CN104319355B - A kind of luminescent device and drive control method, light fixture - Google Patents
A kind of luminescent device and drive control method, light fixture Download PDFInfo
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- CN104319355B CN104319355B CN201410669436.XA CN201410669436A CN104319355B CN 104319355 B CN104319355 B CN 104319355B CN 201410669436 A CN201410669436 A CN 201410669436A CN 104319355 B CN104319355 B CN 104319355B
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- 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
- H10K50/80—Constructional details
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- 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
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
Abstract
The invention provides a kind of luminescent device and drive control method, light fixture, relate to technical field of semiconductor illumination.Wherein luminescent device includes multiple luminescence units stacked together, and the color of the light that can send is different；It is arranged at the insulating barrier between adjacent two luminescence units；The anode of multiple luminescence units is all connected with same anode voltage control circuit, and the negative electrode of multiple luminescence units is connected with multiple cathode voltage control circuits one to one；Or the anode of multiple luminescence units is connected with multiple anode voltage control circuits one to one, the negative electrode of multiple luminescence units is all connected with same cathode voltage control circuit；Or the anode of multiple luminescence units is connected with multiple anode voltage control circuits one to one, the negative electrode of multiple luminescence units is connected with multiple cathode voltage control circuits one to one.This luminescent device can send the light of multiple color, and can carry out the switching of glow color.
Description
Technical field
The present invention relates to technical field of semiconductor illumination, particularly relate to a kind of luminescent device and drive control side thereof
Method, light fixture.
Background technology
OLED (Organic Light Emitting Diode, organic light emitting diode) generally include anode,
Luminescent layer and negative electrode, wherein luminescent layer use organic semiconducting materials formed, under electric field driven, anode to
Luminescent layer injects hole, and negative electrode injects electronics to luminescent layer, and hole and electronics complex excitation in luminescent layer is sent out
Photosphere material emission.Due to OLED have flat luminous, ultra-thin, transparent, can flexibility, efficiently save
The advantages such as energy, environmental protection, therefore all have great development potentiality in display and illumination two big applications,
Obtain concern widely.
OLED can be realized that by changing the molecular structure of emitting layer material glow color is appointed in visible region
Meaning regulation (includes red, green, blue, the light of the color such as white).But, current OLED luminescent device is all only
Can carry out the type of lighting of solid color or white, i.e. one OLED luminescent device can only provide a kind of color,
Cannot be carried out the checker of color.
Content of the invention
For overcoming above-mentioned defect of the prior art, the technical problem to be solved is: provide one
Luminescent device and drive control method, light fixture, to realize that a kind of luminescent device can provide multiple color
Light, and the purpose of color switching can be carried out.
For reaching above-mentioned purpose, the present invention adopts the following technical scheme that
A first aspect of the present invention provides a kind of luminescent device, comprising: stacked together is multiple luminous single
Unit, each described luminescence unit includes anode, negative electrode and the luminescence being positioned between described anode and described negative electrode
Layer, the color of the light that the plurality of luminescence unit can send is different；It is arranged at and send out described in adjacent two
For keeping the insulating barrier of adjacent two described luminescence unit mutually insulateds between light unit；Luminous single with described
At least one anode voltage control circuit that the anode of unit is connected；Be connected with the negative electrode of described luminescence unit to
A few cathode voltage control circuit；Wherein, the anode of the plurality of luminescence unit is all electric with same anode
Pressure control circuit is connected, and the negative electrode of the plurality of luminescence unit is electric with the control of multiple cathode voltages one to one
Road is connected；Or, the anode of the plurality of luminescence unit one to one with multiple anode voltage control circuits
Being connected, the negative electrode of the plurality of luminescence unit is all connected with same cathode voltage control circuit；Or, institute
The anode stating multiple luminescence unit is connected with multiple anode voltage control circuits one to one, the plurality of
The negative electrode of light unit is connected with multiple cathode voltage control circuits one to one.
Preferably, being positioned in the luminescence unit of bottom, anode is in the bottom, and anode exceed luminescent layer and
The coverage of negative electrode, anode is beyond part beyond the part of luminescent layer and the coverage of negative electrode；Stacking
The anode of the luminescence unit on the described luminescence unit being positioned at bottom and the described luminescence unit being positioned at bottom
Anode exceed partial electrical contact；The anode of the described luminescence unit being positioned at bottom and anode voltage control electricity
Road is connected, and the negative electrode of the plurality of luminescence unit is connected with multiple cathode voltage control circuits one to one.
Preferably, being positioned in the luminescence unit of bottom, negative electrode is in the bottom, and negative electrode exceed luminescent layer and
The coverage of anode, negative electrode is beyond part beyond the part of luminescent layer and the coverage of anode；Stacking
The negative electrode of the luminescence unit on the described luminescence unit being positioned at bottom and the described luminescence unit being positioned at bottom
Contacting beyond part of negative electrode；The negative electrode of the described luminescence unit being positioned at bottom and cathode voltage control electricity
Road is connected, and the anode of the plurality of luminescence unit is connected with multiple anode voltage control circuits one to one.
Preferably, the coverage of each film layer of the plurality of luminescence unit is identical, the plurality of luminescence unit
Anode be connected with multiple anode voltage control circuits one to one, the negative electrode one of the plurality of luminescence unit
One corresponding and multiple cathode voltage control circuits are connected.
Preferably, each film layer of the plurality of luminescence unit is transparent film layer；Or, it is positioned at sending out of bottom
The film layer being in the bottom in light unit is opaque film layer, be laminated in described in be positioned at bottom luminescence unit
In the film layer that is on the film layer of the bottom be transparent film layer；Or, it is positioned in the luminescence unit at top place
It is opaque film layer in the film layer of top, the described luminescence unit being positioned at top is in the film of top
Film layer below Ceng is transparent film layer.
Preferably, described luminescent device includes three luminescence units, described three luminescence units glow respectively,
Green glow and blue light；Or, described luminescent device includes four luminescence units, and described four luminescence units are respectively
Glow, green glow, blue light and gold-tinted.
Preferably, described luminescent device also includes: a transparency carrier, and the plurality of luminescence unit is laminated in institute
State on transparency carrier.
A second aspect of the present invention provides a kind of drive control method of luminescent device, is used for driving above institute
The luminescent device stated, described drive control method is: the glow color at needs is single in described luminescent device
During a kind of in the glow color of one luminescence unit, utilize and the luminescence unit that the light needing color can not be sent
Can not send, described in the anode voltage control circuit being connected and the control of cathode voltage control circuit, the light needing color
Luminescence unit close, utilize the anode that is connected with the luminescence unit that can send the light needing color electric simultaneously
The luminescence unit that can send the light needing color described in pressure control circuit and the control of cathode voltage control circuit is beaten
Open；In the colour mixture that the glow color needing is the glow color of at least two luminescence unit in described luminescent device
When, utilize the anode voltage being connected with the luminescence unit that can not send the light forming the color that described colour mixture needs
Can not send, described in control circuit and the control of cathode voltage control circuit, the light forming the color that described colour mixture needs
Luminescence unit close, utilize simultaneously and the luminous single of the light forming the color that described colour mixture needs can be sent
Formation can be sent described mixed described in the connected anode voltage control circuit of unit and the control of cathode voltage control circuit
The luminescence unit of the light of the color that look needs is opened.
Preferably, described driving method also includes: when described luminescence unit is opened, utilize and open send out
The luminescence unit opened described in the connected anode voltage control circuit of light unit and the regulation of cathode voltage control circuit
Anode and negative electrode between voltage difference, the luminosity of the luminescence unit to open described in changing.
A third aspect of the present invention provides a kind of light fixture, including above-described luminescent device.
In luminescent device provided by the present invention and drive control method thereof, light fixture, luminescent device includes multiple
The luminescence unit of stacking, keeps insulation, multiple luminescences by arranging insulating barrier between adjacent two luminescence units
The color of the light that unit can send is different, the anode jointed anode Control of Voltage electricity of each luminescence unit
Road, negative electrode connects cathode voltage control circuit, by making the sun of the whole luminescence units included by luminescent device
Pole and/or negative electrode connect multiple voltage control circuit one to one, close for parallel connection between i.e. each luminescence unit
System, it is achieved the independent drive control to multiple luminescence units, thus utilize voltage control circuit control corresponding
Luminescence unit is turned on and off, and can obtain the glow color needing, and can carry out the switching of glow color.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to enforcement
In example or description of the prior art, the accompanying drawing of required use is briefly described, it should be apparent that, describe below
In accompanying drawing be only some embodiments of the present invention, for those of ordinary skill in the art, do not paying
On the premise of going out creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The first the concrete structure figure of the luminescent device that Fig. 1 is provided by the embodiment of the present invention；
The second concrete structure figure of the luminescent device that Fig. 2 is provided by the embodiment of the present invention；
The same luminescence unit inner anode of the luminescent device that Fig. 3 a is provided by the embodiment of the present invention is prior to negative electrode shape
The third concrete structure figure becoming；
The same luminescence unit inner cathode of the luminescent device that Fig. 3 b is provided by the embodiment of the present invention is prior to anode shape
The third concrete structure figure becoming.
Detailed description of the invention
Understandable, below in conjunction with this for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from
Accompanying drawing in bright embodiment, is clearly and completely described to the technical scheme in the embodiment of the present invention.Aobvious
So, described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on
Embodiment in the present invention, those of ordinary skill in the art are obtained on the premise of not making creative work
The all other embodiment obtaining, belongs to the scope of protection of the invention.
The present embodiment provides a kind of luminescent device, comprising: multiple luminescence units stacked together, and each is sent out
Light unit includes anode, negative electrode and the luminescent layer being positioned between anode and negative electrode, and multiple luminescence units can be sent out
The color of the light going out is different；It is arranged between adjacent two luminescence units for keeping adjacent two luminescences
The insulating barrier of unit mutually insulated；At least one the anode voltage control circuit being connected with the anode of luminescence unit；
At least one the cathode voltage control circuit being connected with the negative electrode of luminescence unit.
Wherein, the anode of multiple luminescence units is all connected with same anode voltage control circuit, multiple luminescences
The negative electrode of unit is connected with multiple cathode voltage control circuits one to one；Or, multiple luminescence units
Anode is connected with multiple anode voltage control circuits one to one, the negative electrode of multiple luminescence units all with same
Individual cathode voltage control circuit is connected；Or, the anode of multiple luminescence units one to one with multiple anodes
Voltage control circuit be connected, the negative electrode of multiple luminescence units one to one with multiple cathode voltage control circuits
It is connected.
Above-mentioned luminescent device is by by stacked together for multiple luminescence units, and multiple luminescence units can send
The color of light different, keep insulation by insulating barrier between adjacent two luminescence units, each is luminous
The anode of unit and an anode voltage control circuit are connected, and negative electrode and a cathode voltage control circuit are connected, from
And individual luminescence unit is in parallel, enabling independent driving is carried out to multiple luminescence units.By control at least
One luminescence unit is opened, and is capable of solid color or the light of at least two color colour mixture shows, and can
Carry out the switching of different glow color.
The present embodiment specifically provides the concrete structure of three kinds of above-mentioned luminescent devices.As it is shown in figure 1, be this reality
Executing the first concrete structure figure of the provided luminescent device of example, this luminescent device is positioned at the luminescence unit 1 of bottom
In, anode 11 is in the bottom, and anode 11 exceeds the coverage of luminescent layer 12 and negative electrode 13, sun
Pole 11 is beyond part beyond the part of luminescent layer 12 and the coverage of negative electrode 13；It is laminated in and be positioned at bottom
Luminescence unit 1 on the anode 11 of luminescence unit 1 and the anode 11 of luminescence unit 1 being positioned at bottom
Beyond partial electrical contact；It is positioned at anode 11 and anode voltage control circuit 3 phase of the luminescence unit 1 of bottom
Connect, and the negative electrode 13 of multiple luminescence unit 1 is connected with multiple cathode voltage control circuits 4 one to one.
It should be noted that " being positioned at the luminescence unit 1 of bottom " described in the present embodiment refers to send out at one
The luminescence unit being formed at first in whole luminescence units 1 included by optical device, relative, it " is positioned at top
The luminescence unit 1 in portion " refers to eventually forming in the whole luminescence units 1 included by a luminescent device
Individual luminescence unit；" ... it is in the bottom " refer to the whole luminous list that " ... " is included by a luminescent device
The film layer being formed at first in whole film layers of unit 1, contrary, " ... it is in top " refer to " ... "
It is the film layer eventually forming in whole film layers of whole luminescence units 1 included by a luminescent device.
The luminescent device of said structure, exceeds its luminescent layer 12 by making the anode 11 of bottom luminescence unit 1
With negative electrode 13, during being subsequently formed and being laminated other luminescence units 1 on bottom luminescence unit 1, its
The anode 11 of its luminescence unit 1 can by the anode 11 with bottom luminescence unit 1 exceed part contact,
The electrical connection of the anode 11 of realization and bottom luminescence unit 1.Now only by the anode 11 of bottom luminescence unit 1
Connect an anode voltage control circuit 3, it becomes possible to realize anode 11 voltage to whole luminescence units 1
Control, anode 11 voltage of whole luminescence units 1 is identical, simultaneously by the negative electrode by each luminescence unit 1
13 are connected from different cathode voltage control circuit 4 respectively, it is achieved to the negative electrode 13 of each luminescence unit 1
Control respectively, so realize to the voltage difference between the anode 11 of each luminescence unit 1 and negative electrode 13 only
Vertical control.The luminescent device of this structure, the anode 11 of whole luminescence units 1 shares same anode voltage
Control circuit 3, is conducive to simplifying device architecture, reduces device power consumption.
More specifically, being laminated in the luminescence unit 11 on bottom-emission unit 1 needs and bottom-emission
The cross sectional shape of the anode 11 of anode 11 electrical contact of unit 1 can be " L " shape fallen down, including level
Part and vertical portion, horizontal component covers on bottom-emission unit 1, and vertical portion is along bottom-emission list
The sidewall of unit 1 extends, by make vertical portion and bottom-emission unit 1 anode 11 exceed part contact,
The anode 11 of each luminescence unit 1 that realization is laminated on bottom-emission unit 1 and the anode of bottom-emission unit
The electrical connection of 11.
It should be noted that in order to ensure to be electrically insulated between luminescence unit 1, insulating barrier 2 preferred with
The extension of the anode 11 contacting with himself and extend；Concrete, if being laminated on bottom-emission unit 1
Luminescence unit 11 in need the cross sectional shape of anode 11 that the anode 11 with bottom-emission unit 1 makes electrical contact with
Can be " L " shape fallen down, then the insulating barrier 2 contacting with them be also " L " shape fallen down.
Make to be formed at the flattening film layer before himself additionally, insulating barrier 2 also has, for be subsequently formed
Film layer provides smooth growth interface, to improve the effect of film quality.
As in figure 2 it is shown, the second concrete structure figure of the luminescent device being provided by the present embodiment, this luminescence
Device is positioned in the luminescence unit 1 of bottom, and negative electrode 13 is in the bottom, and negative electrode 13 exceeds luminescent layer 12
With the coverage of anode 11, negative electrode 13 beyond the part of luminescent layer 12 and the coverage of anode 11 is
Beyond part；Be laminated in be positioned at bottom luminescence unit 1 on luminescence unit 1 negative electrode 13 be positioned at bottom
Luminescence unit 1 negative electrode 13 beyond part contact；It is positioned at the negative electrode 13 of the luminescence unit 1 of bottom
Be connected with a cathode voltage control circuit 4, and the anode 11 of multiple luminescence unit one to one with multiple sun
Pole tension control circuit 3 is connected.
In the luminescent device of said structure, the negative electrode 13 of each luminescence unit 1 shares the control of same cathode voltage
Circuit 4, therefore the voltage of the negative electrode 13 of each luminescence unit 1 is identical, and the anode 11 of each luminescence unit 1 is respectively
It is connected from different anode voltage control circuits 3, therefore executed by controlling anode voltage control circuit 3 respectively
Add to the voltage of each anode 11, be capable of the electricity between the anode 11 to each luminescence unit 1 and negative electrode 13
Pressure reduction.This luminescent device has simple in construction, advantage low in energy consumption, it is adaptable to negative electrode 13 is prior to anode 11
The ray structure being formed.
As shown in Figure 3 a and Figure 3 b shows, the third concrete structure of the luminescent device being provided by the present embodiment,
The coverage of each film layer of multiple luminescence units 1 of this luminescent device is identical, the sun of multiple luminescence units 1
Pole 11 is connected with multiple anode voltage control circuits 3 one to one, the negative electrode 13 of multiple luminescence units 1
It is connected with multiple cathode voltage control circuits 4 one to one.The luminescent device of this structure is capable of to respectively
The independent control of anode 11 voltage of luminescence unit 1, and it is capable of the negative electrode 13 to each luminescence unit 1
The independent control of voltage, thus the free degree of the adjustable range of the driving voltage of each luminescence unit 1 and adjustment
Bigger, disclosure satisfy that to luminous mass (such as: brightness, saturation degree, colourity etc.) higher requirement.
It should be noted that the structure shown by Fig. 3 a is applicable to luminescence unit 1 Anodic 11 prior to negative electrode
13 formed ray structures, the structure shown by Fig. 3 b be applicable to luminescence unit 1 negative electrode 13 prior to anode
11 ray structures being formed.
In addition, the present embodiment only illustrates as a example by the luminescent device of three of the above concrete structure, at this
In bright other embodiments, the anode 11 of each luminescence unit 1 and the connected mode of anode voltage control circuit 3
It is not limited to three of the above with the connected mode of negative electrode 13 and cathode voltage control circuit 4, for example: one can be made
The anode 11 (or negative electrode 13) of part luminescence unit 1 shares same anode voltage control circuit 3 (or negative electrode
Voltage control circuit 4), the anode 11 (or negative electrode 13) of another part luminescence unit 1 shares an other anode
Voltage control circuit 3 (or cathode voltage control circuit 4)；Or the anode of a part of luminescence unit 1 can be made
11 (or negative electrodes 13) share same anode voltage control circuit 3 (or cathode voltage control circuit 4), another
The anode 11 of part luminescence unit 1 respectively one to one with other multiple anode voltage control circuits 3 (or
Cathode voltage control circuit 4) it is connected, with on the basis of simplifying device architecture in various degree, meet to difference
The demand of glow color.
The luminescent device that the present embodiment is provided can be made as two-sided go out light luminescent device, now need by
Each film layer of multiple luminescence units 1 is disposed as transparent film layer；Or can be made as the end goes out the photophore of light
Part, the film layer being in the bottom in the luminescence unit 1 being now placed in bottom need to be set to opaque film layer,
It is laminated in the luminescence unit 1 bottom being positioned at the film layer being on the film layer of the bottom to be both needed to be set to hyaline membrane
Layer；Or can be made as ejecting the luminescent device of light, be now placed in the luminescence unit 1 at top is in
The film layer of top layer need to be set to opaque film layer, is positioned in the luminescence unit 1 at top and is in the film of top
Film layer below Ceng is both needed to be set to transparent film layer.
Further, if anode 11 is opaque film layer, then transparent conductive material can be used (such as: ITO
(Indium Tin Oxide, tin indium oxide), Graphene (Graphene), PEDOT:PSS (quantum dot material
Material) etc.) structure that is laminated with reflectorized material (such as: Al), or can directly use high the leading of reflection coefficient
Electric material is formed；If anode 11 is transparent film layer, then can directly use ITO, Graphene, PEDOT:PSS
Formed Deng transparent conductive material；If negative electrode 13 is opaque film layer, then can use the conduction that reflection coefficient is high
Material (such as: Al) is formed, or uses the structure of transparent conductive material and reflectorized material stacking；If negative electrode
13 is transparent film layer, then can use transparent conductive material (such as: the materials such as ITO, magnesium silver alloy).
In the present embodiment, luminescent device preferably can include three luminescence units 1, glow respectively, green glow and
Blue light, thus the color of light that luminescent device can send can be mixed for red, green, blue, red green colour mixture, red indigo plant
The white that look, turquoise colour mixture, RGB colour mixture are formed；Or luminescent device preferably can include that four are sent out
Light unit 1, glows, green glow, blue light and gold-tinted respectively, thus the color of light that luminescent device can send
Can for red, green, blue, Huang, red green colour mixture, red blue colour mixture, reddish yellow colour mixture, turquoise colour mixture, greenish-yellow colour mixture,
White that blue yellow colour mixture, RGB colour mixture are formed, red greenish-yellow colour mixture, red blue yellow colour mixture, turquoise yellow colour mixture,
The white that red, green, blue and yellow colour mixture is formed, the existence of Yellow light emitting unit 1 can significantly improve luminescent device
The colour gamut of the light that can send.
It should be noted that the present embodiment only includes three luminescence units of red, green, blue or bag with luminescent device
Illustrate as a example by including red, green, blue and Huang Si luminescence unit, in other embodiments of the invention, can
The luminescence unit 1 of the light that can send other colors is set according to actual needs.
As shown in Figure 1, Figure 2, shown in Fig. 3 a and Fig. 3 b, in the luminescent device that the present embodiment is provided, also can wrap
Including a transparency carrier 5, multiple luminescence units 1 are laminated on this transparency carrier 5, and transparency carrier 5 can be selected
Transparent glass substrate, meets the Production requirement of rigid luminescent device, it is also possible to selection polymeric transparent substrate (such as:
PI (Polyimide Film, Kapton), PET (Polyethylene Terephthalate,
Polyethylene terephthalate) film etc.), meet the Production requirement of luminescent device.
Further, transparency carrier 5 can with anode 11 or negative electrode 13 substrate of common integrated production, i.e.
Transparency carrier 5 can be the substrate carrying conductive film, such as: carry the glass substrate of ITO, carry ITO's
Pet substrate, the pet substrate etc. carrying Graphene, to omit the making of the film layer of one layer of luminescent device,
Shorten the cycle of manufacturing process.
The present embodiment additionally provides the drive control method for driving above-mentioned luminescent device, this drive control side
Method is: need glow color be single luminescence unit in luminescent device glow color in a kind of when,
Utilize the anode voltage control circuit being connected with the luminescence unit that can not send the light needing color and cathode voltage
The luminescence unit that control circuit control can not send the light needing color is closed, and utilizes simultaneously and needs with sending
Want color light luminescence unit be connected anode voltage control circuit and cathode voltage control circuit control can
The luminescence unit sending the light needing color is opened；
When the colour mixture that the glow color needing is the glow color of at least two luminescence unit in luminescent device,
The anode voltage control circuit that the luminescence unit utilizing and can not sending the light forming the color that colour mixture needs is connected
The luminescence unit that can not send the light forming the color that colour mixture needs with the control of cathode voltage control circuit is closed,
The anode voltage control that the luminescence unit utilizing simultaneously and can sending the light forming the color that colour mixture needs is connected
Circuit and the control of cathode voltage control circuit described can send formed the color that described colour mixture needs light
Light unit is opened.
Utilize above-mentioned drive control method only by way of passive drive, it becomes possible to make the present embodiment be provided
Luminescent device send the light of multiple monochrome or colour mixture, and be capable of the switching of different glow color, relatively
Need active be combined with passive drive mode could realize multiple color in the luminescent device using series parallel structure
Illumination, the type of drive that the present embodiment is provided is simpler.
As a example by luminescent device illustrated in fig. 1, its drive control method is described in detail below.
If desired luminescent device sends ruddiness, then may utilize anode voltage control voltage 3 and wrapped to luminescent device
The anode 11 of three luminescence units 1 of red, green and blue including applies a voltage；Close and green emitting unit 1
The cathode voltage control circuit 4 that is connected of negative electrode 13 and the moon being connected with the negative electrode 13 of blue-light-emitting unit 1
Pole tension control circuit 4, thus green emitting unit 1 and blue-light-emitting unit 1 be not luminous；Utilize and redness
The cathode voltage control circuit 4 that the negative electrode 13 of luminescence unit 1 is connected is to the negative electrode 13 of emitting red light unit 1
Apply a voltage, thus emitting red light unit 1 sends ruddiness.
In like manner, controllable luminescent device sends green glow or blue light.
If desired luminescent device sends gold-tinted, owing to yellow can be mixed to form by red and green, and therefore can profit
Control the anode to three luminescence units 1 of red, green and blue included by luminescent device for the voltage 3 with anode voltage
11 applying one voltages；Close the cathode voltage control circuit 4 being connected with the negative electrode 13 of blue-light-emitting unit 1,
Thus blue-light-emitting unit 1 is not luminous；Utilize the cathode voltage being connected with the negative electrode 13 of emitting red light unit 1
Control circuit 4 applies a voltage to the negative electrode 13 of emitting red light unit 1, the negative electrode with green emitting unit 1
The 13 cathode voltage control circuits 4 being connected apply a voltage to the negative electrode 13 of green emitting unit 1, thus red
Look luminescence unit 1 sends ruddiness, and green emitting unit 1 sends green glow, and ruddiness mixes with green glow makes photophore
The light that part sends is yellow.
In like manner, controllable luminescent device sends the light of red blue colour mixture or the light of turquoise colour mixture.
If desired luminescent device sends white light, owing to white can be mixed to form by red, green and blueness, because of
This available anode voltage control voltage 3 is to three luminescence units 1 of the red, green and blue included by luminescent device
Anode 11 apply a voltage；Utilize the cathode voltage control being connected with the negative electrode 13 of emitting red light unit 1
Circuit 4 applies a voltage to the negative electrode 13 of emitting red light unit 1, the negative electrode 13 with green emitting unit 1
The cathode voltage control circuit 4 being connected applies a voltage to the negative electrode 13 of green emitting unit 1, sends out with blueness
The cathode voltage control circuit 4 that the negative electrode 13 of light unit 1 is connected is executed to the negative electrode 13 of blue-light-emitting unit 1
Adding a voltage, thus emitting red light unit 1 sending ruddiness, green emitting unit 1 sends green glow, and blueness is sent out
Light unit 1 sends blue light, and the light that ruddiness, green glow and blue light make luminescent device send is white.
Further, when luminescence unit 1 is opened, the available anode being connected with the luminescence unit 1 opened
Voltage control circuit 3 and cathode voltage control circuit 4 regulate anode 11 and the negative electrode of the luminescence unit 1 opened
Voltage difference between 13, to change the luminosity of the luminescence unit 1 opened.
The present embodiment additionally provides a kind of light fixture including above-mentioned luminescent device, and this light fixture can carry out multiple face
The illumination of the light of look, and its glow color can switch between different colours, meets people to light fixture
Color multiple demands.
The foregoing is only the detailed description of the invention of the present invention, but protection scope of the present invention is not limited to
This, any those familiar with the art, in the technical scope that the invention discloses, can readily occur in
Change or replacement, all should cover within protection scope of the present invention.Therefore, protection scope of the present invention
Should be as the criterion with described scope of the claims.
Claims (7)
1. a luminescent device, it is characterised in that include:
Multiple luminescence units stacked together, each described luminescence unit includes anode, negative electrode and is positioned at institute
Stating the luminescent layer between anode and described negative electrode, the color of the light that the plurality of luminescence unit can send is each not
Identical；
It is arranged between adjacent two described luminescence units for keeping adjacent two described luminescence units mutually exhausted
The insulating barrier of edge；
At least one the anode voltage control circuit being connected with the anode of described luminescence unit；
At least one the cathode voltage control circuit being connected with the negative electrode of described luminescence unit；
Being positioned in the luminescence unit of bottom, anode is in the bottom, and anode exceeds covering of luminescent layer and negative electrode
Lid scope, anode is beyond part beyond the part of luminescent layer and the coverage of negative electrode；It is laminated in institute's rheme
The anode of the luminescence unit on the luminescence unit of bottom is super with the anode of the described luminescence unit being positioned at bottom
Go out partial electrical contact；The anode of the described luminescence unit being positioned at bottom and an anode voltage control circuit are connected,
And the negative electrode of the plurality of luminescence unit is connected with multiple cathode voltage control circuits one to one；Or,
Being positioned in the luminescence unit of bottom, negative electrode is in the bottom, and negative electrode exceeds covering of luminescent layer and anode
Lid scope, negative electrode is beyond part beyond the part of luminescent layer and the coverage of anode；It is laminated in institute's rheme
The negative electrode of the luminescence unit on the luminescence unit of bottom is super with the negative electrode of the described luminescence unit being positioned at bottom
Go out part to contact；The negative electrode of the described luminescence unit being positioned at bottom and a cathode voltage control circuit are connected,
And the anode of the plurality of luminescence unit is connected with multiple anode voltage control circuits one to one.
2. luminescent device according to claim 1, it is characterised in that the plurality of luminescence unit each
Film layer is transparent film layer；Or,
The film layer being in the bottom in the luminescence unit being positioned at bottom is opaque film layer, is laminated in institute's rheme
The film layer being in the luminescence unit of bottom on the film layer of the bottom is transparent film layer；Or,
It is positioned in the luminescence unit at top that to be in the film layer of top be opaque film layer, described be positioned at top
Luminescence unit in be in the film layer below the film layer of top and be transparent film layer.
3. luminescent device according to claim 1, it is characterised in that described luminescent device includes three
Luminescence unit, described three luminescence units glow respectively, green glow and blue light；Or, described luminescent device
Including four luminescence units, described four luminescence units glow respectively, green glow, blue light and gold-tinted.
4. luminescent device according to claim 1, it is characterised in that described luminescent device also includes:
One transparency carrier, the plurality of luminescence unit is laminated on described transparency carrier.
5. the drive control method of a luminescent device, it is characterised in that be used for driving Claims 1 to 4
Luminescent device described in any one, described drive control method is:
One in the glow color that the glow color needing is single luminescence unit in described luminescent device
When, utilize the anode voltage control circuit being connected with the luminescence unit that can not send the light needing color and negative electrode
The luminescence unit that can not send the light needing color described in voltage control circuit control is closed, and utilizes and energy simultaneously
Enough send the light needing color luminescence unit be connected anode voltage control circuit and cathode voltage control circuit
The luminescence unit that can send the light needing color described in Kong Zhi is opened；
In the colour mixture that the glow color needing is the glow color of at least two luminescence unit in described luminescent device
When, utilize the anode voltage being connected with the luminescence unit that can not send the light forming the color that described colour mixture needs
Can not send, described in control circuit and the control of cathode voltage control circuit, the light forming the color that described colour mixture needs
Luminescence unit close, utilize simultaneously and the luminous single of the light forming the color that described colour mixture needs can be sent
Formation can be sent described mixed described in the connected anode voltage control circuit of unit and the control of cathode voltage control circuit
The luminescence unit of the light of the color that look needs is opened.
6. the drive control method of luminescent device according to claim 5, it is characterised in that described drive
Dynamic method also includes: when described luminescence unit is opened, and utilizes the anode electricity being connected with the luminescence unit opened
Between the anode of the luminescence unit opened described in pressure control circuit and the regulation of cathode voltage control circuit and negative electrode
Voltage difference, the luminosity of the luminescence unit to open described in changing.
7. a light fixture, it is characterised in that include the luminescent device described in any one of Claims 1 to 4.
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| CN108109574A (en) * | 2017-12-18 | 2018-06-01 | 武汉水草能源科技研发中心(有限合伙) | Color display, device and display screen, the traffic lights of time allotment |
| CN108962930A (en) * | 2018-06-12 | 2018-12-07 | 南京阿吉必信息科技有限公司 | A kind of full-color array of display structure of LED and preparation method |
| CN110246832A (en) * | 2019-07-04 | 2019-09-17 | 深圳市思坦科技有限公司 | The preparation method and display device of a kind of luminescent device, luminescent device |
| CN115394216B (en) * | 2022-10-20 | 2023-07-14 | 季华实验室 | Display device and display equipment |
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| EP1339112A2 (en) * | 2002-02-15 | 2003-08-27 | Eastman Kodak Company | Organic electroluminescent device having stacked electroluminescent units |
| CN103872253A (en) * | 2012-12-18 | 2014-06-18 | 乐金显示有限公司 | White organic light emitting device |
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| US6274980B1 (en) * | 1998-11-16 | 2001-08-14 | The Trustees Of Princeton University | Single-color stacked organic light emitting device |
| CN101288343B (en) * | 2005-09-22 | 2010-08-25 | 松下电工株式会社 | Organic light emitting element and its manufacturing method |
| CN203596354U (en) * | 2013-10-30 | 2014-05-14 | 上海大学 | Organic electroluminescence diode parallel connected structure mode composite lighting device |
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| TW453132B (en) * | 1997-02-03 | 2001-09-01 | Univ Princeton | Stacked organic light emitting devices |
| EP1339112A2 (en) * | 2002-02-15 | 2003-08-27 | Eastman Kodak Company | Organic electroluminescent device having stacked electroluminescent units |
| CN103872253A (en) * | 2012-12-18 | 2014-06-18 | 乐金显示有限公司 | White organic light emitting device |
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