CN104808443A - Color resist composition, color filter film, preparation methods of color resist composition and color filter film, and OLED display devices - Google Patents
Color resist composition, color filter film, preparation methods of color resist composition and color filter film, and OLED display devices Download PDFInfo
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- 239000000203 mixture Substances 0.000 title claims abstract description 74
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- 239000000178 monomer Substances 0.000 claims abstract description 37
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 229920005989 resin Polymers 0.000 claims abstract description 22
- 239000000049 pigment Substances 0.000 claims abstract description 21
- 239000011347 resin Substances 0.000 claims abstract description 21
- 239000003795 chemical substances by application Substances 0.000 claims description 22
- 229920002120 photoresistant polymer Polymers 0.000 claims description 22
- 230000000977 initiatory effect Effects 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 21
- 239000012752 auxiliary agent Substances 0.000 claims description 19
- 239000003086 colorant Substances 0.000 claims description 17
- 238000000354 decomposition reaction Methods 0.000 claims description 10
- 150000002432 hydroperoxides Chemical class 0.000 claims description 8
- 241000625836 Ochrolechia Species 0.000 claims description 7
- 125000002252 acyl group Chemical group 0.000 claims description 7
- 125000000864 peroxy group Chemical group O(O*)* 0.000 claims description 7
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 claims description 6
- FRIBMENBGGCKPD-UHFFFAOYSA-N 3-(2,3-dimethoxyphenyl)prop-2-enal Chemical compound COC1=CC=CC(C=CC=O)=C1OC FRIBMENBGGCKPD-UHFFFAOYSA-N 0.000 claims description 5
- 239000004342 Benzoyl peroxide Substances 0.000 claims description 4
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 4
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 4
- BWJUFXUULUEGMA-UHFFFAOYSA-N propan-2-yl propan-2-yloxycarbonyloxy carbonate Chemical compound CC(C)OC(=O)OOC(=O)OC(C)C BWJUFXUULUEGMA-UHFFFAOYSA-N 0.000 claims description 4
- YIVJZNGAASQVEM-UHFFFAOYSA-N Lauroyl peroxide Chemical compound CCCCCCCCCCCC(=O)OOC(=O)CCCCCCCCCCC YIVJZNGAASQVEM-UHFFFAOYSA-N 0.000 claims description 3
- FYLJKQFMQFOLSZ-UHFFFAOYSA-N cyclohexylperoxycyclohexane Chemical group C1CCCCC1OOC1CCCCC1 FYLJKQFMQFOLSZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000126 substance Substances 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract description 2
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- 239000004925 Acrylic resin Substances 0.000 description 14
- 229920000178 Acrylic resin Polymers 0.000 description 14
- 238000011161 development Methods 0.000 description 14
- 238000006116 polymerization reaction Methods 0.000 description 13
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 9
- SSOONFBDIYMPEU-UHFFFAOYSA-N [3-hydroxy-2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propyl] prop-2-enoate Chemical compound OCC(CO)(CO)COCC(CO)(CO)COC(=O)C=C SSOONFBDIYMPEU-UHFFFAOYSA-N 0.000 description 8
- 239000002390 adhesive tape Substances 0.000 description 8
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 8
- 239000002253 acid Substances 0.000 description 7
- 230000008859 change Effects 0.000 description 7
- 239000000975 dye Substances 0.000 description 7
- 238000001259 photo etching Methods 0.000 description 7
- 238000000016 photochemical curing Methods 0.000 description 7
- 239000003513 alkali Substances 0.000 description 6
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 6
- JYRKWXQBMIICBI-UHFFFAOYSA-N (pentan-3-ylideneamino) acetate Chemical compound CCC(CC)=NOC(C)=O JYRKWXQBMIICBI-UHFFFAOYSA-N 0.000 description 4
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 description 4
- KZKXGOJDKFLMNT-UHFFFAOYSA-N C(C1=CC=CC=C1)(=O)ON=C(C(=O)C1=CC=C(C=C1)C=1SC=CC=1)CCCCCC Chemical compound C(C1=CC=CC=C1)(=O)ON=C(C(=O)C1=CC=C(C=C1)C=1SC=CC=1)CCCCCC KZKXGOJDKFLMNT-UHFFFAOYSA-N 0.000 description 4
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- 150000003254 radicals Chemical class 0.000 description 4
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- 239000002202 Polyethylene glycol Substances 0.000 description 3
- 125000004386 diacrylate group Chemical group 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
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- 229920001223 polyethylene glycol Polymers 0.000 description 3
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- OTYYBJNSLLBAGE-UHFFFAOYSA-N CN1C(CCC1)=O.[N] Chemical compound CN1C(CCC1)=O.[N] OTYYBJNSLLBAGE-UHFFFAOYSA-N 0.000 description 2
- JABXMSSGPHGCII-UHFFFAOYSA-N acetic acid;propane-1,2-diol Chemical compound CC(O)=O.CC(O)CO JABXMSSGPHGCII-UHFFFAOYSA-N 0.000 description 2
- -1 aryl groups alkyl ketone Chemical class 0.000 description 2
- ISAOCJYIOMOJEB-UHFFFAOYSA-N benzoin Chemical compound C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 description 2
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- WNJSKZBEWNVKGU-UHFFFAOYSA-N 2,2-dimethoxyethylbenzene Chemical compound COC(OC)CC1=CC=CC=C1 WNJSKZBEWNVKGU-UHFFFAOYSA-N 0.000 description 1
- 244000283207 Indigofera tinctoria Species 0.000 description 1
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- 230000009286 beneficial effect Effects 0.000 description 1
- WURBFLDFSFBTLW-UHFFFAOYSA-N benzil Chemical class C=1C=CC=CC=1C(=O)C(=O)C1=CC=CC=C1 WURBFLDFSFBTLW-UHFFFAOYSA-N 0.000 description 1
- 229960002130 benzoin Drugs 0.000 description 1
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- 239000007822 coupling agent Substances 0.000 description 1
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- 239000003205 fragrance Substances 0.000 description 1
- 235000019382 gum benzoic Nutrition 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000002796 luminescence method Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000001047 purple dye Substances 0.000 description 1
- 239000001054 red pigment Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- YEIGUXGHHKAURB-UHFFFAOYSA-N viridine Natural products O=C1C2=C3CCC(=O)C3=CC=C2C2(C)C(O)C(OC)C(=O)C3=COC1=C23 YEIGUXGHHKAURB-UHFFFAOYSA-N 0.000 description 1
- 239000001052 yellow pigment Substances 0.000 description 1
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- Optical Filters (AREA)
- Materials For Photolithography (AREA)
Abstract
The invention discloses a color resist composition, a color filter film, preparation methods of the color resist composition and the color filter film, an OLED display device, an LCD device and a flexible display device. The color resist composition comprises the following raw materials by weight: 20 to 30 parts of a monomer solid substance, 20 to 30 parts of a resin solid substance, 15 to 20 parts of one or more color pigment liquid solid substances, 4 to 6 parts of an additive solid substance, 5 to 10 parts of a photoinitiator and 0.06 to 3 parts of one or more thermal initiators. The color filter film is made of the color resist composition; each of the OLED display device, the LCD device and the flexible display device comprises the color filter film. According to the composition, the temperature of after-baking operation during preparation of the color filter film can be equal to or lower than 100 DEG C; the color filter film can be applied to the OLED display device, the LCD device and the flexible display device.
Description
Technical field
The present invention relates to field of liquid crystal display, particularly relate to a kind of chromatic photoresist composition, color filter film and preparation method thereof, OLED display, LCD display device and flexible display apparatus.
Background technology
Only add light trigger in existing chromatic photoresist composition, therefore when utilizing existing chromatic photoresist composition to prepare color filter film, rear baking operating temperature is greater than 230 DEG C, just can guarantee that color filter film has good alkali resistance and endurance.
At present, the display packing realizing Full-color OLED comprises: RGB tri-look arrangement luminescence method, white light variegate optical filtering embrane method, blue light and color conversion layer method, for improving the resolution of OLED screen curtain, RGB three primary colors brightness life-span difference is avoided to cause color distortion, white light is generally selected to variegate optical filtering embrane method, but because the tolerable temperature of oled substrate is lower, require that the temperature of color filter film preparation process is less than 100 DEG C; Flexible display apparatus substrate tolerable temperature is also lower, also requires that the temperature of color filter film preparation process is less than 100 DEG C; LCD display device selects dye-type colorama resist when preparing color filter film better than the transmitance and contrast of selecting color type colorama resist, but when selecting dye-type colorama resist, after high temperature, baking operation can make dye-type photoresist decompose the display effect affecting LCD display device.
Therefore, the preparation method of existing light resistance composition and color filter film can not meet the demand of OLED display, LCD display device and flexible display apparatus.
Summary of the invention
The invention provides a kind of chromatic photoresist composition to dry the problem of temperature drift after solving the colorized optical filtering membrane preparation method that exists in prior art; The preparation method dried after providing color filter film low temperature, rear baking temperature drift solves in prior art owing to can not be used for the problem of OLED display, LCD display device and flexible display apparatus, and provide the color filter film obtained according to this preparation method, and comprise the OLED display of this color filter film, flexible display apparatus and LCD display device.
According to an aspect of the present invention, provide a kind of chromatic photoresist composition, said composition comprises with parts by weight: 20 ~ 30 parts of monomer solid contents, 20 ~ 30 parts of resin solid contents, 15 ~ 20 parts of color pigment liquid solid contents, 4 ~ 6 parts of auxiliary agent solid contents, 5 ~ 10 parts of light triggers and 0.06 ~ 3 part of thermal initiator.
Alternatively, according to composition of the present invention, described thermal initiator is the radical initiator of decomposition temperature≤120 DEG C.
Alternatively, according to composition of the present invention, described thermal initiator be selected from following at least one: azo-initiator, organic peroxy class initiating agent, peroxidating two acyl class initiating agent and hydroperoxides.
Alternatively, according to composition of the present invention, described azo-initiator comprises azoisobutyronitrile and ABVN.
Alternatively, according to composition of the present invention, described organic peroxy class initiating agent comprises di-isopropyl peroxydicarbonate and di-cyclohexylperoxy di-carbonate.
Alternatively, according to composition of the present invention, described peroxidating two acyl class initiating agent comprises benzoyl peroxide and lauroyl peroxide.
Alternatively, according to composition of the present invention, described hydroperoxides comprise cumene hydroperoxide and tert-butyl hydroperoxide.
Alternatively, according to composition of the present invention, in described color pigment liquid, at least comprise a kind of dye coloring agent.
Alternatively, according to composition of the present invention, described dye coloring agent comprises cudbear colorant.
According to a further aspect in the invention, provide a kind of preparation method of color filter film, will composition according to the present invention for the preparation of color filter film, wherein, the method comprise front baking operation: 40 DEG C ~ 65 DEG C baking 110 ~ 300 seconds.
Alternatively, preparation in accordance with the present invention, the method comprised rear baking operation: 80 DEG C ~ 180 DEG C bakings 60 ~ 120 minutes.
Alternatively, preparation in accordance with the present invention, in rear baking operation, temperature is 80 DEG C ~ 100 DEG C.
According to a further aspect in the invention, the color filter film that a kind of preparation in accordance with the present invention obtains is provided.
Preparation in accordance with the present invention, provides a kind of OLED display, and this display device comprises the color filter film obtained prepared according to the methods of the invention.
Preparation in accordance with the present invention, provides a kind of LCD display device, and this display device comprises the color filter film obtained prepared according to the methods of the invention.
According to flexible display apparatus of the present invention, this display device comprises the color filter film obtained prepared according to the methods of the invention.
Beneficial effect of the present invention is as follows:
Chromatic photoresist composition according to the present invention due to the initiating agent added be the potpourri of thermal initiator and light trigger, and the decomposition temperature of the thermal initiator added is lower, can select the different thermal initiator with lower decomposition temperature (when being reduced to less than 100 DEG C preparations for OLED or flexible display apparatus or dye-type LCD display device as needed rear baking temperature as required, then can select the initiating agent of initiation temperature below 80 DEG C), drying operating temperature after can reducing during color filter film, therefore preparation OLED display can be used it for, LCD display device and flexible display apparatus, and provide the OLED display comprised according to color filter film of the present invention, LCD display device and flexible display apparatus.
Accompanying drawing explanation
Fig. 1 is microphotograph before the color filter film adhesive tape that obtains of embodiment 3;
Fig. 2 is microphotograph after the color filter film adhesive tape that obtains of embodiment 3.
Embodiment
Concrete embodiment is only explanation of the present invention, and is not construed as limiting the invention, and will be further described the present invention according to concrete embodiment and describe below.
According to chromatic photoresist composition provided by the invention, said composition comprises with parts by weight: 20 ~ 30 parts of monomer solid contents, 20 ~ 30 parts of resin solid contents, 15 ~ 20 parts of color pigment liquid solid contents, 4 ~ 6 parts of auxiliary agent solid contents, 5 ~ 10 parts of light triggers and 0.06 ~ 3 part of thermal initiator.
According to chromatic photoresist composition of the present invention, wherein, resin preferred bases soluble resin, preferred acrylate resinoid further, further preferred molecular weight be 6000,8000,12000,13000 and 20000, acid number be 40,60,80 and 90 acrylic resin, further preferred Japanese Showa Corporation acrylic resin; Monomer is polymerisable monomer, preferred dipentaerythritol acrylate and/or dihydroxy polyethyleneglycol diacrylate, described dipentaerythritol acrylate preferred Nippon Kayaku K. K dipentaerythritol acrylate, described dihydroxy polyethyleneglycol diacrylate preferred BASF AG system; Wherein auxiliary agent comprises levelling agent, sensitizer and coupling agent etc., auxiliary agent preferred pentaerythrite four-3 sulfydryl acrylate, further preferred Japanese Showa resin Co., Ltd. pentaerythrite four-3 sulfydryl acrylate; The preferred propylene glycol methyl ether acetate of solvent, propylene glycol monomethyl ether and/or propylene glycol acetate.Due to the solution that the most of raw material in composition is containing solid, and solid is wherein effective constituent, therefore with solid wherein for standard combines, wherein monomer, resin, auxiliary agent and pigment liquid are solution, with the solid added for standard, initiating agent is solid, is as the criterion with addition; Can supplementing solvent in the composition according to the concentration of monomer, resin, auxiliary agent and pigment liquid.
In addition, according to the composition of embodiment of the present invention, initiating agent comprises light trigger and thermal initiator, in conventional color light resistance composition, initiating agent only adopts light trigger, and the photopolymerization that light trigger causes, when carrying out uv-exposure, top layer color pigment liquid can sponge most of ultraviolet light, causes the monomer polymerization in overall rete uneven, causes cured film poor stability.And add the mixed initiator of light trigger and thermal initiator in the present compositions; wherein light trigger is the free radical type initiating agent that can be analyzed to living radical under ultraviolet light; preferred fragrance ketone, benzoin and derivant thereof and benzil derivatives; wherein fragrant ketone preferred aryl groups alkyl ketone; the preferred 1-of aryl alkyl ketone [4-(thiophenyl) phenyl]-1,2-octanedione-2-(O-benzoyl oxime) and 1-[9-ethyl-6-(2-methyl benzoyl)-9-carbazole-3-ethyl] ethyl ketone-1-(O-acetyl oxime).
Chromatic photoresist composition according to the present invention, owing to employing thermal initiator, can reduce the rear baking temperature in color filter film preparation process, can will prepare the method for color filter film for the preparation of OLED display, LCD display device and flexible display apparatus.
Addition according to thermal initiator and monomer can be found out, thermal initiator accounts for 0.3 ~ 10% of amount of monomer, preferably 0.5 ~ 6%, further preferably 1 ~ 5%, the addition scope of thermal initiator is now best, if the thermal initiator added is too much, then can remaining residue, cross that polymerization effect is bad at least.
According to composition of the present invention, described thermal initiator is the radical initiator of decomposition temperature≤120 DEG C, and preferably decomposition temperature is 40 DEG C ~ 100 DEG C further, further preferably 60 DEG C ~ 90 DEG C.
According to the composition of one embodiment of the present invention, described thermal initiator be selected from following at least one: azo-initiator, organic peroxy class initiating agent, peroxidating two acyl class initiating agent and hydroperoxides.Azo-initiator comprises azoisobutyronitrile and ABVN; Organic peroxy class initiating agent comprises di-isopropyl peroxydicarbonate and di-cyclohexylperoxy di-carbonate; Peroxidating two acyl class initiating agent comprises benzoyl peroxide and lauroyl peroxide; Hydroperoxides comprise cumene hydroperoxide and tert-butyl hydroperoxide.
According to composition of the present invention, in color pigment liquid, at least comprise a kind of dye coloring agent; Described dye coloring agent preferably includes cudbear colorant.
Add purple dye liquid according to color pigment liquid pigment liquid of the present invention preferred red pigment liquid, viridine green liquid, blue pigment liquid, yellow uitramarine liquid, indigo plant, greenly add yellow pigment liquid, and the pigment liquid of all preferred ENF Inc. of Korea S, and wherein at least comprise a kind of dye coloring agent, as cudbear colorant, the model that cudbear colorant preferred ARIMOTO CHEMICAL CO.LTDS produces is the dye coloring agent of FS Blue1501; Add transmitance and contrast that dye coloring agent can increase color filter film in the composition.
According to the preparation method of the color filter film of one embodiment of the present invention, will composition according to the present invention for the preparation of color filter film, wherein, the method comprise front baking operation: 40 DEG C ~ 65 DEG C baking 110 ~ 300 seconds; Rear baking operation: 80 DEG C ~ 180 DEG C bakings 60 ~ 120 minutes, temperature preferably 80 DEG C ~ 100 DEG C in rear baking operation.
According to the preparation method of color filter film of the present invention, first the chromatic photoresist composition of stir (generally needing stirring 2 hours) is coated on clean glass substrate uniformly, front baking step removes most of solvent, pre-bake temperature is reduced to 40 DEG C ~ 65 DEG C, preferably 45 DEG C ~ 60 DEG C further, baking time is 110 ~ 300 seconds, preferably 150 ~ 250 seconds further, further preferably 180 ~ 200 seconds, pre-bake temperature can regulate according to the decomposition temperature of thermal initiator, general pre-bake temperature at least decomposes trigger monomer polymerization lower than decomposition of initiator temperature 10 DEG C to avoid thermal initiator in front baking step, after front baking step completes, cooled by glass substrate, then use photo-etching machine exposal, exposure is 100mJ ~ 800mJ, preferably 200 ~ 500mJ, by photocuring, and monomer polymerization about about 10% to 20%, development washes away the region covered by mask plate, development time is 20 ~ 100 seconds, post-baking step is entered after having developed, at 80 DEG C ~ 180 DEG C, preferably 80 ~ 100 DEG C, toast 60 ~ 120 minutes, preferably 80 ~ 100 minutes, rear baking completes, and completes more than 80% monomer polymerization and film solidification at post-baking step, after in rear bakings operation baking temperature at least specific heat decomposition of initiator temperature high 15 DEG C to ensure that monomer is polymerized completely.
According to the preparation method of color filter film of the present invention, add the thermal initiator of trigger monomer polymerization under low temperature, rear baking temperature is at least reduced to 180 DEG C, 80 DEG C can be dropped to even lowlyer, just can realize monomer to be polymerized completely, add thermal initiator makes monomer polymerization complete simultaneously, also ensure that the stability of color filter film.
According to a further aspect in the invention, the color filter film that a kind of method produced according to the present invention obtains is provided.
According to a further aspect in the invention, provide a kind of OLED display, this display device comprises the color filter film obtained prepared according to the methods of the invention.
According to a further aspect in the invention, provide a kind of LCD display device, comprise the color filter film obtained prepared according to the methods of the invention.
According to a further aspect in the invention, provide a kind of flexible display apparatus, this display device comprises the color filter film obtained prepared according to the methods of the invention.
According to the color filter film of OLED display provided by the invention, LCD display device and flexible display apparatus, the decomposition temperature of the thermal initiator selected in the composition preparing color filter film is lower, rear baking temperature is made to control monomer can be made to cause completely 80 ~ 100 DEG C time, thus technological temperature, lower than the requirement of 100 DEG C, improves the resolution of display device when meeting preparation display device simultaneously.
As can be seen here, more according to the optional element of chromatic photoresist composition of the present invention, color filter film and preparation method thereof, OLED display, LCD display device and flexible display apparatus, different embodiments can be combined into according to claim of the present invention.Therefore embodiment only as the description of this invention not as limitation of the present invention.
Embodiment 1-6 all describes the chromatic photoresist composition of different embodiment and the method preparing color filter film with described composition and the color filter film obtained.
Embodiment 1
Chromatic photoresist composition according to the present invention comprises: 20 parts of monomer solid contents, 20 parts of resin solid contents, 15 parts of color pigment liquid solid contents, 4 parts of auxiliary agent solid contents, 5 parts of light triggers and 0.06 part of thermal initiator; Light trigger is 1-[4-(thiophenyl) phenyl]-1,2-octanedione-2-(O-benzoyl oxime), and thermal initiator is the azoisobutyronitrile of azo-initiator; Resin is acrylic resin, and molecular weight is 6000,8000,12000,13000 or 20000, and acid number is 40,60,80 or 90; Monomer is dipentaerythritol acrylate; Auxiliary agent is pentaerythrite four-3 sulfydryl acrylate.
By composition dissolves in propylene glycol methyl ether acetate, be coated on clean glass substrate uniformly, pre-bake temperature is 40 DEG C, and baking time is 110 seconds; After front baking step completes, cooled by glass substrate, then use photo-etching machine exposal, exposure is 100mJ, by photocuring, and monomer polymerization about about 10%; Development washes away the region covered by mask plate, and development time is 20 seconds, enters post-baking step after having developed, and at 80 DEG C, toasts and has dried after 60 minutes.
Embodiment 2
Chromatic photoresist composition according to the present invention comprises: 30 parts of monomer solid contents, 30 parts of resin solid contents, 20 parts of color pigment liquid solid contents, 6 parts of auxiliary agent solid contents, 10 parts of light triggers and 3 parts of thermal initiators, wherein light trigger is 1-[9-ethyl-6-(2-methyl benzoyl)-9H-carbazole-3-base] ethyl ketone-1-(O-acetyl oxime), and thermal initiator is the di-isopropyl peroxydicarbonate of organic peroxy class initiating agent; Resin is acrylic resin, and the molecular weight of acrylic resin is 6000,8000,12000,13000 or 20000, and acid number is 40,60,80 or 90; Monomer is dihydroxy polyethyleneglycol diacrylate; Auxiliary agent is pentaerythrite four-3 sulfydryl acrylate;
Be dissolved in by above-mentioned composition in propylene glycol monomethyl ether, be coated on clean glass substrate uniformly, pre-bake temperature is 65 DEG C, and baking time is 300 seconds; After front baking step completes, cooled by glass substrate, then use photo-etching machine exposal, exposure is 800mJ, by photocuring, and monomer polymerization about about 10%; Development washes away the region covered by mask plate, and development time is 100 seconds, enters post-baking step after having developed, and at 180 DEG C, toast 120 minutes, rear baking completes.
Embodiment 3
Chromatic photoresist composition according to the present invention comprises: 25 parts of monomer solid contents, 25 parts of resin solid contents, 18 parts of color pigment liquid solid contents, 5 parts of auxiliary agent solid contents, 8 parts of light triggers and 1 part of thermal initiator, wherein, light trigger is 1-[4-(thiophenyl) phenyl]-1,2-octanedione-2-(O-benzoyl oxime), thermal initiator is the benzoyl peroxide of peroxidating two acyl class initiating agent; Resin is acrylic resin, and the molecular weight of acrylic resin is 6000,8000,12000,13000 or 20000, and acid number is the acrylic resin of 40,760,80 or 90; Monomer is dipentaerythritol acrylate; Auxiliary agent is pentaerythrite four-3 sulfydryl acrylate, wherein contains cudbear colorant in color pigment solid content.
By composition dissolves in propylene glycol acetate, be coated on clean glass substrate uniformly, pre-bake temperature is 45 DEG C, and baking time is 200 seconds; After front baking step completes, cooled by glass substrate, then use photo-etching machine exposal, exposure is 500mJ, by photocuring, and monomer polymerization about about 10%; Development washes away the region covered by mask plate, and development time is 80 seconds; Enter post-baking step after having developed, at 90 DEG C, toast baking after 100 minutes and operated.
Embodiment 4
Chromatic photoresist composition according to the present invention comprises: 28 parts of monomer solid contents, 29 parts of resin solid contents, 19 parts of color pigment liquid solid contents, 5 parts of auxiliary agent solid contents, 7 parts of light triggers and 2 parts of thermal initiators; Wherein, light trigger is 1-[9-ethyl-6-(2-methyl benzoyl)-9H-carbazole-3-base] ethyl ketone-1-(O-acetyl oxime), and thermal initiator is the cumene hydroperoxide in hydroperoxides; Resin is acrylic resin, and the molecular weight of acryl resin resinoid is 6000,8000,12000,13000 or 20000, and acid number is the acrylic resin of 40,60,80 or 90; Monomer is dipentaerythritol acrylate, and auxiliary agent is pentaerythrite four-3 sulfydryl acrylate, wherein contains cudbear colorant in color pigment solid content.
By in composition dissolves propylene glycol monomethyl ether, be coated on clean glass substrate uniformly, pre-bake temperature is 60 DEG C, and baking time is 250 seconds; After front baking step completes, cooled by glass substrate, then use photo-etching machine exposal, exposure is 200mJ, by photocuring, and monomer polymerization about about 10%; Development washes away the region covered by mask plate, and development time is 70 seconds, enters post-baking step after having developed, and 100 DEG C of bakings 80 minutes, rear baking operated.
Embodiment 5
Chromatic photoresist composition according to the present invention comprises: 24 parts of monomer solid contents, 23 parts of resin solid contents, 17 parts of color pigment liquid solid contents, 5 parts of auxiliary agent solid contents, 6 parts of light triggers and 2 parts of thermal initiators; Wherein, light trigger is 1-[9-ethyl-6-(2-methyl benzoyl)-9H-carbazole-3-base] ethyl ketone-1-(O-acetyl oxime), and thermal initiator is the cumene hydroperoxide of hydroperoxides; Resin is acrylic resin, and the molecular weight of acrylic resin is 6000,8000,12000,13000 or 20000, and acid number is 40,60,80 or 90; Monomer is dipentaerythritol acrylate, and auxiliary agent is pentaerythrite four-3 sulfydryl acrylate.
By composition dissolves in propylene glycol monomethyl ether, be coated on clean glass substrate uniformly, pre-bake temperature is 50 DEG C, and baking time is 180 seconds; After front baking step completes, cooled by glass substrate, then use photo-etching machine exposal, exposure is 600mJ, by photocuring, and monomer polymerization about about 10%; Development washes away the region covered by mask plate, and development time is 60 seconds; Enter post-baking step after having developed, 95 DEG C of bakings 90 minutes, rear baking operated.
Embodiment 6
Chromatic photoresist composition according to the present invention comprises: 22 parts of monomer solid contents, 29 parts of resin solid contents, 16 parts of color pigment liquid solid contents, 5 parts of auxiliary agent solid contents, 7 parts of light triggers and 1 part of thermal initiator; Wherein, light trigger is 1-[4-(thiophenyl) phenyl]-1,2-octanedione-2-(O-benzoyl oxime), and thermal initiator is azo-initiator azoisobutyronitrile; Resin is acrylic resin, and the molecular weight of acrylic resin is 6000,8000,12000,13000 and 20000, and acid number is 40,60,80 or 90; Monomer is dipentaerythritol acrylate; Auxiliary agent is pentaerythrite four-3 sulfydryl acrylate.
By composition dissolves in propylene glycol methyl ether acetate, be coated on clean glass substrate uniformly, pre-bake temperature is 56 DEG C, baking time is 280 seconds, after front baking step completes, is cooled by glass substrate, use photo-etching machine exposal again, exposure is 600mJ, by photocuring, and monomer polymerization about about 10%; Development washes away the region covered by mask plate, and development time is 40 seconds, enters post-baking step after having developed, and at 85 DEG C, toast 85 minutes, rear baking has operated.
The composition had good stability all has been prepared according to embodiment of the present invention 1-6, and endurance and the good color filter film of alkali resistance, by the color filter film that obtains according to embodiment 1,3,4,5 and 6 for the preparation of in OLED display, LCD display device and flexible display apparatus, meet its requirement to rear baking temperature, have also been obtained the above-mentioned display device that quality is good.
Detect the stability of the composition obtained according to embodiment 1-6, detection method is that chromatic photoresist composition is placed the change detecting its viscosity (cps) for 0,7,30 and 60 day, changes less then explanation composition more stable.Testing result is as shown in table 1:
Table 1
Data according to table 1 can be found out, after the composition of embodiment 1-6 places 60 days, its viscosity remains unchanged all substantially, therefore the having good stability of composition.
The adhesion of the color filter film that embodiment 1-6 obtains and resolution are detected.Wherein, the evaluation method of adhesion is: the pattern drawing a cross shape with the beautiful cutter of hundred lattice in the rear baking region that color filter film exposes entirely completely, after brushing 3-5 time gently with hairbrush, be positioned over basis of microscopic observation and take pictures, use tape-stripping institute mark signature frame pattern afterwards again, take pictures with microscopic examination again, if image does not have significant change, then adhesion preferably 5B; If sticked out more than 25% by adhesive tape, then adhesion is 4B, if sticked out more than 50% by adhesive tape, then adhesion is 3B.The minimum dimension of image of resolution for glass plate after exposure imaging can retain, resolution is less, comprise this color filter film display device resolution higher.Concrete test result is as shown in table 2:
Table 2
Testing result according to table 2 can be found out, the color filter film that embodiment 1-6 prepares has good adhesion, therefore the color filter film prepared has good stability, and its resolution is also very little, illustrates that resolution is very high when being applied to display device.Wherein, Fig. 1 is the microscope figure before the color filter film adhesive tape that obtains of embodiment 3; Fig. 2 is the microscope figure after the color filter film adhesive tape that obtains of embodiment 3; As can be seen from comparison with Figure 1 and Figure 2, significantly do not change before adhesive tape and after adhesive tape, therefore its adhesion is 5B.
Meanwhile, the endurance of the color filter film that embodiment 1-6 prepares and alkali resistance are detected.Wherein endurance is detected by colourity change (i.e. aberration Δ Eab value) color filter film being immersed a certain ad-hoc location before and after nitrogen methyl pyrrolidone half an hour; Alkali resistance detects by color filter film being put into colourity change (i.e. aberration Δ Eab value) of Tetramethylammonium hydroxide (TMAH) before and after half an hour.Concrete testing result is as shown in table 3:
Table 3
Can find out that color filter film that embodiment 1-6 obtains soaks chromatic aberration before and after half an hour in nitrogen methyl pyrrolidone by table 3 little; Soak half an hour in TMAH after, chromatic aberration is also very little, and the color filter film therefore prepared in embodiment 1-6 has good endurance and alkali resistance.
Can find out according to above-mentioned detection data, composition according to the present invention has good stability, color filter film according to the present invention has good alkali resistance and endurance, has good resolution with the display that color filter film according to the present invention prepares.
In addition, can control at 80 ~ 100 DEG C according to drying technique after color filter film of the present invention, this color filter film can be applied to when it is in this temperature in preparation OLED display, LCD display device and flexible display apparatus, while meeting described display device low-temperature operation preparation technology demand, obtain the good described display device of resolution.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (16)
1. a chromatic photoresist composition, it is characterized in that, said composition comprises with parts by weight: 20 ~ 30 parts of monomer solid contents, 20 ~ 30 parts of resin solid contents, 15 ~ 20 parts of color pigment liquid solid contents, 4 ~ 6 parts of auxiliary agent solid contents, 5 ~ 10 parts of light triggers and 0.06 ~ 3 part of thermal initiator.
2. composition as claimed in claim 1, is characterized in that, described thermal initiator is the radical initiator of decomposition temperature≤120 DEG C.
3. composition as claimed in claim 2, is characterized in that, described thermal initiator be selected from following at least one: azo-initiator, organic peroxy class initiating agent, peroxidating two acyl class initiating agent and hydroperoxides.
4. composition as claimed in claim 3, it is characterized in that, described azo-initiator comprises azoisobutyronitrile and ABVN.
5. composition as claimed in claim 3, it is characterized in that, described organic peroxy class initiating agent comprises di-isopropyl peroxydicarbonate and di-cyclohexylperoxy di-carbonate.
6. composition as claimed in claim 3, it is characterized in that, described peroxidating two acyl class initiating agent comprises benzoyl peroxide and lauroyl peroxide.
7. composition as claimed in claim 3, it is characterized in that, described hydroperoxides comprise cumene hydroperoxide and tert-butyl hydroperoxide.
8. composition as claimed in claim 1, is characterized in that, at least comprise a kind of dye coloring agent in described color pigment liquid.
9. composition as claimed in claim 8, it is characterized in that, described dye coloring agent comprises cudbear colorant.
10. a preparation method for color filter film, is characterized in that, by arbitrary for claim 1-9 described composition for the preparation of color filter film, wherein, the method comprised front baking operation: 40 DEG C ~ 65 DEG C bakings 110 ~ 300 seconds.
11. preparation methods as claimed in claim 10, is characterized in that, the method comprises rear baking operation: 80 DEG C ~ 180 DEG C bakings 60 ~ 120 minutes.
12. preparation methods as claimed in claim 11, is characterized in that, in rear baking operation, temperature is 80 DEG C ~ 100 DEG C.
13. 1 kinds as arbitrary in claim 10-12 as described in the color filter film that obtains of preparation method.
14. 1 kinds of OLED display, is characterized in that, this display device comprises the color filter film that method as claimed in claim 12 prepares.
15. 1 kinds of LCD display device, is characterized in that, this display device comprises the color filter film that method as claimed in claim 12 prepares.
16. 1 kinds of flexible display apparatus, is characterized in that, this display device comprises the color filter film that method as claimed in claim 12 prepares.
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