WO2020093207A1 - Écran d'affichage, dispositif d'affichage et dispositif électronique - Google Patents

Écran d'affichage, dispositif d'affichage et dispositif électronique 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
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English (en)
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 PCT/CN2018/113993 priority Critical patent/WO2020093207A1/fr
Priority to CN201880096058.7A priority patent/CN112703829A/zh
Publication of WO2020093207A1 publication Critical patent/WO2020093207A1/fr

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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.

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

L'invention concerne un dispositif électronique (100), comprenant une coque (20), une pluralité de composants électroniques (214) disposés dans la coque (20) et un dispositif d'affichage (30). Le dispositif d'affichage (30) comprend un écran d'affichage (32) et une feuille de support (36) fixée à la surface arrière de l'écran d'affichage (32). L'écran d'affichage (30) comprend un corps d'écran (320) et une plaque de recouvrement (329) empilée sur la surface avant du corps d'écran (320). Une première couche de dissipation thermique transparente (321) est disposée entre le corps d'écran (320) et la plaque de recouvrement (329). La première couche de dissipation de chaleur (321) est utilisée pour convertir la chaleur générée lorsque le corps d'écran (320) fonctionne en rayons infrarouges et rayonner les rayons infrarouges vers l'extérieur au moyen de la plaque de recouvrement (329). La chaleur générée par la pluralité de composants électroniques (214) est convertie en rayons infrarouges à rayonner au moyen de la première couche de dissipation thermique (321) du dispositif d'affichage (30).
PCT/CN2018/113993 2018-11-05 2018-11-05 Écran d'affichage, dispositif d'affichage et dispositif électronique WO2020093207A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2018/113993 WO2020093207A1 (fr) 2018-11-05 2018-11-05 Écran d'affichage, dispositif d'affichage et dispositif électronique
CN201880096058.7A CN112703829A (zh) 2018-11-05 2018-11-05 显示屏、显示装置及电子装置

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Application Number Priority Date Filing Date Title
PCT/CN2018/113993 WO2020093207A1 (fr) 2018-11-05 2018-11-05 Écran d'affichage, dispositif d'affichage et dispositif électronique

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WO2020093207A1 true WO2020093207A1 (fr) 2020-05-14

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104254217A (zh) * 2013-06-28 2014-12-31 鸿富锦精密工业（深圳）有限公司 外壳件及使用该外壳件的电子装置
CN104883859A (zh) * 2015-05-29 2015-09-02 联想(北京)有限公司 一种电子设备和壳体
CN106061198A (zh) * 2016-04-29 2016-10-26 广东欧珀移动通信有限公司 屏组件和移动终端
CN106973549A (zh) * 2017-04-10 2017-07-21 上海天马微电子有限公司 一种柔性显示装置
US20170228001A1 (en) * 2013-01-10 2017-08-10 Lg Electronics Inc. Display device
CN108102576A (zh) * 2018-02-08 2018-06-01 衡山县佳诚新材料有限公司 用于lcd、oled显示屏的石墨烯泡棉胶带

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW201500187A (zh) * 2013-06-28 2015-01-01 Hon Hai Prec Ind Co Ltd 外殼件及使用該外殼件的電子裝置
CN206948792U (zh) * 2017-04-28 2018-01-30 昆山国显光电有限公司 一种显示装置
CN107507518A (zh) * 2017-09-05 2017-12-22 武汉华星光电半导体显示技术有限公司 柔性显示装置
CN107787167B (zh) * 2017-10-18 2019-08-20 维沃移动通信有限公司 一种移动终端

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170228001A1 (en) * 2013-01-10 2017-08-10 Lg Electronics Inc. Display device
CN104254217A (zh) * 2013-06-28 2014-12-31 鸿富锦精密工业（深圳）有限公司 外壳件及使用该外壳件的电子装置
CN104883859A (zh) * 2015-05-29 2015-09-02 联想(北京)有限公司 一种电子设备和壳体
CN106061198A (zh) * 2016-04-29 2016-10-26 广东欧珀移动通信有限公司 屏组件和移动终端
CN106973549A (zh) * 2017-04-10 2017-07-21 上海天马微电子有限公司 一种柔性显示装置
CN108102576A (zh) * 2018-02-08 2018-06-01 衡山县佳诚新材料有限公司 用于lcd、oled显示屏的石墨烯泡棉胶带

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