WO2019198974A1 - Hard coating composition, hard coating film comprising same, and image display device - Google Patents

Abstract

The present invention relates to a hard coating composition, a hard coating film comprising same, and an image display device, wherein the hard coating composition comprises: a light-transmissive resin containing a photo-curable epoxy compound; inorganic microparticles; and an ionic liquid anti-static agent, the photo-curable epoxy compound having an equivalent of 120 g/eq or less, whereby the composition can suppress the gelation thereof due to a deterioration in dispersibility, which may occur when the anti-static agent and the inorganic microparticles are used at the same time, can manufacture a hard coating film having excellent scratch resistance and anti-static effects, and can prevent the deterioration of surface characteristics and the occurrence of curls on the hard coating film.

Description

Hard coating composition, hard coating film and image display device comprising the same

The present invention relates to a hard coating composition, a hard coating film comprising the same and an image display device.

Liquid crystal devices (LCDs) are used in various applications such as notebooks, mobile phones, liquid crystal TVs, and the like, and generally require liquid crystal cells and polarizing plates containing liquid crystals. In addition, the polarizing plate is provided with a polarizer protective film on both sides of the polarizer, the anti-reflective, anti-glare, high hardness, antistatic functional coating layer is further added on the polarizer protective film, the protective film is attached thereon. In addition to the polarizing plate, the use of an optical film such as a retardation plate, a brightness enhancement film, and the like as an optical element for improving the quality of a display device in a liquid crystal panel is increasing.

However, the optical film as described above has high surface resistance and is easy to attach foreign substances to the surface due to the occurrence of static electricity. In particular, as the liquid crystal display device is enlarged in recent years, the problem of liquid crystals being broken by static electricity due to external charges is increasing. For example, static electricity is generated by the film adhesive in the protective film removal step of the LCD polarizer during the production of a large LCD substrate, and the generated static electricity may cause fatal damage to the LCD module. In addition, the optical film has a problem that the surface hardness is low, the scratch (scratch) or the scrape (scrape) is easily generated by the contact due to the external impact and thus the transparency is damaged.

In order to solve this problem, Korean Patent Publication No. 10-2006-0050244 discloses a resin composition containing a compound having at least one glycidyl group and / or an epoxy group and inorganic fine particles, a phenol compound, a glycidyl group and / or an epoxy. A resin composition having at least one of a compound and three components of inorganic fine particles and a polyhydric phenol and inorganic fine particles as essential components are described as a resin composition having excellent thermal shock resistance, moldability and strength, There is a problem that the antistatic function can not be suppressed to suppress the generation of static electricity.

In addition, Korean Patent Publication No. 10-2009-0110662 discloses an ionic agent as an antistatic agent in a hard coating agent composition including an ultraviolet curable acrylic monomer, a reactive silica particle chemically bonded to silica particles and a hydrolyzable silane, an organic solvent, and a photopolymerization initiator. By including a solid, it has been described with respect to the hard coating agent composition with improved antistatic properties and optical performance, but in the case of containing an acrylic monomer, there is a problem that curling occurs in the hard coating film occurs.

[Preceding technical literature]

[Patent Documents]

(Patent Document 1) Republic of Korea Patent Publication No. 10-2006-0050244 (2006.05.19.)

(Patent Document 2) Republic of Korea Patent Publication No. 10-2009-0110662 (2009.10.22.)

The present invention is to solve the problems as described above, relates to a hard coating composition that is excellent in scratch resistance and antistatic performance and to prevent curling, a hard coating film and an image display device comprising the same.

Hard coating composition of the present invention for achieving the above object is a translucent resin containing a photocurable epoxy compound; Inorganic fine particles; And an ionic liquid antistatic agent, wherein the equivalent weight of the photocurable epoxy compound is 120 g / eq or less.

In addition, the hard coating film of the present invention is characterized in that it comprises a cured product of the above-described hard coating composition.

In addition, the window of the present invention is characterized in that it comprises the above-described hard coating film.

In addition, the image display apparatus of the present invention is characterized by including the above-mentioned window.

The hard coating composition of the present invention can be produced a hard coating film having excellent storage stability and excellent scratch resistance and antistatic effect, the gelling is suppressed, the advantage of preventing the surface properties of the hard coating film or the occurrence of curl There is this.

The hard coat film of the present invention has the same advantages as described above.

The window of the present invention has the same advantages as described above.

The image display device of the present invention has the same advantages as described above.

In the present invention, when a member is located "on" another member, this includes not only when one member is in contact with another member but also when another member exists between the two members.

In the present invention, when a part is said to "include" a certain component, it means that it may further include other components, without excluding the other components unless otherwise stated.

Hereinafter, the present invention will be described in more detail.

<Hard Coating Composition>

Hard coating composition according to one aspect of the present invention is a light-transmissive resin containing a photocurable epoxy compound; Inorganic fine particles; And an ionic liquid antistatic agent, wherein the equivalent weight of the photocurable epoxy compound is 120 g / eq or less, thereby preventing gelation of the composition due to the dispersibility decrease that may occur when the antistatic agent and the inorganic fine particles are used simultaneously. It is possible to produce a hard coating film that is excellent in scratch resistance and antistatic effect, and has an advantage of preventing surface property degradation or curling of the hard coating film.

Translucent  Suzy

The hard coating composition according to one embodiment of the present invention comprises a photocurable epoxy compound as a light transmitting resin, and the equivalent weight of the photocurable epoxy compound is 120 g / eq or less, so that the hard coat film does not contain an acrylate compound. It is possible to manufacture, it is effective to prevent the occurrence of curl generated by including the acrylate-based compound, there is an effect that the scratch resistance is improved. When the equivalent is exceeded, there exists a problem that scratch resistance falls.

Specific examples of the photocurable epoxy compound include bisphenol type, novolac type, glycidyl ether type, glycidyl amine type, linear aliphatic type, alicyclic type, biphenyl type epoxy compound, and the like. 1,4-butanediol diglycidyl ether, 1,6-hexanediol diglycidyl ether, neopentyl glycol diglycidyl ether, trimethylol propane triglycidyl ether, polyethylene glycol diglycidyl ether, glycerin triglycol Cyl ether, polypropylene glycol diglycidyl ether; Polyglycidyl ethers of polyether polyols obtained by adding one or two or more alkylene oxides to aliphatic polyhydric alcohols such as ethylene glycol, propylene glycol, glycerin and pentaerythritol; Diglycidyl esters of aliphatic long-chain dibasic acids; Monoglycidyl ethers of aliphatic higher alcohols; Glycidyl ethers of higher fatty acids; Epoxidized soybean oil; Butyl epoxystearate; Octyl epoxystearate; Epoxidized flax oils; Epoxidized polybutadiene, alicyclic epoxy carboxylate, (3,4-epoxycyclohexyl) methyl-3 ', 4'-epoxycyclohexanecarboxylate, diglycidyl 1,2-cyclohexanedicarboxylate , 2- (3,4-epoxycyclohexyl-5,5-spiro-3,4-epoxy) cyclohexane-meth-dioxane, bis (3,4-epoxy-6-methylcyclohexyl) adipate, 3 , 4-epoxy-6-methylcyclohexylmethyl-3 ', 4'-epoxy-6'-methylcyclohexanecarboxylate, ε-caprolactone modified 3,4-epoxycyclohexylmethyl-3', 4'- Epoxycyclohexanecarboxylate, trimethylcaprolactone modified 3,4-epoxycyclohexylmethyl-3 ', 4'-epoxycyclohexanecarboxylate, β-methyl-δ-valerolactone modified 3,4-epoxycyclohexyl Methyl-3 ', 4'-epoxycyclohexanecarboxylate, 1,4-cyclohexanedimethanol bis (3,4-epoxycyclohexanecarboxylate), di (3,4-epoxycyclohexylme of ethylene glycol) ) Ether, and the like ethylene-bis (3,4-epoxycyclohexanecarboxylate)), but not limited to this, and these may be used alone or in combination of two or more.

According to an embodiment of the present invention, the photocurable epoxy compound may include a glycidyl group, and more specifically, may include a glycidyl ether type epoxy compound, in which case it does not include an acrylate compound. It is possible to form a hard coating layer without, and there is an advantage that can suppress the curl generation than when forming a hard coating layer containing an acrylate compound.

According to one embodiment of the present invention, the above-mentioned light transmitting resin may be included in an amount of 1 to 80 parts by weight, and preferably 30 to 60 parts by weight, based on 100 parts by weight of the total hard coating composition including the same. When the content of the light-transmissive resin is less than the above range, it is difficult to achieve sufficient hardness and scratch resistance may decrease, and when the content exceeds the above range, curling may occur.

Inorganic fine particles

In addition, the hard coating composition according to an embodiment of the present invention has an effect of further improving the scratch resistance of the hard coating film formed by including inorganic fine particles together with the above-described photocurable epoxy compound.

Examples of the inorganic fine particles include silica fine particles, aluminum oxide particles, titanium oxide particles, zinc oxide particles, and the like, but are not limited thereto. These inorganic particles may be used alone or in combination of two or more thereof.

According to one embodiment of the present invention, the size of the inorganic fine particles may be 100 nm or less, preferably 1 to 100 nm, more preferably 1 to 50 nm. When the size of the inorganic fine particles exceeds the above range, haze value may be increased to decrease transparency of the hard coat film.

According to one embodiment of the present invention, the inorganic fine particles may be included in 20 to 80 parts by weight, preferably 40 to 70 parts by weight based on 100 parts by weight of the total hard coating composition comprising the same. When the content of the inorganic fine particles is less than the above range, it is difficult to achieve sufficient hardness, so that scratch resistance may be lowered, and when it exceeds the above range, cracking may occur.

Ionic Liquid Antistatic Agent

The hard coating composition according to one aspect of the invention comprises an ionic liquid antistatic agent. In general, in the case of a composition including an antistatic agent and inorganic fine particles, the dispersibility of the antistatic agent is reduced, thereby causing a problem of gelation of the composition or deterioration of surface properties when the hard coat film is formed. In addition, by including an ionic antistatic agent in the form of a liquid having excellent solubility, it is possible to prevent gelation of the composition, and to prevent the surface properties of the hard coating film such as scratch resistance and antistatic property from deteriorating, and to increase the haze. The coating composition was prepared.

Specifically, the ionic liquid antistatic agent may be a salt that melts at a relatively low temperature and has a non-molecular, ionic character, and exhibits a relatively low viscosity, leading to very good solvent compatibility with many organic, inorganic and polymeric materials. Has The ionic liquid antistatic agent may be a compound that consists of positive and negative ions but is entirely uncharged. At this time, the positive ions and the negative ions are mostly monovalent, but may be polyvalent positive ions or negative ions.

The ionic liquid antistatic agent is a compound, for example imidazole, pyrazole, thiazole, isothiazole, azathiazole, oxothiazole, oxazine, oxazoline, oxazabolol, dithioazole, triazole, sele Nosol, oxaphosphol, pyrrole, borol, furan, thiophene, phosphol, pentazole, indole, indolin, oxazole, isoxazole, isotriazole, tetrazole, benzofuran, dibenzofuran, benzothiophene, By alkylation of dibenzothiophene, thiadiazole, pyridine, pyrimidine, pyrazine, pyridazine, piperazine, piperidine, morpholone, pyran, anoline, phthalazine, quinazoline, quinoxaline and combinations thereof It can consist of the organic cation obtained, preferably quaternary ammonium cation, phosphonium cation, imidazolium cation, H-pyrazolium cation, pyridazinium ion, pyrimidinium ion, pyrazinium ion, pyrrolidinium Cations, guanidinium cations, one or more phosphorus Is a 5- to 6-membered or higher cation containing a sulfur atom, 1,8-diazabicyclo [5.4.0] unde-7-cenium cation and 1,8-diazabicyclo [4.3.0] non-5- Inium cations and also oligomers and polymers comprising such cations.

Further, the anionic portion of the ionic liquid antistatic agent may be formed with inorganic or organic anions, for example _{^{halide, BX 4 -, PF 6 -}} , AsF 6 -, SbF 6 -, NO 2 -, NO 3 - , SO ₄ ^2-, alkyl sulfates, BR ₄ ^-, a substituted or unsubstituted carboxylic borane, a substituted or unsubstituted metal boranes to carboxylic, phosphate, phosphite, poly-oxo-metal acrylate, substituted or unsubstituted carboxylates, triflates , Trilimide and non-coordinating anions. Wherein R is hydrogen, alkyl, substituted alkyl, cycloalkyl, substituted cycloalkyl, heteroalkyl, heterocycloalkyl, substituted heterocycloalkyl, aryl, substituted aryl, heteroaryl, substituted heteroaryl, alkoxy aryloxy, acyl, silyl, Boryl, phosphino, amino, thio, seleno and combinations thereof or halogen, in particular fluorine.

Combinations of the aforementioned cations and anions can be variously determined by those skilled in the art in order to add antistatic properties, and are not particularly limited in the present invention.

The ionic liquid antistatic agent may be purchased and used commercially available, for example, QM352B (Sooyang Chemtech), IM329A (Sooyang Chemtech), AS804S (DKS) and the like, but is not limited thereto.

According to one embodiment of the present invention, the ionic liquid antistatic agent may be included in an amount of 1 to 10 parts by weight, preferably 1 to 5 parts by weight, based on 100 parts by weight of the total hard coating composition including the same. When the content of the ionic liquid antistatic agent is less than the above range, the effect of lowering the surface resistance of the hard coat film may be insignificant, and thus, the antistatic effect may be difficult to be expected.

Hard coating composition according to an embodiment of the present invention may further include one or more selected from the group consisting of a photo initiator, a solvent and an additive in addition to the above-described configuration.

ore Initiator

The photoinitiator of the present invention can be used without particular limitation photoinitiators commonly used in the art, according to one embodiment of the present invention can use a cationic photoinitiator.

The cationic photoinitiator may include, for example, an onium salt, an organometallic salt, and the like, and specifically, a diaryodonium salt, a triarylsulfonium salt, an aryldiazonium salt, an iron-arene complex, and the like. And aryl sulfonium hexafluoroantimonium salt, aryl sulfonium hexafluorophosphate salt, diphenyldiodonium hexafluorophosphate salt, diphenyldiodonium hexaantimonium salt, ditoriodonium Hexafluorophosphate salt, 9- (4-hydroxyethoxyphenyl) cyanrenium hexafluorophosphate salt, and the like, but are not limited thereto, and these may be used alone or in combination of two or more thereof.

The cationic photoinitiator may be a commercially available product, for example, Irgacure 250 (Merck), Uvacure 1590 (SK Cytec) and the like, but is not limited thereto.

The photoinitiator may be included in an amount of 0.1 to 10 parts by weight based on 100 parts by weight of the total hard coating composition including the same. When included in less than the above range, the curing rate may be low and productivity may be lowered. Overcuring may cause cracks in the hard coat layer.

solvent

The solvent can be used without limitation so long as it is known as a solvent in the art.

For example, the solvent may be alcohol-based (methanol, ethanol, isopropanol, butanol, methylcellulose, ethyl solusorb, propylene glycol monomethyl ether, etc.), ketone-based (methyl ethyl ketone, methyl butyl ketone, methyl isobutyl ketone, Diethyl ketone, dipropyl ketone, cyclohexanone and the like), hexane-based (hexane, heptane, octane and the like), benzene-based (benzene, toluene, xylene and the like) and the like can be preferably used. Solvents illustrated above can be used individually or in combination of 2 types or more, respectively.

The solvent may be included in an amount of 10 to 95 parts by weight based on 100 parts by weight of the total hard coating composition. If the solvent is less than 10 parts by weight on the basis of the viscosity may be high workability, when it exceeds 95 parts by weight may take a lot of time in the curing process and economic efficiency may be lowered.

<Hard Coating Film>

Another aspect of the invention is a hard coat film comprising the cured product of the hard coat composition described above.

Since the hard coating film includes a cured product of the hard coating composition of the present invention, it is excellent in scratch resistance and antistatic effect, does not generate curl, and does not cause problems such as deterioration of surface properties. There is this.

The hard coat film of the present invention may be formed by including a cured product of the hard coat composition of the present invention on at least one side of the substrate.

Examples of the substrate include cellulose derivatives such as diacetyl cellulose, triacetyl cellulose and acetyl cellulose butyrate, ethylene-vinyl acetate copolymer, polyester, polystyrene, polyamide, polyetheramide, polyacryl, polyimide, Polyamideimide, polyethersulfone, polyethylene, polypropylene, polymethylpentene, polyvinyl chloride, polyvinylidene chloride, polyvinyl alcohol, polyvinyl acetal, polyether ketone, polyether sulfone, polymethyl methacrylate, polyethylene tere Phthalates, polyethylene naphthalates, polycarbonates and the like can be used, and preferably polyamideimide or polyimide can be used, but is not limited thereto.

The method for coating the antistatic hard coating composition of the present invention on at least one side of the substrate may use a conventional method known in the art, for example, die coater, air knife, reverse roll, spray, blade , Casting, gravure or spin coating, and the like, but are not limited thereto.

<Display window>

Another aspect of the present invention is a display window provided with the above-described hard coating film, the display window is provided with the hard coating film of the present invention is excellent in scratch resistance and antistatic effect and has the advantage of preventing curl generation.

In this case, the display window may be flexible, and specifically, a display glass such as an LCD, OLED, LED, FED, or a variety of mobile communication terminals, a touch panel of a smartphone or a tablet PC, a cover glass such as an entire paper, and the like may be used. It can be used as a substitute or functional layer.

<Image display device>

The image display apparatus according to another aspect of the present invention has the advantage of being excellent in scratch resistance and antistatic effect and preventing curling by including the aforementioned window.

Specifically, the image display device includes a liquid crystal display (liquid crystal display device; LCD), an organic EL display (organic EL display device), a liquid crystal projector, a display device for a game machine, a display device for a mobile terminal such as a mobile phone, and a display for a digital camera. And display devices such as a display device for a car navigation system and the like, and can be flexible.

The image display apparatus may include other components that may be normally included in the image display apparatus, such as a light emitting device such as a light source, a light guide plate, a liquid crystal display including a color filter according to the present invention, and the like. Do not.

Hereinafter, preferred examples are provided to aid the understanding of the present invention, but the following examples are merely for exemplifying the present invention, and it is apparent to those skilled in the art that various changes and modifications can be made within the scope and spirit of the present invention. Naturally, such modifications and variations fall within the scope of the appended claims. In the following Examples and Comparative Examples, "%" and "parts" indicating contents are by weight unless otherwise specified.

EXAMPLE  And Comparative example : Hard coating  Preparation of the composition

EXAMPLE  One

25 parts by weight of tetrafunctional epoxy (pentaerythritol glycidyl ether, Pentaerythritol glycidyl ether, J & H chemical, 108 g / eq), 65 parts by weight of acrylated nanosilicazol (20 nm, solid content 48%, solvent PGME), 2 parts by weight Ionic liquid antistatic agent QM352B (Sooyang Chemtech), 4 parts by weight of propylene glycol monomethyl ether (large gold), 3 parts by weight of cationic initiator (Irgacure 250, Merck), 1 part by weight of leveling agents (BYK307, BYK) was combined using a stirrer and filtered through a PP filter to prepare a hard coating composition.

EXAMPLE  2 to 3 and Comparative example  1 to 5

A hard coating composition was prepared in the same manner as in Example 1, except for changing each composition and content as shown in Table 1 below.

(Content unit: weight part)	Epoxy compound				Inorganic fine particles	Photoinitiator	solvent	additive	Antistatic agent
	A-1	A-2	A-3	A-4	B	C	D	E	F-1	F-2	F-3	F-4	F-5	F-6
Example 1	25	-	-	-	65	3	4	One	2	-	-	-		-
Example 2	25	-	-	-	64	3	4	One	3	-	-	-		-
Example 3	25	-	-	-	64	3	4	One	-	3	-	-		-
Example 4	25	-	-	-	64	3	4	One	-	-	3	-	-	-
Example 5	-	-	25	-	64	3	4	One	3	-	-	-	-	-
Comparative Example 1	25	-	-	-	64	3	4	One	-	-	-	3		-
Comparative Example 2	25	-	-	-	64	3	4	One	-	-	-	-	3	-
Comparative Example 3	25	-	-	-	64	3	4	One	-	-	-	-	-	3
Comparative Example 4	-	25	-	-	65	3	4	One	2	-	-	-		-
Comparative Example 5	-	-	-	25	65	3	4	One	2	-	-	-		-
A-1) Pentaerythritol glycidyl ether (J & H chemical, 108g / eq), A-2) Pentaerythritol glycidyl ether (Kukdo chemical, 165g / eq), A- 3) Trimethylolpropane Polyglycidyl Ether (NAGASE, 115g / eq), A-4) 1,4-butanediol diglycidyl ether (Dow Chemical 130g / eq) , B) Acrylate Nanosilicazol (10-20nm, Solvent PGME, Nissan Chemical), C) Irgacure 250 (BASF), D) Propylene Glycol Monomethyl Ether (PGME, Large Purification Gold), E) Leveling Agent (BYK307 , BYK), F-1) Ionic Liquid Antistatic Agent (QM352B, Suyang Chemtech), F-2) Ionic Liquid Antistatic Agent (IM329A, Suyang Chemtech), F-3) Ionic Liquid Antistatic Agent (AS804S, DKS) , F-4) polysiloxane antistatic agent (411UV, Sino-Emulsified oil), F-5) polysiloxane antistatic agent (UVAS-364, advanced), F-6) inorganic particle antistatic agent (TYS-F90, TOYO INK)

Production Example : Hard coating  Manufacture of film

Each hard coating composition prepared in Examples and Comparative Examples was applied to a thickness of 10㎛ after drying on a transparent substrate film (50㎛, polyimide) and then dried at 80 ℃ for 2 minutes, 400mJ / cm ² A hard coat film was prepared by curing with ultraviolet light at an irradiation dose of.

Experimental Example  One: Scratch resistance  evaluation

In the hard coating film prepared in the above manufacturing example, the hard coating film is fixed on the glass so that the hard coating layer surface, which is a cured product of the hard coating composition, faces upwards, using steel wool (# 0000) at a load of 500 g / cm ² . Ten round trip scratch tests were performed.

The results were visually observed and evaluated according to the following evaluation criteria, which are shown in Table 2 below.

<Evaluation Criteria>

◎: no scratch

○: less than 10 scratches

△: less than 20 scratches or more

Х: 20 or more scratches

Experimental Example  2: Haze  Measure

Each of the hard coat films prepared in the above preparation was measured using a haze meter (HM-150, Murakami, Inc.), the results are shown in Table 2 below.

Experimental Example  3: surface resistance measurement

The surface resistance was measured by applying a 500V voltage to the hard coating film prepared in the preparation example using a surface high resistance measuring instrument (Hiresta-up, MCP-HT450, Mitsubishi Corporation) URS probe. The results are shown in Table 2 below.

	Scratch resistance	Haze	Surface resistance (Ω / □)
Example 1	◎	0.3	1.18E + 12
Example 2	◎	0.4	2.14E + 11
Example 3	○	0.4	1.22E + 11
Example 4	○	0.3	6.65E + 11
Example 5	○	0.3	3.17E + 11
Comparative Example 1	Х	0.3	4.97E + 12
Comparative Example 2	Х	0.4	5.37E + 12
Comparative Example 3	△	0.6	1.51E + 13
Comparative Example 4	△	0.4	1.09E + 12
Comparative Example 5	Х	0.3	8.43E + 12

Referring to Table 2, in the case of Examples 1 to 5 that satisfies all the conditions presented in the present invention, scratch resistance than the case of Comparative Examples 1 to 5 in which none of the conditions presented in the present invention are satisfied. Of course, it was confirmed that the haze is low, the transparency is excellent, and the surface resistance is low, the antistatic performance is also excellent.

Specifically, in Comparative Examples 1 to 3 using an antistatic agent other than the ionic liquid antistatic agent presented in the present invention, it was confirmed that the scratch resistance is not good, the surface resistance is high and the antistatic performance is deteriorated, in particular inorganic When the particle type antistatic agent is used, it was confirmed that haze was high and transparency fell. In Comparative Examples 4 and 5 using an epoxy compound exceeding the equivalents of the present invention, the scratch resistance was also lowered, and the surface resistance was high, indicating that the antistatic performance was not good.

Claims (13)

1. Translucent resin containing a photocurable epoxy compound; Inorganic fine particles; And an ionic liquid antistatic agent;

   Hard coating composition, characterized in that the equivalent of the photocurable epoxy compound is 120g / eq or less.
2. The method of claim 1,

   The photocurable epoxy compound hard coating composition comprising a glycidyl group.
3. The method of claim 2,

   The photocurable epoxy compound hard coating composition comprising a glycidyl ether type epoxy compound.
4. The method of claim 1,

   The hard coating composition is characterized in that it does not contain an acrylate compound.
5. The method of claim 1,

   The size of the inorganic fine particles is a hard coating composition, characterized in that less than 100nm.
6. The method of claim 1,

   The inorganic fine particle is a hard coating composition comprising 20 to 80 parts by weight based on 100 parts by weight of the total hard coating composition comprising the same.
7. The method of claim 1,

   The light-transmissive resin is a hard coating composition comprising 1 to 80 parts by weight, based on 100 parts by weight of the total hard coating composition comprising the same.
8. The method of claim 1,

   The ionic liquid antistatic agent is a hard coating composition, characterized in that included in 1 to 10 parts by weight based on 100 parts by weight of the total hard coating composition comprising the same.
9. The method of claim 1,

   The hard coating composition further comprises one or more selected from the group consisting of a photo initiator, a solvent and an additive.
10. The method of claim 9,

    And the photoinitiator is a cationic photoinitiator.
11. Hard coating film comprising a cured product of the hard coating composition of any one of claims 1 to 10.
12. A window comprising the hard coat film of claim 11.
13. An image display apparatus comprising the window of claim 12.