CN108192418A - A kind of quantum dot ink-manufacturing method, quantum dot color membrane substrates and preparation method thereof - Google Patents
A kind of quantum dot ink-manufacturing method, quantum dot color membrane substrates and preparation method thereof Download PDFInfo
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- 239000002096 quantum dot Substances 0.000 title claims abstract description 173
- 239000000758 substrate Substances 0.000 title claims abstract description 34
- 239000012528 membrane Substances 0.000 title claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 165
- 239000000017 hydrogel Substances 0.000 claims abstract description 111
- 239000004005 microsphere Substances 0.000 claims abstract description 96
- 238000000034 method Methods 0.000 claims description 28
- 230000001681 protective effect Effects 0.000 claims description 28
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 16
- SBIBMFFZSBJNJF-UHFFFAOYSA-N selenium;zinc Chemical compound [Se]=[Zn] SBIBMFFZSBJNJF-UHFFFAOYSA-N 0.000 claims description 14
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 10
- 229910000673 Indium arsenide Inorganic materials 0.000 claims description 7
- 229910018219 SeTe Inorganic materials 0.000 claims description 7
- UHYPYGJEEGLRJD-UHFFFAOYSA-N cadmium(2+);selenium(2-) Chemical compound [Se-2].[Cd+2] UHYPYGJEEGLRJD-UHFFFAOYSA-N 0.000 claims description 7
- RPQDHPTXJYYUPQ-UHFFFAOYSA-N indium arsenide Chemical compound [In]#[As] RPQDHPTXJYYUPQ-UHFFFAOYSA-N 0.000 claims description 7
- FESBVLZDDCQLFY-UHFFFAOYSA-N sete Chemical compound [Te]=[Se] FESBVLZDDCQLFY-UHFFFAOYSA-N 0.000 claims description 7
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 7
- 239000002904 solvent Substances 0.000 claims description 6
- 239000006228 supernatant Substances 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 5
- 238000005538 encapsulation Methods 0.000 claims description 5
- 229920002120 photoresistant polymer Polymers 0.000 claims description 5
- 229920002401 polyacrylamide Polymers 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 210000003608 fece Anatomy 0.000 claims description 3
- 238000007641 inkjet printing Methods 0.000 claims description 3
- 239000010871 livestock manure Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 2
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims 1
- 239000004743 Polypropylene Substances 0.000 claims 1
- 150000001408 amides Chemical class 0.000 claims 1
- -1 polypropylene Polymers 0.000 claims 1
- 229920001155 polypropylene Polymers 0.000 claims 1
- 239000002798 polar solvent Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 239000002562 thickening agent Substances 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 239000002131 composite material Substances 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 7
- 230000004048 modification Effects 0.000 description 7
- 238000012986 modification Methods 0.000 description 7
- 239000013110 organic ligand Substances 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000008542 thermal sensitivity Effects 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000012769 display material Substances 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000011806 microball Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- LPXFITACVAQQAL-UHFFFAOYSA-M sodium;prop-2-enoylazanide Chemical compound [Na+].[NH-]C(=O)C=C LPXFITACVAQQAL-UHFFFAOYSA-M 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000010557 suspension polymerization reaction Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- 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
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/106—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C09D11/107—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from unsaturated acids or derivatives thereof
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- C—CHEMISTRY; METALLURGY
- 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
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
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Abstract
The embodiment of the invention discloses a kind of quantum dot ink-manufacturing method, including step：Step 1 provides hydrogel microsphere, green quanta point material, red quantum dot material, the green quanta point material and red quantum dot material are loaded into hydrogel microsphere respectively, formation is mounted with the hydrogel microsphere of green quanta point material and is mounted with the hydrogel microsphere of red quantum dot material；The hydrogel microsphere for being mounted with green quanta point material or red quantum dot material is distributed in polar solvent, and adds in thickener and form green quantum dot ink or red quantum dot ink by step 2 respectively.The invention also discloses a kind of quantum dot color membrane substrates and preparation methods.Implement the embodiment of the present invention, by carrying out being compounded to form composite construction quanta point material and hydrogel microsphere, the stability and fluorescent effect of quanta point material can be improved.
Description
Technical field
The present invention relates to display field, more particularly to a kind of quantum dot ink-manufacturing method, quantum dot color membrane substrates and its
Preparation method.
Background technology
TFT-LCD captures display line industry leading position for a long time as mainstream display technology, in order to pursue high colour gamut and excellent
Elegant color restoration capability, the exploitation of new display material seem increasingly important.Quantum dot（Quantum dot、QD）Material is
One of luminescent material that last decade attracts most attention is concentrated with luminescent spectrum, and excitation purity is high, and emission wavelength is highly adjustable etc. excellent
Point, the colour gamut and color restoration capability of LCD display can be increased substantially by being applied to TFT-LCD.
In the prior art, quantum dot can be dispersed among polar solvent by means such as surface modifications or nonpolarity is molten
In agent, suitable surface environment, dispersant and solvent are then selected, is configured to quantum dot ink by printing, transferring, spin coating
Etc. modes form the quantum dot films of needs.Such as in one application, additive can be added in based on quanta point material
To adjust ink property, color film is formed eventually by corresponding processing procedure（Color Filter, CF）, it is this coloured silk film can be referred to as measure
Sub- stippling film.
But conventionally, as variation of hot environment and acid-base property in practical processing procedure etc. can be to quantum
Point surface impacts, and results in the decline of quantum dot fluorescence intensity.In addition, during modify quantum dot in the past,
The organic ligand coated structure of script can be inevitably destroyed, declines quantum dot fluorescence intensity.
Invention content
The technical problems to be solved by the invention are, provide a kind of quantum dot ink-manufacturing method, quantum stippling film base
Plate and preparation method thereof.By carrying out being compounded to form composite construction quanta point material and hydrogel microsphere, quantum can be improved
The stability and fluorescent effect of point material.
In order to solve the above-mentioned technical problem, the one side of the embodiment of the present invention provides kind of a quantum dot ink-manufacturing method,
It includes the following steps：
Step 1 provides hydrogel microsphere, green quanta point material, red quantum dot material, by the green quanta point material and
Red quantum dot material is loaded into hydrogel microsphere respectively, forms the hydrogel microsphere and dress for being mounted with green quanta point material
It is loaded with the hydrogel microsphere of red quantum dot material；
The hydrogel microsphere for being mounted with green quanta point material or red quantum dot material is distributed to pole by step 2 respectively
In property solvent, and add in thickener and form green quantum dot ink or red quantum dot ink.
Wherein, the step 1 further comprises：
Hydrogel microsphere is soaked in tetrahydrofuran liquid, and is stirred, is discarded after carrying out centrifugal treating by centrifuge
Clear liquid repeats the above process pre-determined number, obtains dry hydrogel microsphere；
The hydrogel microsphere of the drying is scattered in the chloroform for being mixed with red quantum dot material or green quanta point material, and
It is stirred, red quantum dot material or green quanta point material is made to be loaded into the hydrogel microsphere；
Centrifugal treating is carried out by centrifuge, discards supernatant, acquisition is mounted with red quantum dot material or green quantum dot material
The hydrogel microsphere of material.
Wherein, the hydrogel microsphere be polyacrylamide and its derivative species hydrogel microsphere with porous structure,
Its molecular formula is：
。
Wherein, the red quantum dot material includes positioned at the first intermediate luminous nucleon and is coated on around the first luminous nucleon
The first inorganic protective shell, the material of first luminous nucleon includes CdSe, Cd2It is one or more in SeTe and InAs, institute
The material for stating the first inorganic protective shell includes CdS, ZnSe, ZnCdS2, it is one or more in ZnS and ZnO；
The green quanta point material includes positioned at the second intermediate luminous nucleon and is coated on the second luminous circumnuclear second nothing
Machine protective shell, the material of second luminous nucleon include ZnCdSe2, InP and Cd2It is one or more in SSe, second nothing
The material of machine protective shell includes CdS, ZnSe, ZnCdS2, it is one or more in ZnS and ZnO.
Correspondingly, the another aspect of the embodiment of the present invention provides a kind of quantum dot color membrane substrates, includes at least：Transparent base
Plate, the chromatic filter layer being sequentially located on the transparent substrate, quantum dot layer, encapsulation flatness layer, polarizing layer and electrically conducting transparent
Layer；
Wherein, several pixel regions are formed in transparent substrate, each pixel region include the red subpixel areas arranged successively,
Green subpixel areas, Transparent color subpixel area；
It is formed on the quantum dot layer of the chromatic filter layer and is located at the red subpixel areas, green subpixel areas respectively
And transparent quantum dot region, red quantum dot area and green quantum dot region in Transparent color subpixel area, the transparent quantum dot
It is spaced by photoresist between area, red quantum dot area and green quantum dot region；
Wherein, the red quantum dot area includes the hydrogel microsphere for being mounted with red quantum dot material；The green quantum
Point area includes the hydrogel microsphere for being mounted with green quanta point material；The transparent quantum dot region includes unloaded amount of green color
The hydrogel microsphere of son point material or red quantum dot material.
Wherein, the hydrogel microsphere be polyacrylamide and its derivative species hydrogel microsphere with porous structure,
Its molecular formula is：
。
Wherein, the red quantum dot material includes positioned at the first intermediate luminous nucleon and is coated on around the first luminous nucleon
The first inorganic protective shell, the material of first luminous nucleon includes CdSe, Cd2It is one or more in SeTe and InAs, institute
The material for stating the first inorganic protective shell includes CdS, ZnSe, ZnCdS2, it is one or more in ZnS and ZnO；
The green quanta point material includes positioned at the second intermediate luminous nucleon and is coated on the second luminous circumnuclear second nothing
Machine protective shell, the material of second luminous nucleon include ZnCdSe2, InP and Cd2It is one or more in SSe, second nothing
The material of machine protective shell includes CdS, ZnSe, ZnCdS2, it is one or more in ZnS and ZnO.
Correspondingly, another aspect of the invention also provides a kind of method for preparing quantum stippling ilm substrate, including：
One transparent substrate is provided, and forms several pixel regions on the substrate, each pixel region includes arranging successively
The red subpixel areas of cloth, green subpixel areas, Transparent color subpixel area；
One optical filter is provided on the transparent substrate, and on it thang-kng hinder to be formed corresponding to the red subpixel areas,
Green subpixel areas and first area, second area, third region in Transparent color subpixel area；
Respectively by the red quantum dot ink comprising the hydrogel microsphere for being mounted with red quantum dot material in a manner of inkjet printing
Water instills first area, forms red quantum dot area；The green for the hydrogel microsphere for being mounted with green quanta point material will be included
Quantum dot ink instills second area, forms green quantum dot region；Unloaded red quantum dot material and green manure color will be included
The ink of the hydrogel microsphere of quanta point material instills the third region, forms transparent quantum dot region；
In the quantum dot layer enterprising one formed by the red quantum dot area, green quantum dot region and transparent quantum dot region, photoresist
Step sequentially forms encapsulation plane layer, polaroid, transparency conducting layer.
Wherein, the red quantum dot ink and green quantum dot ink are obtained by following step：
Hydrogel microsphere is soaked in tetrahydrofuran liquid, and is stirred, is discarded after carrying out centrifugal treating by centrifuge
Clear liquid repeats the above process pre-determined number, obtains dry hydrogel microsphere；
The a small amount of tetrahydrofuran of the hydrogel microsphere of the drying is soaked, is scattered in and is mixed with red quantum dot material or amount of green color
It in the chloroform of son point material, and is stirred, red quantum dot material or green quanta point material is made to be loaded into the water-setting
In glue microballoon；
Centrifugal treating is carried out by centrifuge, discards supernatant, acquisition is mounted with red quantum dot material or green quantum dot material
The hydrogel microsphere of material.
Wherein, the hydrogel microsphere be polyacrylamide and its derivative species hydrogel microsphere with porous structure,
Its molecular formula is：
。
Wherein, the red quantum dot material includes positioned at the first intermediate luminous nucleon and is coated on around the first luminous nucleon
The first inorganic protective shell, the material of first luminous nucleon includes CdSe, Cd2It is one or more in SeTe and InAs, institute
The material for stating the first inorganic protective shell includes CdS, ZnSe, ZnCdS2, it is one or more in ZnS and ZnO；
The green quanta point material includes positioned at the second intermediate luminous nucleon and is coated on the second luminous circumnuclear second nothing
Machine protective shell, the material of second luminous nucleon include ZnCdSe2, InP and Cd2It is one or more in SSe, second nothing
The material of machine protective shell includes CdS, ZnSe, ZnCdS2, it is one or more in ZnS and ZnO.
Implement the embodiment of the present invention, have the advantages that：
Red quantum dot material or green quanta point material are mainly filled in heat safe by the technical solution of the embodiment of the present invention
Hydrogel microsphere, this preparation method can both keep the organic ligand structure of quantum dot surface not to be destroyed, and ensure its optics
Significant change will not occur for property, and can have the function that surface modification, can both keep quantum dot surface organic ligands
Stability, and its ph stability can be improved, quantum dot optical stability can be improved；
Hydrogel material of the present invention by adding in modification functional group in main chain, makes the thermal stability of hydrogel
The shortcomings that improving to 300 DEG C or more, improving previous hydrogel thermal sensitivity, makes the hydrogel fines for being mounted with quanta point material exist
Application in industrial process is improved；Meanwhile the quantum dot loaded in hydrogel fines will not be scattered in polar solvent or
In water, therefore clustering phenomena will not be occurred by solvent effect in film forming procedure, monodispersity is good.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of main flow schematic diagram of one embodiment of quantum dot ink-manufacturing method provided by the invention；
Fig. 2 is the structure diagram of the hydrogel microsphere involved in Fig. 1；
Fig. 3 is the structure diagram of the hydrogel microsphere for being mounted with red quantum dot material involved in Fig. 1；
Fig. 4 is the structure diagram of the hydrogel microsphere for being mounted with green quanta point material involved in Fig. 1；
Fig. 5 is a kind of structure diagram of one embodiment of quantum dot color membrane substrates provided by the invention；
Fig. 6 is a kind of main flow main flow signal of one embodiment of quantum dot color membrane substrates preparation method provided by the invention
Figure.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clearly complete
Ground describes, it is clear that described embodiment is only the part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art obtained under the premise of creative work is not made it is all its
Its embodiment, shall fall within the protection scope of the present invention.
Here, it should also be noted that, in order to avoid because having obscured the present invention during unnecessary details, in the accompanying drawings only
It shows the structure and/or processing step closely related with scheme according to the present invention, and is omitted little with relationship of the present invention
Other details.
As shown in Figure 1, show that the main flow of one embodiment of the preparation method of guide-lighting coating provided by the invention shows
It is intended to, together with reference to shown in Fig. 2 to Fig. 4.In this embodiment, which includes the following steps：
Step S10, hydrogel microsphere, green quanta point material, red quantum dot material are provided, by the green quanta point material
Be loaded into hydrogel microsphere respectively with red quantum dot material, be respectively formed be mounted with green quanta point material hydrogel it is micro-
Ball and the hydrogel microsphere for being mounted with red quantum dot material；
Specifically, in one example, the hydrogel microsphere is polyacrylamide and its derivative species with porous structure
Hydrogel microsphere, such as acrylamide-sodium p styrene sulfonate-n-vinyl pyrrolidone three-element copolymerized hydrogel microballoon（P
(AM-SSS-NVP)）, molecular formula is：
。
Specifically, it can be seen that it from the molecular formula and huge side group, band introduced in temperature sensitive hydrogel molecules
The method of modifying such as electric group, monomer containing sulfonic group and hydrophobic monomer can improve its temperature resistant capability, it is demonstrated experimentally that such hydrogel
Decomposition temperature is higher than 300 DEG C.The mode that suspension polymerisation may be used in the hydrogel microsphere prepares, in suspension polymerization
In, q. s. toluene and petroleum ether are added in oil phase, so as to prepare porous structure high molecular polymer microballoon.
In one embodiment, the green quanta point material and red quantum dot material are filled respectively in the step 1
It is loaded into hydrogel microsphere, is respectively formed the hydrogel microsphere for being mounted with green quanta point material and is mounted with red quantum dot material
The process of the hydrogel microsphere of material further comprises：
Hydrogel microsphere is soaked in tetrahydrofuran（THF）In liquid, and it is stirred（It such as stirs 1 hour）, by centrifuge into
Supernatant is discarded after row centrifugal treating, repeats the above process pre-determined number（More than three times）, obtain dry hydrogel microsphere；
The a small amount of tetrahydrofuran of the hydrogel microsphere of the drying is soaked, is scattered in and is mixed with red quantum dot material or amount of green color
In the chloroform of son point material, and it is stirred（Such as it stirs 24 hours）, make red quantum dot material or green quanta point material
It is loaded into the hydrogel microsphere；
Centrifugal treating is carried out by centrifuge（It is centrifuged 10 minutes for example, by using in the centrifuge of 4000 r/min）, discard supernatant
Liquid obtains the hydrogel microsphere for being mounted with red quantum dot material or green quanta point material.
Wherein, Fig. 2-Fig. 4 respectively illustrate hydrogel microsphere 1, the hydrogel microsphere 2 for being mounted with red quantum dot material,
The structure for being mounted with the hydrogel microsphere 3 of green quanta point material is not intended to.Wherein, hydrogel microsphere 1 has multiple pore structures
10.Multiple formation of red quantum dot material 20 are mounted in the pore structure 10 of hydrogel microsphere 1 and are mounted with red quantum dot material
The hydrogel microsphere 2 of material, the red quantum dot material 20 have the of the first luminous nucleon 200 of the first luminous nucleon 200 and cladding
One inorganic protective shell 201；Wherein, the material of first luminous nucleon 200 includes CdSe, Cd2One kind in SeTe and InAs or
A variety of, the material of the first inorganic protective shell 201 includes CdS, ZnSe, ZnCdS2, it is one or more in ZnS and ZnO.
Multiple green formation of quanta point material 30 are mounted in the pore structure 10 of hydrogel microsphere 1 and are mounted with green quantum
The hydrogel microsphere 3 of point material, the green quanta point material 30 have the second luminous nucleon 300 of the second luminous nucleon 300 and cladding
The second inorganic protective shell 301；Wherein, the material of second luminous nucleon 300 includes ZnCdSe2, InP and Cd2One in SSe
Kind or a variety of, material C dS, ZnSe, ZnCdS of the second inorganic protective shell 3012, it is one or more in ZnS and ZnO.
Step S11, the hydrogel microsphere for being mounted with green quanta point material or red quantum dot material is divided respectively
It is scattered in polar solvent, and adds in thickener and form green quantum dot ink or red quantum dot ink.
Correspondingly, another aspect of the invention also provides a kind of quantum dot color membrane substrates, as shown in figure 5, showing this hair
A kind of structure diagram of one embodiment of quantum dot color membrane substrates of bright offer, in this embodiment, the quantum stippling
Ilm substrate 4 includes at least：Transparent substrate 40, the chromatic filter layer 41 being sequentially located on the transparent substrate 40, quantum dot layer 42,
Encapsulate flatness layer 43, polarizing layer 44 and transparency conducting layer 45；
Wherein, several pixel regions are formed in transparent substrate 40, each pixel region includes the red sub-pixel area to arrange successively
Domain, green subpixel areas, Transparent color subpixel area；
It is formed on quantum layer 42 on the chromatic filter layer 41 and is located at the red subpixel areas, green sub-pixels respectively
Transparent quantum dot region 421, red quantum dot area 422 and green quantum dot region 423 on region and Transparent color subpixel area, institute
State it is spaced by photoresist 420 between transparent quantum dot region 421, red quantum dot area 422 and green quantum dot region 423, can
With understanding, it is provided on quantum layer 42 multigroup comprising transparent quantum dot region 421, red quantum dot area 422 and amount of green color
The combination in Zi Dian areas 423；
Wherein, the red quantum dot area 422 includes the hydrogel microsphere 2 for being mounted with red quantum dot material；The green
Quantum dot region 423 includes the hydrogel microsphere 3 for being mounted with green quanta point material；The transparent quantum dot region 421 includes
Unloaded green quanta point material or the hydrogel microsphere of red quantum dot material 1.
It is understood that the hydrogel microsphere 1, the red quantum dot material, the green quanta point material, dress
2 grade of the hydrogel microsphere 3 for being loaded with green quanta point material and the hydrogel microsphere for being mounted with red quantum dot material it is specific
Details is referred to the aforementioned description to Fig. 1 to Fig. 4, herein without being described in detail.
Correspondingly, another aspect of the present invention additionally provides a method for preparing quantum stippling ilm substrate, as shown in fig. 6,
Show the main flow schematic diagram of one embodiment of the present of invention, in this embodiment, the quantum stippling ilm substrate of preparing
Method includes：
Step S20 provides a transparent substrate 40, and several pixel regions, each pixel region is formed on the substrate 40
Domain includes the red subpixel areas arranged successively, green subpixel areas, Transparent color subpixel area；
Step S21 provides an optical filter on the transparent substrate 40, forms chromatic filter layer 41, and thang-kng resistance 420 on it
It is formed corresponding to the red subpixel areas, green subpixel areas and first area in Transparent color subpixel area, the
Two regions, third region；
Step S22, the red that will include the hydrogel microsphere 2 for being mounted with red quantum dot material respectively in a manner of inkjet printing
Quantum dot ink instills first area, forms red quantum dot area 422；The hydrogel for being mounted with green quanta point material will be included
The green quantum dot ink of microballoon 3 instills second area, forms green quantum dot region 423；Unloaded red quantum will be included
The ink of the hydrogel microsphere 1 of point material and green manure color quanta point material instills the third region, forms transparent quantum dot region
421；Specifically, in one example, ink viscosity can be adjusted, and instilling above-mentioned ink by adding in the additives such as thickener
After water, solvent flashing forms a film at 80 DEG C, between time of the process can control 30 ~ 600 minutes；
Step S23, what is formed by the red quantum dot area 422, green quantum dot region 423 and transparent quantum dot region 421
Quantum dot layer 42 further sequentially forms encapsulation plane layer 43, polaroid 44, transparency conducting layer 45.
It is understood that wherein, the red quantum dot ink and green quantum dot ink pass through the method shown in Fig. 1
It obtains, the description to Fig. 1 to Fig. 4 can be combined together.
Implement the embodiment of the present invention, have the advantages that：
Red quantum dot material or green quanta point material are mainly filled in heat safe by the technical solution of the embodiment of the present invention
Hydrogel microsphere, this preparation method can both keep the organic ligand structure of quantum dot surface not to be destroyed, and ensure its optics
Significant change will not occur for property, and can have the function that surface modification, can both keep quantum dot surface organic ligands
Stability, and its ph stability can be improved, quantum dot optical stability can be improved；
Hydrogel material of the present invention by adding in modification functional group in main chain, makes the thermal stability of hydrogel
The shortcomings that improving to 300 DEG C or more, improving previous hydrogel thermal sensitivity, makes the hydrogel fines for being mounted with quanta point material exist
Application in industrial process is improved；Meanwhile the quantum dot loaded in hydrogel fines will not be scattered in polar solvent or
In water, therefore clustering phenomena will not be occurred by solvent effect in film forming procedure, monodispersity is good.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any this practical relationship or sequence.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only will including those
Element, but also including other elements that are not explicitly listed or further include as this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
Also there are other identical elements in process, method, article or equipment including the element.
The above is only the specific embodiment of the application, it is noted that for the ordinary skill people of the art
For member, under the premise of the application principle is not departed from, several improvements and modifications can also be made, these improvements and modifications also should
It is considered as the protection domain of the application.
Claims (11)
1. a kind of quantum dot ink-manufacturing method, which is characterized in that include the following steps：
Step 1 provides hydrogel microsphere, green quanta point material, red quantum dot material, by the green quanta point material and
Red quantum dot material is loaded into hydrogel microsphere respectively, forms the hydrogel microsphere and dress for being mounted with green quanta point material
It is loaded with the hydrogel microsphere of red quantum dot material；
The hydrogel microsphere for being mounted with green quanta point material or red quantum dot material is distributed to pole by step 2 respectively
Property solvent in, form green quantum dot ink or red quantum dot ink.
2. the method as described in claim 1, which is characterized in that the step 1 further comprises：
Hydrogel microsphere is soaked in tetrahydrofuran liquid, and is stirred, is discarded after carrying out centrifugal treating by centrifuge
Clear liquid repeats the above process pre-determined number, obtains dry hydrogel microsphere；
The hydrogel microsphere of the drying is scattered in the chloroform for being mixed with red quantum dot material or green quanta point material, and
It is stirred, red quantum dot material or green quanta point material is made to be loaded into the hydrogel microsphere；
Centrifugal treating is carried out by centrifuge, discards supernatant, acquisition is mounted with red quantum dot material or green quantum dot material
The hydrogel microsphere of material.
3. method as claimed in claim 1 or 2, which is characterized in that the hydrogel microsphere is poly- third with porous structure
Acrylamide and its derivative species hydrogel microsphere, molecular formula are：
。
4. such as claim 3 any one of them method, which is characterized in that the red quantum dot material is included positioned at centre
First luminous nucleon includes with the first luminous circumnuclear first inorganic protective shell, the material of first luminous nucleon is coated on
CdSe、Cd2One or more in SeTe and InAs, the material of the first inorganic protective shell includes CdS, ZnSe, ZnCdS2、
It is one or more in ZnS and ZnO；
The green quanta point material includes positioned at the second intermediate luminous nucleon and is coated on the second luminous circumnuclear second nothing
Machine protective shell, the material of second luminous nucleon include ZnCdSe2, InP and Cd2It is one or more in SSe, second nothing
The material of machine protective shell includes CdS, ZnSe, ZnCdS2, it is one or more in ZnS and ZnO.
5. a kind of quantum dot color membrane substrates, which is characterized in that include at least：Transparent substrate is sequentially located on the transparent substrate
Chromatic filter layer, quantum dot layer, encapsulation flatness layer, polarizing layer and transparency conducting layer；
Wherein, several pixel regions are formed in transparent substrate, each pixel region include the red subpixel areas arranged successively,
Green subpixel areas, Transparent color subpixel area；
It is formed on the quantum dot layer of the chromatic filter layer and is located at the red subpixel areas, green subpixel areas respectively
And transparent quantum dot region, red quantum dot area and green quantum dot region in Transparent color subpixel area, the transparent quantum dot
It is spaced by photoresist between area, red quantum dot area and green quantum dot region；
Wherein, the red quantum dot area includes the hydrogel microsphere for being mounted with red quantum dot material；The green quantum
Point area includes the hydrogel microsphere for being mounted with green quanta point material；The transparent quantum dot region includes unloaded amount of green color
The hydrogel microsphere of son point material or red quantum dot material.
6. quantum dot color membrane substrates as claimed in claim 5, which is characterized in that the hydrogel microsphere is with porous structure
Polyacrylamide and its derivative species hydrogel microsphere, molecular formula be：
。
7. quantum dot color membrane substrates as claimed in claim 6, which is characterized in that the red quantum dot material is included in being located at
Between the first luminous nucleon and be coated on first and shine circumnuclear first inorganic protective shell, the material of first luminous nucleon includes
CdSe、Cd2One or more in SeTe and InAs, the material of the first inorganic protective shell includes CdS, ZnSe, ZnCdS2、
It is one or more in ZnS and ZnO；
The green quanta point material includes positioned at the second intermediate luminous nucleon and is coated on the second luminous circumnuclear second nothing
Machine protective shell, the material of second luminous nucleon include ZnCdSe2, InP and Cd2It is one or more in SSe, second nothing
The material of machine protective shell includes CdS, ZnSe, ZnCdS2, it is one or more in ZnS and ZnO.
8. a kind of preparation method of quantum dot color membrane substrates, which is characterized in that including：
One transparent substrate is provided, and forms several pixel regions on the substrate, each pixel region includes arranging successively
The red subpixel areas of cloth, green subpixel areas, Transparent color subpixel area；
Chromatic filter layer is set on the transparent substrate, and thang-kng hinders to be formed corresponding to the red sub-pixel area on it
Domain, green subpixel areas and first area, second area, third region in Transparent color subpixel area；
Respectively by the red quantum dot ink comprising the hydrogel microsphere for being mounted with red quantum dot material in a manner of inkjet printing
Water instills first area, forms red quantum dot area；The green for the hydrogel microsphere for being mounted with green quanta point material will be included
Quantum dot ink instills second area, forms green quantum dot region；Unloaded red quantum dot material and green manure color will be included
The ink of the hydrogel microsphere of quanta point material instills the third region, forms transparent quantum dot region；
In the quantum dot layer enterprising one formed by the red quantum dot area, green quantum dot region and transparent quantum dot region, photoresist
Step sequentially forms encapsulation plane layer, polaroid, transparency conducting layer.
9. method as claimed in claim 8, which is characterized in that the red quantum dot ink and green quantum dot ink pass through
Following step obtains：
Hydrogel microsphere is soaked in tetrahydrofuran liquid, and is stirred, is discarded after carrying out centrifugal treating by centrifuge
Clear liquid repeats the above process pre-determined number, obtains dry hydrogel microsphere；
The hydrogel microsphere of the drying is scattered in the chloroform for being mixed with red quantum dot material or green quanta point material, and
It is stirred, red quantum dot material or green quanta point material is made to be loaded into the hydrogel microsphere；
Centrifugal treating is carried out by centrifuge, discards supernatant, acquisition is mounted with red quantum dot material or green quantum dot material
The hydrogel microsphere of material.
10. method as claimed in claim 9, which is characterized in that the hydrogel microsphere is the polypropylene with porous structure
Amide and its derivative species hydrogel microsphere, molecular formula are：
。
11. method as claimed in claim 10, which is characterized in that the red quantum dot material is included positioned at intermediate first
Luminous nucleon and be coated on first and shine circumnuclear first inorganic protective shell, the material of first luminous nucleon include CdSe,
Cd2One or more in SeTe and InAs, the material of the first inorganic protective shell includes CdS, ZnSe, ZnCdS2, ZnS and
It is one or more in ZnO；
The green quanta point material includes positioned at the second intermediate luminous nucleon and is coated on the second luminous circumnuclear second nothing
Machine protective shell, the material of second luminous nucleon include ZnCdSe2, InP and Cd2It is one or more in SSe, second nothing
The material of machine protective shell includes CdS, ZnSe, ZnCdS2, it is one or more in ZnS and ZnO.
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Application publication date: 20180622 |