CN110071222A - A kind of luminescent device, display panel and display device - Google Patents
A kind of luminescent device, display panel and display device Download PDFInfo
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- CN110071222A CN110071222A CN201910339569.3A CN201910339569A CN110071222A CN 110071222 A CN110071222 A CN 110071222A CN 201910339569 A CN201910339569 A CN 201910339569A CN 110071222 A CN110071222 A CN 110071222A
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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
- H10K50/10—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
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- H—ELECTRICITY
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
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- H10K50/85—Arrangements for extracting light from the devices
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- H—ELECTRICITY
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- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
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Abstract
The invention discloses a kind of luminescent device, display panel and display devices, luminescent device includes the first electrode and second electrode being oppositely arranged, and emitting red light unit, green emitting unit and blue-light-emitting unit between the first electrode and the second electrode are set, the blue-light-emitting unit includes blue light-emitting layer and blue up-conversion luminous layer, the blue light-emitting layer can emit blue light under the excitation for the photon that emitting red light unit or green emitting unit emit for emitting blue light, the blue up-conversion luminous layer；To solve the problems, such as existing structure, there are blue light luminous efficiency and service life are low.
Description
Technical field
The present invention relates to field of display technology, especially a kind of luminescent device, display panel and display device.
Background technique
Organic Light Emitting Diode (Organic light-emitting diode, OLED) is since its active is luminous, preparation
Simple process, fast response time, visual angle be wide and a series of inherent advantages such as Flexible Displays may be implemented, and leads in recent years in display
More and more concerns and application have been obtained in terms of the especially small-medium size panel of domain.With more and more flagship mobile phones even in
Low-end mobile phone starts the screen using AMOLED material, it can be seen that the huge market potential of OLED, before wide application
Scape.
OLED is to generate three primary colours by red, green, blue luminescent organic molecule and then show various colors, wherein blue-light-emitting material
For material since its emission wavelength is short, energy bandgaps are wide, and carrier injection is relatively difficult；And blue light material is due to its special molecule
The reason of structure, carrier mobility ability is also relatively poor, adds visibility function, causes blue light luminous efficiency and service life far low
In feux rouges and green light.So blue light performance, which becomes, influences the unavoidable short slab that OLED is shown.
Summary of the invention
The technical problem to be solved by the invention is to provide a kind of luminescent device, display panel and display devices, with solution
Certainly existing structure has that blue light luminous efficiency and service life are low.
In order to solve the above-mentioned technical problems, the present invention provides a kind of luminescent devices, including the first electrode being oppositely arranged
And second electrode, and the luminescence unit being arranged between the first electrode and the second electrode, the luminescence unit packet
Emitting red light unit, green emitting unit and blue light-emitting layer are included, the blue light-emitting layer is equipped with blue up-conversion luminous layer,
The blue up-conversion luminous layer can emit blue under the excitation for the photon that emitting red light unit or green emitting unit emit
Light.
Optionally, the blue up-conversion luminous layer is stacked with the blue light-emitting layer.
Optionally, the blue up-conversion luminous layer and blue light-emitting layer doping are integral.
Optionally, the blue-light-emitting unit further includes electronic barrier layer, and the blue up-conversion luminous layer is located at described
Between electronic barrier layer and the blue light-emitting layer.
Optionally, the material of the blue up-conversion luminous layer includes the first luminescent material and the first sensitized material, described
First luminescent material replaces anthracene derivant or dendritic anthracene derivant using 9,10- bis-, and first sensitized material uses porphyrin palladium
Class complex.
Optionally, the material of the blue up-conversion luminous layer includes the first luminescent material and the first sensitized material, described
First luminescent material uses perylene, and first sensitized material uses metal platinum Pt (II) complex.
Optionally, the blue up-conversion luminous layer can emit blue under the excitation for the photon that green emitting unit emits
Light, the green emitting unit include green light emitting layer and Green upconversion luminescent layer, and the green light emitting layer is green for emitting
Light, the Green upconversion luminescent layer can emit green light under the excitation for the photon that emitting red light unit emits.
Optionally, the material of the Green upconversion luminescent layer includes the second luminescent material and the second sensitized material, described
Second luminescent material uses polybenzimidazoles, and second sensitized material uses metal platinum Pt (II) complex.
In order to solve the above-mentioned technical problem, the present invention also provides a kind of display panels, including luminescent device above-mentioned.
In order to solve the above-mentioned technical problem, the present invention also provides a kind of display devices, including display panel above-mentioned.
The present invention provides a kind of luminescent device, display panel and display devices, are existed by blue up-conversion luminous layer
Emit blue light under the excitation of emitting red light unit or the photon of green emitting unit transmitting, promotes luminous efficiency and the longevity of blue light
Life, and then improve the service life of OLED display.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by specification, right
Specifically noted structure is achieved and obtained in claim and attached drawing.
Detailed description of the invention
Attached drawing is used to provide to further understand technical solution of the present invention, and constitutes part of specification, with this
The embodiment of application technical solution for explaining the present invention together, does not constitute the limitation to technical solution of the present invention.
Fig. 1 is the structural schematic diagram one of luminescent device of the embodiment of the present invention；
Fig. 2 is the luminous mechanism figure of luminescent device of embodiment of the present invention conversion；
Fig. 3 is the structural schematic diagram two of luminescent device of the embodiment of the present invention；
Fig. 4 is the structural schematic diagram three of luminescent device of the embodiment of the present invention.
1-underlay substrate；2-hole transmission layers；3-electronic barrier layers；
4-luminescence units；5-hole blocking layers；6-electron transfer layers；
7-second electrodes；8-encapsulating materials；9-encapsulation cover plates；
10-blue up-conversion luminous layers；11-Green upconversion luminescent layers；401-emitting red light units；
402-green emitting units；403-blue-light-emitting units；4011- red light emitting layer
4021- green light emitting layer 4031- blue light-emitting layer
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention
Embodiment be described in detail.It should be noted that in the absence of conflict, in the embodiment and embodiment in the application
Feature can mutual any combination.
In order to solve the problems, such as existing structure there are blue light luminous efficiency and service life are low, the present invention provides a kind of photophores
Part, display panel and display device are emitted by blue up-conversion luminous layer in emitting red light unit or green emitting unit
Photon excitation under emit blue light, promote luminous efficiency and the service life of blue light, and then improve the service life of OLED display.
Below by specific embodiment, the technical solution that the present invention will be described in detail.
First embodiment
Fig. 1 is the structural schematic diagram one of luminescent device of the embodiment of the present invention.As shown in Figure 1, hair provided by the present embodiment
Optical device, including underlay substrate 1, hole transmission layer 2, luminescence unit 4, hole set on the setting of 1 stacked above one another of underlay substrate hinder
Barrier 5, electron transfer layer 6 and second electrode 7, second electrode 7 are equipped with encapsulating material 8 and encapsulation cover plate 9, second electrode
7 be cathode, and underlay substrate 1 is equipped with first electrode, and first electrode is anode；Luminescence unit 4 includes spaced red hair
Light unit 401, green emitting unit 402 and blue-light-emitting unit 403, blue-light-emitting unit 403 include blue light-emitting layer 4031
With blue up-conversion luminous layer 10, for blue light-emitting layer 4031 for emitting blue light, blue up-conversion luminous layer 10 can be in green
Emit blue light under the excitation for the photon that luminescence unit 402 emits, to promote luminous efficiency and the service life of blue light, and then improves
The service life of OLED display.
As shown in Figure 1, blue up-conversion luminous layer 10 is stacked with blue light-emitting layer 4031.Blue up-conversion luminous layer
10 the preparation method comprises the following steps: before blue light-emitting layer 4031 is deposited, blue up-conversion luminous layer 10 is individually first deposited, then in blue
Blue light-emitting layer 4031 is deposited on up-conversion luminescence layer 10.Further, blue-light-emitting unit 403 further includes electronic barrier layer 3,
Blue up-conversion luminous layer 10 is between electronic barrier layer 3 and blue light-emitting layer 4031.
In the present embodiment, blue up-conversion luminous layer 10 includes the first luminescent material and the first sensitized material, by the first hair
Luminescent material and the first sensitized material, which are entrained in, is formed together blue up-conversion luminous layer 10.Wherein, the first sensitized material and first
The ratio of luminescent material is 1:20-1:5.First sensitized material is entrained in the first luminescent material, makes blue up-conversion luminous layer
10 during occurring dexter energy transfer (Dexter energy transfer), and the first sensitized material is entrained in light emitting molecule,
Realization emits blue light under the excitation for the photon that green emitting unit emits.
Blue up-conversion luminous layer 10 in the present embodiment is by up-conversion luminescence principle, in the transmitting of green emitting unit
Emit blue light under the excitation of photon.Up-conversion luminescence be also known as trans- Stokes shine (Anti-Stokes), principle just with
Stokes' law is on the contrary, i.e. light emitting molecule can launch the light than excitation wave length under the excitation of long wavelength light.And base
It is by triplet-triplet energies transfer, TTET (usually Dexter in the up-conversion luminescence of T-T annihilation
Energy transfer) and T-T annihilation, two processes of TTA convert the short of higher energy for the long wavelength light of low energy
Wavelength light.First luminescent material is done light emitting molecule by the blue up-conversion luminous layer 10 in the present embodiment, and is selected suitably
Part green energy is converted blue light by first sensitizer, promotes luminous efficiency and the service life of blue light, and then improves OLED and show
The service life of device.
Fig. 2 is the luminous mechanism figure of luminescent device of embodiment of the present invention conversion.As shown in Fig. 2, choosing suitably has three
The fluorescent material that weight state-triplet buries in oblivion effect is used as the first luminescent material, and selects suitable sensitized material as first
Sensitized material, to be sensitized to the first luminescent material.First sensitized material is donor molecule (Donor), the first luminescent material
For acceptor molecule (Accceptor).Donor molecule absorbs the photon that green luminescence unit issues, to become singlet state from ground state
Excitation state (S1D), since high energy excitation state is unstable, it can be transferred to three lines by altering jump between being with higher quantum conversion rate
State excitation state (T1D).When acceptor molecule and blue light molecule are close to each other, molecular orbit can overlap and carry out electron exchange,
Triplet (T1A) blue light emitting molecule of excitation state is obtained by Dexter energy transfer, ground state is returned in donor molecule transition.When three
The acceptor molecule of weight excitation state reaches a certain concentration, and two intermolecular T-T annihilation processes will occur.One
Molecular transition returns ground state, and another molecule is excited to the higher singlet excited of energy level (S1A).In singlet excited
Molecule retracts ground state in a manner of radiation transistion, is simultaneously emitted by blue light.Since the service life of blue emitting phosphor OLED is very short, do not have practical
It property and is not easy to realize dark blue light, the blue light emitting molecule used in industry at present is organic fluorescence materials, and fluorescent molecule will be by
It is limited to the limitation of spin statistics, the 25% singlet exciton utilization rate upper limit makes its efficiency far below green light and feux rouges.The party
Case is used the singlet exciton that is converted into and can shine by the 75% triplet excitons part generated, is improved
The luminous efficiency of blue light.First luminescent material is done using the fluorescent molecule with TTA effect, its internal quantum efficiency can be made maximum
Promote 37.5%.
As shown in Fig. 2, the first luminescent material is organic fluorescence molecule, and band gap is in corresponding wave-length coverage, right
The wavelength (λ) answered is 450~460nm.First luminescent material has apparent triplet state-triplet state annihilation effect, and first shines
Material level-density parameter: E (T1D) is suitably larger than E (T1A), is prone to Dexter energy transfer between the two；E (S1D) palpus
Less than E (S1A), can be excited with the long wavelength light that satisfaction is less than blue light energy；2 times of E (T1A) must be greater than E (S1A),
To ensure that triplet state-triplet state annihilation can occur.
In the present embodiment, the first sensitized material can stronger absorption green light, and have the longer triplet excited state service life.
First sensitized material is entrained in the first luminescent material with higher concentration, so that Dexter energy transfer can occur, for example,
The distance between molecule of the molecule of first sensitized material and the first luminescent material is less than 1nm.
In the present embodiment, the first luminescent material replaces anthracene derivant or dendritic anthracene derivant using 9,10- bis-.Wherein, 9,
10- bis- replaces the Fluorescent peal of anthracene derivant in 412-478nm, has compared with high-fluorescence quantum yield, when selecting suitable the
One sensitized material can get blue up-conversion fluorescence under the excitation of 532nm wavelength light, for example, the first luminescent material is using following point
The 9,10- bis- of minor structure replaces anthracene derivant:
The Fluorescent peal of dendritic anthracene derivant is in 430nm, with very high fluorescence quantum yield.When selection suitable first
Sensitized material can get ideal blue up-conversion fluorescence under the excitation of 532nm wavelength light.For example, the first luminescent material is adopted
With the dendritic anthracene derivant of following molecular structure:
First sensitized material alters jump efficiency between need to having very high singlet-triplet state gap, and the first sensitized material is generally more
Cyclometalated conjunction object, such as Polypyridine ruthenium complex and porphyrin/phthalocyanine complex.In the present embodiment, the first sensitized material is used
Porphyrin palladium class complex, for example, using the porphyrin palladium class complex of following molecular structure:
Second embodiment
Fig. 3 is the structural schematic diagram two of luminescent device of the embodiment of the present invention.As shown in figure 3, the present embodiment luminescent device with
Aforementioned first embodiment luminescent device is essentially identical, the difference is that blue up-conversion luminous layer 10 can be in emitting red light list
Emit blue light under the excitation of the photon of 401 transmitting of member, to promote luminous efficiency and the service life of blue light, and then improves OLED and show
The service life of device.
In the present embodiment, blue up-conversion luminous layer 10 includes the first luminescent material and the first sensitized material, by the first hair
Luminescent material and the first sensitized material, which are entrained in, is formed together blue up-conversion luminous layer 10.Wherein, the first sensitized material and first
The ratio of luminescent material is 1:20-1:5.First sensitized material is entrained in the first luminescent material, makes blue up-conversion luminous layer
10 during occurring dexter energy transfer (Dexter energy transfer), and the first sensitized material is entrained in light emitting molecule,
Realization emits blue light under the excitation for the photon that emitting red light unit 401 emits.
First sensitized material needs to have biggish absorption, and its energy level and blue up-conversion molecule energy in red light wavelength area
Grade matching.In the program, red light luminescent layer 401 and 402 structure of green light emitting layer are remained unchanged, and selecting suitably has fluorescence effect
The TTA molecule answered does the first luminescent material, and the first sensitized material for absorbing feux rouges is entrained in the first luminous material with proper ratio
In material.By converting blue light emitting for the energy of part feux rouges, to promote the luminous efficiency of blue light.
In the present embodiment, the first luminescent material uses perylene (Perylene), and the molecular structural formula of perylene is such as
Under:
Corresponding, the first sensitized material uses metal platinum Pt (II) complex, for example, the first sensitized material using Pt-1 or
Person Pt-2.The molecular structural formula of Pt-1 and Pt-2 is as follows:
Use Pt-1 or Pt-2 to be entrained in perylene as the first sensitized material, makees when using 635nm wavelength light
For excitation light source, perylene can issue the blue light of varying strength, and luminous peak position is in 450nm or so.The luminosity table of material
First luminescent material of such bright molecule suitable for OLED.
3rd embodiment
Fig. 4 is the structural schematic diagram three of luminescent device of the embodiment of the present invention.As shown in figure 4, the present embodiment luminescent device with
Aforementioned first embodiment luminescent device is essentially identical, the difference is that blue up-conversion luminous layer 10 can be in green emitting list
Emit blue light under the excitation of the photon of 402 transmitting of member, green emitting unit 402 includes converting in green light emitting layer 4021 and green
Luminescent layer 11, Green upconversion luminescent layer 11 can emit green light under the excitation for the photon that emitting red light unit 401 emits.From
And luminous efficiency and the service life of green light and blue light are promoted, and then improve the service life of OLED display.
In the present embodiment, 401 structure of red light luminescent layer is remained unchanged.Green upconversion luminescent layer 11 includes the second luminous material
Material and the second sensitized material are selected and suitably do the second luminescent material with the TTA molecule of fluorescent effect, will absorb the of feux rouges
Two sensitized materials are entrained in the second luminescent material with proper ratio.Wherein, the ratio of the second sensitized material and the second luminescent material
Example is 1:20-1:5.Second sensitized material is entrained in the second luminescent material, makes Green upconversion luminescent layer 11 that moral gram occur
During this special energy transfer (Dexter energy transfer), the second sensitized material is entrained in light emitting molecule, is realized and is sent out in red
Emit green light under the excitation for the photon that light unit 401 emits.
In the present embodiment, the suitably TTA molecule with fluorescent effect is selected to do the first luminescent material, wherein first is quick
The ratio for changing material and the first luminescent material is 1:20-1:5.The first sensitized material for absorbing green light is entrained in proper ratio
In first luminescent material.By converting green luminescence for the energy of part feux rouges, then by converting the energy of part green light
For blue light emitting, to promote the luminous efficiency of blue light.
In the present embodiment, the second sensitized material can stronger absorption feux rouges, and have the longer triplet excited state service life.
Second sensitized material is entrained in the second luminescent material with higher concentration, so that Dexter energy transfer can occur, for example,
The distance between molecule of the molecule of second sensitized material and the second luminescent material is less than 1nm.
In the present embodiment, the second luminescent material uses polybenzimidazoles (PBI), and the molecular structural formula of polybenzimidazoles is such as
Under:
It is corresponding, the second sensitized material use metal platinum Pt (II) complex, for example, the second sensitized material using Pt-1,
Pt-2 or Pt-3.The molecular structural formula of Pt-1, Pt-2 and Pt-3 are as follows:
Use Pt-1, Pt-2 or Pt-3 to be entrained in polybenzimidazoles molecule as the second sensitized material, works as utilization
635nm wavelength light is as excitation light source, and PBI can issue the green light of varying strength, and main light emission peak position is in 540nm or so.Material
Luminosity shows such molecule conversion layer on the green light OLED.
Fourth embodiment
The present embodiment luminescent device and aforementioned first embodiment luminescent device are essentially identical, the difference is that turning in blue
Changing photosphere can directly adulterate with blue light-emitting layer together, i.e., directly send out the material of blue up-conversion luminous layer with blue
The material doped of photosphere is formed together.For example, the material of blue up-conversion luminous layer includes that the first luminescent material and first are quick
Change material, the first luminescent material is identical as the luminescent material of blue light-emitting layer, in the preparation, directly adulterates the first sensitized material
In blue light-emitting layer, use the luminescent material in blue light-emitting layer as the first luminescent material.Wherein, the first sensitization
The ratio of material and the first luminescent material is 1:20-1:5.First sensitized material is entrained in the first luminescent material, is made in blue
Luminescent layer 10 is converted during dexter energy transfer (Dexter energy transfer) occurs, the first sensitized material is entrained in hair
In optical molecule, realization emits blue light under the excitation for the photon that green emitting unit emits.
5th embodiment
Technical concept based on previous embodiment, the present invention also provides a kind of display panels, including previous embodiment
Luminescent device.
Sixth embodiment
Technical concept based on previous embodiment, the present invention also provides a kind of display devices, including previous embodiment
Display panel.
In the description of the embodiment of the present invention, it is to be understood that term " middle part ", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "vertical", "horizontal", "top", "bottom" "inner", "outside" be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In the description of the embodiment of the present invention, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Although disclosed herein embodiment it is as above, the content only for ease of understanding the present invention and use
Embodiment is not intended to limit the invention.Technical staff in any fields of the present invention is taken off not departing from the present invention
Under the premise of the spirit and scope of dew, any modification and variation, but the present invention can be carried out in the form and details of implementation
Scope of patent protection, still should be subject to the scope of the claims as defined in the appended claims.
Claims (10)
1. a kind of luminescent device, which is characterized in that including the first electrode and second electrode being oppositely arranged, and be arranged described
Emitting red light unit, green emitting unit and blue-light-emitting unit between first electrode and the second electrode, the blue
Luminescence unit includes blue light-emitting layer and blue up-conversion luminous layer, and the blue light-emitting layer is for emitting blue light, the blue
Up-conversion luminescence layer can emit blue light under the excitation for the photon that emitting red light unit or green emitting unit emit.
2. luminescent device according to claim 1, which is characterized in that the blue up-conversion luminous layer and the blue are sent out
Photosphere is stacked.
3. luminescent device according to claim 1, which is characterized in that the blue up-conversion luminous layer and the blue are sent out
Photosphere doping is integral.
4. luminescent device according to claim 2, which is characterized in that the blue-light-emitting unit further includes electronic blocking
Layer, the blue up-conversion luminous layer is between the electronic barrier layer and the blue light-emitting layer.
5. luminescent device according to claim 1, which is characterized in that the material of the blue up-conversion luminous layer includes the
One luminescent material and the first sensitized material, first luminescent material replace anthracene derivant or dendritic anthracene derivative using 9,10- bis-
Object, first sensitized material use porphyrin palladium class complex.
6. luminescent device according to claim 1, which is characterized in that the material of the blue up-conversion luminous layer includes the
One luminescent material and the first sensitized material, first luminescent material use perylene, and first sensitized material is using gold
Belong to platinum Pt (II) complex.
7. luminescent device according to claim 1, which is characterized in that the blue up-conversion luminous layer can be sent out in green
Emit blue light under the excitation of the photon of light unit transmitting, the green emitting unit includes converting hair in green light emitting layer and green
Photosphere, the green light emitting layer can be in the transmittings of emitting red light unit for emitting green light, the Green upconversion luminescent layer
Emit green light under the excitation of photon.
8. luminescent device according to claim 7, which is characterized in that the material of the Green upconversion luminescent layer includes the
Two luminescent materials and the second sensitized material, second luminescent material use polybenzimidazoles, and second sensitized material uses
Metal platinum Pt (II) complex.
9. a kind of display panel, which is characterized in that including any luminescent device of the claims 1-8.
10. a kind of display device, which is characterized in that including display panel described in the claims 9.
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| CN201910339569.3A CN110071222B (en) | 2019-04-25 | 2019-04-25 | Light-emitting device, display panel and display device |
| PCT/CN2020/076592 WO2020215880A1 (en) | 2019-04-25 | 2020-02-25 | Light-emitting device, display panel and display device |
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| CN201910339569.3A CN110071222B (en) | 2019-04-25 | 2019-04-25 | Light-emitting device, display panel and display device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111450421A (en) * | 2020-04-10 | 2020-07-28 | 北京夏禾科技有限公司 | Wearable phototherapy device |
| CN111785850A (en) * | 2020-07-16 | 2020-10-16 | 京东方科技集团股份有限公司 | Light emitting device and display device |
| WO2020215880A1 (en) * | 2019-04-25 | 2020-10-29 | 京东方科技集团股份有限公司 | Light-emitting device, display panel and display device |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1937277A (en) * | 2006-10-30 | 2007-03-28 | 清华大学 | Organic electroluminescent white light device |
| US20110304263A1 (en) * | 2010-06-11 | 2011-12-15 | Universal Display Corporation | Triplet-Triplet Annihilation Up Conversion (TTA-UC) For Display and Lighting Applications |
| US20140358198A1 (en) * | 2011-12-13 | 2014-12-04 | Merck Patent Gmbh | Organic sensitizers for up-conversion |
| CN105280686A (en) * | 2015-10-23 | 2016-01-27 | 京东方科技集团股份有限公司 | Display panel and display apparatus |
| CN105514288A (en) * | 2014-10-13 | 2016-04-20 | 环球展览公司 | Novel compounds and uses in devices |
| CN105590945A (en) * | 2014-11-17 | 2016-05-18 | 北京维信诺科技有限公司 | Organic light-emitting display device containing quantum dots, display method and application thereof |
| CN106450025A (en) * | 2016-10-12 | 2017-02-22 | 深圳市华星光电技术有限公司 | Blue light compensating film and OLED display apparatus |
| WO2017184969A1 (en) * | 2016-04-22 | 2017-10-26 | The Trustees Of Princeton University | Solid-state organic intermediate-band photovoltaic devices |
| CN107591431A (en) * | 2017-09-15 | 2018-01-16 | 深圳市华星光电半导体显示技术有限公司 | A kind of color membrane substrates and display device |
| CN107634082A (en) * | 2017-07-13 | 2018-01-26 | 深圳市华星光电半导体显示技术有限公司 | Active light emitting display panel and its manufacture method |
| CN108417727A (en) * | 2018-04-04 | 2018-08-17 | 京东方科技集团股份有限公司 | A kind of OLED luminescent devices and preparation method thereof, display device |
| CN109037461A (en) * | 2018-07-13 | 2018-12-18 | 京东方科技集团股份有限公司 | A kind of blue light organic emissive diode, display base plate and display device |
| WO2019050812A1 (en) * | 2017-09-05 | 2019-03-14 | University Of Massachusetts | Triplet-triplet annihilation upconversion system, and compositions and methods thereof for drug delivery |
| US20190081268A1 (en) * | 2016-03-18 | 2019-03-14 | Sharp Kabushiki Kaisha | El element and method for manufacturing el element |
| CN109616581A (en) * | 2018-11-12 | 2019-04-12 | 成都中电熊猫显示科技有限公司 | Display panel and display device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110071222B (en) * | 2019-04-25 | 2021-04-23 | 京东方科技集团股份有限公司 | Light-emitting device, display panel and display device |
-
2019
- 2019-04-25 CN CN201910339569.3A patent/CN110071222B/en active Active
-
2020
- 2020-02-25 WO PCT/CN2020/076592 patent/WO2020215880A1/en active Application Filing
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1937277A (en) * | 2006-10-30 | 2007-03-28 | 清华大学 | Organic electroluminescent white light device |
| US20110304263A1 (en) * | 2010-06-11 | 2011-12-15 | Universal Display Corporation | Triplet-Triplet Annihilation Up Conversion (TTA-UC) For Display and Lighting Applications |
| US20140358198A1 (en) * | 2011-12-13 | 2014-12-04 | Merck Patent Gmbh | Organic sensitizers for up-conversion |
| CN105514288A (en) * | 2014-10-13 | 2016-04-20 | 环球展览公司 | Novel compounds and uses in devices |
| CN105590945A (en) * | 2014-11-17 | 2016-05-18 | 北京维信诺科技有限公司 | Organic light-emitting display device containing quantum dots, display method and application thereof |
| CN105280686A (en) * | 2015-10-23 | 2016-01-27 | 京东方科技集团股份有限公司 | Display panel and display apparatus |
| US20190081268A1 (en) * | 2016-03-18 | 2019-03-14 | Sharp Kabushiki Kaisha | El element and method for manufacturing el element |
| WO2017184969A1 (en) * | 2016-04-22 | 2017-10-26 | The Trustees Of Princeton University | Solid-state organic intermediate-band photovoltaic devices |
| CN106450025A (en) * | 2016-10-12 | 2017-02-22 | 深圳市华星光电技术有限公司 | Blue light compensating film and OLED display apparatus |
| CN107634082A (en) * | 2017-07-13 | 2018-01-26 | 深圳市华星光电半导体显示技术有限公司 | Active light emitting display panel and its manufacture method |
| WO2019050812A1 (en) * | 2017-09-05 | 2019-03-14 | University Of Massachusetts | Triplet-triplet annihilation upconversion system, and compositions and methods thereof for drug delivery |
| CN107591431A (en) * | 2017-09-15 | 2018-01-16 | 深圳市华星光电半导体显示技术有限公司 | A kind of color membrane substrates and display device |
| CN108417727A (en) * | 2018-04-04 | 2018-08-17 | 京东方科技集团股份有限公司 | A kind of OLED luminescent devices and preparation method thereof, display device |
| CN109037461A (en) * | 2018-07-13 | 2018-12-18 | 京东方科技集团股份有限公司 | A kind of blue light organic emissive diode, display base plate and display device |
| CN109616581A (en) * | 2018-11-12 | 2019-04-12 | 成都中电熊猫显示科技有限公司 | Display panel and display device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020215880A1 (en) * | 2019-04-25 | 2020-10-29 | 京东方科技集团股份有限公司 | Light-emitting device, display panel and display device |
| CN111450421A (en) * | 2020-04-10 | 2020-07-28 | 北京夏禾科技有限公司 | Wearable phototherapy device |
| CN111785850A (en) * | 2020-07-16 | 2020-10-16 | 京东方科技集团股份有限公司 | Light emitting device and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020215880A1 (en) | 2020-10-29 |
| CN110071222B (en) | 2021-04-23 |
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