CN108878487A - Display device and preparation method thereof - Google Patents
Display device and preparation method thereof Download PDFInfo
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- CN108878487A CN108878487A CN201810671863.XA CN201810671863A CN108878487A CN 108878487 A CN108878487 A CN 108878487A CN 201810671863 A CN201810671863 A CN 201810671863A CN 108878487 A CN108878487 A CN 108878487A
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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
- H10K59/40—OLEDs integrated with touch screens
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
-
- 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
-
- 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
-
- 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
- H10K59/1201—Manufacture or treatment
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
This application discloses a kind of display device and preparation method thereof, which includes providing a flexible display, and glue is coated on flexible display；A flexible battery is formed, flexible battery is flexible display power supply；Flexible battery is fitted in into flexible display by glue by rolling technology.By the above-mentioned means, the application can reduce the weight of flexible display device, and the ultrathin of flexible display device may be implemented.
Description
Technical field
This application involves field of display technology, more particularly to a kind of display device and preparation method thereof.
Background technique
Lead the way person of the flexible display device as next generation display part is not only acknowledged as can replace existing display production
Product also create many novel application markets and lead the Fast Growth of entire display field.Compared to traditional hard screen display
Device, flexible display device have can free deformation, low-power consumption is ultralight ultra-thin, the technical advantages such as breakage-proof shatter-resistant, application field
It is concentrated mainly on portable wearable device, intelligent terminal, commercial propaganda equipment and military equipment etc..
For example portable wrist-watch of intelligent wearable device, bracelet and and flexible mobile phone be current flexible display device it is mostly important and
Most it is hopeful to realize that the application direction of scale of mass production, the G-Flex mobile phone of the S7egde mobile phone of Samsung, LG company all make
With AM flexible display flexible.However these flexible display devices are only to be bent under fixed radius of curvature or only
Edge moderately be bent, there is no truly realize Flexible Displays in can free deformation, the concepts such as foldable.Realize intelligence
The flexibility of energy mobile phone or wrist-watch truly is also faced with the challenge of following three aspects：
1. the stress that flexible display screen itself is born in the bent state also needs to drop by the design of structure and processing procedure
It is low；2. the power supply that flexible electronic product currently on the market uses is still the lithium battery of inflexibility, in this way in mobile phone
Design on be necessarily required to reserve the space of battery assembly, not only increase mobile phone weight and thickness, and make mobile phone always
Cannot achieve truly can alternating bending and fold.How to realize the integration of flexible screen and flexible power supply power supply is
Determine the key technology of flexible mobile phone or wrist-watch application potential.
Summary of the invention
The application provides a kind of display device and preparation method thereof, can reduce the weight of flexible display device, and can
To realize the ultrathin of flexible display device.
In order to solve the above technical problems, the technical solution that the application uses is：A kind of preparation of display device is provided
Method, the preparation method include：One flexible display is provided, and is coated with glue on the flexible display；Form one
Flexible battery, the flexible battery are flexible display power supply；The flexible battery passed through by rolling technology described
Glue fits in the flexible display.
In order to solve the above technical problems, another technical solution that the application uses is：A kind of display device is provided, it is described
Display device includes flexible display and flexible battery, and the flexible battery fits in the flexible display by glue,
Think the flexible display power supply.
The beneficial effect of the application is：A kind of touch panel and preparation method thereof is provided, by by flexible display and soft
Property battery is integrated into one piece of self-powered flexible display apparatus, without designing extra assembly space for power supply, alleviates
The weight of flexible display device, and the ultrathin of flexible display device may be implemented.
Detailed description of the invention
Fig. 1 is the flow diagram of one embodiment of the application display device preparation method；
Fig. 2 is the flow diagram of one embodiment of the application flexible display preparation method；
Fig. 3 is the structural schematic diagram of one embodiment of the application flexible display；
Fig. 4 is the flow diagram of mono- embodiment of step S2 in the application；
Fig. 5 is the flow diagram of mono- embodiment of step S21 in the application；
Fig. 6 is the structural schematic diagram of one embodiment of the application flexible battery；
Fig. 7 is the flow diagram of mono- embodiment of step S23 in the application；
Fig. 8 is the structural schematic diagram of one embodiment of the application display device assembly method；
Fig. 9 is the structural schematic diagram of one embodiment of the application display device.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiment of the application, instead of all the embodiments.It is based on
Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall in the protection scope of this application.
Referring to Fig. 1, Fig. 1 is the flow diagram of one embodiment of the application display device preparation method.Such as this Shen Fig. 1
The preparation method for the display device that please be provided includes the following steps：
S1 provides a flexible display, and is coated with glue on flexible display.
It is please the flow diagram of one embodiment of the application flexible display preparation method further combined with Fig. 2, Fig. 2,
If Fig. 2, step S1 further comprise following sub-step：
S11, forms functional layer in the second flexible substrate, and functional layer includes luminescent layer.
In conjunction with Fig. 3, Fig. 3 is the structural schematic diagram of one embodiment of the application flexible display, such as Fig. 3, in the present embodiment
The material of second flexible substrate layer 201 can use polyimides (Polyimide, PI) or dimethyl silicone polymer
One of (Polydimethylsiloxane, PDMS), does not further limit herein.Polyimides is used in the present embodiment
As the first flexible substrate material.
Functional layer A is further prepared in the second flexible substrate 110, optionally, functional layer further comprises film crystal
Tube layer (TFT) 120, OLED luminescent layer 130.Wherein, OLED luminescent layer 130 can specifically include hole transmission layer, luminescent layer with
Electron transfer layer (figure does not show), the specific configuration of TFE layer 120 may refer to general construction in the prior art, not exist herein
It repeats.Wherein, the second flexible substrate 110 is coated with glue far from the side of functional layer A, for being pasted with flexible battery
It closes.In the present embodiment, glue 200, which can use, has colorless and transparent, light transmission rate good in 90% or more, cementing strength,
It can solidify under room temperature or medium temperature, and have OCA (the Optically Clear Adhesive) optics for the features such as cure shrinkage is small
Glue.
S12 forms the second encapsulated layer on a functional.
Optionally, the second encapsulated layer 140 and flexible plastic cement cover board 150 are formed on functional layer A, wherein the second encapsulated layer
140 for being packaged flexible display 100, and flexible plastic cement cover board 150 is for protecting the flexible display 100.
In addition, further including having printed circuit board (Flexible Printed Circuit in the flexible display 100
Board, FPC) (not shown), and it is set to the pin (not shown) of functional layer A on FPC circuit board, which is used for and soft
Property battery on corresponding pin be connected, to realize the self-contained electric system of Flexible Displays and flexible power supply integration.
S2, forms a flexible battery, and flexible battery is flexible display power supply.
Referring to fig. 4, step S2 further comprises following sub-step：
S21 forms first electrode layer in the first flexible substrate, wherein first electrode layer includes first electrode pin.
First electrode layer B in the present embodiment includes collective's fluid layer 320, first electrode pin a and first electrode material
Layer 330.
Referring to Fig. 5, step S21 further comprises following sub-step：
S211 forms current collector layers in the first flexible substrate.
Referring to Figure 6 together, Fig. 6 is the structural schematic diagram of one embodiment of the application flexible battery.It is first in the present embodiment
A underlay substrate is first provided, which can be the transparent substrates such as glass substrate, not further limit herein.In substrate
Coating polyimide film (PI) is on substrate to form the first flexible substrate 310.
Further the single-layer graphene of chemical vapor deposition techniques (CVD) preparation will be used from copper foil using wet process transfer techniques
On be transferred in the first flexible substrate 310, transfer three times formed three layers of graphene-structured, to form collective's fluid layer 320.Wherein,
Collective's fluid layer 320 uses three layers of graphene-structured, and light transmittance is up to 90% or more, and its surface resistance is minimized.
In the present embodiment, flexible battery is using the flawless of chemical vapor deposition techniques preparation, ultra-thin and has height
Electric conductivity graphene enhances electronic transmission performance as collector, improves battery high rate performance and power density, aobvious to flexibility
Show that the power supply of device is also more stable, and due to the higher Young's modulus of graphene, the bending amount of battery device is enhanced, so that whole
A flexible display can keep stable performance in the state of bending repeatedly.
First electrode is deposited on collective's fluid layer to form first electrode pin in S212.
First electrode (gold electrode) further is deposited on collective's fluid layer 320, to form first electrode pin a.
S213 forms first electrode material layer on collective's fluid layer.
First electrode material layer 330 (anode) is formed on collective's fluid layer 320 by the way of magnetron sputtering, first electricity
Pole material layer 330 can use cobalt-lithium oxide (LiCoO2).
S22 forms electrolyte layer in first electrode layer.
In step S22, specifically in the first electrode material layer 330 in first electrode layer B by the way of magnetron sputtering
Electrolyte layer 340 is formed, which can be solid LiPON (LiPON).
S23, forms the second electrode lay on the electrolyte layer, and the second electrode lay includes second electrode pin.
The second electrode lay C in the present embodiment includes second electrode material layer 350 and second electrode pin b, referring to figure
7, step S23 further comprise following sub-step：
S231 forms second electrode material layer on the electrolyte layer.
The second electrode material layer 350 (cathode) that lithium metal is formed on electrolyte layer 340 is adopted vapor deposition method, and should
Step needs to complete in the glove box full of nitrogen, to prevent lithium metal to be oxidized.
Second electrode is deposited in second electrode material layer to form second electrode pin in S232.
It adopts vapor deposition method and forms second electrode (gold electrode) in second electrode material layer 350 to form second electrode
Pin b.Wherein, first electrode pin a is corresponding on printed circuit board in flexible display 100 respectively with second electrode pin
Pin is connected, to form Flexible Displays/flexibility power supply integration self-contained electric system.And the flexible battery 300 it is fully charged after i.e.
The OLED luminescent layer 130 of flexible display 100 can be driven to shine and reach Flexible Displays effect.
S24 forms the first encapsulated layer on the second electrode layer.
First encapsulated layer 360 can be dimethyl silicone polymer (PDMS).
S25 removes the first flexible substrate to form flexible battery.
The first flexible substrate 310 is stripped down from underlay substrate with laser lift-off technique, forms flexible self-supporting
Lithium ion battery (flexible battery).
In other embodiments, the material of the first flexible substrate can also use dimethyl silicone polymer (PDMS), and the
One electrode layer can be integrated into layer of material layer with collective's fluid layer, i.e. the material of first electrode layer can be steeped using three-dimensional grapheme
The composite material of foam and LiFePO 4, wherein LiFePO 4 can be using hydro-thermal method in three-dimensional graphene foam surface original
Position is grown.
The preparation of flexible battery is similar with the preparation method in first embodiment, the specific preparation of battery in the present embodiment
Process is that second electrode material layer is deposited on the first flexible substrate (PDMS), which is lithium metal as soft
Property battery cathode, and second electrode (gold electrode) is deposited simultaneously as second electrode pin, the magnetic in second electrode material layer
Control sputtering solid-state electrolyte layer (LiPON), is coated with first electrode material layer, the first electrode material layer and whole with collective fluid layer
It is combined into layer of material layer, that is, three-dimensional graphene foam/lithium ferrous phosphate composite material is used, further with another piece of flexibility PDMS
Material is packaged flexible battery device.And the flexible battery after encapsulation formation, glue can be passed through with flexible display
It is bonded, to form self-powered flexible display apparatus.
Flexible battery is fitted in flexible display by glue by rolling technology by S3.
Referring to Fig. 8, after prepared by flexible display 100 and flexible battery 300, the second of flexible display 100
The side of the separate functional layer of flexible substrate 110 coats glue 200, then 300 first flexible substrate 310 of flexible battery is faced
Face is fitted on flexible display 100, then uses rolling technology, and flexible display 100 and flexible battery 300 is made to be bonded pressure
It is real.Flexible display 100 and flexible battery 300 are gradually bonded using rolling technology in the present embodiment, can be prevented soft
Property display 100 and flexible battery 300 between fitting out-of-flatness phenomena such as leading to bubble.The first electrode layer of flexible battery 300
And the second electrode lay passes through first electrode pin respectively and second electrode pin is drawn, and is connected to the flexibility of flexible display 100
On the corresponding pin of printed circuit board (FPC), completion Flexible Displays are integrated with flexible power supply integration.
In the application, flexible display and flexible battery are integrated into one piece of self-powered flexible display apparatus, applied
In intelligence mobile phone or wrist-watch, without designing extra assembly space for power supply, the weight of flexible display device is alleviated, and
The ultrathin of flexible display device may be implemented.It, can be in addition, flexible display and flexible battery use same flexible substrate
Bending is synchronized, display device is enabled to realize flexible truly.
With continued reference to Fig. 9, the application also provides a kind of display device, and display device includes flexible display 100 and flexibility
Battery 300, flexible battery 300 fit in flexible display 100 by glue 200, for the power supply of flexible display 100.
Wherein, the first flexible substrate 310, first electrode layer B, electricity be can specifically include incorporated by reference to flexible battery 300 in Fig. 6
Solve matter layer 340, the second electrode lay C and the first encapsulated layer 360.
Optionally, first electrode layer B is formed in the first flexible substrate 310, including first electrode pin.
Electrolyte layer 340 is formed on first electrode layer B.The second electrode lay C formed on electrolyte layer 340 include second
Electrode pin；First encapsulated layer 360 is formed on the second electrode lay C to be packaged to flexible battery 300.
In the present embodiment, the material of the first flexible substrate layer 310 of flexible battery 300 can use polyimides or poly- two
One of methylsiloxane (PDMS).And in the present embodiment, first electrode layer B may include current collector layers and first electrode material
The bed of material, wherein the material of current collector layers can select ultra-thin and three layers of graphene with high conductivity, and electronics can be enhanced
Transmission performance improves battery high rate performance and power density, also more stable to the power supply of flexible display, and due to graphite
The higher Young's modulus of alkene enhances the bending amount of battery device, so that entire flexible display in the state of bending repeatedly
It can keep stable performance.
In addition, the current collector layers and first electrode material layer in first electrode layer B in other embodiments can be integrated into
Layer of material uses the composite material of three-dimensional graphene foam and LiFePO 4, wherein LiFePO 4 can use water
Thermal method is grown in three-dimensional graphene foam surface in situ.
Wherein, the specific structure of flexible battery 300 and principle please be detailed in the specific descriptions in one embodiment of flexible battery,
Details are not described herein again.
Flexible display 100 may include the second flexible substrate 110, functional layer A and the second encapsulated layer stacked gradually
140, the first flexible substrate 110 is adhered to the second flexible substrate 310 by glue 200.Wherein, functional layer A includes film crystalline substance
Body tube layer 120, OLED luminescent layer 130.Wherein, OLED luminescent layer 130 can specifically include hole transmission layer, luminescent layer and electronics
Transport layer.Second flexible substrate 110 is coated with glue 200 far from the side of functional layer A, for carrying out with flexible battery 300
Fitting.
Wherein, the specific structure of flexible display 100 and principle please be detailed in specifically retouching in flexible display embodiment
It states, details are not described herein again.
In above embodiment, filled by the way that flexible display and flexible battery are integrated into one piece of self-powered Flexible Displays
It sets, applies in intelligence mobile phone or wrist-watch, without designing extra assembly space for power supply, alleviate flexible display device
Weight, and the ultrathin of flexible display device may be implemented.In addition, flexible display and flexible battery use same flexibility
Substrate can synchronize bending, and display device is enabled to realize flexible truly.
In conclusion leading to it should be readily apparent to one skilled in the art that the application provides a kind of display device and preparation method thereof
It crosses and flexible display and flexible battery is integrated into one piece of self-powered flexible display apparatus, it is extra without being designed for power supply
Assembly space, alleviate the weight of flexible display device, and the ultrathin of flexible display device may be implemented.
The foregoing is merely presently filed embodiments, are not intended to limit the scope of the patents of the application, all to utilize this
Equivalent structure or equivalent flow shift made by application specification and accompanying drawing content, it is relevant to be applied directly or indirectly in other
Technical field similarly includes in the scope of patent protection of the application.
Claims (10)
1. a kind of preparation method of display device, which is characterized in that the preparation method includes：
One flexible display is provided, and is coated with glue on the flexible display；
A flexible battery is formed, the flexible battery is flexible display power supply；
The flexible battery is fitted in into the flexible display by the glue by rolling technology.
2. preparation method according to claim 1, which is characterized in that the step of one flexible battery of the formation includes：
First electrode layer is formed in the first flexible substrate, wherein the first electrode layer includes first electrode pin；
Electrolyte layer is formed in the first electrode layer；
The second electrode lay is formed on the electrolyte layer, wherein the second electrode lay includes second electrode pin；
The first encapsulated layer is formed on the second electrode lay；
First flexible substrate is removed to form the flexible battery.
3. preparation method according to claim 2, which is characterized in that described to form first electrode in the first flexible substrate
Layer include：
Current collector layers are formed in first flexible substrate；
First electrode is deposited on collective's fluid layer to form first electrode pin；
First electrode material layer is formed on collective's fluid layer.
4. preparation method according to claim 3, which is characterized in that described to form second electrode on the electrolyte layer
Layer include：
Second electrode material layer is formed on the electrolyte layer；
Second electrode is deposited in the second electrode material layer to form second electrode pin；
Wherein, the first electrode pin is electrically connected with the flexible display respectively with the second electrode pin.
5. preparation method according to claim 3, which is characterized in that the material of the current collector layers is graphene.
6. preparation method according to claim 2, which is characterized in that the material of the first electrode layer is three-dimensional grapheme
The composite material of foam and LiFePO 4.
7. preparation method according to claim 1, which is characterized in that the preparation method of the flexible display includes：
Functional layer is formed in the second flexible substrate, the functional layer includes luminescent layer；
The second encapsulated layer is formed in the functional layer；
Wherein, second flexible substrate is coated with glue far from the side of the functional layer, is used for and the flexible battery
Fitting.
8. a kind of display device, which is characterized in that the display device includes flexible display and flexible battery, the flexible electrical
Pond fits in the flexible display by glue, for flexible display power supply.
9. display device according to claim 8, which is characterized in that the flexible battery includes：
First flexible substrate；
First electrode layer is formed in first flexible substrate, including first electrode pin；
Electrolyte layer is formed in first electrode layer；
The second electrode lay is formed on the electrolyte layer, including second electrode pin；
First encapsulated layer is formed on the second electrode lay, to be packaged to the flexible battery.
10. display device according to claim 8, which is characterized in that the flexible display includes stacked gradually
Two flexible substrates, functional layer and the second encapsulated layer, first flexible substrate are adhered to second flexible liner by glue
Bottom.
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| CN201810671863.XA CN108878487B (en) | 2018-06-26 | 2018-06-26 | Display device and method for manufacturing the same |
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| CN201810671863.XA CN108878487B (en) | 2018-06-26 | 2018-06-26 | Display device and method for manufacturing the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111554189A (en) * | 2020-05-15 | 2020-08-18 | 京东方科技集团股份有限公司 | Flexible display device |
| CN111900106A (en) * | 2020-06-30 | 2020-11-06 | 中国电子科技集团公司第五十五研究所 | Large-area flexible substrate InP HBT device and preparation method thereof |
| CN114495725A (en) * | 2022-03-14 | 2022-05-13 | 武汉华星光电半导体显示技术有限公司 | Flexible display device |
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| CN108878487B (en) | 2021-03-30 |
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