CN107302017A - A kind of organic electroluminescence display panel and device - Google Patents
A kind of organic electroluminescence display panel and device Download PDFInfo
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- CN107302017A CN107302017A CN201710692166.8A CN201710692166A CN107302017A CN 107302017 A CN107302017 A CN 107302017A CN 201710692166 A CN201710692166 A CN 201710692166A CN 107302017 A CN107302017 A CN 107302017A
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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
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
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- H—ELECTRICITY
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- 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
- H10K50/115—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising active inorganic nanostructures, e.g. luminescent quantum dots
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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
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
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Abstract
The embodiments of the invention provide a kind of organic electroluminescence display panel and device, in the embodiment of the present invention, the doped quantum dot in the structure sheaf of organic luminescent device, can be in the case where not increasing each structure sheaf thickness, the light that luminescent layer is sent just is changed into the light of the corresponding color of organic luminescent device, the light of a variety of colors is sent to enable display panel to pass through each organic luminescent device, it should be noted that, each structure sheaf thickness is not increased, just the transmission in electronics and/or hole is not interfered with, and then does not interfere with the luminous efficiency and luminosity of luminescent layer；In addition, in above-mentioned organic electroluminescence display panel, the difference in the life-span of the luminescent material in any two kinds of organic luminescent devices is smaller, no more than predetermined threshold value, so above-mentioned organic electroluminescence display panel is in use for some time, the attenuation degree of the luminosity of each luminescent material is more or less the same, poor smaller, the problem of just the alleviating colour cast to a certain extent of luminosity of each luminescent material.
Description
【Technical field】
The present invention relates to organic light emitting display technical field, more particularly to a kind of organic electroluminescence display panel and device.
【Background technology】
Organic electroluminescence display panel has spontaneous light characteristic, compared to liquid crystal display, with quick response, it is more frivolous,
The advantages of wide viewing angle, low-power consumption, increasingly paid close attention to by market.
At present, can typically be set in organic electroluminescence display panel it is multiple glow respectively, the organic light emission of green glow and blue light
Device, wherein, it can be provided for sending out the corresponding color of the organic luminescent device in the luminescent layer of different organic luminescent device
The luminescent material of light, by adjust respectively glow, the brightness of the organic luminescent device of green glow and blue light, just can adjust organic hair
The color for the light that light display panel is sent, such as, by glowing, the luminosity of the organic luminescent device of green glow and blue light is all provided with
A certain brightness is set to, organic electroluminescence display panel will emit white light.
The color for the light that organic electroluminescence display panel is sent and glow, the brightness of the organic luminescent device of green glow and blue light
It is relevant.Wherein, the life-span of different luminescent materials is different.If in each organic luminescent device in above-mentioned organic electroluminescence display panel
Luminescent material life-span difference it is larger, i.e., the rate of decay difference of the luminosity of different luminescent material is larger, will lead
Organic electroluminescence display panel is caused to use after a period of time, the attenuation difference of the luminosity of different luminescent material is larger,
The luminosity decay of some luminescent materials is larger, and some decay are smaller, and this will cause bright between different luminescent materials
Degree difference is larger, so as to cause above-mentioned display panel when luminous, the situation of colour cast occurs.
【The content of the invention】
In view of this, the embodiments of the invention provide a kind of organic electroluminescence display panel and device, to solve existing skill
The problem of there is colour cast in use for some time in organic electroluminescence display panel in art.
On the one hand, the embodiments of the invention provide a kind of organic electroluminescence display panel, including underlay substrate, and it is arranged at
Multiple organic luminescent devices on the underlay substrate；The multiple organic luminescent device includes multiple for sending with first
First organic luminescent device of the light of color, multiple the second organic illuminators for being used to send the light with the second color
Part, and multiple the 3rd organic luminescent devices for being used to send the light with the 3rd color；
In first organic luminescent device, second organic luminescent device and the 3rd organic luminescent device
At least one organic luminescent device includes the structure sheaf doped with quantum dot, and the structure sheaf is located at the light emission side of luminescent layer, institute
The light that stating quantum dot is used to send the luminescent layer is converted to the light with this kind of organic luminescent device corresponding color；
The difference in the life-span for the luminescent material that the luminescent layer of every two kinds of organic luminescent devices in each organic luminescent device has
No more than predetermined threshold value.
On the other hand, the embodiments of the invention provide a kind of organic light-emitting display device, described device includes above-mentioned having
Machine light emitting display panel.
A technical scheme in above-mentioned technical proposal has the advantages that：
First, the doped quantum dot in the structure sheaf of organic luminescent device can not change the thickness of each structure sheaf, i.e., not
In the case of increasing each structure sheaf thickness, the light that luminescent layer is sent just is changed into the light of the corresponding color of organic luminescent device,
The light of a variety of colors is sent to enable display panel to pass through each organic luminescent device, it is necessary to which explanation, does not increase each
Structure sheaf thickness, does not just interfere with the transmission in electronics and/or hole, and then does not interfere with the luminous efficiency and luminance of luminescent layer
Degree；Second, in above-mentioned organic electroluminescence display panel, the difference in the life-span of the luminescent material in any two kinds of organic luminescent devices compared with
It is small, no more than predetermined threshold value, then above-mentioned organic electroluminescence display panel in use for some time, each luminescent material it is luminous
The attenuation degree of brightness is more or less the same, and the luminosity difference of each luminescent material is smaller, and colour cast is just alleviated to a certain extent
Problem.
【Brief description of the drawings】
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be attached to what is used required in embodiment
Figure is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this area
For those of ordinary skill, without having to pay creative labor, it can also be obtained according to these accompanying drawings other attached
Figure.
Fig. 1 is the schematic cross-section for the organic electroluminescence display panel that the embodiment of the present invention is provided；
Fig. 2 is the schematic cross-section for another organic electroluminescence display panel that the embodiment of the present invention is provided；
Fig. 3 is the schematic cross-section for another organic electroluminescence display panel that the embodiment of the present invention is provided；
Fig. 4 is the schematic cross-section for another organic electroluminescence display panel that the embodiment of the present invention is provided；
Fig. 5 is the schematic cross-section for another organic electroluminescence display panel that the embodiment of the present invention is provided；
Fig. 6 is the top view for the organic light-emitting display device that the embodiment of the present invention is provided.
【Embodiment】
In order to be better understood from technical scheme, the embodiment of the present invention is retouched in detail below in conjunction with the accompanying drawings
State.
It will be appreciated that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art obtained under the premise of creative work is not made it is all its
Its embodiment, belongs to the scope of protection of the invention.
The term used in embodiments of the present invention is the purpose only merely for description specific embodiment, and is not intended to be limiting
The present invention." one kind ", " described " and "the" of singulative used in the embodiment of the present invention and appended claims
It is also intended to including most forms, unless context clearly shows that other implications.
It should be appreciated that term "and/or" used herein is only a kind of incidence relation for describing affiliated partner, represent
There may be three kinds of relations, for example, A and/or B, can be represented：Individualism A, while there is A and B, individualism B these three
Situation.In addition, character "/" herein, it is a kind of relation of "or" to typically represent forward-backward correlation object.
Depending on linguistic context, word as used in this " if " can be construed to " ... when " or " when ...
When " or " in response to determining " or " in response to detection ".Similarly, depending on linguistic context, phrase " if it is determined that " or " if detection
(condition or event of statement) " can be construed to " when it is determined that when " or " in response to determine " or " when the detection (condition of statement
Or event) when " or " in response to detection (condition or event of statement) ".
In order to solve the problem of organic electroluminescence display panel has colour cast in use for some time in the prior art, this hair
Bright embodiment provides a kind of organic electroluminescence display panel 10, specifically, as shown in figure 1, Fig. 1 is organic hair in the embodiment of the present invention
The sectional view of light display panel 10, the organic electroluminescence display panel includes underlay substrate 11, and is arranged on underlay substrate 11
Multiple organic luminescent devices 12.Multiple organic luminescent devices 12 include multiple being used to send the of the light with the first color
One organic luminescent device 121, multiple the second organic luminescent devices 122, Yi Jiduo for being used to send the light with the second color
Individual the 3rd organic luminescent device 123 for being used to send the light with the 3rd color, the first organic luminescent device 121, second have
At least one of the organic luminescent device 123 of machine luminescent device 122 and the 3rd organic luminescent device is included doped with quantum dot
Structure sheaf, structure sheaf is located at the light emission side of luminescent layer 13, and quantum dot is used to the light that sends luminescent layer 13 and be converted to have
The luminescent layer tool of every two kinds of organic luminescent devices in the light of this kind of organic luminescent device corresponding color, each organic luminescent device
The difference in the life-span of some luminescent materials no more than predetermined threshold value.
Wherein, any of the above-described organic luminescent device 12 can also include negative electrode 21, electronics and note in addition to including luminescent layer 13
Enter layer 22, electron transfer layer 23, hole transmission layer 24, hole injection layer 25 and anode 26.Also it can be set on underlay substrate 11
There is pixel defining layer 27.Electron transfer layer 23, electron injecting layer 22 and negative electrode 21 are set in turn in the side of luminescent layer 13, empty
Cave transport layer 24, hole injection layer 25 and anode 26 are set in turn in the opposite side of luminescent layer 13.
Luminescent layer 13 can launch light, if organic luminescent device 12 is when luminous to the both sides of luminescent layer 13 respectively
Luminescent organic illuminator part is pushed up, anode 26 is reflecting electrode, and the light that luminescent layer 13 is launched is launched from negative electrode 21, not
Can launch from anode 26, under this case, by the electron transfer layer 23 in electronic light emitting devices 12, electron injecting layer 22 with
And the side where negative electrode 21 is referred to as light emission side；If organic luminescent device 12 is bottom luminescent organic illuminator part, negative electrode 21 is anti-
Radio pole, the light that luminescent layer 13 is launched is launched from anode 26, can't launch from negative electrode 21, this case
Under, the side where the hole transmission layer 24 in electronic light emitting devices 12, hole injection layer 25 and anode 26 is referred to as light extraction
Side；If organic luminescent device 12 is lighting at two sides organic luminescent device, the light that luminescent layer 13 is launched is from negative electrode 21 and anode
26 launch in the lump, under this case, by the electron transfer layer 23 in electronic light emitting devices 12, electron injecting layer 22 and the moon
Side where side where pole 21, and hole transmission layer 24, hole injection layer 25 and anode 26 is referred to as light emission side in the lump.
When will be defined as in the life-span：During duration required for the brightness decay to the 95% of original brightness of organic luminescent device,
Above-mentioned predetermined threshold value can be 500, and the unit in above-mentioned life-span can be hour.The condition in test life-span may be referred to：Test environment temperature
Spend for 25 DEG C, humidity 55%, darkroom (≤1LUX)；Test point is the central point of screen, and the current density for testing each sub-pixel is
50mA/cm2。
First, the doped quantum dot in the structure sheaf of organic luminescent device can not change the thickness of each structure sheaf, i.e., not
In the case of increasing each structure sheaf thickness, the light that luminescent layer is sent just is changed into the light of the corresponding color of organic luminescent device,
The light of a variety of colors is sent to enable display panel to pass through each organic luminescent device, it is necessary to which explanation, does not increase each
Structure sheaf thickness, does not just interfere with the transmission in electronics and/or hole, and then does not interfere with the luminous efficiency and luminance of luminescent layer
Degree；Second, in above-mentioned organic electroluminescence display panel, the difference in the life-span of the luminescent material in any two kinds of organic luminescent devices compared with
It is small, no more than predetermined threshold value, then above-mentioned organic electroluminescence display panel in use for some time, each luminescent material it is luminous
The attenuation degree of brightness is more or less the same, and the luminosity difference of each luminescent material is smaller, and colour cast is just alleviated to a certain extent
Problem.
Optionally, the first color, the second color and the 3rd color are respectively one kind in red, green and blueness.Having
Be provided with machine light emitting display panel glow, three kinds of organic luminescent devices of green glow and blue light, this just can ensure organic hair
Light display panel can by glowing, the organic luminescent device of green glow and blue light send the light of a variety of colors.Need explanation
, the first color, the second color and the 3rd color can also be other colors, and the embodiment of the present invention is to this without limit
It is fixed.
Optionally, the first organic luminescent device 121, the second organic luminescent device 122 and the 3rd organic luminescent device 123
It is top luminescent organic illuminator part, includes negative electrode 21, electron injecting layer 22 and electronics biography doped with the structure sheaf of quantum dot
At least one of defeated layer 23.For example, as shown in Fig. 2 the first organic luminescent device 121, the second organic luminescent device 122 and
3rd organic luminescent device 123 is top luminescent organic illuminator part, and the first organic luminescent device 121 is included doped with quantum
The structure sheaf of point 28, the structure sheaf doped with quantum dot 28 is electron transfer layer 23.
First, tied quantum dot-doped at least one of negative electrode 21, electron injecting layer 22 and electron transfer layer 23
In structure layer, the thickness of each structure sheaf can not be changed, i.e., in the case where not increasing each structure sheaf thickness, just sent luminescent layer
Light is changed into the light of the corresponding color of organic luminescent device, is sent with enabling display panel to pass through each organic luminescent device
The light of a variety of colors is not, it is necessary to which explanation, increases each structure sheaf thickness, just do not interfere with the transmission of electronics, enter without shadow
Ring the luminous efficiency and luminosity of luminescent layer；Second, if the material of quantum dot is graphene, the quantum dot can also improve electronics
Transmission speed so that electronics reached with the transmission speed in hole it is synchronous, and then cause organic luminescent device reach more preferable hair
Light state.
Optionally, the first organic luminescent device 121, the organic illuminator of second organic luminescent device 122 and the 3rd
Part 123 is bottom luminescent organic illuminator part, includes anode, hole injection layer and hole biography doped with the structure sheaf of quantum dot
At least one of defeated layer.For example, as shown in figure 3, the first organic luminescent device 121, the second organic luminescent device 122 and
Three organic luminescent devices 123 are to include doped with quantum in bottom luminescent organic illuminator part, the second organic luminescent device 122
The structure sheaf of point 29, the structure sheaf doped with quantum dot 29 is hole transmission layer 24.
, can not by quantum dot-doped at least one of anode, hole injection layer and hole transmission layer structure sheaf
Change the thickness of each structure sheaf, i.e., in the case where not increasing each structure sheaf thickness, being just changed into the light that luminescent layer is sent has
The light of the corresponding color of machine luminescent device, a variety of colors is sent to enable display panel to pass through each organic luminescent device
Light is not, it is necessary to which explanation, increases each structure sheaf thickness, just do not interfere with the transmission in hole, and then do not interfere with luminescent layer
Luminous efficiency and luminosity.
Optionally, the first organic luminescent device 121, the second organic luminescent device 122 and the 3rd organic luminescent device 123
It is lighting at two sides organic luminescent device, includes negative electrode, electron injecting layer and electron transfer layer doped with the structure sheaf of quantum dot
At least one of, and including at least one of anode, hole injection layer and hole transmission layer.For example, as shown in figure 4,
First organic luminescent device 121, the second organic luminescent device 122 and the 3rd organic luminescent device 123 are that lighting at two sides has
Include the structure sheaf doped with quantum dot 30 in machine luminescent device, the 3rd organic luminescent device 123, doped with quantum dot 30
Structure sheaf is electron transfer layer 23 and hole transmission layer 24.
By quantum dot-doped at least one of negative electrode 21, electron injecting layer 22 and electron transfer layer 23 structure sheaf
In, and by quantum dot-doped at least one of anode, hole injection layer and hole transmission layer structure sheaf, can be not
In the case of increasing each Laminate construction thickness of organic luminescent device, the light that luminescent layer is sent just is changed into organic luminescent device correspondence
Color light, the light of a variety of colors is sent to enable display panel to pass through each organic luminescent device, it is necessary to explanation
It is not increase each structure sheaf thickness, does not just interfere with the transmission in hole, and then does not interfere with the luminous efficiency of luminescent layer and light
Brightness.
Optionally, have the in the luminescent layer 13 that the first organic luminescent device 121 and the second organic luminescent device 122 include
One luminescent material, the first luminescent material is used to send the light with the first color, the second organic luminescent device 122 include to
Doped with the first quantum in a few structure sheaf, the first quantum dot is used to be converted to the light with the first color with second
There is the second luminescent material, the second luminescent material is used in the light of color, the luminescent layer that the 3rd organic luminescent device 123 includes
Send the light with the 3rd color.Wherein, at least one above-mentioned structure sheaf is located at the light emission side of luminescent layer 13.
Specifically, the first color is red, the second color is green, and the 3rd color is blueness, and the first luminescent material is red
Color phosphorescent light-emitting materials, the second luminescent material is blue-fluorescence luminescent material；Or, the first color is blueness, and the second color is
Green, the 3rd color is red, and the first luminescent material is blue-fluorescence luminescent material, and the second luminescent material is luminous for red phosphorescent
Material.
Because the life-span difference of the first luminescent material and the second luminescent material is less than predetermined threshold value, therefore, existing skill is solved
The problem of there is colour cast in use for some time in the display panel in art, in addition, the first luminescent material and the second luminescent material
Life-span be all higher than life-span of the luminescent material for green light, compared with prior art, improving organic electroluminescence display panel
Life-span.
Optionally, the first organic luminescent device 121, the second organic luminescent device 122 and the 3rd organic luminescent device 123 are wrapped
The luminescent layer 13 included is respectively provided with the 3rd luminescent material, and the 3rd luminescent material is used to send the light with the first color；Second has
Doped with the second quantum dot at least one structure sheaf that machine photophore 122 includes, the second quantum dot is used for having the first face
The light of color is converted to be mixed in the light with the second color, at least one structure sheaf that the 3rd organic luminescent device 123 includes
Miscellaneous to have the 3rd quantum dot, the 3rd quantum dot is used to the light with the first color being converted to the light with the 3rd color.Its
In, at least one above-mentioned structure sheaf is located at the light emission side of luminescent layer 13.
Specifically, the 3rd luminescent material is red phosphorescent luminescent material, the first color is red, the second color and the 3rd face
Color is respectively one kind in green and blueness；Or, the 3rd luminescent material is green phosphorescent luminescent material, and the first color is green,
Second color and the 3rd color are respectively one kind in red and blueness；Or, the 3rd luminescent material is blue-fluorescence luminescent material,
First color is blueness, and the second color and the 3rd color are respectively one kind in red and green.
Because the luminescent material that all organic luminescent devices are used is identical so that the luminescent device of each color declines with the time
Subtract identical, therefore, solve the problem of display panel of the prior art colour cast occurs in use for some time, in addition, working as
When the luminescent material that all organic luminescent devices are used is red phosphorescent luminescent material or blue-fluorescence luminescent material, red phosphorescent
The life-span of luminescent material or blue-fluorescence luminescent material is more than the life-span of green phosphorescent luminescent material, compared with prior art, this
Just the life-span of display panel is improved.Particularly, when the 3rd luminescent material is red phosphorescence material, it has high efficiency and length concurrently
The advantage in life-span so that the life-span of display panel and efficiency are improved simultaneously.
Optionally, the first organic luminescent device 121, the second organic luminescent device 122 and the 3rd organic luminescent device 123
Including luminescent layer 13 be respectively provided with the 4th luminescent material, the 4th luminescent material is used to send the light with the 4th color；First
Doped with the 4th quantum dot at least one structure sheaf that organic luminescent device 121 includes, the 4th quantum dot is used for having the
The light of four colors is converted to the light with the first color, at least one structure sheaf that the second organic luminescent device 122 includes
In doped with the 5th quantum dot, the 5th quantum dot is used to the light with the 4th color being converted to the light with the second color
Doped with the 6th quantum dot in line, at least one structure sheaf that the 3rd organic luminescent device 123 includes, the 6th quantum dot is used for will
Light with the 4th color is converted to the light with the 3rd color.Wherein, at least one above-mentioned structure sheaf is located at luminescent layer
13 light emission side.Above-mentioned 4th kind of color can be other random colors in addition to red, green and blue.It should be noted that this
In the 4th luminescent material is not limited, the 4th luminescent material can be any high efficiency and long-life fluorescence luminescent material.
Because the luminescent material that all organic luminescent devices are used is identical so that the luminescent device of each color is identical with the decay of time,
Therefore, the problem of display panel of the prior art colour cast occurs in use for some time is solved.
Optionally, the material of above-mentioned quantum dot is graphene quantum dot material.
In a first aspect, when quantum dot material be graphene quantum dot material when, be entrained in negative electrode, electron transfer layer and
The quantum dot at least one structure sheaf in electron injecting layer, can promote the transmission speed of electronics so that electronics and hole
Transmission speed reaches synchronization, and then causes organic luminescent device to reach more preferable luminance.Second aspect, generally,
The transmission speed of electronics is less than the transmission speed in hole, in the prior art, is set sometimes between anode and hole injection layer
Hole-injecting Buffer Layer for Improvement, the transmission speed to reduce hole to cause electronics and the transmission speed in hole reach synchronous, and then causes
Organic luminescent device reaches more preferable luminance, in embodiments of the present invention, due in negative electrode, electron transfer layer and electronics
The doped quantum dot at least one structure sheaf in implanted layer, can improve the transmission speed of electronics, then just can reduce organic
The thickness of Hole-injecting Buffer Layer for Improvement in luminescent device, or directly remove Hole-injecting Buffer Layer for Improvement, it just can so reduce organic luminescent device
Integral thickness, the space further saved in organic luminous panel.The third aspect, graphene quantum dot can absorb high-energy
Light, launches the light of low energy, in addition, graphene quantum dot also has up-conversion luminescence performance, that is, absorbs the light of low energy, hair
Project the light of high-energy, such as, and the energy of blue light>The energy of red light>The energy of the light of green, in blueness
Light irradiation under, graphene quantum dot can launch red or green light, or, under the irradiation of red light, stone
Black alkene quantum dot emission goes out the light of blueness or green.
Optionally, the energy for the light that the luminescent layer included doped with the organic luminescent device of quantum dot is sent, more than this
The material of the quantum dot adulterated in the energy of the light of the corresponding color of organic luminescent device, the organic luminescent device be CdS,
CdSe、CdTe、ZnO、ZnSe、ZnTe、GaAs、GaP、GaAs、GaSb、HgS、HgSe、HgTe、InAs、InP、InSb、AlAs、
The materials such as AlP or AlSb.
Wherein, the quantum dot of above-mentioned material, can absorb the light of high-energy, launch the light of low energy, such as, blue
The energy of light>The energy of red light>The energy of the light of green, under the irradiation of the light of blueness, above-mentioned quantum dot
Red or green light can be launched, or under the irradiation of green light, above-mentioned quantum dot can launch the light of red.
Optionally, doped with quantum dot film in the organic luminescent device of quantum dot, is additionally provided with, quantum dot film is located at luminous
The light emission side of layer, quantum dot in quantum dot film is identical material and the quantum dot of identical size with the quantum dot of doping.For example,
Referring to Fig. 5, all organic luminescent devices are top illuminating device, in the electron transfer layer 23 of the first organic luminescent device 121
Quantum dot 28 is provided with, quantum dot is provided between the electron transfer layer 23 and electron injecting layer 22 of the organic luminescent device 121
Film 31.
Quantum dot film is set in the organic luminescent device doped with quantum dot, can be by the luminous of the organic luminescent device
The light that layer is sent more fully is converted into the light with the corresponding color of the organic luminescent device.If in addition, quantum dot film
Side of the negative electrode away from luminescent layer is arranged on, or is arranged on side of the anode away from luminescent layer, organic light emission can not increased
In the case of each Laminate construction thickness of device, the light that can send the luminescent layer of the organic luminescent device is more fully converted into
Light with the corresponding color of the organic luminescent device is not, it is necessary to which explanation, increases each structure sheaf thickness, just do not interfere with
Electronics and/or the transmission in hole, and then do not interfere with the luminous efficiency and luminosity of luminescent layer.
In addition, the embodiment of the present invention provides a kind of organic light-emitting display device, as shown in fig. 6, Fig. 6 is the embodiment of the present invention
The top view of the display device provided, display device includes above-described display panel 10.It is provided in an embodiment of the present invention
Display device can be for example smart mobile phone, wearable intelligent watch, intelligent glasses, tablet personal computer, television set, display,
Any product or part with display function such as notebook computer, DPF, navigator, Vehicular display device, e-book.
The technical scheme of the embodiment of the present invention has the advantages that：
In above-mentioned organic electroluminescence display panel, the difference in the life-span of the luminescent material in any two kinds of organic luminescent devices compared with
It is small, no more than predetermined threshold value, then above-mentioned organic electroluminescence display panel in use for some time, each luminescent material it is luminous
The attenuation degree of brightness is more or less the same, and the luminosity difference of each luminescent material is smaller, and colour cast is just alleviated to a certain extent
Problem.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements done etc. should be included within the scope of protection of the invention.
Claims (14)
1. a kind of organic electroluminescence display panel, it is characterised in that including underlay substrate, and be arranged on the underlay substrate
Multiple organic luminescent devices；The multiple organic luminescent device includes multiple for sending first of the light with the first color
Organic luminescent device, multiple the second organic luminescent devices for being used to send the light with the second color, and it is multiple for sending out
Go out to have the 3rd organic luminescent device of the light of the 3rd color；
In first organic luminescent device, second organic luminescent device and the 3rd organic luminescent device at least
A kind of organic luminescent device includes the structure sheaf doped with quantum dot, and the structure sheaf is located at the light emission side of luminescent layer, the amount
Son is put is converted to the light with this kind of organic luminescent device corresponding color for the light for sending the luminescent layer；
The difference in the life-span for the luminescent material that the luminescent layer of every two kinds of organic luminescent devices in each organic luminescent device has is little
In predetermined threshold value.
2. display panel as claimed in claim 1, it is characterised in that：First color, second color and described
3rd color is respectively one kind in red, green and blueness.
3. display panel as claimed in claim 1, it is characterised in that：
There is the first luminescent material in the luminescent layer that first organic luminescent device and second organic luminescent device include,
First luminescent material is used to send the light with the first color；
Doped with the first quantum dot at least one structure sheaf that second organic luminescent device includes, first quantum dot
For the light with the first color to be converted into the light with the second color；
There is the second luminescent material, second luminescent material is used to send out in the luminescent layer that 3rd organic luminescent device includes
Go out there is the light of the 3rd color.
4. display panel according to claim 3, it is characterised in that：
First color is red, and second color is green, and the 3rd color is blueness, first luminescent material
For red phosphorescent luminescent material, second luminescent material is blue-fluorescence luminescent material；
Or,
First color is blueness, and second color is green, and the 3rd color is red, first luminescent material
For blue-fluorescence luminescent material, second luminescent material is red phosphorescent luminescent material.
5. display panel as claimed in claim 1, it is characterised in that first organic luminescent device, described second organic
The luminescent layer that luminescent device and the 3rd organic luminescent device include is respectively provided with the 3rd luminescent material, the 3rd luminescent material
There is the light of the first color for sending；
Doped with the second quantum dot at least one structure sheaf that second organic luminescent device includes, second quantum dot
For the light with the first color to be converted into the light with the second color, the 3rd organic luminescent device include to
Doped with the 3rd quantum dot in a few structure sheaf, the 3rd quantum dot is used to the light with the first color being converted to tool
There is the light of the 3rd color.
6. display panel according to claim 5, it is characterised in that：
3rd luminescent material is red phosphorescent luminescent material, and first color is red, second color and described
3rd color is respectively one kind in green and blueness；
Or,
3rd luminescent material is green phosphorescent luminescent material, and first color is green, second color and described
3rd color is respectively one kind in red and blueness；
Or,
3rd luminescent material is blue-fluorescence luminescent material, and first color is blueness, second color and described
3rd color is respectively one kind in red and green.
7. display panel as claimed in claim 1, it is characterised in that first organic luminescent device, described second organic
The luminescent layer that luminescent device and the 3rd organic luminescent device include is respectively provided with the 4th luminescent material, the described 4th luminous material
Expect for sending the light with the 4th color；
Doped with the 4th quantum dot at least one structure sheaf that first organic luminescent device includes, the 4th quantum dot
For the light with the 4th color to be converted into the light with the first color, second organic luminescent device include to
Doped with the 5th quantum dot in a few structure sheaf, the 5th quantum dot is used to the light with the 4th color being converted to tool
Have in the light of the second color, at least one structure sheaf that the 3rd organic luminescent device includes doped with the 6th quantum dot,
6th quantum dot is used to the light with the 4th color being converted to the light with the 3rd color.
8. display panel as claimed in claim 1, it is characterised in that first organic luminescent device, described second organic
Luminescent device and the 3rd organic luminescent device are top luminescent organic illuminator part, the structure doped with quantum dot
Layer includes at least one of negative electrode, electron injecting layer and electron transfer layer.
9. display panel as claimed in claim 1, it is characterised in that first organic luminescent device, described second organic
Luminescent device and the 3rd organic luminescent device are bottom luminescent organic illuminator part, the structure doped with quantum dot
Layer includes at least one of anode, hole injection layer and hole transmission layer.
10. display panel as claimed in claim 1, it is characterised in that first organic luminescent device, described second organic
Luminescent device and the 3rd organic luminescent device are lighting at two sides organic luminescent device, the knot doped with quantum dot
Structure layer includes at least one of negative electrode, electron injecting layer and electron transfer layer, and including anode, hole injection layer and hole
At least one of transport layer.
11. display panel as claimed in claim 1, it is characterised in that doped with the organic luminescent device of quantum dot, also set
Quantum dot film is equipped with, the quantum dot film is located at quantum dot and the amount of doping in the light emission side of luminescent layer, the quantum dot film
Son point is identical material and the quantum dot of identical size.
12. display panel as claimed in claim 1, it is characterised in that the material of the quantum dot is graphene quantum dot material
Material.
13. display panel as claimed in claim 1, it is characterised in that include doped with the organic luminescent device of quantum dot
The energy for the light that luminescent layer is sent, more than the energy of the light of the organic luminescent device corresponding color, the organic luminescent device
The material of the quantum dot of middle doping be CdS, CdSe, CdTe, ZnO, ZnSe, ZnTe, GaAs, GaP, GaAs, GaSb, HgS,
The materials such as HgSe, HgTe, InAs, InP, InSb, AlAs, AlP or AlSb.
14. a kind of organic light-emitting display device, it is characterised in that the display device is included such as any one of claim 1~13
Described organic electroluminescence display panel.
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