CN109801948A - A kind of flexible display panels and preparation method thereof, flexible display apparatus - Google Patents
A kind of flexible display panels and preparation method thereof, flexible display apparatus Download PDFInfo
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Abstract
The embodiment of the invention provides flexible display panels and preparation method thereof and flexible display apparatus, and wherein flexible display panels include: display area and packaging area;It further include flexible base board, display area and packaging area are formed on the flexible base board;The first metal layer extends to packaging area by display area;Inoranic membrane and/or organic film, inoranic membrane and/or organic film include at least one layer of the first film layer being located on the first metal layer, and the first film layer extends to the packaging area by the display area, and the first film layer overhangs on the first metal layer;Second metal layer extends to the packaging area by display area, and second metal layer part covers first film layer.By the way that the overhang structure that double layer of metal clamps the first film layer is arranged in packaging area, flexible display panels can be effectively prevented water oxygen erosion, generate crack when preventing from being formed through hole, improve the service life of flexible display apparatus.
Description
[technical field]
The present invention relates to field of display technology more particularly to a kind of flexible display panels and preparation method thereof and Flexible Displays
Device.
[background technique]
In recent years, the use scope of display device has become more diversified.Since display device has very thin foreign steamer
It is wide and light-weight, therefore the use scope of display device gradually broadens.Specifically, recently, display device is used not only in monitor
In mobile phone, but also it is used in such as wrist-watch, clock, shoes, in various types of equipment of clothes etc., therefore, aobvious
The shape design aspect of showing device, whole world developer actively study various methods.
[summary of the invention]
In view of this, the embodiment of the invention provides a kind of flexible display panels and preparation method thereof and Flexible Displays to fill
It sets.
On the one hand, the embodiment of the invention provides a kind of display panel, display panel includes: display area and encapsulation region
Domain;The display panel further includes flexible base board, and the display area and the packaging area are formed on the flexible base board;
The first metal layer extends to the packaging area by the display area;Inoranic membrane and/or organic film, the inoranic membrane and/
Or organic film includes at least one layer of the first film layer being located on the first metal layer, first film layer is by the viewing area
Domain extends to the packaging area, and first film layer overhangs on the first metal layer;Second metal layer, by the viewing area
Domain extends to the packaging area, and the second metal layer part covers first film layer.
Optionally, the flexible display panels include through hole through the flexible base board, and the packaging area surrounds institute
State through hole.
Optionally, the first metal layer is that identical material is formed with the second metal layer.
Optionally, the second metal layer thickness is bigger than the first metal layer thickness.
Optionally, first film layer has the first via hole, the first via hole exposure institute on the first metal layer
The first metal layer is stated, the second metal layer covers first via hole and by first via hole and the first metal layer
Contact.
Optionally, the first metal layer is the first projection, first via hole in the upright projection of the flexible base board
It is the second projection in the upright projection of the flexible base board, second projection is fallen in first drop shadow spread.
Optionally, first film layer is third projection, the first metal layer in the upright projection of the flexible base board
It is the first projection in the upright projection of the flexible base board, first projection is fallen in the third drop shadow spread.
Optionally, the second metal layer is the 4th projection, first film layer in the upright projection of the flexible base board
It is third projection in the upright projection of the flexible base board, the 4th projection is fallen in the third drop shadow spread.
Optionally, the second metal layer is the 4th projection, first film layer in the upright projection of the flexible base board
It is third projection in the upright projection of the flexible base board, the 4th projection is overlapped with third projection.
On the other hand, the embodiment of the invention provides a kind of flexible display apparatus, the flexible display apparatus includes above-mentioned
Flexible display panels.
On the other hand, the embodiment of the invention provides a kind of preparation methods of flexible display panels, this method comprises:
Flexible base board is prepared, the flexible base board includes display area and packaging area;It is formed on the flexible base board
The first metal layer, the first metal layer extend to the packaging area by the display area;On the first metal layer
The first film layer is formed, first film layer extends to the packaging area by the display area;The shape in first film layer
At second metal layer, the second metal layer extends to the packaging area, the second metal layer portion by the display area
Divide covering first film layer;The second metal layer is etched, while etching the first metal layer, forms first film layer
Overhang on the structure of the first metal layer.
Optionally, a through hole for running through the flexible base board is formed in the flexible display panels.
Optionally, it is described prepare flexible base board before, further include that rigid substrates are provided, prepared on the rigid substrates
The flexible base board.
It optionally, further include separating the rigid substrates and the flexible base board after forming the through hole.
A kind of flexible display panels provided in an embodiment of the present invention and preparation method thereof and flexible display apparatus, by passing through
The through hole surrounding package region for wearing flexible base board is arranged the first film layer and overhangs on the first metal layer, the covering of second metal layer part
The structure of first film layer, prevent in etching process the first film layer be etched liquid removing fall off caused by packaging area occur
Demoulding tomography avoids steam and oxygen by entering Flexible Displays face caused by flexible display substrates at the demoulding at packaging area
The problem of luminescent device service life reduces in plate, to improve flexible display panels quality.
Compared with prior art, the production method of flexible display panels provided by the invention does not increase additional process, not
The flexible display panels that production method beneficial effect of the invention is provided with above-mentioned technical proposal in the case where increase cost have
Beneficial effect is identical, and this will not be repeated here.
Compared with prior art, the beneficial effect Yu above-mentioned technical proposal of flexible display apparatus provided by the invention provide
The beneficial effect of flexible display panels is identical, and this will not be repeated here.
[Detailed description of the invention]
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this field
For those of ordinary skill, without creative efforts, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the plan view of the flexible display panels of an embodiment of the present invention
Fig. 2 is plan view of the amplification around the flexible display panels of the part through hole H of Fig. 1;
Fig. 3 is the sectional view intercepted in an embodiment along the line A-A ' of Fig. 2;
Fig. 4 is the sectional view intercepted in another embodiment along the line A-A ' of Fig. 2;
Fig. 5 is the sectional view intercepted in another embodiment along the line A-A ' of Fig. 2;
Fig. 6 is the sectional view intercepted in another embodiment along the line A-A ' of Fig. 2;
Fig. 7-Figure 11 is the flexible display panels preparation method that an embodiment of the present invention provides;
Figure 12 is the of the invention real one flexible display apparatus schematic diagram for applying example offer.
[specific embodiment]
For a better understanding of the technical solution of the present invention, being retouched in detail to the embodiment of the present invention with reference to the accompanying drawing
It states.
It will be appreciated that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
Its embodiment, shall fall within the protection scope of the present invention.
The term used in embodiments of the present invention is only to be not intended to be limiting merely for for the purpose of describing particular embodiments
The present invention.In the embodiment of the present invention and the "an" of singular used in the attached claims, " described " and "the"
It is also intended to including most forms, unless the context clearly indicates other meaning.
It should be appreciated that term "and/or" used herein is only a kind of incidence relation for describing affiliated partner, indicate
There may be three kinds of relationships, for example, A and/or B, can indicate: individualism A, exist simultaneously A and B, individualism B these three
Situation.In addition, character "/" herein, typicallys represent the relationship that forward-backward correlation object is a kind of "or".
It is to be further understood that term used herein includes and/or comprising indicating there is stated feature
Or component, but do not preclude the presence or addition of other one or more features or component.
For ease of description, the size of element may zoom in or out in attached drawing.In other words, for ease of description, arbitrarily
Ground shows the size and thickness of component in attached drawing, so following embodiment is without being limited thereto.
When differently certain embodiments can be implemented, specific process can be differently carried out with described sequence
Sequentially.It is continuously described for example, can substantially simultaneously execute or execute two with the sequence opposite with described sequence
Process.
Embodiment one
Fig. 1 to Fig. 3 is please referred to, Fig. 1 is to show the plan view of flexible display panels 1 according to an embodiment, and Fig. 2 is
Around the plan view of the flexible display panels of the part through hole H of Fig. 1, Fig. 3 is the line A-A ' in an embodiment along Fig. 2 for amplification
The sectional view of interception.Flexible display panels 1 include display area PA and packaging area NPA in the embodiment;Flexible display panels 1
It further include flexible base board 200, display area PA and packaging area NPA are formed on flexible base board 200;The first metal layer 220,
Packaging area NPA is extended to by display area PA;Inoranic membrane and/or organic film, inoranic membrane and/or organic film include at least
One layer of first film layer 230 being located on the first metal layer 220, the first film layer 230 extend to packaging area by display area PA
NPA, the first film layer 230 overhang on the first metal layer 220;Second metal layer 260 extends to packaging area by display area PA
NPA, 260 part of second metal layer cover the first film layer 230.
Wherein flexible base board 200 is prepared using flexible resin material, such as polyimides, polystyrene, poly- terephthaldehyde
The materials such as sour glycol ester, Parylene, polyether sulfone, polyethylene naphthalate.According to an embodiment, flexible base
Plate 200 may include elastic material.For example, flexible base board 200 may include the material of such as polyimides (PI), which can be easy
Ground is bent and is bent or rolls, but this is merely exemplary, and embodiment is without being limited thereto.
Packaging area NPA is not provide the region of image, and packaging area NPA includes the outer rim around display area PA
The first sub- packaging area NPA1 and the outer rim around through hole H the second sub- packaging area NDA2.
The first metal layer 220 extends to packaging area NPA by display area PA, in the first metal layer 220 and flexible base board
Between 200, at least one layer of second film layer 210 is set, the second film layer 210 and the first film layer 230 belong to the one of display film layer
Part.
Specifically, in flexible display panels provided in this embodiment, by taking polycrystalline silicon type TFT as an example for, in flexible base board
On be disposed with aqueous vapor barrier layer, buffer layer, semiconductor layer, gate insulating layer, grid layer, interlayer insulating film, source-drain electrode layer,
The film layers such as passivation layer, organic planarization layer, anode layer, organic luminous layer, cathode layer.It corresponds in the present embodiment, the first metal
Layer 220 is the metal material composition with the setting of grid layer same layer.As a result, while forming grid layer, the first metal layer is formed
220, it does not need to increase additional process.In the present embodiment described second film layer of at least one layer 210 then including aqueous vapor barrier layer,
The stratified films such as buffer layer, semiconductor layer and gate insulating layer.Correspondingly, second metal layer 260 can be source-drain electrode layer same layer
Metal is formed, and the first film layer 230 is then interlayer insulating film.While forming source-drain electrode layer, second metal layer 260 is formed, no
Need to increase additional process.First film layer 230 overhangs on the first metal layer 220, i.e. the first film layer 230 is formed in the first metal
The first metal layer 220 is not enveloped completely but on layer 220.It should be noted that being with the first metal layer in the present embodiment
220 be with grid layer same layer, second metal layer 260 is illustrated for being formed with source-drain electrode layer same layer, however this is only
It is to schematically illustrate, it can not be in this, as limitation of the invention.In other embodiments of the invention, the first metal layer
220 can be what other metallic diaphragms such as source-drain electrode layer were formed simultaneously, correspondingly, second metal layer 260 is also not necessarily limited to and source and drain
Pole layer is formed simultaneously, and corresponding first film layer 230 can be one of inoranic membrane and/or organic film or a variety of.
In some embodiments, as shown in figure 4, Fig. 4 is the section intercepted in another embodiment along the line A-A ' of Fig. 2
Figure, wherein the first film layer 230 has the first via hole 2031, the first via hole 2301 the first metal of exposure on the first metal layer 220
Layer 220, second metal layer 260 cover the first via hole 2301 and are contacted with the first metal layer 220 by the first via hole 2301, the
The first film encapsulated layer 280 and the second thin-film encapsulation layer 290 are formed on two metal layers 260.In some embodiments, first is thin
Film encapsulated layer 280 is single-layer inorganic material layer, and the second encapsulation film layer 290 is multilayer inorganic material and/or organic material layer.One
The first metal layer 220 is that identical material is formed with second metal layer 260 in a little embodiments, because of the physical property phase of double layer of metal
Together, the first metal layer 220 and second metal layer 260 can be combined together by the first via hole 2301, by second metal layer
260 edge is fixed in display film layer, and the first metal layer 220 and second metal layer 260 clamp the formation of the first film layer 230
" work " word structure, when being somebody's turn to do " work " word structure by etching technics formation, double layer of metal can clamp the first film layer 230, because
Metal layer has good ductility, can prevent the first film layer 230 liquid that is etched from washing away removing and fall off, the first film layer outstanding
230 form overhang structure, and organic material when subsequent vapor deposition organic material can be prevented to be evaporated to the first film encapsulated layer 280
The position contacted with the second film layer 210 comes into full contact with the first film encapsulated layer 280 with the second film layer 210, increases by two film layers
Between adhesive force, improve the edge reliability of thin-film package, further improve flexible display panels 1 water oxygen barrier energy
Power guarantees the display effect of display device.The first film encapsulated layer 280 is formed in the overhang structure of the first film layer 230 formation
Upper and lower two sides, the first encapsulated layer 280 being formed between overhang structure and the second film layer 210 be firmly fastened on overhang structure with
Between second film layer 210, it is not easily stripped.And the second metal layer 260 due to using has good extension for metal material
Property, it is also not easily susceptible to cracking during bending, it is therefore prevented that the crack at edge of flexible display panels 1 during bending.Also, the
Two metal layers 260 are located at packaging area NPA2, and metal material is opaque material, are carried out in packaging area using opaque material
Encapsulation, will not influence the transmitance of display device.
More specifically, the first metal layer 220 is the first projection, the first via hole 2301 in the upright projection of flexible base board 200
It is the second projection in the upright projection of flexible base board 200, the second projection is fallen in the first drop shadow spread.The first metal layer 220
Being arranged in the drop shadow spread of the first metal layer 220 with the first via hole of contact hole 2301 of second metal layer 260 can be sufficiently sharp
With the space packaging area NPA, packaging area NPA reserved space is advantageously reduced, the narrow frame of flexible base board is facilitated.
Flexible base board 200 includes display area PA and packaging area NPA, is provided with pixel array 20 in the PA of display area.
Each pixel Pixel of pixel array 20 includes pixel circuit and the light-emitting component for being electrically connected to pixel circuit, for example, organic hair
Optical diode (OLED), and each pixel provides predetermined image by using the light emitted from light-emitting component.Pixel array 20
It is sealed by thin-film encapsulation layer described below.Thin-film encapsulation layer can be multilayer, the multilayer include layer containing organic material with
And layer containing inorganic materials.
Through hole H is located in the DA of display area, and the second sub- packaging area NDA2 surrounds through hole H.Through hole H is across soft
The hole of property substrate 200, thin-film encapsulation layer and the various film layers being disposed there between, and through hole H is located in the PA of display area
Portion and by being surrounded including the pixel array 20 of multiple pixel Pixel.
First sub- packaging area NPA1 may include scanner driver (not shown) and data driver (not shown), and being used for will
Prearranged signals is sent to each pixel Pixel of display area PA.Second sub- packaging area NDA2 is arranged in through hole H and display
Between the PA of region.
Although fig 1 illustrate that through hole H is located at the center of the display area DA of flexible display panels 1, but embodiment
It is without being limited thereto.Through hole H can be surrounded by pixel Pixel and in any position of display area DA, and through hole H
Specific location is unrestricted.
Although fig 1 illustrate that through hole H is circular and is formed with a through hole H, but embodiment is not limited to
This.Through hole H can have various shape, such as, polygonal shape or elliptical shape including quadrangle form.It can be formed
There are one or more through hole H.
Although fig 1 illustrate that display area DA is circular, but embodiment is without being limited thereto.Display area DA can have
Various shape, such as, the polygonal shape including quadrangle form perhaps elliptical shape or are arbitrarily cut out according to clothes, shoes
The shape cut.
Referring to figs. 2 and 3, through hole H is surrounded by pixel Pixel, and the region of not set pixel Pixel is (that is, second
Sub- packaging area NDA2) between through hole H and pixel Pixel.
In some embodiments, the first film layer 230 is third projection, the first metal in the upright projection of flexible base board 200
Layer 220 is the first projection in the upright projection of flexible base board 200, and the first projection is fallen in third drop shadow spread.Pass through setting the
One metal layer 220 supports the overhang structure of the first film layer 230, and OLED material in evaporation process can be prevented to be splashed to the first film
It under the overhang structure of layer 230, is contacted convenient for subsequent thin film encapsulated layer with the second film layer 210, guarantees packaging effect.
It is applied in example some, the whole covering display area PA of the first film layer 230, when showing image as display area PA
Function element.And the first film layer 230 extends to encapsulation region NPA from display area PA, covers in addition to the first via hole 2301
Other regions.It should be noted that the first film layer 230, which extends to packaging area NPA from viewing area PA, refers at least one layer first
Film layer 230 extends to packaging area NPA from viewing area PA, and the first not all film layer 230 must all extend from viewing area PA
To packaging area NPA.
As shown in Figure 3 and Figure 4, second metal layer 260 is the 4th projection, the first film in the upright projection of flexible base board 200
Layer 230 is third projection in the upright projection of flexible base board 200, and the 4th projection is fallen in third drop shadow spread.Such setting
In subsequent encapsulation, the contact area of thin-film encapsulation layer Yu the first film layer 230 can be increased, because of thin-film encapsulation layer and the first film
Layer 230 is all inoranic membrane and/or organic film, and the adhesive force relative to inoranic membrane and/or organic film and metal is more preferable, can be into
One step improves the water oxygen obstructing capacity of flexible display panels 1, improves the service life of flexible display panels 1.
In some embodiments, as shown in figure 5, Fig. 5 is the section intercepted in another embodiment along the line A-A ' of Fig. 2
Figure, second metal layer 260 are the 4th projection in the upright projection of flexible base board 200, and the first film layer 230 is in flexible base board 200
Upright projection is third projection, and the 4th projection is overlapped with third projection.The first film is completely covered in this second metal layer 260
The setting of layer 230, because metal has good ductility this set can be with the first film layer of effective protection 230 in subsequent each work
It is not stripped in sequence, that is, the first film layer 230 is protected to will not fall off.
In some embodiments, as shown in fig. 6, Fig. 6 is the section intercepted in another embodiment along the line A-A ' of Fig. 2
Multiple cyclic annular the first metal layers 220 or second metal layer can be arranged in figure according to the area size of the second sub- packaging area NDA2
260, multiple annular metal layers, which are arranged, can also prevent crackle caused by the impact generated during the process for forming through hole H
It is extended towards pixel P.Multiple ring-type the first metal layers 220 or 260 set-up mode of second metal layer are not limited to as shown in the figure, as long as
The first film layer structure overhang is clamped with double layer of metal all should be considered as invention which is intended to be protected.
The present invention also provides a kind of preparation methods of flexible display panels, as shown in figure Fig. 7-Figure 11, including walk as follows
It is rapid:
S110: flexible base board 200 is prepared;
Wherein, flexible base board includes display area and packaging area.
S120: the first metal layer is formed on flexible substrates;
It wherein, further include forming the second film layer 210 on flexible substrates before forming the first metal layer 220.Second film layer
210 may include the film layers such as aqueous vapor barrier layer, buffer layer, semiconductor layer, gate insulating layer, and preparation method is compared with this in technology
The preparation method of a little film layers is identical, and details are not described herein.The first metal layer 220 extends to packaging area by display area, in shape
Grid layer is formed simultaneously at the first metal layer 220.It is arranged by the first metal layer 220 in this present embodiment and grid layer same layer, because
This is when preparing the first metal layer 220, one layer of gate metal layer of first physical deposition, then by using after photoresist exposure development
Wet etching etches grid layer and the first metal layer 220.It should be noted that this step is only with flexibility shown in Fig. 6
Preparation method explanation is being carried out for display panel, in other embodiments of the invention, when the first metal layer and grid layer have
When changed, the step of specifically preparing the first metal layer 220, is slightly different.For example, when the flexible display panels of preparation are without the
Two film layers and when having grid layer, directly prepare grid layer and the first metal layer on flexible base board 200;When flexible display panels do not have
When having grid layer, the first metal layer individually is prepared on flexible base board or the second film layer.
S130: the first film layer 230 is formed on the first metal layer 220;
Wherein, the first film layer 230 extends to packaging area by display area, and the first film layer 230 is including interlayer insulating film etc.
The preparation of film layer, these film layers is identical compared with the preparation method in technology, and details are not described herein.Also, of the invention other
In embodiment, change with the concrete composition film layer of the first film layer, forming method is slightly different.Is formed in the first film layer 230
One via hole 2301, the first via hole 2301 exposure the first metal layer 220.
S140: second metal layer 260 is formed in the first film layer 230;
Wherein, second metal layer 260 extends to packaging area, all coverings first of second metal layer 260 by display area
Film layer 230,260 thickness of second metal layer are greater than 220 thickness of the first metal layer.
S140: etching second metal layer 260;
Wherein, over etching second metal layer 260, while etching first metal layer 220 form the first film layer 230 and overhang on
The structure of the first metal layer 220.260 thickness of second metal layer is bigger than 220 thickness of the first metal layer in the present embodiment,
It wanted quarter when etching second metal layer 260, the part the first metal layer 220 being located under the first film layer 230 was also performed etching, used
To generate the overhang structure of the first film layer 230.
Further, the preparation method of flexible display panels further includes that one is formed in flexible display panels through described soft
The through hole of property substrate further forms the through hole with laser cutting mode.
Wherein S110 further includes providing rigid substrates, prepares flexible base board on the rigid substrate.Due to flexible base board bendable
Song needs to form the compound of rigid substrates and flexible base board to guarantee to keep the flatness of flexible base board in array processes
Substrate.Flexible base board is usually formed on the rigid substrate, and generally rigid substrate is chosen as glass substrate or quartz base plate, rigid
Property substrate on one layer of flexible base board formed by spin-coating method or sedimentation.The flexible base board includes display area and encapsulation region
Domain.
It further, further include separating the rigid substrates and the flexible base board after forming the through hole.
After separating rigid substrates, that is, form flexible display panels.The process of being generally separated can using physics cutting, laser cutting or
Chemical solution corrosion separation.Also, multiple display panels usually during the preparation process, are made in a big motherboard, are being cut
In the process, the cutting of each display panel can be first carried out, then carries out the separation of rigid substrates and flexible base board, or can be first
The separation of rigid substrates and flexible base board is carried out, then carries out the cutting of each display panel.
The embodiment of the invention also provides a kind of flexible display apparatus, and as shown in figure 12, Figure 12 is institute of the embodiment of the present invention
The structural schematic diagram of the flexible display apparatus of offer, the display device include above-mentioned flexible display panels 200, and are arranged soft
Through hole on property display panel 200.Wherein, the specific structure of flexible display panels 200 carries out in the above-described embodiments
It is described in detail, details are not described herein again.Certainly, display device shown in Figure 12 is only schematically illustrate, which can be with
It is to appoint such as mobile phone, tablet computer, laptop, electric paper book, wrist-watch, clock and watch, wearable garment, shoes or television set
What electronic equipment having a display function.
The flexible display apparatus as provided by the embodiment of the present invention includes above-mentioned flexible display panels, using this
Water oxygen can be effectively prevented in flexible display apparatus, the structure that the first film layer is clamped by the way that double layer of metal is arranged around through hole
It corrodes, generates crack when preventing from being formed through hole, improve the service life of flexible display apparatus.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the present invention.
Claims (14)
1. a kind of flexible display panels, comprising: display area and packaging area;
The flexible display panels further include,
Flexible base board, the display area and the packaging area are formed on the flexible base board;
The first metal layer extends to the packaging area by the display area;
Inoranic membrane and/or organic film, the inoranic membrane and/or organic film include at least one layer of positioned at the first metal layer
On the first film layer, first film layer extends to the packaging area by the display area, and first film layer is overhang on
The first metal layer;
Second metal layer extends to the packaging area by the display area, the second metal layer part covering described the
One film layer.
2. flexible display panels according to claim 1, which is characterized in that the flexible display panels include that through hole passes through
The flexible base board is worn, the packaging area surrounds the through hole.
3. flexible display panels according to claim 2, which is characterized in that the first metal layer and second metal
Layer is that identical material is formed.
4. flexible display panels according to claim 3, which is characterized in that the second metal layer thickness is than described first
Metal layer thickness is big.
5. flexible display panels according to claim 1, which is characterized in that first film layer is in the first metal layer
It is upper that there is the first via hole, the first via hole exposure the first metal layer, the second metal layer covering first via hole
And it is contacted by first via hole with the first metal layer.
6. flexible display panels according to claim 5, which is characterized in that the first metal layer is in the flexible base board
Upright projection be first projection, first via hole the flexible base board upright projection be second projection, described second
Projection is fallen in first drop shadow spread.
7. flexible display panels according to claim 1, which is characterized in that first film layer is in the flexible base board
Upright projection is third projection, and the first metal layer is projected in the upright projection of the flexible base board for first, described first
Projection is fallen in the third drop shadow spread.
8. flexible display panels according to claim 1, which is characterized in that the second metal layer is in the flexible base board
Upright projection be the 4th projection, first film layer the flexible base board upright projection be third project, the described 4th
Projection is fallen in the third drop shadow spread.
9. flexible display panels according to claim 1, which is characterized in that the second metal layer is in the flexible base board
Upright projection be the 4th projection, first film layer the flexible base board upright projection be third project, the described 4th
Projection is overlapped with third projection.
10. a kind of preparation method of flexible display panels, comprising:
Flexible base board is prepared, the flexible base board includes display area and packaging area;
The first metal layer is formed on the flexible base board, the first metal layer extends to the encapsulation by the display area
Region;
The first film layer is formed on the first metal layer, first film layer extends to the encapsulation region by the display area
Domain;
Second metal layer is formed in first film layer, the second metal layer extends to the encapsulation by the display area
Region, the second metal layer part cover first film layer;
The second metal layer is etched, while etching the first metal layer, first film layer is formed and overhangs on described first
The structure of metal layer.
11. preparation method according to claim 10, which is characterized in that form one in the flexible display panels and run through
The through hole of the flexible base board.
12. preparation method according to claim 10, which is characterized in that it is described prepare flexible base board before, further includes:
Rigid substrates are provided;
The flexible base board is prepared on the rigid substrates.
13. preparation method according to claim 11, which is characterized in that after forming the through hole, further includes:
Separate the rigid substrates and the flexible base board.
14. a kind of flexible display apparatus, including the flexible display panels as described in claim 1~9 is any.
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Cited By (2)
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CN110634407A (en) * | 2019-09-26 | 2019-12-31 | 云谷(固安)科技有限公司 | Winding mechanism and winding type display terminal |
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CN110634407B (en) * | 2019-09-26 | 2021-09-07 | 云谷(固安)科技有限公司 | Winding mechanism and winding type display terminal |
CN113644105A (en) * | 2021-08-11 | 2021-11-12 | 苏州清越光电科技股份有限公司 | Lead structure of display panel, preparation method of lead structure and display panel |
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