CN103682117B - A kind of organic light emission lighting device - Google Patents
A kind of organic light emission lighting device Download PDFInfo
- Publication number
- CN103682117B CN103682117B CN201310752715.8A CN201310752715A CN103682117B CN 103682117 B CN103682117 B CN 103682117B CN 201310752715 A CN201310752715 A CN 201310752715A CN 103682117 B CN103682117 B CN 103682117B
- Authority
- CN
- China
- Prior art keywords
- layer
- organic light
- light emission
- lighting device
- electrode
- 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.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
- H10K50/125—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers specially adapted for multicolour light emission, e.g. for emitting white light
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/14—Carrier transporting layers
- H10K50/15—Hole transporting layers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/14—Carrier transporting layers
- H10K50/16—Electron transporting layers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K2101/00—Properties of the organic materials covered by group H10K85/00
Abstract
Organic light emission lighting device of the present invention, including first electrode layer, luminescent layer, the second electrode lay, successively decrease successively along the energy gap away from first electrode direction, each luminescent layer；When driving DC voltage is relatively low, the small luminescent layer luminous intensity of energy gap is big, and with the rise of driving voltage, the larger luminescent layer luminous intensity of energy gap gradually strengthens.With the rise of driving voltage, because the carrier mobility of electron transfer layer is more than the carrier mobility of hole transmission layer so that the complex centre in electronics and hole is close to hole transmission layer side so that glow color changes.Organic light emission lighting device is driven using pulse voltage, the regulation of color and brightness can be achieved by the amplitude and time that adjust pulse voltage.And on the basis of the device architecture of existing organic light emission lighting device, the adjustable of glow color just can be realized without increasing functional layer and preparation technology, not only preparation technology is simple but also light transmittance is high.
Description
Technical field
The present invention relates to field of organic electroluminescence, and in particular to a kind of organic light emission lighting device of Color tunable.
Background technology
Organic light emitting apparatus（English full name is Organic Light Emitting Device, referred to as OLED）As
Lighting engineering of future generation, has the advantages that face luminous, low heat emission, low energy consumption, light, thin.Importantly, China illuminates use every year
Electricity is about 600,000,000,000 degree, accounts for the 12% of national annual electricity, 5.98 hundred million tons of carbon dioxide of annual illumination discharge.According to OLED
Lighting engineering replace existing lighting engineering, every year can 400,000,000,000 degree of using electricity wisely, reduction 3.99 hundred million tons of CO2 emission, have
Important application value.
In the prior art, monochromatic illumination is used organic light emission lighting device, to realize that illuminating color is adjustable more, it will usually
It is achieved using the Organic Light Emitting Diode for stacking multiple different glow colors.In the structure shown here, adjacent organic light-emitting diodes
Need to set charge generation layer between the adjacent electrode of pipe, and the electrode of Organic Light Emitting Diode also needs to be connected to outside,
Structure and preparation technology are complicated.In addition, the electrode of Organic Light Emitting Diode must possess the high grade of transparency and low sheet resistance, so
And, both is conflicting demand；Therefore, half-way house is generally used in the prior art so that transparency and electric conductivity
Can all it be short of, it is difficult to realize large area Color tunable organic light emission lighting device.
Therefore, a kind of electroluminescent device is disclosed in Chinese patent literature CN102414858A, including substrate, two electricity
Pole and lamination, the lamination include at least two Electroluminescent emissives and be arranged at least two adjacent Electroluminescent emissives it
Between at least one interlayer, wherein Electroluminescent emissive include electroluminescent molecules, wherein interlayer is undoped interlayer and tool
Having allows the thickness to form interface zone, the interface zone be included at least two Electroluminescent emissives each in deposit
Electroluminescent molecules.When driving the electroluminescent device, it is assumed that the hole mobility of interlayer is better than electron mobility,
That is, hole is transmitted with higher speed in interlayer；At the lower voltage, the electroluminescence layer only close to negative electrode lights, with electricity
The increase of pressure, influence of the electric field to electron mobility is bigger than hole mobility, and electronics is bigger than the transmission speed in hole so that lean on
The electroluminescence layer of nearly anode starts to light；The glow color of multiple Organic Light Emitting Diodes is overlapped, and realizes glow color
It is adjustable with brightness.But, the electroluminescent device is at least provided with an interlayer between emission layer, and preparation technology is complicated.
The content of the invention
Therefore, to be solved by this invention is that the el light emitting device preparation technology of Color tunable in the prior art is answered
Miscellaneous the problem of, there is provided a kind of simple Color tunable organic light emission lighting device of preparation technology.
In order to solve the above technical problems, the technical solution adopted by the present invention is as follows：
A kind of organic light emission lighting device of the present invention, including first electrode layer and the second electrode lay, described first
At least two luminescent layers are provided between electrode layer and the second electrode lay, along remote first electrode direction, each luminescent layer
Energy gap is successively decreased successively；Hole transmission layer, the second electrode are provided between the first electrode layer and the luminescent layer
Electron transfer layer is provided between layer and the luminescent layer.
The carrier mobility of the electron transfer layer is more than the carrier mobility of the hole transmission layer.
The first electrode layer and/or the second electrode lay are transparent or semitransparent film layer.
The glow color of each luminescent layer is different from each other.
The work function of the first electrode layer is higher than the work function of the second electrode lay.
Be additionally provided with hole injection layer between the first electrode layer and the hole transmission layer, the second electrode lay with
Electron injecting layer is additionally provided between the electron transfer layer.
The organic light emission lighting device is driven by pulse voltage.
The waveform of the pulse voltage is combination one or more in square wave, sawtooth waveforms, sine wave.
The frequency of the pulse voltage is more than 25HZ.
The above-mentioned technical proposal of the present invention has advantages below compared with prior art：
Organic light emission lighting device of the present invention, including first electrode layer and the second electrode lay, the first electrode
At least two luminescent layers are provided between layer and the second electrode lay, along away from first electrode direction, the forbidden band of each luminescent layer
Width successively decreases successively, when driving DC voltage is relatively low, and the small luminescent layer luminous intensity of energy gap is big, with driving voltage
Rise, the larger luminescent layer luminous intensity of energy gap gradually strengthens.Under low driving voltage, the electron transfer layer and described
Influence of the carrier mobility of hole transmission layer to the organic light emission lighting device be not obvious；With the liter of driving voltage
Height, because the carrier mobility of the electron transfer layer is more than the carrier mobility of the hole transmission layer so that electronics
Complex centre with hole is close to hole transmission layer side so that glow color changes.Therefore, according to the principle of three primary colours
Time mixing color method, the organic light emission lighting device is driven using pulse voltage, by adjust pulse voltage amplitude and when
Between the regulation of the organic light emission lighting device color and brightness can be achieved.And the organic light emission lighting device is existing
On the basis of the device architecture of organic light emission lighting device, glow color just can be realized without increasing functional layer and preparation technology
Adjustable, not only preparation technology is simple but also light transmittance is high.
Brief description of the drawings
In order that present disclosure is more likely to be clearly understood, specific embodiment and combination below according to the present invention
Accompanying drawing, the present invention is further detailed explanation, wherein
Fig. 1 is the structural representation of organic light emission lighting device described in the embodiment of the present invention 1；
Fig. 2 is the spectrogram under different driving voltage of organic light emission lighting device described in the embodiment of the present invention 1；
Fig. 3 is the chromaticity coordinates figure under different driving voltage of organic light emission lighting device described in the embodiment of the present invention 1；
Fig. 4 is the luminance graph under different driving voltage of organic light emission lighting device described in the embodiment of the present invention 1；
Fig. 5 is the driving voltage scheme of organic light emission lighting device described in the embodiment of the present invention 1；
Fig. 6 is organic light emission lighting device described in the embodiment of the present invention 1 in pulse voltage（VL=0）Lower chromaticity coordinates figure
（CIE-x）；
Fig. 7 is organic light emission lighting device described in the embodiment of the present invention 1 in pulse voltage（VL=0）Lower chromaticity coordinates figure
（CIE-y）；
Fig. 8 is organic light emission lighting device described in the embodiment of the present invention 1 in pulse voltage（VL=0）Lower luminance graph；
Fig. 9 is organic light emission lighting device described in the embodiment of the present invention 1 in pulse voltage（VL＞ 0）Lower chromaticity coordinates figure
（CIE-x, CIE-y）；
Figure 10 is organic light emission lighting device described in the embodiment of the present invention 1 in pulse voltage（VL＞ 0）Lower luminance graph.
Embodiment
In order that the object, technical solutions and advantages of the present invention are clearer, below in conjunction with reality of the accompanying drawing to the present invention
The mode of applying is described in further detail.
The present invention can be embodied in many different forms, and should not be construed as limited to embodiment set forth herein.
Opposite there is provided these embodiments so that the disclosure will be thorough and complete, and the design of the present invention will be fully conveyed to
Those skilled in the art, the present invention will only be defined by the appended claims.In the accompanying drawings, for clarity, Ceng He areas can be exaggerated
The size and relative size in domain.
Embodiment 1
The present embodiment provides a kind of organic light emission lighting device, as shown in figure 1, including first electrode layer and second electrode
Layer, stack gradually in the first electrode layer be provided with hole injection layer, hole transmission layer, the first luminescent layer, the second luminescent layer,
Electron transfer layer, electron injecting layer and the second electrode lay, along away from first electrode direction, the energy gap of each luminescent layer
Successively decrease successively, the energy gap of first luminescent layer is 2.65eV, and the energy gap of second luminescent layer is 2.18eV.
The concrete structure of the organic light emission lighting device is：
ITO（180nm）/HAT-CN（5nm）/NPB（30nm）/Bepp2(10nm):BD(4%)/TCTA（12nm）:Bepp2
（100%）:TBRb（3%）/DPyPA（15nm）/LiF（0.5nm）/Al（150nm）.
Wherein, ITO（Indium tin oxide）Layer is first electrode layer；HAT-CN layers are hole injection layer；NPB layers are that hole is passed
Defeated layer；Material of main part Bepp2 and guest materials BD, which adulterates, constitutes the first luminescent layer of transmitting blue light；Material of main part TCTA, Bepp2
Adulterated with guest materials TBRb and constitute the second luminescent layer of transmitting orange light；DPyPA layers are electron transfer layer；LiF layers are electronics
Implanted layer；Al layers are the second electrode lay；Each layer preparation method is compared with technology in the organic light emission lighting device.
It is 1.0 × 10 as the carrier mobility of the DPyPA layers of the present embodiment electron transfer layer-3cm2/ Vs, hole
The carrier mobility that NPB layers of transport layer is 1.63 × 10-5cm2/V·s。
As the other embodiment of the present invention, the hole mobility of the hole transport layer material is 10-5~10-4cm2/
Between Vs, NPB, TCTA, TAPC, CBP etc. are selected from, but not limited to,；The electron mobility of the electron transport layer materials is 10-4
~10-3cm2/ Vs, is selected from, but not limited to, Bepp2, Bebq2, Bphen, DPyPA, Tm3PyPb etc., can realize the present invention
Purpose, belong to protection scope of the present invention.
Organic light emission lighting device spectrogram, chromaticity coordinates figure and the luminance graph under different direct voltage drives point
Not as shown in Figure 2, Figure 3, Figure 4.
As shown in Fig. 2 the organic light emission lighting device there are two emission peaks of 460nm and 575nm, the first hair is corresponded to respectively
Photosphere and the second luminescent layer.Under different driving DC voltages, the emissive porwer of the first luminescent layer is constant, the second luminescent layer
Emissive porwer is gradually reduced with the rise of driving voltage.In the present embodiment, the first electrode layer is euphotic electrode, described
Second electrode is reflecting electrode, and the energy gap of first luminescent layer is more than the energy gap of second luminescent layer.When straight
When stream driving voltage is relatively low, the second small luminescent layer luminous intensity of energy gap is big, with the rise of driving voltage, energy gap
The first larger luminescent layer luminous intensity gradually strengthens.Under low driving voltage, the electron transfer layer and the hole transport
Influence of the carrier mobility of layer to the organic light emission lighting device be not obvious（That is the first luminescent layer is in low-voltage in Fig. 2
Under driving, luminous intensity is constant）；With the rise of driving voltage, because the carrier mobility of the electron transfer layer is more than
The carrier mobility of the hole transmission layer so that the complex centre in electronics and hole is close to hole transmission layer side, makes
Glow color is obtained to change.
With the rise of driving voltage it can be seen from data in Fig. 2, the glow color of the organic light emission lighting device
Gradually change；The change of specific chromaticity coordinates can be as seen from Figure 3.
The brightness of the organic light emission lighting device is with the rise of voltage it can be seen from the test data in Fig. 4
Rise.
As shown in figure 5, driving the organic light emission lighting device by square wave pulse voltage；Dutycycle D=T1/（T1+
T2）；It is DC voltage V as D=0HChromaticity coordinates and brightness during driving；During D=1, device is closed.Due to human eye
Visual lag sensing speed be >=40ms, so the frequency of the pulse voltage needs to be more than 25HZ, preferably greater than or equal to
50Hz and less than or equal to 4KHz, the present embodiment is more preferably higher than equal to 1KHz and less than or equal to 2KHz.
Work as VLDuring=0V, fixed VH, as shown in Figure 6 and Figure 7, regulation dutycycle D=T1/（T1+T2）, the organic light emission photograph
The chromaticity coordinates of bright device（CIE-x, CIE-y）Do not change with the change of D and voltage.
As shown in figure 8, the brightness of the organic light emission lighting device reduces with D increase.
, can be by adjusting V in the case of brightness identicalHThe tune of the organic light emission lighting device color is realized with D
Section；In the case of color identical, pass through fixed VH, only by dutycycle D regulation, just can show that the organic light emission shines
The brightness regulation of bright device.
Work as VL>During 0V, with VLExemplified by=4.5V, as shown in Figure 9 and Figure 10, the chromaticity coordinates of the organic light emission lighting device and
Brightness is to dutycycle D and VHUniform dependence is, it is necessary to adjust V simultaneouslyHIt could be realized to the organic light emission lighting device with D
Chromaticity coordinates and brightness regulation.
As D=0, VH=VL, with VHConstant pressure drives；As D=1, VH=VL, with VLConstant pressure drives.
To sum up, VLDuring ＞ 0V, by changing VL、VHWith D collocation, can equally realize fixed chromaticity coordinates, change described in have
The brightness of machine litillumination devices；Or brightness is fixed, change the chromaticity coordinates of the organic light emission lighting device.
Organic light emission lighting device described in the present embodiment, the organic light emission lighting device is driven using pulse voltage,
The regulation of the organic light emission lighting device color and brightness can be achieved by the amplitude and time that adjust pulse voltage.And
The organic light emission lighting device is on the basis of the device architecture of existing organic light emission lighting device, without increasing other functional layers
And preparation technology just can realize the adjustable of glow color, not only preparation technology is simple but also light transmittance is high.
Embodiment 2
The present embodiment provides a kind of organic light emission lighting device, including first electrode layer and the second electrode lay, described first
Stacked gradually on electrode layer be provided with hole injection layer, hole transmission layer, the first luminescent layer, bipolarity barrier layer, second light
Layer, electron transfer layer, electron injecting layer and the second electrode lay, along away from first electrode direction, the forbidden band of each luminescent layer
Width successively decreases successively, and the energy gap of first luminescent layer is 2.65eV, and the energy gap of second luminescent layer is
2.21eV。
The concrete structure of the organic light emission lighting device is：
ITO（180nm）/HAT-CN（5nm）/NPB（30nm）/Bepp2(10nm):BD(4%)/TCTA（4nm）:Bepp2
（100%）/TCTA（12nm）:PO-01（10%）/DPyPA（15nm）/LiF（0.5nm）/Al（150nm）.
Wherein, ITO（Indium tin oxide）Layer is first electrode layer；HAT-CN layers are hole injection layer；NPB layers are that hole is passed
Defeated layer；Material of main part Bepp2 and guest materials BD, which adulterates, constitutes the first luminescent layer of transmitting blue light；Material of main part TCTA and
Bepp2 adulterates to form bipolarity barrier layer；Material of main part TCTA and guest materials PO-01, which adulterates, constitutes the second of transmitting orange light
Luminescent layer；DPyPA layers are electron transfer layer；LiF layers are electron injecting layer；Al layers are the second electrode lay；The organic light emission shines
Each layer preparation method is compared with technology in bright device.
In the present embodiment, first luminescent layer is that fluorescent light-emitting layer, second luminescent layer are phosphorescence luminescent layer, in order to
Prevent the triplet excitons of phosphorescence doping in second luminescent layer are diffused into first luminescent layer from producing Exciton quenching, it is special
One layer of bipolarity barrier layer is set between first luminescent layer and second luminescent layer, shone improving the organic light emission
While bright unit efficiency, the life-span of device is improved.
Embodiment 3
The present embodiment provides a kind of organic light emission lighting device, including first electrode layer and the second electrode lay, described first
Stacked gradually on electrode layer be provided with hole injection layer, hole transmission layer, the first luminescent layer, bipolarity barrier layer, second light
Layer, electron transfer layer, electron injecting layer and the second electrode lay, along away from first electrode direction, the forbidden band of each luminescent layer
Width successively decreases successively, and the energy gap of first luminescent layer is 2.65eV, and the energy gap of second luminescent layer is
2.15eV。
The concrete structure of the organic light emission lighting device is：
ITO（180nm）/HAT-CN（5nm）/NPB（30nm）/Bepp2(10nm):BD(4%)/TCTA（4nm）:Bepp2
（100%）/TCTA（12nm）:Ir(ppy)3（15%）:Ir(piq)3（1%）/DPyPA（15nm）/LiF（0.5nm）/Al（150nm）.
Wherein, ITO（Indium tin oxide）Layer is first electrode layer；HAT-CN layers are hole injection layer；NPB layers are that hole is passed
Defeated layer；Material of main part Bepp2 and guest materials BD, which adulterates, constitutes the first luminescent layer of transmitting blue light；Material of main part TCTA and
Bepp2 adulterates to form bipolarity barrier layer；Material of main part TCTA and guest materials Ir (ppy)3、Ir(piq)3Doping constitutes transmitting
Second luminescent layer of orange light；DPyPA layers are electron transfer layer；LiF layers are electron injecting layer；Al layers are the second electrode lay；Institute
Each layer preparation method is stated in organic light emission lighting device compared with technology.
Equally, in the present embodiment, first luminescent layer is that fluorescent light-emitting layer, second luminescent layer are that phosphorescence lights
Layer, exciton is produced in order to prevent the triplet excitons of phosphorescence doping in second luminescent layer to be diffused into first luminescent layer
It is quenched, spy sets one layer of bipolarity barrier layer between first luminescent layer and second luminescent layer, has described in raising
While machine litillumination devices efficiency, the life-span of device is improved.
Embodiment 4
The present embodiment provides a kind of organic light emission lighting device, including first electrode layer and the second electrode lay, described first
Stacked gradually on electrode layer be provided with hole injection layer, hole transmission layer, the first luminescent layer, the second luminescent layer, electron transfer layer,
Electron injecting layer and the second electrode lay, successively decrease successively along the energy gap away from first electrode direction, each luminescent layer, institute
The energy gap for stating the first luminescent layer is 2.60eV, and the energy gap of second luminescent layer is 2.21eV.
The concrete structure of the organic light emission lighting device is：
ITO（180nm）/HAT-CN（5nm）/CBP（30nm）/CBP（30nm）:Firpic(10%)/CBP（12nm）:PO-
01（10%）/Tm3PyPb（15nm）/LiF（0.5nm）/Al（150nm）.
Wherein, ITO（Indium tin oxide）Layer is first electrode layer；HAT-CN layers are hole injection layer；CBP layers are that hole is passed
Defeated layer；Material of main part CBP and guest materials Firpic, which adulterates, constitutes the first luminescent layer of transmitting blue emitting phosphor；Material of main part CBP
Adulterated with guest materials PO-01 and constitute the second luminescent layer of transmitting orange light；Tm3PyPb layers are electron transfer layer；LiF layers are electricity
Sub- implanted layer；Al layers are the second electrode lay；Each layer preparation method is compared with technology in the organic light emission lighting device.
The structural formula of material used is in above-described embodiment：
Above-mentioned material is made all in accordance with prior art by testing synthesis.
Obviously, above-described embodiment is only intended to clearly illustrate example, and the not restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among changing still in protection scope of the present invention.
Claims (7)
1. a kind of organic light emission lighting device, including first electrode layer and the second electrode lay, it is characterised in that the first electrode
At least two luminescent layers are provided between layer and the second electrode lay, along away from first electrode direction, the forbidden band of each luminescent layer
Width successively decreases successively；Be provided with hole transmission layer between the first electrode layer and the luminescent layer, the second electrode lay with
Electron transfer layer is provided between the luminescent layer；The carrier mobility of the electron transfer layer is more than the hole transmission layer
Carrier mobility；The organic light emission lighting device is driven by pulse voltage.
2. organic light emission lighting device according to claim 1, it is characterised in that the first electrode layer and/or described
The second electrode lay is transparent or semitransparent film layer.
3. organic light emission lighting device according to claim 1, it is characterised in that the glow color of each luminescent layer that
This is different.
4. organic light emission lighting device according to claim 1, it is characterised in that the work function of the first electrode layer is high
In the work function of the second electrode lay.
5. organic light emission lighting device according to claim 1, it is characterised in that the first electrode layer and the hole
Hole injection layer is additionally provided between transport layer, electronics note is additionally provided between the second electrode lay and the electron transfer layer
Enter layer.
6. organic light emission lighting device according to claim 1, it is characterised in that the waveform of the pulse voltage is rectangle
One or more combination in ripple, sawtooth waveforms, sine wave.
7. organic light emission lighting device according to claim 1, it is characterised in that the frequency of the pulse voltage is more than
25HZ。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310752715.8A CN103682117B (en) | 2013-12-31 | 2013-12-31 | A kind of organic light emission lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310752715.8A CN103682117B (en) | 2013-12-31 | 2013-12-31 | A kind of organic light emission lighting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103682117A CN103682117A (en) | 2014-03-26 |
| CN103682117B true CN103682117B (en) | 2017-10-27 |
Family
ID=50318983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310752715.8A Active CN103682117B (en) | 2013-12-31 | 2013-12-31 | A kind of organic light emission lighting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103682117B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106255277A (en) * | 2016-09-30 | 2016-12-21 | 福州大学 | The method improving OLED luminous efficiency based on drive circuit |
| CN109244255A (en) * | 2018-07-31 | 2019-01-18 | 华南理工大学 | Organic planar heterojunction white light parts and its dimmer application suitable for pulsed drive |
| CN109686853B (en) * | 2018-12-26 | 2020-12-01 | 上海晶合光电科技有限公司 | Color-adjustable organic electroluminescent device |
| CN111554819B (en) * | 2020-04-27 | 2023-06-23 | 南方科技大学 | Light-emitting device, light-emitting color adjusting method thereof and display device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1729725A (en) * | 2002-11-18 | 2006-02-01 | 出光兴产株式会社 | Organic electroluminescent element |
| CN201466065U (en) * | 2009-06-19 | 2010-05-12 | 深圳大学 | Organic electroluminescent device |
| CN102414858A (en) * | 2009-05-05 | 2012-04-11 | 皇家飞利浦电子股份有限公司 | Electroluminescent device |
-
2013
- 2013-12-31 CN CN201310752715.8A patent/CN103682117B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1729725A (en) * | 2002-11-18 | 2006-02-01 | 出光兴产株式会社 | Organic electroluminescent element |
| CN102414858A (en) * | 2009-05-05 | 2012-04-11 | 皇家飞利浦电子股份有限公司 | Electroluminescent device |
| CN201466065U (en) * | 2009-06-19 | 2010-05-12 | 深圳大学 | Organic electroluminescent device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103682117A (en) | 2014-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102456847B (en) | White organic light emitting device | |
| US9224967B2 (en) | White organic light emitting device | |
| CN102097455B (en) | Oled device | |
| CN105449109B (en) | Organic electroluminescence device of simulated solar irradiation and preparation method thereof | |
| CN106784358A (en) | A kind of white light organic electroluminescent device | |
| CN103682117B (en) | A kind of organic light emission lighting device | |
| CN108011047A (en) | A kind of glow organic electroluminescent device | |
| CN107863445A (en) | A kind of white light OLED device with exchange driving | |
| CN103227294B (en) | A kind of red green phosphorescent OLED device and manufacture method thereof | |
| CN108963093A (en) | Organic electroluminescence device and Organnic electroluminescent device | |
| CN108123050A (en) | A kind of white light OLED device with exchange driving | |
| CN108269937A (en) | A kind of hydridization white light organic electroluminescent device of efficient high color rendering index (CRI) | |
| CN106992256A (en) | A kind of white color organic electroluminescence device | |
| CN101859879A (en) | White organic electroluminescent device and preparation method thereof | |
| CN203596354U (en) | Organic electroluminescence diode parallel connected structure mode composite lighting device | |
| CN102208552A (en) | White-light organic electroluminescent device and preparation method thereof | |
| CN108963109A (en) | A kind of Organnic electroluminescent device | |
| CN102779950A (en) | Organic LED (light-emitting diode) | |
| CN110246976A (en) | A kind of blue green light prepares white light organic electroluminescent device | |
| CN105609653A (en) | White-light OLED device and preparation method thereof | |
| CN109346500A (en) | A kind of Organnic electroluminescent device | |
| CN108321302A (en) | A kind of hydridization white light organic electroluminescent device of efficient stable | |
| CN104078604A (en) | White organic light-emitting diode and manufacturing method thereof | |
| CN203232913U (en) | Red and green phosphorescent organic electroluminescent device | |
| CN104078611A (en) | White organic light-emitting diode and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |