CN108365118B - Flexible Displays mould group - Google Patents
Flexible Displays mould group Download PDFInfo
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- CN108365118B CN108365118B CN201810122814.0A CN201810122814A CN108365118B CN 108365118 B CN108365118 B CN 108365118B CN 201810122814 A CN201810122814 A CN 201810122814A CN 108365118 B CN108365118 B CN 108365118B
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- Prior art keywords
- flexible
- layer
- luminescent layer
- mould group
- displays mould
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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
-
- 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
-
- 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
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/30—Piezoelectric or electrostrictive devices with mechanical input and electrical output, e.g. functioning as generators or sensors
- H10N30/302—Sensors
-
- 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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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The present invention provides a kind of Flexible Displays mould groups, including flexible luminescent layer and piezoelectric film sensor, wherein the flexibility luminescent layer includes the thin-film encapsulation layer from top to bottom successively arranged, OLED luminescent layer and flexible substrates；The piezoelectric film sensor is flexible piezoelectric thin film sensor, including substrate, top electrode, lower electrode and the piezoelectric thin film layer being arranged between the top electrode and the lower electrode；The top electrode, lower electrode and the piezoelectric thin film layer are arranged between the flexible substrates and the substrate；The OLED luminescent layer and the flexible piezoelectric thin film sensor are electrically connected；The Flexible Displays mould group is additionally provided with the protective layer being coated on the outside of the flexible luminescent layer and the piezoelectric film sensor.Flexible Displays mould group of the invention has longer cruise duration；Electric energy needed for converting mechanical energy into Flexible Displays mould group by piezoelectric film sensor simultaneously, clean energy environmental protection, facilitates the popularization and use of Flexible Displays mould group.
Description
Technical field
The present invention relates to a kind of Flexible Displays mould groups, belong to OLED field of display technology.
Background technique
Flexible display apparatus refers to the display device that can be deformed or its shape sensitive paper can be made to change like that；It is flexible
The power deformation that display device can be applied, can be widely used the every field in production, life, therefore Flexible Displays
Device is gradually as next generation's display equipment and by the concern of people.However, just because of flexible display apparatus have it is light,
Thin, the characteristics of can rubbing, therefore there is no the uses that method meets flexible display apparatus for thick in the prior art and bulky power supply.
To solve the above problems, be together in series in the prior art using several battery cells by flexible conducting device, a side
Face is reached for the purpose of the flexible display apparatus power supply；On the other hand, can to a certain extent with flexible display apparatus phase
Match；So set, though the flexible demand of flexible display apparatus can be met to a certain extent, in actual use, when
When flexible display apparatus reverses in any direction, battery cell can distort under the effect of external force, be easy to produce danger；Meanwhile it is soft
Property electric installation is also easy to be broken during distortion, causes the service life of flexible display apparatus to be unable to reach use and wants
It asks, greatly limits the development and popularization of flexible display device.
In view of this, but it is necessary flexible display apparatus in the prior art is further improved, to solve above-mentioned ask
Topic.
Summary of the invention
The purpose of the present invention is to provide a kind of Flexible Displays mould groups, when which has longer continuation of the journey
Between；Electric energy needed for converting mechanical energy into Flexible Displays mould group by piezoelectric film sensor simultaneously, clean energy environmental protection, side
Just the popularization and use of Flexible Displays mould group
For achieving the above object, the present invention provides a kind of Flexible Displays mould groups, including flexible luminescent layer and piezoelectricity
Thin film sensor, wherein it is described flexibility luminescent layer include the thin-film encapsulation layer from top to bottom successively arranged, OLED luminescent layer and
Flexible substrates；The piezoelectric film sensor is flexible piezoelectric thin film sensor, including substrate, top electrode, lower electrode and is set
Set the piezoelectric thin film layer between the top electrode and the lower electrode；The top electrode, lower electrode and the piezoelectric thin film layer
It is arranged between the flexible substrates and the substrate, and the flexible substrates are close to the surface of the side of the OLED luminescent layer
Equipped with conductive layer, the flexible substrates are equipped with the conductive through hole of several regular arrays, are deposited with conduction in the conductive through hole
Material, the conductive layer is electrically connected by the conductive material and the top electrode/lower electrode, to be electrically connected the OLED
Luminescent layer and the flexible piezoelectric thin film sensor；The OLED luminescent layer electrically connects with the flexible piezoelectric thin film sensor
It connects；The Flexible Displays mould group is additionally provided with the protection being coated on the outside of the flexible luminescent layer and the piezoelectric film sensor
Layer.
As a further improvement of the present invention, the top electrode, at least electrode of side and the flexible base in lower electrode
Bottom is bonded by binding material to be arranged, so that the flexibility luminescent layer and the piezoelectric film sensor become one.
As a further improvement of the present invention, the conductive layer includes display driver circuit, pixel-driving circuit and OLED
Anode layer.
As a further improvement of the present invention, the top electrode and the lower electrode are electrically connected；The piezoelectric thin film layer
For using piezoelectric thin film layer made of Kynoar.
As a further improvement of the present invention, it is electrical connected between the OLED luminescent layer and the conductive layer；On described
Electrode, lower electrode are electrically connected by flexible circuit board and the conductive layer.
As a further improvement of the present invention, the OLED luminescent layer or white light OLED hair that the OLED luminescent layer is RGB
Photosphere or Nan dian Yao luminescent layer.
As a further improvement of the present invention, the thin-film encapsulation layer includes at least one layer of organic encapsulation layer and at least one
The inorganic encapsulated layer of layer, the organic encapsulation layer and the inorganic encapsulated layer are arranged alternately.
As a further improvement of the present invention, the thin-film encapsulation layer uses chemical vapor deposition mode and organic printing side
Formula prepares.
As a further improvement of the present invention, the thin-film encapsulation layer is additionally provided with close in OLED luminescent layer setting
Clad, the internal coating are prepared using atomic deposition technique.
The beneficial effects of the present invention are: the OLED that Flexible Displays mould group of the invention is electrically connected each other by setting
Luminescent layer and flexible piezoelectric thin film sensor, by flexible piezoelectric thin film sensor to provide electric power to the OLED luminescent layer,
Mechanical energy during Flexible Displays mould group bending fold is converted into the required electric energy that shines, extends Flexible Displays mould group
Cruise duration；Meanwhile the weight for effectively reducing Flexible Displays mould group facilitates the popularization and use of Flexible Displays mould group with volume.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of Flexible Displays mould group of the present invention.
Fig. 2 is the structural schematic diagram of one embodiment of flexible luminescent layer in Fig. 1.
Fig. 3 is the structural schematic diagram of another embodiment of flexible luminescent layer in Fig. 1
Fig. 4 is the structural schematic diagram of flexible piezoelectric thin film sensor in Fig. 1.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawing to of the invention specific
Embodiment is described in detail.The example of these preferred embodiments is illustrated in the accompanying drawings.Shown in attached drawing and root
It is only exemplary according to the embodiments of the present invention that attached drawing describes, and the present invention is not limited to these embodiments.
Here, it should also be noted that, in order to avoid having obscured the present invention because of unnecessary details, in the accompanying drawings only
Show the structure and/or processing step closely related with the solution of the present invention, and be omitted with relationship of the present invention less its
Its details.
In addition, it should also be noted that, the terms "include", "comprise" or its any other variant be intended to it is non-exclusive
Property include so that include a series of elements process, method, article or equipment not only include those elements, but also
Further include the other elements being not explicitly listed, or further include for this process, method, article or equipment it is intrinsic
Element.
Refering to Figure 1, present invention discloses a kind of Flexible Displays mould group 100, including flexible luminescent layer 1, with it is described
The piezoelectric film sensor 2 and be coated on the flexible luminescent layer and piezoelectric membrane biography that flexible luminescent layer 1 is electrically connected
Protective layer 3 on the outside of sensor.
The flexibility luminescent layer 1 includes the thin-film encapsulation layer 11 from top to bottom successively arranged, OLED luminescent layer 12 and soft
Property substrate 13.The thin-film encapsulation layer 11 is using chemical vapor deposition (CVD) mode and organic printing type in the present invention
The thin-film packing structure prepared, to further decrease flexible luminescent layer 1 while encapsulating OLED luminescent layer 12
Thickness.In one embodiment of the invention, the thin-film encapsulation layer 11 is additionally provided with close to the OLED luminescent layer 12 setting
Internal coating (not shown), and the internal coating is prepared using atomic deposition technique, so set, institute can be effectively improved
The consistency of thin-film encapsulation layer 11 is stated, the package reliability of the thin-film encapsulation layer 11 is further promoted.Certainly in other implementations
It in example, the specific preparation process of the thin-film encapsulation layer 11 and prepares raw material and can select according to actual needs, refused in this
Limitation.It is other
The OLED luminescent layer 12 is successively vaporized on the flexible substrates through evaporation process by mask plate including several layers
OLED functional layer on 13；Further, the OLED luminescent layer 12 can be the OLED luminescent layer or white of RGB in the present invention
Light OLED luminescent layer or Nan dian Yao luminescent layer.
It please refers to shown in Fig. 2, is the structural schematic diagram of flexible luminescent layer 1 of the invention in one embodiment.In this reality
It applies in example, the OLED luminescent layer 12 is Nan dian Yao luminescent layer, further, when the OLED luminescent layer 12 is Nan dian Yao
When luminescent layer, red quantum luminescent layer 113 and green quantum luminescent layer 114 are further respectively had in the thin-film encapsulation layer 11, with
The PPI of flexible luminescent layer 1 of the invention is further promoted, while mitigating the weight of Flexible Displays mould group 100 of the present invention.
It please refers to shown in Fig. 3, for the structural schematic diagram in another embodiment of the flexible luminescent layer 1 of the present invention.In the present embodiment
In, the OLED luminescent layer 12 is white light OLED luminescent layer, at this time the OLED luminescent layer 12 and the thin-film encapsulation layer 11 it
Between be additionally provided with colored filter 115, to guarantee the luminous colour gamut of inventive luminescent layer 1.
It should be noted that in the present invention, the specific assembling of the OLED luminescent layer 12 and the thin-film encapsulation layer 11
And fit structure, it can be selected according to the specifically used requirement of the Flexible Displays mould group 100, above embodiments part is only right
This is illustrated, i.e., a specific embodiment of the invention is not limited to that.
The flexible substrates 13 are using made of polyimide material (PI) or polyethylene terephthalate (PET)
Sheet film, further, in the present invention the flexible substrates 13 close to the side of the OLED luminescent layer 12 surface also
Equipped with conductive layer 131, the conductive layer 131 includes display driver circuit, pixel-driving circuit (tft array) and OLED anode
Layer, further, the conductive layer 131 are electrically connected with the OLED luminescent layer 12.
It please refers to shown in Fig. 4, is the structural schematic diagram of piezoelectric film sensor 2 of the present invention.In the present invention, the piezoelectricity
Thin film sensor 2 is flexible piezoelectric thin film sensor, to guarantee the flexibility of Flexible Displays mould group 100 of the present invention, the flexible pressure
Conductive film sensor 2 includes substrate 21, top electrode 22, lower electrode 23 and is arranged in the top electrode 22 and the lower electrode 23
Between piezoelectric thin film layer 24；The top electrode 22, lower electrode 23 and the piezoelectric thin film layer 24 are arranged in the flexible substrates
Between 13 and the substrate 21.
The substrate 21 is using flexible base board made of polyester material.Further, the top electrode in the present invention
22 is, using metal electrode made of the conductive metallic materials such as aluminium, molybdenum, the lower electrode 23 are using conductions such as chromium, lead, copper, silver
The electrode that one or more of metal is prepared, and be electrically connected between the top electrode 22 and the lower electrode 23；In
In the present invention, at least the electrode of side and the flexible substrates 13 are pasted by binding material in the top electrode 22 and lower electrode 23
Setting is closed, so that the flexibility luminescent layer 1 and the piezoelectric film sensor 2 become one.
Specifically, the top electrode 22, lower electrode 23 pass through flexible circuit board (not shown) and 131 electricity of the conductive layer
Property connection, on the one hand guarantee that top electrode 22 and lower electrode 23 and the OLED luminescent layer 12 and stablizing for the conductive layer 131 connect
It connects；On the other hand, guarantee the flexible connection between the OLED luminescent layer 12 and the flexible piezoelectric thin film sensor 2.
In another embodiment of the invention, the OLED luminescent layer 12 passes through with the flexible piezoelectric thin film sensor 2
Conductive material is electrically connected, and specifically, the OLED luminescent layer 12 passes through conduction material with the flexible piezoelectric thin film sensor 2
When material is electrically connected, the flexible substrates 13 are equipped with the conductive through hole of several regular arrays, and the conductive material is deposited on institute
State the inner wall of conductive through hole；So set, reducing the use of flexible circuit board, the Flexible Displays mould group can effectively avoid
100 in bending deformation process, as deformation quantity it is excessive caused by flexible circuit board fracture, improve in the present invention flexible aobvious
Show the service life of mould group 100；Further, the conductive through hole is to be prepared using through silicon via technology in the present invention,
The technology that the conductive material then passes through PVD, PECVD or MOCVD deposits.
The piezoelectric thin film layer 24 is using piezoelectric thin film layer made of Kynoar (PCDF), in actual application
In, the thickness of the piezoelectric thin film layer 24 can be selected according to actual needs, i.e., the thickness of the described flexible piezoelectric thin film sensor 2
Degree and weight can be realized by controlling the thickness of the piezoelectric thin film layer 24, further reached and promoted heretofore described flexibility
The portability of display module 100 and the purpose of practicability.
The protective layer 3 is coated on the flexible luminescent layer 1 and (the i.e. flexible piezoelectric film of the piezoelectric film sensor 2
Sensor 2) outside, so that the flexibility luminescent layer 1 and the piezoelectric film sensor 2 are wrapped by as an entirety；Further
, in the present invention, the protective layer 3 is a kind of polyacrylate film of the densification prepared using technique for vacuum coating, so
Setting can effectively stop water, inside Oxygen permeation to the Flexible Displays mould group 100, to promote the Flexible Displays mould group 100
Service life.
In use, the flexibility luminescent layer 1 and the piezoelectric membrane sense Flexible Displays mould group 100 of the invention
Device 2 (flexible piezoelectric thin film sensor 2) by the protective layer 3 and the flexible substrates 13 and the electrode (top electrode 22, under
Electrode 23) between binding material be integrated into entirety；It is described soft when rubbing/stretching/when being bent the Flexible Displays mould group 100
Deformation occurs for property piezoelectric film sensor 2, produces between 23 surface of top electrode 22 and lower electrode of 24 two sides of piezoelectric membrane
Raw electric signal (charge or voltage), and the electric signal and the flexible piezoelectric thin film sensor 2 rub/stretch/curved shape
Become ratio；Further, conductive material of the electric signal by the flexible circuit board/be deposited on conductive through hole inner wall
Passing to flexible luminescent layer 1 makes the flexible luminescent layer 1 shine；Reduce external electricity in flexible display apparatus in the prior art
The use of source and/or hard power supply；Meanwhile being rubbed Flexible Displays mould group 100 by setting flexible piezoelectric thin film sensor 2/
Mechanical energy in stretching/bending process is converted into electric energy, can promote Flexible Displays mould group of the present invention in real time for flexible luminescent layer 1
100 scope of application.
In one particular embodiment of the present invention, the Flexible Displays mould group 100 can be applied in computor-keyboard, this
Shi Suoshu Flexible Displays mould group 100 be additionally provided be arranged between the flexible luminescent layer 1 and the piezoelectric film sensor 2 by
Pressurized layer, the flexible luminescent layer 1 described at this time can show all keys on computor-keyboard, when key tap, the piezoelectric membrane
Sensor 2 senses the variation of pressure, and deformation occurs and produces electricl energy, and provides electric energy to be continuously the flexible luminescent layer 1, shows
Show corresponding key.Simultaneously as the foldable bending of computor-keyboard in the present embodiment is placed, so that storage is convenient；And computer
Keyboard can produce electric energy during folded bent to be further ensured that the lasting cruising ability of computor-keyboard.Certainly in other realities
It applies in example, the Flexible Displays mould group 100 can also be provided in the equipment that deformation occurs in other work such as sound equipment, the flexibility
The use scope of display module 100 is not limited in this.
In conclusion the OLED luminescent layer that Flexible Displays mould group 100 of the invention is electrically connected each other by setting
12 and flexible piezoelectric thin film sensor 2, it is to provide electric power to the OLED luminescent layer 12 by flexible piezoelectric thin film sensor 2,
Mechanical energy during 100 bending fold of Flexible Displays mould group is converted into the required electric energy that shines, extends Flexible Displays mould
The cruise duration of group 100；Meanwhile effectively reducing the weight of Flexible Displays mould group 100 and volume facilitates Flexible Displays mould group 100
Popularization and use.Further, it is coated on the protective layer 3 in 2 outside of the flexible luminescent layer 1 and the piezoelectric film sensor
Setting, effectively prevent water, vapour enters in Flexible Displays mould group 100, improve the use of Flexible Displays mould group 100 of the present invention
Service life.
The above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to preferred embodiment to this hair
It is bright to be described in detail, those skilled in the art should understand that, it can modify to technical solution of the present invention
Or equivalent replacement, without departing from the spirit and scope of the technical solution of the present invention.
Claims (9)
1. a kind of Flexible Displays mould group is sensed including flexible luminescent layer and the piezoelectric membrane being electrically connected with the flexible luminescent layer
Device, it is characterised in that: the flexibility luminescent layer includes the thin-film encapsulation layer from top to bottom successively arranged, OLED luminescent layer and soft
Property substrate；The piezoelectric film sensor is flexible piezoelectric thin film sensor, including substrate, top electrode, lower electrode and setting
Piezoelectric thin film layer between the top electrode and the lower electrode；The top electrode, lower electrode and the piezoelectric thin film layer are set
It sets between the flexible substrates and the substrate, and the surface of the flexible substrates close to the side of the OLED luminescent layer is set
There is conductive layer, the flexible substrates are equipped with the conductive through hole of several regular arrays, are deposited with conduction material in the conductive through hole
Material, the conductive layer are electrically connected by the conductive material and the top electrode/lower electrode, to be electrically connected the OLED hair
Photosphere and the flexible piezoelectric thin film sensor；The OLED luminescent layer and the flexible piezoelectric thin film sensor are electrically connected；
The Flexible Displays mould group is additionally provided with the protective layer being coated on the outside of the flexible luminescent layer and the piezoelectric film sensor.
2. Flexible Displays mould group according to claim 1, it is characterised in that: at least side in the top electrode, lower electrode
Electrode setting is bonded by binding material with the flexible substrates so that it is described flexibility luminescent layer and the piezoelectric membrane pass
Sensor becomes one.
3. Flexible Displays mould group according to claim 2, it is characterised in that: the conductive layer include display driver circuit,
Pixel-driving circuit and OLED anode layer.
4. Flexible Displays mould group according to claim 3, it is characterised in that: the top electrode and the lower electrode electrically connect
It connects；The piezoelectric thin film layer is using piezoelectric thin film layer made of Kynoar.
5. Flexible Displays mould group according to claim 4, it is characterised in that: the OLED luminescent layer and the conductive layer it
Between be electrical connected；The top electrode, lower electrode are electrically connected by flexible circuit board and the conductive layer.
6. Flexible Displays mould group according to claim 1, it is characterised in that: the OLED that the OLED luminescent layer is RGB is sent out
Photosphere or white light OLED luminescent layer or Nan dian Yao luminescent layer.
7. Flexible Displays mould group according to claim 1, it is characterised in that: the thin-film encapsulation layer includes at least one layer of
Organic encapsulation layer and at least one layer of inorganic encapsulated layer, the organic encapsulation layer and the inorganic encapsulated layer are arranged alternately.
8. Flexible Displays mould group according to claim 1, it is characterised in that: the thin-film encapsulation layer is formed sediment using chemical gaseous phase
Product mode and organic printing type prepare.
9. Flexible Displays mould group according to claim 8, it is characterised in that: the thin-film encapsulation layer is additionally provided with close to described
The internal coating of OLED luminescent layer setting, the internal coating are prepared using atomic deposition technique.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810122814.0A CN108365118B (en) | 2018-02-07 | 2018-02-07 | Flexible Displays mould group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810122814.0A CN108365118B (en) | 2018-02-07 | 2018-02-07 | Flexible Displays mould group |
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| CN108365118A CN108365118A (en) | 2018-08-03 |
| CN108365118B true CN108365118B (en) | 2019-12-03 |
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| CN201810122814.0A Active CN108365118B (en) | 2018-02-07 | 2018-02-07 | Flexible Displays mould group |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109166890B (en) * | 2018-08-29 | 2022-04-05 | 云谷（固安）科技有限公司 | Flexible display panel, preparation method thereof and flexible display device |
| CN110098233A (en) * | 2019-05-06 | 2019-08-06 | 京东方科技集团股份有限公司 | A kind of display device and its deformation detecting method |
| CN110197844B (en) * | 2019-06-20 | 2021-01-12 | 京东方科技集团股份有限公司 | Display substrate, preparation method thereof, display panel and display device |
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| CN104052329B (en) * | 2014-05-29 | 2017-03-29 | 昆山工研院新型平板显示技术中心有限公司 | A kind of flexible power generating source and its flexible display screen |
| CN105405958B (en) * | 2015-12-23 | 2018-05-08 | 昆山国显光电有限公司 | Piezoelectric membrane encapsulating structure and self power generation flexible display screen |
| CN105655480A (en) * | 2016-01-04 | 2016-06-08 | 京东方科技集团股份有限公司 | Piezoelectric film sensor, piezoelectric film sensor circuit and manufacturing method |
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