CN107819004B - Flexible display panel, manufacturing method thereof and flexible display device - Google Patents
Flexible display panel, manufacturing method thereof and flexible display device Download PDFInfo
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- CN107819004B CN107819004B CN201610821776.9A CN201610821776A CN107819004B CN 107819004 B CN107819004 B CN 107819004B CN 201610821776 A CN201610821776 A CN 201610821776A CN 107819004 B CN107819004 B CN 107819004B
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- 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
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
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- 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 display panel, a manufacturing method thereof and a flexible display device, wherein the flexible display panel comprises: first flexible substrate, organic light emitting device and second flexible substrate, organic light emitting device sets up between first flexible substrate and second flexible substrate, its characterized in that: the first flexible substrate and/or the second flexible substrate are/is prepared by the copolymerization reaction of acrylic materials or epoxy materials and plasticizing comonomers, and the plasticizing comonomers are nano inorganic substances. According to the invention, a certain copolymerization modification is formed by the plasticizing comonomer such as nano silicon nitride and the like and the acrylic material or the epoxy material, so that the abrasion-resistant effect is better, meanwhile, the inorganic nano silicon nitride can enhance the hardness of the hard coating film, reduce the thickness of the hard coating film and improve the flexibility of the flexible display panel.
Description
Technical Field
The invention relates to the field of display devices, in particular to a flexible display panel, a manufacturing method of the flexible display panel and a flexible display device.
Background
Compared with the cover glass on the uppermost layer of the rigid OLED, the light-transmitting cover plate (used for replacing the cover glass) of the flexible OLED has a greater challenge, and has both the properties of high hardness, abrasion resistance and the like of the cover glass and the properties of flexibility. Fig. 1 is a schematic cross-sectional view of a flexible display panel of the prior art. As shown in fig. 1, the conventional flexible display panel includes: a first flexible substrate 100 ', an organic light emitting device 200', and a second flexible substrate 300 ', the organic light emitting device 200' being encapsulated between the first flexible substrate 100 'and the second flexible substrate 300'. The first flexible substrate 100' is a substrate of a flexible display panel. The second flexible substrate 300 'is a cover plate of a flexible display panel and the second flexible substrate 300' is a flexible light transmissive cover plate for flexible OLEDs, also commonly referred to as hard coating film. The commonly used hard coating film is an acrylic material or an epoxy material, and when a certain high hardness is achieved, the thickness of the hard coating film is often thicker, so that the flexibility of the flexible OLED is limited.
In view of the above, the present invention provides a flexible display panel, a method of manufacturing the same, and a flexible display device.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a flexible display panel, a manufacturing method thereof and a flexible display device, which overcome the defects in the prior art, and enable the abrasion-resistant effect to be better through certain copolymerization modification of plasticizing comonomers such as nano silicon nitride and the like and acrylic materials or epoxy materials, and meanwhile, inorganic nano silicon nitride can enhance the hardness of a hard coating film, reduce the thickness of the hard coating film and improve the flexibility of the flexible display panel.
According to an aspect of the present invention, there is provided a flexible display panel including: first flexible substrate, organic light emitting device and second flexible substrate, organic light emitting device set up in first flexible substrate with between the second flexible substrate, its characterized in that: the first flexible substrate and/or the second flexible substrate are/is prepared by copolymerization reaction of acrylic materials or epoxy materials and plasticizing comonomers, and the plasticizing comonomers are nano inorganic substances.
Preferably, the plasticizing comonomer comprises nano silicon nitride (SiN), nano silicon oxide (SiO)2) Nano alumina (Al)2O3) Nano aluminium nitride (AlN) and nano titanium dioxide (TiO)2) Nano zirconium dioxide (ZrO)2) Nano magnesium oxide (MgO), nano hafnium oxide (HfO)2) At least one of (1).
Preferably, the doping ratio of the plasticizing comonomer ranges from 0.1 wt% to 80 wt%.
Preferably, the first flexible substrate is a substrate of a flexible display panel.
Preferably, the second flexible substrate is a cover plate of a flexible display panel.
According to another aspect of the present invention, there is also provided a flexible display device including the flexible display panel described above.
According to another aspect of the present invention, there is also provided a method of manufacturing a flexible display panel, including the steps of:
s100, forming a first flexible substrate;
s200, forming an organic light-emitting device on one surface of the first flexible substrate;
s300, forming a second flexible substrate on one side, opposite to the first flexible substrate, of the organic light-emitting device;
the first flexible substrate in the step S100 and/or the second flexible substrate in the step S300 are/is prepared by a copolymerization reaction of an acrylic material or an epoxy material and a plasticizing comonomer, wherein the plasticizing comonomer is a nanoscale inorganic substance.
Preferably, the step S200 further includes: and carrying out a packaging process on the organic light-emitting device on the first flexible substrate.
Preferably, the plasticizing comonomer comprises nano silicon nitride (SiN), nano silicon oxide (SiO)2) Nano alumina (Al)2O3) Nano aluminium nitride (AlN) and nano titanium dioxide (TiO)2) Nano zirconium dioxide (ZrO)2) Nano magnesium oxide (MgO), nano hafnium oxide (HfO)2) At least one of (1).
Preferably, the doping ratio of the plasticizing comonomer ranges from 0.1 wt% to 80 wt%.
Preferably, the first flexible substrate is configured as a substrate of a flexible display panel, and the second flexible substrate is configured as a cover plate of the flexible display panel.
In view of the above, the flexible display panel, the manufacturing method thereof and the flexible display device of the invention can form a certain copolymerization modification with acrylic materials or epoxy materials through the plasticizing comonomer such as nano silicon nitride, which means that chemical bonds on the nano silicon nitride rain acrylic materials or epoxy materials are connected, so that the compatibility of nano silicon nitride particles and acrylic materials or epoxy materials is improved, the chemical bonds are formed between the nano silicon nitride rain acrylic materials or epoxy materials, the interface bonding between the nano silicon nitride rain acrylic materials or epoxy materials is enhanced, the dispersion strengthening effect is achieved, the abrasion-resistant effect is better, meanwhile, the inorganic nano silicon nitride can enhance the hardness of the hard coating film, the thickness of the hard coating film is reduced, and the flexibility of the flexible display panel is improved.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic cross-sectional view of a prior art flexible display panel;
FIG. 2 is a schematic cross-sectional view of a flexible display panel according to the present invention; and
fig. 3 is a schematic cross-sectional view of a flexible display device of the invention.
Reference numerals
100' first flexible substrate
200' organic light emitting device
300' second flexible substrate
100 first flexible substrate
200 organic light emitting device
300 second flexible substrate
400 flexible display panel
500 flexible display device
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their repetitive description will be omitted.
The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to provide a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In some instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring the invention.
As used herein, the terms "comprises," "comprising," "includes," "including," "has," "having" or any other variation thereof, are intended to cover a non-exclusive inclusion. For example, a method, article, or apparatus that comprises a list of features is not necessarily limited to only those features but may include other features not expressly listed or inherent to such method, article, or apparatus. Further, unless expressly stated to the contrary, "or" refers to an inclusive or, and not to an exclusive or. For example, condition a or B is satisfied by either: a is true (or present) and B is false (or not present), a is false (or not present) and B is true (or present), and both a and B are true (or present).
Also, the use of "a" or "an" is used to describe elements and components described herein. This is done merely for convenience and to provide a general sense of the scope of the invention. This description should be read to include one or at least one and the singular also includes the plural and vice versa unless it is obvious that it is meant otherwise. For example, when a single item is described herein, more than one item may be used in place of a single item. Similarly, when more than one article is described herein, a single article may replace more than one article.
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 invention belongs. The materials, methods, and examples are illustrative only and not intended to be limiting. To the extent not described herein, many details regarding specific materials and processing acts are conventional and may be found in textbooks and other sources within the inorganic layer deposition arts and corresponding manufacturing arts.
Fig. 2 is a schematic cross-sectional view of a flexible display panel according to the present invention. As shown in fig. 2, a flexible display panel 400 of the present invention includes: the organic light emitting device includes a first flexible substrate 100, an organic light emitting device 200, and a second flexible substrate 300, wherein the organic light emitting device 200 is encapsulated between the first flexible substrate 100 and the second flexible substrate 300. Wherein the first flexible substrate 100 is used as a substrate of the flexible display panel 400. The second flexible substrate 300 is used as a cover of the flexible display panel 400.
The first flexible substrate 100 of the present invention may be made by a copolymerization reaction of an acrylic material or an epoxy material and a plasticizing comonomer, where the plasticizing comonomer is a nano inorganic substance. The plasticizing comonomer in this example includes nano silicon nitride (SiN), nano silicon oxide (SiO)2) Nano alumina (Al)2O3) Nano aluminium nitride (AlN) and nano titanium dioxide (TiO)2) Nano zirconium dioxide (ZrO)2) Nano magnesium oxide (MgO), nano hafnium oxide (HfO)2) But not limited thereto. The doping ratio of the plasticizing comonomer in this embodiment ranges from 0.1 wt% to 80 wt%, but is not limited thereto.
Alternatively, in another modification, the second flexible substrate 300 is made by copolymerizing an acrylic material or an epoxy material with a plasticizing comonomer, where the plasticizing comonomer is a nanoscale inorganic substance.
Still alternatively, in another variation, the first flexible substrate 100 and the second flexible substrate 300 are both made by copolymerizing acrylic material or epoxy material with plasticizing comonomer, and the plasticizing comonomer is nano-inorganic substance.
In the copolymerization reaction of the present invention, when a small amount of a well-dispersed nanoscale inorganic substance such as: the nano silicon nitride plays a role in dispersion enhancement when being in an acrylic material or an epoxy material, so that the abrasion resistance of the hard coating film is improved, meanwhile, the inorganic nano silicon nitride can enhance the hardness of the hard coating film, and after the nano silicon nitride and the acrylic material or the epoxy material form certain copolymerization modification, the compatibility of nano silicon nitride particles and the acrylic material or the epoxy material is improved, so that chemical bonds are formed between the nano silicon nitride particles and the acrylic material or the epoxy material, the interface bonding between the nano silicon nitride particles and the acrylic material or the epoxy material is enhanced, the dispersion enhancement effect is achieved, the abrasion resistance effect is better, meanwhile, the inorganic nano silicon nitride can enhance the hardness of the hard coating film, and when the hardness and the abrasion resistance of the hard coating film are improved, the thickness of the hard coating film can be reduced, and the flexible OLED can be bent to have certain contribution.
Fig. 3 is a schematic cross-sectional view of a flexible display device of the invention. As shown in fig. 3, the present invention also provides a flexible display device 500 including the flexible display panel 400 described above. The flexible display panel 400 includes: the organic light emitting device includes a first flexible substrate 100, an organic light emitting device 200, and a second flexible substrate 300, wherein the organic light emitting device 200 is encapsulated between the first flexible substrate 100 and the second flexible substrate 300. Wherein the first flexible substrate 100 is used as a substrate of the flexible display panel 400. The second flexible substrate 300 is used as a cover of the flexible display panel 400.
The first flexible substrate 100 of the present invention may be made by a copolymerization reaction of an acrylic material or an epoxy material and a plasticizing comonomer, where the plasticizing comonomer is a nano inorganic substance. The plasticizing comonomer in this example includes nano silicon nitride (SiN), nano silicon oxide (SiO)2) Nano alumina (Al)2O3) Nano aluminium nitride (AlN) and nano titanium dioxide (TiO)2) Nano zirconium dioxide (ZrO)2) Nano magnesium oxide (MgO), nano hafnium oxide (HfO)2) But not limited thereto. The doping ratio of the plasticizing comonomer in this embodiment is in the range of 0.1 wt% to 80 wt% (wt% is weight percent), but not limited thereto.
Alternatively, in another modification, the second flexible substrate 300 is made by copolymerizing an acrylic material or an epoxy material with a plasticizing comonomer, where the plasticizing comonomer is a nanoscale inorganic substance.
Still alternatively, in another variation, the first flexible substrate 100 and the second flexible substrate 300 are both made by copolymerizing acrylic material or epoxy material with plasticizing comonomer, and the plasticizing comonomer is nano-inorganic substance.
The invention also provides a manufacturing method of the flexible display panel, which comprises the following steps:
s100, a first flexible substrate 100 is formed, and the first flexible substrate 100 is configured as a substrate of the flexible display panel 400.
S200, forming an organic light emitting device 200 on one surface of the first flexible substrate 100;
s300, forming a second flexible substrate 300 on a side of the organic light emitting device 200 opposite to the first flexible substrate 100, the second flexible substrate 300 being configured as a cover plate of the flexible display panel 400.
The first flexible substrate 100 in step S100 may be prepared by a copolymerization reaction of an acrylic material or an epoxy material and a plasticizing comonomer, where the plasticizing comonomer is a nanoscale inorganic substance. The plasticizing comonomer in this example includes nano silicon nitride (SiN), nano silicon oxide (SiO)2) Nano alumina (Al)2O3) Nano aluminium nitride (AlN) and nano titanium dioxide (TiO)2) Nano zirconium dioxide (ZrO)2) Nano magnesium oxide (MgO), nano hafnium oxide (HfO)2) But not limited thereto. The doping ratio of the plasticizing comonomer in this embodiment ranges from 0.1 wt% to 80 wt%, but is not limited thereto.
The step S200 further includes: and carrying out a packaging process on the organic light-emitting device on the first flexible substrate.
Alternatively, in another modification, the second flexible substrate 300 in step S300 is prepared by copolymerizing an acrylic material or an epoxy material with a plasticizing comonomer, where the plasticizing comonomer is a nanoscale inorganic substance.
Still alternatively, in another variation, the first flexible substrate 100 in step S100 and the second flexible substrate 300 in step S300 are both prepared by copolymerizing an acrylic material or an epoxy material with a plasticizing comonomer, wherein the plasticizing comonomer is a nanoscale inorganic substance.
In summary, the flexible display panel, the manufacturing method thereof and the flexible display device of the invention can form a certain copolymerization modification with acrylic materials or epoxy materials through the plasticizing comonomer such as nano silicon nitride, and the like, which means that chemical bonds on the nano silicon nitride rain acrylic materials or the epoxy materials are connected in a bonding manner, so that the compatibility of nano silicon nitride particles and the acrylic materials or the epoxy materials is improved, the chemical bonds are formed between the nano silicon nitride rain acrylic materials or the epoxy materials, the interface bonding between the nano silicon nitride rain acrylic materials or the epoxy materials is enhanced, the dispersion strengthening effect is achieved, the abrasion-resistant effect is better, the inorganic nano silicon nitride can obviously enhance the hardness of the hard coating film, the thickness of the hard coating film is reduced, and the flexibility of the flexible display panel is improved.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention.
Claims (7)
1. A flexible display panel comprising: first flexible substrate, organic light emitting device and second flexible substrate, organic light emitting device set up in first flexible substrate with between the second flexible substrate, its characterized in that: the first flexible substrate and/or the second flexible substrate are/is prepared by the copolymerization reaction of an acrylic material or an epoxy material and a plasticizing comonomer, and the plasticizing comonomer is a nano inorganic substance; the plasticizing comonomer comprises at least one of nano silicon nitride, nano silicon oxide, nano aluminum nitride, nano titanium dioxide, nano zirconium dioxide, nano magnesium oxide and nano hafnium oxide; the doping proportion of the plasticizing comonomer ranges from 0.1 wt% to 80 wt%.
2. The flexible display panel of claim 1, wherein: the first flexible substrate is a substrate of a flexible display panel.
3. The flexible display panel of claim 1, wherein: the second flexible substrate is a cover plate of a flexible display panel.
4. A flexible display device comprising a flexible display panel according to any one of claims 1 to 3.
5. A method of manufacturing a flexible display panel, comprising the steps of:
s100, forming a first flexible substrate;
s200, forming an organic light-emitting device on one surface of the first flexible substrate;
s300, forming a second flexible substrate on one side, opposite to the first flexible substrate, of the organic light-emitting device;
the method is characterized in that the first flexible substrate in the step S100 and/or the second flexible substrate in the step S300 are/is prepared by copolymerization of an acrylic material or an epoxy material and a plasticizing comonomer, wherein the plasticizing comonomer is a nanoscale inorganic substance;
the plasticizing comonomer comprises at least one of nano silicon nitride, nano silicon oxide, nano aluminum nitride, nano titanium dioxide, nano zirconium dioxide, nano magnesium oxide and nano hafnium oxide; the doping proportion of the plasticizing comonomer ranges from 0.1 wt% to 80 wt%.
6. The method for manufacturing a flexible display panel according to claim 5, wherein the step S200 further comprises: and carrying out a packaging process on the organic light-emitting device on the first flexible substrate.
7. The method of manufacturing a flexible display panel according to claim 6, wherein: the first flexible substrate is configured as a substrate of a flexible display panel and the second flexible substrate is configured as a cover sheet of the flexible display panel.
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| CN201610821776.9A CN107819004B (en) | 2016-09-13 | 2016-09-13 | Flexible display panel, manufacturing method thereof and flexible display device |
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| CN109690663B (en) * | 2018-09-26 | 2021-11-05 | 京东方科技集团股份有限公司 | Flexible display device and hardness-enhancing layer for enhancing surface hardness and mechanical strength of flexible display panel |
| CN110910765B (en) * | 2019-11-13 | 2021-02-02 | 武汉华星光电半导体显示技术有限公司 | Display panel, manufacturing method thereof and mask plate for manufacturing |
| CN111128017B (en) * | 2019-12-03 | 2021-09-24 | 武汉华星光电半导体显示技术有限公司 | Flexible cover plate, manufacturing method of flexible cover plate and display device |
| CN111128031A (en) * | 2020-01-15 | 2020-05-08 | 昆山工研院新型平板显示技术中心有限公司 | Flexible display cover plate and repairing method thereof, flexible display module and display device |
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| US7427782B2 (en) * | 2004-03-29 | 2008-09-23 | Articulated Technologies, Llc | Roll-to-roll fabricated light sheet and encapsulated semiconductor circuit devices |
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| CN101852872A (en) * | 2009-03-30 | 2010-10-06 | 富士胶片株式会社 | The production method of light-diffusing films, light-diffusing films, polarizing plate, image display device and transmissive/semi-transmissive liquid crystal display device |
| CN103703098A (en) * | 2011-06-17 | 2014-04-02 | 伊利诺斯工具制品有限公司 | Hybrid sealant composition |
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