CN110048016A - Thin-film packing structure, OLED display panel and preparation method thereof - Google Patents
Thin-film packing structure, OLED display panel and preparation method thereof Download PDFInfo
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- CN110048016A CN110048016A CN201910232697.8A CN201910232697A CN110048016A CN 110048016 A CN110048016 A CN 110048016A CN 201910232697 A CN201910232697 A CN 201910232697A CN 110048016 A CN110048016 A CN 110048016A
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/842—Containers
- H10K50/8426—Peripheral sealing arrangements, e.g. adhesives, sealants
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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
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Abstract
The present invention provides a kind of thin-film packing structures, OLED display panel and preparation method thereof.The thin-film packing structure includes: the first inorganic thin film；First organic film, first organic film are located on first inorganic thin film；Second inorganic thin film, second inorganic thin film cover first organic film and first inorganic thin film；Wherein, the material for constituting first organic film is the organic polymer with self-reparing capability.Thin-film packing structure provided by the invention, OLED display panel and preparation method thereof, can delay the loss and aging of organic film in TFE.
Description
Technical field
The present invention relates to field of electronic display more particularly to a kind of thin-film packing structures, OLED display panel and its production
Method.
Background technique
Having for Organic Light Emitting Diode (organic light emitting diode, OLED) device is light-weight, regards
The advantages that angle is wide, the response time is fast, luminous efficiency is high has huge application prospect.In addition, OLED device can be produced on it is soft
Property substrate on, formed can curved flexible display screen so that OLED display panel have compared to traditional liquid crystal display panel it is bigger
Advantage.
In order to guarantee the bending of OLED device, thin-film package (thin film is currently generallyd use
Encapsulation, TFE) technology is packaged it.The film layer structure that TFE is overlapped frequently with inorganic/organic/inorganic.Nothing
Machine film layer is then used as buffer layer as barrier water oxygen layer, organic film, for being sustained inorganic film internal stress, enhances OLED device
Flexibility.For folding flexible apparatus, after multiple fold, the organic film in TFE inevitably will appear loss
And aging phenomenon, it is cracked on excurvation surface, cause TFE organic film to buffer stress ability degradation, limiting can roll over
The service life of folded mobile phone.
Therefore, how to delay the loss and aging of organic film in TFE, and then the bending ability for improving OLED device is one
A realistic problem urgently to be solved.
Summary of the invention
The present invention provides a kind of thin-film packing structure, OLED display panel and preparation method thereof, to delay organic film in TFE
The loss and aging of layer.
To solve the above problems, the present invention provides a kind of thin-film packing structures comprising:
First inorganic thin film；
First organic film, first organic film are located on first inorganic thin film；
Second inorganic thin film, second inorganic thin film cover first organic film and first inorganic thin film；
Wherein,
The material for constituting first organic film is the organic polymer with self-reparing capability.
One aspect according to the present invention, the organic polymer with self-reparing capability include 6 methyl -2
Butylurea yl pyrimidines ketone dimer.
One aspect according to the present invention, -2 Butylurea yl pyrimidines ketone dimer of 6 methyl include first mutual
Tautomeric, first tautomer are 4 [1H]-pyrimidine one monomers, the chemical structure of 4 [1H]-pyrimidine one monomers
Are as follows:
One aspect according to the present invention, -2 Butylurea yl pyrimidines ketone dimer of 6 methyl include second mutual
Tautomeric, second tautomer are 6 [1H]-pyrimidine one monomers, the chemical structure of 6 [1H]-pyrimidine one monomers
Are as follows:
One aspect according to the present invention, -2 Butylurea yl pyrimidines ketone dimer of 6 methyl includes that third is mutual
Tautomeric, the third tautomer are pyrimidine -4- alcohol monomer, the chemical structure of the pyrimidine -4- alcohol monomer are as follows:
Correspondingly, the present invention also provides a kind of OLED display panels comprising foregoing thin-film packing structure.
Correspondingly, the present invention also provides a kind of production methods of OLED display panel, method includes the following steps:
Flexible base board is provided；
The OLED device formed on the flexible base board；
Form the first inorganic thin film for covering the OLED device；
Form the first organic film for covering first inorganic thin film；
Form the second inorganic thin film for covering first organic film；Wherein, the material of first organic film is constituted
Material is the organic polymer with self-reparing capability.
One aspect according to the present invention, the organic polymer with self-reparing capability include 6 methyl -2
Butylurea yl pyrimidines ketone dimer.
One aspect according to the present invention forms the method packet of the organic polymer with self-reparing capability
Include inkjet printing, electrofluid spray printing, spin coating and printing.
One aspect according to the present invention, first inorganic thin film and the second inorganic thin film include silicon nitride,
One of silica, silicon oxynitride, silicon carbide, carbonitride of silicium and aluminium oxide or a variety of combinations.
Organic film in original thin-film packing structure is replaced with the organic polymer with self-reparing capability by the present invention
- 2 Butylurea yl pyrimidines ketone dimer of 6 methyl of object.- 2 Butylurea yl pyrimidines ketone dimer of 6 methyl is with super strength to review one's lessons by oneself reactivation
Power can realize at normal temperatures and pressures " self-healing " by its internal a large amount of hydrogen bond, and " self-healing " has afterwards after there is fail in tension
Have and damages preceding identical mechanical performance.Use -2 Butylurea yl pyrimidines ketone dimer of 6 methyl that can effectively keep away as organic film
Exempt from encapsulating structure through multiple folded loss and aging, and then improves the bending ability of OLED device.
Detailed description of the invention
Fig. 1 is contrast schematic diagram of the thin-film packing structure in the prior art before bending and after bending；
Fig. 2 is the structural schematic diagram of the OLED display panel before the encapsulation in a specific embodiment of the invention；
Fig. 3 is to cover the later OLED display panel of the first inorganic thin film in a specific embodiment of the invention
Structural schematic diagram；
Fig. 4 is to cover the later OLED display panel of the first organic film in a specific embodiment of the invention
Structural schematic diagram；
Fig. 5 is to cover the later OLED display panel of the second inorganic thin film in a specific embodiment of the invention
Structural schematic diagram；
Fig. 6 is the structural schematic diagram of the OLED display panel in another embodiment of the invention；
Fig. 7 is the process schematic of the first organic film damage and selfreparing in the thin-film packing structure in the present invention.
Specific embodiment
The explanation of following embodiment is referred to the additional illustration, the particular implementation that can be used to implement to illustrate the present invention
Example.The direction term that the present invention is previously mentioned, such as [on], [under], [preceding], [rear], [left side], [right side], [interior], [outer], [side]
Deng being only the direction with reference to annexed drawings.Therefore, the direction term used be to illustrate and understand the present invention, rather than to
The limitation present invention.The similar unit of structure is with being given the same reference numerals in the figure.
The prior art is briefly described first.Referring to Fig. 1, Fig. 1 is thin-film packing structure in the prior art curved
Contrast schematic diagram before folding and after bending.Existing thin-film packing structure often includes organic thin by the first inorganic thin film 102, first
The film layer structure that film 104 and the second inorganic thin film 106 are constituted.Wherein, the first inorganic thin film 102 and the second inorganic thin film 106 are made
To obstruct water oxygen layer；First organic film 104 enhances OLED device for being sustained inorganic film internal stress as buffer layer
It is flexible.
Referring to Fig. 1, for folding flexible apparatus, after multiple fold, the organic film in thin-film packing structure is not
It is evitable to will appear loss and aging phenomenon, it is cracked on excurvation surface, cause TFE organic film buffering stress ability tight
Decline again, limits the service life of foldable mobile phone.
Therefore, the invention proposes a kind of thin-film packing structures, OLED display panel and preparation method thereof, to delay TFE
The loss and aging of middle organic film.
Referring to Fig. 5, Fig. 5 is that the later OLED of the second inorganic thin film that covers in a specific embodiment of the invention is shown
Show the structural schematic diagram of panel.
Referring to Fig. 5, the present invention provides a kind of OLED display panel, the OLED display panel includes substrate 20 and is located at
OLED device 30 on substrate 20.The OLED display panel further includes thin-film packing structure, and the thin-film packing structure includes:
First inorganic thin film 12；
First organic film 14, first organic film 14 are located on first inorganic thin film 12；
Second inorganic thin film 16, second inorganic thin film 16 cover first organic film 14 and described first inorganic
Film 12.
Certainly, the quantity and structure of the organic film in the encapsulating structure and inorganic thin film, which can according to need, is set
It sets, is not limited solely to described in the present embodiment.Referring to Fig. 6, for the effect of the oxygen that blocks water of enhanced film encapsulating structure, in the present invention
Another embodiment in, the thin-film packing structure further includes that the third positioned at second inorganic thin film, 16 top is inorganic thin
Film 13, the second organic film 15 above the third inorganic thin film 13, and be located on second organic film 15
4th inorganic thin film 17 of side.
In other embodiments of the invention, the organic film of the thin-film packing structure and the quantity of inorganic thin film and knot
Structure, which can according to need, to be configured, and is not limited to the embodiment of the present invention.
In the present invention, the material for constituting first organic film 14 is the organic polymer with self-reparing capability.
Specifically, the organic polymer with self-reparing capability includes -2 Butylurea yl pyrimidines ketone dimer of 6 methyl.6 methyl -2
The monomer of Butylurea yl pyrimidines ketone dimer shares 3 kinds of tautomers, in every kind of tautomer containing 2 pairs of hydrogen bond donors and
2 pairs of hydrogen bond receptors.The presence of 4 hydrogen bonds pair makes -2 Butylurea yl pyrimidines ketone dimer self-reparing capability with super strength of 6 methyl.
It is the process of the first organic film damage and selfreparing in the thin-film packing structure in the present invention referring to Fig. 7, Fig. 7
Schematic diagram.After fail in tension, -2 Butylurea yl pyrimidines ketone dimer of 6 methyl can be by its internal a large amount of hydrogen bond action normal
" self-healing " is realized under normal temperature and pressure, and " self-healing " has afterwards and damages preceding identical mechanical performance.
Specifically, -2 Butylurea yl pyrimidines ketone dimer of 6 methyl includes the first tautomer, first interconversion
Isomers is 4 [1H]-pyrimidine one monomers, the chemical structure of 4 [1H]-pyrimidine one monomers are as follows:
- 2 Butylurea yl pyrimidines ketone dimer of 6 methyl includes the second tautomer, second tautomer
For 6 [1H]-pyrimidine one monomers, the chemical structure of 6 [1H]-pyrimidine one monomers are as follows:
- 2 Butylurea yl pyrimidines ketone dimer of 6 methyl includes third tautomer, the third tautomer
For pyrimidine -4- alcohol monomer, the chemical structure of the pyrimidine -4- alcohol monomer are as follows:
Referring to fig. 2 to Fig. 5, the present invention also provides a kind of production methods of OLED display panel.Fig. 2 is of the invention one
The structural schematic diagram of the OLED display panel before encapsulation in a specific embodiment；Fig. 3 is a specific embodiment of the invention
In the structural schematic diagram for covering the later OLED display panel of the first inorganic thin film；Fig. 4 is of the invention one specific real
Apply the structural schematic diagram for covering the later OLED display panel of the first organic film in example.Method includes the following steps:
Firstly, as shown in Fig. 2, providing flexible base board 20, and the OLED device 30 formed on the flexible base board 20.Shape
It is the ordinary skill in the art at the method for OLED device, details are not described herein.
Later, as shown in figure 3, forming the first inorganic thin film 12 for covering the OLED device.First inorganic thin film
12 include one of silicon nitride, silica, silicon oxynitride, silicon carbide, carbonitride of silicium and aluminium oxide or a variety of combinations.It is formed
The method of first inorganic thin film 12 includes but is not limited to the technologies such as chemical vapor deposition, atomic layer deposition.
Later, as shown in figure 4, forming the first organic film 14 for covering first inorganic thin film 12.Wherein, institute is constituted
The material for stating the first organic film 14 is the organic polymer with self-reparing capability.It is described organic poly- with self-reparing capability
Closing object includes -2 Butylurea yl pyrimidines ketone dimer of 6 methyl.The method for forming the organic polymer with self-reparing capability
Including inkjet printing, electrofluid spray printing, spin coating and printing.
The monomer of -2 Butylurea yl pyrimidines ketone dimer of 6 methyl shares 3 kinds of tautomers, every kind of tautomer
Inside contain 2 pairs of hydrogen bond donors and 2 pairs of hydrogen bond receptors.The presence of 4 hydrogen bonds pair has -2 Butylurea yl pyrimidines ketone dimer of 6 methyl
There is superpower self-reparing capability.
It is the process of the first organic film damage and selfreparing in the thin-film packing structure in the present invention referring to Fig. 7, Fig. 7
Schematic diagram.After fail in tension, -2 Butylurea yl pyrimidines ketone dimer of 6 methyl can be by its internal a large amount of hydrogen bond action normal
" self-healing " is realized under normal temperature and pressure, and " self-healing " has afterwards and damages preceding identical mechanical performance.
Specifically, -2 Butylurea yl pyrimidines ketone dimer of 6 methyl includes the first tautomer, first interconversion
Isomers is 4 [1H]-pyrimidine one monomers, the chemical structure of 4 [1H]-pyrimidine one monomers are as follows:
- 2 Butylurea yl pyrimidines ketone dimer of 6 methyl includes the second tautomer, second tautomer
For 6 [1H]-pyrimidine one monomers, the chemical structure of 6 [1H]-pyrimidine one monomers are as follows:
- 2 Butylurea yl pyrimidines ketone dimer of 6 methyl includes third tautomer, the third tautomer
For pyrimidine -4- alcohol monomer, the chemical structure of the pyrimidine -4- alcohol monomer are as follows:
Finally, forming the second inorganic thin film 16 for covering first organic film 14.Second inorganic thin film 16 wraps
Include one of silicon nitride, silica, silicon oxynitride, silicon carbide, carbonitride of silicium and aluminium oxide or a variety of combinations.Described in formation
The method of second inorganic thin film 16 includes but is not limited to the technologies such as chemical vapor deposition, atomic layer deposition.
Organic film in original thin-film packing structure is replaced with the organic polymer with self-reparing capability by the present invention
- 2 Butylurea yl pyrimidines ketone dimer of 6 methyl of object.- 2 Butylurea yl pyrimidines ketone dimer selfreparing with super strength of 6 methyl
Ability can realize at normal temperatures and pressures " self-healing " by its internal a large amount of hydrogen bond, and after " self-healing " after there is fail in tension
With with damage before identical mechanical performance.Use -2 Butylurea yl pyrimidines ketone dimer of 6 methyl can be effective as organic film
It avoids encapsulating structure through multiple folded loss and aging, and then improves the bending ability of OLED device.
In conclusion although the present invention has been disclosed above in the preferred embodiment, but above preferred embodiment is not to limit
The system present invention, those skilled in the art can make various changes and profit without departing from the spirit and scope of the present invention
Decorations, therefore protection scope of the present invention subjects to the scope of the claims.
Claims (10)
1. a kind of thin-film packing structure, which is characterized in that the thin-film packing structure includes:
First inorganic thin film；
First organic film, first organic film are located on first inorganic thin film；
Second inorganic thin film, second inorganic thin film cover first organic film and first inorganic thin film；Wherein,
The material for constituting first organic film is the organic polymer with self-reparing capability.
2. thin-film packing structure according to claim 1, which is characterized in that the organic polymer with self-reparing capability
Object includes -2 Butylurea yl pyrimidines ketone dimer of 6 methyl.
3. thin-film packing structure according to claim 2, which is characterized in that -2 Butylurea yl pyrimidines ketone two of 6 methyl
Aggressiveness includes the first tautomer, and first tautomer is 4 [1H]-pyrimidine one monomers, 4 [the 1H]-pyrimidone
The chemical structure of monomer are as follows:
4. thin-film packing structure according to claim 2, which is characterized in that -2 Butylurea yl pyrimidines ketone two of 6 methyl
Aggressiveness includes the second tautomer, and second tautomer is 6 [1H]-pyrimidine one monomers, 6 [the 1H]-pyrimidone
The chemical structure of monomer are as follows:
5. thin-film packing structure according to claim 2, which is characterized in that -2 Butylurea yl pyrimidines ketone two of 6 methyl
Aggressiveness includes third tautomer, and the third tautomer is pyrimidine -4- alcohol monomer, the pyrimidine -4- alcohol monomer
Chemical structure are as follows:
6. a kind of OLED display panel, which is characterized in that the OLED display panel includes such as any one of claim 1-5 institute
The thin-film packing structure stated.
7. a kind of production method of OLED display panel, which is characterized in that method includes the following steps:
Flexible base board is provided；
The OLED device formed on the flexible base board；
Form the first inorganic thin film for covering the OLED device；
Form the first organic film for covering first inorganic thin film；
Form the second inorganic thin film for covering first organic film；Wherein, the material of composition first organic film is
Organic polymer with self-reparing capability.
8. the production method of OLED display panel according to claim 7, which is characterized in that described that there is self-reparing capability
Organic polymer include -2 Butylurea yl pyrimidines ketone dimer of 6 methyl.
9. the production method of OLED display panel according to claim 8, which is characterized in that formed described with selfreparing
The method of the organic polymer of ability includes inkjet printing, electrofluid spray printing, spin coating and printing.
10. the production method of OLED display panel according to claim 7, which is characterized in that first inorganic thin film
It with the second inorganic thin film include one of silicon nitride, silica, silicon oxynitride, silicon carbide, carbonitride of silicium and aluminium oxide or more
The combination of kind.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910232697.8A CN110048016B (en) | 2019-03-26 | 2019-03-26 | Thin film packaging structure, OLED display panel and manufacturing method thereof |
| PCT/CN2019/087554 WO2020191907A1 (en) | 2019-03-26 | 2019-05-20 | Thin film encapsulation structure, and oled display panel and manufacturing method therefor |
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| CN201910232697.8A CN110048016B (en) | 2019-03-26 | 2019-03-26 | Thin film packaging structure, OLED display panel and manufacturing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111403626A (en) * | 2020-03-26 | 2020-07-10 | 武汉华星光电半导体显示技术有限公司 | O L ED packaging structure, O L ED packaging method and O L ED display device |
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- 2019-05-20 WO PCT/CN2019/087554 patent/WO2020191907A1/en active Application Filing
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111403626A (en) * | 2020-03-26 | 2020-07-10 | 武汉华星光电半导体显示技术有限公司 | O L ED packaging structure, O L ED packaging method and O L ED display device |
| CN111403626B (en) * | 2020-03-26 | 2021-07-06 | 武汉华星光电半导体显示技术有限公司 | OLED packaging structure, OLED packaging method and OLED display device |
| WO2021189539A1 (en) * | 2020-03-26 | 2021-09-30 | 武汉华星光电半导体显示技术有限公司 | Oled packaging structure, oled packaging method, and oled display apparatus |
| US11380870B2 (en) | 2020-03-26 | 2022-07-05 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | OLED encapsulation structure including self-healing encapsulation layer, method of encapsulating thereof, and OLED display device including same |
| EP4131451A4 (en) * | 2020-03-26 | 2024-05-15 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Oled packaging structure, oled packaging method, and oled display apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110048016B (en) | 2020-09-08 |
| WO2020191907A1 (en) | 2020-10-01 |
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