CN107068906A - Flexible display panels and preparation method thereof and display device - Google Patents
Flexible display panels and preparation method thereof and display device Download PDFInfo
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- CN107068906A CN107068906A CN201710295146.7A CN201710295146A CN107068906A CN 107068906 A CN107068906 A CN 107068906A CN 201710295146 A CN201710295146 A CN 201710295146A CN 107068906 A CN107068906 A CN 107068906A
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- flexible
- display panels
- layer
- flexible display
- magnetosphere
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/844—Encapsulations
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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
-
- 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
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/80—Manufacture or treatment specially adapted for the organic devices covered by this subclass using temporary substrates
Abstract
The invention discloses a kind of flexible display panels and preparation method thereof and display device, to reduce when peeling off underlay substrate, in flexible display panels between each film layer break-off generation, improve the display effect of flexible display panels, improve and prepare yield rate.Wherein flexible display panels, including：Flexible base board, flexible base board includes at least one layer of flexible layer；Thin film transistor (TFT) array on flexible base board, thin film transistor (TFT) array includes：Grid layer, active layer, source layer and drain electrode layer；Cushion, cushion is located between flexible base board and thin film transistor (TFT) array；Wherein, flexible display panels also include magnetosphere, and magnetosphere is located at active layer and on the direction perpendicular to flexible base board, relative to active layer between one layer of farthest flexible layer.
Description
Technical field
The present invention relates to display preparing technical field, more particularly to a kind of flexible display panels and preparation method thereof and aobvious
Showing device.
Background technology
Liquid crystal display (LCD) technology has development by leaps and bounds in last decade, from quality of the size of screen to display all
Have made great progress, with the development of flexible display technologies, be more nearly the Flexible Displays product of traditional display pattern quickly
Also common people house will be entered into, due to itself distinctive flexible feature of Flexible Displays, determines that it has many special
Consumer's Experience.
In the prior art when preparing flexible display using it is more be to paste the method for removing, common technical process is
Each part in flexible display is prepared on the glass substrate, then by both sides applying vacuum absorption affinity by flexible display
Each part and glass substrate separation, as shown in figure 1, being sequentially overlapped to form flexible substrate layer 01, cushion on glass substrate 010
02nd, array layer 03, evaporation layer (organic luminous layer) 04, first inorganic layer 05, organic layer 06, the second inorganic layer 07, tack coat 08
And cover sheet 09, it is necessary to apply on cover sheet and glass substrate when by flexible display and glass substrate separation
Opposite effect power (as shown by arrows in FIG.) is so that the two to be separated.
But, this separate mode, for easy between the weaker layer of adhesion in each part in flexible display
Disengaging is produced, for example, weaker easy produce of cohesive force between layer and encapsulated layer or array layer is deposited and separates, flexibility can be so influenceed
The display effect of display, even results in flexible display and damages failure.
The content of the invention
The invention provides a kind of flexible display panels and preparation method thereof and display device, to reduce at peeling liner bottom
During substrate, in flexible display panels between each film layer break-off generation, improve flexible display panels display effect, improve
Prepare yield rate.
To reach above-mentioned purpose, the present invention provides following technical scheme：
The invention provides a kind of flexible display panels, including：
Flexible base board, the flexible base board includes at least one layer of flexible layer；
Thin film transistor (TFT) array on the flexible base board, the thin film transistor (TFT) array includes：It is grid layer, active
Layer, source layer and drain electrode layer；
Cushion, the cushion is located between the flexible base board and the thin film transistor (TFT) array；Wherein,
The flexible display panels also include magnetosphere, and the magnetosphere is located at the active layer and perpendicular to described soft
Property substrate direction on, between one layer of flexible layer farthest relative to active layer distance.
The flexible display panels that the present invention is provided, by setting magnetosphere between cushion and active layer so that flexible
Display panel produces an active force to magnetosphere in preparation process by applying magnetic field, the direction of the active force with by substrate
Suffered power is in opposite direction when substrate is stripped, and active force acts on magnetosphere, is so located at each film above magnetosphere
Layer between will not segregated active force, preferable connective stability can be kept.
Therefore, the flexible display panels that the present invention is provided, it is possible to reduce in preparation process when peeling off underlay substrate, flexibility is aobvious
Show the generation of break-off between each film layer in panel, improve the display effect of flexible display panels, improve and prepare yield rate.
In some optional embodiments, a fixed potential is applied with the magnetosphere, the magnetosphere is multiplexed with
Electrostatic screen layer.Magnetosphere can also play a part of to flexible display panels electrostatic protection.
In some optional embodiments, the fixed potential applied on the magnetosphere is earthing potential.
In some optional embodiments, the flexible display panels include flexible PCB, the flexible PCB
Apply the fixed potential to the magnetosphere.Such structure is simpler, connects more convenient.
In some optional embodiments, the flexible base board includes at least two sheets of flexible layer, and the magnetosphere is located at
Between flexible layer described in any two layers.
In some optional embodiments, the magnetosphere is located between the flexible base board and the cushion.
In some optional embodiments, the cushion includes at least two layers film layer, and the magnetosphere is located at any
Between film layer described in two layers.
In some optional embodiments, the magnetosphere is ferromagnetic material layers.
In some optional embodiments, the magnetosphere includes matrix and filler, and the filler is scattered in institute
State in matrix, and the filler has magnetic.Such structure design, it is possible to reduce the hair of flexible display panels electric discharge phenomena
It is raw.
It is soft described in above-mentioned any one for preparing present invention also offers a kind of preparation method of flexible display panels
Property display panel, including
One underlay substrate is provided；
The flexible display panels are formed on the underlay substrate, wherein, the flexibility of the flexible display panels
Substrate is formed on the underlay substrate；
Apply the first magnetic field on the direction perpendicular to the underlay substrate, first magnetic fields are in described flexible aobvious
Show the magnetosphere of panel, the underlay substrate and the flexible display panels are peeled off.
In some optional embodiments, first magnetic fields are in the magnetosphere of the flexible display panels
Process include,
First magnetic field produces an active force for the magnetosphere, and the direction of the active force is perpendicular to the lining
The side of substrate is upwardly away from the underlay substrate, in the presence of the active force, and the underlay substrate and the flexibility are aobvious
Show that panel is separated.
In some optional embodiments, the preparation method also includes,
After the underlay substrate is peeled off, diaphragm is placed close to the side of the underlay substrate in the flexible base board；
Apply the second magnetic field on the direction perpendicular to the flexible base board, and along parallel to the flexible base board
Side moves up second magnetic field, and the diaphragm is attached at into the flexible base board in the presence of second magnetic field
On.Diaphragm is attached in this way, each film layer in flexible display panels can be avoided to be under pressure, and reduces Flexible Displays
The generation of each film layer damage phenomenon in panel, while the attaching integrality of diaphragm can be improved.
The embodiment of the present invention also provides a kind of display device, including above-mentioned flexible display panels.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the present invention, this hair
Bright schematic description and description is used to explain the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is structural representation of the flexible display provided in the prior art in preparation process；
Fig. 2 is a kind of structural representation of flexible display panels provided in an embodiment of the present invention；
Fig. 3 is a kind of structural representation of the flexible display panels provided in an embodiment of the present invention in preparation process；
Fig. 4 is another structural representation of flexible display panels provided in an embodiment of the present invention；
Fig. 5 is another structural representation of flexible display panels provided in an embodiment of the present invention；
Fig. 6 is the yet another construction schematic diagram of flexible display panels provided in an embodiment of the present invention；
Fig. 7 is the flow chart of flexible display panels provided in an embodiment of the present invention；
Fig. 8 is another structural representation of the flexible display panels provided in an embodiment of the present invention in preparation process；
Fig. 9 is the simulation number of the active force that is subject to of the flexible display panels provided in an embodiment of the present invention in preparation process
According to；
Figure 10 is the structural representation of display device provided in an embodiment of the present invention.
In figure：
01- flexible substrate layers
02- cushions
03- array layers
Layer is deposited in 04-
The inorganic layers of 05- first
06- organic layers
The inorganic layers of 07- second
08- tack coats
09- cover sheets
010- glass substrates
1- flexible base boards
11- flexible layers
2- thin film transistor (TFT) arrays
21- light shield layers
22- active layers
23- gate insulators
24- grid layers
25- insulating barriers
26- source layers and drain electrode layer
3- cushions
31- film layers
4- magnetospheres
Layer is deposited in 5-
6- encapsulated layers
7- cover sheets
8- tack coats
9- underlay substrates
10- diaphragms
100- display devices
200- display panels
The magnetic fields of B1- first
The magnetic fields of B2- second
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.
As shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, the embodiments of the invention provide a kind of flexible display panels, including：
Flexible base board 1, flexible base board 1 includes at least one layer of flexible layer 11；
Thin film transistor (TFT) array 2 on flexible base board 1, thin film transistor (TFT) array 2 includes：Grid layer 24, active layer
22nd, source layer and drain electrode layer 26；
Cushion 3, cushion 3 is located between flexible base board 1 and thin film transistor (TFT) array 2；Wherein,
Flexible display panels also include magnetosphere 4, and magnetosphere 4 is located at active layer 22 and in the side perpendicular to flexible base board 1
Upwards, relative to active layer 22 between one layer of farthest flexible layer 11.
The flexible display panels that the present invention is provided, by setting magnetosphere 4 between cushion 3 and active layer 22 so that
Flexible display panels are in preparation process, as shown in figure 3, producing an active force, the active force to magnetosphere 4 by applying magnetic field
Direction and power suffered when underlay substrate 9 is stripped it is in opposite direction (as shown in arrow A in Fig. 3 and arrow B, wherein arrow
Head A represents active force, and arrow B represents peeling force), and active force acts on magnetosphere 4, is so located at the top of magnetosphere 4
Between each film layer 31 will not segregated active force, preferable connective stability can be kept.
Therefore, the flexible display panels that the present invention is provided, it is possible to reduce flexible in preparation process when peeling off underlay substrate 9
In display panel between each film layer 31 break-off generation, improve the display effect of flexible display panels, raising prepares finished product
Rate.
Above-mentioned peeling force can be applied on underlay substrate 9 by vacuum absorption device.The Flexible Displays that the present invention is provided
Panel also includes being located at is deposited layer 5, the encapsulated layer 6 on evaporation layer 5, on encapsulated layer 6 on thin film transistor (TFT) array 2
Cover sheet 7 and between encapsulated layer and cover sheet 7, for be bonded together encapsulated layer and cover sheet 7
Tack coat 8.
New film layer 31, i.e. magnetosphere 4 due to being added in flexible display panels, in order to not influence flexible display panels
Flexibility, the Thickness of magnetosphere 4 between 50~500 nanometers, i.e., magnetosphere 4 can for 50 nanometers, 100 nanometers, 150 receive
Rice, 200 nanometers, 300 nanometers, 400 nanometers, 450 nanometers, 500 nanometers etc., just no longer repeat one by one here.
In order to which minimizing electrostatic causes damage to flexible display panels, a fixed potential, magnetosphere 4 are applied with magnetosphere 4
It is multiplexed with electrostatic screen layer.
In a kind of optional embodiment, the fixed potential applied on magnetosphere 4 is earthing potential.
Optionally, flexible display panels include flexible PCB, and flexible PCB magnetropism layer 4 applies fixed potential.Knot
Structure is simpler, connects more convenient.
During the present invention is implemented the magnetosphere 4 that provides be located at the active layer 22 and on the direction perpendicular to flexible base board 1,
Relative to active layer 22 between one layer of farthest flexible layer 11, therefore the magnetosphere 4 provided in the embodiment of the present invention is specific
Set location can have a variety of：
In a kind of optional embodiment, as shown in figure 4, thin film transistor (TFT) array 2 include be cascading substrate,
Light shield layer 21, active layer 22, gate insulator 23, grid, insulating barrier 25 and source layer and drain electrode layer 26, the Flexible Displays face
Magnetosphere 4 in hardened structure can be located between light shield layer 21 and active layer 22, can also be located between light shield layer 21 and substrate.
In addition in the flexible display panels having, cushion 3 may be also set up between light shield layer 21 and active layer 22, now magnetosphere 4
Can be located between cushion 3 and light shield layer 21, or between cushion 3 and active layer 22, also or, cushion 3 is multilayer
Membrane structure, light shield layer 21 can be located between two film layers 31 of arbitrary neighborhood.
In another optional embodiment, as shown in figure 5, flexible base board 1 includes at least two sheets of flexible layer 11, magnetosphere
4 are located between any two sheets of flexible layer 11.
In another optional embodiment, as shown in Fig. 2 magnetosphere 4 is located between flexible base board 1 and cushion 3.
In another optional embodiment, as shown in fig. 6, cushion 3 includes at least two layers film layer 31, magnetosphere 4
Between any two layers of film layer 31.
From the above-mentioned set location of magnetosphere 4 embodiment that provides of the present invention is provided in the position that is set by magnetosphere 4
Put, the position of flexible display panels can be acted on selection index system power, Flexible Displays face can be acted on by changing active force
Position on plate, reduces the theca interna 31 of thin film transistor (TFT) array 2 and departs from, cause flexible display panels to show the hair of failure phenomenon
It is raw.
The specific material of above-mentioned magnetosphere 4 can have a variety of, optionally, and magnetosphere 4 is ferromagnetic material layers.Can also be nickel
Flux material layer, or the cobalt magnetic material bed of material, the alloy-layer also or for iron, cobalt, nickel magnetic material layer formed.
Further, magnetosphere 4 includes matrix and filler, and filler is scattered in matrix, and filler has magnetic.
Such structure design, it is possible to reduce the generation of flexible display panels electric discharge phenomena.
Flexible display panels provided in an embodiment of the present invention can be flexible organic display panel, or other flexibilities
Display panel, such as flexible electrophoretic display panel, will not enumerate here.
As shown in fig. 7, present invention also offers a kind of preparation method of flexible display panels, it is above-mentioned any one for preparing
Flexible display panels described in, including
Step S701：One underlay substrate 9 is provided；
Step S702：Flexible display panels are formed on underlay substrate 9, wherein, the shape of flexible base board 1 of flexible display panels
Into on underlay substrate 9；
Step S703：Apply the first magnetic field B1 on the direction perpendicular to underlay substrate 9, the first magnetic field B1 acts on flexibility
The magnetosphere 4 of display panel, underlay substrate 9 and flexible display panels are peeled off., can be to substrate base when peeling off underlay substrate 9
Plate 9 applies a peeling force, and the direction of the peeling force is in opposite direction with the active force suffered by magnetosphere 4, in the two sides
To in the presence of opposite effect power, underlay substrate 9 can be separated with flexible display panels.
In a kind of specific embodiment, the first magnetic fields include in the process of the magnetosphere 4 of flexible display panels,
First magnetic field produces an active force for magnetosphere 4, and the direction of active force is on the direction perpendicular to underlay substrate 9
Away from underlay substrate 9, in the presence of the active force, underlay substrate 9 is separated with flexible display panels.
Further, above-mentioned preparation method also includes,
After underlay substrate 9 is peeled off, diaphragm 10 is placed close to the side of underlay substrate 9 in flexible base board 1；
As shown in figure 8, apply the second magnetic field B2 on the direction perpendicular to flexible base board 1, and along parallel to flexibility
The side of substrate 1 moves up the second magnetic field B2 (direction as shown in arrow C in Fig. 8), by diaphragm in the presence of the second magnetic field
10 are attached on flexible base board 1.Diaphragm 10 is attached in this way, can make it that the distance in attaching of diaphragm 10 is flexible
Display panel has a certain distance, and each film layer 31 in flexible display panels can be avoided to be under pressure, and reduces Flexible Displays face
The generation of the damage phenomenon of each film layer 31 in plate, while the attaching integrality of diaphragm 10 can be improved.
As shown in figure 9, assuming that the magnetic field applied is applied by electromagnet, electromagnet is unicoil, the ferromagnetic material of coil distance
0.1 millimeter of material, then the size of the active force for acting on magnetosphere 4 is as shown in Figure 8.If hold-in winding and ferromagnetic material distance
For 0.1 millimeter, ferromagnetic material thickness is 100 nanometers, and magnetic force pressure can be estimated as：1.7Pa* size of current (A) * electromagnetism iron rings
Number.In the embodiment that the present invention is provided, the big I of active force of magnetosphere 4 is acted on according to needed for actually removing or fit
Power come the regulating magnet number of turns and electric current.
With reference to Figure 10, the embodiment of the present invention also provides a kind of display device.Wherein, display device 100 includes display panel
200, display panel 200 is the flexible display panels in any of the above-described embodiment, and display device 100 is mobile phone, notebook electricity
The display devices such as brain, television set, intelligence wearing display, the present embodiment is not particularly limited to this.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (13)
1. a kind of flexible display panels, it is characterised in that including：
Flexible base board, the flexible base board includes at least one layer of flexible layer；
Thin film transistor (TFT) array on the flexible base board, the thin film transistor (TFT) array includes：Grid layer, active layer,
Source layer and drain electrode layer；
Cushion, the cushion is located between the flexible base board and the thin film transistor (TFT) array；Wherein,
The flexible display panels also include magnetosphere, and the magnetosphere is located at the active layer and perpendicular to the flexible base
Between one layer of flexible layer on the direction of plate, farthest relative to active layer distance.
2. flexible display panels according to claim 1, it is characterised in that fixation electricity is applied with the magnetosphere
Position, the magnetosphere is multiplexed with electrostatic screen layer.
3. flexible display panels according to claim 2, it is characterised in that the fixed potential applied on the magnetosphere is
Earthing potential.
4. flexible display panels according to claim 2, it is characterised in that the flexible display panels include flexible circuit
Plate, the flexible PCB applies the fixed potential to the magnetosphere.
5. flexible display panels according to claim 1, it is characterised in that the flexible base board includes at least two sheets of flexible
Layer, the magnetosphere is located between flexible layer described in any two layers.
6. flexible display panels according to claim 1, it is characterised in that the magnetosphere be located at the flexible base board with
Between the cushion.
7. flexible display panels according to claim 1, it is characterised in that the cushion includes at least two layers film layer,
The magnetosphere is located between film layer described in any two layers.
8. flexible display panels according to claim 1, it is characterised in that the magnetosphere is ferromagnetic material layers.
9. the flexible display panels according to claim 1-8 any one, it is characterised in that the magnetosphere includes matrix
And filler, the filler is scattered in described matrix, and the filler has magnetic.
10. a kind of preparation method of flexible display panels, for preparing the Flexible Displays as described in claim 1-9 any one
Panel, it is characterised in that including
One underlay substrate is provided；
The flexible display panels are formed on the underlay substrate, wherein, the flexible base board of the flexible display panels
It is formed on the underlay substrate；
Apply the first magnetic field on the direction perpendicular to the underlay substrate, first magnetic fields are in the Flexible Displays face
The magnetosphere of plate, the underlay substrate and the flexible display panels are peeled off.
11. the preparation method of flexible display panels according to claim 10, it is characterised in that first magnetic fields
Include in the magnetospheric process of the flexible display panels,
First magnetic field produces an active force for the magnetosphere, and the direction of the active force is perpendicular to the substrate base
The side of plate is upwardly away from the underlay substrate, in the presence of the active force, the underlay substrate and the Flexible Displays face
Plate is separated.
12. the preparation method of flexible display panels according to claim 10, it is characterised in that the preparation method is also wrapped
Include,
After the underlay substrate is peeled off, diaphragm is placed close to the side of the underlay substrate in the flexible base board；
Apply the second magnetic field on the direction perpendicular to the flexible base board, and along the direction parallel to the flexible base board
The diaphragm, is attached on the flexible base board by upper movement second magnetic field in the presence of second magnetic field.
13. a kind of display device, it is characterised in that including the flexible display panels described in claim 1-9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710295146.7A CN107068906B (en) | 2017-04-28 | 2017-04-28 | Flexible display panels and preparation method thereof and display device |
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| CN201710295146.7A CN107068906B (en) | 2017-04-28 | 2017-04-28 | Flexible display panels and preparation method thereof and display device |
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| CN107068906B CN107068906B (en) | 2019-05-03 |
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| WO2019090731A1 (en) * | 2017-11-10 | 2019-05-16 | 深圳市柔宇科技有限公司 | Flexible back plate, flexible display device and preparation method |
| CN111439016A (en) * | 2020-03-26 | 2020-07-24 | 武汉华星光电半导体显示技术有限公司 | Attaching method of special-shaped glass cover plate and display device |
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| Publication number | Publication date |
|---|---|
| CN107068906B (en) | 2019-05-03 |
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