CN109608939A - Quantum dot ink and quantum stippling film - Google Patents
Quantum dot ink and quantum stippling film Download PDFInfo
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- CN109608939A CN109608939A CN201811202836.4A CN201811202836A CN109608939A CN 109608939 A CN109608939 A CN 109608939A CN 201811202836 A CN201811202836 A CN 201811202836A CN 109608939 A CN109608939 A CN 109608939A
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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
- C09D11/30—Inkjet printing inks
- C09D11/36—Inkjet printing inks based on non-aqueous solvents
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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
- C09D11/50—Sympathetic, colour changing or similar inks
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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
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
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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
- G02F1/1336—Illuminating devices
- G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light
Abstract
This application discloses a kind of quantum dot ink and quantum stippling films.Wherein, quantum dot ink includes quantum dot, light diffusion particle and solvent, and the solvent includes at least one esters solvent with cyclic structure and at least one aromatic solvent.The quantum dot ink of the application uses the esters for having cyclic structure and aromatic hydrocarbon as mixed solvent, and controls the two content within the scope of certain proportion, effectively increases the dispersion stabilization of light diffusion particle in the ink.Smooth using process when ink progress inkjet printing, nonchoking nozzle, obtained quantum stippling film planarization is good, and uniformly, emitting brightness is high for film forming.
Description
Technical field
The application belongs to quantum dot light emitting technical field more particularly to a kind of quantum dot ink and quantum stippling film.
Background technique
Quanta point material has many advantages, such as that excitation purity is high, luminescent color is high with size adjustable, phototransformation efficiency.Use quantum
When point makees the light conversion material of color film (color filter) of LCD (Liquid crystal display, liquid crystal display),
It is remarkably improved the colour gamut of display and the utilization efficiency to backlight.Currently, the preparation of quantum stippling film (QDCF) mainly utilizes
Quantum dot light photoresist, but this method is more demanding to the heat-resisting of quanta point material itself, acid-proof alkaline, the solidification of photoresist
Journey can generate adverse effect to the luminous efficiency of quantum dot itself, and the mode of photoetching can consume a large amount of quantum dot, cause
Waste of material, higher cost.
To solve the above problems, quantum dot can be dispersed to be configured to quantum dot ink in a solvent, pass through inkjet printing
Mode prepares quantum stippling film, and it is bright to improve going out for quantum stippling film that light diffusion particle can also be added in quantum dot ink
Degree.But bad dispersibility of the light diffusion particle in ink system, it is easy coagulation, influences printing effect.In addition, the prior art
In quantum dot ink often film forming is poor, print it is not smooth, be easy plug nozzle.
Summary of the invention
In view of the above technical problems, the application provides a kind of quantum dot ink and quantum stippling film.
According to a first aspect of the present application, a kind of quantum dot ink is provided, including quantum dot, light diffusion particle and molten
Agent, the solvent include at least one esters solvent with cyclic structure and at least one aromatic solvent.
Further, the mass ratio of the esters solvent and aromatic solvent is 1:(0.7~9).
Further, the esters solvent at least differs 20 DEG C with the boiling point of aromatic solvent；Preferably, standard atmospheric pressure
Under, the boiling point of the esters solvent is 150~320 DEG C, and the boiling point of the aromatic solvent is 130~320 DEG C.
Further, the cyclic structure is alicyclic structure；The esters solvent with cyclic structure is selected from formic acid ring
Own ester, cyclohexyl acetate, methyl cyclohexanol acetate, cyclohexyl propionate, cyclohexyl butyrate, pentanoic acid cyclohexyl ester, caproic acid cyclohexyl, second
At least one of sour o-tert-butyl cyclohexyl, cyclohexyl acrylate, benzoate ester, cyclohexyl methacrylate.
Further, the cyclic structure is caged scaffold；The esters solvent with cyclic structure is selected from acrylic acid
At least one of isobornyl thiocyanoacetate, isobornyl methacrylate, isobornyl acetate, isobutyric acid Isobornyl.
Further, the smooth diffusion particle accounts for 0.1wt%~10wt% of ink system.
Further, the smooth diffusion particle is organic smooth diffusion particle；Organic smooth diffusion particle is selected from poly- methyl
Methyl acrylate, polycarbonate, polystyrene, polyvinyl chloride, polyacrylonitrile, polyamide, polyethylene, polyurethane, type siloxane
At least one of polymer particle；The partial size of the smooth diffusion particle is less than 300nm.
It further, also include the surfactant of 1wt%~10wt% in the quantum dot ink.
Further, the mass ratio of the surfactant and the smooth diffusion particle is (0.01~3): 1.
According to further aspect of the application, a kind of quantum stippling film is provided, the quantum stippling film is by above-mentioned quantum
Point ink printed preparation.
The utility model has the advantages that the quantum dot ink of the application includes at least one esters solvent with cyclic structure and at least one
Kind of aromatic solvent, the mass ratio of above two solvent is in 1:(0.7~9) in range when, light diffusion particle can be effectively improved and existed
Dispersion stabilization in ink system.Esters solvent is different from the boiling point of aromatic solvent, in inkjet printing, ink droplet drying
In the process, the ester of low boiling point can preferential volatilization, and the high ester of boiling point volatilizees after the meeting, can be with to realize the gradient volatilization of solvent
Effectively inhibit the phenomenon that the quantum dot in ink droplet is easy to reduce adverse effect caused by coffee ring effect to marginal deposit.It utilizes
The ink carries out process smoothness when inkjet printing, not blocking sprayer, and obtained quantum stippling film planarization is good, and film forming is uniform, out light
It is high-efficient.
Specific embodiment
Below in conjunction with the application embodiment, technical solutions in the embodiments of the present application is described in detail.It answers
It is noted that described embodiment is only a part of embodiment of the application, rather than whole embodiments.
This application provides a kind of quantum dot ink, including quantum dot, light diffusion particle and solvent, the solvent includes extremely
A kind of few esters solvent with cyclic structure and at least one aromatic solvent.
In the prior art, quantum dot is often dispersed in the less short chain alkanes of carbon atom number, such as pentane, hexane, still
Viscosity is lower at room temperature for these short chain alkanes, and evaporation rate is fast, and when carrying out inkjet printing, ink droplet rate of drying is too fast,
It is easy to cause spray nozzle clogging.In addition, when preparing quantum stippling film, high concentration more demanding to the concentration of quantum dot in ink
Quantum dot be often not easy stable dispersion in short chain alkanes solvent.It should be noted that light diffusion particle is in above-mentioned short chain
Dispersibility in alkane is same poor, is easy to happen coagulation, so that the quantum dot film surface out-of-flatness obtained after printing, film forming
Property it is poor, may also result in when serious printer nozzle blocking.
Since in esters solvent compound, compared with common group, the steric hindrance of cyclic structure is bigger, so that ester
The polarity of class solvent is very weak, the inventors of the present application found that the quantum dot of high concentration such as 10wt%~45wt% and
Light diffusion particle is able to maintain good dispersion stabilization with arene in the mixed solvent in the esters with cyclic structure,
The poly- phenomenon that also do not occur reuniting or sink is placed for a long time.In addition, the addition of surfactant, facilitates quantum dot ink satisfaction
The parameter requests such as viscosity needed for inkjet printing, surface tension.When carrying out inkjet printing using the ink, due to quantum dot and light
Diffusion particle is not easy to reunite, so that print procedure is smooth, nonchoking nozzle, obtained quantum stippling film planarization is good,
Film forming is uniform, emitting brightness with higher.
Inventors have found that above-mentioned in the mixed solvent, when the mass ratio of esters solvent and aromatic solvent is less than 1:0.7 or big
When 1:9, after light diffusion particle is added in ink, system is not clear state, the bad dispersibility of light diffusion particle.When two
Person's mass ratio be 1:(0.7~9) when, light diffusion particle can the uniform and stable dispersion in ink system, system clear, and
Coagulation phenomenon will not be occurred by being long placed in, and so as to avoid the adverse effect caused by printing of light diffusion particle bad dispersibility, be facilitated
Improve print procedure smoothness.
In one preferred embodiment, the mass ratio of esters solvent and aromatic solvent is 1:0.7,1:1,1:2,1:
3、1:4、1:5、1:6、1:7、1:8、1:9。
Quantum dot can be selected from IIB-VIA compounds of group, IIIA-VA compounds of group, IB-IIIA-VIA compounds of group and calcium
At least one of titanium ore.Specifically can for CdSe, CdTe, ZnS, ZnSe, ZnTe, ZnO, HgS, HgSe, HgTe, MgSe,
MgS、CdSeS、CdSeTe、CdSTe、ZnSeS、ZnSeTe、ZnSTe、HgSeS、HgSeTe、HgSTe、CdZnS、CdZnSe、
CdZnTe、CdHgS、CdHgSe、CdHgTe、HgZnS、HgZnSe、HgZnTe、MgZnSe、MgZnS、HgZnTeS、CdZnSeS、
CdZnSeTe、CdZnSTe、CdHgSeS、CdHgSeTe、CdHgSTe、HgZnSeS、HgZnSeTe、HgZnSTe、GaN、GaP、
GaAs、GaSb、AlN、AlP、AlAs、AlSb、InN、InP、InAs、InSb、GaNP、GaNAs、GaNSb、GaPAs、GaPSb、
AlNP、AlNAs、AlNSb、AlPAs、AlPSb、InNP、InNAs、InNSb、InPAs、InPSb、GaAlNP、GaAlNAs、
GaAlNSb、GaAlPAs、GaAlPSb、GaInNP、GaInNAs、GaInNSb、GaInPAs、GaInPSb、InAlNP、
InAlNAs、InAlNSb、InAlPAs、InAlPSb、CsPbX3(X=Cl, Br, I) or CH3NH3PbX3(X=Cl, Br, I) amount
Sub-, but not limited to this.
In one preferred embodiment, esters solvent at least differs 20 DEG C with aromatic solvent boiling point.For example, standard
Under atmospheric pressure, higher boiling is 230~320 DEG C, and low boiling point is 150~220 DEG C.When use the solvent of two kinds of different boilings as amount
When the solvent of son point ink, in inkjet printing, during ink droplet is dry, the solvent meeting preferential volatilization of low boiling point, and boiling point
High solvent volatilizees after the meeting, to realize the gradient volatilization of solvent, is conducive to inhibit the quantum dot in ink droplet to be easy heavy to edge
Long-pending phenomenon reduces adverse effect caused by coffee ring effect, obtains the quantum dot film of even uniform.
In a specific embodiment, cyclic structure is alicyclic structure.Esters solvent containing alicyclic structure includes
But it is not limited to cyclohexyl formate, cyclohexyl acetate, methyl cyclohexanol acetate, cyclohexyl propionate, cyclohexyl butyrate, valeric acid ring
Own ester, caproic acid cyclohexyl, verdox, cyclohexyl acrylate, benzoate ester, methacrylic acid hexamethylene
Ester, butyl cyclohexyl phthalate, dicyclohexyl phthalate, 1- chloroethene butylcyclohexyl carbonic ester, p-methyl benzenesulfonic acid ring
Own ester, to t-butyl cyclohexyl methacrylate, methyl acetate cyclohexyl, acetic acid -3- t-butyl cyclohexyl methacrylate, vertenex, 1-
Ethylacrylic acid cyclohexyl, 2- monoxone cyclohexyl, chloro-carbonic acid are to t-butyl cyclohexyl methacrylate, cyclohexanecarboxylic acid cyclohexyl, 2- methyl-prop
Sour cyclohexyl, 3,3,5- trimethylace tonitric cyclohexyl.
In a specific embodiment, cyclic structure is caged scaffold.Esters solvent containing caged scaffold includes
But be not limited to isobornyl acrylate, isobornyl methacrylate, isobornyl acetate, isobutyric acid Isobornyl etc..
In a specific embodiment, aromatic solvent is selected from naphthalene, naphthane, naphthalane, the halogen such as naphthalene bromide, naphthalene chloride
For naphthalene, nitrobenzene, aminobenzene, the halogeno-benzenes such as chlorobenzene, bromobenzene, dichloro-benzenes, methyl naphthalene and dimethylbenzene, trimethylbenzene, tetramethyl
The benzene-like compounds that the saturated alkyls such as benzene, ethylo benzene, diethylbenzene, propylbenzene, butyl benzene, amylbenzene replace.
In ink system, the addition of light diffusion particle can increase the scattering of light, and then quantum dot film after printing can be improved
Light emission luminance.In a specific embodiment, light diffusion particle accounts for 0.1wt%~10wt% of ink system.Light expands
When the additional amount of shot controls within the above range, it is ensured that its uniform and stable dispersion in system.
Inventors have found that organic smooth diffusion particle is in the ink system of the application compared with inorganic smooth diffusion particle
Dispersion stabilization is much higher, more preferable with the compatibility of esters solvent, and placement will not there is a phenomenon where coagulations for a long time.It is excellent at one
In the embodiment of choosing, light diffusion particle is selected from polymethyl methacrylate, polycarbonate, polystyrene, polyvinyl chloride, poly- third
At least one of alkene nitrile, polyamide, polyethylene, polyurethane, siloxane type polymers particle.
In one preferred embodiment, the partial size of light diffusion particle is less than 300nm.If the partial size of light diffusion particle
It is too big, it would become hard in the ink evenly dispersed, it is most likely that coagulation occurs, printing smoothness will be directly affected, causes nozzle stifled
Plug.When the partial size of light diffusion particle is less than 300nm, particle is smaller, is conducive to evenly dispersed, ink system presentation clear,
So that the smooth progress of print procedure, is conducive to the quantum dot film for obtaining even uniform.
It in a specific embodiment, also include the surfactant of 1wt%~10wt% in quantum dot ink.Table
Face activating agent can be non-ionic, anionic, cationic or amphoteric surfactant.Preferably, surfactant is
It is non-ionic, including but not limited to alkyl phenol polyoxyethylene ether, high-carbon fatty alcohol polyoxyethylene ether, polyoxyethylene carboxylate,
Fatty acid methyl ester ethoxylate, polyoxyethylated ionic surfactant, loses the ethylene oxide adduct of polypropylene glycol
Water sorbitol ester, sucrose fatty ester, alkylolamides type surfactant, non-ion fluorin carbon surface active agent, polyoxyethylene-
At least one of poiyoxypropylene copolymer.
The viscosity and surface tension of ink system is not only adjusted in the use of above-mentioned surfactant, makes it have preferable
Levelability, to meet the requirement of inkjet printing, additionally it is possible to effectively facilitate dispersion stabilization of the quantum dot in ink system, in turn
Raising is printed as film property, obtains the quantum dot film of even uniform.
In a specific embodiment, the mass ratio of surfactant and light diffusion particle is (0.01~3): 1.It is excellent
Selection of land, mass ratio 0.01:1,0.05:1,0.1:1,0.5:1,1:1,1.5:1,2:1,2.5:1,3:1.
In the application one typical embodiment, a kind of quantum stippling film is disclosed, is passed through by above-mentioned quantum dot ink
Inkjet printing preparation.Ink is improved using the mixed solvent and surfactant of arene and the esters with cyclic structure
The dispersion stabilization of quantum dot and light diffusion particle, and make ink that there is viscosity appropriate and surface tension.Carry out ink-jet
Process is smooth when printing, and nonchoking nozzle, obtained quantum stippling film planarization is good, and film forming uniformly, inhale by blue light with higher
Yield and emitting brightness.
Hereinafter, embodiment is described in more detail referring to embodiment.However, they are exemplary implementation of the invention
Mode, and the invention is not limited thereto.
Embodiment 1
The present embodiment provides a kind of quantum dot inks, comprising: the feux rouges CdSe/ZnS quantum dot of 40wt%, the second of 30wt%
Sour cyclohexyl (boiling point is 173.5 DEG C), the naphthane (boiling point is 207.2 DEG C) of 24wt%, the polymethyl methacrylate of 2wt%
The Aceonon 300 MO of particle and 4wt%.
Above-mentioned ink, which can be placed, still keeps stable for 150 days, is not in reunion or deposited phenomenon.Utilize above-mentioned quantum dot ink
Water carries out inkjet printing, and process is smooth, and film forming uniformly, obtains smooth quantum stippling film.
The luminescent properties of the quantum stippling film are tested, the initial emitting brightness of used blue light backlight
1000cd/m2, the blue light absorption rate of quantum stippling film, emitting brightness, outer quantum yield (EQE) the results are shown in Table 1.
Embodiment 2
The present embodiment provides a kind of quantum dot inks, comprising: the feux rouges InP/ZnS quantum dot of 35.5wt%, 20wt%'s
Methyl cyclohexanol acetate (boiling point is 182 DEG C), the dimethylbenzene (boiling point is 140 DEG C) of 40wt%, the polymethylacrylic acid of 2.5wt%
The polyoxyethylene cetyl ether of methyl esters particle and 2wt%.
Above-mentioned ink, which can be placed, still keeps stable for 150 days, is not in reunion or deposited phenomenon.Utilize above-mentioned quantum dot ink
Water carries out inkjet printing, and process is smooth, and film forming uniformly, obtains smooth quantum stippling film.
The luminescent properties of the quantum stippling film are tested, the initial emitting brightness of used blue light backlight
1000cd/m2, the blue light absorption rate of quantum stippling film, emitting brightness, outer quantum yield (EQE) the results are shown in Table 1.
Embodiment 3
The present embodiment provides a kind of quantum dot inks, comprising: the green light CdSeS quantum dot of 30wt%, the propylene of 25wt%
Sour cyclohexyl (boiling point is 184 DEG C), the methyl naphthalene (boiling point is 245 DEG C) of 30wt%, the polycarbonate particle and 9wt% of 6wt%
Polyoxyl 40 stearate.
Above-mentioned ink, which can be placed, still keeps stable for 150 days, is not in reunion or deposited phenomenon.Utilize above-mentioned quantum dot ink
Water carries out inkjet printing, and process is smooth, and film forming uniformly, obtains smooth quantum stippling film.
The luminescent properties of the quantum stippling film are tested, the initial emitting brightness of used blue light backlight
1000cd/m2, the blue light absorption rate of quantum stippling film, emitting brightness, outer quantum yield (EQE) the results are shown in Table 1.
Embodiment 4
The present embodiment provides a kind of quantum dot inks, comprising: the green light InP quantum dot of 28wt%, the methyl-prop of 15wt%
Olefin(e) acid cyclohexyl (boiling point be 210 DEG C), the trimethylbenzene (boiling point is 164.7 DEG C) of 45wt%, the polycarbonate particle of 4wt% and
The polyoxyethylene 20 sorbitan monostearate of 8wt%.
Above-mentioned ink, which can be placed, still keeps stable for 150 days, is not in reunion or deposited phenomenon.Utilize above-mentioned quantum dot ink
Water carries out inkjet printing, and process is smooth, and film forming uniformly, obtains smooth quantum stippling film.
The luminescent properties of the quantum stippling film are tested, the initial emitting brightness of used blue light backlight
1000cd/m2, the blue light absorption rate of quantum stippling film, emitting brightness, outer quantum yield (EQE) the results are shown in Table 1.
In embodiment 1 to embodiment 4, the printing of quantum dot ink uses FUJIFILM DMP-3000 ink-jet printer.
Table 1
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | |
| Blue light absorption rate/% | 95 | 78 | 90 | 75 |
| Emitting brightness/cd/m2 | 1400 | 1176 | 4930 | 4892 |
| EQE/% | 40.8 | 30 | 34.1 | 33.9 |
As shown in Table 1, the color film that in the application prepared by quantum dot ink is up to 95% to the absorptivity of blue light, emitting brightness
Up to 4930cd/m2, external quantum efficiency EQE is up to 40.8%, shows good optical property.
Although inventor has done more detailed elaboration to the technical solution of the application and has enumerated, it should be understood that for
For those skilled in the art, above-described embodiment is modified and/or the flexible or equivalent alternative solution of use is obvious
, cannot all be detached from the essence of the application spirit, the term occurred in the application be used for elaboration to technical scheme and
Understand, the limitation to the application can not be constituted.
Claims (10)
1. a kind of quantum dot ink, including quantum dot, light diffusion particle and solvent, which is characterized in that the solvent includes at least
A kind of esters solvent with cyclic structure and at least one aromatic solvent.
2. quantum dot ink according to claim 1, which is characterized in that the quality of the esters solvent and aromatic solvent
Than for 1:(0.7~9).
3. quantum dot ink according to claim 1, which is characterized in that the boiling point of the esters solvent and aromatic solvent
At least differ 20 DEG C；
Preferably, normal atmosphere is depressed, and the boiling point of the esters solvent is 150~320 DEG C, and the boiling point of the aromatic solvent is
130~320 DEG C.
4. quantum dot ink according to any one of claims 1 to 3, which is characterized in that the cyclic structure is alicyclic ring knot
Structure；
The esters solvent with cyclic structure is selected from cyclohexyl formate, cyclohexyl acetate, methyl cyclohexanol acetate, propionic acid ring
Own ester, cyclohexyl butyrate, pentanoic acid cyclohexyl ester, caproic acid cyclohexyl, verdox, cyclohexyl acrylate, benzoic acid
At least one of cyclohexyl, cyclohexyl methacrylate.
5. quantum dot ink according to any one of claims 1 to 3, which is characterized in that the cyclic structure is bridged ring knot
Structure；
The esters solvent with cyclic structure is selected from isobornyl acrylate, isobornyl methacrylate, the different ice of acetic acid
At least one of piece ester, isobutyric acid Isobornyl.
6. quantum dot ink according to claim 1, which is characterized in that the smooth diffusion particle accounts for ink system
0.1wt%~10wt%.
7. quantum dot ink according to claim 1, which is characterized in that the smooth diffusion particle is that organic light spreads grain
Son；
Organic smooth diffusion particle is selected from polymethyl methacrylate, polycarbonate, polystyrene, polyvinyl chloride, polypropylene
At least one of nitrile, polyamide, polyethylene, polyurethane, siloxane type polymers particle；
The partial size of the smooth diffusion particle is less than 300nm.
8. quantum dot ink according to claim 1, which is characterized in that in the quantum dot ink also comprising 1wt%~
The surfactant of 10wt%.
9. according to claim 1 and quantum dot ink described in 8, which is characterized in that the surfactant and the light are spread
The mass ratio of particle is (0.01~3): 1.
10. a kind of quantum stippling film, which is characterized in that the quantum stippling film is by any quantum dot of claim 1~9
Ink printed preparation.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110172274A (en) * | 2019-05-29 | 2019-08-27 | 苏州星烁纳米科技有限公司 | Quantum dot ink and electroluminescent device |
| CN111808601A (en) * | 2020-06-05 | 2020-10-23 | 苏州星烁纳米科技有限公司 | Quantum dot composition and display device |
| CN112099266A (en) * | 2020-09-18 | 2020-12-18 | 苏州星烁纳米科技有限公司 | Color film, preparation method thereof, processing device and display device |
| CN113777676A (en) * | 2020-06-05 | 2021-12-10 | 华宏新技股份有限公司 | Multifunctional diffusion film and diffusion sheet comprising same |
| WO2022063340A1 (en) * | 2020-09-22 | 2022-03-31 | 苏州星烁纳米科技有限公司 | Quantum dot ink, color filter film, display device, and color filter film preparation method |
| CN115991887A (en) * | 2021-10-19 | 2023-04-21 | 北京航空航天大学合肥创新研究院(北京航空航天大学合肥研究生院) | Light conversion film, preparation method thereof and display device |
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| CN111808601A (en) * | 2020-06-05 | 2020-10-23 | 苏州星烁纳米科技有限公司 | Quantum dot composition and display device |
| CN113777676A (en) * | 2020-06-05 | 2021-12-10 | 华宏新技股份有限公司 | Multifunctional diffusion film and diffusion sheet comprising same |
| CN112099266A (en) * | 2020-09-18 | 2020-12-18 | 苏州星烁纳米科技有限公司 | Color film, preparation method thereof, processing device and display device |
| CN112099266B (en) * | 2020-09-18 | 2023-01-17 | 苏州星烁纳米科技有限公司 | Color film, preparation method thereof, processing device and display device |
| WO2022063340A1 (en) * | 2020-09-22 | 2022-03-31 | 苏州星烁纳米科技有限公司 | Quantum dot ink, color filter film, display device, and color filter film preparation method |
| CN115991887A (en) * | 2021-10-19 | 2023-04-21 | 北京航空航天大学合肥创新研究院(北京航空航天大学合肥研究生院) | Light conversion film, preparation method thereof and display device |
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