WO2021022525A1 - 柔性显示模组及其制造方法、电子设备 - Google Patents

柔性显示模组及其制造方法、电子设备 Download PDF

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Publication number
WO2021022525A1
WO2021022525A1 PCT/CN2019/099674 CN2019099674W WO2021022525A1 WO 2021022525 A1 WO2021022525 A1 WO 2021022525A1 CN 2019099674 W CN2019099674 W CN 2019099674W WO 2021022525 A1 WO2021022525 A1 WO 2021022525A1
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WIPO (PCT)
Prior art keywords
ultra
layer
flexible display
thin
thin glass
Prior art date
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Ceased
Application number
PCT/CN2019/099674
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English (en)
French (fr)
Inventor
温胜山
张琨
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Shenzhen Royole Technologies Co Ltd
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Shenzhen Royole Technologies Co Ltd
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Application filed by Shenzhen Royole Technologies Co Ltd filed Critical Shenzhen Royole Technologies Co Ltd
Priority to PCT/CN2019/099674 priority Critical patent/WO2021022525A1/zh
Priority to CN201980090085.8A priority patent/CN113383297A/zh
Publication of WO2021022525A1 publication Critical patent/WO2021022525A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means

Definitions

  • the embodiments of the present application relate to the field of display technology, and in particular, to a flexible display module, a manufacturing method thereof, and electronic equipment.
  • the embodiments of the present application aim to provide a flexible display module, a manufacturing method thereof, and an electronic device, so as to solve the technical problem that the flexible display screen in the prior art cannot satisfy the hardness, the drop resistance characteristic and the good bending characteristic at the same time.
  • a flexible display module includes:
  • An ultra-thin touch structure the ultra-thin touch structure being laminated on a surface of the flexible display panel, the ultra-thin touch structure having bending characteristics and a preset modulus;
  • An ultra-thin polarizing structure the ultra-thin polarizing structure is laminated on the opposite surface of the flexible display panel, and the ultra-thin polarizing structure has a bending characteristic and a preset modulus.
  • the flexible display panel includes a light-emitting layer and a driving layer
  • the driving layer and the light-emitting layer are sequentially laminated on the ultra-thin touch structure, and the ultra-thin polarizing structure is laminated on the light-emitting layer.
  • the ultra-thin touch structure includes a first ultra-thin glass layer and a touch component;
  • the touch control component is laminated on one surface of the first ultra-thin glass layer, and the driving layer and the light-emitting layer are sequentially laminated on the other opposite surface of the first ultra-thin glass layer.
  • the flexible display panel includes a light-emitting layer, a driving layer, and a flexible substrate, and the driving layer and the light-emitting layer are sequentially laminated on a surface of the flexible substrate;
  • the ultra-thin touch structure is laminated on the other opposite surface of the flexible substrate.
  • the ultra-thin touch structure includes a first ultra-thin glass layer and a touch component
  • the touch control component is laminated on the surface of the first ultra-thin glass layer, and the touch control component and the first ultra-thin glass layer are respectively laminated on the surface of the flexible substrate.
  • the touch component includes a touch sensor and a functional film layer
  • the touch sensor and the functional film layer use the first ultra-thin glass layer as a supporting substrate, and the touch sensor and the functional film layer are respectively laminated on the first ultra-thin glass layer.
  • the ultra-thin polarizing structure includes a second ultra-thin glass layer and a polarizing component, one surface of the polarizing component is laminated on the second ultra-thin glass layer, and the opposite surface of the polarizing component is laminated On the surface of the flexible display panel away from the ultra-thin touch structure.
  • the polarizing component includes a polarizing layer and a functional coating
  • the polarizing layer and the functional coating both use the second ultra-thin glass layer as a supporting substrate, and the functional coating and the polarizing layer are respectively laminated on the second ultra-thin glass layer toward the flexible A surface of the display panel;
  • the polarizing layer is laminated on the flexible display panel.
  • the ultra-thin polarizing structure further includes a cover film
  • the cover film is laminated on the other surface of the second ultra-thin glass layer away from the flexible display panel.
  • An electronic device including: the above-mentioned flexible display module, processor, transceiver, memory and bus;
  • the flexible display module is connected to the bus to connect to the processor, the transceiver and the memory through the bus.
  • a method for manufacturing a flexible display module includes: providing a first ultra-thin glass layer and a second ultra-thin glass layer;
  • the polarizing component is laminated on the light-emitting layer.
  • the method further includes:
  • a cover film is formed on the side of the second ultra-thin glass layer away from the polarizing component.
  • a method for manufacturing a flexible display module includes: providing a first ultra-thin glass layer, a second ultra-thin glass layer, and a flexible display panel.
  • the flexible display panel includes a driving layer, a light emitting layer and a flexible substrate.
  • the driving layer Laminated between the light-emitting layer and the flexible substrate;
  • the polarizing component is laminated on the light-emitting layer.
  • the method further includes:
  • a cover film is formed on the side of the second ultra-thin glass layer away from the polarizing component.
  • the ultra-thin touch structure and the ultra-thin polarizing structure with bending characteristics and a preset modulus are respectively laminated on all On the two opposite sides of the flexible display panel, on the basis of the bending characteristics of the flexible display panel, since the ultra-thin touch structure and the ultra-thin polarizing structure both have preset modulus and bending characteristics,
  • the flexible display module composed of the ultra-thin touch structure, the flexible display panel and the ultra-thin polarizing structure has both bendability and preset hardness, thereby improving the flatness and recovery of the flexible screen At the same time, the phenomenon of wrinkles on the surface of the flexible display module during the bending process is avoided.
  • FIG. 1 is a schematic structural diagram of a flexible display module provided by one embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of a flexible display module provided by another embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of the ultra-thin touch structure of the flexible display module shown in FIG. 1;
  • FIG. 4 is a schematic structural diagram of the ultra-thin polarizing structure of the flexible display module shown in FIG. 1;
  • FIG. 5 is a schematic structural diagram of a flexible display module provided by another embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of the ultra-thin polarizing structure of the flexible display module shown in FIG. 5;
  • FIG. 7 is a schematic structural diagram of a flexible display module provided by still another embodiment of the present application.
  • FIG. 8 is a flowchart of a manufacturing method of a flexible display module provided by one of the embodiments of the present application.
  • FIG. 9 is a flowchart of a method for manufacturing a flexible display module according to another embodiment of the present application.
  • a flexible display module provided by an embodiment of the present application includes a flexible base and a light-emitting device layer on the flexible substrate.
  • the flexible substrate may include a plastic material, and the plastic material may be selected from the group consisting of the following materials Organic materials: polyethersulfone (PES), polyacrylate (PAR), polyetherimide (PEI), polyethylene naphthalate (PEN), polyethylene terephthalate ( PET), polyphenylene sulfide (PPS), polyarylate, polyimide, polycarbonate (PC), cellulose triacetate (TAC), and cellulose acetate propionate (CAP), etc.
  • PES polyethersulfone
  • PAR polyacrylate
  • PEI polyetherimide
  • PEN polyethylene naphthalate
  • PET polyethylene terephthalate
  • PPS polyphenylene sulfide
  • PC polycarbonate
  • TAC cellulose triacetate
  • CAP cellulose acetate propionate
  • the luminescence The device layer can include, but is not limited to, organic light emitting diodes (OLED); a thin film layer, located on the light emitting device layer, the thin film layer is usually a composite of polyethylene terephthalate (PET) and a glue layer
  • OLED organic light emitting diodes
  • PET polyethylene terephthalate
  • the thin film layer can compensate for the water and oxygen barrier of the light emitting device layer, and the thin film layer can also be understood as a protective layer of the light emitting device layer, and the thickness of the thin film layer is about 80 ⁇ m.
  • the flexible display module further includes a polarizer (POL) attached to the film layer.
  • the polarizer usually includes a protective film layer, a 1/4 ⁇ wave plate and a polarizing functional plate layer.
  • the material of the protective film layer may be pressure sensitive adhesive (PSA), which is beneficial for the polarizer to be directly attached to the film layer; the 1/4 ⁇ wave plate is attached above the protective film layer;
  • the polarizing functional sheet layer usually includes the middlemost PVA layer (polyvinyl alcohol layer) and the upper and lower two protective layers of TAC layer (triacetyl cellulose layer), and bonding the polarizing functional sheet layer and the 1/
  • the adhesive layer of the 4 ⁇ wave plate, the adhesive layer may also be but not limited to a pressure-sensitive adhesive layer.
  • the flexible display module further includes a touch function layer (TP), a cover plate (CG), and a first adhesive layer for bonding the polarizer and the touch function layer and bonding the The touch function layer and the second adhesive layer of the cover plate.
  • Both the first adhesive layer and the second adhesive layer may be an optically transparent adhesive layer (OCA) with a thickness of about ⁇ m
  • the touch function layer has a thickness of about 50 ⁇ m
  • the cover plate is a hardened PI coating with a thickness of about 30 ⁇ m.
  • the requirements of hardness and drop resistance require that the material to be prepared has strong strength, but the film material cannot be strengthened and because of its softness (low modulus), the flexible display module prepared cannot have the characteristics of drop resistance and good hardness. .
  • the film material of the flexible display module especially the plastic material, has a room temperature modulus of only tens to hundreds of kpa, which has good bending properties but poor recovery (it takes a certain time to recover), and the smaller the bending radius, the better the recovery. Poor, eventually leading to technical problems such as poor flatness of the flexible display module and wrinkles on the surface.
  • the inventor’s research also found that, because the polarizer, touch function layer and cover plate in the above flexible display module are all laminated by means of adhesive layer attachment, it involves multiple layers of adhesive layer.
  • the manufacturing method of the flexible display module is complicated.
  • the flexible display module has a large number of film layers, and the thickness of the flexible display module is relatively thick, and the total thickness is about 500 ⁇ m.
  • the flexible display module is bent During the process, it is easy to separate or split the film, which leads to failure of the flexible display module.
  • a flexible display module 100 provided by an embodiment of the present application includes a flexible display panel 20, an ultra-thin touch structure 40 and an ultra-thin polarizing structure 60.
  • the flexible display panel 20 may be a liquid crystal display panel (TFT-LCD) or an OLED (Organic Light-Emitting Diode, organic light emitting diode) display panel.
  • the flexible display panel 20 is used to emit light.
  • the backlight can promote the image formation of the liquid crystal pixel unit and cause the liquid crystal display panel to emit light, wherein the emitted light starts with the backlight as a light source.
  • the starting point passes through the gap between each liquid crystal pixel unit and emits to the external environment of the liquid crystal display panel.
  • the flexible display panel 20 is an OLED display panel
  • a light emitting layer composed of several OLED light emitting units in the OLED display panel generates the emitted light, wherein the emitted light starts with the light emitting layer as the light source and passes through each OLED pixel unit. The gap between the two is emitted to the external environment of the display panel 20.
  • the ultra-thin touch structure 40 is used to sense the user's touch operation. For example, when a user touches the flexible display module 100, due to the electric field of the human body, a coupling capacitor is formed between the user's touch position and the working surface of the ultra-thin touch structure 40. Because the working surface is connected to a high-frequency signal, the touch position A very small current is absorbed, and the currents flow out from the electrodes on the four corners of the ultra-thin touch structure 40. Through precise calculation of the ratio of the four currents, the position of the user's touch is obtained, and then the user responds Related touch to operate.
  • the ultra-thin touch structure 40 is laminated on a surface of the flexible display panel 20; the ultra-thin touch structure 40 It has bendable characteristics and a preset modulus.
  • the flexible display module 100 cannot have the characteristics of bendability and high recovery at the same time, because if the preset modulus is too large, the ultra-thin touch The rigidity of the control structure 40 is too large, resulting in poor bending characteristics of the flexible display module 100; and because if the preset modulus is too small, the recovery of the flexible display module 100 will be poor (it takes a certain time Recovery), which in turn leads to poor flatness of the flexible display module 100 and wrinkles on the surface.
  • the range of the preset modulus of the ultra-thin touch structure 40 is set to 20Gpa-50Gpa.
  • the ultra-thin polarizing structure 60 is used to eliminate the influence of ambient light on the flexible display module 100 and improve its contrast.
  • the ultra-thin polarizing structure 60 is laminated on the opposite surface of the flexible display panel 20; the ultra-thin polarizing structure 60 has a flexible Bending characteristics, while having preset modulus.
  • the range of the preset modulus of the ultra-thin polarizing structure 60 is set to be 20Gpa-50Gpa.
  • the ultra-thin touch structure 40 and the ultra-thin polarizing structure 60 which have bending characteristics and a preset modulus, are laminated on two opposite surfaces of the flexible display panel 20, respectively.
  • the ultra-thin touch structure 40 and the ultra-thin polarizing structure 60 both have preset modulus and bending characteristics, the ultra-thin touch structure 40.
  • the flexible display module 100 composed of the flexible display panel 20 and the ultra-thin polarizing structure 60 has both bendability and preset hardness, thereby improving the flatness and recovery of the flexible display module 100, while avoiding In the bending process, wrinkles appear on the surface of the flexible display module 100.
  • the traditional flexible display module is optimized
  • the manufacturing method of 100 reduces the number and thickness of the film layers of the traditional flexible display module 100, thereby avoiding the phenomenon of film layer separation or splitting during the bending process of the flexible display module 100, which improves The service life of the flexible display module 100.
  • the ultra-thin touch structure 40 includes a first ultra A thin glass layer 42 and a touch control component 44, the first ultra-thin glass layer 42 is laminated on the flexible display panel 20, and the touch control component 44 is laminated on the first ultra-thin glass layer 42.
  • the first ultra-thin glass layer 42 has ultra-thin characteristics, and the first ultra-thin glass layer 42 may be alkali-containing ultra-thin glass and alkali-free ultra-thin glass.
  • the alkali-containing ultra-thin glass may be sodium Lime silica glass or aluminosilicate glass.
  • the alkali-free ultra-thin glass may be borate glass.
  • the first ultra-thin glass layer 42 In order to make the first ultra-thin glass layer 42 have ultra-thin characteristics, the first ultra-thin glass layer 42 needs to be thinned (etched) and strengthened (ion exchange) to meet the requirements of ultra-thin characteristics.
  • the thickness of the ultra-thin glass layer 42 may range from 10 ⁇ m to 100 ⁇ m. Preferably, the thickness of the first ultra-thin glass layer 42 ranges from 50 ⁇ m to 75 ⁇ m.
  • the surface hardness of the first ultra-thin glass layer 42 ranges from 3H to 9H. Preferably, the surface hardness of the first ultra-thin glass layer 42 ranges from 4H to 7H.
  • the Young's modulus (E) ranges from 10 GPa to 100 GPa. Preferably, the Young's modulus (E) of the first ultra-thin glass layer 42 ranges from 50 Gpa to 80 Gpa.
  • the raw material of the aluminosilicate ultra-thin glass includes the following components according to weight percentages: 60 parts by weight of silica, 10 parts by weight of alumina, 11 parts by weight of sodium oxide, and 3 parts by weight of magnesium oxide;
  • the preparation method of the aluminosilicate ultra-thin glass includes the following steps:
  • Raw material melting The raw material of the above-mentioned aluminosilicate ultra-thin glass is directly added to the melting furnace at about 1300 degrees Celsius to form molten glass;
  • Clarification of molten glass increase the temperature to 1400-1500 degrees Celsius to form molten glass and discharge visible bubbles and dissolved gases in it;
  • the glass is kept at high temperature (for example: 1200-1300 degrees Celsius) for a long time to eliminate the stripes in the molten glass to form a homogenized molten glass;
  • the aluminosilicate ultra-thin glass produced in step 4) is processed by an ion exchange method.
  • the specific processing steps are as follows: the glass is ultrasonically cleaned, brushed, and then the aluminosilicate ultra-thin glass is thinned ( Etching) treatment, then pre-heat treatment at 200-300 degrees Celsius, and then immersed in 450 degrees Celsius molten KNO 3 for ion exchange treatment. Finally, the aluminosilicate ultra-thin glass is formed.
  • the thickness of the first ultra-thin glass layer 42 may only range from 50 ⁇ m to 75 ⁇ m, so that the first ultra-thin glass layer
  • the thickness of the ultra-thin touch structure 40 composed of the layer 42 and the touch component 44 is small, thereby reducing the thickness of the flexible display module 100, making it more in line with the user's aesthetics, and improving the user experience.
  • the first ultra-thin glass layer 42 has bendability, and at the same time has higher hardness and/or rigidity, so that the ultra-thin touch control composed of the first ultra-thin glass layer 42 and the touch control component 44
  • the structure 40 has both bendability and higher hardness and/or rigidity, thereby improving the flatness and recovery of the flexible display module 100, and avoiding wrinkles on the surface of the flexible display module 100 during the bending process. The phenomenon.
  • the touch component 44 includes a touch sensor 442 and a functional film layer 444.
  • the touch sensor 442 and the functional film layer 444 use the first ultra-thin glass layer 42 as a supporting substrate, and are respectively stacked on the The first ultra-thin glass layer 42 is on the surface away from the flexible display panel 20.
  • the touch sensor 442 is used to sense and feedback the touch operation of the user or object.
  • the touch sensor 442 is an ultra-thin flexible double-layer touch screen sensor, and includes a first touch function arranged from top to bottom. Layer, a first photocurable adhesive layer, a flexible film, a second photocurable adhesive layer, a second touch function layer, the first touch function layer is embedded in the first photocurable adhesive layer, and the second touch
  • the functional layer is embedded in the second light-curing adhesive layer, the first light-curing adhesive layer, the second light-curing adhesive layer and the flexible film are integrated, the first touch function layer and the second touch function layer respectively include nano Touch graphic text formed by conductive network and silver paste etching.
  • the flexible substrate of the flexible film is one of PET, PI, and COP optical grade transparent substrates with a light transmittance of ⁇ 90%.
  • the square resistance of the nano conductive network is 50-100 ⁇ .
  • the square resistance of the nano conductive network is preferably 50 ⁇ .
  • the thickness of the flexible film is 5-50um.
  • the thickness of the flexible film is preferably 23um.
  • the thickness of the nano conductive network is 20-200 nm.
  • the thickness of the nano conductive network is preferably 200 nm.
  • the thickness of the silver paste is 3-5um.
  • the thickness of the silver paste is preferably 4um.
  • the thickness of the photocurable adhesive layer is 2-20um.
  • the thickness of the photocurable adhesive layer is preferably 10um.
  • the ultra-thin flexible double-layer touch screen sensor has a visible light transmittance of 85%-95%, a thickness of 10-100um, preferably 50um, a bending radius of 1-6mm, preferably 2mm, and the number of bending is more than 100,000 times .
  • the nano conductive network is embedded in the first light-curing adhesive layer and the second light-curing adhesive layer, and plays a key role in the stability and reliability of the conductive network.
  • the first light-curing adhesive layer and the second light-curing adhesive layer can be very thin, which can improve the bending and folding performance of the touch component 44.
  • the touch sensor 442 does not need to be bonded with optical glue, which reduces the number of bonding layers, simplifies the lengthy bonding process of the optical glue, and reduces the manufacturing cost. At the same time, since there is no optical adhesive layer, the thickness of the entire double-sided touch sensor 442 can be minimized, which improves the bending and folding performance of the touch sensor 442.
  • the functional film layer 444 includes one or more of a transparent support layer, a fingerprint touch layer, and a supporting substrate.
  • the transparent support layer, the fingerprint touch layer and the carrier substrate are sequentially laminated on the surface of the touch sensor 442 away from the flexible display panel 20.
  • the transparent support layer has preset hardness and rigidity.
  • the transparent support layer is used to support the flexible display panel 20.
  • the transparent support layer has a preset hardness and rigidity.
  • the transparent supporting layer can offset the pressing force of the pressing object on the flexible display panel 20 to a certain extent, support the fingerprint collection area, and eliminate the fingerprint collection.
  • the deformation of the region has an adverse effect on the quality of fingerprint imaging and improves the quality of fingerprint imaging.
  • the transparent supporting layer is formed of transparent glass, acrylic organic film (PMMA) and other light-transmitting materials, and the transparent supporting portion can be penetrated by visible light, infrared light, or ultraviolet light.
  • PMMA acrylic organic film
  • the fingerprint touch layer is used for fingerprint identification operations, and the fingerprint touch layer includes a circuit substrate, a bracket, a lens, a fingerprint chip, a filter, and a micro lens.
  • the bracket is arranged on the circuit substrate; the lens is arranged on the bracket; the fingerprint chip is arranged on the circuit substrate and is electrically connected to the circuit substrate; the filter is arranged on On the fingerprint chip; the micro-lens is arranged on the filter. Since the micro lens is attached to the surface of the filter, the filter can be designed to be smaller, reducing the cost.
  • the fingerprint touch layer may have other structures or any model, as long as the fingerprint touch layer can perform fingerprint recognition operations.
  • the carrying substrate is used as a substrate for carrying the flexible display panel 20 and the ultra-thin polarizing structure 60, the carrying substrate is a flexible material, and the material of the carrying substrate can be polyimide (PI), polycarbonate (PC) ), polyethylene glycol terephthalate (PET), polyethersulfone (PES), polyethylene film (PEN), fiber reinforced plastic (FRP) and other resins.
  • PI polyimide
  • PC polycarbonate
  • PET polyethylene glycol terephthalate
  • PES polyethersulfone
  • PEN polyethylene film
  • FRP fiber reinforced plastic
  • the flexible display panel 20 includes a light emitting layer 22 and a driving layer 24, the driving layer 24 is used to drive the light emitting layer 22, the driving layer 24 is laminated on the ultra-thin touch structure 40, and the light emitting layer 22 It is laminated on the driving layer 24, and the ultra-thin polarizing structure 60 is laminated on the light emitting layer 22.
  • the driving layer 24 and the light-emitting layer 22 are both made of an ultra-thin touch structure 40
  • the first ultra-thin glass layer 42 is a substrate, the driving layer 24 and the light-emitting layer 22 are directly formed on a surface of the first ultra-thin glass layer 42 in sequence, and the touch control element 44 is directly formed
  • the first ultra-thin glass layer 42 can be used as a carrier substrate for the flexible display panel 20 and the touch component 44 at the same time, reducing the need for traditional flexible display modules.
  • the number and thickness of the film layer thereby avoiding the phenomenon of film layer separation or splitting during the bending process of the flexible display module 100; at the same time, the thickness of the flexible display module 100 is reduced, which improves Improve the user experience.
  • the light-emitting layer 22 serves as a source of emitted light for generating the emitted light.
  • the light-emitting layer 22 includes an organic functional layer, a cathode and an anode. Wherein, the organic functional layer is laminated and disposed between the cathode and the anode to generate the emitted light. Wherein, the organic functional layer is prepared by doping a certain proportion of organic light-emitting material with a host material.
  • the organic light-emitting materials can be selected from organic small molecule materials or organic polymer materials to achieve electroluminescence.
  • the driving layer 24 is disposed on a side surface of the light emitting layer 22 for driving the light emitting layer 22.
  • the structure of the driving layer 24 and how to scan and drive the light-emitting layer 22 to generate the emitted light are existing technical means, and will not be repeated here.
  • the ultra-thin polarizing structure 60 includes a second ultra-thin glass Layer 62 and a polarizing component 64, one side of the polarizing component 64 is laminated on the second ultra-thin glass layer 62, and the opposite side of the polarizing component 64 is laminated on the flexible display panel 20 away from the ultra-thin touch Control structure 40 on the surface.
  • the functional characteristics, material, thickness, surface hardness, Young's modulus, and preparation process of the second ultra-thin glass layer 62 and the first ultra-thin glass layer 42 are the same, and will not be repeated here.
  • the thickness of the ultra-thin polarizing structure 60 composed of the second ultra-thin glass layer 62 and the polarizing component 64 is small. , The thickness of the flexible display module 100 is further reduced, making it more in line with the user's aesthetics, and improving the user experience.
  • the second ultra-thin glass layer 62 has higher hardness and/or rigidity on the basis of bendability, so that the second ultra-thin glass layer 62 and the polarizing component 64 are composed of
  • the ultra-thin polarizing structure 60 has both bendability and higher hardness and/or rigidity, thereby improving the flatness and recovery of the flexible display module 100, and at the same time avoiding the bending process of the flexible display module 100 Wrinkles appear on the surface.
  • the polarizing component 64 includes a polarizing layer 642 and a functional coating 644.
  • the functional coating 644 and the polarizing layer 642 both use the second ultra-thin glass layer 62 as a supporting substrate, and are respectively laminated on the second ultra-thin glass layer 62 in sequence.
  • the two ultra-thin glass layers 62 face the surface of the flexible display panel 20, and the polarizing layer 642 is also laminated on the functional coating 644.
  • the polarizing layer 642 is a circular polarizing layer, which is used to convert the emitted light generated by the light-emitting layer 22 from unpolarized light to polarized light, and at the same time, is used to prevent the reflected light of the external light from passing through.
  • the circular polarizer includes a linear polarizer and a quarter wave plate, and the quarter wave plate is disposed between the linear polarizer and the flexible display panel 20, wherein, The linear polarizer is close to the incident direction of the external light, that is, the quarter wave plate is the light exit side of the circular polarizer, and the linear polarizer is the light entrance side of the circular polarizer.
  • the functional coating 644 includes one or more of an ink layer, a hardened layer, an anti-fingerprint layer, an anti-glare layer, and an anti-reflection layer.
  • One of the ink layer, the hardened layer, the anti-fingerprint layer, the anti-glare layer, and the anti-reflection layer is laminated or coated on the surface of the second ultra-thin glass layer 62 in sequence.
  • the functional coating 644 includes multiple coatings, the stacking sequence of the multiple coatings can be set according to actual needs, which is not limited here. Since the materials used for the above-mentioned different types of coatings are different, the corresponding uses are also different. In actual applications, in order to achieve different functions, one or more of the coatings can be selected to be applied to the On the surface of the second ultra-thin glass layer 62.
  • the ink layer is used to provide the flexible display module 100 with a desired appearance color, and the appearance color of the ink layer may be red, orange, yellow, green, cyan, blue, purple, pink, White etc.
  • the ink layer may be formed by a screen printing (screen printing) process.
  • the material of the ink layer is black ink prepared by epoxy resin.
  • the hardened layer is used to protect the ultra-thin polarizing structure 60 and improve the scratch resistance and wear resistance of the flexible display module 100.
  • the hardened layer may be made of metal nitride or pure metal. Or metal carbon or any combination of metal, nitride and carbon, and it can also be a so-called DLC-layer (diamond-like carbon layer).
  • the anti-fingerprint layer is used to improve the anti-fouling performance of the flexible display module 100, and the anti-fingerprint layer can reduce the adhesion of fingerprints, oil stains, dust, water, etc., to the flexible display module 100.
  • the anti-fingerprint layer may be made of organic fluoride.
  • the anti-glare layer is used to control light scattering/light reflection to suppress the deterioration of the visibility of the image display device
  • the material of the anti-glare layer may be a second (meth)acrylate-based crosslinked polymer And at least two light-transmitting fine particles of submicron (sub- ⁇ m) order dispersed on the second adhesive.
  • the anti-reflection layer is used to use light scattering or optical interference to reduce image reflection and light reflection
  • the material of the anti-reflection layer may be polyvinyl alcohol (PVA), but not This is a limit, and it can also be replaced by adding pigments to the liquid crystal to further reduce the thickness.
  • PVA polyvinyl alcohol
  • the thickness of the anti-reflection layer ranges from 3um to 50um, but is not limited to this.
  • the functional coating 644 may also be a transmission enhancing layer, a light shielding layer, a protective layer, and so on. One or more of them can be arbitrarily selected to be laminated and coated on the surface of the second ultra-thin glass layer 62 according to the required function.
  • the flexible display module 100a provided by another embodiment of the present application is basically the same as the flexible display module 100 shown in FIG. 1, except for the ultra-thin polarizing structure 60a of the flexible display module 100a. It also includes a cover film 66 laminated on a surface of the second ultra-thin glass layer 62 away from the flexible display panel 20, and the second ultra-thin glass layer 62 and the cover film 66 are formed together The flexible cover of the flexible display module 100a.
  • the second ultra-thin glass layer 62 and the cover film 66 both constitute the flexible cover plate of the flexible display module 100a, and the second ultra-thin glass layer 62 also serves as the
  • the supporting substrate of the polarizing component 64 is such that the functional coating 644 and the polarizing layer 642 of the polarizing component 64 are respectively laminated on the surface of the second ultra-thin glass layer 62 in sequence. Therefore, through the arrangement of the second ultra-thin glass layer 62, the manufacturing method of the traditional flexible display module is optimized, and the number and thickness of the film layers of the traditional flexible display module 100 are reduced, thereby avoiding the flexible display module. During the bending process of 100a, the film layer is likely to separate or split, which improves the service life of the flexible display module 100a.
  • the cover film 66 is used to increase the hardness of the flexible cover. Since the cover film 66 is formed on the second ultra-thin glass layer 62 and faces the user, the cover film 66 has the characteristics of scratch resistance and abrasion resistance while having a preset hardness. Further, when the material of the cover film 66 is an organic material, the cover film 66 is provided with bending characteristics, which can further improve the bendability of the flexible cover plate.
  • the flexible cover due to the ultra-thin characteristics of the second ultra-thin glass layer 62, the flexible cover has good bending characteristics, and the cover film 66 does not affect the bending characteristics of the flexible cover.
  • the rigidity of the flexible cover plate is improved, so that the flexible cover plate composed of the second ultra-thin glass layer 62 and the cover film 66 has good bending characteristics, and also has the characteristics of hardness, drop resistance, etc.
  • the requirements for the flexible cover in the flexible display module 100a are met.
  • the flexible cover composed of the second ultra-thin glass layer 62 and the cover film 66
  • the thickness of the flexible cover is in the range of 10 ⁇ m to 200 ⁇ m.
  • the thickness of the flexible cover plate is in the range of 40 ⁇ m to 100 ⁇ m.
  • the material of the cover film 66 can be PI (polyimide, polyimide), CPI (colorless, colorless and transparent polyimide), PET (polyethylene terephthalate, polyethylene terephthalate), PMMA (Polyimide) Methyl Methacrylate methacrylic Acid, PC (Polycarbonate, polycarbonate).
  • PI polyimide, polyimide
  • CPI colorless, colorless and transparent polyimide
  • PET polyethylene terephthalate, polyethylene terephthalate
  • PMMA Polyimide
  • PC Polycarbonate, polycarbonate
  • cover film 66 In order to form the cover film 66 on the second ultra-thin glass layer 62, and to make the cover film 66 have a certain hardness, thereby increasing the hardness of the flexible cover plate, roll-to-roll such as coating or printing can be used.
  • the roll to roll process forms the cover film 66 on the second ultra-thin glass layer 62.
  • the surface hardness of the covering film 66 ranges from 1H to 5H.
  • the surface hardness of the covering film 66 ranges from 3H to 4H.
  • the Young's modulus (E) of the cover film 66 is in the range of 2Gpa ⁇ 10Gpa, preferably The Young's modulus (E) of the cover film 66 ranges from 5 to 7 Gpa, the thickness of the cover film 66 ranges from 10 to 100 ⁇ m, and the thickness of the cover film 66 ranges from 20 to 60 ⁇ m.
  • the flexible display module 100b provided by another embodiment of the present application is basically the same as the flexible display module 100 shown in FIG. 2, except that the flexible display panel 20a in the flexible display module 100b is also A flexible substrate 26 is included.
  • the driving layer 24 and the light-emitting layer 22 use the flexible substrate 26 as a substrate, and the driving layer 24 and the light-emitting layer 22 are directly formed on the flexible substrate 26 in sequence.
  • the ultra-thin touch structure 40 and the ultra-thin polarizing structure 60 are respectively adhered to two opposite sides of the flexible display panel 20a. Specifically, the touch component 44 and the first ultra-thin glass layer 42 are respectively adhered It is laminated on the surface of the flexible substrate 26.
  • the touch control component 44 is laminated on the surface of the flexible substrate 26, or the first ultra-thin glass layer 42 is laminated on the surface of the flexible substrate 26; the flexible substrate 26 is laminated on the surface of the flexible substrate 26.
  • the first ultra-thin glass layer 42, the polarizing layer 642 is laminated on the light emitting layer 22.
  • the flexible substrate 26 is added between the driving layer 24 of the flexible display panel 20a and the first ultra-thin glass layer 42 of the ultra-thin touch structure 40, the driving layer 24 and the touch sensor 442 are added. The distance between them can reduce the influence of the electrical properties of the driving layer 24 on the touch sensor 442.
  • the material of the flexible substrate 26 can be polyimide (PI), polycarbonate (PC), polyethylene glycol terephthalate (PET), polyethersulfone (PES), polyethylene film (PEN), Fiber reinforced plastic (FRP) and other resins.
  • PI polyimide
  • PC polycarbonate
  • PET polyethylene glycol terephthalate
  • PES polyethersulfone
  • PEN polyethylene film
  • FRP Fiber reinforced plastic
  • adheresion in any of the above embodiments refers to adhesive attachment through optical glue or other adhesives with adhesiveness.
  • the optical glue is OCA glue (Optically Clear Adhesive), which has the characteristics of colorless and transparent, light transmittance above 90%, good bonding strength, can be cured at room temperature or medium temperature, and has the characteristics of small curing shrinkage, etc. .
  • OCA glue Optically Clear Adhesive
  • the "formation" in any of the foregoing embodiments refers to the deposition by physical or chemical means such as spin coating, printing, inkjet, or sputtering.
  • FIG. 8 One of the embodiments of the present application provides a method for manufacturing the flexible display module 100. It should be noted that the above explanation of the embodiments of the flexible display module 100 is also applicable to the flexible display of this embodiment. In order to avoid redundancy, the preparation method of the module 100 will not be detailed here. It should be noted that in the following embodiments, the following steps do not necessarily have a certain sequence. Those of ordinary skill in the art can understand from the description of the embodiments of the present application that in different embodiments, the following The steps may have a different execution order, that is, they may be executed in parallel, or they may be executed interchangeably. In different embodiments, some of the following steps may also be omitted or replaced.
  • the manufacturing method of the flexible display module 100 includes:
  • Step S81 providing a first ultra-thin glass layer and a second ultra-thin glass layer.
  • the first ultra-thin glass layer and the second ultra-thin glass layer both have ultra-thin characteristics
  • the first ultra-thin glass layer and the second ultra-thin glass layer may be alkali-containing ultra-thin glass
  • the alkali-containing ultra-thin glass can be soda lime silicate glass or aluminosilicate glass.
  • the alkali-free ultra-thin glass may be borate glass.
  • Both the first ultra-thin glass layer and the second ultra-thin glass layer have bendability and higher hardness and/or rigidity.
  • Step S82 sequentially forming a driving layer and a light-emitting layer on a surface of the first ultra-thin glass layer.
  • plasma enhanced chemical vapor deposition Pulsma Enhanced Chemical Vapor Deposition: PECVD
  • low pressure chemical vapor deposition Low Pressure Chemical Vapor Deposition: LPCVD
  • atmospheric pressure chemical vapor deposition ASmospheric Pressure Chemical Vapor Deposition: Abbreviated as APCVD
  • APCVD atmospheric pressure chemical vapor deposition
  • ElecSron CycloSron Resonance Chemical Vapor Deposition: ECR-CVD for short sputtering and spin coating methods to form the driving layer 24 and light emitting on a surface of the first ultra-thin glass layer 42
  • the layer 22, the driving layer 24 and the light-emitting layer 22 constitute the flexible display panel 20.
  • Step S83 forming a touch control component on the other opposite surface of the first ultra-thin glass layer.
  • the touch component 44 includes a touch sensor 442 and a functional film layer 444.
  • the touch sensor 442 and the functional film layer 444 are respectively formed on the first ultra-thin glass layer 42 away from the flexible On the surface of the display panel 20, the touch component 44 and the first ultra-thin glass layer 42 constitute the ultra-thin touch structure 40.
  • Step S84 forming a polarizing component on one surface of the second ultra-thin glass layer.
  • the polarizing component 64 includes a polarizing layer 642 and a functional coating 644, and the functional coating 644 and the polarizing layer 642 are respectively formed on the surface of the second ultra-thin glass layer 62 in sequence. , The polarizing component 64 and the second ultra-thin glass layer 62 form an ultra-thin polarizing structure 60.
  • the method further includes:
  • a cover film is formed on the side of the second ultra-thin glass layer away from the polarizing component.
  • a cover film is formed on the side of the second ultra-thin glass layer 42 away from the polarizing component by sputtering, spin coating or spraying, and the driving layer 24 and the light-emitting layer 22 constitute the flexible display panel 20 .
  • the cover film 66 and the second ultra-thin glass 42 constitute a flexible cover plate of the flexible display module 100a.
  • the material of the cover film 66 can be PI (polyimide, polyimide), CPI (colorless, colorless and transparent polyimide), PET (polyethylene terephthalate, polyethylene terephthalate), PMMA (Poly Methyl Methacrylate methacrylic Acid), PC (Polycarbonate, polycarbonate).
  • Step S85 Laminating the polarizing component on the light-emitting layer.
  • the polarizing component 64 of the ultra-thin polarizing structure 60 is attached to the side of the flexible display panel 20 away from the ultra-thin touch structure 40 through optical glue, that is, attached to the light-emitting layer 22 .
  • FIG. 9 another embodiment of the present application provides a method for manufacturing a flexible display module 100b.
  • the above explanation of the embodiment of the flexible display module 100 is also applicable to the flexible display of this embodiment.
  • the preparation method of the module 100b will not be detailed here.
  • the following steps do not necessarily have a certain sequence. Those of ordinary skill in the art can understand from the description of the embodiments of the present application that in different embodiments, the following The steps may have a different execution order, that is, they may be executed in parallel, or they may be executed interchangeably. In different embodiments, some of the following steps may also be omitted or replaced.
  • the manufacturing method of the flexible display module 100b includes:
  • Step S91 Provide a first ultra-thin glass layer, a second ultra-thin glass layer, and a flexible display panel.
  • the flexible display panel includes a driving layer 24, a light-emitting layer 22 and a flexible substrate 26.
  • the driving layer 24 is laminated on the light-emitting Between layer 22 and flexible substrate 26.
  • Step S92 forming a touch control element on a surface of the first ultra-thin glass layer.
  • the touch component 44 includes a touch sensor 442 and a functional film layer 444, and the touch sensor 442 and the functional film layer 444 are respectively formed on the surface of the first ultra-thin glass layer 42.
  • the first ultra-thin glass layer 42 and the touch component 44 form an ultra-thin touch structure.
  • Step S93 Laminating the first ultra-thin glass layer or the touch control component on the flexible substrate.
  • the first ultra-thin glass layer 42 or the touch control component 44 is attached to the flexible substrate 26 through optical glue.
  • Step S94 forming a polarizing component on one surface of the second ultra-thin glass layer.
  • the polarizing component 64 includes a polarizing layer 642 and a functional coating 644, and the polarizing layer 642 and the functional coating 644 are respectively formed on the surface of the second ultra-thin glass layer 62.
  • the second ultra-thin glass layer 62 and the polarizing component 64 together form an ultra-thin polarizing structure 60.
  • the method further includes:
  • a cover film is formed on the side of the second ultra-thin glass layer away from the polarizing component.
  • a cover film is formed on the side of the second ultra-thin glass layer 42 away from the polarizing component by sputtering, spin coating, or spraying.
  • the cover film 66 and the second ultra-thin glass 42 form the flexible The flexible cover of the display module 100b.
  • Step S95 stacking the polarizing component on the light emitting layer.
  • the polarizing layer 642 in the polarizing component 64 is attached to the surface of the light-emitting layer 20 through optical glue.
  • the electronic device includes but is not limited to a mobile phone, a notebook, a tablet computer, a POS machine, a vehicle-mounted computer, a camera, and the like.
  • the electronic device includes the flexible display module 100, 100a or 100b in any of the above embodiments, a processor, a transceiver, a memory, and a bus.
  • the flexible display module 100, 100a or 100b is connected to a bus, so as to be connected to other parts such as a processor through the bus.
  • the display area of the flexible display module 100, 100a, or 100b can provide an input interface for the operator, so that the operator can operate through the input interface.
  • the transceiver is used to send and receive data with external devices.
  • the number of processors can be one or more.
  • the processor, the memory, and the transceiver may be connected by a bus or other methods.
  • the program code is stored in the memory.
  • the processor is used to call the program code stored in the memory to perform various operations.
  • the processor here may be one processing element or a collective term for multiple processing elements.
  • the processing element may be a central processing unit (CPU), a specific integrated circuit (Application Specific Integrated Circuit, ASIC), or one or more integrated circuits configured to implement the embodiments of the present application
  • CPU central processing unit
  • ASIC Application Specific Integrated Circuit
  • microprocessors digital signal processor, DSP
  • field programmable gate arrays Field Programmable Gate Array, FPGA
  • the memory may be a storage device, or a collective name of multiple storage elements, and is used to store executable program code or parameters, data, etc., required for the operation of the application program running device.
  • the memory may include random access memory (RAM) or non-volatile memory (non-volatile memory), such as magnetic disk memory, flash memory (Flash), and so on.
  • the bus may be an Industry Standard Architecture (ISA) bus, Peripheral Component (PCI) bus, or Extended Industry Standard Architecture (EISA) bus, etc.
  • ISA Industry Standard Architecture
  • PCI Peripheral Component
  • EISA Extended Industry Standard Architecture
  • the bus can be divided into address bus, data bus, control bus, etc.
  • the electronic device of the present application provides a flexible display module 100, 100a or 100b, by combining the ultra-thin touch structure 40 with bending characteristics and a preset modulus and the ultra-thin touch structure 40 Thin polarizing structures 60 or 60a are laminated on opposite sides of the flexible display panel 20 or 20a, respectively.
  • the ultra-thin polarizing structure 60 or 60a has a preset modulus and bending characteristics, so that the ultra-thin touch structure 40, the flexible display panel 20 or 20a and the ultra-thin polarizing structure 60 or 60a are jointly composed
  • the flexible display module 100, 100a or 100b has both bendability and preset hardness, thereby improving the flatness and recovery of the flexible screen, and avoiding the bending process, the flexible display module 100, 100a Or wrinkles appear on the surface of 100b.

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Abstract

一种柔性显示模组及其制造方法、电子设备，其中柔性显示模组包括柔性显示面板(20或20a)、超薄触控结构(40)及超薄偏光结构(60或60a)，超薄触控结构(40)层叠于柔性显示面板(20或20a)的一表面，超薄触控结构(40)具有弯折特性和预设模量；超薄偏光结构(60或60a)层叠于柔性显示面板(20或20a)的相对的另一表面，超薄偏光结构(60或60a)具有弯折特性和预设模量。通过将具有弯折特性和预设模量的超薄触控结构(40)和超薄偏光结构(60或60a)分别层叠于柔性显示面板(20或20a)的相对两面，从而柔性显示模组既具有可弯折性，同时具有预设硬度。

Description

柔性显示模组及其制造方法、电子设备 技术领域
本申请实施例涉及显示技术领域，特别是涉及一种柔性显示模组及其制造方法、电子设备。
背景技术
随着科技的进步与社会的发展，柔性显示屏逐渐走入了消费者的视野，柔性显示屏在方便消费者生活的同时也为消费者带来了全新的用户体验。
然而，目前已开发的柔性显示屏很难做到具备传统硬屏的硬度、耐摔特性的同时具有良好的弯折特性，这是因为硬度、耐摔等特性与弯折特性存在对立关系，要具备较好弯折特性必然会牺牲硬度、耐摔等特性。因此如何解决柔性显示屏在具备传统硬屏盖板的硬度特性的同时具有良好的弯折特性是柔性显示屏研究的重点方向。
发明内容
本申请实施例旨在提供一种柔性显示模组及其制造方法、电子设备，以解决现有技术中柔性显示屏不能同时满足硬度、耐摔特性和良好的弯折特性的技术问题。
本申请实施例解决其技术问题提供以下技术方案：
一种柔性显示模组，包括：
柔性显示面板；
超薄触控结构，所述超薄触控结构层叠于所述柔性显示面板的一表面，所述超薄触控结构具有弯折特性和预设模量；以及
超薄偏光结构，所述超薄偏光结构层叠于所述柔性显示面板的相对的另一表面，所述超薄偏光结构具有弯折特性和预设模量。
可选地，所述柔性显示面板包括发光层和驱动层；
所述驱动层和所述发光层依次层叠于所述超薄触控结构上，所述超薄偏光结构层叠于所述发光层上。可选地，所述超薄触控结构包括第一超薄玻璃层和触控组件；
所述触控组件层叠于所述第一超薄玻璃层的一表面上，所述驱动层和所述发光层依次层叠于所述第一超薄玻璃层的另一相对表面上。
可选地，所述柔性显示面板包括发光层、驱动层和柔性基底，所述驱动层和所述发光层依次层叠于所述柔性基底的一表面上；
所述超薄触控结构层叠于所述柔性基底的另一相对表面上。
可选地，所述超薄触控结构包括第一超薄玻璃层和触控组件，
所述触控组件层叠于所述第一超薄玻璃层的表面上，所述触控组件和所述第一超薄玻璃层分别层叠于所述柔性基底的表面上。
可选地，所述触控组件包括触控传感器和功能膜层；
所述触控传感器和所述功能膜层以所述第一超薄玻璃层为承载基底，所述触控传感器和所述功能膜层分别层叠于所述第一超薄玻璃层上。
可选地，所述超薄偏光结构包括第二超薄玻璃层和偏光组件，所述偏光组件的一表面层叠于所述第二超薄玻璃层上，所述偏光组件的相对另一表面层叠于所述柔性显示面板远离所述超薄触控结构的表面上。
可选地，所述偏光组件包括偏光层和功能涂层；
所述偏光层和所述功能涂层均以所述第二超薄玻璃层为承载基底，所述功能涂层和所述偏光层分别依次层叠于所述第二超薄玻璃层朝向所述柔性显示面板的一表面；
所述偏光层层叠于所述柔性显示面板。
可选地，所述超薄偏光结构还包括覆盖膜；
所述覆盖膜层叠于所述第二超薄玻璃层背离所述柔性显示面板的另一表面。
本申请实施例解决其技术问题还提供以下技术方案：
一种电子设备，包括：上述柔性显示模组、处理器、收发器、存储器及总线；
所述柔性显示模组连接于所述总线，以通过总线与处理器、收发器及存储器连接。
本申请实施例解决其技术问题还提供以下技术方案：
一种柔性显示模组的制作方法，包括：提供第一超薄玻璃层和第二超薄玻璃层；
在所述第一超薄玻璃层一表面上依次形成驱动层和发光层；
在所述第一超薄玻璃层的另一相对表面上形成触控组件；
在所述第二超薄玻璃层的一表面上形成偏光组件；
将所述偏光组件层叠于所述发光层。
可选地，所述在所述第二超薄玻璃层的一表面上形成偏光组件之后，还包括：
在所述第二超薄玻璃层远离所述偏光组件的一面形成覆盖膜。
本申请实施例解决其技术问题还提供以下技术方案：
一种柔性显示模组的制作方法，包括：提供第一超薄玻璃层、第二超薄玻璃层及柔性显示面板，所述柔性显示面板包括驱动层，发光层及柔性基底，所述驱动层层叠于所述发光层及柔性基底之间；
在所述第一超薄玻璃层的一表面上形成触控组件；
将所述第一超薄玻璃层或所述触控组件层叠于所述柔性基底；
在所述第二超薄玻璃层的一表面上形成偏光组件；
将所述偏光组件层叠于所述发光层。
可选地，所述在所述第二超薄玻璃层的一表面上形成偏光组件之后，还包括：
在所述第二超薄玻璃层远离所述偏光组件的一面形成覆盖膜。
与现有技术相比较，在本申请实施例提供的柔性显示模组中，通过将具有弯折特性和预设模量的所述超薄触控结构和所述超薄偏光结构分别层叠于所述柔性显示面板的相对两面，在所述柔性显示面板具有弯折特性的基础上，由于所述超薄触控结构和所述超薄片偏光结构均具有预设模量和弯折特性，从而使由所述超薄触控结构、柔性显示面板及所述超薄偏光结构共同组成的柔性显示模组既具有可弯折性，同时具有预设硬度，进而提高了柔性屏平整度和恢复性，同时避免了弯折过程中，所述柔性显示模组表面出现褶皱的现象。
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，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图示出的结构获得其他的附图。
图1是本申请其中一实施例提供的一种柔性显示模组的结构示意图；
图2是本申请另一实施例提供的一种柔性显示模组的结构示意图；
图3是图1所示的柔性显示模组的超薄触控结构的结构示意图；
图4是图1所示的柔性显示模组的超薄偏光结构的结构示意图；
图5是本申请又一实施例提供的一种柔性显示模组的结构示意图；
图6是图5所示的柔性显示模组的超薄偏光结构的结构示意图；
图7是本申请再一实施例提供的一种柔性显示模组的结构示意图；
图8是本申请其中一个实施例提供的一种柔性显示模组的制造方法的流程图；
图9是本申请另一实施例提供的一种柔性显示模组的制造方法的流程图。
具体实施方式
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的一部分实施例，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，都属于本申请保护的范围。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。若本申请实施例中有涉及“第一”、“第二”等的描述，则该“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其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至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本申请要求的保护范围之内。
本申请一实施例提供的一种柔性显示模组，包括柔性基底和位于所述柔性基板上的发光器件层，所述柔性基板可包括塑性材料，塑性材料可以是从以下材料构成的组中选择的有机材料：聚醚砜(PES)、聚丙烯酸酯(PAR)、聚醚酰亚胺(PEI)、聚萘二甲基乙二醇酯(PEN)、聚对苯二甲酸乙二醇酯(PET)、 聚苯硫醚(PPS)、聚芳酯、聚酰亚胺、聚碳酸酯(PC)、三乙酸纤维素(TAC)以及乙酸丙酸纤维素(CAP)等，通常，所述发光器件层中可以但不限于包括有机发光二极管(OLED)；薄膜层，位于所述发光器件层上，所述薄膜层通常为聚对苯二甲酸乙二醇酯(PET)和胶材层的复合层，所述薄膜层可以对所述发光器件层起到水氧阻隔的补偿作用，也可以将所述薄膜层理解为所述发光器件层的保护层，所述薄膜层的厚度约为80μm。
为了消除环境光的影响、提高对比度，所述柔性显示模组还包括贴附在所述薄膜层上的偏光片(POL)。所述偏光片通常包括保护膜层，1/4λ波片和偏光功能片层。所述保护膜层的材料可以为压敏胶(PSA)，有利于所述偏光片直接贴附在所述薄膜层上；所述1/4λ波片贴附在所述保护膜层上方；所述偏光功能片层通常包括最中间的PVA层(聚乙烯醇层)和上下两层为TAC层(三醋酸纤维素层)的保护层，以及粘合所述偏光功能片层和所述1/4λ波片的粘附层，所述粘附层也可以但不限于为压敏胶层。
进一步的，所述柔性显示模组还包括触控功能层(TP)、盖板(CG)以及粘合所述偏光片和所述触控功能层的第一粘合胶层和粘合所述触控功能层和所述盖板的第二粘合胶层，所述第一粘合胶层和所述第二粘合胶层均可以为光学透明胶层(OCA)，其厚度分别约为μm，所述触控功能层的厚度约为50μm，所述盖板为进行了硬化处理的PI涂层，其厚度约为30μm。
发明人研究发现，为了实现可弯折特性，上述柔性显示模组主要以膜材料为主，膜材类的柔性显示模组很难具备耐摔、良好硬度等特性，这是因为要达到具备良好硬度、耐摔的要求，需要制备的材料具有较强的强度，而膜材无法进行强化且因为柔软(模量低)，从而使其制备的柔性显示模组无法具备耐摔、良好硬度等特性。
同时上述柔性显示模组的膜材特别是胶材的常温模量只有几十到几百kpa，其弯折特性佳但恢复性差(需要一定时间恢复)，且弯折半径越小其恢复性越差，最终导致上述柔性显示模组平整度差以及表面有褶皱等技术问题。
发明人研究还发现，由于上述柔性显示模组中的偏光片、触控功能层和盖板都是通过粘合胶层贴附的方式进行层叠设置，涉及多层粘合胶层，导致所述柔性显示模组的制作方法繁杂，所述柔性显示模组的膜层数多，且所述柔性显示模组的厚度较厚，其总厚度在500μm左右，在对上述柔性显示模组 进行弯折的过程中，容易出现膜层分离或分裂的现象，导致柔性显示模组失效。
请参阅图1，为了解决上述技术问题，本申请一实施例提供的一种柔性显示模组100，包括柔性显示面板20、超薄触控结构40和超薄偏光结构60。
所述柔性显示面板20可为液晶显示面板(TFT-LCD)或者OLED(Organic Light-Emitting Diode，有机发光二极管)显示面板。所述柔性显示面板20用于发射光线，例如当柔性显示面板20为液晶显示面板时，背光源可促使液晶像素单元成像，并且使得液晶显示面板发射光线，其中，发射光线以背光源为光源起始点，穿过各个液晶像素单元之间的缝隙，发射到液晶显示面板的外部环境。又例如当柔性显示面板20为OLED显示面板时，OLED显示面板内若干OLED发光单元组成的发光层产生所述发射光线，其中，发射光线以发光层为光源起始点，穿过各个OLED像素单元之间的缝隙，发射到显示面板20的外部环境。
所述超薄触控结构40用于感应用户的触摸操作。例如当用户触摸所述柔性显示模组100时，由于人体电场，用户触摸部位和所述超薄触控结构40的工作面形成一个耦合电容，因为工作面上接有高频信号，于是触摸部位吸收走一个很小的电流，所述电流分别从超薄触控结构40的四个角上的电极中流出，通过对四个电流比例的精密计算，得出用户触摸部位的位置，进而响应用户的相关触摸进行操作。
为了使所述柔性显示模组100同时具备可弯折和恢复性高的特性，使所述超薄触控结构40层叠于所述柔性显示面板20的一表面；所述超薄触控结构40具有可弯折特性，同时具有预设模量。
所述预设模量过大或过小均无法使所述柔性显示模组100同时具备可弯折和恢复性高的特性，因为如果所述预设模量过大会使其所述超薄触控结构40硬度太大，造成所述柔性显示模组100的弯折特性较差；又因为如果所述预设模量过小，会导致所述柔性显示模组100的恢复性差(需要一定时间恢复)，进而导致柔性显示模组100的平整度差以及表面有褶皱现象。
由于所述预设模量直接影响恢复和弯折特性，为了同时达到较好的恢复和弯折特性，设置所述超薄触控结构40的预设模量的范围为20Gpa-50Gpa。
所述超薄偏光结构60用于消除环境光对柔性显示模组100的影响、提高 其对比度。
为了进一步提高所述柔性显示模组100的可弯折和恢复特性，使所述超薄偏光结构60层叠于所述柔性显示面板20的相对的另一表面；所述超薄偏光结构60具有可弯折特性，同时具有预设模量。
由于所述预设模量直接影响恢复和弯折特性，为了同时达到较好的恢复和弯折特性，设置所述超薄偏光结构60的预设模量的范围为20Gpa-50Gpa。
在本实施例中，将具有弯折特性和预设模量的所述超薄触控结构40和所述超薄偏光结构60分别层叠于所述柔性显示面板20的相对两表面，在所述柔性显示面板20具有弯折特性的基础上，由于所述超薄触控结构40和所述超薄偏光结构60均具有预设模量和弯折特性，从而使由所述超薄触控结构40、柔性显示面板20及所述超薄偏光结构60共同组成的柔性显示模组100同时具有可弯折性和预设硬度，进而提高了柔性显示模组100的平整度和恢复性，同时避免了弯折过程中，所述柔性显示模组100表面出现褶皱的现象。
而且由于制作所述柔性显示模组100的过程中只需要将所述超薄触控结构40和所述超薄偏光结构60分别层叠于所述柔性显示面板20，优化了传统的柔性显示模组100的制作方法，减少了传统柔性显示模组100的膜层数和厚度，进而避免了所述柔性显示模组100在进行弯折的过程中，容易出现膜层分离或分裂的现象，提高了所述柔性显示模组100的使用寿命。
请一并参阅图2和图3，为了使所述超薄触控结构40同时具备可弯折和恢复性高的特性，在本实施例中，所述超薄触控结构40包括第一超薄玻璃层42和触控组件44，所述第一超薄玻璃层42层叠于所述柔性显示面板20，所述触控组件44层叠于所述第一超薄玻璃层42上。
所述第一超薄玻璃层42具有超薄特性，所述第一超薄玻璃层42可为含碱超薄玻璃和无碱超薄玻璃，具体地，所述含碱超薄玻璃可为钠钙硅玻璃或铝硅酸盐玻璃。所述无碱超薄玻璃可为硼酸盐玻璃。
为了使所述第一超薄玻璃层42具备超薄特性，所述第一超薄玻璃层42需经薄化(蚀刻)、强化(离子交换)以达到超薄特性的要求，所述第一超薄玻璃层42的厚度范围可为10μm～100μm，优选地，所述第一超薄玻璃层42的厚度范围为50μm～75μm。
为了使所述第一超薄玻璃层42在可弯折性的基础上，同时可具有较高硬 度和/或刚度，以满足耐摔和恢复性特性。所述第一超薄玻璃层42的表面硬度范围为3H～9H，优选地，所述第一超薄玻璃层42的表面硬度范围为所4H～7H，所述第一超薄玻璃层42的杨氏模量(E)范围为10GPa～100GPa，优选地，所述第一超薄玻璃层42的杨氏模量(E)范围为50Gpa～80Gpa。
以下为具体实现或制作过程，以铝硅酸盐超薄玻璃为例进行说明：
所述铝硅酸盐超薄玻璃的原料按照重量百分数包括以下成分：氧化硅60重量份，氧化铝10重量份，氧化钠11重量份，氧化镁3重量份；
所述的铝硅酸盐超薄玻璃的制备方法，包括如下步骤：
1)原料熔化：将上述铝硅酸盐超薄玻璃的原料直接加入到1300摄氏度左右的熔窑中，形成玻璃液；
2)玻璃液澄清：将温度升高到1400-1500摄氏度，形成玻璃液，排出其中的可见气泡和溶解气体；
3)玻璃液均化：将玻璃长期处于高温(例如：1200-1300摄氏度)下，消除玻璃液中的条纹，形成均化的玻璃液；
4)玻璃液冷却：将澄清和均化后的玻璃液均匀降温，玻璃成型；
5)采用离子交换法对步骤4)制成的铝硅酸盐超薄玻璃进行处理，具体处理步骤如下：将玻璃进行超声波清洗、刷洗后对所述铝硅酸盐超薄玻璃经薄化(蚀刻)处理，然后经200～300摄氏度预热处理，然后浸入450摄氏度熔融KNO 3中进行离子交换处理。最终形成所述铝硅酸盐超薄玻璃。
在本实施例中，由于所述第一超薄玻璃层42具有超薄特性，所述第一超薄玻璃层42的厚度范围可仅为50μm～75μm，从而使由所述第一超薄玻璃层42和所述触控组件44组成的超薄触控结构40的厚度较小，进而使所述柔性显示模组100的厚度减小，使其更加符合用户的审美，提升了用户体验。
所述第一超薄玻璃层42具有可弯折性，同时具有较高硬度和/或刚度，从而使由所述第一超薄玻璃层42和所述触控组件44组成的超薄触控结构40同时具有可弯折性和较高硬度和/或刚度，进而提高了柔性显示模组100的平整度和恢复性，同时避免了弯折过程中，所述柔性显示模组100表面出现褶皱的现象。
所述触控组件44包括触控传感器442和功能膜层444，所述触控传感器442和所述功能膜层444以所述第一超薄玻璃层42为承载基底，且分别依次 层叠于所述第一超薄玻璃层42远离所述柔性显示面板20的表面上。
所述触控传感器442用于感应和反馈所述用户或物体的触摸操作，所述触控传感器442为超薄柔性双层触控屏传感器，包括从上至下层次设置的第一触控功能层、第一光固化胶层、柔性薄膜、第二光固化胶层、第二触控功能层，所述第一触控功能层嵌固于第一光固化胶层，所述第二触控功能层嵌固于第二光固化胶层内，第一光固化胶层、第二光固化胶层与柔性薄膜集为一体化，第一触控功能层、第二触控功能层分别包括纳米导电网络及银浆蚀刻形成的触控图文。
所述柔性薄膜的柔性基材为透光率≥90％的PET、PI、COP光学级透明基材中的一种。所述纳米导电网络方阻为50-100Ω。纳米导电网络方阻优选为50Ω。所述柔性薄膜的厚度为5-50um。柔性薄膜的厚度优选为23um。所述纳米导电网络的厚度为20-200nm。纳米导电网络的厚度优选为200nm。所述银浆的厚度为3-5um。银浆的厚度优选为4um。所述光固化胶层的厚度为2-20um。光固化胶层的厚度优选为10um。所述超薄柔性双层触控屏传感器可见光透过率为85％-95％，厚度为10-100um，优选为50um，弯折半径1-6mm，优选为2mm，弯折次数大于十万次。
在本实施例中，所述纳米导电网络嵌固于第一光固化胶层、第二光固化胶层，对导电网络的稳定性、可靠性起关键性作用。同时第一光固化胶层、第二光固化胶层可以非常薄，能够提高所述触控组件44的弯曲和折叠性能。
而且所述触控传感器442不用光学胶粘合，减少粘合层，简化了光学胶冗长的贴合工艺制程，降低了制造成本。同时由于没有光学胶层，整个双面触控传感器442的厚度可以最大程度的降低，提高了所述触控传感器442的弯曲和折叠性能。
所述功能膜层444包括透明支撑层、指纹触控层和承载基材等其中一种或几种。所述透明支撑层、指纹触控层及承载基材依次层叠于所述触控传感器442远离所述柔性显示面板20的表面上。
所述透明支撑层具有预设硬度和刚度，所述透明支撑层用于支撑所述柔性显示面板20，例如当所述按压物按压所述柔性显示面板20的指纹采集区域时，由于所述透明支撑层具有预设硬度和刚度，所述透明支撑层可在一定程度上抵消掉所述按压物对柔性显示面板20的按压力，对所述指纹采集区域起 到支撑作用，消除所述指纹采集区域的形变对指纹成像质量造成的不良影响，提高了指纹成像质量。
所述透明支撑层为透明玻璃、亚克力有机薄膜(PMMA)等透光材质所形成，所述透明支撑部可以受可见光、红外光、或是紫外光所穿透。
所述指纹触控层用于进行指纹识别操作，所述指纹触控层包括线路基板、支架、镜片、指纹芯片、滤光片及微透镜。所述支架设置在所述线路基板上；所述镜片设置在所述支架上；所述指纹芯片设置在所述线路基板上面，且与所述线路基板电性连接；所述滤光片设置在所述指纹芯片上面；所述微透镜(micro-lens)设置在所述滤光片上面。由于将微透镜贴付于滤光片表面，滤光片可以设计得较小，降低了成本。
在一些实施例中，所述指纹触控层可为其他结构或任意型号，只要所述指纹触控层能够进行指纹识别操作即可。
所述承载基底用于作为承载柔性显示面板20和超薄偏光结构60衬底，所述承载基底为柔性材料，所述承载基底的材质可为聚酰亚胺(PI)、聚碳酸酯(PC)、聚乙二醇对酞酸酯(PET)、聚醚砜(PES)、聚乙烯薄膜(PEN)、纤维增强塑料(FRP)等等树脂。
所述柔性显示面板20包括发光层22和驱动层24，所述驱动层24用于驱动所述发光层22，所述驱动层24层叠于所述超薄触控结构40，所述发光层22层叠于所述驱动层24，所述超薄偏光结构60层叠于发光层22。
为了优化传统的柔性显示模组的制作方法，减少传统柔性显示模组的膜层数和厚度，在本实施例中，所述驱动层24和所述发光层22均以超薄触控结构40中的第一超薄玻璃层42为衬底，所述驱动层24和所述发光层22直接依次形成于所述第一超薄玻璃层42的一表面上，所述触控组件44直接形成与所述第一超薄玻璃层42的另一相对表面上，所述第一超薄玻璃层42可同时作为柔性显示面板20和所述触控组件44的承载基底，减少传统柔性显示模组的膜层数和厚度，进而避免了所述柔性显示模组100在进行弯折的过程中，容易出现膜层分离或分裂的现象；同时所述柔性显示模组100的厚度的减小，提升了用户体验。
所述发光层22作为发射光线源用于产生所述发射光线。所述发光层22包括有机功能层、阴极及阳极。其中，所述有机功能层层叠设置于所述阴极 与所述阳极之间，以产生所述发射光线。其中，所述有机功能层由基质材料掺杂一定比例的有机发光材料制备而成。在施加外部电压的情况下，所述阳极的空穴向所述有机功能层迁移，所述阴极的电子向所述有机功能层迁移，电子与空穴在所述有机功能层中相遇形成电子-空穴对，电子从激发态跃迁为基态，以辐射光子的形式释放能量，从而产生电致发光。其中的有机发光材料可以选择有机小分子材料或有机高分子材料，以实现电致发光。
所述驱动层24设置于所述发光层22的一侧面，用以驱动所述发光层22。所述驱动层24结构，以及如何扫描驱动所述发光层22产生所述发射光线，是现有技术手段，在此不再赘述。
请一并参阅图2和图4，为了使所述超薄偏光结构60同时具备可弯折和恢复性高的特性，在本实施例中，所述超薄偏光结构60包括第二超薄玻璃层62和偏光组件64，所述偏光组件64的一面层叠于所述第二超薄玻璃层62上，所述偏光组件64的相对另一面层叠于所述柔性显示面板20远离所述超薄触控结构40的表面上。
所述第二超薄玻璃层62与所述第一超薄玻璃层42的功能特性、材质、厚度、表面硬度、杨氏模量及制备工艺等均相同，在此不再赘述。
在本实施例中，由于所述第二超薄玻璃层62具有超薄特性，从而使由所述第二超薄玻璃层62和所述偏光组件64组成的超薄偏光结构60的厚度较小，进一步使所述柔性显示模组100的厚度减小，使其更加符合用户的审美，提升了用户体验。
同时所述第二超薄玻璃层62在具有可弯折性的基础上，还具有较高硬度和/或刚度，从而使由所述第二超薄玻璃层62和所述偏光组件64组成的超薄偏光结构60同时具有可弯折性和较高硬度和/或刚度，进而提高了柔性显示模组100的平整度和恢复性，同时避免了弯折过程中，所述柔性显示模组100表面出现褶皱的现象。
所述偏光组件64包括偏光层642和功能涂层644，所述功能涂层644和所述偏光层642均以所述第二超薄玻璃层62为承载基底，且分别依次层叠于所述第二超薄玻璃层62朝向所述柔性显示面板20的表面上，所述偏光层642还层叠于功能涂层644。
所述偏光层642为圆偏光层，用于将发光层22产生的发射光学由非偏振 光转化为偏振光，同时用于防止所述外界光线的反射光通过。在本实施例中，所述圆偏光片包括线偏光片和四分之一波片，所述四分之一波片设置于所述线偏光片和所述柔性显示面板20之间，其中，所述线偏光片靠近所述外界光线的入射方向，即所述四分之一波片为圆偏光片的出光侧，所述线偏光片为圆偏光片的入光侧。
所述功能涂层644包括油墨层、硬化层、抗指纹层、防眩层及抗反射层中的一种或多种。所述油墨层、硬化层、抗指纹层、防眩层及抗反射层的其中一个层叠涂覆或其中多个依次层叠涂覆于所述第二超薄玻璃层62的表面上，当所述功能涂层644包括多种涂层时，多种所述涂层的层叠顺序可根据实际情况的需要进行设置，在此不进行限定。由于上述不同类型的涂层使用的材质是不同的，所对应的用途也是不同的，在实际的应用中，为了实现不同的功能，可选取一种或多种所述涂层涂覆于所述第二超薄玻璃层62的表面上。
具体地，所述油墨层用于给所述柔性显示模组100提供所需要的外观颜色，所述油墨层的外观颜色可以为红色、橙色、黄色、绿色、青色、蓝色、紫色、粉色、白色等。油墨层可以通过丝印(丝网印刷，Screen Printing)工艺形成，在本实施例中，所述油墨层的材料为由环氧树脂调制形成的黑色油墨。
具体地，所述硬化层用于保护所述超薄偏光结构60，提高所述柔性显示模组100的耐刮、耐磨特性，所述硬化层的材质可为金属氮化物，也可由纯金属或金属碳或金属、氮化物和碳的任意组合构成，也可以是所谓的DLC-层(类金刚石层)。
具体地，所述抗指纹层用于提升所述柔性显示模组100的抗污性能，所述抗指纹层能够减少指纹、油污、灰尘、水等粘附在所述柔性显示模组100上。所述抗指纹层的材质可为有机氟化物。
具体地，所述防眩层用于控制光散射/光反射以抑制图像显示装置的可见性的劣化，所述防眩层的材质可为第二基于(甲基)丙烯酸酯的交联聚合物的第二粘合剂、和分散在第二粘合剂上的具有亚微米(亚μm)级的至少两种透光细颗粒。
具体地，所述抗反射层用于利用光的散射或光学干涉来减少图像的反射和光的反射，所述抗反射层的材质可为聚乙烯醇膜(polyvinyl alcohol，简称PVA)，但不以此为限，也可以用液晶中添加颜料来替代，以便进一步降低厚 度。所述抗反射层的厚度范围是3um至50um，但不以此为限。
在一些实施例中，所述功能涂层644还可为增透射层、遮光层及保护层等等。可根据所需要实现的功能，任意择取其中一个或多种层叠涂覆于所述第二超薄玻璃层62的表面上。
请一并参阅图5和图6，本申请另一实施例提供的柔性显示模组100a与图1所示的柔性显示模组100基本相同，区别在于柔性显示模组100a的超薄偏光结构60a还包括覆盖膜66，所述覆盖膜66层叠于所述第二超薄玻璃层62远离所述柔性显示面板20的一表面，所述第二超薄玻璃层62与所述覆盖膜66共同组成所述柔性显示模组100a的柔性盖板。
在本实施例中，所述第二超薄玻璃层62既与所述覆盖膜66共同组成所述柔性显示模组100a的柔性盖板，所述第二超薄玻璃层62也同时作为所述偏光组件64的承载基底，使所述偏光组件64的功能涂层644和偏光层642分别依次层叠于所述第二超薄玻璃层62的表面上。因此通过所述第二超薄玻璃层62的设置，优化了传统的柔性显示模组的制作方法，减少了传统柔性显示模组100的膜层数和厚度，进而避免了所述柔性显示模组100a在进行弯折的过程中，容易出现膜层分离或分裂的现象，提高了所述柔性显示模组100a的使用寿命。
在所述第二超薄玻璃层62与所述覆盖膜66共同组成的柔性盖板中，所述覆盖膜66用于提高所述柔性盖板的硬度。由于所述覆盖膜66形成于所述第二超薄玻璃层62且正对使用用户，所述覆盖膜66在具有预设硬度的同时，可具有耐刮、耐磨的特性。进一步地，所述覆盖膜66的材料为有机材料时，使所述覆盖膜66具备弯折特性，可进一步提高所述柔性盖板的可弯折性。
在本实施例中，由于第二超薄玻璃层62的超薄特性，使所述柔性盖板具有良好的弯折特性，同时覆盖膜66在不影响柔性盖板的弯折特性的同时，提高了柔性盖板的硬度，使所述由第二超薄玻璃层62和所述覆盖膜66共同组成的柔性盖板，在具有良好的弯折特性同时，还具有硬度、耐摔等特性，满足了柔性显示模组100a中对柔性盖板的要求。
在保证柔性盖板具有一定硬度的基础上，为了使所述柔性盖板具有更好的弯折特性，使所述由第二超薄玻璃层62和所述覆盖膜66共同组成的柔性盖板的厚度范围为10μm～200μm，优选地，所述柔性盖板的厚度范围为40 μm～100μm。
所述覆盖膜66的材质可为PI(polyimide，聚酰亚胺)、CPI(colorless，无色透明聚酰亚胺)、PET(polyethylene terephthalate，聚对苯二甲酸乙二酯)、PMMA(Poly Methyl Methacrylatemethacrylic Acid，聚甲基丙烯酸甲酯)、PC(Polycarbonate，聚碳酸酯)。
为了使所述覆盖膜66形成于所述第二超薄玻璃层62上，并且使覆盖膜66具有一定硬度，进而提高所述柔性盖板的硬度，可采用涂布或印刷等卷对卷(Roll to Roll)工艺在所述第二超薄玻璃层62上形成所述覆盖膜66。所述覆盖膜66的表面硬度范围为1H～5H，优选地，所述覆盖膜66的表面硬度范围为3H～4H。
为了使所述覆盖膜66具备一定的弯折特性，进一步提高了所述柔性盖板的可弯折性，使所述覆盖膜66的杨氏模量(E)范围为2Gpa～10Gpa，优选地，所述覆盖膜66的杨氏模量(E)范围为5～7Gpa，所述覆盖膜66的厚度范围为10～100μm，所述覆盖膜66的厚度范围为20～60μm。
请参阅图7，本申请又一实施例提供的柔性显示模组100b与图2所示的柔性显示模组100基本相同，区别在于所述柔性显示模组100b中的所述柔性显示面板20a还包括柔性基底26，所述驱动层24和所述发光层22以所述柔性基底26为衬底，所述驱动层24和所述发光层22直接依次形成于所述柔性基底26上。所述超薄触控结构40和所述超薄偏光结构60分别粘附于所述柔性显示面板20a的相对两面，具体地，所述触控组件44和所述第一超薄玻璃层42分别层叠于所述柔性基底26的表面上。即可所述触控组件44层叠于所述柔性基底26的表面上，也可所述第一超薄玻璃层42层叠于所述柔性基底26的表面上；所述柔性基底26层叠于所述第一超薄玻璃层42，所述偏光层642层叠于所述发光层22。在本实施例中，由于在柔性显示面板20a的驱动层24和超薄触控结构40的第一超薄玻璃层42之间增加了柔性基底26，从而增加了驱动层24和触控传感器442之间距离，可以降低驱动层24的电性对触控传感器442的影响。
所述柔性基底26的材质可为聚酰亚胺(PI)、聚碳酸酯(PC)、聚乙二醇对酞酸酯(PET)、聚醚砜(PES)、聚乙烯薄膜(PEN)、纤维增强塑料(FRP)等等树脂。
需要说明的是，上述任一实施例中的“粘附”是指通过光学胶或其他具 有粘性的胶类进行粘结贴附。
所述光学胶为OCA胶(Optically Clear Adhesive)，所述OCA胶具有无色透明、光透过率在90％以上、胶结强度良好，可在室温或中温下固化，且有固化收缩小等特点。
需要说明的是，上述任一实施例中的“形成”是指旋涂、打印、喷墨或溅射等物理或化学手段进行沉积。
请参阅图8，本申请其中一个实施例提供一种柔性显示模组100的制造方法，需要说明的是，上述对柔性显示模组100的实施例的解释说明也适用于本实施例的柔性显示模组100的制备方法，为避免冗余，在此不再详细展开。需要说明的是，在下述各个实施例中，下述各步骤之间并不必然存在一定的先后顺序，本领域普通技术人员，根据本申请实施例的描述可以理解，不同实施例中，下述各步骤可以有不同的执行顺序，亦即，可以并行执行，亦可以交换执行等等；不同实施例中，下述有些步骤亦可以省略或被代替。
所述柔性显示模组100的制造方法包括：
步骤S81:提供第一超薄玻璃层和第二超薄玻璃层。
具体地，所述第一超薄玻璃层和所述第二超薄玻璃层均具有超薄特性，所述第一超薄玻璃层和所述第二超薄玻璃层可为含碱超薄玻璃和无碱超薄玻璃，所述含碱超薄玻璃可为钠钙硅玻璃或铝硅酸盐玻璃。所述无碱超薄玻璃可为硼酸盐玻璃。
所述第一超薄玻璃层和所述第二超薄玻璃层均具有可弯折性同时具有较高硬度和/或刚度。
步骤S82:在所述第一超薄玻璃层一表面上依次形成驱动层和发光层。具体地，采用等离子体增强化学气相沉积方式(Plasma Enhanced Chemical Vapor Deposition:简称PECVD)、低压化学气相沉积方式(Low Pressure Chemical Vapor Deposition:简称LPCVD)、大气压化学气相沉积方式(ASmospheric Pressure Chemical Vapor Deposition:简称APCVD)或电子回旋谐振化学气相沉积方式(ElecSron CycloSron Resonance Chemical Vapor Deposition:简称ECR-CVD)、溅射及旋涂方式在第一超薄玻璃层42的一表面形成所述驱动层24和发光层22，所述驱动层24和所述发光层22组成所述柔性显示面板20。
步骤S83:在所述第一超薄玻璃层的另一相对表面上形成触控组件。
具体地，所述触控组件44包括触控传感器442和功能膜层444，将所述触控传感器442和所功能膜层444分别依次形成于所述第一超薄玻璃层42远离所述柔性显示面板20的表面上，所述触控组件44和所述第一超薄玻璃层42组成所述超薄触控结构40。
步骤S84:在所述第二超薄玻璃层的一表面上形成偏光组件。
具体地，所述偏光组件64包括偏光层642和功能涂层644，将所述功能涂层644和所述偏光层642分别依次形成于所述第二超薄玻璃层62的表面上。，所述偏光组件64和所述第二超薄玻璃层62组成超薄偏光结构60。
在一些实施例中，所述步骤S84之后，所述方法还包括：
在所述第二超薄玻璃层远离所述偏光组件的一面形成覆盖膜。
具体地，采用溅射、旋涂或喷涂的方式在第二超薄玻璃层42远离所述偏光组件的一面形成覆盖膜，所述驱动层24和所述发光层22组成所述柔性显示面板20。所述覆盖膜66和所述第二超薄玻璃42组成所述柔性显示模组100a的柔性盖板。
具体地，所述覆盖膜66的材质可为PI(polyimide，聚酰亚胺)、CPI(colorless，无色透明聚酰亚胺)、PET(polyethylene terephthalate，聚对苯二甲酸乙二酯)、PMMA(Poly Methyl Methacrylatemethacrylic Acid，聚甲基丙烯酸甲酯)、PC(Polycarbonate，聚碳酸酯)。步骤S85:将所述偏光组件层叠于所述发光层。
具体地，将所述超薄偏光结构60的偏光组件64通过光学胶贴附于所述柔性显示面板20远离所述超薄触控结构40的一面，也即贴附于所述发光层22上。
请参阅图9，本申请另一实施例提供一种柔性显示模组100b的制造方法，需要说明的是，上述对柔性显示模组100的实施例的解释说明也适用于本实施例的柔性显示模组100b的制备方法，为避免冗余，在此不再详细展开。需要说明的是，在下述各个实施例中，下述各步骤之间并不必然存在一定的先后顺序，本领域普通技术人员，根据本申请实施例的描述可以理解，不同实施例中，下述各步骤可以有不同的执行顺序，亦即，可以并行执行，亦可以交换执行等等；不同实施例中，下述有些步骤亦可以省略或被代替。
所述柔性显示模组100b的制造方法包括：
步骤S91:提供第一超薄玻璃层、第二超薄玻璃层及柔性显示面板，所述柔性显示面板包括驱动层24，发光层22及柔性基底26，所述驱动层24层叠于所述发光层22及柔性基底26之间。
步骤S92:在所述第一超薄玻璃层的一表面上形成触控组件。
具体地，所述触控组件44包括触控传感器442和功能膜层444，将所述触控传感器442和所功能膜层444分别形成于所述第一超薄玻璃层42的表面上。所述第一超薄玻璃层42和所述触控组件44组成超薄触控结构。
步骤S93:将所述第一超薄玻璃层或所述触控组件层叠于所述柔性基底。
具体地，将所述第一超薄玻璃层42或触控组件44通过光学胶贴附于所述柔性基底上26。
步骤S94:在所述第二超薄玻璃层的一表面上形成偏光组件。
具体地，所述偏光组件64包括偏光层642和功能涂层644，将所述偏光层642和所述功能涂层644分别形成于所述第二超薄玻璃层62的表面上。所述第二超薄玻璃层62和所述偏光组件64共同组成超薄偏光结构60。
在一些实施例中，所述步骤S94之后，所述方法还包括：
在所述第二超薄玻璃层远离所述偏光组件的一面形成覆盖膜。
具体地，采用溅射、旋涂或喷涂的方式在第二超薄玻璃层42远离所述偏光组件的一面形成覆盖膜，所述覆盖膜66和所述第二超薄玻璃42组成所述柔性显示模组100b的柔性盖板。步骤S95:将所述偏光组件层叠于所述发光层。
具体地，将所述偏光组件64中的偏光层642通过光学胶贴附于所述发光层20表面的表面上。
本申请另一实施例还提供一种电子设备，所述电子设备包括但不限于手机、笔记本、平板电脑、POS机、车载电脑、相机等。
所述电子设备包括上述任一实施例中的柔性显示模组100、100a或100b，处理器，收发器，存储器和总线。
其中，所述柔性显示模组100、100a或100b连接于总线，以通过总线与处理器等其它部分连接。所述柔性显示模组100、100a或100b的显示区域可以为操作人员提供一输入界面，以便操作人员通过该输入界面进行操作。
其中，收发器用于与外部设备之间收发数据。处理器的数量可以是一个或多个。本申请的一些实施例中，处理器、存储器和收发器可通过总线或其他方式连接。
其中，存储器中存储程序代码。处理器用于调用存储器中存储的程序代码，用于执行各种操作。
需要说明的是，这里的处理器可以是一个处理元件，也可以是多个处理元件的统称。例如，该处理元件可以是中央处理器(Central Processing Unit，CPU)，也可以是特定集成电路(Application Specific Integrated Circuit，ASIC)，或者是被配置成实施本申请实施例的一个或多个集成电路，例如：一个或多个微处理器(digital signal processor，DSP)，或，一个或者多个现场可编程门阵列(Field Programmable Gate Array，FPGA)。
其中，存储器可以是一个存储装置，也可以是多个存储元件的统称，且用于存储可执行程序代码或应用程序运行装置运行所需要参数、数据等。且存储器可以包括随机存储器(RAM)，也可以包括非易失性存储器(non-volatile memory)，例如磁盘存储器，闪存(Flash)等。
其中，总线可以是工业标准体系结构(Industry Standard Architecture，ISA)总线、外部设备互连(Peripheral Component，PCI)总线或扩展工业标准体系结构(Extended Industry Standard Architecture，EISA)总线等。该总线可以分为地址总线、数据总线、控制总线等。
与现有技术相比较，本申请电子设备中提供了一种柔性显示模组100、100a或100b，通过将具有弯折特性和预设模量的所述超薄触控结构40和所述超薄偏光结构60或60a分别层叠于所述柔性显示面板20或20a的相对两面，在所述柔性显示面板20或20a具有弯折特性的基础上，由于所述超薄触控结构40和所述超薄片偏光结构60或60a均具有预设模量和弯折特性，从而使由所述超薄触控结构40、柔性显示面板20或20a及所述超薄偏光结构60或60a共同组成的柔性显示模组100、100a或100b既具有可弯折性，同时具有预设硬度，进而提高了柔性屏平整度和恢复性，同时避免了弯折过程中，所述柔性显示模组100、100a或100b表面出现褶皱的现象。
最后应说明的是：以上实施例仅用以说明本申请的技术方案，而非对其限制；在本申请的思路下，以上实施例或者不同实施例中的技术特征之间也 可以进行组合，步骤可以以任意顺序实现，并存在如上所述的本申请的不同方面的许多其它变化，为了简明，它们没有在细节中提供；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围。

Claims (14)

  1. 一种柔性显示模组，其特征在于，包括：
    柔性显示面板；
    超薄触控结构，所述超薄触控结构层叠于所述柔性显示面板的一表面，所述超薄触控结构具有弯折特性和预设模量；以及
    超薄偏光结构，所述超薄偏光结构层叠于所述柔性显示面板的相对的另一表面，所述超薄偏光结构具有弯折特性和预设模量。
  2. 根据权利要求1所述的柔性显示模组，其特征在于，
    所述柔性显示面板包括发光层和驱动层；
    所述驱动层和所述发光层依次层叠于所述超薄触控结构上，所述超薄偏光结构层叠于所述发光层上。
  3. 根据权利要求2所述的柔性显示模组，其特征在于，
    所述超薄触控结构包括第一超薄玻璃层和触控组件；
    所述触控组件层叠于所述第一超薄玻璃层的一表面上，所述驱动层和所述发光层依次层叠于所述第一超薄玻璃层的另一相对表面上。
  4. 根据权利要求1所述的柔性显示模组，其特征在于，
    所述柔性显示面板包括发光层、驱动层和柔性基底，所述驱动层和所述发光层依次层叠于所述柔性基底的一表面上；
    所述超薄触控结构层叠于所述柔性基底的另一相对表面上。
  5. 根据权利要求4所述的柔性显示模组，其特征在于，
    所述超薄触控结构包括第一超薄玻璃层和触控组件，
    所述触控组件层叠于所述第一超薄玻璃层的表面上，所述触控组件和所述第一超薄玻璃层分别层叠于所述柔性基底的表面上。
  6. 根据权利要求3或5所述的柔性显示模组，其特征在于，
    所述触控组件包括触控传感器和功能膜层；
    所述触控传感器和所述功能膜层以所述第一超薄玻璃层为承载基底，所述触控传感器和所述功能膜层分别层叠于所述第一超薄玻璃层上。
  7. 根据权利要求1至6任一项所述的柔性显示模组，其特征在于，
    所述超薄偏光结构包括第二超薄玻璃层和偏光组件，所述偏光组件的一 表面层叠于所述第二超薄玻璃层上，所述偏光组件的相对另一表面层叠于所述柔性显示面板远离所述超薄触控结构的表面上。
  8. 根据权利要求7所述的柔性显示模组，其特征在于，
    所述偏光组件包括偏光层和功能涂层；
    所述偏光层和所述功能涂层均以所述第二超薄玻璃层为承载基底，所述功能涂层和所述偏光层分别依次层叠于所述第二超薄玻璃层朝向所述柔性显示面板的一表面；
    所述偏光层层叠于所述柔性显示面板。
  9. 根据权利要求8所述的柔性显示模组，其特征在于，
    所述超薄偏光结构还包括覆盖膜；
    所述覆盖膜层叠于所述第二超薄玻璃层背离所述柔性显示面板的另一表面。
  10. 一种电子设备，其特征在于，包括：如权利要求1-9任一项所述的柔性显示模组、处理器、收发器、存储器及总线；
    所述柔性显示模组连接于所述总线，所述柔性显示模组通过所述总线分别与所述处理器、收发器及存储器连接。
  11. 一种柔性显示模组的制作方法，其特征在于，包括：
    提供第一超薄玻璃层和第二超薄玻璃层；
    在所述第一超薄玻璃层一表面上依次形成驱动层和发光层；
    在所述第一超薄玻璃层的另一相对表面上形成触控组件；
    在所述第二超薄玻璃层的一表面上形成偏光组件；
    将所述偏光组件层叠于所述发光层。
  12. 根据权利要求11所述的方法，其特征在于，所述在所述第二超薄玻璃层的一表面上形成偏光组件之后，还包括：
    在所述第二超薄玻璃层远离所述偏光组件的一面形成覆盖膜。
  13. 一种柔性显示模组的制作方法，其特征在于，包括：
    提供第一超薄玻璃层、第二超薄玻璃层及柔性显示面板，所述柔性显示面板包括驱动层，发光层及柔性基底，所述驱动层层叠于所述发光层及柔性基底之间；
    在所述第一超薄玻璃层的一表面上形成触控组件；
    将所述第一超薄玻璃层或所述触控组件层叠于所述柔性基底；
    在所述第二超薄玻璃层的一表面上形成偏光组件；
    将所述偏光组件层叠于所述发光层。
  14. 根据权利要求13所述的方法，其特征在于，所述在所述第二超薄玻璃层的一表面上形成偏光组件之后，还包括：
    在所述第二超薄玻璃层远离所述偏光组件的一面形成覆盖膜。
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