CN109037480A - Display panel and preparation method thereof - Google Patents
Display panel and preparation method thereof Download PDFInfo
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- CN109037480A CN109037480A CN201810864381.6A CN201810864381A CN109037480A CN 109037480 A CN109037480 A CN 109037480A CN 201810864381 A CN201810864381 A CN 201810864381A CN 109037480 A CN109037480 A CN 109037480A
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- barricade
- display panel
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- display
- encapsulating structure
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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
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/846—Passivation; Containers; Encapsulations comprising getter material or desiccants
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- Optics & Photonics (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The present invention provides display panels and preparation method thereof.The display panel includes backboard, the back plate surface has organic light emitting display array, encapsulating structure is provided on the organic light emitting display array, and barricade, dams setting is between backboard and encapsulating structure, it is arranged around the viewing area of display panel, the material for having gap between viewing area, and forming barricade includes water-absorbent material.The barricade of the display panel can be effectively prevented the inside that extraneous moisture and oxygen invade display panel by the absorption to moisture and oxygen for a long time, so that the packaging effect of display panel is good；Simultaneously, after barricade absorbs moisture and oxygen, adverse effect will not be generated to the display effect of display panel, the display picture of the display panel can be made preferable, display quality is high, high-quality, and barricade around viewing area be arranged, it is at low cost, may make the display panel be applied to Flexible Displays when effect resistant to bending it is more preferable.
Description
Technical field
The present invention relates to field of display technology, specifically, being related to display panel and preparation method thereof.
Background technique
In the related art, when being packaged to display panel, in order to enable the packaging effect of display panel is more preferable, usually
Barricade further can be set on the basis of encapsulating structure.However, even if after being provided with the display panel long-time use of barricade
Still the problem of will appear water oxygen invasion.
Thus, the relevant technologies of existing display panel still have much room for improvement.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, of the invention
One purpose is to propose a kind of moisture that can be effectively prevented the external world for a long time by the absorption to moisture and oxygen
With oxygen invasion, packaging effect is good, display picture is preferable, quality is high, high-quality, at low cost or good effect resistant to bending aobvious
Show panel.
In one aspect of the invention, the present invention provides a kind of display panels.According to an embodiment of the invention, the display
Panel includes backboard, and the back plate surface has organic light emitting display array, is provided on the organic light emitting display array
Encapsulating structure and barricade, the dams setting is between the backboard and the encapsulating structure, around the display panel
The material that viewing area setting has gap between the viewing area, and forms the barricade includes water-absorbent material.On the one hand,
Material due to forming the barricade includes water-absorbent material, can be had for a long time by the absorption to moisture and oxygen
The inside for preventing to effect extraneous moisture and oxygen invasion display panel, so that the packaging effect of the display panel is good；Separately
On the one hand, the barricade comprising water-absorbent material is arranged around the viewing area of the display panel, and the barricade is apart from institute
Viewing area is stated with gap, therefore the barricade still has a certain distance between the viewing area, in the barricade
After absorbing moisture and oxygen, adverse effect will not be generated to the display effect of the display panel, the display can be made
The display picture of panel is preferable, and display quality is high, high-quality, and the barricade is arranged around the viewing area, compared to correlation
Be provided with the barricade in technology on entire display panel, it is at low cost, may make the display panel be applied to it is flexible aobvious
The position that barricade is not provided with when showing, in viewing area will not generate folding s tress, so that the effect resistant to bending of the display panel
Fruit is more preferable.
According to an embodiment of the invention, the encapsulating structure includes at least two layers of inorganic film and is arranged in inorganic film
Between organic film, the inorganic film extends to the non-display area of display panel, and the organic film extends to described aobvious
Show that area edge, the inorganic film are covered on the barricade and are bonded with the barricade.
According to an embodiment of the invention, the barricade includes the first sub- barricade and the second sub- barricade, and first son is kept off
Wall and the second sub- barricade are spaced setting on the direction far from the viewing area.
According to an embodiment of the invention, at least one of the first sub- barricade and the second sub- barricade and the encapsulation
The surface that structure is in contact is curved surface.
According to an embodiment of the invention, the barricade is formed by the water-absorbent material.
According to an embodiment of the invention, the material for forming the first sub- barricade does not include the water-absorbent material, and formed
The material of the second sub- barricade includes the water-absorbent material.
According to an embodiment of the invention, the water-absorbent material is organic material.
According to an embodiment of the invention, the display panel further include: barrier layer, the barrier layer setting are tied in the encapsulation
On surface of the structure far from the barricade, and the barrier layer on the backboard orthographic projection and the barricade on the backboard
At least a part of overlapping of orthographic projection.
According to an embodiment of the invention, the material for forming the barrier layer includes water-absorbent material.
In another aspect of the invention, the present invention provides a kind of methods for making mentioned-above display panel.Root
According to the embodiment of the present invention, this method comprises: providing backboard；The backboard table is surrounded by patterning processes or inkjet printing methods
The organic light emitting display array in face forms barricade；Form the encapsulation knot of the covering organic light emitting display array and the barricade
Structure.This method is simple, convenient, easy to accomplish, easy to industrialized production, and preparing resulting display panel can be by right
Moisture and absorbing for oxygen are invaded to which long-time is effectively prevented extraneous moisture and oxygen, and packaging effect is good, shows picture
Preferably, quality is high, high-quality, at low cost, and in making resulting display panel, the barricade is arranged around the viewing area,
Compared to the barricade is provided on entire display panel in the related technology, the display panel may make to be applied to flexible show
The position that barricade is not provided with when showing, in viewing area will not generate folding s tress, so that the effect resistant to bending of the display panel
Fruit is more preferable.
According to an embodiment of the invention, further include: on surface of the encapsulating structure far from the barricade and with it is described
Barrier layer is formed at the corresponding position of barricade.
According to an embodiment of the invention, forming the barricade includes: to form the by patterning processes or inkjet printing methods
One sub- barricade；The is formed far from the side of the organic light emitting display array in the described first sub- barricade by inkjet printing methods
Two sub- barricades.
Detailed description of the invention
Fig. 1 shows the schematic diagram of the section structure of the display panel of one embodiment of the invention.
Fig. 2 shows the schematic diagram of the section structure of the display panel of another embodiment of the present invention.
Fig. 3 a, Fig. 3 b, Fig. 3 c show the schematic diagram of the section structure of the display panel of yet other embodiments of the invention.
Fig. 4 shows the schematic diagram of the section structure of the display panel of further embodiment of the present invention.
Fig. 5 a, Fig. 5 b, Fig. 5 c show the schematic diagram of the section structure of the display panel of still other embodiments of the present invention.
Fig. 6 shows the flow diagram of the production display panel method of one embodiment of the invention.
Fig. 7 a, Fig. 7 b, Fig. 7 c show the flow diagram of the production display panel method of another embodiment of the present invention.
Fig. 8 shows the flow diagram of the production display panel method of another embodiment of the invention.
Fig. 9 a, Fig. 9 b show the flow diagram of the production display panel method of further embodiment of the present invention.
Figure 10 shows the flow diagram of the production display panel method of further embodiment of the present invention.
Figure 11 shows the schematic diagram of the section structure of the display panel of further embodiment of the present invention.
Appended drawing reference:
10: viewing area 20: non-display area 30: gap 100: display panel 110: backboard 120: organic light emitting display
Array 130: 1301: the first inorganic film of encapsulating structure, 1302: the first organic film, 1303: the second inorganic film 140:
1401: the first sub- barricade 150 of sub- barricade 1402: the second of barricade: barrier layer
Specific embodiment
The embodiment of the present invention is described below in detail.The embodiments described below is exemplary, and is only used for explaining this hair
It is bright, and be not considered as limiting the invention.Particular technique or condition are not specified in embodiment, according to text in the art
It offers described technology or conditions or is carried out according to product description.Reagents or instruments used without specified manufacturer,
For can be with conventional products that are commercially available.
In one aspect of the invention, the present invention provides a kind of display panels 100.According to an embodiment of the invention, ginseng
According to Fig. 1, which includes backboard 110；110 surface of backboard has organic light emitting display array 120, described
Encapsulating structure 120 is provided on organic light emitting display array 120, and for covering, sealing the organic light emitting display array
120；Barricade 140, the barricade 140 are arranged between the backboard 110 and the encapsulating structure 130, surround the display surface
The setting of viewing area 10 of plate 100 is (it should be noted that viewing area 10 of the present invention only shown in Figure 1 herein
With the position of the non-display area 20, in other embodiments later, the viewing area 10 and the non-display area 20 and Fig. 1
Shown in position it is identical, no longer especially indicate), there is gap 30 between the viewing area 10, and form the barricade 140
Material include water-absorbent material.
It on the one hand, can be by moisture and oxygen since the material for forming the barricade 140 includes water-absorbent material
Absorption to be effectively prevented the inside of extraneous moisture and oxygen invasion display panel 100 for a long time so that this is aobvious
Show that the packaging effect of panel 100 is good.On the other hand, the barricade 140 comprising water-absorbent material is around the display panel 100
The viewing area 10 is arranged, and the barricade 140 has a gap 30 between the viewing area 10, thus the barricade 140 away from
It, will not be right after the barricade 140 absorbs moisture and oxygen from still having a certain distance between the viewing area 10
The display effect of the display panel 100 generates adverse effect, and the display picture of the display panel 100 can be made preferable, shows
It is high, high-quality to show quality, and the barricade 140 is arranged around the viewing area 10, compared to entire display surface in the related technology
It is provided with the barricade on plate, it is at low cost, may make the display panel 100 when being applied to Flexible Displays, do not have in viewing area
Folding s tress will not be generated by having the position of setting barricade, so that the effect resistant to bending of the display panel is more preferable.
According to an embodiment of the invention, the backboard 100 may include that underlay substrate and setting are used in combination on underlay substrate
In the circuit structure (such as thin film transistor (TFT), connecting line) for realizing that display panel 100 is normally shown, wherein the substrate
Material category can be the soft plastics such as polyimides, the circuit knot that the circuit structure can use for conventional display panels
Structure no longer excessively repeats herein.It is advantageously implemented the bending of the display panel 100 as a result, and material source is extensive, is easy to get,
Cost is relatively low.
According to an embodiment of the invention, the organic light emitting display array 120 may include electron transfer layer, hole transport
The layer structure of the conventional organic electroluminescent such as layer, no longer excessively repeats, wherein the electron transfer layer, hole transmission layer herein
Material category be electroluminescent organic material, such as can be organometallic complex etc., no longer excessively repeat herein.By
This, material source is extensive, is easy to get, and cost is relatively low, is conducive to display.
According to an embodiment of the invention, the barricade 140 may include the first sub- barricade 1401 and the second son referring to Fig. 2
Barricade 1402, and the first sub- barricade 1401 and the second sub- barricade 1402 are spaced on the direction far from the viewing area
Setting.As a result, between the backboard 110 and the encapsulating structure 130, comprising water-absorbent material is provided with around viewing area
One sub- barricade 1401 and the second sub- barricade 1402, enter institute from the display panel frontside edge by extending moisture and oxygen
The path inside display panel 100 is stated, so that the edge for reducing the display panel 100 enters the possibility of moisture and oxygen, into
One step improves the packaging effect of the display panel 100；Meanwhile the barricade 140 only includes the described first sub- barricade 1401
With described second sub- barricade 1402 the two sub- barricades, the quantity of the sub- barricade is unlikely to excessively, so that this is aobvious
Show that panel 100 realizes narrow frame.
According to an embodiment of the invention, at least one of the first sub- barricade 1401 and the second sub- barricade 1402 with
The surface that the encapsulating structure 130 is in contact is curved surface, can further extend moisture and oxygen from 100 side of display panel
Edge enters the path inside the display panel 100, so that the edge for reducing the display panel 100 enters moisture and oxygen
May, further increase the packaging effect of the display panel 100.
In some embodiments of the invention, referring to Fig. 3 a, the first sub- barricade 1401 and 130 phase of encapsulating structure
The surface of contact is curved surface (it should be noted that in Fig. 3 a of the invention, Fig. 3 b, Fig. 3 c, Fig. 4, Fig. 5 a, Fig. 5 b, Fig. 5 c, figure
In 9b, the described first sub- barricade 1401 is only shown and/or the second sub- barricade 1402 is in contact with the encapsulating structure 130
Surface is curved surface, and the curvature to the curved surface and the number of lug boss, recessed portion, specific shape etc. do not do any limit
System).Enter inside the display panel 100 thus, it is possible to further extend moisture and oxygen from the display panel frontside edge
Path further increase the display surface so that the edge for reducing the display panel 100 enters the possibility of moisture and oxygen
The packaging effect of plate 100, the surface that the first sub- barricade 1401 is in contact with the encapsulating structure 130 is curved surface, by institute
The stress for stating curved surface is smaller, and the display panel 100 is easy to bend, and can further extend moisture and oxygen from the display
Panel frontside edge enters the path inside the display panel 100, so that the edge for reducing the display panel 100 enters water
Divide the possibility with oxygen, further increases the packaging effect of the display panel 100.
In other embodiments of the invention, referring to Fig. 3 b, the second sub- barricade 1402 and the encapsulating structure 130
The surface being in contact is curved surface.Simple process as a result, it is easy to industrialized production, the viewing area far from the display panel 100
The surface that the second sub- barricade 1402 is in contact with the encapsulating structure 130 is curved surface, since the stress of the curved surface is smaller,
The edge of the display panel 100 is set, the display panel 100 can be made to be more suitable using Curved screen, met
Current era development trend, and can further extend moisture and oxygen and enter described show from the display panel frontside edge
Show the path inside panel 100, so that the edge for reducing the display panel 100 enters the possibility of moisture and oxygen, further
Improve the packaging effect of the display panel 100.
In other embodiment of the invention, referring to Fig. 3 c, the first sub- barricade 1401 and the second sub- barricade
1402 surfaces being in contact with the encapsulating structure 130 are curved surface.Viewing area as a result, far from the display panel 100
The surface that the second sub- barricade 1402 is in contact with the encapsulating structure 130 is curved surface, since the stress of the curved surface is smaller,
The edge of the display panel 100 is set, the display panel 100 can be made to be more suitable using Curved screen, met
Current era development trend；In addition, due to the described first sub- barricade 1401 and the second sub- barricade 1402 and the encapsulation
The surface that structure 130 is in contact is curved surface, can extend moisture and oxygen to the maximum extent from the display panel frontside edge
Path into inside the display panel 100, so that the edge for reducing the display panel 100 to the maximum extent enters moisture
With the possibility of oxygen, the packaging effect of the display panel 100 is made to reach best.
According to an embodiment of the invention, on the basis of the material for forming the barricade 140 includes water-absorbent material, more into one
Step ground, the barricade 140 can be formed by the water-absorbent material.Each part of the barricade 140 is by the water suction as a result,
Material is formed, and the better effect of the absorption to moisture and oxygen can be made, and thereby may be ensured that the longer time is effectively prevented
The inside of extraneous moisture and oxygen invasion display panel, so that the packaging effect of the display panel is more preferable.
According to an embodiment of the invention, on the basis of the material for forming the barricade 140 includes water-absorbent material, more into one
Step ground, the material for forming the first sub- barricade 1401 does not include the water-absorbent material, and forms the second sub- barricade 1402
Material include the water-absorbent material.Not due to the sub- barricade 1401 in viewing area closer first apart from the display panel 100
Moisture and oxygen can be absorbed, the second sub- barricade 1402 still has a certain distance apart from the viewing area, can be into one
While step improves packaging effect, that takes into account the organic light emitting display array 120 goes out light, guarantees that packaging effect reaches best same
When guarantee the light-out effect of the organic light emitting display array 120 so that the display effect of the display panel 100 reaches most
It is good, and can use for a long time, stability is good, is easy to industrialization.
According to an embodiment of the invention, the type of the water-absorbent material both can be inorganic water-absorbent material, or have
Machine water-absorbent material.In some embodiments of the invention, the type of the water-absorbent material is organic water-absorbent material.Due to organic material
The stress of material is smaller, and the stress at the display panel frontside edge can be made smaller, so that the side of the display panel 100
It is easy to bend at edge, therefore the display panel 100 can be made to be more suitable using Curved screen；Meanwhile to the display surface
When the edge of plate 100 is cut, since organic water-absorbent material can absorb moisture and oxygen, therefore it can solve right
The problem of entering moisture and oxygen at crack when the edge of the display panel 100 is cut, and then institute can be made
It states display panel 100 and realizes narrow frame.
In some specific embodiments of the present invention, the type of organic water-absorbent material can be silica gel, polyacrylamide
Amine, polyvinyl alcohol or Sodium Polyacrylate.As a result, material source extensively, be easy to get, cost is relatively low, and water imbibition is preferable, can be with
Further such that the stress at the display panel frontside edge is smaller, so that the edge of the display panel 100 is easy to curved
Folding, therefore the display panel 100 can be made to be more suitable using Curved screen；Meanwhile at the edge to the display panel 100
When being cut, moisture and oxygen are absorbed due to silica gel, polyacrylamide, polyvinyl alcohol or Sodium Polyacrylate
Effect is more preferable, therefore can further solve to enter water at the crack when the edge to the display panel 100 is cut
Point and the problem of oxygen, and then the realization of display panel 100 narrow frame can be made.
According to an embodiment of the invention, the encapsulating structure 130 may include the inorganic film of multiple alternately laminated settings
And organic film, wherein orthographic projection of the organic film on the backboard 110 and the viewing area are in the backboard 110
On orthographic projection overlapping, around the viewing area non-display area in, two adjacent inorganic films are in contact.Below
It is inorganic including the first inorganic film 1301, the first organic film 1302 and second being arranged alternately with the encapsulating structure 130
Illustrate the structure of the display panel 100 of the present embodiment for film layer 1303.Referring to Fig. 4, the encapsulating structure of the display panel 100
130 include the first inorganic film 1301, the first organic film 1302 and the second inorganic film 1303 being arranged alternately, wherein institute
The viewing area of orthographic projection of first organic film 1302 on the backboard 110 and the display panel 100 is stated in the backboard 110
On orthographic projection overlapping, in the non-display area around the viewing area of the display panel 100, first inorganic film 1301 with
Second inorganic film 1302 contacts with each other.Due to the combination between the first inorganic film 1301 and the second inorganic film 1303
Power is eager to excel relative to the first inorganic film 1301 and the first organic film 1302, therefore can be further such that the display panel
100 packaging effect is good.
According to an embodiment of the invention, the display panel 100 can also include: barrier referring to Fig. 5 a, Fig. 5 b and Fig. 5 c
Layer 150, the barrier layer 150 is arranged on surface of the encapsulating structure 130 far from the barricade 140, and the barrier layer
150 on the backboard 110 orthographic projection and orthographic projection of the barricade 140 on the backboard 110 it is at least a part of heavy
It is folded.In some specific embodiments of the invention, it is remote that the barrier layer 150 can both be provided only on the encapsulating structure 130
(structural schematic diagram can also be provided only on the encapsulating structure referring to Fig. 5 a) on surface from the described first sub- barricade 1401
(the encapsulation knot can also be arranged in referring to Fig. 5 b) in structural schematic diagram on 130 surfaces far from the described second sub- barricade 1402
(structural schematic diagram is referring to Fig. 5 c) on surface of the structure 130 far from the described first sub- barricade 14015 and the second sub- barricade 1402.
Barrier layer is set in the upper surface of first inorganic film 1301 and the second inorganic film 1303 as a result, described first can be made
It combines even closer between inorganic film 1301 and the second inorganic film 1303, the display panel can be further prevented
100 edge enters moisture and oxygen, therefore can be further such that the packaging effect of the display panel 100 is good.
According to an embodiment of the invention, the material for forming the barrier layer 150 may include water-absorbent material.Further
Ground, the material for forming the barrier layer 150 may include organic water-absorbent material.In some specific embodiments of the present invention, shape
It can be silica gel, polyacrylamide, polyvinyl alcohol or Sodium Polyacrylate etc. at the material of the barrier layer 150.As a result, may be used
To enhance absorption of the edge of the display panel 100 to moisture and oxygen, meanwhile, first inorganic film can be made
1301 and second combine between inorganic film 1303 even closer, can further prevent the edge of the display panel 100
Place enters moisture and oxygen, therefore can be further such that the packaging effect of the display panel 100 is good.
In another aspect of the invention, the present invention provides a kind of methods for making mentioned-above display panel 100.
According to an embodiment of the invention, a, Fig. 7 b, Fig. 7 c referring to figure 6 and figure 7, method includes the following steps:
S100: providing the backboard 110 that surface has organic light emitting display array 120, (structural schematic diagram is referring to Fig. 7 a).
According to an embodiment of the invention, forming the organic light emitting display array 120 on the surface of the backboard 110
Technique may include vacuum evaporation, chemical vapor deposition, spin coating and inkjet printing etc..It is simple, convenient as a result, it is easy
It realizes, easy to industrialized production, yields is high and cost is relatively low.
S200: the organic light emitting display array on 110 surface of backboard is surrounded by patterning processes or inkjet printing methods
120 form barricade 140, and (structural schematic diagram is referring to Fig. 7 b).
According to an embodiment of the invention, the barricade 140 can both be formed by the method for patterning processes, can also pass through
The method of inkjet printing is formed, wherein the technique that the barricade 140 is formed by the method for inkjet printing it is relatively simple and at
This is lower, while being easy to form curved surface on the surface of the barricade 140.The patterning processes may include in the backboard 110
Upper formation pre-made film, coating photoresist, exposure, development, etching, photoresist lift off, to form the barricade
140。
S300: the encapsulating structure 130 of the formation covering organic light emitting display array 120 and the barricade 140 (show by structure
It is intended to referring to Fig. 7 c).
According to an embodiment of the invention, the technique for forming the encapsulating structure 130 may include vacuum evaporation, chemical gaseous phase
Deposition, spin coating and inkjet printing etc..Simple, convenient as a result, easy to accomplish, easy to industrialized production, yields is high
And cost is relatively low.
In other embodiments of the invention, in above-mentioned steps, S100: it is formed on the surface of the backboard 110
(structural schematic diagram is referring to Fig. 7 a), S300: being formed and covers 120 He of organic light emitting display array for machine luminescence display array 120
(structural schematic diagram is same as previously described referring to Fig. 3 b), referring to Fig. 8, Fig. 9 a to figure for the encapsulating structure 130 of the barricade 140
9b, S200: barricade 140 is formed around the organic light emitting display array 120 by patterning processes or inkjet printing methods and may be used also
To specifically include:
S210: forming the first sub- barricade 1401 by patterning processes or inkjet printing methods, (structural schematic diagram is referring to figure
9a)。
According to an embodiment of the invention, according to an embodiment of the invention, the first sub- barricade 1401 can both pass through structure
The method of figure technique is formed, and can also be formed by the method for inkjet printing, wherein is formed by the method for inkjet printing described
The technique of first sub- barricade 1401 is relatively simple and cost is relatively low, while can be in the surface shape of the described first sub- barricade 1401
At curved surface.The patterning processes may include on the backboard 110 formed pre-made film, coating photoresist, exposure, development,
Etching, photoresist lift off, to form the described first sub- barricade 1401.
S220: by inkjet printing methods in the described first sub- barricade 1401 far from the organic light emitting display array 120
Side form the second sub- barricade 1402 (structural schematic diagram be referring to Fig. 9 b).
According to an embodiment of the invention, by inkjet printing methods in the described first sub- barricade 1401 far from organic hair
The side of light array of display 120 forms the second sub- barricade 1402.It is relatively simple as a result, easy to accomplish and cost is relatively low, while easily
In in the surface of the described second sub- barricade 1402 formation curved surface.
In other embodiment of the invention, removes above-mentioned steps S100: being formed on the surface of the backboard 110 organic
(structural schematic diagram is referring to Fig. 7 a), S200: having by patterning processes or inkjet printing methods around described for luminescence display array 120
Machine luminescence display array 120 forms barricade 140, and (structural schematic diagram is referring to Fig. 7 b), S300: it is aobvious to form the covering organic light emission
Other than the encapsulating structure 130 (structural schematic diagram reference Fig. 7 c) for showing array 120 and the barricade 140,0 and Figure 11, is somebody's turn to do referring to Fig.1
Method further include:
S400: on surface of the encapsulating structure 130 far from the barricade 140 and position corresponding with the barricade 140
The place of setting forms barrier layer 150 (structural schematic diagram referring to Fig.1 1).
According to an embodiment of the invention, on surface of the encapsulating structure 130 far from the barricade 140 and with it is described
It may include vacuum evaporation, chemical vapor deposition, spin coating that the technique of barrier layer 150 is formed at the corresponding position of barricade 140, and
Inkjet printing etc..Simple, convenient as a result, easy to accomplish, easy to industrialized production, yields is high and cost is relatively low.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (12)
1. a kind of display panel, including backboard, the back plate surface has organic light emitting display array, aobvious in the organic light emission
Show and be provided with encapsulating structure on array, which is characterized in that further include:
Barricade, between the backboard and the encapsulating structure, the viewing area around the display panel is set the dams setting
It sets, the material for having gap between the viewing area, and forming the barricade includes water-absorbent material.
2. display panel according to claim 1, which is characterized in that the encapsulating structure includes at least two layers of inorganic film
And the organic film between inorganic film is set, the inorganic film extends to the non-display area of the display panel, institute
It states organic film and extends to the edge of display area, the inorganic film is covered on the barricade and is bonded with the barricade.
3. display panel according to claim 1 or 2, which is characterized in that the barricade includes the first sub- barricade and second
Sub- barricade, and the first sub- barricade and the second sub- barricade are spaced setting on the direction far from the viewing area.
4. display panel according to claim 3, which is characterized in that the first sub- barricade and the second sub- barricade
At least one of the surface that is in contact with the encapsulating structure be curved surface.
5. display panel according to claim 3, which is characterized in that the barricade is formed by the water-absorbent material.
6. display panel according to claim 3, which is characterized in that the material for forming the first sub- barricade does not include institute
The material stated water-absorbent material, and form the second sub- barricade includes the water-absorbent material.
7. display panel according to claim 1 or 2, which is characterized in that the water-absorbent material is organic material.
8. display panel according to claim 1 or 2, which is characterized in that further include:
Barrier layer, the barrier layer are arranged on surface of the encapsulating structure far from the barricade, and the barrier layer is in institute
It states orthographic projection on backboard and orthographic projection of the barricade on the backboard is at least a part of overlapping.
9. display panel according to claim 8, which is characterized in that the material for forming the barrier layer includes water-absorption material
Material.
10. a kind of method for making display panel of any of claims 1-9 characterized by comprising
Backboard is provided；
Barricade is formed around the organic light emitting display array of the back plate surface by patterning processes or inkjet printing methods；
Form the encapsulating structure for covering the organic light emitting display array and the barricade.
11. according to the method described in claim 10, it is characterized by further comprising:
Barrier layer is formed on surface of the encapsulating structure far from the barricade and at position corresponding with the barricade.
12. method described in 0 or 11 according to claim 1, which is characterized in that forming the barricade includes:
The first sub- barricade is formed by patterning processes or inkjet printing methods；
The second son is formed far from the side of the organic light emitting display array in the described first sub- barricade by inkjet printing methods
Barricade.
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| CN201810864381.6A CN109037480B (en) | 2018-08-01 | 2018-08-01 | Display panel and manufacturing method thereof |
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