CN110867465A - Flexible AMOLED display screen, crack repairing method thereof and flexible display device - Google Patents
Flexible AMOLED display screen, crack repairing method thereof and flexible display device Download PDFInfo
- Publication number
- CN110867465A CN110867465A CN201810988509.XA CN201810988509A CN110867465A CN 110867465 A CN110867465 A CN 110867465A CN 201810988509 A CN201810988509 A CN 201810988509A CN 110867465 A CN110867465 A CN 110867465A
- Authority
- CN
- China
- Prior art keywords
- layer
- display screen
- flexible
- repairing
- amoled display
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920001621 AMOLED Polymers 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000010410 layer Substances 0.000 claims description 139
- 239000003795 chemical substances by application Substances 0.000 claims description 64
- 238000000576 coating method Methods 0.000 claims description 34
- 239000011248 coating agent Substances 0.000 claims description 32
- 239000000463 material Substances 0.000 claims description 29
- 239000003094 microcapsule Substances 0.000 claims description 23
- 239000011241 protective layer Substances 0.000 claims description 23
- 239000003054 catalyst Substances 0.000 claims description 16
- -1 polydimethylsiloxane Polymers 0.000 claims description 13
- 229920001410 Microfiber Polymers 0.000 claims description 12
- 239000011159 matrix material Substances 0.000 claims description 12
- 239000003658 microfiber Substances 0.000 claims description 12
- 239000010408 film Substances 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 10
- 239000004593 Epoxy Substances 0.000 claims description 9
- 239000004814 polyurethane Substances 0.000 claims description 9
- 229920002635 polyurethane Polymers 0.000 claims description 9
- 229920001721 polyimide Polymers 0.000 claims description 8
- 229920001567 vinyl ester resin Polymers 0.000 claims description 8
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 6
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 6
- 230000000977 initiatory effect Effects 0.000 claims description 5
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 239000003999 initiator Substances 0.000 claims description 2
- 239000012934 organic peroxide initiator Substances 0.000 claims description 2
- 229920000058 polyacrylate Polymers 0.000 claims description 2
- 229920006267 polyester film Polymers 0.000 claims description 2
- 239000010409 thin film Substances 0.000 claims description 2
- 238000005253 cladding Methods 0.000 claims 1
- 238000002360 preparation method Methods 0.000 description 9
- 239000004642 Polyimide Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 239000005357 flat glass Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000004926 polymethyl methacrylate Substances 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920000620 organic polymer Polymers 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000012510 hollow fiber Substances 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000011112 polyethylene naphthalate Substances 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
- H10K59/88—Dummy elements, i.e. elements having non-functional features
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
- C08L63/10—Epoxy resins modified by unsaturated compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/562—Protection against mechanical damage
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
Abstract
The invention provides a flexible AMOLED display screen, a crack repairing method thereof and a flexible display device, wherein the flexible AMOLED display screen sequentially comprises a flexible driving back plate layer, an organic light emitting layer, a touch layer, a polarizing plate layer and a self-repairing layer from bottom to top.
Description
Technical Field
The invention belongs to the technical field of flexible display devices, and relates to a flexible AMOLED display screen, a crack repairing method thereof and a flexible display device.
Background
At present, the bottleneck of the flexible/foldable display product is not only the structure of the device, but also the flexible protective cover plate is one of the important factors restricting the development of the flexible/foldable display product. The flexible protective cover plate must have the characteristics of repeated bending, transparency, ultra-thinness and enough hardness. It is not easy to find a material that has these properties at the same time.
In order to meet the requirements of flexible screens for materials, Hard Coating (Hard Coating) materials have been proposed, and manufacturers have made Hard coatings on organic polymer materials to increase the surface hardness of the organic polymer materials. Hard coatings are used in flexible displays, and are required to meet both the high light transmission and surface hardness of glass and the flexibility and abrasion resistance required of flexible materials.
CN 104269499A discloses an AMOLED structure and a method for manufacturing the same, the AMOLED structure includes an AMOLED display module, a polarizer and a cover plate glass, the polarizer is bonded between the AMOELD display module and the cover plate glass, and the polarizer is provided with a printed pattern layer. The printing pattern layer is arranged on the polaroid, so that a delicate appearance display effect is brought to the AMOLED structure, the problems that the cover plate glass cannot be printed with patterns due to the adoption of toughened glass or a special-shaped surface and the printing yield is low are solved, and the problems of flexibility and wear resistance of the AMOLED structure are not improved.
CN 107742634 a discloses an AMOLED display screen, which includes a display panel and a touch panel, the display panel includes a glass substrate, a gate layer, a first protective layer, a data line layer, a second protective layer and a pixel electrode layer, which are bonded in sequence, an indium tin oxide ITO layer is further disposed between the glass substrate and the first protective layer, the ITO layer is connected with the gate layer, and an overlapping portion of the ITO layer and the pixel electrode layer forms a storage capacitor; the touch panel comprises two layers of transparent conductive films, an optical transparent adhesive layer sandwiched between the two layers of transparent conductive films, and a protective layer positioned on the outermost layer. Although a protective layer is provided in the structure, it does not have a preventive effect or a repairing effect on the occurrence of cracks or scratches.
CN 105590573 a discloses a repair structure and a repair method for line defects of an AMOLED display panel, in which conductive films in repair lines are correspondingly stacked and covered above test TFTs in a detection line of the AMOLED display panel and insulated from the test TFTs, and repair wires in the repair lines are crossed with all signal fanout lines and corresponding test lines in the detection line of the AMOLED display panel in an insulated manner, so that the repair lines are directly grafted on the detection line of the AMOLED display panel, and the repair lines with repair function can be introduced by using the existing layout of the detection line of the AMOLED display panel, but only line repair can be performed, and repair cannot be performed when cracks occur in the AMOLED display panel.
Therefore, in the field, it is expected that an AMOLED display screen with a self-repairing function can be developed, so that the crack can be repaired when the crack is generated, and the service life of the device is prolonged.
Disclosure of Invention
In view of the defects of the prior art, the present invention aims to provide a flexible AMOLED display screen, a crack repairing method thereof, and a flexible display device.
In order to achieve the purpose, the invention adopts the following technical scheme:
on one hand, the invention provides a flexible AMOLED display screen which sequentially comprises a flexible driving back plate layer, an organic light emitting layer, a touch layer, a polarizing plate layer and a self-repairing layer from bottom to top.
The self-repairing layer arranged on the polarizing plate layer of the flexible AMOLED display screen can play a self-repairing function when scratches or cracks are generated on the display screen, so that the original strength of the protective film layer is recovered to a great extent, and the service life of the display screen is prolonged.
Preferably, the raw materials for preparing the self-repairing layer comprise the following components in percentage by mass: 80-90% of matrix material, 10-20% of repairing agent microcapsule and/or repairing agent microfiber and 0.1-2% of catalyst.
In the invention, the matrix material is epoxy vinyl ester and/or polyurethane.
In the invention, the mass percentage of the base material in the self-repairing layer can be 80%, 81%, 81.5%, 82%, 82.5%, 83%, 84%, 85%, 86%, 87%, 88%, 89% or 90%.
Preferably, the repair agent microcapsule is obtained by coating the repair agent with a coating material.
Preferably, the repair agent is any one of or a combination of at least two of an epoxy prepolymer, Polydimethylsiloxane (PDMS), or Polydiethylsiloxane (PDES).
Preferably, the coating material is epoxy vinyl ester and/or polyurethane.
According to the invention, the self-repairing layer is obtained through the components, when the display screen cracks, the repairing agent in the repairing agent microcapsule or repairing agent microfiber is released, the repairing agent is in contact with the catalyst in the self-repairing layer, and under the initiation of an external condition, a polymerization reaction is carried out, the repairing agent is polymerized to form a high polymer, and the high polymer is connected with the base material, so that the crack is filled, and the self-repairing purpose is achieved.
In the present invention, the content of the repair agent microcapsule or repair agent microfiber in the self-repair layer may be 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, or 20% by mass.
Preferably, the catalyst is an organic peroxide initiator or an azo-type initiator.
In the present invention, the mass percentage content of the catalyst in the self-repairing layer may be 0.1%, 0.3%, 0.5%, 0.8%, 1%, 1.2%, 1.4%, 1.6%, 1.8%, or 2%.
Preferably, the thickness of the self-healing layer is 0.1-500 μm, such as 0.1 μm, 0.5 μm, 0.8 μm, 1 μm, 5 μm, 8 μm, 10 μm, 20 μm, 50 μm, 80 μm, 100 μm, 130 μm, 150 μm, 180 μm, 200 μm, 230 μm, 250 μm, 300 μm, 350 μm, 400 μm, 450 μm or 500 μm.
Preferably, the surface hardness of the self-repairing layer is 4H or more, for example, 4H, 4.5H, 5H, 5.5H, 6H, 6.5H, 7H, 7.5H, 8H, and the like.
Preferably, the flexible driving backplane layer comprises a polyimide film layer and a Thin Film Transistor (TFT) disposed thereon.
Preferably, a protective layer is further included between the polarizer plate layer and the self-repairing layer.
Preferably, the protective layer is a polyester film layer, a polyimide film layer or a polyacrylate film layer.
Preferably, the protective layer is a polyethylene terephthalate (PET) film layer, a polyethylene naphthalate (PEN) film layer, a Polyimide (PI) film layer, or a Polymethylmethacrylate (PMMA) film layer. In the invention, the protective layer plays a role in supporting the self-repairing layer and protecting each functional layer of the AMOLED
Preferably, the thickness of the protective layer is 5-100 μm, such as 5 μm, 10 μm, 20 μm, 30 μm, 40 μm, 50 μm, 60 μm, 70 μm, 80 μm, 90 μm or 100 μm.
In the flexible AMOLED display screen, the flexible driving back plate layer, the organic light emitting layer, the touch layer and the polarizing plate layer belong to the AMOLED screen part. In the preparation process of the flexible AMOLED display screen, the AMOLED screen can be prepared by applying the means in the prior art, the protective layer can be arranged on the AMOLED screen in an attaching mode, and the self-repairing layer can be prepared in a coating mode, an ink-jet printing mode and the like.
In another aspect, the present invention provides a method for repairing cracks of a flexible AMOLED display screen, the method comprising: when the flexible AMOLED display screen is cracked, the flexible AMOLED display screen is self-repaired under the initiation of an external condition.
Preferably, the external condition is heating, ultraviolet irradiation or X-ray irradiation. For example, the heating temperature may be 70 to 80 ℃, such as 70 ℃, 71 ℃, 72 ℃, 73 ℃, 74 ℃, 75 ℃, 76 ℃, 77 ℃, 78 ℃, 79 ℃ or 80 ℃.
According to the invention, when the flexible AMOLED display screen generates cracks, a series of chemical reactions occur under the initiation of external conditions, so that two interfaces of the cracks are healed again, and self-repairing is achieved.
In the present invention, in addition to the polymerization reaction of the repairing agent in contact with the catalyst at the time of crack generation, radicals may be generated in the repairing agent under irradiation of ultraviolet rays, for example, to initiate radical polymerization of the repairing agent to form a polymer, thereby achieving the purpose of repairing cracks.
In another aspect, the invention provides a flexible display device comprising a flexible AMOLED display screen as described above.
Compared with the prior art, the invention has the following beneficial effects:
the flexible AMOLED display screen has good flexibility and self-repairing capability, can self-repair internal or external cracks generated in the using process of the flexible AMOLED display screen, prolongs the service life of the display screen and a display device, and has wide application prospect.
Drawings
Fig. 1 is a schematic structural diagram of an exemplary flexible AMOLED display screen of the present invention, in which 1 is a flexible driving backplane layer, 2 is an organic light emitting layer, 3 is a touch layer, 4 is a polarizer layer, and 5 is a self-repairing layer.
Fig. 2 is a schematic structural diagram of another exemplary flexible AMOLED display screen of the present invention, in which 1 is a flexible driving backplane layer, 2 is an organic light emitting layer, 3 is a touch layer, 4 is a polarizer layer, 5 is a self-repairing layer, and 6 is a protective layer.
Fig. 3 is a schematic flow chart of an action process of the flexible AMOLED display screen in crack repair.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments. It should be understood by those skilled in the art that the examples are only for the understanding of the present invention and should not be construed as the specific limitations of the present invention.
Example 1
In the present embodiment, a flexible AMOLED display screen is provided, as shown in fig. 1, which includes, from bottom to top, a flexible driving backplane layer (1), an organic light emitting layer (2), a touch layer (3), a polarizer layer (4), and a self-repairing layer (5).
The preparation raw materials of the self-repairing layer comprise the following components in percentage by mass: 80% of a matrix material, 18% of a repair agent microcapsule or repair agent microfiber, and 2% of a catalyst; the repairing agent microcapsule is obtained by coating a repairing agent by a coating material.
The repairing agent is epoxy resin prepolymer, the coating material is epoxy vinyl ester, the thickness of the self-repairing layer is 100 micrometers, and the surface hardness of the self-repairing layer is 4H.
Example 2
In the present embodiment, a flexible AMOLED display screen is provided, as shown in fig. 1, which includes, from bottom to top, a flexible driving backplane layer (1), an organic light emitting layer (2), a touch layer (3), a polarizer layer (4), and a self-repairing layer (5).
The preparation raw materials of the self-repairing layer comprise the following components in percentage by mass: 85% of a matrix material, 14.9% of a repair agent microcapsule or repair agent microfiber, and 0.1% of a catalyst; the repairing agent microcapsule is obtained by coating a repairing agent by a coating material.
The repairing agent is polydimethylsiloxane, the coating material is polyurethane, the thickness of the self-repairing layer is 300 mu m, and the surface hardness of the self-repairing layer is 5H.
Example 3
In the present embodiment, a flexible AMOLED display screen is provided, as shown in fig. 1, which includes, from bottom to top, a flexible driving backplane layer (1), an organic light emitting layer (2), a touch layer (3), a polarizer layer (4), and a self-repairing layer (5).
The preparation raw materials of the self-repairing layer comprise the following components in percentage by mass: 89% of a matrix material, 10% of a repair agent microcapsule or repair agent microfiber, and 1% of a catalyst; the repairing agent microcapsule is obtained by coating a repairing agent by a coating material.
The repairing agent is poly diethyl siloxane, the coating material is epoxy vinyl ester, the thickness of the self-repairing layer is 500 mu m, and the surface hardness of the self-repairing layer is 6H.
Example 4
In the present embodiment, a flexible AMOLED display screen is provided, as shown in fig. 1, which includes, from bottom to top, a flexible driving backplane layer (1), an organic light emitting layer (2), a touch layer (3), a polarizer layer (4), and a self-repairing layer (5).
The preparation raw materials of the self-repairing layer comprise the following components in percentage by mass: 80% of a matrix material, 19% of a repair agent microcapsule or repair agent microfiber, and 1% of a catalyst; the repairing agent microcapsule is obtained by coating a repairing agent by a coating material.
The repairing agent is poly diethyl siloxane, the coating material is polyurethane, the thickness of the self-repairing layer is 50 micrometers, and the surface hardness of the self-repairing layer is 4H.
Example 5
In this embodiment, a flexible AMOLED display screen is provided, as shown in fig. 2, which includes, from bottom to top, a flexible driving backplane layer (1), an organic light emitting layer (2), a touch layer (3), a polarizer layer (4), a protective layer (6), and a self-repairing layer (5).
The preparation raw materials of the self-repairing layer comprise the following components in percentage by mass: 89.5% of matrix material, 10% of repair agent microcapsules or repair agent microfibers and 0.5% of catalyst; the repairing agent microcapsule is obtained by coating a repairing agent by a coating material.
The repairing agent is a combination of polydimethylsiloxane and polydiethylsiloxane, the coating material is a combination of epoxy vinyl ester and polyurethane, the thickness of the self-repairing layer is 80 micrometers, the surface hardness of the self-repairing layer is 4H, and the protective layer is a polyethylene terephthalate layer.
Example 6
In this embodiment, a flexible AMOLED display screen is provided, as shown in fig. 2, which includes, from bottom to top, a flexible driving backplane layer (1), an organic light emitting layer (2), a touch layer (3), a polarizer layer (4), a protective layer (6), and a self-repairing layer (5).
The preparation raw materials of the self-repairing layer comprise the following components in percentage by mass: 88% of a matrix material, 10% of a repair agent microcapsule or repair agent microfiber, and 2% of a catalyst; the repairing agent microcapsule is obtained by coating a repairing agent by a coating material.
The repairing agent is poly diethyl siloxane, the coating material is epoxy vinyl ester, the thickness of the self-repairing layer is 100 micrometers, the surface hardness of the self-repairing layer is 4H, and the protective layer is a polyimide layer.
Example 7
In this embodiment, a flexible AMOLED display screen is provided, as shown in fig. 2, which includes, from bottom to top, a flexible driving backplane layer (1), an organic light emitting layer (2), a touch layer (3), a polarizer layer (4), a protective layer (6), and a self-repairing layer (5).
The preparation raw materials of the self-repairing layer comprise the following components in percentage by mass: 83% of a matrix material, 16% of a repair agent microcapsule or repair agent microfiber, and 1% of a catalyst; the repairing agent microcapsule is obtained by coating a repairing agent by a coating material.
The repairing agent is a combination of epoxy resin prepolymer and polydimethylsiloxane, the coating material is polyurethane, the thickness of the self-repairing layer is 300 mu m, the surface hardness of the self-repairing layer is 5H, and the protective layer is a polyimide layer.
Example 8
In this embodiment, a flexible AMOLED display screen is provided, as shown in fig. 2, which includes, from bottom to top, a flexible driving backplane layer (1), an organic light emitting layer (2), a touch layer (3), a polarizer layer (4), a protective layer (6), and a self-repairing layer (5).
The preparation raw materials of the self-repairing layer comprise the following components in percentage by mass: 80% of a matrix material, 18% of a repair agent microcapsule or repair agent microfiber, and 2% of a catalyst; the repairing agent microcapsule is obtained by coating a repairing agent by a coating material.
The repairing agent is epoxy resin prepolymer, the coating material is polyurethane, the thickness of the self-repairing layer is 400 microns, the surface hardness of the self-repairing layer is 6H, and the protective layer is a polymethyl methacrylate layer.
Example 9
The flexible AMOLED display screens prepared in examples 1 to 8, in which cracks are generated, can be self-repaired, the action flow of the flexible AMOLED display screen in the process of crack repair is shown in fig. 3, when cracks are generated outside/inside the material of the flexible AMOLED display screen, the repair agent (i.e. microcapsule or hollow fiber coated repair agent) coated inside the material leaks out, the repair agent fills the cracks, contacts with the catalyst, and under the initiation of external conditions (such as heating, ultraviolet irradiation, X-ray irradiation and the like), chemical reaction occurs, and the repair agent is cured and fills the cracks.
The flexible AMOLED display screen can be used for preparing a flexible display device, and the flexible display device has a self-repairing function, greatly prolongs the service life of the device, and has a wide application prospect.
The applicant states that the present invention is described by the above embodiments, but the present invention is not limited to the above embodiments, i.e. it does not mean that the present invention must be implemented by the above embodiments. It will be apparent to those skilled in the art that any modification of the present invention, equivalent substitutions of selected materials and additions of auxiliary components, selection of specific modes and the like, which are within the scope and disclosure of the present invention, are contemplated by the present invention.
Claims (10)
1. The flexible AMOLED display screen is characterized by sequentially comprising a flexible driving back plate layer, an organic light emitting layer, a touch layer, a polarizing plate layer and a self-repairing layer from bottom to top.
2. The flexible AMOLED display screen according to claim 1, wherein the self-repairing layer is prepared from the following raw materials in percentage by mass: 80-90% of matrix material, 10-20% of repairing agent microcapsule and/or repairing agent microfiber and 0.1-2% of catalyst.
3. The flexible AMOLED display screen of claim 1 or 2, wherein the matrix material is epoxy vinyl ester and/or polyurethane;
preferably, the repairing agent microcapsule is obtained by coating a repairing agent with a coating material;
preferably, the repair agent is any one of or a combination of at least two of epoxy resin prepolymer, polydimethylsiloxane or polydiethylsiloxane.
4. The flexible AMOLED display screen of any one of claims 1-3, wherein the cladding material is epoxy vinyl ester and/or polyurethane;
preferably, the catalyst is an organic peroxide initiator or an azo-type initiator.
5. The flexible AMOLED display screen of any one of claims 1-4, wherein the self-repair layer has a thickness of 0.1-500 μm;
preferably, the surface hardness of the self-repairing layer is 4H or more.
6. The flexible AMOLED display screen of any one of claims 1-5, wherein the flexible driving backplane layer comprises a polyimide film layer and thin film transistors disposed thereon.
7. The flexible AMOLED display screen of any one of claims 1-6, further comprising a protective layer between the polarizer plate layer and self-repair layer.
8. The flexible AMOLED display screen of any one of claims 1-7, wherein the protective layer is a polyester film layer, a polyimide film layer or a polyacrylate film layer;
preferably, the thickness of the protective layer is 5-100 μm.
9. The method for repairing cracks in the flexible AMOLED display screen according to any one of claims 1-8, wherein the method is as follows: when the flexible AMOLED display screen is cracked, the flexible AMOLED display screen is self-repaired under the initiation of an external condition;
preferably, the external condition is heating, ultraviolet irradiation or X-ray irradiation.
10. A flexible display device comprising the flexible AMOLED display screen of any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810988509.XA CN110867465A (en) | 2018-08-28 | 2018-08-28 | Flexible AMOLED display screen, crack repairing method thereof and flexible display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810988509.XA CN110867465A (en) | 2018-08-28 | 2018-08-28 | Flexible AMOLED display screen, crack repairing method thereof and flexible display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110867465A true CN110867465A (en) | 2020-03-06 |
Family
ID=69651497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810988509.XA Pending CN110867465A (en) | 2018-08-28 | 2018-08-28 | Flexible AMOLED display screen, crack repairing method thereof and flexible display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110867465A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021248708A1 (en) * | 2020-06-12 | 2021-12-16 | 深圳市华星光电半导体显示技术有限公司 | Quantum dot ink and display terminal |
| CN114550590A (en) * | 2022-02-22 | 2022-05-27 | Oppo广东移动通信有限公司 | Flexible screen, display screen assembly and electronic equipment |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101153108A (en) * | 2007-08-30 | 2008-04-02 | 中山大学 | Self-repaired polyalcohol composite material at room temperature |
| CN101243561A (en) * | 2005-08-18 | 2008-08-13 | 柯尼卡美能达控股株式会社 | Organic electroluminescent element, display device, and lighting device |
| US20120212797A1 (en) * | 2011-02-21 | 2012-08-23 | E Ink Holdings Inc. | Flexible display device |
| US20120321828A1 (en) * | 2011-06-16 | 2012-12-20 | United States Of America As Represented By The Administrator Of The National Aeronautics And Spac | Self-Healing Polymer Materials for Wire Insulation, Polyimides, Flat Surfaces, and Inflatable Structures |
| KR20160069575A (en) * | 2014-12-08 | 2016-06-17 | 엘지디스플레이 주식회사 | Flexible display |
| CN105974631A (en) * | 2016-07-13 | 2016-09-28 | 深圳市华星光电技术有限公司 | Flexible substrate and manufacturing method thereof and flexible liquid crystal display panel |
| CN106409873A (en) * | 2016-10-12 | 2017-02-15 | 上海天马微电子有限公司 | Flexible display device and manufacturing method |
| KR20180082816A (en) * | 2017-01-11 | 2018-07-19 | 연세대학교 원주산학협력단 | Microcapsule-type self-healing coating solution comprising a silanol-terminated polydimethylsiloxane |
| CN108300364A (en) * | 2016-09-29 | 2018-07-20 | 日东电工株式会社 | Organic conductive layers adhesive phase, adhesive composition, polarizing coating and image display device with adhesive phase |
| CN208954990U (en) * | 2018-08-28 | 2019-06-07 | 上海和辉光电有限公司 | A kind of flexibility AMOLED display screen and flexible display device |
-
2018
- 2018-08-28 CN CN201810988509.XA patent/CN110867465A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101243561A (en) * | 2005-08-18 | 2008-08-13 | 柯尼卡美能达控股株式会社 | Organic electroluminescent element, display device, and lighting device |
| CN101153108A (en) * | 2007-08-30 | 2008-04-02 | 中山大学 | Self-repaired polyalcohol composite material at room temperature |
| US20120212797A1 (en) * | 2011-02-21 | 2012-08-23 | E Ink Holdings Inc. | Flexible display device |
| US20120321828A1 (en) * | 2011-06-16 | 2012-12-20 | United States Of America As Represented By The Administrator Of The National Aeronautics And Spac | Self-Healing Polymer Materials for Wire Insulation, Polyimides, Flat Surfaces, and Inflatable Structures |
| KR20160069575A (en) * | 2014-12-08 | 2016-06-17 | 엘지디스플레이 주식회사 | Flexible display |
| CN105974631A (en) * | 2016-07-13 | 2016-09-28 | 深圳市华星光电技术有限公司 | Flexible substrate and manufacturing method thereof and flexible liquid crystal display panel |
| CN108300364A (en) * | 2016-09-29 | 2018-07-20 | 日东电工株式会社 | Organic conductive layers adhesive phase, adhesive composition, polarizing coating and image display device with adhesive phase |
| CN106409873A (en) * | 2016-10-12 | 2017-02-15 | 上海天马微电子有限公司 | Flexible display device and manufacturing method |
| US20170092897A1 (en) * | 2016-10-12 | 2017-03-30 | Shanghai Tianma Micro-electronics Co., Ltd. | Flexible display device and fabrication method thereof |
| KR20180082816A (en) * | 2017-01-11 | 2018-07-19 | 연세대학교 원주산학협력단 | Microcapsule-type self-healing coating solution comprising a silanol-terminated polydimethylsiloxane |
| CN208954990U (en) * | 2018-08-28 | 2019-06-07 | 上海和辉光电有限公司 | A kind of flexibility AMOLED display screen and flexible display device |
Non-Patent Citations (1)
| Title |
|---|
| BY SOO HYOUN CHO, H. MAGNUS ANDERSSON, SCOTT R. WHITE, NANCY R. SOTTOS, AND PAUL V. BRAUN: "Polydimethylsiloxane-Based Self-Healing", 31 December 2006, pages: 997 - 1000 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021248708A1 (en) * | 2020-06-12 | 2021-12-16 | 深圳市华星光电半导体显示技术有限公司 | Quantum dot ink and display terminal |
| CN114550590A (en) * | 2022-02-22 | 2022-05-27 | Oppo广东移动通信有限公司 | Flexible screen, display screen assembly and electronic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI512021B (en) | Display panel assembly and methods of making same | |
| CN101317205B (en) | Process for producing display and method of laminating | |
| KR20010100923A (en) | Transparent conductive multilayer body and touch panel comprising the same | |
| TWI629174B (en) | Lamination method of substrates and product prepared thereby | |
| CN110867465A (en) | Flexible AMOLED display screen, crack repairing method thereof and flexible display device | |
| JP2010108038A (en) | Touch panel, manufacturing method thereof, and touch panel display device | |
| US11454839B2 (en) | Touch display device comprising adhesive layer or protective layer that is opaque material for preventing light leakage | |
| CN208954990U (en) | A kind of flexibility AMOLED display screen and flexible display device | |
| WO2010076903A1 (en) | Touch screen window for applying to display panel such as lcd panel and method for preparing the same | |
| CN107315267A (en) | A kind of intelligent flexible liquid crystal module and corresponding display device | |
| CN101750787B (en) | Liquid crystal display device | |
| CN102822700A (en) | Durability-enhanced optical sheet and backlight unit having the same | |
| KR20090103537A (en) | Double-side adhesive sheet and single unit touch panel display device | |
| CN201440175U (en) | Anti-newton ring and anti-highlight structure of transparent laminate | |
| US10061152B2 (en) | Display device | |
| WO2021012443A1 (en) | Touch display device | |
| JP2015099356A (en) | Display device, display device manufacturing method and display device repair method | |
| JP2011110757A (en) | Substrate for display device | |
| CN111566550A (en) | Dimming sheet and dimming device | |
| Qiu et al. | An electrophoretic e‐paper device with stretchable, washable, and rewritable functions | |
| CN114495707A (en) | Adhesive composition and display device | |
| CN105589265A (en) | Liquid crystal displayer | |
| KR101693074B1 (en) | Adhesive film, adhesive composition for the same and display comprising the same | |
| JP2019191481A (en) | Dimming body | |
| CN216927314U (en) | Optical sheet for backlight unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |