CN110311057A - Display panel and preparation method thereof and display device - Google Patents
Display panel and preparation method thereof and display device Download PDFInfo
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- CN110311057A CN110311057A CN201910689506.0A CN201910689506A CN110311057A CN 110311057 A CN110311057 A CN 110311057A CN 201910689506 A CN201910689506 A CN 201910689506A CN 110311057 A CN110311057 A CN 110311057A
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/844—Encapsulations
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/122—Pixel-defining structures or layers, e.g. banks
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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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Abstract
The present invention relates to display device technical fields, more particularly to a kind of display panel and preparation method thereof and display device, the display panel, including viewing area and non-display area, further includes: substrate is provided with the first groove in the corresponding basal region of non-display area, the inner sidewall of first groove is inclined-plane, multiple blocking dams are set on the inner sidewall of the first groove, there is the second groove close to each periphery for stopping dam, stop dam identical as base material and be an integral structure；It is cascadingly set on the light emitting structure layer and encapsulated layer of substrate surface, light emitting structure layer is blocked dam disconnection, and is stopping the corresponding region in dam, and encapsulated layer, which is directly covered in, stops dam surface.It is arranged by above structure, it solves the technical issues of the viewing area aperture of display panel leads to water oxygen invasion, package failure, route corrosion, display panel service life is improved, realizing prevents light emitting structure package failure and route from corroding, and improves the technical effect of life of product.
Description
Technical field
The present invention relates to display equipment technical fields, and in particular to a kind of display panel and preparation method thereof and display dress
It sets.
Background technique
With the development of scientific and technological progress and new media, the display devices such as smart phone, tablet computer become people's life
In indispensable part.Display panel is the important component that human-computer interaction is used in display device, based on user to display skill
The demand that art is more, updates, display panel manufacturing are rapidly developed.Organic Light Emitting Diode (Organic
Light-Emitting Diode, OLED), also known as Organic Electricity laser display, organic luminous semiconductor is a kind of using multilayer
Organic thin film structure generates electroluminescent device, and OLED is easy production, and only needs low driving voltage, these features make
OLED is obtained to be widely used in display panel.OLED display panel is with more frivolous than LCD, brightness is high, low in energy consumption, response
Fastly, high, flexible, luminous efficiency the is high advantage of clarity is able to satisfy user to the new demand of display technology.
With the fast development of electronic device industry, requirement of the user to screen accounting is also higher and higher, therefore in display panel
Viewing area aperture become an important development trend.Luminous organic material and metal electrode in display panel are easily by next
The water oxygen contained by the extraneous and internal material influences and oxidation of making moist, therefore in order to guarantee display panel stability and service life, needs
It is packaged in being full of inert gas environment.It will lead to encapsulated layer in aperture when the viewing area aperture in display panel
The problem of locating to disconnect, and then leading to water oxygen invasion, package failure, route corrosion, influences the service life of display panel.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is that overcome causes water oxygen to enter in the viewing area aperture of display panel
It invades, the corrosion of package failure, route, influences the defect of display panel service life, to provide a kind of display panel and its preparation
Method and display device.
First aspect present invention provides a kind of display panel, including viewing area and non-display area, further includes:
Substrate, is provided with the first groove in the corresponding basal region of the non-display area, first groove it is interior
Side wall is inclined-plane, and multiple blocking dams are arranged on the inner sidewall of first groove, close to each periphery tool for stopping dam
There is the second groove, the blocking dam is identical as the base material and is an integral structure；
It is cascadingly set on the light emitting structure layer and encapsulated layer of the substrate surface, the light emitting structure layer is by the resistance
Dam disconnects, and in the corresponding region in the blocking dam, the encapsulated layer is directly covered in the blocking dam surface.
Further, the height for stopping dam is 15-30 μm.
Further, the two neighboring spacing stopped between dam bottom along the parallel bevel direction is greater than 100 μm.
Further, the open end size of first groove is greater than the slot bottom size of first groove.
Further, the slot bottom angulation of the inclined-plane and first groove is obtuse angle；
Preferably, the obtuse angle is 120-150 °.
Further, the encapsulated layer (3) includes the first barrier layer (31) being cascading, buffer layer (32) and
Two barrier layers (33), first barrier layer (31) are disposed in proximity to the side of the substrate (1)；
Preferably, the material selection silicon nitride of first barrier layer (31) and second barrier layer (33), silica,
At least one of silicon oxynitride；The material selection acrylic ester of the buffer layer (32), acrylic acid series, in organosilicon extremely
Few one kind.
Second aspect of the present invention provides a kind of display panel, and above-mentioned display panel aperture is formed, including viewing area and
Non-display area, the non-display area include transition region and aperture area, offer through-hole in the aperture area.
Third aspect present invention provides a kind of preparation method of display panel, comprising:
It provides substrate (1)；
It is formed on the substrate (1) the first groove (4), the second groove is set on the inner sidewall of first groove (4)
Stop dam (5) to be formed；
Light emitting structure layer (2) are formed on the substrate (1)；
Remove the light emitting structure layer (2) for stopping dam (5) surface；
Encapsulated layer (3) are formed in the light emitting structure layer (2) exposed and the surface for stopping dam (5).
Further, after formation encapsulated layer (3) the step of further include:
Hole (9) are opened in the bottom of first groove (4).
Fourth aspect present invention provides a kind of display device, comprising: above-mentioned display panel or above-mentioned preparation method system
Standby display panel.
Display panel provided by the invention opens up the first groove in substrate, and is arranged on the inner sidewall of the first groove
Two grooves are to form blocking dam, and be cascading in substrate light emitting structure layer and encapsulated layer, by stopping dam to make to send out
Photo structure layer is disconnected and the directly packed layer covering in dam is stopped to stop dam and envelope in the bottom opening of the first groove
The collective effect of dress layer can prevent water oxygen from intruding into the inside of display panel by the section that aperture is formed, and solve in display surface
The viewing area aperture of plate leads to the technical issues of water oxygen invasion, package failure, route corrosion, improves display panel and uses the longevity
Life, realizing prevents light emitting structure package failure and route from corroding, and improves the technical effect of life of product.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of display panel in the embodiment of the present invention 1；
Fig. 2 is the top view of display panel in the embodiment of the present invention 2；
Fig. 3 is the cross-sectional view along AA straight line in Fig. 2；
Fig. 4 is the flow chart of display panel preparation method in the embodiment of the present invention.
Appended drawing reference:
1- substrate；2- light emitting structure layer；3- encapsulated layer；The first groove of 4-；5- stops dam；The viewing area 6-；7- non-display area；
The aperture area 8-；80- transition region；9- through-hole；21- array layer；22- light emitting device layer；The first barrier layer of 31-；32- buffer layer；33-
Second barrier layer.
Specific embodiment
Technical solution of the present invention will be clearly and completely described below, it is clear that described embodiment is this hair
Bright a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
Every other embodiment obtained under the premise of creative work is made, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " in ", "upper", "lower", "left", "right", "vertical", " water
It is flat ", "inner", the instructions such as "outside" orientation or positional relationship be to be based on the orientation or positional relationship shown in the drawings, merely to just
In description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with
Specific orientation construction and operation, therefore be not considered as limiting the invention.In addition, term " first ", " second " are only used
In description purpose, it is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
As long as in addition, the non-structure each other of technical characteristic involved in invention described below different embodiments
It can be combined with each other at conflict.
First aspect present invention provides a kind of display panel, as shown in Figure 1, including viewing area 6 and non-display area 7, also wraps
It includes:
Substrate 1, non-display area 7 are provided with the first groove 4 in corresponding 1 region of substrate, and the inner sidewall of the first groove 4 is oblique
Multiple blocking dams 5 are arranged in face on the inner sidewall of the first groove 4, have the second groove, resistance close to each periphery for stopping dam 5
Dam 5 is identical as 1 material of substrate and is an integral structure；
It is cascadingly set on the light emitting structure layer 2 and encapsulated layer 3 on 1 surface of substrate, it is disconnected that light emitting structure layer 2 is blocked dam 5
It opens, and is stopping the corresponding region in dam 5, encapsulated layer 3, which is directly covered in, stops 5 surface of dam.
Display panel provided by the invention opens up the first groove 4 on the base 1, is arranged on the inner sidewall of the first groove 4
Second groove stops dam 5 to be formed, and be cascading on the base 1 light emitting structure layer 2 and encapsulated layer 3, passes through blocking
Dam 5 is disconnected light emitting structure layer 2, and water oxygen corrodes path can not extend to viewing area along luminescent layer, and stop the directly quilt of dam 5
Encapsulated layer 3 covers, and in the bottom opening of the first groove 4, stops the collective effect of dam 5 and encapsulated layer 3 that water oxygen can be prevented logical
The section for crossing aperture formation intrudes into the inside of display panel, and the viewing area aperture solved in display panel causes water oxygen to enter
Invade, package failure, route corrosion the technical issues of, improve display panel service life, realizing prevents light emitting structure from encapsulating
Failure and route corrosion, improve the technical effect of life of product.In addition, the film on inner sidewall can be prevented by stopping the setting on dam 5
Layer sliding, reinforces membranous layer stability.Inventor has found during innovation and creation, puts down if dam will be stopped to be set up directly on substrate
The surface in face, stopping dam to raise upward will increase display panel integral thickness, further, since aperture area can be made by stopping the setting on dam
The non-display area area on periphery increases, and influences display effect, inventor opens up groove in substrate initiatively, and will stop dam
It is arranged on the inner sidewall of groove, for setting in the plane, reduces the non-display area area on aperture area periphery, and
And inclined-plane is able to extend water oxygen intrusion path, and then effectively extends the service life of display panel.
Specifically, above-mentioned substrate 1 is hard substrate or flexible substrates.
In an alternative embodiment, hard substrate uses glass substrate, by laser engraving or the method for cutting in glass
The first groove 4 is formed on substrate, and recessed using laser engraving or the formation second of the technique of cutting on the inner sidewall of the first groove 4
Slot stops dam 5 to ultimately form.
In another alternative embodiment, flexible substrates are using the side for making organic film and inorganic film on the glass substrate
Formula, wherein the material of organic film can for polyimides, polyethylene naphthalate, polyethylene terephthalate,
Polyarylate, polycarbonate, polyether sulfone or polyetherimide, preferably polyimides；The material of inorganic film can for silicon nitride,
Silicon carbide, silicon oxynitride or silica, preferably silicon nitride.In above-mentioned flexible substrates, the thickness of glass substrate is preferably 1-
1.5mm, the thickness of organic film are preferably 0.26-0.3mm, and the thickness of inorganic film is preferably 0.04-0.08mm, pass through laser
The method of etching forms the first groove 4 on organic film and inorganic film, and forms second on the inner sidewall of the first groove 4
Groove stops dam 5 to ultimately form.
Specifically, above-mentioned light emitting structure layer 2 includes array layer 21 and light emitting device layer 22, array layer 21 and light emitting device layer
22 are cascading on the base 1.
In an alternative embodiment, array layer 21 includes multiple thin film transistor (TFT)s (TFT).
In an alternative embodiment, light emitting device layer 22 includes that the anode, hole injection layer, hole being cascading pass
Defeated layer, luminescent layer, electron transfer layer, electron injecting layer and cathode.
The above light emitting structure layer 2 can also use other light emitting structures in the prior art, belong to the prior art, this hair
It is bright that this is not repeated.
Specifically, above-mentioned encapsulated layer 3 can choose any one of organic encapsulation layer, inorganic encapsulated layer, composite package layer.
Such as organic and inorganic-organic composite encapsulated layer can be used, or using the stacking of several organic and inorganic materials, organic material
Polymethyl methacrylate, polyurethane etc. can be selected, inorganic material can select silica, silicon nitride, silicon oxynitride, oxidation
Aluminium, titanium oxide etc..
In an alternative embodiment, encapsulated layer 3 includes the first barrier layer 31, the buffer layer 32 and second being cascading
Barrier layer 33, the first barrier layer 31 are disposed in proximity to the side of substrate 1.Preferably, the material selection nitridation of the first barrier layer 31
At least one of silicon, silica, silicon oxynitride can obstruct steam and oxygen intrusion；The material selection propylene of buffer layer 32
At least one of acid esters system, acrylic acid series, organosilicon can be such that step planarizes, and buffer stress；The material of second barrier layer 33
Matter selects at least one of silicon nitride, silica, silicon oxynitride, can further obstruct steam and oxygen intrusion.First resistance
Interlayer 31 with a thickness of 1-2 μm, buffer layer 32 with a thickness of 0.5-1.5 μm, the second barrier layer 33 is 2-3 μm.Inventor is surveying
It finds after having tried a variety of 3 arrangement modes of encapsulated layer, is sealed with silicon nitride/silicon oxynitride-acrylic acid-silicon nitride/silicon oxynitride
It is best to fill effect: the first barrier layer 31 (silicon nitride/silicon oxynitride) is positioned close to the side of substrate 1, to 2 He of light emitting structure layer
Stop dam 5 tentatively to be encapsulated, due to 31 rough surface of the first barrier layer, therefore needs to be arranged buffer layer 32 (acrylic acid) Lai Jinhang
Buffering is finally arranged the second barrier layer 33 (silicon nitride/silicon oxynitride) and carries out final encapsulation, can further obstruct steam and oxygen
Gas cut enters, and will not impact using the above structure to package quality in subsequent drill process.
In an alternative embodiment, the open end size of the first groove 4 is greater than the slot bottom size of the first groove 4, on the one hand
It is on the other hand tap operation reservation operations space, just convenient for the preparation of light emitting structure layer 2 and encapsulated layer 3 in the first groove 4
In subsequent in 4 bottom opening of the first groove；Preferably, the obtuse-angulate angle of the slot bottom of inclined-plane and the first groove 4 institute is 120-
It 150 °, avoids too small can not achieve of tilt angle and is convenient for preparing light emitting structure layer 2, encapsulated layer 3 and the effect convenient for punching,
Avoid that tilt angle is excessive to increase the area of non-display area around hole simultaneously.The present invention does not make the shape of the first groove 4
Limit out, such as can be bowl slot or annular groove etc..
In an alternative embodiment, the first groove 4 for there was only upper end opening is formed in substrate 1；In another alternative embodiment
In, the edge of substrate 1 is arranged in the first groove 4, is formed with the first groove 4 of upper end opening and surface opening.The application
The position that opens up of first groove 4 is not restricted.
Specifically, above-mentioned blocking dam 5 is for obstructing water oxygen invasion.In an alternative embodiment, stopping dam 5 is setting the
Annular projection on one groove, 4 inner sidewall can be one or more, it is preferable that stop dam 5 at least two, interval setting
In on the inner sidewall of the first groove 4, stopping the height on dam 5 to be 15-30 μm, along parallel oblique between two neighboring 5 bottom of blocking dam
The spacing in face direction is greater than 100 μm.It, being capable of limited extension water oxygen invasion by the way that at least two spaced blocking dams 5 are arranged
Path delays inside water oxygen intrusion light emitting structure, and then extends the service life of display panel.
In an alternative embodiment, it can be not provided with light emitting structure layer 2 on 4 inner sidewall of the first groove, and encapsulation is only set
Layer 3；In another alternative embodiment, between the two neighboring blocking dam 5 on 4 inner sidewall of the first groove and stop dam 5 and the
It is provided with light emitting structure layer 2 between on the outside of one groove, 4 open end, the filling between dam 5 is being stopped by light emitting structure layer 2,
The structural stability for stopping dam 5 is increased, and the packaging effect of encapsulated layer 3 is more preferable.
As the improvement of above-described embodiment, it is additionally provided with touch control layer on encapsulated layer 3, the display panel is made to be used as touch surface
Plate uses.
Second aspect of the present invention provides another display panel, is to be formed by above-mentioned display panel, such as Fig. 2 and Fig. 3
It is shown, including viewing area 6 and non-display area 7, non-display area 7 are the region that opening area can not be shown, including 80 He of transition region
Aperture area 8 offers through-hole 9 in aperture area 8, namely when display panel gets through hole, and non-display area 7 includes transition region 80 and leads to
Hole 9.In an alternative embodiment, transition region 80 is the inclined-plane region of the first groove 4, and aperture area 8 is the slot of the first groove 4
Bottom region.Camera, microphone, loudspeaker, sensor, physical button etc. can be set in through-hole 9.
Third aspect present invention provides a kind of display device, including above-mentioned display panel, such as is equipped with above-mentioned display surface
Mobile phone, tablet computer, vehicle-carrying display screen of plate etc. are integrated by above-mentioned display panel with other component, being assembled together forms.
Fourth aspect present invention provides a kind of preparation method of display panel, as shown in Figure 4, comprising:
Step S1 provides substrate 1.
Substrate 1 can select hard substrate or flexible substrates.Hard substrate takes glass substrate, and flexible substrates need
Organic film and inorganic film are prepared on glass substrate, preparation method can select plasma chemistry to enhance vapour deposition process
(PECVD), the techniques such as physical vapour deposition (PVD) (PVD), atomic layer deposition (ALD), inkjet printing, flash distillation hair, hot evaporation.
Step S2 forms the first groove 4 on the base 1, and the second groove is arranged on the inner sidewall of the first groove 4 to form resistance
Dam 5.
The first groove 4 is formed using laser engraving or the method for cutting on the glass substrate in the case where using hard substrate
With the second groove；The first groove 4 and second is formed in film layer using the method for laser ablation in the case where using flexible substrates
Groove.First groove 4 and the second groove are directly formed using the method for laser engraving, cutting on the glass substrate, make the blocking
Dam 5 is an integral structure with substrate, is similarly glass material, harder for forming blocking dam 5 using film stack
Gu durable, not easily to fall off, water oxygen resistant effect is more ideal.
Step S3 forms light emitting structure layer 2 on the base 1.
The preparation of light emitting structure layer 2 can first prepare array layer 21 on the base 1, then prepare photophore on array layer 21
Part layer 22, the method for preparing above-mentioned light emitting structure layer 2 belong to the prior art, prepare light emitting device layer for example, by using the method for vapor deposition
Each film layer in 22, this will not be repeated here.
Step S4, removal stop the light emitting structure layer 2 on 5 surface of dam.
The light emitting structure layer 2 on 5 surface of dam can will be stopped to remove using the method for laser ablation or plasma bombardment, preferably
Plasma bombardment method, removal stop the purpose of the light emitting structure layer 2 on 5 surface of dam to be subsequently through encapsulated layer 3 and stop dam 5
Water oxygen and light emitting structure layer 2 are kept apart in cooperation, avoid water oxygen invasion damage device.
Step S5 forms encapsulated layer 3 in the light emitting structure layer 2 exposed and the surface for stopping dam 5.
The method for forming encapsulated layer 3 includes: the vapour deposition process of chemical vapor deposition (CVD), plasma enhanced chemical
(PECVD), the techniques such as vapor deposition, spin coating, inkjet printing.
The preparation method of display panel provided by the invention, each film layer can be made with whole face, and complete to make in each film layer
Can be directly in the bottom cutting and boring of the first groove 4 after work, it is convenient to operate, high-efficient.
Further improvement as the embodiment of the present application, further includes:
Step S6 opens hole 9 in the bottom of the first groove 4.
Can according to actual needs, according to preset shape and size in the bear of the first groove 4, punching can be adopted
With the method for laser cutting.
Illustrate technical solution of the present invention below by specific embodiment:
Embodiment 1
The present embodiment provides a kind of display panels, as shown in Figure 1, including glass substrate, offer bowl on the glass substrate
First groove 4 of shape, the depth of the first groove 4 are 1~2mm, and the diameter of 4 open end of the first groove is 6~10mm, slot bottom it is straight
Diameter is 4~8mm, and interval opens up 3 the second grooves to form 3 blocking dams 5 on the inner sidewall of the first groove 4, which is
Annular projection, the two neighboring spacing stopped between 5 bottom of dam along parallel-slope direction are greater than 100 μm, and the height on blocking dam 5 is
15~30 μm, on the outside of the open end of the first groove 4, it is two neighboring stop between dam 5,5 surface of blocking dam of the top is successively set
It is equipped with array layer 21 and light emitting device layer 22, in light emitting device layer 22 and 5 surface of dam is stopped to be disposed with silicon nitride layer, propylene
Acid layer, silicon nitride layer, the outside of 4 open end of the first groove form viewing area 6, form non-display area 7 in the first groove 4.
Embodiment 2
The present embodiment provides a kind of display panels, as shown in figure 3, its main structure is with the display panel in embodiment 1, no
It is with place, is cut according to the dotted line (cutting line) in Fig. 1, through-hole 9 is formed on the bottom of the first groove 4.
Embodiment 3
The present embodiment provides a kind of preparation methods of display panel:
Glass substrate is taken, opens the first bowl-shape groove 4 on the glass substrate using the method for laser engraving；
Interval carves out three the second grooves on the side wall of the first groove 4, and it is convex to form the ring-type that three height are 15 μm
Ring, as blocking dam 5；
Using the method for sputtering and chemical vapor deposition (Sputter+CVD) prepare intact thereon prepare 20~
40 μm of light emitting device layer 22；
Using plasma bombards the light emitting device layer 22 that method removal stops 5 surface of dam；
In the light emitting device layer 22 exposed and the silicon nitride for stopping 5 surface of dam that PECVD method is successively used to prepare 1-2 μm
The acrylate layer, vapor deposition or spin coating method that layer, inkjet printing methods prepare 0.5-1.5 μm prepare 2-3 μm of silicon nitride layer.
Hole 9 is opened in the bottom of the first groove 4 using laser cutting method, obtains the display panel.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (10)
1. a kind of display panel, including viewing area (6) and non-display area (7), which is characterized in that further include:
Substrate (1), the non-display area (7) are provided with the first groove (4) in corresponding substrate (1) region, and described first
The inner sidewall of groove (4) is inclined-plane, multiple blocking dams (5) is arranged on the inner sidewall of first groove (4), close to each institute
It states and stops the periphery of dam (5) that there is the second groove, the blocking dam (5) is identical as the substrate (1) material and is integral type knot
Structure；
It is cascadingly set on the light emitting structure layer (2) and encapsulated layer (3) on the substrate (1) surface, the light emitting structure layer (2)
It is disconnected by the blocking dam (5), and in the corresponding region of the blocking dam (5), the encapsulated layer (3) is directly covered in the resistance
Dam (5) surface.
2. display panel according to claim 1, which is characterized in that the height for stopping dam (5) is 15-30 μm.
3. display panel according to claim 2, which is characterized in that edge between two neighboring blocking dam (5) bottom
The spacing of the parallel bevel direction is greater than 100 μm.
4. display panel according to claim 3, which is characterized in that the open end size of first groove (4) is greater than
The slot bottom size of first groove (4).
5. display panel according to claim 4, which is characterized in that the slot bottom on the inclined-plane and first groove (4)
Angulation is obtuse angle；
Preferably, the obtuse angle is 120-150 °.
6. display panel according to claim 1-5, which is characterized in that the encapsulated layer (3) includes successively layer
The first barrier layer (31), buffer layer (32) and the second barrier layer (33) of folded setting, first barrier layer (31), which is set to, leans on
The side of the nearly substrate (1)；
Preferably, material selection silicon nitride, silica, the nitrogen oxygen of first barrier layer (31) and second barrier layer (33)
At least one of SiClx；The material selection acrylic ester of the buffer layer (32), acrylic acid series, at least one in organosilicon
Kind.
7. a kind of display panel is formed any display panel aperture of claim 1-6, which is characterized in that including aobvious
Show area (6) and non-display area (7), the non-display area (7) includes transition region (80) and aperture area (8), in the aperture area (8)
Offer through-hole (9).
8. a kind of preparation method of display panel characterized by comprising
It provides substrate (1)；
It is formed on the substrate (1) the first groove (4), the second groove is set with shape on the inner sidewall of first groove (4)
At blocking dam (5)；
Light emitting structure layer (2) are formed on the substrate (1)；
Remove the light emitting structure layer (2) for stopping dam (5) surface；
Encapsulated layer (3) are formed in the light emitting structure layer (2) exposed and the surface for stopping dam (5).
9. the preparation method of display panel according to claim 8, which is characterized in that in formation encapsulated layer (3)
After step further include:
Hole (9) are opened in the bottom of first groove (4).
10. a kind of display device characterized by comprising the described in any item display panels of claim 1-9 or right
It is required that the display panel of the preparation of preparation method described in 8 or 9.
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|---|---|---|---|
| CN201910689506.0A CN110311057A (en) | 2019-07-29 | 2019-07-29 | Display panel and preparation method thereof and display device |
| CN201911018008.XA CN110660930B (en) | 2019-07-29 | 2019-10-24 | Display panel, preparation method thereof and display device |
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| CN201910689506.0A CN110311057A (en) | 2019-07-29 | 2019-07-29 | Display panel and preparation method thereof and display device |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN110660930A (en) | 2020-01-07 |
| CN110660930B (en) | 2021-09-03 |
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