CN108373847A - A kind of flexible touch screen base material and preparation method thereof - Google Patents
A kind of flexible touch screen base material and preparation method thereof Download PDFInfo
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- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D179/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen, or carbon only, not provided for in groups C09D161/00 - C09D177/00
- C09D179/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C09D179/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
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- C08K7/14—Glass
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- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D123/00—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
- C09D123/02—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D123/10—Homopolymers or copolymers of propene
- C09D123/12—Polypropene
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09D133/10—Homopolymers or copolymers of methacrylic acid esters
- C09D133/12—Homopolymers or copolymers of methyl methacrylate
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- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- C09D201/00—Coating compositions based on unspecified macromolecular compounds
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2244—Oxides; Hydroxides of metals of zirconium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
Abstract
The present invention relates to a kind of flexible touch screen base materials and preparation method thereof, which is characterized in that the flexible touch screen base material includes the nano material and substrate body material that weight ratio is 0.1 ~ 80wt%；The one kind of the wherein described substrate body material in transparent PI, acrylic based material or epoxylite；The wherein described nano material is selected from nano-silicon nitride, Nano-meter SiO_22, nanometer Al2O3, nano aluminum nitride, nano-TiO2, nanometer ZrO2, nano-MgO or nanometer HfO2In one kind；And it is related to the preparation method of the flexible touch screen base material and the display panel containing the flexible touch screen base material.Compared with prior art, flexible touch screen base material of the invention simultaneously have thin thickness, high rigidity, anti-wear, can soft bendable performance.
Description
Technical field
The present invention relates to touch screen fields more particularly to a kind of flexible touch screen base material and preparation method thereof.
Background technology
Organic electroluminescent LED（OLED）Possess in each performance significantly as a kind of completely new display technology
Advantage, such as with all solid state, thin, small, light-weight from main light emission, brightness height, high-resolution, fast response time, thickness,
So that it is widely used in lighting system, communication system, fine definition and shows the technical fields such as even military affairs.
The packaging protection generally use cover-plate glass of flexible OLED seriously limits flexibility although packaging effect is fine
The application of aspect, and there is thickness when reaching certain high rigidity in the thin film packaging material in the flexible package developed at present
Thicker problem, this largely affect flexible OLED can soft bendable performance, and encapsulating structure blocks water oxygen ability also
It is to be improved.Meanwhile the touch screen being used cooperatively with flexible OLED（TP）Also it is developed, as shown in Figure 1, each research and development institution
Or the TP of the announced flexibility OLED of company be typically act on a substrate, then by base material by glue laminating in flexibility
On OLED, to realize the combination between TP films group and the cover-plate glass of flexibility OLED, TP base materials are usually COP/PET/PC/PEN
Deng, thickness in tens microns of even microns up to a hundred, thickness is thicker, and by glue laminating on OLED, further increases
Integral thickness, at present the limitation of TP base materials and the mode of glue laminating seriously limit flexible OLED can soft bendable performance.
Therefore be badly in need of it is a kind of and meanwhile have thin thickness, high rigidity, anti-wear, can soft bendable performance flexible TP base materials.
Invention content
The purpose of the present invention is to overcome the defects in the prior art, designs a kind of flexible touch screen base material and its preparation side
Method, flexible touch screen base material can not only be used for cover-plate glass encapsulation flexibility OLED, but also as the base material of flexible TP, with thin and thick
Degree, high rigidity, anti-wear, can soft bendable performance the advantages of.
To achieve the above object, the present invention adopts the following technical scheme that：
The present invention provides a kind of flexible touch screen base material, including substrate body material and nano material, wherein the nano material
Weight ratio be 0.1 ~ 80wt%.
Preferably, the one kind of the substrate body material in transparent PI, acrylic based material or epoxylite, more
Preferably clear PI.
Preferably, the nano material is selected from nano-silicon nitride, Nano-meter SiO_22, nanometer Al2O3, nano aluminum nitride, nanometer
TiO2, nanometer ZrO2, nano-MgO or nanometer HfO2In one kind, more preferable nano-silicon nitride.
Preferably, the substrate body material is selected from acrylate, methacrylic acid, polyureas, polyethers, polyurethane, poly- third
Olefin(e) acid ester, polyethylene, polypropylene, polyethylene terephthalate, makrolon, hexamethyldisiloxane, polymethylacrylic acid
One kind of methyl esters, epoxy, acrylic resin, polyimide resin, silicones, polyimides, fibre reinforced plastics.
Preferably, the fibre reinforced plastics include fiberglass reinforced plastics.
Preferably, the thickness of the substrate body material is 2 ~ 40 μm.
Preferably, the grain size of the nano material is 10nm ~ 90nm.
The present invention also provides a kind of preparation methods of above-mentioned flexible touch screen base material, which is characterized in that includes the following steps：
Step 1: nano material is added in substrate body material, and it is uniformly mixed；
Step 2: the material being uniformly mixed in step 1 is formed film using coating method.
Wherein nano material need to pass through modification, such as surface activation process.
The present invention also provides a kind of display panels containing above-mentioned flexible touch screen base material, including：
Flexible OLED components；
Thin-film packing structure is located on the flexibility OLED components；
Flexible touch screen base material is directly coated on the thin-film packing structure；
Flexible touch screen is set up directly on flexible touch screen base material.
Compared with prior art, the invention has the advantages that：
Substrate body material transmitance is good and flexible, and thickness is thin, when nano material addition is in material of main part, plays disperse
Humidification, anti-wear performance enhancement, while hardness can be enhanced, it strengthens and lower film is encapsulated（TFE）Protection；
The substrate body material not only cover-plate glass as flexibility OLED of nano material is added, but also as the base material of flexible TP, together
When it is applied directly on TFE, reduce the use of glue, reduce the thickness of overall package structure；
The substrate body material for adding nano material blocks water the enhancing of oxygen ability to TFE, reinforces the packaging effect of flexible OLED.
Description of the drawings
Fig. 1 is the schematic diagram of flexible OLED display panel in the prior art；
Fig. 2 is the schematic diagram of the flexible OLED display panel containing flexibility TP base materials of the invention；
Reference numeral in figure is：
11, flexibility OLED components；12, TFE structures；13, glue；14, COP/PC/PET/PEN base materials；15, flexibility TP；
21, flexibility OLED components；22, TFE structures；23, flexibility TP base materials；24, flexibility TP.
Specific implementation mode
With reference to the accompanying drawings and examples, the specific implementation mode of the present invention is further described.Following embodiment is only
For clearly illustrating technical scheme of the present invention, and not intended to limit the protection scope of the present invention.
The present invention provides a kind of flexibility TP base materials comprising the nano material and surplus that weight ratio is 0.1 ~ 80wt%
Substrate body material；Wherein nano material is nano-silicon nitride, Nano-meter SiO_22, nanometer Al2O3, nano aluminum nitride, nano-TiO2、
Nanometer ZrO2, nano-MgO or nanometer HfO2In one kind；Wherein substrate body material is transparent PI, acrylic based material or epoxy
One kind in resinoid；The preferred nano-silicon nitride of nano material, substrate body material preferably clear PI.
The preparation method of above-mentioned flexibility TP base materials is that nano material is added in substrate body material, and is uniformly mixed,
Then coating method is used to form a film.
As described in Figure 2, the flexible OLED display panel containing flexibility TP base materials of the invention includes the flexibility positioned at bottom
OLED components 21, are directly coated on thin-film packing structure 22 thin-film packing structure 22 on flexible OLED components 21
Flexible TP base materials 23 and the flexible touch screen 24 that is set up directly on flexible touch screen base material 23.
Section Example is exemplified below to be further described the specific implementation mode of the present invention.Following embodiments are only used for
Clearly illustrate technical scheme of the present invention, and not intended to limit the protection scope of the present invention.
Embodiment one
The nano-silicon nitride that grain size is 10nm, weight ratio is 0.1% is dissolved in using supersonic oscillations in transparent PI solution, so
It at the uniform velocity stirs under certain condition afterwards certain time, forms certain modification by copolymerization between nano-silicon nitride and transparent PI, make two
The compatibility of person improves, and forms chemical bond between being allowed to, enhances interfacial adhesion between the two, the flexible TP base materials then prepared
It is applied directly on TEF by way of coating, and flexibility TP is set up directly on the flexibility TP base materials, the flexible TP of preparation
Base material thickness is 2 ~ 40 μm.
Embodiment two
The nano-silicon nitride that grain size is 60nm, weight ratio is 50% is dissolved in using supersonic oscillations in transparent PI solution, then
Both it at the uniform velocity stirs under certain condition certain time, forms certain modification by copolymerization between nano-silicon nitride and transparent PI, make
Compatibility improve, form chemical bond between being allowed to, enhance interfacial adhesion between the two, the flexible TP base materials then prepared are logical
The mode for crossing coating is applied directly on TEF, and flexibility TP is set up directly on the flexibility TP base materials, the flexible TP bases of preparation
Material thickness is 2 ~ 40 μm.
Embodiment three
The nano-silicon nitride that grain size is 90nm, weight ratio is 80% is dissolved in using supersonic oscillations in transparent PI solution, then
Both it at the uniform velocity stirs under certain condition certain time, forms certain modification by copolymerization between nano-silicon nitride and transparent PI, make
Compatibility improve, form chemical bond between being allowed to, enhance interfacial adhesion between the two, the flexible TP base materials then prepared are logical
The mode for crossing coating is applied directly on TEF, and flexibility TP is set up directly on the flexibility TP base materials, the flexible TP bases of preparation
Material thickness is 2 ~ 40 μm.
Example IV
By the nanometer HfO that grain size is 50nm, weight ratio is 70%2It is dissolved in transparent PI solution using supersonic oscillations, is then existed
It is at the uniform velocity stirred under certain condition certain time, nanometer HfO2Certain modification by copolymerization is formed between transparent PI, makes the phase of the two
Capacitive improves, and forms chemical bond between being allowed to, enhances interfacial adhesion between the two, the flexible TP base materials then prepared pass through painting
The mode of cloth is applied directly on TEF, and flexibility TP is set up directly on the flexibility TP base materials, and the flexible TP base materials of preparation are thick
Degree is 2 ~ 40 μm.
Embodiment five
By the nanometer HfO that grain size is 30nm, weight ratio is 20%2It is dissolved in the solution of acrylic material using supersonic oscillations,
Then it at the uniform velocity stirs under certain condition certain time, nanometer HfO2Certain modification by copolymerization is formed between acrylic material,
So that the compatibility of the two is improved, forms chemical bond between being allowed to, enhance interfacial adhesion between the two, the flexible TP then prepared
Base material is applied directly to by way of coating on TEF, and flexibility TP is set up directly on the flexibility TP base materials, preparation it is soft
Property TP base material thickness be 2 ~ 40 μm.
Embodiment six
By the nanometer ZrO that grain size is 30nm, weight ratio is 7%2It is dissolved in the solution of epoxy resin using supersonic oscillations, so
It at the uniform velocity stirs under certain condition afterwards certain time, nanometer ZrO2Certain modification by copolymerization is formed between epoxy resin, makes two
The compatibility of person improves, and forms chemical bond between being allowed to, enhances interfacial adhesion between the two, the flexible TP base materials then prepared
It is applied directly on TEF by way of coating, and flexibility TP is set up directly on the flexibility TP base materials, the flexible TP of preparation
Base material thickness is 2 ~ 40 μm.
Embodiment seven
The nano-silicon nitride that grain size is 50nm, weight ratio is 15% is dissolved in fiberglass reinforced plastics using supersonic oscillations
Solution in, then at the uniform velocity stir under certain condition certain time, shape between nano-silicon nitride and fiberglass reinforced plastics
At certain modification by copolymerization, so that the compatibility of the two is improved, chemical bond is formed between being allowed to, the interface enhanced between the two is viscous
Knot, the flexible TP base materials then prepared are applied directly to by way of coating on TEF, and flexibility TP be set up directly on it is described soft
Property TP base materials on, the flexible TP base material thickness of preparation is 2 ~ 40 μm.
Embodiment eight
The nano-silicon nitride that grain size is 20nm, weight ratio is 10% is dissolved in using supersonic oscillations in polyacrylic solution, so
It at the uniform velocity stirs under certain condition afterwards certain time, forms certain modification by copolymerization between nano-silicon nitride and polypropylene, make two
The compatibility of person improves, and forms chemical bond between being allowed to, enhances interfacial adhesion between the two, the flexible TP base materials then prepared
It is applied directly on TEF by way of coating, and flexibility TP is set up directly on the flexibility TP base materials, the flexible TP of preparation
Base material thickness is 2 ~ 40 μm.
Embodiment nine（Flexible OLED display panel）
It is of the present invention flexibility OLED display panel include positioned at bottom flexible OLED components, be located at flexibility OLED components it
On thin-film packing structure, directly coated on thin-film packing structure flexible TP base materials and be set up directly on flexible TP base materials
On flexible touch screen, the thickness of flexible TP base materials is 2 ~ 40 μm.
Comparative example one（Flexible OLED display panel）
As shown in Figure 1, the flexible OLED display panel in comparative example includes positioned at the flexible OLED components of bottom, positioned at flexibility
Thin-film packing structure on OLED components, with COP/PC/PET/PEN base materials of thin-film packing structure glue sticking and directly
Flexible touch screen on base material is set, and the thickness of COP/PC/PET/PEN base materials is tens microns to microns up to a hundred.
By embodiment one ~ nine and comparative example one it is found that after using flexibility TP base materials of the present invention, thickness is about original
1/10, reduce the use of glue, reduce the thickness of whole display panel, enhancing can soft bendable performance；And in base material master
Inorganic nano material, anti-wear performance enhancement are added in body material, while can enhance hardness, strengthen and lower film is encapsulated
（TFE）Protection；Add inorganic nano material after, flexible TP base materials to TFE block water oxygen ability enhancing, to the envelope of flexible OLED
Effect is filled to reinforce.
Specific embodiments of the present invention are described in detail above, but it is only used as example, the present invention is not intended to limit
In particular embodiments described above.To those skilled in the art, it is any to the practicality carry out equivalent modifications and replace
In generation, is also all among scope of the invention.Therefore, without departing from the spirit and scope of the invention made by impartial conversion and repair
Change, all should be contained within the scope of the invention.
Claims (9)
1. a kind of flexible touch screen base material, which is characterized in that including substrate body material and nano material, wherein the nanometer material
The weight ratio of material is 0.1 ~ 80wt%.
2. flexible touch screen base material according to claim 1, which is characterized in that the substrate body material is selected from transparent
One kind in PI, acrylic based material or epoxylite.
3. flexible touch screen base material according to claim 1, which is characterized in that the nano material is selected from nano silicon nitride
Silicon, Nano-meter SiO_22, nanometer Al2O3, nano aluminum nitride, nano-TiO2, nanometer ZrO2, nano-MgO or nanometer HfO2In one kind.
4. flexible touch screen base material according to claim 1, which is characterized in that the substrate body material is selected from acrylic acid
Ester, methacrylic acid, polyureas, polyethers, polyurethane, polyacrylate, polyethylene, polypropylene, polyethylene terephthalate,
Makrolon, hexamethyldisiloxane, polymethyl methacrylate, epoxy, acrylic resin, polyimide resin, silicon
One kind of resin, polyimides, fibre reinforced plastics.
5. flexible touch screen base material according to claim 4, which is characterized in that the fibre reinforced plastics include glass fibers
Tie up reinforced plastics.
6. flexible touch screen base material according to claim 1, which is characterized in that the thickness of the substrate body material be 2 ~
40μm。
7. flexible touch screen base material according to claim 1, which is characterized in that the grain size of the nano material be 10nm ~
90nm。
8. a kind of preparation method of flexible touch screen base material as described in any one of claim 1 ~ 7, which is characterized in that packet
Include following steps：
Step 1: nano material is added in substrate body material, and it is uniformly mixed；
Step 2: the material being uniformly mixed in step 1 is formed film using coating method.
9. display panel of the one kind containing the flexible touch screen base material described in any one of claim 1 ~ 7, which is characterized in that
Including：
Flexible OLED components；
Thin-film packing structure is located on the flexibility OLED components；
Flexible touch screen base material is directly coated on the thin-film packing structure；
Flexible touch screen is set up directly on the flexible touch screen base material.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109721887A (en) * | 2018-12-29 | 2019-05-07 | 武汉华星光电技术有限公司 | The preparation method of high molecule nano composite material |
| CN112920603A (en) * | 2021-01-28 | 2021-06-08 | 苏州泰仑电子材料有限公司 | High-temperature-resistant scratch-resistant high-transparency PI film |
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| CN102825889A (en) * | 2012-08-10 | 2012-12-19 | 京东方科技集团股份有限公司 | Display substrate and display device having same |
| CN104576964A (en) * | 2014-12-17 | 2015-04-29 | 深圳市华星光电技术有限公司 | Transparent flexible encapsulation substrate and flexible OLED encapsulation method |
| CN105226198A (en) * | 2015-10-13 | 2016-01-06 | 京东方科技集团股份有限公司 | A kind of waterproof transmission increasing flexible OLED devices device and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102825889A (en) * | 2012-08-10 | 2012-12-19 | 京东方科技集团股份有限公司 | Display substrate and display device having same |
| CN104576964A (en) * | 2014-12-17 | 2015-04-29 | 深圳市华星光电技术有限公司 | Transparent flexible encapsulation substrate and flexible OLED encapsulation method |
| CN105226198A (en) * | 2015-10-13 | 2016-01-06 | 京东方科技集团股份有限公司 | A kind of waterproof transmission increasing flexible OLED devices device and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109721887A (en) * | 2018-12-29 | 2019-05-07 | 武汉华星光电技术有限公司 | The preparation method of high molecule nano composite material |
| US11306185B2 (en) | 2018-12-29 | 2022-04-19 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Method for preparing polymer nanocomposite |
| CN112920603A (en) * | 2021-01-28 | 2021-06-08 | 苏州泰仑电子材料有限公司 | High-temperature-resistant scratch-resistant high-transparency PI film |
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Application publication date: 20180807 |
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