WO2017171272A1 - Filtre coloré et dispositif d'affichage d'images le comprenant - Google Patents

Filtre coloré et dispositif d'affichage d'images le comprenant Download PDF

Info

Publication number
WO2017171272A1
WO2017171272A1 PCT/KR2017/002755 KR2017002755W WO2017171272A1 WO 2017171272 A1 WO2017171272 A1 WO 2017171272A1 KR 2017002755 W KR2017002755 W KR 2017002755W WO 2017171272 A1 WO2017171272 A1 WO 2017171272A1
Authority
WO
WIPO (PCT)
Prior art keywords
group
layer
formula
color filter
protective layer
Prior art date
Application number
PCT/KR2017/002755
Other languages
English (en)
Korean (ko)
Inventor
박승준
박성환
송선영
Original Assignee
동우화인켐 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 동우화인켐 주식회사 filed Critical 동우화인켐 주식회사
Publication of WO2017171272A1 publication Critical patent/WO2017171272A1/fr

Links

Images

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/04—Homopolymers or copolymers of esters
    • C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
    • C08L33/08—Homopolymers or copolymers of acrylic acid esters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L41/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a bond to sulfur or by a heterocyclic ring containing sulfur; Compositions of derivatives of such polymers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
    • G01J3/50—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors
    • G01J3/51—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors using colour filters
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
    • G02B1/14—Protective coatings, e.g. hard coatings
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors

Definitions

  • the present invention relates to a color filter and an image display device including the same.
  • LCDs liquid-crystal displays
  • OLEDs organic light-emitting diodes
  • the liquid crystal display uses a color filter for color implementation.
  • the color filter used is a black matrix formed on a glass substrate, and a red, green, blue, and white pattern is formed on the black matrix.
  • Korean Patent Publication No. 2014-0089767 discloses a flexible liquid crystal display and a method of manufacturing the same.
  • An object of the present invention is to provide a color filter capable of suppressing electrode damage and crack generation during peeling from a carrier substrate through chemical bonding between a separation layer and a protective layer.
  • an object of the present invention is to provide a color filter that can be excellent in interlayer adhesion and excellent flexibility and durability.
  • an object of this invention is to provide the image display apparatus provided with the said color filter.
  • a protective layer disposed on the separation layer
  • a black matrix layer disposed on the protective layer
  • a color filter formed between the separation layer and the protective layer by forming a chemical bond by reacting at least one substituent of alkoxy group having 1 to 5 carbon atoms derived from the separation layer with a hydroxyl group, carboxyl group or amide group derived from the protective layer.
  • the separation layer is formed of a composition for the separation layer comprising a binder resin and a melamine-based curing agent having an alkoxy group having 1 to 5 carbon atoms, color filters.
  • the color filter comprises at least one of the compounds represented by the formula 1 to 6, the color filter:
  • n is an integer of 5 to 20.
  • the binder resin of the separation layer comprises at least one of a polymer comprising a repeating unit represented by the formula (7) or formula (8)
  • the color filter :
  • M is a monomer unit forming the main chain of the homopolymer or copolymer
  • SPCR is a spacer unit
  • Ring A is an unsubstituted or substituted alicyclic hydrocarbon, or an unsubstituted or substituted aromatic ring,
  • Ring B is an unsubstituted or substituted aromatic ring
  • n 0 or 1
  • R 1 is a hydrogen atom or a methyl group
  • R 2 is a phenyl group substituted with a group selected from an alkyl group, an alkoxy group, a cyano group or a halogen atom,
  • Ring C or ring D are each independently, , , , or ego,
  • X 1 to X 38 are each independently a hydrogen atom, an alkyl group, an alkoxy group, a halogen atom or a cyano group,
  • p or q are each independently 1 to 12,
  • the alkyl groups are each independently alkyl having 1 to 12 carbon atoms,
  • the alkoxy groups are each independently alkoxy having 1 to 12 carbon atoms.
  • the color filter comprises 120 to 250% compared to the reaction equivalent of the polymer represented by the formula 7 to 8, the color filter.
  • the protective layer is formed of a composition for forming a protective layer comprising a polymer comprising at least one of a hydroxyl group, a carboxyl group or an amide group, color filter.
  • the polymer of the protective layer comprises a polymer containing at least one of the repeating units represented by the following formula (9) or 10, color filter:
  • R 3 to R 6 is —H n —Y 1 , n is 0 or 1, H is an alkylene or carbonyl group having 1 to 6 carbon atoms, Y 1 is a protic polar group,
  • Y 2 is an alkyl group having 1 to 6 carbon atoms, an aryl group having 6 to 12 carbon atoms or a protonic polar group, Y 2 is a carbon atom 1 It may be substituted with an alkyl group of 4 to 4, or an aryl group of 6 to 12 carbon atoms,
  • R 7 and R 8 are connected to each other to form a 3- or 5-membered heterocycle which may be substituted with an alkyl group having 1 to 4 carbon atoms or an aryl group having 6 to 12 carbon atoms,
  • k is an integer from 0 to 2
  • h is an integer from 0 to 2
  • Each said protonic polar group is independently a hydroxyl group, a carboxyl group or an amide group).
  • the weight average molecular weight of the polymer included in the protective layer is 1,000 to 1,000,000, color filters.
  • the image display device comprising the color filter of any one of the above 1 to 8.
  • the color filter of the present invention can suppress chemical damage and crack generation during peeling from the carrier substrate by forming a chemical bond between the separation layer and the protective layer.
  • the color filter of the present invention can implement excellent flexibility and durability excellent in interlayer adhesion.
  • the color filter of the present invention may be excellent in the external light reflection prevention effect.
  • FIG. 1 is a cross-sectional view illustrating a flexible color filter according to an embodiment of the present invention.
  • the present invention relates to a color filter 100 and an image display apparatus including the same, and more particularly, a separation layer 105; A protective layer 107 disposed on the separation layer 105; A black matrix layer 113 disposed on the protective layer 107; And a pixel layer 109 formed between the black matrix layers 113, and between the separation layer 105 and the protective layer 107 to protect alkoxy groups having 1 to 5 carbon atoms derived from the separation layer 105.
  • the color filter 100 of the present invention may be excellent in preventing external light reflection.
  • the external light reaches the color filter 100, the light of the color corresponding to the predetermined pixel is transmitted and the wavelength of the light of the remaining color except the light of the corresponding color is absorbed, thereby effectively reducing the incident light amount of the external light.
  • FIG. 1 is a cross-sectional view showing a color filter 100 according to an embodiment of the present invention.
  • the color filter 100 may include a separation layer 105; A protective layer 107 disposed on the separation layer 105; The pixel layer 109 is formed between the black matrix layer 113 and the black matrix layer 113 disposed on the passivation layer 107.
  • a manufacturing process is performed on the carrier substrate 115, and the manufactured laminate is manufactured by separating the prepared laminate from the carrier substrate 115, and the separation layer 105 is formed by the carrier substrate 115. Is a layer formed for separation.
  • the isolation layer 105 is a layer that protects the pixel layer 109 by covering the pixel layer 109 without being removed after separation from the carrier substrate 115.
  • the separation layer 105 may be formed of a separation layer composition comprising a binder resin and a melamine-based curing agent having an alkoxy group having 1 to 5 carbon atoms.
  • the above-described melamine-based curing agent is used for the separation layer 105, thereby forming a chemical bond with the protective layer 107 described later to prevent pixel damage and crack generation during peeling from the carrier substrate 115. It can be suppressed.
  • the melamine curing agent according to the present invention is not particularly limited as long as it has an alkoxy group having 1 to 5 carbon atoms, and preferably may include at least one of compounds represented by the following Chemical Formulas 1 to 6 below.
  • composition for forming a separation layer according to the present invention may further include at least one of a polymer containing a repeating unit represented by the formula (7) or (8).
  • M is a monomer unit forming the main chain of the homopolymer or copolymer
  • SPCR is a spacer unit
  • Ring A is an unsubstituted or substituted alicyclic hydrocarbon, or an unsubstituted or substituted aromatic ring,
  • Ring B is an unsubstituted or substituted aromatic ring
  • n 0 or 1
  • R 1 is a hydrogen atom or a methyl group
  • R 2 is a phenyl group substituted with a group selected from an alkyl group, an alkoxy group, a cyano group or a halogen atom,
  • Ring C or ring D are each independently, , , , or ego,
  • X 1 to X 38 are each independently a hydrogen atom, an alkyl group, an alkoxy group, a halogen atom or a cyano group,
  • p or q are each independently 1 to 12,
  • the alkyl groups are each independently alkyl having 1 to 12 carbon atoms,
  • the alkoxy groups are each independently alkoxy having 1 to 12 carbon atoms.
  • M is a monomer unit that forms the main chain of the homopolymer or copolymer, and generally, any monomer unit can be suitably used as long as it is a monomer unit used in this field.
  • any monomer unit can be suitably used as long as it is a monomer unit used in this field.
  • said monomeric unit For example, acrylate, methacrylate, 2-chloroacrylate, 2-phenylacrylate, acrylamide, methacrylamide, 2-chloroacrylamide, 2-phenylacrylamide, vinyl ether, Styrene derivatives (e.g., ⁇ -methylstyrene, p-styrene sulfonate), maleic acid derivatives (e.g.
  • the polymer formed of the monomer of Formula 7 is a homopolymer
  • the polymer formed of the monomer of Formula 7 is a copolymer
  • the polymer represented by the formula (7) is a copolymer
  • such a copolymer includes any of alternating type, random type, and graft type.
  • acrylates and methacrylates are preferable.
  • SPCR is a spacer unit, and if it is generally used in this field, all can be used suitably.
  • These spacer units include, for example, - (CH 2) u- ( . However, u is any integer of 1 to 12), 1,2-propylene, 1,3-butylene, cyclopentane- 1,2-diyl, cyclopentane-1,3-diyl, cyclohexane-1,3-diyl, cyclohexane-1,4-diyl, piperidine-1,4-diyl, piperazine-1,4- Diyl, 1,2-phenylene, 1,3-phenylene, 1,4-phenylene, and the like.
  • spacer units -(CH 2 ) w- (where w is an integer of 1 to 12) is preferred.
  • w the integer in any one of 3-9 is preferable, Among these, the integer in any one of 5-7 is more preferable, and 6 is the most preferable.
  • Ring A is an unsubstituted or substituted alicyclic hydrocarbon, or an unsubstituted or substituted aromatic ring, of which an unsubstituted or substituted aromatic ring is preferable, and an unsubstituted aromatic ring is more preferable.
  • Ring B is an unsubstituted or substituted aromatic ring, of which an unsubstituted aromatic ring is preferable.
  • Ring A and Ring B are both divalent groups as represented by the general formula (7), but ring A or ring B is "unsubstituted” means that "unsubstituted” is in the number of bonds other than the number of bonds forming these divalent groups. do.
  • ring A and ring B are illustrated by a structural formula, about these bond numbers which form a bivalent group, it is described so that the bond number of a principal chain side may be to the left, and the bond number of the side chain terminal side may be to the right.
  • Substituents (X 1A to X 42A ) of Ring A and substituents (X 1B to X 40B ) of Ring B are each independently a group selected from alkyl, alkoxy, cyano, nitro or halogen atoms, Alkoxy groups are preferred, and X is a nitrogen atom, an oxygen atom or a sulfur atom.
  • Ring A or Ring B as a whole has one or two or more substituents, respectively. The preferred number of substituents for ring A or ring B is 1.
  • the alkyl groups each independently include an alkyl group having 1 to 12 carbon atoms, preferably an alkyl group having 1 to 6 carbon atoms, and more preferably a methyl group.
  • the alkoxy group may each independently include an alkoxy group having 1 to 12 carbon atoms, preferably an alkoxy group having 1 to 6 carbon atoms, and more preferably a methoxy group.
  • the halogen atom include a fluorine atom, a chlorine atom, a bromine atom or an iodine atom, and preferably a fluorine atom.
  • the weight average molecular weight of the binder resin included in the separation layer 105 may be 5,000 to 200,000, preferably 10,000 to 100,000.
  • the melamine-based curing agent of the separation layer 105 according to the present invention may form a chemical bond with the protective layer 107 because there may be an unreacted melamine curing agent even if the binder resin and the theoretical reaction equivalent amount is added.
  • the melamine-based curing agent may be added in excess of the reaction equivalent of the binder resins represented by the formulas (7) to (8) in terms of sufficiently forming a chemical bond with the protective layer 107. have.
  • the melamine-based curing agent that does not react with the binder resin may more easily form a chemical bond with the protective layer 107.
  • the melamine-based curing agent may be included in excess of 120% or more relative to the equivalent of the reaction with the binder resin. In the above range, it is possible to best exhibit the desired effect in the present invention.
  • the melamine-based curing agent may have the desired effect in the present invention as long as it is included in an excessive amount, so the upper limit of the content thereof is not particularly limited. However, considering the economical efficiency, the protective layer 107, the limit of the polymer content, etc., the upper limit may be 250% compared to the reaction equivalent with the binder resin.
  • the coating property may be poor or transmittance may be lowered.
  • 10-1000 nm is preferable and, as for the thickness of the isolation layer 105, it is more preferable that it is 50-500 nm. If the thickness of the separation layer 105 is less than 10 nm, the uniformity during application of the separation layer 105 is poor, the pixel pattern formation is uneven, the peeling force rises locally, and tearing occurs, or separation from the carrier substrate 115 occurs. Thereafter, a curl of the color filter 100 is not controlled. And when the thickness exceeds 1000nm, there is a problem that the peeling force is no longer lowered, there is a problem that the flexibility of the film is lowered.
  • the base film 101 may be attached to the opposite surface of the separation layer 105 in contact with the protective layer 107 through the adhesive layer 103.
  • the base film 101 may be used as an optical transparent film without limitation, but it is preferable to use a film excellent in flexibility, transparency, thermal stability, moisture shielding, retardation uniformity, isotropy, and the like. By using the base film 101, the color filter 100 can be prevented from being damaged during manufacture, transportation and storage and can be easily handled.
  • the material of the base film 101 may be a polymer material or polyethylene terephthalate, polyethylene, polystyrene, polycarbonate, polyimide, or the like that is commonly used.
  • the adhesive layer 103 is for bonding the base film 101 and the separation layer 105 to corona treatment, flame treatment, and plasma treatment to a polarizing film and / or a protective film in order to improve adhesion between the two layers. And surface treatments such as ultraviolet irradiation, primer coating treatment, and saponification treatment can be performed.
  • the adhesive layer 103 may be formed by being applied in the form of a coating composition to one surface of the base film or the separation layer 105 or laminated in a film state.
  • the material of the adhesive layer 103 is not particularly limited in the present invention, and may be a polyacrylate, an epoxy resin, or the like.
  • the protective layer 107 is disposed on the separation layer 105, and covers the pixel layer 109 like the separation layer 105 to contaminate the pixel layer 109 and to separate the pixel layer from the carrier substrate 115. It serves to prevent breakage of 109.
  • the protective layer 107 according to the present invention may be formed of a protective layer-forming composition including a polymer including at least one of a hydroxyl group, a carboxyl group, and an amide group.
  • the present invention by using the above-described polymer in the protective layer 107, by forming a chemical bond with the alkoxy group included in the melamine-based curing agent of the separation layer 105, it is possible to implement excellent flexibility and durability with excellent interlayer adhesion.
  • the hydrogen is removed from the water by removing the hydrogen of the alkoxy group contained in the melamine curing agent and the hydroxyl group of the hydroxyl group, carboxyl group, or amide group contained in the polymer of the protective layer 107 under the hydrolysis condition.
  • the polymer of the protective layer 107 is chemically bonded to provide excellent adhesion between the separation layer 105 and the protective layer 107, thereby preventing pixel damage and cracking during peeling on the carrier substrate 115.
  • the polymer of the protective layer 107 according to the present invention may include a polymer including at least one of the repeating units represented by the following formula (9) or (10):
  • R 3 to R 6 is —H n —Y 1 , n is 0 or 1, H is an alkylene or carbonyl group having 1 to 6 carbon atoms, Y 1 is a protic polar group,
  • Y 2 is an alkyl group having 1 to 6 carbon atoms, an aryl group having 6 to 12 carbon atoms or a protonic polar group, Y 2 is a carbon atom 1 It may be substituted with an alkyl group of 4 to 4, or an aryl group of 6 to 12 carbon atoms,
  • R 7 and R 8 are connected to each other to form a 3- or 5-membered heterocycle which may be substituted with an alkyl group having 1 to 4 carbon atoms, an aryl group having 6 to 12 carbon atoms, and
  • k is an integer from 0 to 2
  • h is an integer from 0 to 2
  • Each said protonic polar group is independently a hydroxyl group, a carboxyl group or an amide group).
  • the heterocyclic ring means a ring having at least one hetero atom (N, O, P, S, etc.) in the ring as a cyclic structure.
  • examples of the three-membered heterocyclic structure which R 7 and R 8 can form include an epoxy structure and the like.
  • R ⁇ 7> and R ⁇ 8> is a 5-membered heterocyclic structure, for example, a dicarboxylic acid anhydride structure [-C (O) -OC (O)-], a dicarboxyimide structure [-C (O) -NC (O)- ] Etc. can be mentioned.
  • the polymer having a repeating unit represented by Formula 9 or 10 according to the present invention has a high glass transition temperature.
  • the temperature may be 100 ° C or higher, preferably 150 ° C or higher, more preferably 200 ° C or higher, and most preferably 250 ° C or higher.
  • the protective layer 107 including the same has a high heat resistance, wrinkles, cracks, which may occur during the heat treatment process during the formation of the black matrix layer 113, the pixel layer 109, etc. Heat damage such as color change can be suppressed.
  • the protective layer 107 according to the present invention is a cured layer of a polymer having a repeating unit represented by the formula (9) or (10), and has excellent elasticity to reduce cracks that may occur when peeling from the carrier substrate 115. .
  • the elasticity of the protective layer 107 may be, for example, an elastic modulus of 2.8 to 4.5 GPa. If the modulus of elasticity is less than 2.8 GPa, wrinkles may occur in the insulating layer at the time of pixel formation, and if it is more than 4.5 GPa, cracks may occur during peeling from the carrier substrate 115.
  • the modulus of elasticity in the above range can be obtained, for example, by setting the postbaking temperature to 180 ° C or higher. It may be preferably from 3 to 4.2 GPa in terms of satisfying both an excellent level of the anti-wrinkle effect and the anti-peel effect.
  • the protective layer 107 according to the present invention has a very high transmittance.
  • the transmittance may be at least 90%, preferably at least 95%, more preferably at least 97%.
  • the transmittance in the above range can be obtained by, for example, performing a postbaking at 180 ° C to 250 ° C.
  • the polymer including at least one of the repeating units represented by Formula 9 or 10 according to the present invention is a protonic polar group-containing cyclic olefin polymer.
  • the protonic polar group is an atomic group in which hydrogen atoms are directly bonded to atoms other than carbon atoms.
  • Specific examples of the protonic polar group include a hydroxyl group, a carboxyl group or an amide group, and more preferably a carboxyl group.
  • the weight average molecular weight (Mw) of the polymer of the protective layer 107 according to the present invention is usually in the range of 1,000 to 1,000,000, preferably 5,000 to 150,000, more preferably 2,000 to 10,000.
  • resin components other than the cyclic olefin polymer, solvents, crosslinking agents, other compounding agents, etc. may be used as long as the expression of the desired effect of the present invention is not impaired. It may also contain components.
  • resin components other than the cyclic olefin polymers include styrene resins, vinyl chloride resins, acrylic resins, polyphenylene ether resins, polyarylene sulfide resins, polycarbonate resins, polyester resins, polyamide resins, and polyethers.
  • styrene resins vinyl chloride resins
  • acrylic resins polyphenylene ether resins
  • polyarylene sulfide resins polycarbonate resins
  • polyester resins polyamide resins
  • polyethers polyethers.
  • Tersulfone resin, polysulfone resin, polyimide resin, rubber, elastomer and the like are examples of resin components other than the cyclic olefin polymers.
  • the solvent examples include ethylene glycol monoalkyl ethers; Diethylene glycol dialkyl ethers; Ethylene glycol alkyl ether acetates; Alkylene glycol alkyl ether acetates; Propylene glycol monoalkyl ethers; Propylene glycol dialkyl ethers; Propylene glycol alkyl ether propionates; Butyl diol monoalkyl ethers; Butanediol monoalkyl ether acetates; Butanediol monoalkyl ether propionate; Dipropylene glycol dialkyl ethers; Aromatic hydrocarbons; Ketones; Alcohols; Esters; Cyclic esters and the like.
  • the solvent illustrated here can be used individually or in mixture of 2 or more types, respectively.
  • crosslinking agent those having two or more, preferably three or more functional groups in the molecule that can react with the cyclic olefin polymer are used.
  • the functional group of the crosslinking agent is not particularly limited as long as it can react with functional groups, unsaturated bonds, and the like in the cyclic olefin polymer.
  • preferred functional groups that can react with this polar group include, for example, amino groups, carboxyl groups, hydroxyl groups, epoxy groups, isocyanate groups, and more preferably. It is an amino group, an epoxy group, and an isocyanate group, More preferably, it is an epoxy group.
  • Examples of other compounding agents include sensitizers, surfactants, latent acid generators, antistatic agents, antioxidants, adhesion aids, antifoaming agents, pigments, dyes, and the like.
  • the black matrix layer 113 is disposed on the protective layer 107 and is a light shielding layer for reflecting external light and improving contrast ratio.
  • the black matrix layer 113 is positioned between each of the patterned pixels to be described later to block light except for the pixel region. do.
  • the black matrix layer 113 may be a composition for forming a black matrix layer known in the art without limitation, and for example, black including an alkali-soluble binder resin, a photopolymerizable compound, a photopolymerization initiator, a black pigment, and a solvent. It can be formed from the composition for forming a matrix layer.
  • the black matrix layer 113 may be formed using a method known in the art. For example, it may be formed by applying the composition for forming the black matrix layer and exposing, developing, and curing the pattern.
  • Pixel layer 109 Pixel layer 109
  • the pixel layer 109 is formed between the black matrix layers 113 to implement color, and includes red, green, blue, and white patterns.
  • the black matrix layer 113 described above is disposed together with the patterned red, green, blue, and white pixel layers 109.
  • Red is implemented in the red subpixel, green in the green subpixel, and blue in the blue subpixel.
  • the pixel layer 109 may be used without limitation for a pixel layer forming composition known in the art, and is formed by coating each pixel layer forming composition for color expression and exposing, developing and thermosetting in a predetermined pattern. can do.
  • a planarization layer may be further provided on the pixel layer 109 to correct the level difference of the pixel layer 109 and to improve flatness. Also called overcoating layer (OC layer)
  • the material of the planarization layer 111 is not particularly limited in the present invention, and may be polyacrylate, polyimide, polyester, or the like that is commonly used.
  • the flexible color filter 100 comprises the steps of forming a separation layer 105 by coating a composition for forming a separation layer on the carrier substrate 115; Forming a protective layer 107 to coat the composition for forming a protective layer on the separation layer 105 to cover the side of the separation layer 105; Forming a black matrix layer 113 on the passivation layer 107, and forming a red, green, blue, and white pixel layer 109 therebetween; Forming a planarization layer 111 by coating a composition for forming a planarization layer over the entire pixel layer 109; Bonding the protective film 119 coated on one side of the adhesive layer 117 to the planarization layer 111; Separating the carrier substrate 115 and the separation layer 105; Bonding the base film 101 coated on one side of the adhesive layer 103 to the separation layer; And removing the protective film 119 and the pressure-sensitive adhesive layer 117.
  • a separation layer 105 is formed by coating a composition for forming a separation layer (see FIG. 2).
  • the coating method may use a conventional wet coating method to obtain a desired thickness, wherein the wet coating method is a roll coater, spin coater, slit and spin coater, slit coater (sometimes referred to as die coater), inkjet, etc.
  • An application device can be used.
  • the separation layer forming composition is cured after coating to form a separation layer (105).
  • the curing step is performed by heating with an oven, a hot plate or the like.
  • the temperature and time may vary depending on the composition, but is made through heat treatment under conditions of 10 to 120 minutes at 80 to 250 °C, for example.
  • a protective layer 107 is formed to coat the composition for forming a protective layer on the formed separation layer 105 to surround the side of the separation layer 105 (see FIG. 3).
  • the separation layer 105 may be peeled off by a physical force, and since the peeling force is very weak, the protective layer 107 should be formed to surround both sides.
  • the coating method and the curing process of the protective layer-forming composition are as described above.
  • a black matrix layer 113 is formed on the formed protective layer 107, and red, green, blue, and white pixel layers 109 are formed therebetween. (See FIGS. 4 and 5).
  • each composition for forming a pixel layer for color expression is applied and exposed, developed and thermally cured in a predetermined pattern.
  • the order of the colors of the pixel layer 109 may be arbitrarily selected.
  • the black matrix layer 113 and the pixel layer 109 may be changed according to the purpose of forming the above.
  • the coating method and the curing process of the black matrix layer 113 and the pixel layer 109 are as described above.
  • planarization layer forming composition is coated on the entire formed pixel layer 109 to form the planarization layer 111 (see FIG. 6).
  • the planarization layer 111 is formed on the entire surface of the pixel layer 109 to protect the patterned pixel layer 109 and to planarize the surface of the color filter 100 when forming the pixel electrode.
  • the planarization layer 111 coating method and the curing process are as described above.
  • the protective film 119 coated on one side of the adhesive layer 117 is bonded to the planarization layer 111 (see FIG. 7).
  • the protective film 119 uses a material whose physical properties are controlled to have appropriate mechanical strength, thermal stability, moisture shielding and transparency so as to protect the flexible color filter 100 of the present invention.
  • a material whose physical properties are controlled to have appropriate mechanical strength, thermal stability, moisture shielding and transparency so as to protect the flexible color filter 100 of the present invention.
  • Examples thereof include polyethylene, polypropylene, polystyrene, polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polyetherimide, polyvinyl chloride, and the like.
  • the pressure-sensitive adhesive layer 117 is not particularly limited in the present invention, a composition commonly used in this field is possible. Typically, one selected from the group consisting of acrylic resins, silicone resins, polyesters, polyurethanes, polyamides, polyvinyl ethers, modified polyolefins, vinyl acetate / vinyl chloride copolymers, epoxy, fluorine, rubber, and combinations thereof is used. Can be.
  • the pressure-sensitive adhesive layer 117 may be directly applied to the protective film 119, or may be formed by applying an adhesive sheet to the protective film 119, the thickness of the protective film 119 and the pressure-sensitive adhesive layer 117 is protected It may be adjusted according to the material and adhesive force of the film 119.
  • the carrier substrate 115 and the separation layer 105 are separated (see FIG. 8).
  • the separation layer is peeled off to remove the carrier substrate 115 used to form the color filter 100.
  • the peeling process may be performed at room temperature, and may be performed by, for example, a physical peeling method of removing the carrier substrate 115.
  • the base film 101 coated on one side of the adhesive layer 103 is bonded to the separation layer 105 (see FIG. 9).
  • the base film 101 is flexible and can be selected to suit the desired purpose from the above materials.
  • the adhesive layer 103 is used to bond the base film 101 and the color filter 100, and is disposed on one surface of the base film 101 or the separation layer 105.
  • Usable adhesives are photocurable adhesives and do not require a separate drying process after photocuring, thus simplifying the manufacturing process and improving productivity.
  • the photocurable adhesive used in the present invention may be formed using a photocurable adhesive used in the art without particular limitation.
  • the composition may include an epoxy compound or an acrylic monomer.
  • electron rays, proton rays, neutral magnetic rays, and the like may be used in addition to electromagnetic waves such as ultraviolet rays, ultraviolet rays, near ultraviolet rays, infrared rays, X-rays, and ⁇ -rays. Curing by ultraviolet irradiation is advantageous from the curing rate, the availability of the irradiation apparatus, the price, and the like.
  • a high pressure mercury lamp an electrodeless lamp, an ultra high pressure mercury lamp carbon arc lamp, a xenon lamp, a metal halide lamp, a chemical lamp, a black light, or the like can be used.
  • the color filter 100 including the high temperature process is formed on the carrier substrate 115 and then the carrier substrate 115 is formed using the separation layer 105 at room temperature. Then, the base film 101 of the plastic material is laminated.
  • the color filter 100 not only prevents thermal deformation of the conventional base film 101, but also ensures high reliability because there is no degradation or malfunction of the substrate film 101, and the dimension of the pattern of the color filter 100 is precise and fine. More precise pixels can be realized.
  • various plastic materials may be applied to the base film 101 according to the purpose.
  • the present invention also relates to an image display device having the color filter 100.
  • the image display device of the present invention may be, for example, a liquid crystal display device and an organic light emitting display device (OLED).
  • the image display apparatus may include a configuration known to those skilled in the art except for providing the color filter 100, and is not particularly limited in the present invention.
  • the weight average molecular weight (MW) of the said polymer was measured using gel filtration chromatography (GPC). The obtained weight average molecular weight (MW) was 21,000.
  • the weight average molecular weight (MW) of the polymer obtained above was measured using polystyrene as a standard and gel filtration chromatography (GPC).
  • the polymer obtained above had a weight average molecular weight (MW) of 30,700 and an acid value of 156 mgKOH / g.
  • the amount of 4- [6- (2-methylacryloyloxy) hexyloxy] benzoic acid 4-[(E) -2-methoxycarbonylvinyl] phenyl ester is 8 g (17 mM) and 4- [6- ( 21 g (69 mM) of 2-methylacryloyloxy) hexyloxy] benzoic acid, 0.28 g (1.7 mM) of 2,2'-azobisisobutyronitrile, and 116 g of cyclohexanone Except that, the same treatment as in (1) was carried out to obtain 24 g of a polymer represented by the above formula.
  • the polymer obtained above had a weight average molecular weight (MW) of 31,700 and an acid value of 130 mgKOH / g.
  • the amount of 4- [6- (2-methylacryloyloxy) hexyloxy] benzoic acid 4-[(E) -2-methoxycarbonylvinyl] phenyl ester is 10 g (21 mM), 4- [6- 15.3 g (50 mM) of (2-methylacryloyloxy) hexyloxy] benzoic acid, 0.23 g (1.4 mM) of 2,2'-azobisisobutyronitrile, and cyclohexanone
  • the same procedure as in (1) was carried out except that 101.2 g and normal hexane were used in an amount of 253 g to obtain 24 g of the polymer represented by the above chemical formula.
  • the polymer obtained above had a weight average molecular weight (MW) of 33,300 and an acid value of 110 mgKOH / g.
  • the polymer obtained above had a weight average molecular weight (MW) of 48,200 and an acid value of 132 mgKOH / g.
  • the polymer obtained above had a weight average molecular weight (MW) of 24,800 and an acid value of 135 mgKOH / g.
  • the resin solution (a) was transferred into an autoclave with a stirrer, and reacted for 5 hours at a hydrogen pressure of 4 MPa at a temperature of 150 ° C. for a resin solution (b) containing a hydrogenated resin (99% hydrogen content) (solid content concentration: about 20 %) Was obtained.
  • 100 parts of the resin solution (b) and 1 part of the activated carbon powder were put into an autoclave of a heat resistant agent, and reacted for 3 hours at a temperature of 150 ° C. under a hydrogen pressure of 4 MPa.
  • the reaction solution was filtered through a fluorine resin filter having a pore diameter of 0.2 ⁇ m to separate activated carbon to obtain a resin solution (c-1).
  • Resin (1) Mw of polyisoprene conversion of resin (1) was 5,500 and Mn was 3,200. Moreover, the acid value was 50 mgKOH / g.
  • additive F-554 0.5 parts of DIC company, EPHE-3150CE and 2.5 parts of Dicel company were added as a curing agent, and a protective layer resin composition was prepared so as to have a solid content of 20% to form a protective layer (B- One).
  • a flask equipped with a stirrer, a thermometer reflux condenser, a dropping lot, and a nitrogen inlet tube was prepared, and 80 parts by weight of propylene glycol monomethyl ether acetate (PGMEA) was added and heated to 75 ° C while stirring.
  • PGMEA propylene glycol monomethyl ether acetate
  • a solution of 30 parts by weight of 20 parts by weight of hydroxyethyl (meth) acrylate (HEMA) and 50 parts by weight of vinyltoluene (VT) and 30 parts by weight of methacrylic acid (MAA) was dissolved in 170 parts by weight of PGMEA. .
  • Resin (c-3) was obtained in the same manner as in Synthesis Example 4 except that acrylic acid amide was used instead of 20 parts of hydroxyethyl (meth) acrylate (HEMA), having a solid content of 28.9 wt% and a weight average molecular weight of 25,300.
  • HEMA hydroxyethyl acrylate
  • M9 triazine-based curing agent (MP-triazine (Sanwa Chemical Co., Ltd.))
  • Soda lime glass having a thickness of 700 ⁇ m was used as a carrier substrate, and the separation layer compositions of Examples and Comparative Examples were applied on the carrier substrate at a thickness of 300 nm, and dried at 150 ° C. for 30 minutes to prepare a separation layer. Formed.
  • the protective layer composition was prepared by diluting with a solvent and stirring so that the total solid content was 23% by weight.
  • the prepared composition was applied on the separation layer with a spin coater at a thickness of 2 ⁇ m, and prebaked at 110 ° C. for 2 minutes in a convection oven. Thereafter, a post bake was performed at 230 ° C. for 30 minutes to form a protective layer.
  • a composition for forming a black matrix layer (TBK-04, Dongwoo Fine Chem) was applied to the protective layer, and a pattern was formed. Then, the pixel layer forming composition was formed such that a patterned pixel layer was formed between the black matrix layers.
  • TR-800, YG-800, YB-800, WT-800, Dongwoo Fine Chem were each sequentially applied with a spin coater to a thickness of 1.5 ⁇ m and prebaked at 110 ° C. for 2 minutes in a convection oven. Thereafter, using a pattern mask, after exposing at an exposure dose of 80mJ / cm 2 , it was developed with a JCD 1.0% solution and post-baked at 230 ° C. for 30 minutes to prepare a color filter.
  • a separation layer and a protective layer were formed on the soda lime glass having a thickness of 700 ⁇ m in the same manner as in Examples and Comparative Examples.
  • substrate was drawn 100 spaces in 1 cm X 1 cm space using the ASTM D3359 method, and the tearing evaluation was performed 3 times using adhesive evaluation tapes (3M, 610), and the result is shown to Tables 2-7.
  • a separation layer and a protective layer were formed on the soda lime glass having a thickness of 700 ⁇ m in the same manner as in Examples and Comparative Examples.
  • the transmittance of light at a wavelength of 550 nm of the insulating layer was measured using a spectrophotometer (manufactured by Hitachi Seisakusho, U3210), and the results are shown in Tables 2 to 7.
  • a soda lime glass having a thickness of 700 ⁇ m was formed on the carrier substrate in the same manner as in Examples and Comparative Examples to form a separation layer and a protective layer. Thereafter, immersion in propylene glycol monomethyl ether acetate, and the thickness change before and after the film after heating for 30 minutes at 100 °C was measured, the results are shown in Tables 2 to 7.
  • a soda lime glass having a thickness of 700 ⁇ m was formed on the carrier substrate in the same manner as in Examples and Comparative Examples to form a separation layer and a protective layer. Then, the change in transmittance was measured by performing additional heating at 230 ° C. for 20 minutes, and the results are shown in Tables 2 to 7 below.
  • the color filters of Examples and Comparative Examples were cut to 100 mm x 10 mm, mounted on a bending tester (JIRBT-210, Juniltech), and subjected to 10,000 bends. Then, the cracks of the flexible substrate were visually evaluated. It is described in 2-7.
  • the color filter of the embodiment was excellent in thermal safety, solvent resistance, color filter of the thin film capable of transferring process using an excellent organic thin film without Delami Crack, color filter of the comparative example It can be seen that one or more effects are reduced.

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Nonlinear Science (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optical Filters (AREA)

Abstract

La présente invention concerne un filtre coloré et un dispositif d'affichage d'image le comprenant et, plus spécifiquement, comprend : une couche de séparation ; une couche de protection disposée sur la couche de séparation ; des couches de matrice noire disposées sur la couche de protection ; et une couche de pixels formée entre les couches de matrice noire, un groupe alcoxy en C1-C5, qui est obtenu à partir de la couche de séparation, et au moins un substituant sélectionné parmi un groupe hydroxyle, un groupe carboxylique et un groupe amide, qui sont obtenus à partir de la couche de protection, réagissant l'un avec l'autre pour former une liaison chimique entre la couche de protection et la couche de séparation, de telle sorte que l'apparition de fissure et d'endommagement d'électrode peut être supprimée pendant un délaminage à partir d'un substrat de support, et une force d'adhérence inter-couche est excellente, en obtenant ainsi une excellente flexibilité et une excellente durabilité.
PCT/KR2017/002755 2016-03-31 2017-03-14 Filtre coloré et dispositif d'affichage d'images le comprenant WO2017171272A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020160039205A KR20170112313A (ko) 2016-03-31 2016-03-31 컬러필터 및 이를 포함하는 화상표시장치
KR10-2016-0039205 2016-03-31

Publications (1)

Publication Number Publication Date
WO2017171272A1 true WO2017171272A1 (fr) 2017-10-05

Family

ID=59964900

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2017/002755 WO2017171272A1 (fr) 2016-03-31 2017-03-14 Filtre coloré et dispositif d'affichage d'images le comprenant

Country Status (3)

Country Link
KR (1) KR20170112313A (fr)
TW (1) TW201806749A (fr)
WO (1) WO2017171272A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112114451A (zh) * 2019-06-21 2020-12-22 群创光电股份有限公司 液晶装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI667500B (zh) * 2018-04-03 2019-08-01 友達光電股份有限公司 彩色濾光片、顯示面板及其製造方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000039656A (ko) * 1998-12-15 2000-07-05 김영환 기판 외측에 부착되는 컬러필터를 포함하는 액정표시장치
US20060234035A1 (en) * 2005-04-15 2006-10-19 Eastman Kodak Company Protective cover sheet comprising a UV-absorbing layer for a polarizer plate and method of making the same
JP2009186990A (ja) * 2008-01-10 2009-08-20 Dainippon Printing Co Ltd カラーフィルタ
US20120010350A1 (en) * 2010-07-12 2012-01-12 Lg Chem, Ltd. Thermally curable resin composition for protective film
KR101201387B1 (ko) * 2011-08-08 2012-11-14 주식회사 폴리사이언텍 낮은 열팽창계수를 갖는 환형올레핀계 수지 플렉시블 기판

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000039656A (ko) * 1998-12-15 2000-07-05 김영환 기판 외측에 부착되는 컬러필터를 포함하는 액정표시장치
US20060234035A1 (en) * 2005-04-15 2006-10-19 Eastman Kodak Company Protective cover sheet comprising a UV-absorbing layer for a polarizer plate and method of making the same
JP2009186990A (ja) * 2008-01-10 2009-08-20 Dainippon Printing Co Ltd カラーフィルタ
US20120010350A1 (en) * 2010-07-12 2012-01-12 Lg Chem, Ltd. Thermally curable resin composition for protective film
KR101201387B1 (ko) * 2011-08-08 2012-11-14 주식회사 폴리사이언텍 낮은 열팽창계수를 갖는 환형올레핀계 수지 플렉시블 기판

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112114451A (zh) * 2019-06-21 2020-12-22 群创光电股份有限公司 液晶装置

Also Published As

Publication number Publication date
TW201806749A (zh) 2018-03-01
KR20170112313A (ko) 2017-10-12

Similar Documents

Publication Publication Date Title
WO2018034411A1 (fr) Capteur tactile à film et structure pour capteur tactile à film
WO2017047917A1 (fr) Polyimide modifié et composition de résine durcissable le contenant
WO2017057813A1 (fr) Résine liante et composition de résine photosensible contenant cette dernière
WO2015108386A1 (fr) Nouveau composé de β-ester d'oxime fluorène, amorceur de photopolymérisation comprenant ce composé et composition de résine photosensible
WO2010095905A2 (fr) Résines et adhésifs d'alcool de polyvinyle modifié, polariseur, et afficheur les contenant
WO2017119645A1 (fr) Capteur tactile à pellicule et son procédé de fabrication
WO2016036194A1 (fr) Appareil de commande de lumière, procédé de fabrication d'un appareil de commande de lumière, et appareil d'affichage comprenant un appareil de commande de lumière
WO2017119761A1 (fr) Capteur tactile à pellicule et son procédé de fabrication
WO2016043497A2 (fr) Dispositif de commande de la lumière, procédé de fabrication d'un dispositif de commande de la lumière et dispositif d'affichage comprenant un dispositif de commande de la lumière
WO2021177748A1 (fr) Composé et film optique le comprenant
WO2021154057A1 (fr) Verre ultra-mince pour la protection de la surface d'un écran flexible
WO2017069528A1 (fr) Substrat à fenêtre à plaque de polarisation intégrée et son procédé de fabrication
WO2013069870A1 (fr) Composition adhésive durcie par uv, film adhésif durci par uv la comprenant, dispositif d'affichage la comprenant et procédé d'assemblage de module l'utilisant
WO2017086567A1 (fr) Module de panneau tactile flexible et dispositif d'affichage flexible comprenant celui-ci
WO2017171272A1 (fr) Filtre coloré et dispositif d'affichage d'images le comprenant
WO2018182302A1 (fr) Composition de résine photosensible bleue, et filtre coloré et dispositif d'affichage d'image fabriqués à l'aide de celle-ci
WO2013051831A2 (fr) Composition de formation d'une couche d'alignement et couche d'alignement et film de différence de phase fabriqués à l'aide de celle-ci
WO2019013516A1 (fr) Polariseur circulaire
WO2017119764A1 (fr) Capteur tactile à film et procédé de production associé
WO2014193072A1 (fr) Film optique ayant une excellente fonction de coupure dans l'ultraviolet et plaque polarisante le comprenant
WO2016085087A2 (fr) Composés (méth)acryliques ayant un indice de réfraction élevé, leur procédé de préparation, feuille optique les comprenant, et dispositif d'affichage optique l'utilisant
WO2013055015A1 (fr) Composition adhésive, film adhésif, procédé de production de ladite composition et élément d'affichage utilisant ladite composition
WO2017086590A1 (fr) Procédé de préparation d'élément d'espacement de colonne
WO2020153655A1 (fr) Capteur tactile à film et procédé de production associé
WO2021010700A1 (fr) Composé, composition de résine fluorescente photosensible le comprenant, film de conversion de couleur, unité de rétroéclairage et dispositif d'affichage

Legal Events

Date Code Title Description
NENP Non-entry into the national phase

Ref country code: DE

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17775697

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 17775697

Country of ref document: EP

Kind code of ref document: A1