CN109411626A - Organic luminescent device and preparation method thereof, lighting device - Google Patents
Organic luminescent device and preparation method thereof, lighting device Download PDFInfo
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- CN109411626A CN109411626A CN201811275406.5A CN201811275406A CN109411626A CN 109411626 A CN109411626 A CN 109411626A CN 201811275406 A CN201811275406 A CN 201811275406A CN 109411626 A CN109411626 A CN 109411626A
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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
- H10K50/86—Arrangements for improving contrast, e.g. preventing reflection of ambient light
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
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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
- H10K59/32—Stacked devices having two or more layers, each emitting at different wavelengths
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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
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K2102/00—Constructional details relating to the organic devices covered by this subclass
- H10K2102/301—Details of OLEDs
- H10K2102/302—Details of OLEDs of OLED structures
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Abstract
The present invention provides a kind of organic luminescent devices and preparation method thereof, lighting device, belong to field of luminescent technology.The organic luminescent device includes: substrate, and the first electrode layer of setting is sequentially overlapped on substrate, luminescent layer and the second electrode lay, luminescent layer includes: second luminescence unit of n the first luminescence units and flood arrangement, n the first luminescence units and the second luminescence unit are superposed, the light emission color temperature of first luminescence unit and the second luminescence unit is different, n >=1, each electrode layer in first electrode layer and the second electrode lay includes: first electrode block corresponding with first area, with second electrode block corresponding with second area, first area is the first luminescence unit region, second area is the region in addition to the first luminescence unit region, each electrode block is configured as the corresponding region on-load voltage to luminescent layer.The present invention solves the problems, such as that the preparation efficiency of organic luminescent device is lower.The present invention is used to prepare organic luminescent device.
Description
Technical field
The present invention relates to field of luminescent technology, in particular to a kind of organic luminescent device and preparation method thereof, lighting device.
Background technique
With the development of science and technology, organic luminescent device using more and more extensive, as organic luminescent device can be used for shining
The fields such as bright and display.
In the related technology, organic luminescent device generally includes substrate, and a variety of luminescence units on the substrate, should
A variety of luminescence units are used to issue the light of multiple color temperatures, by controlling at least one of a variety of luminescence units luminescence unit hair
Light, the colour temperature for the light that the adjustable organic luminescent device is issued.Since same layer is arranged a variety of luminescence units on substrate,
Therefore during preparing a variety of luminescence units, multiple mask process need to be used.
However, it is more using the time spent by multiple mask process, cause the preparation efficiency of organic luminescent device lower.
Summary of the invention
This application provides a kind of organic luminescent devices and preparation method thereof, lighting device, can solve in the related technology
The lower problem of the preparation efficiency of organic luminescent device, the technical solution is as follows:
On the one hand, a kind of organic luminescent device is provided, the organic luminescent device includes: substrate, and in the substrate
On be sequentially overlapped first electrode layer, luminescent layer and the second electrode lay of setting,
The luminescent layer includes: second luminescence unit of n the first luminescence units and flood arrangement, the n first hair
Light unit and second luminescence unit are superposed, the light emission color temperature of first luminescence unit and second luminescence unit
Difference, n >=1,
Each electrode layer in the first electrode layer and the second electrode lay includes: corresponding with first area first
Electrode block, and second electrode block corresponding with second area, the first area are first luminescence unit region, institute
Stating second area is the region in addition to first luminescence unit region, and each electrode block is configured as shining to described
The corresponding region on-load voltage of layer.
Optionally, the n the first luminescence units include the first luminescence unit of different lengths.
Optionally, the substrate is rectangular configuration, and the n the first luminescence units are along first direction array arrangement, and institute
The length for stating n luminescence unit is gradually reduced from the center of the rectangular configuration to edge, the first direction and the substrate
Length direction there are inclination angles.
Optionally, the substrate is rectangular configuration, the n the first luminescence unit array arrangements, and institute in a second direction
The equal length of n luminescence unit is stated, the second direction is the length or width direction of the substrate.
Optionally, the n the first luminescence units include at least two luminescence units, at least two luminescence units hair
The colour temperature of light is different out.
Optionally, the first electrode layer includes: insulation system, multiple first electrode blocks and multiple second electricity
Pole block, the multiple first electrode block and the n the first luminescence unit correspond.
Optionally, first luminescence unit is white-light emitting unit or Yellow light emitting unit, and the second luminescence unit is indigo plant
Light luminescence unit.
Optionally, the material of first luminescence unit includes: two carbazole biphenyl bases, the material of second luminescence unit
It include: aromatic radical benzimidazole.
On the other hand, a kind of preparation method of organic luminescent device is provided, which comprises
One substrate is provided；
First electrode layer, luminescent layer and the second electrode lay are sequentially formed on the substrate；
The luminescent layer includes: second luminescence unit of n the first luminescence units and flood arrangement, the n first hair
Light unit and second luminescence unit are superposed, the light emission color temperature of first luminescence unit and second luminescence unit
Difference, n >=1,
Each electrode layer in the first electrode layer and the second electrode lay includes: corresponding with first area first
Electrode block, and second electrode block corresponding with second area, the first area are first luminescence unit region, institute
Stating second area is the region in addition to first luminescence unit region, and each electrode block is configured as shining to described
The corresponding region on-load voltage of layer.
Another aspect, provides a kind of lighting device, and the lighting device includes above-mentioned organic luminescent device.
Technical solution provided by the present application has the benefit that due to the second luminescence unit flood cloth in luminescent layer
It sets, therefore, during the second luminescence unit formed on substrate in the luminescent layer, it is only necessary to the of flood is formed on substrate
Two luminescence units.Namely second luminescence unit is prepared without mask process, reduce and prepares the organic illuminator
The number of used mask process during part, improves the preparation efficiency of organic luminescent device.
It should be understood that the above general description and the following detailed description are merely exemplary, this can not be limited
Application.
Detailed description of the invention
In order to illustrate more clearly of the embodiment of the present invention, attached drawing needed in embodiment description will be made below
Simply introduce, it should be apparent that, drawings in the following description are only some embodiments of the invention, common for this field
For technical staff, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of organic luminescent device provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of another organic luminescent device provided in an embodiment of the present invention；
Fig. 3 is the schematic diagram of the middle section Fig. 2 A-A；
Fig. 4 is the schematic diagram of the middle section Fig. 2 B-B；
Fig. 5 is the structural schematic diagram of another organic luminescent device provided in an embodiment of the present invention；
Fig. 6 is the schematic diagram of the middle section Fig. 5 C-C；
Fig. 7 is the schematic diagram of the middle section Fig. 5 D-D；
Fig. 8 is the structural schematic diagram of another organic luminescent device provided in an embodiment of the present invention；
Fig. 9 is a kind of preparation method flow chart of organic luminescent device provided in an embodiment of the present invention；
Figure 10 is the preparation method flow chart of another organic luminescent device provided in an embodiment of the present invention；
Figure 11 is a kind of structural schematic diagram of substrate provided in an embodiment of the present invention；
Figure 12 is a kind of structural schematic diagram for the multiple first electrodes being formed on substrate provided in an embodiment of the present invention；
Figure 13 is a kind of structural schematic diagram for the multiple second electrodes being formed on substrate provided in an embodiment of the present invention；
Figure 14 is a kind of structural schematic diagram for the first electrode layer being formed on substrate provided in an embodiment of the present invention；
Figure 15 is a kind of hole injection layer being formed in first electrode layer provided in an embodiment of the present invention and hole transport
The structural schematic diagram of layer；
Figure 16 is a kind of structure of n the first luminescence units of formation provided in an embodiment of the present invention on the hole transport layer
Schematic diagram；
Figure 17 is a kind of structural schematic diagram of the luminescent layer of formation provided in an embodiment of the present invention on the hole transport layer.
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the application
Example, and together with specification it is used to explain the principle of the application.
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 make into
It is described in detail to one step, it is clear that the described embodiments are only some of the embodiments of the present invention, rather than whole implementation
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
All other embodiment, shall fall within the protection scope of the present invention.
Organic luminescent device using more and more extensive, such as organic luminescent device can be used for illuminating and showing field.
And during preparing organic luminescent device, multiple mask process need to be used, causes the preparation efficiency of organic luminescent device lower.
The embodiment of the invention provides a kind of organic luminescent device, used mask process during preparing the organic luminescent device
Number it is less, the preparation efficiency of the organic luminescent device is higher.
Fig. 1 is a kind of structural schematic diagram of organic luminescent device provided in an embodiment of the present invention, as shown in Figure 1, this is organic
Luminescent device 0 may include: substrate 00, and first electrode layer 01, the luminescent layer 02 of setting are sequentially overlapped on the substrate 00
And the second electrode lay 03.
Wherein, luminescent layer 02 may include: second luminescence unit 021 of n the first luminescence units 020 and flood arrangement,
The n the first luminescence units 020 and the second luminescence unit 021 are superposed, the first luminescence unit 020 and the second luminescence unit
021 light emission color temperature is different, n >=1.
Each electrode layer in first electrode layer 01 and the second electrode lay 03 includes: the first electricity corresponding with first area A1
Pole block (the first electrode block 010 in such as first electrode layer 01), and second electrode block corresponding with second area A2 (the such as first electricity
Second electrode block 011 in pole layer 01).First area A1 is 020 region of the first luminescence unit, and second area A2 is except this
Region except first luminescence unit, 020 region, each electrode block are configured as the corresponding region load to luminescent layer 02
Voltage.At least two are issued by the way that organic luminescent device for above-mentioned first area and/or second area on-load voltage, may be implemented
The light of colour temperature, the light of usually at least three kinds colour temperatures.
In conclusion in organic luminescent device provided in an embodiment of the present invention, since second in luminescent layer is luminous single
First flood arrangement, therefore, during the second luminescence unit formed on substrate in the luminescent layer, it is only necessary to be formed on substrate
Second luminescence unit of flood.Namely second luminescence unit is prepared without mask process, guaranteeing organic light emission
On the basis of device issues the light of at least two colour temperatures, reduce used mask during preparing the organic luminescent device
The number of technique improves the preparation efficiency of organic luminescent device.
Organic luminescent device is there are many type, such as (i.e. organic luminescent device is from the side far from substrate for top emission type
Shine), bottom emission type (i.e. organic luminescent device shines from side where substrate) and dual-side emissive type (i.e. organic luminescent device
It shines from the two sides of substrate-parallel).Substrate and electricity for the different type of organic luminescent device, in the organic luminescent device
Pole layer can be arranged in different ways, as long as guaranteeing that not blocking organic luminescent device shines.For example, working as organic illuminator
When the type of part 0 is top emission type, the second electrode lay 03 is transparent electrode layer, and first electrode layer 01 can be transparent electrode layer
It may be non-transparent electrode layer, substrate 00 can may be nontransparent substrate for transparent substrate；When organic luminescent device 0
When type is bottom emission type, substrate 00 is transparent substrate, and first electrode layer 01 is transparent electrode layer, and the second electrode lay 03 can be with
It is transparent electrode layer may be non-transparent electrode layer；When the type of organic luminescent device 0 is dual-side emissive type, substrate 00
For transparent substrate, first electrode layer 01 and the second electrode lay 03 are transparent electrode layer.
It should be noted that be directed to organic luminescent device provided in an embodiment of the present invention, the embodiment of the invention provides with
Under it is several control its colour temperature control modes, comprising:
The first control mode can pass through the first electricity being oppositely arranged in first electrode layer 01 and the second electrode lay 03
Pole block, to the first area A1 on-load voltage of luminescent layer 02, so that the first luminescence unit 020, and be located in the A1 of first area
The second luminescence unit 021 shine jointly.At this point, the colour temperature of the organic luminescent device 0 are as follows: the first luminescence unit 020, Yi Jiwei
In the mixing colour temperature for the light that the second luminescence unit 021 in first area issues jointly.
Second of control mode, can by first electrode layer 01 and the second electrode lay 03 be oppositely arranged second electricity
Pole block, to the second area A2 on-load voltage of luminescent layer 02, so that the second luminescence unit 021 being located in second area shines.
At this point, the colour temperature of the organic luminescent device 0 are as follows: the colour temperature for the light that the second luminescence unit 021 in second area issues.
The third control mode can pass through the first electricity being oppositely arranged in first electrode layer 01 and the second electrode lay 03
Pole block and second electrode block, to the equal on-load voltage of first area A1 and second area A2 of luminescent layer 02, so that first is luminous single
Member 020, the second luminescence unit 021 in first area A1 and second area A2 shine jointly, that is to say that luminescent layer 02 is whole
Layer shines.At this point, the colour temperature of the organic luminescent device 0 are as follows: the first luminescence unit 020 is located at first area A1 and second area
The mixing colour temperature for the light that the second luminescence unit 021 in A2 issues jointly.
Optionally, organic luminescent device 0 provided in an embodiment of the present invention can be used for issuing the white light of different-colour.It is optional
Ground, the first luminescence unit 020 can be white-light emitting unit, and the second luminescence unit 021 can be blue light emitting unit.Then it is directed to
The organic luminescent device 0, the embodiment of the invention provides following several control modes for controlling its colour temperature, comprising:
The first control mode, can be by the first electrode that is oppositely arranged in first electrode layer 01 and the second electrode lay 03
Block makes white luminous unit to the first area A1 on-load voltage of luminescent layer 02, and the blue hair in the A1 of first area
Light unit shines jointly.At this point, the colour temperature for the white light that the organic luminescent device 0 is issued are as follows: white luminous unit and be located at the
The mixing colour temperature for the light that blue-light-emitting unit in one region A1 issues jointly, and the colour temperature of the white light is smaller, tone is partially warm.Show
Example ground, the colour temperature of the white light can be 3000 Kelvins (also known as 3000K), and the chromaticity coordinate value of the white light can for (0.39,
0.41)。
Second of control mode, can be by the first electrode that is oppositely arranged in first electrode layer 01 and the second electrode lay 03
Block and second electrode block, to the equal on-load voltage of first area A1 and second area A2 of luminescent layer 02, so that white luminous unit,
It shines jointly with the blue-light-emitting unit being located in first area A1 and second area A2.At this point, the organic luminescent device 0 is sent out
The colour temperature of white light out are as follows: white luminous unit, the blue-light-emitting unit in first area A1 and second area A2 are common
The mixing colour temperature of the light of sending.Illustratively, the colour temperature of the white light can be 5000K, and the chromaticity coordinate value of the white light can be
(0.32,0.35), and the tone of the white light is colder.
Optionally, which can be also used for issuing the light (such as yellow light) of other colors, and first is luminous single
Member 020 can also be the luminescence unit (such as Yellow light emitting unit) for issuing the light of other colors, and the second luminescence unit 021 is also
It can be the luminescence unit (such as green luminescence unit) for issuing the light of other colors, the embodiment of the present invention does not limit this
It is fixed.Optionally, the colour temperature for the white light which is issued can also be other colour temperatures (such as 6500K), chromaticity coordinate
Value can also be other chromaticity coordinate values, and such as (0.29,0.33), the embodiment of the present invention is not construed as limiting this.
Optionally, when the first luminescence unit 020 is Yellow light emitting unit, the material of first luminescence unit 020 can be with
It include: two carbazole biphenyl bases, when the second luminescence unit 021 is blue light emitting unit, the material of second luminescence unit 021 can
To include: aromatic radical benzimidazole.Optionally, the first luminescence unit 020 and the second luminescence unit 021 can also include other
Material, the embodiment of the present invention are not construed as limiting this.
Optionally, each electrode block all can be independent block structure (such as first electrode block 010 in first electrode layer 01
With second electrode block 011), 03 in the second electrode lay in all electrode blocks form an en-block construction, i.e. the second electrode lay is
One flood structure.And can also include insulation system 012 in first electrode layer 01, which can be used for being isolated
The adjacent electrode of any two in first electrode layer 01.At this point it is possible to pass through 03 flood of the second electrode lay and first electrode layer
Electrode block in 01, to the corresponding region on-load voltage of luminescent layer 02.
Optionally, each electrode block in the second electrode lay 02 can also be independent block structure, and the present invention is implemented
Example is not construed as limiting this.
It should be noted that only including first luminescence unit 020 in Fig. 1 with luminescent layer 02, first electrode layer 01 is wrapped
For including a first electrode block 010 and a second electrode block 011.Optionally, which can also include other
Second luminescence unit 021 of number (such as two), first electrode layer 01 can also include the first electrode of other numbers (such as two)
The second electrode block 011 of block 010 and other numbers (such as two), the embodiment of the present invention is not construed as limiting this.
Fig. 2 is the structural schematic diagram of another organic luminescent device provided in an embodiment of the present invention, as shown in Fig. 2, in Fig. 1
On the basis of, n in organic luminescent device 0 the first luminescence units 020 may include multiple first luminescence units 020, and first
Electrode layer 01 may include: multiple first electrode blocks 010 and multiple second electrode blocks 011, and multiple first electrode blocks 010 and n
A first luminescence unit 020 corresponds.
It should be noted that can have between mutual corresponding first electrode block 010 and the first luminescence unit 020 following
Several corresponding relationships:
In the first corresponding relationship, orthographic projection of first luminescence unit 020 on substrate 00, with first luminescence unit
Orthographic projection of the 020 corresponding first electrode block 010 on substrate 00 is overlapped.
In second of corresponding relationship, orthographic projection of first luminescence unit 020 on substrate 00 is located at the first luminous list
First 020 corresponding first electrode block 010 is in the orthographic projection on substrate 00.It is illustrated only in Fig. 2 in several corresponding relationships
The first corresponding relationship.
The first area of luminescent layer 02 may include multiple first subregion A11, and second area may include multiple second
Subregion A21, multiple first subregion A11 and multiple first electrode blocks 010 correspond, multiple second subregion A21 and
Multiple second electrode blocks 011 correspond.Orthographic projection of each first subregion A11 on substrate 00, with first subregion
Orthographic projection of the corresponding first electrode block 010 of A11 on substrate 00 is overlapped；Each second subregion A21 on substrate 00 just
Projection, orthographic projection of the second electrode block 011 corresponding with the second subregion A21 on substrate 00 are overlapped.
First electrode block 010 and second electrode block 011 insulate, and first electrode block 010 and second electrode block 011 pass through first
Insulation system 012 in electrode layer 01 insulate, and multiple first electrode blocks 010 are by 012 mutually insulated of insulation system, multiple
Second electrode block 011 is also by 012 mutually insulated of insulation system.
Then be directed to the organic luminescent device, the embodiment of the invention provides it is following it is several control its colour temperature control modes,
Include:
The first control mode can pass through the first electrode block of p in the second electrode lay 03 and first electrode layer 01
010, to p the first subregion A11 on-load voltages in the first area of luminescent layer 02, so that the first of p is luminous single
Member 020, and the second luminescence unit 021 in p sub-regions A11 are luminous, and 1≤p≤P, P are the total of first electrode block
Number, can be equal to n.It should be noted that the number of above-mentioned first electrode block can be determined according to specific usage scenario, example
Such as, the luminous intensity of the first luminescence unit in the organic luminescent device is provided with multiple gears, and each gear corresponds to different
First electrode block number then can determine the number p of the first electrode block currently selected according to current desired gear.
Second of control mode can pass through the second electrode block of q in the second electrode lay 03 and first electrode layer 01
011, to q in the second area of luminescent layer 02 the second subregion A21 on-load voltages, so that being located at q the second subregions
The second luminescence unit 021 in A21 shines, and 1≤q≤Q, Q are the sum of second electrode block.It should be noted that above-mentioned second
The number of electrode block can be determining according to specific usage scenario, for example, the second luminescence unit in the organic luminescent device
Luminous intensity is provided with multiple gears, and each gear corresponds to different second electrode block numbers, then can be according to current desired shelves
Position determines the number q of the second electrode block currently selected.
It, can be with due to the electrode block number by adjusting pressurization in every kind of control mode of above two control mode
Realize that the dynamic adjustment of light emitting region is improved and shone so that the organic luminescent device 0 can issue the light of more kinds of colour temperatures
Flexibility.
Fig. 3 is the schematic diagram of the middle section Fig. 2 A-A, and incorporated by reference to Fig. 2 and Fig. 3, the substrate 00 in the organic luminescent device 0 can
Think rectangular configuration, and n the first luminescence unit 020 P2 array arrangements, and the length of the n luminescence unit 020 in a second direction
Spend it is equal, second direction P2 can be substrate 00 length or width direction.
Fig. 4 is the schematic diagram of the middle section Fig. 2 B-B, multiple first electrodes incorporated by reference to Fig. 2 to Fig. 4, in first electrode layer 01
Block 010 and multiple second electrode blocks 011 P2 array arrangement in a second direction.
Optionally, multiple first electrode block 010 and multiple second electrode blocks 011 can be arranged with the interval P2 in a second direction
Cloth.
Optionally, each first luminescence unit 020, each first electrode block 010 and each second electrode block 011 are in
Strip, and on second direction P2, the width of first electrode block 010 can be greater than the width of second electrode block 011.
Optionally, which can also be the structure (such as circular configuration) of other shapes, multiple first electrode blocks 010 and more
A second electrode block 011 P2 can also successively arrange in a second direction, the first luminescence unit 020, first electrode block 010 and
Two electrode blocks 011 can also be in other shapes (such as irregular), and on second direction P2, the width of first electrode block 010
Degree be also less than or equal to second electrode block 011 width, the embodiment of the present invention is not construed as limiting this.
It optionally, can also include the first luminescence unit 020 of other numbers (such as five), the first electricity in the luminescent layer 02
It can also include the first electrode block 010 of other numbers (such as five) and the second electrode of other numbers (such as four) in pole layer 01
Block 011, the embodiment of the present invention is not construed as limiting this.
Optionally, n the first luminescence units 020 may include at least two luminescence units, and at least two luminous list
The colour temperature that member issues light is different.Then be directed to the organic luminescent device 0, the embodiment of the invention provides it is following it is several control its
The control mode of colour temperature, comprising:
The first control mode, can be to where i-th kind of luminescence unit in n in luminescent layer 02 the first luminescence units 020
Region on-load voltage, so that i-th kind of luminescence unit, and shine positioned at the second of i-th kind of luminescence unit region
Unit 021 shines jointly, and 1≤i≤I, I are the species number of luminescence unit in n the first luminescence units 020, can be equal to n.
It should be noted that i-th kind of luminescence unit can be determined according to specific usage scenario, for example, in the organic luminescent device
The light emission color temperature of first luminescence unit can have multiple gears, and each gear corresponds to different types of luminescence unit, Ke Yigen
According to current desired gear, the i-th kind of luminescence unit currently selected is determined.
Second of control mode, can be to j kind luminescence unit location in n in luminescent layer 02 the first luminescence units 020
Domain on-load voltage, so that the j kind luminescence unit, and the second luminescence unit 021 positioned at the j kind luminescence unit region
It is common to shine, 1≤j≤K.It should be noted that j kind luminescence unit can be determined according to specific usage scenario, for example, this has
The light emission color temperature of the first luminescence unit in machine luminescent device can have multiple gears, the corresponding different a variety of hairs of each gear
Light unit can determine the j kind luminescence unit currently selected according to current desired gear.
In above two control mode, by control n the first luminescence units 020, luminescence unit 020 not of the same race or
Different a variety of luminescence units 020 shine, and allow the organic luminescent device 0 to issue the light of more kinds of colour temperatures, further increase
Luminous flexibility.
Fig. 5 is the structural schematic diagram of another organic luminescent device provided in an embodiment of the present invention, and Fig. 6 is the middle section Fig. 5
The schematic diagram of C-C, Fig. 7 are the schematic diagram of the middle section Fig. 5 D-D.Incorporated by reference to Fig. 5 to Fig. 7, n in the organic luminescent device 0 the
One luminescence unit 020 may include: the first luminescence unit 020 of different lengths.
Then be directed to the organic luminescent device, the embodiment of the invention provides it is following it is several control its colour temperature control modes,
Include:
The first control mode, can be to the first hair of b kind length in n in luminescent layer 02 the first luminescence units 020
Light unit region on-load voltage, so that the first luminescence unit of the b kind length, and positioned at the b kind length
Second luminescence unit 021 of the first luminescence unit region shines jointly.1≤b≤B, B are in n the first luminescence units 020
The length species number of first luminescence unit 020 can be equal to n.
It should be noted that the first luminescence unit of b kind length can be determined according to specific usage scenario, for example,
The luminous intensity of the first luminescence unit in the organic luminescent device can have multiple gears, and each gear corresponds to different length
The first luminescence unit, the luminescence unit of b kind length currently selected can be determined according to current desired gear.
Second of control mode can shine to first of c kind length in n in luminescent layer 02 the first luminescence units 020
Unit region on-load voltage, so that the first luminous luminescence unit of the c kind length, and positioned at the of the c kind length
Second luminescence unit 021 of one luminescence unit region shines jointly, 1≤c≤B.
It should be noted that the first luminescence unit of c kind length can be determined according to specific usage scenario, for example, should
The luminous intensity of the first luminescence unit in organic luminescent device can have multiple gears, the corresponding different a variety of length of each gear
First luminescence unit of degree can determine the first luminescence unit of the c kind length currently selected according to current desired gear.
In above two control mode, by the way that in n the first luminescence units 020 of control, the first of length not of the same race shines
First luminescence unit 020 of unit 020 or different different lengths shines, which is issued more kinds of
The light of colour temperature further improves luminous flexibility.
It may include: the first electrode block 010 of different lengths and the second electrode block of different lengths in first electrode layer 01
011, and a first electrode block 010 can be identical as the length of corresponding first luminescence unit 020.
Optionally, for substrate 00 for that can be rectangular configuration, n the first luminescence units 020 can be along first direction P1 array
Arrangement, and the length of the n luminescence unit 020 is gradually reduced from the center of the rectangular configuration 00 to edge, first direction P1 and
There are inclination angle for the length direction (such as third direction P3) of substrate 00 (Fig. 5 is not marked into Fig. 7).So, it is located at
The length of the luminescence unit at 00 center of rectangular configuration is longer, when n the first luminescence units 020 shine, is located at rectangular configuration
The light emission luminance of the luminescence unit at 00 center is brighter, and the localization effects for the light which is issued are preferable.
Optionally, the inclination angle of the length direction of first direction P1 and substrate 00 can be 45 degree.
In first electrode layer 01, multiple first electrode blocks 010 and multiple second electrode blocks 011 are also along first direction P1 array
Arrangement, and the length of multiple first electrode blocks 010 and multiple second electrode blocks 011 is from the center of the rectangular configuration 00 to edge
Successively decrease.So, positioned at 00 center of rectangular configuration luminescence unit length longest, sent out in n the first luminescence units 020
Light time, the light emission luminance positioned at the luminescence unit at 00 center of rectangular configuration is most bright, further improves the organic luminescent device institute
The localization effects of the light of sending.
It should be noted that Fig. 5 only includes the first luminescence unit of four kinds of length with the organic luminescent device 0 into Fig. 7
020, the first electrode 010 of four kinds of length and the second electrode 011 of four kind of length, and the first luminescence unit of every kind of length
020 tool is there are two the first luminescence unit, and the electrode tool of every kind of length is there are two electrode, and the length of first direction P1 and substrate 00
For there are inclination angles for direction, and the inclination angle is 45 degree.
Optionally, which can also include other a variety of (such as five kinds) first luminescence units 020, other
A variety of (such as five kinds) first electrodes 010 and other a variety of (such as five kinds) second electrodes 011, the first luminescence unit of every kind of length
020 can also have other number (such as three) first luminescence units, and the electrode of every kind of length can also have other numbers
(such as three) electrode.First direction P1 and the length direction of substrate 00 can be with identical, and P1 and substrate in a first direction
For 00 length direction there are when inclination angle, which can also be other angles (such as 30 degree), the embodiment of the present invention to this not
It limits.
Optionally, organic luminescent device provided in an embodiment of the present invention can be for organic light emitting diode device (also known as
OLED device), illustratively, which can be OLED display panel, which can be in video camera
Display panel.Optionally, which can be passive matrix organic light emitting diode device (also known as PMOLED device
Part), illustratively, which can be PMOLED display panel.
Fig. 8 is the structural schematic diagram of another organic luminescent device provided in an embodiment of the present invention, as shown in figure 8, in Fig. 2
On the basis of, the organic luminescent device 0 can also include hole injection layer 04, hole transmission layer 05, electron transfer layer 06 and
Electron injecting layer 07.Wherein, first electrode layer 01, hole injection layer 04, hole transmission layer 05, luminescent layer 02, electron transfer layer
06, electron injecting layer 07 and the second electrode lay 03 are successively arranged in the side of substrate 00.First electrode layer 01 is located at the second electricity
Between pole layer 03 and substrate 00, the second luminescence unit 021 in luminescent layer 02 is located at n the first luminescence units 020 and substrate 00
Between.
Optionally, the second electrode lay 03 may be located between first electrode layer 01 and substrate 00, and the n in luminescent layer 02
First luminescence unit 020 may be located between the second luminescence unit 021 and substrate 00, and the embodiment of the present invention does not limit this
It is fixed.
In conclusion in organic luminescent device provided in an embodiment of the present invention, since second in luminescent layer is luminous single
First flood arrangement, therefore, during the second luminescence unit formed on substrate in the luminescent layer, it is only necessary to be formed on substrate
Second luminescence unit of flood.Namely second luminescence unit is prepared without mask process, reduce and prepares this and have
The number of used mask process during machine luminescent device, improves the preparation efficiency of organic luminescent device.
Fig. 9 is a kind of preparation method flow chart for organic luminescent device that the embodiment of the present invention also provides, the organic light emission
The preparation method of device can be used for preparing Fig. 1, Fig. 2, Fig. 5 and organic luminescent device shown in Fig. 8, as shown in figure 9, this has
The preparation method of machine luminescent device may include:
Step 901 provides a substrate.
Step 902 sequentially forms first electrode layer, luminescent layer and the second electrode lay on substrate.
Wherein, luminescent layer may include: second luminescence unit of n the first luminescence units and flood arrangement, n first hair
Light unit and the second luminescence unit are superposed, and the light emission color temperature of the first luminescence unit and the second luminescence unit is different, n >=1.The
Each electrode layer in one electrode layer and the second electrode lay includes: first electrode block corresponding with first area, and with the secondth area
The corresponding second electrode block in domain, first area are the first luminescence unit region, and second area is except the first luminescence unit institute
Region except region, each electrode block are configured as the corresponding region on-load voltage to luminescent layer.
In conclusion in the preparation method of organic luminescent device provided in an embodiment of the present invention, due in luminescent layer
Second luminescence unit flood arrangement, therefore, during the second luminescence unit formed on substrate in the luminescent layer, it is only necessary to
The second luminescence unit of flood is formed on substrate.Namely second luminescence unit is prepared without mask process, it reduces
The number for preparing used mask process during the organic luminescent device, improves the preparation effect of organic luminescent device
Rate.
Figure 10 is the preparation method flow chart of another organic luminescent device provided in an embodiment of the present invention, the preparation method
It is used to prepare organic luminescent device shown in Fig. 8, as shown in Figure 10, the preparation method of the organic luminescent device may include:
Step 1001 provides a substrate.
Substrate 00 as shown in figure 11 can be provided in step 1001.
Step 1002 forms first electrode layer on substrate.
In step 1002, the substrate formed in step 1001 can be put into evaporation coating device, and will be with multiple first electricity
The corresponding first mask plate face substrate of pole block, then control the evaporation coating device be deposited on the substrate be used to prepare first electricity
First evaporation material of pole, to form multiple first electrodes 010 as shown in figure 12 on substrate, can remove later this first
Mask plate.
Then can will the second mask plate face corresponding with multiple second electrodes substrate, then control the evaporation coating device
To on the substrate, vapor deposition is used to prepare the second evaporation material of second electrode, multiple as shown in fig. 13 that be formed on substrate
Second electrode 011 can remove second mask plate later.It should be noted that first evaporation material and the second vapor deposition material
Material can be evaporation material of the same race or not of the same race.
Then can will third mask plate face corresponding with the insulation system substrate, then control the evaporation coating device to this
On substrate, the third evaporation material for making the insulation system is deposited, to form insulation system as shown in figure 14 on substrate
012, to form first electrode layer 01, the third mask plate can be removed later.
Step 1003 sequentially forms hole injection layer and hole transmission layer in first electrode layer.
In step 1003, it can control in the first electrode layer that evaporation coating device is formed into step 1002, be successively deposited
It is used to prepare the 4th evaporation material of hole injection layer, and is used to prepare the 5th evaporation material of hole transmission layer, to be formed
Hole injection layer 04 and hole transmission layer 05 in Figure 15.
Step 1004 forms luminescent layer on the hole transport layer.
It in step 1004, can control on the hole transmission layer formed in evaporation coating device step 1003, be deposited for making
6th evaporation material of standby second luminescence unit, to form the second luminescence unit 021 shown in Figure 16.It then can will be with n
The corresponding 4th mask plate face substrate of first luminescence unit, and the evaporation coating device is controlled on second luminescence unit, it is deposited
It is used to prepare the 6th evaporation material of n the first luminescence units, to form n shown in Figure 17 the first luminescence units 020, with shape
At luminescent layer 02.
Step 1005 sequentially forms electron transfer layer, electron injecting layer and the second electrode lay on the light-emitting layer.
It in step 1005, can control on the luminescent layer that evaporation coating device is formed into step 1004, successively vapor deposition is used for
The 7th evaporation material for preparing electron transfer layer, is used to prepare the 8th evaporation material of electron injecting layer, and is used to prepare
9th evaporation material of two electrode layers, to form electron transfer layer 06, electron injecting layer 07 and the second electrode lay shown in Fig. 8
03.It should be noted that the 9th evaporation material can be of the same race or not of the same race with the first evaporation material and the second evaporation material
Evaporation material.
It should be noted that in the preparation method of above-mentioned organic luminescent device, only to use vapour deposition method to prepare organic light emission
For multiple film layers in device, and it is both needed to when the film layer of non-flood setting using mask process in preparing multiple film layer,
Namely it before vapor deposition is used to prepare the evaporation material of the film layer of non-flood setting on substrate, needs corresponding with the film layer will first cover
Template face substrate.
Optionally, during preparing the organic luminescent device, other preparation methods can also be used to prepare this organic
Film layer in luminescent device, for example, the sky in organic luminescent device can be prepared using the solution process such as ink-jet printing method
Cave transport layer, the embodiment of the present invention are not construed as limiting this.
In conclusion in the preparation method of organic luminescent device provided in an embodiment of the present invention, due in luminescent layer
Second luminescence unit flood arrangement, therefore, during the second luminescence unit formed on substrate in the luminescent layer, it is only necessary to
The second luminescence unit of flood is formed on substrate.Namely second luminescence unit is prepared without mask process, it reduces
The number for preparing used mask process during the organic luminescent device, improves the preparation effect of organic luminescent device
Rate.
The embodiment of the invention also provides a kind of lighting device, which may include Fig. 1, Fig. 2, Fig. 5 and Fig. 8
Shown in organic luminescent device.
Optionally, which can be OLED lighting device, further, the lighting device and can be PMOLED
Lighting device.Optionally, which can be white light illumination device, and illustratively, which can be desk lamp.
The embodiment of the invention also provides a kind of display device, which may include Fig. 1, Fig. 2, Fig. 5 and Fig. 8
Shown in organic luminescent device.
Illustratively, which can be with are as follows: Electronic Paper, mobile phone, tablet computer, television set, display, notebook electricity
Any products or components having a display function such as brain, Digital Frame, navigator, wearable display equipment.
Term "and/or" in the present invention, only a kind of incidence relation for describing affiliated partner, indicates may exist three kinds
Relationship, for example, A and/or B, can indicate: individualism A exists simultaneously A and B, these three situations of individualism B.In addition, this
Character "/" in text typicallys represent the relationship that forward-backward correlation object is a kind of "or".
It should be noted that organic luminescent device embodiment provided in an embodiment of the present invention, the preparation of organic luminescent device
Embodiment of the method, the embodiment of lighting device and the embodiment of display device can be referred to mutually, and the embodiment of the present invention is to this
Without limitation.The sequencing of embodiment of the method step provided in an embodiment of the present invention is able to carry out appropriate adjustment, and step also can
It is enough according to circumstances accordingly to be increased and decreased, anyone skilled in the art in the technical scope disclosed by the present invention,
The method that variation can be readily occurred in, should be covered by the protection scope of the present invention, therefore repeat no more.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to of the invention its
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the invention, these modifications, purposes or
The common knowledge in the art that person's adaptive change follows general principle of the invention and do not invent including the present invention
Or conventional techniques.The description and examples are only to be considered as illustrative, and true scope and spirit of the invention are wanted by right
It asks and points out.
It should be understood that the present invention is not limited to the precise structure already described above and shown in the accompanying drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present invention is limited only by the attached claims.
Claims (10)
1. a kind of organic luminescent device, which is characterized in that the organic luminescent device includes: substrate, and on the substrate
It is sequentially overlapped first electrode layer, luminescent layer and the second electrode lay of setting,
The luminescent layer includes: second luminescence unit of n the first luminescence units and flood arrangement, the n first list that shines
First and described second luminescence unit is superposed, and the light emission color temperature of first luminescence unit and second luminescence unit is not
Together, n >=1,
Each electrode layer in the first electrode layer and the second electrode lay includes: first electrode corresponding with first area
Block, and second electrode block corresponding with second area, the first area are first luminescence unit region, described the
Two regions are the region in addition to first luminescence unit region, and each electrode block is configured as to the luminescent layer
Corresponding region on-load voltage.
2. organic luminescent device according to claim 1, which is characterized in that the n the first luminescence units include a variety of
First luminescence unit of length.
3. organic luminescent device according to claim 2, which is characterized in that the substrate is rectangular configuration, the n the
One luminescence unit is along first direction array arrangement, and the length of the n luminescence unit is from the center of the rectangular configuration to side
Edge is gradually reduced, and there are inclination angles for the length direction of the first direction and the substrate.
4. organic luminescent device according to claim 1, which is characterized in that the substrate is rectangular configuration, the n the
One luminescence unit array arrangement, and the equal length of the n luminescence unit in a second direction, the second direction are the base
The length or width direction of plate.
5. organic luminescent device according to any one of claims 1 to 4, which is characterized in that the n the first luminescence unit packets
At least two luminescence units are included, the colour temperature that at least two luminescence unit issues light is different.
6. organic luminescent device according to any one of claims 1 to 4, which is characterized in that the first electrode layer includes: exhausted
Edge structure, multiple first electrode blocks and multiple second electrode blocks, the multiple first electrode block and the n a first
Luminescence unit corresponds.
7. organic luminescent device according to any one of claims 1 to 4, which is characterized in that
First luminescence unit is white-light emitting unit or Yellow light emitting unit, and the second luminescence unit is blue light emitting unit.
8. organic luminescent device according to claim 7, which is characterized in that
The material of first luminescence unit includes: two carbazole biphenyl bases, and the material of second luminescence unit includes: aromatic radical
Benzimidazole.
9. a kind of preparation method of organic luminescent device, which is characterized in that the described method includes:
One substrate is provided；
First electrode layer, luminescent layer and the second electrode lay are sequentially formed on the substrate；
The luminescent layer includes: second luminescence unit of n the first luminescence units and flood arrangement, the n first list that shines
First and described second luminescence unit is superposed, and the light emission color temperature of first luminescence unit and second luminescence unit is not
Together, n >=1,
Each electrode layer in the first electrode layer and the second electrode lay includes: first electrode corresponding with first area
Block, and second electrode block corresponding with second area, the first area are first luminescence unit region, described the
Two regions are the region in addition to first luminescence unit region, and each electrode block is configured as to the luminescent layer
Corresponding region on-load voltage.
10. a kind of lighting device, which is characterized in that the lighting device includes any organic light emission of claim 1 to 8
Device.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1400676A (en) * | 1998-12-16 | 2003-03-05 | 剑桥显示技术有限公司 | Organic light-emitting device |
| CN103262285A (en) * | 2010-12-13 | 2013-08-21 | 欧司朗光电半导体有限公司 | Organic light-emitting component, and use of a copper complex in a charge transport layer |
| CN104966787A (en) * | 2015-07-17 | 2015-10-07 | 京东方科技集团股份有限公司 | Light emitting diode, display substrate, manufacturing method thereof and display device |
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2018
- 2018-10-30 CN CN201811275406.5A patent/CN109411626B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1400676A (en) * | 1998-12-16 | 2003-03-05 | 剑桥显示技术有限公司 | Organic light-emitting device |
| CN103262285A (en) * | 2010-12-13 | 2013-08-21 | 欧司朗光电半导体有限公司 | Organic light-emitting component, and use of a copper complex in a charge transport layer |
| CN104966787A (en) * | 2015-07-17 | 2015-10-07 | 京东方科技集团股份有限公司 | Light emitting diode, display substrate, manufacturing method thereof and display device |
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