CN110299470A - A kind of display panel and display device - Google Patents
A kind of display panel and display device Download PDFInfo
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- CN110299470A CN110299470A CN201910576033.3A CN201910576033A CN110299470A CN 110299470 A CN110299470 A CN 110299470A CN 201910576033 A CN201910576033 A CN 201910576033A CN 110299470 A CN110299470 A CN 110299470A
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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
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Abstract
This application discloses the preparation method of a kind of display panel, display device and display panel, the display panel includes: substrate, and definition has viewing area and the non-display area positioned at non-display area；Encapsulated layer, including the first inorganic layer, organic layer and the second inorganic layer；Wherein, first inorganic layer is covered on the viewing area and the non-display area of the substrate；The organic layer is covered on first inorganic layer, and is located at part first inorganic layer of the viewing area and is exposed from the organic layer positioned at least partly described first inorganic layer of the non-display area；Second inorganic layer is set to the organic layer far from the one side of substrate, and the part exposed from the organic layer with first inorganic layer contacts.By the above-mentioned means, the application can be improved the reliability of encapsulation.
Description
Technical field
This application involves field of display technology, more particularly to a kind of display panel and display device.
Background technique
Currently, display panel generally uses inorganic layer-organic layer-inorganic layer encapsulating structure, wherein inorganic layer have compared with
Good water oxygen obstructing capacity, organic layer have planarization, buffering stress and the ability for covering particle.
Present inventor has found that the water oxygen obstructing capacity of organic layer is poor, extraneous water oxygen in chronic study procedure
It remains to enter by organic layer and corrodes display panel.
Summary of the invention
For the application mainly solving the technical problems that provide a kind of display panel and display device, can be improved encapsulation can
By property.
In order to solve the above technical problems, the technical solution that the application uses is: a kind of display panel is provided, it is described aobvious
Show that panel includes: substrate, definition has viewing area and the non-display area positioned at non-display area；Encapsulated layer, including the first inorganic layer,
Organic layer and the second inorganic layer；Wherein, first inorganic layer is covered in the viewing area of the substrate and described non-display
Qu Shang；The organic layer is covered on first inorganic layer, and be located at the viewing area part first inorganic layer and
At least partly described first inorganic layer positioned at the non-display area exposes from the organic layer；Second inorganic layer is set
The organic layer is placed in far from the one side of substrate, and the part exposed from the organic layer with first inorganic layer connects
Touching.
Wherein, positioned at the part of the non-display area, first inorganic layer exposes from the organic layer, is located at described
The organic layer of non-display area has slope far from the viewing area side, and the ramped surfaces are coarse；Or, being located at described
The part of non-display area first inorganic layer exposes from the organic layer, and the organic layer positioned at the non-display area exists
There is slope far from the viewing area side, the ramped surfaces are provided with multiple grooves, and second inorganic layer is further set
It is placed in the groove surfaces；Or, part first inorganic layer for being located at the non-display area exposes from the organic layer, institute
It states ramped surfaces and is provided with multiple stage portions, second inorganic layer is further disposed upon the stage portion surface.
Wherein, the display panel further include: luminescent layer is set between the substrate and the encapsulated layer, the hair
The corresponding region of photosphere is defined as the viewing area, and the region of the luminescent layer periphery is defined as the non-display area；The hair
Photosphere includes that multiple pixels define block and define the luminescence unit between block positioned at the pixel；Wherein, it is located at the display
The pixel that first inorganic layer in area is set to defines block and the pixel defines the luminescence unit between block
Surface；The organic layer in the viewing area is defined in each pixel to be disconnected at block position, so that corresponding
First inorganic layer of the part at block position is defined in the pixel to expose.
Wherein, the organic layer in the viewing area be set to the adjacent pixel define between block described
The surface of one inorganic layer, and the organic layer defines first inorganic layer at the top side location of block with the pixel is set to
It flushes.
Wherein, the organic layer in the viewing area is set to first inorganic layer far from the substrate one
Side, and the organic layer corresponds to the pixel and defines and is provided with opening at the portion top surface position of block, first inorganic layer from
Expose in the opening.
Wherein, the display panel further include: dykes and dams are set on the non-display area of the substrate；Wherein, described
At least partly surface that first inorganic layer also covers the dykes and dams and the dykes and dams are far from the non-display of the viewing area side
Qu Shang；The organic layer is extended from the viewing area to the non-display area, ends in the dykes and dams adjacent to the display
Area side；Or, the organic layer extends to the dykes and dams away from the viewing area one from the viewing area to the non-display area
On the non-display area of side, and at least partly described first inorganic layer for covering the dykes and dams surface exposes from the organic layer.
Wherein, first inorganic layer at least covers the top surface of the dykes and dams, and positioned at the described of the top surface of the dykes and dams
The surface of first inorganic layer has concaveconvex structure or through-hole；Or, first inorganic layer covers the part of the surface of the dykes and dams, institute
Stating the surface that dykes and dams expose from first inorganic layer has concaveconvex structure or through-hole；Or, the number of the dykes and dams is one.
In order to solve the above technical problems, another technical solution that the application uses is: a kind of display device is provided, including
Display panel in any of the above-described embodiment.
The beneficial effect of the application is: being in contrast to the prior art, is located in display panel provided herein
The first inorganic layer of part of viewing area and it can expose from organic layer positioned at least partly the first inorganic layer of non-display area,
Two inorganic layers can cover the part that organic layer and the first inorganic layer expose from organic layer.It is located at i.e. in the application non-display
The periphery of the organic layer in area is wrapped up by the first inorganic layer and the second inorganic layer, positioned at viewing area organic layer periphery also by first
Inorganic layer can be wrapped up with the second inorganic layer, so as to effectively cut off water oxygen from the path that organic layer is invaded, improve encapsulation
Reliability.
Detailed description of the invention
In order to more clearly explain the technical solutions in the embodiments of the present application, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are only some examples of the present application, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.Wherein:
Fig. 1 is the structural schematic diagram of one embodiment of the application display panel；
Fig. 2 is the partial enlargement diagram of one embodiment of slope in Fig. 1；
Fig. 3 is the partial enlargement diagram of another embodiment in slope in Fig. 1；
Fig. 4 is the structural schematic diagram of one embodiment of non-display area of the application display panel；
Fig. 5 is the structural schematic diagram of another embodiment of non-display area of the application display panel；
Fig. 6 is the structural schematic diagram of another embodiment of non-display area of the application display panel；
Fig. 7 is the structural schematic diagram of another embodiment of non-display area of the application display panel；
Fig. 8 is the structural schematic diagram of another embodiment of non-display area of the application display panel；
Fig. 9 is the structural schematic diagram of another embodiment of the application display panel；
Figure 10 is the structural schematic diagram of one embodiment of the application display device；
Figure 11 is the flow diagram of one embodiment of preparation method of the application display panel.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, rather than whole embodiments.Based on this
Embodiment in application, those of ordinary skill in the art are obtained every other under the premise of not making creative labor
Embodiment shall fall in the protection scope of this application.
Referring to Fig. 1, Fig. 1 is the structural schematic diagram of one embodiment of the application display panel, which can be
OLED display panel, Micro-OLED display panel etc., the display panel include substrate 10 and encapsulated layer 12.
Specifically, the definition of substrate 10 has a viewing area AA and the non-display area CC positioned at the periphery viewing area AA, and substrate 10 can be with
It is flexible substrate, material can be polyimides, polyethylene terephthalate, polyethylene naphthalate etc.；Certainly,
In other embodiments, substrate 10 is also possible to rigid substrate, and material can be silicon etc..
Encapsulated layer 12 includes the first inorganic layer 120, organic layer 122 and the second inorganic layer 124.Wherein, the first inorganic layer 120
It is covered on the viewing area AA and non-display area CC of substrate 10, organic layer 122 is covered on the first inorganic layer 120, and is located at aobvious
Show area AA the first inorganic layer of part 120 and positioned at non-display area CC at least partly the first inorganic layer 120 from organic layer 122
Expose, the second inorganic layer 124 is set to organic layer 122 far from 10 side of substrate, and with the first inorganic layer 120 from organic layer 122
The part of middle exposing contacts.Above-mentioned first inorganic layer 120 and the second inorganic layer 124 can use the modes shape such as chemical vapor deposition
At the material of the first inorganic layer 120 and the second inorganic layer 124 can be nonmetal oxide or metal oxide, nonmetallic oxygen
Compound includes at least one of silicon nitride, silica, silicon oxynitride；Metal oxide includes aluminium oxide, zirconium oxide, titanium oxide
At least one of.Organic layer 122 can be formed by modes such as inkjet printing, coatings, and the material of organic layer 122 can be third
Olefin(e) acid system (for example, polymethyl methacrylate etc.), organic silicon-type (for example, poly- methyl list phenylethylene radical siloxane etc.), ring
Oxygen system (for example, epoxy resin etc.) organic material etc..
I.e. as shown in fig. 1, the periphery in the application positioned at the organic layer 122 of non-display area CC is by the first inorganic layer 120
It is wrapped up with the second inorganic layer 124, the periphery positioned at the organic layer 122 of viewing area AA is also inorganic by the first inorganic layer 120 and second
Layer 124 wraps up, and so as to effectively cut off water oxygen from the path that organic layer 122 is invaded, improves the reliability of encapsulation.
The non-display area CC of display panel in detail below.
In one embodiment, please continue to refer to Fig. 1, positioned at the first inorganic layer of the part of non-display area CC 120 from having
Expose in machine layer 122, the organic layer 122 positioned at non-display area CC has slope 1220, slope far from the side viewing area AA
1220 rough surface, for example, can be by processing modes such as plasmas so that 1220 rough surface of slope.The design method can
To promote the second inorganic layer 124 being subsequently formed and binding force of the organic layer 122 at slope 1220, the second inorganic layer is reduced
The probability of 124 fractures.
In yet another embodiment, as shown in Fig. 2, Fig. 2 is the partial enlargement signal of one embodiment of slope in Fig. 1
Figure.The slope surface 1220a is provided with multiple groove A, and the second inorganic layer 124 being subsequently formed further covers the surface groove A,
The mode that groove A is formed can be mask plate etching etc..The design method can make the second inorganic layer 124 being subsequently formed
Gently decline in the slope outer surface 1220a of organic layer 122 along groove A, and then reduces the risk of the second inorganic layer 124 fracture.
In another embodiment, as shown in figure 3, Fig. 3 is the partial enlargement signal of another embodiment in slope in Fig. 1
Figure.The slope surface 1220b is provided with multiple stage portion B, and the second inorganic layer 124 being subsequently formed further covers stage portion B
The generation type on surface, stage portion B can be in one layer of step-like planarization layer of the slope surface 1220b formation.The design
Mode can make the second inorganic layer 124 being subsequently formed gentle along stage portion B in the slope outer surface 1220b of organic layer 122
Decline, and then reduce the risk of the second inorganic layer 124 fracture.
It in the above-described embodiments, is continuous positioned at the first inorganic layer 120 of non-display area CC；In other embodiments,
As shown in figure 4, Fig. 4 is the structural schematic diagram of one embodiment of non-display area of the application display panel.Positioned at non-display area CC1
The first inorganic layer 120a have opening (not indicating)；Organic layer 122a extends from viewing area to non-display area CC1, and ends in
Opening.Second inorganic layer 124a is set to organic layer 122a far from the side substrate 10a, and with correspond to opening substrate
10a and the first inorganic layer 120a exposed from organic layer 122a contact.Narrow frame may be implemented in the design method.
In embodiment given by above-mentioned Fig. 1 and Fig. 4, non-display area CC, CC1 of display panel are not provided with dykes and dams, when
So, in other embodiments, as shown in figure 5, the display panel can also include: at least one dykes and dams 16b, for example, one, two
It is a, three etc., dykes and dams 16b is set on the non-display area CC2 of substrate 10b, in the present embodiment, dykes and dams 16b and viewing area it
Between distance can foreshorten to less than 150um；Wherein, the first inorganic layer 120b also cover at least partly surface of dykes and dams 16b with
And dykes and dams 16b is far from the non-display area CC2 of viewing area side；Organic layer 122b is set from viewing area to non-display area CC2 extension
It sets, ends in dykes and dams 16b adjacent to viewing area side.Dykes and dams 16b is introduced in the design method, can preferably limit organic layer
The position of 122b.
Certainly, in other embodiments, as shown in fig. 6, organic layer 122c can also prolong from viewing area to non-display area CC3
Dykes and dams 16c is extended on the non-display area CC3 of viewing area side, and at least partly the first of the covering surface dykes and dams 16c is inorganic
Layer 120c exposes from organic layer 122c.For which is compared to the mode in Fig. 5, it can use organic layer 122c and increase display
Panel deviates from the bending resistance of viewing area side in dykes and dams 16c.
In above-mentioned several embodiments, the number of dykes and dams 16b, 16c is one, the design method can reduce dykes and dams 16b,
The quantity that 16c is used, is advantageously implemented narrow frame；In other embodiments, as shown in fig. 7, the number of dykes and dams 16d can be for extremely
Two few, organic layer 122d can also at least partly cover the region between adjacent embankments 16d.The design method can reduce phase
The probability that encapsulated layer between adjacent dykes and dams 16d is broken in bending.
In addition, first inorganic layer 120b, 120c, 120d in above-described embodiment at least covers dykes and dams 16b, 16c, 16d
Top surface, and there is concaveconvex structure positioned at the surface of first inorganic layer 120b, 120c, 120d of the top surface of dykes and dams 16b, 16c, 16d
Or through-hole, so that the binding force between second inorganic layer 124b, 124c, 124d and first inorganic layer 120b, 120c, 120d is more
It is good.
In yet another embodiment, referring to Fig. 8, at least partly surface of dykes and dams 16e is not provided with the first inorganic layer
120e, for example, as shown in Figure 8, the top surface of dykes and dams 16e is not provided with the first inorganic layer 120e.Dykes and dams 16e is from the first inorganic layer
The surface exposed in 120e has concaveconvex structure or through-hole, so that between the second inorganic layer 124e and the surface dykes and dams 16e
Good bonding strength.
In one specifically application scenarios, when the size of display panel is less than 8inch, display provided herein
The width of the frame (i.e. non-display area) of panel can be less than 1mm, and the display panel can be applied to mobile phone, wrist-watch, put down at this time
Plate etc.；When the size of display panel be 8inch between 32inch when, the width of the frame of display panel provided herein
2mm can be less than, the display panel can be applied to plate, car-mounted display etc. at this time；When the size of display panel is more than 32inch
When, the width of the frame of display panel provided herein can be less than 4mm, at this time the display panel can be applied to TV or
Other big display screens etc..
The viewing area AA of display panel is described in detail below.
Referring to Fig. 1, display panel provided herein further includes luminescent layer 14, is set to substrate 10 and encapsulation
Between layer 12, the corresponding region of luminescent layer 14 is defined as viewing area AA, and the region of 14 periphery of luminescent layer is defined as non-display area CC.
In one embodiment, luminescent layer 14 includes that multiple pixels define block 140 and define shining between block 140 positioned at pixel
Unit 142, the region that outermost pixel can be defined between 10 edge of block 140 and substrate are defined as non-display area CC, other
Region is then defined as viewing area AA.The material that pixel defines block 140 can be photoresist, may include polyamides Asia in the photoresist
At least one of amine, polymethyl methacrylate, organosilan material.Pixel defines block 140 on perpendicular to 10 direction of substrate
Section can be trapezoidal in Fig. 1, or other shapes.Luminescence unit 142 may include red light-emitting unit R, indigo plant
Light luminescence unit B and green luminescence unit G can define the area that block 140 defines in pixel by metal or nonmetallic mask plate
The height of the red light-emitting unit R, blue light emitting unit B and the green luminescence unit G that sequentially form, and formed in domain are no more than picture
Element defines the height of block 140.In addition, in the present embodiment, red light-emitting unit R, blue light emitting unit B and green luminescence unit
The light-emitting area of G can be different, for example, considering that the light-emitting area of blue light emitting unit B is compared with red light-emitting list for luminescent lifetime
First R and green luminescence unit G are big.In addition, film is brilliant in this example it is shown that panel can also include tft layer
Body tube layer can shine between substrate 10 and luminescent layer 14 for controlling the luminescence unit 142 in luminescent layer 14.
Please continue to refer to Fig. 1, in the present embodiment, the first inorganic layer 120 in the AA of viewing area is set to pixel circle
Determine block 140 and pixel defines the surface of the luminescence unit 142 between block 140；Organic layer 122 in the AA of viewing area is every
A pixel is defined and is disconnected at 140 position of block, so that corresponding to pixel defines the first inorganic layer of part 120 at 140 position of block
Expose.The design method structure is relatively simple, and technique is easily achieved.
In an application scenarios, as shown in Figure 1, the organic layer 122 being located in the AA of viewing area is set to adjacent pixel circle
Determine the surface of the first inorganic layer 120 between block 140, and organic layer 122 and is set to the top surface location of C that pixel defines block 140
First inorganic layer 120 at place flushes, so that organic layer 122 disconnects at the top surface location of C that pixel defines block 140.This is organic
The design method of layer 122 is relatively simple, and is easily achieved.
In another application scenarios, as shown in figure 9, the structure that Fig. 9 is another embodiment of the application display panel is shown
It is intended to.Organic layer 122f in the AA6 of viewing area is set to the first inorganic layer 120f far from the side substrate 10f, and organic layer
122f respective pixel defines and is provided with opening at the position portion top surface C1 of block 140f, and the first inorganic layer 120f reveals from opening
Out.The design method can reduce the face of the first inorganic layer 120f and the second inorganic layer 124f contact in Fig. 1
Product can reduce the probability of encapsulated layer bending fracture when display panel bending.
Referring to Fig. 10, Figure 10 is the structural schematic diagram of one embodiment of the application display device.The display device includes
Display panel 30 in any of the above-described embodiment.Certainly, in other embodiments, which can also include other knots
Structure, for example, shell 32 etc., shell 32 be can be set in the periphery of the display panel 30, for protecting display panel 30.
Also referring to Fig. 1 and Figure 11, Figure 11 is that the process of one embodiment of preparation method of the application display panel is shown
It is intended to, which includes:
S101: the first inorganic layer 120 is formed in 10 side of substrate, the first inorganic layer 120 continuously covers the display of substrate 10
Area AA and non-display area CC positioned at the periphery viewing area AA.
Specifically, the modes such as chemical vapor deposition be can use and form the first inorganic layer 120 on 10 surface of substrate.
In one embodiment, before above-mentioned steps S101, preparation method provided herein further include: in substrate
10 sides form luminescent layer 14, and the corresponding region of luminescent layer 14 is defined as viewing area AA, and the region of 14 periphery of luminescent layer is defined as
Non-display area CC, luminescent layer 14 include that multiple pixels define block 140 and define the luminous list between block 140 positioned at multiple pixels
Member 142.The specific method for forming luminescent layer 14 can be with are as follows: forms multiple pixels in 10 side of substrate and defines block 140；Then it uses
The modes such as vapor deposition define formation luminescence unit 142 between block 140 in multiple pixels.Above-mentioned steps S101 is specifically included at this time:
Non-display area CC, pixel define block 140, the surface of luminescence unit 142 forms continuous first inorganic layer 120.
S102: forming discrete organic layer 122 far from 10 side of substrate in the first inorganic layer 120, is located at viewing area AA
The first inorganic layer of part 120 and expose from organic layer 122 positioned at the first inorganic layer of the part of non-display area CC 120.
Specifically, it is specifically included referring to Fig. 1, above-mentioned steps S102:
A, the adjacent pixel in the AA of viewing area define the region between block 140 formed using the modes such as inkjet printing it is organic
Layer 122, and organic layer 122 defines the first inorganic layer 120 at the top surface location of C of block 140 with covering pixel and flushes.
B, organic layer 122 is formed on the first inorganic layer 120 of non-display area CC；It is now placed in the organic of non-display area CC
The side wall that layer 122 can define block 140 from outermost pixel extends.In addition, the sequence of step b and above-mentioned steps a can exchange,
Or synchronous progress.
C, removal is located at the part organic layer 122 of non-display area CC, for example, can will be close to display surface edges of boards with mask plate
The part organic layer 122 of edge removes, it can the side of the organic layer 122 positioned at non-display area CC is accurately controlled using mask plate
Boundary, so that the thickness of organic layer 122 is close in the thickness and viewing area AA of the organic layer 122 of the non-display area CC after removal, drop
The probability that low viewing area brightness disproportionation mura occurs；And which can be cancelled in the prior art for limiting organic layer 122
The dykes and dams set, and then it is advantageously implemented narrow frame.
In other embodiments, referring to Fig. 4, above-mentioned steps S102 may be:
A, organic layer 122a is formed on the first surface inorganic layer 120a of viewing area AA1 and non-display area CC1；When being formed with
When the material of machine layer 122a is liquid, organic layer 122a can fill full adjacent pixel and define sunk area between block 140a.
B, removal defines the part organic layer 122a at the top surface position C1 of block 140a positioned at pixel；For example, can use
The mode of etching removes；It is now placed in pixel and defines part the first inorganic layer 120a at the position C1 of the top surface block 140a from organic layer
Expose in 122a.
C, removal is located at the part organic layer 122a of non-display area CC1, for example, can will be close to display panel with mask plate
The part organic layer 122a at edge is removed, it can the organic layer 122a positioned at non-display area CC1 is accurately controlled using mask plate
Boundary so that the thickness of the thickness of the organic layer 122a of the non-display area CC1 after removal and organic layer 122a in the AA1 of viewing area
It is close, reduce the probability that brightness disproportionation mura in viewing area occurs；And which can cancel in the prior art for limit it is organic
The dykes and dams of the position layer 122a, and then it is advantageously implemented narrow frame, improve the reliability of encapsulation.In addition, in other embodiments, on
State step c synchronous can carry out with step b.
Certainly, in other embodiments, the method for forming structure in Fig. 4 can be also other, for example, when forming the first nothing
After machine layer 120a, a resistance can be formed on the first inorganic layer 120a being located at the top surface position C1 that pixel defines block 140a
Block piece；Then organic layer 122a is formed in the way of inkjet printing etc., organic layer 122a can be neat with the height of block piece at this time
It is flat；It, can be by block piece as the material of block piece and the first inorganic layer 120a or the second inorganic layer 124a difference being subsequently formed
Removal；When the material of block piece is with the first inorganic layer 120a or the second inorganic layer 124a being subsequently formed identical, the block piece
It can retain.
In addition, in other embodiments, being located at the part organic layer 122/122a of non-display area CC/CC1 in above-mentioned removal
Later, the remaining organic layer 122/122a of non-display area CC/CC1 has slope 1220/ far from the side viewing area AA/AA1
1220c, preparation method provided herein further include: multiple stage portions are set on the slope surface 1220/1220c, or oblique
The slope surface 1220/1220c forms multiple grooves, or the slope surface 1220/1220c is roughened, so that subsequent
Binding force is more preferable between the organic layer 122/122a of the second inorganic layer 124/124a and the slope position 1220/1220c that are formed, and
The probability that second inorganic layer 124/124a is broken at the 1220/1220c of slope reduces.
S103: the second inorganic layer 124 is formed far from 10 side of substrate in organic layer 122, the second inorganic layer 124 covers organic
The part that layer 122 and the first inorganic layer 120 expose from organic layer 122；So far, the formation of encapsulated layer 12 of display panel.And
In the encapsulated layer 12, positioned at non-display area CC organic layer 122 periphery by the first inorganic layer 120 and the second inorganic layer 124
Package, the periphery positioned at the organic layer 122 of viewing area AA can also be wrapped up by the first inorganic layer 120 with the second inorganic layer 124, from
And water oxygen can be effectively cut off from the path that organic layer 122 is invaded, improve the reliability of encapsulation.
, the application can get rid of the extra organic layer positioned at non-display area before forming the second inorganic layer, and existing
There is technology to compare, when the distance between dykes and dams and viewing area shorten, stretching can far from the organic layer of viewing area side to dykes and dams
To remove before forming the second inorganic layer, and then it may be implemented to reduce the purpose of the distance between dykes and dams and viewing area, and can
To reduce the quantity of dykes and dams, even without dykes and dams, and then it is advantageously implemented narrow frame.
In above-mentioned several embodiments, the non-display area of display panel is not provided with dykes and dams, certainly, in other embodiments
In, as shown in figure 5, being provided at least one dykes and dams 16b on the non-display area CC2 of display panel, the number of dykes and dams 16b can be
One, two, three etc., the setting of dykes and dams 16b can be preferably by the position restriction of organic layer 122b.Above-mentioned steps S102
Middle removal includes: that will stretch on dykes and dams 16b or stretching to dykes and dams 16b positioned at the part organic layer 122b of non-display area CC2
Organic layer 122b far from viewing area side is all removed；In the present embodiment, whole thinned mode or utilization be can use
The mode of first mask plate removal is removed.At this point, organic layer 122b can extend from viewing area to non-display area CC2, cut
Dykes and dams 16b is terminated in adjacent to viewing area side, and does not cover the top surface of dykes and dams 16b.
Certainly, in other embodiments, as shown in fig. 6, removal is positioned at the part of non-display area CC3 in above-mentioned steps S102
Organic layer 122c may also comprise: will stretch on dykes and dams 16c or the organic layer stretched to dykes and dams 16c far from viewing area side
The part 122c removes；In the present embodiment, can use whole thinned mode or in such a way that the first mask plate removes into
Row removal.At this point, organic layer 122c can extend to dykes and dams 16c away from viewing area side from viewing area to non-display area CC3, remove
Outside the top surface dykes and dams 16c does not cover, other regions can be covered.Certainly, in other embodiments, organic layer can also cover dykes and dams
Top surface；Alternatively, organic layer may include at least two spaced regions away from viewing area side in dykes and dams.And work as dykes and dams
When the number of 16d is at least two, as shown in fig. 7, organic layer 122d can also at least partly cover the area between adjacent embankments 16d
Domain.
In another embodiment, provided herein after the above-mentioned organic layer by dykes and dams surface all removes
Packaging method further include: the first inorganic layer for covering dykes and dams and dykes and dams surface all removes, and the structure formed at this time is such as
Shown in Fig. 4.In the present embodiment, the surface of dykes and dams includes its top surface and side, can use the modes such as dry etching and removes the first nothing
Machine layer and dykes and dams, the design method are advantageously implemented narrow frame.
In yet another embodiment, whole in the above-mentioned organic layer 122b by the surface dykes and dams 16b referring to Fig. 5
After removal, packaging method provided herein further include: at the first inorganic layer 120b on the covering surface dykes and dams 16b
Reason, so that the first surface inorganic layer 120b forms concaveconvex structure or through-hole.For example, can use the modes such as dry etching in the first nothing
Through-hole is formed on machine layer 120b；Concave-convex knot is formed on the first surface inorganic layer 120b in another example can use the modes such as plasma
Structure.The design method can make the second inorganic layer 124b being subsequently formed and the first inorganic layer 120b on the surface dykes and dams 16b tie
Resultant force is more preferable.
In yet another embodiment, whole in the above-mentioned organic layer 122e by the surface dykes and dams 16e referring to Fig. 8
After removal, packaging method provided herein further include: remove at least partly the first nothing of the surface dykes and dams 16e covering
Machine layer 120e handles the surface dykes and dams 16e of exposing, so that the surface dykes and dams 16e forms concaveconvex structure or through-hole.This sets
Meter mode can make the binding force between the second inorganic layer 124e being subsequently formed and the surface dykes and dams 16e higher, extend simultaneously
Crack growth path when obstructing path or laser cutting from side water oxygen.
In yet another embodiment, before forming the first inorganic layer, the surface of dykes and dams can also be handled, so that
The surface for obtaining dykes and dams, which forms concaveconvex structure or through-hole, the design method, can make the first inorganic layer and dykes and dams being subsequently formed
Surface between binding force it is higher.
The foregoing is merely presently filed embodiments, are not intended to limit the scope of the patents of the application, all to utilize this
Equivalent structure or equivalent flow shift made by application specification and accompanying drawing content, it is relevant to be applied directly or indirectly in other
Technical field similarly includes in the scope of patent protection of the application.
Claims (10)
1. a kind of display panel, which is characterized in that the display panel includes:
Substrate, definition have viewing area and the non-display area positioned at non-display area；
Encapsulated layer, including the first inorganic layer, organic layer and the second inorganic layer；Wherein, first inorganic layer is covered in the lining
On the viewing area and the non-display area at bottom；The organic layer is covered on first inorganic layer, and is located at described aobvious
Show the part in area first inorganic layer and positioned at the non-display area at least partly described first inorganic layer from described organic
Expose in layer；Second inorganic layer is set to the organic layer far from the one side of substrate, and with first inorganic layer from
The part contact exposed in the organic layer.
2. display panel according to claim 1, which is characterized in that
Positioned at the part of the non-display area, first inorganic layer exposes from the organic layer, positioned at the non-display area
The organic layer has slope far from the viewing area side, and the ramped surfaces are coarse.
3. display panel according to claim 1, which is characterized in that
Positioned at the part of the non-display area, first inorganic layer exposes from the organic layer, positioned at the non-display area
The organic layer has slope far from the viewing area side, and the ramped surfaces are provided with multiple grooves, second nothing
Machine layer is further disposed upon the groove surfaces.
4. display panel according to claim 1, which is characterized in that
Positioned at the part of the non-display area, first inorganic layer exposes from the organic layer, positioned at the non-display area
The organic layer has slope far from the viewing area side, and the ramped surfaces are provided with multiple stage portions, and described second
Inorganic layer is further disposed upon the stage portion surface.
5. display panel according to claim 1, which is characterized in that the display panel further include:
Luminescent layer is set between the substrate and the encapsulated layer, and the corresponding region of the luminescent layer is defined as the display
The region in area, the luminescent layer periphery is defined as the non-display area；The luminescent layer includes that multiple pixels define block and position
The luminescence unit between block is defined in the pixel；
Wherein, first inorganic layer in the viewing area is set to that the pixel defines block and the pixel defines
The surface of the luminescence unit between block；The organic layer in the viewing area defines block position in each pixel
It sets place to disconnect, expose so that corresponding to the pixel and defining first inorganic layer of the part at block position.
6. display panel according to claim 5, which is characterized in that
The adjacent pixel that the organic layer in the viewing area is set to defines first inorganic layer between block
Surface, and the organic layer is flushed with first inorganic layer that the pixel defines at the top side location of block is set to.
7. display panel according to claim 5, which is characterized in that
The organic layer in the viewing area is set to first inorganic layer far from the one side of substrate, and described has
The pixel that machine layer corresponds to defines and is provided with opening at the portion top surface position of block, and first inorganic layer reveals from the opening
Out.
8. display panel according to claim 1, which is characterized in that the display panel further include:
Dykes and dams are set on the non-display area of the substrate；
Wherein, first inorganic layer is also covered in the dykes and dams at least partly surface and the dykes and dams are far from the display
On the non-display area of area side；The organic layer is extended from the viewing area to the non-display area, ends in the dike
Dam is adjacent to the viewing area side；Or, the organic layer extends to the dykes and dams back from the viewing area to the non-display area
On non-display area from the viewing area side, and at least partly described first inorganic layer on the dykes and dams surface is covered from described
Expose in organic layer.
9. display panel according to claim 8, which is characterized in that
First inorganic layer at least covers the top surface of the dykes and dams, and is located at first inorganic layer of the top surface of the dykes and dams
Surface have concaveconvex structure or through-hole；Or, first inorganic layer covers the part of the surface of the dykes and dams, the dykes and dams are from institute
Stating the surface exposed in the first inorganic layer has concaveconvex structure or through-hole；Or, the number of the dykes and dams is one.
10. a kind of display device, which is characterized in that including the described in any item display panels of claim 1-9.
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| CN201910576033.3A CN110299470B (en) | 2019-06-28 | 2019-06-28 | Display panel and display device |
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| CN201910576033.3A CN110299470B (en) | 2019-06-28 | 2019-06-28 | Display panel and display device |
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| CN114843421A (en) * | 2022-04-21 | 2022-08-02 | 武汉华星光电半导体显示技术有限公司 | Display panel and mobile terminal |
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