CN109273506A - Stretchable display device and preparation method thereof, electronic equipment - Google Patents
Stretchable display device and preparation method thereof, electronic equipment Download PDFInfo
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- CN109273506A CN109273506A CN201811161988.4A CN201811161988A CN109273506A CN 109273506 A CN109273506 A CN 109273506A CN 201811161988 A CN201811161988 A CN 201811161988A CN 109273506 A CN109273506 A CN 109273506A
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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
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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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
- H10K77/00—Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80
- H10K77/10—Substrates, e.g. flexible substrates
- H10K77/111—Flexible substrates
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/549—Organic PV cells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The present invention relates to a kind of stretchable display device and its manufacturing methods, electronic equipment.Stretchable display device includes having the substrate of multiple island separated from one another, and multiple display units are respectively arranged in multiple island；Encapsulating structure includes the first encapsulation film layer and flexible second encapsulation film layer, and the first encapsulation film layer includes multiple first encapsulation units, and every one first encapsulation unit encapsulates a corresponding display unit, and the second encapsulation film layer is covered in the first encapsulation film layer and substrate.Stretchable display device and its manufacturing method, electronic equipment provided by the invention, when substrate is stretched, the first encapsulation unit is not stretched and has stable water resistant oxygen performance, flexible second encapsulation film layer, it is stretched simultaneously with substrate and is not susceptible to breakage, so that packaging effect is good.
Description
Technical field
The present invention relates to field of display technology, more particularly to a kind of stretchable display device and preparation method thereof, electronics
Equipment.
Background technique
As the electronic product that smart phone, wearable device, car-mounted display, AR/VR etc. carry Flexible Displays is quickly sent out
It opens up and universal, is representative with OLED (Organic Light-Emitting Diode, Organic Light Emitting Diode) display device
Flexible display apparatus, just with its display performance, it is frivolous, in terms of exclusive performance advantage, acceleration marches market.And
Recently the stretchable display device with tensility energy has further pushed the development of flexible display apparatus.
In existing stretchable display device, thin-film package is generallyd use to protect the various devices in stretchable display device
Part by moisture, oxygen and other pollutant effects, is not sealed integrally using substrate of the encapsulated layer to stretchable display device
Dress (including covering OLED device), so that it be isolated with external environment reaching protecting effect.
But for the tensile property for guaranteeing stretchable display device, encapsulated layer generallys use elastic organic material and is made, and makes
It is with certain stretch capability, but the isolation water oxygen ability of elastic organic material is poor, therefore causes packaging effect poor.
Summary of the invention
Based on this, it is necessary to be directed to existing stretchable display device, carry out whole envelope to substrate using elastic organic film
Dress, and its to completely cut off water oxygen ability poor, therefore lead to the problem of packaging effect difference, providing a kind of improve the stretchable of the above problem and show
Showing device and preparation method thereof, electronic equipment.
A kind of stretchable display device, including substrate, including multiple island separated from one another；Multiple display units,
It is respectively arranged in the multiple island；
Encapsulating structure, including the first encapsulation film layer, the first encapsulation film layer includes multiple first encapsulation units, Mei Yisuo
State the first encapsulation unit for encapsulate a corresponding display unit；Flexible second encapsulation film layer, is covered in institute
It states in the first encapsulation film layer and the substrate.
Optionally, the first encapsulation film layer includes at least one layer of inorganic encapsulated film layer.
Optionally, the inorganic encapsulated film layer includes metal oxide, nonmetal oxide, fluoride, nitride, nitrogen oxygen
One of compound or any combination thereof.
Optionally, the first encapsulation film layer further includes at least one layer of first organic packages film layer.
Preferably, the first organic packages film layer is located at the outermost of the first encapsulation film layer.
Optionally, the second encapsulation film layer includes at least one layer of second organic packages film layer, second organic packages
Film layer includes organic polymer.
Preferably, the second organic packages film layer includes thermoplastic polyurethane (TPU) or dimethyl silicone polymer
(PDMS)。
Optionally, the stretchable display device further includes a plurality of metal line, and a plurality of metal line is electrically connected to
Multiple display units, and multiple metal lines are set between two adjacent island；Second envelope
The region that dress film layer is covered on a plurality of metal line and is covered between a plurality of metal line.
Stretchable display device production method, comprising:
One substrate is provided；The substrate includes multiple island separated from one another, and multiple display units are respectively arranged at
In multiple island；
The first encapsulation film layer is formed on the substrate；The first encapsulation film layer includes multiple first encapsulation units, Mei Yisuo
State the first encapsulation unit for encapsulate a corresponding display unit；
The second encapsulation film layer is formed on the substrate；It is described second encapsulation film layer be covered in it is described first encapsulation film layer and
In the substrate.
A kind of electronic equipment, which is characterized in that including such as above-mentioned stretchable display device.
Above-mentioned stretchable display device and its manufacturing method, electronic equipment, when substrate is stretched, due to every one first envelope
It fills unit and encapsulates a corresponding display unit, therefore the first encapsulation unit is not stretched, so that the first encapsulation film layer has
Stable water resistant oxygen performance, and flexible second encapsulation film layer is covered in substrate, on the one hand protects island and island
Device between shape body has carried out second protection to display unit not by external environment influence, on the other hand because of second
Encapsulating film layer has elasticity, can be stretched simultaneously when substrate is stretched with substrate, therefore is not susceptible to breakage, so that stretchable
The packaging effect of display device is good.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the stretchable display device in one embodiment of the invention；
Fig. 2 is the schematic cross-sectional view along A-A interception of stretchable display device shown in FIG. 1.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give preferred embodiment of the invention.But the invention can be realized in many different forms, however it is not limited to herein
Described embodiment.On the contrary, purpose of providing these embodiments is keeps the understanding to the disclosure more saturating
It is thorough comprehensive.
One or more embodiments of the invention will be explained in more detail with reference to the drawing, the shape of the element in attached drawing, size, ratio
The elements such as example, angle and quantity are only example, and in various embodiments, identical or corresponding element can be with identical attached drawing
Label is shown, and the repetitive description thereof will be omitted.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
When describing positional relationship, unless otherwise defined, when an element such as layer, film or substrate are regarded as another
When element "upper", intermediary element can may be present directly in other elements or also.Furtherly, when layer is regarded as in another layer
When "lower", one or more middle layers can also may be present directly in lower section.It can also understand, when layer is regarded as at two layers
" between " when, it can be the sole layer between two layers, or one or more middle layers also may be present.
Wherein, when layer is regarded as in another layer " top/upper layer " or " lower section/lower layer ", be with film layer it is overlapping when
On the basis of up and down；That is, film layer is to overlap to be formed one by one in layer, then in rear shape in the manufacture craft of display panel
At film layer be considered as positioned at " top/upper layer " of film layer being previously formed；Accordingly, the film layer being previously formed is considered as
Positioned at " lower section/lower layer " of the film layer in rear formation.
Using " comprising " described herein, " having " and "comprising", unless having used specific restriction
Term, such as " only ", " by ... form " etc., it otherwise can also add another component.Unless refer on the contrary, otherwise singular shape
The term of formula may include plural form, and can not be interpreted as its quantity is one.
It will be appreciated that though term " first ", " second " etc. can be used herein to describe various elements, but these yuan
Part should not be limited by these terms.These terms are only used to distinguish an element and another element.For example, not taking off
In the case where the scope of the present invention, first element can be referred to as second element, and similarly, and second element can be claimed
For first element.
Fig. 1 is the schematic cross-section of the stretchable display device in one embodiment of the invention；For ease of description, attached drawing only shows
Structure relevant to the embodiment of the present invention is gone out.
Refering to attached drawing, stretchable display device 100 includes substrate 10, display unit 20 and encapsulating structure 30.
In some embodiments, substrate 10 may include the organic with other of elasticity and ductility of such as polyimides (PI)
Material.Preferably, substrate 10 may include thermoplastic polyurethane (TPU) material, while with good tensile resistance,
Also there is preferable water resistant oxygen performance.
Substrate 10 includes multiple island 11 separated from one another.For example, multiple island 11 can along first direction and with
The second direction of first direction intersection is arranged to form planar grid pattern.Preferably, first direction is vertical with second direction.
Multiple display units 20 are respectively arranged in multiple island 11.It should be pointed out that single display unit 20 can
Including at least for showing the display element of visible light.
Encapsulating structure 30 includes the first encapsulation film layer 31 and flexible second encapsulation film layer 32.First encapsulation film layer 31
Including multiple first encapsulation units 311, every one first encapsulation unit 311 for encapsulate a corresponding display unit 20, second
Encapsulation film layer 32 is covered in the first encapsulation film layer and substrate 10.
It is appreciated that the shape of island 11 can not change when substrate 10 is stretched, therefore, it is arranged in island 11
On display unit 20 be held stably.
It is to be further understood that every one first encapsulation unit 311 encapsulates a corresponding display unit 20, refer to every 1 the
One encapsulation unit 311 is formed in the top of each island 11 to be individually encapsulated a corresponding display unit 20.
In this way, when substrate 10 is stretched, since every one first encapsulation unit 311 encapsulates a corresponding display unit
20, therefore the first encapsulation unit 311 is not stretched, so that the first encapsulation film layer 31 has stable water resistant oxygen performance, and has
Flexible second encapsulation film layer 32 is covered in substrate 10, on the one hand protects the device between island 11 and island 11
Not by external environment influence, and second protection is carried out to display unit 20, on the other hand because the second encapsulation film layer 32 has
It is flexible, it can be stretched simultaneously with substrate 10 when substrate 10 is stretched, therefore be not susceptible to breakage.
As shown in Fig. 2, for the diagrammatic cross-section intercepted in Fig. 1 along A-A；For ease of description, attached drawing illustrates only and this
The relevant structure of inventive embodiments.
Refering to attached drawing, display unit 20 includes the display area DA and non-display area NDA around the DA of display area, is shown
Show that element is set to display area DA.Each display unit 20 includes at least one for emitting feux rouges, blue and green light or white light
Organic light emitting diode (OLED) 21 and be electrically connected at least one thin film transistor (TFT) (TFT) 22 of at least one OLED.So
And present inventive concept is without being limited thereto, display unit 200 may include any type display element applicatory.
In some embodiments, buffer layer 111 is provided with above island 11, buffer layer 111 is to mention above island 101
For flat surfaces.Buffer layer 111 can specifically include to be closed in the materials such as PET, PEN polyacrylate and/or polyimides
Suitable material forms layer structure in the form that single-layer or multi-layer stacks.It can also be by silica, silicon nitride, aluminium oxide, nitridation
Aluminium, titanium oxide or titanium nitride etc. form the layer structure that single-layer or multi-layer stacks, or may include organic material layer and/or nothing
The composite layer of machine material.
In an embodiment of the present invention, thin film transistor (TFT) 22 may be provided at the top of buffer layer 111.Thin film transistor (TFT) 22 wraps
Include active layer 221, gate electrode 222, source electrode 223 and drain electrode 224.
By taking top-gated type TFT as an example, gate insulating layer 225, grid are equipped between light-emitting active layer 221 and gate electrode 222
Insulating layer 225 is set to the top of active layer 221, and gate electrode 222 is set in the presumptive area of 225 top of gate insulating layer.
Interlayer insulating film 226 is additionally provided with above gate electrode 222, interlayer insulating film 226 makes gate electrode 222 and source electrode 223 insulate, and makes
Gate electrode 222 and drain electrode 224 insulate.The top of interlayer insulating film 226 is arranged in source electrode 223 and drain electrode 224, and interlayer is exhausted
The source region and drain region, source electrode 223 and drain electrode 224 of edge layer 226 and the exposure active layer of gate insulating layer 225 contact exposure respectively
Source region and drain region.In other embodiments, thin film transistor (TFT) 22 can also be bottom gate type.
Further, thin film transistor (TFT) 22 further includes planarization layer 227, and organic light emitting diode 21 is arranged in planarization layer
227 tops.Optionally, planarization layer 227 can be inorganic insulation layer and/or organic insulator, be also possible to comprising inorganic exhausted
The composite stack structure of edge layer and organic insulator.
In an embodiment of the present invention, each display unit 20 include at least one for emit feux rouges, blue and green light or
The organic light emitting diode 21 of white light, to form a sub-pixel.In some embodiments, display unit 20 includes for sending out
The sub-pixel, the sub-pixel for emitting green light and the sub-pixel for emitting blue light of feux rouges are penetrated to form a pixel, another
In one embodiment, display unit 20 includes multiple pixels.
In addition, organic light emitting diode 21 in display unit 20 can there are many arrangement mode, for example, RGB structure, as
Plain arrangement architecture (Pentile) structure and honeycomb etc..
Further, organic light emitting diode 21 may be disposed at the top of planarization layer 227, with first electrode 211,
Middle layer 212 and second electrode 213.
Specifically, first electrode 211 is arranged in 227 top of planarization layer and via the contact hole electricity in planarization layer 227
It is connected to source electrode 223 or drain electrode 224.
Pixel confining layer 214 is also formed with above first electrode 211, pixel confining layer 214 exposes the pre- of first electrode 211
Determine region, at least middle layer 212 with luminescent layer is arranged in the presumptive area of the exposure.In some embodiments, middle layer
212 can also include the functional film layer of such as hole transmission layer, hole injection layer, electron transfer layer, electron injecting layer.Wherein,
As preferable embodiment, each film layer structure of the middle layer 212 of organic light emitting diode 21 can by way of vapor deposition shape
At to improve the performance of organic electroluminescence device.
By taking the display unit 20 of top emission type as an example, second electrode 213 in face of first electrode 211 be arranged, transmissive from
The light of the luminescent layer transmitting of middle layer 212.In other embodiments, display unit 20 may be from middle layer 212 to island
Shape body 11 emits the bottom emitting type reality unit etc. of light, and this is not restricted.
Therefore, the top of second electrode 213 is arranged in the first encapsulation unit 311, water oxygen can be stopped to infiltrate into display unit
Other layers of 20 lower sections.
In some embodiments, the first encapsulation film layer 31 includes at least one layer of inorganic encapsulated film layer.It is corresponding, inorganic encapsulated
Film layer includes multiple inorganic encapsulated units, and each inorganic encapsulated unit encapsulates a corresponding display unit 20.Inorganic encapsulated film
Layer has the ability of barrier water oxygen well, can effectively place external water Oxygen permeation into display unit 20.
Specifically, inorganic encapsulated film layer includes metal oxide, nonmetal oxide, fluoride, nitride, nitrogen oxides
One of or any combination thereof.
When the first encapsulation film layer 31 includes multilayer inorganic encapsulated film layer, different materials is can be used in each inorganic encapsulated film layer
Material or adjacent two layers inorganic encapsulated film layer use different materials.
Preferably, inorganic encapsulated film layer includes silicon oxide or silicon nitride.
Further, the first encapsulation film layer 31 further includes at least one layer of first organic packages film layer.First organic packages film
The organic material of use has good film forming, flatness and a uniformity, thus with after inorganic encapsulated film stack use, can be into
Enhance to one step the protective value of the first encapsulation film layer.In some embodiments, inorganic encapsulated film layer and the first organic packages
The alternately laminated setting of film layer.
Specifically, the first organic packages film layer may include polymethyl methacrylate (PMMA), polycarbonate (PC),
PS, acryl based resin, epoxylite, PI, polyethylene etc..
In some embodiments, the second encapsulation film layer 32 includes at least one layer of second organic packages film layer.Organic material tool
There is good tensility energy, therefore, when substrate 10 is stretched, can be stretched simultaneously with substrate 10, so that the second encapsulation
Film layer 32 is not susceptible to breakage.Specifically, the second organic packages film layer includes organic polymer.Organic polymer has high resiliency
And good insulated shoes and corrosion resistance, therefore force-extension can be better adapted to.
For example, the second organic packages film layer includes thermoplastic polyurethane (TPU) or dimethyl silicone polymer (PDMS).
In some embodiments, the first organic packages film layer is located at the outermost of the first encapsulation film layer 31.At this point, outermost
The first organic packages film layer directly contacted with the second organic packages film layer, since there are between chemical bond and molecule between material
Interaction force so that first encapsulation film layer 31 with second encapsulate film layer 32 be not readily separated, in conjunction with even closer.Preferably,
First organic packages film layer is identical as the material of the second organic packages film layer.
Referring to Fig. 1, in some embodiments, stretchable display device 100 further includes a plurality of metal line 40, more
Metal line 40 is electrically connected to multiple display units 20, and metal line 40 is set between two adjacent island 11.
Specifically, thin film transistor (TFT) 22 is electrically connected to Organic Light Emitting Diode 21, will be used for Organic Light Emitting Diode 21
Signal is applied to thin film transistor (TFT) 22, and metal line 40 is used to receive the signal of driving Organic Light Emitting Diode 21.For example, metal
Wiring 40 may include the first metal line and the second metal line for being connected to thin film transistor (TFT) 22, and the first metal line is used
In scanning signal is applied to thin film transistor (TFT) 22, the second metal line is used to data-signal being applied to thin film transistor (TFT) 22.
It should be pointed out that second encapsulation film layer 32 not only covers when the second encapsulation film layer 32 is covered in substrate 10
Above the first encapsulation film layer 31, and it is covered between the island 11 and island 11 of 10 top of substrate.In this way, the second envelope
Dress film layer 32 is covered on the metal line 40 of 10 top of substrate.
It is appreciated that being covered in hardware cloth when the second encapsulation film layer 32 is covered in the metal line 40 of 10 top of substrate
While on line 40, be also covered in the region between each metal line 40 of the top of substrate 10, therefore, the second encapsulation film layer 32 with
The contact of 10 upper surface of substrate.
In some embodiments, substrate 10 can use same material, such as thermoplastic polyurethane with the second encapsulation film layer 32
(TPU).In this way, substrate 10 can directly be connect in a contact fashion with the second encapsulation film layer 32.
For convenient for further understanding technical solution of the present invention, the present invention also provides a kind of production of stretchable display device
Method.
The production method of stretchable display device in one embodiment of the invention, comprising:
Step S10: providing a substrate 10, and substrate 10 includes multiple island 11 separated from one another, multiple display units
20 are respectively arranged in multiple island 11；
Insulating layer is formed by the methods of spin coating, printing above bearing substrate, the material of insulating layer can be for elasticity
With the organic polymer of ductility, it is preferred that organic polymer can be thermoplastic polyurethane (TPU).Then, in insulating layer
Top can form island 11 by patterning.
Display unit 20 and metal line 40 are formed in the top of island 11.
Step S20: forming the first encapsulation film layer 31 on the substrate 10, and the first encapsulation film layer 31 includes that multiple first encapsulation are single
Member 311, every one first encapsulation unit 311 encapsulate a corresponding display unit 20；
First encapsulation film layer 31 can be the inorganic encapsulated film of single layer, and it includes metal oxide that inorganic encapsulated film, which can be selected, non-
One of metal oxide, fluoride, nitride, nitrogen oxides or any combination thereof, it is preferred that inorganic encapsulated film includes
Silicon oxide or silicon nitride.In other embodiments, the first encapsulation film layer 31 can also be inorganic encapsulated film layer and organic packages film
The stacked structure of layer or the stacked structure of multilayer inorganic encapsulated film layer.
In some embodiments, chemical vapour deposition technique (CVD technology) or ink-jet skill is can be used in the first encapsulation film layer 31
Art (inkjet technology) etc. is formed above each display unit 20.
Step S30: forming the second encapsulation film layer 32 on the substrate 10, and the second encapsulation film layer 32 is covered in the first encapsulation film layer
31 and substrate 10 on.
Second encapsulation film layer 32 can be the organic packages film of single layer, and the material comprising organic polymer can be selected in organic packages film
Material, it is preferred that organic polymer is thermoplastic polyurethane (TPU) or dimethyl silicone polymer (PDMS).
In some embodiments, chemical vapour deposition technique (CVD technology) or ink-jet is can also be used in the second encapsulation film layer 32
The upper formation in the first encapsulation film layer 31 and substrate 10 such as technology (inkjet technology).
Based on above-mentioned stretchable display device 100, the present invention also provides a kind of electronic equipment, including it is above-mentioned stretchable aobvious
Showing device 100.In some embodiments, electronic equipment can be tablet computer or mobile phone etc..
Above-mentioned stretchable display device 100 and its manufacturing method, electronic equipment, when substrate 10 is stretched, due to each
First encapsulation unit 311 encapsulates a corresponding display unit 20, therefore the first encapsulation unit 311 is not stretched, so that the
One encapsulation film layer 31 has stable water resistant oxygen performance, and flexible second encapsulation film layer 32 is covered in substrate 10, and one
Aspect protects the device between island 11 and island 11 not by external environment influence, and carries out to display unit 20
Second protection can be when substrate 10 be stretched, with substrate 10 while quilt on the other hand because the second encapsulation film layer 32 has elasticity
It stretches, therefore is not susceptible to breakage, therefore, the packaging effect of stretchable display device is good.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of stretchable display device characterized by comprising
Substrate, the substrate include multiple island separated from one another；
Multiple display units, the multiple display unit are respectively arranged in the multiple island；
Encapsulating structure, the encapsulating structure include:
First encapsulation film layer, the first encapsulation film layer includes multiple first encapsulation units, and each first encapsulation unit is used
In one corresponding display unit of encapsulation；
Flexible second encapsulation film layer, is covered in the first encapsulation film layer and the substrate.
2. stretchable display device according to claim 1, which is characterized in that the first encapsulation film layer includes at least one
Layer inorganic encapsulated film layer.
3. stretchable display device according to claim 2, which is characterized in that the inorganic encapsulated film layer includes metal oxygen
One of compound, nonmetal oxide, fluoride, nitride, nitrogen oxides or any combination thereof.
4. stretchable display device according to claim 2, which is characterized in that the first encapsulation film layer further includes at least
One layer of first organic packages film layer.
5. stretchable display device according to claim 4, which is characterized in that the first organic packages film layer is located at institute
State the outermost of the first encapsulation film layer.
6. stretchable display device according to claim 1, which is characterized in that the second encapsulation film layer includes at least one
The second organic packages film layer of layer；
The second organic packages film layer includes organic polymer.
7. stretchable display device according to claim 6, which is characterized in that the second organic packages film layer includes heat
Plastic polyurethane (TPU) or dimethyl silicone polymer (PDMS).
8. stretchable display device according to claim 1, which is characterized in that the stretchable display device further includes more
Metal line, a plurality of metal line is electrically connected to multiple display units, and multiple metal lines are set to
Between two adjacent island；
The area that the second encapsulation film layer is covered on a plurality of metal line and is covered between a plurality of metal line
Domain.
9. stretchable display device production method characterized by comprising
One substrate is provided；The substrate includes multiple island separated from one another, and multiple display units are respectively arranged at multiple
In the island；
The first encapsulation film layer is formed on the substrate；The first encapsulation film layer includes multiple first encapsulation units, and each described the
One encapsulation unit is for encapsulating a corresponding display unit；
The second encapsulation film layer is formed on the substrate；The second encapsulation film layer is covered in the first encapsulation film layer and described
In substrate.
10. a kind of electronic equipment, which is characterized in that including stretchable display device as described in any one of claims 1 to 8.
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| CN201811161988.4A CN109273506B (en) | 2018-09-30 | 2018-09-30 | Stretchable display device, manufacturing method thereof and electronic equipment |
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| CN109860205A (en) * | 2019-02-01 | 2019-06-07 | 云谷（固安）科技有限公司 | A kind of display back board structure and stretchable display device |
| CN109872631A (en) * | 2019-03-18 | 2019-06-11 | 京东方科技集团股份有限公司 | A kind of stretchable display module and preparation method thereof and display equipment |
| CN110851028A (en) * | 2019-11-08 | 2020-02-28 | 京东方科技集团股份有限公司 | Flexible stretchable OLED display touch screen device and manufacturing method thereof |
| CN111341210A (en) * | 2020-04-09 | 2020-06-26 | 京东方科技集团股份有限公司 | Display panel, display device, and method for manufacturing display panel |
| CN111785754A (en) * | 2020-06-17 | 2020-10-16 | 固安翌光科技有限公司 | OLED screen body and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109860205A (en) * | 2019-02-01 | 2019-06-07 | 云谷（固安）科技有限公司 | A kind of display back board structure and stretchable display device |
| CN109872631A (en) * | 2019-03-18 | 2019-06-11 | 京东方科技集团股份有限公司 | A kind of stretchable display module and preparation method thereof and display equipment |
| CN110851028A (en) * | 2019-11-08 | 2020-02-28 | 京东方科技集团股份有限公司 | Flexible stretchable OLED display touch screen device and manufacturing method thereof |
| CN110851028B (en) * | 2019-11-08 | 2023-06-16 | 京东方科技集团股份有限公司 | Flexible stretchable OLED display touch screen device and manufacturing method thereof |
| CN111341210A (en) * | 2020-04-09 | 2020-06-26 | 京东方科技集团股份有限公司 | Display panel, display device, and method for manufacturing display panel |
| CN111785754A (en) * | 2020-06-17 | 2020-10-16 | 固安翌光科技有限公司 | OLED screen body and preparation method thereof |
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