WO2024014689A1 - 감광성 수지 조성물, 경화막 및 이를 포함하는 표시장치 - Google Patents
감광성 수지 조성물, 경화막 및 이를 포함하는 표시장치 Download PDFInfo
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- WO2024014689A1 WO2024014689A1 PCT/KR2023/006798 KR2023006798W WO2024014689A1 WO 2024014689 A1 WO2024014689 A1 WO 2024014689A1 KR 2023006798 W KR2023006798 W KR 2023006798W WO 2024014689 A1 WO2024014689 A1 WO 2024014689A1
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/022—Quinonediazides
- G03F7/023—Macromolecular quinonediazides; Macromolecular additives, e.g. binders
- G03F7/0233—Macromolecular quinonediazides; Macromolecular additives, e.g. binders characterised by the polymeric binders or the macromolecular additives other than the macromolecular quinonediazides
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/022—Quinonediazides
- G03F7/023—Macromolecular quinonediazides; Macromolecular additives, e.g. binders
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/039—Macromolecular compounds which are photodegradable, e.g. positive electron resists
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/039—Macromolecular compounds which are photodegradable, e.g. positive electron resists
- G03F7/0392—Macromolecular compounds which are photodegradable, e.g. positive electron resists the macromolecular compound being present in a chemically amplified positive photoresist composition
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
Definitions
- the present invention relates to a photosensitive resin composition, and more specifically, to a photosensitive resin composition, a cured film, and a display device including the same.
- Photosensitive resin compositions are representative functional polymer materials that have been put to practical use in the production of various precision electronic industrial products, and are currently being used importantly in the high-tech industry, especially in the production of semiconductors and displays.
- a photosensitive resin composition refers to a composition in which a chemical change in the molecular structure occurs within a short period of time due to light irradiation, resulting in changes in physical properties such as solubility in a specific solvent, coloring, and curing.
- photosensitive resin compositions micro-precision processing is possible, energy and raw materials can be greatly reduced compared to thermal reaction processes, and work can be performed quickly and accurately in a small installation space, enabling high-tech printing fields, semiconductor production, and displays. It is widely used in various fields of the precision electronics industry, including production and photocurable surface coating materials.
- These photosensitive resin compositions can be broadly divided into negative type and positive type. In the negative type photosensitive resin composition, the light-irradiated portion is insoluble in the developer, and in the positive type photosensitive resin composition, the light-irradiated portion is insoluble in the developer. This is the type that is solubilized in .
- positive photosensitive resin compositions that can minimize defect rates and increase processing efficiency and resolution are mainly used.
- OLED organic light emitting display
- the purpose of the present invention is to provide a photosensitive resin composition that is excellent in flexibility, chemical resistance, sensitivity performance, and device reliability.
- Another object of the present invention is to provide a cured film obtained by curing the photosensitive resin composition.
- Another object of the present invention is to provide a display device including the cured film.
- an alkali-soluble resin comprising a repeating unit represented by the following general formula 1 or 2; photosensitizer; and a solvent, wherein at least one of R 1 and R 2 in the following general formulas 1 and 2 includes a molecular structure represented by the following general formula 3.
- R 1 is a divalent to octavalent organic group having 2 or more carbon atoms
- R 2 is a divalent to hexavalent organic group having 2 or more carbon atoms
- R 3 and R 4 is each independently a hydrogen atom or an organic group having 1 to 20 carbon atoms
- a and b are each independently 0 to 4
- c and d are each independently 0 to 2
- a+b is 1 or more
- A is at least one of a fluorine atom, an oxygen atom, a sulfur atom, and a hydroxyl group.
- C1 and C2 are each independently a substituted or unsubstituted aryl group having 6 to 12 carbon atoms; or a substituted or unsubstituted heteroaryl group having 5 to 12 carbon atoms; C1 and C2 have the same or different molecular structures, and when C1 and C2 have the same molecular structures, C1 and C2 contain heteroatoms. and o is an integer of 0 to 2, p is 0 or 1, q is 0 or 1, r is an integer of 0 to 2, p+q is an integer of 1 or more, and o+r is an integer of 1 or more. am.
- A may be an aromatic organic group containing the fluorine atom and a hydroxyl group.
- R 2 may include a molecular structure represented by the general formula 3.
- a in the general formula 3 may include a molecular structure represented by the following general formula 4.
- R 5 is one selected from the group consisting of an oxygen atom, C(CF 3 ) 2, C(CH 3 ) 2 , and SO 2
- R 6 is each independently a hydrogen atom, a thiol group, Any one selected from the group consisting of an alkyl group with 1 to 4 carbon atoms, an alkenyl group with 2 to 4 carbon atoms, a cycloalkyl group with 3 to 6 carbon atoms, a cycloalkenyl group with 3 to 6 carbon atoms, and an aryl group with 6 to 12 carbon atoms. It can be.
- the molecular structure represented by the general formula 3 may include any one of the molecular structures represented by the following formulas 1 to 4: .
- the heteroaryl group in General Formula 3 may include a nitrogen atom or a sulfur atom.
- n in the general formula 2 may exceed 50 mol%.
- the molecular structure represented by the general formula 3 may be included in an amount of 5 to 100 mol%, based on the total monomers of the alkali-soluble resin. there is.
- the molecular structure represented by the general formula 3 may be included in an amount of 30 to 80 mol% based on the diamine monomer of the alkali-soluble resin. .
- the photosensitizer includes an esterified quinonediazide-based compound, and the esterified quinonediazide-based compound is a ballast. It may contain a phenol structure.
- any one of the first to tenth aspects further comprises an additive, wherein the additive is any one selected from the group consisting of a crosslinker, a thermal acid generator, a UV absorber, and mixtures thereof.
- the additive is any one selected from the group consisting of a crosslinker, a thermal acid generator, a UV absorber, and mixtures thereof.
- a phosphorus photosensitive resin composition may be provided.
- the substituted aryl group having 6 to 12 carbon atoms has at least one hydrogen atom bonded to the aryl group having 6 to 12 carbon atoms. It includes a structure replaced with an alkyl group, a halogen atom, or an alkoxy group, and the substituted heteroaryl group having 5 to 12 carbon atoms is such that at least one hydrogen atom bonded to the heteroaryl group having 5 to 12 carbon atoms is an alkyl group, a halogen atom, Alternatively, it may include a structure replaced with an alkoxy group.
- a cured film obtained by curing the photosensitive resin composition according to any one of the first to twelfth aspects can be provided.
- a display device including the cured film according to the 13th aspect can be provided.
- the flexibility of the device is improved by forming hydrogen bonds between molecules and increasing the free volume corresponding to the free space between atoms, and improving chemical resistance, sensitivity performance, and adhesion. And a photosensitive resin composition with excellent device reliability can be provided.
- FIG. 1 is a vertical cross-sectional view of a display device according to an embodiment of the present invention.
- 'substituted' means that at least one hydrogen atom is a halogen atom, an alkyl group, an alkoxy group, an alkylthiol group, an ether group, an acetal group, an alkenyl group, a cycloalkyl group, a heterocycloalkyl group, an allyl group, a benzyl group, It is defined as being replaced with any one selected from the group consisting of aryl groups, heteroaryl groups, derivatives thereof, and combinations thereof.
- One embodiment of the present invention is an alkali-soluble resin comprising a repeating unit represented by the following general formula 1 or 2; photosensitizer; and a solvent, wherein at least one of R 1 and R 2 in the following general formulas 1 and 2 includes a molecular structure represented by the following general formula 3.
- R 1 is a divalent to octavalent organic group having 2 or more carbon atoms
- R 2 is a divalent to hexavalent organic group having 2 or more carbon atoms
- R 3 and R 4 is each independently a hydrogen atom or an organic group having 1 to 20 carbon atoms
- a and b are each independently 0 to 4
- c and d are each independently 0 to 2
- a+b is 1 or more
- A is at least one of a fluorine atom, an oxygen atom, a sulfur atom, and a hydroxyl group.
- C1 and C2 are each independently a substituted or unsubstituted aryl group having 6 to 12 carbon atoms; or a substituted or unsubstituted heteroaryl group having 5 to 12 carbon atoms; C1 and C2 have the same or different molecular structures, and when C1 and C2 have the same molecular structures, C1 and C2 contain heteroatoms. and o is an integer of 0 to 2, p is 0 or 1, q is 0 or 1, r is an integer of 0 to 2, p+q is an integer of 1 or more, and o+r is an integer of 1 or more. am.
- chemical resistance and sensitivity performance can be further improved as A is an aromatic organic group containing at least one of a fluorine atom, an oxygen atom, a sulfur atom, and a hydroxyl group, and in particular, the hydroxyl group (-OH ) can adjust the sensitivity performance.
- A is an aromatic organic group containing at least one of a fluorine atom, an oxygen atom, a sulfur atom, and a hydroxyl group, and in particular, the hydroxyl group (-OH ) can adjust the sensitivity performance.
- B is an amide group (CONH)
- flexibility can be significantly improved compared to an amine group (-NH 2 )
- C1 and C2 have the same or different molecular structures, sensitivity due to existing diamine monomers The problem of poor performance can be solved, and sensitivity performance and flexibility can be improved at the same time.
- the flexibility of the device is improved by forming hydrogen bonds between molecules and increasing the free volume corresponding to the free space between atoms, and improving chemical resistance, sensitivity, performance, adhesion, and A photosensitive resin composition with excellent device reliability can be provided.
- the photosensitive resin composition according to the present invention includes an alkali-soluble resin containing a repeating unit represented by the following general formula 1 or 2.
- R 1 is a divalent to octavalent organic group having 2 or more carbon atoms
- R 2 is a divalent to hexavalent organic group having 2 or more carbon atoms
- R 3 and R 4 is each independently a hydrogen atom or an organic group having 1 to 20 carbon atoms
- a and b are each independently 0 to 4
- c and d are each independently 0 to 2
- a+b is 1 or more
- the alkali-soluble resin may include a polyamic acid (ester) repeating unit represented by General Formula 1 or a polyimide repeating unit represented by General Formula 2.
- a polyamic acid (ester) repeating unit represented by General Formula 1 or a polyimide repeating unit represented by General Formula 2.
- the polyimide repeating unit increases, flexibility, sensitivity performance, residue performance, chemical resistance, and device reliability can be improved.
- the imidization index of the alkali-soluble resin may be more than 50% and 100%, specifically 60% to 100%, and more specifically 70% to 100%.
- the imidization index of the alkali-soluble resin can be adjusted by varying the synthesis temperature and synthesis time.
- the synthesis temperature and synthesis time of the polyimide resin may be 2 to 6 hours at 100 to 180°C.
- R 1 and R 2 includes a molecular structure represented by the following general formula 3.
- A may be an aromatic organic group containing at least one of a fluorine atom, an oxygen atom, a sulfur atom, and a hydroxyl group, and may specifically be an aromatic organic group containing the fluorine atom and a hydroxyl group.
- A since A is an aromatic organic group containing both a fluorine atom and a hydroxyl group, chemical resistance performance and sensitivity performance can be improved simultaneously.
- fluorine atoms can contribute to chemical resistance performance and hydroxyl groups can contribute to sensitivity performance.
- B is an amide group (CONH), so the flexibility of the device can be significantly improved compared to an amine group (-NH 2 ).
- C1 and C2 are each independently a substituted or unsubstituted aryl group having 6 to 12 carbon atoms; Or a substituted or unsubstituted heteroaryl group having 5 to 12 carbon atoms.
- the heteroaryl group may be a 5-membered or 6-membered ring and may specifically be pyridine.
- C1 and C2 may have the same or different molecular structures and may be specifically different from each other. When C1 and C2 have the same molecular structure, C1 and C2 may contain heteroatoms, for example, a heteroaryl group. When C1 and C2 have different molecular structures, flexibility and sensitivity performance can be improved simultaneously.
- the 'substituted aryl group having 6 to 12 carbon atoms' in C1 and C2 is a structure in which at least one hydrogen atom bonded to the aryl group having 6 to 12 carbon atoms is replaced with an alkyl group, a halogen atom, or an alkoxy group.
- the 'substituted heteroaryl group having 5 to 12 carbon atoms' includes a structure in which at least one hydrogen atom bonded to the heteroaryl group having 5 to 12 carbon atoms is replaced with an alkyl group, a halogen atom, or an alkoxy group. can do.
- the alkyl group may be an alkyl group having 1 to 5 carbon atoms
- the halogen atom may be a fluorine atom, a chlorine atom, a bromine atom, or an iodine atom
- the alkoxy group may be an alkoxy group having 1 to 5 carbon atoms. If these substituents are further included, crosslinking between resin molecules is possible, which can be expected to further improve flexibility.
- R 2 may include a molecular structure represented by the general formula 3.
- the R 2 may be part of the molecular structure derived from a diamine monomer used to synthesize polyimide resin.
- A may include a molecular structure represented by the following General Formula 4.
- R 5 may be any one selected from the group consisting of an oxygen atom, C(CF 3 ) 2, C(CH 3 ) 2 , and SO 2 , and may specifically be C(CF 3 ) 2 . there is.
- R 5 is C(CF 3 ) 2
- chemical resistance performance may be improved as a fluorine atom is included.
- R 6 is each independently a hydrogen atom, a thiol group, an alkyl group with 1 to 4 carbon atoms, an alkenyl group with 2 to 4 carbon atoms, a cycloalkyl group with 3 to 6 carbon atoms, or a cycloalkyl group with 3 to 6 carbon atoms. It may be any one selected from the group consisting of an alkenyl group and an aryl group having 6 to 12 carbon atoms.
- the molecular structure represented by General Formula 3 may include any one of the molecular structures represented by the following Formulas 1 to 4.
- the molecular structure represented by the general formula 3 includes as a parent the molecular structure represented by the following formulas 1 to 4, where at least one hydrogen atom bonded to an aryl group or heteroaryl group is an alkyl group or a halogen atom. , it may be a molecular structure replaced with any one of the alkoxy groups.
- any one of the molecular structures represented by Formulas 1 to 4 as the parent structure intermolecular hydrogen bonding occurs and a free volume corresponding to the free space between atoms is formed.
- a diamine monomer that can increase the flexibility of the device, it is possible to provide a photosensitive resin composition with excellent chemical resistance, sensitivity performance, adhesion, and device reliability.
- the heteroaryl group may include a nitrogen atom or a sulfur atom, and may specifically include a nitrogen atom.
- the heteroaryl group includes a nitrogen atom with high electronegativity in the ring, so sensitivity and high transparency performance can be further improved.
- n in General Formula 2 may exceed 50 mol%.
- n is the mole percentage of the polyimide repeating unit, and as it exceeds 50 mole%, the flexibility, sensitivity performance, chemical resistance performance, and reliability of the device can be significantly improved.
- the molecular structure represented by General Formula 3 may be included in an amount of 5 to 100 mol%, and specifically may be included in an amount of 5 to 90 mol%. You can. All monomers of the alkali-soluble resin may include diamine monomers and acid anhydride monomers. When the content of the molecular structure represented by General Formula 3 satisfies the above numerical range, the flexibility, chemical resistance, and sensitivity performance of the device can be further improved.
- the molecular structure represented by General Formula 3 may be included in an amount of 30 to 100 mol%, and specifically, may be included in an amount of 30 to 80 mol% based on the diamine monomer of the alkali-soluble resin. .
- the content of the molecular structure represented by General Formula 3 based on the diamine monomer satisfies the above numerical range, the flexibility, chemical resistance, and sensitivity performance of the device can be further improved.
- the photosensitive resin composition according to the present invention includes a photosensitive agent that imparts alkaline developability to the exposed area after exposure.
- the photosensitizer includes an esterified quinonediazide-based compound, and the esterified quinonediazide-based compound may include a phenol structure as a ballast.
- the parent may be any one selected from the structures represented by the following formulas (a) to (h). At least one hydroxyl group in the parent body may react with an acid compound containing a carboxyl group to proceed with an esterification reaction.
- R 7, R 8 and R 11 to R 55 are each independently a hydrogen atom, a halogen, a hydroxyl group, an alkyl group having 1 to 4 carbon atoms, or an alkenyl group having 2 to 4 carbon atoms, and is each independently a hydrogen atom, a halogen, or an alkyl group having 1 to 4 carbon atoms, and R 9 and R 10 are each independently a hydrogen atom or an alkyl group having 1 to 4 carbon atoms.
- the content of the photosensitizer may be 5 to 50 parts by weight, specifically 10 to 30 parts by weight, based on 100 parts by weight of the alkali-soluble resin.
- the content of the photosensitizer satisfies the above numerical range, the pattern shape can be properly maintained and appropriate photosensitivity and heat resistance can be secured.
- the photosensitive resin composition according to the present invention contains a solvent.
- the solvent is, for example, gamma-Butyrolactone (GBL), N-methylpyrrolidone (NMP), propylene glycol monomethyl ether acetate (PGMEA), ethyl Lactate (EL), methyl 3-methoxypropionate (MMP), propylene glycol monomethyl ether (PGME), diethylene glycol ethyl methyl ether; MEDG), diethylene glycol butyl methyl ether (MBDG), diethylene glycol dimethyl ether (DMDG), diethylene glycol diethyl ether (DEDG) ) and mixtures thereof.
- GBL gamma-Butyrolactone
- NMP N-methylpyrrolidone
- PMEA propylene glycol monomethyl ether acetate
- EL ethyl Lactate
- MMP methyl 3-methoxypropionate
- PGME propylene glycol monomethyl ether
- MEDG di
- the photosensitive resin composition according to another embodiment of the present invention may further include additives.
- the additive may be any one selected from the group consisting of a crosslinking agent, a thermal acid generator, a UV absorber, and mixtures thereof.
- the crosslinking agent can effectively control the shape of the pattern by performing a crosslinking reaction with the alkali-soluble resin by heat in the thermal curing process.
- the crosslinking agent may be, for example, a crosslinking agent having an alkoxymethyl group, or a crosslinking agent having an epoxy group.
- the thermal acid generator serves as a catalyst for the crosslinking reaction and can effectively control the flowing down of the pattern.
- the thermal acid generator and the UV absorber are not particularly limited and may be commercial products in the relevant technical field.
- Another embodiment of the present invention can provide a cured film of the photosensitive resin composition and a display device including the same.
- the solvent contained in the photosensitive resin composition may be volatilized and removed. Therefore, 'cured film of photosensitive resin composition' may mean a cured film state from which the solvent has been removed.
- FIG. 1 is a vertical cross-sectional view of a display device according to an embodiment of the present invention.
- the cured film according to the present invention may be an interlayer insulating layer.
- the interlayer insulating layer may be disposed on an ILD (Interlayer Dielectric) layer and may be disposed between the first and second electrodes facing each other.
- the interlayer insulating layer may cover a portion of the electrode.
- the photosensitive resin composition according to the present invention can be widely applied to semiconductor devices, flexible display devices, OLED (organic light emitting diode) devices, etc.
- Polyamic acid was synthesized in the same manner as in Synthesis Example 1, except for the compound represented by Formula 1-1, and 2,2-bis (3-amino-4-hydroxyphenyl) -hexafluoropropane (2,2 -Bis(3-amino-4-hydroxyphenyl)-hexafluoropropane; bis-APAF; 100 mol) was used. Afterwards, polyimide was synthesized by additionally stirring at 180°C for 4 hours.
- Polyamic acids were synthesized in the same manner as in Synthesis Example 1, but the diamine content was adjusted according to Table 1 below. Afterwards, polyimide was synthesized by additionally stirring at 180°C for 4 hours.
- Polyimides were synthesized in the same manner as in Synthesis Examples 2 to 11, but instead of the compound represented by Formula 1-1, a compound represented by Formula 2-1 was used, and the diamine content was adjusted according to Table 1 below. did.
- Polyimides were synthesized in the same manner as in Synthesis Examples 2 to 11, but instead of the compound represented by Formula 1-1, a compound represented by Formula 3-1 was used, and the diamine content was adjusted according to Table 1 below. did.
- Polyimides were synthesized in the same manner as in Synthesis Examples 2 to 11, but instead of the compound represented by Formula 1-1, a compound represented by Formula 4-1 was used, and the diamine content was adjusted according to Table 1 below. did.
- Synthesis Examples 42 and 43 were synthesized in the same manner as Synthesis Example 6, Synthesis Examples 44 and 45 were synthesized in the same manner as Synthesis Example 16, Synthesis Examples 46 and 47 were synthesized in the same manner as Synthesis Example 26, and Synthesis Examples 48 and 49 were synthesized in the same manner as Synthesis Example 36.
- Polyimides were synthesized in the same manner as in Synthesis Examples 2 to 11, but instead of the compound represented by Formula 1-1, a compound represented by Formula 5-1 below, a symmetrical structure such as ODA, APB, BAPP, or 6FODA was used. Any one of the diamine compounds was used, and the diamine content was adjusted according to Table 3 below.
- Photosensitive resin compositions containing 25 parts by weight of a compound containing a 5-naphthoquinonediazide sulfonyl group (TPPA) and 20 parts by weight of a crosslinking agent containing an alkoxymethyl group (HMOM-TPHAP) were prepared.
- TPPA 5-naphthoquinonediazide sulfonyl group
- HMOM-TPHAP crosslinking agent containing an alkoxymethyl group
- Photosensitive resin compositions containing 25 parts by weight of a compound containing a 5-naphthoquinonediazide sulfonyl group (THPE) and 20 parts by weight of a crosslinking agent containing an epoxy group (Epiclon HP-820) were prepared.
- THPE 5-naphthoquinonediazide sulfonyl group
- Epiclon HP-820 a crosslinking agent containing an epoxy group
- Photosensitive resin compositions containing 25 parts by weight of a compound containing a 5-naphthoquinonediazide sulfonyl group (TPPA) and 20 parts by weight of a crosslinking agent containing an alkoxymethyl group (HMOM-TPHAP) were prepared.
- TPPA 5-naphthoquinonediazide sulfonyl group
- HMOM-TPHAP crosslinking agent containing an alkoxymethyl group
- a vacuum dry process was performed at a pressure of 40 Pa, and then dried at 120°C.
- a pre-cured film with a thickness of 3.0 ⁇ m was formed by pre-baking on a hot plate for 2 minutes.
- the sensitivity is less than 100 mJ/cm 2 , it is 'O', if the sensitivity is 100 to 150 mJ/cm 2 , it is ' ⁇ ', and if it is 150 mJ/cm 2 or more, it is 'X'. indicated.
- the cured film was immersed in the evaluation solvent at 25°C for 120 seconds, and the thickness change rate of the cured film before and after immersion was measured.
- the evaluation solvent is a mixture of propylene glycol methyl ether and propylene glycol methyl ether acetate in a molar ratio of 7:3.
- the thickness change rate of the cured film is 200 ⁇ or less, ' ⁇ '; if it is more than 200 and 300 ⁇ or less, 'O'; ' ⁇ ' if it is greater than 300 and less than or equal to 500 ⁇ ; If it exceeds 500 ⁇ , it is indicated as 'X' in Tables 4 and 5 below.
- Adhesion according to bake temperature was compared based on the case where the line width and slit width of 10 ⁇ m were 1:1 in the cured film formed during the sensitivity evaluation.
- the case where adhesion is secured at prebake 90°C to 120°C is O
- the case where adhesion is secured at prebake 125 to 130°C is denoted as ⁇
- the case where adhesion is secured or not secured at prebake 130°C or higher is denoted as X. indicated.
- a pattern film is formed on an ITO (indium tin oxide) substrate (anode electrode) as in the sensitivity analysis method, and then an organic light-emitting layer is deposited.
- an encapsulation process was performed to manufacture an OLED device. Based on 85°C and 85% R.H., the time (T97) for the luminance to decrease by 3% when the OLED device is turned on was evaluated. Tables 4 and 5 below indicate ' ⁇ ' when secured for more than 1000 hours, 'O' when secured between 500 and less than 1000 hours, ' ⁇ ' when secured between 200 and less than 500 hours, and 'X' when secured for less than 200 hours.
- the imide ratio at cure was assumed to be 100% and the imide ratio at cure at 250°C was calculated. As a result of the evaluation, if the imide rate was less than 51%, it was indicated as ⁇ , and if it was more than 51%, it was indicated as ⁇ in Tables 4 and 5 below.
- Example 1 O ⁇ O X O X ⁇ Comparative Example 1 ⁇ O O ⁇ O ⁇ ⁇ Example 2 ⁇ O O ⁇ O ⁇ ⁇ Example 3 ⁇ O O ⁇ O ⁇ ⁇ Example 4 O O O O O O ⁇ Example 5 O O O O O O ⁇ Example 6 O O O O O O ⁇ Example 7 O O O O O ⁇ Example 8 O O O O O O ⁇ Example 9 O O O O O O ⁇ Example 10 O ⁇ O O O O O ⁇ Example 11 O ⁇ O O O O O ⁇ Example 12 O O O ⁇ O ⁇ ⁇ Example 13 O O O ⁇ O ⁇ ⁇ Example 14 ⁇ O O O O O ⁇ Example 15 ⁇ O O O O O ⁇ Example 16 ⁇ O O O O O ⁇ Example 17 ⁇ O O O O O ⁇ Example 18 ⁇ O O O O O ⁇ Example 19 ⁇ O
- Examples 2 to 49 have the same or improved sensitivity performance, flexibility, or device reliability compared to the Comparative Example.
- Example 1 when the imidization index exceeds 50%, the flexibility, sensitivity, chemical resistance, and reliability performance of the device are overall improved.
- various embodiments of the present invention include the molecular structure represented by General Formula 3 as a matrix, thereby forming an intermolecular hydrogen bond and forming a free volume corresponding to the free space between atoms. It can be inferred that volume can be increased. Accordingly, it is possible to provide a photosensitive resin composition that improves the flexibility of the device and has excellent chemical resistance, sensitivity performance, adhesion, and device reliability.
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Abstract
Description
| No. | Diamine(mol) | Dianhydride (mol) |
Anhydride (mol) |
비고 | ||||
| Bis-APAF | 비대칭(P)1) | 비대칭(M)2) | 비대칭 헤테로3) | 대칭 헤테로4) | ODPA5) | PA6) | ||
| 합성예1 | 70 | 30 | 68 | 64 | 폴리이미드 전구체 | |||
| 비교합성예 1 | 100 | 0 | 68 | 64 | ||||
| 합성예 2 | 90 | 10 | 68 | 64 | ||||
| 합성예 3 | 80 | 20 | 68 | 64 | ||||
| 합성예4 | 70 | 30 | 68 | 64 | ||||
| 합성예5 | 60 | 40 | 68 | 64 | ||||
| 합성예6 | 50 | 50 | 68 | 64 | ||||
| 합성예7 | 40 | 60 | 68 | 64 | ||||
| 합성예8 | 30 | 70 | 68 | 64 | ||||
| 합성예9 | 20 | 80 | 68 | 64 | ||||
| 합성예10 | 10 | 90 | 68 | 64 | ||||
| 합성예11 | 0 | 100 | 68 | 64 | ||||
| 합성예12 | 90 | 10 | 68 | 64 | ||||
| 합성예13 | 80 | 20 | 68 | 64 | ||||
| 합성예14 | 70 | 30 | 68 | 64 | ||||
| 합성예15 | 60 | 40 | 68 | 64 | ||||
| 합성예16 | 50 | 50 | 68 | 64 | ||||
| 합성예17 | 40 | 60 | 68 | 64 | ||||
| 합성예18 | 30 | 70 | 68 | 64 | ||||
| 합성예19 | 20 | 80 | 68 | 64 | ||||
| 합성예20 | 10 | 90 | 68 | 64 | ||||
| 합성예21 | 0 | 100 | 68 | 64 | ||||
| 합성예22 | 90 | 10 | 68 | 64 | ||||
| 합성예23 | 80 | 20 | 68 | 64 | ||||
| 합성예24 | 70 | 30 | 68 | 64 | ||||
| 합성예25 | 60 | 40 | 68 | 64 | ||||
| 합성예26 | 50 | 50 | 68 | 64 | ||||
| 합성예27 | 40 | 60 | 68 | 64 | ||||
| 합성예28 | 30 | 70 | 68 | 64 | ||||
| 합성예29 | 20 | 80 | 68 | 64 | ||||
| 합성예30 | 10 | 90 | 68 | 64 | ||||
| 합성예31 | 0 | 100 | 68 | 64 | ||||
| 합성예32 | 90 | 10 | 68 | 64 | ||||
| 합성예33 | 80 | 20 | 68 | 64 | ||||
| 합성예34 | 70 | 30 | 68 | 64 | ||||
| 합성예35 | 60 | 40 | 68 | 64 | ||||
| 합성예36 | 50 | 50 | 68 | 64 | ||||
| 합성예37 | 40 | 60 | 68 | 64 | ||||
| 합성예38 | 30 | 70 | 68 | 64 | ||||
| 합성예39 | 20 | 80 | 68 | 64 | ||||
| 합성예40 | 10 | 90 | 68 | 64 | ||||
| 합성예41 | 0 | 100 | 68 | 64 | ||||
| 1) 상기 화학식 1-1로 표시되는 화합물 2) 상기 화학식 2-1로 표시되는 화합물 3) 상기 화학식 3-1로 표시되는 화합물 4) 상기 화학식 4-1로 표시되는 화합물 5) 4,4'-oxydiphthalic anhydride 6) phthalic anhydride 상기 1) 내지 6)은 하기 표 2에서도 동일하다. |
||||||||
| No. | Diamine(mol) | Dianhydride (mol) |
Anhydride (mol) |
||||
| Bis-APAF | 비대칭(P) | 비대칭(M) | 비대칭 헤테로 | 대칭 헤테로 | ODPA | PA | |
| 합성예42 | 50 | 50 | 68 | 64 | |||
| 합성예43 | 50 | 50 | 68 | 64 | |||
| 합성예44 | 50 | 50 | 68 | 64 | |||
| 합성예45 | 50 | 50 | 68 | 64 | |||
| 합성예46 | 50 | 50 | 68 | 64 | |||
| 합성예47 | 50 | 50 | 68 | 64 | |||
| 합성예48 | 50 | 50 | 68 | 64 | |||
| 합성예49 | 50 | 50 | 68 | 64 | |||
| No. | Diamine(mol) | Dianhydride (mol) |
Anhydride (mol) |
|||||
| Bis-APAF | 대칭1) | ODA2) | APB3) | BAPP4) | 6FODA5) | ODPA | PA | |
| 비교합성예 2 | 90 | 10 | 68 | 64 | ||||
| 비교합성예 3 | 80 | 20 | 68 | 64 | ||||
| 비교합성예 4 | 70 | 30 | 68 | 64 | ||||
| 비교합성예 5 | 60 | 40 | 68 | 64 | ||||
| 비교합성예 6 | 50 | 50 | 68 | 64 | ||||
| 비교합성예 7 | 40 | 60 | 68 | 64 | ||||
| 비교합성예 8 | 30 | 70 | 68 | 64 | ||||
| 비교합성예 9 | 20 | 80 | 68 | 64 | ||||
| 비교합성예 10 | 10 | 90 | 68 | 64 | ||||
| 비교합성예 11 | 0 | 100 | 68 | 64 | ||||
| 비교합성예 12 | 50 | 50 | 68 | 64 | ||||
| 비교합성예 13 | 50 | 50 | 68 | 64 | ||||
| 비교합성예 14 | 50 | 50 | 68 | 64 | ||||
| 비교합성예 15 | 50 | 50 | 68 | 64 | ||||
| 1) 상기 화학식 5-1로 표시되는 화합물 2) 4,4'-Oxydianiline 3) 1,3-Bis(3-aminophenoxy)benzene 4) 2,2-Bis [4-(4-aminophenoxy)phenyl] propane 5) 2,2'-Bis(trifluoromethyl)-4,4'- diaminodiphenyl ether |
||||||||
| 시료 | 물성 | 이미드화 지수 |
|||||
| Folding & Crack (Flexibility) |
감도 | 스컴 | 내화학성 | 접착력 | OLED 신뢰성 | ||
| 실시예 1 | O | Δ | O | X | O | X | < |
| 비교예 1 | Δ | O | O | Δ | O | Δ | ≥ |
| 실시예 2 | Δ | O | O | Δ | O | Δ | ≥ |
| 실시예3 | Δ | O | O | Δ | O | Δ | ≥ |
| 실시예4 | O | O | O | O | O | O | ≥ |
| 실시예5 | O | O | O | O | O | O | ≥ |
| 실시예6 | O | O | O | O | O | O | ≥ |
| 실시예7 | O | O | O | O | O | O | ≥ |
| 실시예8 | O | O | O | O | O | O | ≥ |
| 실시예9 | O | O | O | O | O | O | ≥ |
| 실시예10 | O | Δ | O | O | O | O | ≥ |
| 실시예11 | O | Δ | O | O | O | O | ≥ |
| 실시예12 | O | O | O | Δ | O | Δ | ≥ |
| 실시예13 | O | O | O | Δ | O | Δ | ≥ |
| 실시예14 | ◎ | O | O | O | O | O | ≥ |
| 실시예15 | ◎ | O | O | O | O | O | ≥ |
| 실시예16 | ◎ | O | O | O | O | O | ≥ |
| 실시예17 | ◎ | O | O | O | O | O | ≥ |
| 실시예18 | ◎ | O | O | O | O | O | ≥ |
| 실시예19 | ◎ | O | O | O | O | O | ≥ |
| 실시예20 | ◎ | Δ | O | O | O | O | ≥ |
| 실시예21 | ◎ | Δ | O | O | O | O | ≥ |
| 실시예22 | O | O | O | O | O | O | ≥ |
| 실시예23 | O | O | O | O | O | O | ≥ |
| 실시예24 | ◎ | O | O | ◎ | O | ◎ | ≥ |
| 실시예25 | ◎ | O | O | ◎ | O | ◎ | ≥ |
| 실시예26 | ◎ | O | O | ◎ | O | ◎ | ≥ |
| 실시예27 | ◎ | O | O | ◎ | O | ◎ | ≥ |
| 실시예28 | ◎ | O | O | ◎ | O | ◎ | ≥ |
| 실시예29 | ◎ | O | O | ◎ | O | ◎ | ≥ |
| 실시예30 | ◎ | Δ | O | ◎ | O | ◎ | ≥ |
| 실시예31 | ◎ | Δ | O | ◎ | O | ◎ | ≥ |
| 실시예32 | O | O | O | O | O | O | ≥ |
| 실시예33 | O | O | O | O | O | O | ≥ |
| 실시예34 | ◎ | O | O | ◎ | O | ◎ | ≥ |
| 실시예35 | ◎ | O | O | ◎ | O | ◎ | ≥ |
| 실시예36 | ◎ | O | O | ◎ | O | ◎ | ≥ |
| 실시예37 | ◎ | O | O | ◎ | O | ◎ | ≥ |
| 실시예38 | ◎ | O | O | ◎ | O | ◎ | ≥ |
| 실시예39 | ◎ | O | O | ◎ | O | ◎ | ≥ |
| 실시예40 | ◎ | Δ | O | ◎ | O | ◎ | ≥ |
| 실시예41 | ◎ | Δ | O | ◎ | O | ◎ | ≥ |
| 실시예42 | O | O | O | O | O | O | ≥ |
| 실시예43 | O | O | O | O | O | O | ≥ |
| 실시예44 | ◎ | O | O | O | O | O | ≥ |
| 실시예45 | ◎ | O | O | O | O | O | ≥ |
| 실시예46 | ◎ | O | O | ◎ | O | ◎ | ≥ |
| 실시예47 | ◎ | O | O | ◎ | O | ◎ | ≥ |
| 실시예48 | ◎ | O | O | ◎ | O | ◎ | ≥ |
| 실시예49 | ◎ | O | O | ◎ | O | ◎ | ≥ |
| 시료 | 물성 | 이미드화 지수 |
|||||
| Folding & Crack (Flexibility) |
감도 | 스컴 | 내화학성 | 접착력 | OLED 신뢰성 | ||
| 비교예 2 | O | X | O | O | O | O | ≥ |
| 비교예3 | O | X | O | O | O | O | ≥ |
| 비교예4 | ◎ | X | O | ◎ | O | ◎ | ≥ |
| 비교예5 | ◎ | X | O | ◎ | O | ◎ | ≥ |
| 비교예6 | ◎ | X | O | ◎ | O | ◎ | ≥ |
| 비교예7 | ◎ | X | O | ◎ | O | ◎ | ≥ |
| 비교예8 | ◎ | X | O | ◎ | O | ◎ | ≥ |
| 비교예9 | ◎ | X | O | ◎ | O | ◎ | ≥ |
| 비교예10 | ◎ | X | X | ◎ | O | ◎ | ≥ |
| 비교예11 | ◎ | X | X | ◎ | O | ◎ | ≥ |
| 비교예12 | Δ | O | O | Δ | O | Δ | ≥ |
| 비교예13 | Δ | O | O | Δ | O | Δ | ≥ |
| 비교예14 | Δ | O | O | Δ | O | Δ | ≥ |
| 비교예15 | Δ | O | O | Δ | O | Δ | ≥ |
Claims (14)
- 하기 일반식 1 또는 2로 표시되는 반복단위를 포함하는 알칼리 가용성 수지;감광제; 및용매를 포함하고,하기 일반식 1 및 2에서 R1 및 R2 중 적어도 어느 하나는,하기 일반식 3으로 표시되는 분자구조를 포함하는,감광성 수지 조성물:[일반식 1][일반식 2][일반식 3](C1)o-(B)p-(A)-(B)q-(C2)r상기 일반식 1 및 2에서,R1은 2개 이상의 탄소 원자를 갖는 2가 내지 8가 유기기이고, R2는 2개 이상의 탄소 원자를 갖는 2가 내지 6가 유기기이며, R3 및 R4는 각각 독립적으로 수소원자 또는 탄소수 1 내지 20의 유기기이고, a 및 b는 각각 독립적으로 0 내지 4이고, c 및 d는 각각 독립적으로 0 내지 2 이며, a+b는 1 이상이고, m, n은 각각 일반식 1 및 2의 0 내지 100의 몰%를 나타내며, m+n=100몰%이고,상기 일반식 3에서,A는 불소원자, 산소원자, 황원자 및 수산기 중 적어도 어느 하나 이상을 포함하는 방향족 유기기이며, B는 아마이드기(CONH)이고, C1 및 C2는 각각 독립적으로 치환 또는 비치환된 탄소 수 6 내지 12의 아릴기; 또는 치환 또는 비치환된 탄소 수 5 내지 12의 헤테로아릴기;이며, C1 및 C2는 서로 분자구조가 동일하거나 상이하고, C1 및 C2가 서로 분자구조가 동일할 때 C1 및 C2는 헤테로원자를 포함하고, o는 0 내지 2의 정수이고, p는 0 또는 1이고, q는 0 또는 1이고, r은 0 내지 2의 정수이고, p+q는 1 이상의 정수이고, o+r은 1 이상의 정수이다.
- 제1항에 있어서,상기 일반식 3에서,A는 상기 불소원자 및 수산기를 포함하는 방향족 유기기인,감광성 수지 조성물.
- 제1항에 있어서,하기 일반식 1 및 2에서 R2는,상기 일반식 3으로 표시되는 분자구조를 포함하는감광성 수지 조성물.
- 제1항에 있어서,상기 일반식 3에서,상기 헤테로아릴기는, 질소원자 또는 황원자를 포함하는감광성 수지 조성물.
- 제1항에 있어서상기 일반식 2에서 n은 50 몰%를 초과하는감광성 수지 조성물.
- 제1항에 있어서,상기 알칼리 가용성 수지의 전체 단량체를 기준으로, 상기 일반식 3으로 표시되는 분자구조는 5 내지 100몰%로 포함되는,감광성 수지 조성물.
- 제1항에 있어서,상기 알칼리 가용성 수지의 디아민 단량체를 기준으로 상기 일반식 3으로 표시되는 분자구조는 30 내지 80몰%로 포함되는,감광성 수지 조성물.
- 제1항에 있어서,상기 감광제는,에스테르화된 퀴논디아지드계 화합물을 포함하고,상기 에스테르화된 퀴논디아지드계 화합물은 모체(ballast)로 페놀 구조를 포함하는,감광성 수지 조성물.
- 제1항에 있어서,첨가제를 더 포함하고,상기 첨가제는,가교제, 열산 발생제, UV 흡수제 및 이들의 혼합물로 이루어진 군에서 선택된 어느 하나인,감광성 수지 조성물.
- 제1항에 있어서,상기 치환된 탄소 수 6 내지 12의 아릴기는,탄소 수 6 내지 12의 아릴기에 결합된 적어도 어느 하나의 수소원자가 알킬기, 할로겐원자, 또는 알콕시기로 대체된 구조를 포함하고,상기 치환된 탄소 수 5 내지 12의 헤테로아릴기는,탄소 수 5 내지 12의 헤테로아릴기에 결합된 적어도 어느 하나의 수소원자가 알킬기, 할로겐원자, 또는 알콕시기로 대체된 구조를 포함하는,감광성 수지 조성물.
- 제1항 내지 제12항 중 어느 한 항에 따른 감광성 수지 조성물이 경화된 경화막.
- 제13항에 따른 경화막을 포함하는 표시장치.
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| KR20150097578A (ko) * | 2012-12-20 | 2015-08-26 | 도레이 카부시키가이샤 | 감광성 수지 조성물, 내열성 수지막의 제조 방법 및 표시 장치 |
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| JP2018111773A (ja) * | 2017-01-12 | 2018-07-19 | 東レ株式会社 | 樹脂組成物 |
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- 2023-05-18 JP JP2025501814A patent/JP2025523111A/ja active Pending
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| KR20040087918A (ko) * | 2003-04-07 | 2004-10-15 | 도레이 가부시끼가이샤 | 포지티브형 감광성 수지 조성물 |
| KR20150097578A (ko) * | 2012-12-20 | 2015-08-26 | 도레이 카부시키가이샤 | 감광성 수지 조성물, 내열성 수지막의 제조 방법 및 표시 장치 |
| WO2015137281A1 (ja) * | 2014-03-14 | 2015-09-17 | 東レ株式会社 | 感光性樹脂組成物 |
| WO2018029746A1 (ja) * | 2016-08-08 | 2018-02-15 | 東レ株式会社 | ジアミン化合物、それを用いた耐熱性樹脂または耐熱性樹脂前駆体 |
| JP2018111773A (ja) * | 2017-01-12 | 2018-07-19 | 東レ株式会社 | 樹脂組成物 |
Also Published As
| Publication number | Publication date |
|---|---|
| TW202406985A (zh) | 2024-02-16 |
| CN119547017A (zh) | 2025-02-28 |
| KR20240009689A (ko) | 2024-01-23 |
| JP2025523111A (ja) | 2025-07-17 |
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