WO2022041332A1 - 显示模组 - Google Patents

显示模组 Download PDF

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Publication number
WO2022041332A1
WO2022041332A1 PCT/CN2020/114988 CN2020114988W WO2022041332A1 WO 2022041332 A1 WO2022041332 A1 WO 2022041332A1 CN 2020114988 W CN2020114988 W CN 2020114988W WO 2022041332 A1 WO2022041332 A1 WO 2022041332A1
Authority
WO
WIPO (PCT)
Prior art keywords
display module
module according
support plate
accommodating space
bending
Prior art date
Application number
PCT/CN2020/114988
Other languages
English (en)
French (fr)
Inventor
汪文强
Original Assignee
武汉华星光电半导体显示技术有限公司
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 武汉华星光电半导体显示技术有限公司 filed Critical 武汉华星光电半导体显示技术有限公司
Priority to US17/254,239 priority Critical patent/US11877470B2/en
Publication of WO2022041332A1 publication Critical patent/WO2022041332A1/zh

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Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/87—Passivation; Containers; Encapsulations
    • H10K59/871—Self-supporting sealing arrangements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/84—Passivation; Containers; Encapsulations
    • H10K50/844—Encapsulations
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/87—Passivation; Containers; Encapsulations
    • H10K59/873—Encapsulations
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2380/00—Specific applications
    • G09G2380/02—Flexible displays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
    • H01L27/144—Devices controlled by radiation
    • H01L27/146—Imager structures
    • H01L27/14678—Contact-type imagers
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K2102/00—Constructional details relating to the organic devices covered by this subclass
    • H10K2102/301—Details of OLEDs
    • H10K2102/311—Flexible OLED
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/84—Passivation; Containers; Encapsulations
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/84—Passivation; Containers; Encapsulations
    • H10K50/841—Self-supporting sealing arrangements
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/84—Passivation; Containers; Encapsulations
    • H10K50/842—Containers
    • H10K50/8428—Vertical spacers, e.g. arranged between the sealing arrangement and the OLED
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/868—Arrangements for polarized light emission
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K77/00—Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80
    • H10K77/10—Substrates, e.g. flexible substrates
    • H10K77/111—Flexible substrates

Definitions

  • the present application relates to the field of display technology, and in particular, to a display module.
  • the core of OLED display technology lies in the fact that the pixels of the display layer can realize self-luminescence without backlighting, which has the advantages of good wide viewing angle, high contrast, low power consumption, and high response speed.
  • the glass substrate is composed of a glass substrate. Compared with the liquid crystal display module, the OLED display module has a greater reduction in thickness. Therefore, the OLED display module can still maintain good display performance in a bent and folded state, which makes flexible display possible.
  • the overall thickness of the typical flexible display module stack is relatively thick, so the stiffness in the thickness direction is relatively high, and it is not easy to bend.
  • the support layer is the bottom steel plate of the module, which plays the role of supporting and restoring flattening.
  • the elastic modulus of the steel plate is much larger than the elastic modulus of the adjacent rubber layer, there is almost no expansion and contraction deformation along the arc surface during bending, and the deformation coordination with the rubber layer is poor, and it is bent and flattened many times. Afterwards, the screen cannot be restored to the initial flat state, and there are irreversible wavy wrinkles or even debonding failure, which directly affects the use effect and life of the product.
  • the present application provides a display module to solve the problems of irrecoverable wrinkles and film debonding that occur during the bending process of the display module.
  • the application provides a display module, which includes:
  • the display panel includes a bending area and a non-bending area disposed on both sides of the bending area;
  • the support structure comprises a first encapsulation layer, a support plate and a second encapsulation layer sequentially arranged on the display panel, the support plates are arranged at intervals and correspondingly arranged in the non-bending area;
  • An accommodating space is defined between the first encapsulation layer, the support plate and the second encapsulation layer, the accommodating space corresponds to the bending area, and a flow is arranged in the accommodating space material, the flowing material is a lubricating material.
  • the support structure further includes an elastic sheet disposed between two adjacent support plates, the elastic sheet is disposed in the accommodating space and corresponds to the bending Fold area.
  • the elastic sheet includes an elastic body and a sliding portion connected to both ends of the elastic body, and the sliding portion is slidably connected to the adjacent support plate.
  • a chute is provided on a side of the support plate close to the elastic piece, and the sliding portion is provided in the chute.
  • the elastic sheet is provided with a through hole.
  • the elastic body is undulating.
  • the elastic body includes tabs arranged side by side at intervals and a connecting segment connected between two adjacent tabs, and the two adjacent tabs and A groove is formed between the connecting segments.
  • the protruding piece includes a horizontal portion and an inclined portion connected on both sides of the horizontal portion, and the inclined portion is provided with a through hole.
  • the number of the through holes is multiple, and the plurality of through holes are evenly and spaced apart along the extending direction of the inclined portion.
  • the application also provides a display module, which includes:
  • a display panel including a bending region
  • the support structure includes a first encapsulation layer, a support plate and a second encapsulation layer sequentially arranged on the display panel, and the support plates are arranged at intervals;
  • An accommodating space is defined between the first encapsulation layer, the support plate and the second encapsulation layer, the accommodating space corresponds to the bending area, and a flow is arranged in the accommodating space Material.
  • the flowing material is a lubricating material.
  • the display panel further includes non-bending regions disposed on both sides of the bending region;
  • the support structure further includes an elastic piece arranged between two adjacent support plates, the elastic piece is arranged in the accommodating space and corresponds to the bending area, and the support plate is correspondingly arranged in the accommodating space. the non-bending region.
  • the elastic sheet includes an elastic body and a sliding portion connected to both ends of the elastic body, and the sliding portion is slidably connected to the adjacent support plate.
  • a chute is provided on a side of the support plate close to the elastic piece, and the sliding portion is provided in the chute.
  • the elastic sheet is provided with a through hole.
  • the elastic body is undulating.
  • the elastic body includes tabs arranged side by side at intervals and a connecting segment connected between two adjacent tabs, and the two adjacent tabs and A groove is formed between the connecting segments.
  • the protruding piece includes a horizontal portion and an inclined portion connected on both sides of the horizontal portion, and the inclined portion is provided with a through hole.
  • the number of the through holes is multiple, and the plurality of through holes are evenly and spaced apart along the extending direction of the inclined portion.
  • an encapsulation area and an adhesive area are provided on the support plate, and the adhesive area is located on a side of the encapsulation area away from the bending area;
  • a part of the first encapsulation layer is arranged in the encapsulation area
  • the display module further includes an adhesive layer, and the adhesive layer is disposed between the display panel and the support plate and located on the adhesive area.
  • the support structure in the display module provided by the present application includes a first encapsulation layer, a support plate and a second encapsulation layer arranged on the display panel in sequence, and the support plates are arranged at intervals.
  • an accommodating space is defined between the first encapsulation layer, the support plate and the second encapsulation layer, the accommodating space corresponds to the bending area, and the accommodating space is provided with a flowing material.
  • FIG. 1 is a schematic structural diagram of a display module provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a partially enlarged structure of a display module provided by an embodiment of the present application
  • FIG. 3 is a schematic structural diagram of an elastic sheet in a display module provided by an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a display module provided in an embodiment of the present application in a flattened state
  • FIG. 5 is a schematic structural diagram of the display module provided in an embodiment of the present application in a bent state
  • Figure 6 is an enlarged schematic view of the structure at OO' in Figure 4 .
  • first and second are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features delimited with “first”, “second” may expressly or implicitly include one or more of said features. In the description of the present application, “plurality” means two or more, unless otherwise expressly and specifically defined.
  • the terms “installed”, “connected” and “connected” should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; it can be mechanical connection, electrical connection or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction of two elements relation.
  • installed should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; it can be mechanical connection, electrical connection or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction of two elements relation.
  • a first feature "on” or “under” a second feature may include direct contact between the first and second features, or may include the first and second features Not directly but through additional features between them.
  • the first feature being “above”, “over” and “above” the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature.
  • the first feature is “below”, “below” and “below” the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.
  • FIG. 1 is a schematic structural diagram of a display module provided by an embodiment of the present application.
  • the embodiment of the present application provides a display module 100 , which includes a display panel 10 and a support structure 20 .
  • the display panel 10 includes a bending area 10A and a non-bending area 10B disposed on both sides of the bending area 10A.
  • the support structure 20 includes a first encapsulation layer 21 , a support plate 22 and a second encapsulation layer 23 which are sequentially arranged on the display panel 10 .
  • the support plates 22 are arranged at intervals.
  • an accommodating space 20 a is defined between the first encapsulation layer 21 , the support plate 22 and the second encapsulation layer 23 .
  • the accommodating space 20a corresponds to the bending area 10A.
  • a flowing material 201 is provided in the accommodating space 20a.
  • the frictional force between the support structure 20 and the display panel 10 is reduced, so that the space between the support structure 20 and the display panel 10 is reduced.
  • the shear force generated by bending is reduced, thereby improving the deformation coordination between the support structure 20 and the display panel 10, thereby improving the irreversible wrinkles and film layer peeling that occur during the bending process of the display module. sticky problem.
  • the display panel 10 includes a display function layer 11 , a touch function layer 12 , a polarizer 13 , an optical adhesive layer 14 and a protective layer 15 which are arranged in sequence.
  • the display function layer 11 is disposed on the first encapsulation layer 21 .
  • the display function layer 11 may be an organic light emitting diode display layer or a liquid crystal display layer. This embodiment only takes the display function layer 11 as an organic light emitting diode display layer as an example for description, but is not limited thereto.
  • an optical adhesive layer or a pressure-sensitive adhesive layer is generally used for overall bonding between the support structure and the display panel.
  • the optical adhesive layer or Accumulated microscopic damage will gradually form inside the pressure-sensitive adhesive layer and between the contact interface with the display panel, and when the bending and flattening connection reaches a certain number of times, the microscopic damage will evolve into a visible film debonding phenomenon, such as The optical adhesive layer or the pressure-sensitive adhesive layer may lose its cohesive force and fail, thereby greatly reducing the performance of the display product.
  • the support structure is redesigned in this embodiment, by arranging the flow material 201 in the accommodating space 20a in the support structure 20, and using the first encapsulation layer 21 and the second encapsulation layer 23 to control the flow
  • the material 201 is encapsulated to prevent it from overflowing, which greatly reduces the frictional force between the support structure 20 and the display panel 10 and improves the deformation coordination between the two.
  • the support structure 20 of the present embodiment does not use an optical adhesive layer or a pressure-sensitive adhesive layer in the bending area 10A, the failure phenomenon of the optical adhesive layer or the pressure-sensitive adhesive layer is effectively avoided, and the performance of the display module is greatly improved. Bending performance.
  • the accommodating space 20a further includes a corresponding portion of the non-bending area 10B.
  • the support plate 22 is disposed in the non-bending area 10B, and the accommodating space 20 a includes a portion between the support plate 22 and the first encapsulation layer 21 .
  • the flowing material 201 may be a lubricating material.
  • the lubricating material is a polymer lubricating material with high optical transmittance. The use of the lubricating material reduces the frictional force between the display module 100 at the position corresponding to the bending area 10A and the support structure 20 during the bending process, and the shearing force at the contact interface between the two is significantly reduced, so that the The deformation coordination ability between the display panel 10 and the support structure 20 is improved.
  • the lubricating material can be a single high molecular polymer, such as polyether synthetic oil, alkyl benzene oil or other high molecular polymers, or can be a mixture of different high molecular polymers, for example, without affecting the mold
  • the mixture of different high molecular polymer components can be formulated to make the mixture have good lubricating and bonding effects, and have relatively reliable optical properties and high specific heat capacity.
  • the friction force between the display panel 10 and the support structure 20 is significantly reduced to a certain extent.
  • the flowing material 201 may also be a non-oil liquid, such as water and other materials with a lubricating effect, which will not be described herein again.
  • the material of the first encapsulation layer 21 is composite resin.
  • the composite resin can be a composite material of an inorganic material and an organic material, which has both the water and oxygen barrier properties of the inorganic material and the good film-forming properties of the organic material.
  • the composite resin not only has good encapsulation effect, but also has high bonding effect, so as to better bond the display panel 10 and the supporting structure 20 .
  • the resin material since the resin material has a certain lubricating effect, compared with the optical adhesive layer or the pressure-sensitive adhesive layer in the prior art, the resin material has a certain lubricating effect, which can improve the distance between the display panel 10 and the support structure 20 . deformation coordination.
  • the first encapsulation layer 21 may be a single-layer structure or a multi-layer structure, which is not limited in this application.
  • the material of the second encapsulation layer 23 is the same as the material of the first encapsulation layer 21 .
  • the material of the second encapsulation layer 23 and the material of the first encapsulation layer 21 may also be different, which is not limited in this application.
  • the support structure 20 further includes an elastic sheet 24 disposed between two adjacent support plates 22 .
  • the elastic piece 24 is arranged in the accommodating space 20a and corresponds to the bending area 10A.
  • the support plate 22 is correspondingly disposed in the non-bending area 10B.
  • the elastic sheet 24 is used as the support of the display panel 10 at the position of the display module 100 corresponding to the bending area 10A. Since the elastic sheet 24 has better deformability, the bending performance of the display module can be further improved. In addition, since the elastic sheet 24 has a deformation space during the bending and flattening process, the storage space of the flowable material 201 can be increased, and the frictional force between the display panel 10 and the support structure 20 can be further reduced. Further, compared with the whole-piece support, the arrangement of the elastic sheet 24 increases the heat dissipation area in the support structure 20 per unit space, thereby improving the overall heat dissipation effect of the display module, which is beneficial to improve the service life of the display module. .
  • the shrapnel 24 is a special steel plate.
  • the special steel plate is an alloy steel, such as an alloy steel containing metal manganese, which has high strength and toughness. Therefore, compared with the ordinary steel plate in the prior art, the premise of not affecting the support effect of the support structure 20 is Next, in this embodiment, the thickness of the entire supporting structure 20 can be reduced by reducing the thickness of the elastic sheet 24 , thereby helping to reduce the overall thickness of the display module.
  • the support plate 22 is a rigid plastic plate.
  • the use of the rigid plastic plate can reduce the weight of the support structure 20 , which is beneficial to realize the thinning of the display module.
  • the elastic piece 24 includes an elastic body 241 and sliding parts 242 connected to both ends of the elastic body 241 , as shown in FIG. 2 .
  • the sliding portion 242 is slidably connected with the adjacent support plate 22 .
  • This arrangement can provide a certain sliding space for the bending of the elastic sheet 24, so that the elastic sheet 24 can release the stress during the sliding process.
  • the disassembly, assembly and maintenance of the support structure 20 is facilitated, thereby providing convenience for the process operation.
  • the elastic piece 24 may also be fixedly connected with the support plate 22, and this embodiment should not be construed as a limitation to the present application.
  • a sliding groove 22a is provided on the side of the support plate 22 close to the elastic piece 24 .
  • the sliding portion 242 is disposed in the sliding groove 22a.
  • the number of the chute 22a is one.
  • the sliding portion 242 is disposed in the sliding groove 22 a and is slidably connected with the support plate 22 .
  • the number of the chutes 22a is plural.
  • a plurality of chutes 22a are arranged at intervals.
  • the sliding portion 242 includes a plurality of sub-sliding portions. Each of the sub-sliding parts is disposed in a sliding groove 22a in a one-to-one correspondence.
  • the sub-sliding portion is a sliding piece connected to the elastic body 241 , and the number of sliding pieces and the distance between the sliding pieces can be set according to the actual situation, which is not limited in this application.
  • the elastic piece 24 will be offset in the extending direction of the sliding portion 242 during repeated bending and flattening.
  • the above arrangement is through the arrangement of a plurality of sliding grooves 22a, so that each sub-sliding portion is limited in a corresponding sliding groove 22a, and directional sliding occurs with the bending or flattening of the display module, thereby playing a role in the elastic piece 24.
  • the limiting effect effectively reduces the risk of deflection of the shrapnel 24 .
  • the elastic body 241 is undulating.
  • the shape of the elastic body 241 may be a trapezoidal wave, a wave shape, a sawtooth shape or a square wave shape, etc.
  • the shape of the elastic body 241 is not specifically limited in this application.
  • the structure is conducive to absorbing the impact energy caused by the impact and extrusion of the display module, thereby effectively reducing the failure risk of the optical device layer and the metal wiring layer inside the display module. It should be noted that, this embodiment only takes the shape of the elastic body 241 as a trapezoidal wave as an example for description, but is not limited thereto.
  • the elastic body 241 includes tabs 2411 that are spaced apart and arranged side by side, and a connecting segment 2412 that is connected between two adjacent tabs 2411 .
  • a groove 241A is formed between two adjacent protruding pieces 2411 and the connecting segment 2412 .
  • the flow material 201 is accommodated in the groove 241A.
  • a through hole 24 a is provided on the elastic piece 24 .
  • the arrangement of the through holes 24a reduces the flow resistance of the flowable material 201, so that the flowable material 201 can flow freely in the accommodating space 20a and is dispersed on the periphery of the elastic sheet 24, so that the elastic sheet 24 can be bent and unfolded in the display module. Free sliding can be achieved during the flattening process, which is beneficial to improve the deformation coordination between the display panel 10 and the supporting structure 20 .
  • the weight of the elastic pieces 24 can also be reduced, thereby reducing the weight of the support structure 20, which can not only reduce the weight of the entire display module, in addition, the through holes 24a also play the role of The function of releasing the bending stress is to improve the deformability of the support structure 20, thereby improving the bending performance of the entire display module.
  • the tab 2411 includes a horizontal portion 2411a and inclined portions 2411b connected on both sides of the horizontal portion 2411a.
  • the horizontal portion 2411 a is attached to the first encapsulation layer 21 .
  • a through hole 24a is provided on the inclined portion 2411b.
  • the inclined portion 2411b includes a first inclined portion 2411c and a second inclined portion 2411d.
  • the extension loci of the first inclined portion 2411c and the second inclined portion 2411d are symmetrically arranged with respect to the center line of the horizontal portion 2411a.
  • the through holes 24a are respectively provided on the first inclined portion 2411c and the second inclined portion 2411d.
  • the elastic sheet 24 is also wrapped by the flowing material 201 , when the display module of this embodiment is in a bent state, the elastic sheet 24 is stretched and deformed due to the bending stress, and then moves in the direction of the support plate 22 . During the process of tensile deformation, the elastic sheet 24 will squeeze the flowable material 201, causing the flowable material 201 to flow. If the flowable material 201 does not have enough space to flow, it will react to the elastic sheet 24, resulting in the deformation of the elastic sheet 24 being hindered.
  • the through hole 24a is provided on the inclined portion 2411b of the sheet 2411, so that when the sheet 2411 is bent and restored to a flat state, the flow of the flowable material 201 is facilitated, so as to improve the deformation efficiency of the elastic sheet 24.
  • the through hole 24a may also be disposed on the horizontal portion 2411a, which will not be repeated here.
  • the number of the through holes 24a is plural.
  • the plurality of through holes 24a are evenly and spaced apart along the extending direction of the inclined portion 2411b.
  • the first inclined portion 2411c and the second inclined portion 2411d are provided with through holes 24a that are evenly and spaced apart. This arrangement can further reduce the flow resistance of the flowing material 201, thereby further improving the free sliding ability of the elastic piece 24 during the bending and flattening process.
  • the shape of the through hole 24a may be a circle, a square, a rectangle or an ellipse, etc.
  • This embodiment only takes the shape of the through hole 24a as a circle as an example for description, but should not be construed as a limitation of the present application.
  • FIG. 4 is a schematic structural diagram of the display module 100 provided in an embodiment of the present application in a flattened state
  • FIG. 5 is a schematic diagram of the display module 100 provided by an embodiment of the present application in a bent state Schematic diagram of the structure in the state.
  • the setting of the lubricating material reduces the frictional force between the display panel 10 and the supporting structure 20, and improves the The deformation coordination of the two improves the overall bending performance of the display module; on the other hand, the arrangement of the elastic pieces 24 further improves the bending performance of the display module, and is conducive to realizing a thin and light design of the display module.
  • the inventors of the present application have found in many experiments and explorations that the display module in this embodiment does not have problems of wrinkling or even debonding during multiple bending and flattening processes. , the present application greatly improves the performance of the display product and increases the service life of the display product, thereby enhancing the market competitiveness of the display product.
  • FIG. 6 is an enlarged schematic view of the structure at QQ' in FIG. 4 .
  • the support plate 22 is provided with an encapsulation area 22A and an adhesive area 22B.
  • the bonding area 22B is located on the side of the packaging area 22A away from the bending area 10A.
  • a portion of the first encapsulation layer 21 is provided in the encapsulation area 22A.
  • the display module 100 further includes an adhesive layer 30 .
  • the adhesive layer 30 is disposed between the display panel 10 and the support plate 22 and is located on the adhesive area 22B.
  • the material of the adhesive layer 30 can be optical adhesive or pressure-sensitive adhesive, so as to have a good bonding and fixing effect on the display panel 10 and the supporting structure 20 .
  • the elastic potential energy in the elastic sheet 24 can be transmitted to the display panel 10 through the adhesive layer 30 during the bending and flattening process of the display module 100 , thereby ensuring that the The display module has good recovery during the flattening process, thereby further reducing bending fatigue wrinkles and film debonding.
  • the specific bonding range of the bonding layer 30 can be set according to actual application requirements, which is not limited in this application.
  • the friction force between the support structure 20 and the display panel 10 is reduced by the flow material 201, so that the support structure 20 and the display
  • the shear force generated by the bending between the panels 10 is reduced, and the deformation coordination between the display panel 10 and the supporting structure 20 is further improved by the good deformation performance of the elastic sheet 24, thereby improving the bending of the display module.
  • the support structure in the display module provided by the present application includes a first encapsulation layer, a support plate and a second encapsulation layer arranged on the display panel in sequence, and the support plates are arranged at intervals.
  • an accommodating space is defined between the first encapsulation layer, the support plate and the second encapsulation layer, the accommodating space corresponds to the bending area, and the accommodating space is provided with a flowing material.
  • the friction force between the support structure and the display panel is reduced, so that the shear force between the support structure and the display panel caused by bending is reduced,
  • the problems of irrecoverable wrinkles and film debonding occurring during the bending process of the display module are solved.

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Abstract

本申请提供一种显示模组，其包括显示面板以及支撑结构，显示面板包括弯折区；支撑结构包括依次设置在显示面板上的第一封装层、支撑板和第二封装层，支撑板之间间隔设置；第一封装层、支撑板和第二封装层之间界定形成一容置空间，容置空间对应于弯折区，且容置空间内设置有流动材料。

Description

显示模组 技术领域
本申请涉及显示技术领域，具体涉及一种显示模组。
 背景技术
随着电子显示技术的日益革新与进步，消费者对新型电子产品显示方式及显示效果提出了更高的需求。可折叠式、弯曲式、卷曲式以及透明式显示方式是当前电子显示领域的研究热点。近年来，OLED (Organic Light Emitted Diode，有机发光二极管)显示技术以及AMOLED (Active matrix Light Emitted Diode，有源矩阵有机发光二极管 )等技术的日益成熟，使得上述概念技术成为现实。
OLED显示技术核心在于显示层像素点无需背光即可以实现自发光，具备良好的广视角、高对比度、低功耗、反应速度高等优点，且在叠构上主要采用非常薄的有机材料涂层和玻璃基板构成，相比液晶显示模组，OLED显示模组在厚度上有较大的降低。因此，OLED显示模组在弯曲、折叠状态下依然能保持良好的显示性能，这使得柔性显示成为可能。
 技术问题
目前，典型的柔性显示模组叠构总体厚度较厚，因而厚度方向刚度较高，不易弯折，其结构具体由保护层、触控层、偏光片层、显示功能层和支撑层组成。其中，支撑层为模组最下一层钢板，起到支撑与恢复展平的作用。然而，由于钢板的弹性模量远大于相邻胶层的弹性模量，弯折时沿弧面方向几乎不发生伸缩变形，与胶层之间变形协调性较差，多次弯折、展平后导致屏幕无法恢复到初始平整状态，出现不可恢复的波浪型皱痕甚至脱粘失效现象，直接影响产品的使用效果及寿命。
 技术解决方案
本申请提供一种显示模组，以解决显示模组弯折过程中出现的不可恢复的褶皱以及膜层脱粘问题。
本申请提供一种显示模组，其包括：
显示面板，所述显示面板包括弯折区和设置在所述弯折区两侧的非弯折区；以及
支撑结构，所述支撑结构包括依次设置在所述显示面板上的第一封装层、支撑板和第二封装层，所述支撑板之间间隔设置，且对应设置于所述非弯折区；
所述第一封装层、所述支撑板和所述第二封装层之间界定形成一容置空间，所述容置空间对应于所述弯折区，且所述容置空间内设置有流动材料，所述流动材料为润滑材料。
在本申请所述的显示模组中，所述支撑结构还包括设置在相邻两个所述支撑板之间的弹片，所述弹片设置在所述容置空间内，且对应于所述弯折区。
在本申请所述的显示模组中，所述弹片包括弹性主体和连接在所述弹性主体两端的滑动部，所述滑动部与相邻的所述支撑板滑动连接。
在本申请所述的显示模组中，所述支撑板靠近所述弹片的一侧上设置有滑槽，所述滑动部设置于所述滑槽内。
在本申请所述的显示模组中，所述弹片上设置有通孔。
在本申请所述的显示模组中，所述弹性主体呈高低起伏状。
在本申请所述的显示模组中，所述弹性主体包括间隔且并排设置的凸片和连接在相邻两个所述凸片之间的连接段，相邻的两个所述凸片和所述连接段之间形成一凹槽。
在本申请所述的显示模组中，所述凸片包括水平部分和连接在所述水平部分两侧的倾斜部分，所述倾斜部分上设置有通孔。
在本申请所述的显示模组中，所述通孔的数量为多个，多个所述通孔沿所述倾斜部分的延伸方向均匀且间隔设置。
本申请还提供一种显示模组，其包括：
显示面板，所述显示面板包括弯折区；以及
支撑结构，所述支撑结构包括依次设置在所述显示面板上的第一封装层、支撑板和第二封装层，所述支撑板之间间隔设置；
所述第一封装层、所述支撑板和所述第二封装层之间界定形成一容置空间，所述容置空间对应于所述弯折区，且所述容置空间内设置有流动材料。
在本申请所述的显示模组中，所述流动材料为润滑材料。
在本申请所述的显示模组中，所述显示面板还包括设置于所述弯折区两侧的非弯折区；
所述支撑结构还包括设置在相邻两个所述支撑板之间的弹片，所述弹片设置在所述容置空间内，且对应于所述弯折区，所述支撑板对应设置于所述非弯折区。
在本申请所述的显示模组中，所述弹片包括弹性主体和连接在所述弹性主体两端的滑动部，所述滑动部与相邻的所述支撑板滑动连接。
在本申请所述的显示模组中，所述支撑板靠近所述弹片的一侧上设置有滑槽，所述滑动部设置于所述滑槽内。
在本申请所述的显示模组中，所述弹片上设置有通孔。
在本申请所述的显示模组中，所述弹性主体呈高低起伏状。
在本申请所述的显示模组中，所述弹性主体包括间隔且并排设置的凸片和连接在相邻两个所述凸片之间的连接段，相邻的两个所述凸片和所述连接段之间形成一凹槽。
在本申请所述的显示模组中，所述凸片包括水平部分和连接在所述水平部分两侧的倾斜部分，所述倾斜部分上设置有通孔。
在本申请所述的显示模组中，所述通孔的数量为多个，多个所述通孔沿所述倾斜部分的延伸方向均匀且间隔设置。
在本申请所述的显示模组中，所述支撑板上设置有封装区和粘结区，所述粘结区位于所述封装区远离所述弯折区的一侧；
所述第一封装层的部分设置在所述封装区；
所述显示模组还包括粘结层，所述粘结层设置于所述显示面板和所述支撑板之间，且位于所述粘结区上。
 有益效果
相较于现有技术中的显示模组，本申请提供的显示模组中的支撑结构包括依次设置在显示面板上的第一封装层、支撑板和第二封装层，支撑板之间间隔设置，第一封装层、支撑板和第二封装层之间界定形成一容置空间，容置空间对应于弯折区，且容置空间内设置有流动材料。本申请通过在支撑结构内部的容置空间中设置流动材料，减小了支撑结构与显示面板之间的摩擦力，使得支撑结构与显示面板之间因弯折而产生的剪切力减小，从而解决了显示模组弯折过程中出现的不可恢复的褶皱以及膜层脱粘问题。
 附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述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申请的一些实施例，对于本领域技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例提供的显示模组的结构示意图；
图2为本申请实施例提供的显示模组的局部放大结构示意图；
图3为本申请实施例提供的显示模组中弹片的结构示意图；
图4为本申请实施例提供的显示模组处于展平状态下的结构示意图；
图5为本申请实施例提供的显示模组处于弯折状态下的结构示意图；
图6为图4中OO’处的放大结构示意图。
 本发明的实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”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申请和简化描述，而不是指示或暗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申请的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本申请的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接或可以相互通讯；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。
下文的公开提供了许多不同的实施方式或例子用来实现本申请的不同结构。为了简化本申请的公开，下文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本申请。此外，本申请可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施方式和/或设置之间的关系。此外，本申请提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
请参阅图1，图1为本申请实施例提供的显示模组的结构示意图。
本申请实施例提供一种显示模组100，其包括显示面板10和支撑结构20。显示面板10包括弯折区10A和设置于弯折区10A两侧的非弯折区10B。支撑结构20包括依次设置在显示面板10上的第一封装层21、支撑板22和第二封装层23。支撑板22之间间隔设置。其中，第一封装层21、支撑板22和第二封装层23之间界定形成一容置空间20a。容置空间20a对应于弯折区10A。容置空间20a内设置有流动材料201。
由此，本申请实施例通过在支撑结构20内部的容置空间20a中设置流动材料201，减小了支撑结构20与显示面板10之间的摩擦力，使得支撑结构20与显示面板10之间因弯折而产生的剪切力减小，进而提高了支撑结构20与显示面板10之间的变形协调性，从而改善了显示模组在弯折过程中出现的不可恢复的褶皱以及膜层脱粘问题。
在本实施例中，显示面板10包括依次设置的显示功能层11、触控功能层12、偏光片13、光学胶层14和保护层15。显示功能层11设置于第一封装层21上。其中，显示功能层11可以为有机发光二极管显示层或液晶显示层，本实施例仅以显示功能层11为有机发光二极管显示层为例进行说明，但并不限于此。
可以理解的是，在现有技术中，支撑结构与显示面板之间通常采用光学胶层或者压敏胶层进行全面粘结，显示模组在反复弯折及展平状态下，光学胶层或者压敏胶层内部以及与显示面板的接触界面之间会逐渐形成累积的微观损伤，且当弯折及展平连接达到一定次数时，微观损伤会演化成肉眼可见的膜层脱粘现象，如光学胶层或者压敏胶层会失去粘结力而失效，由此大大降低了显示产品的性能。
针对现有技术存在的问题，本实施例对支撑结构进行重新设计，通过在支撑结构20中的容置空间20a内设置流动材料201，并采用第一封装层21及第二封装层23对流动材料201进行封装，防止其溢出，大大减小了支撑结构20与显示面板10之间的摩擦力，提高了两者的变形协调性。此外，由于本实施例的支撑结构20在弯折区10A未使用光学胶层或压敏胶层，从而有效避免了光学胶层或压敏胶层失效现象的发生，大大改善了显示模组的弯折性能。
在本实施例中，容置空间20a还包括非弯折区10B的对应部分。具体的，支撑板22设置在非弯折区10B，容置空间20a包括支撑板22与第一封装层21之间的部分。
可以理解的是，显示模组在弯折及展平过程中，沿着靠近弯折区10A的方向，显示模组位于非弯折区10B的部分所受到的应力逐渐增大，因此，上述设置通过在非弯折区10B也设置流动材料201，减小了整个支撑结构20与显示面板10之间的摩擦力，避免了显示模组局部位置处在弯折或展平过程中因膜层之间变形协调能力差而出现褶皱甚至脱粘问题。
在本实施例中，流动材料201可以为润滑材料。其中，该润滑材料为具有较高光学透过性的高分子润滑材料。该润滑材料的使用，使得显示模组100在弯折过程中对应于弯折区10A的位置处与支撑结构20之间的摩擦力减小，两者接触界面处的剪切力显著降低，从而提高了显示面板10和支撑结构20之间的变形协调能力。
具体的，该润滑材料可以为单一的高分子聚合物，如聚醚合成油、烷基苯油类或其他高分子聚合物，也可以为不同高分子聚合物的混合物，例如，在不影响模组整体的显示质量的前提下，可以通过对不同高分子聚合物组分的调配，能够使该混合物具备良好的润滑及粘接效果，并拥有较为可靠的光学特性以及较高的比热容，从而在一定程度上显著降低显示面板10与支撑结构20之间的摩擦力。
在一些实施例中，流动材料201还可以为非油类液体，比如水等其他具有润滑作用的材料，在此不再赘述。
在本实施例中，第一封装层21的材料为复合树脂。该复合树脂可以为无机材料与有机材料的复合材料，其兼具无机材料的水氧阻隔性能以及有机材料的良好成膜性能。此外，复合树脂在具有良好封装作用的同时，还具有较高的粘结作用，以便更好地粘结显示面板10与支撑结构20。进一步的，由于树脂材料具有一定的润滑效果，因此，相较于现有技术中的光学胶层或者压敏胶层，树脂材料具有一定的润滑效果，能够提高显示面板10与支撑结构20之间的变形协调性。
需要说明的是，第一封装层21可以为单层结构，也可以为多层结构，本申请对此不作限定。
另外，在本实施例中，第二封装层23的材料与第一封装层21的材料相同。在一些实施例中，第二封装层23的材料与第一封装层21的材料也可以不同，本申请对此不作限定。
请一并参阅图1至图4。在本实施例中，支撑结构20还包括设置在相邻两个支撑板22之间的弹片24。弹片24设置在容置空间20a内，且对应于弯折区10A。支撑板22对应设置于非弯折区10B。
本实施例通过在显示模组100对应于弯折区10A的位置将弹片24作为显示面板10的支撑物，由于弹片24具有较好的形变能力，进而可以进一步提高显示模组的弯折性能。此外，由于弹片24在弯折及展平过程中存在变形空间，因此，可以增大流动材料201的存储空间，能够进一步减小显示面板10与支撑结构20之间的摩擦力。进一步的，相较于整片式的支撑物，弹片24的设置使得单位空间的支撑结构20内的散热面积增加，从而提高了显示模组整体的散热效果，有利于提高显示模组的使用寿命。
其中，弹片24为特种钢板。具体的，该特种钢板为合金钢，如含金属锰的合金钢材，其具有较高的强度及韧性，因而，相较于现有技术中的普通钢板，在不影响支撑结构20支撑效果的前提下，本实施例可以通过降低弹片24的厚度，来降低整个支撑结构20的厚度，从而有利于降低显示模组的整体厚度。
支撑板22为硬质塑料板。硬质塑料板的使用可以减轻支撑结构20的重量，有利于实现显示模组的轻薄化。
在本实施例中，弹片24包括弹性主体241和连接在弹性主体241两端的滑动部242，如图2所示。滑动部242与相邻的支撑板22滑动连接。该设置可以为弹片24的弯折提供一定的滑移空间，便于弹片24在滑移过程中释放应力。此外，通过将弹片24与支撑板22采用滑动连接的方式，便于支撑结构20的拆装与维修，进而为工艺操作提供了便利。
在一些实施例中，弹片24也可以与支撑板22固定连接，本实施例不能理解为对本申请的限制。
请继续参阅图2和图3。支撑板22靠近弹片24的一侧上设置有滑槽22a。滑动部242设置于滑槽22a内。
在本实施例中，滑槽22a的数量为一个。滑动部242设置于滑槽22a内，并与支撑板22滑动连接。
在一些实施例中，滑槽22a的数量为多个。多个滑槽22a间隔设置。滑动部242包括多个子滑动部。每一子滑动部一一对应设置于一滑槽22a内。具体的，子滑动部为连接于弹性主体241的滑片，滑片的数量以及滑片之间的间距可以根据实际情况进行设定，本申请对此不作限定。
可以理解的是，由于支撑结构20中设置有流动材料201，因此，弹片24在反复弯折与展平过程中会在滑动部242的延伸方向上发生偏移。上述设置通过多个滑槽22a的设置，使得每一子滑动部限定在对应的一滑槽22a内，并随着显示模组的弯折或者展平而发生定向滑动，进而对弹片24起到限位作用，有效降低了弹片24的偏移风险。
在本实施例中，弹性主体241呈高低起伏状。可选的，弹性主体241的形状可以为梯形波、波浪状、锯齿状或方波形，等等，本申请对弹性主体241的形状不作具体限定。该结构有利于吸收显示模组在受到撞击、挤压时所引起的冲击能量，从而可以有效降低显示模组内部光学器件层及金属走线层的失效风险。需要说明的是，本实施例仅以弹性主体241的形状为梯形波为例进行说明，但并不限于此。
进一步的，弹性主体241包括间隔且并排设置的凸片2411和连接在相邻两个凸片2411之间的连接段2412。相邻的两个凸片2411和连接段2412之间形成一凹槽241A。凹槽241A内容置有流动材料201。
在本实施例中，弹片24上设置有通孔24a。通孔24a的设置减小了流动材料201的流动阻力，使得流动材料201能够在容置空间20a内自由流动，并分散在弹片24周侧，从而使得弹片24在显示模组的弯折及展平过程中可以实现自由滑移，有利于提高显示面板10与支撑结构20之间的变形协调性。
另外，本实施例通过在弹片24上设置通孔24a，还可以减轻弹片24的重量，进而减轻了支撑结构20的重量，不仅能够减轻整个显示模组的重量，另外，通孔24a还起到释放弯折应力的作用，以提高支撑结构20的形变能力，从而提高整个显示模组的弯折性能。
进一步的，凸片2411包括水平部分2411a和连接在水平部分2411a两侧的倾斜部分2411b。当显示模组100处于展平状态时，水平部分2411a贴合于第一封装层21。倾斜部分2411b上设置有通孔24a。
具体的，倾斜部分2411b包括第一倾斜部分2411c和第二倾斜部分2411d。第一倾斜部分2411c和第二倾斜部分2411d的延伸轨迹关于水平部分2411a的中线对称设置。通孔24a分别设置于第一倾斜部分2411c和第二倾斜部分2411d上。
由于弹片24也在流动材料201的包裹之中，当本实施例的显示模组处于弯折状态时，弹片24因受到弯折应力发生拉伸形变，进而向支撑板22的方向移动，而在进行拉伸形变的过程中，弹片24会挤压流动材料201，致使流动材料201流动，如果流动材料201没有足够的空间流动便会反作用于弹片24，致使弹片24形变受阻，因此，通过在凸片2411的倾斜部分2411b上设置通孔24a，使得在弯折和恢复平展状态时，便于流动材料201流动，以提高弹片24的形变效率。
在一些实施例中，通孔24a还可以设置在水平部分2411a上，在此不再赘述。
在本实施例中，通孔24a的数量为多个。多个通孔24a沿倾斜部分2411b的延伸方向均匀且间隔设置。具体的，第一倾斜部分2411c及第二倾斜部分2411d上均设有均匀且间隔排列的通孔24a。该设置可以进一步降低流动材料201的流动阻力，从而进一步提高弹片24在弯折及展平过程中的自由滑移能力。
可选的，通孔24a的形状可以为圆形、正方形、长方形或椭圆形等，本实施例仅以通孔24a的形状为圆形为例进行说明，但并不能理解为对本申请的限定。
请一并参阅图1至图5，其中，图4为本申请实施例提供的显示模组100处于展平状态下的结构示意图；图5为本申请实施例提供的显示模组100处于弯折状态下的结构示意图。
在本实施例中，通过在支撑结构20中的容置空间20a内设置润滑材料及弹片24，一方面，润滑材料的设置减小了显示面板10与支撑结构20之间的摩擦力，提高了两者的变形协调性，进而提高了显示模组整体的弯折性能；另一方面，弹片24的设置进一步提高了显示模组的弯折性能，且有利于实现显示模组的轻薄化设计。
结合图4和图5，本申请的发明人在多次试验探究中发现，本实施例中的显示模组在多次弯折与展平过程中并不会出现褶皱甚至脱粘问题，由此，本申请大大提高了显示产品的性能，并提高了显示产品的使用寿命，从而提升了显示产品的市场竞争力。
请一并参阅图4和图6，图6为图4中QQ’处的放大结构示意图。
在本实施例中，支撑板22上设置有封装区22A和粘结区22B。粘结区22B位于封装区22A远离弯折区10A的一侧。第一封装层21的部分设置在封装区22A。显示模组100还包括粘结层30。粘结层30设置于显示面板10和支撑板22之间，且位于粘结区22B上。
具体的，粘结层30的材料可以为光学胶或压敏胶，以对显示面板10和支撑结构20起到良好的粘结固定效果。
此外，上述设置通过在粘结区22B设置粘结层30，使得显示模组100在弯折及展平过程中，弹片24中的弹性势能能够通过粘结层30传递至显示面板10，保证了显示模组在展平过程中具备良好的恢复性，从而进一步降低了弯折疲劳皱痕以及膜层脱粘现象。
其中，粘结层30的具体粘结范围可以根据实际应用需求进行设定，本申请对此不作限定。
本申请实施例通过在支撑结构20内部的容置空间20a中设置流动材料201以及弹片24，通过流动材料201来减小支撑结构20与显示面板10之间的摩擦力，使得支撑结构20与显示面板10之间因弯折而产生的剪切力减小，并通过弹片24的良好形变性能来进一步提高显示面板10与支撑结构20之间的变形协调性，从而改善了显示模组在弯折过程中出现的不可恢复的褶皱以及膜层脱粘问题。
相较于现有技术中的显示模组，本申请提供的显示模组中的支撑结构包括依次设置在显示面板上的第一封装层、支撑板和第二封装层，支撑板之间间隔设置，第一封装层、支撑板和第二封装层之间界定形成一容置空间，容置空间对应于弯折区，且容置空间内设置有流动材料。本申请通过在支撑结构内部的容置空间中设置流动材料，减小了支撑结构与显示面板之间的摩擦力，使得支撑结构与显示面板之间因弯折而产生的剪切力减小，从而解决了显示模组弯折过程中出现的不可恢复的褶皱以及膜层脱粘问题。
以上对本申请实施例进行了详细介绍，本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的方法及其核心思想；同时，对于本领域的一般技术人员，依据本申请的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本申请的限制。

Claims (20)

  1. 一种显示模组，其包括：
    显示面板，所述显示面板包括弯折区和设置在所述弯折区两侧的非弯折区；以及
    支撑结构，所述支撑结构包括依次设置在所述显示面板上的第一封装层、支撑板和第二封装层，所述支撑板之间间隔设置，且对应设置于所述非弯折区；
    所述第一封装层、所述支撑板和所述第二封装层之间界定形成一容置空间，所述容置空间对应于所述弯折区，且所述容置空间内设置有流动材料，所述流动材料为润滑材料。
  2. 根据权利要求1所述的显示模组，其中，所述支撑结构还包括设置在相邻两个所述支撑板之间的弹片，所述弹片设置在所述容置空间内，且对应于所述弯折区。
  3. 根据权利要求2所述的显示模组，其中，所述弹片包括弹性主体和连接在所述弹性主体两端的滑动部，所述滑动部与相邻的所述支撑板滑动连接。
  4. 根据权利要求3所述的显示模组，其中，所述支撑板靠近所述弹片的一侧上设置有滑槽，所述滑动部设置于所述滑槽内。
  5. 根据权利要求3所述的显示模组，其中，所述弹片上设置有通孔。
  6. 根据权利要求5所述的显示模组，其中，所述弹性主体呈高低起伏状。
  7. 根据权利要求6所述的显示模组，其中，所述弹性主体包括间隔且并排设置的凸片和连接在相邻两个所述凸片之间的连接段，相邻的两个所述凸片和所述连接段之间形成一凹槽。
  8. 根据权利要求7所述的显示模组，其中，所述凸片包括水平部分和连接在所述水平部分两侧的倾斜部分，所述倾斜部分上设置有通孔。
  9. 根据权利要求8所述的显示模组，其中，所述通孔的数量为多个，多个所述通孔沿所述倾斜部分的延伸方向均匀且间隔设置。
  10. 一种显示模组，其包括：
    显示面板，所述显示面板包括弯折区；以及
    支撑结构，所述支撑结构包括依次设置在所述显示面板上的第一封装层、支撑板和第二封装层，所述支撑板之间间隔设置；
    所述第一封装层、所述支撑板和所述第二封装层之间界定形成一容置空间，所述容置空间对应于所述弯折区，且所述容置空间内设置有流动材料。
  11. 根据权利要求10所述的显示模组，其中，所述流动材料为润滑材料。
  12. 根据权利要求10所述的显示模组，其中，所述显示面板还包括设置于所述弯折区两侧的非弯折区；
    所述支撑结构还包括设置在相邻两个所述支撑板之间的弹片，所述弹片设置在所述容置空间内，且对应于所述弯折区，所述支撑板对应设置于所述非弯折区。
  13. 根据权利要求12所述的显示模组，其中，所述弹片包括弹性主体和连接在所述弹性主体两端的滑动部，所述滑动部与相邻的所述支撑板滑动连接。
  14. 根据权利要求13所述的显示模组，其中，所述支撑板靠近所述弹片的一侧上设置有滑槽，所述滑动部设置于所述滑槽内。
  15. 根据权利要求13所述的显示模组，其中，所述弹片上设置有通孔。
  16. 根据权利要求15所述的显示模组，其中，所述弹性主体呈高低起伏状。
  17. 根据权利要求16所述的显示模组，其中，所述弹性主体包括间隔且并排设置的凸片和连接在相邻两个所述凸片之间的连接段，相邻的两个所述凸片和所述连接段之间形成一凹槽。
  18. 根据权利要求17所述的显示模组，其中，所述凸片包括水平部分和连接在所述水平部分两侧的倾斜部分，所述倾斜部分上设置有通孔。
  19. 根据权利要求18所述的显示模组，其中，所述通孔的数量为多个，多个所述通孔沿所述倾斜部分的延伸方向均匀且间隔设置。
  20. 根据权利要求12所述的显示模组，其中，所述支撑板上设置有封装区和粘结区，所述粘结区位于所述封装区远离所述弯折区的一侧；
    所述第一封装层的部分设置在所述封装区；
    所述显示模组还包括粘结层，所述粘结层设置于所述显示面板和所述支撑板之间，且位于所述粘结区上。
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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111292625B (zh) * 2020-02-28 2022-07-08 合肥维信诺科技有限公司 一种柔性显示面板以及显示装置
CN112614433A (zh) * 2020-12-29 2021-04-06 武汉华星光电半导体显示技术有限公司 柔性显示面板及柔性显示装置
CN112767838B (zh) * 2021-01-19 2022-10-21 Oppo（重庆）智能科技有限公司 柔性显示屏和电子设备
CN114093272B (zh) * 2021-12-07 2023-10-31 合肥维信诺科技有限公司 柔性显示装置
CN115240562B (zh) * 2022-08-25 2024-01-30 昆山国显光电有限公司 显示模组及显示装置
CN115985187A (zh) * 2023-02-23 2023-04-18 维信诺科技股份有限公司 显示面板、显示模组及电子设备

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180166652A1 (en) * 2016-12-08 2018-06-14 Samsung Display Co., Ltd. Display apparatus
CN108470523A (zh) * 2018-05-18 2018-08-31 京东方科技集团股份有限公司 柔性元件、柔性显示设备及其制作方法
CN207818084U (zh) * 2017-11-16 2018-09-04 华为技术有限公司 一种柔性盖板、柔性显示装置以及柔性终端产品
CN208141720U (zh) * 2018-05-28 2018-11-23 京东方科技集团股份有限公司 柔性支撑件、柔性显示基板及显示装置
CN109523915A (zh) * 2017-09-18 2019-03-26 三星显示有限公司 显示装置
CN111524934A (zh) * 2019-02-01 2020-08-11 三星显示有限公司 柔性显示装置
CN111540838A (zh) * 2020-04-23 2020-08-14 昆山国显光电有限公司 显示面板及其制作方法、显示装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4327180B2 (ja) * 2006-07-24 2009-09-09 株式会社東芝 表示装置
KR20130043526A (ko) * 2011-10-20 2013-04-30 삼성전자주식회사 플렉시블 표시장치
CN102522420A (zh) * 2011-11-16 2012-06-27 友达光电股份有限公司 具可挠性基板的显示装置及其制造方法
US8998454B2 (en) * 2013-03-15 2015-04-07 Sumitomo Electric Printed Circuits, Inc. Flexible electronic assembly and method of manufacturing the same
CN107564415B (zh) * 2017-08-28 2019-06-21 上海天马有机发光显示技术有限公司 柔性显示面板、显示装置及其制作方法
KR20190055296A (ko) * 2017-11-14 2019-05-23 삼성디스플레이 주식회사 표시장치 및 그 제조방법
CN109630842A (zh) * 2019-01-30 2019-04-16 武汉华星光电半导体显示技术有限公司 柔性显示屏的支撑结构
CN209447443U (zh) * 2019-02-21 2019-09-27 昆山工研院新型平板显示技术中心有限公司 显示面板及显示装置
CN209312360U (zh) * 2019-02-26 2019-08-27 霸州市云谷电子科技有限公司 支撑结构及柔性显示装置
CN210627729U (zh) * 2020-01-06 2020-05-26 京东方科技集团股份有限公司 支撑模组及显示装置
CN210722214U (zh) * 2020-01-08 2020-06-09 合肥维信诺科技有限公司 显示面板

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180166652A1 (en) * 2016-12-08 2018-06-14 Samsung Display Co., Ltd. Display apparatus
CN109523915A (zh) * 2017-09-18 2019-03-26 三星显示有限公司 显示装置
CN207818084U (zh) * 2017-11-16 2018-09-04 华为技术有限公司 一种柔性盖板、柔性显示装置以及柔性终端产品
CN108470523A (zh) * 2018-05-18 2018-08-31 京东方科技集团股份有限公司 柔性元件、柔性显示设备及其制作方法
CN208141720U (zh) * 2018-05-28 2018-11-23 京东方科技集团股份有限公司 柔性支撑件、柔性显示基板及显示装置
CN111524934A (zh) * 2019-02-01 2020-08-11 三星显示有限公司 柔性显示装置
CN111540838A (zh) * 2020-04-23 2020-08-14 昆山国显光电有限公司 显示面板及其制作方法、显示装置

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