CN109585524A - A kind of lighting device and preparation method thereof - Google Patents
A kind of lighting device and preparation method thereof Download PDFInfo
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- CN109585524A CN109585524A CN201910009024.6A CN201910009024A CN109585524A CN 109585524 A CN109585524 A CN 109585524A CN 201910009024 A CN201910009024 A CN 201910009024A CN 109585524 A CN109585524 A CN 109585524A
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- layer
- electrochromic
- organic electroluminescence
- light
- electroluminescence device
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/50—OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/141—Light emitting diodes [LED]
- F21S41/155—Surface emitters, e.g. organic light emitting diodes [OLED]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
- F21S41/63—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates
- F21S41/64—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by changing their light transmissivity, e.g. by liquid crystal or electrochromic devices
- F21S41/645—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by changing their light transmissivity, e.g. by liquid crystal or electrochromic devices by electro-optic means, e.g. liquid crystal or electrochromic devices
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/15—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on an electrochromic effect
- G02F1/153—Constructional details
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/15—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on an electrochromic effect
- G02F1/153—Constructional details
- G02F1/157—Structural association of cells with optical devices, e.g. reflectors or illuminating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
- F21Y2115/15—Organic light-emitting diodes [OLED]
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The present invention relates to lighting technical fields more particularly to a kind of lighting device and preparation method thereof.To extend service life of the organic electroluminescence device as light source when.The embodiment of the present invention provides a kind of lighting device, including substrate, and the organic electroluminescence device of setting over the substrate；Further include: the light-emitting surface side of the organic electroluminescence device, and the contact surface mutually insulated of the electrochromic device and the organic electroluminescence device is arranged in electrochromic device, the electrochromic layer；The electrochromic device includes electrochromic layer, and the electrochromic layer covers the light-emitting surface of the organic electroluminescence device；Light penetration of the electrochromic device when being powered is less than light penetration of the electrochromic device in no power when.
Description
Technical field
Originally it is related to lighting technical field more particularly to a kind of lighting device and preparation method thereof.
Background technique
OLED (Organic Light-Emitting Diode, Organic Light Emitting Diode) have the advantages that it is self luminous and by
Applied to lighting area, such as the OLED car light occurred at present, exactly automotive system is realized using OLED device as light source
Illumination.
Summary of the invention
It is a primary object of the present invention to provide a kind of lighting device and preparation method thereof, to extend organic electroluminescence hair
Optical device is used as service life when light source.
In order to achieve the above objectives, the present invention adopts the following technical scheme:
On the one hand, the embodiment of the present invention provides a kind of lighting device, including substrate, and setting having over the substrate
Organic electroluminescence devices；Further include: the organic electroluminescence device is arranged in electrochromic device, the electrochromic layer
Light-emitting surface side, and the contact surface mutually insulated of the electrochromic device and the organic electroluminescence device；It is described electroluminescent
Electrochromic device includes electrochromic layer, and the electrochromic layer covers the light-emitting surface of the organic electroluminescence device；It is described
Light penetration of the electrochromic device when being powered is less than light penetration of the electrochromic device in no power when.
Optionally, color of the electrochromic device when being powered is black.
Optionally, the electrochromic device further includes the first transparent electricity being stacked in the electrochromic layer two sides
Pole and second transparency electrode.
Optionally, the material of the electrochromic layer includes yttrium oxide.
Optionally, the organic electroluminescence device includes anode, luminescent layer and the yin set gradually over the substrate
The light direction of pole, the organic electroluminescence device is directed toward cathode by anode；The electrochromic device setting has described
Side of the organic electroluminescence devices far from the substrate.
Optionally, the luminescent layer includes the blue light-emitting, red light luminescent layer and green light emitting layer being stacked；And
Charge transporting material between every adjacent two layers is set.
Optionally, the organic electroluminescence device further includes the hole being arranged between the luminescent layer and the anode
Implanted layer, and the electron injecting layer being arranged between the luminescent layer and the cathode.
Optionally, the hole injection layer further includes hole mobile material, and the electron injecting layer further includes electron-transport
Material；Alternatively,
The organic electroluminescence device further includes that the hole being arranged between the hole injection layer and the anode passes
Defeated layer, and the electron transfer layer being arranged between the electron injecting layer and the cathode.
Optionally, the lighting device is car light.
On the other hand, the embodiment of the present invention provides a kind of production method of lighting device, comprising: is formed on the substrate organic
Electroluminescent device；In the fixed electrochromic device in the light-emitting surface side of the organic electroluminescence device, the electrochromism
The contact surface mutually insulated of device and the organic electroluminescence device；The electroluminescent device includes electroluminescence layer, institute
State the light-emitting surface that electroluminescence layer covers the organic electroluminescence device；Light of the electrochromic device when being powered is saturating
Rate is crossed less than light penetration of the electrochromic device in no power.
The embodiment of the present invention provides a kind of lighting device and preparation method thereof, by by organic electroluminescence device and electroluminescent
Electrochromic device is combined together, and using electrochromic device, when being powered, color changes, and becomes so that light penetration shines
The characteristics of change, since the light-emitting surface side of the organic electroluminescence device, and electrochromic layer is arranged in the electrochromic device
The light-emitting surface of the organic electroluminescence device is covered, and light penetration of the electrochromic device when being powered is electroluminescent less than this
Light penetration of the Electrochromic device in no power, therefore, on daytime, which is to close, and is led at this time
It crosses and is powered to the electrochromic device, reduce the light penetration of ambient light, be irradiated to so as to avoid ambient light organic
Electroluminescent device, and organic electroluminescence device is damaged, extend the service life of the organic electroluminescence device.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of structural schematic diagram of lighting device provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of another lighting device provided in an embodiment of the present invention；
Fig. 3 is organic electroluminescence device and electrochromic device in a kind of lighting device provided in an embodiment of the present invention
Working principle diagram；
Fig. 4 is a kind of structural schematic diagram of electrochromic device provided in an embodiment of the present invention；
Fig. 5 is a kind of structural schematic diagram of organic electroluminescence device provided in an embodiment of the present invention；
Fig. 6 is the structural schematic diagram of another organic electroluminescence device provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " center ", "upper", "lower", "front", "rear", " left side ",
The orientation or positional relationship of the instructions such as " right side ", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on the figure
Orientation or positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.?
In description of the invention, unless otherwise indicated, the meaning of " plurality " is two or more.
When OLED device is used as the illumination of automotive system as light source, since automobile is often exposed under sunlight, OLED device
The material and structure of part itself be easy to cause damage when being irradiated by sunlight, to reduce the service life of OLED device.
The embodiment provides a kind of lighting devices, referring to figure 1 and figure 2, including substrate 1, and setting
Organic electroluminescence device 2 on the substrate 1 further includes the electricity that the 2 light-emitting surface side of organic electroluminescence device is arranged in
Mutagens color device 3, and the contact surface mutually insulated of the electrochromic device 3 and the organic electroluminescence device 2；The electrochromism
Device 3 includes electrochromic layer 31, which covers the light-emitting surface of the organic electroluminescence device 2, and this is electroluminescent
Light penetration of the Electrochromic device 3 when being powered is less than light penetration of the electrochromic device 3 in no power when.
Electrochromism refers to the optical properties (reflectivity, transmitance, absorptivity etc.) of material under the action of extra electric field
Color change there is a phenomenon where stablizing, reversible shows as the reversible change of color and transparency in appearance.
The embodiment provides a kind of lighting device, by by organic electroluminescence device 2 and electrochromism device
Part 3 is combined together, and using electrochromic device 3, when being powered, color changes, so that light penetration variations in light
Feature, since the light-emitting surface side of the organic electroluminescence device 2, and electrochromic layer 31 is arranged in the electrochromic device 3
The light-emitting surface of the organic electroluminescence device 2 is covered, and light penetration of the electrochromic device 3 when being powered is less than the electricity
Light penetration of the mutagens color device 3 in no power, therefore, as shown in figure 3, on daytime, which is
It closes, at this time by being powered to the electrochromic device 3, the light penetration of ambient light is reduced, so as to avoid outer
Boundary's illumination is mapped to organic electroluminescence device 2, and damages to organic electroluminescence device 2, extends organic electroluminescence hair
The service life of optical device 2.
And at night, with continued reference to Fig. 3, when which needs to open, not to the electrochromic device
3 are powered, and the light that organic electroluminescence device 2 issues can pass through electrochromic device 3 and be emitted in external environment, thus real
Now illuminate.
Wherein, light penetration of the electrochromic device 3 when being powered is not specifically limited.
In one embodiment of the invention, as shown in figure 3, color of the electrochromic device 3 when being powered is black.This
When, which can absorb ambient light, and it avoids ambient light and is irradiated on organic electroluminescence device 2, and to having
The material and structure of organic electroluminescence devices 2 damage.
In another embodiment of the present invention, as shown in Fig. 2, the electrochromic device 3 further include be stacked it is electroluminescent at this
The first transparency electrode 32 and second transparency electrode 33 of 31 two sides of photochromic layer.
Wherein, the material of the first transparency electrode 32 and second transparency electrode 33 may include ITO (tin indium oxide) material.
Optionally, as shown in figure 4, the electrochromic device 3 can also include being arranged in first transparency electrode 32 and second
The ion storage layer 34 and electrolyte layer 35 of one of them in transparent electrode 33 between electrochromic layer 31.
It should be noted that first transparency electrode 32 and second is transparent in the electrochromic device 3 of this five-layer structure
Electrode 33 is separately connected positive and negative anodes, and perhaps high-low voltage is when first transparency electrode 32 connects anode or low-voltage, such as Fig. 4 institute
Showing, ion storage layer 34 and electrolyte layer 35 are cascading between first transparency electrode 32 and electrochromic layer 31, when
When second transparency electrode 33 connects anode or low-voltage, ion storage layer 34 and electrolyte layer 35 are cascading second
Between transparent electrode 33 and electrochromic layer 31.
Wherein, the effect of ion storage layer 34 is to provide and ion storage, when electrochromic layer 31 is by injection ion, it
Ion is supplied to electrolyte layer 35, and applies reversed electric field, when the ion of electrochromic layer 31 is extracted, it is again by ioncollection
Get up.Opposite chemical reaction (such as generation of electrochromic layer 31 oxidation reaction, ion storage layer occurs with electrochromic layer 31 in it
34 just occur reduction reaction, and reduction reaction occurs for electrochromic layer 31, and oxidation reaction occurs for ion storage layer 34) and play flat
The effect of weighing apparatus charge.
Electrolyte layer 35 is also referred to as ion conductive layer, ion (mainly H needed for main offer electrochromic effect+、Li+、
Na+) transmission channel, can satisfy electroneutral require and realize electric current duration.According to the structure and composition of electrolyte system,
Polymer dielectric can be roughly divided into full solid state polymer electrolyte, gel polymer electrolyte and compound polymer electrolyte
3 major class.
At work, by injecting or extracting charge (ion or electronics), so that electrochemistry oxygen occurs for electrochromic layer 31
Change reduction reaction, and changes colour.
Wherein, the material of the electrochromic layer 31 can be divided into inorganic electrochromic material and organic electrochromic material.Nothing
Machine electrochromic material is mostly transition metal oxide or derivatives thereof, such as WO3、MoO3、V2O5、Nb2O5、BiO3、NiO、IrO2、
CoO3、Rh2O3, MnO etc..The Typical Representative of organic electrochromic material is exactly purple sieve essence class compound, full name 1, and 1 '-bis- takes
Dai Ji -4,4 '-bipyridyl.
In an alternative embodiment of the invention, the material of the electrochromic layer 31 includes yttrium oxide (IrO2).Yttrium oxide is
A kind of anode off-color material becomes black when being powered in no power in colorless and transparent.
Wherein, without limitation to the specific structure of the organic electroluminescence device 2, which can be with
For single side luminescent device, or dual emission device.
Since the light-emitting surface side of the organic electroluminescence device 2 is arranged in the electrochromic device 3, when this has
When organic electroluminescence devices 2 are dual emission device, which can be two, and it is organic to be separately positioned on this
Two light-emitting surface sides of electroluminescent device 2.
Shown in Figure 5 in one embodiment of the invention, which includes being successively set on the lining
The light direction of anode 21, luminescent layer 22 and cathode 23 on bottom 1, the organic electroluminescence device 2 is directed toward cathode by anode 21
23；The side of the organic electroluminescence device 2 far from the substrate 1 is arranged in the electrochromic device 3.The organic electroluminescence
Part 2 is top illuminating device.
Wherein, the luminescent color of the organic electroluminescence device 2 is not specifically limited.
In one embodiment of the invention, with continued reference to Fig. 5, the luminescent layer 22 include be stacked blue light-emitting 221,
Red light luminescent layer 222 and green light emitting layer 223；And it is arranged in blue light-emitting 221, red light luminescent layer 222 and green luminescence
Per the charge transporting material 224 between adjacent two layers in layer 223.
The material of charge transporting material includes electron transport material and hole mobile material.
In embodiments of the present invention, which is white light parts, and by every adjacent two layers it
Between be arranged charge transporting material 224, be conducive to carrier (such as electrons and holes) interlayer transmit.
Specifically, under the action of an external electric field, when there is carrier (electrons and holes) injection, charge transporting material can
Charge transfer process is realized to realize the directional migration of carrier, to make blue light-emitting 221,222 and of red light luminescent layer
It is compound and issue blue light, feux rouges and green light respectively that electrons and holes occur for green light emitting layer 223.
Optionally, with continued reference to Fig. 5, which further includes being arranged in the luminescent layer 22 and the anode
Hole injection layer 24 between 21, and the electron injecting layer 25 being arranged between the luminescent layer 22 and the cathode 23.
Further alternative, the material of the hole injection layer 24 further includes hole mobile material, the electron injecting layer 25
Material further includes electron transport material；Alternatively, the organic electroluminescence device 2 further includes that setting is injected in the hole referring to Fig. 6
Hole transmission layer 26 between layer 24 and the anode 21, and the electronics being arranged between the electron injecting layer 25 and the cathode 23
Transport layer 27.Be conducive to improve the electrons and holes transmission performance of the organic electroluminescence device 2.
In another embodiment of the present invention, which is car light.So, under sunlight on daytime, the car light
In organic electroluminescence device 2 be close, by being powered to electrochromic device 3, can reduce the light of ambient light
Line transmitance, so that the structure and material to organic electroluminescence device 2 is avoided to damage, and at night, in the car light
It when organic electroluminescence device 2 is opened, is not powered to electrochromic device 3, keeps certain light penetration, thus real
Now illuminate.
On the other hand, the embodiment of the present invention provides a kind of production method of lighting device, comprising: is formed on the substrate organic
Electroluminescent device；In the fixed electrochromic device in the light-emitting surface side of the organic electroluminescence device, the electrochromic device
With the contact surface mutually insulated of the organic electroluminescence device, which includes electrochromic layer, the electrochromism
Layer covers the light-emitting surface of the organic electroluminescence device；It is electroluminescent that light penetration of the electrochromic device when being powered is less than this
Light penetration of the Electrochromic device in no power.
The embodiment of the present invention provides a kind of production method of lighting device, by going out light in organic electroluminescence device
Electrochromic device is fixed in face side, since the electrochromic layer of the electrochromic device covers the organic electroluminescence device
Light-emitting surface, and light penetration of the electrochromic device when being powered is less than light of the electrochromic device in no power when
Transmitance, therefore, on daytime, which is to close, at this time by leading to the electrochromic device
Electricity reduces the light penetration of ambient light, is irradiated to organic electroluminescence device so as to avoid ambient light, and to organic electroluminescence
Luminescent device damages, and extends the service life of the organic electroluminescence device.
And at night, when which needs to open, it is not powered to the electrochromic device, it is organic
The light that electroluminescent device issues can pass through electrochromic device and be emitted in external environment, to realize illumination.
Wherein it is possible to which organic electroluminescence device is formed on the substrate by way of vapor deposition.
Specifically, the luminescent layer when the organic electroluminescence device includes the blue light-emitting being stacked, red light-emitting
Layer and green light emitting layer；And it is arranged in blue light-emitting, red light luminescent layer and green light emitting layer between per adjacent two layers
Charge transporting material when, the organic electroluminescence device to emit white light can be formed by the way that each material layer is deposited.
Wherein it is possible to which electrochromic device to be fixed on to the light-emitting surface of the organic electroluminescence device by way of stickup
Side.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of lighting device, including substrate, and the organic electroluminescence device of setting over the substrate；Its feature exists
In, further includes: the light-emitting surface side of the organic electroluminescence device is arranged in electrochromic device, the electrochromic layer,
And the contact surface mutually insulated of the electrochromic device and the organic electroluminescence device；
The electrochromic device includes electrochromic layer, and the electrochromic layer covers the organic electroluminescence device
Light-emitting surface；
Light penetration of the electrochromic device when being powered is less than light of the electrochromic device in no power when
Transmitance.
2. lighting device according to claim 1, which is characterized in that the electrochromic device be powered when color be
Black.
3. lighting device according to claim 1 or 2, which is characterized in that the electrochromic device further includes that stacking is set
Set the first transparency electrode and second transparency electrode in the electrochromic layer two sides.
4. lighting device according to claim 3, which is characterized in that the material of the electrochromic layer includes yttrium oxide.
5. lighting device according to claim 1, which is characterized in that the organic electroluminescence device includes setting gradually
Anode, luminescent layer and cathode over the substrate, the light direction of the organic electroluminescence device are directed toward cathode by anode；
Side of the organic electroluminescence device far from the substrate is arranged in the electrochromic device.
6. lighting device according to claim 5, which is characterized in that the luminescent layer includes the blue light emitting being stacked
Layer, red light luminescent layer and green light emitting layer；And it is arranged in blue light-emitting, red light luminescent layer and green light emitting layer per adjacent
Two layers between charge transporting material.
7. lighting device according to claim 5 or 6, which is characterized in that the organic electroluminescence device further includes setting
The hole injection layer between the luminescent layer and the anode is set, and is arranged between the luminescent layer and the cathode
Electron injecting layer.
8. lighting device according to claim 7, which is characterized in that
The hole injection layer further includes hole mobile material, and the electron injecting layer further includes electron transport material；Alternatively,
The organic electroluminescence device further includes the hole transmission layer being arranged between the hole injection layer and the anode,
And the electron transfer layer between the electron injecting layer and the cathode is set.
9. lighting device according to claim 1, which is characterized in that
The lighting device is car light.
10. a kind of production method of lighting device characterized by comprising
Organic electroluminescence device is formed on the substrate；
Electrochromic device, and the electrochromic device and institute are fixed in the light-emitting surface side of the organic electroluminescence device
The contact surface mutually insulated of organic electroluminescence device is stated, the electroluminescent device includes electroluminescence layer, the electroluminescent hair
Photosphere covers the light-emitting surface of the organic electroluminescence device；
Light penetration of the electrochromic device when being powered is less than light of the electrochromic device in no power when
Transmitance.
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| CN201910009024.6A CN109585524B (en) | 2019-01-04 | 2019-01-04 | Lighting device and manufacturing method thereof |
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| CN201910009024.6A CN109585524B (en) | 2019-01-04 | 2019-01-04 | Lighting device and manufacturing method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110196522A (en) * | 2019-06-26 | 2019-09-03 | 上海洞舟实业有限公司 | A kind of preparation method of white light electrochromic device |
| CN112394437A (en) * | 2019-08-13 | 2021-02-23 | 陕西坤同半导体科技有限公司 | Cover plate, display device and electronic equipment |
| CN114321827A (en) * | 2020-09-29 | 2022-04-12 | 通用汽车环球科技运作有限责任公司 | Light emitting assembly with transparent nanostructured electrochromic polymer color filter |
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