CN106876428B - Flexible display panels, its production method and display device - Google Patents
Flexible display panels, its production method and display device Download PDFInfo
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- CN106876428B CN106876428B CN201710063666.5A CN201710063666A CN106876428B CN 106876428 B CN106876428 B CN 106876428B CN 201710063666 A CN201710063666 A CN 201710063666A CN 106876428 B CN106876428 B CN 106876428B
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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
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
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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
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/841—Self-supporting sealing arrangements
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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
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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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- 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
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- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/549—Organic PV cells
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The invention discloses a kind of flexible display panels, its production method and display devices, the non-display area of flexible base board is provided with the first groove, first stops the bottom on dam in the first groove, covers several organic electroluminescence structures and second and the thinner package film layer setting on dam is stopped to stop in region defined by dam first.The propagation direction of crackle is blocked by increasing the interface of different directions using the first blocking dam in this way, crackle to prevent flexible display panels edge from generating is extended to viewing area, and, stop the bottom on dam in the first groove of flexible base board for first, first stops interface of the dam in the first groove with flexible base board formation different directions, these interfaces are conducive to block the propagation direction of crackle, to further prevent crackle to extend to viewing area, achieve the purpose that reduce the chance that water oxygen enters viewing area, and then reduce influence of the water oxygen to organic electroluminescence structure, extend the service life of flexible display panels.
Description
Technical field
The present invention relates to field of display technology, espespecially a kind of flexible display panels, its production method and display device.
Background technique
Currently, OLED (Organic Light-Emitting Diode, organic electroluminescent) device is considered as most having
The flat-panel display device of development potentiality, while being considered as the display technology for being most possibly fabricated to flexible display device.
Existing flexible display panels generally comprise: flexible base board, are provided with resistance in the non-display area of the flexible base board
Dam, the organic electroluminescence structure positioned at the viewing area of flexible base board, and covering organic electroluminescence structure and blocking dam
Thinner package film layer, thinner package film layer generally stacks by organic and Inorganic multilayer；Wherein inorganic layer realizes barrier water oxygen
Effect, and organic layer realizes the effect of planarization, stops dam mainly as the cutoff layer of organic layer.
But existing flexible display panels are when bending or curl in carrying out cutting technique or subsequent use, due to answering
Edge, that is, cut surface of power, flexible display panels is nearby easy to produce crackle, and when crack propagation to viewing area, water oxygen can pass through
Crackle enters viewing area and then influences the service life of flexible display panels.
Summary of the invention
In view of this, being used for the embodiment of the invention provides a kind of flexible display panels, its production method and display device
Prevent influence of the water oxygen to organic electroluminescence structure.
Therefore, the embodiment of the invention provides a kind of flexible display panels, comprising: flexible base board, the flexible base board quilt
It is limited to the non-display area that viewing area surrounds the viewing area；Wherein, several organic electroluminescents are provided in the viewing area
Structure is provided with the first blocking dam and second in the non-display area and stops dam, stops region defined by dam described first
Inside it is additionally provided with the thinner package film layer for covering several organic electroluminescence structures and second blocking dam；
The non-display area of the flexible base board is provided with the first groove, and described first stops the bottom on dam to be embedded in described first
In groove.
Correspondingly, the embodiment of the invention also provides a kind of display device, including it is provided in an embodiment of the present invention any
Flexible display panels.
Correspondingly, the embodiment of the invention also provides a kind of production methods of flexible display panels, comprising:
The first groove is formed in the non-display area of flexible base board；
First is formed on first groove and stops dam, and is formed second in the non-display area of the flexible base board and stopped
Dam forms several organic electroluminescence structures in the viewing area of the flexible base board；
Stop to be formed in region defined by dam described first and covers several organic electroluminescence structures and described
Second stops the thinner package film layer on dam.
The present invention has the beneficial effect that:
Flexible display panels, its production method and display device provided in an embodiment of the present invention, in the non-aobvious of flexible base board
Show that area is provided with the first groove, first stops the bottom on dam in the first groove, cover several organic electroluminescence structures and
Second stops the thinner package film layer setting on dam to stop in region defined by dam first.By stopping dam increase not using first
Equidirectional interface blocks the propagation direction of crackle, so that the crackle for preventing flexible display panels edges from generating expands to viewing area
Exhibition, also, by first stop dam bottom embedded in flexible base board the first groove in, first stop dam in the first groove with it is soft
Property substrate formed different directions interface, these interfaces be conducive to block crackle propagation direction, thus further prevent crackle to
Viewing area extends, and achievees the purpose that reduce the chance that water oxygen enters viewing area, and then reduce water oxygen to organic electroluminescence structure
Influence, extend the service life of flexible display panels.
Detailed description of the invention
Fig. 1 is a kind of the schematic diagram of the section structure of flexible display panels provided in an embodiment of the present invention；
Fig. 2 is a kind of overlooking structure diagram of flexible display panels provided in an embodiment of the present invention；
Fig. 3 is the schematic diagram of the section structure of another flexible display panels provided in an embodiment of the present invention；
Fig. 4 is the schematic diagram of the section structure of another flexible display panels provided in an embodiment of the present invention；
Fig. 5 is the flow chart of the production method of flexible display panels provided in an embodiment of the present invention.
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 the described embodiment is only a part of the embodiment of the present invention, is not whole embodiments.Based on this
Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
Wherein, the size and shape of each structure does not reflect its actual proportions in attached drawing, and purpose is schematically illustrate hair
Bright content.
A kind of flexible display panels provided in an embodiment of the present invention, as shown in Figure 1, comprising: flexible base board 01, flexible base board
01 is defined as viewing area and surrounds the non-display area of viewing area；Wherein, several organic electroluminescent knots are provided in viewing area
Structure 02 is provided with the first blocking dam 03 and second in non-display area and stops dam 04, stops in region defined by dam 03 first
It is additionally provided with the thinner package film layer 05 for covering several organic electroluminescence structures 02 and the second blocking dam 04；
The non-display area of flexible base board 01 is provided with the first groove, and first stops the bottom on dam 03 in the first groove.
Flexible display panels provided in an embodiment of the present invention are provided with the first groove in the non-display area of flexible base board, the
One stops the bottom on dam in the first groove, covers several organic electroluminescence structures and second and stops the thinner package film layer on dam
Setting stops in region defined by dam first.It is blocked in this way by increasing the interface of different directions using the first blocking dam
The propagation direction of crackle so that the crackle for preventing flexible display panels edge from generating is extended to viewing area, also, first is stopped
In the first groove of flexible base board, first stops dam to form different directions with flexible base board in the first groove for the bottom on dam
Interface, these interfaces be conducive to block crackle propagation direction, thus further prevent crackle to viewing area extend, reach reduction
Water oxygen enters the purpose of the chance of viewing area, and then reduces influence of the water oxygen to organic electroluminescence structure, extends Flexible Displays
The service life of panel.
In a kind of wherein embodiment, in flexible display panels provided in an embodiment of the present invention, as shown in Fig. 2, the
Two stop dam 04 to stop dam 03 to stop dam 04 around second around viewing area, first.This is because organic in thinner package film layer 05
What layer was formed generally by the mode of inkjet printing, therefore the second blocking dam 04 can prevent organic layer ink around viewing area
The outside of flexible base board 01 is diffused into when being formed.And the first blocking dam 03 is provided around the second blocking dam 04, therefore
The entire edge of thinner package film layer 05 can all be protected in this way.
In the specific implementation, in flexible display panels provided in an embodiment of the present invention, as shown in Figure 1, first stops dam
The height S1 of 03 relative flexibility substrate 01 is greater than the height S0 of the 06 relative flexibility substrate 01 of edge of thinner package film layer 05.In this way may be used
The side that thinner package film layer 05 can be stopped completely with the first blocking dam 03, on the one hand prevents water oxygen from invading thinner package film layer 05
Side, on the one hand prevent the crack at flexible display panels edge to the border extended of thinner package film layer 05.
In the specific implementation, first due to being located at non-display area stops dam itself close to the edge of flexible display panels,
Therefore, when flexible display panels are bent, the first blocking dam itself is also easy to crack, these crackles also can be to viewing area
Extension.And in view of every side on the first blocking dam is being bent ess-strain when axis direction is mutually perpendicular to flexible display panels
Therefore maximum can use fibrous material to fill the first groove, and the extension of the machine direction of fibrous material and groove
The generation of its own crackle is most avoided that when direction is consistent.Therefore, it in a kind of wherein embodiment, is mentioned in the embodiment of the present invention
In the flexible display panels of confession, the material on the first blocking dam is for one of carbon fiber, glass fibre and carbon nanotube or arbitrarily
Combination.Since the machine direction of carbon fiber, glass fibre or carbon nanotube is consistent with the extending direction of the first groove, because
This itself crackle is less likely to occur when flexible display panels are bent using the first blocking dam that these materials are formed.And
And carbon fiber, glass fibre and carbon nanotube itself also belong to quality by force and flexible, the material being not easily broken.
Further, in flexible display panels provided in an embodiment of the present invention, also doped with coupling in the first blocking dam
Agent.Coupling molecule can make the first blocking dam and flexible base board and thinner package film layer form composite material at contact surface in this way,
And organo-mineral complexing can realize the superposition of respective advantage, integrally propose the mechanical performance on the first blocking dam, fundamentally improve product
Plasticity and toughness, achieve the effect that toughening, to further decrease a possibility that the first blocking dam cracks.
In the specific implementation, in flexible display panels provided in an embodiment of the present invention, the chemical general formula of coupling molecule are as follows:
R——SiX3, wherein R indicates that organic-philic group, X indicate close inorganic group.Close inorganic group R in this way in coupling molecule can be with
Inorganic material or reinforcing material effect, and organic-philic group X can be acted on organic material, to make the carbon fiber in the first blocking dam
Dimension, glass fibre or carbon nanotube and flexible base board into and thin-film encapsulation layer form composite material.
In the specific implementation, R has stronger affinity or respond, R base with polymer molecule as organic-philic group
Group can be methyl, vinyl, amino, epoxy group, sulfydryl, acryloxypropyl etc..And X is met water-soluble as close inorganic group
The moisture of moisture or mineral surfaces absorption in liquid, air can cause to decompose, to have with mineral surfaces preferable anti-
Ying Xing, typical X group have alkoxy, aryloxy group, acyl group, chloro etc..The mechanism of action of coupling molecule substantially divides following 3 step: (1)
X group is hydrolyzed to hydroxyl；(2) hydroxyl generates hydrogen bond with hydroxyl existing for mineral surfaces or is dehydrated into ehter bond；(3) R base with have
Machine object combines.
It in the specific implementation, is not stop steam, or even can absorb water in itself since flexible substrate is organic matter, and
One blocking dam is with the ability for stopping water oxygen, therefore first stops dam insertion flexible base board more, and side steam is from entrance
The path of viewing area is longer, and steam is more not easily accessible viewing area, so as to improve the oxygen that blocks water of flexible display panels side
Ability.But consider from manufacture craft angle, in production, flexible base board usually setting carries out subsequent on the glass substrate
Series of process, it needs to separate flexible base board with glass substrate using laser after the completion of this column technique, and using laser
During separation of glasses substrate, in order to guarantee separation without bad, it is ensured that the flexible substrate thickness within the scope of certain thickness
Homogeneity, the thickness range will generally guarantee that in 3um or more, i.e. the thickness of flexible base board thinnest part will guarantee in 3um.And it is soft
The thickness of property substrate is typically no less than 9um, therefore, in flexible display panels provided in an embodiment of the present invention, the first groove
Depth is less than or equal to the 2/3 of flexible base board thickness.It should be noted that above-mentioned dimension data is only used for the above-mentioned reality of the application
The explanation of example is applied, the restriction to the embodiment of the present application is not constituted, in fact, other in the application can realize mode
In, the depth of the first groove or the thickness of flexible base board can be other numerical value, and the application does not limit this.
In the specific implementation, in flexible display panels provided in an embodiment of the present invention, the first blocking dam prolongs in vertical its
The cross section for stretching direction is triangle, trapezoidal or rectangle, and certainly, first stops dam can also in the cross section of its vertical extending direction
To be irregular figure, it is not limited thereto.
In a kind of wherein embodiment, in flexible display panels provided in an embodiment of the present invention, as shown in Figure 1, the
One stops the height S1 of 03 relative flexibility substrate 01 of dam less than the height S2 of the second blocking 04 relative flexibility substrate 01 of dam.In this way may be used
To form gentle slope in the non-display area of flexible display panels, avoids height from rising and falling and form big segment difference, be conducive to subsequent technique
It executes.
In the specific implementation, based on design principle identical with the first blocking dam, in flexibility provided in an embodiment of the present invention
In display panel, as shown in figure 3, being additionally provided with the second groove in flexible base board 01, second stops the bottom on dam 04 to be embedded in second
In groove, outside water oxygen can not only be made to enter the road of viewing area by the gap between the second blocking dam 04 and flexible base board 01
Becoming for diameter side is tortuous, and the interface of the second different directions for stopping dam 04 to be formed in the second groove with flexible base board 01 can
To block the direction of crack propagation, so that crackle be further prevented to extend to viewing area.
In the specific implementation, in flexible display panels provided in an embodiment of the present invention, the depth of the second groove be less than or
Equal to the 2/3 of flexible base board thickness.
In the specific implementation, in flexible display panels provided in an embodiment of the present invention, second stop dam can using with
The identical material of some film layers in viewing area is formed, for example, second stop dam can by display area planarization layer,
Pixel defining layer and support column are formed in composition.
In the specific implementation, in flexible display panels provided in an embodiment of the present invention, the material on the second blocking dam may be used also
Think one of carbon fiber, glass fibre and carbon nanotube or any combination, improves the second toughness and plasticity for stopping dam, subtract
A possibility that small second blocking dam itself cracks.
Further, in flexible display panels provided in an embodiment of the present invention, second stops in dam doped with coupling agent,
So that the second blocking dam and flexible base board is formed composite material at contact surface, further enhances the toughness and modeling on the second blocking dam
Property.
In a kind of wherein embodiment, in flexible display panels provided in an embodiment of the present invention, first stop dam and
Second stops the material on dam identical, can be formed simultaneously the first blocking dam and second using a patterning processes in production in this way
Stop dam.
In the specific implementation, in flexible display panels provided in an embodiment of the present invention, thinner package film layer includes inorganic layer
And organic layer, and organic layer and inorganic layer are alternately stacked.
In the specific implementation, as shown in figure 4, thinner package film layer 05 generally comprises two layers of inorganic layer 051 and is clipped in two layers of nothing
Organic layer 052 between machine layer 051.Wherein, the region that the covering of organic layer 052 second stops dam 04 to limit, inorganic layer 051 cover
First region for stopping dam 03 to limit.It should be noted that in other implementations of the application, inorganic layer 051 can also be with
It is the region that only covering second stops dam 04 and the second blocking dam 04 to limit, inorganic layer 051 is also possible to covering first and stops dam
03 region limited, while also covering the first blocking dam 03.
In the specific implementation, in flexible display panels provided in an embodiment of the present invention, flexible base board can be by with soft
Any appropriate insulating materials of property is formed.For example, flexible base board can by such as polyimides (PI), polycarbonate (PC),
Polyether sulfone (PES), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyarylate
(PAR) or the polymer materials such as fiberglass reinforced plastics (FRP) are formed.
Based on the same inventive concept, the embodiment of the invention also provides a kind of display devices, including the embodiment of the present invention to mention
Any of the above-described kind of flexible display panels supplied.The display device can be any having a display function for mobile phone, tablet computer etc.
Flexible product or component.The implementation of the display device may refer to the embodiment of above-mentioned flexible display panels, repeat place no longer
It repeats.
Based on the same inventive concept, the embodiment of the invention also provides a kind of production methods of flexible display panels, such as Fig. 5
It is shown, it may comprise steps of:
S501, non-display area the first groove of formation in flexible base board；
S502, the first blocking dam is formed on the first groove, and form second in the non-display area of flexible base board and stop dam,
Several organic electroluminescence structures are formed in the viewing area of flexible base board；
S503, stop to form several organic electroluminescence structures of covering and the second blocking in region defined by dam first
The thinner package film layer on dam.
The production method of above-mentioned flexible display panels provided in an embodiment of the present invention is arranged in the non-display area of flexible base board
There is the first groove, first stops the bottom on dam in the first groove, covers several organic electroluminescence structures and second and stops
The thinner package film layer setting on dam stops in region defined by dam first.In this way by stopping dam increase not Tongfang using first
To interface block the propagation direction of crackle, so that the crackle for preventing flexible display panels edges from generating is extended to viewing area,
Also, by first stop dam bottom embedded in flexible base board the first groove in, first stop dam in the first groove with flexibility
Substrate forms the interface of different directions, these interfaces are conducive to block the propagation direction of crackle, to further prevent crackle to aobvious
Show that area extends, achievees the purpose that reduce the chance that water oxygen enters viewing area, and then reduce water oxygen to organic electroluminescence structure
It influences, extends the service life of flexible display panels.
Further, in production method provided in an embodiment of the present invention, first is formed on the first groove and stops dam, tool
Body are as follows:
The carbon fiber doped with coupling molecule is inserted in the first groove by the way of inkjet printing, silk-screen printing or coating
One of dimension, glass fibre and carbon nanotube or any combination；
Curing process is carried out to the substance inserted in the first groove and forms the first blocking dam.
In the specific implementation, the chemical general formula of coupling molecule are as follows: R --- SiX3, wherein R indicates that organic-philic group, X indicate parent
Inorganic group.Close inorganic group R in this way in coupling molecule can be acted on inorganic material or reinforcing material, and organic-philic group X
Can be acted on organic material, thus make carbon fiber, glass fibre or carbon nanotube in the first blocking dam and flexible base board and
Thin-film encapsulation layer forms composite material.
In the specific implementation, R has stronger affinity or respond, R base with polymer molecule as organic-philic group
Group can be methyl, vinyl, amino, epoxy group, sulfydryl, acryloxypropyl etc..And X is met water-soluble as close inorganic group
The moisture of moisture or mineral surfaces absorption in liquid, air can cause to decompose, to have with mineral surfaces preferable anti-
Ying Xing, typical X group have alkoxy, aryloxy group, acyl group, chloro etc..The mechanism of action of coupling molecule substantially divides following 3 step: (1)
X group is hydrolyzed to hydroxyl；(2) hydroxyl generates hydrogen bond with hydroxyl existing for mineral surfaces or is dehydrated into ehter bond；(3) R base with have
Machine object combines.
It is being embodied, in production method provided in an embodiment of the present invention further include: in the non-display area shape of flexible base board
The second groove is formed while at the first groove；Second blocking dam is formed in the second groove.
In the specific implementation, in step S502, it can be and be initially formed the first blocking dam, then re-form the second blocking
Dam.It is of course also possible to be that the first blocking dam and the second blocking dam are formed simultaneously, it is not limited thereto.
In the specific implementation, when second stops dam to stop dam to use identical material with first, the second blocking dam and the
One blocking dam can be formed simultaneously.
In the specific implementation, when being initially formed the first blocking dam, when then re-forming the second blocking dam, flexibility can formed
The second blocking dam is formed simultaneously when the figure of other film layers on display panel.Such as in the specific implementation, Organic Electricity is being formed
Before photoluminescence structure, thin film transistor (TFT), passivation layer and planarization layer are also generally formed in the viewing area of flexible base board.It is formed
Organic electroluminescence structure may include forming first electrode layer, pixel confining layer, luminescent layer and the second electrode lay.Second stops
Dam can be made of this three layers of identical materials with passivation layer, planarization layer and pixel confining layer.It forming passivation layer in this way, putting down
The part for belonging to the second blocking dam is formed simultaneously when this three layers of smoothization layer and pixel confining layer.
A kind of flexible display panels, its production method and display device provided in an embodiment of the present invention, in flexible base board
Non-display area is provided with the first groove, and first stops the bottom on dam in the first groove, covers several organic electroluminescent knots
Structure and second stops the thinner package film layer setting on dam to stop in region defined by dam first.In this way by stopping using first
The interface that dam increases different directions blocks the propagation direction of crackle, thus the crackle for preventing flexible display panels edges from generating to
Viewing area extension, also, stop the bottom on dam in the first groove of flexible base board for first, first stops dam recessed first
The interface of different directions is formed in slot with flexible base board, these interfaces are conducive to block the propagation direction of crackle, to further prevent
Crack arrest line extends to viewing area, achievees the purpose that reduce the chance that water oxygen enters viewing area, and then reduce water oxygen to organic electroluminescence
The influence of light emitting structure extends the service life of flexible display panels.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (14)
1. a kind of flexible display panels characterized by comprising flexible base board, the flexible base board be defined as viewing area and
Surround the non-display area of the viewing area；Wherein, several organic electroluminescence structures are provided in the viewing area, it is described non-aobvious
Show that the first blocking dam and second is provided in area stops dam, is additionally provided with covering in the region defined by first blocking dam
The thinner package film layer of several organic electroluminescence structures and second blocking dam, the thinner package film layer include at least one
Layer inorganic layer and at least one layer of organic layer, the thinner package film layer cover several organic electroluminescence structures and described second
Stop the region between dam, and covers described second simultaneously and stop dam, described second that dam and described first is stopped to stop between dam
Region；
The non-display area of the flexible base board is provided with the first groove, and described first stops the bottom on dam to be embedded in first groove
In.
2. flexible display panels as described in claim 1, which is characterized in that described second stops dam to surround the viewing area,
Described first stops dam to stop dam around described second.
3. flexible display panels as described in claim 1, which is characterized in that it is described first stop dam material be carbon fiber,
One of glass fibre and carbon nanotube or any combination.
4. flexible display panels as claimed in claim 3, which is characterized in that also doped with coupling in first blocking dam
Agent.
5. flexible display panels as claimed in claim 4, which is characterized in that the chemical general formula of the coupling molecule are as follows: R ---
SiX3, wherein R indicates that organic-philic group, X indicate close inorganic group.
6. flexible display panels as described in claim 1, which is characterized in that the depth of first groove is less than or equal to institute
State the 2/3 of flexible base board thickness.
7. flexible display panels as described in claim 1, which is characterized in that described first stops the relatively described flexible base board in dam
Height be greater than the thinner package film layer the relatively described flexible base board in edge height.
8. flexible display panels as described in claim 1, which is characterized in that described first stops dam in its vertical extending direction
Cross section be triangle, trapezoidal or rectangle.
9. such as the described in any item flexible display panels of claim 1-8, which is characterized in that described first stops dam relatively described
The height of flexible base board is less than the described second height for stopping the relatively described flexible base board in dam.
10. flexible display panels as claimed in claim 9, which is characterized in that it is recessed to be additionally provided with second in the flexible base board
Slot, described second stops the bottom on dam in second groove, and described second stops the material on dam to be carbon fiber, glass
One of fiber and carbon nanotube or any combination.
11. a kind of display device, which is characterized in that including such as described in any item flexible display panels of claim 1-10.
12. a kind of production method of flexible display panels characterized by comprising
The first groove is formed in the non-display area of flexible base board；
First is formed on first groove and stops dam, and is formed second in the non-display area of the flexible base board and stopped dam；
Several organic electroluminescence structures are formed in the viewing area of the flexible base board；
Stop to be formed in region defined by dam described first and covers several organic electroluminescence structures and described second
Stop the thinner package film layer on dam, wherein the thinner package film layer includes at least one layer of inorganic layer and at least one layer of organic layer, described
Thinner package film layer covers the region between several organic electroluminescence structures and second blocking dam, and covers institute simultaneously
State the region between the second blocking dam, the second blocking dam and first blocking dam.
13. production method as claimed in claim 12, which is characterized in that first, which is formed, on first groove stops dam,
Specifically:
The carbon fiber doped with coupling molecule is inserted in first groove by the way of inkjet printing, silk-screen printing or coating
One of dimension, glass fibre and carbon nanotube or any combination；
Curing process is carried out to the substance inserted in first groove and forms the first blocking dam.
14. production method as claimed in claim 13, which is characterized in that the chemical general formula of the coupling molecule are as follows: R --- SiX3,
Wherein R indicates that organic-philic group, X indicate close inorganic group.
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