CN106486598B - Flexible display panels, flexible display apparatus and preparation method thereof - Google Patents
Flexible display panels, flexible display apparatus and preparation method thereof Download PDFInfo
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- CN106486598B CN106486598B CN201611250212.0A CN201611250212A CN106486598B CN 106486598 B CN106486598 B CN 106486598B CN 201611250212 A CN201611250212 A CN 201611250212A CN 106486598 B CN106486598 B CN 106486598B
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K77/00—Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80
- H10K77/10—Substrates, e.g. flexible substrates
- H10K77/111—Flexible substrates
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
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- 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
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/549—Organic PV cells
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Abstract
This application discloses a kind of flexible display apparatus, flexible display panels and preparation method thereof, wherein, flexible display panels include: flexible substrate, there is flexible substrate at least one to be located at the sacrifice notch at edge, sacrificing notch is to the notch formed after sacrifice region cutting, and sacrifice region is used to provide in the preparation process of flexible display panels can retaining part；Positioned at flexible substrate surface except sacrifice notch is with the display device of exterior domain.Flexible display apparatus is avoided due to causing to scratch or adhere to impurity to sacrifice region or carrier substrate in clamping process, caused by when separating to flexible substrate with carrier substrate, there are still viscosity between the flexible substrate and carrier substrate of sacrifice region, so that the case where flexible substrate that the display device of sacrifice region is sacrificed region is torn and is damaged, to realize the display device for reducing flexible display panels in the purpose of flexible substrate and the probability being damaged in carrier substrate stripping process, improve flexible display panels prepares yield.
Description
Technical field
This application involves field of display technology, more specifically to a kind of flexible substrate, display device, Flexible Displays
Panel and preparation method thereof.
Background technique
With the continuous development of display technology, display panel using more and more extensive, function of the user for display panel
It can be also more and more diversified with the requirement of appearance.In order to meet this demand of user, deformable curved flexible display panels
It comes into being.
In the preparation process of flexible display panels, it usually needs flexible substrate is attached on carrier substrate, to soft
Property display panel display device preparation offer smoothly prepare platform, improve the yield for preparing of the display device, simultaneously
Reduce the preparation difficulty of the display device.The display device preparation after the completion of, need by the flexible substrate with it is described
Carrier substrate carries out strip operation, generally use in the prior art laser lift-off (Laser Lift Off, LLO) make it is described
Flexible substrate is separated with the carrier substrate, and detailed process includes: using laser or ultraviolet light through the carrier substrate
The attachment position for irradiating flexible substrate and the carrier substrate, make between the carrier substrate and the flexible substrate adhesion compared with
Removing that is low and being convenient for the carrier substrate Yu the flexible substrate.
But due to inevitably needing contact carrier substrate in the preparation process of the display device, make contact portion
Divide the case where being possible to will appear attachment impurity or scratching, although can be to the carrier before carrying out laser lift-off
Substrate starts the cleaning processing, but cleaning process can not be removed and scratch and still have in the clamping process after cleaning treatment attached
The possibility of impurity, these are scratched or what regions of attachment impurity can reduce laser or ultraviolet light penetrates energy so that this
A little corresponding received exposure energies of flexible substrate in region are lower than threshold limit value, in turn result in when the carrier substrate and institute
It states and the flexible substrate is caused to tear and keeps the display device of the flexible display panels impaired when flexible substrate is separated
The problem of.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of flexible display apparatus, flexible display panels and its preparations
Method, reduced due to carrying out causing to tear to flexible substrate in stripping process in carrier substrate and the flexible substrate with to realize and
The probability for keeping the display device of the flexible display panels impaired, to promote the mesh of the production yield of the flexible display panels
's.
To realize the above-mentioned technical purpose, the embodiment of the invention provides following technical solutions:
A kind of flexible display panels, comprising:
There is at least one to be located at the sacrifice notch at edge for flexible substrate, the flexible substrate；Positioned at the flexible substrate
Surface is except the sacrifice notch is with the display device of exterior domain.
Optionally, the sacrifice notch is polygon or round.
Optionally, the quantity for sacrificing notch is greater than or equal to 3.
Optionally, the quantity for sacrificing notch is 3, and sacrifice notch described in two of them is located at the flexible substrate bottom
2 corner regions on side, another described top margin middle section sacrificed notch and be located at the flexible substrate.
Optionally, the quantity for sacrificing notch is 4, and 4 sacrifice notches are located at the flexible substrate
4 corner regions.
Optionally, each area for sacrificing notch is greater than or equal to 0.5mm2。
A kind of flexible display apparatus, including at least one flexible display panels as described in any one of the above embodiments.
A kind of preparation method of flexible display panels, comprising: provide carrier substrate, the carrier substrate surface is attached with soft
Property substrate, the flexible substrate away from the carrier substrate side have multiple sacrifice regions；The carrier substrate is away from described
One side surface of flexible substrate has multiple one-to-one clamping zones of multiple sacrifice regions with the flexible substrate, each described
Clamping zone and the corresponding sacrifice region are opposite, and the clamping zone and the sacrifice region are for providing and can clamp
Position；At least one display device is formed in region of the flexible substrate surface in addition to the sacrifice region；To described soft
Property substrate carry out cutting and lift-off processing, obtain at least one described flexible display panels；It is described that the flexible substrate is carried out
Cutting and lift-off processing include: to carry out cutting process to the flexible substrate, obtain at least one unstripped flexible display panels,
Each unstripped flexible display panels include multiple sacrifice regions, and respectively to the unstripped flexible display panels
Flexible substrate carries out strip operation, so that the flexible substrate of the unstripped flexible display panels is separated with the carrier substrate；
Or, lift-off processing is carried out to the flexible substrate, so that the flexible substrate of at least one flexible display panels and the load
Structure base board separation, and cutting process is carried out to the flexible substrate after lift-off processing, obtain at least one described flexible display panels.
Optionally, described that cutting and lift-off processing are carried out to the flexible substrate, obtain at least one flexible display panels
Before further include: the sacrifice region is cut, makes to be formed at the sacrifice region of the flexible substrate and sacrifices notch.
Optionally, it is described to the sacrifice region carry out cutting include: to be cut to the sacrifice region of the flexible substrate
It cuts；Or, the sacrifice region and the carrier substrate and the corresponding position of the sacrifice region to the flexible substrate are cut.
Optionally, it is described to the flexible substrate carry out cutting and lift-off processing before further include: in the sacrifice region
Anti-skidding film layer is formed away from one side surface of carrier substrate.
Optionally, the anti-skidding film layer is silicon dioxide layer or silicon nitride layer or light-sensitive material of the surface with texture structure
Layer.
It can be seen from the above technical proposal that the embodiment of the invention provides a kind of flexible display apparatus, Flexible Displays face
Plate and preparation method thereof, wherein there is the flexible substrate of the flexible display panels at least one to be located at the sacrifice notch at edge,
The notch of sacrificing is to the notch formed after sacrifice region cutting, and the sacrifice region is used in the flexible display panels
There is provided in preparation process can retaining part, and since the display device is distributed in the flexible substrate surface except the sacrifice
Region other than notch is avoided due to opposite to the sacrifice region or sacrifice region carrier base in clamping process
Plate cause scratch or adhere to impurity, caused by when being separated to the flexible substrate with the carrier substrate sacrifice region
There are still viscosity between the carrier substrate, and the case where making the display device of the sacrifice region be torn and be damaged goes out
It is existing, it was removed in the flexible substrate with the carrier substrate to realize and reduce the display devices of the flexible display panels
The purpose for the probability being damaged in journey, improve the flexible display panels prepares yield.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of overlooking structure diagram for flexible display panels that one embodiment of the application provides；
Fig. 2 is the cross section structure schematic diagram for carrying out section along AA ' line along flexible display panels shown in Fig. 1；
Fig. 3 is a kind of overlooking structure diagram for flexible substrate that one embodiment of the application provides；
Fig. 4 is a kind of overlooking structure diagram for flexible substrate that another embodiment of the application provides；
Fig. 5 is a kind of overlooking structure diagram for flexible substrate that another embodiment of the application provides；
Fig. 6 is a kind of overlooking structure diagram for flexible substrate that the further embodiment of the application provides；
Fig. 7 is a kind of overlooking structure diagram for flexible substrate that the preferred embodiment of the application provides；
Fig. 8 is a kind of overlooking structure diagram for flexible substrate that another preferred embodiment of the application provides；
Fig. 9 is a kind of cross section structure schematic diagram for flexible display panels that another embodiment of the application provides；
Figure 10 is a kind of pixel driver film layer, display function layer and the peripheral driver electricity that one embodiment of the application provides
The overlooking structure diagram on road；
Figure 11 is a kind of flow diagram of the preparation method for flexible display panels that one embodiment of the application provides；
Figure 12 is a kind of process signal of the preparation method for flexible display panels that another embodiment of the application provides
Figure；
Figure 13-Figure 22 is a kind of carrier substrate preparation flow schematic diagram that one embodiment of the application provides；
Figure 23 is a kind of process signal of the preparation method for flexible display panels that another embodiment of the application provides
Figure；
Figure 24 is a kind of overlooking structure diagram for flexible display panels that another embodiment of the application provides；
Figure 25 is a kind of overlooking structure diagram for flexible display panels that another embodiment of the application provides；
Figure 26 is a kind of overlooking structure diagram for flexible display panels that the further embodiment of the application provides；
Figure 27 is a kind of process signal of the preparation method for flexible display panels that the further embodiment of the application provides
Figure；
Figure 28 is that a kind of process of the preparation method for flexible display panels that the preferred embodiment of the application provides is shown
It is intended to.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the present application provides a kind of flexible display panels, and with reference to Fig. 1 and Fig. 2, Fig. 1 is the flexible display panels
Overlooking structure diagram, Fig. 2 be Fig. 1 shown in flexible display panels along AA ' line carry out section cross section structure schematic diagram, institute
Stating flexible display panels includes:
There is at least one to be located at the sacrifice notch 101 at edge, the sacrifice for flexible substrate 100, the flexible substrate 100
Notch 101 is to the notch formed after sacrifice region cutting, and the sacrifice region is used for the preparation in the flexible display panels
There is provided in the process can retaining part；
Positioned at 100 surface of flexible substrate except the sacrifice notch 101 is with the display device 200 of exterior domain.
It should be noted that the display device 200 refers to including the display function in order to realize the flexible display panels
Can and be arranged device architecture, including but not limited to multiple thin film transistor (TFT)s, cabling, anode, display function material and cathode.
The flexible substrate 100 is preferably polyimides.But the application to the specific material of the flexible substrate 100 not
It limits, specifically depending on actual conditions.
It should also be noted that, in the preparation process of the flexible display panels, normally, the flexible substrate 100
It needs, to provide a stable platform to the preparation of the display device 200, to promote institute by being coated on carrier substrate surface
That states display device 200 prepares yield, reduces the preparation difficulty of the display device 200；In the preparation of the display device 200
In the process, the sacrifice region and carrier substrate deviate from 100 side of flexible substrate, and opposite with the sacrifice region
Clamping zone for provide can retaining part, and removed since the display device 200 is distributed in 100 surface of flexible substrate
It is described sacrifice notch 101 other than region, avoid due in clamping process to the sacrifice region or the clamping zone
Cause scratch or adhere to impurity, caused by when being separated to the flexible substrate 100 with the carrier substrate sacrificial region
There are still viscosity between domain and the carrier substrate, and the display device 200 of the sacrifice region is made to be torn and be damaged
Situation occurs, to realize the display device 200 for reducing the flexible display panels in the flexible substrate 100 and the load
The probability being damaged in structure base board stripping process, improve the flexible display panels prepares yield.
With reference to Fig. 3 and Fig. 4, a kind of vertical view for flexible display panels that Fig. 3 and Fig. 4 provide for one embodiment of the application
Structural schematic diagram, in Fig. 3, the flexible display panels only include one and are located at the described sacrificial of the flexible substrate frontside edge
Domestic animal notch 101, in Fig. 4, the flexible display panels include that two sacrifices for being located at the flexible substrate frontside edge lack
Mouth 101.The quantity for the sacrifice notch 101 that the application has the flexible substrate 100 of the flexible display panels and position are simultaneously
Without limitation, specific depending on actual conditions.
On the basis of the above embodiments, in one embodiment of the application, with reference to Fig. 5 and Fig. 6, Fig. 5 and Fig. 6 are institute
The overlooking structure diagram of flexible substrate 100 is stated, the sacrifice notch 101 is polygon or round.
The shown in Figure 5 notch 101 of sacrificing is round situation；The sacrifice notch is shown in attached drawing 6
101 be polygon the case where, in addition the polygon can be rectangle or regular pentagon or regular hexagon.In other of the application
In embodiment, the sacrifice notch 101 can also be ellipse.The application is to the specific setting shape for sacrificing notch 101
And without limitation, specific depending on actual conditions.
On the basis of the above embodiments, in another embodiment of the application, the quantity for sacrificing notch 101 is big
In or equal to 3.
It should be noted that since the sacrifice notch 101 is formed after being cut by the sacrifice region, it is described
The quantity for sacrificing notch 101 is to correspond to the quantity of the sacrifice region.Under normal circumstances, when can retaining part be more than two
When, the clamping carrier substrate that can be relatively stable carries out response operation.Therefore it is described sacrifice notch 101 quantity be greater than or
Equal to 3, certainly, the quantity for sacrificing notch 101 is more, provides in the preparation process of the display device 200
Can the selection of retaining part will be more.Specifically, in one embodiment of the application, the number for sacrificing notch 101
Amount be 3, then correspondingly, the sacrifice region and the carrier substrate away from 100 1 side surface of flexible substrate just
The opposite clamping zone of this 3 sacrifice regions can be present in.In another embodiment of the application, the sacrifice region
Quantity can also be 45 or 6 or 10.The application to the particular number and without limitation for sacrificing notch 101,
Specifically depending on actual conditions.
On the basis of the above embodiments, in the preferred embodiment of the application, with reference to Fig. 7, Fig. 7 is the flexibility
The overlooking structure diagram of substrate 100, the quantity for sacrificing notch 101 are 3, and notch 101 are sacrificed described in two of them
2 corner regions in 100 bottom edge of flexible substrate, another described sacrifice notch 101 are located at the flexible substrate 100
Top margin middle section.
In the present embodiment, by two 2 corners sacrificed notch 101 and be set to 100 bottom edge of flexible substrate
The reason of region is: the 100 bottom edge near zone of flexible substrate is the binding area of the flexible display panels under normal circumstances
Comparatively dense is arranged in the cabling in domain, middle section, and the middle section on bottom edge, which is difficult to find, is not provided with the display device 200
Region, but the cabling setting of two corner regions on 100 bottom edge of the flexible substrate is relatively sparse, convenient for find be not provided with it is described
The region of display device 200 is to be arranged the sacrifice notch 101 or the sacrifice region.
It should also be noted that, the corner regions refer to the bottom edge vertex including the flexible substrate 100, and side
Boundary is located at the region near the vertex, such as the region label A10 shown in fig. 7, but the sacrifice notch 101 or the sacrifice
The setting in region can cover the vertex for the flexible substrate 100 that the corner regions include, and can not also cover the angle
The vertex for the flexible substrate 100 that domain includes of settling in an area.The application to this and without limitation, specifically depending on actual conditions.
On the basis of the above embodiments, in another preferred embodiment of the application, with reference to Fig. 8, Fig. 8 is described soft
Property substrate 100 overlooking structure diagram, the quantity for sacrificing notch 101 is 4, and 4 the sacrifices notches 101 difference
Positioned at 4 corner regions of the flexible substrate 100.
It should be noted that 4 sacrifice notches 101 or the sacrifice region are set to the flexible substrate 100
4 corner regions set-up mode can be provided in the preparation process of the flexible display panels be relatively easy to find can
Retaining part.
On the basis of the above embodiments, in another embodiment of the application, each area for sacrificing notch is big
In or equal to 0.5mm2。
It should be noted that the area for sacrificing notch is the area for corresponding to the sacrifice region.
Inventor is the study found that the area when the sacrifice region is greater than or equal to 0.5mm2When, that is, can provide can be steady
Clamp hold can retaining part, but simultaneously in order to again far from the display device, the area of the sacrifice region cannot as far as possible
Excessive, in the preferred embodiment of the application, the area of the sacrifice region is 1mm2, in the other embodiments of the application
In, the area of the sacrifice region can also be 0.5mm2Or 0.8mm2Or 1.2mm2, area of the application to the sacrifice region
Specific value and without limitation, specifically depending on actual conditions.
It should also be noted that, the area of each sacrifice region may be the same or different.
The specific structure of the display device is illustrated below, with reference to Fig. 9, Fig. 9 is the flexible display panels edge
BB ' line carries out the cross section structure schematic diagram of section, and the flexible display panels include:
Pixel driver film layer 210 and peripheral drive circuit (being not shown in Fig. 9) positioned at 100 surface of flexible substrate；
Deviate from the display function layer 220 of one side surface of flexible substrate positioned at the pixel driver film layer 210；
Positioned at 100 surface of flexible substrate, by the pixel driver film layer 210, peripheral drive circuit and the display
The encapsulating structure 230 that functional layer 220 is packaged together.
The sacrifice notch of the flexible substrate is not shown in Fig. 9.
It specifically, is the pixel driver film layer, the structure of display function layer and peripheral drive circuit with reference to Figure 10, Figure 10
Schematic diagram, comprising:
Pixel circuit, data drive circuit 213 and first grid driving circuit 214 and second grid driving circuit 215,
Wherein, pixel circuit receives data-signal from the data drive circuit 213 by multiple data lines 211, and by a plurality of
Grid line 212 receives scanning signal from the first grid driving circuit 214 and second grid driving circuit 215.The pixel
Circuit includes the organic light emissive pixels 216 of multiple intersections for being placed in the data line 211 and grid line 212, described organic
Light emitting pixel 216 shines according to the data-signal and scanning signal.
Correspondingly, the embodiment of the present application also provides a kind of flexible display apparatus, including at least one is such as any of the above-described reality
Apply flexible display panels described in example.
Correspondingly, the embodiment of the present application also provides a kind of preparation method of flexible display panels, with reference to Figure 11 and Figure 12,
Figure 11 and Figure 12 is the flow diagram of the preparation method of flexible display panels, comprising:
S101: providing carrier substrate, and the carrier substrate surface is attached with flexible substrate, and the flexible substrate is away from described
Carrier substrate side has multiple sacrifice regions；The carrier substrate has multiple and institute away from one side surface of flexible substrate
State the one-to-one clamping zone of multiple sacrifice regions of flexible substrate, each clamping zone and the corresponding sacrifice
Region is opposite, and the clamping zone and the sacrifice region can retaining parts for providing；With reference to Figure 13, Figure 14 and Figure 15, figure
13, Figure 14 and Figure 15 is the overlooking structure diagram of the carrier substrate, and 300 surface of carrier substrate is attached with flexible substrate
100, the flexible substrate 100 has multiple sacrifice regions 102, and the carrier substrate 300 can be glass substrate, can also be
Quartz base plate, the application to this and without limitation, specifically depending on actual conditions.The flexible substrate described in Figure 13,14 and 15
It is used to form display device in the dotted line limit region on 100 surfaces, and is cut in the subsequent process along dotted line, and to flexible liner
At least one described described flexible display panels are formed after bottom and carrier substrate removing.The display device refer to including for
The display functions of the realization flexible display panels and the device architecture being arranged, including but not limited to multiple thin film transistor (TFT)s,
Cabling, pixel electrode, display function material and public electrode.
S102: at least one display device is formed in region of the flexible substrate surface in addition to the sacrifice region；
With reference to Figure 16, Figure 17 and Figure 18, Figure 16, Figure 17 and Figure 18 structure for the carrier substrate after step S102 and thereon are bowed
Depending on schematic diagram, the display device 200 is formed in region of the flexible substrate 100 in addition to the sacrifice region 102.
Cutting and lift-off processing are carried out to the flexible substrate, obtain multiple flexible display panels；
It is described to the flexible substrate carry out cutting and lift-off processing include:
S1031: cutting process is carried out to the flexible substrate, obtains at least one unstripped flexible display panels, each institute
Stating unstripped flexible display panels includes multiple sacrifice regions, and respectively to the flexibility of the unstripped flexible display panels
Substrate carries out strip operation, so that the flexible substrate of the unstripped flexible display panels is separated with the carrier substrate；With reference to
Figure 19, Figure 19 are the structural schematic diagram of unstripped flexible display panels of the structure after step S1031 shown in Figure 17, described
Unstripped flexible display panels include flexible substrate 100 and be located at 100 surface of flexible substrate except the sacrifice region 102 with
The display device 200 of exterior domain includes multiple sacrifice regions 102 by the flexible display panels that step S1031 is obtained.
Pair specification is needed, includes multiple sacrifice regions 102 by the flexible display panels that step S1031 is obtained, i.e.,
Structure shown in Figure 17 carries out step S1031 acquisition；Can also include a sacrifice region, i.e., to structure shown in Figure 16 into
Row step S1031 is obtained；Also may include tool there are two sacrifice region or no sacrifice region, i.e., to structure shown in Figure 18 into
Row step S1031 is obtained.How many has sacrifice region, sacrificial region to the flexible display panels obtained by step S1031
The quantity in domain is how many needs depending on how many sacrifice on how many display device 200, greatly substrate is arranged on substrate greatly
On region and big substrate depending on the position of sacrifice region, the embodiment of the present invention is not construed as limiting this.
Or
S1032: lift-off processing is carried out to the flexible substrate, so that the flexible liner of at least one flexible display panels
Bottom is separated with the carrier substrate, and carries out cutting process to the flexible substrate after lift-off processing, and it is described soft to obtain at least one
Property display panel.It is structure of the structure shown in Figure 16 by the step S1032 flexible display panels obtained with reference to Figure 20, Figure 20
Schematic diagram, the flexible display panels include flexible substrate 100 and are located at 100 surface of flexible substrate except the sacrifice region
102 with the display device 200 of exterior domain, and the flexible substrate 100 by the step S1032 flexible display panels obtained may
Only include the sacrifice region 102 (with reference to Figure 20), it is also possible to not include that the sacrifice region 102 (refers to Figure 21, Figure 21
Structural schematic diagram for structure shown in Figure 18 by the step S1032 flexible display panels obtained), it is also possible to including two institutes
Stating sacrifice region 102 (is structure shown in Figure 18 by the step S1032 flexible display panels obtained with reference to Figure 22, Figure 22
Structural schematic diagram).Specification is needed, includes multiple sacrifices by the flexible display panels that step S1032 is obtained
Region 102 carries out step S1032 acquisition to structure shown in Figure 17；It can also include a sacrifice region, i.e., to Figure 16
Shown in structure carry out step S1032 acquisition；It also may include that there are two sacrifice region or no sacrifice regions for tool, i.e., to Figure 18
Shown in structure carry out step S1032 acquisition.How many has sacrifice to the flexible display panels obtained by step S1032
Region, sacrifice region quantity be it is how many need to regard how many display device 200 is set on substrate greatly, big open has on substrate
In how many a sacrifice regions and big substrate depending on the position of sacrifice region, the embodiment of the present invention is not construed as limiting this.
It should be noted that in the preparation process of the display device, the sacrifice region 102 and carrier substrate
300 deviate from 100 side of flexible substrate, and the clamping zone opposite with the sacrifice region 102 can clamping part for providing
Position, and since the display device 200 is distributed in area of 101 surface of flexible substrate in addition to the sacrifice region 102
Domain is avoided due to causing to scratch or adhere to impurity to the sacrifice region 102 or the clamping zone in clamping process, and
The caused sacrifice region 100 described when being separated to the flexible substrate 100 with the carrier substrate 300 and the carrier substrate
Between there are still viscosity, and appearance the case where make the display device 200 of the sacrifice region 100 be torn and be damaged, thus
The display device 200 for reducing the flexible display panels is realized in the flexible substrate 100 and the carrier substrate 300 removing
The purpose of impaired probability in the process, improve the flexible display panels prepares yield.
It should also be noted that, the technique for carrying out lift-off processing to the flexible substrate 100 generally uses laser lift-off work
Skill.
On the basis of the above embodiments, in one embodiment of the application, with reference to Figure 23, Figure 23 is described flexible aobvious
Show the flow diagram of the preparation method of panel, it is described that cutting and lift-off processing are carried out to the flexible substrate, obtain at least one
Before a flexible display panels further include:
S1023: cutting the sacrifice region, makes to be formed at the sacrifice region of the flexible substrate and sacrifices notch.
It should be noted that right before being removed the flexible substrate with the carrier substrate using laser lift-off
The sacrifice region is cut, and make to form the purpose for sacrificing notch at the sacrifice region of the flexible substrate to be avoided described
Because of the sacrifice region, there are still viscosity to cause with the carrier substrate with the stripping process of the carrier substrate for flexible substrate
The case where causing the sacrifice region neighboring area to damage when tearing appearance, it is entirely avoided in the flexible substrate and the load
The case where damaging in the stripping process of structure base board to display device appearance, greatly improves the system of the flexible display panels
Standby yield.
It should also be noted that, when it is described to the flexible substrate carry out cutting and lift-off processing be step S1031 when, institute
Stating the step for cutting to the sacrifice region can carry out simultaneously with cutting process is carried out to the flexible substrate；It can also
To first carry out step S1031, then the sacrifice region is cut；First the sacrifice region can also be cut, then
Execute step S1031.
When it is described to the flexible substrate carry out cutting and lift-off processing be step S1032 when, it is described to the sacrificial region
The step for domain is cut is preferably placed at before step S1032, this is because if removing to the flexible substrate
Cutting is carried out to the sacrifice region again after processing and forms the sacrifice notch, just loses and the sacrifice region is cut
The purpose cut: it due to the more difficult removing of sacrifice region i.e. in stripping process, is easy to draw and the region other than sacrifice region is caused to damage
Wound.
With reference to Figure 24-26, Figure 24-26 is the overlooking structure diagram of the flexible display panels prepared in the present embodiment.Figure
The plan structure including 4 flexible display panels for sacrificing notch 101 is shown in 24, is shown in Figure 25 including 1
The plan structure of the flexible display panels for sacrificing notch 101；It is shown in Figure 26 and described sacrifices notch 101 including 2
The plan structure of flexible display panels.The sacrifice notch 101 that the application includes to the flexible substrate 100 of the flexible display panels
Quantity and without limitation, specifically depending on actual fabrication technique.
On the basis of the above embodiments, in another embodiment of the application, with reference to Figure 27 and Figure 28, Figure 27 and figure
28 be the flow diagram of the preparation method of the flexible display panels, described to cut to the sacrifice region, is made described
Sacrifice notch is formed at the sacrifice region of flexible substrate includes:
S10231: cutting the sacrifice region of the flexible substrate, makes shape at the sacrifice region of the flexible substrate
At sacrifice notch；
Or
S10232: the corresponding position of sacrifice region and the carrier substrate and the sacrifice region to the flexible substrate
It is cut, makes to be formed at the sacrifice region of the flexible substrate and sacrifice notch.
Two kinds of modes cut to the sacrifice region are proposed in the present embodiment, and the application uses cutting
Concrete mode and without limitation, specifically depending on actual conditions.
On the basis of the above embodiments, described that the flexible substrate is cut in one embodiment of the application
Cut and lift-off processing before further include:
Anti-skidding film layer is formed away from one side surface of carrier substrate in the sacrifice region.
In the present embodiment, the anti-skidding film layer on the sacrifice region surface is for promoting the coarse of the sacrifice region surface
Degree is preferably being engaged between instrument in clamping process with realizing.
The anti-skidding film layer can use certain procedure during the display device processing procedure and be formed, such as form institute
When stating the thin film transistor (TFT) in display device, using the inorganic material or organic material of each layer structure for forming thin film transistor (TFT)
The anti-skidding film layer is formed on the sacrifice region surface.
Specifically, the anti-skidding film layer can be the silicon dioxide layer or silicon nitride layer that surface has texture structure, may be used also
To be photosensitive material layer of the surface with texture structure.The application does not limit the specific forming material of the anti-skidding film layer
It is fixed, specifically depending on actual conditions.
In conclusion the embodiment of the present application provides a kind of flexible display apparatus, flexible display panels and preparation method thereof,
Wherein, there is the flexible substrate of the flexible display panels at least one to be located at the sacrifice notch at edge, and the sacrifice notch is
To the notch formed after sacrifice region cutting, the sacrifice region in the preparation process of the flexible display panels for providing
Can retaining part, and due to the display device be distributed in the flexible substrate surface except it is described sacrifice notch in addition to area
Domain, avoid due to opposite to the sacrifice region or sacrifice region carrier substrate in clamping process cause scratch or
Adhere to impurity, caused by when being separated to the flexible substrate with the carrier substrate sacrifice region and the carrier base
Between plate there are still viscosity, and appearance the case where make the display device of the sacrifice region be torn and be damaged, thus real
The display device for having showed the reduction flexible display panels is damaged in the flexible substrate and the carrier substrate stripping process
Probability purpose, improve the flexible display panels prepares yield.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (12)
1. a kind of flexible display panels characterized by comprising
There is at least one to be located at the sacrifice notch at edge for flexible substrate, the flexible substrate, and the sacrifice notch is to sacrifice
The notch formed after the cutting of region, the sacrifice region in the preparation process of the flexible display panels for providing and can clamp
Position；
Positioned at the flexible substrate surface except the sacrifice notch is with the display device of exterior domain.
2. flexible display panels according to claim 1, which is characterized in that the sacrifice notch is polygon or round.
3. flexible display panels according to claim 1, which is characterized in that the quantity for sacrificing notch is greater than or equal to
3.
4. flexible display panels according to claim 3, which is characterized in that the quantity for sacrificing notch is 3, wherein
Two 2 corner regions sacrificed notch and be located at the flexible substrate bottom edge, another described sacrifice notch is located at described
The top margin middle section of flexible substrate.
5. flexible display panels according to claim 3, which is characterized in that the quantity for sacrificing notch is 4, and 4
A 4 corner regions sacrificed notch and be located at the flexible substrate.
6. flexible display panels according to claim 1-5, which is characterized in that each area for sacrificing notch
More than or equal to 0.5mm2。
7. a kind of flexible display apparatus, which is characterized in that as claimed in any one of claims 1 to 6 flexible aobvious including at least one
Show panel.
8. a kind of preparation method of flexible display panels characterized by comprising
Carrier substrate is provided, the carrier substrate surface is attached with flexible substrate, and the flexible substrate deviates from the carrier substrate
Side has multiple sacrifice regions；The carrier substrate has the multiple and flexible liner away from one side surface of flexible substrate
The one-to-one clamping zone of multiple sacrifice regions at bottom, each clamping zone and the corresponding sacrifice region phase
Right, the clamping zone and the sacrifice region can retaining parts for providing；
At least one display device is formed in region of the flexible substrate surface in addition to the sacrifice region；
Cutting and lift-off processing are carried out to the flexible substrate, obtain at least one described flexible display panels；
It is described to the flexible substrate carry out cutting and lift-off processing include:
Cutting process is carried out to the flexible substrate, obtains at least one unstripped flexible display panels, it is each described unstripped soft
Property display panel includes multiple sacrifice regions, and is shelled respectively to the flexible substrate of the unstripped flexible display panels
From operation, so that the flexible substrate of the unstripped flexible display panels is separated with the carrier substrate；
Or
Lift-off processing is carried out to the flexible substrate, so that the flexible substrate of at least one flexible display panels and the load
Structure base board separation, and cutting process is carried out to the flexible substrate after lift-off processing, obtain at least one described flexible display panels.
9. the preparation method of flexible display panels according to claim 8, which is characterized in that described to the flexible substrate
Cutting and lift-off processing are carried out, before obtaining at least one flexible display panels further include:
The sacrifice region is cut, makes to be formed at the sacrifice region of the flexible substrate and sacrifices notch.
10. the preparation method of flexible display panels according to claim 9, which is characterized in that described to the sacrificial region
Domain carries out cutting
The sacrifice region of the flexible substrate is cut；Or
Sacrifice region and the carrier substrate and the corresponding position of the sacrifice region to the flexible substrate are cut.
11. the preparation method of flexible display panels according to claim 9, which is characterized in that described to the flexible liner
Bottom carries out before cutting and lift-off processing further include:
Anti-skidding film layer is formed away from one side surface of carrier substrate in the sacrifice region.
12. the preparation method of flexible display panels according to claim 11, which is characterized in that the anti-skidding film layer is table
The silicon dioxide layer or silicon nitride layer or photosensitive material layer of the textured structure of mask.
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| JP2018152191A (en) * | 2017-03-10 | 2018-09-27 | 株式会社ジャパンディスプレイ | Method of manufacturing display device, and flexible film |
| CN109791319B (en) * | 2017-07-10 | 2022-05-17 | 深圳市柔宇科技股份有限公司 | Method and apparatus for peeling flexible substrate |
| CN108766977B (en) * | 2018-05-24 | 2021-04-13 | 京东方科技集团股份有限公司 | OLED display substrate, display panel and preparation method thereof |
| TWI683450B (en) * | 2018-06-29 | 2020-01-21 | 友達光電股份有限公司 | Flexible display panel and method of fabricating the same |
| CN111314512B (en) * | 2020-02-24 | 2021-05-07 | Oppo广东移动通信有限公司 | Flexible screen module and mobile terminal |
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