CN106601781A - Organic light-emitting display panel and display apparatus - Google Patents
Organic light-emitting display panel and display apparatus Download PDFInfo
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- CN106601781A CN106601781A CN201710060514.XA CN201710060514A CN106601781A CN 106601781 A CN106601781 A CN 106601781A CN 201710060514 A CN201710060514 A CN 201710060514A CN 106601781 A CN106601781 A CN 106601781A
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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
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
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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
- H10K50/842—Containers
- H10K50/8426—Peripheral sealing arrangements, e.g. adhesives, sealants
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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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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The invention discloses an organic light-emitting display panel and a display apparatus. The organic light-emitting display panel comprises a display area and a non-display area, wherein the display area comprises a substrate, a driving circuit layer and an light-emitting device layer disposed on the driving circuit layer; and the non-display area comprises a retaining wall arranged to encircle the display area, the retaining wall comprises at least one support layer, a barrier layer disposed on the support layer and multiple projections formed on the barrier layer, and the multiple projections are successively arranged along a direction away from the display area. The organic light-emitting display panel further comprises a packaging layer which covers the display area and the surfaces of a part of the projections. According to the invention, through designing the multiple projections at the top end of the retaining wall, the edge of the packaging layer can be sealed only by use of one retaining wall, the frame width of the display panel is reduced, the multiple projections generate deformation to make up for slits when being extruded by a mask, through the multiple projections, diffusion paths of reaction gas during deposition are also increased, diffusion can be ended in the multiple projections, and a shadow effect is eliminated.
Description
Technical field
The present embodiments relate to display technology field, more particularly to a kind of organic electroluminescence display panel and display device.
Background technology
In the manufacturing process of organic electroluminescence display panel, thin film envelope is formed in viewing area deposition inoranic membrane using mask plate
Dress Rotating fields, intercept aqueous vapor and corrode luminous organic material.
To ensure that mask plate does not destroy display device and winding displacement, the edge of mask plate is supported using barricade (Bank or Dam),
Barricade has certain altitude.It is the packaging effect for ensureing inorganic encapsulated layer in edge, using multiple barricade shapes in prior art
Into border, and gap is left between barricade, increased border width.
Therefore the border width for how realizing making barricade not increase display floater while there is good sealing effectiveness into
For problem to be solved.
The content of the invention
The present invention provides a kind of organic electroluminescence display panel and display device, to realize effectively sealing encapsulated layer
Dress, and do not increase the border width of display floater.
In a first aspect, a kind of organic electroluminescence display panel is embodiments provided, including viewing area and non-display area.
Viewing area includes substrate, drive circuit layer and the light emitting device layer in drive circuit layer；
Non-display area includes the barricade arranged around viewing area, and barricade is including at least one of which supporting layer, on supporting layer
Barrier layer, and multiple projections being formed on barrier layer, the plurality of raised direction along away from viewing area is arranged in order；
Organic electroluminescence display panel also includes encapsulated layer, and encapsulated layer covers the raised surface in viewing area and part.
Second aspect, embodiments provides a kind of display device, including any of the above-described described display floater.
The embodiment of the present invention provides a kind of organic electroluminescence display panel and display device, including viewing area and non-display area,
Non-display area includes the barricade arranged around viewing area, and barricade includes at least one of which supporting layer, the barrier layer on supporting layer,
With the multiple projections being formed on barrier layer, the plurality of raised direction along away from viewing area is arranged in order.By by barricade
Tip designs be multiple raised relief fabrics so that only needing to a barricade just can realize entering the edge of encapsulated layer
Row sealing, so as to reduce the border width of display floater.In addition, when the mask plate for being used for depositing encapsulation layer is placed on multiple projections
When upper, even if there is gap between mask plate and multiple projections, mask plate makes multiple raised generations to multiple raised faint extruding
Different deformation, can make up gap simultaneously, and multiple projections increased the path of the reacting gas diffusion in deposition process so that expand
Being dispersed in multiple projections just can terminate, so as to eliminate shadow effect.In follow-up cutting technique, also will not be because of cutting to
The encapsulated layer of spilling and cause encapsulated layer rupture and luminescent device affected by external environment.In addition, being provided with barrier layer energy
It is enough further to improve the effect that barricade side intercepts aqueous vapor.
Description of the drawings
Fig. 1 is a kind of structural representation of the barricade of display floater of the prior art；
Fig. 2 is a kind of structural representation of the barricade with shadow effect of display floater of the prior art；
Fig. 3 is a kind of structural representation of organic electroluminescence display panel provided in an embodiment of the present invention；
Fig. 4 is cross-sectional view of the organic electroluminescence display panel along hatching A-A in Fig. 3；
Fig. 5 is cross-sectional view of the organic electroluminescence display panel along hatching B-B in Fig. 3；
Fig. 6 A are the multiple raised structural representations in a kind of barricade provided in an embodiment of the present invention；
Fig. 6 B are the multiple raised structural representations in another kind of barricade provided in an embodiment of the present invention；
Fig. 7 is the cross-sectional view of another kind of organic electroluminescence display panel provided in an embodiment of the present invention；
Fig. 8 is a kind of structural representation of display device provided in an embodiment of the present invention.
Specific embodiment
With reference to the accompanying drawings and examples the present invention is described in further detail.It is understood that this place is retouched
The specific embodiment stated is only used for explaining the present invention, rather than limitation of the invention.It also should be noted that, for the ease of
Description, illustrate only part related to the present invention rather than entire infrastructure in accompanying drawing.
Fig. 1 is a kind of structural representation of the barricade of display floater of the prior art, with reference to Fig. 1, in non-display area,
There are intermediate layer 4, inorganic encapsulated layer 2 and barricade 1 on the substrate 5.Intermediate layer 4 includes signal line layer and insulating barrier etc., and barricade 1 is used
The mask plate 3 (can be removed after its effect is completed) of inorganic encapsulated layer 2 is formed in support.It is in the prior art guarantee barricade
1 packaging effect in edge to inorganic encapsulated layer 2, forms multiple barricades 1 in non-display area, makes to be formed using mask plate 3
Inorganic encapsulated layer 2 shape and structure in Fig. 1 is presented in edge.But interval D 1 is there are between multiple barricades 1, be increased
The border width of display floater.Fig. 2 is that a kind of structure of the barricade with shadow effect of display floater of the prior art is shown
It is intended to, there is intermediate layer 4, inorganic encapsulated layer 2 and barricade 1 on the substrate 5.With reference to Fig. 2, for the ease of description one layer of nothing is only drawn
, there is shadow effect in machine encapsulated layer 2, i.e., when inorganic encapsulated layer 2 is deposited using mask plate 3 in the meeting of edge inorganic encapsulated layer 2
Gap between mask plate 3 and barricade 1 is deposited on outside barricade 1, if having damaged the inorganic envelope being deposited on outside barricade 1 during cutting
Dress layer 2, easily cracks impact side packaging effect, it is therefore desirable to which outer to the spaced D2 of cutting edge in barricade 1, this also can
Increase the border width of display floater.
To solve the above problems, organic electroluminescence display panel is embodiments provided.Fig. 3 is that the embodiment of the present invention is carried
For a kind of organic electroluminescence display panel structural representation, Fig. 4 be in Fig. 3 organic electroluminescence display panel along hatching A-A
Cross-sectional view, with reference to Fig. 3, display floater includes viewing area 11 and non-display area 12 in figure, and non-display area 12 includes
Around the barricade 120 that viewing area 11 is arranged.With reference to Fig. 4, the barricade being primarily directed to due to the embodiment of the present invention in non-display area
Illustrate, so for the substrate included by viewing area, drive circuit layer and the light emitting device layer in drive circuit layer
It is not shown in the diagram.Non-display area includes barricade 120 in Fig. 4, and barricade 120 includes at least one of which supporting layer 121, positioned at support
Barrier layer 122 on layer 121 and multiple raised 123 be formed on barrier layer 122, plurality of raised 123 along away from display
The direction in area is arranged in order；Organic electroluminescence display panel also includes encapsulated layer 13, and encapsulated layer 13 covers viewing area 11 and part
Raised 123 surface.The convex surfaces of outermost at least one do not cover encapsulated layer 13 on barricade 120.Outside is away from described aobvious
Show the direction in area.Encapsulated layer 13 includes inorganic encapsulated layer 131 and 132 and organic encapsulation layer 133, it should be noted that in reality
As needed encapsulated layer 13 may be designed in multilamellar inorganic encapsulated layer and multilamellar organic encapsulation layer in the design of border, and the present invention is implemented
Example is not construed as limiting to this.In addition the substrate 100 of non-display area and the substrate of viewing area are same substrates.It is and existing with reference to Fig. 4
Technology is compared, by by this relief fabric that the tip designs of a barricade 120 are multiple raised 123 so that only need to one
Individual barricade just can be realized sealing the edge of encapsulated layer 13, so as to reduce the border width of display floater.In addition, working as
When being placed on multiple raised 123 for the mask plate 10 of depositing encapsulation layer 13, even if depositing between mask plate 10 and multiple raised 123
In gap, mask plate 10 makes multiple raised 123 to produce different deformation multiple raised 123 faint extruding, can make up generation
Gap, and then weaken shadow effect；Meanwhile, increased the reaction in deposition process even if still suffering from gap, multiple raised 123
The path of gas diffusion, shadow effect just can terminate in multiple raised 123, without spreading to outermost at least one
Projection, so as to encapsulated layer will not spill into the outside of barricade, it is to avoid follow-up encapsulated layer is cut the rupture for causing encapsulated layer.
Also include barrier layer 122 between multiple raised 123 and at least one of which supporting layer 121, inorganic encapsulated layer 131 is multiple raised 123
It is interior to contact with barrier layer 122, further increase the effect that the side of barricade 120 intercepts aqueous vapor.Barrier layer 160 is additionally operable to prevent water
Gas enters into viewing area between inorganic encapsulated layer 131 and intermediate layer 110.
Optionally, in above-mentioned organic electroluminescence display panel, barrier layer 160 is formed by inorganic material or metal material.By
Preferable to the isolation effect of aqueous vapor in inorganic matters and metal material, barrier layer 160 can be inorganic by silicon nitride, aluminium sesquioxide etc.
Thing is constituted, it is also possible to be made up of metal material.Optionally, in above-mentioned organic electroluminescence display panel, barricade surrounds viewing area one
Zhou Lianxu is arranged.With reference to Fig. 3 and 4, by making barricade 120 around viewing area continuous setting in 11 1 weeks, can comprehensively to inorganic
The edge of encapsulated layer 131 and 132 is sealed, it is to avoid leaving certain gaps uncovered by the economic plan and destroy the sealing effectiveness of encapsulated layer 13.
Optionally, in above-mentioned organic electroluminescence display panel, the barricade outside the corner areas of viewing area is circular arc
Barricade；Be correspondingly arranged with circular arc barricade it is fluted, groove be located at circular arc barricade on the inside of non-display area in.Fig. 5 is in Fig. 3
Organic electroluminescence display panel, with reference to Fig. 5, there is on the substrate 100 (the bag of intermediate layer 110 along the cross-sectional view of hatching B-B
Include signal line layer, insulating barrier etc.), barricade 120 and groove 150.With reference to Fig. 3, the barricade outside the corner areas of viewing area
120 is circular arc barricade 120, and with circular arc barricade 120 fluted 150 are correspondingly arranged, and groove 150 is located at circular arc barricade 120
In intermediate layer 110 in the non-display area of inner side.The encapsulated layer of light emitting device layer includes inorganic and has in for sealing viewing area
Machine encapsulated layer, when circular arc barricade 120 is formed, the structure of circular arc reduces the distance of barricade 120 to viewing area herein, in shape
During into organic layer in encapsulated layer, by arranging groove 150 flowing of organic layer herein can be slowed down, make the upper surface of organic layer
It is smooth, it is to avoid the problem of the organic encapsulation layer caused due to forming the barricade of circular arc surface irregularity after its formation.
Optionally, in above-mentioned organic electroluminescence display panel, multiple projections are multiple detached raised, multiple continuous convex
Rise or multiple mutually overlapping projections.Fig. 6 A-B are that the multiple raised structures in a kind of barricade provided in an embodiment of the present invention are shown
It is intended to, with reference to Fig. 6 A and 6B, barricade 120 includes supporting layer 121 (schematically only drawing a layer in figure) and multiple raised 123,
Plurality of raised 123 can be multiple detached raised 123, multiple continuous raised 123 or multiple mutually overlapping projections
123 so that there are more selectivitys in the course of processing of barricade.
Optionally, in above-mentioned organic electroluminescence display panel, the raised cross sectional shape perpendicular to display floater is trapezoidal, long
Square, triangle, square or semicircle.
Optionally, in above-mentioned organic electroluminescence display panel, encapsulated layer also includes at least one of which inorganic encapsulated layer, and at least
The border of one layer of inorganic encapsulated layer is raised wide more than or equal to single with the distance between multiple raised borders away from viewing area
The half of degree.Multiple lobed interiors are located at by making the border of at least one of which inorganic encapsulated layer, it is ensured that barricade rises to encapsulated layer
To sealing function.
Optionally, in above-mentioned organic electroluminescence display panel, light emitting device layer also includes first electrode layer；Barrier layer and the
One electrode layer is formed with layer.Light emitting device layer generally comprises negative electrode and anode, and arranges organic light emission between a cathode and an anode
Material, the first electrode layer can be in negative electrode or anode.The first electrode for being formed in the display area is usually metal
Material, therefore barrier layer 160 can be with the formation simultaneously of the first electrode in viewing area, to reduce processing technique step, reduction adds
Work cost.
Optionally, in above-mentioned organic electroluminescence display panel, barricade also increases layer including at least one of which；Increase layer to be located at extremely
Between few one layer of supporting layer and multiple projections.Fig. 7 is cuing open for another kind of organic electroluminescence display panel provided in an embodiment of the present invention
Face structural representation, with reference to Fig. 7 and Fig. 4, be with the difference of Fig. 4, can be at least one of which supporting layer 121 and multiple convex
Play one layer of increase between 123 and increase layer 124, further increase the height of barricade 120 using layer 124 is increased, with barrier encapsulation layer
Organic encapsulation layer (referring to Fig. 4) flowing.
Optionally, in above-mentioned organic electroluminescence display panel, light emitting device layer also includes pixel defining layer and positioned at pixel
Organic bed course on definition layer, one layer of wherein at least increases layer and is formed with layer with pixel defining layer, multiple raised with organic bed course
Formed with layer.Organic bed course is located between pixel defining layer and encapsulated layer, for protecting luminescent device in manufacturing process
Layer (such as protection cathode layer).During forming light emitting device layer in the display area, pixel defining layer and organic bed course can be formed,
Wherein pixel defining layer is used to determine the forming position of pixel that organic bed course to be used to support the mask plate of depositing light-emitting material.
Therefore the layer 124 that increases in non-display area can be formed with pixel defining layer with layer, multiple raised 123 with the same layer of organic bed course
Formed, to reduce the complexity of barricade processing and reduce procedure of processing, save process costs and process time.
Optionally, in above-mentioned organic electroluminescence display panel, light emitting device layer also includes pixel defining layer；It is multiple it is raised with
Pixel defining layer in viewing area is formed with layer.During forming light emitting device layer in the display area, can also form pixel and determine
Adopted layer, when formed in non-display area in barricade it is multiple raised when, can simultaneously be formed with pixel defining layer, to save technique
Cost and process time.
Optionally, in above-mentioned organic electroluminescence display panel, light emitting device layer also includes planarization layer；At least one of which is supported
Layer is formed with the planarization layer in viewing area with layer.During forming light emitting device layer in the display area, can also be formed flat
Change layer, wherein planarization layer is used to be easier to form other layers, such as pixel defining layer and first electrode above it.When non-
When at least one of which supporting layer in barricade is formed in viewing area, can simultaneously be formed with planarization layer, to save processing step, be subtracted
Few money and time cost.
Optionally, in above-mentioned organic electroluminescence display panel, the width of barricade is 50-90um.With reference to Fig. 4, in the present invention
The width L1 of barricade is preferably 50-90um in embodiment；Multiple raised width L2 are preferably 55-75um；Single raised width
Degree is preferably 15-25um with interval width sum L3 of two adjacent protrusions.Using above-mentioned size range, beneficial to the narrow of display floater
Frameization is designed, and enables the number of projection to reach certain amount, i.e. in wide same of the frame for not making display floater
When, barricade also can play a part of to eliminate shadow effect.
Optionally, in above-mentioned organic electroluminescence display panel, raised number is more than or equal to 3, to play effectively increasing
Plus the evolving path, the purpose of elimination shadow effect.
The embodiment of the present invention additionally provides display device, including any of the above-described display floater.Fig. 8 is that the embodiment of the present invention is carried
For a kind of display device structural representation, with reference to Fig. 8, display device includes display floater 300, and display floater 300 is this
Display floater described in invention any embodiment, wherein, display device can be mobile phone as illustrated in the drawing, or electricity
Brain, television set, intelligence wearing display device etc., the embodiment of the present invention is not particularly limited to this.
The embodiment of the present invention additionally provides a kind of manufacture method of organic electroluminescence display panel, including：Display floater includes
Viewing area and non-display area, method includes：Make positioned at the drive circuit layer of viewing area, light emitting device layer and positioned at non-display
The barricade in area, barricade includes at least one of which supporting layer and the multiple projections at least one of which supporting layer, multiple raised along remote
Direction from viewing area is arranged in order；Encapsulated layer is formed on light emitting device layer and on the part surface away from substrate of barricade.
Specifically, in the manufacture method of organic electroluminescence display panel provided in an embodiment of the present invention, by by the tip designs of barricade
For multiple raised relief fabrics so that only needing to a barricade just can realize sealing the edge of encapsulated layer, from
And reduce the border width of display floater.In addition, when the mask plate for depositing encapsulation layer is placed in multiple projections, even if
There is gap between mask plate and multiple projections, mask plate makes multiple raised generations not similar shape to multiple raised faint extruding
Become, gap can be made up；Meanwhile, multiple projections increased the path of the reacting gas diffusion in deposition process, and diffusion process exists
Just can terminate in multiple projections, so as to eliminate shadow effect.
Optionally, in the manufacture method of above-mentioned organic electroluminescence display panel, make at least one of which in non-display area and support
Layer and the multiple projections being formed at least one of which supporting layer include：Using intermediate tone mask technology at least one of which supporting layer
Form multiple projections.By using intermediate tone mask technology (Half-tone Mask), or to exposure metering and incineration condition
Adjusting Deng technological parameter can form concavo-convex contoured multiple projections of continuously smooth at the top of barricade.
It should be noted that the producing device of organic electroluminescence display panel that the embodiment of the present invention is provided can be used for holding
The manufacture method of the organic electroluminescence display panel that the row embodiment of the present invention is provided, possesses corresponding function and beneficial effect.
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious changes,
Readjust and substitute without departing from protection scope of the present invention.Therefore, although the present invention is carried out by above example
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
More other Equivalent embodiments can be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (10)
1. a kind of organic electroluminescence display panel, including viewing area and non-display area, it is characterised in that
The viewing area includes substrate, drive circuit layer and the light emitting device layer in the drive circuit layer；
The non-display area includes the barricade arranged around the viewing area, and the barricade includes at least one of which supporting layer, is located at
Barrier layer on the supporting layer, and the multiple projections being formed on the barrier layer, wherein the plurality of raised along away from institute
The direction for stating viewing area is arranged in order；
The organic electroluminescence display panel also includes encapsulated layer, and the encapsulated layer covers the viewing area and part raised table
Face.
2. display floater according to claim 1, it is characterised in that the barrier layer is by inorganic material or metal material shape
Into.
3. display floater according to claim 1, it is characterised in that the encapsulated layer includes at least one of which inorganic encapsulated
Layer；
The distance between the border of at least one of which inorganic encapsulated layer and the plurality of raised border away from the viewing area
More than or equal to the half of the single ledge width.
4. display floater according to claim 1, it is characterised in that the light emitting device layer includes first electrode layer；
The barrier layer is formed with the first electrode layer with layer.
5. display floater according to claim 1, it is characterised in that the barricade also increases layer including at least one of which；Institute
State increase layer positioned at least one of which supporting layer and it is the plurality of projection between.
6. display floater according to claim 5, it is characterised in that the light emitting device layer includes pixel defining layer and position
Organic bed course in the pixel defining layer；
Increase layer described in one layer to be formed with layer with the pixel defining layer；
It is the plurality of raised to be formed with layer with organic bed course.
7. display floater according to claim 1, it is characterised in that the light emitting device layer includes pixel defining layer；
It is the plurality of raised to be formed with layer with the pixel defining layer.
8. display floater according to claim 1, it is characterised in that the light emitting device layer includes planarization layer；
Supporting layer described at least one of which is formed with the planarization layer in the viewing area with layer.
9. according to arbitrary described display floater in claim 1-8, it is characterised in that the raised number is more than or equal to 3
It is individual.
10. a kind of display device, including arbitrary described display floater in the claims 1-9.
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