CN100350635C - Organic lumine scent displaying devices - Google Patents
Organic lumine scent displaying devices Download PDFInfo
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- CN100350635C CN100350635C CNB02160746XA CN02160746A CN100350635C CN 100350635 C CN100350635 C CN 100350635C CN B02160746X A CNB02160746X A CN B02160746XA CN 02160746 A CN02160746 A CN 02160746A CN 100350635 C CN100350635 C CN 100350635C
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- negative electrode
- power source
- organic
- positive electrode
- type material
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- 102000006830 Luminescent Proteins Human genes 0.000 title 1
- 108010047357 Luminescent Proteins Proteins 0.000 title 1
- 239000000463 material Substances 0.000 claims abstract description 28
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 238000004020 luminiscence type Methods 0.000 claims abstract description 8
- 238000005215 recombination Methods 0.000 claims abstract description 6
- 230000006798 recombination Effects 0.000 claims abstract description 5
- 230000027756 respiratory electron transport chain Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 abstract description 3
- 239000011368 organic material Substances 0.000 abstract description 2
- 230000008020 evaporation Effects 0.000 description 8
- 238000001704 evaporation Methods 0.000 description 8
- 239000011777 magnesium Substances 0.000 description 4
- 238000005036 potential barrier Methods 0.000 description 4
- NRCMAYZCPIVABH-UHFFFAOYSA-N Quinacridone Chemical compound N1C2=CC=CC=C2C(=O)C2=C1C=C1C(=O)C3=CC=CC=C3NC1=C2 NRCMAYZCPIVABH-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- SJCKRGFTWFGHGZ-UHFFFAOYSA-N magnesium silver Chemical compound [Mg].[Ag] SJCKRGFTWFGHGZ-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- -1 naphthyl diphenyl diphenylamines Chemical class 0.000 description 2
- TVIVIEFSHFOWTE-UHFFFAOYSA-K tri(quinolin-8-yloxy)alumane Chemical compound [Al+3].C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1 TVIVIEFSHFOWTE-UHFFFAOYSA-K 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004770 highest occupied molecular orbital Methods 0.000 description 1
- 238000004768 lowest unoccupied molecular orbital Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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Abstract
The present invention relates to an organic luminescence display which comprises a power source (1) and a display unit (2), wherein a negative electrode of the power source (1) is orderly connected with a positive electrode through a negative electrode (3) in the display unit (2), an electronic transmission layer (4), a recombination luminescence layer (5) and a positive electrode (7). A P-shaped material (8) is inserted into the electronic transmission layer (4), and one end of the P-shaped material (8) is connected with the positive electrode of a power source (10); the negative electrode of the power source (10) is connected with the negative electrode (3), or an N-shaped material (9) is inserted in a hole transmission layer (6), and one end of the N-shaped material (9) is connected with the negative electrode of a power source (11); the positive electrode of the power source (11) is connected with the positive electrode (7). The three pole structural action is that a small current is used for controlling a glow current, and in this way, electric power consumption on a driving circuit can be reduced. The present invention can improve the cost performance of the organic negative display, simplify a process flow and reduce costs. The present invention can also adopt whole organic materials to make a flexible display, and use occasions of the organic luminescence display can be largely widened.
Description
Technical field
A kind of electronic display unit, especially a kind of organic light-emitting display device.
Background technology
Present organic luminescent device all is a kind of structure of two utmost point formulas, the structure of so-called two utmost point formulas is exactly that each display unit all has only two electrodes, be respectively negative electrode and anode, electric current injects electronics and hole respectively by these two electrodes, and electronics and hole arrive organic light-emitting device luminescent layer generation recombination luminescence at last.This is the basic principle of present two utmost point formula luminescent devices, it has advantage of simple structure, but it also exists some problems, because organic luminescent device belongs to current drives, so drive current is bigger, very most of power consumption is arranged on driver circuit, electric energy is converted into heat energy, device temperature is raise, very unfavorable to device lifetime.Especially making on the high-resolution display screen of large scale: first, owing to adopt TFT (thin-film transistor) driven with active matrix technology, and organic light-emitting device TFT technology manufacturing process more complicated has only the multi-crystal TFT technology relatively to be fit to organic luminescent device, and its TFT panel cost is higher; The second, because TFT technology and organic luminescent device manufacturing technology are incompatible, increased technological process; The 3rd, also have present TFT technology can't make flexible panel, this will limit the application scenario of display.
Summary of the invention
The technical issues that need to address of the present invention provide a kind of three-pole organic light-emitting display device.
For realizing the present invention, the three-pole organic light-emitting display device comprises first power supply, display unit, the negative pole of described first power supply by with described display unit in negative electrode, electron transfer layer, recombination luminescence layer, hole transmission layer, anode be connected successively with positive pole, in described electron transfer layer, insert P-type material, one end of described P-type material is connected with the positive pole of second source, and the negative pole of second source is connected with described negative electrode; Perhaps: insert n type material at described hole transmission layer, an end of described n type material is connected with the negative pole of the 3rd power supply, and the positive pole of described the 3rd power supply is connected with described anode.
Beneficial effect of the present invention:
1. at the big weakness of two utmost point formula organic luminescent device drive currents, adopt a kind of structure of three-pole, except negative electrode and the anode in two utmost point formulas, the control utmost point that we add between them, its effect is to remove to control glow current with a little electric current, so just can reduce the power consumption on the drive circuit;
2. can improve the cost performance of organic light emitting display;
Since the technology that adopts can with make the luminescent device compatibility, can simplify technological process, reduce cost;
4. because this structure can adopt full organic material, can make flexible display, the use occasion of expanding organic light emitting display greatly.
Description of drawings
Fig. 1 is two utmost point formula organic light-emitting display device figure;
Fig. 2 is the isoboles of two utmost point formula organic light-emitting display devices;
Fig. 3 is the 1st kind of three-pole organic light-emitting display device figure;
Fig. 4 is the isoboles of the 1st kind of three-pole organic light-emitting display device figure;
Fig. 5 is the 2nd kind of three-pole organic light-emitting display device figure;
Fig. 6 is the isoboles of the 2nd kind of three-pole organic light-emitting display device figure;
Fig. 7 is first embodiment of three-pole organic light-emitting display device;
Fig. 8 is second embodiment of three-pole organic light-emitting display device;
Among the figure: first power supply 1, display unit 2, negative electrode 3, electron transfer layer 4, recombination luminescence layer 5, hole transmission layer 6, anode 7, P-type material 8, n type material 9, second source 10, the three power supplys 11, NPN type triode 12, positive-negative-positive triode 13.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in detail:
Implementation of the present invention is to add one deck P-type material 8 in two utmost point formula organic luminescence display units 2 in the electron transfer layer 4, or adds one deck n type material 9 in hole transmission layer 6, as the control utmost point, and as Fig. 3, shown in 5, Fig. 4, the 6th, their isoboles.Because electron transport material is a n type material, add one deck P-type material therebetween, this has just constituted the structure of a NPN, because LUMO (the minimum track that the occupies) energy level of P-type material is higher, the lumo energy of n type material is lower, will be in the potential barrier of the electronics of near interface shape of PN junction, when the device two ends add forward voltage, because the existence of this potential barrier, electronics can not passed electron transfer layer and be arrived luminescent layer, therefore can be not luminous; When between the control utmost point and negative electrode, adding a second source 10, promptly positive voltage is added on the P-type material, at this moment near the electronic barrier the PN junction can reduce, and will pass the P-type material layer at electronics and enter N type electron transfer layer, arrives luminescent layer at last and hole-recombination is luminous.The principle of similar ambipolar triode, just can control the luminous of organic light emission spare with the electric current of the control utmost point, because triode has amplification,, so just can reduce the power consumption on the drive circuit as long as a very little Control current just can drive organic luminescent device.For the structure that in hole transmission layer, adds one deck n type material, it is the structure of a kind of PNP, it is that the control hole enters luminescent layer from anode, its operation principle and NPN similar, the potential barrier that a hole near the HOMO the PN junction (the highest track that do not occupy) energy level, can occur, when adding the 3rd power supply 11 between the control utmost point and the anode, potential barrier can reduce, and it is luminous that this can control organic light-emitting device equally.The basic principle of these two kinds of structures all is consistent.
Fig. 7 is an embodiment: device architecture is ITO/NPB/AlQ3:QA/AlQ3/NPB/AlQ3/Mg:Ag.On ITO (transparency electrode), evaporation one deck 50nmNPB (two naphthyl diphenyl diphenylamines) is as hole transmission layer earlier; The AlQ3 (8-hydroxyquinoline aluminum) of evaporation one deck 60nm on NPB again, the AQ (quinacridone) that wherein mixes, this one deck is as luminescent layer; Steaming the AlQ3 of 15nm again, is electron transfer layer; Steam the NPB of 5nm again, as key-course; And then the AlQ3 of evaporation 10nm, as electron transfer layer; Steam Mg:Ag (magnesium silver) alloy of 200nm at last, as negative electrode.Here NPB is a P-type material, and AlQ3 is a n type material, constitutes a NPN structure by them, and wherein NPB is drawn by electrode, as the control utmost point.
Fig. 8 is another embodiment: device architecture is ITO/NPB/AlQ3/NPB/AlQ3:QA/AlQ3/NPB/AlQ3/Mg:Ag.On ITO (transparency electrode), evaporation one deck 50nmNPB (two naphthyl diphenyl diphenylamines) is as hole transmission layer earlier; The AlQ3 (8-hydroxyquinoline aluminum) of evaporation one deck 5nm on NPB is as key-course; Evaporation one deck 20nmNPB on AlQ3 again, the AlQ3 of evaporation one deck 60nm on NPB again, the AQ (quinacridone) that wherein mixes, this one deck is as luminescent layer; And then the AlQ3 of evaporation 25nm, as electron transfer layer; Steam Mg:Ag (magnesium silver) alloy of 200nm at last, as negative electrode.Here NPB is a P-type material, and AlQ3 is a n type material, constitutes a positive-negative-positive structure by them, and wherein electrode is drawn by AlQ3, as the control utmost point.
Claims (1)
1. organic light-emitting display device, comprise first power supply (1), display unit (2), the negative pole of described first power supply (1) by with described display unit (2) in negative electrode (3), electron transfer layer (4), recombination luminescence layer (5), hole transmission layer (6), anode (7) be connected successively with positive pole, it is characterized in that:
Insert P-type material (8) in described electron transfer layer (4), an end of described P-type material (8) is connected with the positive pole of second source (10), and the negative pole of second source (10) is connected with described negative electrode (3); Perhaps:
Insert n type material (9) at described hole transmission layer (6), an end of described n type material (9) is connected with the negative pole of the 3rd power supply (11), and the positive pole of described the 3rd power supply (11) is connected with described anode (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB02160746XA CN100350635C (en) | 2002-12-26 | 2002-12-26 | Organic lumine scent displaying devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB02160746XA CN100350635C (en) | 2002-12-26 | 2002-12-26 | Organic lumine scent displaying devices |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1510754A CN1510754A (en) | 2004-07-07 |
| CN100350635C true CN100350635C (en) | 2007-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB02160746XA Expired - Fee Related CN100350635C (en) | 2002-12-26 | 2002-12-26 | Organic lumine scent displaying devices |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105845830A (en) * | 2015-01-12 | 2016-08-10 | 上海和辉光电有限公司 | Organic light-emitting device structure |
| CN110212101A (en) * | 2018-02-28 | 2019-09-06 | 昆山工研院新型平板显示技术中心有限公司 | Luminescent device and its display screen |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1176286A (en) * | 1996-06-06 | 1998-03-18 | 摩托罗拉公司 | Organic electroluminescent device with emission from hole transporting layer |
| US6023073A (en) * | 1995-11-28 | 2000-02-08 | International Business Machines Corp. | Organic/inorganic alloys used to improve organic electroluminescent devices |
| CN1338784A (en) * | 2000-08-11 | 2002-03-06 | 伊斯曼柯达公司 | Improved cathode layer in organic light-emitting diode device |
| US6366017B1 (en) * | 1999-07-14 | 2002-04-02 | Agilent Technologies, Inc/ | Organic light emitting diodes with distributed bragg reflector |
-
2002
- 2002-12-26 CN CNB02160746XA patent/CN100350635C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6023073A (en) * | 1995-11-28 | 2000-02-08 | International Business Machines Corp. | Organic/inorganic alloys used to improve organic electroluminescent devices |
| CN1176286A (en) * | 1996-06-06 | 1998-03-18 | 摩托罗拉公司 | Organic electroluminescent device with emission from hole transporting layer |
| US6366017B1 (en) * | 1999-07-14 | 2002-04-02 | Agilent Technologies, Inc/ | Organic light emitting diodes with distributed bragg reflector |
| CN1338784A (en) * | 2000-08-11 | 2002-03-06 | 伊斯曼柯达公司 | Improved cathode layer in organic light-emitting diode device |
| JP2002075658A (en) * | 2000-08-11 | 2002-03-15 | Eastman Kodak Co | Oled device |
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| CN1510754A (en) | 2004-07-07 |
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Assignee: Shanghai SVA Zhujin Microelectronics Co., Ltd. Assignor: Guangdian Electronic Co., Ltd., Shanghai Contract fulfillment period: 2007.11.30 to 2012.12.31 contract change Contract record no.: 2008310000174 Denomination of invention: Organic lumine scent displaying devices Granted publication date: 20071121 License type: Exclusive license Record date: 2008.10.9 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2007.11.30 TO 2012.12.31; CHANGE OF CONTRACT Name of requester: SHANGHAI OPTO-ELECTRICAL ZHUJIN MICROTRONICS A/S Effective date: 20081009 |
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Address after: 200081 Building 1, building 200, Zhang Heng Road, Zhangjiang hi tech park, Shanghai, Pudong New Area, 2 Patentee after: INESA Electron Co., Ltd. Address before: 200081 No. 196 Ouyang Road, Shanghai Patentee before: Guangdian Electronic Co., Ltd., Shanghai |
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Granted publication date: 20071121 Termination date: 20111226 |