CN103915573B - Packaging cover plate, manufacturing method and display device - Google Patents
Packaging cover plate, manufacturing method and display device Download PDFInfo
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- CN103915573B CN103915573B CN201410078371.1A CN201410078371A CN103915573B CN 103915573 B CN103915573 B CN 103915573B CN 201410078371 A CN201410078371 A CN 201410078371A CN 103915573 B CN103915573 B CN 103915573B
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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
Abstract
The invention discloses a packaging cover plate, a manufacturing method and a display device. The packaging cover plate, the manufacturing method and the display device are used for solving the problems that a display device in the prior art is poor in external moisture isolation effect and OLED devices can not be effectively protected. The packaging cover plate comprises a first substrate, a first bonding film layer and a film packaging layer in sequence. According to the technical scheme, through the first bonding film layer, the film packaging layer and spatial structures between at least two bonding film bodies of the first bonding film layer, leakage paths for external moisture to enter the display device are lengthened, and therefore the external moisture is isolated, and OLED devices are protected.
Description
Technical field
The present invention relates to display field, more particularly to a kind of encapsulation cover plate and manufacture method, display device.
Background technology
Compared with showing with the liquid crystal, plasma that are widely used at present, OLED (Organic Light-Emitting
Diode, Organic Light Emitting Diode) because of its self-luminous, rich color, fast response time, visual angle width, lightweight, thickness of thin, power consumption
Less, the advantages of being capable of achieving Flexible Displays receives much concern.
At present, refering in the display device comprising OLED shown in Fig. 1, OLED includes substrate 1, dielectric layer (PI) 2,
And OLED 3.When being packaged to OLED 3, generally in 3 outer formation TFE (Thin Film of OLED
Encapsulation, thin-film package) layer 4, and one layer barrier layer is formed away from the side of OLED 3 in the thin-film encapsulation layer 4
The extraneous steam of isolation is played on (Barrier Film) 5, above-mentioned thin-film encapsulation layer 4 and barrier layer 5, protects OLED 3
Effect.
Refering to shown in Fig. 1, the top of the only cover film encapsulated layer 4 of barrier layer 5, and thin-film encapsulation layer 4 stops extraneous steam
Effect it is limited, therefore, extraneous steam can enter the display device from the side of display device, so as to be unable to reach effectively guarantor
The purpose of shield OLED.
The content of the invention
The embodiment of the present invention provides a kind of encapsulation cover plate and manufacture method, display device, to solve to show in prior art
It is poor to there is the extraneous steam effect of isolation in showing device, it is impossible to the problem of effective protection OLED.
Concrete technical scheme provided in an embodiment of the present invention is as follows：
A kind of encapsulation cover plate, including：
First substrate, including viewing area and non-display area；
First mucous layer, above the first substrate, and includes at least two mucosa bodies, wherein, described at least two
Individual mucosa body is centered around the surrounding of the first substrate respectively；
The first film encapsulated layer, in the non-display area of the first substrate, farthest away from the one of the viewing area
The outside of individual mucosa body.
Preferably, the spacing between per the two neighboring mucosa body is equal, or, near the viscous of the viewing area
Spacing between the mucosa body that film body is adjacent is more than the spacing between other two neighboring mucosa bodies；Wherein, the mucosa
Spacing between body is more than or equal to 5 microns.
Preferably, the mucosa body is along the rectangular cross-section perpendicular to the first substrate.
Further, above-mentioned encapsulation cover plate also includes the second thin-film encapsulation layer, and second thin-film encapsulation layer covers described
The surface region limited near the mucosa body of the viewing area with the first substrate above first substrate.
Further, above-mentioned encapsulation cover plate also includes the 3rd thin-film encapsulation layer, and the 3rd thin-film encapsulation layer covers described
Surface region in the non-display area of first substrate between the adjacent mucosa body.
Further, above-mentioned encapsulation cover plate also includes moisture absorption layer, the moisture absorption layer cover the first film encapsulated layer, the
The side of two thin-film encapsulation layers and the 3rd thin-film encapsulation layer away from the first substrate, for absorbing extraneous steam.
Preferably, the material of the moisture absorption layer is calcium oxide, or Zinc Oxide, and the thickness of the moisture absorption layer is less than or equal to
100 nanometers.
Further, above-mentioned encapsulation cover plate also includes the second mucous layer, and second mucous layer covers second thin film
Above encapsulated layer, and in the viewing area of the first substrate, for fixing OLED.
Preferably, the first substrate adopts polyethylene terephthalate transparent material, or adopt poly- naphthalene diformazan
The transparent material of sour glycol ester.
A kind of display device, including encapsulation cover plate as above, and second be oppositely arranged with the encapsulation cover plate
Substrate, the organic light emitting diode device being arranged on the second substrate, wherein：
The encapsulation cover plate covers the organic light emitting diode device；
The organic light emitting diode device is located between the second substrate and the encapsulation cover plate.
Further, above-mentioned display device also includes the thin-film transistor element layer being arranged on the second substrate, with
And the dielectric layer between the organic light emitting diode device and the thin-film transistor element layer.
A kind of method for making above-mentioned encapsulation cover plate, including：
The first mucous layer is formed in the upper surface of first substrate, first mucous layer includes at least two mucosa bodies, its
In, at least two mucosas body is centered around the surrounding of the first substrate respectively；
Protection film layer is formed away from the upper surface of the first substrate at least two mucosas body；
The protection film layer away from the mucosa body side, the mucosa body side surface and the first substrate it is upper
Surface deposits thin film layer, and forms the first film encapsulated layer using patterning processes；Wherein, the first film encapsulated layer position
In the first substrate upper surface farthest away from a mucosa body of the viewing area outside；
Remove the protection film layer of the mucosa body away from the first substrate side.
Preferably, the protection film layer away from the mucosa body side, the mucosa body side surface and described first
The upper surface of substrate forms the inorganic film of thin layer using vapour deposition CVD techniques；Or, in the protection film layer away from institute
The upper surface for stating the side of mucosa body, the mucosa body side surface and the first substrate adopts ald ALD technique shapes
Into the inorganic film of thin layer；And the protection film layer away from the mucosa body side, the mucosa body side surface and
The upper surface of the first substrate forms the organic film of thin layer using vapour deposition CVD techniques；Or, in the protecting film
The upper surface of side of the layer away from the mucosa body, the mucosa body side surface and the first substrate is formed using evaporation process
The organic film of thin layer.
Further, said method also includes：The protection film layer away from the mucosa body side, the mucosa body
The upper surface deposition thin film layer of side and the first substrate, forms the second thin-film encapsulation layer, institute using patterning processes
State the second thin-film encapsulation layer and cover mucosa body and the first substrate above the first substrate near the viewing area
The surface region of restriction.
Further, second thin-film encapsulation layer away from the first substrate and the protection film layer side shape
Into moisture absorption layer, for absorbing extraneous steam.
Preferably, forming second mucous layer away from the side of first mucous layer in the moisture absorption layer, described second glues
Film layer is located in the viewing area of the first substrate, for fixing OLED.
Further, said method also includes：The protection film layer away from the mucosa body side, the mucosa body
The upper surface deposition thin film layer of side and the first substrate, forms the 3rd thin-film encapsulation layer, institute using patterning processes
State the 3rd thin-film encapsulation layer and cover the surface region in the non-display area of the first substrate between the adjacent mucosa body.
In the embodiment of the present invention, encapsulation cover plate successively include first substrate, the first mucous layer, thin-film encapsulation layer, moisture absorption layer,
And second mucous layer.Using above-mentioned technical proposal, by the first mucous layer, thin-film encapsulation layer, and the first mucous layer is extremely
Space structure between few two mucosa bodies extends extraneous steam into the permeation pathway of display device, and moisture absorption layer can reach
The effect of extraneous steam is absorbed, so as to reach the extraneous steam of isolation, the purpose of OLED is protected.
Description of the drawings
Fig. 1 is OLED display structural representation in prior art；
Cross section structure schematic diagrams one of the Fig. 2 for one encapsulation cover plate of the embodiment of the present invention；
Overlooking the structure diagrams of the Fig. 3 for one encapsulation cover plate of the embodiment of the present invention；
Fig. 4 a and Fig. 4 b is encapsulation cover plate cross section structure schematic diagram of the embodiment of the present invention one comprising three mucosa bodies；
Fig. 5 is the cross section structure schematic diagram of the first film encapsulated layer in the embodiment of the present invention one；
Fig. 6 is the cross section structure schematic diagram two of encapsulation cover plate in the embodiment of the present invention one；
Cross section structure schematic diagrams one of the Fig. 7 for two encapsulation cover plate of the embodiment of the present invention；
Fig. 8 a and Fig. 8 b is encapsulation cover plate cross section structure schematic diagram of the embodiment of the present invention two comprising three mucosa bodies；
Fig. 9 is the cross section structure schematic diagram of the first film encapsulated layer in the embodiment of the present invention two；
Figure 10 is display device interfacial structure schematic diagram in the embodiment of the present invention；
Figure 11 is the schematic flow sheet of making encapsulation cover plate in the embodiment of the present invention；
Figure 12 be the embodiment of the present invention in complete the first mucous layer make after encapsulation cover plate cross section structure schematic diagram one；
Figure 13 be the embodiment of the present invention in complete protection film layer make after encapsulation cover plate cross section structure schematic diagram two；
Figure 14 illustrates for the cross section structure that the encapsulation cover plate after the first film encapsulated layer makes is completed in the embodiment of the present invention
Figure.
Specific embodiment
It is poor in order to solve the extraneous steam effect of display device presence isolation in prior art, it is impossible to effective protection OLED
Problem.In the embodiment of the present invention, encapsulation cover plate includes first substrate, the first mucous layer, thin-film encapsulation layer successively.Using above-mentioned
Technical scheme, the space knot by the first mucous layer, between at least two mucosa bodies of thin-film encapsulation layer, and the first mucous layer
Structure extends extraneous steam into the permeation pathway of display device, so as to reach the extraneous steam of isolation, protects OLED
Purpose.
The embodiment of the present invention is described in further detail with reference to Figure of description.
Embodiment one
Refering to the cross section structure schematic diagram for shown in Fig. 2, being the encapsulation cover plate that the embodiment of the present invention one is provided.As shown in Fig. 2
The encapsulation cover plate that embodiment one is provided includes first substrate 1, the first mucous layer 6, and the first film encapsulated layer 7.
Specifically, first substrate 1 includes viewing area 101 and non-display area 102, and viewing area 101 is used to cover aobvious
Show device, first substrate 1 can be made using polyethylene terephthalate transparent material, it would however also be possible to employ poly- naphthalenedicarboxylic acid
The transparent material of glycol ester makes.Above-mentioned first mucous layer 6, the first film encapsulated layer 7 are respectively positioned on the non-display of first substrate 1
Region 102.Wherein, the first mucous layer 6, above first substrate 1, and includes at least two mucosa bodies 60, and this at least two
Mucosa body 60 is centered around the surrounding of first substrate 1 respectively, for extending extraneous steam into 1 viewing area 101 of first substrate
Permeation pathway (Fig. 2 is the encapsulation cover plate only schematic diagram comprising two mucosa bodies 60)；The first film encapsulated layer 7, positioned at the first base
In the non-display area 102 of plate 1, farthest away from the outside of a mucosa body 601 of the viewing area 101, for intercepting extraneous water
Vapour.
In embodiment one, the first mucous layer 6 includes at least two mucosa bodies 60, as at least two mucosas body 60 encloses
The surrounding of first substrate is wound on, therefore, certain space structure 61 will be formed between at least two mucosas body 60, when extraneous steam
When entering encapsulation cover plate by side, space structure 61 will play a part of to extend steam permeation pathway.Fig. 3 is referred to, is this
When two mucosa bodies 60 are only existed in bright embodiment one, the top view of encapsulation cover plate.Refering to shown in Fig. 3, the two of the first mucous layer 6
Individual mucosa body 60 is located at the surrounding of first substrate 1 in " returning " font, and space structure 61 is located at outermost mucosa body 601 and most inner side
Between mucosa body 602.Figure shown in Fig. 3 is encapsulation cover plate structural representation shown in Fig. 2 along the cross section structure of AA '.
Fig. 4 a and Fig. 4 b are referred to, is that the encapsulation cover plate cross section structure comprising three mucosa bodies shows in the embodiment of the present invention one
It is intended to.In the encapsulation cover plate, the spacing between every two neighboring mucosa body 60 is equal, i.e., in encapsulation cover plate shown in Fig. 4 a,
Mucosa body 601 is adjacent with mucosa body 602, and mucosa body 602 is adjacent with mucosa body 603, wherein, mucosa body 601 and mucosa body 602 it
Between spacing be equal to spacing between mucosa body 602 and mucosa body 603, or, near viewing area 101 mucosa body 60 with
Spacing between its adjacent mucosa body 60 is being encapsulated shown in Fig. 4 b more than the spacing between other two neighboring mucosa bodies 60
In cover plate, mucosa body 603 is the mucosa body near viewing area 101, then between mucosa body 603 and adjacent mucosa body 602
Spacing is more than the spacing between mucosa body 602 and mucosa body 601.When film bulk structure viscous using latter, due near display
Spacing between the mucosa body 60 that the mucosa body 60 in region 101 is adjacent is maximum, enters so as to further extend extraneous steam
Enter the permeation pathway of 1 viewing area 101 of first substrate, serve the effect for preferably intercepting extraneous steam.
Preferably, in the embodiment of the present invention one, the spacing between the mucosa body 60 of the first mucous layer 6 is more than or equal to 5 microns.
Additionally, the spacing between each mucosa body 60 of the first mucous layer 6 there is also higher limit, the higher limit and the encapsulation cover plate phase
The size of the display device matched somebody with somebody is adapted.Additionally, the mucosa body 60 of above-mentioned first mucous layer 6 is along cutting perpendicular to first substrate 1
Face is rectangle.
Fig. 5 is referred to, is the cross section structure schematic diagram of the first film encapsulated layer 7 in the embodiment of the present invention one.Refering to Fig. 5 institutes
Show, organic film 8 and inorganic film 9 that the first film encapsulated layer 7 is arranged alternately comprising multilamellar, wherein inorganic film 9 are first
The outermost layer of thin-film encapsulation layer 7, innermost layer of the inorganic film 9 for the first film encapsulated layer 7.In the prior art, in order to reach
Extraneous steam, the effect of protection OLED are intercepted, during the first thinner package film layer 7 is made, the first film is encapsulated
Layer 7 needs to reach certain thickness, and each organic film 8 or inorganic film 9 are required to mask (mask) technique
Formed, therefore, the thickness of the first film encapsulated layer 7 is bigger, and the masking process number of times adopted by making the first film encapsulated layer 7 is got over
It is many, so as to improve cost of manufacture and production time.When the encapsulation cover plate provided using the present invention, due to above-mentioned cap
Structures comprising the extraneous steam of multiple isolations in plate, therefore, organic film 8 that the first film encapsulated layer 7 is included and inorganic
The number of plies of film layer 9 is less compared to prior art, so as to the masking process adopted when reducing and making the first film encapsulated layer 7
Number of times, is effectively simplified the processing technology of encapsulation cover plate.
Further, Fig. 6 is referred to, is the cross section structure schematic diagram of encapsulation cover plate in the embodiment of the present invention one.Refering to Fig. 6
Shown, above-mentioned encapsulation cover plate also includes the second thin-film encapsulation layer 10, and second thin-film encapsulation layer 10 is located at the display of first substrate 1
In region 101, for intercepting extraneous steam.Preferably, also wrapping away from the side of first substrate 1 in the second thin-film encapsulation layer 10
Moisture absorption layer 11 is included, for absorbing extraneous steam, the viewing area that extraneous steam is entered encapsulation cover plate by top and side is intercepted
101.Preferably, the material of above-mentioned moisture absorption layer 11 is calcium oxide, or Zinc Oxide, and the thickness of the moisture absorption layer 11 is less than or equal to
100 nanometers.
Further, refering to shown in Fig. 6, above-mentioned encapsulation cover plate also includes the second mucous layer 12, covers the second packaging film
Side of the layer 10 away from first substrate 1, or covering absorbent layer 11 is away from the side of the second thinner package film layer 10, it is aobvious for bonding
Show device.
The encapsulation cover plate provided using embodiment one, when extraneous steam along the direction of arrow shown in Fig. 6 by encapsulation cover plate
When side enters the encapsulation cover plate, first by the first film encapsulated layer 7, the first film encapsulated layer 7 will to external world for extraneous steam
Steam is intercepted, and makes a part of external world's steam cannot be introduced into the encapsulation cover plate；Extraneous steam is hindered through the first film encapsulated layer 7
Every a part afterwards, is still suffered from through the first film encapsulated layer 7, now, by between each mucosa body 60 of the first mucous layer 6
Space structure 61, extend the permeation pathway of the extraneous steam of above-mentioned entrance encapsulation cover plate；Above-mentioned extraneous steam is tied through space
After structure 61, into the second thin-film encapsulation layer 10, the second thin-film encapsulation layer 10 is by the extraneous steam above by space structure 61
Intercepted, make a part for remaining external world's steam cannot be introduced into the viewing area 101 of first substrate 1；Sealed by the second thin film
Remaining a small amount of external world's steam is entered moisture absorption layer 11 by the obstruct external world steam function of dress layer 10, and the moisture absorption layer 11 will absorb above-mentioned
Remaining a small amount of external world's steam, so as to serve the effect of the extraneous steam of good obstruct.
Embodiment two
Refering to the cross section structure schematic diagram for shown in Fig. 7, being the encapsulation cover plate that the embodiment of the present invention two is provided.As shown in fig. 7,
The encapsulation cover plate that embodiment two is provided includes first substrate 1, the first mucous layer 6, and the first film encapsulated layer 7 and the 3rd thin film
Encapsulated layer 13.
Specifically, first substrate 1 includes viewing area 101 and non-display area 102, and viewing area 101 is used to cover aobvious
Show device, above-mentioned first substrate 1 can be made using polyethylene terephthalate transparent material, it would however also be possible to employ poly- naphthalene two
The transparent material of formic acid glycol ester makes.Above-mentioned first mucous layer 6, the first film encapsulated layer 7, the 3rd thin-film encapsulation layer 13 are equal
Positioned at the non-display area 102 of first substrate 1.Wherein, the first mucous layer 6, above first substrate 1, and includes at least two
Individual mucosa body 60, at least two mucosas body 60 are centered around the surrounding of first substrate 1 respectively, enter for extending extraneous steam
The permeation pathway (Fig. 2 is the encapsulation cover plate only schematic diagram comprising two mucosa bodies 60) of 1 viewing area 101 of first substrate；First
Thin-film encapsulation layer 7, in the non-display area 102 of first substrate 1, farthest away from a mucosa body 601 of the viewing area 101
Outside, for intercepting extraneous steam；3rd thin-film encapsulation layer 13, it is adjacent viscous in the non-display area 102 of covering first substrate 1
Surface region between film body 60.
In embodiment two, the first mucous layer 6 includes at least two mucosa bodies 60, as at least two mucosas body 60 encloses
The surrounding of first substrate is wound on, therefore, certain space structure 61 will be formed between at least two mucosas body 60, when extraneous steam
When entering encapsulation cover plate by side, space structure 61 will play a part of to extend steam permeation pathway.
Refer to shown in Fig. 8 a and 8b, be the signal of the encapsulation cover plate section comprising three mucosa bodies in the embodiment of the present invention two
Figure.In the encapsulation cover plate, the spacing between every two neighboring mucosa body 60 is equal, i.e., in encapsulation cover plate shown in Fig. 8 a, glue
Film body 601 is adjacent with mucosa body 602, and mucosa body 602 is adjacent with mucosa body 603, wherein, between mucosa body 601 and mucosa body 602
Spacing be equal to spacing between mucosa body 602 and mucosa body 603；Or, near viewing area 101 mucosa body 60 and its
Spacing between adjacent mucosa body 60 is more than the spacing between other two neighboring mucosa bodies 60, i.e., in cap shown in Fig. 8 b
In plate, mucosa body 603 is the mucosa body near viewing area 101, then between mucosa body 603 and adjacent mucosa body 602 between
Away from more than the spacing between mucosa body 602 and mucosa body 601.When film bulk structure viscous using latter, due near viewing area
Spacing between the mucosa body 60 that the mucosa body 60 in domain 101 is adjacent is maximum, enters so as to further extend extraneous steam
The permeation pathway of 1 viewing area 101 of first substrate, serves the effect for preferably intercepting extraneous steam.
Preferably, in the embodiment of the present invention two, the spacing between the mucosa body 60 of the first mucous layer 6 is more than or equal to 5 microns.
Additionally, the spacing between each mucosa body of the first mucous layer 6 there is also higher limit, the higher limit is matched with the encapsulation cover plate
Display device size be adapted.Additionally, the mucosa body 60 of above-mentioned first mucous layer 6 is along perpendicular to the section of first substrate 1
For rectangle.
Further, Fig. 9 is referred to, is the cross section structure schematic diagram of the first film encapsulated layer in the embodiment of the present invention two.
Refering to shown in Fig. 9, in the embodiment of the present invention two, above-mentioned encapsulation cover plate also includes the second thin-film encapsulation layer 10, and second thin film is sealed
Dress layer 10 is located in the viewing area 101 of first substrate 1, for intercepting extraneous steam.Preferably, in the second thin-film encapsulation layer 10
Away from the side of first substrate 1, and the 3rd thin-film encapsulation layer 10 away from first substrate 1 side, comprising moisture absorption layer 11,
For absorbing extraneous steam, the viewing area that steam is entered encapsulation cover plate by top and side is intercepted.Preferably, above-mentioned moisture absorption
The material of layer 11 is that calcium oxide, or Zinc Oxide, and the thickness of the moisture absorption layer 11 are less than or equal to 100 nanometers.
Further, in the embodiment of the present invention two, refering to shown in Fig. 9, above-mentioned encapsulation cover plate also includes the second mucous layer 12,
Side of the second thinner package film layer 10 away from first substrate 1, or covering absorbent layer 11 are covered away from the second thinner package film layer 10
Side, for bonding display device.
The encapsulation cover plate provided using embodiment two, when extraneous steam along the direction of arrow shown in Fig. 9 by encapsulation cover plate
When side enters encapsulation cover plate, first by the first film encapsulated layer 7, the first film encapsulated layer 7 will be to the external world for extraneous steam
Steam is intercepted, and makes a part of external world's steam cannot be introduced into the encapsulation cover plate；After the first film encapsulated layer 7 is intercepted,
A part of external world's steam is still suffered from through the first film encapsulated layer 7, now, the is passed through to above-mentioned by the 3rd thin-film encapsulation layer 13
The extraneous steam of one thin-film encapsulation layer 7 is further intercepted, and makes a small amount of external world's steam pass through the 3rd thin-film encapsulation layer 13；Inhaling
In wet layer 11, near the side of the first film encapsulated layer 7, steam is further filtered to external world；Filter through moisture absorption layer 11
Extraneous steam pass through space structure 61 when, space structure 61 extends the infiltration road of the extraneous steam of above-mentioned entrance encapsulation cover plate
Footpath；After the above-mentioned extraneous steam through space structure 61 is reached, reach in moisture absorption layer 11 away from the one of the first thinner package film layer 6
Side, 11 pairs of extraneous steam above by space structure 61 of the moisture absorption layer absorb；By moisture absorption layer 11 and space structure
61 extraneous steam enters the second thin-film encapsulation layer 10, and the second thin-film encapsulation layer 10 will intercept to the extraneous steam, and make to remain
Besides a part for boundary's steam cannot be introduced into the viewing area 101 of first substrate 1；Outside obstruct by the second thin-film encapsulation layer 10
Remaining a small amount of external world's steam is entered moisture absorption layer 11 by boundary's steam function, and the moisture absorption layer 11 will absorb above-mentioned remaining a small amount of external world's water
Vapour, so as to serve the effect of the extraneous steam of good obstruct.
Refering to shown in Figure 10, the embodiment of the present invention also provides a kind of display device, and the display device includes as above
Encapsulation cover plate 14, and the second substrate 15 being oppositely arranged with encapsulation cover plate 14, the organic light emission being arranged on second substrate 15
Diode component 16.
Specifically, encapsulation cover plate 14 covers organic light emitting diode device 16, for protecting organic luminescent device 16；It is organic
LED device 16 is located between second substrate 15 and encapsulation cover plate 14.
Figure 10 is referred to, above-mentioned display device also includes the thin-film transistor element layer 17 for being arranged on second substrate 14,
And the dielectric layer 18 between organic light emitting diode device 15 and thin-film transistor element layer 17.
Based on above-mentioned encapsulation cover plate, refering to shown in Figure 11, the embodiment of the present invention also provides a kind of making above-mentioned encapsulation cover plate
Method, the method includes：
Step 1100：The first mucous layer 6 is formed in the upper surface of first substrate 1.
In the embodiment of the present invention, the first mucous layer 6 is formed using upper surface of the spray technology in first substrate 1, wherein, the
One mucous layer 6 includes at least two mucosa bodies 60, and at least two mucosas body 60 is centered around the surrounding of first substrate 1 respectively,
The encapsulation cover plate of the first mucous layer 6 is formed refering to shown in Figure 12.
Step 1110：Protection film layer 19 is formed away from the upper surface of first substrate 1 in above-mentioned at least two mucosas body 60.
In the embodiment of the present invention, protection film layer is formed away from the upper surface of first substrate in above-mentioned at least two mucosas body 60
19, the protection film layer 19 plays the function of protection mucosa body 60, forms the encapsulation cover plate of protection film layer 19 refering to shown in Figure 13.
Step 1120：Protection film layer 19 away from mucosa body 60 side, 60 side of mucosa body and first substrate 1 it is upper
Surface deposits thin film layer, and forms the first film encapsulated layer 7 using patterning processes.
In the embodiment of the present invention, protection film layer 19 away from mucosa body 60 side, the side of mucosa body 60 and first
The upper surface of substrate 1 forms the first film encapsulated layer 7.Wherein, the first film encapsulated layer 7 be located at first substrate 1 upper surface most
Away from the outside of a mucosa body 60 of viewing area 101, the encapsulation cover plate for forming the first film encapsulated layer 7 refers to Figure 14 institutes
Show.
With reference to shown in Fig. 5, as the first film encapsulated layer 7 includes organic film 8 and inorganic film 9, therefore, form first
The process of thin-film encapsulation layer 7 is the process for forming organic film 8 and inorganic film 9, specially：In first substrate 1 and guarantor
The top of cuticular layer 19 forms the inorganic film 9 of the first film encapsulated layer 7 using vapour deposition (CVD) technique；Or, first
The top of substrate 1 and protection film layer 19 forms the inorganic film of the first film encapsulated layer 7 using ald (ALD) technique
9；And having for the first film encapsulated layer 7 is formed using gas-phase deposition in the top of first substrate 1 and protection film layer 19
Machine film layer 8；Or, the first film encapsulated layer 7 is formed using evaporation process in the top of first substrate 1 and protection film layer 19
Organic film 8.
Step 1130：Remove protection film layer 19 of the mucosa body 60 away from 1 side of first substrate.
In the embodiment of the present invention, protecting film of the mucosa body 60 away from 1 side of first substrate is removed using taping process
Layer 19, removes the encapsulation cover plate after protection film layer 19 refering to shown in Fig. 2.
Preferably, protection film layer 19 away from mucosa body 60 side, the upper table of 60 side of mucosa body and first substrate 1
Face deposits thin film layer, forms the second thin-film encapsulation layer 10 using patterning processes, and the second thin-film encapsulation layer 10 covers the first base
The surface region limited near the mucosa body 60 of viewing area 10 with first substrate 1 above plate 1.
Further, protection film layer 19 away from mucosa body 60 side, 60 side of mucosa body and first substrate 1 it is upper
Surface deposits thin film layer, forms the 3rd thin-film encapsulation layer 13 using patterning processes, and the 3rd thin-film encapsulation layer 13 covers first
Surface region in the non-display area 102 of substrate 1 between adjacent mucosa body 60, the encapsulation cover plate structural representation refer to Fig. 7
It is shown.
Preferably, the second thin-film encapsulation layer 10 away from first substrate 1 side, it is and remote in the 3rd thin-film encapsulation layer 10
From the side of first substrate 1, moisture absorption layer 11 is formed using sputtering technology or gas-phase deposition, for absorbing extraneous steam,
Intercept the viewing area that steam is entered encapsulation cover plate by top and side.
Further, second mucous layer 12, second mucous layer 12 are formed away from the side of the first mucous layer 6 in moisture absorption layer 11
In the viewing area 101 of first substrate 1, the structural representation of the encapsulation cover plate is refering to shown in Fig. 9.
In sum, in the embodiment of the present invention, encapsulation cover plate includes first substrate, including viewing area and non-display area
Domain；First mucous layer, above first substrate, and includes at least two mucosa bodies, wherein, at least two mucosas body is distinguished
It is centered around the surrounding of first substrate；The first film encapsulated layer, in the non-display area of first substrate, farthest away from viewing area
A mucosa body outside；Moisture absorption layer, between at least two mucosa bodies of the first mucous layer.Using the technology of the present invention side
Case, by the first mucous layer, the space structure between at least two mucosa bodies of thin-film encapsulation layer, and the first mucous layer extends
Extraneous steam enters the permeation pathway of display device, and moisture absorption layer can reach the effect for absorbing extraneous steam, so as to reaching
The extraneous steam of isolation, protects the purpose of OLED.
Obviously, those skilled in the art can carry out various changes and modification without deviating from this to the embodiment of the present invention
The spirit and scope of bright embodiment.So, if these modifications of the embodiment of the present invention and modification belong to the claims in the present invention
And its within the scope of equivalent technologies, then the present invention is also intended to comprising these changes and modification.
Claims (17)
1. a kind of encapsulation cover plate, including：
First substrate, including viewing area and non-display area；
First mucous layer, above the first substrate, and includes at least two mucosa bodies, wherein, described at least two glue
Film body is centered around the surrounding of the first substrate respectively；
The first film encapsulated layer, in the non-display area of the first substrate, farthest away from the viewing area glues
The outside of film body；
3rd thin-film encapsulation layer, the 3rd thin-film encapsulation layer cover adjacent described viscous in the non-display area of the first substrate
Surface region between film body.
2. encapsulation cover plate as claimed in claim 1, it is characterised in that the spacing phase between per the two neighboring mucosa body
Deng, or, near the spacing between the mucosa body and the mucosa body that is adjacent of the viewing area more than other adjacent two
Spacing between individual mucosa body；Wherein, the spacing between the mucosa body is more than or equal to 5 microns.
3. encapsulation cover plate as claimed in claim 1, it is characterised in that the mucosa body is along cutting perpendicular to the first substrate
Face is rectangle.
4. encapsulation cover plate as claimed in claim 1, it is characterised in that also including the second thin-film encapsulation layer, second thin film
Encapsulated layer covers the surface limited near the mucosa body of the viewing area with the first substrate above the first substrate
Region.
5. encapsulation cover plate as claimed in claim 4, it is characterised in that also including moisture absorption layer, the moisture absorption layer cover described the
The side of two thin-film encapsulation layers and the 3rd thin-film encapsulation layer away from the first substrate.
6. encapsulation cover plate as claimed in claim 5, it is characterised in that the material of the moisture absorption layer is calcium oxide, or oxidation
Zinc.
7. encapsulation cover plate as claimed in claim 5, it is characterised in that the thickness of the moisture absorption layer is less than or equal to 100 nanometers.
8. encapsulation cover plate as claimed in claim 5, it is characterised in that also including the second mucous layer, second mucous layer covers
Cover above second thin-film encapsulation layer, and in the viewing area of the first substrate.
9. the encapsulation cover plate as described in any one of claim 1-8, it is characterised in that the first substrate adopts poly- terephthaldehyde
Sour glycol ester transparent material, or using the transparent material of PEN.
10. a kind of display device, it is characterised in that include the encapsulation cover plate as described in any one of claim 1-9, and with institute
The second substrate that encapsulation cover plate is oppositely arranged is stated, the organic light emitting diode device being arranged on the second substrate, wherein：
The encapsulation cover plate covers the organic light emitting diode device；
The organic light emitting diode device is located between the second substrate and the encapsulation cover plate.
11. display devices as claimed in claim 10, it is characterised in that also including the thin film being arranged on the second substrate
Transistor element layers, and the dielectric between the organic light emitting diode device and the thin-film transistor element layer
Layer.
A kind of 12. methods for making encapsulation cover plate as claimed in claim 1, it is characterised in that methods described includes：
The first mucous layer is formed in the upper surface of first substrate, first mucous layer includes at least two mucosa bodies, wherein, institute
State the surrounding that at least two mucosa bodies are centered around the first substrate respectively；
Protection film layer is formed away from the upper surface of the first substrate at least two mucosas body；
The protection film layer away from the mucosa body side, the upper surface of the mucosa body side surface and the first substrate
Deposition thin film layer, and the first film encapsulated layer is formed using patterning processes；Wherein, the first film encapsulated layer is located at institute
State the outside of the upper surface of first substrate farthest away from a mucosa body of the viewing area；
Remove the protection film layer of the mucosa body away from the first substrate side.
13. methods as claimed in claim 12, it is characterised in that the protection film layer away from the mucosa body side,
The upper surface deposition thin film layer of the mucosa body side surface and the first substrate, specifically includes：
The protection film layer away from the mucosa body side, the upper surface of the mucosa body side surface and the first substrate
The inorganic film of thin layer is formed using vapour deposition CVD techniques；Or, in the protection film layer away from the one of the mucosa body
The upper surface of side, the mucosa body side surface and the first substrate forms the nothing of thin layer using ald ALD techniques
Machine film layer；And
The protection film layer away from the mucosa body side, the upper surface of the mucosa body side surface and the first substrate
The organic film of thin layer is formed using vapour deposition CVD techniques；Or, in the protection film layer away from the one of the mucosa body
The upper surface of side, the mucosa body side surface and the first substrate forms the organic film of thin layer using evaporation process.
14. methods as claimed in claim 12, it is characterised in that also include：
The protection film layer away from the mucosa body side, the upper surface of the mucosa body side surface and the first substrate
Deposition thin film layer, forms the second thin-film encapsulation layer using patterning processes, and second thin-film encapsulation layer covers described first
The surface region that surface is limited near the mucosa body of the viewing area with the first substrate.
15. methods as claimed in claim 14, it is characterised in that in second thin-film encapsulation layer away from the first substrate
Side formed moisture absorption layer.
16. methods as claimed in claim 15, it is characterised in that in the moisture absorption layer away from second thin-film encapsulation layer
Side forms the second mucous layer, and second mucous layer is located in the viewing area of the first substrate.
17. methods as claimed in claim 12, it is characterised in that also include：
The protection film layer away from the mucosa body side, the upper surface of the mucosa body side surface and the first substrate
Deposition thin film layer, forms the 3rd thin-film encapsulation layer using patterning processes, and the 3rd thin-film encapsulation layer covers described first
Surface region in the non-display area of substrate between the adjacent mucosa body.
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| CN201410078371.1A CN103915573B (en) | 2014-03-05 | 2014-03-05 | Packaging cover plate, manufacturing method and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104201291A (en) * | 2014-08-26 | 2014-12-10 | 京东方科技集团股份有限公司 | Organic electroluminescent device and manufacturing method thereof |
| CN205723639U (en) | 2016-04-19 | 2016-11-23 | 鄂尔多斯市源盛光电有限责任公司 | A kind of sealed plastic box structure, display floater and display device |
| CN107170902B (en) * | 2017-05-26 | 2019-04-02 | 深圳市华星光电半导体显示技术有限公司 | The packaging method of packaging film and preparation method thereof and oled panel |
| CN109698285A (en) * | 2017-10-23 | 2019-04-30 | 昆山维信诺科技有限公司 | Bonding method, mechanism and the display panel of thin-film packing structure and the film that blocks water |
| CN109994642A (en) * | 2017-12-29 | 2019-07-09 | 昆山维信诺科技有限公司 | Encapsulating structure and preparation method thereof and Organnic electroluminescent device |
| CN114303184A (en) * | 2019-08-30 | 2022-04-08 | 华为技术有限公司 | Display screen and terminal equipment |
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