CN106935723A - A kind of OLED and preparation method, display panel, drying and electric field generation device - Google Patents
A kind of OLED and preparation method, display panel, drying and electric field generation device Download PDFInfo
- Publication number
- CN106935723A CN106935723A CN201710298988.8A CN201710298988A CN106935723A CN 106935723 A CN106935723 A CN 106935723A CN 201710298988 A CN201710298988 A CN 201710298988A CN 106935723 A CN106935723 A CN 106935723A
- Authority
- CN
- China
- Prior art keywords
- layer
- substrate
- oled
- dried
- electric field
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
-
- 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
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/17—Carrier injection layers
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The embodiment of the present invention provides a kind of OLED and preparation method, display panel, drying and electric field generation device, is related to display field, the molecular orientation arrangement in the function implanted layer in the OLED, so as to improve the luminous efficiency of the OLED.The OLED is included in the anode and negative electrode being oppositely arranged on substrate, and between anode and negative electrode and the hole transmission layer, luminescent layer, the electron transfer layer that are set in turn on anode；OLED also includes function implanted layer, organic molecule in the function implanted layer oriented alignment on the direction that vertical or near normal this layer is sprawled；Function implanted layer is the hole injection layer between anode and hole transmission layer, and/or, the electron injecting layer between negative electrode and electron transfer layer.
Description
Technical field
The present invention relates to display field, more particularly to a kind of OLED and preparation method, display panel, drying and electric field
Generating means.
Background technology
Organic Light Emitting Diode (Organic Light Emitting Diode, abbreviation OLED) device because its have it is spontaneous
The advantages of light, frivolous, low in energy consumption, high-contrast, colour gamut high, achievable Flexible Displays, as focus of concern in recent years,
And the focus of people is also slowly from previous decades for the synthesis in new material, it is gradually converted into current to device junction
The innovation of structure.
Illustrate, as shown in figure 1, generally, OLED includes the anode and negative electrode that are oppositely arranged, and is located at
Multiple functional layers between anode and negative electrode, for example, the hole injection layer for setting gradually, hole transmission layer, organic luminous layer, electricity
Sub- transport layer, electron injecting layer.In traditional concept, it is believed that organic molecule must be in organic luminous layer in OLED
Unbodied, i.e., molecularly oriented is random and isotropic, so just can ensure that the homogeneity of the organic film, then really
Protect the performance of device.
But in the last few years, with the mankind to organic semi-conductor further investigate and to intermolecular interaction gradually
Pay attention to, people gradually have found that the form and specific orientation of organic molecule in organic luminous layer have significantly to the performance of OLED
Improve, for example, in the organic luminous layer molecule in the case of certain specific orientation, its mobility that can improve carrier or
Person strengthens light extraction efficiency, then improves the performances such as efficiency or life-span.Wherein, in the prior art for organic point in organic luminous layer
The specific orientation of son typically using in vacuum evaporation, tune is reached by the temperature or the specific solvent of selection of control base board
Save the purpose of the orientations of organic molecule.
The content of the invention
Embodiments of the invention provide a kind of OLED and preparation method, display panel, drying and electric field generation device,
Molecular orientation arrangement in function implanted layer in the OLED, so as to improve the luminous efficiency of the OLED.
To reach above-mentioned purpose, embodiments of the invention are adopted the following technical scheme that：
On the one hand the embodiment of the present invention provides a kind of OLED, is included in the anode and negative electrode being oppositely arranged on substrate,
And between the anode and the negative electrode and the hole transmission layer, luminescent layer, the electronics that are set in turn on the anode
Transport layer；The OLED also includes function implanted layer, and the organic molecule in the function implanted layer is vertical or approximate
Oriented alignment on the direction that vertical this layer is sprawled；The function implanted layer is between the anode and the hole transmission layer
Hole injection layer, and/or, the electron injecting layer between the negative electrode and the electron transfer layer.
On the other hand the embodiment of the present invention also provides a kind of OLED display panel, it is characterised in that above-mentioned OLED.
The another aspect of the embodiment of the present invention also provides a kind of preparation method of OLED, including：Formed on substrate according to
The step of anode, hole transmission layer, luminescent layer, electron transfer layer, negative electrode of secondary arrangement, the preparation method also includes：In base
Function implanted layer to be dried is formed on plate, the function implanted layer to be dried is to include the film layer of solvent composition；To being formed
The substrate for having the function implanted layer to be dried applies the electric field perpendicular to the substrate, and carries out dried process, to form work(
Energy implanted layer, the function implanted layer is the hole injection layer between the anode and the hole transmission layer, and/or,
The electron injecting layer between the negative electrode and the electron transfer layer.
Further, electricity of the described pair of substrate applying for being formed with the function implanted layer to be dried perpendicular to the substrate
, and dried process is carried out, it is to form function implanted layer：Substrate to being formed with the function implanted layer to be dried is advanced
Row drying, and in drying process, vertical electric field is applied to the substrate, to form function implanted layer.
Further, described in drying process is carried out, applying vertical electric field to the substrate includes：Treated to described in drying
When the mass fraction of solvent reaches 10%~20% in dry function implanted layer, vertical electric field is applied to the substrate.
Further, electricity of the described pair of substrate applying for being formed with the function implanted layer to be dried perpendicular to the substrate
, and dried process is carried out, it is to form function implanted layer：To be formed with the function implanted layer to be dried substrate simultaneously
Vertical electric field is dried and applies, to form function implanted layer.
Further, it is described function implanted layer to be dried is formed on substrate to be：Using inkjet printing or spin coating
Method is formed on substrate includes the function implanted layer to be dried of Elements in Organic Solvents.
The another aspect of the embodiment of the present invention also provide it is a kind of dry and electric field generation device, including power supply, substrate rack,
Air extractor and the pumping chamber being connected with the air extractor；Wherein, the bottom surface of the pumping chamber is main by metal material shape
Into, and the bottom surface is provided with multiple through holes；The substrate rack is used for bearing substrate, so that the substrate is located at described taking out
The lower section of air cavity, and be arranged in parallel with the bottom surface of the pumping chamber；The both positive and negative polarity of the power supply connects the pumping chamber respectively
First electrode in the OLED that bottom surface and the substrate rack are carried, wherein, the first electrode is the OLED
In negative electrode and anode near substrate side electrode；Or, the drying and electric field generation device also include：Positioned at described
The loading end of substrate rack is away from the bottom surface side of the pumping chamber and additional with what the bottom surface of the pumping chamber be arranged in parallel
Electrode；The both positive and negative polarity of the power supply connects the bottom surface of the pumping chamber and the supplementary electrode respectively.
Further, the electric field for being formed between the bottom surface of the first electrode or the supplementary electrode and the pumping chamber
Direction, it is identical with the direction of an electric field between anode and negative electrode in the OLED.
Further, the distribution density of the multiple through hole reduces from the centre position of the bottom surface to marginal position；With/
Or, the distance between first electrode is less than or waits in the OLED that is carried with the substrate rack of the bottom surface of the pumping chamber
In 10mm.
The embodiment of the present invention provides a kind of OLED and preparation method, display panel, drying and electric field generation device, should
OLED includes：The anode and negative electrode being oppositely arranged on substrate are included in, and are set between anode and negative electrode and successively
Hole transmission layer, luminescent layer, the electron transfer layer being placed on anode；The OLED also includes function implanted layer, and the function
Organic molecule in the implanted layer oriented alignment on the direction that vertical or near normal this layer is sprawled；Function implanted layer be positioned at
Hole injection layer between anode and hole transmission layer, and/or, the electron injecting layer between negative electrode and electron transfer layer.By
Organic molecule is sprawled in vertical or near normal this layer in hole injection layer and/or electron injecting layer in the OLED
Oriented alignment on direction such that it is able to improve the mobility of carrier, and then improve the luminous efficiency of the OLED.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of the OLED for providing in the prior art；
Fig. 2 is a kind of structural representation of OLED provided in an embodiment of the present invention；
Fig. 3 is the structural representation of another OLED provided in an embodiment of the present invention；
Fig. 4 is a kind of part schematic flow sheet of the preparation method of OLED provided in an embodiment of the present invention；
Fig. 5 is provided in an embodiment of the present invention a kind of to prepare one of structural representation of OLED；
Fig. 6 is provided in an embodiment of the present invention a kind of to prepare one of structural representation of OLED；
Fig. 7 is the structural representation of a kind of drying provided in an embodiment of the present invention and electric field generation device；
Fig. 8 is the structural representation of another dry and electric field generation device provided in an embodiment of the present invention.
Reference：
01-OLED devices；10- substrates；101- anodes；102- negative electrodes；02- is dried and electric field generation device；21- power supplys；
22- substrate racks；23- air extractors；24- pumping chambers；The bottom surface of 241- pumping chambers；2411- through holes；25- supplementary electrodes.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
The embodiment of the present invention provides a kind of OLED, as shown in Fig. 2 the OLED 01 is including relative on the substrate 10
The anode 101 and negative electrode 102 of setting, and between anode 101 and negative electrode 102 and the sky that is set in turn on anode 101
Cave transport layer (Hole Transportation Layer, HTL), luminescent layer (Emission Layer, EML), electron transfer layer
(Electron Transportation Layer, ETL).
As shown in Fig. 2 the OLED also includes function implanted layer, the function implanted layer is positioned at anode 101 and hole
Hole injection layer (Hole Injection Layer, HIL) between transport layer HTL, and/or, passed positioned at negative electrode 102 and electronics
Electron injecting layer (Electron Injection Layer, EIL) between defeated layer ETL；And the function implanted layer, namely hole
Implanted layer HIL, and/or, organic molecule is upwardly-directed in the side that vertical or near normal this layer is sprawled in electron injecting layer EIL
Arrangement such that it is able to improve the mobility of carrier, and then improve the luminous efficiency of the OLED.
Herein it should be noted that above-mentioned hole injection layer HIL, and/or, organic molecule is hanging down in electron injecting layer EIL
Oriented alignment refers on the direction that straight or near normal this layer is sprawled：
Can be with as shown in Fig. 2 including cave two functions of implanted layer HIL and electron injecting layer EIL simultaneously in the OLED
In the case of implanted layer, then in two function implanted layers at least one functional layer organic molecule in vertical or near normal
Oriented alignment on the direction that this layer is sprawled, naturally it is also possible to be organic molecule in two function implanted layers vertical or
Oriented alignment on the direction that near normal this layer is sprawled.
It is also possible that the One function note in the OLED only includes hole injection layer HIL and electron injecting layer EIL
In the case of entering layer, for example, shown in Fig. 3, when only including hole injection layer HIL, then organic molecule is hanging down in the function implanted layer
Oriented alignment on the direction that straight or near normal this layer is sprawled.
Certainly, this area technology it is to be understood that in existing OLED mostly include hole injection layer HIL, and
Electron injecting layer EIL can according to the actual needs carry out selection setting, in the present invention, be injected including hole in the OLED
In the case of layer HIL, at least ensure the direction that organic molecule in hole injection layer HIL is sprawled in vertical or near normal this layer
Upper oriented alignment.
Herein also, it should be noted that normal luminous in order to ensure OLED, general, it should be ensured that above-mentioned anode
At least one of 101 and negative electrode 102 are made of transparent conductive material, for example, ITO (Indium Tin Oxide) is transparent leading
Electric material.
The embodiment of the present invention also provides a kind of OLED display panel, including above-mentioned OLED, specifically, the OLED is aobvious
Show that panel is generally comprised on TFT (Thin Film Transistor, thin film transistor (TFT)) substrate, and setting and the TFT substrate
And the above-mentioned OLED of array arrangement.Due to the OLED display panel include OLED as described above, therefore with
OLED identical structure and beneficial effect that previous embodiment is provided.Because previous embodiment is to the knot of OLED
Structure and beneficial effect are described in detail, and here is omitted.
Herein it should be noted that above-mentioned OLED display panel can be the OLED array before being packaged,
It can be the oled display substrate after encapsulation.
The embodiment of the present invention also provides a kind of preparation method of OLED, including：Formed on the substrate 10 and arranged successively
Anode 101, hole transmission layer HTL, luminescent layer EML, electron transfer layer ETL, negative electrode 102 the step of (refer to Fig. 2), wherein,
The anode 101 arranged successively, hole transmission layer HTL, luminescent layer EML, electron transfer layer ETL, negative electrode 102 can be from top to bottom
Arrange successively, or arrange successively from top to bottom, the invention is not limited in this regard.
As shown in figure 4, the preparation method also includes：
Step 101, function implanted layer to be dried is formed on substrate, wherein, function implanted layer to be dried is to include
The film layer of solvent composition.
Specifically, can be using inkjet printing (Ink-Jet Printing) or the method for spin coating (Spin-Coating)
Being formed on substrate 10 (including electrode) includes the function implanted layer to be dried of Elements in Organic Solvents.
Step 102, the substrate to being formed with function implanted layer to be dried apply the electric field perpendicular to the substrate, and carry out
Dried process, to form function implanted layer.Wherein, function implanted layer is the sky between anode 101 and hole transmission layer HTL
Cave implanted layer HIL, and/or, the electron injecting layer EIL between negative electrode 102 and electron transfer layer ETL.
In sum, hole injection layer in the OLED, and/or, the dipole of polar organic molecule in electron injecting layer
Square is rearranged under electric field action, along direction of an electric field arrangement from beginning to end, i.e., in the vertical or near normal layer
There is oriented alignment on the direction sprawled such that it is able to improve the mobility of the carrier of the OLED, and then improve luminous
Efficiency.
Below to above-mentioned steps S102 in, to be formed with function implanted layer to be dried substrate apply perpendicular to the substrate
Electric field, and carry out dried process, be further explained explanation to form function implanted layer.
For example, it may be to being formed with the substrate of function implanted layer to be dried while being dried and applying vertical electricity
, to form function implanted layer；Namely to being formed with the substrate of function implanted layer to be dried during the entire process of drying
Apply vertical electric field.
Again for example, it is also possible to be that the substrate for being formed with function implanted layer to be dried is first dried, and dried
In Cheng Jinhang, vertical electric field is applied to the substrate, to form function implanted layer；I.e. drying process and apply electric field and it is asynchronous enter
OK, after certain hour is dried, start to apply vertical electric field to substrate.
On this basis, in order to avoid because drying time it is more long, cause the solvent in function implanted layer to be dried a large amount of
Volatilization, causes that the organic molecule concentration in the function implanted layer to be dried is excessive, causes a certain degree of non-directional to arrange, and
And effective oriented alignment cannot be carried out in the presence of electric field, therefore, it is currently preferred, drying to function to be dried
When the mass fraction of solvent reaches 10%~20% in implanted layer, such as 15%, vertical electric field is applied to the substrate.
, wherein it is desired to explanation, the mass fraction of solvent reaches in above-mentioned drying to function implanted layer to be dried
10%~20% refers to, when drying to a certain moment, solvent accounts for the moment whole film layer in function implanted layer to be dried
Mass fraction.In actual drying process, the sliminess of the function implanted layer to be dried can be rule of thumb observed, with
Judge the mass fraction of solvent in the function implanted layer to be dried；Can certainly be by waving of determining that drying device is collected into
The solvent quality of hair estimates the function implanted layer to be dried to calculate the remaining solvent of function implanted layer to be dried
The mass fraction of middle solvent.
As a example by making OLED display panel, by specific embodiment, the preparation method to above-mentioned OLED is done into one
The explanation of step.
Specifically, the manufacturing process of OLED display panel, the substrate in above-mentioned OLED is TFT substrate (TFT
Array)。
First, as shown in figure 5, forming the first electrode of array arrangement in TFT substrate 10, for example, it may be ITO materials
The anode 101 of formation, is not restricted to this certainly；Next pixel defining layer is formed on the substrate 10 of the formation anode 101,
Kept apart with causing the anode 101 of array arrangement to be defined by the barrier wall (Bank) in pixel defining layer.
Then, as shown in fig. 6, using inkjet printing on the substrate 10 of the formation anode 101 and pixel defining layer
Method forms hole injection layer HIL to be dried, now the hole injection layer HIL to be dried have substantial amounts of organic solvent into
Point.
Next, treat dry hole injection layer HIL and be dried and apply vertical electric field E, to form organic molecule
The hole injection layer HIL of oriented alignment on the direction that vertical or near normal this layer is sprawled.
The embodiment of the present invention also provide it is a kind of dry and electric field generation device, as shown in Fig. 7 or Fig. 8, the drying and electric field
Generating means 02, including power supply 21, substrate rack 22, air extractor 23 and the pumping chamber 24 that is connected with air extractor 23.
The bottom surface 241 of pumping chamber is mainly formed by metal material, and the bottom surface 241 of the pumping chamber is provided with multiple through holes
2411.General, the pumping chamber 24 is up-small and down-big taper bell cover structure, causes to be located at pumping by opening air extractor 23
Solvent on the substrate of the lower section of bottom surface 241 in chamber 24 can quickly be volatilized by pumping chamber 24, to reach dry purpose.
Substrate rack 22 be used for bearing substrate 10, so as to substrate 10 be located at pumping chamber 24 lower section, and with pumping chamber 24
Bottom surface 241 be arranged in parallel.
In the case, there is part for electric field：
Can be with as shown in fig. 7, the both positive and negative polarity of power supply 21 connects the bottom surface 241 of pumping chamber respectively and substrate rack 22 is carried
OLED in first electrode, wherein, first electrode is near the side of substrate 10 in negative electrode and anode in OLED 01
Electrode, for example, can be anode 101, so, can between bottom surface 241 of the anode 101 with pumping chamber formation it is vertical
In the electric field of substrate 10, to cause that the hole injection layer HIL on anode 101 is located in the vertical electric field.
Can also be as shown in figure 8, the drying and electric field generation device 02 also include：Positioned at the loading end of substrate rack 22
Away from the side of bottom surface 241 of pumping chamber and the supplementary electrode 25 that is be arranged in parallel with the bottom surface 241 of pumping chamber；Power supply 21 it is positive and negative
Pole connects bottom surface 241 and the supplementary electrode 25 of pumping chamber respectively, so, can be in the bottom surface 241 of pumping chamber and additional electrical
The electric field perpendicular to substrate 10 is formed between pole 25.
Herein it should be noted that the connection of the both positive and negative polarity for above-mentioned power supply 21, in practice can be by above-mentioned electricity
The both positive and negative polarity in source 21 exchanges mutually connection, as long as ensureing the bottom surface 241 of above-mentioned first electrode or supplementary electrode 25 and pumping chamber
Between formed vertical electric field.
However, in order to ensure in drying process as far as possible, the direction of an electric field residing for function implanted layer to be dried, with
OLED direction of an electric field in normal operation residing for function implanted layer is consistent, to cause what is formed in drying process
The molecular arrangement trend of function implanted layer, has identical arrangement trend with the molecule of function implanted layer is descended in working order, enters
And ensure the function implanted layer stability.Therefore, it is currently preferred, above-mentioned first electrode or supplementary electrode 25 and pumping chamber
Bottom surface 241 between formed direction of an electric field, it is identical with the direction of an electric field between the anode in OLED and negative electrode.
Specifically, with the first electrode on substrate 10 be anode 101, and be formed with the substrate of anode 101 formed treat
As a example by dry function implanted layer (hole injection layer HIL), can with as shown in fig. 7, the positive pole of power supply 21 is connected with anode 101,
Negative pole is connected with the bottom surface 214 of pumping chamber；Or, as shown in figure 8, the positive pole of power supply 21 is connected with supplementary electrode 25, negative pole with
The bottom surface 214 of pumping chamber connects；So, the electric field formed between the bottom surface 241 of first electrode and pumping chamber is enabled to
Direction, it is identical with the direction of an electric field between the anode in OLED and negative electrode, to ensure the stability of the OLED.
In addition, it should be appreciated by those skilled in the art arriving, during drying and applying electric field, substrate rack 22
Substrate 10 in the OLED of carrying is directly contacted with substrate rack 22, and other film layers direction for making on the substrate 10 should
Dry and electric field generation device 02.
In addition, currently preferred, the distribution density of multiple through holes 2411 of the above-mentioned bottom surface 241 positioned at pumping chamber is the bottom of from
The centre position in face reduces to marginal position, during causing to be dried the substrate for being formed with function implanted layer to be dried,
Ensure that whole function implanted layer to be dried is uniformly dried.
Specifically, because the environment at function implanted layer middle position to be dried and marginal position has difference, i.e.,
Centre position is in solvent volatilization process the solvent effect by surrounding, and degree of volatility is difficult to the solvent volatilization at marginal position
Degree, therefore, the distribution density for setting the through hole in the bottom surface of pumping chamber reduces from the centre position of bottom surface to marginal position, with
Enable that function implanted layer to be dried is uniformly dried.
Herein it should be noted that the distribution density of above-mentioned through hole refers to, in the case where the size shape of through hole is consistent,
The distribution number of unit area inner via hole.
Additionally, currently preferred, the first electricity in the OLED of the bottom surface 241 of pumping chamber and substrate rack carrying 22
The distance between pole is less than or equal to 10mm, for example, the bottom surface 241 of setting pumping chamber and substrate rack can be made to carry 22
The distance between first electrode is 1mm in OLED；So, on the one hand ensure that effective volatilization of solvent；It is another
Aspect, the in the both positive and negative polarity of power supply 21 connects the OLED that the bottom surface 241 of pumping chamber and substrate rack 22 are carried respectively
One electrode, and in the case that power is certain, ensure that the function implanted layer to be dried in first electrode can
In stronger electric field, to cause that organic molecule is effectively aligned along direction of an electric field.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of above method embodiment can pass through
Programmed instruction related hardware is completed, and foregoing program can be stored in a computer read/write memory medium, the program
Upon execution, the step of including above method embodiment is performed；And foregoing storage medium includes：ROM, RAM, magnetic disc or light
Disk etc. is various can be with the medium of store program codes.
The above, specific embodiment only of the invention, but protection scope of the present invention is not limited thereto, and it is any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of OLED, it is characterised in that be included in the anode and negative electrode being oppositely arranged on substrate, and positioned at the sun
Between pole and the negative electrode and the hole transmission layer, luminescent layer, the electron transfer layer that are set in turn on the anode；
The OLED also includes function implanted layer, and the organic molecule in the function implanted layer is in vertical or near normal
Oriented alignment on the direction that this layer is sprawled；
The function implanted layer is the hole injection layer between the anode and the hole transmission layer, and/or, positioned at institute
State electron injecting layer between negative electrode and the electron transfer layer.
2. a kind of OLED display panel, it is characterised in that including the OLED described in claim 1.
3. a kind of preparation method of OLED, including：The anode, hole transmission layer, luminous arranged successively is formed on substrate
The step of layer, electron transfer layer, negative electrode, it is characterised in that the preparation method also includes：
Function implanted layer to be dried is formed on substrate, the function implanted layer to be dried is to include the film of solvent composition
Layer；
Substrate to being formed with the function implanted layer to be dried applies the electric field perpendicular to the substrate, and is dried place
Reason, to form function implanted layer, the function implanted layer is the hole note between the anode and the hole transmission layer
Enter layer, and/or, the electron injecting layer between the negative electrode and the electron transfer layer.
4. preparation method according to claim 3, it is characterised in that described pair is formed with the function injection to be dried
The substrate of layer applies the electric field perpendicular to the substrate, and carries out dried process, is to form function implanted layer：
Substrate to being formed with the function implanted layer to be dried is first dried, and in drying process is carried out, to the base
Plate applies vertical electric field, to form function implanted layer.
5. preparation method according to claim 4, it is characterised in that described in drying process, applies to hang down to the substrate
Straight electric field includes：It is right when the dry mass fraction to solvent in the function implanted layer to be dried reaches 10%~20%
The substrate applies vertical electric field.
6. preparation method according to claim 3, it is characterised in that described pair is formed with the function injection to be dried
The substrate of layer applies the electric field perpendicular to the substrate, and carries out dried process, is to form function implanted layer：
To being formed with the substrate of the function implanted layer to be dried while being dried and applying vertical electric field, to form function
Implanted layer.
7. the preparation method according to claim any one of 3-6, it is characterised in that described to form to be dried on substrate
Function implanted layer is：
Being formed on substrate using inkjet printing or the method for spin coating includes the function injection to be dried of Elements in Organic Solvents
Layer.
8. a kind of drying of preparation method for being applied to the OLED described in claim any one of 3-7 and electric field are filled
Put, it is characterised in that including power supply, substrate rack, air extractor and the pumping chamber being connected with the air extractor；Its
In, the bottom surface of the pumping chamber is mainly formed by metal material, and the bottom surface is provided with multiple through holes；The substrate rack
For bearing substrate, the lower section of the pumping chamber is located at so as to the substrate, and be arranged in parallel with the bottom surface of the pumping chamber；
The both positive and negative polarity of the power supply is connected in the OLED that the bottom surface of the pumping chamber and the substrate rack are carried respectively
First electrode, wherein, the first electrode is the electrode of close substrate side in negative electrode and anode in the OLED；
Or, the drying and electric field generation device also include：Loading end positioned at the substrate rack deviates from the pumping
The bottom surface side in chamber and the supplementary electrode being be arranged in parallel with the bottom surface of the pumping chamber；The both positive and negative polarity of the power supply is connected respectively
The bottom surface of the pumping chamber and the supplementary electrode.
9. drying according to claim 8 and electric field generation device, it is characterised in that the first electrode is described attached
Between anode and negative electrode in the direction of an electric field formed between power-up pole and the bottom surface of the pumping chamber, with the OLED
Direction of an electric field is identical.
10. drying according to claim 8 and electric field generation device, it is characterised in that the distribution of the multiple through hole is close
Degree reduces from the centre position of the bottom surface to marginal position；And/or,
In the OLED that the bottom surface of the pumping chamber carries with the substrate rack the distance between first electrode be less than or
Equal to 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710298988.8A CN106935723B (en) | 2017-04-28 | 2017-04-28 | A kind of OLED device and preparation method, display panel, drying and electric field generation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710298988.8A CN106935723B (en) | 2017-04-28 | 2017-04-28 | A kind of OLED device and preparation method, display panel, drying and electric field generation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106935723A true CN106935723A (en) | 2017-07-07 |
| CN106935723B CN106935723B (en) | 2018-09-11 |
Family
ID=59429369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710298988.8A Active CN106935723B (en) | 2017-04-28 | 2017-04-28 | A kind of OLED device and preparation method, display panel, drying and electric field generation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106935723B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107623021A (en) * | 2017-09-28 | 2018-01-23 | 深圳市华星光电半导体显示技术有限公司 | The preparation method and OLED display of OLED display |
| CN107732021A (en) * | 2017-11-23 | 2018-02-23 | 京东方科技集团股份有限公司 | A kind of organic electroluminescence device and preparation method thereof and display device |
| CN108215490A (en) * | 2017-12-29 | 2018-06-29 | 深圳市华星光电技术有限公司 | The drying device and ink jet printing device of a kind of oled substrate |
| CN110504389A (en) * | 2019-08-14 | 2019-11-26 | 昆山国显光电有限公司 | A kind of preparation method of luminescent device, luminescent device and display panel |
| CN113410419A (en) * | 2021-08-18 | 2021-09-17 | 深圳市华星光电半导体显示技术有限公司 | Manufacturing method of display panel and drying equipment |
| CN113471396A (en) * | 2021-07-02 | 2021-10-01 | 合肥福纳科技有限公司 | Electroluminescent device, light-emitting diode, and preparation method and application of thin film |
| JP2023541725A (en) * | 2021-08-18 | 2023-10-04 | 深▲セン▼市▲華▼星光▲電▼半▲導▼体▲顕▼示技▲術▼有限公司 | Display panel manufacturing method and drying equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101436647A (en) * | 2008-12-23 | 2009-05-20 | 北京交通大学 | Vacuumeultraviolet electroluminescent device with ZnO nanometer stick/organic luminescent material composite layer |
| CN102760838A (en) * | 2012-07-27 | 2012-10-31 | 深圳市华星光电技术有限公司 | Organic light-emitting device (OLED) |
| CN103000820A (en) * | 2011-09-16 | 2013-03-27 | 株式会社东芝 | Organic electroluminescent device, display and lighting instrument |
-
2017
- 2017-04-28 CN CN201710298988.8A patent/CN106935723B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101436647A (en) * | 2008-12-23 | 2009-05-20 | 北京交通大学 | Vacuumeultraviolet electroluminescent device with ZnO nanometer stick/organic luminescent material composite layer |
| CN103000820A (en) * | 2011-09-16 | 2013-03-27 | 株式会社东芝 | Organic electroluminescent device, display and lighting instrument |
| CN102760838A (en) * | 2012-07-27 | 2012-10-31 | 深圳市华星光电技术有限公司 | Organic light-emitting device (OLED) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107623021A (en) * | 2017-09-28 | 2018-01-23 | 深圳市华星光电半导体显示技术有限公司 | The preparation method and OLED display of OLED display |
| CN107732021A (en) * | 2017-11-23 | 2018-02-23 | 京东方科技集团股份有限公司 | A kind of organic electroluminescence device and preparation method thereof and display device |
| CN107732021B (en) * | 2017-11-23 | 2019-09-03 | 京东方科技集团股份有限公司 | A kind of organic electroluminescence device and preparation method thereof and display device |
| CN108215490A (en) * | 2017-12-29 | 2018-06-29 | 深圳市华星光电技术有限公司 | The drying device and ink jet printing device of a kind of oled substrate |
| CN108215490B (en) * | 2017-12-29 | 2019-08-02 | 深圳市华星光电技术有限公司 | A kind of drying device and ink jet printing device of oled substrate |
| CN110504389A (en) * | 2019-08-14 | 2019-11-26 | 昆山国显光电有限公司 | A kind of preparation method of luminescent device, luminescent device and display panel |
| CN110504389B (en) * | 2019-08-14 | 2022-07-05 | 昆山国显光电有限公司 | Preparation method of light-emitting device, light-emitting device and display panel |
| CN113471396A (en) * | 2021-07-02 | 2021-10-01 | 合肥福纳科技有限公司 | Electroluminescent device, light-emitting diode, and preparation method and application of thin film |
| CN113410419A (en) * | 2021-08-18 | 2021-09-17 | 深圳市华星光电半导体显示技术有限公司 | Manufacturing method of display panel and drying equipment |
| WO2023019635A1 (en) * | 2021-08-18 | 2023-02-23 | 深圳市华星光电半导体显示技术有限公司 | Manufacturing method for display panel and drying device |
| JP2023541725A (en) * | 2021-08-18 | 2023-10-04 | 深▲セン▼市▲華▼星光▲電▼半▲導▼体▲顕▼示技▲術▼有限公司 | Display panel manufacturing method and drying equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106935723B (en) | 2018-09-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106935723B (en) | A kind of OLED device and preparation method, display panel, drying and electric field generation device | |
| CN107623076B (en) | full-solution OLED device and manufacturing method thereof | |
| US10781326B2 (en) | Ink-jet printing ink of an electron transport layer and its manufacturing method | |
| CN107331788A (en) | The preparation method of OLED, OLED display and OLED | |
| Zhuang et al. | Highly efficient phosphorescent organic light-emitting diodes using a homoleptic iridium (III) complex as a sky-blue dopant | |
| CN106340533B (en) | OLED display panel and preparation method thereof | |
| WO2018113006A1 (en) | Method for manufacturing flexible oled display panel | |
| CN106960922B (en) | Inkjet printing film build method | |
| CN108389979A (en) | A kind of electroluminescence display panel, preparation method and display device | |
| CN107623021B (en) | OLED display manufacturing method and OLED display | |
| Islam et al. | A review on fabrication process of organic light emitting diodes | |
| CN104947041B (en) | It is a kind of that crucible and the evaporation coating device of OLED material is deposited | |
| Ràfols‐Ribé et al. | Controlling the Emission Zone by Additives for Improved Light‐Emitting Electrochemical Cells | |
| TW202332096A (en) | Organic light-emitting diode (oled) display devices with uv-cured filler and manufacturing method thereof | |
| CN105826483A (en) | Quantum dot light-emitting diode and preparation method thereof | |
| CN105378139B (en) | The manufacture method of evaporation coating device, evaporation coating method and organic electroluminescent device | |
| CN108511631A (en) | OLED display panel and its manufacturing method, display device | |
| KR102016465B1 (en) | Method for Manufacturing of Organic light Emitting Display Device | |
| CN106340594A (en) | White-light organic electroluminescent device and preparation method thereof | |
| CN107086272A (en) | Preparation method, OLED and the OLED display panel of OLED | |
| CN107346776A (en) | Typographical display device and preparation method thereof and application | |
| CN107946484B (en) | A kind of white light organic electroluminescent device and preparation method thereof | |
| Sun et al. | The width of exciton formation zone dominates the performance of phosphorescent organic light emitting diodes | |
| CN105895824B (en) | One kind modification indium-tin oxide anode | |
| TW201012293A (en) | Organic light-emitting diode and method of fabricating the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |