CN113383297A - Flexible display module, manufacturing method thereof and electronic equipment - Google Patents
Flexible display module, manufacturing method thereof and electronic equipment Download PDFInfo
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- CN113383297A CN113383297A CN201980090085.8A CN201980090085A CN113383297A CN 113383297 A CN113383297 A CN 113383297A CN 201980090085 A CN201980090085 A CN 201980090085A CN 113383297 A CN113383297 A CN 113383297A
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- G06—COMPUTING; CALCULATING OR 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
Abstract
A flexible display module and a manufacturing method thereof, and an electronic device, wherein the flexible display module comprises a flexible display panel (20 or 20a), an ultrathin touch structure (40) and an ultrathin polarization structure (60 or 60a), the ultrathin touch structure (40) is laminated on one surface of the flexible display panel (20 or 20a), and the ultrathin touch structure (40) has a bending characteristic and a preset modulus; an ultra-thin polarizing structure (60 or 60a) is laminated on the opposite surface of the flexible display panel (20 or 20a), the ultra-thin polarizing structure (60 or 60a) having a bending characteristic and a predetermined modulus. The ultrathin touch control structure (40) with the bending characteristic and the preset modulus and the ultrathin polarization structure (60 or 60a) are respectively laminated on the two opposite surfaces of the flexible display panel (20 or 20a), so that the flexible display module has the flexibility and the preset hardness.
Description
The embodiment of the application relates to the technical field of display, in particular to a flexible display module, a manufacturing method of the flexible display module and electronic equipment.
With the progress of science and technology and the development of society, the flexible display screen gradually comes into the visual field of consumers, and the flexible display screen brings brand-new user experience to the consumers while bringing convenience to the life of the consumers.
However, it is difficult for the currently developed flexible display to have the hardness and the drop resistance of the conventional hard screen and also have the good bending property, because the properties of hardness, drop resistance and the like are in an opposite relationship with the bending property, and the hardness and the drop resistance and the like are inevitably sacrificed when the flexible display has the good bending property. Therefore, how to solve the problem that the flexible display screen has the hardness characteristic of the traditional hard screen cover plate and has a good bending characteristic is the key direction of research on the flexible display screen.
Disclosure of Invention
The embodiment of the application aims to provide a flexible display module, a manufacturing method thereof and electronic equipment, and aims to solve the technical problems that a flexible display screen in the prior art cannot meet the requirements of hardness, falling resistance and good bending property at the same time.
The embodiment of the application solves the technical problem and provides the following technical scheme:
a flexible display module, comprising:
a flexible display panel;
the ultrathin touch structure is laminated on one surface of the flexible display panel and has a bending characteristic and a preset modulus; and
the display panel comprises an ultrathin polarized light structure, wherein the ultrathin polarized light structure is laminated on the other opposite surface of the flexible display panel, and the ultrathin polarized light structure has a bending characteristic and a preset modulus.
Optionally, the flexible display panel comprises a light emitting layer and a driving layer;
the driving layer and the light emitting layer are sequentially stacked on the ultrathin touch structure, and the ultrathin polarized light structure is stacked on the light emitting layer. Optionally, the ultrathin touch structure includes a first ultrathin glass layer and a touch component;
the touch control assembly is stacked on one surface of the first ultrathin glass layer, and the driving layer and the light emitting layer are sequentially stacked on the other opposite surface of the first ultrathin glass layer.
Optionally, 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 stacked on one surface of the flexible substrate;
the ultrathin touch structure is stacked on the other opposite surface of the flexible substrate.
Optionally, the ultra-thin touch structure comprises a first ultra-thin glass layer and a touch component,
the touch control assembly is stacked on the surface of the first ultrathin glass layer, and the touch control assembly and the first ultrathin glass layer are stacked on the surface of the flexible substrate respectively.
Optionally, the touch assembly includes a touch sensor and a functional film layer;
the touch sensor and the functional film layer take the first ultrathin glass layer as a bearing substrate, and the touch sensor and the functional film layer are respectively laminated on the first ultrathin glass layer.
Optionally, the ultrathin polarized structure includes a second ultrathin glass layer and a polarized light assembly, one surface of the polarized light assembly is stacked on the second ultrathin glass layer, and the other surface of the polarized light assembly is stacked on the surface of the flexible display panel away from the ultrathin touch structure.
Optionally, the polarizing component comprises a polarizing layer and a functional coating;
the polarizing layer and the functional coating both use the second ultrathin glass layer as a bearing substrate, and the functional coating and the polarizing layer are respectively and sequentially stacked on one surface, facing the flexible display panel, of the second ultrathin glass layer;
the polarizing layer is laminated on the flexible display panel.
Optionally, the ultrathin polarizing structure further comprises a cover film;
the cover film is laminated on the other surface, away from the flexible display panel, of the second ultrathin glass layer.
The embodiment of the application also provides the following technical scheme for solving the technical problems:
an electronic device, comprising: the flexible display module, the processor, the transceiver, the memory and the bus;
the flexible display module is connected to the bus so as to be connected with the processor, the transceiver and the memory through the bus.
The embodiment of the application also provides the following technical scheme for solving the technical problems:
a manufacturing method of a flexible display module comprises the following steps: providing a first ultra-thin glass layer and a second ultra-thin glass layer;
sequentially forming a driving layer and a light emitting layer on one surface of the first ultrathin glass layer;
forming a touch control assembly on the other opposite surface of the first ultrathin glass layer;
forming a polarizing component on one surface of the second ultrathin glass layer;
and laminating the polarizing component on the luminous layer.
Optionally, after the forming the polarization component on one surface of the second ultra-thin glass layer, the method further includes:
and forming a covering film on one surface of the second ultrathin glass layer far away from the polarizing component.
The embodiment of the application also provides the following technical scheme for solving the technical problems:
a manufacturing method of a flexible display module comprises the following steps: providing a first ultrathin glass layer, a second ultrathin glass layer and a flexible display panel, wherein the flexible display panel comprises a driving layer, a light emitting layer and a flexible substrate, and the driving layer is laminated between the light emitting layer and the flexible substrate;
forming a touch control assembly on one surface of the first ultrathin glass layer;
laminating the first ultra-thin glass layer or the touch component to the flexible substrate;
forming a polarizing component on one surface of the second ultrathin glass layer;
and laminating the polarizing component on the luminous layer.
Optionally, after the forming the polarization component on one surface of the second ultra-thin glass layer, the method further includes:
and forming a covering film on one surface of the second ultrathin glass layer far away from the polarizing component.
Compared with the prior art, in the flexible display module that this application embodiment provided, through will have the characteristic of buckling and predetermine the modulus ultra-thin touch-control structure with ultra-thin polarisation structure range upon range of respectively in flexible display panel's relative two sides flexible display panel has on the basis of the characteristic of buckling, because ultra-thin touch-control structure with ultra-thin section polarisation structure all has predetermines the modulus and the characteristic of buckling, thereby makes by ultra-thin touch-control structure, flexible display panel and the flexible display module that ultra-thin polarisation structure constitutes jointly both has the bendability, has predetermined hardness simultaneously, and then has improved flexible screen roughness and resilience, has avoided the in-process of buckling simultaneously, the phenomenon of fold appears in the flexible display module surface.
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the structures shown in the drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a flexible display module according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a flexible display module according to another embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of an ultra-thin touch structure of the flexible display module shown in fig. 1;
FIG. 4 is a schematic structural diagram of an ultra-thin polarization structure of the flexible display module shown in FIG. 1;
fig. 5 is a schematic structural diagram of a flexible display module according to yet another embodiment of the present disclosure;
FIG. 6 is a schematic structural diagram of an ultra-thin polarization structure of the flexible display module shown in FIG. 5;
FIG. 7 is a schematic structural diagram of a flexible display module according to still another embodiment of the present disclosure;
FIG. 8 is a flowchart illustrating a method for manufacturing a flexible display module according to an embodiment of the present disclosure;
fig. 9 is a flowchart of a method for manufacturing a flexible display module according to another embodiment of the present disclosure.
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. If in the embodiments of the present application there is a description referring to "first", "second", etc., the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.
An embodiment of the present application provides a flexible display module, including a flexible substrate and a light emitting device layer on the flexible substrate, the flexible substrate may include a plastic material, and the plastic material may be an organic material selected from the group consisting of: 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., and in general, Organic Light Emitting Diodes (OLEDs) may be included in the light emitting device layer, but are not limited thereto; and the thin film layer is positioned on the light-emitting device layer, is usually a composite layer of polyethylene terephthalate (PET) and a glue material layer, can play a role in compensating water and oxygen barrier of the light-emitting device layer, and 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 μm.
In order to eliminate the influence of ambient light and improve the contrast, the flexible display module further comprises a Polarizer (POL) attached to the thin film layer. The polarizer generally includes a protective film layer, 1/4 lambda plate, and a polarizing functional sheet layer. The material of the protective film layer can be pressure-sensitive adhesive (PSA), which is beneficial for the polarizer to be directly attached to the film layer; the 1/4 lambda plate is attached above the protective film layer; the polarizing function sheet layer generally includes a most central PVA layer (polyvinyl alcohol layer) and a protective layer having TAC layers (triacetyl cellulose layers) as upper and lower layers, and an adhesive layer bonding the polarizing function sheet layer and the 1/4 λ plate, which may also be, but not limited to, a pressure sensitive adhesive layer.
Further, the flexible display module further comprises a touch control functional layer (TP), a cover plate (CG), a first adhesive layer and a second adhesive layer, wherein the first adhesive layer is used for adhering the polaroid and the touch control functional layer, the second adhesive layer is used for adhering the touch control functional layer and the cover plate, the first adhesive layer and the second adhesive layer can be optical transparent adhesive layers (OCA), the thicknesses of the first adhesive layer and the second adhesive layer are respectively about μm, the thickness of the touch control functional layer is about 50 μm, and the thickness of the cover plate is about 30 μm and is a hardened PI coating.
The inventor researches and discovers that in order to realize the bending property, the flexible display module mainly comprises a film material, and the film material flexible display module is difficult to have the properties of falling resistance, good hardness and the like because the prepared material has stronger strength to meet the requirements of good hardness and falling resistance, and the prepared flexible display module cannot have the properties of falling resistance, good hardness and the like because the film material cannot be strengthened and is soft (the modulus is low).
Meanwhile, the normal temperature modulus of the film material, particularly the adhesive material, of the flexible display module is only dozens to hundreds of kpa, the bending property is good, but the restorability is poor (needs a certain time to recover), and the smaller the bending radius is, the poorer the restorability is, and finally, the technical problems that the flatness of the flexible display module is poor, the surface of the flexible display module is wrinkled and the like are caused.
The inventor researches and discovers that the polaroid, the touch control functional layer and the cover plate in the flexible display module are stacked in an attaching mode through the adhesive glue layer, the multilayer adhesive glue layer is involved, the manufacturing method of the flexible display module is complex, the number of the film layers of the flexible display module is large, the thickness of the flexible display module is thick, the total thickness of the flexible display module is about 500 mu m, and the phenomenon of film layer separation or splitting is easy to occur in the process of bending the flexible display module, so that the flexible display module fails.
Referring to fig. 1, in order to solve the above technical problem, an embodiment of the present invention provides a flexible display module 100 including a flexible display panel 20, an ultra-thin touch structure 40, and an ultra-thin polarization structure 60.
The flexible display panel 20 may be a liquid crystal display panel (TFT-LCD) or an OLED (Organic Light-Emitting Diode) display panel. The flexible display panel 20 is used for emitting light, for example, when the flexible display panel 20 is a liquid crystal display panel, the backlight source can cause the liquid crystal pixel units to form images, and the liquid crystal display panel is caused to emit light, wherein the emitted light passes through the gaps between the liquid crystal pixel units and is emitted to the external environment of the liquid crystal display panel with the backlight source as a starting point. For another example, when the flexible display panel 20 is an OLED display panel, the light emitting layer formed by a plurality of OLED light emitting units in the OLED display panel generates the emission light, wherein the emission light passes through the gap between each OLED pixel unit and emits to the external environment of the display panel 20 with the light emitting layer as the starting point of the light source.
The ultra-thin touch structure 40 is used for sensing a touch operation of a user. For example, when the user touches the flexible display module 100, due to an electric field of a human body, a coupling capacitor is formed between the touch part of the user and the working surface of the ultra-thin touch structure 40, and since the working surface is connected with a high-frequency signal, a small current is absorbed by the touch part and flows out from the electrodes at the four corners of the ultra-thin touch structure 40, and the position of the touch part of the user is obtained by precisely calculating the ratio of the four currents, so as to respond to the related touch of the user for operation.
In order to make the flexible display module 100 have the characteristics of being bendable and high in restorability, the ultra-thin touch structure 40 is laminated on one surface of the flexible display panel 20; the ultra-thin touch structure 40 has a bendable characteristic and a predetermined modulus.
The flexible display module 100 cannot have the characteristics of being bendable and high in restorability due to the fact that the preset modulus is too large or too small, and the bending characteristic of the flexible display module 100 is poor due to the fact that the ultrathin touch structure 40 is too high in hardness if the preset modulus is too large; if the predetermined modulus is too small, the flexible display module 100 may have poor restorability (requiring a certain time to recover), and thus the flexible display module 100 may have poor flatness and surface wrinkles.
Since the preset modulus directly affects the recovery and bending characteristics, in order to achieve better recovery and bending characteristics at the same time, the range of the preset modulus of the ultra-thin touch structure 40 is set to be 20Gpa to 50 Gpa.
The ultra-thin polarization structure 60 is used for eliminating the influence of ambient light on the flexible display module 100 and improving the contrast ratio of the flexible display module.
In order to further improve the bending and recovery characteristics of the flexible display module 100, the ultra-thin polarizing structure 60 is laminated on the other surface of the flexible display panel 20; the ultra-thin polarized light structure 60 has a bendable characteristic and a predetermined modulus.
Since the preset modulus directly affects the recovery and bending characteristics, in order to achieve better recovery and bending characteristics at the same time, the range of the preset modulus of the ultra-thin polarization structure 60 is set to be 20Gpa to 50 Gpa.
In this embodiment, will have the characteristic of buckling and predetermine the modulus ultra-thin touch structure 40 with ultra-thin polarisation structure 60 range upon range of respectively in flexible display panel 20's two relative surfaces flexible display panel 20 has the basis of the characteristic of buckling, because ultra-thin touch structure 40 with ultra-thin polarisation structure 60 all has predetermine the modulus and the characteristic of buckling, thereby makes by ultra-thin touch structure 40, flexible display panel 20 and flexible display module 100 that ultra-thin polarisation structure 60 constitutes jointly has the bendability simultaneously and predetermines the hardness, and then has improved flexible display module 100's roughness and resilience, has avoided the in-process of buckling simultaneously, the phenomenon of fold appears in flexible display module 100 surface.
In addition, in the process of manufacturing the flexible display module 100, only the ultrathin touch structure 40 and the ultrathin polarized structure 60 need to be stacked on the flexible display panel 20 respectively, so that the manufacturing method of the conventional flexible display module 100 is optimized, the number and thickness of the film layers of the conventional flexible display module 100 are reduced, the phenomenon of film layer separation or splitting is avoided easily occurring in the process of bending the flexible display module 100, and the service life of the flexible display module 100 is prolonged.
Referring to fig. 2 and fig. 3, in order to make the ultra-thin touch structure 40 have the characteristics of being bendable and having high restorability, in the present embodiment, the ultra-thin touch structure 40 includes a first ultra-thin glass layer 42 and a touch element 44, the first ultra-thin glass layer 42 is laminated on the flexible display panel 20, and the touch element 44 is laminated on the first ultra-thin glass layer 42.
The first ultra-thin glass layer 42 has an ultra-thin characteristic, and the first ultra-thin glass layer 42 may be alkali-containing ultra-thin glass and alkali-free ultra-thin glass, and specifically, the alkali-containing ultra-thin glass may be soda-lime-silica glass or aluminosilicate glass. The alkali-free ultra-thin glass may be a borate glass.
In order to provide the first ultra-thin glass layer 42 with ultra-thin characteristics, the first ultra-thin glass layer 42 needs to be thinned (etched) and strengthened (ion-exchanged) to meet the requirement of ultra-thin characteristics, the thickness of the first ultra-thin glass layer 42 may be in a range of 10 μm to 100 μm, and preferably, the thickness of the first ultra-thin glass layer 42 is in a range of 50 μm to 75 μm.
In order to provide the first ultra-thin glass layer 42 with bendability, it may have a high degree of stiffness and/or rigidity to satisfy the properties of drop resistance and recovery. The surface hardness of the first ultra-thin glass layer 42 is in a range of 3H to 9H, preferably the surface hardness of the first ultra-thin glass layer 42 is in a range of 4H to 7H, the young's modulus (E) of the first ultra-thin glass layer 42 is in a range of 10GPa to 100GPa, and preferably the young's modulus (E) of the first ultra-thin glass layer 42 is in a range of 50GPa to 80 GPa.
The following is a concrete implementation or manufacturing process, taking aluminosilicate ultrathin glass as an example for explanation:
the aluminosilicate ultrathin glass comprises the following raw materials in percentage by weight: 60 parts of silicon oxide, 10 parts of aluminum oxide, 11 parts of sodium oxide and 3 parts of magnesium oxide;
the preparation method of the aluminosilicate ultrathin glass comprises the following steps:
1) melting raw materials: directly adding the raw materials of the aluminosilicate ultrathin glass into a melting furnace at about 1300 ℃ to form molten glass;
2) clarifying molten glass: raising the temperature to 1400-1500 ℃ to form glass liquid, and discharging visible bubbles and dissolved gas in the glass liquid;
3) homogenizing molten glass: the glass is kept at high temperature (for example, 1200 ℃ C. and 1300 ℃ C.) for a long time, strips in the glass liquid are eliminated, and homogenized glass liquid is formed;
4) cooling molten glass: uniformly cooling the clarified and homogenized molten glass, and forming glass;
5) treating the aluminosilicate ultrathin glass prepared in the step 4) by adopting an ion exchange methodThe specific treatment steps are as follows: ultrasonic cleaning and scrubbing are carried out on glass, thinning (etching) is carried out on aluminosilicate ultrathin glass, then preheating treatment is carried out at 200-300 ℃, and then the aluminosilicate ultrathin glass is immersed into melting KNO at 450 DEG C3Performing ion exchange treatment. And finally forming the aluminosilicate ultrathin glass.
In this embodiment, since the first ultra-thin glass layer 42 has an ultra-thin characteristic, the thickness range of the first ultra-thin glass layer 42 may be only 50 μm to 75 μm, so that the thickness of the ultra-thin touch structure 40 formed by the first ultra-thin glass layer 42 and the touch component 44 is smaller, and the thickness of the flexible display module 100 is reduced, so that the flexible display module more conforms to the aesthetic sense of a user, and user experience is improved.
The first ultra-thin glass layer 42 has bendability and higher hardness and/or rigidity, so that the ultra-thin touch structure 40 composed of the first ultra-thin glass layer 42 and the touch component 44 has bendability and higher hardness and/or rigidity, and further improves the flatness and restorability of the flexible display module 100, and avoids the phenomenon that the surface of the flexible display module 100 is wrinkled in the bending process.
The touch assembly 44 includes a touch sensor 442 and a functional film 444, and the touch sensor 442 and the functional film 444 are respectively laminated on the surface of the first ultra-thin glass layer 42 away from the flexible display panel 20 in sequence, with the first ultra-thin glass layer 42 as a carrier substrate.
The flexible substrate of the flexible film is one of optical transparent substrates of PET, PI and COP with light transmittance of more than or equal to 90%. The sheet resistance of the nano conductive network is 50-100 omega. The sheet resistance of the nano conductive network is preferably 50 omega. The thickness of the flexible film is 5-50 um. The thickness of the flexible film is preferably 23 um. 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 3-5 um. The thickness of the silver paste is preferably 4 um. The thickness of the light-cured glue layer is 2-20 um. The thickness of the light-curing glue layer is preferably 10 um. The visible light transmittance of the ultrathin flexible double-layer touch screen sensor is 85% -95%, the thickness of the sensor is 10-100um, preferably 50um, the bending radius is 1-6mm, preferably 2mm, and the bending frequency is more than ten thousand.
In this embodiment, the nano conductive network is embedded and fixed in the first photo-curing adhesive layer and the second photo-curing adhesive layer, which plays a critical role in stability and reliability of the conductive network. Meanwhile, the first photo-curing adhesive layer and the second photo-curing adhesive layer can be very thin, so that the bending and folding performance of the touch assembly 44 can be improved.
And the touch sensor 442 is not bonded by optical cement, so that bonding layers are reduced, the lengthy bonding process of the optical cement is simplified, and the manufacturing cost is reduced. Meanwhile, due to the fact that the optical adhesive layer is not arranged, the thickness of the whole double-sided touch sensor 442 can be reduced to the greatest extent, and bending and folding performances of the touch sensor 442 are improved.
The functional film 444 comprises one or more of a transparent support layer, a fingerprint touch layer, a bearing substrate and the like. The transparent supporting layer, the fingerprint touch layer and the carrying substrate are sequentially stacked on the surface of the touch sensor 442 away from the flexible display panel 20.
The transparent supporting layer has preset hardness and rigidity, and is used for supporting the flexible display panel 20, for example, when the pressing object presses the fingerprint acquisition area of the flexible display panel 20, because the transparent supporting layer has 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, so as to support the fingerprint acquisition area, eliminate adverse effects of deformation of the fingerprint acquisition area on fingerprint imaging quality, and improve fingerprint imaging quality.
The transparent supporting layer is formed by transparent materials such as transparent glass, an acrylic organic thin film (PMMA) and the like, and the transparent supporting layer can be penetrated by visible light, infrared light or ultraviolet light.
The fingerprint touch layer is used for fingerprint identification operation and comprises a circuit substrate, a support, a lens, a fingerprint chip, an optical 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 with the circuit substrate; the optical filter is arranged on the fingerprint chip; the micro-lenses (micro-lenses) are disposed on the optical filter. Because the micro lens is attached to the surface of the optical filter, the optical filter can be designed to be smaller, and the cost is reduced.
In some embodiments, the fingerprint touch layer may have other structures or any types as long as the fingerprint touch layer can perform a fingerprint identification operation.
The bearing substrate is used as a substrate for bearing the flexible display panel 20 and the ultrathin polarized structure 60, the bearing substrate is made of a flexible material, and the bearing substrate can be made of resins such as Polyimide (PI), Polycarbonate (PC), polyethylene glycol terephthalate (PET), polyether sulfone (PES), polyethylene film (PEN), Fiber Reinforced Plastics (FRP) and the like.
The flexible display panel 20 includes a light emitting layer 22 and a driving layer 24, the driving layer 24 is used for driving the light emitting layer 22, the driving layer 24 is stacked on the ultra-thin touch structure 40, the light emitting layer 22 is stacked on the driving layer 24, and the ultra-thin polarization structure 60 is stacked on the light emitting layer 22.
In order to optimize the manufacturing method of the conventional flexible display module and reduce the number of film layers and thickness of the conventional flexible display module, in this embodiment, the driving layer 24 and the light-emitting layer 22 both use the first ultra-thin glass layer 42 in the ultra-thin touch structure 40 as a substrate, the driving layer 24 and the light-emitting layer 22 are directly and sequentially formed on one surface of the first ultra-thin glass layer 42, the touch component 44 is directly formed on the other surface opposite to the first ultra-thin glass layer 42, and the first ultra-thin glass layer 42 can be simultaneously used as a bearing substrate of the flexible display panel 20 and the touch component 44, so that the number of film layers and thickness of the conventional flexible display module are reduced, and further, the phenomenon that the film layers are separated or split easily occurs in the process of bending the flexible display module 100 is avoided; meanwhile, the thickness of the flexible display module 100 is reduced, and the user experience is improved.
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 stacked between the cathode and the anode to generate the emission light. The organic functional layer is prepared by doping a host material with an organic luminescent material in a certain proportion. Under the condition of applying an external voltage, holes of the anode migrate to the organic functional layer, electrons of the cathode migrate to the organic functional layer, the electrons and the holes meet in the organic functional layer to form electron-hole pairs, the electrons transit from an excited state to a ground state, and energy is released in the form of radiation photons, so that electroluminescence is generated. The organic luminescent material can be selected from organic micromolecular materials or organic polymer materials to realize electroluminescence.
The driving layer 24 is disposed on a side 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 prior art means and will not be described herein again.
Referring to fig. 2 and fig. 4, in order to make the ultra-thin polarization structure 60 have the characteristics of high bendability and high recovery, in the present embodiment, the ultra-thin polarization structure 60 includes a second ultra-thin glass layer 62 and a polarization component 64, one surface of the polarization component 64 is laminated on the second ultra-thin glass layer 62, and the opposite surface of the polarization component 64 is laminated on the surface of the flexible display panel 20 away from the ultra-thin touch structure 40.
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 are not described herein again.
In this embodiment, because the second ultra-thin glass layer 62 has an ultra-thin characteristic, the thickness of the ultra-thin polarization structure 60 composed of the second ultra-thin glass layer 62 and the polarization assembly 64 is smaller, and the thickness of the flexible display module 100 is further reduced, so that the flexible display module more conforms to the aesthetic sense of a user, and the user experience is improved.
Meanwhile, the second ultra-thin glass layer 62 has higher hardness and/or rigidity on the basis of having the flexibility, so that the ultra-thin polarizing structure 60 composed of the second ultra-thin glass layer 62 and the polarizing component 64 has the flexibility and higher hardness and/or rigidity at the same time, the flatness and the restorability of the flexible display module 100 are further improved, and the phenomenon that wrinkles appear on the surface of the flexible display module 100 in the bending process is avoided.
The polarization assembly 64 comprises a polarization layer 642 and a functional coating 644, the functional coating 644 and the polarization layer 642 take the second ultrathin glass layer 62 as a bearing substrate, and are sequentially stacked on the surface of the second ultrathin glass layer 62 facing the flexible display panel 20, respectively, and the polarization layer 642 is further stacked on the functional coating 644.
The polarizing layer 642 is a circular polarizing layer, and is used for converting the emission optics generated by the light emitting layer 22 from unpolarized light to polarized light, and simultaneously preventing the reflected light of the external light from passing through. In this embodiment, the circular polarizer includes a linear polarizer and a quarter-wave plate, 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 hardening layer, an anti-fingerprint layer, an anti-glare layer, and an anti-reflection layer. When the functional coating 644 comprises a plurality of coatings, the stacking sequence of the plurality of coatings can be set according to the needs of actual conditions, and is not limited herein. Since the different types of coatings are different in material and corresponding applications, in practical applications, one or more of the coatings may be selected to be applied to the surface of the second ultra-thin glass layer 62 for different functions.
Specifically, the ink layer is used to provide a desired appearance color to the flexible display module 100, and the appearance color of the ink layer may be red, orange, yellow, green, cyan, blue, violet, pink, white, and the like. The ink layer may be formed by a Screen Printing process, and in this embodiment, the material of the ink layer is black ink prepared from epoxy resin.
Specifically, the hardened layer is used to protect the ultra-thin polarization structure 60 and improve the scratch and abrasion resistance of the flexible display module 100, and the hardened layer may be made of a metal nitride, a pure metal, or metal carbon, or any combination of a metal, a nitride, and carbon, or a so-called DLC-layer (diamond-like carbon layer).
Specifically, anti fingerprint layer is used for promoting flexible display module assembly 100's anti-soil performance, anti fingerprint layer can reduce adhesion such as fingerprint, greasy dirt, dust, water on flexible display module assembly 100. The anti-fingerprint layer can be made of organic fluoride.
Specifically, the antiglare layer is used to control light scattering/light reflection to suppress deterioration in visibility of the image display device, and the material of the antiglare layer may be a second binder of a second (meth) acrylate-based crosslinked polymer, and at least two kinds of light-transmitting fine particles having a submicron (sub μm) order dispersed on the second binder.
Specifically, the anti-reflection layer is used for reducing reflection of an image and reflection of light by light scattering or optical interference, and the material of the anti-reflection layer may be a polyvinyl alcohol (PVA), but not limited thereto, and may also be replaced by adding a pigment to a liquid crystal so as to further reduce the thickness. The thickness of the anti-reflection layer ranges from 3um to 50um, but not limited thereto.
In some embodiments, the functional coating 644 can also be a transmission enhancing layer, a light shield layer, and a protective layer, among others. One or more of these layers may be optionally applied to the surface of the second ultra-thin glass layer 62, depending on the desired function.
Referring to fig. 5 and fig. 6 together, a flexible display module 100a according to another embodiment of the present disclosure is substantially the same as the flexible display module 100 shown in fig. 1, except that the ultra-thin polarization structure 60a of the flexible display module 100a further includes a cover film 66, the cover film 66 is 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 together form a flexible cover plate of the flexible display module 100 a.
In this embodiment, the second ultra-thin glass layer 62 and the cover film 66 both form a flexible cover plate of the flexible display module 100a, and the second ultra-thin glass layer 62 also serves as a carrier substrate of the polarizer assembly 64, so that the functional coating 644 and the polarizing layer 642 of the polarizer assembly 64 are sequentially stacked on the surface of the second ultra-thin glass layer 62. Therefore, through the arrangement of the second ultrathin glass layer 62, the manufacturing method of the traditional flexible display module is optimized, the number of film layers and the thickness of the traditional flexible display module 100 are reduced, the phenomenon that the film layers are separated or split easily in the bending process of the flexible display module 100a is avoided, and the service life of the flexible display module 100a is prolonged.
In the flexible cover sheet composed of the second ultra-thin glass layer 62 and the cover film 66, the cover film 66 is used to increase the hardness of the flexible cover sheet. Since the cover film 66 is formed on the second ultra-thin glass layer 62 and faces a user, the cover film 66 has scratch and abrasion resistance while having a predetermined hardness. Further, when the cover film 66 is made of an organic material, the cover film 66 can have a bending property, and the flexibility of the flexible cover sheet can be further improved.
In this embodiment, due to the ultra-thin characteristic of the second ultra-thin glass layer 62, the flexible cover plate has a good bending characteristic, and the cover film 66 improves the hardness of the flexible cover plate while not affecting the bending characteristic of the flexible cover plate, so that the flexible cover plate formed by the second ultra-thin glass layer 62 and the cover film 66 has the good bending characteristic and also has the characteristics of hardness, falling resistance and the like, thereby satisfying the requirements of the flexible display module 100a on the flexible cover plate.
On the basis of ensuring that the flexible cover plate has certain hardness, in order to enable the flexible cover plate to have better bending characteristics, the thickness of the flexible cover plate formed by the second ultra-thin glass layer 62 and the covering film 66 is in a range of 10 μm to 200 μm, and preferably, the thickness of the flexible cover plate is in a range of 40 μm to 100 μm.
The cover film 66 may be PI (polyimide), CPI (colorless transparent polyimide), PET (polyethylene terephthalate), PMMA (polymethyl methacrylate), PC (Polycarbonate), or the like.
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, the cover film 66 may be formed on the second ultra-thin glass layer 62 by a Roll-to-Roll (Roll) process such as coating or printing. The surface hardness of the cover film 66 is in a range of 1H to 5H, and preferably, the surface hardness of the cover film 66 is in a range of 3H to 4H.
In order to provide the cover film 66 with a certain bending property and further improve the flexibility of the flexible cover sheet, the Young's modulus (E) of the cover film 66 is in a range of 2Gpa to 10Gpa, preferably, the Young's modulus (E) of the cover film 66 is in a range of 5 to 7Gpa, the thickness of the cover film 66 is in a range of 10 to 100 μm, and the thickness of the cover film 66 is in a range of 20 to 60 μm.
Referring to fig. 7, a flexible display module 100b according to another embodiment of the present application is substantially 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 further includes a flexible substrate 26, the driving layer 24 and the light emitting layer 22 are formed on the flexible substrate 26 directly and sequentially, and the flexible substrate 26 is used as a substrate for the driving layer 24 and the light emitting layer 22. The ultra-thin touch structure 40 and the ultra-thin polarization structure 60 are respectively adhered to two opposite sides of the flexible display panel 20a, and specifically, the touch assembly 44 and the first ultra-thin glass layer 42 are respectively laminated on the surface of the flexible substrate 26. The touch-sensing component 44 can be laminated on the surface of the flexible substrate 26, and the first ultra-thin glass layer 42 can also be laminated on the surface of the flexible substrate 26; the flexible substrate 26 is laminated to the first ultra-thin glass layer 42, and the polarizing layer 642 is laminated to the light-emitting layer 22. In the present embodiment, since 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, so as to increase the distance between the driving layer 24 and the touch sensor 442, the influence of the electrical property of the driving layer 24 on the touch sensor 442 can be reduced.
The flexible substrate 26 may be made of Polyimide (PI), Polycarbonate (PC), polyethylene glycol terephthalate (PET), Polyethersulfone (PES), polyethylene film (PEN), Fiber Reinforced Plastic (FRP), or other resins.
The term "adhere" in any of the above embodiments means to adhere by an optical adhesive or other adhesive.
The optical cement is OCA (Optically Clear Adhesive), and the OCA cement has the characteristics of being colorless and transparent, having the light transmittance of more than 90 percent, having good cementing strength, being capable of being cured at room temperature or intermediate temperature, having small curing shrinkage and the like.
In any of the above embodiments, "forming" refers to deposition by physical or chemical means such as spin coating, printing, ink-jetting, or sputtering.
Referring to fig. 8, the present application provides a method for manufacturing a flexible display module 100 according to an embodiment of the present application, it should be noted that the above explanation of the embodiment of the flexible display module 100 is also applicable to the method for manufacturing the flexible display module 100 according to the embodiment, and is not detailed herein to avoid redundancy. It should be noted that, in the following embodiments, a certain sequence does not necessarily exist between the following steps, and it can be understood by those skilled in the art from the description of the embodiments of the present application that, in different embodiments, the following steps may have different execution sequences, that is, may be executed in parallel, may also be executed interchangeably, and the like; in various embodiments, some of the steps described below may 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.
Specifically, the first ultrathin glass layer and the second ultrathin glass layer both have ultrathin characteristics, and the first ultrathin glass layer and the second ultrathin glass layer may be alkali-containing ultrathin glass and alkali-free ultrathin glass, and the alkali-containing ultrathin glass may be soda-lime-silica glass or aluminosilicate glass. The alkali-free ultra-thin glass may be a borate glass.
The first ultra-thin glass layer and the second ultra-thin glass layer are both bendable while having relatively high hardness and/or stiffness.
And step S82, sequentially forming a driving layer and a light-emitting layer on one surface of the first ultra-thin glass layer. Specifically, the driving layer 24 and the light emitting layer 22 are formed on one surface of the first ultra-thin glass layer 42 by using a Plasma Enhanced Chemical Vapor Deposition (PECVD), a Low Pressure Chemical Vapor Deposition (LPCVD), an Atmospheric Pressure Chemical Vapor Deposition (APCVD), an electron cyclotron Resonance Chemical Vapor Deposition (ECR-CVD), a sputtering and spin coating, and the driving layer 24 and the light emitting layer 22 form the flexible display panel 20.
And step S83, forming a touch component on the other opposite surface of the first ultrathin glass layer.
Specifically, the touch assembly 44 includes a touch sensor 442 and a functional film layer 444, the touch sensor 442 and the functional film layer 444 are sequentially formed on the surface of the first ultra-thin glass layer 42 away from the flexible display panel 20, and the touch assembly 44 and the first ultra-thin glass layer 42 form the ultra-thin touch structure 40.
And step S84, forming a polarizing component on one surface of the second ultrathin glass layer.
Specifically, the light polarizing assembly 64 includes a light polarizing layer 642 and a functional coating 644, and the functional coating 644 and the light polarizing layer 642 are sequentially formed on the surface of the second ultra-thin glass layer 62, respectively. The polarizing component 64 and the second ultra-thin glass layer 62 constitute an ultra-thin polarizing structure 60.
In some embodiments, after the step S84, the method further includes:
and forming a covering film on one surface of the second ultrathin glass layer far away from the polarizing component.
Specifically, a cover film is formed on a side of the second ultra-thin glass layer 42 away from the polarization assembly by sputtering, spin coating or spray coating, 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 100 a.
Specifically, the cover film 66 may be PI (polyimide), CPI (colorless transparent polyimide), PET (polyethylene terephthalate), PMMA (polymethyl methacrylate), or PC (Polycarbonate). Step S85, the polarizing component is laminated on the light-emitting layer.
Specifically, the polarization assembly 64 of the ultra-thin polarization structure 60 is attached to a side of the flexible display panel 20 away from the ultra-thin touch structure 40, that is, attached to the light-emitting layer 22, through an optical adhesive.
Referring to fig. 9, another embodiment of the present application provides a method for manufacturing a flexible display module 100b, and it should be noted that the above explanation of the embodiment of the flexible display module 100 is also applicable to the method for manufacturing the flexible display module 100b of this embodiment, and is not detailed here to avoid redundancy. It should be noted that, in the following embodiments, a certain sequence does not necessarily exist between the following steps, and it can be understood by those skilled in the art from the description of the embodiments of the present application that, in different embodiments, the following steps may have different execution sequences, that is, may be executed in parallel, may also be executed interchangeably, and the like; in various embodiments, some of the steps described below may be omitted or replaced.
The manufacturing method of the flexible display module 100b includes:
step S91, providing a first ultrathin glass layer, a second ultrathin glass layer and a flexible display panel, wherein the flexible display panel comprises a driving layer 24, a light-emitting layer 22 and a flexible substrate 26, and the driving layer 24 is laminated between the light-emitting layer 22 and the flexible substrate 26.
Step S92, forming a touch component on one surface of the first ultra-thin glass layer.
Specifically, the touch assembly 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.
And S93, laminating the first ultrathin glass layer or the touch assembly on the flexible substrate.
Specifically, the first ultra-thin glass layer 42 or touch component 44 is attached to the flexible substrate 26 by an optical adhesive.
And step S94, forming a polarizing component on one surface of the second ultrathin glass layer.
Specifically, the light polarizing assembly 64 includes a light polarizing layer 642 and a functional coating 644, and the light 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 polarization assembly 64 together form the ultra-thin polarization structure 60.
In some embodiments, after the step S94, the method further includes:
and forming a covering film on one surface of the second ultrathin glass layer far away from the polarizing component.
Specifically, a cover film is formed on one side of the second ultra-thin glass layer 42, which is far away from the polarizer assembly, by means of sputtering, spin coating or spray coating, and the cover film 66 and the second ultra-thin glass layer 42 constitute a flexible cover plate of the flexible display module 100 b. Step S95, the polarizing component is laminated on the light-emitting layer.
Specifically, the polarizing layer 642 of the polarizing assembly 64 is attached to the surface of the light-emitting layer 20 by an optical adhesive.
Another embodiment of the present application further provides an electronic device, which 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 comprises the flexible display module 100, 100a or 100b, a processor, a transceiver, a memory and a bus in any of the above embodiments.
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 may provide an input interface for an operator to operate through the input interface.
The transceiver is used for receiving and transmitting data with external equipment. The number of processors may be one or more. In some embodiments of the present application, the processor, memory, and transceiver may be connected by a bus or other means.
Wherein the memory stores program code therein. The processor is used to call program code stored in the memory for performing various operations.
It should be noted that the processor herein may be a single processing element or may be a collective term for a plurality of processing elements. For example, the Processing element may be a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits configured to implement embodiments of the present Application, such as: one or more microprocessors (digital signal processors, DSPs), or one or more Field Programmable Gate Arrays (FPGAs).
The memory may be a single storage device or a combination of multiple storage elements, and is used for storing executable program codes or parameters, data, and the like required by the running device of the application program. And the memory may include a Random Access Memory (RAM) or a non-volatile memory (non-volatile memory), such as a magnetic disk memory, Flash memory (Flash), etc.
The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (enhanced Industry Standard Architecture) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc.
Compared with the prior art, the electronic device of the present application provides a flexible display module 100, 100a or 100b, by laminating the ultra-thin touch structure 40 and the ultra-thin polarization structure 60 or 60a having bending characteristics and a predetermined modulus on two opposite sides of the flexible display panel 20 or 20a, respectively, on the basis that the flexible display panel 20 or 20a has bending characteristics, because the ultra-thin touch structure 40 and the ultra-thin polarization structure 60 or 60a both have the predetermined modulus and bending characteristics, so that the flexible display module 100, 100a or 100b composed of the ultra-thin touch structure 40, the flexible display panel 20 or 20a and the ultra-thin polarization structure 60 or 60a has both bending properties and predetermined hardness, thereby improving the flatness and restorability of the flexible display screen, and avoiding bending processes, the flexible display module 100, 100a or 100b has a wrinkled surface.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; within the context of the present application, where technical features in the above embodiments or in different embodiments can also be combined, the steps can be implemented in any order and there are many other variations of the different aspects of the present application as described above, which are not provided in detail for the sake of brevity; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (14)
- The utility model provides a flexible display module assembly which characterized in that includes:a flexible display panel;the ultrathin touch structure is laminated on one surface of the flexible display panel and has a bending characteristic and a preset modulus; andthe display panel comprises an ultrathin polarized light structure, wherein the ultrathin polarized light structure is laminated on the other opposite surface of the flexible display panel, and the ultrathin polarized light structure has a bending characteristic and a preset modulus.
- The flexible display module of claim 1,the flexible display panel comprises a light emitting layer and a driving layer;the driving layer and the light emitting layer are sequentially stacked on the ultrathin touch structure, and the ultrathin polarized light structure is stacked on the light emitting layer.
- The flexible display module of claim 2,the ultrathin touch structure comprises a first ultrathin glass layer and a touch component;the touch control assembly is stacked on one surface of the first ultrathin glass layer, and the driving layer and the light emitting layer are sequentially stacked on the other opposite surface of the first ultrathin glass layer.
- The flexible display module of claim 1,the flexible display panel comprises a light emitting layer, a driving layer and a flexible substrate, wherein the driving layer and the light emitting layer are sequentially laminated on one surface of the flexible substrate;the ultrathin touch structure is stacked on the other opposite surface of the flexible substrate.
- The flexible display module of claim 4,the ultrathin touch structure comprises a first ultrathin glass layer and a touch component,the touch control assembly is stacked on the surface of the first ultrathin glass layer, and the touch control assembly and the first ultrathin glass layer are stacked on the surface of the flexible substrate respectively.
- The flexible display module of claim 3 or 5,the touch control assembly comprises a touch control sensor and a functional film layer;the touch sensor and the functional film layer take the first ultrathin glass layer as a bearing substrate, and the touch sensor and the functional film layer are respectively laminated on the first ultrathin glass layer.
- The flexible display module of any one of claims 1 to 6,the ultrathin polarized light structure comprises a second ultrathin glass layer and a polarized light assembly, one surface of the polarized light assembly is laminated on the second ultrathin glass layer, and the other surface of the polarized light assembly is laminated on the surface, far away from the ultrathin touch control structure, of the flexible display panel.
- The flexible display module of claim 7,the polarizing component comprises a polarizing layer and a functional coating;the polarizing layer and the functional coating both use the second ultrathin glass layer as a bearing substrate, and the functional coating and the polarizing layer are respectively and sequentially stacked on one surface, facing the flexible display panel, of the second ultrathin glass layer;the polarizing layer is laminated on the flexible display panel.
- The flexible display module of claim 8,the ultrathin polarized light structure further comprises a covering film;the cover film is laminated on the other surface, away from the flexible display panel, of the second ultrathin glass layer.
- An electronic device, comprising: the flexible display module of any of claims 1-9, a processor, a transceiver, a memory, and a bus;the flexible display module is connected to the bus, and the flexible display module is respectively connected with the processor, the transceiver and the memory through the bus.
- A manufacturing method of a flexible display module is characterized by comprising the following steps:providing a first ultra-thin glass layer and a second ultra-thin glass layer;sequentially forming a driving layer and a light emitting layer on one surface of the first ultrathin glass layer;forming a touch control assembly on the other opposite surface of the first ultrathin glass layer;forming a polarizing component on one surface of the second ultrathin glass layer;and laminating the polarizing component on the luminous layer.
- The method of claim 11, further comprising, after forming the polarizing component on a surface of the second ultra-thin glass layer:and forming a covering film on one surface of the second ultrathin glass layer far away from the polarizing component.
- A manufacturing method of a flexible display module is characterized by comprising the following steps:providing a first ultrathin glass layer, a second ultrathin glass layer and a flexible display panel, wherein the flexible display panel comprises a driving layer, a light emitting layer and a flexible substrate, and the driving layer is laminated between the light emitting layer and the flexible substrate;forming a touch control assembly on one surface of the first ultrathin glass layer;laminating the first ultra-thin glass layer or the touch component to the flexible substrate;forming a polarizing component on one surface of the second ultrathin glass layer;and laminating the polarizing component on the luminous layer.
- The method of claim 13, further comprising, after forming the polarizing component on a surface of the second ultra-thin glass layer:and forming a covering film on one surface of the second ultrathin glass layer far away from the polarizing component.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2019/099674 WO2021022525A1 (en) | 2019-08-07 | 2019-08-07 | Flexible display module and manufacturing method therefor, and electronic device |
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| CN113383297A true CN113383297A (en) | 2021-09-10 |
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| CN113193154B (en) * | 2021-04-30 | 2023-04-07 | 合肥维信诺科技有限公司 | Flexible display panel, preparation method thereof and display device |
| CN113410270A (en) * | 2021-06-07 | 2021-09-17 | 合肥维信诺科技有限公司 | Cover plate, display panel and display device |
| CN113936558B (en) * | 2021-10-26 | 2023-06-27 | 武汉华星光电半导体显示技术有限公司 | Display module, preparation method thereof and display device |
| CN114078389A (en) * | 2021-11-12 | 2022-02-22 | 京东方科技集团股份有限公司 | Flexible display panel and display device |
| CN114220356A (en) * | 2022-01-06 | 2022-03-22 | 河北科技大学 | Flexible module of flexible screen and preparation method thereof |
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Application publication date: 20210910 |