CN105789259B - Organic electroluminescent display panel and preparation method thereof, display device - Google Patents
Organic electroluminescent display panel and preparation method thereof, display device Download PDFInfo
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- 238000002360 preparation method Methods 0.000 title abstract description 5
- 239000010410 layer Substances 0.000 claims abstract description 199
- 239000002346 layers by function Substances 0.000 claims abstract description 70
- 239000000758 substrate Substances 0.000 claims abstract description 30
- 230000004888 barrier function Effects 0.000 claims description 30
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- 238000002834 transmittance Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 8
- 238000000151 deposition Methods 0.000 claims description 8
- 238000005401 electroluminescence Methods 0.000 claims description 8
- 238000007641 inkjet printing Methods 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 6
- 230000008021 deposition Effects 0.000 claims description 6
- 238000007740 vapor deposition Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 4
- 239000005416 organic matter Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 8
- 238000005538 encapsulation Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000005725 8-Hydroxyquinoline Substances 0.000 description 1
- 206010027146 Melanoderma Diseases 0.000 description 1
- 229910003087 TiOx Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- BCAARMUWIRURQS-UHFFFAOYSA-N dicalcium;oxocalcium;silicate Chemical group [Ca+2].[Ca+2].[Ca]=O.[O-][Si]([O-])([O-])[O-] BCAARMUWIRURQS-UHFFFAOYSA-N 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000000609 electron-beam lithography Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000001540 jet deposition Methods 0.000 description 1
- 229960003540 oxyquinoline Drugs 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- HLLICFJUWSZHRJ-UHFFFAOYSA-N tioxidazole Chemical compound CCCOC1=CC=C2N=C(NC(=O)OC)SC2=C1 HLLICFJUWSZHRJ-UHFFFAOYSA-N 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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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
- 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
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
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- Optics & Photonics (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
This application discloses a kind of organic electroluminescent display panel and preparation method thereof, display device, the organic electroluminescent display panel includes: substrate；Organic electroluminescent functional layer on the substrate, wherein the organic electroluminescent functional layer includes open region；Filled layer in the organic electroluminescent functional layer, wherein the open region is at least completely covered in the filled layer；And the cover board on the filled layer.The filled layer being located in the organic electroluminescent functional layer in above-mentioned organic electroluminescent display panel can accept external force, and the organic electroluminescent functional layer of damage organic electroluminescent display panel can be effectively avoided.
Description
Technical field
Present application relates generally to field of display technology more particularly to organic electroluminescent display panel and preparation method thereof,
Display device including the organic electroluminescent display panel.
Background technique
Organic elctroluminescent device has ultralight, ultra-thin, high brightness, big visual angle, low-power consumption, low cost, shines and imitate
The advantages that rate is high, it is considered to be most promising display technology of new generation.
Organic electroluminescent functional layer in organic elctroluminescent device with light-emitting function is formed in substrate 101
On, as shown in Figure 1.The thin layer of top layer is the second electrode lay 102 in the organic electroluminescent functional layer, is usually in the industry at present
Using vapor deposition etc. techniques form above-mentioned the second electrode lay 102, this meeting so that the second electrode lay 102 the position on slope film forming more
It is thin.Therefore, it is also easy to hold in reliability test etc. between substrate 101 and cover board (not shown) even if this electrode layer is encapsulated in
Occur in the case where by external force damaged.
Summary of the invention
In view of drawbacks described above in the prior art, the embodiment of the present application provides a kind of organic electro luminescent display panel and its system
Make method and the display device including the organic electroluminescent display panel, to solve the skill that background section above is mentioned
Art problem.
To achieve the goals above, in a first aspect, the embodiment of the present application provides a kind of organic electro luminescent display panel, packet
Include substrate；Organic electroluminescent functional layer on the substrate, wherein the organic electroluminescent functional layer includes opening
Area；Filled layer in the organic electroluminescent functional layer, wherein the opening is at least completely covered in the filled layer
Area；And the cover board on the filled layer.
Second aspect, the embodiment of the present application also provides a kind of display devices, aobvious including above-mentioned organic electroluminescent
Show panel.
The third aspect, the embodiment of the present application also provides a kind of production methods of organic electroluminescent display panel, comprising:
Organic electroluminescent functional layer is formed on substrate, wherein the organic electroluminescent functional layer includes open region；Have described
Filled layer is formed in organic electro luminescent functional layer, wherein the open region is at least completely covered in the filled layer；And described
Cover board is covered on filled layer.
Organic electroluminescent display panel provided by the embodiments of the present application and preparation method thereof, display device, including substrate,
Organic electroluminescent functional layer, cover board and filled layer, and the filled layer is located in organic electroluminescent functional layer, and extremely
The open region of organic electroluminescent functional layer is completely covered less, organic electroluminescence can be effectively protected in the filled layer in this structure
The organic electroluminescent functional layer of light emitting display panel avoids it from occurring breakage under the effect of external force.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, the application's is other
Feature, objects and advantages will become more apparent upon:
Fig. 1 shows the structural schematic diagram of organic electroluminescent display panel in the prior art；
Fig. 2 shows the structural schematic diagrams of the first embodiment of the organic electroluminescent display panel of the application；
Fig. 3 shows the structural schematic diagram of the second embodiment of the organic electroluminescent display panel of the application；
Fig. 4 A shows a kind of knot of implementation of the 3rd embodiment of the organic electroluminescent display panel of the application
Structure schematic diagram；
Fig. 4 B shows another implementation of the 3rd embodiment of the organic electroluminescent display panel of the application
Structural schematic diagram；
Fig. 5 shows the structural schematic diagram of the fourth embodiment of the organic electroluminescent display panel of the application；
Fig. 6 shows a kind of schematic stream of embodiment of the production method of the organic electroluminescent display panel of the application
Cheng Tu.
Specific embodiment
The principle of the application and feature are described in further detail with reference to the accompanying drawings and examples.It is understood that
It is that specific embodiment described herein is used only for explaining related invention, rather than the restriction to the invention.It further needs exist for
It is bright, part relevant to invention is illustrated only for ease of description, in attached drawing.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Referring to FIG. 2, its structural schematic diagram for the first embodiment of the organic electroluminescent display panel of the application, such as
Shown in figure, the organic electroluminescent display panel of the application includes: substrate 201, the organic electroluminescent function on substrate 201
Ergosphere, the filled layer 206 in organic electroluminescent functional layer, and the cover board 207 on filled layer 206.
In the present embodiment, above-mentioned organic electroluminescent functional layer includes open region, and filled layer 206 is at least completely covered out
Mouth region can form organic electroluminescent display panel as shown in Figure 2.Filling out in the organic electroluminescent display panel structure
Filling layer 206 can protect above-mentioned organic electroluminescent functional layer, in effect of the organic electroluminescent display panel by external force,
Above-mentioned filled layer 206 can bear extruding force, occur so as to avoid organic electroluminescent functional layer damaged.
In some optional implementations of the present embodiment, above-mentioned organic electroluminescent functional layer may include: first
Electrode layer 202, the barrier layer 205 in first electrode layer 202, wherein barrier layer 205 is formed with the upper of multiple array arrangements
Open region is stated, the organic luminous layer 203 in the open region in above-mentioned first electrode layer 202, and it is covered in barrier layer 205
With the second electrode lay 204 on organic luminous layer 203.Under normal conditions, when cover board 207 is by biggish external force, the second electricity
Pole layer 204 is squeezed it is possible that damaged, and the breakage of electrode layer will affect the work of organic electroluminescent display panel
Voltage etc., so that organic electroluminescent display panel blackspot occurs during display.It is above-mentioned to be located at organic electroluminescent function
Filled layer 206 on ergosphere can protect the second electrode lay 204 of top layer in the organic electroluminescent functional layer, avoid its because
The situation for electrode layer breakage occur is squeezed by external force.
In some optional implementations of the present embodiment, the distance between above-mentioned filled layer 206 and above-mentioned cover board 207
Zero can be greater than.When encapsulating above-mentioned organic electroluminescent display panel, above-mentioned cover board 207 can be made to connect with filled layer 206
Touching, i.e. the distance between filled layer 206 and cover board 207 are equal to zero, it is also possible that above-mentioned cover board 207 does not connect with filled layer 206
Touching, i.e. the distance between filled layer 206 and cover board 207 are greater than zero.It is big at a distance from above-mentioned cover board 207 is between filled layer 206
In the case where zero, if shock of the above-mentioned organic electroluminescent display panel by external force, cover board 207 and filled layer 206 it
Between gap can further reduce the pressure that the second electrode lay 204 in organic electroluminescent functional layer affords, avoid
Organic electroluminescent display panel is damaged.
Filled layer in some optional implementations of the present embodiment, in above-mentioned organic electroluminescent display panel
206 can only be completely covered the open region of organic electroluminescent functional layer.Further, the upper surface of above-mentioned filled layer 206 can
In the same plane with the upper surface with the second electrode lay 204 being located on barrier layer 205, as shown in Figure 2.Here filled layer
206 can fill and lead up the upper surface of organic electroluminescent functional layer, which can make ORGANIC ELECTROLUMINESCENCE DISPLAYS
The external force resistance of panel enhances.
In some optional implementations of the present embodiment, usual above-mentioned organic electroluminescent display panel is light from upper
The upper light emitting-type display panel of the sending of cover board 207 is stated, the above-mentioned needs of filled layer 206 do not influence ORGANIC ELECTROLUMINESCENCE DISPLAYS as far as possible
Illumination effect in panel, therefore the material for forming above-mentioned filled layer 206 needs light transmittance with higher.Here filling is formed
The material of layer can be greater than 80% inorganic matter of organic matter or light transmittance greater than 80%, such as titanyl compound for light transmittance
(TiOx), three-(8-hydroxyquinoline) aluminium (AlQ3) etc..It should be noted that if above-mentioned organic electroluminescent display panel be light from
The lower light emitting-type display panel that aforesaid substrate 201 issues, then the height of the light transmittance of above-mentioned filled layer 206 all will not influence organic
At this moment the illumination effect of electroluminescence display panel can not consider the light transmittance of above-mentioned filled layer 206.
In some optional implementations of the present embodiment, above-mentioned filling can be formed using following at least one mode
Layer 206: patterned manner and deposition are carried out after vapor deposition mode, inkjet printing mode, coating method, depositional mode, coating
Patterned manner is carried out later.
The structure of the organic electroluminescent display panel provided by the above embodiment of the application, by organic electroluminescent
The filled layer 206 that functional layer is formed, the second electrode lay 204 that can be effectively protected in organic electroluminescent display panel are kept away
Exempt from it and occurs breakage under the effect of external force.
It is the structural schematic diagram of the second embodiment of the organic electroluminescent display panel of the application with continued reference to Fig. 3.
The organic electroluminescent display panel of the present embodiment includes: substrate 301, the organic electroluminescent functional layer on substrate 301,
Filled layer 306 in organic electroluminescent functional layer, and the cover board 307 on filled layer 306.
In the present embodiment, above-mentioned organic electroluminescent functional layer may include: first electrode layer 302, be located at the first electricity
Barrier layer 305 on pole layer 302, the organic luminous layer 303 in the open region in above-mentioned first electrode layer 302, and cover
The second electrode lay 304 being placed on barrier layer 305 and organic luminous layer 303.
In the present embodiment, above-mentioned filled layer 306 can be covered on the second electrode lay 304 of open region, and
The upper surface of above-mentioned filled layer 306 is higher than the upper surface of the second electrode lay 304 on barrier layer 305, as shown in Figure 3.When the knot
When shock of the cover board 307 of the organic electroluminescent display panel of structure by external force, since above-mentioned filled layer 306 is higher than barrier layer
The upper surface of the second electrode lay 304 on 305, filled layer 306 can first bear external force, so as to protect the second electrode lay 304,
Achieve the effect that better external force resistance is hit.
It is respectively the 3rd embodiment of the organic electroluminescent display panel of the application with further reference to Fig. 4 A and 4B
The structural schematic diagram of two different implementations.The organic electroluminescent display panel of the present embodiment includes: substrate 401, position
In the organic electroluminescent functional layer on substrate 401, filled layer 4061 or 4062 in organic electroluminescent functional layer, with
And the cover board 407 on filled layer 4061 or 4062.
In the present embodiment, above-mentioned organic electroluminescent functional layer may include: first electrode layer 402, be located at the first electricity
Barrier layer 405 on pole layer 402, the organic luminous layer 403 in the open region in above-mentioned first electrode layer 402, and cover
The second electrode lay 404 being placed on barrier layer 405 and organic luminous layer 403.
In some optional implementations of the present embodiment, as shown in Figure 4 A, above-mentioned filled layer 4061 can cover completely
It is placed on a second electrode lay 404, it is further it is also possible that the upper surface of the filled layer 4061 formed is one and above-mentioned lid
The parallel plane of plate 407, as shown in Figure 4 A.It is located at filling out above open region in the organic electroluminescent display panel of such structure
It is different with the thickness of the filled layer 4061 above barrier layer 405 to fill layer 4061, the upper table of the filled layer 4061 finally obtained
Face be a flat surface parallel with above-mentioned cover board 407, when the structure organic electroluminescent display panel cover board 407 by
When the shock of external force, since the upper surface of above-mentioned filled layer 4061 is a flat surfaces parallel with cover board 407, it can protect
The second electrode lay 404 is protected, achievees the effect that better external force resistance is hit.
In some optional implementations of the present embodiment, above-mentioned filled layer 406 can be completely covered by second electrode
On layer 404, the upper surface of the filled layer 406 of further above-mentioned formation can also be parallel with the second electrode lay 404, such as Fig. 4 B institute
Show.It is located at the filled layer 4062 above open region in the organic electroluminescent display panel of such structure and is located at barrier layer 405
The thickness of the filled layer 4062 of top is identical, and the thickness of the filled layer 4062 can be set according to the actual needs,
The upper surface of the filled layer 4062 finally obtained is parallel with above-mentioned the second electrode lay 404, and the filled layer 4062 is by being completely covered
The second electrode lay 404 can be effectively protected the second electrode lay 404, achieve the effect that better external force resistance is hit.
Referring next to Fig. 5, the structure for the fourth embodiment of the organic electroluminescent display panel of the application is shown
It is intended to.The organic electroluminescent display panel of the present embodiment includes: substrate 501, the organic electroluminescent function on substrate 501
Ergosphere, the filled layer 506 in organic electroluminescent functional layer, and the cover board 507 on filled layer 506.
In the present embodiment, above-mentioned organic electroluminescent functional layer may include: first electrode layer 502, be located at the first electricity
Barrier layer 505 on pole layer 502, the organic luminous layer 503 in the open region in above-mentioned first electrode layer 502, and cover
The second electrode lay 504 being placed on barrier layer 505 and organic luminous layer 503.
In the present embodiment, above-mentioned filled layer 506 can include at least the first filling sublayer 5061 and the second filling sublayer
5062.Wherein, above-mentioned first filling sublayer 5061 is covered on the second electrode lay 504 of open region, above-mentioned second filling
Sublayer 5062 is covered in the upper table of the second electrode lay 504 on the upper surface and barrier layer 505 of above-mentioned first filling sublayer 5061
Face, as shown in Figure 5.The material of above-mentioned first filling sublayer 5061 and the second filling sublayer 5062 may be the same or different,
This can be selected according to different needs.The upper surface of the filled layer 506 of the structure is a flat plane, is had good
External force resistance effect, the risk of the damage of organic electroluminescent functional layer can be effectively reduced.
It should be noted that in addition to above-mentioned including two layers of sublayer 5062 filling of the first filling sublayer 5061 and the second filling
Outside the filled layer 506 of sublayer, naturally it is also possible to form two layers or more of filling sublayer structure, those skilled in the art can basis
The needs of practical application scene design the number of plies of filling sublayer and the structure of each layer, and which is not described herein again.
In some optional implementations of the present embodiment, above-mentioned organic electroluminescent display panel can be active square
Type organic electroluminescent display panel or passive matrix organic electroluminescent display panel.
Based on the above embodiments as can be seen that organic electroluminescent in the organic electroluminescent display panel of the application
Functional layer under the protective effect of filled layer, compared to the prior art in organic electroluminescent display panel, the effect of external force resistance
Fruit is more preferable, can reduce organic electroluminescent display panel and is risk of damage to.
The embodiment of the present application provides a kind of display device, including the organic electroluminescent display panel in above-described embodiment.
Correspondingly, display device here can be active matrix type organic electroluminescent display device, or passive matrix
Organic electroluminescence display device and method of manufacturing same, and in display device the specific structure of organic electroluminescent display panel and principle with it is above-mentioned
Embodiment is identical, and which is not described herein again.
Referring to FIG. 6, showing it illustrates a kind of embodiment of the production method of above-mentioned organic electroluminescent display panel
Meaning property flow chart.The production method of the organic electroluminescent display panel, includes the following steps:
Step 601, organic electroluminescent functional layer is formed on substrate.
In the present embodiment, the substrate in organic electroluminescent display panel can be determined first, and substrate here can be with
For glass, quartz or other different materials, if organic electroluminescent display panel is upper light emitting-type, substrate can be opaque
Material, otherwise substrate needs for translucent material.It can then be formed on aforesaid substrate using modes such as vapor depositions above-mentioned organic
Electroluminescent functional layer, organic electroluminescent functional layer here may include open region.
In some optional implementations of the present embodiment, having above-mentioned organic electroluminescent functional layer may include:
One electrode layer, the barrier layer in first electrode layer, wherein barrier layer is formed with the above-mentioned open region of multiple array arrangements,
Organic luminous layer in the open region in above-mentioned first electrode layer, and be covered on barrier layer and organic luminous layer
Two electrode layers.
Step 602, filled layer is formed in organic electroluminescent functional layer.
In the present embodiment, filled layer can be continuously formed in the organic electroluminescent functional layer of above-mentioned formation, wherein
Above-mentioned open region can be at least completely covered in filled layer.Here it is possible to using vapor deposition, inkjet printing, deposition, coating, deposition or
It the methods of is patterned again after coating and to form above-mentioned filled layer.
In some optional implementations of the present embodiment, the material for forming above-mentioned filled layer can be greater than for light transmittance
80% organic matter or light transmittance is greater than 80% inorganic matter.
In some optional implementations of the present embodiment, can in the open region of organic electroluminescent functional layer shape
At above-mentioned filled layer so that filled layer is covered on the second electrode lay of open region, the upper surface of filled layer here with
The upper surface of the second electrode lay on barrier layer can form organic electroluminescent as shown in Figure 2 in the same plane
Display panel.
In some optional implementations of the present embodiment, can in the open region of organic electroluminescent functional layer shape
At above-mentioned filled layer, so that filled layer is covered on the second electrode lay of open region, the upper surface of filled layer here can
Upper surface with the second electrode lay being higher than on barrier layer, forms organic electroluminescent display panel as shown in Figure 3.
In some optional implementations of the present embodiment, it can be formed in organic electroluminescent functional layer and be covered completely
The filled layer being placed on above-mentioned the second electrode lay, and the upper surface for being located at least in the filled layer of above-mentioned open region is higher than barrier layer
On the second electrode lay upper surface.Further, above-mentioned when above-mentioned filled layer is completely covered by the second electrode lay
The upper surface of filled layer can be a plane parallel with cover board, form organic electroluminescent display panel as shown in Figure 4 A,
Or the upper surface of above-mentioned filled layer can be parallel with the second electrode lay, forms ORGANIC ELECTROLUMINESCENCE DISPLAYS face as shown in Figure 4 B
Plate.
In some optional implementations of the present embodiment, above-mentioned filled layer can include at least first filling sublayer and
Second filling sublayer.Here it is possible to form the first filling sublayer first in the open region of organic electroluminescent functional layer, then
The upper surface of the second electrode lay on the upper surface and above-mentioned barrier layer of above-mentioned first filling sublayer forms above-mentioned second filling
Sublayer finally obtains organic electroluminescent display panel as shown in Figure 5.
In some optional implementations of the present embodiment, above-mentioned filled layer can be formed using evaporation process.First
The shape for determining filled layer is covered up the place for not needing vapor deposition with mask plate, then will be solid using evaporated device
Raw material decompose at high temperature, and preset position is then deposited.Here preset position can be organic
On the second electrode lay of the open region of electroluminescent functional layer, ORGANIC ELECTROLUMINESCENCE DISPLAYS face as shown in Figure 2 or Figure 3 is formed
Plate；Preset position can also be on the second electrode lay in organic electroluminescent functional layer, be formed such as Fig. 4 A or 4B institute
The organic electroluminescent display panel shown, or organic electroluminescent as shown in Figure 5 can also be formed by being deposited by different level
Display panel.
In some optional implementations of the present embodiment, above-mentioned filled layer can be formed using inkjet printing technology.
The ink suitable for inkjet printing is made in the material for being used to form filled layer first, then utilizes ink jet printing device by ink droplet
It is squeezed out from nozzle, so that ink droplet jet deposition forms required pattern to preset position.Here it can pass through meter
Calculation machine print software controls the movement of nozzle, accurately to realize the pattern of the filled layer in above-mentioned Fig. 2, Fig. 3, Fig. 4 A or 4B etc.
Shape.
In some optional implementations of the present embodiment, using simple process, coating at low cost or it can also sink
Long-pending method forms above-mentioned filled layer.It can choose the solution that light transmittance is greater than 80% when being coated with or depositing above-mentioned filled layer
(or colloid etc.) is raw material, is coated in preset position or deposits above-mentioned filled layer, directly forms such as Fig. 2, Fig. 3, figure
The organic electroluminescent display panel of 4A, Fig. 4 B or Fig. 5.
In some optional implementations of the present embodiment, in some cases, it is coated with or what deposition was directly formed fills out
Fill the precise requirements that layer may be unsatisfactory for filled layer, at this moment can using coating or deposition film forming share the same light quarter or etching (such as
Electron beam lithography) mode that combines of the film patterns technology such as technology, may finally be formed as Fig. 2, Fig. 3, Fig. 4 A, Fig. 4 B or
The organic electroluminescent display panel of Fig. 5.
Step 603, cover board is covered on filled layer.
In the present embodiment, after forming above-mentioned filled layer in organic electroluminescent functional layer based on step 602, Ke Yi
Cover board is covered on filled layer.The distance between the cover board and above-mentioned filled layer can be greater than zero, i.e., above-mentioned cover board and above-mentioned filling
Layer can not contact.
In some optional implementations of the present embodiment, above-mentioned cover board can also be in contact with above-mentioned filled layer, this
When other than it can form above-mentioned filled layer in above-mentioned organic electroluminescent functional layer, can also be formed on the cover board can be with
The filled layer to fasten with each open region then engages the cover board with filled layer with organic electroluminescent functional layer, is formed
Organic electroluminescent display panel.
In some optional implementations of the present embodiment, can using glass powder encapsulation technology encapsulation aforesaid substrate and
Cover board forms a closed cavity, protects the organic electroluminescent functional layer in organic electroluminescent display panel.It needs to illustrate
, here other than glass powder can be selected to encapsulate, it is also an option that shadowless glue encapsulation aforesaid substrate and cover board, be with
UV glue is alite paste, pastes aforesaid substrate and cover board, forms the sealing structure for surrounding above-mentioned organic electroluminescent functional layer.
In conclusion the production method of organic electroluminescent display panel provided by the present application can prepare above structure
Organic electroluminescent display panel can form the flat filled layer in a surface, in organic electroluminescent functional layer to reach
To preferable external force resistance effect, or can also at the open region of organic electroluminescent functional layer on formed and be higher than on barrier layer
The filled layer of the second electrode lay protect above-mentioned the second electrode lay for bearing external force.Therefore, the application above structure has
The organic electroluminescent of organic electroluminescent display panel can be effectively protected in filled layer in organic electro luminescent display panel
Functional layer avoids it from occurring breakage under the effect of external force.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.Those skilled in the art
Member is it should be appreciated that invention scope involved in the application, however it is not limited to technology made of the specific combination of above-mentioned technical characteristic
Scheme, while should also cover in the case where not departing from the inventive concept, it is carried out by above-mentioned technical characteristic or its equivalent feature
Any combination and the other technical solutions formed.Such as features described above has similar function with (but being not limited to) disclosed herein
Can technical characteristic replaced mutually and the technical solution that is formed.
Claims (10)
1. a kind of organic electroluminescent display panel characterized by comprising
Substrate；
Organic electroluminescent functional layer on the substrate, wherein the organic electroluminescent functional layer includes: the first electricity
Pole layer；Barrier layer in the first electrode layer, wherein the barrier layer is formed with the open region of multiple array arrangements；
Organic luminous layer in the open region in the first electrode layer；And it is covered in the barrier layer and described organic
The second electrode lay on luminescent layer；
Filled layer in the organic electroluminescent functional layer, wherein the open region is only completely covered in the filled layer；
And
Cover board on the filled layer；
The distance between the cover board and the filled layer are greater than zero；
The filled layer is covered on the second electrode lay of the open region, and the upper surface of the filled layer be located at
The upper surface of the second electrode lay on barrier layer is in the same plane；Or the filled layer is covered in positioned at the open region
On the second electrode lay, and the upper surface of the filled layer is higher than the upper surface of the second electrode lay on the barrier layer.
2. organic electroluminescent display panel according to claim 1, which is characterized in that using following at least one mode
It forms the filled layer: carrying out patterned manner after vapor deposition mode, inkjet printing mode, coating method, depositional mode, coating
And patterned manner is carried out after deposition.
3. organic electroluminescent display panel according to claim 1, which is characterized in that when the filled layer is covered in position
In on the second electrode lay of the open region, and the upper surface of the filled layer and the second electrode lay that is located on barrier layer
Upper surface in the same plane when, further include the second filling sublayer, it is described second filling sublayer is covered in the upper of the filled layer
The upper surface on surface and the second electrode lay on the barrier layer.
4. organic electroluminescent display panel described in one of -3 according to claim 1, which is characterized in that the material of the filled layer
Material is the inorganic matter that organic matter of the light transmittance greater than 80% or light transmittance are greater than 80%.
5. a kind of display device, which is characterized in that including the ORGANIC ELECTROLUMINESCENCE DISPLAYS face as described in one of claim 1-4
Plate.
6. a kind of production method of the organic electroluminescent display panel as described in claim 1-4 is any, which is characterized in that institute
The method of stating includes:
Organic electroluminescent functional layer is formed on substrate, wherein the organic electroluminescent functional layer includes open region；
Filled layer is formed in the organic electroluminescent functional layer, wherein the filled layer only covers the open region；And
Cover board is covered on the filled layer.
7. the production method of organic electroluminescent display panel according to claim 6, which is characterized in that described described
Filled layer is formed in organic electroluminescent functional layer, comprising:
It is deposited in the organic electroluminescent functional layer, forms the filled layer；Or
Inkjet printing is carried out in the organic electroluminescent functional layer, forms the filled layer.
8. the production method of organic electroluminescent display panel according to claim 6, which is characterized in that described described
Filled layer is formed in organic electroluminescent functional layer, further includes:
It is coated or deposits in the organic electroluminescent functional layer, form the filled layer.
9. the production method of organic electroluminescent display panel according to claim 8, which is characterized in that described described
Filled layer is formed in organic electroluminescent functional layer, further includes:
After being coated with or depositing the filled layer in the organic electroluminescent functional layer, then pattern is carried out to the filled layer
Change, so that the open region is completely covered in the patterned filled layer.
10. the production method of the organic electroluminescent display panel according to one of claim 6-9, which is characterized in that institute
State method further include:
The substrate and the cover board are encapsulated with glass powder, so that the organic electroluminescent display panel seals.
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| CN108448002A (en) * | 2018-04-09 | 2018-08-24 | 京东方科技集团股份有限公司 | A kind of OLED encapsulating structures and packaging method |
| CN111048567B (en) * | 2019-12-24 | 2022-07-19 | 固安翌光科技有限公司 | Organic photoelectric device |
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| CN102569669A (en) * | 2011-12-22 | 2012-07-11 | 友达光电股份有限公司 | Organic electroluminescent device |
| CN104377224A (en) * | 2013-08-14 | 2015-02-25 | 三星显示有限公司 | Organic light-emitting display apparatus and method of manufacturing the same |
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| CN102701591A (en) * | 2012-06-07 | 2012-10-03 | 上海大学 | Laser packaged glass powder sealing material for photoelectric device packaging |
| JP2014029814A (en) * | 2012-07-31 | 2014-02-13 | Sony Corp | Display device and electronic equipment |
| KR102360783B1 (en) * | 2014-09-16 | 2022-02-10 | 삼성디스플레이 주식회사 | display device |
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| CN102569669A (en) * | 2011-12-22 | 2012-07-11 | 友达光电股份有限公司 | Organic electroluminescent device |
| CN104377224A (en) * | 2013-08-14 | 2015-02-25 | 三星显示有限公司 | Organic light-emitting display apparatus and method of manufacturing the same |
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