CN105957871A - Flexible substrate, flexible display panel and preparation method of flexible display panel - Google Patents
Flexible substrate, flexible display panel and preparation method of flexible display panel Download PDFInfo
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- CN105957871A CN105957871A CN201610532363.9A CN201610532363A CN105957871A CN 105957871 A CN105957871 A CN 105957871A CN 201610532363 A CN201610532363 A CN 201610532363A CN 105957871 A CN105957871 A CN 105957871A
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- flexible substrate
- substrate
- optical scatter
- oxide
- precursor solution
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/1218—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition or structure of the substrate
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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
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K77/00—Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80
- H10K77/10—Substrates, e.g. flexible substrates
- H10K77/111—Flexible substrates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/549—Organic PV cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention provides a flexible substrate, a flexible display panel and a preparation method of the flexible display panel. The flexible substrate is prepared by doping light scattering particles into a flexible substrate precursor solution; on the basis of 100% of total weight of the flexible substrate, the weight percentage of the light scattering particles is 0.5%-10%; the flexible display panel comprises the flexible substrate, a light-emitting deice and an encapsulation layer, wherein the light-emitting deice is arranged on the flexible substrate; the encapsulation layer is used for encapsulating the light-emitting deice; and the flexible substrate is the flexible substrate mentioned above.
Description
Technical field
The invention belongs to technical field of flat panel display, particularly relate to a kind of flexible substrate, flexible display panels and
Its preparation method.
Background technology
Flexible display panels be use flexible material make, can any diastrophic display floater.Soft
Display floater is lightweight, volume is little, slimming for property, easy to carry；And its can high-low temperature resistant, impact resistance,
Shock resistance is higher, and adaptable working environment is wider；Additionally, flexible display panels is rollable, profile is more
There is the aesthetic feeling of Art Design, etc..Above-mentioned series of advantages so that flexible display panels becomes in recent years
Colleges and universities and the focus of research institution's research both at home and abroad.
At present, luminescent device based on flexible display panels is mainly OLED, and OLED is a kind of area source,
Due to refractive index and the difference of air refraction of layer each in device, when not having special light to take out structure, its
Light extraction efficiency is typically only about 20%-25%, and this significantly limit the performance of display floater.Spy is set
After different light takes out structure, the light extraction efficiency of flexible display panels can be improved.At present, common light takes out
Structure is totally divided into two kinds: one is that interior light takes out structure, i.e. introduces light between substrate and luminescent device and takes
Go out layer, such as scattering layer, refractive index alternation lamination；Another kind is outer smooth removing layer, i.e. at the exiting surface of device
Outside introduces light removing layer, such as scattering layer or surface micro-structure etc..Both light takes out the introducing of structure, energy
Improve light extraction efficiency to a certain extent, but, its preparation technology is relative complex, relatively costly.Additionally,
Also there is people by changing the structure of flexible substrate, dispersing and elevation height light extraction efficiency.Concrete, by soft in making
Property substrate time, use the mother matrix of surface irregularity thus form the flexible substrate surface of surface irregularity and carry
High light takes out, but during the mastering flexible substrate of surface irregularity, owing to out-of-flatness surface can significantly increase
Add the contact area of mother matrix and flexible substrate, increase flexible substrate adhesion on mother matrix, thus can increase
The difficulty that flexible substrate is peeled off from mother matrix, the yield of device after the final stripping of impact.Therefore, prior art
Have much room for improvement and develop.
Summary of the invention
It is an object of the invention to provide a kind of flexible substrate, flexible display panels, it is intended to solve existing flexibility
Display floater light extraction efficiency is low and introduces complex process, problem that cost is high when light takes out structure, and
By the mother matrix of surface irregularity change flexible substrate surface texture improve light extraction efficiency time, the device that obtains
The problem that yield is low.
Another object of the present invention is to provide one and preparation method thereof.
The present invention is achieved in that a kind of flexible substrate, and described flexible substrate is by mixing optical scatter
Enter in flexible substrate precursor solution and make, and be in terms of 100% by the gross weight of described flexible substrate, described light
The weight percentage of scattering particles is 0.5-10%.
And, a kind of flexible display panels, including flexible substrate, the luminescence arranged in described flexible substrate
Device, and for encapsulating the encapsulated layer of described luminescent device, and described flexible substrate is above-mentioned flexible substrate.
Accordingly, the preparation method of a kind of flexible display panels, comprise the following steps:
Optical scatter and flexible substrate precursor solution are provided, described optical scatter is mixed described flexibility
Substrate precursor solution is formed the precursor solution containing optical scatter；
One rigid substrate is provided, the described precursor solution containing optical scatter is deposited on described rigid substrate
Upper film forming, makes the flexible substrate containing optical scatter；
Described flexible substrate makes luminescent device, is packaged described luminescent device processing, is formed soft
Property display floater；
Described flexible display panels is peeled off from described rigid substrate.
The flexible substrate that the present invention provides, by mixing light in the precursor solution for making flexible substrate
Scattering particles, thus prepare the flexible substrate containing optical scatter.It is soft that described flexible substrate is used as bottom emitting type
During the substrate of property display floater, the light extraction efficiency of flexible display panels can be effectively improved.
The flexible display panels that the present invention provides, using the above-mentioned flexible substrate containing optical scatter as substrate,
Owing to described flexible substrate self contains optical scatter, the substrate total reflection to Air Interface can be reduced,
Thus it is effectively improved the light extraction efficiency of flexible display panels, obtain the flexible display panels of high light extraction efficiency.
Compare the existing light that additionally introduces and take out the display floater of structure, the preparation of flexible display panels of the present invention
Method is the simplest, is effectively saved cost of manufacture.
Accompanying drawing explanation
Fig. 1 is the structural representation of the flexible display panels that the embodiment of the present invention provides；
Fig. 2 is the preparation technology flow chart of the flexible display panels that the embodiment of the present invention provides；
Fig. 3 be the embodiment of the present invention provide in rigid substrate preparation containing optical scatter flexible substrate after
Structural representation；
Fig. 4 is the structural representation prepared on flexible substrates after luminescent device that the embodiment of the present invention provides；
Fig. 5 be the embodiment of the present invention provide luminescent device is packaged after structural representation；
Fig. 6 be the embodiment of the present invention provide by rigid substrate peel off after schematic diagram.
Detailed description of the invention
In order to make the technical problem to be solved in the present invention, technical scheme and beneficial effect clearer, with
Under in conjunction with the embodiments, the present invention is further elaborated.Should be appreciated that described herein specifically
Embodiment only in order to explain the present invention, is not intended to limit the present invention.
Embodiments providing a kind of flexible substrate, described flexible substrate is by mixing optical scatter
Making in flexible substrate precursor solution, and be in terms of 100% by the gross weight of described flexible substrate, described light dissipates
The weight percentage of radion is 0.5-10%.
Concrete, in the embodiment of the present invention, described flexible substrate precursor solution is that this area is soft for preparing
The conventional precursor solution of property substrate, described optical scatter is the material with light scattering function.The present invention
The content of optical scatter described in embodiment is relatively big to the performance impact of described flexible substrate, concrete, if institute
The weight percentage stating light diffusing particles is too small, then cannot realize light scattering function；If described light scattering
The weight percentage of grain is excessive, then may affect light transmission, even have influence on described flexible substrate self
Flexibility.In view of this, it is in terms of 100% by the gross weight of described flexible substrate, the weight of described light diffusing particles
Amount percentage composition is 0.5-10%.
In the embodiment of the present invention, owing to flexible substrate described in the embodiment of the present invention is used as preparation flexible display panels
Time, follow-up need through the high temperature anneal, therefore, the embodiment of the present invention preferably employs has heat-resisting quantity
The optical scatter of energy.Preferably, described optical scatter is titanium oxide, titanium dioxide, magnesium oxide, oxygen
Change zinc, silicon oxide, silicon dioxide, zirconium dioxide, ferrum oxide, copper oxide, lead oxide, manganese oxide, oxygen
Change at least one in stannum, tungsten oxide.Certainly, it is not limited to this.Above-mentioned preferred described optical scatter,
Not only there is preferable light scattering property, and there is preferable resistance to elevated temperatures, be amenable to 350 DEG C even
Above high-temperature process still keeps good light scattering property.
Further, so that described flexible substrate possesses more preferable light emission when flexible display panels
Performance, the diameter of described optical scatter is preferably 20-200nm.Owing to described flexible substrate is generally tens
The thickness of micron, therefore, if the diameter of described optical scatter is excessive, may affect described flexible substrate
Pattern；If optical scatter is undersized, light may be produced effectively scattering, thus cannot be real
Now improve the purpose that light takes out.
The flexible substrate that the embodiment of the present invention provides, by the precursor solution for making flexible substrate
Mix optical scatter, thus prepare the flexible substrate containing optical scatter.Described flexible substrate was sent out the end of as
During the substrate of emitting flexible display panels, owing to described flexible substrate self contains optical scatter, therefore may be used
To reduce the substrate total reflection to Air Interface, and then it is effectively improved the light extraction efficiency of flexible display panels.
And, in conjunction with Fig. 1, embodiments provide a kind of flexible display panels, including flexible substrate 1,
The luminescent device 2 arranged in described flexible substrate 1, and for encapsulating the encapsulated layer 3 of described luminescent device 2,
And described flexible substrate 1 is above-mentioned flexible substrate.
Concrete, described flexible substrate 1 is the above-mentioned flexible substrate containing optical scatter.That is, described light
Scattering particles are the material with light scattering function, and its weight percentage accounts for the gross weight of described flexible substrate
0.5-10%.Preferably, described optical scatter be titanium oxide, titanium dioxide, magnesium oxide, zinc oxide,
Silicon oxide, silicon dioxide, zirconium dioxide, ferrum oxide, copper oxide, lead oxide, manganese oxide, stannum oxide,
At least one in tungsten oxide.Further, a diameter of 20-200nm of described optical scatter.
Described luminescent device 2 is OLED, QLED or OLED/QLED hybrid device.Wherein, described OLED,
QLED or OLED/QLED hybrid device at least includes negative electrode, luminescent layer and anode, it is further preferred that
Can also according to the performance need of luminescent device, arrange electron injecting layer, electron transfer layer, hole blocking layer,
At least one of which in electronic barrier layer, hole transmission layer, hole injection layer.Wherein, described luminescent layer according to
The type of luminescent device selects, and when described luminescent device 2 is OLED, described luminescent layer is organic
Photosphere；When described luminescent device 2 is QLED, described luminescent layer is quantum dot light emitting layer；When described luminescence
Device 2 is OLED/QLED hybrid device, and described luminescent layer had not only contained organic luminous layer, but also containing quantum dot
Luminescent layer, time noticeable, described organic luminous layer and quantum dot light emitting layer should be with its luminescent device types
It is correspondingly arranged.
Described encapsulated layer 3 is used for encapsulating described luminescent device 2 so that described luminescent device 2 is from water, oxygen
Infiltration and its performance is impacted.Concrete, the selection of described encapsulated layer 3 the most strictly limits, can
Use the fexible film encapsulated layer that this area is conventional.
The embodiment of the present invention provide flexible display panels, using the above-mentioned flexible substrate containing optical scatter as
Substrate, owing to described flexible substrate self contains optical scatter, can reduce complete to Air Interface of substrate
Reflection, thus it is effectively improved the light extraction efficiency of flexible display panels, obtain the Flexible Displays of high light extraction efficiency
Panel.
Flexible display panels described in the embodiment of the present invention can be prepared by following method.
Accordingly, in conjunction with Fig. 2-6, the embodiment of the present invention additionally provides the preparation side of a kind of flexible display panels
Method, comprises the following steps, its process chart as shown in Figure 2:
S01., optical scatter and flexible substrate precursor solution are provided, described optical scatter are mixed described
Flexible substrate precursor solution is formed the precursor solution containing optical scatter；
S02., one rigid substrate 0 is provided, the described precursor solution containing optical scatter is deposited on described just
Property substrate 0 on film forming, make containing the flexible substrate 1 of optical scatter；
S03. in described flexible substrate 1, make luminescent device 2, described luminescent device 2 is packaged place
Reason, forms flexible display panels；
S04. described flexible display panels is peeled off from described rigid substrate 0.
Concrete, in above-mentioned steps S01, described optical scatter is optical scatter mentioned above, its
Performance and preferred type thereof are stated the most, and in order to save length, here is omitted.Described soft
Property substrate precursor solution be the conventional solution for making flexible substrate in this area.
In the embodiment of the present invention, described optical scatter can be mixed in described flexible substrate precursor solution
Form dispersion；Described optical scatter can also be prepared as optical scatter precursor solution, then
It is blended with described flexible substrate precursor solution, obtains mixed solution.As the described forerunner containing optical scatter
When liquid solution is dispersion, in order to obtain finely dispersed system, the embodiment of the present invention preferably will contain
The precursor solution stating optical scatter carries out supersound process.When the described precursor solution containing optical scatter
During for mixed solution, in later stage flexible substrate high annealing solidification process, optical scatter presoma decomposes
Assemble formation optical scatter to play a role.The embodiment of the present invention is the most described containing before optical scatter
Driving liquid solution is that described optical scatter is dispersed in described flexible substrate precursor solution the dispersion formed
System.Thus can get performance be more uniformly distributed, stable flexible substrate 1.
In above-mentioned steps S02, described rigid substrate 0 can use the rigid substrate that this area is conventional, including but
It is not limited to glass substrate.The described precursor solution containing optical scatter is deposited in described rigid substrate 0
The mode of film forming, can use the solution processing mode of routine to realize, such as spin coating, blade coating etc..Described just
Property substrate 0 on preparation containing optical scatter flexible substrate 1 after structure as shown in Figure 3.
In above-mentioned steps S03, the embodiment of the present invention makes luminescent device 2, right in described flexible substrate 1
The mode that described luminescent device 2 is packaged processing is unrestricted, and this area conventional method all can be used to realize,
Encapsulated layer 3 is formed after encapsulated process.Flexible substrate 1 is prepared the such as Fig. 4 of the structure after luminescent device 2
Shown in, the structure after being packaged luminescent device is as shown in Figure 5.
In above-mentioned steps S04, described flexible display panels is peeled off from described rigid substrate 0, can borrow
Mechanical force is helped to realize.Structure such as Fig. 6 after described flexible display panels is peeled off from described rigid substrate 0
Shown in.
Comparing the existing light that additionally introduces and take out the display floater of structure, the flexibility that the embodiment of the present invention provides shows
Show that the preparation method of panel is the simplest, be effectively saved cost of manufacture.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this
Any amendment, equivalent and the improvement etc. made within bright spirit and principle, should be included in the present invention
Protection domain within.
Claims (7)
1. a flexible substrate, it is characterised in that described flexible substrate is by mixing flexibility by optical scatter
Substrate precursor solution is made, and is in terms of 100% by the gross weight of described flexible substrate, described light scattering grain
The weight percentage of son is 0.5-10%.
2. flexible substrate as claimed in claim 1, it is characterised in that described optical scatter be titanium oxide,
Titanium dioxide, magnesium oxide, zinc oxide, silicon oxide, silicon dioxide, zirconium dioxide, ferrum oxide, copper oxide,
At least one in lead oxide, manganese oxide, stannum oxide, tungsten oxide.
3. flexible substrate as claimed in claim 1, it is characterised in that described optical scatter a diameter of
20-200nm。
4. a flexible display panels, it is characterised in that include flexible substrate, sets in described flexible substrate
The luminescent device put, and for encapsulating the encapsulated layer of described luminescent device, and described flexible substrate is that right is wanted
Seek the arbitrary described flexible substrate of 1-3.
5. display floater as claimed in claim 4, it is characterised in that described luminescent device be OLED,
QLED or OLED/QLED hybrid device.
6. a preparation method for flexible display panels, comprises the following steps:
Optical scatter and flexible substrate precursor solution are provided, described optical scatter is mixed described flexibility
Substrate precursor solution is formed the precursor solution containing optical scatter；
One rigid substrate is provided, the described precursor solution containing optical scatter is deposited on described rigid substrate
Upper film forming, makes the flexible substrate containing optical scatter；
Described flexible substrate makes luminescent device, is packaged described luminescent device processing, is formed soft
Property display floater；
Described flexible display panels is peeled off from described rigid substrate.
7. the preparation method of display floater as claimed in claim 6, it is characterised in that described containing light scattering
The precursor solution of granule for being dispersed in described flexible substrate precursor solution formation by described optical scatter
Dispersion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610532363.9A CN105957871A (en) | 2016-07-07 | 2016-07-07 | Flexible substrate, flexible display panel and preparation method of flexible display panel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610532363.9A CN105957871A (en) | 2016-07-07 | 2016-07-07 | Flexible substrate, flexible display panel and preparation method of flexible display panel |
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| CN105957871A true CN105957871A (en) | 2016-09-21 |
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| CN201610532363.9A Pending CN105957871A (en) | 2016-07-07 | 2016-07-07 | Flexible substrate, flexible display panel and preparation method of flexible display panel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111755632A (en) * | 2020-07-30 | 2020-10-09 | 河南工程学院 | Flexible organic electroluminescent device and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102104114A (en) * | 2010-12-09 | 2011-06-22 | 深圳丹邦投资集团有限公司 | Flexible substrate and preparation method thereof |
| CN102386339A (en) * | 2011-09-28 | 2012-03-21 | 友达光电股份有限公司 | Organic electroluminescent element |
| US9278855B2 (en) * | 2011-05-27 | 2016-03-08 | Drexel University | Flexible SERS substrates with filtering capabilities |
-
2016
- 2016-07-07 CN CN201610532363.9A patent/CN105957871A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102104114A (en) * | 2010-12-09 | 2011-06-22 | 深圳丹邦投资集团有限公司 | Flexible substrate and preparation method thereof |
| US9278855B2 (en) * | 2011-05-27 | 2016-03-08 | Drexel University | Flexible SERS substrates with filtering capabilities |
| CN102386339A (en) * | 2011-09-28 | 2012-03-21 | 友达光电股份有限公司 | Organic electroluminescent element |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111755632A (en) * | 2020-07-30 | 2020-10-09 | 河南工程学院 | Flexible organic electroluminescent device and preparation method thereof |
| CN111755632B (en) * | 2020-07-30 | 2022-07-19 | 河南工程学院 | Flexible organic electroluminescent device and preparation method thereof |
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Application publication date: 20160921 |