WO2020093207A1 - Display screen, display device and electronic device - Google Patents

Display screen, display device and electronic device Download PDF

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Publication number
WO2020093207A1
WO2020093207A1 PCT/CN2018/113993 CN2018113993W WO2020093207A1 WO 2020093207 A1 WO2020093207 A1 WO 2020093207A1 CN 2018113993 W CN2018113993 W CN 2018113993W WO 2020093207 A1 WO2020093207 A1 WO 2020093207A1
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WO
WIPO (PCT)
Prior art keywords
heat dissipation
display screen
layer
dissipation layer
screen body
Prior art date
Application number
PCT/CN2018/113993
Other languages
French (fr)
Chinese (zh)
Inventor
陈松亚
Original Assignee
深圳市柔宇科技有限公司
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 深圳市柔宇科技有限公司 filed Critical 深圳市柔宇科技有限公司
Priority to CN201880096058.7A priority Critical patent/CN112703829A/en
Priority to PCT/CN2018/113993 priority patent/WO2020093207A1/en
Publication of WO2020093207A1 publication Critical patent/WO2020093207A1/en

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    • 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
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating

Definitions

  • the present application relates to the field of display devices of electronic equipment, and in particular, to a display screen, a display device provided with the display screen, and an electronic device provided with the flexible display device.
  • the display screen can be widely used in a variety of flexible display electronic products due to its own properties such as flexibility, lightness, and low power consumption.
  • Existing display screens are generally composed of multiple physical stacks laminated and bonded by optical adhesive or double-sided adhesive. These physical stacks are made of polymer film materials. These physical layers are made of polymer film materials. The thermal conductivity is poor, and the thermal conductivity is small.
  • the main heating layer of the display screen is a light-emitting device layer, and the light-emitting device layer is located in the middle of the display screen, that is, the front and back sides of the light-emitting device layer are laminated with physical layers made of polymer thin film materials. The heat produced when the layer is working is not easy to conduct out of the flexible screen, and the heat dissipation effect is poor, thereby affecting the normal operation of the display screen.
  • the application provides a display screen with good heat dissipation effect, a display device provided with the display screen, and an electronic device provided with the display device.
  • a display screen provided by the present application includes a screen body and a cover plate stacked on the front of the screen body, and a transparent first heat dissipation layer is provided between the screen body and the cover plate, the first The heat dissipation layer is used to convert the heat generated during the operation of the screen body into infrared rays to be radiated to the outside through the cover plate.
  • the present application also provides a display device, which includes a display screen and a support sheet attached to the back of the display screen for heat conduction, the display screen includes a screen body and a cover plate stacked on the front of the screen body , A transparent first heat dissipation layer is provided between the screen body and the cover plate, the first heat dissipation layer is used to convert the heat generated during the operation of the screen body into infrared rays and radiate to the outside through the cover plate .
  • the present application also provides an electronic device, which includes a housing and a number of electronic components disposed in the housing, and a display device, the display device includes a display screen and a support sheet attached to the back of the display screen
  • the display screen includes a screen body and a cover plate stacked on the front of the screen body.
  • a transparent first heat dissipation layer is provided between the screen body and the cover plate. The heat generated during the operation of the screen body is converted into infrared rays and radiated to the outside through the cover plate, and the heat generated by several electronic components is converted into infrared radiation through the first heat dissipation layer of the display device.
  • a transparent first heat dissipation layer is provided between the screen body and the cover of the display screen of the electronic device of the present application.
  • the heat generated by the screen body is converted into infrared rays through the first heat dissipation layer and the infrared rays are radiated through the cover To the outside world, so that the heat generated by the screen body can be quickly and evenly distributed outside the display screen, and the heat dissipation effect of the display screen is improved to ensure the normal operation of the display screen.
  • FIG. 1 is a schematic perspective view of the electronic device in the first embodiment of the present application.
  • FIG. 2 is a cross-sectional view taken along line II-II in FIG. 1.
  • Fig. 3 is an enlarged view of part III in Fig. 2.
  • FIG. 4 is a schematic cross-sectional structure diagram of a bent state of an electronic device in the first embodiment of the present application.
  • FIG. 5 is a schematic cross-sectional structure diagram of an electronic device in a second embodiment of the present application.
  • FIG. 6 is a schematic cross-sectional structural view of an electronic device in a third embodiment of the present application.
  • FIG. 7 is an enlarged view of part VII in FIG. 6.
  • FIG. 8 is a schematic cross-sectional structural view of an electronic device in a fourth embodiment of the present application.
  • FIG. 9 is a schematic cross-sectional structure diagram of an electronic device in a fifth embodiment of the present application.
  • FIG. 10 is a schematic cross-sectional structure diagram of a bent state of an electronic device in a fifth embodiment of the present application.
  • FIG. 1 is a schematic perspective view of the electronic device in the first embodiment of the present application
  • FIG. 2 is a cross-sectional view taken along line II-II in FIG. 1
  • FIG. 3 is a part III in FIG. Enlarged image.
  • the electronic device 100 in the first embodiment of the present application includes a housing 20 and a display device 30 disposed on the housing 20.
  • the casing 20 includes a first frame 21, a second frame 23 and a hinge 25 connected between the first frame 21 and the second frame 23.
  • the display device 30 includes a display screen 32 and a supporting piece 36 disposed on the back of the display screen 32.
  • the display screen 32 includes a screen body 320 and a flexible cover plate 329 stacked on the front of the screen body 320.
  • the cover plate 329 is transparent and transparent to infrared rays, and a transparent first heat dissipation layer 321 is provided between the screen body 320 and the cover plate 329, and the first heat dissipation layer 321 is used to connect the screen body 320
  • the heat is converted into infrared radiation through the cover plate 329 and radiated to the outside of the display screen 32, so that the heat of the screen body 320 can be quickly radiated into the air.
  • the front side of the display screen 32 faces the light exit surface of the display screen 32
  • the back side of the display screen 32 faces the back surface facing the light exit surface
  • the display screen 32 is a display screen
  • the screen body 320 is a flexible screen body.
  • the electronic device 100 is a mobile phone. It can be understood that in other embodiments, the electronic device 100 may be, but not limited to, a PDA of a radiotelephone, pager, web browser, memo pad, calendar, and / or global positioning system (GPS) receiver.
  • a PDA of a radiotelephone
  • pager web browser
  • memo pad memo pad
  • calendar calendar
  • GPS global positioning system
  • a transparent first heat dissipation layer 321 is provided between the screen body 320 and the cover plate 329 of the display screen 32 of the electronic device 100 of the present application.
  • the heat generated by the screen body 320 is converted by the first heat dissipation layer 321 It is infrared rays, and radiates infrared rays to the outside through the cover plate 329, so that the heat generated by the screen body 320 can be quickly and evenly distributed to the outside of the display screen 32, and the heat dissipation effect of the display screen 32 is improved to ensure The display 32 works normally.
  • a metal middle frame 26 is provided in the first frame 21 and the second frame 23, and the display device 30 is provided on the metal middle frame 26.
  • the first frame 21 is provided with a main board 212, a number of electronic components 214 provided on the main board 212 facing the metal middle frame 26, and a battery 215 provided in the first frame 21.
  • Some of the electronic components 214 may be heating chips such as a CPU chip, a power management chip, a charging integrated circuit chip, etc., which are installed on the motherboard 212. When the electronic device 100 is in operation, these heating chips can generate a large amount of heat and require Dissipate heat in time to prevent the electronic components 214 from overheating, so as to ensure the normal operation of each electronic component 214.
  • One side of the metal middle frame 26 is attached to the back of the display device 30, and the other side of the metal middle frame 26 is attached to a plurality of electronic components 214.
  • the heat generated during the operation of the electronic component 214 is conducted to the metal middle frame 26, and the metal middle frame 26 emits the heat, thereby improving the heat dissipation efficiency of each electronic component 214.
  • a heat conducting member 216 is provided between the electronic component 214 and the metal middle frame 26, and the heat generated during the operation of the electronic component 214 is conducted to the metal middle frame 26 through the heat conducting member 216.
  • the heat conducting member 216 is a heat conducting pad or a heat conducting paste.
  • a part of the electronic components 214 is covered with a shielding cover 217.
  • a heat conducting member 216 such as a thermal pad or a thermal paste is provided.
  • the shielding cover 217 and the metal middle frame 26 There is a thermal pad or thermal paste. The heat generated during the operation of the electronic component 214 is conducted to the shielding case 217 through the thermal pad or the thermal paste, and then to the metal middle frame through the thermal pad or the thermal paste between the shielding case 217 and the metal middle frame 26 26 on.
  • the second frame 23 may also be provided with a circuit board, a battery or an electronic component, etc.
  • the heat generated when the circuit board, the battery or the electronic component is working can also be conducted to the metal middle frame 26, the metal middle frame 26 shoot out the heat.
  • the display screen 32 is provided with a bendable area 31 corresponding to the hinge 25 and non-bendable areas 33 on opposite sides of the bendable area 31.
  • the two non-bending regions 33 respectively correspond to the first frame body 21 and the second frame body 23.
  • the first heat dissipation layer 321 is made of a coating material with high infrared emissivity, and the infrared emissivity of the coating of the first heat dissipation layer 321 is greater than or equal to 0.95.
  • the first heat dissipation layer 321 is provided on the front of the screen body 320 with high heat generation. Since the first heat dissipation layer 321 is made of a coating material with high infrared emissivity, the screen body 320 The front surface is provided with a first heat dissipation layer 321 made of an infrared high emissivity coating material to improve the heat dissipation efficiency of the screen body 320 surface.
  • the first heat dissipation layer 321 may be a transparent graphene coating or a transparent graphene film layer.
  • the first heat dissipation layer 321 is a transparent graphene coating applied on the side of the cover plate 329 facing the screen body 320, and the graphene coating covers the entire cover plate 329 Is facing the side of the screen body 320 to form a uniform graphene coating.
  • the graphene coating is deposited on the surface of the cover plate 329 facing the screen body 320 by vacuum plating or vapor deposition.
  • the graphene coating is a coating with a high infrared emissivity, and the surface structure of the graphene coating is a crystal structure, the graphene coating has a high efficiency in converting heat into infrared rays.
  • the heat generated by the screen body 320 can be converted into infrared rays through the first heat dissipation layer 321 and evenly radiated to the outside through the cover plate 329.
  • the first heat dissipation layer 321 is glued to the front surface of the screen body 320.
  • the cover plate 329 is attached to the front surface of the screen body 320 through the transparent optical adhesive layer 322, that is, the cover plate 329
  • the side coated with the first heat dissipation layer 321 is attached to the front of the screen body 320 through the optical adhesive layer 322.
  • the optical adhesive layer 322 can transmit infrared rays and has strong thermal conductivity.
  • the heat generated by the screen body 320 is conducted to the first heat radiation heat dissipation layer 321 through the optical adhesive layer 322, the first heat dissipation layer 321 converts the heat into infrared rays, and radiates evenly through the cover plate 329 To the outside world.
  • the first heat dissipation layer 321 may be a transparent graphene thin film layer, the graphene thin film layer is laminated between the screen body 320 and the cover plate 329, the graphene The thin film layer covers the entire front of the screen body 320. Specifically, the first heat dissipation layer 321 is attached to the front of the screen body 320 through the optical adhesive layer 322.
  • the first heat dissipation layer 321 may also be a transparent graphene coating applied on the front surface of the screen body 320.
  • the first heat dissipation layer 321 may be a transparent carbon nanotube coating, that is, the first heat dissipation layer 321 is coated on the side of the cover plate 329 facing the screen body 320 Transparent carbon nanotube coating, the carbon nanotube coating covers the entire side of the cover plate 329 facing the screen body 320 to form a uniform layer of carbon nanotube coating. Since the carbon nanotube coating is a coating with high thermal conductivity, the carbon nanotube coating has a high efficiency of converting heat into infrared rays, and can convert the heat generated by the screen body 320 into infrared rays through the cover The board 329 is ejected to improve the heat dissipation efficiency of the screen body 320.
  • the first heat dissipation layer 321 may be a transparent carbon nanotube film layer, and the carbon nanotube film layer is laminated between the screen body 320 and the cover plate 329.
  • the carbon nanotube film layer covers the entire front surface of the screen body 320.
  • the first heat dissipation layer 321 is attached to the front surface of the screen body 320 through an optical adhesive layer.
  • the first heat dissipation layer 321 may also be a transparent carbon nanotube coating applied on the front of the screen body 320.
  • the first heat dissipation layer 321 is coated on both the front and back of the cover 329.
  • the cover plate 329 is a flexible and bendable sheet that transmits visible light and infrared rays.
  • the cover plate 329 is ultra-thin glass, and the thickness of the ultra-thin glass cover sheet is On the order of micrometers, specifically, the thickness of the ultra-thin glass cover plate 329 ranges from 5 microns to 80 microns (inclusive).
  • the ultra-thin glass cover sheet has the advantages of good bending resistance, high strength and high hardness.
  • the ultra-thin glass cover sheet can not only bend or flatten with the display screen 32, but also effectively resist the scratching of the ultra-thin glass cover sheet by external objects, which is not prone to wear.
  • the ultra-thin glass cover sheet has a low modulus of elasticity, and it can be directly pasted on the front of the display screen 32, and can be synchronized or nearly synchronized with the display screen 32 when the display device 30 is bent, thereby avoiding the display device 30 In the case of bending, there is a case of damage due to the large difference in tensile amplitude.
  • the ultra-thin glass cover sheet has a high light transmittance, which is convenient for the light emission of the display screen 32, and after a long period of use, the ultra-thin glass cover sheet will not cause problems such as discoloration.
  • the cover plate 329 may also be a flexible transparent cover plate, such as a transparent PET film layer, PI film layer, or the like.
  • the screen body 320 includes a light emitting device layer 323, a polarizer layer 324 stacked on the front surface of the light emitting device layer 323, and a transparent optical adhesive layer 322 attached to the A touch module layer 325 on the front of the polarizer layer 324, a support film layer 326 attached to the back of the light emitting device layer 323 through a transparent optical adhesive layer 322, and an ultra-thin double-sided adhesive layer 327 attached A second heat dissipation layer 328 coupled to the back of the supporting film layer 326.
  • the cover plate 329 is attached to the front surface of the touch module layer 325 through the optical adhesive layer 322, that is, the side of the first heat dissipation layer 321 on the cover plate 329 facing away from the cover plate 329 is attached through the optical adhesive layer 322 Combined with the front of the touch module layer 325.
  • the polarizer layer 324, the optical adhesive layer 322 and the touch module layer 325 are all transparent and can be transmitted by infrared rays, and the light emitting device layer 323, the support film layer 326 and the double-sided adhesive layer 327 can be transmitted by infrared rays .
  • the supporting film layer 326 may be made of PET, PI or other materials.
  • the material of the second heat dissipation layer 328 may be the same as or different from the material of the first heat dissipation layer 321. In this embodiment, the material of the second heat dissipation layer 328 is the same as the material of the first heat dissipation layer 321.
  • the second heat dissipation layer 328 is also made of a coating material with high infrared emissivity, and the infrared emissivity of the coating of the second heat dissipation layer 328 is greater than or equal to 0.95.
  • the second heat dissipation layer 328 may be a graphene coating or a graphene thin film layer.
  • the second heat dissipation layer 328 is a graphene film layer attached to the back of the support film layer 326 by double-sided tape.
  • the second heat dissipation layer 328 is used to convert the heat conducted by the screen body 320 into infrared rays, which are emitted directly or through the metal middle frame 26.
  • the second heat dissipation layer 328 may be a graphene coating applied on the back of the support film layer 326.
  • the second heat dissipation layer 328 may be a flexible graphite sheet stacked on the back of the support film layer 326.
  • the second heat dissipation layer 328 may be a carbon nanotube coating or a carbon nanotube film disposed on the back of the support film layer 326.
  • the material of the second heat dissipation layer 328 may also be one or more of copper oxide, aluminum oxide, copper nitride, aluminum nitride, and graphene.
  • the second heat dissipation layer 328 is deposited on the back of the screen body 320 by vacuum plating or vapor deposition.
  • the support piece 36 is disposed between the metal middle frame 26 and the screen body 320. Specifically, one side of the support piece 36 is attached to the front surface of the metal middle frame 26. The opposite side of the supporting piece 36 is attached to the second heat dissipation layer 328 of the screen body 320 corresponding to the non-bending area 33.
  • the heat generated by the electronic components 214 is conducted to the metal middle frame 26 and is dissipated through the metal middle frame 26.
  • the second heat dissipation layer 328 conducts the heat of the screen body 320 through the support sheet 36 Go to the metal middle frame 26 and distribute it to the outside world.
  • a protective sheet 252 is also provided between the hinge 25 and the screen 320.
  • the protection sheet 252 is disposed on the front surface of the hinge 25. Specifically, the protection sheet 252 is fixed to the front surface of the hinge 25 by welding, clamping, or gluing.
  • the protective sheet 252 is used to protect the screen body 320 and prevent the back of the screen body 320 from being damaged.
  • the protective sheet 252 is a flexible support sheet.
  • the protective sheet 252 may be a thin metal sheet such as copper foil, liquid metal sheet, memory alloy sheet, plastic sheet, or other thin sheet made of suitable materials. In this embodiment, the protective sheet 252 is a liquid metal sheet.
  • liquid metal in this application refers to heating the alloy to a molten state and then cooling at an ultra-fast cooling rate, so that the alloy lattice solidifies before the crystals are ordered and solidified, because it is in an amorphous state, like glass, so it is also called It is amorphous alloy, liquid metal or metallic glass.
  • the characteristics of liquid metal are long-range disorder (short-range order), metastable state, isotropic physical properties to a certain extent, no exact melting point, glass transition temperature point, etc. It has the characteristics of solid, metal, and glass. Under certain conditions, it has high strength, high hardness, plasticity, heat conduction and wear resistance.
  • the liquid metal referred to in the present invention is substantially solid at normal temperature, except that some of its characteristics are close to liquid, so it is called liquid metal.
  • the liquid metal may be an alloy material of one or more materials of copper, titanium, iron, zirconium, silver, nickel, gallium, gold, antimony, cadmium, zinc, indium, silicon, etc.
  • the specific metal is preferably obtained at a lower Elastic modulus, hardness, elongation and other mechanical properties.
  • the reason why the liquid metal sheet is used as the protective sheet 252 in this embodiment is that the liquid metal sheet has better wear resistance.
  • the protective sheet 252 can effectively resist the friction generated by the hinge 25 on the display screen 32, and is less prone to wear.
  • the liquid metal can be selected from copper base, titanium base, iron base, zirconium base, silver base, nickel base, gallium base, gold base, antimony base, cadmium base, zinc base, indium base, silicon base and other liquid metals, and, compared with In the existing materials with lower elastic modulus, such as silica gel, foam, plastic, etc., the liquid metal has higher strength and better wear resistance, which can effectively support the flexible screen.
  • a gap 254 is provided between the front surface of the protection sheet 252 and the back surface of the display screen 32 corresponding to the bendable area 31.
  • the front surface of the protection sheet 252 and the second heat dissipation layer of the display screen 32 A gap 254 is provided between the 328, and the gap 254 may also be filled with a buffer material.
  • a gap is also provided between the front surface of the second heat dissipation layer 328 and the support film layer 326 corresponding to the bendable area 31.
  • the second heat dissipation layer 328 is adhered to the support film layer 326 through the glue in the two non-bending regions 33, and no double-sided adhesive is provided between the second heat dissipation layer 328 and the support film layer 326 in the bendable region 31
  • the layer 327 is kept in a hollow state; its purpose is to reduce the bending stress applied to the second heat dissipation layer 328 in the bendable region 31 during bending to prevent the second heat dissipation layer 328 from being damaged.
  • the bendable area 31 of the display screen 32 is bent with the hinge 25, and the protection sheet 252 and the display screen 32 are relatively moved and relatively close in areas on opposite sides of the bending axis of the bendable area 31, so that the heat dissipation space is compressed.
  • the bendable area 31 corresponding to the protective sheet 252 and the display screen 32 will compress the gap 254 to compensate for the length change caused by the difference between the inner and outer radii of the display screen 32 during bending, thereby reducing the
  • the display screen 32 corresponds to the damage to the display screen 32 caused by the bending internal stress of the bendable area 31.
  • the heat generated by the light emitting device layer 323 is conducted to the first heat dissipation layer 321 through the polarizer layer 324, the optical adhesive layer 322, and the touch module layer 325.
  • the first heat dissipation layer 321 converts heat into infrared rays to radiate heat through the cover plate 329, which improves the heat dissipation efficiency of the display screen 32.
  • the second heat dissipation layer 328 transfers the heat of the display screen 32 to the metal middle frame 26 and dissipates it through the metal middle frame 26.
  • the heat generated by the electronic component 214 is conducted to the metal middle frame 26, and the metal middle frame 26 dissipates the heat to the outside. Therefore, the electronic device 100 does not affect its heat dissipation efficiency when it is bent, and ensures that the electronic device 100 can work normally.
  • the protection sheet 252 and the display screen 32 are relatively moved away from each other in areas on opposite sides of the bending axis of the bendable area 31 Restore the cooling space.
  • the first heat dissipation layer 321 and the second heat dissipation layer 328 on the display device 30 of the present application can convert the heat generated during the operation of the electronic device 100 into infrared rays to radiate to the outside, improve the heat dissipation efficiency of the electronic device 100, and ensure the electronic device The normal work of 100 improves the user experience.
  • FIG. 5 is a schematic cross-sectional structural view of an electronic device in a second embodiment of the present application.
  • the structure of the second embodiment of the electronic device of the present application is similar to the structure of the first embodiment, except that in the second embodiment, the front surface of the protective sheet 252 corresponds to the display screen 32.
  • the gap 254 of the bendable area 31 is filled with elastic thermal conductive adhesive 255, and the gap between the front surface of the second heat dissipation layer 328 and the supporting film layer 326 corresponding to the bendable area 31 is also filled with elastic thermal conductive adhesive 255.
  • the thermally conductive adhesive 255 can transmit infrared rays.
  • the thermally conductive adhesive 255 can not only quickly transfer heat to the metal middle frame 26, so that the metal middle frame 26 can radiate heat to the outside world.
  • the heat conductive adhesive 255 also has the second heat dissipation layer 328 It has a supporting effect and has a buffering effect when the display screen 32 is bent.
  • FIG. 6 is a schematic cross-sectional structural view of an electronic device in a third embodiment of the present application
  • FIG. 7 is an enlarged view of part VII in FIG. 6.
  • the structure of the third embodiment of the electronic device of the present application is similar to the structure of the first embodiment, except that in the third embodiment, the second heat dissipation layer 328 includes a plurality of thermally conductive radiation areas 3281 that are spaced apart from each other.
  • the heat conducting radiation areas 3281 are respectively disposed on the back of the screen body 320 corresponding to the non-bending area 33.
  • the back surface of the screen body 320 is respectively provided with a heat conduction radiation area 3281 corresponding to the high-heat-generating electronic components 214 in the first frame body 21 and the second frame body 23.
  • the heat generated by the highly heat-generating electronic components 214 in the first frame 21 and the second frame 23 is conducted to these heat conduction radiation areas 3281 through the metal middle frame 26 and the support sheet 36, and the heat conduction radiation areas 3281 convert the heat Heat radiation for infrared radiation to achieve rapid heat dissipation.
  • the second heat dissipation layer 328 is divided into several heat conductive radiation areas 3281, which not only satisfies the rapid heat dissipation, but also saves part of the material of the second heat dissipation layer 328.
  • FIG. 8 is a schematic cross-sectional structural view of an electronic device in a fourth embodiment of the present application.
  • the structure of the fourth embodiment of the electronic device of the present application is similar to the structure of the first embodiment, except that in the fourth embodiment, the second heat dissipation layer 328 is only provided on the back of the screen body 320 corresponding to the first
  • the area of a frame 21 and the second frame 23, that is, the area on the back of the screen 320 corresponding to the hinge 25, is not provided with the second heat dissipation layer 328. Since the hinge 25 does not generate heat, the area of the second heat dissipation layer 328 corresponding to the hinge 25 can be omitted.
  • the heat generated during the operation of the electronic components 214 in the first frame 21 and the second frame 23 is radiated to the outside through the metal middle frame 26.
  • the second heat dissipation layer 328 transfers the heat of the display screen 32 to the metal middle frame 26 and dissipates it through the metal middle frame 26.
  • the second heat dissipation layer 328 in this embodiment is only provided on the area corresponding to the first frame 21 and the second frame 23, which not only meets the requirement of rapid heat dissipation, but also saves part of the material of the second heat dissipation layer 328.
  • FIG. 9 is a schematic cross-sectional structure diagram of an electronic device in a fifth embodiment of the present application
  • FIG. 10 is a schematic cross-sectional structure diagram of a bent state of the electronic device in a fifth embodiment of the present application
  • the structure of the fifth embodiment of the electronic device of the present application is similar to the structure of the fourth embodiment, except that in the fifth embodiment, the gap 254 between the protection sheet 252 and the support film layer 326 is provided
  • There is a buffer member 257 which has elasticity, and is elastically deformed when pressed by an external force.
  • the equivalent elastic modulus of the cushioning member 257 is lower than the elastic modulus of the display screen 32.
  • the buffer member 257 is used for the length compensation of the bending of the bendable region 31 by the display device 30, that is, when the display device 30 is bent along the bendable region 31, the display screen 32 will Compress the cushioning member 257 to elastically deform the cushioning member 257 and make the thickness thinner to compensate for the length change caused by the difference between the inner and outer radii during the bending of the display device 30, thereby reducing the bending of the display screen 32 Stress can prevent the display screen 32 from being damaged.
  • the buffer member 257 is a plurality of buffers fixed between the protective sheet 252 and the display screen 32 corresponding to the one or more layers of the flexible region 31 with different compression ratios and rebound rates body. These buffer bodies are spaced apart from each other to facilitate the elastic deformation when the buffer bodies are pressed and the thickness becomes thinner.
  • the buffer body is a buffer strip made of an elastic material, and the buffer strip extends in the direction of the bending axis of the display screen 32.
  • the buffer strip may be at least any one of elastic silicone strips, foam plastic strips, foam strips or rubber strips.

Abstract

An electronic device (100), comprising a shell (20), a plurality of electronic components (214) provided in the shell (20), and a display device (30). The display device (30) comprises a display screen (32) and a support sheet (36) attached to the back surface of the display screen (32). The display screen (30) comprises a screen body (320) and a cover plate (329) stacked on the front surface of the screen body (320). A transparent first heat dissipation layer (321) is provided between the screen body (320) and the cover plate (329). The first heat dissipation layer (321) is used for converting heat generated when the screen body (320) works into infrared rays and radiating the infrared rays to the outside by means of the cover plate (329). Heat generated by the plurality of electronic components (214) is converted into infrared rays to be radiated by means of the first heat dissipation layer (321) of the display device (30).

Description

显示屏、显示装置及电子装置Display screen, display device and electronic device 技术领域Technical field
本申请涉及电子设备的显示装置领域，尤其涉及一种显示屏、设置有所述显示屏的显示装置，以及设置有所述柔性显示装置的电子装置。The present application relates to the field of display devices of electronic equipment, and in particular, to a display screen, a display device provided with the display screen, and an electronic device provided with the flexible display device.
背景技术Background technique
显示屏由于其自身具有可弯曲、轻便、低功耗等性能而能被广泛应用在多种可弯曲的显示类电子产品上。现有的显示屏一般由多个层叠并通过光学胶或双面胶贴合的物理叠层组成，这些物理叠层由高分子薄膜材料制成，这些由高分子薄膜材料制成的物理层的导热性较差，导热系数较小。显示屏的主要发热层为发光器件层，所述发光器件层位于显示屏的中部，即发光器件层的正面及反面均层叠有由高分子薄膜材料制成的物理层，因此，所述发光器件层工作时生产的热量不易传导出柔性屏，散热效果较差，从而影响显示屏的正常工作。The display screen can be widely used in a variety of flexible display electronic products due to its own properties such as flexibility, lightness, and low power consumption. Existing display screens are generally composed of multiple physical stacks laminated and bonded by optical adhesive or double-sided adhesive. These physical stacks are made of polymer film materials. These physical layers are made of polymer film materials. The thermal conductivity is poor, and the thermal conductivity is small. The main heating layer of the display screen is a light-emitting device layer, and the light-emitting device layer is located in the middle of the display screen, that is, the front and back sides of the light-emitting device layer are laminated with physical layers made of polymer thin film materials. The heat produced when the layer is working is not easy to conduct out of the flexible screen, and the heat dissipation effect is poor, thereby affecting the normal operation of the display screen.
发明内容Summary of the invention
本申请提供一种散热效果佳的显示屏、设置有所述显示屏的显示装置，以及设置有所述显示装置的电子装置。The application provides a display screen with good heat dissipation effect, a display device provided with the display screen, and an electronic device provided with the display device.
本申请提供的一种显示屏，其包括屏体及层叠于所述屏体的正面的盖板，所述屏体与所述盖板之间设置有透明的第一散热层，所述第一散热层用于将所述屏体工作时产生的热量转化为红外线经所述盖板辐射至外部。A display screen provided by the present application includes a screen body and a cover plate stacked on the front of the screen body, and a transparent first heat dissipation layer is provided between the screen body and the cover plate, the first The heat dissipation layer is used to convert the heat generated during the operation of the screen body into infrared rays to be radiated to the outside through the cover plate.
本申请还提供一种显示装置，其包括显示屏，以及贴接于所述显示屏的背面用于导热的支撑片，所述显示屏包括屏体及层叠于所述屏体的正面的盖板，所述屏体与所述盖板之间设置有透明的第一散热层，所述第一散热层用于将所述屏体工作时产生的热量转化为红外线经所述盖板辐射至外部。The present application also provides a display device, which includes a display screen and a support sheet attached to the back of the display screen for heat conduction, the display screen includes a screen body and a cover plate stacked on the front of the screen body , A transparent first heat dissipation layer is provided between the screen body and the cover plate, the first heat dissipation layer is used to convert the heat generated during the operation of the screen body into infrared rays and radiate to the outside through the cover plate .
本申请还提供一种电子装置，其包括壳体及设置于所述壳体内的若干电子元器件，以及显示装置，所述显示装置包括显示屏及贴接于所述显示屏的背面的支撑片，所述显示屏包括屏体及层叠于所述屏体的正面的盖板，所述屏体与所述盖板之间设置有透明的第一散热层，所述第一散热层用于将所述屏体工作 时产生的热量转化为红外线经所述盖板辐射至外部，若干所述电子元器件产生的热量经所述显示装置的第一散热层转化为红外线辐射散发。The present application also provides an electronic device, which includes a housing and a number of electronic components disposed in the housing, and a display device, the display device includes a display screen and a support sheet attached to the back of the display screen The display screen includes a screen body and a cover plate stacked on the front of the screen body. A transparent first heat dissipation layer is provided between the screen body and the cover plate. The heat generated during the operation of the screen body is converted into infrared rays and radiated to the outside through the cover plate, and the heat generated by several electronic components is converted into infrared radiation through the first heat dissipation layer of the display device.
本申请电子装置的显示屏的屏体与盖板之间设置有透明的第一散热层，在电子装置工作时，屏体产生的热量，通过第一散热层转化为红外线经盖板将红外线辐射至外界，从而能使所述屏体产生的热量快速均匀地散发至所述显示屏外，提高了所述显示屏的散热效果，以确保显示屏正常工作。A transparent first heat dissipation layer is provided between the screen body and the cover of the display screen of the electronic device of the present application. During operation of the electronic device, the heat generated by the screen body is converted into infrared rays through the first heat dissipation layer and the infrared rays are radiated through the cover To the outside world, so that the heat generated by the screen body can be quickly and evenly distributed outside the display screen, and the heat dissipation effect of the display screen is improved to ensure the normal operation of the display screen.
附图说明BRIEF DESCRIPTION
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，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。In order to more clearly explain the technical solutions in the embodiments of the present invention, the drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. Those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts.
图1是本申请第一实施例中的电子装置的立体结构示意图。FIG. 1 is a schematic perspective view of the electronic device in the first embodiment of the present application.
图2是图1中沿II-II线的剖视图。FIG. 2 is a cross-sectional view taken along line II-II in FIG. 1.
图3是图2中III部分的放大图。Fig. 3 is an enlarged view of part III in Fig. 2.
图4是本申请第一实施例中的电子装置的弯折状态剖视结构示意图。4 is a schematic cross-sectional structure diagram of a bent state of an electronic device in the first embodiment of the present application.
图5是本申请第二实施例中的电子装置的剖视结构示意图。5 is a schematic cross-sectional structure diagram of an electronic device in a second embodiment of the present application.
图6是本申请第三实施例中的电子装置的剖视结构示意图。6 is a schematic cross-sectional structural view of an electronic device in a third embodiment of the present application.
图7是图6中VII部分的放大图。7 is an enlarged view of part VII in FIG. 6.
图8是本申请第四实施例中的电子装置的剖视结构示意图。8 is a schematic cross-sectional structural view of an electronic device in a fourth embodiment of the present application.
图9是本申请第五实施例中的电子装置的剖视结构示意图。9 is a schematic cross-sectional structure diagram of an electronic device in a fifth embodiment of the present application.
图10是本申请第五实施例中的电子装置的弯折状态剖视结构示意图。10 is a schematic cross-sectional structure diagram of a bent state of an electronic device in a fifth embodiment of the present application.
具体实施方式detailed description
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.
本发明实施例的描述中，需要理解的是，术语“上”、“下”“左”“右”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描 述本发明和简化描述，而不是暗示或指示所指的装置或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发明的限制。In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated by the terms “upper”, “lower”, “left” and “right” is based on the orientation or positional relationship shown in the drawings, only for convenience The present invention is described and the description simplified, rather than implying or indicating that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be construed as limiting the present invention.
本发明实施例的描述中，需要理解的是，术语“厚度”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是暗示或指示所指的装置或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发明的限制。In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated by the term “thickness” or the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, not to imply Or the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.
请一并参阅图1至图3，图1是本申请第一实施例中的电子装置的立体结构示意图；图2是图1中沿II-II线的剖视图；图3是图2中III部分的放大图。本申请的第一实施例中的电子装置100包括一壳体20及设置于所述壳体20上的一显示装置30。所述壳体20包括一第一框体21、一第二框体23及连接于所述第一框体21与所述第二框体23之间的一铰链25。所述显示装置30包括一显示屏32及设置于所述显示屏32背面的支撑片36。显示屏32包括一屏体320，层叠于所述屏体320的正面的具有柔性的一盖板329。所述盖板329透明且能透红外线，所述屏体320与所述盖板329之间设置有透明的一第一散热层321，所述第一散热层321用于将所述屏体320的热量转化为红外线经所述盖板329辐射散发至所述显示屏32的外部，从而能使所述屏体320的热量能快速地散发至空中。Please refer to FIGS. 1 to 3 together. FIG. 1 is a schematic perspective view of the electronic device in the first embodiment of the present application; FIG. 2 is a cross-sectional view taken along line II-II in FIG. 1; FIG. 3 is a part III in FIG. Enlarged image. The electronic device 100 in the first embodiment of the present application includes a housing 20 and a display device 30 disposed on the housing 20. The casing 20 includes a first frame 21, a second frame 23 and a hinge 25 connected between the first frame 21 and the second frame 23. The display device 30 includes a display screen 32 and a supporting piece 36 disposed on the back of the display screen 32. The display screen 32 includes a screen body 320 and a flexible cover plate 329 stacked on the front of the screen body 320. The cover plate 329 is transparent and transparent to infrared rays, and a transparent first heat dissipation layer 321 is provided between the screen body 320 and the cover plate 329, and the first heat dissipation layer 321 is used to connect the screen body 320 The heat is converted into infrared radiation through the cover plate 329 and radiated to the outside of the display screen 32, so that the heat of the screen body 320 can be quickly radiated into the air.
本申请中的所述显示屏32正面指面朝所述显示屏32的出光面，显示屏32背面指背朝所述出光面的面。In this application, the front side of the display screen 32 faces the light exit surface of the display screen 32, and the back side of the display screen 32 faces the back surface facing the light exit surface.
本实施例中，所述显示屏32为显示屏，所述屏体320为柔性屏体。In this embodiment, the display screen 32 is a display screen, and the screen body 320 is a flexible screen body.
本实施例中，所述电子装置100为手机。可以理解，在其它实施例中，电子装置100可以是但不限于无线电电话、寻呼机、Web浏览器、记事簿、日历以及/或全球定位***(GPS)接收器的PDA。In this embodiment, the electronic device 100 is a mobile phone. It can be understood that in other embodiments, the electronic device 100 may be, but not limited to, a PDA of a radiotelephone, pager, web browser, memo pad, calendar, and / or global positioning system (GPS) receiver.
本申请电子装置100的显示屏32的屏体320与盖板329之间设置有透明的第一散热层321，在电子装置100工作时，屏体320产生的热量，通过第一散热层321转化为红外线，并经盖板329将红外线辐射至外界，从而能使所述屏体320产生的热量快速均匀地散发至所述显示屏32外，提高了所述显示屏32的散热效果，以确保显示屏32正常工作。A transparent first heat dissipation layer 321 is provided between the screen body 320 and the cover plate 329 of the display screen 32 of the electronic device 100 of the present application. When the electronic device 100 works, the heat generated by the screen body 320 is converted by the first heat dissipation layer 321 It is infrared rays, and radiates infrared rays to the outside through the cover plate 329, so that the heat generated by the screen body 320 can be quickly and evenly distributed to the outside of the display screen 32, and the heat dissipation effect of the display screen 32 is improved to ensure The display 32 works normally.
第一框体21及第二框体23内设置有金属中框26，所述显示装置30设置于所述金属中框26上。所述第一框体21内设置有主板212、设置于所述主板 212上面朝所述金属中框26的若干电子元器件214、以及设置于所述第一框体21内的电池215。若干所述电子元器件214可以是设置于主板212上的CPU芯片、电源管理芯片、充电集成电路芯片等发热芯片，在所述电子装置100工作时，这些发热芯片能产生较大的热量，需要及时进行散热，防止电子元器件214发热过高，以确保各电子元器件214的正常工作。A metal middle frame 26 is provided in the first frame 21 and the second frame 23, and the display device 30 is provided on the metal middle frame 26. The first frame 21 is provided with a main board 212, a number of electronic components 214 provided on the main board 212 facing the metal middle frame 26, and a battery 215 provided in the first frame 21. Some of the electronic components 214 may be heating chips such as a CPU chip, a power management chip, a charging integrated circuit chip, etc., which are installed on the motherboard 212. When the electronic device 100 is in operation, these heating chips can generate a large amount of heat and require Dissipate heat in time to prevent the electronic components 214 from overheating, so as to ensure the normal operation of each electronic component 214.
所述金属中框26的一侧面贴接于所述显示装置30的背面，所述金属中框26的另一侧面贴接于若干所述电子元器件214。电子元器件214工作时产生的热量传导至所述金属中框26，所述金属中框26将热量射出，从而提高各电子元器件214的散热效率。One side of the metal middle frame 26 is attached to the back of the display device 30, and the other side of the metal middle frame 26 is attached to a plurality of electronic components 214. The heat generated during the operation of the electronic component 214 is conducted to the metal middle frame 26, and the metal middle frame 26 emits the heat, thereby improving the heat dissipation efficiency of each electronic component 214.
电子元器件214与金属中框26之间设置有导热件216，所述电子元器件214工作时产生的热量经过所述导热件216传导至所述金属中框26上。本实施例中，所述导热件216为导热垫或导热膏。A heat conducting member 216 is provided between the electronic component 214 and the metal middle frame 26, and the heat generated during the operation of the electronic component 214 is conducted to the metal middle frame 26 through the heat conducting member 216. In this embodiment, the heat conducting member 216 is a heat conducting pad or a heat conducting paste.
其中一部分电子元器件214外覆盖有屏蔽罩217，所述屏蔽罩217与所述电子元器件214之间设置有导热件216如导热垫或导热膏，所述屏蔽罩217与金属中框26之间设置有导热垫或导热膏。所述电子元器件214工作时产生的热量经过所述导热垫或导热膏传导至屏蔽罩217，再经屏蔽罩217与金属中框26之间的导热垫或导热膏传导至所述金属中框26上。A part of the electronic components 214 is covered with a shielding cover 217. Between the shielding cover 217 and the electronic components 214, a heat conducting member 216 such as a thermal pad or a thermal paste is provided. The shielding cover 217 and the metal middle frame 26 There is a thermal pad or thermal paste. The heat generated during the operation of the electronic component 214 is conducted to the shielding case 217 through the thermal pad or the thermal paste, and then to the metal middle frame through the thermal pad or the thermal paste between the shielding case 217 and the metal middle frame 26 26 on.
所述第二框体23内也可以设置电路板、电池或电子元器件等，所述电路板、电池或电子元器件工作时产生的热量也可以传导至金属中框26，所述金属中框26将热量射出。The second frame 23 may also be provided with a circuit board, a battery or an electronic component, etc. The heat generated when the circuit board, the battery or the electronic component is working can also be conducted to the metal middle frame 26, the metal middle frame 26 shoot out the heat.
所述显示屏32设置有对应所述铰链25的一可折弯区域31及位于所述可折弯区域31相对的两侧的非折弯区域33。两个所述非折弯区域33分别对应第一框体21及第二框体23。The display screen 32 is provided with a bendable area 31 corresponding to the hinge 25 and non-bendable areas 33 on opposite sides of the bendable area 31. The two non-bending regions 33 respectively correspond to the first frame body 21 and the second frame body 23.
所述第一散热层321由具有高红外发射率的涂层材料制成，所述第一散热层321的涂层红外发射率大于或等于0.95。具体的，在发热量较高的屏体320的正面设置有所述第一散热层321，由于所述第一散热层321由高红外发射率的涂层材料制成，因此，在屏体320的正面设置红外高发射率的涂层材料制成的第一散热层321提高屏体320表面的散热效率。The first heat dissipation layer 321 is made of a coating material with high infrared emissivity, and the infrared emissivity of the coating of the first heat dissipation layer 321 is greater than or equal to 0.95. Specifically, the first heat dissipation layer 321 is provided on the front of the screen body 320 with high heat generation. Since the first heat dissipation layer 321 is made of a coating material with high infrared emissivity, the screen body 320 The front surface is provided with a first heat dissipation layer 321 made of an infrared high emissivity coating material to improve the heat dissipation efficiency of the screen body 320 surface.
所述第一散热层321可以是透明的石墨烯涂层，也可以是透明的石墨烯薄膜层。本实施例中，所述第一散热层321是涂设于所述盖板329面朝所述屏体 320的侧面上的透明的石墨烯涂层，所述石墨烯涂层覆盖整个盖板329的面朝所述屏体320的侧面，以形成一层均匀的石墨烯涂层。具体的，所述石墨烯涂层通过真空镀或蒸镀的方式镀置于所述盖板329面朝屏体320的表面上。由于所述石墨烯涂层为高红外发射率的涂层，所述石墨烯涂层的表面结构为晶体结构，因此，所述石墨烯涂层将热量转换成红外线的效率较高。当所述电子装置100工作时，所述屏体320产生的热量通过所述第一散热层321能转化成红外线，穿过所述盖板329均匀地发散至外部。The first heat dissipation layer 321 may be a transparent graphene coating or a transparent graphene film layer. In this embodiment, the first heat dissipation layer 321 is a transparent graphene coating applied on the side of the cover plate 329 facing the screen body 320, and the graphene coating covers the entire cover plate 329 Is facing the side of the screen body 320 to form a uniform graphene coating. Specifically, the graphene coating is deposited on the surface of the cover plate 329 facing the screen body 320 by vacuum plating or vapor deposition. Since the graphene coating is a coating with a high infrared emissivity, and the surface structure of the graphene coating is a crystal structure, the graphene coating has a high efficiency in converting heat into infrared rays. When the electronic device 100 is in operation, the heat generated by the screen body 320 can be converted into infrared rays through the first heat dissipation layer 321 and evenly radiated to the outside through the cover plate 329.
所述第一散热层321胶接于所述屏体320的正面，具体的，所述盖板329通过透明的光学胶层322贴合于所述屏体320的正面，即所述盖板329上涂设有第一散热层321的侧面通过所述光学胶层322贴合于所述屏体320的正面。所述光学胶层322能透过红外线且导热性能较强。所述屏体320产生的热量经所述光学胶层322传导至所述第一热辐射散热层321，所述第一散热层321将热量转化成红外线，穿过所述盖板329均匀地发散至外界。The first heat dissipation layer 321 is glued to the front surface of the screen body 320. Specifically, the cover plate 329 is attached to the front surface of the screen body 320 through the transparent optical adhesive layer 322, that is, the cover plate 329 The side coated with the first heat dissipation layer 321 is attached to the front of the screen body 320 through the optical adhesive layer 322. The optical adhesive layer 322 can transmit infrared rays and has strong thermal conductivity. The heat generated by the screen body 320 is conducted to the first heat radiation heat dissipation layer 321 through the optical adhesive layer 322, the first heat dissipation layer 321 converts the heat into infrared rays, and radiates evenly through the cover plate 329 To the outside world.
在其他实施例中，所述第一散热层321可以是制成透明的石墨烯薄膜层，所述石墨烯薄膜层层叠于所述屏体320与所述盖板329之间，所述石墨烯薄膜层覆盖整个屏体320的正面。具体的，所述第一散热层321通过光学胶层322贴合于屏体320的正面。In other embodiments, the first heat dissipation layer 321 may be a transparent graphene thin film layer, the graphene thin film layer is laminated between the screen body 320 and the cover plate 329, the graphene The thin film layer covers the entire front of the screen body 320. Specifically, the first heat dissipation layer 321 is attached to the front of the screen body 320 through the optical adhesive layer 322.
在其他实施例中，所述第一散热层321也可以是涂设于所述屏体320的正面上的透明的石墨烯涂层。In other embodiments, the first heat dissipation layer 321 may also be a transparent graphene coating applied on the front surface of the screen body 320.
在其他实施例中，所述第一散热层321可以是透明的碳纳米管涂层，即所述第一散热层321是涂设于所述盖板329面朝所述屏体320的侧面上的透明的碳纳米管涂层，所述碳纳米管涂层覆盖整个盖板329的面朝所述屏体320的侧面，以形成一层均匀的碳纳米管涂层。由于所述碳纳米管涂层为高导热率的涂层，因此，所述碳纳米管涂层将热量转换成红外线的效率较高，能将所述屏体320产生的热量转化成红外线经盖板329射出，以提高所述屏体320的散热效率。In other embodiments, the first heat dissipation layer 321 may be a transparent carbon nanotube coating, that is, the first heat dissipation layer 321 is coated on the side of the cover plate 329 facing the screen body 320 Transparent carbon nanotube coating, the carbon nanotube coating covers the entire side of the cover plate 329 facing the screen body 320 to form a uniform layer of carbon nanotube coating. Since the carbon nanotube coating is a coating with high thermal conductivity, the carbon nanotube coating has a high efficiency of converting heat into infrared rays, and can convert the heat generated by the screen body 320 into infrared rays through the cover The board 329 is ejected to improve the heat dissipation efficiency of the screen body 320.
在其他实施例中，所述第一散热层321可以是制成透明的碳纳米管薄膜层，所述碳纳米管薄膜层层叠于所述屏体320与所述盖板329之间，所述碳纳米管薄膜层覆盖整个屏体320的正面。具体的，所述第一散热层321通过光学胶层贴合于屏体320的正面。In other embodiments, the first heat dissipation layer 321 may be a transparent carbon nanotube film layer, and the carbon nanotube film layer is laminated between the screen body 320 and the cover plate 329. The carbon nanotube film layer covers the entire front surface of the screen body 320. Specifically, the first heat dissipation layer 321 is attached to the front surface of the screen body 320 through an optical adhesive layer.
在其他实施例中，所述第一散热层321也可以是涂设于所述屏体320的正面的透明的碳纳米管涂层。In other embodiments, the first heat dissipation layer 321 may also be a transparent carbon nanotube coating applied on the front of the screen body 320.
在其他实施例中，所述盖板329的正面及背面均涂设有所述第一散热层321。In other embodiments, the first heat dissipation layer 321 is coated on both the front and back of the cover 329.
本实施例中，所述盖板329是透可见光和红外线的、具有柔性且能弯曲的薄片，本实施例中，所述盖板329为超薄玻璃，所述超薄玻璃盖片的厚度为微米级，具体的，所述超薄玻璃盖板329的厚度范围为5微米至80微米之间(含本数)。In this embodiment, the cover plate 329 is a flexible and bendable sheet that transmits visible light and infrared rays. In this embodiment, the cover plate 329 is ultra-thin glass, and the thickness of the ultra-thin glass cover sheet is On the order of micrometers, specifically, the thickness of the ultra-thin glass cover plate 329 ranges from 5 microns to 80 microns (inclusive).
本实施例中选用超薄玻璃作为盖板329的原因在于超薄玻璃盖片具有较好的耐弯折性、高强度、高硬度等优点，当超薄玻璃盖片贴设于显示屏32的正面时，所述超薄玻璃盖片不仅可以随所述显示屏32弯曲或展平，并且可以有效地抵御外部物件对超薄玻璃盖片划伤，不易出现磨损的情况。其次，超薄玻璃盖片的弹性模量较低，可将其直接粘贴在显示屏32的正面，在显示装置30弯曲时可跟随显示屏32一起同步或近似同步拉伸，从而避免显示装置30在弯曲时由于拉伸幅度差异较大导致出现破损的情况。另一方面，所述超薄玻璃盖片的透光率高，方便所述显示屏32的光线的射出，且长时间使用后，所述超薄玻璃盖片也不会出现变色等问题。The reason why the ultra-thin glass is used as the cover plate 329 in this embodiment is that the ultra-thin glass cover sheet has the advantages of good bending resistance, high strength and high hardness. When the ultra-thin glass cover sheet is attached to the display screen 32 On the front side, the ultra-thin glass cover sheet can not only bend or flatten with the display screen 32, but also effectively resist the scratching of the ultra-thin glass cover sheet by external objects, which is not prone to wear. Secondly, the ultra-thin glass cover sheet has a low modulus of elasticity, and it can be directly pasted on the front of the display screen 32, and can be synchronized or nearly synchronized with the display screen 32 when the display device 30 is bent, thereby avoiding the display device 30 In the case of bending, there is a case of damage due to the large difference in tensile amplitude. On the other hand, the ultra-thin glass cover sheet has a high light transmittance, which is convenient for the light emission of the display screen 32, and after a long period of use, the ultra-thin glass cover sheet will not cause problems such as discoloration.
在其他实施例中，所述盖板329也可以是柔性的透明盖板，比如透明的PET膜层、PI膜层等。In other embodiments, the cover plate 329 may also be a flexible transparent cover plate, such as a transparent PET film layer, PI film layer, or the like.
如图2及图3所示，所述屏体320包括一发光器件层323、层叠于所述发光器件层323的正面的一偏光片层324、通过透明的光学胶层322贴合于所述偏光片层324的正面的一触控模组层325、通过透明的光学胶层322贴合于所述发光器件层323的背面的支撑膜层326，以及通过超薄的双面胶层327贴合于所述支撑膜层326的背面的一第二散热层328。所述盖板329通过光学胶层322贴合于触控模组层325的正面，即所述盖板329上的第一散热层321背朝所述盖板329的侧面通过光学胶层322贴合于触控模组层325的正面。所述偏光片层324、光学胶层322及触控模组层325均透明且能被红外线透过，所述发光器件层323、支撑膜层326及双面胶层327均能被红外线透过。所述支撑膜层326可以是PET或PI等材料制成。As shown in FIGS. 2 and 3, the screen body 320 includes a light emitting device layer 323, a polarizer layer 324 stacked on the front surface of the light emitting device layer 323, and a transparent optical adhesive layer 322 attached to the A touch module layer 325 on the front of the polarizer layer 324, a support film layer 326 attached to the back of the light emitting device layer 323 through a transparent optical adhesive layer 322, and an ultra-thin double-sided adhesive layer 327 attached A second heat dissipation layer 328 coupled to the back of the supporting film layer 326. The cover plate 329 is attached to the front surface of the touch module layer 325 through the optical adhesive layer 322, that is, the side of the first heat dissipation layer 321 on the cover plate 329 facing away from the cover plate 329 is attached through the optical adhesive layer 322 Combined with the front of the touch module layer 325. The polarizer layer 324, the optical adhesive layer 322 and the touch module layer 325 are all transparent and can be transmitted by infrared rays, and the light emitting device layer 323, the support film layer 326 and the double-sided adhesive layer 327 can be transmitted by infrared rays . The supporting film layer 326 may be made of PET, PI or other materials.
所述第二散热层328的材料与第一散热层321的材料可以相同，也可以不 同，本实施例中，所述第二散热层328的材料与第一散热层321的材料相同，即所述第二散热层328也由具有高红外发射率的涂层材料制成，所述第二散热层328的涂层的红外发射率大于或等于0.95。具体的，所述第二散热层328可以是石墨烯涂层，也可以是石墨烯薄膜层。所述第二散热层328是通过双面胶贴合于所述支撑膜层326背面的石墨烯膜层。所述第二散热层328用于将所述屏体320传导过来的热量转化成红外线，直接或经过金属中框26发射出。在其他实施例中，所述第二散热层328可以是涂设于所述支撑膜层326背面的石墨烯涂层。The material of the second heat dissipation layer 328 may be the same as or different from the material of the first heat dissipation layer 321. In this embodiment, the material of the second heat dissipation layer 328 is the same as the material of the first heat dissipation layer 321. The second heat dissipation layer 328 is also made of a coating material with high infrared emissivity, and the infrared emissivity of the coating of the second heat dissipation layer 328 is greater than or equal to 0.95. Specifically, the second heat dissipation layer 328 may be a graphene coating or a graphene thin film layer. The second heat dissipation layer 328 is a graphene film layer attached to the back of the support film layer 326 by double-sided tape. The second heat dissipation layer 328 is used to convert the heat conducted by the screen body 320 into infrared rays, which are emitted directly or through the metal middle frame 26. In other embodiments, the second heat dissipation layer 328 may be a graphene coating applied on the back of the support film layer 326.
在其他实施例中，所述第二散热层328可以是层叠于所述支撑膜层326背面的柔性石墨片。In other embodiments, the second heat dissipation layer 328 may be a flexible graphite sheet stacked on the back of the support film layer 326.
在其他实施例中，所述第二散热层328可以是设置于所述支撑膜层326背面的碳纳米管涂层或碳纳米管薄膜。In other embodiments, the second heat dissipation layer 328 may be a carbon nanotube coating or a carbon nanotube film disposed on the back of the support film layer 326.
在其他实施例中，所述第二散热层328的材料还可是氧化铜、氧化铝、氮化铜、氮化铝、石墨烯中的一种或多种。In other embodiments, the material of the second heat dissipation layer 328 may also be one or more of copper oxide, aluminum oxide, copper nitride, aluminum nitride, and graphene.
在其他实施例中，所述第二散热层328通过真空镀或蒸镀的方式镀置于所述屏体320的背面。In other embodiments, the second heat dissipation layer 328 is deposited on the back of the screen body 320 by vacuum plating or vapor deposition.
本实施列中，所述支撑片36设置于所述金属中框26与所述屏体320之间，具体的，所述支撑片36的一侧面贴合于所述金属中框26的正面，所述支撑片36相对的另一侧面贴合于所述屏体320的第二散热层328对应非弯折区33。所述电子装置100工作时，电子元器件214产生的热量传导至所述金属中框26，通过金属中框26散发出去，同时，第二散热层328将屏体320的热量通过支撑片36传导至金属中框26，再散发至外界。In this embodiment, the support piece 36 is disposed between the metal middle frame 26 and the screen body 320. Specifically, one side of the support piece 36 is attached to the front surface of the metal middle frame 26. The opposite side of the supporting piece 36 is attached to the second heat dissipation layer 328 of the screen body 320 corresponding to the non-bending area 33. When the electronic device 100 is in operation, the heat generated by the electronic components 214 is conducted to the metal middle frame 26 and is dissipated through the metal middle frame 26. At the same time, the second heat dissipation layer 328 conducts the heat of the screen body 320 through the support sheet 36 Go to the metal middle frame 26 and distribute it to the outside world.
所述铰链25与屏体320之间还设置有一保护片252。所述保护片252设置于所述铰链25的正面，具体的，所述保护片252通过焊接、卡接或胶接的方式固定于所述铰链25的正面。所述保护片252用于保护所述屏体320，防止屏体320的背面损坏。所述保护片252是柔性支撑片，所述保护片252可以是薄金属片如铜箔、液态金属片、记忆合金片、塑胶片或其他符合材料制成的薄片。本实施例中，所述保护片252是液态金属片。A protective sheet 252 is also provided between the hinge 25 and the screen 320. The protection sheet 252 is disposed on the front surface of the hinge 25. Specifically, the protection sheet 252 is fixed to the front surface of the hinge 25 by welding, clamping, or gluing. The protective sheet 252 is used to protect the screen body 320 and prevent the back of the screen body 320 from being damaged. The protective sheet 252 is a flexible support sheet. The protective sheet 252 may be a thin metal sheet such as copper foil, liquid metal sheet, memory alloy sheet, plastic sheet, or other thin sheet made of suitable materials. In this embodiment, the protective sheet 252 is a liquid metal sheet.
本申请中的所称液态金属是指将合金加热到熔融态，然后以超快的冷却速度冷却，使合金晶格来不及有序排列结晶便固化，因为是非结晶状态，像玻璃， 所以又被称为非晶合金、液态金属或金属玻璃。液态金属的特性是长程无序(短程有序)、亚稳态、一定程度上的物理特性各向同性、没有确切熔点、具有玻璃转化温度点等，具有固态、金属、玻璃的特性，可以在一定条件下具有高强度、高硬度、塑性、热传导和耐磨性等。也就是说，本发明所称的液态金属在常温实质上是固态的，只不过其某些特性接近液体，所以称之为液态金属。所述液态金属可以为铜、钛、铁、锆、银、镍、镓、金、锑、镉、锌、铟、硅等中一种或多种材料的合金材料，具体金属优选可获得更低的弹性模量、硬度、延伸性等其他力学性质。The term “liquid metal” in this application refers to heating the alloy to a molten state and then cooling at an ultra-fast cooling rate, so that the alloy lattice solidifies before the crystals are ordered and solidified, because it is in an amorphous state, like glass, so it is also called It is amorphous alloy, liquid metal or metallic glass. The characteristics of liquid metal are long-range disorder (short-range order), metastable state, isotropic physical properties to a certain extent, no exact melting point, glass transition temperature point, etc. It has the characteristics of solid, metal, and glass. Under certain conditions, it has high strength, high hardness, plasticity, heat conduction and wear resistance. That is to say, the liquid metal referred to in the present invention is substantially solid at normal temperature, except that some of its characteristics are close to liquid, so it is called liquid metal. The liquid metal may be an alloy material of one or more materials of copper, titanium, iron, zirconium, silver, nickel, gallium, gold, antimony, cadmium, zinc, indium, silicon, etc. The specific metal is preferably obtained at a lower Elastic modulus, hardness, elongation and other mechanical properties.
本实施例中选用液态金属片作为保护片252的原因在于液态金属片的耐磨性较佳。所述保护片252可以有效地抵御铰链25对显示屏32产生的摩擦，不易出现磨损的情况。液态金属可选用铜基、钛基、铁基、锆基、银基、镍基、镓基、金基、锑基、镉基、锌基、铟基、硅基等液态金属，并且，相比于现有的弹性模量更低的材料，如硅胶、泡棉、塑胶等，液态金属的强度更高，且耐磨性更佳，可有效地对柔性屏进行支撑。The reason why the liquid metal sheet is used as the protective sheet 252 in this embodiment is that the liquid metal sheet has better wear resistance. The protective sheet 252 can effectively resist the friction generated by the hinge 25 on the display screen 32, and is less prone to wear. The liquid metal can be selected from copper base, titanium base, iron base, zirconium base, silver base, nickel base, gallium base, gold base, antimony base, cadmium base, zinc base, indium base, silicon base and other liquid metals, and, compared with In the existing materials with lower elastic modulus, such as silica gel, foam, plastic, etc., the liquid metal has higher strength and better wear resistance, which can effectively support the flexible screen.
所述保护片252的正面与所述显示屏32的背面之间对应所述可折弯区域31设置间隙254，具体的，所述保护片252的正面与所述显示屏32的第二散热层328之间设置有间隙254，所述间隙254内也可以填充缓冲材料。所述第二散热层328的正面与支撑膜层326之间对应可折弯区域31也设置有间隙。具体地，第二散热层328在两个非弯折区域33通过胶体贴合至支撑膜层326，在可折弯区域31第二散热层328与支撑膜层326之间未设有双面胶层327，而是保持中空状态；其目的在于减小弯折时在可折弯区域31对于第二散热层328施加的弯折应力，防止第二散热层328受到损坏。A gap 254 is provided between the front surface of the protection sheet 252 and the back surface of the display screen 32 corresponding to the bendable area 31. Specifically, the front surface of the protection sheet 252 and the second heat dissipation layer of the display screen 32 A gap 254 is provided between the 328, and the gap 254 may also be filled with a buffer material. A gap is also provided between the front surface of the second heat dissipation layer 328 and the support film layer 326 corresponding to the bendable area 31. Specifically, the second heat dissipation layer 328 is adhered to the support film layer 326 through the glue in the two non-bending regions 33, and no double-sided adhesive is provided between the second heat dissipation layer 328 and the support film layer 326 in the bendable region 31 The layer 327 is kept in a hollow state; its purpose is to reduce the bending stress applied to the second heat dissipation layer 328 in the bendable region 31 during bending to prevent the second heat dissipation layer 328 from being damaged.
如图4所示，当所述电子装置100通过所述铰链25折弯时，所述显示屏32的可折弯区域31随所述铰链25弯折，所述保护片252与所述显示屏32位于所述可折弯区域31的弯折轴的相对两侧的区域内相对移动且相对靠近，使散热空间被压缩。弯曲时，所述保护片252与所述显示屏32对应所述可弯曲区域31会压缩间隙254而补偿所述显示屏32自身弯曲过程中的内外半径差引起的长度变化，从而能减少所述显示屏32对应所述可弯曲区域31的弯曲内应力对所述显示屏32的损伤。此时，所述电子装置100工作时，所述发光器件层323工作产生的热量经偏光片层324、光学胶层322、触控模组层325传导 至所述第一散热层321上，所述第一散热层321将热量转化成红外线穿过盖板329进行辐射散热，提高了所述显示屏32的散热效率。同时，第二散热层328将显示屏32的热量传递给金属中框26，通过金属中框26散发出去。电子元器件214产生的热量传导至所述金属中框26，所述金属中框26将热量散发至外界。因此，所述电子装置100在弯折状态时也不会影响其散热效率，确保电子装置100能正常工作。As shown in FIG. 4, when the electronic device 100 is bent through the hinge 25, the bendable area 31 of the display screen 32 is bent with the hinge 25, and the protection sheet 252 and the display screen 32 are relatively moved and relatively close in areas on opposite sides of the bending axis of the bendable area 31, so that the heat dissipation space is compressed. When bending, the bendable area 31 corresponding to the protective sheet 252 and the display screen 32 will compress the gap 254 to compensate for the length change caused by the difference between the inner and outer radii of the display screen 32 during bending, thereby reducing the The display screen 32 corresponds to the damage to the display screen 32 caused by the bending internal stress of the bendable area 31. At this time, when the electronic device 100 works, the heat generated by the light emitting device layer 323 is conducted to the first heat dissipation layer 321 through the polarizer layer 324, the optical adhesive layer 322, and the touch module layer 325. The first heat dissipation layer 321 converts heat into infrared rays to radiate heat through the cover plate 329, which improves the heat dissipation efficiency of the display screen 32. At the same time, the second heat dissipation layer 328 transfers the heat of the display screen 32 to the metal middle frame 26 and dissipates it through the metal middle frame 26. The heat generated by the electronic component 214 is conducted to the metal middle frame 26, and the metal middle frame 26 dissipates the heat to the outside. Therefore, the electronic device 100 does not affect its heat dissipation efficiency when it is bent, and ensures that the electronic device 100 can work normally.
当所述电子装置100通过所述铰链25展平时，所述保护片252与所述显示屏32位于所述可折弯区域31的弯折轴的相对两侧的区域内相对移动且相对远离，使散热空间恢复。When the electronic device 100 is flattened by the hinge 25, the protection sheet 252 and the display screen 32 are relatively moved away from each other in areas on opposite sides of the bending axis of the bendable area 31 Restore the cooling space.
本申请的显示装置30上的第一散热层321及第二散热层328能将电子装置100工作时生产的热量转化为红外线辐射出外部，提高了所述电子装置100的散热效率，确保电子装置100的正常工作，提高了用户体验。The first heat dissipation layer 321 and the second heat dissipation layer 328 on the display device 30 of the present application can convert the heat generated during the operation of the electronic device 100 into infrared rays to radiate to the outside, improve the heat dissipation efficiency of the electronic device 100, and ensure the electronic device The normal work of 100 improves the user experience.
请参阅图5，图5是本申请第二实施例中的电子装置的剖视结构示意图。本申请的电子装置的第二实施例的结构与第一实施例的结构相似，不同之处在于：在第二实施例中，所述保护片252的正面与所述显示屏32之间对应所述可折弯区域31的间隙254内填充有弹性的导热胶255，所述第二散热层328的正面与支撑膜层326之间对应可折弯区域31的间隙内也填充有弹性的导热胶255。导热胶255能透红外线，导热胶255不仅能将热量快速金属中框26上，以便所述金属中框26将热量散发至外界，其次所述导热胶255对所述第二散热层328也具有支撑作用，且在所述显示屏32弯折时具有缓冲作用。Please refer to FIG. 5, which is a schematic cross-sectional structural view of an electronic device in a second embodiment of the present application. The structure of the second embodiment of the electronic device of the present application is similar to the structure of the first embodiment, except that in the second embodiment, the front surface of the protective sheet 252 corresponds to the display screen 32. The gap 254 of the bendable area 31 is filled with elastic thermal conductive adhesive 255, and the gap between the front surface of the second heat dissipation layer 328 and the supporting film layer 326 corresponding to the bendable area 31 is also filled with elastic thermal conductive adhesive 255. The thermally conductive adhesive 255 can transmit infrared rays. The thermally conductive adhesive 255 can not only quickly transfer heat to the metal middle frame 26, so that the metal middle frame 26 can radiate heat to the outside world. Secondly, the heat conductive adhesive 255 also has the second heat dissipation layer 328 It has a supporting effect and has a buffering effect when the display screen 32 is bent.
请参阅图6及图7，图6是本申请第三实施例中的电子装置的剖视结构示意图；图7是图6中VII部分的放大图。本申请的电子装置的第三实施例的结构与第一实施例的结构相似，不同之处在于：在第三实施例中，第二散热层328包括相互间隔的若干片导热辐射区3281，若干所述导热辐射区3281分别设置于所述屏体320的背面对应非折弯区域33。具体的，所述屏体320的背面对应第一框体21及第二框体23内的高发热量的电子元器件214分别设置有导热辐射区3281。第一框体21及第二框体23内的高发热量的电子元器件214工作时生产的热量经金属中框26及支撑片36传导至这些导热辐射区3281上，导热辐射区3281将热量转化为红外线辐射散热，以达到快速散热的效果。本实施例中的第二散热层328分隔成若干片导热辐射区3281，在满足快速散热 的同时，节省了部分第二散热层328的材料。Please refer to FIGS. 6 and 7. FIG. 6 is a schematic cross-sectional structural view of an electronic device in a third embodiment of the present application; FIG. 7 is an enlarged view of part VII in FIG. 6. The structure of the third embodiment of the electronic device of the present application is similar to the structure of the first embodiment, except that in the third embodiment, the second heat dissipation layer 328 includes a plurality of thermally conductive radiation areas 3281 that are spaced apart from each other. The heat conducting radiation areas 3281 are respectively disposed on the back of the screen body 320 corresponding to the non-bending area 33. Specifically, the back surface of the screen body 320 is respectively provided with a heat conduction radiation area 3281 corresponding to the high-heat-generating electronic components 214 in the first frame body 21 and the second frame body 23. The heat generated by the highly heat-generating electronic components 214 in the first frame 21 and the second frame 23 is conducted to these heat conduction radiation areas 3281 through the metal middle frame 26 and the support sheet 36, and the heat conduction radiation areas 3281 convert the heat Heat radiation for infrared radiation to achieve rapid heat dissipation. In this embodiment, the second heat dissipation layer 328 is divided into several heat conductive radiation areas 3281, which not only satisfies the rapid heat dissipation, but also saves part of the material of the second heat dissipation layer 328.
请参阅图8，图8是本申请第四实施例中的电子装置的剖视结构示意图。本申请的电子装置的第四实施例的结构与第一实施例的结构相似，不同之处在于：在第四实施例中，第二散热层328仅设置于所述屏体320的背面对应第一框体21及第二框体23的区域，即所述屏体320的背面对应所述铰链25的区域没有设置所述第二散热层328。由于所述铰链25不产生热量，因此，所述第二散热层328对应所述铰链25的区域可以省略。第一框体21及第二框体23内的电子元器件214工作时生产的热量经金属中框26散发至外界。同时，第二散热层328将显示屏32的热量传递给金属中框26，通过金属中框26散发出去。本实施例中的第二散热层328仅设置于对应第一框体21及第二框体23的区域上，不仅能满足快速散热的要求，且能节省了部分第二散热层328的材料。Please refer to FIG. 8, which is a schematic cross-sectional structural view of an electronic device in a fourth embodiment of the present application. The structure of the fourth embodiment of the electronic device of the present application is similar to the structure of the first embodiment, except that in the fourth embodiment, the second heat dissipation layer 328 is only provided on the back of the screen body 320 corresponding to the first The area of a frame 21 and the second frame 23, that is, the area on the back of the screen 320 corresponding to the hinge 25, is not provided with the second heat dissipation layer 328. Since the hinge 25 does not generate heat, the area of the second heat dissipation layer 328 corresponding to the hinge 25 can be omitted. The heat generated during the operation of the electronic components 214 in the first frame 21 and the second frame 23 is radiated to the outside through the metal middle frame 26. At the same time, the second heat dissipation layer 328 transfers the heat of the display screen 32 to the metal middle frame 26 and dissipates it through the metal middle frame 26. The second heat dissipation layer 328 in this embodiment is only provided on the area corresponding to the first frame 21 and the second frame 23, which not only meets the requirement of rapid heat dissipation, but also saves part of the material of the second heat dissipation layer 328.
请一并参阅图9及图10，图9是本申请第五实施例中的电子装置的剖视结构示意图；图10是本申请第五实施例中的电子装置的弯折状态剖视结构示意图。本申请的电子装置的第五实施例的结构与第四实施例的结构相似，不同之处在于：在第五实施例中，保护片252与所述支撑膜层326之间的间隙254内设置有缓冲件257，所述缓冲件257具有弹性，受到外力挤压会发生弹性变形。所述缓冲件257的等效弹性模量低于显示屏32的弹性模量。所述缓冲件257用于所述显示装置30对所述可折弯区域31的弯曲进行长度补偿，即，所述显示装置30沿所述可折弯区域31弯曲时，所述显示屏32会压缩缓冲件257，使所述缓冲件257发生弹性变形而厚度变薄，以补偿所述显示装置30自身弯曲过程中的内外半径差引起的长度变化，从而减少对所述显示屏32的弯曲内应力，能防止所述显示屏32损伤。Please refer to FIGS. 9 and 10 together. FIG. 9 is a schematic cross-sectional structure diagram of an electronic device in a fifth embodiment of the present application; FIG. 10 is a schematic cross-sectional structure diagram of a bent state of the electronic device in a fifth embodiment of the present application . The structure of the fifth embodiment of the electronic device of the present application is similar to the structure of the fourth embodiment, except that in the fifth embodiment, the gap 254 between the protection sheet 252 and the support film layer 326 is provided There is a buffer member 257, which has elasticity, and is elastically deformed when pressed by an external force. The equivalent elastic modulus of the cushioning member 257 is lower than the elastic modulus of the display screen 32. The buffer member 257 is used for the length compensation of the bending of the bendable region 31 by the display device 30, that is, when the display device 30 is bent along the bendable region 31, the display screen 32 will Compress the cushioning member 257 to elastically deform the cushioning member 257 and make the thickness thinner to compensate for the length change caused by the difference between the inner and outer radii during the bending of the display device 30, thereby reducing the bending of the display screen 32 Stress can prevent the display screen 32 from being damaged.
本实施例中，所述缓冲件257为固定于所述保护片252与所述显示屏32之间对应所述可折弯区域31的一层或若干层不同压缩比和回弹率的若干缓冲体。这些缓冲体相互间隔，以方便缓冲体被挤压时发生弹性变形而厚度变薄。缓冲体由弹性材料制成的缓冲条，所述缓冲条沿所述显示屏32的弯曲轴的方向延伸。所述缓冲条可以是具有弹性的硅胶条、泡沫塑料条、泡棉条或橡胶条中的至少任意一种。In this embodiment, the buffer member 257 is a plurality of buffers fixed between the protective sheet 252 and the display screen 32 corresponding to the one or more layers of the flexible region 31 with different compression ratios and rebound rates body. These buffer bodies are spaced apart from each other to facilitate the elastic deformation when the buffer bodies are pressed and the thickness becomes thinner. The buffer body is a buffer strip made of an elastic material, and the buffer strip extends in the direction of the bending axis of the display screen 32. The buffer strip may be at least any one of elastic silicone strips, foam plastic strips, foam strips or rubber strips.
以上所述是本发明的优选实施方式，应当指出，对于本技术领域的普通技 术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也视为本发明的保护范围。The above is the preferred embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principles of the present invention, several improvements and retouches can be made. These improvements and retouches are also regarded as This is the protection scope of the present invention.

Claims (26)

  1. 一种显示屏，包括屏体及层叠于所述屏体的正面的盖板，其特征在于，所述屏体与所述盖板之间设置有透明的第一散热层，所述第一散热层用于将所述屏体工作时产生的热量转化为红外线经所述盖板辐射至外部。A display screen includes a screen body and a cover plate stacked on the front of the screen body, characterized in that a transparent first heat dissipation layer is provided between the screen body and the cover plate, and the first heat dissipation The layer is used to convert the heat generated during the operation of the screen body into infrared rays and radiate it to the outside through the cover plate.
  2. 如权利要求1所述的显示屏，其特征在于，所述第一散热层的热传导率高于屏体及盖板的热传导率。The display screen according to claim 1, wherein the thermal conductivity of the first heat dissipation layer is higher than the thermal conductivity of the screen body and the cover plate.
  3. 如权利要求1所述的显示屏，其特征在于，所述第一散热层涂设于所述盖板面朝所述屏体的侧面上。The display screen according to claim 1, wherein the first heat dissipation layer is coated on the side of the cover plate facing the screen body.
  4. 如权利要求1所述的显示屏，其特征在于，所述第一散热层涂设于所述屏体面朝所述盖板的侧面上。The display screen according to claim 1, wherein the first heat dissipation layer is coated on the side of the screen body facing the cover plate.
  5. 如权利要求3或4所述的显示屏，其特征在于，所述第一散热层通过真空镀或蒸镀的方式镀置于所述盖板或所述屏体上。The display screen according to claim 3 or 4, wherein the first heat dissipation layer is plated on the cover plate or the screen body by vacuum plating or evaporation plating.
  6. 如权利要求5所述的显示屏，其特征在于，所述第一散热层是透明的石墨烯涂层或石墨烯膜层。The display screen according to claim 5, wherein the first heat dissipation layer is a transparent graphene coating or a graphene film layer.
  7. 如权利要求5所述的显示屏，其特征在于，所述第一散热层是透明的碳纳米管涂层或碳纳米管膜层。The display screen according to claim 5, wherein the first heat dissipation layer is a transparent carbon nanotube coating or a carbon nanotube film layer.
  8. 如权利要求1所述的显示屏，其特征在于，所述屏体包括发光器件层及设置于所述发光器件层的出光面的触控模组层，所述第一散热层设置于所述触控模组层背朝所述发光器件层的侧面。The display screen according to claim 1, wherein the screen body includes a light emitting device layer and a touch module layer disposed on a light emitting surface of the light emitting device layer, and the first heat dissipation layer is disposed on the The touch module layer faces away from the side of the light emitting device layer.
  9. 如权利要求1所述的显示屏，其特征在于，所述第一散热层胶接于所述屏体的正面。The display screen according to claim 1, wherein the first heat dissipation layer is glued to the front of the screen body.
  10. 如权利要求1任一所述的显示屏，其特征在于，所述屏体的背面设置有第二散热层。The display screen according to claim 1, wherein a second heat dissipation layer is provided on the back of the screen body.
  11. 如权利要求10所述的显示屏，其特征在于，所述第二散热层是石墨膜层或石墨烯膜层。The display screen of claim 10, wherein the second heat dissipation layer is a graphite film layer or a graphene film layer.
  12. 如权利要求10所述的显示屏，其特征在于，所述第二散热层是碳纳米管涂层或碳纳米管膜层。The display screen of claim 10, wherein the second heat dissipation layer is a carbon nanotube coating or a carbon nanotube film layer.
  13. 如权利要求10所述的显示屏，其特征在于，所述第二散热层的材料是氧化铜、氧化铝、氮化铜、氮化铝中的一种或多种。The display screen of claim 10, wherein the material of the second heat dissipation layer is one or more of copper oxide, aluminum oxide, copper nitride, and aluminum nitride.
  14. 如权利要求10所述的显示屏，其特征在于，所述屏体包括可折弯区域及位于所述可折弯区域相对的两侧的非折弯区域，所述第二散热层设置于所述屏体的背面对应非折弯区域，在可折弯区与屏体之间形成间隙。The display screen according to claim 10, wherein the screen body includes a bendable area and non-bendable areas on opposite sides of the bendable area, and the second heat dissipation layer is disposed on the The back of the screen body corresponds to the non-bending area, and a gap is formed between the bendable area and the screen body.
  15. 如权利要求14所述的显示屏，其特征在于，所述第二散热层包括相互间隔的若干片导热辐射区，若干所述导热辐射区分别设置于所述屏体的背面对应非折弯区域。The display screen according to claim 14, wherein the second heat dissipation layer includes a plurality of thermally conductive radiating regions spaced apart from each other, and the plurality of thermally conductive radiating regions are respectively disposed on the back surface of the screen body corresponding to the non-bending area .
  16. 如权利要求10所述的显示屏，其特征在于，所述第二散热层通过真空镀或蒸镀的方式镀置于所述屏体的背面。The display screen of claim 10, wherein the second heat dissipation layer is plated on the back of the screen body by vacuum plating or evaporation plating.
  17. 如权利要求10所述的显示屏，其特征在于，所述第二散热层胶接于所述屏体的背面。The display screen of claim 10, wherein the second heat dissipation layer is glued to the back of the screen body.
  18. 一种显示装置，其特征在于，其包括根据权利要求1至17任一所述的显示屏，以及贴接于所述显示屏的背面用于导热的支撑片。A display device, characterized in that it includes the display screen according to any one of claims 1 to 17, and a support sheet attached to the back of the display screen for heat conduction.
  19. 如权利要求18所述的显示装置，其特征在于，所述支撑片贴合于所述显示屏的非折弯区域。The display device according to claim 18, wherein the support sheet is attached to a non-bending area of the display screen.
  20. 如权利要求18所述的显示装置，其特征在于，所述显示屏的背面还设置有保护片，所述保护片与所述屏体的可弯折区之间形成有间隙，当所述屏体的可弯折区弯折时，所述间隙受压缩变窄而补偿所述显示屏自身弯曲过程中的内外半径差引起的长度变化。The display device according to claim 18, wherein a protective sheet is further provided on the back of the display screen, and a gap is formed between the protective sheet and the bendable area of the screen body, when the screen When the bendable area of the body is bent, the gap is compressed and narrowed to compensate for the change in length caused by the difference between the inner and outer radii of the display screen itself during bending.
  21. 如权利要求20所述的显示装置，其特征在于，所述间隙内设置有具有弹性的缓冲件，所述缓冲件的等效弹性模量低于所述显示屏的弹性模量。The display device according to claim 20, wherein an elastic buffer member is provided in the gap, and an equivalent elastic modulus of the buffer member is lower than that of the display screen.
  22. 如权利要求21所述的显示装置，其特征在于，所述缓冲件为固定于所述保护片与所述显示屏之间对应所述屏体的可折弯区域的一层或若干层不同压缩比和回弹率的若干缓冲体。The display device according to claim 21, wherein the buffer member is a layer or layers of different compressions fixed between the protective sheet and the display screen corresponding to the bendable area of the screen body The ratio and rebound rate of several buffers.
  23. 一种电子装置，其包括壳体及设置于所述壳体内的若干电子元器件，其特征在于，所述电子装置还包括根据权利要求18至22任一所述的显示装置，若干所述电子元器件产生的热量经所述显示装置的第一散热层转化为红外线辐射散发。An electronic device comprising a housing and a number of electronic components arranged in the housing, characterized in that the electronic device further comprises a display device according to any one of claims 18 to 22, a number of the electronic The heat generated by the components is converted into infrared radiation by the first heat dissipation layer of the display device and emitted.
  24. 如权利要求23所述的电子装置，其特征在于，所述壳体包括金属中框，所述金属中框的一侧贴接于所述显示装置的支撑片，所述金属中框的另一侧贴接于电子元器件，电子元器件产生的热量传导至所述金属中框散发。The electronic device according to claim 23, wherein the housing includes a metal middle frame, one side of the metal middle frame is attached to the support piece of the display device, and the other of the metal middle frame The side is attached to the electronic component, and the heat generated by the electronic component is conducted to the metal middle frame and emitted.
  25. 如权利要求23所述的电子装置，其特征在于，电子元器件与金属中框之间设置有导热件，所述电子元器件工作时产生的热量经过所述导热件传导至所述金属中框上。The electronic device according to claim 23, wherein a heat conducting member is provided between the electronic component and the metal middle frame, and the heat generated during the operation of the electronic component is conducted to the metal middle frame through the heat conducting member on.
  26. 如权利要求23所述的电子装置，其特征在于，电子元器件外覆盖有屏蔽罩，所述屏蔽罩与所述电子元器件之间设置有导热垫或导热膏，所述屏蔽罩与金属中框之间设置有导热垫或导热膏。The electronic device according to claim 23, wherein the electronic component is covered with a shielding cover, and a thermally conductive pad or a thermal paste is provided between the shielding cover and the electronic component, and the shielding cover A thermal pad or thermal paste is provided between the frames.
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