WO2019085484A1 - 一种柔性显示模组及其制备方法 - Google Patents

一种柔性显示模组及其制备方法 Download PDF

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Publication number
WO2019085484A1
WO2019085484A1 PCT/CN2018/090924 CN2018090924W WO2019085484A1 WO 2019085484 A1 WO2019085484 A1 WO 2019085484A1 CN 2018090924 W CN2018090924 W CN 2018090924W WO 2019085484 A1 WO2019085484 A1 WO 2019085484A1
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Prior art keywords
layer
flexible
flexible glass
glass layer
display panel
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PCT/CN2018/090924
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English (en)
French (fr)
Inventor
胡坤
冯浩
党鹏乐
饶潞
袁波
蔡世星
Original Assignee
云谷（固安）科技有限公司
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Publication of WO2019085484A1 publication Critical patent/WO2019085484A1/zh
Priority to US16/526,311 priority Critical patent/US11302889B2/en

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    • 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
    • H10K50/8426—Peripheral sealing arrangements, e.g. adhesives, sealants
    • 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
    • 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
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133305—Flexible substrates, e.g. plastics, organic film
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • 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
    • 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
    • H10K2102/00—Constructional details relating to the organic devices covered by this subclass
    • H10K2102/301—Details of OLEDs
    • H10K2102/351—Thickness
    • 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
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • 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
    • H10K59/40—OLEDs integrated with touch screens
    • 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
    • H10K59/8722—Peripheral sealing arrangements, e.g. adhesives, sealants
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/549—Organic PV cells

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a flexible display module and a method for fabricating the same.
  • the existing flexible display module includes a cover film, a polarizer, a flexible touch screen, and a display light-emitting device (such as an OLED (organic light emitting diode), etc., in order to avoid external water and oxygen to display the light-emitting device. Etching, it is also necessary to prepare a TFE (film encapsulation layer) on the surface of the display device.
  • a TFE film encapsulation layer
  • the main failure position of the flexible display module in the bending process lies in the connection between the TFE and the display light-emitting device, because the thick inorganic layer in the TFE is prone to breakage, which leads to TFE and display illumination. The device is stripped and eventually the overall flexible display module fails.
  • the embodiment of the invention provides a flexible display module and a preparation method thereof, which solves the problem that the flexible display module is easy to be broken after being bent.
  • a display panel disposed inside the flexible glass layer.
  • the flexible glass layer comprises:
  • the display panel is disposed in a recess of the first flexible glass layer.
  • the size of the groove is larger than the size of the display panel.
  • the periphery of the second flexible glass layer and the side of the groove of the first flexible glass layer are encapsulated by a laser sintered glass powder process.
  • the flexible glass layer comprises:
  • the middle of the sealing layer comprises an empty groove area
  • the display panel is disposed in the empty groove region of the sealing layer, and a bottom area size of the empty groove region is larger than a size of the display panel.
  • a first layer of silicone oil disposed between the display panel and the first flexible glass layer;
  • a second layer of silicone oil disposed between the display panel and the second flexible glass layer.
  • the sealing layer is adhered to the first flexible glass layer and/or the second flexible glass layer by an adhesive layer.
  • the sealing layer is made of silicone rubber.
  • the display panel includes a binding end for forming an electrical connection with an external circuit structure
  • the sealing layer includes a frame edge portion and an opening frame portion, and the opening frame portion and the frame edge portion are combined into a frame shape, and the frame edge portion is pressed against the binding end surface of the display panel and Exposing the binding pin of the binding end.
  • the display panel comprises a fixing area fixed to the first flexible glass layer and/or the second flexible glass layer, wherein the fixing area starts from the binding end.
  • the sealing layer comprises at least one air guiding groove and a sealing material for sealing the air guiding groove.
  • the sealing layer includes a plurality of the air guiding slots respectively disposed on a predetermined bending region of the flexible display module and/or an extending direction of a gap between the display panel and the empty slot region. .
  • the display panel includes a polarizing layer, a touch layer and a display function layer, wherein the touch layer comprises a third flexible glass layer and a conductive material layer disposed on a side of the third flexible glass layer.
  • the conductive material layer is formed by applying a conductive material to one side of the third flexible glass layer by coating.
  • At least one strain barrier layer wherein the strain barrier layer comprises a chamber and a layer of elastomeric material surrounding the periphery of the chamber;
  • the display panel comprises at least two functional layers, the at least one strain interrupting layer being disposed between each of the functional layers; and/or the strain interrupting layer is disposed on the first flexible glass layer and Between the display panels; and/or the strain barrier layer is disposed between the display panel and the second flexible glass layer.
  • the chamber is filled with a gas.
  • the gas comprises one or more of the following: air and an inert gas.
  • the display panel is disposed on the first surface of the first flexible glass layer, and the first surface and the second surface are opposite surfaces.
  • the first flexible glass layer comprises a via
  • the circuit trace of the trace area electrically connects the display panel and the external circuit through the via.
  • the display panel includes: a substrate sequentially stacked, a thin film transistor device layer, an organic light emitting diode device layer, a touch screen, and a polarizer.
  • the display panel further comprises:
  • a thin film encapsulation layer is disposed on a surface of the organic light emitting diode device layer.
  • the thin film encapsulation layer is prepared by atomic layer deposition
  • the material of the thin film encapsulation layer is aluminum oxide; and/or
  • the thin film encapsulation layer has a thickness of 25 nm to 50 nm.
  • a display screen comprising any of the flexible display modules and a frame having a preset curved shape, wherein the flexible display module is disposed in the frame, wherein a perimeter of the frame is smaller than the flexible display The perimeter of the module.
  • the frame is attached to the periphery of the flexible display module.
  • the inner surface of the frame comprises an annular groove.
  • the annular groove has a depth of 3-5 mm.
  • the sectional shape of the annular groove is any one of an arc shape, a trapezoidal shape and a U shape.
  • the periphery of the second flexible glass layer is packaged with the side of the groove of the first flexible glass layer.
  • the periphery of the second flexible glass layer and the side of the groove of the first flexible glass layer are encapsulated by a laser sintered glass powder process.
  • the display panel includes: a substrate sequentially stacked, a thin film transistor device layer, an organic light emitting diode device layer, a thin film encapsulation layer, a touch screen, and a polarizer; or
  • the display panel includes: a substrate sequentially stacked, a thin film transistor device layer, an organic light emitting diode device layer, a touch screen, and a polarizing plate.
  • the flexible display module and the preparation method thereof are provided in the embodiment of the invention, and the display panel is encapsulated in the flexible glass layer, so that the package can be satisfied even after removing the thin film encapsulation layer which is easily bent and broken in the existing display panel structure.
  • the performance can also avoid the erosion of the display device of the display panel by the external water and oxygen.
  • the excellent bending resistance of the flexible glass itself can meet the bending requirements of the flexible display module, thereby effectively solving the problem that the display panel of the existing flexible display module is prone to breakage during the bending process.
  • the structural design enables the flexible glass layer to disperse the stress experienced by the display panel during the bending process, further avoiding the fracture failure of the display panel during the bending process.
  • FIG. 1 is a top plan view of a flexible display module according to an embodiment of the invention.
  • FIG. 2 is a schematic top view of a flexible display module according to an embodiment of the invention.
  • FIG. 3 is a front elevational view of a flexible display module according to an embodiment of the invention.
  • FIG. 4 is a schematic view of a first flexible glass with a groove in the middle according to an embodiment of the invention.
  • FIG. 5 is a schematic structural diagram of a flexible display module according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a flexible display module according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a flexible display module according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a flexible display module according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a flexible display module according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of a flexible display module according to an embodiment of the present invention.
  • FIG. 11 is a schematic diagram of a flexible display module according to an embodiment of the invention.
  • FIG. 12 is a schematic structural diagram of a flexible display module according to an embodiment of the present invention.
  • FIG. 13 is a schematic flow chart of a method for fabricating a flexible display module according to an embodiment of the present invention.
  • FIG. 1 is a top plan view of a flexible display module according to an embodiment of the invention.
  • the flexible display module includes a flexible glass layer 10 and a display panel 103 disposed inside the flexible glass layer.
  • the display panel 103 refers to a panel that functions as a display in a flexible display module, and may include organic electroluminescence (OLED), electrophoretic display (EPD), liquid crystal display (LCD) device, and thin film transistor (TFT) according to different display principles. ) Various types such as illuminating.
  • the structure of the display panel 103 may include a substrate, a thin film transistor device layer, an organic light emitting diode device layer, a touch screen, a polarizing plate, and the like, which are sequentially stacked. The present invention does not limit the specific display manner and structure of the display panel 103.
  • FIG. 2 and FIG. 3 are respectively a top view and a front view of a flexible display module according to an embodiment of the invention.
  • the flexible display module includes:
  • the flexible glass layer 10 is composed of a first flexible glass layer 101 and a second flexible glass layer 102.
  • the first flexible glass layer 101 has a groove in the middle, as shown in FIG.
  • the first flexible glass layer 101 having a groove in the middle may be prepared by grooving in the middle of a piece of flexible glass by etching or the like.
  • first flexible glass 101 with the groove in the middle may be prepared by itself or directly purchased by a glass sales company, wherein the groove may be obtained by a process such as etching, and the intermediate tape of the present invention
  • the source or preparation manner of the grooved first flexible glass 101 is not limited.
  • the display panel 103 is disposed within the recess of the first flexible glass layer 101.
  • the display panel 103 may be disposed in the recess of the first flexible glass layer 101 by a bonding manner using an optical glue. Due to the presence of the groove of the first flexible glass layer 101, the sliding range of the second flexible glass layer 102 is effectively limited, and the excessive positional displacement of the second flexible glass layer 102 during the bending process is prevented to cause flexibility.
  • the display module is generally invalid.
  • the second flexible glass layer 102 is disposed on the display panel 103, and the second flexible glass layer 102 is attached to the display panel 103 through the optical adhesive. After the setting is completed, the upper surface of the second flexible glass layer 102 should be the first flexible The upper surface of the glass layer 101 remains at the same level.
  • the cross-sectional area of the groove of the first flexible glass 101 with the groove in the middle is larger than the cross-sectional area of the display panel 103, so that the flexible display module is in the process of bending, the display panel 103 It is possible to slide in the groove so that the bending stress can be further dispersed to avoid the fracture failure of the display panel 103.
  • the second flexible glass layer 102 should be located in the groove of the first flexible glass layer 101. Due to the presence of the first flexible glass layer 101, the sliding of the second flexible glass layer 102 is effectively suppressed, and the flexible display module is improved. Resistance to bending.
  • the manner in which the display panel 103 is disposed in the recess of the first flexible glass 101 may be by optical glue bonding or by silicone oil bonding or the like, and when the silicone oil is bonded, the display panel 103 can be better in the groove.
  • the ground is slid to relieve the bending stress, but the present invention does not limit the specific arrangement and the bonding material used.
  • FIG. 5 is a schematic structural diagram of a flexible display module according to an embodiment of the present invention.
  • the flexible display module includes: a first flexible glass layer 101 and a second flexible glass layer 102, and a sealing layer 104 disposed between the first flexible glass layer 101 and the second flexible glass layer 102.
  • the display panel 103 The middle portion of the sealing layer 104 includes an empty groove region 1031, and the display panel 103 is disposed in the empty groove region 1031 of the sealing layer 104, wherein the bottom surface area of the empty groove region 1031 is larger than the size of the display panel 103.
  • the embodiment of the present invention replaces the substrate and the cover in the existing flexible display module with a flexible glass layer. Since the flexible glass itself has excellent stiffness and bending resistance, it can effectively solve the problem that the existing flexible display module has a contradiction between the stiffness and the prevention of film splitting. Meanwhile, since the display panel 103 is disposed in the vacant area 1031 between the first flexible glass layer 101 and the second flexible glass layer 102, and the bottom area size of the vacant area 1031 is larger than the size of the display panel 103, When the display panel 103 is bent, the display panel 103 can slide relative to the first flexible glass layer 101 and the second flexible glass layer 102 in the empty groove region 1031, thereby alleviating the bending stress, and effectively avoiding the inside of the display panel 103. The layering of the film layer further improves the bending resistance of the flexible display module and improves the reliability of the product.
  • the specific shape of the hollow groove region 1031 of the sealing layer 104 may be adjusted according to the shape of the display panel 103. Generally, it is only slightly larger than the display panel 103 and has the same shape as the display panel 103. For example, when the display panel 103 has a rectangular shape, the empty groove region 1031 in the sealing layer 104 may also have a rectangular shape, except that the bottom surface area of the empty groove region 1031 is larger than the display panel 103, so that the display panel 103 is bent. The middle slides in the empty groove area 1031.
  • the specific shape of the hollow groove region 1031 of the sealing layer 104 is not limited in the present invention.
  • a first silicone oil layer may be disposed between the display panel 103 and the first flexible glass layer 101. And/or providing a second layer of silicone oil between the display panel 103 and the second flexible glass layer 102.
  • the flexible display module includes the first silicone oil layer and the second silicone oil layer Not limited.
  • the sealing layer 104 is bonded to the first flexible glass layer 101 and/or the second flexible glass layer 102 by an adhesive layer.
  • the material of the adhesive layer may be a transparent optical adhesive (OCA).
  • OCA transparent optical adhesive
  • the specific material of the adhesive layer is not limited in the present invention.
  • the sealing layer 104 can be made of silicone rubber.
  • the silicone rubber material can be elastically deformed as the bending stress changes, and has good bending resistance and sealing performance.
  • the sealing layer 104 can also be made of other sealing materials, and the specific material of the sealing layer 104 is not limited in the present invention.
  • FIG. 6 is a schematic structural diagram of a flexible display module according to an embodiment of the present invention.
  • the display panel 103 of the flexible display module includes a binding end 1041 for making an electrical connection with an external circuit structure.
  • the integral frame type sealing layer 104 cannot meet the requirement that the display panel 103 is electrically connected to the external structure through the bonding end 1041, and the sealing layer 104 can be designed to include The divided frame portion 1032 and the opening frame portion 1033, and the opening frame portion 1033 and the frame portion 1032 are combined into a frame shape.
  • the opening frame portion 1033 is prepared first, and after the display panel 103 is attached to the opening region of the opening frame portion 1033, the frame edge portion 1032 is pressed against the display panel 103.
  • the binding end 1041 surface and expose the binding pin of the binding end 1041.
  • the display panel 103 may include a fixed area fixed to the first flexible glass layer 101 and/or the second flexible glass layer 102, and may be opposite to the first flexible glass layer 101 and the second flexible glass layer.
  • the sealing layer 104 can include the discrete frame portion 1032 and the opening frame portion 1033, the frame edge portion 1032 can press-fit the binding end 1041 of the display panel 103 to the first flexible glass layer 101.
  • the binding end 1041 of the display panel 103 is in a fixed state relative to the first flexible glass layer 101, and the slidable area of the display panel 103 is slidable relative to the first flexible glass layer 101 and the second flexible glass layer 102. Slidable state.
  • the fixed area in the fixed state will remain fixed, and the slidable area in the sliding state can be relieved by sliding to avoid the splitting of the film inside the display panel 103.
  • the fixed area starts from the binding end 1041 and extends to one-half the area of the display panel 103
  • the present invention does not do the specific size of the fixed area. Strictly defined, as long as the sliding state can be used to relieve the bending stress by sliding, the size, position and shape of the specific fixed area can be adjusted according to the actual scene requirements.
  • FIG. 7 is a schematic structural diagram of a flexible display module according to an embodiment of the present invention.
  • the sealing layer 104 of the flexible display module includes at least one air guiding groove 1034 and a sealing material for sealing the air guiding groove 1034.
  • the air guiding grooves 1034 can guide the air bubbles generated by the bonding process during the process of bonding the second flexible glass layer 102 to prevent the air bubbles from remaining between the second flexible glass layer 102 and the display panel 103.
  • the at least one air guiding groove 1034 is sealed with a sealing material.
  • the sealing layer 104 may include a plurality of air guiding slots 1034, which may be respectively disposed in a predetermined bending region of the flexible display module and/or the display panel 103 and the empty slot.
  • the direction of the gap between the regions 1031 extends.
  • the air guiding groove 1034 can be disposed in the extending direction of the longitudinal slit between the display panel 103 and the empty groove region 1031 (as shown in FIG. 4), and the display panel 103 and the empty groove region 1031 In the direction in which the transverse gap is extended, the air guiding groove 1034 serves mainly to prevent the bonding (as shown in FIG.
  • the second flexible glass layer 102 can be attached to the surface of the sealing layer 104 along the direction in which the air guiding grooves 1034 extend outward to discharge the air bubbles during the bonding process.
  • the specific arrangement positions of the air guiding grooves 1034 can be adjusted according to actual scene requirements, and the specific arrangement position, position combination and number of the air guiding grooves 1034 are not strictly limited in the present invention.
  • FIG. 8 is a schematic structural diagram of a flexible display module according to a first embodiment of the present invention.
  • the flexible display module provided by the first embodiment of the present invention includes a second flexible glass layer 102 , a polarizing layer 22 , a touch layer 23 , a display function layer 24 , and a first layer which are sequentially stacked from top to bottom.
  • the display panel 103 includes the polarizing layer 22, the third flexible glass layer 33, and the conductive material layer and the display function layer 24.
  • the display function layer 24 can be either an OLED functional layer or other film layers that function as display functions.
  • the specific implementation includes the following two situations:
  • the conductive material layer in the touch layer 23 is applied to the upper end surface of the third flexible glass layer 33 (the upper end surface shown in FIG. 2), and at this time, the third flexible glass in the touch layer 23 Layer 33 is in direct contact with display function layer 24.
  • the third flexible glass layer 33 that is in direct contact with the display function layer 24 needs to be adhesively fixed by means of an adhesive layer.
  • an adhesive layer In addition, in order to sufficiently block the destruction of the display functional layer 24 by substances such as water and oxygen from the outside, it is necessary to perform a packaging operation on the periphery of the adhesive layer between the third flexible glass layer 33 and the display functional layer 24 to form an encapsulation layer.
  • the layers are disposed along a periphery of the adhesive layer that is not in contact with other film layers of the flexible substrate.
  • the conductive material layer in the touch layer 23 is applied to the lower end surface of the third flexible glass layer 33 (the lower end surface as shown in FIG. 2).
  • the third flexible glass in the touch layer 23 A layer of conductive material applied to the third flexible glass layer 33 is included between the layer 33 and the display functional layer 24.
  • an adhesive layer (not shown) should be further included in the touch layer 23 and the display function layer 24, that is, the adhesive layer is disposed between the conductive material layer and the display function layer 24.
  • the encapsulation layer being disposed along a periphery of the conductive material layer and the adhesive layer not in contact with other film layers of the flexible substrate to substantially block external water and oxygen and the like Destruction of the display function layer 24.
  • the flexible substrate provided by the first embodiment of the present invention is applied to the third flexible glass layer 33 by a coating process to form a conductive material layer, and the third flexible glass layer 33 coated with the conductive material layer and other films are formed.
  • the manner in which the layers are stacked to form a flexible substrate finally achieves a reduction in the thickness of the flexible substrate and the number of layers while reducing the probability of film splitting occurring during the bending process.
  • FIG. 9 is a schematic structural diagram of a flexible display module according to a second embodiment of the present invention.
  • the flexible display module according to the second embodiment of the present invention includes a second flexible glass layer 102, a polarizing layer 22, an ultra-thin glass layer 33, and an ITO (conductive material) layer which are sequentially stacked from top to bottom. 34.
  • the pressure-sensitive adhesive layer 35, the OLED layer 16 and the first flexible glass layer 101, and the water-oxygen barrier rubber layer 36 disposed along the periphery of the ITO layer 34 and the pressure-sensitive adhesive layer 35 not in contact with the other film layers of the flexible substrate.
  • the water oxygen barrier rubber layer 36 is provided to sufficiently block the destruction of the OLED layer 16 by substances such as water and oxygen from the outside.
  • FIG. 10 is a schematic structural diagram of a flexible display module according to an embodiment of the present invention.
  • the flexible display module provided by the embodiment of the present invention includes: a first module material layer 1001 and a second module material layer 1003; and at least one layer 1001 disposed on the first module material layer
  • the strain barrier layer 1002 between the two module material layers 1003; wherein the strain barrier layer 1002 includes a chamber 002 and an elastic material layer 001 surrounding the periphery of the cavity.
  • the module material layer is a functional unit constituting the flexible display module, and each module material layer may be composed of a plurality of functional layers.
  • the module material layer may be the first flexible glass layer 101, the second flexible glass layer 102, or a functional layer in the display panel 103 (eg, substrate, thin film transistor device layer, organic light emitting diode device layer, touch screen, and polarized light)
  • the first and second qualifiers such as the first module material layer 1001 and the second module material layer 1003, are introduced in the embodiment of the present invention.
  • a strain barrier layer 1002 is disposed between the first module material layer 1001 and the second module material layer 1003. Since the strain barrier layer 1002 can effectively block the strain of the first module material layer 1001 and the second module material layer 1003, the first module material layer 1001 and the second module material can be effectively prevented from occurring when the bending deformation occurs.
  • the transmission of the strain between the layers 1003 reduces the strain of the first module material layer 1001 and the second module material layer 1003, thereby significantly improving the bending resistance of the flexible display module and improving the reliability of the product.
  • the flexible display module of the present invention is not limited to including only the first module material layer 1001 and the second module material layer 1003 shown in FIG. 10, and may also include more layers of module materials.
  • a strain barrier layer 1002 may be disposed between adjacent two layers of module material layers. The embodiment of the present invention does not specifically limit the number of layers of the module material layer and the adjacent barrier material layers 1002.
  • the chamber 002 may be filled with a gas, a liquid (such as silicone oil) or a vacuum, and may function to block strain.
  • a gas such as silicone oil
  • a vacuum a vacuum
  • the air pressure inside and outside the chamber 002 can be balanced.
  • the gas may be a mixture of one or more of air or an inert gas.
  • the air resources are abundant and convenient to collect, and the air filled in the chamber 002 can reduce the overall manufacturing cost of the flexible display module.
  • the gas can also be an inert gas. Since the chemical properties of the inert gas are stable and it is difficult to chemically react with the substance in contact with it, the use of an inert gas in the chamber 002 can increase the service life of the flexible display module.
  • the embodiment of the present invention does not specifically limit the kind of gas in the chamber 002.
  • the periphery of the second flexible glass layer 102 and the side of the groove of the first flexible glass layer 101 are encapsulated by a laser sintered glass powder process.
  • the encapsulated sealing layer 104 is as shown in FIG.
  • the laser-sintered sealing layer 104 fills a gap between the periphery of the second flexible glass layer 102 and the side of the groove of the first flexible glass layer 101, thereby preventing external water oxygen from entering the display panel 103 after the internal packaging is completed.
  • the upper surface of the display panel 103 is covered with a second flexible glass layer 102.
  • the lower surface and the side edges are covered with the protection of the first flexible glass layer 101, and the sealing layer 104 is surrounded for protection, effectively blocking the entry of moisture and oxygen, and improving The water-oxygen barrier property of the flexible display module.
  • the display panel 103 may also need to be electrically connected to an external circuit structure through conductive leads. This can be done by perforating the surface (either side, top or bottom) of the flexible glass layer 10, and then filling the holes with a conductive material to form conductive leads electrically connected to the display panel 103, the conductive material and the holes in the holes. The gap between them can be sealed with a sealing material.
  • a conductive film extending to the outer surface of the first flexible glass layer 101 may be first coated on the groove side of the first flexible glass layer 101, and the film is etched into a pattern of conductive leads, and then The second flexible glass layer 102 may be packaged with the first flexible glass layer 101.
  • the display panel 103 encapsulated in the flexible glass layer 10 can also form an electrical connection with the external circuit structure by other means, but the specific structure and formation manner of the conductive lead of the present invention are not limited.
  • FIG. 12 is a schematic structural diagram of a flexible display module according to an embodiment of the present invention.
  • the flexible display mode is used in addition to the first flexible glass layer 101, the second flexible glass layer 102, and the display panel 103 disposed on the first surface of the first flexible glass layer 101.
  • the group further includes a routing area 3 disposed on the second surface of the first flexible glass layer 101, wherein the second surface is a surface opposite to the first surface, and the routing area 3 is electrically connected to the display panel 103 of the first surface.
  • the first surface of the first flexible glass layer 101 is a front surface, and a TFT array layer, an anode layer, an organic light-emitting layer, a cathode layer and the like may be sequentially disposed thereon, and these functional layers collectively constitute the display panel 103.
  • the second surface of the first flexible glass layer 101 is the back surface, and the routing area 3 is disposed as a non-display portion at a corresponding position on the back surface of the first flexible glass layer 101, such as an edge region of the periphery, which greatly reduces the non-display area of the front surface of the device.
  • the area allows the device to achieve a narrow bezel or even a full screen display.
  • the routing area of the non-display portion is disposed on the back surface of the substrate, so that the OLED module is electrically connected to the front surface of the OLED module to complete the routing function, and the front surface of the display device is greatly reduced.
  • the area of the display area enables the device to achieve a narrow border or even a full screen display, thereby enhancing the display effect of the screen and improving the user's visual experience.
  • the first flexible glass layer 101 includes vias, and the circuit traces of the trace region 3 may be connected to the display panel 103 on the front side through via holes on the first flexible glass layer 101.
  • the via structure may be set in one-to-one correspondence with the circuit traces, or one via may be corresponding to a plurality of circuit traces, or one via may correspond to all circuit traces.
  • the holes may be punched by a laser or chemically, and the walls of the holes may be vapor-deposited with various conductive media such as copper.
  • the circuit traces of the rear trace region 3 of the first flexible glass layer 101 can be electrically connected to the front display panel 103 through the via holes.
  • the display panel 103 further includes a thin film encapsulation layer disposed on a surface of the organic light emitting diode of the display panel 103.
  • a thin film encapsulation layer disposed on a surface of the organic light emitting diode of the display panel 103.
  • the thin film encapsulation layer may be a layer of aluminum oxide prepared on the surface of the organic light emitting diode by atomic precipitation technology.
  • the material of the thin film encapsulation layer may also be other encapsulating materials such as zirconia.
  • the specific preparation process may also adopt other thin film preparation processes.
  • the specific material type and preparation method of the thin film encapsulation layer are not limited in the present invention.
  • the thickness of the thin film encapsulation layer needs to be sufficiently thin.
  • the thickness of the thin film encapsulation layer may be 25 nm to 50 nm, but the specific thickness of the thin film encapsulation layer is not limited in the present invention.
  • the display panel 103 may include a thin film encapsulation layer or a thin film encapsulation layer, and the present invention does not limit whether the display panel 103 includes a thin film encapsulation layer.
  • a frame having the shape of the preset curved surface may be prepared, and then the flexible display module provided by the embodiment of the present invention is installed into the frame.
  • the perimeter of the bezel may be less than the perimeter of the flexible display module.
  • the flexible display module itself has a bendable characteristic. When the flexible display module is mounted in a frame having a smaller circumference than the flexible display module, the flexible display module is curved into a curved surface by a plane.
  • installing the flexible display module into the frame may include: bonding the frame to the entire circumference of the flexible display module in a frame manner.
  • an annular groove can be provided on the inner surface of the bezel.
  • the depth of the annular groove is preferably 3-5 mm, which ensures that the mounting is secure and does not make the frame too thick.
  • the width of the annular groove can be equal to the thickness of the flexible display module.
  • the cross-sectional shape of the annular groove may be any one of a U shape, an arc shape, and a trapezoidal shape. However, the present invention does not strictly limit the depth, width and shape of the annular groove.
  • FIG. 13 is a schematic flow chart of a method for fabricating a flexible display module according to an embodiment of the present invention. As shown in FIG. 13, the method includes the following method steps:
  • Step 201 preparing or providing a first flexible glass layer 101 with a groove in between;
  • the first flexible glass layer 101 has good bendability characteristics. It can be understood that the first flexible glass layer 101 can be prepared or directly purchased from a third party, and the source of the first flexible glass layer 101 is not limited by the present invention.
  • Step 202 providing a display panel 103 in the recess of the first flexible glass layer 101;
  • the bottom of the display panel 103 is disposed at the bottom of the groove of the first flexible glass layer 101.
  • the cross-sectional area of the groove of the first flexible glass 101 is larger than the cross-sectional area of the display panel 103, so that the flexible display module can slide in the groove during the bending process, thereby further dispersing the bending stress.
  • the failure of the display panel 103 is prevented from being broken.
  • the bottom of the display panel 103 may be disposed at the bottom of the groove of the first flexible glass layer 101 by optical glue bonding or by silicone oil bonding, and the display panel 103 may be better in the concave when laminated by silicone oil.
  • the groove is slid to relieve the bending stress, but the present invention does not limit the specific arrangement and the bonding material.
  • Step 203 Providing a second flexible glass layer 102 on the display panel 103.
  • the lower surface of the second flexible glass layer 102 is disposed on the upper surface of the display panel 103, and after the setting is completed, the upper surface of the second flexible glass layer 102 should be kept at the same level as the upper surface of the first flexible glass layer 101.
  • the second flexible glass layer 102 should be located in the groove of the first flexible glass layer 101. Due to the presence of the first flexible glass layer 101, the sliding of the second flexible glass layer 102 is effectively suppressed, and the flexible display module is improved. Bending characteristics.
  • the second flexible glass layer 102 may be disposed on the display panel 103 by optical glue bonding or silicone oil bonding. When bonded by silicone oil, the display panel 103 may be better slid relative to the flexible glass layer 102. The bending stress is alleviated, but the present invention does not limit the specific arrangement and the bonding materials used.
  • Step 204 The periphery of the second flexible glass layer 102 is packaged with the side of the groove of the first flexible glass layer 101.
  • the gap between the second flexible glass layer 102, the display panel 103, and the first flexible glass layer 101 having the groove in the middle is encapsulated by the laser-sintered glass powder, and has a first flexible glass layer 101 with a groove in between.
  • the presence of the second flexible glass layer 102 effectively buffers the stress experienced by the sealing layer 104 during the bending process, thereby alleviating the fracture and shear problems of the brittle sealing layer 104 during the bending process.
  • the upper surface of the display panel 103 has a second flexible glass layer 102 for protection, and the lower surface of the first flexible glass is protected by a sealing layer 104, which greatly reduces the area exposed by the substrate in the air. Has a high water and oxygen barrier efficiency. And due to the presence of the groove of the first flexible glass, the slip of the upper glass is effectively suppressed, thereby having better bending resistance.
  • the display panel 103 includes: a substrate, a thin film transistor device layer, an organic light emitting diode device layer, a thin film encapsulation layer, a touch screen, and a polarizing plate which are sequentially stacked; or: a substrate and a film which are sequentially stacked Transistor device layer, organic light emitting diode device layer, touch screen and polarizer.
  • a thin film encapsulation layer can be prepared on the surface of the organic light emitting diode of the display panel 103.
  • a thin film encapsulation layer is prepared by atomic layer deposition on the surface of the organic light emitting diode of the display panel 103.
  • the thin film encapsulation layer can be prepared by atomic layer deposition, but the present invention does not limit the specific method for preparing the thin film encapsulation layer.
  • the material of the thin film encapsulation layer may be aluminum oxide or zirconia, but the specific material type of the thin film encapsulation layer is not limited in the present invention.
  • the thickness of the thin film encapsulation layer may be 25 nm to 50 nm, but the specific thickness of the thin film encapsulation layer is not limited in the present invention.
  • the organic light emitting diode of the display panel 103 reduces the area exposed to the air, thereby improving the water and oxygen barrier efficiency.
  • the display panel 103 may include a thin film encapsulation layer or a thin film encapsulation layer.
  • the present invention does not limit whether the display panel 103 includes a thin film encapsulation layer.
  • the flexible display module prepared by the embodiment of the present invention encapsulates the display panel 103 inside the flexible glass layer 10, so that even after removing the thin film encapsulation layer which is easily bent and broken in the structure of the existing display panel 103, The package performance can be satisfied, and the erosion of the display device of the display panel 103 by the external water and oxygen can also be avoided.
  • the excellent bending resistance of the flexible glass itself can meet the bending requirements of the flexible display module, thereby effectively solving the problem that the display panel 103 is prone to breakage during the bending process of the existing flexible display module.
  • this structural design enables the flexible glass layer 10 to disperse the stress experienced by the display panel 103 during the bending process, further avoiding the fracture failure of the display panel 103 during the bending process.

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Abstract

一种柔性显示模组及其制备方法，解决了现有的柔性显示模组弯折后易失效的问题。柔性显示模组包括：柔性玻璃层（10）以及设置于所述柔性玻璃层（10）内部的显示面板（103）。

Description

一种柔性显示模组及其制备方法
交叉引用
本申请要求2017年10月31日提交的申请号为No.201711051573.7的中国申请的优先权，通过引用将其全部内容并入本文。
技术领域
本发明涉及一种显示技术领域，具体涉及一种柔性显示模组及其制备方法。
发明背景
随着显示技术的飞速发展，柔性显示面板由于薄型轻量、抗摔、可弯曲、省电节能等优点得到众多使用者的青睐，已成为最近研究的热点。
现有的柔性显示模组包括盖板(cover film)，偏光片，柔性触摸屏和显示发光器件(例如OLED(organic light emitting diode，有机发光二极管))等，为了避免外界水氧对显示发光器件的侵蚀，还需要在显示器件的表面制备TFE(薄膜封装层)。但是由于经多次试验证明，在弯折过程中，柔性显示模组主要的失效位置在于TFE与显示发光器件的连接处，因为TFE中较厚的无机层容易发生断裂，进而导致TFE和显示发光器件发生剥离，最终使得整体柔性显示模组失效。
发明内容
有鉴于此，本发明实施例提供了一种柔性显示模组及其制备方法，解决了柔性显示模组弯折后易失效的问题。
本发明一实施例提供的一种柔性显示模组及其制备方法，包括：
柔性玻璃层；以及
设置于所述柔性玻璃层内部的显示面板。
其中，所述柔性玻璃层包括：
中间带有凹槽的第一柔性玻璃层；
设置于所述第一柔性玻璃层表面的第二柔性玻璃层；以及
所述显示面板设置于所述第一柔性玻璃层的凹槽内。
其中，所述凹槽的尺寸大于所述显示面板的尺寸。
其中，所述第二柔性玻璃层的周边与所述第一柔性玻璃层的所述凹槽的侧边采用激光烧结玻璃粉工艺完成封装。
其中，所述柔性玻璃层包括：
叠加的第一柔性玻璃层和第二柔性玻璃层；以及
设置在所述第一柔性玻璃层和所述第二柔性玻璃层之间的密封层；
其中，所述密封层中部包括空槽区域；
其中，所述显示面板设置在所述密封层的所述空槽区域中，所述空槽区域的底面积尺寸大于所述显示面板的尺寸。
其中，进一步包括：
设置在所述显示面板和所述第一柔性玻璃层之间的第一硅油层；和/或，
设置在所述显示面板和所述第二柔性玻璃层之间的第二硅油层。
其中，所述密封层与所述第一柔性玻璃层和/或第二柔性玻璃层之间通过粘合层贴合。
其中，所述密封层采用硅橡胶制成。
其中，所述显示面板包括用于与外部电路结构形成电连接的绑定端；
其中，所述密封层包括框边部和开口框部，所述开口框部与所述框边部组合成框型，所述框边部压在所述显示面板的所述绑定端表面并露出所述绑定端的绑定引脚。
其中，所述显示面板包括与所述第一柔性玻璃层和/或所述第二柔性玻璃层相固定的固定区域，其中所述固定区域起始于所述绑定端。
其中，所述密封层包括至少一个导气槽以及用于密封所述导气槽的密封材料。
其中，所述密封层包括多个所述导气槽，分别设置在所述柔性显示模组的预设弯折区域和/或所述显示面板与所述空槽区域之间缝隙的延伸方向上。
其中，所述显示面板包括偏光层、触控层和显示功能层，其中所述触控层包括第三柔性玻璃层和设置于所述第三柔性玻璃层一侧的导电材料层。
其中，采用涂覆的方式将将导电材料涂覆到所述第三柔性玻璃层的一侧形成所述导电材料层。
其中，包括：
至少一个应变隔断层，其中，所述应变隔断层包括腔室以及包围在所述腔室***的弹性材料层；
其中，所述显示面板包括至少两个功能层，所述至少一个应变隔断层设置在各个所述功能层之间；和/或，所述应变隔断层设置在所述第一柔性玻璃层和所述显示面板之间；和/或，所述应变隔断层设置在所述显示面板和所述第二柔性玻璃层之间。
其中，所述腔室内填充有气体。
其中，所述气体包括以下几种中的一种或多种：空气和惰性气体。
其中，进一步包括走线区域，设置在所述第一柔性玻璃层的第二表面上，构造为与所述显示面板电连接；
其中所述显示面板设置于所述第一柔性玻璃层的所述第一表面上，所述第一表面和所述第二表面为相对表面。
其中，所述第一柔性玻璃层包括过孔，所述走线区域的电路走线通过所述过孔将所述显示面板和外部电路电连接。
其中，所述显示面板包括：依次叠加的衬底、薄膜晶体管器件层、有机发光二极管器件层、触摸屏和偏振光片。
其中，所述显示面板进一步包括：
薄膜封装层，设置在所述有机发光二极管器件层表面。
其中，所述薄膜封装层采用原子层沉积完成制备；和/或，
所述薄膜封装层的材料为氧化铝；和/或，
所述薄膜封装层的厚度为25nm-50nm。
一种显示屏，包括上述任一所述柔性显示模组以及具有预设曲面形状的边框，其中所述柔性显示模组置于所述边框中，其中所述边框的周长小于所述柔性显示模组的周长。
其中，所述边框框贴在所述柔性显示模组的四周。
其中，所述边框的内表面包括环形凹槽。
其中，所述环形凹槽的深度为3-5毫米。
其中，所述环形凹槽的断面形状为弧形、梯形、U形中的任一种。
其中，包括：
制备或提供中间带有凹槽的第一柔性玻璃层；
在所述第一柔性玻璃层的凹槽内设置显示面板；
在所述显示面板上设置所述第二柔性玻璃层；以及
将所述第二柔性玻璃层的周边与所述第一柔性玻璃层的所述凹槽的侧边进行封装。
其中，采用激光烧结玻璃粉工艺对所述第二柔性玻璃层的周边与所述第一柔性玻璃层的所述凹槽的侧边进行封装。
其中，所述显示面板包括：依次叠加的衬底、薄膜晶体管器件层、有机发光二极管器件层、薄膜封装层、触摸屏和偏振光片；或，
所述显示面板包括：依次叠加的衬底、薄膜晶体管器件层、有机发光二极管器件层、触摸屏和偏振光片。
本发明实施例提供的一种柔性显示模组及其制备方法，将显示面板封装在柔性玻璃层内部，这样即使在去除现有显示面板结构中易弯断裂的薄膜封装层后，仍能够满足封装性能，同样能够避免外界水氧对显示面板的显示器件的侵蚀。同时柔性玻璃本身优良的耐弯折性能又能满足柔性显示模组的弯折需求，从而有效解决了现有柔性显示模组在弯折过程中显示面板容易发生断裂失效的问题。此外，这种结构设计使得在弯折过程中，柔性玻璃层能够分散显示面板所承受的应力，进一步避免弯折过程中显示面板的断裂失效。
附图简要说明
图1所示为本发明一实施例提供的一种柔性显示模组的俯视示意图。
图2所示为本发明一实施例提供的一种柔性显示模组的俯视示意图。
图3所示为本发明一实施例提供的一种柔性显示模组的主视示意图。
图4所示为本发明一实施例提供的一种中间带有凹槽的第一柔性玻璃示意图。
图5所示为本发明一实施例提供的一种柔性显示模组的结构示意图。
图6所示为本发明一实施例提供的一种柔性显示模组的结构示意图。
图7所示为本发明一实施例提供的一种柔性显示模组的结构示意图。
图8所示为本发明一实施例提供的一种柔性显示模组的结构示意图。
图9所示为本发明一实施例提供的一种柔性显示模组的结构示意图。
图10所示为本发明一实施例提供的柔一种性显示模组的结构示意图。
图11所示为本发明一实施例提供的一种柔性显示模组的示意图。
图12所示为本发明一实施例提供的一种柔性显示模组的结构示意图。
图13本发明一实施例提供的一种柔性显示模组的制备方法流程示意图。
实施本发明的方式
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，都属于本发明保护的范围。
图1所示为本发明一实施例提供的一种柔性显示模组的俯视示意图。
该柔性显示模组包括：柔性玻璃层10，以及设置于柔性玻璃层的内部的显示面板103。
柔性玻璃具有可弯折特性。经试验，该柔性玻璃层可以承受住10万次弯折半径为5mm的弯折疲劳性测试。显示面板103是指在柔性显示模组中起到显示作用的面板，根据其显示原理不同可包括有机电致发光(OLED)、电泳显示(EPD)、液晶显示(LCD)装置、薄膜晶体管(TFT)发光等多种类型。本发明一实 施例中，显示面板103的结构可包括：依次叠加的衬底、薄膜晶体管器件层、有机发光二极管器件层、触摸屏和偏振光片等。本发明对显示面板103的具体显示方式和结构不做限定。
由此可见，通过将显示面板103封装在柔性玻璃层10内部，这样即使在去除现有显示面板103结构中易弯断裂的薄膜封装层后，仍能够满足封装性能，同样能够避免外界水氧对显示面板103的显示器件的侵蚀。同时柔性玻璃本身优良的耐弯折性能又能满足柔性显示模组的弯折需求，从而有效解决了现有柔性显示模组在弯折过程中显示面板103容易发生断裂失效的问题。此外，这种结构设计使得在弯折过程中，柔性玻璃层10能够分散显示面板103所承受的应力，进一步避免弯折过程中显示面板103的断裂失效。
图2和图3分别所示为本发明一实施例提供的一种柔性显示模组的俯视示意图和主视示意图。
如图2和图3所示，该柔性显示模组包括：
柔性玻璃层10由第一柔性玻璃层101和第二柔性玻璃层102共同组成。第一柔性玻璃层101中间带有凹槽，如图4所示。该中间带有凹槽的第一柔性玻璃层101可以通过在一块柔性玻璃的中间通过刻蚀等方法进行挖槽制备。
设置于柔性玻璃层10的内部的显示面板103，即显示面板103位于第一柔性玻璃层101和第二柔性玻璃层102之间，利用柔性玻璃将显示面板103包裹起来。
应当理解，该中间带有凹槽的第一柔性玻璃101可以自己制备，也可直接通过玻璃销售公司购买得来，其中的凹槽可通过刻蚀等工艺方法制得，本发明对该中间带有凹槽的第一柔性玻璃101的来源或制备方式不作限定。
显示面板103设置在第一柔性玻璃层101的凹槽内。可以采用使用光学胶的贴合方式，将显示面板103设置在第一柔性玻璃层101的凹槽中。由于有第一柔性玻璃层101的凹槽的存在，有效的限制了第二柔性玻璃层102的滑动范围，防止第二柔性玻璃层102在弯折的过程中发生过度的位置偏移而导致柔性显示模组整体失效。
第二柔性玻璃层102设置在显示面板103上，将第二柔性玻璃层102通过光学胶贴合在显示面板103上，并且设置完成后，第二柔性玻璃层102的上表面应当与第一柔性玻璃层101的上表面保持同一水平。在本发明一实施例中，中间带有凹槽的第一柔性玻璃101的凹槽的横截面积要大于显示面板103的横截面积，这样柔性显示模组在弯折过程中，显示面板103可以在凹槽中滑动，从而可进一步分散弯折应力，避免显示面板103的断裂失效。并且第二柔性玻璃层102应当位于第一柔性玻璃层101的凹槽中，由于第一柔性玻璃层101的存在，有效的抑制了第二柔性玻璃层102的滑移，提高了柔性显示模组耐弯折特性。
应当理解，显示面板103设置在第一柔性玻璃101的凹槽内的方式可以是通过光学胶粘合或通过硅油贴合等，当通过硅油贴合时，显示面板103可在凹槽内更好地滑动以缓解弯折应力，但本发明对具体的设置方式和所采用的结合材料不作限定。
图5所示为本发明一实施例提供的一种柔性显示模组的结构示意图。如图5所示，该柔性显示模组包括：叠加的第一柔性玻璃层101和第二柔性玻璃层102、设置在第一柔性玻璃层101和第二柔性玻璃层102之间的密封层104、以及显示面板103。密封层104中部包括空槽区域1031，显示面板103设置在密封层104的空槽区域1031中，其中空槽区域1031的底面积尺寸大于显示面板103的尺寸。
由此可见，本发明实施例采用柔性玻璃层替代现有柔性显示模组中的衬底和盖板。由于柔性玻璃本身具有优良的挺度和耐弯折性能，可有效解决现有柔性显示模组在挺度和预防膜层***之间存在需求矛盾的问题。同时，由于显示面板103是设置在第一柔性玻璃层101和第二柔性玻璃层102之间的空槽区域1031中，且空槽区域1031的底面积尺寸大于显示面板103的尺寸，这样当柔性显示面板103发生弯折时，显示面板103可在空槽区域1031中相对于第一柔性玻璃层101和第二柔性玻璃层102滑动，从而缓解了弯折应力，可有效避免显示面板103内部的膜层分层，进一步提高了柔性显示模组的耐弯折性能，提高了产品的可靠性。
应当理解，密封层104中空槽区域1031的具体形状可根据显示面板103的形状而调整。一般来说，只要比显示面板103稍大一些且与显示面板103呈相同的形状即可。例如当显示面板103呈矩形时，密封层104中的空槽区域1031也可呈矩形，只不过该空槽区域1031的底面积尺寸比显示面板103大，以便于显示面板103在弯折的过程中在空槽区域1031中滑动。本发明对密封层104中空槽区域1031的具体形状不做限定。
在本发明一实施例中，为了使得显示面板103在弯折过程中在空槽区域1031中的滑动更加灵活顺畅，可在显示面板103和第一柔性玻璃层101之间设置第一硅油层，和/或在显示面板103和第二柔性玻璃层102之间设置第二硅油层。然而应当理解，即使没有第一硅油层和第二硅油层，显示面板103也是可以在空槽区域1031中滑动的，本发明对该柔性显示模组是否包括该第一硅油层和第二硅油层不做限定。
在本发明一实施例中，密封层104与第一柔性玻璃层101和/或第二柔性玻璃层102之间通过粘合层贴合固定。粘合层的材质可采用透明的光学粘结剂(OCA(Optically Clear Adhesive))，然而本发明对粘合层的具体材质不做限定。
在本发明一实施例中，密封层104可采用硅橡胶制成。硅橡胶材料可随着弯折应力的变化而发生弹性变形，具有良好的耐弯折性能和密封性能。然而应当理解，密封层104也可采用其他密封材料制成，本发明对密封层104的具体材质也不做限定。
图6所示为本发明一实施例提供的一种柔性显示模组的结构示意图。如图6所示，该柔性显示模组的显示面板103包括用于与外部电路结构形成电连接的绑定端1041。此时考虑到在制备该柔性显示模组的过程中，呈一体框型的密封层104无法满足显示面板103通过绑定端1041与外部结构形成电连接的需求，该密封层104可设计为包括分立的框边部1032和开口框部1033，开口框部1033与框边部1032组合成框型。这样在制备该密封层104时，其实是先制备开口框部1033，并在将显示面板103贴合在该开口框部1033的开口区域中后，再将框边部1032压合在显示面板103的绑定端1041表面并露出绑定端1041的绑定引脚。
在本发明一实施例中，显示面板103可包括与第一柔性玻璃层101和/或第二柔性玻璃层102相固定的固定区域，以及可相对第一柔性玻璃层101和第二柔性玻璃层102滑动的可滑动区域，其中固定区域起始于绑定端1041。例如，当密封层104可包括分立的框边部1032和开口框部1033时，框边部1032就可将显示面板103的绑定端1041压合固定在第一柔性玻璃层101上。这样显示面板103的绑定端1041便会处于相对于第一柔性玻璃层101的固定状态，而显示面板103可滑动区域则处于可相对第一柔性玻璃层101和第二柔性玻璃层102滑动的可滑动状态。当柔性显示模组在弯折时，处于固定状态的固定区域则会保持固定，而处于滑动状态的可滑动区域则可通过滑动来缓解弯折应力，以避免显示面板103内部的膜层***。
然而应当理解，虽然在图6所示的实施例中，固定区域起始于绑定端1041并延伸至显示面板103二分之一的面积，但本发明对该固定区域的具体大小并不做严格限定，只要处于滑动状态的区域可通过滑动来缓解弯折应力即可，具体固定区域的大小、位置和形状都可根据实际的场景需求而调整。
图7所示为本发明一实施例提供的一种柔性显示模组的结构示意图。如图7所示，该柔性显示模组的密封层104包括至少一个导气槽1034以及用于密封导气槽1034的密封材料。这些导气槽1034可在贴合第二柔性玻璃层102的过程中，将贴合过程所产生的气泡导出，以避免这些气泡遗留在第二柔性玻璃层102和显示面板103之间。在第二柔性玻璃层102的贴合过程完成后，利用密封材料将该至少一个导气槽1034密封。
在本发明一实施例中，密封层104可包括多个导气槽1034，该多个导气槽1034可分别设置在柔性显示模组的预设弯折区域和/或显示面板103与空槽区域1031之间缝隙的延伸方向上。例如，当显示面板103呈矩形时，导气槽1034可设置在显示面板103与空槽区域1031之间纵向缝隙的延伸方向上(如图4所示)，显示面板103与空槽区域1031之间横向缝隙的延伸方向上，导气槽1034主要作用是防止贴合之后的(如图5所示)，或预设弯折区域处(如图6所示)。这样便可沿着这些导气槽1034向外部延伸的方向将将第二柔性玻璃层102贴合在密封层104表面，以将贴合过程中的气泡排出。然而应当理解，这些导气槽1034的具体 设置位置可根据实际的场景需求而调整，本发明对这些导气槽1034的具体设置位置、位置组合和数量均并不做严格限定。
图8所示为本发明第一实施例提供的柔性显示模组的结构示意图。如图8所示，本发明第一实施例提供的柔性显示模组包括依次自上而下层叠设置的第二柔性玻璃层102、偏光层22、触控层23、显示功能层24和第一柔性玻璃层101，其中，触控层23包括第三柔性玻璃层33和涂覆到第三柔性玻璃层33一侧的导电材料层(图中未示出)。由此可见，在图11所示的实施例中显示面板103包括了偏光层22、第三柔性玻璃层33以及导电材料层以及显示功能层24。应当理解，显示功能层24既可以为OLED功能层，又可以为其他起到显示功能的膜层。
具体实现包括下述两种情况：
第一种情况：触控层23中的导电材料层涂覆到第三柔性玻璃层33的上端面(如图2所示的上端面)，此时，触控层23中的第三柔性玻璃层33与显示功能层24直接接触。
直接接触的第三柔性玻璃层33与显示功能层24之间需要借助粘合层进行粘合固定。此外，为了充分阻隔外界的水氧等物质对显示功能层24的破坏，需要对第三柔性玻璃层33与显示功能层24之间的粘合层的***进行封装操作以形成封装层，该封装层沿粘合层的未与柔性基板的其它膜层接触的***设置。
第二种情况：触控层23中的导电材料层涂覆到第三柔性玻璃层33的下端面(如图2所示的下端面)，此时，触控层23中的第三柔性玻璃层33与显示功能层24之间包括涂覆到第三柔性玻璃层33的导电材料层。此外，为了牢固粘合，触控层23中与显示功能层24之间还应当包括粘合层(图中未示出)，即粘合层设置于导电材料层和显示功能层24之间，并且对导电材料层和粘合层进行封装操作形成封装层，该封装层沿导电材料层和粘合层的未与柔性基板的其它膜层接触的***设置，以充分阻隔外界的水氧等物质对显示功能层24的破坏。
本发明第一实施例提供的柔性基板通过将导电材料采用涂覆工艺涂覆到第三柔性玻璃层33以形成导电材料层，将涂覆有导电材料层的第三柔性玻璃层33与其他膜层层叠设置从而生成柔性基板的方式，最终实现了在降低柔性基板厚度和膜层数量的同时降低弯折过程中发生膜层***情况的几率。
图9所示为本发明第二实施例提供的柔性显示模组的结构示意图。如图9所示，本发明第二实施例提供的柔性显示模组包括依次自上而下层叠设置的第二柔性玻璃层102、偏光层22、超薄玻璃层33、ITO(导电材料)层34、压敏胶层35、OLED层16和第一柔性玻璃层101，以及沿ITO层34和压敏胶层35未与柔性基板的其它膜层接触的***设置的水氧阻隔胶材层36，设置水氧阻隔胶材层36以充分阻隔外界的水氧等物质对OLED层16的破坏。
图10所示为本发明一实施例提供的柔性显示模组的结构示意图。
如图10所示，本发明实施例提供的柔性显示模组包括：叠加的第一模组材料层1001和第二模组材料层1003；以及至少一个设置在第一模组材料层1001和第二模组材料层1003之间的应变隔断层1002；其中，应变隔断层1002包括腔室002以及包围在腔室***的弹性材料层001。
应当理解，模组材料层为构成柔性显示模组的功能单元，每个模组材料层又有可能由多个功能层构成。例如，模组材料层可以是第一柔性玻璃层101、第二柔性玻璃层102、或显示面板103中的功能层(例如衬底、薄膜晶体管器件层、有机发光二极管器件层、触摸屏和偏振光片等)，为了将不同的模组材料层区分开，本发明实施例引入了第一和第二等限定词，如第一模组材料层1001和第二模组材料层1003等。
本发明实施例提供的柔性显示模组，在第一模组材料层1001和第二模组材料层1003之间设置应变隔断层1002。由于应变隔断层1002可以有效地将第一模组材料层1001和第二模组材料层1003的应变隔断，因此可以有效地阻止发生弯曲变形时第一模组材料层1001和第二模组材料层1003之间的应变的传递，降低第一模组材料层1001和第二模组材料层1003的应变从而显著提高了柔性显示模组的耐弯折性能，提高了产品 的可靠性。
然而应当理解，本发明实施例提供柔性显示模组不限于仅包括图10所示的第一模组材料层1001和第二模组材料层1003，也可包括更多层模组材料层。并且相邻的两层模组材料层之间均可设置应变隔断层1002。本发明实施例对模组材料层的层数以及相邻的哪些模组材料层之间设置应变隔断层1002不作具体限定。
在一个实施例中，腔室002内可填充有气体、液体(如硅油)也可为真空状态，都可起到隔断应变的作用。然而腔室002内填充有气体时，可以平衡腔室002内外部的气压。
在一个实施例中，气体可为空气或惰性气体中的一种或几种的混合。空气资源丰富并且采集方便，腔室002内填充空气可以降低柔性显示模组的整体制作成本。气体也可为惰性气体，由于惰性气体的化学性能稳定，不易和与其接触物质发生化学反应，因此腔室002中采用惰性气体可以提高柔性显示模组的使用寿命。然而应当理解，本发明实施例对腔室002中的气体的种类不做具体限定。
本发明一实施例中，第二柔性玻璃层102的周边与第一柔性玻璃层101的凹槽的侧边采用激光烧结玻璃粉工艺完成封装。封装后的密封层104如图11所示。激光烧结后的密封层104填充了第二柔性玻璃层102的周边和第一柔性玻璃层101的凹槽的侧边之间的缝隙，从而避免了外部水氧进入显示面板103内部封装完成后的显示面板103上表面覆盖有第二柔性玻璃层102，下表面和侧边覆盖有第一柔性玻璃层101的保护，四周有密封层104进行保护，有效地阻隔了水分和氧气的进入，提升了该柔性显示模组的水氧阻隔性能。
此外，在实际的应用场景下，该显示面板103可能还需通过导电引线与外部电路结构进行电连接。这可以通过在柔性玻璃层10的表面(侧面、上面或底面均可)进行打孔，然后在孔中填充导电材料来形成与显示面板103电连接的导电引线，孔中的导电材料与孔之间的间隙可采用密封材料密封。或者，还可以在第一柔性玻璃层101的凹槽侧面先镀一层延伸至第一柔性玻璃层101外表面的具有导电性能的薄膜，将该薄膜刻蚀成导电引线的图案，然后再将第二柔性玻璃层102与第一柔性玻璃层101封装即可。然而应当理解，该封装在柔性玻璃层10中的显示面板103还可通过其他的方式形成与外部电路结构的电连接，但本发明对该导电引线的具体结构和形成方式并不作限定。
图12所示为本发明一实施例提供的一种柔性显示模组的结构示意图。如图12所示，除了之前的实施例中提到的第一柔性玻璃层101、第二柔性玻璃层102以及设置于第一柔性玻璃层101第一表面的显示面板103外，该柔性显示模组还包括设置于第一柔性玻璃层101第二表面的走线区域3，其中第二表面为与第一表面相对的表面，该走线区域3与第一表面的显示面板103电性连接。
在本实施例中，第一柔性玻璃层101的第一表面即为正面，其上可依次设置TFT阵列层、阳极层、有机发光层和阴极层等，这些功能层共同构成显示面板103，成为显示器件的显示区域。第一柔性玻璃层101的第二表面即为背面，走线区域3作为非显示部分设置于第一柔性玻璃层101背面的相应位置，如四周的边缘区域，大大减小了器件正面非显示区域的面积，使得器件可实现窄边框甚至是全面屏的显示效果。
在本实施例提供的显示器件中，将非显示部分的走线区域设置于基板的背面，使其与正面的OLED模块电性连接完成走线功能的同时，大大减小了显示器件正面的非显示区域面积，使得器件实现了窄边框甚至是全面屏的显示，从而增强了屏幕的显示效果，提升了用户的视觉体验。
在本发明一实施例中，第一柔性玻璃层101包括过孔，则走线区域3的电路走线可通过第一柔性玻璃层101上的过孔连接至位于正面的显示面板103。具体地，该过孔结构可以与电路走线一一对应设置，也可以设置一个过孔对应多条电路走线，或者一个过孔对应所有电路走线。对于过孔的形成，可通过激光进行打孔，也可通过化学方法实现，孔壁可蒸镀如铜等各种导电介质。这样，第一柔性玻璃层101背面走线区域3的电路走线就可通过过孔与正面的显示面板103形成电性连接。
本发明一实施例中，显示面板103进一步包括薄膜封装层，设置在显示面板103的有机发光二极管的表面。通过进一步设置薄膜封装层，进一步保证了显示面板103的有机发光二极管不与空气接触，提高了水氧 阻隔性能。
本发明一实施例中，薄膜封装层可以是通过原子沉淀技术在有机发光二极管的表面制备的一层氧化铝。然而可以理解，薄膜封装层的材料也可以是例如氧化锆的其他封装材料，具体的制备工艺也可采用其他的薄膜制备工艺，本发明对薄膜封装层的具体材料类型和制备方法不作限定。
本发明一实施例中，为了确保该薄膜封装层在弯折的过程中不易折断，该薄膜封装层的制备厚度需足够薄。例如，薄膜封装层的厚度可以是25nm-50nm，但本发明对薄膜封装层的具体厚度不作限定。
应当理解，在本发明的实施例中，显示面板103可包括薄膜封装层也可没有薄膜封装层，本发明对显示面板103是否包含有薄膜封装层不作限定。
在本发明一实施例中，当所要制备的最终显示屏产品需要有预设的曲面形状时(例如中间为平面且四周为曲面的2.5D曲面，或中间和四周均为曲面的3D曲面)，可先制备一个具有该预设曲面形状的边框，然后再将本发明实施例所提供的柔性显示模组安装到该边框内。该边框的周长可小于柔性显示模组的周长。柔性显示模组本身具有可弯曲特性，当将该柔性显示模组安装到周长比该柔性显示模组小的边框中时，该柔性显示模组便由平面弯曲成了曲面。
在一个实施例中，将柔性显示模组安装到边框内可包括：将边框以框贴的方式贴合到柔性显示模组的整体的四周。为了确保柔性显示模组安装的更牢靠，可以在边框的内表面设置环形凹槽。
环形凹槽的深度优选3-5毫米，这样既可以保证安装牢靠，又不至于使边框过于厚重。环形凹槽的宽度可等于柔性显示模组的厚度。环形凹槽的断面形状可以是U形、弧形、梯形中的任一种。然而本发明对环形凹槽的深度、宽度及形状不做严格限定。
图13所示为本发明一实施例提供的一种柔性显示模组的制备方法流程示意图。如图13所示，该方法包括如下方法步骤：
步骤201：制备或提供中间带有凹槽的第一柔性玻璃层101；
该第一柔性玻璃层101具有良好的可弯折特性。可以理解，该第一柔性玻璃层101可以通过制备或者也可以是直接从第三方购买得来的，本发明对第一柔性玻璃层101的来源不作限定。
步骤202：在第一柔性玻璃层101的凹槽内设置显示面板103；
将显示面板103的底部设置在第一柔性玻璃层101凹槽的底部。第一柔性玻璃101的凹槽的横截面积要大于显示面板103的横截面积，这样柔性显示模组在弯折过程中，显示面板103可以在凹槽中滑动，从而可进一步分散弯折应力，避免显示面板103的断裂失效。应当理解，显示面板103的底部可以通过光学胶粘合或者通过硅油贴合的方式设置在第一柔性玻璃层101凹槽的底部，当通过硅油贴合时，显示面板103可更好地在凹槽内滑动以缓解弯折应力，但本发明对具体的设置方式和结合材料不作限定。
步骤203：在显示面板103上设置第二柔性玻璃层102。
将第二柔性玻璃层102的下表面设置在显示面板103的上表面，完成设置后，第二柔性玻璃层102的上表面应当与第一柔性玻璃层101的上表面保持同一水平。第二柔性玻璃层102应当位于第一柔性玻璃层101的凹槽中，由于第一柔性玻璃层101的存在，有效的抑制了第二柔性玻璃层102的滑移，提高了柔性显示模组耐弯折特性。
应当理解，第二柔性玻璃层102可通过光学胶粘合或硅油贴合的方式设置在显示面板103上，当通过硅油贴合时，显示面板103可更好地相对于柔性玻璃层102滑动以缓解弯折应力，但本发明对具体的设置方式和所采用的结合材料不作限定。
步骤204：第二柔性玻璃层102的周边与第一柔性玻璃层101的凹槽的侧边进行封装。
第二柔性玻璃层102、显示面板103和中间带有凹槽的第一柔性玻璃层101之间的空隙，通过激光烧结玻璃粉封装后，由于有中间带有凹槽的第一柔性玻璃层101和第二柔性玻璃层102的存在，有效的缓冲了密 封层104在弯折过程中所承受的应力，从而减缓了脆性的密封层104在弯折过程中出现的断裂和剪切问题。
封装完成后的显示面板103上表面有第二柔性玻璃层102进行保护，下表面第一柔性玻璃的保护，四周有密封层104进行保护，大大的减少了示基板裸露在空气中的面积，因此具有较高的水氧阻隔效率。并且由于第一柔性玻璃的凹槽的存在，有效的抑制了上层玻璃的滑移，从而具有较好的耐弯折特性。
本发明一实施例中，显示面板103包括：依次叠加的衬底、薄膜晶体管器件层、有机发光二极管器件层、薄膜封装层、触摸屏和偏振光片；或，包括：依次叠加的衬底、薄膜晶体管器件层、有机发光二极管器件层、触摸屏和偏振光片。
也就是说，可在显示面板103的有机发光二极管表面制备薄膜封装层。通过原子层沉积在显示面板103的有机发光二极管表面制备薄膜封装层。然而可以理解，薄膜封装层可以采用原子层沉积制备而来，但本发明对具体的薄膜封装层制备方法不作限定。还可以理解，薄膜封装层的材料可以是氧化铝，也可以是氧化锆，但本发明对薄膜封装层的具体材料类型不作限定。还可以理解，薄膜封装层的厚度可以是25nm-50nm，但本发明对薄膜封装层的具体厚度不作限定。
由于制备了该薄膜封装层，使显示面板103的有机发光二极管减少了暴露在空气中的面积，提高了水氧阻隔效率。
应当理解，显示面板103可包括薄膜封装层也可没有薄膜封装层，本发明对显示面板103是否包含有薄膜封装层不作限定。
由此可见，通过本发明实施例所制备的柔性显示模组，将显示面板103封装在柔性玻璃层10内部，这样即使在去除现有显示面板103结构中易弯断裂的薄膜封装层后，仍能够满足封装性能，同样能够避免外界水氧对显示面板103的显示器件的侵蚀。同时柔性玻璃本身优良的耐弯折性能又能满足柔性显示模组的弯折需求，从而有效解决了现有柔性显示模组在弯折过程中显示面板103容易发生断裂失效的问题。此外，这种结构设计使得在弯折过程中，柔性玻璃层10能够分散显示面板103所承受的应力，进一步避免弯折过程中显示面板103的断裂失效。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换等，均应包含在本发明的保护范围之内。

Claims (20)

  1. 一种柔性显示模组，包括：
    柔性玻璃层；以及
    设置于所述柔性玻璃层内部的显示面板。
  2. 根据权利要求1所述的柔性显示模组，其中，所述柔性玻璃层包括：
    中间带有凹槽的第一柔性玻璃层；以及
    设置于所述第一柔性玻璃层表面的第二柔性玻璃层；
    所述显示面板设置于所述第一柔性玻璃层的凹槽内。
  3. 根据权利要求2所述的柔性显示模组，其中，所述凹槽的尺寸大于所述显示面板的尺寸，
    其中，所述第二柔性玻璃层的周边与所述第一柔性玻璃层的所述凹槽的侧边采用激光烧结玻璃粉工艺完成封装。
  4. 根据权利要求1所述的柔性显示模组，其中，所述柔性玻璃层包括：
    叠加的第一柔性玻璃层和第二柔性玻璃层；以及
    设置在所述第一柔性玻璃层和所述第二柔性玻璃层之间的密封层；
    其中，所述密封层中部包括空槽区域；
    其中，所述显示面板设置在所述密封层的所述空槽区域中，所述空槽区域的底面积尺寸大于所述显示面板的尺寸。
  5. 根据权利要求4所述的柔性显示模组，其中，进一步包括：
    设置在所述显示面板和所述第一柔性玻璃层之间的第一硅油层；和/或，
    设置在所述显示面板和所述第二柔性玻璃层之间的第二硅油层。
  6. 根据权利要求4所述的柔性显示模组，其中，所述密封层与所述第一柔性玻璃层和/或第二柔性玻璃层之间通过粘合层贴合，
    所述密封层采用硅橡胶制成。
  7. 根据权利要求4所述的柔性显示模组，其中，所述显示面板包括用于与外部电路结构形成电连接的绑定端；
    其中，所述密封层包括框边部和开口框部，所述开口框部与所述框边部组合成框型，所述框边部压在所述显示面板的所述绑定端表面并露出所述绑定端的绑定引脚。
  8. 根据权利要求7所述的柔性显示模组，其中，所述显示面板包括与所述第一柔性玻璃层和/或所述第二柔性玻璃层相固定的固定区域，其中所述固定区域起始于所述绑定端。
  9. 根据权利要求5所述的柔性显示模组，其中，所述密封层包括至少一个导气槽以及用于密封所述导气槽的密封材料，
    所述密封层包括多个所述导气槽，分别设置在所述柔性显示模组的预设弯折区域和/或所述显示面板与所述空槽区域之间缝隙的延伸方向上。
  10. 根据权利要求1所述的柔性显示模组，其中，所述显示面板包括偏光层、触控层和显示功能层，其中所述触控层包括第三柔性玻璃层和设置于所述第三柔性玻璃层一侧的导电材料层。
  11. 根据权利要求10所述的柔性显示模组，其中，采用涂覆的方式将将导电材料涂覆到所述第三柔性玻璃层的一侧形成所述导电材料层。
  12. 根据权利要求11所述的柔性显示模组，其中，包括：至少一个应变隔断层，其中，所述应变隔断层包括腔室以及包围在所述腔室***的弹性材料层；
    其中，所述显示面板包括至少两个功能层，所述至少一个应变隔断层设置在各个所述功能层之间；和/或，所述应变隔断层设置在所述第一柔性玻璃层和所述显示面板之间；和/或，所述应变隔断层设置在所述显示面板和所述第二柔性玻璃层之间。
  13. 根据权利要求12所述的柔性显示模组，其中，所述腔室内填充有气体，
    所述气体包括以下几种中的一种或多种：空气和惰性气体。
  14. 根据权利要求2所述的柔性显示装置，其中，进一步包括走线区域，设置在所述第一柔性玻璃层的第二表面上，构造为与所述显示面板电连接；
    其中所述显示面板设置于所述第一柔性玻璃层的所述第一表面上，所述第一表面和所述第二表面为相对表面。
  15. 根据权利要求14所述的柔性显示装置，其中，所述第一柔性玻璃层包括过孔，所述走线区域的电路走线通过所述过孔将所述显示面板和外部电路电连接。
  16. 根据权利要求1所述的柔性显示模组，其中，所述显示面板包括：依次叠加的衬底、薄膜晶体管器件层、有机发光二极管器件层、触摸屏和偏振光片。
  17. 根据权利要求16所述的柔性显示模组，其中，所述显示面板进一步包括：
    薄膜封装层，设置在所述有机发光二极管器件层表面，
    所述薄膜封装层采用原子层沉积完成制备；和/或，
    所述薄膜封装层的材料为氧化铝；和/或，
    所述薄膜封装层的厚度为25nm-50nm。
  18. 一种柔性显示模组的制备方法，其中，包括：
    制备或提供中间带有凹槽的第一柔性玻璃层；
    在所述第一柔性玻璃层的凹槽内设置显示面板；
    在所述显示面板上设置所述第二柔性玻璃层；以及
    将所述第二柔性玻璃层的周边与所述第一柔性玻璃层的所述凹槽的侧边进行封装。
  19. 根据权利要求18所述的柔性显示模组的制备方法，其中，采用激光烧结玻璃粉工艺对所述第二柔性玻璃层的周边与所述第一柔性玻璃层的所述凹槽的侧边进行封装。
  20. 根据权利要求18所述的柔性显示模组的制备方法，其中，所述显示面板包括：依次叠加的衬底、薄膜晶体管器件层、有机发光二极管器件层、薄膜封装层、触摸屏和偏振光片；或，
    所述显示面板包括：依次叠加的衬底、薄膜晶体管器件层、有机发光二极管器件层、触摸屏和偏振光片。
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