CN101452997A - Organic electroluminescent devices of laminated construction - Google Patents

Organic electroluminescent devices of laminated construction Download PDF

Info

Publication number
CN101452997A
CN101452997A CNA2008102468311A CN200810246831A CN101452997A CN 101452997 A CN101452997 A CN 101452997A CN A2008102468311 A CNA2008102468311 A CN A2008102468311A CN 200810246831 A CN200810246831 A CN 200810246831A CN 101452997 A CN101452997 A CN 101452997A
Authority
CN
China
Prior art keywords
lithium
organic electroluminescence
alkali
electroluminescence device
compound
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
Application number
CNA2008102468311A
Other languages
Chinese (zh)
Other versions
CN101452997B (en
Inventor
邱勇
张国辉
段炼
李银奎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tsinghua University
Beijing Visionox Technology Co Ltd
Kunshan Visionox Display Co Ltd
Original Assignee
Tsinghua University
Beijing Visionox Technology Co Ltd
Kunshan Visionox Display Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tsinghua University, Beijing Visionox Technology Co Ltd, Kunshan Visionox Display Co Ltd filed Critical Tsinghua University
Priority to CN2008102468311A priority Critical patent/CN101452997B/en
Publication of CN101452997A publication Critical patent/CN101452997A/en
Application granted granted Critical
Publication of CN101452997B publication Critical patent/CN101452997B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The invention discloses a laminated organic electroluminescent device, which comprises a pair of electrodes and an organic luminescent medium arranged between the electrodes. The organic luminescent medium comprises at least two luminescent units. A connection layer is arranged between the luminescent units. The connection layer comprises at least one selected from compounds in the general formula I or II, wherein Ar is mid-condensed-nuclei aromatics of which the number of carbon atoms is selected from 6 to 30, or mid-fused-heterocycle aromatics of which the number of carbon atoms is selected from 6 to 30; n is an integer selected from 2 to 4; and alkali metal materials or alkali metal compounds are simultaneously doped. The device connects two or more than two luminescent units together so as to play a role as a charge generation layer. The device with N laminated luminescent units is N times the current efficiency of a single luminescent-layer device, and gains certain improvement of power efficiency as well. In addition, compared with the prior laminated device, the connection-layer material selected by the electroluminescent device has the advantages of lower film-forming temperature and relatively simple preparation process.

Description

A kind of organic electroluminescent devices of laminated construction
Technical field
The present invention relates to a kind of novel electroluminescent device, especially adopted the organic electroluminescent devices of laminated construction of new material preparation.
Background technology
Advantages such as organic electroluminescence device is thin with its body, area is big, full curing, flexibility have caused people's extensive concern, are showing that with lighting field important application is arranged.
In order to obtain high current efficiency, people have designed the mode that two luminescence unit stacks are realized, as people Japaneses Journal of applied phys ics such as Adachi, 27, L269 (1988) and ISSN/007-0966X/07/3801-0871-2007SID, ISSN/007-0966X/07/3801-0089-2007SID) etc.With reference to Fig. 1, laminated device mainly is by articulamentum, and adjacent two or more luminescent devices are linked together.This articulamentum simultaneously can also be as charge generating layers, and the performance of this layer will directly influence the photoelectric properties of entire device.
Common articulamentum (N/P knot) structure has Alq 3: active metal/WO 3And Bphen: active metal/FeCl 2Deng.Wherein N type layer mainly is made up of organic layer doping active metal, and P type layer adopts inorganic semiconductor material.The subject matter that conventional N/P articulamentum exists is, the organic material electron mobility in the N type layer is low, and P type layer mostly is inorganic material, required evaporation temperature height, process implementing difficulty.
Summary of the invention
The object of the present invention is to provide a kind of luminescence unit structure of improving, obtain the organic electroluminescent devices of laminated construction of high-performance luminous efficiency.
The present invention seeks to be achieved by the following technical programs: the present invention's lamination organic electroluminescence device comprises pair of electrodes and is arranged on this to the organic light emitting medium between the electrode, organic light emitting medium comprises at least two luminescence units, articulamentum is set between luminescence unit, it is characterized in that described articulamentum comprises at least a compound that is selected among following general formula I or the II:
Figure A200810246831D00131
Wherein, it is 6 to 30 inferior condensed-nuclei aromatics that Ar is selected from carbon number, or to be selected from carbon number be 6 to 30 inferior condensed hetero ring aromatic hydrocarbons; N is selected from 2 to 4 integer;
While alkali doped material or alkali metal compound.
Ar among described general formula I and the general formula I I preferably from naphthylene, connection naphthylene, anthrylene, Ya perylene base, inferior pyrenyl, inferior quinolyl, the inferior quinolyl of connection, , dibenzo , this layer plays the effect of charge generating layers
The compound concrete structure formula that described articulamentum is selected among described general formula I or the II is as follows:
Figure A200810246831D00132
Figure A200810246831D00141
Figure A200810246831D00151
Figure A200810246831D00171
Figure A200810246831D00181
Figure A200810246831D00191
Figure A200810246831D00201
Described alkali metal material or alkali-metal compound comprise: lithium, lithium nitride, lithium fluoride, potassium borohydride, lithium borohydride, caesium, 8-hydroxy-quinoline lithium, cesium carbonate.
Comprise two kinds of compounds that are selected among general formula I or the II in the described electric transmission functional layer.
Also be doped with alkali metal material or alkali-metal compound in the described electric transmission functional layer.
Described alkali metal material or alkali-metal compound comprise: lithium, lithium nitride, lithium fluoride, potassium borohydride, lithium borohydride, caesium, 8-hydroxy-quinoline lithium, cesium carbonate.
The doping content of alkali metal material or alkali-metal compound is 1%-50% in described articulamentum and the electron transfer layer.
Between described electric transmission functional layer and the electrode electron injecting layer is arranged.
The material of described electron injecting layer is selected from alkali metal or alkali-metal compound, or is selected from alkaline-earth metal or alkaline earth metal compounds.
The material of described electron injecting layer is selected from lithium, lithium fluoride, lithia, lithium nitride, potassium borohydride, lithium borohydride, caesium, cesium carbonate, 8-hydroxy-quinoline lithium, calcium, calcirm-fluoride, magnesium, magnesium fluoride.
The present invention adopts the compound doped active metal contain pyridine radicals or its compound as N type layer, adopts HAT, MoO 2, FeCl 2Deng material as P type layer, more than two-layer two or more luminescence units are coupled together, played the effect of charge generating layers.The current efficiency of the device of N luminescence unit of stack is N times of single luminescent layer device current efficient.And the device power efficiency also obtains certain raising.The selected articulamentum material of the present invention is compared conventional laminated device in addition, has lower film-forming temperature, and preparation technology is simple relatively.
Description of drawings
Fig. 1 is a device architecture schematic diagram of the present invention.Be respectively the laminated device of common single-shot light unit component, two luminescence units and the laminated device of N luminescence unit.
Fig. 2 is the embodiment of the invention 1 device 1-6 current efficiency-current density curve comparison diagram;
Fig. 3 is the embodiment of the invention 2 devices 7,8 current efficiency-current density curve comparison diagram.
Embodiment
With reference to Fig. 1 a, be device 1,7,9 device architecture figure in the embodiment of the invention 1,2, be common single-shot light unit component.
With reference to Fig. 1 b,, be the laminated device of two luminescence units for device 2-6,8,10-14 device architecture figure in the embodiment of the invention 1,2,3.
With reference to Fig. 1 c, the extension for double-deck luminescent layer laminated device in the embodiment of the invention 1,2,3 does not relate among the embodiment, but still belongs to the scope of laminated device of the present invention.
Basic structure in the organic electroluminescence device that the present invention proposes comprises: substrate, luminescence unit, articulamentum and negative electrode, wherein luminescence unit comprises hole transmission layer/luminescent layer/electron transfer layer etc.
Substrate can be glass or flexible substrate, has electrode above it.First electrode layer (anode layer), can adopt inorganic material or organic conductive polymer, inorganic material is generally the higher metals of work function such as metal oxides such as ITO, zinc oxide, zinc tin oxide or gold, copper, silver, the optimized ITO that is chosen as, organic conductive polymer are preferably a kind of material in polythiophene/polyvinylbenzenesulfonic acid sodium (hereinafter to be referred as PEDOT:PSS), the polyaniline (hereinafter to be referred as PANI); The second electrode lay (cathode layer, metal level) generally adopts lower metal, metallic compound or the alloys of work function such as lithium, magnesium, calcium, strontium, aluminium, indium, and the present invention is preferably Li 3N/Al, Li 3N:Al/Al, Li 3N/Ag or Li 3N:Ag/Ag etc.
Organic light emitting medium mainly includes organic electroluminescent layer (EML), and the luminescent layer color is not limit, can be red, green, color such as orchid, also can be white light parts.The device luminescent layer generally adopts small molecule material, can be fluorescent material, as metal organic complex (as Alq 3, Gaq 3Al (Saph-q) or Ga (Saph-q)) compounds, can be doped with dyestuff in this small molecule material, doping content is the 0.01wt%～20wt% of small molecule material, dyestuff is generally aromatic condensed ring class (as rubrene), Coumarins is (as DMQA, C545T) or two pyrans class (as DCJTB, DCM) a kind of material in the compound, the luminescent layer material also can adopt carbazole derivates as 4,4 '-N, N '-two carbazoles-biphenyl (CBP), polyvinylcarbazole (PVK), but Doping Phosphorus photoinitiator dye in this material, as three (2-phenylpyridine) iridium (Ir (ppy) 3), two (2-phenylpyridine) (acetylacetone,2,4-pentanedione) iridium (Ir (ppy) 2 (acac)), octaethylporphyrin platinum (PtOEP) etc.;
Can also comprise hole injection layer and hole transmission layer in the above-mentioned device architecture, the preferred HAT of host material of hole injection layer (HIL) or be 4,4 ' 4 " (N-3-aminomethyl phenyl-N-phenyl-amino)-triphenylamine (m-MTDATA), 4-three, 4 ' 4 "-three (N-2-naphthyl-N-phenyl-amino)-triphenylamines (2-TNATA); The host material of hole transmission layer (HTL) can adopt the low molecular material of the arylamine class and the branch polymer same clan, is preferably N, N '-two-(1-naphthyl)-N, N '-diphenyl-1,1 '-xenyl-4,4 '-diamines (NPB); The electric transmission functional layer is used the material among the present invention.
To provide embodiment below also in conjunction with the accompanying drawings, specific explanations technical scheme of the present invention.Should be noted that the following examples only are used for helping to understand invention, rather than limitation of the present invention.
Embodiment 1:
Device architecture:
Device1：ITO/HIL/EL1/Li 3N/Al
Device2-6：ITO/HIL/EL1/N/P/EL2/Li 3N/Al
Wherein EL1 is among the Device 2-6: NPB (40nm)/Alq3 (30nm)/(Compound C 1, C11, C21, C31 or Alq 3) (20nm)
N/P among the Device 2-6 is: (Compound C 1, C11, C21, C31 or Alq 3) doping 10%Li3N/V 2O 5
EL2 is among the Device:2-6: NPB (40nm)/Alq 3(30nm)/(Compound C 1, C11, C21, C31 or Alq 3)
With the ITO electro-conductive glass substrate of the good special pattern of etching as substrate, substrate is placed on the deionized water for ultrasonic ripple that contains cleaning fluid to be cleaned, the washing lotion temperature is about 60 ℃, the substrate that will clean with infrared roasting lamp is dried then, put into evaporation chamber evaporation hole injection layer, EL1, compound L i3N/P articulamentum, E12, electrode successively, evaporate process middle chamber pressure is lower than 5.0 * 10 -3Pa.In the present embodiment, N type articulamentum adopts Compound C 1, C11, C21, C31 or Alq 3The mode of steaming altogether with the doping of lithium nitride double source prepares.
As can be seen from Figure 2, adopt the device of two luminescence unit overlaying structures, about current efficiency is compared single luminescence unit device current efficient and is doubled.Compound C 1, C11, C21, C31 and A13 are not only as electron transfer layer, also as the N type articulamentum material of main part in the N/P articulamentum.Find out from test data, adopt the device current efficient of Compound C 1, C11, C21, C31 to be higher than Alq 3Device simultaneously, as can be seen from Figure 2, adopts C21 as N type articulamentum material of main part Li doped 3N is an optimal case.
Embodiment 2:
Device architecture:
Device 7：ITO/HIL/EL3/Li 3N/Al
Device 8：ITO/HIL/EL3/N/P/EL4/Li 3N/Al
Wherein EL3 is: NPB (40nm)/GH:GD/ Compound C 1 (20nm)
N/P is: Compound C 1:10% Li3N/HAT
EL4 is: NPB (40nm)/GH:GD/ Compound C 1 (20nm)
With the ITO electro-conductive glass substrate of the good special pattern of etching as substrate, substrate is placed on the deionized water for ultrasonic ripple that contains cleaning fluid to be cleaned, the washing lotion temperature is about 60 ℃, the substrate that will clean with infrared roasting lamp is dried then, put into evaporation chamber evaporation hole injection layer, EL1, N/P articulamentum, E12, electrode successively, evaporate process middle chamber pressure is lower than 5.0 * 10 -3Pa.In the present embodiment, the mode that N type articulamentum adopts Compound C 1 and the doping of lithium nitride double source to steam altogether prepares.
As can be seen from Figure 2, adopt the device of two luminescence unit overlaying structures, current efficiency is compared single luminescence unit device current efficient and is doubled.Table 1 is device 7,8 every index contrasts.
Table 1:
Condition Require brightness cd/m 2 Voltage V Current efficiency cd/A Luminous efficiency 1m/W
Device
7 5000.00 4.75 4.05 2.65
Device 8 5000.00 8.89 9.50 3.5
Simultaneously as can be seen from the above table, under same brightness, single-shot light unit and lamination luminescence unit operating voltage be respectively 4.7V and 8.9V, voltage increases less than to one times, so the power efficiency of device also has raising.
Embodiment 3
Device 9：ITO/HAT/EL5/Alq 3:Li/Al
Device 10:ITO/m-MTDATA:F1TCNQ/EL5/Alq 3: doping 10%Li/m-MTDATA:F1TCNQ/EL5/Alq 3: Li/Al, wherein, N/P is Alq 3: doping 10%Li/m-MTDATA:F1TCNQ.
Device 11:ITO/MoO 3/ EL5/ Compound C 1: doping 10%Li 3N/MoO 3/ EL5/ Compound C 1:Li 3N/Al, wherein, N/P is a Compound C 1: doping 10%Li 3N/MoO 3
Device 12:ITO/m-MTDATA:F1TCNQ/EL5/ Compound C 1: doping 10%Li 3N/m-MTDATA:F1TCNQ/EL5/ Compound C 1: doping 10%Li 3N/Al, wherein, N/P is a Compound C 1: doping 10%Li 3N/m-MTDATA:F1TCNQ.
Device 13:ITO/HAT/EL5/ Compound C 1: doping 10%Li 3N/HAT/EL5/ Compound C 1: doping 10%Li 3N/Al, wherein, N/P is a Compound C 1: doping 10%Li 3N/HAT.
Device 14:ITO/HAT/EL5/ Compound C 1: doping 70%Li 3N/HAT/EL5/ Compound C 1: doping 70%Li 3N/Al, wherein, N/P is a Compound C 1: doping 70%Li 3N/HAT.
EL5 is: NPB/Alq 3: C545T/Alq 3
Table 2 is the every index contrast of device 9-13.
Table 2:
Condition Require brightness cd/m 2 Voltage V Current efficiency cd/A Luminous efficiency 1m/W
Device 9 1000.00 4.2 8.0 5.9
Device 10 1000.00 8.89 14.6 5.16
Device 11 1000.00 8.0 15.0 5.89
Device 12 1000.00 8.5 14.8 5.47
Device 13 1000.00 7.5 16.2 6.78
Device 14 1000.00 9.2 14.5 4.95
As can be seen from the above table, articulamentum Compound C 1:Li 3N/HAT is this series preferred structure, and device 13 is compared with all the other devices, and current efficiency and luminous efficiency aspect all improve a lot.
Though the present invention discloses as above with preferred embodiment; yet it is not in order to limit the present invention; anyly be familiar with this technology personage; without departing from the spirit and scope of the present invention; when being used for a variety of modifications and variations; therefore, protection scope of the present invention is as the criterion when the claim with application defines.

Claims (11)

1, a kind of lamination organic electroluminescence device, comprise pair of electrodes and be arranged on this organic light emitting medium between the electrode, organic light emitting medium comprises at least two luminescence units, articulamentum is set between luminescence unit, it is characterized in that described articulamentum comprises at least a compound that is selected among following general formula I or the II:
Figure A200810246831C00021
Wherein, it is 6 to 30 inferior condensed-nuclei aromatics that Ar is selected from carbon number, or to be selected from carbon number be 6 to 30 inferior condensed hetero ring aromatic hydrocarbons; N is selected from 2 to 4 integer;
While alkali doped material or alkali metal compound.
2, according to the lamination organic electroluminescence device of claim 1, it is characterized in that, wherein the Ar among general formula I and the general formula I I preferably from naphthylene, connection naphthylene, anthrylene, Ya perylene base, inferior pyrenyl, inferior quinolyl, the inferior quinolyl of connection,
Figure A200810246831C0002094027QIETU
, dibenzo
Figure A200810246831C0002094027QIETU
According to the lamination organic electroluminescence device of claim 1 or 2, it is characterized in that 3, the compound concrete structure formula that articulamentum is selected among described general formula I or the II is as follows:
Figure A200810246831C00022
Figure A200810246831C00031
Figure A200810246831C00041
Figure A200810246831C00051
Figure A200810246831C00071
Figure A200810246831C00091
Figure A200810246831C00101
4, lamination organic electroluminescence device according to claim 1 is characterized in that, described alkali metal material or alkali-metal compound comprise: lithium, lithium nitride, lithium fluoride, potassium borohydride, lithium borohydride, caesium, 8-hydroxy-quinoline lithium, cesium carbonate.
5, lamination organic electroluminescence device according to claim 1 and 2 is characterized in that, described device also comprises the electric transmission functional layer, comprises two kinds of compounds that are selected among general formula I or the II in the electric transmission functional layer.
6, lamination organic electroluminescence device according to claim 5 is characterized in that, also is doped with alkali metal material or alkali-metal compound in the electric transmission functional layer.
7, lamination organic electroluminescence device according to claim 6 is characterized in that, described alkali metal material or alkali-metal compound comprise: lithium, lithium nitride, lithium fluoride, potassium borohydride, lithium borohydride, caesium, 8-hydroxy-quinoline lithium, cesium carbonate.
8, according to claim 1 or 6 described lamination organic electroluminescence devices, it is characterized in that the doping content of described alkali metal material or alkali-metal compound is 1%-50%.
9, lamination organic electroluminescence device according to claim 1 and 2 is characterized in that, described device has electron injecting layer between electric transmission functional layer and electrode.
10, according to claim 9 described lamination organic electroluminescence devices, it is characterized in that the material of described electron injecting layer is selected from alkali metal or alkali-metal compound, or be selected from alkaline-earth metal or alkaline earth metal compounds.
11, lamination organic electroluminescence device according to claim 10, it is characterized in that the material of described electron injecting layer is selected from lithium, lithium fluoride, lithia, lithium nitride, potassium borohydride, lithium borohydride, caesium, cesium carbonate, 8-hydroxy-quinoline lithium, calcium, calcirm-fluoride, magnesium, magnesium fluoride.
CN2008102468311A 2008-12-31 2008-12-31 Organic electroluminescent devices of laminated construction Active CN101452997B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2008102468311A CN101452997B (en) 2008-12-31 2008-12-31 Organic electroluminescent devices of laminated construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2008102468311A CN101452997B (en) 2008-12-31 2008-12-31 Organic electroluminescent devices of laminated construction

Publications (2)

Publication Number Publication Date
CN101452997A true CN101452997A (en) 2009-06-10
CN101452997B CN101452997B (en) 2011-06-22

Family

ID=40735107

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2008102468311A Active CN101452997B (en) 2008-12-31 2008-12-31 Organic electroluminescent devices of laminated construction

Country Status (1)

Country Link
CN (1) CN101452997B (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011057461A1 (en) * 2009-11-13 2011-05-19 北京维信诺科技有限公司 Organic materials and organic electroluminescent apparatuses using the same
CN101694849B (en) * 2009-09-22 2012-08-22 昆山维信诺显示技术有限公司 Organic electroluminescence lamination device
CN103183693A (en) * 2011-12-31 2013-07-03 昆山维信诺显示技术有限公司 Borinane benzopyrene derivate, preparation method and application thereof, and organic light-emitting device
WO2013114941A1 (en) * 2012-02-03 2013-08-08 Jnc株式会社 Anthracene derivative and organic electroluminescent element using same
US8836337B2 (en) 2009-06-05 2014-09-16 Beijing Visionox Technology Co., Ltd. Organic electroluminescence device and testing method thereof
KR101853130B1 (en) * 2010-08-26 2018-04-27 제이엔씨 주식회사 Anthracene derivative and organic electroluminescence element using the same
JP2019096823A (en) * 2017-11-27 2019-06-20 Jnc株式会社 Organic electroluminescent element
CN111187201A (en) * 2020-01-22 2020-05-22 清华大学 Compound and organic electroluminescent device
WO2023020538A1 (en) * 2021-08-18 2023-02-23 清华大学 Serial organic electroluminescent device

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8836337B2 (en) 2009-06-05 2014-09-16 Beijing Visionox Technology Co., Ltd. Organic electroluminescence device and testing method thereof
CN101694849B (en) * 2009-09-22 2012-08-22 昆山维信诺显示技术有限公司 Organic electroluminescence lamination device
WO2011057461A1 (en) * 2009-11-13 2011-05-19 北京维信诺科技有限公司 Organic materials and organic electroluminescent apparatuses using the same
US9412951B2 (en) 2009-11-13 2016-08-09 Beijing Visionox Technology Co., Ltd. Organic materials and organic electroluminescent apparatuses using the same
KR101853130B1 (en) * 2010-08-26 2018-04-27 제이엔씨 주식회사 Anthracene derivative and organic electroluminescence element using the same
CN103183693B (en) * 2011-12-31 2015-09-02 昆山维信诺显示技术有限公司 A kind of vborinane benzopyrene derivate, its preparation method, purposes and organic electroluminescence device
CN103183693A (en) * 2011-12-31 2013-07-03 昆山维信诺显示技术有限公司 Borinane benzopyrene derivate, preparation method and application thereof, and organic light-emitting device
JPWO2013114941A1 (en) * 2012-02-03 2015-05-11 Jnc株式会社 Anthracene derivative and organic electroluminescence device using the same
WO2013114941A1 (en) * 2012-02-03 2013-08-08 Jnc株式会社 Anthracene derivative and organic electroluminescent element using same
US9478750B2 (en) 2012-02-03 2016-10-25 Jnc Corporation Anthracene derivative and organic electroluminescent element using the same
JP2019096823A (en) * 2017-11-27 2019-06-20 Jnc株式会社 Organic electroluminescent element
CN111187201A (en) * 2020-01-22 2020-05-22 清华大学 Compound and organic electroluminescent device
WO2023020538A1 (en) * 2021-08-18 2023-02-23 清华大学 Serial organic electroluminescent device

Also Published As

Publication number Publication date
CN101452997B (en) 2011-06-22

Similar Documents

Publication Publication Date Title
CN101452997B (en) Organic electroluminescent devices of laminated construction
CN100484353C (en) Organic electroluminescent part
CN106898700B (en) A kind of phosphorescent organic electroluminescent device
CN106058066B (en) Organic electroluminescence device and preparation method thereof, display device
CN100471352C (en) Organic electroluminescence device
CN101694849B (en) Organic electroluminescence lamination device
CN101364636A (en) Organic electroluminescent device
CN102136550B (en) White light organic electroluminescent device and preparation method thereof
CN105514291A (en) Organic light-emitting device
CN102569660A (en) Organic electroluminescent device with laminated structure
CN102779948A (en) White organic electroluminescent device and manufacturing method thereof
CN106328828A (en) Organic electroluminescent device
CN101908532B (en) Thin double-faced display OLED (Organic Light Emitting Diode) device and manufacturing method thereof
CN101908533A (en) Bilaterally displayed OLED (Organic Light-emitting Device) and preparation method thereof
CN101540375A (en) Organic electroluminescence device
CN100452476C (en) Organic electroluminescent device
CN102931357B (en) Two emission layer hemispherical shell organic electroluminescence device and preparation method thereof
CN102074655B (en) Organic light-emitting diode device
CN201540892U (en) OLED device with double-sided display function
CN105374949A (en) Organic light-emitting device and preparation method thereof
CN101163359A (en) Organic electroluminescent device
CN104134753A (en) Laminated organic light emitting diode
CN106008574B (en) A kind of multifunction triaryl boron derivatives as organic electro phosphorescent device material of main part and thermic delayed fluorescence material
CN101394696A (en) Organic EL device
CN101908531A (en) Multilayer electroluminescent device

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20090610

Assignee: GU'AN YEOLIGHT TECHNOLOGY CO., LTD.

Assignor: Kunshan visionox Technology Co., Ltd.|Beijing weixinnuo Technology Co. Ltd

Contract record no.: 2016990000062

Denomination of invention: Organic electroluminescent devices of laminated construction

Granted publication date: 20110622

License type: Common License

Record date: 20160303

LICC Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model