WO2017171272A1

WO2017171272A1 - Color filter and image display device comprising same

Info

Publication number: WO2017171272A1
Application number: PCT/KR2017/002755
Authority: WO
Inventors: 박승준; 박성환; 송선영
Original assignee: 동우화인켐 주식회사
Priority date: 2016-03-31
Filing date: 2017-03-14
Publication date: 2017-10-05
Also published as: TW201806749A; KR20170112313A

Abstract

The present invention relates to a color filter and an image display device comprising the same and, more specifically, comprises: a separation layer; a protective layer disposed on the separation layer; black matrix layers disposed on the protective layer; and a pixel layer formed between the black matrix layers, wherein a C₁-C₅ alkoxy group, which is derived from the separation layer, and at least one substituent from among a hydroxyl group, a carboxylic group, and an amide group, which are derived from the protective layer, react with each other to form a chemical bond between the protective layer and the separation layer, such that electrode damage and crack occurrence can be suppressed during delamination from a carrier substrate, and an inter-layer adhesive force is excellent, thereby enabling excellent flexibility and durability to be implemented.

Description

Color filter and image display device including the same

The present invention relates to a color filter and an image display device including the same.

As the Internet becomes more popular and the amount of information communicated explosively, the future will create an environment of 'ubiquitous display' where people can access information anytime and anywhere. And the role of portable displays such as PDAs have become important. In order to implement such a ubiquitous display environment, the portability of the display is required to directly access information at a desired time and place, and a large screen characteristic for displaying various multimedia information is required. Accordingly, in order to simultaneously satisfy such portability and large screen characteristics, there is a need to develop a display in a form that can be expanded and used when functioning as a display by giving flexibility to the display and folded and stored when carrying.

Representative forms of flat panel displays that are widely used at present are liquid-crystal displays (LCDs) and organic light-emitting diodes (OLEDs).

The liquid crystal display uses a color filter for color implementation. In this case, 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.

In addition, in recent years, flexible flat panel display devices have been developed, and color filters are also required to have flexible characteristics.

In the case of manufacturing such a flexible color filter, bending is continuously performed or bent during peeling from the carrier substrate, and thus it is necessary to have a characteristic of preventing pixel damage and cracks.

However, there is no situation yet established for a substrate having such sufficient fatigue fracture resistance.

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.

In addition, an object of the present invention is to provide a color filter that can be excellent in interlayer adhesion and excellent flexibility and durability.

Moreover, an object of this invention is to provide the image display apparatus provided with the said color filter.

1. Separation layer;

A protective layer disposed on the separation layer;

A black matrix layer disposed on the protective layer; And

A pixel layer formed between the black matrix layers,

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. .

2. In the above 1, wherein 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.

3. In the above 2, wherein the melamine-based curing agent comprises at least one of the compounds represented by the formula 1 to 6, the color filter:

[Formula 1]

[Formula 2]

[Formula 3]

[Formula 4]

[Formula 5]

[Formula 6]

(Wherein n is an integer of 5 to 20).

4. In the above 2, wherein 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:

[Formula 7]

[Formula 8]

(Wherein, 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,

Z is an alkyl group, alkoxy group, cyano group, nitro group, halogen atom, -CH = CHZ ₁ , -C≡CZ ₁ (wherein Z ₁ is alkyl group, alkoxy group, alkoxy carbonyl group, alkoxy sulfonyl group, cyano group, nitro group Or a halogen atom, -COOZ ₂ or -SO ₃ Z ₂ (where Z ₂ is an alkyl group),

n is 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,

[Revision 16.05.2017 under Rule 91]
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,

T is -CH = CHCOO- (trans) or -N = N-,

p or q are each independently 1 to 12,

m or l is the mole fraction of each monomer in the copolymer that satisfies the relationship of 0.65 ≦ m ≦ 0.95, 0.05 ≦ l ≦ 0.35, m + l = 1,

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.

5. In the above 2, wherein the melamine-based curing agent comprises 120 to 250% compared to the reaction equivalent of the polymer represented by the formula 7 to 8, the color filter.

6. In the above 1, wherein 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.

7. In the above 6, wherein 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:

[Formula 9]

[Formula 10]

Wherein at least one of 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,

Except for the at least one of R ³ to R ⁶ except the at least one is hydrogen or -Hn-Y ₂ , 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).

8. In the above 6, the weight average molecular weight of the polymer included in the protective layer is 1,000 to 1,000,000, color filters.

9. 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.

In addition, the color filter of the present invention can implement excellent flexibility and durability excellent in interlayer adhesion.

In addition, the color filter of the present invention may be excellent in the external light reflection prevention effect.

1 is a cross-sectional view illustrating a flexible color filter according to an embodiment of the present invention.

[Revision 17.05.2017 under Rule 91]
2 to 10 are cross-sectional views for each step according to a method of manufacturing 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. By forming at least one substituent of the hydroxyl group, carboxyl group or amide group derived from the layer 107 reacting with each other to form a chemical bond, it is possible to suppress the occurrence of pixel damage and cracks during peeling from the carrier substrate 115, interlayer Excellent adhesion enables excellent flexibility and durability.

In addition, the color filter 100 of the present invention may be excellent in preventing external light reflection. When 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.

In the present specification, 'upper' and 'lower' are merely expressions used to indicate relative directions in order to facilitate explanation, and do not have any absolute meaning.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the following drawings attached to this specification are illustrative of the preferred embodiments of the present invention, and together with the contents of the above-described invention serves to further understand the technical spirit of the present invention, the present invention described in such drawings It should not be construed as limited to matters.

<컬러필터(100)><Color filter 100>

1 is a cross-sectional view showing a color filter 100 according to an embodiment of the present invention.

Referring to FIG. 1, the color filter 100 according to the present invention 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.

In the color filter 100 of the present invention, 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.

Separation layer (105)

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 according to the present invention 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.

According to the present invention, 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.

[Formula 1]

[Formula 2]

[Formula 3]

[Formula 4]

[Formula 5]

[Formula 6]

In which n = 5-20.

In addition, the 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).

[Formula 7]

[Formula 8]

SPCR is a spacer unit,

Ring B is an unsubstituted or substituted aromatic ring,

n is 0 or 1,

R ¹ is a hydrogen atom or a methyl group,

[Revision 16.05.2017 under Rule 91]
Ring C or ring D are each independently,

,

,

,

or

ego,

T is -CH = CHCOO- (trans) or -N = N-,

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.

In the formula (7), 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. As said monomeric unit, For example, acrylate, methacrylate, 2-chloroacrylate, 2-phenylacrylate, acrylamide, methacrylamide, 2-chloroacrylamide, 2-phenylacrylamide, vinyl ether, Styrene derivatives (e.g., α-methylstyrene, p-styrene sulfonate), maleic acid derivatives (e.g. maleic acid ester, phenylmaleimide, cyclohexyl maleimide), fumaric acid derivatives (e.g. fumaric acid ester) ), Siloxane, and one or more monomer units selected from the group consisting of epoxides. When M is composed of one monomer unit, the polymer formed of the monomer of Formula 7 is a homopolymer, and when M is composed of two or more monomer units, the polymer formed of the monomer of Formula 7 is a copolymer. When the polymer represented by the formula (7) is a copolymer, such a copolymer includes any of alternating type, random type, and graft type. Among these monomer units, 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. Of these spacer units,-(CH ₂ ) w- (where w is an integer of 1 to 12) is preferred. As 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.

[Revision 16.05.2017 under Rule 91]
For example,

,

,

,

,

or

Can be.

Ring B is an unsubstituted or substituted aromatic ring, of which an unsubstituted aromatic ring is preferable.

[Revision 16.05.2017 under Rule 91]
For example,

,

,

,

,

or

Can be.

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. In addition, when 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.

In the general formulas (7) and (8), 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. In addition, 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. Examples of 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.

In another embodiment of the present invention, preferably, 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. As a result, 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.

For example, 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.

When the melamine curing agent is included in excess of 250% of the equivalent of 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.

Protective layer (107)

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.

According to 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.

More specifically, 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. And 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):

[Formula 9]

[Formula 10]

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,

The heterocyclic ring means a ring having at least one hetero atom (N, O, P, S, etc.) in the ring as a cyclic structure.

In the above formula (10), examples of the three-membered heterocyclic structure which R ⁷ and R ⁸ can form include an epoxy structure and the like. In addition, 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. For example, 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. By having a high glass transition temperature as described above, 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.

In addition, the protective layer 107 according to the present invention has a very high transmittance. For example, 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.

In the protective layer 107 composition according to the present invention, 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.

Examples of 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. Tersulfone resin, polysulfone resin, polyimide resin, rubber, elastomer and the like.

Examples of the solvent 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.

As the 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. When the cyclic olefin polymer has a protonic polar group, 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.

Black Matrix Layer (113)

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

The pixel layer 109 is formed between the black matrix layers 113 to implement color, and includes red, green, blue, and white patterns.

In the pixel layer 109, 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.

Planarization layer 111

In the present invention, 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.

Hereinafter, an embodiment of the manufacturing method of the color filter 100 according to the present invention will be described in detail. However, the manufacturing method described below is only one embodiment of the present invention and the present invention should not be construed as being limited thereto.

[Revision 17.05.2017 under Rule 91]
2 to 10 are cross-sectional views for each step according to a method of manufacturing the flexible color filter 100 according to an embodiment of the present invention.

2 to 11, the flexible color filter 100 according to the present invention 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.

Hereinafter, each step will be described in more detail with reference to the accompanying drawings.

First, after the carrier substrate 115 is prepared, 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). At this time, 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 ℃, for example.

Next, 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). As described above, 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.

Next, 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).

After forming the black matrix layer 113 to partition the portion forming the pixel on the protective layer 107, each composition for forming a pixel layer for color expression is applied and exposed, developed and thermally cured in a predetermined pattern. To form. The order of the colors of the pixel layer 109 may be arbitrarily selected. In addition, 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.

Next, the 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.

Next, 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. 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.

Next, 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.

Next, 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. For example, the composition may include an epoxy compound or an acrylic monomer.

In addition, in the photocuring of the adhesive layer 103, 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 γ-rays. Curing by ultraviolet irradiation is advantageous from the curing rate, the availability of the irradiation apparatus, the price, and the like.

As the light source for the ultraviolet irradiation, 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.

[Revision 16.05.2017 under Rule 91]
Next, the protective film 119 and the adhesive layer 117 bonded in FIG. 7 are removed (see FIG. 10).

[Revision 16.05.2017 under Rule 91]
After removing the protective film 119 and the pressure-sensitive adhesive layer 117 bonded in the previous step in order to laminate the touch sensor, the POL integrated touch or window film, the color filter 100 according to the present invention of FIG. 1 may be finally obtained. have.

In the manufacturing process of the color filter 100 according to the present invention, 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.

Accordingly, it is possible not only to solve the problems caused by the thermal deformation of the conventional plastic substrate, but also to fix the pattern that is not realized in the plastic substrate, and to secure an advantage that can be diversified without limiting the material of the base film.

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. In addition, various plastic materials may be applied to the base film 101 according to the purpose.

<화상표시장치><Image display device>

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.

Hereinafter, preferred examples are provided to aid the understanding of the present invention, but these examples are merely illustrative of the present invention and are not intended to limit the scope of the appended claims, which are within the scope and spirit of the present invention. It is apparent to those skilled in the art that various changes and modifications can be made to the present invention, and such modifications and changes belong to the appended claims.

합성예 1. 화학식 7로 표시되는 바인더 수지의 합성Synthesis Example 1. Synthesis of Binder Resin Represented by Chemical Formula 7

(1) Synthesis of 4- (6-hydroxyhexyl oxy) benzoic acid

100.0 g (0.7 mol) of 4-hydroxy benzoic acid and 105.1 g (1.6 mol) of potassium hydroxide were dissolved in 400.0 g of water. 108.8 g (0.8 mol) of 6-chlorohexanol was dripped at this solution over 1 hour. Then, heating reflux was performed at 100 ° C. After 20 hours, the reaction solution was cooled, and 344.6 g (1.7 mol) of 35% hydrochloric acid was added dropwise at room temperature with vigorous stirring. The precipitated solid was removed and recrystallized with 400 g of tetrahydrofuran (THF) to give 120.0 g (0.5 mol) of the title compound as white crystals.

(2) Synthesis of 4- [6- (2-methylacryloyloxy) hexyloxy] benzoic acid

120.0 g (0.5 mol) of the compound obtained in the above (1) and 81.5 g (0.8 mol) of triethylamine were dissolved in 480.0 g of THF. 84.2 g (0.8 mol) of methacrylic acid chlorides were dripped at this solution over 1 hour. Then, it heated to 40 degreeC. After 4 hours, the reaction solution was cooled, and 240.0 g of water was added. 367.2 g (1 mol) of 10% hydrochloric acid was added and stirred to the separated organic layer. The separated organic layer was concentrated, and the residue was recrystallized from 400.0 g of toluene to obtain 96.0 g (0.3 mol) of the titled compound as white crystals.

(3) Synthesis of 4- [6- (2-methylacryloyloxy) hexyloxy] thio benzoic acid S-4- (methoxy) phenyl ester

96.0 g (0.3 mol) of the compound obtained in the above (2), 42.1 g (0.3 mol) of 4-methoxy thiophenol and 7.7 g (0.1 mol) of N, N-dimethylamino pyridine were dissolved in 960 g of dichloromethane. 71.1 g (0.3 mol) of dicyclohexylcarbodiimide (DCC) was added to this solution. After reaction for 2 hours at room temperature, 288 g of water was added. The separated organic layer was concentrated, and the residue was recrystallized from 100 g of toluene to obtain 110 g (0.3 mol) of the title compound as white crystals.

(4) Synthesis of Poly [1- [6- [4- [4- (methoxy) phenylthiocarbonyl] phenoxy] hexyloxycarbonyl] -1-methylethylene]

110 g (0.2 mol) and AIBN 0.8 g (5 mM) of the compound obtained in the above (3) were dissolved in 412 g of cyclohexanone. Nitrogen was let through this solution for 1 hour. Then, it heated at 80 degreeC. After 10 hours, the reaction solution was cooled and added dropwise to 346 g of normal hexane at room temperature while vigorously stirring. The separated polymer was filtered and dried at a temperature of 50 ° C. under reduced pressure to obtain 93.5 g of the title polymer.

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.

합성예 2: 화학식 8로 표시되는 바인더 수지의 합성 Synthesis Example 2 Synthesis of Binder Resin Represented by Chemical Formula 8

(1) Poly [1- [6- [4- [4-[(E) -2-methoxycarbonylvinyl] phenoxycarbonyl] phenoxy] hexyloxycarbonyl] -1-methylethylene-CO -1- [6- [4-carboxyphenoxy] hexyloxycarbonyl] -1-methylethylene] (M1: M2 = 90:10)

4-6- (2-methylacryloyloxy) hexyloxy] benzoic acid 4-[(E) -2-methoxycarbonylvinyl] phenyl ester 5 g (11 mM), 4- [6- (2-methyl 29.6 g (96 mM) of acryloyloxy) hexyloxy] benzoic acid and 0.35 g (2.1 mM) of 2,2'-azobisisobutyronitrile were dissolved in 196 g of cyclohexanone. Nitrogen was passed through this solution for 1 hour. Then heated at 80 ° C. After 10 hours, the reaction solution was cooled and added dropwise to 346 g of normal hexane at room temperature with vigorous stirring. The separated polymer was filtered, and 26 g of Polymer 1 was obtained by drying at 50 ° C under reduced pressure.

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.

(2) Poly [1- [6- [4- [4-[(E) -2-methoxycarbonylvinyl] phenoxycarbonyl] phenoxy] hexyloxycarbonyl] -1-methylethylene-CO -1- [6- [4-carboxyphenoxy] hexyloxycarbonyl] -1-methylethylene] (M1: M2 = 80:20)

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.

(3) Poly [1- [6- [4- [4-[(E) -2-methoxycarbonylvinyl] phenoxycarbonyl] phenoxy] hexyloxycarbonyl] -1-methylethylene-

CO-1- [6- [4-carbonoxyphenoxy] hexyloxycarbonyl] -1-methylethylene] (M

1: M2 = 70: 30)

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.

(4) poly [1- [6- [4- [4-[(E) -2-methoxycarbonylvinyl] phenoxycar

Carbonyl] phenoxy] hexyloxycarbonyl] -1-methylethylene-CO-1- [6- [3-fluoro-4-carboxyphenoxy] hexyloxycarbonyl] -1-methylethylene] (M1: M2 = 81: 19)

4- [6- (2-methylacryloyloxy) hexyloxy] benzoic acid 4-[(E) -2-methoxycarbonylvinyl] phenyl ester 2 g (4 mM), 2-fluoro-4- [6 5.6 g (17 mM) of (2-methylacryloyloxy) hexyloxy] benzoic acid, 0.11 g (0.6 mM) of 2,2'-azobisisobutyronitrile, 116 g of cyclohexanone, and 76 g of normal hexane In the same manner as in (1), 5 g of a polymer represented by the above chemical formula was obtained.

The polymer obtained above had a weight average molecular weight (MW) of 48,200 and an acid value of 132 mgKOH / g.

(5) Poly [1- [6- [4-[(E) -2- [4-cyanophenoxy] carbonylvinyl] phenoxy] hexyloxycarbonyl] -1-methylethylene-CO-1 -[6- [4-carboxyphenoxy] hexyloxycarbonyl] -1-methylethylene] (M1: M2 = 80:20)

4- [6- (2-methylacryloyloxy) hexyloxy]-(E) -cinnamic acid 4-cyanophenylester (23 mM), 4- [6- (2-methylacryloyloxy) hex In (1), 28 g (92 mM) of siloxy] benzoic acid is used, except that 0.38 g (2.3 mM) of cyclohexanone and 153 g of cyclohexanone are used in 2,2'-azobisisobutyronitrile. In the same manner as in the above to obtain a polymer 22g represented by the above formula.

The polymer obtained above had a weight average molecular weight (MW) of 24,800 and an acid value of 135 mgKOH / g.

합성예 3: 보호층의 고분자(카르복시기 포함) 합성Synthesis Example 3 Synthesis of Polymer (including Carboxylic Group) of Protective Layer

60 parts of 8-hydroxycarbonyl tetracyclododecene, 40 parts of N-phenyl- (5-norbornene-2,3-dicarboxyimide), 1.3 parts of 1-hexene, (1,3-dimethylimidazoli Din-2-ylidene) (tricyclohexylphosphine) benzylideneruthenium dichloride 0.05 part and 400 parts tetrahydrofuran were introduced into a nitrogen-substituted glass pressure reactor and reacted at 70 ° C. for 2 hours while stirring to obtain a resin solution (a ) (Solid content: about 20%). 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. Next, 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. After the completion of the reaction, the reaction solution was filtered through a fluorine resin filter having a pore diameter of 0.2 μm to separate activated carbon to obtain a resin solution (c-1). At this time, the solution was filtered smoothly. Next, the resin solution (c-1) was added in ethyl alcohol. The resulting piece was dried to obtain 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.

To the resin solution (c-1), 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).

합성예 4. 보호층의 고분자(수산기 포함) 합성Synthesis Example 4. Synthesis of Polymer (including hydroxyl group) of Protective Layer

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. 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. .

On the other hand, the solution which melt | dissolved 20 weight part of polymerization initiator azobisisobutyronitrile in 80 weight part of PGMEA was dripped over 5 hours using another dropping lot. After the dropping of the polymerization initiator was completed, a resin having a solid content of 33.6 wt% and a weight average molecular weight of 19,740 was obtained while maintaining the temperature for about 4 hours and then cooling to room temperature. To the resin solution (c-2), 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 to obtain a solid content of 20% to form a first protective layer ( B-2).

합성예 5. 보호층의 고분자(아마이드기 포함) 합성Synthesis Example 5 Synthesis of Polymer (Including Amide Group) of Protective Layer

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. To the resin solution (c-3), 0.5 parts of additives F-554, DIC, EPHE-3150CE, and 2.5 parts of Dicel were added as a curing agent, and a protective layer resin composition was prepared to obtain a solid content of 20% to form a first protective layer ( B-3).

실시예 및 비교예Examples and Comparative Examples

(1) 분리층 형성용 조성물(1) Composition for Separation Layer Formation

To prepare a composition having the composition and content described in Table 1.

1. Curing agent

M1: melamine curing agent represented by the formula (1)

M2: melamine curing agent represented by the formula (2)

M3: melamine curing agent represented by the formula (3)

M4: melamine curing agent represented by the formula (4)

M5: melamine curing agent represented by the formula (5)

M6: melamine curing agent represented by the formula (6) (n = 15)

M7: radical curing agent (V-65 (Wako))

M8: Cationic Curing Agent (Irgacure 250 (BASF))

M9: triazine-based curing agent (MP-triazine (Sanwa Chemical Co., Ltd.))

2. Binder Resin

B1: Binder Resin Prepared in Synthesis Example 1

B2: Binder Resin Prepared in Synthesis Example 2

3 solvent

D1: diacetone alcohol

D2: Propylene Glycol Methyl Ether

4. Additive

SH-8400 (Shin-Etsu Chemical)

(2)컬러필터(2) color filters

Soda lime glass having a thickness of 700 μm 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.

Then, 17 parts by weight of any one of the polymers of Synthesis Examples 3 to 5, 79.5 parts by weight of Diethylene Glycol Methyl Ethyl Ether as a solvent and 0.5 parts by weight of F-554 (DIC) as an additive, EPHE-3150CE (Dicel) After mixing to 2.5 parts by weight, 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 μm, 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.

Subsequently, 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 μm 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.

실험예Experimental Example

1. 밀착력 평가1. Evaluation of adhesion

A separation layer and a protective layer were formed on the soda lime glass having a thickness of 700 μm in the same manner as in Examples and Comparative Examples. The obtained board | 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.

5B: No coating film falling off the cut edges, no coating film peeling in the lattice

4B: Weak edges are weakly observed and peeling occurs within 5% of the total

3B: Peeling and chipping of edges are observed and peeled off within 15%

2B: Peeling and chipping are also seen in the lattice, and peels within 15% and within 35%

1B: Large ribbon delamination is observed and peels within 35% and within 65%

0B: Peeled at an area greater than 65%. Poor adhesion

2. 투과율 측정2. Transmittance Measurement

A separation layer and a protective layer were formed on the soda lime glass having a thickness of 700 μm 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.

3. 내용제성 평가3. Solvent resistance evaluation

Apart from the color filter, a soda lime glass having a thickness of 700 μm 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 ℃ was measured, the results are shown in Tables 2 to 7.

○: 98% or more

△: 95%-98%

X: 95% or less

4. 열안정성 평가4. Thermal Stability Evaluation

Apart from the color filter, a soda lime glass having a thickness of 700 μm 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.

○: 3 T% or less

△: 4-8 T% or less

X: 9 T% or more

5. 크랙 평가5. Crack Evaluation

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.

○: no crack

△: fine crack generation

X: Breaking color filter

Referring to Tables 2 to 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.

Claims

Separation layer;

A protective layer disposed on the separation layer;

A black matrix layer disposed on the protective layer; And

A pixel layer formed between the black matrix layers,

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 color filter of claim 1, wherein the separation layer is formed of a composition for forming a separation layer including a binder resin and a melamine-based curing agent having an alkoxy group having 1 to 5 carbon atoms.
The color filter of claim 2, wherein the melamine-based curing agent comprises at least one of compounds represented by the following Chemical Formulas 1 to 6:

[Formula 1]

[Formula 2]

[Formula 3]

[Formula 4]

[Formula 5]

[Formula 6]

(Wherein n is an integer of 5 to 20).
[Revision 16.05.2017 under Rule 91]
The color filter of claim 2, wherein the binder resin of the separation layer comprises at least one polymer including a repeating unit represented by Formula 7 or Formula 8.
[Formula 7]

[Formula 8]

(Wherein, 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,
Z is an alkyl group, alkoxy group, cyano group, nitro group, halogen atom, -CH = CHZ 1 , -C≡CZ 1 (wherein Z 1 is alkyl group, alkoxy group, alkoxy carbonyl group, alkoxy sulfonyl group, cyano group, nitro group Or a halogen atom, -COOZ 2 or -SO 3 Z 2 (where Z 2 is an alkyl group),
n is 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,
T is -CH = CHCOO- (trans) or -N = N-,
p or q are each independently 1 to 12,
m or l is the mole fraction of each monomer in the copolymer that satisfies the relationship of 0.65 ≦ m ≦ 0.95, 0.05 ≦ l ≦ 0.35, m + l = 1,
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 of claim 2, wherein the melamine curing agent is included in an amount of 120 to 250% relative to the reaction equivalent weight of the polymer represented by Formulas 7 to 8.
The color filter of claim 1, wherein the protective layer is formed of a protective layer-forming composition containing a polymer including at least one of a hydroxyl group, a carboxyl group, and an amide group.
The flexible color filter of claim 6, wherein the polymer of the protective layer comprises a polymer including at least one of repeating units represented by Formula 9 or 10 below:

[Formula 9]

[Formula 10]

Wherein at least one of 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,

Except for the at least one of R 3 to R 6 except the at least one is hydrogen or -Hn-Y 2 , 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 color filter of claim 6, wherein a weight average molecular weight of the polymer included in the protective layer is 1,000 to 1,000,000.
The image display apparatus provided with the color filter of any one of Claims 1-8.