CN106920811A - A kind of organic electroluminescence display device and method of manufacturing same - Google Patents
A kind of organic electroluminescence display device and method of manufacturing same Download PDFInfo
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- CN106920811A CN106920811A CN201510991980.0A CN201510991980A CN106920811A CN 106920811 A CN106920811 A CN 106920811A CN 201510991980 A CN201510991980 A CN 201510991980A CN 106920811 A CN106920811 A CN 106920811A
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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
- 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
- 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 present invention relates to a kind of organic electroluminescence display device and method of manufacturing same, including top-illuminating OLED device and transparent OLED device that superposition is set, the transparent OLED device is arranged on the light direction of top-illuminating OLED device, one in the top-illuminating OLED device and the transparent OLED device is blue light emitting device, another is green luminescence device, feux rouges light conversion layer is provided between the top-illuminating OLED device and transparent OLED device, the light that part top-illuminating OLED device sends is converted to feux rouges by the feux rouges light conversion layer, so as to the RGB three coloured lights for realizing organic electroluminescence display device and method of manufacturing same show.The present invention is superimposed the RGB three coloured lights for constituting and shows by the emitting OLED-device using different colours, and the device with high-resolution pixel can be prepared without precision mask plate FMM in preparation process.
Description
Technical field
The present invention relates to organic electroluminescence display device and method of manufacturing same technical field, particularly a kind of different colours
The organic electroluminescence display device and method of manufacturing same that the RGB three coloured lights that emitting OLED-device superposition is constituted show.
Background technology
Organic electroluminescence display device and method of manufacturing same OLED generally includes multiple pixels, and each pixel is by some hairs
Light district's groups into.One of extensive use scheme is by three kinds of pixels of red, green, blue in small-medium size at present
One pixel of composition.To obtain pixel resolution higher, three kinds of luminous region layer of red, green, blue are in system
Need that high-accuracy mask evaporation is respectively adopted during standby, that is, need three groups of precision metallic mask.But essence
The full accuracy of close metal Mask is restricted due to technological level, causes ORGANIC ELECTROLUMINESCENCE DISPLAYS to fill
The resolution ratio put is difficult to improve；On the other hand, due to high-accuracy mask plate high precision, each luminous zone
Contraposition adjustment is required to, adjustment every time can all cause the decline of display device fabrication yield, therefore carry
Device cost high and limit the realization of higher resolution.
It is the access times for reducing accurate mask plate to put forward one of high-resolution means, shown in Fig. 1
OLED includes substrate 51, anode layer 52, hole injection layer 53, hole transmission layer 54, hair
Photosphere, electron transfer layer 55 and cathode layer 56, wherein luminescent layer include three kinds of luminous zones of red, green, blue,
Wherein red light-emitting area and green luminescence area is disposed side by side on hole transmission layer, and the one of blue light emitting area
Part is arranged on hole transmission layer, and another part covers the red light-emitting area and green luminescence area.
Red light-emitting area and green luminescence area are realized respectively with two groups of precision mask in the preparation, then using general
Logical mask plate open mask evaporation blue light emittings area.Although the program reduces one group of accurate mask plate,
But still need using two groups of accurate mask plates of single sub-pix, and need exactitude position, reduce
The resolution ratio of display device.
Another solution is, using white light emitting device and filter layer CF combinations, can to avoid
Using accurate mask, but power consumption is greatly increased.
The content of the invention
Therefore, being needed in the preparation process of the targeted luminescent layers of OLED in the prior art of the present invention multigroup
High accuracy mask plate, and the complicated problem of process route, and then a kind of ORGANIC ELECTROLUMINESCENCE DISPLAYS is provided
Device, it passes through to be shown using RGB three coloured lights of the emitting OLED-device superposition composition of different colours,
In preparation process the device with high-resolution pixel can be prepared without precision mask plate FMM.
The present invention also provides a kind of preparation method of above-mentioned organic electroluminescence display device and method of manufacturing same.
In order to solve the above technical problems, the present invention is adopted the following technical scheme that：
A kind of organic electroluminescence display device and method of manufacturing same, including superposition set top-illuminating OLED device and thoroughly
Bright OLED, the transparent OLED device is arranged on the light extraction of the top-illuminating OLED device
Direction, one in the top-illuminating OLED device and the transparent OLED device is blue light emitting
Device, another is green luminescence device, the top-illuminating OLED device and transparent OLED device
Between be provided with feux rouges light conversion layer, the feux rouges light conversion layer sends part top-illuminating OLED device
Light be converted to feux rouges, so as to the RGB three coloured lights for realizing organic electroluminescence display device and method of manufacturing same show.
The feux rouges light conversion layer includes quantum dot film layer and feux rouges filter layer, the quantum dot film
Layer is fitted setting with top-illuminating OLED device, and the feux rouges filter layer is arranged on the quantum dot film
Between layer and transparent OLED device.
Quantum dot film layer is CdTe quantum film layer or CdSe quantum dot film layer.
The light-emitting area of the feux rouges light conversion layer is the 1/4~3/4 of top-illuminating OLED device light-emitting area.
The thickness of the quantum dot film layer is 5nm-500nm, and the thickness of feux rouges filter layer is 0.1 μ
m-10μm。
The top-illuminating OLED device is green glow OLED, and the transparent OLED device is indigo plant
Light OLED.
Organic electroluminescence display device and method of manufacturing same includes red light-emitting region, green luminescence region and blue light emitting
Region, the region of the Nan dian Yao device, green glow OLED and feux rouges light conversion layer superposition
Constitute red light-emitting area, the green glow OLED and the superposition of Nan dian Yao device and without feux rouges light
The region of conversion layer constitutes green luminescence region, blue light emitting area at least partly cover red light-emitting area and/
Or green luminescence area.
The top-illuminating OLED device is Nan dian Yao device, and the transparent OLED device is green
Light OLED.
Organic electroluminescence display device and method of manufacturing same includes red light-emitting region, green luminescence region and blue light emitting
Region, the region of the Nan dian Yao device, green glow OLED and feux rouges light conversion layer superposition
Constitute red light-emitting area, the Nan dian Yao device and the superposition of green glow OLED and without feux rouges light
The region of conversion layer constitutes blue light emitting region, green luminescence area at least partly cover red light-emitting area and/
Or blue light emitting area.
The top-illuminating OLED device include first substrate and the first encapsulated layer, the first substrate and
First encapsulated layer is formed in confined space and is provided with the first luminescence unit；Transparent OLED device includes the
Two substrates and the second encapsulated layer, the second substrate and the second encapsulated layer are formed and are provided with confined space
Second luminescence unit；First encapsulated layer and the laminating of the second encapsulated layer are set.
Above-mentioned technical proposal of the invention has advantages below compared to existing technology：
Because the organic electroluminescence display device and method of manufacturing same that the present invention is provided, including the top that superposition is set light
OLED and transparent OLED device, the top-illuminating OLED device and transparent OLED device
Between be provided with feux rouges light conversion layer, the feux rouges light conversion layer sends part top-illuminating OLED device
Light be converted to feux rouges, so as to the RGB three coloured lights for realizing organic electroluminescence display device and method of manufacturing same show,
Without accurate mask plate FMM in preparation process, it is only necessary to which aperture mask plate can be prepared with height
The device of definition pixel.
And the organic electroluminescence display device and method of manufacturing same shown in Fig. 1, three tools on substrate of luminous material layer
There is identical cross-sectional area, it is necessary to be deposited with using two groups of mask plates, to align just complete twice and be deposited with
Journey.Accurate mask plate cost and its costliness, often reduce by one group of accurate mask plate, you can be greatly lowered
Preparation cost.Additionally, using secondary contraposition, contraposition every time can all have certain error.And the application
Technical scheme without the contraposition of accurate mask plate, therefore drops to greatest extent without accurate mask plate
The low generation of error, effectively increases product yield.
Brief description of the drawings
In order that present disclosure is easier to be clearly understood, below according to specific reality of the invention
Apply example and with reference to accompanying drawing, the present invention is further detailed explanation, wherein
Fig. 1 is the display device structure schematic diagram of prior art；
Fig. 2 is the structural representation of display device of the present invention；
Fig. 3 is the structural representation of the first embodiment of display device of the present invention；
Fig. 4 is the structural representation of the second embodiment of display device of the present invention；
Wherein 11- first substrates, the 12- first anode, the organic function layers of 13- first, the negative electrodes of 14- first,
The encapsulated layers of 15- first, 16- pixel confining layers, the encapsulated layers of 21- second, the negative electrodes of 22- second, 23- second has
Machine functional layer, 24- second plates, 25- second substrates, 3- feux rouges light conversion layers, 31- quantum dot films layer,
32- feux rouges filter layers.
Specific embodiment
Below will the invention will be further described by specific embodiment.
The present invention can be embodied in many different forms, and should not be construed as limited to illustrate herein
Embodiment.Conversely, there is provided these embodiments so that the disclosure will be thorough and complete, and
Design of the invention will be fully conveyed to those skilled in the art, the present invention only will be come by claim
Limit.In the accompanying drawings, for clarity, the size and relative size in layer and region can be exaggerated.Should
When understanding, when element such as layer, region or substrate are referred to as " being formed in " or " being arranged on "
Another element " on " when, the element can be arranged directly on another element, or can also
There is intermediary element.Conversely, when element is referred to as " being formed directly into " or " being set directly at " separately
When on one element, in the absence of intermediary element.
As shown in Fig. 2 being set the invention provides a kind of organic electroluminescence display device and method of manufacturing same, including superposition
The top-illuminating OLED device and transparent OLED device put, the transparent OLED device are arranged on institute
State the light direction of top-illuminating OLED device, the top-illuminating OLED device and the transparent OLED
One in device is blue light emitting device, and another is green luminescence device, the top-illuminating OLED
Feux rouges light conversion layer 3 is provided between device and transparent OLED device, the feux rouges light conversion layer 3 will
The light that part top-illuminating OLED device sends is converted to feux rouges, so as to realize that organic electroluminescent shows
The RGB three coloured lights of showing device show.Preferably, shown top-illuminating OLED device and transparent OLED
The light direction of device is consistent.Specifically, according to the top-illuminating OLED device and transparent OLED
The difference of device color, with following embodiments：
Embodiment 1
The organic electroluminescence display device and method of manufacturing same of the present embodiment is as shown in figure 3, the top hair set including superposition
Light OLED (green glow OLED) and transparent OLED device (Nan dian Yao device),
The transparent OLED device is arranged on the light direction of the top-illuminating OLED device, the top hair
Feux rouges light conversion layer, the feux rouges light conversion are provided between light OLED and transparent OLED device
The light that part top-illuminating OLED device sends is converted to feux rouges by layer, so as to realize that organic electroluminescence is sent out
The RGB three coloured lights of electro-optical display device show.
The feux rouges light conversion layer includes the quantum dot film layer 31 of absorbable green glow and feux rouges filter layer 32,
Quantum dot film layer 31 is fitted setting, the feux rouges filter layer 32 with top-illuminating OLED device
It is arranged between the quantum dot film layer 31 and transparent OLED device.
Quantum dot film layer 31 is CdTe quantum film layer or CdSe quantum dot film layer.
The light-emitting area of the feux rouges light conversion layer is the 1/4~3/4 of top-illuminating OLED device light-emitting area.
The thickness of the quantum dot film layer 31 is 5nm-500nm, and the thickness of feux rouges filter layer 32 is
0.1μm-10μm。
The top-illuminating OLED device includes the encapsulated layer 15 of first substrate 11 and first, first base
11 and first encapsulated layer of plate 15 is formed in confined space and is provided with some pixel confining layers 16, the picture
First luminescence unit is set between plain confining layers 16；Transparent OLED device includes the He of second substrate 25
Second encapsulated layer 21,25 and second encapsulated layer of the second substrate 21 is formed and is provided with confined space
Second luminescence unit；The laminating of first encapsulated layer, 15 and second encapsulated layer 21 is set.
First luminescence unit includes the first anode 12, the first organic function layer 13 and the first negative electrode
14, first organic function layer 13 includes the first hole injection layer and/or the first hole transmission layer, the
One luminescent layer, the first electron transfer layer and/or the first electron injecting layer；Second luminescence unit includes
Second plate 24, the second organic function layer 23 and the second negative electrode 22, second organic function layer 23
Including the second hole injection layer and/or the second hole transmission layer, the second luminescent layer, the second electron transfer layer
And/or second electron injecting layer.
Organic electroluminescence display device and method of manufacturing same includes that (R represents red light-emitting area in Fig. 3 in red light-emitting region
Domain), green luminescence region (G represents red light-emitting region in Fig. 3) and blue light emitting region (Fig. 3
Middle B represents red light-emitting region), the Nan dian Yao device, green glow OLED and feux rouges
The region of light conversion layer superposition constitutes red light-emitting area, the green glow OLED and Nan dian Yao
Device is superimposed and the region without feux rouges light conversion layer constitutes green luminescence region, at least portion of blue light emitting area
Divide covering red light-emitting area and/or green luminescence area.
Embodiment 2
The organic electroluminescence display device and method of manufacturing same of the present embodiment is as shown in figure 4, the top hair set including superposition
Light OLED (Nan dian Yao device) and transparent OLED device (green glow OLED),
The transparent OLED device is arranged on the light direction of the top-illuminating OLED device, the top hair
Feux rouges light conversion layer, the feux rouges light conversion are provided between light OLED and transparent OLED device
The light that part top-illuminating OLED device sends is converted to feux rouges by layer, so as to realize that organic electroluminescence is sent out
The RGB three coloured lights of electro-optical display device show.
The feux rouges light conversion layer is with embodiment 1.
The top-illuminating OLED device includes the encapsulated layer 15 of first substrate 11 and first, first base
11 and first encapsulated layer of plate 5 is formed in confined space and is provided with some pixel confining layers 16, the picture
First luminescence unit is set between plain confining layers 16；Transparent OLED device includes the He of second substrate 25
Second encapsulated layer 21,25 and second encapsulated layer of the second substrate 21 is formed and is provided with confined space
Second luminescence unit；The laminating of first encapsulated layer, 15 and second encapsulated layer 21 is set.
First luminescence unit includes the first anode 12, the first organic function layer 13 and the first negative electrode
14, first organic function layer 13 includes the first hole injection layer and/or the first hole transmission layer, the
One luminescent layer, the first electron transfer layer and/or the first electron injecting layer；Second luminescence unit includes
Second plate 24, the second organic function layer 23 and the second negative electrode 22, second organic function layer 23
Including the second hole injection layer and/or the second hole transmission layer, the second luminescent layer, the second electron transfer layer
And/or second electron injecting layer.
Organic electroluminescence display device and method of manufacturing same includes that (R represents red light-emitting area in Fig. 4 in red light-emitting region
Domain), green luminescence area (G represents red light-emitting region in Fig. 4) domain and blue light emitting region (Fig. 4
Middle B represents red light-emitting region), the Nan dian Yao device, green glow OLED and feux rouges
The region of light conversion layer superposition constitutes red light-emitting area, the Nan dian Yao device and green glow OLED
Device is superimposed and the region without feux rouges light conversion layer constitutes blue light emitting region, at least portion of green luminescence area
Divide covering red light-emitting area and/or blue light emitting area.
Obviously, above-described embodiment is only intended to clearly illustrate example, and not to embodiment party
The restriction of formula.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms.There is no need and unable to give all of implementation method
With exhaustion.And the obvious change thus extended out or change guarantor still in the invention
Among shield scope.
Claims (10)
1. a kind of organic electroluminescence display device and method of manufacturing same, including the top-illuminating OLED device that sets of superposition and
Transparent OLED device, the transparent OLED device is arranged on going out for the top-illuminating OLED device
Light direction, one in the top-illuminating OLED device and the transparent OLED device is blue light hair
Optical device, another is green luminescence device, it is characterised in that
Feux rouges light conversion layer, institute are provided between the top-illuminating OLED device and transparent OLED device
State feux rouges light conversion layer and the light that part top-illuminating OLED device sends is converted into feux rouges, so that real
The RGB three coloured lights of existing organic electroluminescence display device and method of manufacturing same show.
2. organic electroluminescence display device and method of manufacturing same according to claim 1, it is characterised in that described red
Light light conversion layer includes quantum dot film layer and feux rouges filter layer, and the quantum dot film layer is luminous with top
OLED laminating is set, and the feux rouges filter layer is arranged on quantum dot film layer and transparent
Between OLED.
3. organic electroluminescence display device and method of manufacturing same according to claim 2, it is characterised in that quantum dot
Film layer is CdTe quantum film layer or CdSe quantum dot film layer.
4. organic electroluminescence display device and method of manufacturing same according to claim 3, it is characterised in that described red
The light-emitting area of light light conversion layer is the 1/4~3/4 of top-illuminating OLED device light-emitting area.
5. organic electroluminescence display device and method of manufacturing same according to claim 4, it is characterised in that the amount
The thickness of son point film layer is 5nm-500nm, and the thickness of feux rouges filter layer is 0.1 μm -10 μm.
6. organic electroluminescence display device and method of manufacturing same according to claim 5, it is characterised in that the top
Emitting OLED-device is green glow OLED, and the transparent OLED device is Nan dian Yao device
Part.
7. organic electroluminescence display device and method of manufacturing same according to claim 6, it is characterised in that Organic Electricity
Photoluminescence display device includes red light-emitting region, green luminescence region and blue light emitting region, described
The region of Nan dian Yao device, green glow OLED and feux rouges light conversion layer superposition constitutes feux rouges hair
Light area, the green glow OLED and Nan dian Yao device are superimposed and without the area of feux rouges light conversion layer
Domain constitutes green luminescence region, and blue light emitting area at least partly covers red light-emitting area and/or green luminescence
Area.
8. organic electroluminescence display device and method of manufacturing same according to claim 5, it is characterised in that the top
Emitting OLED-device is Nan dian Yao device, and the transparent OLED device is green glow OLED devices
Part.
9. organic electroluminescence display device and method of manufacturing same according to claim 8, it is characterised in that Organic Electricity
Photoluminescence display device includes red light-emitting region, green luminescence region and blue light emitting region, described
The region of Nan dian Yao device, green glow OLED and feux rouges light conversion layer superposition constitutes feux rouges hair
Light area, the Nan dian Yao device and green glow OLED are superimposed and without the area of feux rouges light conversion layer
Domain constitutes blue light emitting region, and green luminescence area at least partly covers red light-emitting area and/or blue light emitting
Area.
10. the organic electroluminescence display device and method of manufacturing same according to claim any one of 1-9, its feature exists
Include first substrate and the first encapsulated layer in, the top-illuminating OLED device, the first substrate and
First encapsulated layer is formed in confined space and is provided with the first luminescence unit；Transparent OLED device includes the
Two substrates and the second encapsulated layer, the second substrate and the second encapsulated layer are formed and are provided with confined space
Second luminescence unit；First encapsulated layer and the laminating of the second encapsulated layer are set.
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| CN201510991980.0A CN106920811B (en) | 2015-12-25 | 2015-12-25 | A kind of organic electroluminescence display device and method of manufacturing same |
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Cited By (1)
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| CN113053963A (en) * | 2021-02-24 | 2021-06-29 | 合肥维信诺科技有限公司 | Display panel and display device |
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