CN103296220A - Series-connection-type organic electroluminescence module - Google Patents
Series-connection-type organic electroluminescence module Download PDFInfo
- Publication number
- CN103296220A CN103296220A CN2012100548430A CN201210054843A CN103296220A CN 103296220 A CN103296220 A CN 103296220A CN 2012100548430 A CN2012100548430 A CN 2012100548430A CN 201210054843 A CN201210054843 A CN 201210054843A CN 103296220 A CN103296220 A CN 103296220A
- Authority
- CN
- China
- Prior art keywords
- organic electroluminescent
- serial connection
- type organic
- connection type
- electroluminescent module
- 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.)
- Pending
Links
Images
Abstract
The invention provides a series-connection-type organic electroluminescence module which comprises a plurality of electroluminescence bodies, at least one charge-generating body and an electrode unit. Each electroluminescence body comprises an organic luminous layer. An electronic hole is formed during illumination of the charge-generating body. The charge-generating body is connected with the adjacent electroluminescence bodies so as to enable the electroluminescence bodies and the charge-generating body to form a series-connection mode. The electrode unit comprises an anode and a cathode. The anode and the cathode are electrically connected to the opposite ends of the electroluminescence bodies in the electroluminescence bodies and the charge-generating body which form the series-connection mode. According to the charge-generating body, light is utilized for generating the electronic hole, driving voltage can be effectively reduced, and luminous brightness and a bright room comparison are improved.
Description
Technical field
The present invention relates to a kind of organic electroluminescent module, particularly relate to a kind of serial connection type organic electroluminescent module.
Background technology
Display of organic electroluminescence (organic electroluminescence display, be called for short OELD), claim Organic Light Emitting Diode (organic light emitting diode is called for short OLED) again, be solid-state element, to compare shock resistance preferable with the LCD of present use.In addition, because Organic Light Emitting Diode is from main light emission, be to utilize back light unit to cooperate the brightness that control is sent of reversing of liquid crystal unlike LCD, so the visual angle is very big, and do not have the problem of angle limitations.In addition, Organic Light Emitting Diode is to lean on carrier in conjunction with adjusting luminosity, and is also quick by the LCD of equivalent liquid crystal capacitance control brightness on reaction speed.The more important thing is that Organic Light Emitting Diode can be formed at flexible base plate and deflection.Therefore, based on Organic Light Emitting Diode have that antidetonation is good, wide viewing angle, reaction speed are fast, deflection and frivolous etc. advantage, also gradually practical application in commercial uses such as light-emitting lamp and displays.
Consult Fig. 1, be traditional Organic Light Emitting Diode, comprise that a transparent glass substrate 11, one are formed at the anode 12 on this glass substrate 11, an electroluminor 14 that is formed on this anode 12, and a negative electrode 13 that is formed on this electroluminor 14.This electroluminor 14 forms one deck hole injection layer 141, one deck hole transmission layer 142, one deck organic luminous layer 143, one deck electron transfer layer 144 in regular turn from these anode 12 surfaces, and one deck electron injecting layer 145.The wherein arbitrary of this anode 12 or negative electrode 13 is the electric conducting material of transparent light-permeable, for example metal as thin as a wafer, conductive oxidized metal or conducting polymer.
When this anode 12 transmitted the DC driven current source 15 that comes from the outside with this negative electrode 13, the hole entered the hole injection layer 141 of this electroluminor 14, this organic luminous layer 143 of arrival through this hole transmission layer 142 after again from this anode 12; And electronics enters this electron injecting layer 145 of this electroluminor 14 from this negative electrode 13, arrives this organic luminous layer 143 again behind this electron transfer layer 144; Then, tie again in the electronics of this organic luminous layer 143 and hole and to be merged into excitation state, at last, becoming the electron hole pair of excitation state to discharge becomes the energy of luminous energy and gets back to ground state, and light passes the surface of this electroluminor 14 and this negative electrode 13 or this anode 12 and outwards luminous.
But the shortcoming of the Organic Light Emitting Diode that this is traditional mainly is the electron hole pair that only has this anode 12 and this negative electrode 13 to supply with can arrive this organic luminous layer 143, in this organic luminous layer 143 again in conjunction with and produce luminous energy, this causes this traditional Organic Light Emitting Diode driving voltage under the condition that produces predetermined luminosity too high easily, or under the condition of predetermined drive voltages the lower problem of luminosity.
Consult Fig. 2, therefore, in 2003, Japan chevron Junji professor Kido of university proposes a kind of organic electroluminescent module that is connected in series type, comprise a transparent glass substrate 21, an anode 22 that is formed on this glass substrate 21, two are arranged at the electroluminor 24 on this anode 22, an intermediate connector 25 that is folded in 24 of this electroluminors, and one in the negative electrode 23 away from electroluminor 24 end faces of this glass substrate 21.
The structure of the electroluminor of these serial connection type organic electroluminescent body 24 similar these traditional Organic Light Emitting Diodes: have one deck hole injection layer 241, one deck hole transmission layer 242, one deck organic luminous layer 243, one deck electron transfer layer 244, and one deck electron injecting layer 245.
When this anode 22 transmitted the DC driven current source 25 that comes from the outside with this negative electrode 23, this intermediate connector 25 was subjected to the formed electric field effects of direct current, forms electron hole pair in this intermediate connector 25; Wherein, the electronics that this intermediate connector 25 forms moves toward the direction near these anode 22 sides, and injection is near the organic luminous layer 243 of the electroluminor 24 of these anode 22 sides, move toward the direction near these negative electrode 23 sides in hole in this intermediate connector 25, and inject the organic luminous layer 243 near the electroluminor 24 of these negative electrode 23 sides; Simultaneously, the hole of the DC driven current source 25 that comes from the outside enters hole injection layer 241 near the electroluminor 24 of these anode 22 sides, this organic luminous layer 243 of arrival through this hole transmission layer 242 after again from this anode 22; The electronics of the DC driven current source 25 that comes from the outside enters electron injecting layer 245 near the electroluminor 24 of these negative electrode 23 sides, this organic luminous layer 243 of arrival through this electron transfer layer 244 after again from this negative electrode 23; Then this intermediate connector 25 electronics that forms and holes that come from the outside are in be combined near the organic luminous layer 243 of the electroluminor 24 of these anode 22 sides again and discharge luminous energy and outwards luminous, and the hole that this intermediate connector 25 forms and the electronics that come from the outside are combined and to discharge luminous energy also outwards luminous in the organic luminous layer 243 of the electroluminor 24 of close these negative electrode 22 sides again.
Can be found by above-mentioned serial connection type organic electroluminescent module, except the electron hole from this anode 22 and this negative electrode 23, also the principle that can utilize p-n to connect face (p-n junction) in the intermediate connector 25 of 24 of this two electroluminors forms electron hole pair again, and in these organic luminous layers 243 again in conjunction with and luminous-, thereby under the condition of the DC driven electric current identical with traditional Organic Light Emitting Diode, can obtain the luminosity of multiple, or under the condition that produces predetermined luminosity, life-span is longer, but required driving voltage is higher.
Therefore, for example patents such as US7728517, US7821201 and US7968214 all are the research about serial connection type organic electroluminescent module, and the organic semiconductor layer or the metal oxide layer that mainly are organic semiconductor layer collocation p-type that the n type is mixed become intermediate connector, and can produce electron hole pair when the electric field influence that formed by extraneous electric energy.Moreover serial connection type organic electroluminescent module also just like has been the Organic Light Emitting Diode main development tendency, and industry and educational circles also continue to be devoted to develop the organic electroluminescent module that driving voltage is lower and luminosity is higher.
Summary of the invention
The objective of the invention is is providing a kind of serial connection type organic electroluminescent module of low driving voltage.
Serial connection type organic electroluminescent module of the present invention comprises: a plurality of electroluminors, at least one charge generation body, and an electrode unit.
Each electroluminor comprises one deck organic luminous layer.
This charge generation body produces the electron hole when irradiation, this charge generation body connects two adjacent electroluminors and makes described electroluminor become series connection to form with the charge generation body.
This electrode unit comprises an anode and a negative electrode, this anode and this negative electrode respectively with the described electroluminor that becomes series connection to form and this charge generation body in be positioned at two end opposite two electroluminors be electrically connected.
This electrode unit comprises an anode and a negative electrode, this anode and this negative electrode respectively with the described electroluminor that becomes the series connection form and this charge generation body in be positioned at two end opposite two electroluminors be electrically connected.
Preferably, this charge generation body is accepted electric energy and is produced the electron hole.
Preferably, described electroluminor number is n, n 〉=2, and this charge generation body number is that (n-1) is individual.
Preferably, this charge generation body comprises the n section bar bed of material near this anode-side, and a p-type material layer near this cathode side.
Preferably, this p-type material layer and the n section bar bed of material are for absorbing the material of visible light.
Preferably, the material of this p-type material layer is to be selected from by by TiOPc, Phthalocyanine Zinc, nitrogen, nitrogen-dimethyl-3,4,9, and 10-dicarboximide, ten hexafluoro copper benzene dimethylans, and in the group that forms.
Preferably, the material of this n section bar bed of material is the isomeric compound, 3,4 that selects free carbon 60, phenyl-carbon 61-butyric acid methyl ester, the isomeric compound, 3,4 of the isomeric compound of 9,10-tetrabasic carboxylic acid-bisbenzimidazole, phenyl-carbon 71-butyric acid methyl ester, carbon 70, carbon 60 lists and many derivatives, phenyl-carbon 71-caproic acid methyl ester, 9,10-tetracarboxylic acid diimide, nitrogen, nitrogen-two (2,5-, two tributyl benzene)-3,4,9,10-dicarboximide, and in the group that forms.
Preferably, this serial connection type organic electroluminescent module also comprises a matrix structure, this matrix structure comprises a substrate and a film crystal tube drive circuit that is arranged on this substrate, and this anode is electrically connected with this film crystal tube drive circuit with one of them of this negative electrode.
Preferably, this anode connects this matrix structure, and this anode is transparency electrode, and this substrate is transparent material.
Preferably, this anode connects this matrix structure, and this negative electrode is transparency electrode.
Preferably, this negative electrode connects this matrix structure, and this negative electrode is transparency electrode, and this substrate is transparent material.
Preferably, this negative electrode connects this matrix structure, and this anode is transparency electrode.
Preferably, this substrate is flexible material.
Preferably, this serial connection type organic electroluminescent module also comprises a filter, and this filter is arranged at the exiting surface of this serial connection type organic electroluminescent module.
Preferably, described electroluminor comprises that also connects the wherein hole delivery unit on a surface of this organic luminous layer, and one connects this organic luminous layer another surperficial electronics delivery unit wherein.
Preferably, this hole delivery unit has the hole transmission layer that one deck connects this organic luminous layer, and one deck connects the hole injection layer of this hole transmission layer, this electronics delivery unit has the electron transfer layer that one deck connects this organic luminous layer, and one deck connects the electron injecting layer of this electron transfer layer.
In addition, another serial connection type organic electroluminescent module of the present invention comprises: a plurality of electroluminors, at least one charge generation body, and an electrode unit.
Each electroluminor comprises one deck organic luminous layer.
This charge generation body comprises one deck n section bar bed of material and one deck p-type material layer, this charge generation body connects two adjacent electroluminors and makes these electroluminors become the series connection form with this charge generation body, and this p-type material layer and the n section bar bed of material are for absorbing the material of visible light.
This electrode unit comprises an anode and a negative electrode, this anode and this negative electrode respectively with these electroluminors that become the series connection form and this charge generation body in be positioned at two end opposite two electroluminors be electrically connected.
Preferably, this charge generation body produces the electron hole when irradiation.
Beneficial effect of the present invention is: this charge generation body not only produces the electron hole when accepting electric energy, also can accept extraneous light or excite the generation electron hole pair from light time of this organic luminous layer, and supply two adjacent electroluminor electronics and holes respectively, and can effectively reduce the driving voltage of the required transmission of this electrode unit.
Description of drawings
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, below in conjunction with accompanying drawing the specific embodiment of the present invention is elaborated, wherein:
Fig. 1 is a cross-sectional schematic, and a kind of light-emitting diode in the past is described;
Fig. 2 is a cross-sectional schematic, and a kind of serial connection type organic electroluminescent module in the past is described;
Fig. 3 is a cross-sectional schematic, and one first preferred embodiment of serial connection type organic electroluminescent module of the present invention is described;
Fig. 4 is a cross-sectional schematic, illustrates that this first preferred embodiment is following emission type organic electro luminescent module;
Fig. 5 is a cross-sectional schematic, illustrates that this first preferred embodiment is emission type organic electro luminescent module under the type of being inverted;
Fig. 6 is a cross-sectional schematic, illustrates that this first preferred embodiment is emission type organic electro luminescent module on the type of being inverted;
Fig. 7 is a cross-sectional schematic, illustrates that the charge generation body of first preferred embodiment of serial connection type organic electroluminescent module of the present invention has a n section bar bed of material and a p-type material layer;
Fig. 8 is a cross-sectional schematic, and one second preferred embodiment of serial connection type organic electroluminescent module of the present invention is described;
Fig. 9 is a cross-sectional schematic, illustrates that second preferred embodiment of serial connection type organic electroluminescent module of the present invention comprises most electroluminors and charge generation body;
Figure 10 is a cross-sectional schematic, and one the 3rd preferred embodiment of serial connection type organic electroluminescent module of the present invention is described.
Embodiment
The present invention is described in detail below in conjunction with drawings and Examples:
Consult Fig. 3, one first preferred embodiment of serial connection type organic electroluminescent module of the present invention comprises a matrix structure 3, two electroluminors 4, a charge generation body 5, and an electrode unit 6.
In this first preferred embodiment, this matrix structure 3 comprises glass substrate or flexible base plate, but not as limit.
These electroluminors 4 are stacked and placed on this matrix structure 3, each electroluminor 4 comprises one deck organic luminous layer 41, this organic luminous layer 41 becomes the electron hole pair of excitation state when accepting electronics with the hole, and gives off energy and after forming light, electron hole pair returns ground state.And for making electronics and hole more effectively be sent to this organic luminous layer 41, each electroluminor 4 comprises that also is formed at the wherein hole delivery unit 42 on a surface of this organic luminous layer 41, and one is formed at the wherein electronics delivery unit 43 of another opposed surface of this organic luminous layer 41.This hole delivery unit 42 has the hole transmission layer 422 that one deck is connected with this organic luminous layer 41, and one deck is formed at the hole injection layer 421 on these hole transmission layer 422 surfaces, this electronics delivery unit 43 has the electron transfer layer 432 that one deck is connected with this organic luminous layer 41, and one deck is formed at the electron injecting layer 431 on these electron transfer layer 432 surfaces.
Wherein, the hole transmission layer 422 of this hole delivery unit 42 is with N, N '-bis (naphthalen-1-yl)-N, N '-bis (phenyl)-benzidine (being called for short NPB), N, N '-bis (3-methylphenyl)-N, N '-bis (phenyl)-benzidine (being called for short TPD) or Di-[4-(N, N-ditolyl-amino)-and phenyl] cyclohexane (be called for short TAPC) is the main composition material, the electron injecting layer 431 of this electronics delivery unit 43 is the main composition material with the lithium fluoride, and this electron transfer layer 432 (is called for short Alq with Tris (8-hydroxy-quinolinato) aluminium
3), 4,7-diphenyl-1,10-phenanthroline (be called for short BPhen) or Bis (2-methyl-8-quinolinolate)-4-(phenylphenolato) aluminium (being called for short BAlq) they are the main composition material; This organic luminous layer 41 is based on luminous organic material, and decide on the required wave-length coverage of sending, for example if need send ruddiness, then can 4-(dicyanomethylene)-2-tert-butyl-6-(1,1,7,7-tetramethyljulolidin-4-yl-vinyl)-4H-pyran (being called for short DCJTB) is main, if need send green glow, then can (be called for short Alq by Tris (8-hydroxy-quinolinato) aluminium
3) be main, if need send blue light, then can 4,4 '-bis[4-(di-p-tolylamino) styryl] biphenyl (being called for short DPVBi) is main.But this organic luminous layer 41, hole delivery unit 42, and the constituent material of electronics delivery unit 43 is not limited with above-mentioned, as long as the highest molecule orbital (the highest occupied molecular orbital that fills up of hole delivery unit 42, be called for short HOMO) and minimum molecule orbital (the lowest unoccupied molecularorbital that do not fill up of electronics delivery unit 43, being called for short LUMO) son and the hole transition of can powering is to this organic luminous layer 41 and produce the light of predetermined wavelength range, just can be used as the hole delivery unit 42 of this electroluminor 4, electronics delivery unit 43, and organic luminous layer 41.
This charge generation body 5 is folded in 4 of this two electroluminors, just connects this two adjacent electroluminor 4, and makes 5 one-tenth series connection forms of these electroluminors 4 and this charge generation body.This charge generation body 5 can produce electronics and hole when accepting luminous energy at irradiation.And preferably, this charge generation body 5 also can produce electronics and hole when accepting electric energy.
This electrode unit 6 comprises an anode 61 and a negative electrode 62, and is positioned at the anti-electroluminor of holding 4 electrical connections of two-phase respectively with in this two electroluminor 4 that becomes the series connection form and this charge generation body 5.In more detail, this anode 61 is positioned at electroluminor 4 surfaces that outermost layer is hole injection layer 421 after being formed at serial connection, and this negative electrode 62 is positioned at electroluminor 4 surfaces that outermost layer is electron injecting layer 431 after being formed at serial connection.
In the present invention, this electroluminor 4 is light-permeable, makes this charge generation body 5 that is folded in two electroluminors 4 can accept extraneous luminous energy.This matrix structure 3 comprises glass substrate or flexible base plate, but not as limit, wherein, this substrate can be transparent or opaque material.
When extraneous illumination is incident upon this charge generation body 5, this charge generation body 5 formation electron hole pair that is stimulated, wherein, electronics moves toward the electroluminor 4 near these anode 61 sides, and enter organic luminous layer 41 near the electroluminor 4 of these anode 61 sides through the electron injecting layer 431 of this electroluminor 4 and electron transfer layer 432, the hole is toward moving near the electroluminor 4 of these negative electrode 62 sides, and enters the organic luminous layer 41 near the electroluminor 4 of these negative electrode 62 sides through the hole injection layer 421 of this electroluminor 4 and hole transmission layer 422; Simultaneously, the hole of the drive current source 8 that comes from the outside enters hole injection layer 421 near the electroluminor 4 of these anode 61 sides, this organic luminous layer 41 of arrival through this hole transmission layer 422 after again from this anode 61; The electronics of the drive current source 8 that comes from the outside enters electron injecting layer 431 near the electroluminor 4 of these negative electrode 62 sides, this organic luminous layer 41 of arrival through this electron transfer layer 432 after again from this negative electrode 62; Then this charge generation body 5 electronics that forms and holes that come from the outside discharge luminous energy and outwards luminous in be combined near the organic luminous layer 41 of the electroluminor 4 of these anode 61 sides again, and the hole that this charge generation body 5 forms and the electronics that come from the outside are combined and to discharge luminous energy also outwards luminous in the organic luminous layer 41 of the electroluminor 4 of close these negative electrode 62 sides again.
Moreover, the charge generation body 5 of this first preferred embodiment is when being subjected to the influencing of this electrode unit 6 electric current that transmits, also produce electronics and hole by potential difference, and similar above-mentioned ground, electronics and hole can be injected two adjacent electroluminors 4 respectively, equally also can be luminous for the organic luminous layer 41 of these electroluminors 4.
In addition, when these electroluminors 4 are luminous, also can excite and form electronics and hole for this charge generation body 5 towards the light of this charge generation body 5, and then have more electron hole pair in these adjacent electroluminors 4.
The charge generation body 5 of this first preferred embodiment all can produce electronics and hole when accepting luminous energy and electric energy, and the electric energy that does not need to utilize this electrode unit 6 to transmit fully could produce electronics and hole, so can reduce the electric energy use amount, and then effectively reduce the driving voltage of organic electroluminescent module of the present invention.
In this first preferred embodiment, the exiting surface of this organic electroluminescent module is the surface of this negative electrode 62, and these anode 61 these matrix structures 3 of connection just, and this negative electrode 62 are transparency electrode, to form an organic electroluminescent module that goes up light emitting-type.
Consult Fig. 4, it should be noted that, about enforcement aspect of the present invention, when this anode 61 connects this matrix structure 3, and this anode 61 is transparency electrode, and this substrate in this matrix structure 3 forms an organic electroluminescent module that exiting surface is the following light emitting-type on these anode 61 surfaces when also being transparent material.Consult Fig. 5, this negative electrode 62 connects these matrix structures 3, and this negative electrode 62 be transparency electrode, and this substrate in this matrix structure 3 forms the following emission type organic electro luminescent module that an exiting surface is the type that is inverted on these negative electrode 62 surfaces when also being transparent material.Consult Fig. 6, if this negative electrode 62 connects these matrix structures 3, and this anode 61 forms the last emission type organic electro luminescent module that an exiting surface is the type that is inverted on these anode 61 surfaces when be transparency electrode.Moreover above-mentioned electrode can be conductive metal, oxidized metal or conducting polymer.And the connected mode of anode 61, negative electrode 62 and matrix structure 3 and light transmission features and form the organic electroluminescent module of different lighting kenels have been had the knack of by the person with usual knowledge in their respective areas, no longer add to give unnecessary details at this.
Consult Fig. 7, also it should be noted that, this charge generation body 5 can comprise one deck near the n section bar bed of material 51 of anode 61 sides of this electrode unit 6, and the p-type material layer 52 of negative electrode 62 sides of close this electrode unit 6 of one deck, and can more effectively produce electronics and hole for this charge generation body 5.
Preferably, this p-type material layer 52 of this charge generation body 5 and the n section bar bed of material 51 are for absorbing the material of visible light (optical wavelength range of visible light is 380 nanometer to 780 nanometers).The material of this p-type material layer 52 can be selected from by TiOPc (Titanium oxide phthalocyanine is called for short TiOPC), Phthalocyanine Zinc (Zinc phthalocyanine is called for short ZnPc), nitrogen, nitrogen-dimethyl-3,4,9,10-dicarboximide (N, N '-dimethyl-3,4,9,10-perylenedicarboximide is called for short MePTC), ten hexafluoro copper benzene dimethylan (Copper (II) 1,2,3,4,8,9,10,11,15,16,17,18,22,23,24,25-hexadecafluoro-29H, 31H-phthalocyanine is called for short F
16CuPc), and in the group that forms.
Preferably the material of this n section bar bed of material 51 can select free carbon 60 (C60), the isomeric compound ((6 of phenyl-carbon 61-butyric acid methyl ester, 6)-phenyl-C61 butyric acid methyl ester, be called for short PC61BM), 3,4,9,10-tetrabasic carboxylic acid-bisbenzimidazole (3,4,9,10-perylenetetracarboxylic-bis-benzimidazole, be called for short PTCBi), the isomeric compound ((6 of phenyl-carbon 71-butyric acid methyl ester, 6)-phenyl C71 butyric acid methyl ester, mixture ofisomers, be called for short PC71BM), carbon 70 (C70), carbon 60 single and many derivative (indene-C60monoadduct, be called for short ICMA), the isomeric compound of phenyl-carbon 71-caproic acid methyl ester ((6,6)-Phenyl-C71hexnoic acid methyl ester, mixture of isomers, be called for short PC71HM), 3,4,9,10-tetracarboxylic acid diimide (3,4,9,10-perylenetetracarboxylic acid diimide is called for short PTCDi), nitrogen, nitrogen-two (2,5-two tributyl benzene)-3,4,9,10-dicarboximide (N, N '-bis (2,5-di-tert-butylphenyl)-3,4,9,10-perylene-dicarboximide acid diimide is called for short PDCDT), and in the group that forms.
Consult Fig. 8, one second preferred embodiment for serial connection type organic electroluminescent module of the present invention, this second preferred embodiment is similar to this first preferred embodiment, and its difference is in this second preferred embodiment and comprises three electroluminors 4, and two charge generation bodies 5.
This two charge generation body 5 is folded in 4 of two adjacent electroluminors respectively, make 5 one-tenth series connection forms of these electroluminors 4 and these charge generation bodies, this anode 61 is connected in into the surface of these electroluminors 4 with the hole injection layer 421 of the electroluminor 4 of a wherein end of these charge generation bodies 5 of series connection form, and this negative electrode 62 is connected in into the surface of these electroluminors 4 with the electron injecting layer 431 of the electroluminor 4 of the wherein other end of these charge generation bodies 5 of series connection form.
When extraneous illumination is incident upon these charge generation bodies 5, each charge generation body 5 formation electron hole pair that is stimulated, wherein, electronics moves toward the direction of this anode 61, and enter the organic luminous layer 41 of the electroluminor 4 adjacent with this charge generation body 5, move toward the direction of this negative electrode 62 in the hole, and enter the organic luminous layer 41 of this electroluminor 4 adjacent with this charge generation body 5; Simultaneously, the come from the outside hole of drive current source 8 enters the organic luminous layer 41 of the electroluminor 4 adjacent with this anode 61 from this anode 61; The electronics of the drive current source that comes from the outside 8 enters the organic luminous layer 41 of the electroluminor 4 adjacent with this negative electrode 62 from this negative electrode 62.
The electroluminor that is connected with this anode 61 4 is accepted from the hole of anode 61 and electronics from this charge generation body 5, and be combined with this electronics in this hole and to discharge luminous energy also outwards luminous again; The electroluminor 4 that is positioned at 5 of two charge generation bodies is accepted the hole that forms from the charge generation body 5 near these anode 61 sides respectively, with the electronics that forms from the charge generation body 5 near these negative electrode 62 sides, be combined with this electronics in this hole and to discharge luminous energy also outwards luminous again; The electroluminor that is connected with this negative electrode 62 4 is accepted from the electronics of this negative electrode 62 and hole from this charge generation body 5, and be combined with this electronics in this hole and to discharge luminous energy also outwards luminous again.
When being connected in series under three electroluminors 4 and the predetermined drive voltages situation identical with this first preferred embodiment, because these charge generation body quantity are more, then the total amount in formed electronics and hole is more, so the light quantity that produces in conjunction with the back again in these organic luminous layers 41 in electron hole pair is bigger, and can obtain higher luminosity under the driving voltage of certain value; In other words, if need outwards send predetermined luminosity, driving voltage can more reduce.
Consult Fig. 9, it should be noted that, the electroluminor 4 of organic electroluminescent module of the present invention is not limited to two or three, and can comprise most electroluminors 4, and most the charge generation bodies 5 that are folded in 4 of two adjacent electroluminors, when these electroluminor numbers are n, and n 〉=2 o'clock, this charge generation body number is individual for being not more than (n-1), and preferably, this charge generation body number is that (n-1) is individual.And become these electroluminors 4 of series connection form and the electroluminor 4 of two end opposite for being electrically connected with this electrode unit 6 of these charge generation bodies 5.
Consult Figure 10, one the 3rd preferred embodiment for serial connection type organic electroluminescent module of the present invention, the 3rd preferred embodiment is similar to this first preferred embodiment, its difference is in the organic electroluminescent module of the 3rd preferred embodiment and also comprises a filter 7, and this matrix structure 3 comprises a substrate 31, and a film crystal tube drive circuit 32 that is arranged on this substrate 31.
The anode 61 of this film crystal tube drive circuit 32 and this electrode unit 6 is electrically connected with one of them of this negative electrode 62, and drives these electroluminor 4 starts, and controls these electroluminors 4 for conducting or close.In the 3rd embodiment, this anode 61 connects these matrix structures 3, and this negative electrode 62 be transparency electrode, and forms the organic electroluminescent module that an exiting surface is the last light emitting-type on these negative electrode 62 surfaces.
This substrate 31 of this matrix structure 3 can be glass substrate or flexible base plate, but not as limit, and wherein this substrate 31 can be transparent or opaque material.When this anode 61 connects these matrix structures 3, and this anode 61 is transparency electrode, and this substrate 31 in this matrix structure 3 forms an organic electroluminescent module that exiting surface is the following light emitting-type on these anode 61 surfaces when also being transparent material.When this negative electrode 62 connects these matrix structures 3, and this negative electrode 62 be transparency electrode, and this substrate 31 in this matrix structure 3 forms the following emission type organic electro luminescent module that an exiting surface is the type that is inverted on these negative electrode 62 surfaces when also being transparent material.When this negative electrode 62 connects these matrix structures 3, and this anode 61 forms the last emission type organic electro luminescent module that an exiting surface is the type that is inverted on these anode 61 surfaces when be transparency electrode.Moreover above-mentioned electrode can be conductive metal, oxidized metal or conducting polymer.
This filter 7 is arranged at the exiting surface top of these electroluminors 4, and the light that supplies these electroluminors 4 to send the tool predetermined wavelength range is passing the different mixed light of these filter 7 back one-tenth wave-length coverages and former light, and outwards luminous.In more detail, in the organic electroluminescent module of following light emitting-type, this filter 7 can be arranged at into these electroluminors 4 and these charge generation bodies 5 of series connection form, and between the film crystal tube drive circuit 32, in the organic electroluminescent module of last light emitting-type, this filter 7 can be arranged at on these electroluminors 4 and these charge generation bodies 5 of series connection form, and these electroluminors 4 that form the series connection form are arranged on the film crystal tube drive circuit 32 with these charge generation bodies 5.
What deserves to be mentioned is, if use the 3rd embodiment as display, can arrange most the 3rd preferred embodiments and form array pattern, cooperate the color filter of RGB or RGBW as this filter 7 again, can externally send the different mixed light of multi-wavelength's scope, and produce pre-fixing by these film crystal tube drive circuit 32 controls; Or also can change the luminescent material of the electroluminor 4 in these the 3rd preferred embodiments, and make its light that when accepting electronics and hole, can form different wavelength range, then also can omit the filter that changes optical wavelength range, and can save the cost of making filter.
In addition, because this charge generation body 5 can absorb the light that the external world exposes to this organic electroluminescent module, also can absorb from these electroluminors 4 and send light towards this charge generation body 5, so dazzle ratio of organic electroluminescent module of the present invention in the time of can reducing as display, and promote bright chamber contrast (ambient contrast ratio) significantly, organic electroluminescent module of the present invention is had under the situation of surround lighting, still do not influence the brightness that manifests and the image quality that presents.
In sum, the charge generation body 5 of serial connection type organic electroluminescent module of the present invention can produce electronics and hole when irradiation, and be added to electronics and the hole of the organic luminous layer 41 of these electroluminors 4, and can effectively increase luminous efficiency, and reduction driving voltage, and if with the present invention when the display applications, except reducing the driving voltage, because this charge generation body 5 can absorb extraneous light and the organic luminous layer 41 past light that are in reverse to this exiting surface, and effectively reduce the dazzle ratio of exiting surface, and promote the contrast of bright chamber, and then the quality of promoting display.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limiting the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; when can doing a little modification and perfect, so protection scope of the present invention is when with being as the criterion that claims were defined.
Claims (20)
1. serial connection type organic electroluminescent module, it is characterized in that: this serial connection type organic electroluminescent module comprises a plurality of electroluminors, at least one charge generation body, and electrode unit, each electroluminor comprises an organic luminous layer, this charge generation body produces the electron hole when irradiation, this charge generation body connects two adjacent electroluminors and makes described electroluminor become the series connection form with this charge generation body, this electrode unit comprises an anode and a negative electrode, this anode and this negative electrode respectively with the described electroluminor that becomes the series connection form and this charge generation body in be positioned at two end opposite two electroluminors be electrically connected.
2. serial connection type organic electroluminescent module as claimed in claim 1, it is characterized in that: this charge generation body is accepted electric energy and is produced the electron hole.
3. serial connection type organic electroluminescent module as claimed in claim 1 is characterized in that: these electroluminor numbers are n, n 〉=2, and this charge generation body number is that (n-1) is individual.
4. serial connection type organic electroluminescent module as claimed in claim 1 is characterized in that: this charge generation body comprises one deck near the n section bar bed of material of this anode-side, and one deck is near the p-type material layer of this cathode side.
5. serial connection type organic electroluminescent module as claimed in claim 4 is characterized in that: this p-type material layer and the n section bar bed of material are for absorbing the material of visible light.
6. serial connection type organic electroluminescent module as claimed in claim 4 is characterized in that: the material of this p-type material layer is to be selected from by by TiOPc, Phthalocyanine Zinc, nitrogen nitrogen-dimethyl-3,4,9,10-dicarboximide, ten hexafluoro copper benzene dimethylans, and in the group that forms.
7. serial connection type organic electroluminescent module as claimed in claim 4, it is characterized in that: the material of this n section bar bed of material is the isomeric compound, 3 that selects free carbon 60, phenyl-carbon 61-butyric acid methyl ester, 4,9, the isomeric compound, 3 of the isomeric compound of 10-tetrabasic carboxylic acid-bisbenzimidazole, phenyl-carbon 71-butyric acid methyl ester, carbon 70, carbon 60 lists and many derivatives, phenyl-carbon 71-caproic acid methyl ester, 4,9,10-tetracarboxylic acid diimide, nitrogen, nitrogen-two (2,5-, two tributyl benzene)-3,4,9,10-dicarboximide, and in the group that forms.
8. serial connection type organic electroluminescent module as claimed in claim 1, it is characterized in that: this serial connection type organic electroluminescent module also comprises a matrix structure, this matrix structure comprises a substrate, and a film crystal tube drive circuit that is arranged on this substrate, this anode is electrically connected with this film crystal tube drive circuit with one of them of this negative electrode.
9. serial connection type organic electroluminescent module as claimed in claim 8, it is characterized in that: this anode connects this matrix structure, and this anode is transparency electrode, and this substrate is transparent material.
10. serial connection type organic electroluminescent module as claimed in claim 8, it is characterized in that: this anode connects this matrix structure, and this negative electrode is transparency electrode.
11. serial connection type organic electroluminescent module as claimed in claim 8, it is characterized in that: this negative electrode connects this matrix structure, and this negative electrode is transparency electrode, and this substrate is transparent material.
12. serial connection type organic electroluminescent module as claimed in claim 8, it is characterized in that: this negative electrode connects this matrix structure, and this anode is transparency electrode.
13. serial connection type organic electroluminescent module as claimed in claim 8, it is characterized in that: this substrate is flexible material.
14. serial connection type organic electroluminescent module as claimed in claim 1 is characterized in that: this serial connection type organic electroluminescent module also comprises a filter, and this filter is arranged at the exiting surface of this serial connection type organic electroluminescent module.
15. serial connection type organic electroluminescent module as claimed in claim 1, it is characterized in that: described electroluminor comprises that also connects the wherein hole delivery unit on a surface of this organic luminous layer, and one connects this organic luminous layer another surperficial electronics delivery unit wherein.
16. serial connection type organic electroluminescent module as claimed in claim 15, it is characterized in that: this hole delivery unit has the hole transmission layer that one deck connects this organic luminous layer, and one deck connects the hole injection layer of this hole transmission layer, this electronics delivery unit has the electron transfer layer that one deck connects this organic luminous layer, and one deck connects the electron injecting layer of this electron transfer layer.
17. serial connection type organic electroluminescent module, it is characterized in that: this serial connection type organic electroluminescent module comprises a plurality of electroluminors, at least one charge generation body, and electrode unit, each electroluminor comprises that one deck produces the organic luminous layer of light when accepting electronics and hole, this charge generation body comprises one deck n section bar bed of material and one deck p-type material layer, this charge generation body connects two adjacent electroluminors and makes described electroluminor become the series connection form with this charge generation body, this p-type material layer and the n section bar bed of material are for absorbing the material of visible light, this electrode unit comprises an anode and a negative electrode, this anode and this negative electrode respectively with the described electroluminor that becomes the series connection form and this charge generation body in be positioned at two end opposite two electroluminors be electrically connected.
18. serial connection type organic electroluminescent module as claimed in claim 17 is characterized in that: this charge generation body produces the electron hole when irradiation.
19. serial connection type organic electroluminescent module as claimed in claim 18 is characterized in that: the material of this p-type material layer is to be selected from by TiOPc, Phthalocyanine Zinc, nitrogen nitrogen-dimethyl-3,4,9,10-dicarboximide, ten hexafluoro copper benzene dimethylans, and in the group that forms.
20. serial connection type organic electroluminescent module as claimed in claim 18, it is characterized in that: the material of this n section bar bed of material is the isomeric compound, 3 that selects free carbon 60, phenyl-carbon 61-butyric acid methyl ester, 4,9, the isomeric compound, 3 of the isomeric compound of 10-tetrabasic carboxylic acid-bisbenzimidazole, phenyl-carbon 71-butyric acid methyl ester, carbon 70, carbon 60 lists and many derivatives, phenyl-carbon 71-caproic acid methyl ester, 4,9,10-tetracarboxylic acid diimide, nitrogen, nitrogen-two (2,5-, two tributyl benzene)-3,4,9,10-dicarboximide, and in the group that forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100548430A CN103296220A (en) | 2012-03-02 | 2012-03-02 | Series-connection-type organic electroluminescence module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100548430A CN103296220A (en) | 2012-03-02 | 2012-03-02 | Series-connection-type organic electroluminescence module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103296220A true CN103296220A (en) | 2013-09-11 |
Family
ID=49096786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100548430A Pending CN103296220A (en) | 2012-03-02 | 2012-03-02 | Series-connection-type organic electroluminescence module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103296220A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107267138A (en) * | 2016-04-08 | 2017-10-20 | 三星显示有限公司 | Organic light emitting apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010009351A1 (en) * | 1999-04-30 | 2001-07-26 | Idemitsu Kosan Co., Ltd. | Organic electroluminescence element and manufacturing method thereof |
| CN101006594A (en) * | 2004-08-20 | 2007-07-25 | 伊斯曼柯达公司 | White OLED having multiple white electroluminescent units |
| CN101447555A (en) * | 2008-12-29 | 2009-06-03 | 中国科学院长春应用化学研究所 | Laminated organic electro-luminescent device of an organic semiconductor-based hetero-junction electric-charge generating layer taken as a connecting layer and preparation method thereof |
-
2012
- 2012-03-02 CN CN2012100548430A patent/CN103296220A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010009351A1 (en) * | 1999-04-30 | 2001-07-26 | Idemitsu Kosan Co., Ltd. | Organic electroluminescence element and manufacturing method thereof |
| CN101006594A (en) * | 2004-08-20 | 2007-07-25 | 伊斯曼柯达公司 | White OLED having multiple white electroluminescent units |
| CN101447555A (en) * | 2008-12-29 | 2009-06-03 | 中国科学院长春应用化学研究所 | Laminated organic electro-luminescent device of an organic semiconductor-based hetero-junction electric-charge generating layer taken as a connecting layer and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107267138A (en) * | 2016-04-08 | 2017-10-20 | 三星显示有限公司 | Organic light emitting apparatus |
| CN107267138B (en) * | 2016-04-08 | 2022-04-26 | 三星显示有限公司 | Organic light emitting device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1974590B1 (en) | Oled having stacked organic light-emitting units | |
| TWI513076B (en) | Organic light emitting diode (oled) device | |
| CN100527464C (en) | Organic devices, organic electroluminescent devices and organic solar cells | |
| TWI270225B (en) | Organic semiconductor element | |
| JP2021120953A (en) | Light-emitting panel and display apparatus | |
| CN100483728C (en) | Organic electroluminescent device of electroluminescent unit with lamina | |
| JP6108664B2 (en) | Organic EL device | |
| JP2019061973A (en) | Light-emitting device | |
| KR102081123B1 (en) | Organic light emitting display | |
| EP1571709A2 (en) | Organic electroluminescencent devices | |
| US20070024188A1 (en) | Organic light emitting device and manufacturing method thereof | |
| US9269750B2 (en) | Organic light-emitting device | |
| CN105210206A (en) | Organic light-emitting device and method of manufacturing same | |
| WO2018196122A1 (en) | Charge generation layer, stacked oled device, and display screen | |
| KR20130006937A (en) | Organic light emitting element | |
| KR20140059713A (en) | Organic light emitting display | |
| CN100431195C (en) | Organic lighting element | |
| CN102362552A (en) | Organic el element | |
| CN107665956A (en) | Organic light emitting apparatus and the OLED using organic light emitting apparatus | |
| CN107195793A (en) | A kind of white light organic electroluminescent device and corresponding display panel | |
| US20130228757A1 (en) | Series-connected organic electroluminescent module and display device including the same | |
| KR20040044066A (en) | Organic Electroluminescence Device And Light-Emitting Apparatus | |
| CN103296220A (en) | Series-connection-type organic electroluminescence module | |
| KR102081122B1 (en) | Organic light emitting display | |
| US10411214B2 (en) | Light emitting device, display device, and electronic 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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130911 |