柔性显示面板、柔性电池和散热组件，柔性电池设于柔性显示面板远离出光面的一侧；散热组件包括第一散热片(3)，第一散热片(3)设于柔性电池朝向或背离柔性显示面板的任一侧，第一散热片(3)具有可弯折区。由此实现了整个显示装置的柔性化，也能够降低电池的局部温度，并防止电池局部温度过高，解决了柔性电池的散热问题。

Description

柔性显示装置
交叉引用
本公开要求于2020年5月25日提交的申请号为202010450415.4，以及2020年11月13日提交的申请号为202011267683.9名称为“柔性显示装置”的中国专利申请的优先权，该两件中国专利申请的全部内容通过引用全部并入本文。
技术领域
本公开涉及显示技术领域，具体而言，涉及一种柔性显示装置。
背景技术
柔性显示面板的出现大大拓宽了电子设备形态的设计范围。储能器件轻薄化、柔性化的研究方向，为柔性显示面板与柔性储能器件的匹配提供了可行性。但是显示装置整体柔性的实现还有诸多限制。
另外，储能器件工作时(充、放电)会产生一定的热量；如果器件出现局部位置异常时，还会出现局部的高热量集中“热点”问题。对柔性电池及柔性显示面板都有非常严重的功能影响。严重时会对面板产生损坏甚至引起对用户的重大安全风险。
需要说明的是，在上述背景技术部分发明的信息仅用于加强对本公开的背景的理解，因此可以包括不构成对本领域普通技术人员已知的现有技术的信息。
发明内容
本公开的目的在于提供一种柔性显示装置，解决现有技术存在的一种或多种问题。
根据本公开的一个方面，提供一种柔性显示装置，包括：
柔性显示面板；
柔性电池，设于所述柔性显示面板背离出光面的一侧；
散热组件，所述散热组件包括第一散热片，所述第一散热片设于所 述柔性电池朝向或背离所述柔性显示面板的任一侧，所述第一散热片具有可弯折区。
在本公开的一种示例性实施例中，所述第一散热片的可弯折区具有在厚度方向上的贯通结构。
在本公开的一种示例性实施例中，所述第一散热片为一整片结构，所述第一散热片的可弯折区包括多个图案化的开孔，所述开孔构成所述贯通结构。
在本公开的一种示例性实施例中，所述第一散热片的可弯折区包括多个平行排列的散热条，且任意相邻两个所述散热条之间具有间隔，所述间隔构成所述贯通结构。
在本公开的一种示例性实施例中，所述第一散热片还包括若干连接件，所述连接件连接相邻两个所述散热条，所述连接件与相邻两个所述散热条为枢接，使相邻两个散热条均能相对所述连接件转动。
在本公开的一种示例性实施例中，所述散热条至少一个长边上设置有至少一个朝向相邻所述散热条的第一凸出部。
在本公开的一种示例性实施例中，所述散热条的长边上与相邻所述散热条的第一凸出部对应的位置处设置有第二凸出部，所述第二凸出部具有与所述第一凸出部形状匹配的缺口，使所述缺口与所述第一凸出部能够相互贴合。
在本公开的一种示例性实施例中，所述第一散热片还包括散热管，所述散热管连接各所述散热条。
在本公开的一种示例性实施例中，所述第一散热件还包括基底层，所述散热条粘接于所述基底层的一面，所述基底层的另一面粘接于所述柔性电池或所述柔性显示面板。
在本公开的一种示例性实施例中，所述散热条的宽度L满足0.05mm≤L≤20mm，相邻两个所述散热条之间间隔的宽度h满足0.1mm≤h≤10mm。
在本公开的一种示例性实施例中，散热条上开设有通孔。
在本公开的一种示例性实施例中，所述第一散热片的材料为金属。
在本公开的一种示例性实施例中，所述散热组件还包括第二散热片， 所述第二散热片设于所述柔性电池朝向或背离所述柔性显示面板的另一侧，所述第二散热片具有可弯折区，所述第二散热片的可弯折区与所述隔热层的可弯折区、所述第一散热片的可弯折区对应。
在本公开的一种示例性实施例中，所述第二散热片的结构与所述第一散热片的结构相同或不同，所述第二散热片的材料与所述第一散热片的材料相同或不同。
在本公开的一种示例性实施例中，所述散热组件还包括隔热层，所述隔热层设于靠近所述柔性显示面板的散热片和所述柔性显示面板之间，所述隔热层具有可弯折区，所述隔热层的可弯折区与所述第一散热片的可弯折区对应。
在本公开的一种示例性实施例中，所述隔热层的材料为橡胶、硅胶、多孔材料、聚氨酯、亚克力或包含金属涂层的有机膜层。
在本公开的一种示例性实施例中，所述第一散热片、隔热层和第二散热片的厚度均不超过1mm。
在本公开的一种示例性实施例中，所述散热组件还包括导热件，所述导热件设于所述第一散热片和第二散热片之间且连接所述第一散热片和第二散热片，所述导热件位于所述柔性电池的至少一侧且与所述柔性电池具有间隔。
在本公开的一种示例性实施例中，所述柔性显示装置还包括散热单元，所述散热单元与所述第一散热片、第二散热片或导热件中至少一者连接。
在本公开的一种示例性实施例中，所述柔性电池包括柔性壳体和设于所述柔性壳体内的正极、负极、电解液、绝缘层、正极集流体和负极集流体，所述正极和负极相对设置，所述绝缘层位于所述正极和负极之间，所述正极集流***于所述正极背离所述绝缘层的一侧，所述负极集流***于负极背离所述绝缘层的一侧，所述电解液分布于所述正极和负极之间。
本公开的柔性显示装置包括柔性显示面板、柔性电池以及散热组件，散热组件设于柔性显示面板和柔性电池之间且具有可弯折区，由此既实现了整个显示装置的柔性化，也解决了柔性电池的散热问题，避免电池 热量影响显示面板，还能时使电池热量均匀化，防止电池局部过热导致的性能恶化。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本实施方式柔性电池的结构示意图；
图2为本实施方式柔性显示面板的结构示意图；
图3为第一种实施方式散热组件的结构示意图；
图4为第一散热片为整片结构时第一种图案化开孔的结构示意图；
图5为第一散热片为整片结构时第二种图案化开孔的结构示意图；
图6为第一散热片为整片结构时第三种图案化开孔的结构示意图；
图7为第一散热片包含散热条的结构示意图；
图8为散热条的粘接结构示意图；
图9为散热条包含第一凸出部的结构示意图；
图10为第一凸出部的多种形状示意图；
图11为散热条包含第一凸出部和第二凸出部的结构示意图；
图12为第一散热片包含散热管的结构示意图；
图13为散热条通过一种连接件连接的结构示意图；
图14为散热条通过另一种连接件连接的结构示意图；
图15为散热条上设置有通孔的结构示意图；
图16为第一散热片上设置非弯折区的结构示意图；
图17为第二种实施方式散热组件的结构示意图；
图18为第三种实施方式散热组件的结构示意图；
图19为第四种实施方式散热组件的结构示意图。
图中：1、显示面板；2、电池；3、第一散热片；4、隔热层；5、第二散热片；6、导热件；7、散热单元、8、盖板；9、柔性电路板；10、开孔；11、衬底；12、像素界定层；13、阳极层；14、有机发光材料层；15、阴极层；21、柔性壳体；22、正极；23、负极；24、正极集流体；25、负极集流体；26、隔膜；31、散热条；32、通孔；33、连接件；34、轴；35、转动轴；301、第一凸出部；302、第二凸出部；3021、缺口；36、散热管；37、基底层；30、非弯折区。
具体实施方式
现在将参考附图更全面地描述示例实施方式。然而，示例实施方式能够以多种形式实施，且不应被理解为限于在此阐述的实施方式；相反，提供这些实施方式使得本公开将全面和完整，并将示例实施方式的构思全面地传达给本领域的技术人员。图中相同的附图标记表示相同或类似的结构，因而将省略它们的详细描述。
本公开实施方式中提供了一种柔性显示装置，包括柔性显示面板、柔性电池以及散热组件，柔性显示面板设于柔性显示面板远离出光面的一侧，散热组件包括第一散热片，第一散热片朝向或背离柔性显示面板的任一侧，第一散热片具有可弯折区。
本公开的显示面板、电池、第一散热片全部采用柔性结构，每一组件都可以弯曲或折叠，实现了整机柔性化。同时，由于电池在充放电的时候产生的热量较多，且发热部位不均匀，第一散热片位于柔性电池的任一侧，能够吸收柔性电池产生的热量，降低电池温度，并使电池温度均匀化，避免对显示面板产生不良影响。
下面对实施方式的柔性显示装置进行说明：
本公开实施方式柔性电池的基本结构如图1所示，包括柔性壳体21，柔性壳体21内设置有正极22、负极23、电解液、正极集流体24、负极集流体25和隔膜26。其中，正极22和负极23相对设置，隔膜26设置在正极22和负极23之间，用于隔绝正极22和负极23，以避免两极上的活性物质直接接触而造成电池2内部的短路。正极集流体24与正极22接触，用于将正极22电流传输至外部电路；负极集流体25与负极23 接触，用于将外部电路的电流传输至负极23。电解液灌注与正极22和负极23之间，是离子运动的载体。图中虽省略了电解液，但本领域技术人员知晓，电解液应当分布于正极22和负极23之间，以便传递离子。
以锂电池2为例，柔性电池2的充电过程为：正极22生成的锂离子从正极22进入电解液，然后通过隔膜26上的微孔进入到电解液，最后运动到负极23，与负极23的电子结合在一起。其放电过程为：放电时电子从负极23通过外部电路移动至正极22，而锂离子从负极23进入电解液，然后通过隔膜26上的微孔进入到电解液，最后运动到正极22，与正极22的电子结合在一起。
为了实现柔性化，上述各部件均需具有柔性。正极22可以通过在固态正极22片上设置图案化的开孔10来实现柔性化，利用开孔10缓冲弯曲和扭曲时产生的应变。正极22材料根据柔性电池2类型而不同，例如用于锂电池2的钴酸锂、锰酸锂、磷酸铁锂等。负极23材料可以为石墨粉或石墨烯等材料，较易实现柔性化，也可以采用在负极23片上设置图案化的开孔10来实现柔性化。隔膜26可以采用高分子薄膜，可以是单层结构也可以是多层结构。其为单层时，可以采用常规高分子薄膜材料，如聚乙烯、聚丙烯等材料，其为多层时可以采用例如聚丙烯/聚乙烯的复合双层结构或例如聚丙烯/聚乙烯/聚丙烯的复合三层结构。此类材料均具有柔性可以实现柔性化。正极集流体24和负极集流体25可以采用常规金属集流体材料，如铜、铝、不锈钢等，或使用石墨烯基导电薄膜等较高的导电率材料，用此薄膜作为集流体装配的柔性电池2，可实现导电和柔性功能；也可以采用设置图案化开孔10的金属集流体(如铜网、铝网等)。柔性壳体21可以采用设置常规或图案化开孔10的铝塑膜、铜塑膜等材料，也可以是柔性高分子材料。电解液大部分均为液体或凝胶状，本身具有柔性；也可以采用固体电解质。
需要说明的是，柔性电池内部各部件为了实现弯曲、折叠而设置的开孔10应当相对应。
本实施方式的柔性显示面板的基本结构如图2所示，显示面板包括衬底11，衬底11上设置有驱动晶体管和驱动电路(图中未显示)。为了实现柔性化，衬底11需要采用柔性材料，柔性材料可以是聚合物材料， 例如聚乙烯(PE)、聚丙烯(PP)、聚酰亚胺(PI)、聚对苯二甲酸乙二醇酯(PET)、聚对萘二甲酸乙二醇酯(PEN)等。柔性衬底11上还设置有图案化的开孔10结构，以便释放卷曲和弯折的应力。衬底11基板的一侧设置有用于定义各子像素开口区的像素界定层12，每个开口区内设置有一个发光器件，发光器件可以为有机电致发光器件，具体包括阳极层13、有机发光材料层14、阴极层15等膜层，当然还可以进一步包括空穴传输层、电子传输层、电子注入层、空穴注入层及其他膜层。本申请不对此进行特殊限定。进一步，显示面板1还可以包括封装层，封装层可以采用薄膜封装的方式，以便实现柔性化。
参考图3，为一种实施方式中散热组件的截面结构示意图，该第一散热片3位于柔性显示面板1和柔性电池2之间，第一散热片3设置于电池2的一面，用于吸收柔性电池2朝向显示面板1一侧散发的热量，降低电池2温度，并防止电池2局部温度过高，避免影响显示面板1。第一散热片3具有可弯折区，以便配合整体装置实现卷曲或弯折。
第一散热片3的材料也可以为石墨烯等高导热性能的有机材料。当第一散热片3选用石墨烯时，由于石墨烯本身具有较高的柔性，可以实现卷曲或弯折，因此其可以为一整片结构，其整体均可看作为可弯折区。而且较薄的石墨烯散热片就可以达到很好的导热性，显示装置的整体厚度可以控制在较理想的范围。石墨烯材料的第一散热片3可以通过粘接的方式与显示面板1和电池2固定在一起。
第一散热片3的材料还可以为金属材料，例如银、铜、铝、金、铁、锡等，也可以为上述金属的合金材料。上述金属材料既可以起到散热作用，也可以对柔性显示面板起到较好的支撑作用，进而提高柔性显示面板的抗挤压能力。由于金属材料刚性较强，要想实现理想的弯折性能，需要在该材料的可弯折区形成在厚度方向上的贯通结构，以释放材料弯折时的应力，提高弯折性能。同时还能满足轻量化设计。贯通结构可以有多种形式。
在一些实施方式中，第一散热片3为一整片的结构，第一散热片3的可弯折区上设置有图案化的开孔10，即形成第一散热片3上的贯通结构开孔10可以缓冲散热片弯折时所受到的应力。可以理解的是，第一散 热片3的可弯折区应当与柔性显示面板1或柔性电池2的可弯折区相对应。图案化的开孔10可以如图4-图6所示，在图4所示的第一种结构中，图案化的开孔10为阵列排布的六边形；在图5所示的第二种结构中，图案化的开孔10为阵列排布的圆形；在图6所示的第三种结构中，图案化的开孔10为阵列排布的半圆端矩形。这三种结构中，第三种结构为优选结构，该开孔形式对应力的分散效果更好，可弯折性能更佳。整片金属材料制备的第一散热片3可以通过机械连接方式与显示面板1和电池2固定在一起，如卡接、铆接等方式，也可以通过胶带、胶水等方式与显示面板1和电池2粘接在一起。
在另一些实施方式中，第一散热片3也可以不为一整片结构。例如图7所示，第一散热片3包括多个平行排列的散热条31，且任意相邻两个散热条31之间具有间隔，该间隔构成第一散热片3上的贯通结构。由于具有间隔，相邻的散热条31可以相对彼此翻折，使得整个第一散热片3整体具有可弯折性，相比在整片金属上开孔的结构，该结构的第一散热片3弯折效果更好，且能够进一步降低金属件对柔性显示模组的应力影响，显示面板的柔性信赖性更高。此外，还能进一步降低第一散热片3整体的回弹力，降低柔性整机的组装难度和柔性动作实现的难度。该结构中，散热条31及其间隔至少位于第一散热片3的可弯折区，当然在非弯折区也可以设置上述散热条的结构来导出柔性电池的热量或用于支撑显示面板。可以理解的是，散热条31的排布方向应当(即间隔的排布方向)与弯曲方向一致才可以实现弯曲。需要说明的是，本申请所述的多个散热条平行排列允许因工艺精度等原因导致的实际产品角度误差存在。
参考图8，散热条31可以通过粘接的方式先粘接在一基底层37上，然后再将基底层37粘接在柔性显示面板上或柔性电池上。当然也可以采用机械连接方式固定在柔性电池或柔性显示面板上，例如卡接、铆接等方式。当采用粘接的方式将散热条31粘贴在基底层上时，散热条31在多次弯曲过程中有可能沿弯折方向(即宽度方向)上发生位移，导致第一散热片整体导热均匀性和支撑能力降低。
在一些示例性实施方式中，参考图9，散热条31至少一个长边上设 置有至少一个朝向相邻散热条31的第一凸出部301，当散热条31自身或相邻散热条31发生位移时，该第一凸出部301可以顶在相邻散热条31上，以对自身或相邻的散热条31起到限位作用，使二者之间始终保持一固定间隔，避免因位移变化过大而导致导热均匀性和支撑能力降低。第一凸出部301可以只设置在散热条31的一个长边上，也可以设置在散热条31的两个长边上。每一个散热条31上的第一凸出部301的数量可以为一个，也可以为多个。相邻两个散热条31上的第一凸出部301位置可以对应，也可以不对应。
举例而言，如图9中(a)所示，多个散热条31水平间隔排列，各散热条31的右侧边上设置有一个向右的第一凸出部301，各第一凸出部301位于同一水平线上。再如图中(b)所示，各散热条31的右侧边上设置有上下两个向右的第一凸出部301，位于上方的各第一凸出部301位于同一水平线上，位于下方的各第一凸出部301位于同一水平线上。再如图中(c)所示，各散热条31的左侧边上设置有一个向左的第一凸出部301，右侧边上设置有一个向右的第一凸出部301，各第一凸出部301位于同一水平线上，因此，相邻两个散热条31的第一凸出部301相对设置。再如图中(d)所示，各散热条31的左侧边和右侧边上各设置有上下两个第一凸出部301，位于上方的各第一凸出部301位于同一水平线上，位于下方的各第一凸出部301位于同一水平线上。再如图中(e)所示，各散热条31的左侧边上设置有一个向左的第一凸出部301，右侧边上设置有一个向右的第一凸出部301，各向左的第一凸出部301位于一水平线上，各向右的第一凸出部301位于另一水平线上，因此，相邻两个散热条31的第一凸出部301上下交错设置。再如图中(f)所示，各散热条31的左侧边和右侧边上各设置有上下两个第一凸出部301，每一个散热条31上的四个第一凸出部301左右交错设置。再如图中(g)所示，各散热条31的左侧边和右侧边上各设置有上中下三个第一凸出部301，各散热条31的第一凸出部301分布于三个水平线上。再如图中(h)所示，多个散热条31可以在图中纵向方向上排列多组。
上述具体实施方式中的第一凸出部301的形状均以半圆形为例，可以理解的是，第一凸出部301的形状还可以为其他任意形状，例如图10 中(a)所示的矩形、图10中(b)所示的梯形。
进一步地，在一些示例性实施方式中，参考图11，散热条31的长边上与相邻散热条31的第一凸出部301对应的位置处还设置有第二凸出部302，第二凸出部302具有一缺口3021，缺口3021与第一凸出部301形状匹配，以使两个散热条31发生位移时，缺口3021和第一凸出部301能够卡合，防止散热条31进一步移动。而且缺口3021能对第一凸出部301形成包围，还可以防止散热条31在图中纵向上发生移动，即在水平和竖直方向上都对散热条31起到的限位作用，限位效果更好。如图11中(a)所示，第一凸出部301和缺口3021的形状均为梯形。如图11中(b)所示，第一凸出部301和缺口3021的形状均为半椭圆形。其中，第二凸出部302的形状包括但不限于图所示的矩形凸出部，也可以是其他形状。需要说明的是，散热条相互靠近，第一凸出部301和缺口3021相互卡合时，两个散热条其他相对的部分之间仍然应当留有间隙。对于该种结构，也可以在一个散热条上设置多个，如图11中(c)所示，每个散热条上设置三个第一凸出部301和第二凸出部302。
进一步地，在一种示例性实施方式中，参考图12，第一散热片3还设置有散热管36，散热管36用于将各散热条31连接在一起，以将各散热条31的热量进行导通，提高整个第一散热片3的导热均匀性，使整个第一散热片3上的热量分散更均匀。
在另一些实施方式中，相邻散热条31之间可以通过连接件33连接为一个整体，为了不影响相邻散热条31进行弯折，连接件33与散热条31之间最好为枢接的形式，枢接的结构使得相邻两个散热条31仍然能够实现相对翻折。具体地，如图13所示，连接件33可以为设置在相邻两个散热条31端部的条形杆，条形杆延伸方向与散热条31延伸方向垂直，散热条31端部和连接件33端部相对的位置都设置有安装孔(图中未示出安装孔)，一个水平设置的轴34贯穿于散热条31和连接件33相对的安装孔内，形成枢接，散热条31和连接件33都可绕轴34旋转，那么相邻两个散热条均能相对连接件转动，从而使得两个散热条31可以实现弯折。如图14所示，连接件33还可以为与散热条31平行设置的转动轴35，转动轴35位于相邻两个散热条31之间，散热条31端部设置有 包含安装孔的延伸段(图中未示出安装孔)，转动轴35的两端穿设在散热条31上的安装孔内，由此使散热条31可沿转动轴35转动。当然，连接件33还可以为其他结构，例如还可以为穿设于各散热条通孔内将各散热条串联在一起的连接线此处不再一一列举。在此种结构下，即使相邻两个散热条31之间的间隔较小，第一散热片3仍然能通过枢接的结构实现弯折。由于各散热条31被连接件33连接为一个整体，结构更加稳固。同时，连接件的材料优选具有导热功能的金属等材料，这样可以使各散热条31上的热量经过连接件相互传递，使整个第一散热片3的热量分散更均匀。
上述实施方式中，参考图7，散热条31的宽度和间距都对弯折效果、散热效果和支撑效果有显著影响，若间隔过大散热条31宽度过窄会导致散热不良且支撑效果不好，若间隔过小散热条31宽度过宽则会影响弯折效果。优选的，散热条31的宽度L满足0.05mm≤L≤20mm，例如，L可以取值为0.05nm、0.1nm、1nm、2nm、5nm、10nm、15nm、20nm。L取值越小，散热条31在纵向方向上越不容易形成的明显高低不平的结构。相邻两个散热条31之间间隔的宽度h满足0.1mm≤h≤10mm，例如，h可以取值为0.1nm、1nm、2nm、5nm、8nm、10nm。在该尺寸范围内，第一散热片的弯折效果更平滑，散热效果理想，且结构稳定支撑效果更好。
需要说明的是，参考图12，散热条31包括第一凸出部301时，散热条31的宽度L为除过第一凸出部301以外部分的宽度，即散热条的最小宽度。相邻两个散热条31之间间隔的宽度h为两个散热条31上除过第一凸出部301以外部分之间的距离，即相邻两个散热条31之间的最大间距。第一凸出部301的尺寸可根据结构和散热条31的间距进行设置。
进一步地，在一种示例性实施方式中，参考图15，散热条31上还开设有通孔32，通孔32使得散热条31本身也具有可弯折性，进一步提高了第一散热片的可弯折性能。
本申请中，无论第一散热片采用片状结构还是散热条31状结构，其厚度都优选不超过1mm，该厚度可以满足散热需求，同时对整个装置厚度增加不明显，有利于实现轻薄化设置。
还需要说明的是，如图16所示，第一散热片3上可以包含非弯折区 30，非弯折区30可以为一整片不可弯折的结构层。例如，在第一散热片3与显示面板不可弯折的主板IC对应的区域，可以将其设置为一整片金属层，其他可弯折区域为散热条结构。
以上对图3所示的散热组件中的第一散热片3的结构进行了详细说明。在另一种实施方式中，该第一散热片3也可以位于柔性电池2背离柔性显示面板1的一侧，用于吸收柔性电池2背离显示面板1一侧散发的热量，也可以起到降低电池2温度防止电池2局部温度过高的作用。
在一种实施方式中，如图17所示，在图3的基础上，散热组件还包括隔热层4，第一散热件3和隔热层4均设于柔性显示面板1和柔性电池2之间，其中隔热层4位于第一散热片3和柔性显示面板1之间。隔热层4整体呈片状，其也具有可弯折区。
隔热层4的作用在于隔绝第一散热片3和柔性显示面板1之间的热量，以屏蔽第一散热片3的高温对柔性显示面板1的热影响。因此隔热层4应选用导热性能较低的材料，例如橡胶等有机材料。同时，隔热层4也应当具有可弯折区，使其也能弯曲或折叠，以匹配显示装置整体结构。可以理解的是，隔热层4的可弯折区应当与第一散热片3、柔性显示面板1或柔性电池2的可弯折区相对应。那么可以在隔热层4上也设置图案化的开孔10结构，也可以选用柔性较高的材料。另一方面，隔热层4可以进一步采用绝缘材料，以防止电池2漏出的电流经第一散热片3传导至显示面板1，影响显示面板1。
因此，综合以上各方面的需求，隔热层4的材料优选橡胶、硅胶、聚氨酯、亚克力；或泡沫材料、纤维材料等多孔材料，多孔材料的中空结构中可以填充空气或其他介质；还可以是热反射材料，如镀金、银的聚酰亚胺膜层。
隔热层4与第一散热片3或显示面板1的固定方式可以是机械连接方式或胶粘的方式。
在一种实施方式中，如图18所示，在图3的基础上，散热组件还包括第二散热片5，具体而言，第一散热片3和隔热层4均设于柔性显示面板1和柔性电池2之间，隔热层4位于第一散热片3和柔性显示面板1之间，第二散热片5位于柔性电池2远离柔性显示面板1的一侧，整 体呈片状覆盖于柔性电池2的一侧，用于吸收柔性电池2背离显示面板1一侧散发的热量，使整个装置具有更理想的散热性能。第二散热片5具有可弯折区。可以理解的是，第二散热片5的可弯折区和第一散热片3、隔热层4、柔性电池2、柔性显示面板1的可弯折区相对应。在其他实施方式中，当第一散热片3位于柔性电池2背离柔性显示面板1的一侧时，第二散热片5则位于柔性电池2朝向柔性显示面板1的一侧，即位于柔性电池2和柔性显示面板1之间。此时隔热层可设置在第二散热片5和柔性显示面板1之间，用于阻隔第二散热片5的高温对柔性显示面板1的影响。也就是说，隔热层始终可以设置在靠近柔性显示面板的散热片和柔性显示面板之间。
第二散热片5的结构可以与第一散热片3相同，也可以不同。第二散热片5的材料可以与第一散热片3相同，也可以不同。举例而言，第一散热片采用图9所示的金属散热条结构，第二散热片采用整片石墨烯膜层；或第一散热片采用图6的金属图案化过孔结构，第二散热片采用图9所示的金属散热条结构。第二散热片5与柔性电池2的固定方式参考第一散热片3，第二散热片5的可弯折区结构也参考第一散热片3，此处不再赘述。除此之外，第二散热片5的厚度、尺寸等参数也可以与第一散热片3相同或不同。
本实施方式的散热组件的再一种结构参考图19，包括第一散热片3、隔热层4、第二散热片5和导热件6，第一散热片3和隔热层4均设于柔性显示面板1和柔性电池2之间，隔热层4位于第一散热片3和柔性显示面板1之间，第二散热片5位于柔性电池2远离柔性显示面板1的一侧，导热件6第一散热片3和第二散热片5之间且连接第一散热片3和第二散热片5，导热件6位柔性电池2的至少一侧且与柔性电池2具有间隔。
导热件6用于吸收第一散热片3和第二散热片5上的热量，由于导热件6与柔性电池2不接触，因此进而将第一散热片3和第二散热片5上的热量传导至导热件6，以进一步降低电池2热量。导热件6可以为金属材料，也可以是石墨烯等具有高热传导效率的有机材料。
导热件6可以是设置在第一散热片3和第二散热片5之间的柱状结 构，也可以是片状结构当然还可以是其他形式，本申请不对此进行特殊限定。其可以只设置在电池2的一侧，也可以设置在更多的侧面。导热件6可以与第一散热片3或第二散热片5为一体结构。当第一散热片3或第二散热片5包括散热条31和散热管36时，导热件6也可以和散热管36相连，以将热量传导出去。
在一种示例性实施方式中，继续参考图19，显示装置还包括散热单元7，散热单元7与上述第一散热片、第二散热片或导热件中至少一者连接，用于吸收散热组件的热量并将其传导至显示装置之外。散热单元7设置于显示装置的壳体内，用于将吸收的热量传导至壳体外，可以包括散热鳍片、风扇等结构。为了与散热单元7相连，第一散热片3、第二散热片5和导热件6中至少一个需要延伸至散热单元7，以图中所示为例，散热单元7设于柔性电池2的一侧，第一散热片3相对于第二散热片5沿该侧向外延伸直至与散热单元7相连，图中向左的箭头表示省略了的延伸部分。在其他实施例中，也可以是第二散热片5或导热件6向散热单元7延伸，本申请不对此进行特殊限定。
图19中还示出了显示装置中覆盖于显示面板1出光侧的盖板8以及与显示面板1相连的柔性电路板9，当然显示装置还包含驱动IC、壳体等其他部件，此处不再一一列举。需要说明的是，本实施例中，柔性电池2尺寸大于柔性显示面板1，在其他实施例中，柔性电池2的尺寸也可以等于或小于柔性显示面板1。
需要说明的是，本公开对于显示装置的适用不做具体限制，其可以是电视机、笔记本电脑、平板电脑、可穿戴显示设备、手机、车载显示、导航、电子书、数码相框、广告灯箱等任何具有显示功能的产品或部件。
虽然本说明书中使用相对性的用语，例如“上”“下”来描述图标的一个组件对于另一组件的相对关系，但是这些术语用于本说明书中仅出于方便，例如根据附图中所述的示例的方向。能理解的是，如果将图标的装置翻转使其上下颠倒，则所叙述在“上”的组件将会成为在“下”的组件。当某结构在其它结构“上”时，有可能是指某结构一体形成于其它结构上，或指某结构“直接”设置在其它结构上，或指某结构通过另一结构“间接”设置在其它结构上。
用语“一个”、“一”、“该”、“所述”和“至少一个”用以表示存在一个或多个要素/组成部分/等；用语“包括”和“具有”用以表示开放式的包括在内的意思并且是指除了列出的要素/组成部分/等之外还可存在另外的要素/组成部分/等。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由所附的权利要求指出。

Claims (20)

  1. 一种柔性显示装置，其中，包括：
    柔性显示面板；
    柔性电池，设于所述柔性显示面板背离出光面的一侧；
    散热组件，所述散热组件包括第一散热片，所述第一散热片设于所述柔性电池朝向或背离所述柔性显示面板的任一侧，所述第一散热片具有可弯折区。
  2. 根据权利要求1所述的柔性显示装置，其中，所述第一散热片的可弯折区具有在厚度方向上的贯通结构。
  3. 根据权利要求2所述的柔性显示装置，其中，所述第一散热片为一整片结构，所述第一散热片的可弯折区包括多个图案化的开孔，所述开孔构成所述贯通结构。
  4. 根据权利要求2所述的柔性显示装置，其中，所述第一散热片的可弯折区包括多个平行排列的散热条，且任意相邻两个所述散热条之间具有间隔，所述间隔构成所述贯通结构。
  5. 根据权利要求4所述的柔性显示装置，其中，所述第一散热片还包括若干连接件，所述连接件连接相邻两个所述散热条，所述连接件与相邻两个所述散热条为枢接，使相邻两个散热条均能相对所述连接件转动。
  6. 根据权利要求4所述的柔性显示装置，其中，所述散热条至少一个长边上设置有至少一个朝向相邻所述散热条的第一凸出部。
  7. 根据权利要求6所述的柔性显示装置，其中，所述散热条的长边上与相邻所述散热条的第一凸出部对应的位置处设置有第二凸出部，所述第二凸出部具有与所述第一凸出部形状匹配的缺口，使所述缺口与所述第一凸出部能够相互贴合。
  8. 根据权利要求4所述的柔性显示装置，其中，所述第一散热片还包括散热管，所述散热管连接各所述散热条。
  9. 根据权利要求4所述的柔性显示装置，其中，所述第一散热件还包括基底层，所述散热条粘接于所述基底层的一面，所述基底层的另一面粘接于所述柔性电池或所述柔性显示面板。
  10. 根据权利要求4所述的柔性显示装置，其中，所述散热条的宽度L满足0.05mm≤L≤20mm，相邻两个所述散热条之间间隔的宽度h满足0.1mm≤h≤10mm。
  11. 根据权利要求4所述的柔性显示装置，其中，散热条上开设有通孔。
  12. 根据权利要求2所述的柔性显示装置，其中，所述第一散热片的材料为金属。
  13. 根据权利要求1-12中任一项所述的柔性显示装置，其中，所述散热组件还包括：
    第二散热片，所述第二散热片设于所述柔性电池朝向或背离所述柔性显示面板的另一侧，所述第二散热片具有可弯折区，所述第二散热片的可弯折区与所述隔热层的可弯折区、所述第一散热片的可弯折区对应。
  14. 根据权利要求13所述的柔性显示装置，其中，所述第二散热片的结构与所述第一散热片的结构相同或不同，所述第二散热片的材料与所述第一散热片的材料相同或不同。
  15. 根据权利要求13所述的柔性显示装置，其中，所述散热组件还包括：
    隔热层，所述隔热层设于靠近所述柔性显示面板的散热片和所述柔性显示面板之间，所述隔热层具有可弯折区，所述隔热层的可弯折区与所述第一散热片的可弯折区对应。
  16. 根据权利要求13所述的柔性显示装置，其中，所述隔热层的材料为橡胶、硅胶、多孔材料、聚氨酯、亚克力或包含金属涂层的有机膜层。
  17. 根据权利要求15所述的柔性显示装置，其中，所述第一散热片、隔热层和第二散热片的厚度均不超过1mm。
  18. 根据权利要求15所述的柔性显示装置，其中，所述散热组件还包括：
    导热件，所述导热件设于所述第一散热片和第二散热片之间且连接所述第一散热片和第二散热片，所述导热件位于所述柔性电池的至少一侧且与所述柔性电池具有间隔。
  19. 根据权利要求18所述的柔性显示装置，其中，所述柔性显示装置还包括：
    散热单元，所述散热单元与所述第一散热片、第二散热片或导热件中至少一者连接。
  20. 根据权利要求1所述的柔性显示装置，其中，所述柔性电池包括柔性壳体和设于所述柔性壳体内的正极、负极、电解液、绝缘层、正极集流体和负极集流体，所述正极和负极相对设置，所述绝缘层位于所述正极和负极之间，所述正极集流***于所述正极背离所述绝缘层的一侧，所述负极集流***于负极背离所述绝缘层的一侧，所述电解液分布于所述正极和负极之间。
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