# US 2020/0399475 A1 · Color photoresist composition > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2020/0399475 A1 - Document ID: US20200399475A1 - Status: Published application - Kind: A1 - Application number: 16/616,478 - Filed: 2019-11-14 - Published: 2020-12-24 - Earliest claimed: 2019-06-24 - Assignees: Tcl China Star Optoelectronics Technology Co., Ltd. - Applicants: TCL China Star Optoelectronics Technology Co., Ltd. - Inventors: Yuehong ZHANG - Web page: https://patentgrep.com/patent/US20200399475A1 ## CPC - C09B 47/08: Preparation from other phthalocyanine compounds {, e.g. cobaltphthalocyanineamine complex} - C09B 67/0033: {Blends of pigments; Mixtured crystals; Solid solutions} - C08K 5/3417: condensed with carbocyclic rings - C09B 67/0035: {Mixtures of phthalocyanines} - G02B 5/201: {in the form of arrays} - G02B 5/223: {containing organic substances, e.g. dyes, inks or pigments} - C09B: ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES {, e.g. PIGMENTS}; MORDANTS; LAKES (fermentation or enzyme using processes to synthesise a desired chemical compound C12P) - C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09) - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS ## Abstract The present invention provides a color photoresist composition, based on 100 parts by weight of the color photoresist composition, including: 5-10 parts by weight of a pigment dispersion; 5-8 parts by weight of a binder resin; 5-8 parts by weight of a sandwich type phthalocyanine compound dye; 0.3-0.8 parts by weight of a photoinitiator; 70-85 parts by weight of a photoresist solvent; and 0.1-0.2 parts by weight of an additive. ## Claims ### Claim 1 A color photoresist composition, based on 100 parts by weight of the color photoresist composition, comprising: 5-10 parts by weight of a pigment dispersion; 5-8 parts by weight of a binder resin; 5-8 parts by weight of a sandwich type phthalocyanine compound dye; 0.3-0.8 parts by weight of a photoinitiator; 70-85 parts by weight of a photoresist solvent; and 0.1-0.2 parts by weight of an additive, wherein the sandwich type phthalocyanine compound dye comprises a sandwich type phthalocyanine compound and a dye solvent, and the sandwich type phthalocyanine compound has a structure of Formula 1: in the Formula 1, a central coordination metal RE is a rare earth metal element; R1 and R2 are each independently selected from at least one of H, a substituted or unsubstituted C1 to C20 aliphatic carbon chain, a C1 to C20 oxycarbon chain, an aromatic ring, a halogen, a carboxyl group, an ester group, an amino group, and —SH; and each of substitution positions of R1 and R2 is independently selected from at least one of α and β, and the rare earth metal element comprises: lanthanum (La), cerium (Ce), praseodymium (Pr), cerium (Nd), cerium (Pm), cerium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), lutetium (Lu), yttrium (Y), or scandium (Sc). ### Claim 2 (depends on 1) The color photoresist composition according to claim 1, wherein each of R1 and R2 is independently selected from at least one of H, —C5CH12, —C6H14, —OC4H10, —OC5H12, —OC6H14, —OC8H18, a substituted or unsubstituted benzene ring, a substituted or unsubstituted naphthalene ring, a substituted or unsubstituted phenoxy, —F, —Cl, —Br, —I, —COOCH3, —COOCH2CH3, —COOCH2CH2CH3, —NH2, —N(CH3)2, —N(CH2CH3)2, —N(CH2CH2CH3)2, —N(CH2CH2CH2CH3)2, —SH, —SCH3, —SCH2CH3, and —S CH2CH2CH3. ### Claim 3 (depends on 1) The color photoresist composition according to claim 1, wherein the dye solvent is selected from at least one of CCl3, CH3COOCH3, dimethylformamide (DMF), and dimethyl sulfoxide (DMSO). ### Claim 4 (depends on 1) The color photoresist composition according to claim 1, wherein the binder resin is at least one selected from the group consisting of a saturated substituted acrylic resin, an unsaturated substituted acrylic resin, and an epoxy group-substituted acrylic acid resin, wherein the saturated substituted acrylic resin comprises: acrylic acid, alkyl methacrylate, aryl methacrylate, alkyl aryl methacrylate, or a combination thereof; the unsaturated substituted acrylic resin comprises: succinic acid methacrylate; and the epoxy-based acrylic resin comprises: epoxy acrylate, epoxy methacrylate, epoxy alkyl methacrylate, epoxy aryl methacrylate, or a combination thereof. ### Claim 5 (depends on 1) The color photoresist composition according to claim 1, wherein the photoinitiator is selected from at least one of acetophenone, benzoin, diimidazole, and benzophenone, wherein the acetophenone comprises α,α-diethoxyacetophenone, 2-hydroxy-2-methyl-1-phenyl-1-propanone (HMPP), 2-methyl-2-morpholine-1-(4-methylphenylthio)propan-1-one, or combinations thereof; the benzoin comprises benzoyl, acetophenone, benzoin ether, or combinations thereof; and the diimidazole comprises hexaaryl diimidazole. ### Claim 6 (depends on 1) The color photoresist composition according to claim 1, wherein the photoresist solvent is selected from at least one of an ester solvent and an ether solvent. ### Claim 7 (depends on 1) The color photoresist composition according to claim 1, wherein the photoresist solvent comprises ethylene glycol ethyl ether acetate, diethylene glycol butyl ether acetate, propylene glycol monomethyl ether ester, or combinations thereof. ### Claim 8 (depends on 1) The color photoresist composition according to claim 1, wherein the additive is selected from at least one of a silane coupling agent, an antioxidant, an ultraviolet absorber, an antifoaming agent, and a leveling agent. ### Claim 9 A color photoresist composition, based on 100 parts by weight of the color photoresist composition, comprising: 5-10 parts by weight of a pigment dispersion; 5-8 parts by weight of a binder resin; 5-8 parts by weight of a sandwich type phthalocyanine compound dye; 0.3-0.8 parts by weight of a photoinitiator; 70-85 parts by weight of a photoresist solvent; and 0.1-0.2 parts by weight of an additive. ### Claim 10 (depends on 9) The color photoresist composition according to claim 9, wherein the sandwich type phthalocyanine compound dye comprises a sandwich type phthalocyanine compound and a dye solvent, and the sandwich type phthalocyanine compound has a structure of Formula 1: in the Formula 1, a central coordination metal RE is a rare earth metal element; each of R1 and R2 is independently selected from at least one of H, a substituted or unsubstituted C1 to C20 aliphatic carbon chain, a C1 to C20 oxycarbon chain, an aromatic ring, a halogen, a carboxyl group, an ester group, an amino group, and —SH; and each of substitution positions of R1 and R2 is independently selected from at least one of α and β. ### Claim 11 (depends on 10) The color photoresist composition according to claim 10, wherein the rare earth metal element comprises: lanthanum (La), cerium (Ce), praseodymium (Pr), cerium (Nd), cerium (Pm), cerium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), lutetium (Lu), yttrium (Y), or scandium (Sc). ### Claim 12 (depends on 10) The color photoresist composition according to claim 10, wherein R1 and R2 are each independently selected from at least one of H, —C5H12, —C6H14, —OC4H10, —OC5H12, —OC6H14, —OC8H18, a substituted or unsubstituted benzene ring, a substituted or unsubstituted naphthalene ring, a substituted or unsubstituted phenoxy, —F, —Cl, —Br, —I, —COOCH3, —COOCH2CH3, —COOCH2CH2CH3, —NH2, —N(CH3)2, —N(CH2CH3)2, —N(CH2CH2CH3)2, —N(CH2CH2CH2CH3)2, —SH, —SCH3, —SCH2CH3, and —S CH2CH2CH3. ### Claim 13 (depends on 10) The color photoresist composition according to claim 10, wherein the dye solvent is selected from at least one of CCl3, CH3COOCH3, dimethylformamide (DMF), and dimethyl sulfoxide (DMSO). ### Claim 14 (depends on 9) The color photoresist composition according to claim 9, wherein the binder resin is at least one selected from the group consisting of a saturated substituted acrylic resin, an unsaturated substituted acrylic resin, and an epoxy group-substituted acrylic acid resin, wherein the saturated substituted acrylic resin comprises: acrylic acid, alkyl methacrylate, epoxy alkyl methacrylate, epoxy aryl methacrylate, or a combination thereof; the unsaturated substituted acrylic resin comprises: succinic acid methacrylate; and the epoxy-based acrylic resin comprises: epoxy acrylate, epoxy methacrylate, epoxy alkyl methacrylate, epoxy aryl methacrylate, or a combination thereof. ### Claim 15 (depends on 9) The color photoresist composition according to claim 9, wherein the photoinitiator is selected from at least one of acetophenone, benzoin, diimidazole, and benzophenone, wherein the acetophenone comprises α,α-diethoxyacetophenone, 2-hydroxy-2-methyl-1-phenyl-1-propanone (HMPP), 2-methyl-2-morpholine-1-(4-methylphenylthio)propan-1-one, or combinations thereof; the benzoin comprises benzoyl, acetophenone, benzoin ether, and combinations thereof; and the diimidazole comprises hexaaryl diimidazole. ### Claim 16 (depends on 9) The color photoresist composition according to claim 9, wherein the photoresist solvent is selected from at least one of an ester solvent and an ether solvent. ### Claim 17 (depends on 9) The color photoresist composition according to claim 9, wherein the photoresist solvent comprises ethylene glycol ethyl ether acetate, diethylene glycol butyl ether acetate, propylene glycol monomethyl ether ester, or combinations thereof. ### Claim 18 (depends on 9) The color photoresist composition according to claim 9, wherein the additive is selected from at least one of a silane coupling agent, an antioxidant, an ultraviolet absorber, an antifoaming agent, and a leveling agent.