CN109739069B - Photocuring material composition, color film substrate, display panel and display device - Google Patents
Photocuring material composition, color film substrate, display panel and display device Download PDFInfo
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Abstract
The invention relates to the technical field of liquid crystal display, in particular to a photocuring material composition, a color film substrate, a display panel and a display device. The light-cured material composition comprises 1-20 wt% of quantum dot material based on the total weight of the light-cured material composition.
Description
Technical Field
The invention relates to the technical field of liquid crystal display, in particular to a photocuring material composition, a color film substrate, a display panel and a display device.
Background
With the progress of science and technology, terminal display is ubiquitous, and particularly with the combination of artificial intelligence and terminal display, people's lives will not be displayed any more and more. It is known that these terminal displays are electromagnetic radiation, which has a certain effect on human health. Therefore, health display is a major issue to be solved at present.
In recent years, the display technology is rapidly developed, and high resolution, high color purity, high color gamut, high contrast, etc. are required from LCD to OLED to QD display, so as to have vivid display effect. For improving the display color gamut and the color purity, the most direct method is to improve the color gamut of the color film and increase the concentration of the color photoresist pigment liquid. However, in the current photolithography technology, the increase of the concentration of the pigment liquid is limited, and the color gamut requirement which is increasing day by day cannot be satisfied. Although the OLED display can emit a single spectrum, the problem of insufficient alignment precision exists in large size, the process difficulty is high, and the yield is low; if a white light and color film mode is adopted, the light emitted by the color film is required to be matched with the backlight. Therefore, how to make the light purity of the color filter higher and the color gamut wider becomes a problem to be solved urgently at present.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a photocuring material composition, a color film substrate, a display panel and a display device.
According to one aspect of the present invention, there is provided a photocurable material composition including 1% to 20% by weight of a quantum dot material, based on the total weight of the photocurable material composition.
According to one embodiment of the present invention, the following components are included in weight percent, based on the total weight of the photocurable material composition:
the photocurable material composition according to the present invention may be a red photocurable material composition or a green photocurable material composition.
The invention provides a photocuring material composition, wherein a red color film and a green color film formed by the composition can narrow the transmitted spectrum peak width; meanwhile, the far infrared rays emitted by the material are beneficial to human health.
According to an embodiment of the present invention, the quantum dot material is selected from any one of zinc sulfide, zinc oxide, gallium nitride, zinc selenide, cadmium sulfide, gallium selenide, cadmium selenide, zinc telluride, cadmium telluride, gallium arsenide, indium phosphide and lead telluride.
According to an embodiment of the present invention, the quantum dot material is present in an amount of 3 to 10% by weight, based on the total weight of the photocurable material composition.
According to one embodiment of the invention, the film-forming resin is an alkali-soluble resin containing carboxylic acid groups, obtained by copolymerization of an unsaturated acid or an unsaturated anhydride with styrene or a methacrylate having various specific functional groups (e.g., hydroxyl, epoxy, cyclic, etc.).
According to an embodiment of the present invention, the unsaturated compound is selected from one or more of unsaturated multifunctional monomers, oligomers having unsaturated bonds.
According to one embodiment of the present invention, the unsaturated multifunctional monomer is selected from 1, 6-hexanediol diacrylate, dipropylene glycol diacrylate, tripropylene glycol diacrylate, trimethylolpropane triacrylate, ethoxylated trimethylolpropane triacrylate, pentaerythritol tetraacrylate, dipentaerythritol pentaacrylate or dipentaerythritol hexaacrylate; the oligomer having an unsaturated bond is selected from epoxy acrylate, urethane acrylate or polyether acrylate.
According to one embodiment of the present invention, the initiator is one or more selected from the group consisting of a diimidazole compound, a benzoin compound, a polynuclear quinone compound, a benzophenone compound, an acetophenone compound, an α -hydroxyketone derivative, an α -aminoketone derivative, a triazine compound, a diazo compound, an oxime ester compound, an iodonium salt, and a sulfonium salt.
According to one embodiment of the present invention, the coloring material is a red coloring material, a green coloring material, or a yellow coloring material.
The yellow pigment is added to the green pigment or the red pigment for toning.
According to one embodiment of the present invention, the auxiliary agent includes one or both of a leveling agent and a coupling agent. The leveling agent can be one or more of Coat-O-Sil 2810, EFKA3777, EFKA2022, HX-3010, HX-3110, HX-3310, HX-3020, HX-3320, BYK310, BYK323, BYK333, BYK358N, BYK06, MFP X50, glide432 and the like. The coupling agent can be long-chain alkyl trimethoxy silane, vinyl triethoxy silane, vinyl trimethoxy silane, gamma-chloropropyl triethoxy silane, bis- (gamma-triethoxysilylpropyl) tetrasulfide, aniline methyl triethoxy silane, N-beta (aminoethyl) -gamma-aminopropyl trimethoxy silane, one or more of N- (beta-aminoethyl) -gamma-aminopropyltriethoxysilane, N-beta (aminoethyl) -gamma-aminopropylmethyldimethoxysilane, gamma- (2, 3-glycidoxy) propyltrimethoxysilane, gamma- (methacryloyloxy) propyltrimethylsilane, gamma-mercaptopropyltrimethoxysilane, and gamma-mercaptopropyltriethoxysilane.
According to one embodiment of the present invention, the solvent is one or more selected from the group consisting of formic acid, acetic acid, chloroform, acetone, methyl ethyl ketone, aliphatic alcohol, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monopropyl ether, ethylene glycol monobutyl ether, diethylene glycol diethyl ether ethyl acetate, methyl ethyl ketone, methyl isobutyl ketone, monomethyl ether glycol ester, γ -butyrolactone, 3-ethyl propionate, butyl carbitol acetate, propylene glycol monomethyl ether acetate, cyclohexane, xylene, and isopropyl alcohol. The solvent is preferably one or more of propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate, cyclohexane, butyl carbitol acetate and gamma-butyrolactone.
According to another aspect of the present invention, there is provided a method for preparing the photocurable material composition as described above, comprising mixing the components to obtain the photocurable material composition.
According to another aspect of the present invention, there is provided a color filter substrate comprising the photocurable material composition as described above.
According to another aspect of the present invention, a preparation method of the color film substrate is provided, which includes spin coating, pre-baking, exposing, developing, and post-baking the photocurable material composition to obtain the color film substrate.
In the invention, the whole process of preparing the color film substrate needs to be carried out at a low temperature, preferably below 180 ℃.
According to another aspect of the present invention, a display panel is provided, which includes the color film substrate as described above.
According to still another aspect of the present invention, there is provided a display device including the display panel as described above.
The invention has the following beneficial effects:
according to the invention, the specific quantum dot material is added into the photocuring material composition, so that the cross spectra between green and red, green and blue in a color film spectrum can be absorbed, and the peak widths of the red and green spectra emitted by penetrating through the color film are narrower, thereby achieving the effects of improving the color gamut and the color purity, and the photocuring material composition is not limited to a blue light backlight source. In addition, the quantum dot material can also have an emission spectrum in a far infrared region when being excited, and is beneficial to human health.
Drawings
Fig. 1 is a chromatogram of the color filter substrate prepared in example 1.
Fig. 2 is a chromatogram of the color filter substrate prepared in example 2.
Fig. 3 is a chromatogram of the color filter substrate prepared in example 3.
Fig. 4 is a chromatogram of a color film substrate prepared in a comparative example.
Detailed Description
The present invention will now be described with reference to the following detailed description, which is to be construed as illustrative only and not limiting in any way.
The invention provides a photocuring material composition, a color film substrate, a display panel and a display device.
According to one aspect of the present invention, there is provided a photocurable material composition including 1% to 20% by weight of a quantum dot material, based on the total weight of the photocurable material composition. According to an embodiment of the present invention, the weight percentage of the quantum dot material may be, for example, 1%, 2%, 2.5%, 3%, 4%, 5%, 5.5%, 6%, 7%, 7.5%, 8%, 9%, 10%, 11%, 11.5%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%, etc.
According to one embodiment of the present invention, the following components are included in weight percent, based on the total weight of the photocurable material composition:
according to an embodiment of the present invention, the weight percentage of the film-forming resin may be, for example, 2%, 3%, 3.5%, 5%, 6%, 8%, 8.5%, 10%, 11%, 12%, 14%, 15%, or the like. The weight percentage of the unsaturated compound may be, for example, 2%, 3%, 4%, 4.5%, 6%, 7%, 8%, 9%, 10%, 10.5%, 12%, 14%, 15%, etc. The initiator may be, for example, 0.1%, 0.12%, 0.15%, 0.18%, 0.2%, 0.24%, 0.3%, 0.35%, 0.4%, 0.5%, 0.6%, 0.7%, 0.75%, 0.8%, 0.9%, 1%, etc., the quantum dot material may be, for example, 1%, 2%, 2.5%, 3%, 3.5%, 4%, 5%, 5.5%, 6%, 7%, 7.5%, 8%, 9%, 10%, 11%, 11.5%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%, etc., the coloring material may be, for example, 10%, 11%, 11.5%, 12%, 13%, 15%, 18%, 20%, 22%, 25%, 30%, 33%, 36%, 40%, etc., and the auxiliary may be, for example, 0.01%, 0.02%, 0.03%, 0.06%, 0.1%, 0.15%, 0.2%, 0.24%, 0.5%, 0.6%, 0.7%, 0.75%, 0.8%, 0.9%, 1%, etc., and the auxiliary may be, etc., and the weight percentage of the auxiliary may be, for example, 1%, and the weight percentage of the weight of the coloring material may be, and the like, 0.3%, 0.4%, 0.5%, etc., and the weight percentage of the solvent may be, for example, 40%, 42%, 45%, 47%, 49%, 52%, 55%, 60%, 63%, 67%, 70%, 75%, 80%, etc.
The photocurable material composition according to the present invention may be a red photocurable material composition or a green photocurable material composition.
The invention provides a photocuring material composition, wherein a red color film and a green color film formed by the composition can narrow the transmitted spectrum peak width; meanwhile, the far infrared rays emitted by the material are beneficial to human health.
"quantum dot materials" are zero-dimensional nano-semiconductor materials. The size of each of the three dimensions of the quantum dot is not more than twice the exciton Bohr radius of the corresponding semiconductor material, and the performance of the quantum dot is generally influenced by quantum confinement effect, surface effect and doping. Quantum dots have novel electronic and optical properties and can be used in many important fields such as electronics, optoelectronics, photovoltaics, biomedical, and the like.
According to an embodiment of the present invention, the quantum dot material is selected from any one of zinc sulfide, zinc oxide, gallium nitride, zinc selenide, cadmium sulfide, gallium selenide, cadmium selenide, zinc telluride, cadmium telluride, gallium arsenide, indium phosphide and lead telluride.
The quantum dot material has the transmittance of less than 40 percent in the visible light range of 450 nm-500 nm and the transmittance of more than 80 percent in the visible light range of more than or equal to 500nm by ligand synthesis. According to the quantum dot material disclosed by the invention, the green peak width can be narrowed in the green light curing material composition, so that the color purity is improved; in the red light-curing material composition, light in a red and green mixed color region can be absorbed, thereby making the red color more pure. In addition, the quantum dot material of the invention has an emission spectrum in a far infrared region, and is beneficial to human health when used for a display device.
According to an embodiment of the present invention, the quantum dot material is present in an amount of 3 to 10% by weight, based on the total weight of the photocurable material composition. When the weight percentage of the quantum dot material is less than 1%, the spectrum of the blue/green and red/green mixed region cannot be absorbed, and when the weight percentage of the quantum dot material is more than 20%, the photocurable material composition cannot be cured in a low temperature state.
According to one embodiment of the invention, the film-forming resin is an alkali-soluble resin containing carboxylic acid groups, obtained by copolymerization of an unsaturated acid or an unsaturated anhydride with styrene or a methacrylate having various specific functional groups (e.g., hydroxyl, epoxy, cyclic, etc.).
According to an embodiment of the present invention, the unsaturated compound is selected from one or more of unsaturated multifunctional monomers, oligomers having unsaturated bonds.
According to one embodiment of the present invention, the unsaturated multifunctional monomer is selected from 1, 6-hexanediol diacrylate, dipropylene glycol diacrylate, tripropylene glycol diacrylate, trimethylolpropane triacrylate (TMPTA), ethoxylated trimethylolpropane triacrylate, pentaerythritol tetraacrylate, dipentaerythritol pentaacrylate or dipentaerythritol hexaacrylate; the oligomer having an unsaturated bond is selected from epoxy acrylate, urethane acrylate or polyether acrylate.
According to one embodiment of the invention, the initiator is selected from one or more of diimidazole-based compounds (e.g., HABI), benzoin-based compounds (e.g., DMPA), polynuclear quinone-based compounds (e.g., ITX/CTX/CPTX/DETX), benzophenone-based compounds (e.g., BP/MBP/MK), acetophenone-based compounds (e.g., DEAP), α -hydroxyketone derivatives (e.g., Darocur1173, Irgacure184, Darocur2959), α -aminoketone derivatives (e.g., Irgacure907, Irgacure369), triazine-based compounds (e.g., BMT), diazo-based compounds (e.g., AIBN), oxime ester-based compounds (e.g., OXE01, OXE02), iodonium salts, and sulfonium salts (e.g., UV 169976).
According to one embodiment of the present invention, the coloring material is a red coloring material, a green coloring material, or a yellow coloring material.
The coloring materials described in the present invention are all organic pigments. The red coloring material is mainly perylene, quinacridone and pyrrolopyrrole, and specifically may be one or more of p.r.122, p.r.123, p.r.177, p.r.179, p.r.190, p.r.202, p.r.210, p.r.224, p.r.254, p.r.255, p.r.264, p.r.270, p.r.272 and p.r.122. The green coloring material is mainly phthalocyanine series, and specifically, it may be one or more of p.g.36, p.g.58, p.g.7, etc. The yellow pigment may be any one or more of known azo type, azo condensation type and heterocyclic type pigments, specifically, p.y.1, p.y.12, p.y.3, p.y.13, p.y.14, p.y.83, p.y.93, p.y.94, p.y.95, p.y.109, p.y.126, p.y.127, p.y.138, p.y.139, p.y.147, p.y.150, p.y.174, p.y.180, etc.
The yellow pigment is added to the green pigment or the red pigment for toning.
According to one embodiment of the present invention, the auxiliary agent includes one or both of a leveling agent and a coupling agent. The leveling agent can be one or more of Coat-O-Sil 2810, EFKA3777, EFKA2022, HX-3010, HX-3110, HX-3310, HX-3020, HX-3320, BYK310, BYK323, BYK333, BYK358N, BYK06, MFP X50, glide432 and the like. The coupling agent can be long-chain alkyl trimethoxy silane, vinyl triethoxy silane, vinyl trimethoxy silane, gamma-chloropropyl triethoxy silane, bis- (gamma-triethoxysilylpropyl) tetrasulfide, aniline methyl triethoxy silane, N-beta (aminoethyl) -gamma-aminopropyl trimethoxy silane, one or more of N- (beta-aminoethyl) -gamma-aminopropyltriethoxysilane, N-beta (aminoethyl) -gamma-aminopropylmethyldimethoxysilane, gamma- (2, 3-glycidoxy) propyltrimethoxysilane, gamma- (methacryloyloxy) propyltrimethylsilane, gamma-mercaptopropyltrimethoxysilane and gamma-mercaptopropyltriethoxysilane.
According to one embodiment of the present invention, the solvent is one or more selected from the group consisting of formic acid, acetic acid, chloroform, acetone, methyl ethyl ketone, aliphatic alcohol, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monopropyl ether, ethylene glycol monobutyl ether, diethylene glycol diethyl ether ethyl acetate, methyl ethyl ketone, methyl isobutyl ketone, monomethyl ether glycol ester, γ -butyrolactone, 3-ethyl propionate, butyl carbitol acetate, propylene glycol monomethyl ether acetate, cyclohexane, xylene, and isopropyl alcohol. The solvent is preferably one or more of propylene glycol monomethyl ether, Propylene Glycol Monomethyl Ether Acetate (PGMEA), cyclohexane, butyl carbitol acetate, and γ -butyrolactone.
According to another aspect of the present invention, there is provided a method for preparing the photocurable material composition as described above, comprising mixing the components to obtain the photocurable material composition.
According to another aspect of the present invention, there is provided a color filter substrate including the photocurable material composition as described above.
According to another aspect of the present invention, a method for preparing the color film substrate is provided, which is characterized by including spin coating, pre-baking, exposing, developing, and post-baking the photocurable material composition to obtain the color film substrate.
According to one embodiment of the present invention, the photocurable material composition is subjected to spin coating at 300rpm for 10s, pre-baking at 100 ℃ for 60s, exposure at 80mJ, developing with 0.05% KOH, and post-baking at 170 ℃ for 25min to form pixels on a glass substrate in the order of R-G-B.
In the invention, the whole process of preparing the color film substrate needs to be carried out at a low temperature, preferably below 180 ℃.
According to another aspect of the present invention, a display panel is provided, which includes the color film substrate as described above.
According to still another aspect of the present invention, there is provided a display device including the display panel as described above.
The film-forming resin is not particularly limited in its kind as long as it is soluble in the solvent of the present invention, can form a film, and is soluble in an alkaline developer.
Examples of the film-forming resin include: a carboxyl group-containing monomer, a copolymer of the monomer and another monomer copolymerizable therewith, and the like.
Examples of the carboxyl group-containing monomer include unsaturated carboxylic acids such as unsaturated monocarboxylic acids, unsaturated dicarboxylic acids, and unsaturated polycarboxylic acids having one or more carboxyl groups in the molecule, such as unsaturated tricarboxylic acids.
Examples of the unsaturated monocarboxylic acid include acrylic acid, methacrylic acid, crotonic acid, α -chloroacrylic acid, cinnamic acid, and the like.
Examples of the unsaturated dicarboxylic acid include maleic acid, fumaric acid, itaconic acid, citraconic acid, and mesaconic acid.
The unsaturated polycarboxylic acid may be an acid anhydride, and specific examples thereof include maleic anhydride, itaconic anhydride, and citraconic anhydride. The unsaturated polycarboxylic acid may be a mono (2-methacryloxyalkyl) ester thereof, and examples thereof include mono (2-acryloyloxyethyl) succinate, mono (2-methacryloyloxyethyl) succinate, mono (2-acryloyloxyethyl) phthalate, and mono (2-methacryloyloxyethyl) phthalate. The unsaturated polycarboxylic acid may be a mono (meth) acrylate of a dicarboxylic polymer at both ends thereof, and examples thereof include ω -carboxy polycaprolactone monoacrylate, ω -carboxy polycaprolactone monomethacrylate and the like.
The carboxyl group-containing monomers may be used alone or in combination of two or more.
Examples of the other monomer copolymerizable with the carboxyl group-containing monomer include: aromatic vinyl compounds such as styrene, α -methylstyrene, o-vinyltoluene, m-vinyltoluene, p-chlorostyrene, o-methoxystyrene, m-methoxystyrene, p-methoxystyrene, o-vinylbenzyl methyl ether, m-vinylbenzyl methyl ether, p-vinylbenzyl methyl ether, o-vinylbenzyl glycidyl ether, m-vinylbenzyl glycidyl ether, p-vinylbenzyl glycidyl ether, indene and the like; methyl acrylate, methyl methacrylate, ethyl acrylate, ethyl methacrylate, n-propyl acrylate, n-propyl methacrylate, isopropyl acrylate, isopropyl methacrylate, n-butyl acrylate, n-butyl methacrylate, isobutyl acrylate, isobutyl methacrylate, sec-butyl acrylate, sec-butyl methacrylate, tert-butyl acrylate, tert-butyl methacrylate, 2-hydroxyethyl acrylate, 2-hydroxyethyl methacrylate, 2-hydroxypropyl acrylate, 2-hydroxypropyl methacrylate, 3-hydroxypropyl acrylate, 3-hydroxypropyl methacrylate, 2-hydroxybutyl acrylate, 2-hydroxybutyl methacrylate, 3-hydroxybutyl acrylate, 3-hydroxybutyl methacrylate, 4-hydroxybutyl acrylate, 4-hydroxybutyl methacrylate, allyl acrylate, isopropyl methacrylate, n-butyl acrylate, isobutyl methacrylate, butyl acrylate, allyl methacrylate, benzyl acrylate, benzyl methacrylate, cyclohexyl acrylate, cyclohexyl methacrylate, phenyl acrylate, phenyl methacrylate, 2-methoxyethyl acrylate, 2-methoxyethyl methacrylate, 2-phenoxyethyl acrylate, 2-phenoxyethyl methacrylate, methoxydiglycol acrylate, methoxydiglycol methacrylate, methoxytriglycol acrylate, methoxytriglycol methacrylate, methoxypropylene glycol acrylate, methoxypropylene glycol methacrylate, isobornyl acrylate, isobornyl methacrylate, dicyclopentadienyl acrylate, dicyclopentadienyl methacrylate, 2-hydroxy-3-phenoxypropyl acrylate, cyclohexyl methacrylate, phenyl acrylate, phenyl methacrylate, 2-methoxyethyl acrylate, 2-methoxyethyl methacrylate, 2-phenoxyethyl methacrylate, 2-methoxy diglycol acrylate, isobornyl methacrylate, dicyclopentadienyl acrylate, dicyclopentadienyl methacrylate, 2-hydroxy-3-phenoxypropyl acrylate, and benzyl methacrylate, Unsaturated carboxylic acid esters such as 2-hydroxy-3-phenoxypropyl methacrylate, glycerol monoacrylate and glycerol monomethacrylate; aminoalkyl esters of unsaturated carboxylic acids such as 2-aminoethyl acrylate, 2-aminoethyl methacrylate, 2-dimethylaminoethyl acrylate, 2-dimethylaminoethyl methacrylate, 2-aminopropyl acrylate, 2-aminopropyl methacrylate, 2-dimethylaminopropyl acrylate, 2-dimethylaminopropyl methacrylate, 3-aminopropyl acrylate, 3-aminopropyl methacrylate, 3-dimethylaminopropyl acrylate and 3-dimethylaminopropyl methacrylate; unsaturated carboxylic acid glycidyl esters such as glycidyl acrylate and glycidyl methacrylate; vinyl carboxylates such as vinyl acetate, vinyl propionate, vinyl butyrate, and vinyl benzoate; unsaturated ethers such as vinyl methyl ether, vinyl ethyl ether and allyl glycidyl ether; acrylonitrile compounds such as acrylonitrile, methacrylonitrile, α -chloroacrylonitrile, and dicyanovinylene; unsaturated amides such as acrylamide, methacrylamide, α -chloroacrylamide, N-2-hydroxyethylacrylamide, and N-2-hydroxyethylmethacrylamide; unsaturated imides such as maleimide, N-phenylmaleimide and N-cyclohexylmaleimide; aliphatic conjugated dienes such as 1, 3-butadiene, isoprene and chloroprene; and macromonomers having a monoacryloyl group or a monomethacryloyl group at the terminal of a polymer molecular chain of polystyrene, polymethyl acrylate, polymethyl methacrylate, poly-n-butyl acrylate, poly-n-butyl methacrylate, or polysiloxane. These monomers may be used alone or in combination of two or more.
Examples of the film-forming resin include: a (meth) acrylic acid/methyl (meth) acrylate copolymer, a (meth) acrylic acid/benzyl (meth) acrylate copolymer, a (meth) acrylic acid/2-hydroxyethyl (meth) acrylate/benzyl (meth) acrylate copolymer, a (meth) acrylic acid/methyl (meth) acrylate/polystyrene macromonomer copolymer, a (meth) acrylic acid/methyl (meth) acrylate/polymethyl (meth) acrylate macromonomer copolymer, a (meth) acrylic acid/benzyl (meth) acrylate/polystyrene macromonomer copolymer, a (meth) acrylic acid/benzyl (meth) acrylate/polymethyl (meth) acrylate macromonomer copolymer, a (meth) acrylic acid/2-hydroxyethyl (meth) acrylate/benzyl (meth) acrylate/polystyrene macromonomer copolymer, a copolymer of acrylic acid/benzyl (meth) acrylate, a copolymer of acrylic acid/styrene macromonomer, a copolymer of acrylic acid/styrene, a copolymer of acrylic acid/acrylic acid, a copolymer of acrylic acid, a copolymer, and a copolymer, A (meth) acrylic acid/2-hydroxyethyl (meth) acrylate/benzyl (meth) acrylate/polymethyl (meth) acrylate macromonomer copolymer, a (meth) acrylic acid/styrene/benzyl (meth) acrylate/N-phenylmaleimide copolymer, a (meth) acrylic acid/mono (2-acryloyloxy) succinate/styrene/benzyl (meth) acrylate/N-phenylmaleimide copolymer, (meth) acrylic acid/succinic acid mono (2-acryloyloxyethyl) ester/styrene/(meth) acrylic acid allyl ester/N-phenylmaleimide copolymer, (meth) acrylic acid/(meth) acrylic acid benzyl ester/N-phenylmaleimide/styrene/glycerin mono (meth) acrylate copolymer, and the like. Among them, preferred are (meth) acrylic acid/benzyl (meth) acrylate copolymers, (meth) acrylic acid/benzyl (meth) acrylate/styrene copolymers, (meth) acrylic acid/methyl (meth) acrylate copolymers, and (meth) acrylic acid/methyl (meth) acrylate/styrene copolymers.
The film-forming resin is not particularly limited, and the weight average molecular weight thereof in terms of polystyrene is preferably within a range of 3000 to 100000, more preferably 3000 to 50000, and particularly preferably 5000 to 50000.
Therefore, the photocurable material composition, the color film substrate, the display panel and the display device have more optional factors, and different embodiments can be combined according to the claims of the invention. The embodiments of the present invention are merely intended to be a specific description of the present invention and should not be construed as limiting the present invention. The invention will be further described with reference to specific examples.
A, D, B, E in tables 1 and 2 are compositions according to the present invention, A 'and B' are comparative compositions, wherein A, D, A 'is a red light-curable composition, B, E, B' is a green light-curable composition, and C is a blue light-curable composition. The specific substances and weight percentages of the components are shown in tables 1 and 2.
TABLE 1 compositions and amounts of compositions referred to in the present invention
TABLE 2 composition and content of the compositions referred to in the invention
The percentages of the components in tables 1 and 2 are percentages by weight.
The compositions in table 1 and table 2 were prepared by the following methods: and uniformly mixing the corresponding components according to the weight percentages shown in the tables 1 and 2 to obtain the composition.
Each of the compositions in tables 1 and 2 was subjected to spin coating at 300rpm for 10s, pre-baking at 100 ℃ for 60s, exposure at 80mJ, development with 0.05% KOH, and post-baking at 170 ℃ for 25min to form pixels in the order of R-G-B. Chromatograms of examples 1 to 3 and comparative examples are shown in fig. 1 to 4, and the results of fig. 1 to 4 are combined, and color coordinates of pixels are measured by a colorimeter, and color gamut is calculated, and the results are shown in table 3.
TABLE 3 data of experimental results of examples and comparative examples
| Example 1 | Example 2 | Example 3 | Comparative example | |
| R | A | A’ | D | A’ |
| G | B | B | E | B’ |
| B | C | C | C | C |
| Color gamut | 79.50％ | 77.7％ | 82.10％ | 71.27％ |
In table 3, R represents a red light-curable material composition, G represents a green light-curable material composition, and B represents a blue light-curable material composition.
As can be seen from table 3, compared with the comparative example without the quantum dots, the color gamut of the color films of embodiments 1 to 3 with the quantum dots added can be improved by 5 to 15%; and when the composition provided by the invention is adopted in both the red light curing material composition and the green light curing material composition, the color gamut improving effect is more obvious.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. A photocurable material composition, characterized by consisting of, in weight percent, based on the total weight of the photocurable material composition:
the quantum dot material has the transmittance of less than 40% in the visible light range of 450-500 nm, and has the transmittance of more than 80% in the visible light range of more than or equal to 500 nm.
2. The photocurable material composition of claim 1 wherein said quantum dot material is selected from any one of zinc sulfide, zinc oxide, gallium nitride, zinc selenide, cadmium sulfide, gallium selenide, cadmium selenide, zinc telluride, cadmium telluride, gallium arsenide, indium phosphide and lead telluride.
3. The photocurable material composition of claim 1 wherein the quantum dot material is present in an amount of 3 to 10% by weight, based on the total weight of the photocurable material composition.
4. The photocurable material composition of claim 1 wherein the film-forming resin is an alkali-soluble resin containing carboxylic acid groups.
5. The photocurable material composition according to claim 1, wherein the unsaturated compound is one or more selected from the group consisting of unsaturated multifunctional monomers and oligomers having unsaturated bonds.
6. The photocurable material composition according to claim 1, wherein the coloring material is a red coloring material, a green coloring material, or a yellow coloring material.
7. A color filter substrate comprising the photocurable material composition according to any one of claims 1 to 6.
8. A display panel comprising the color filter substrate according to claim 7.
9. A display device characterized by comprising the display panel according to claim 8.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811632301.0A CN109739069B (en) | 2018-12-29 | 2018-12-29 | Photocuring material composition, color film substrate, display panel and display device |
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| KR20210025159A (en) * | 2019-08-26 | 2021-03-09 | 삼성디스플레이 주식회사 | Qantum dot composition, light-emitting device and manufacturing method thereof |
| JP7180798B2 (en) * | 2020-04-24 | 2022-11-30 | Dic株式会社 | Ink composition, cured product, light conversion layer, and color filter |
| CN111844981B (en) * | 2020-07-20 | 2022-05-17 | 宁波东旭成新材料科技有限公司 | Edge self-sealing quantum dot film |
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