KR102458676B1 - Sol dispersion for display device comprising metal oxide - Google Patents

Abstract

The present invention relates to a dispersion composition for a display comprising a metal oxide used in the manufacture of a film for display, etc., wherein the dispersion composition for a display containing the metal oxide of the present invention comprises 5 wt% to 30 wt% of a surface treatment agent; and 40 wt% to 70 wt% of a metal oxide comprising zirconia; it is dispersed in an organic solvent comprising a biphenyl group.

Description

Method for producing a dispersion composition for a display containing a metal oxide {SOL DISPERSION FOR DISPLAY DEVICE COMPRISING METAL OXIDE}

The present invention relates to a metal oxide sol used in the production of a film for display and the like and a method for producing the same.

Compositions containing oxides of metals are usefully used in manufacturing films for displays and the like. One example of such a film for display is a brightness enhancing film.

Such a film for display can improve the luminance of backlit flat panel displays such as liquid crystal monitors (LCDs) in electroluminescent panels, laptop computer displays, word processors, desktop monitors, televisions, video cameras, and automobile and aircraft displays. It is used for the purpose of increasing.

When such a film for a display is used, optical properties and physical properties on a specific panel surface including refractive index can be preferably improved. As an example, when a brightness enhancing film or the like is provided, by improving the brightness, it is possible to illuminate the display using less power, thereby reducing power consumption, reducing the degree of heat generation and reducing the product The lifespan of the device is extended, so that electronic products can be used more effectively.

The development of the material for such a display film is still insignificant, and in order to produce it more effectively, it is possible to maintain a high refractive index while including a metal oxide, and for a display that can ensure high dispersibility of the metal oxide in the composition There is a need to develop the composition of the dispersion.

It is an object of the present invention to meet the above needs and to develop a composition solution capable of maintaining low viscosity characteristics, high dispersibility and high refractive index while ensuring high dispersibility of metal oxides in the composition, and a film for display including the same An object of the present invention is to provide a composition of a dispersion capable of producing

The dispersion composition for a display comprising the metal oxide of the present invention, the surface treatment agent 5% to 30% by weight; and 40 wt% to 70 wt% of a metal oxide comprising zirconia; it is dispersed in an organic solvent comprising a biphenyl group.

According to an embodiment of the present invention, the organic solvent containing the biphenyl group is phenylphenol, biphenyl acrylate, 2-biphenylyl acrylate, 2-([1,1'-biphenyl]-2- Lyloxy) ethyl acrylate, biphenyl methacrylate, o-phenylphenol ethoxy acrylate, 1- (biphenyl-2-ylmethyl) -4-phenylpiperazine, 1- (biphenyl-2-ylmethyl) )-4-(2-methoxyphenyl)piperazine, 1-(biphenyl-2-ylmethyl)-4-(2-ethoxyphenyl)piperazine, 1-(biphenyl-2-ylmethyl)- 4-(2-isopropoxyphenyl)piperazine, 1-(biphenyl-2-ylmethyl)-4-(3-methoxyphenyl)piperazine, 1-(biphenyl-2-ylmethyl)-4 -(4-methoxyphenyl)piperazine, 1-(biphenyl-2-ylmethyl)-4-(3,4-dimethoxyphenyl)piperazine, 1-(biphenyl-2-ylmethyl)-4 -(3,5-dimethoxyphenyl)piperazine, 1-(biphenyl-2-ylmethyl)-4-(2-phenoxyphenyl)piperazine, 1-(biphenyl-2-ylmethyl)-4 -(2-methylphenyl)piperazine, 1-(biphenyl-2-ylmethyl)-4-(3-methylphenyl)piperazine, 1-(biphenyl-2-ylmethyl)-4-(4-methylphenyl) Piperazine, 1-(biphenyl-2-ylmethyl)-4-(2,3-dimethylphenyl)piperazine, 1-(biphenyl-2-ylmethyl)-4-(2,4-dimethylphenyl) Piperazine, 1-(biphenyl-2-ylmethyl)-4-(2,5-dimethylphenyl)piperazine, 1-(biphenyl-2-ylmethyl)-4-(3,5-dimethylphenyl) Piperazine, 1- (biphenyl-2-ylmethyl) -4- (2-isopropylphenyl) piperazine, 1- (biphenyl-2-ylmethyl) -4- (biphenyl-2-yl) piperazine Razine, 1-(2'-methoxybiphenyl-2-ylmethyl)-4-(2-methoxyphenyl)piperazine, 1-(3'-methoxybiphenyl-2-ylmethyl)-4- (2-methoxyphenyl)piperazine, 1-(4'-methoxybiphenyl-2-ylmethyl)-4-(2-methoxyphenyl)piperazine, 1-(2'-methylbiphenyl-2 -ylmethyl)-4-(2-methoxyphenyl)piperazine, 1-(biphenyl-3-ylmethyl)-4-phenylpiperazine, 1-(biphenyl-3-ylmethyl)-4-( 2-Methoxyphenyl)piperazine, 1-(biphenyl-3-ylmethyl)-4-(3-methoxyphenyl)piperazine, 1-(biphenyl-3-ylmethyl)-4-(4- Methoxyphenyl)piperazine, 1-(Bar Iphenyl-3-ylmethyl)-4-(3,4-dimethoxyphenyl)piperazine, 1-(biphenyl-3-ylmethyl)-4-(2-ethoxyphenyl)piperazine, 1-( Biphenyl-3-ylmethyl)-4-(2-methylphenyl)piperazine, 1-(biphenyl-3-ylmethyl)-4-(3-methylphenyl)piperazin, 1-(biphenyl-3-yl Methyl)-4-(4-methylphenyl)piperazine, 1-(biphenyl-3-ylmethyl)-4-(2,3-dimethylphenyl)piperazine, 1-(biphenyl-3-ylmethyl)- 4-(2,5-dimethylphenyl)piperazine, 1-(biphenyl-3-ylmethyl)-4-(2,4-dimethylphenyl)piperazine, 1-(biphenyl-3-ylmethyl)- 4-(3,5-dimethylphenyl)piperazine, 1-(2'-methoxybiphenyl-3-ylmethyl)-4-(2-methoxyphenyl)piperazine and 1-(2'-methylbi It may be one comprising at least one selected from the group consisting of phenyl-3-ylmethyl)-4-(2-methoxyphenyl)piperazine.

According to an embodiment of the present invention, the metal oxide is silica, titania, SrTiO ₂ , MgO, Ta ₂ O ₅ , ZrO ₂ -TiO ₂ and SiO ₂ -Fe ₂ O ₃ At least one selected from the group consisting of It may include more.

According to an embodiment of the present invention, the surface treatment agent is epoxysilane, methacrylsilane, alkylsilane, phenylsilane, phenyltrimethoxysilane, phenyltrichlorosilane chlorosilane, phenylchlorosilane, dichlorophenylsilane, dimethoxy Methylphenylsilane, phenyltrimethoxysilane, diphenyldimethoxysilane, diethoxydiphenylsilane, methylphenyldiethoxysilane, methylphenyldichlorosilane, phenoxytrimethylsilane, γ-methacryloxypropyltrimethoxysilane, aminopropyltrie Toxysilane, (3-aminopropyl)triethoxysilane, [3-(2-aminoethylamino)propyl]triethoxysilane, 3-[2-(2-aminoethylamino)ethylamino]propyltrimethoxy Silane, vinyltrichlorosilane, vinylmethylchlorosilane, trimethoxyvinylsilane, triethoxyvinylsilane, dimethyldichlorosilane, methyldichlorosilane, methyltrichlorosilane, trimethylchlorosilane, trichlorosilane, glycidoxymethyltri Methoxysilane, glycidoxymethyltriethoxysilane, α-glycidoxyethyltrimethoxysilane, α-glycidoxyethyltriethoxysilane, β-glycidoxyethyltrimethoxysilane, β-glycy Doxyethyltriethoxysilane, α-glycidoxypropyltrimethoxysilane, α-glycidoxypropyltriethoxysilane, β-glycidoxypropyltrimethoxysilane, β-glycidoxypropyltriethoxysilane , γ-glycidoxypropyltrimethoxysilane, γ-glycidoxypropyltriethoxysilane, γ-glycidoxypropyltripropoxysilane, γ-glycidoxypropyltributoxysilane, γ-glycidoxy propyltriphenoxysilane, α-glycidoxybutyltrimethoxysilane, α-glycidoxybutyltriethoxysilane, β-glycidoxybutyltriethoxysilane, γ-glycidoxybutyltrimethoxysilane, γ-glycidoxybutyltriethoxysilane, δ-glycidoxybutyltrimethoxysilane, δ-glycidoxybutyltriethoxysilane, glycidoxymethylmethyldimethoxysilane, glycidoxymethylmethyldiethoxysilane , α-glycidoxyethylmethyldimethoxysilane, α-glycidoxyethylmethyldiethoxysilane, β-glycidoxyethylmethyldimethoxysilane, β-glycidoxyethylethyldimethoxysilane, α-glycidoxy Propylmethyldimethoxysilane, α-glycidoxypropylmethyldiethoxysilane, β-glycidoxypropylmethyldimethoxysilane, β-glycidoxypropylethyldimethoxysilane, γ-glycidoxypro Philmethyldimethoxysilane, γ-glycidoxypropylmethyldiethoxysilane, γ-glycidoxypropylmethyldipropoxysilane, γ-glycidoxypropylmethyldibutoxysilane, γ-glycidoxypropylmethyldiphenoxy silane, γ-glycidoxypropyl ethyldimethoxysilane, γ-glycidoxypropylethyldiethoxysilane, γ-glycidoxypropylvinyldimethoxysilane, γ-glycidoxypropylvinyldiethoxysilane It may include one or more being.

According to an embodiment of the present invention, the surface treatment agent is benzyl acrylate, benzyl methacrylate, phenyl acrylate, diphenyl acrylate, biphenyl acrylate, 2-biphenylyl acrylate, 2-([1 ,1'-biphenyl]-2-ryloxy)ethyl acrylate, phenoxybenzylacrylate, 3-phenoxybenzyl-3-(1-naphthyl)acrylate, ethyl (2E)-3-hydroxy- 2-(3-phenoxybenzyl)acrylate, phenyl methacrylate, biphenyl methacrylate, 2-nitrophenyl acrylate, 4-nitrophenyl acrylate, 2-nitrophenyl methacrylate, 4-nitrophenyl methacrylate acrylate, 2-nitrobenzyl methacrylate, 4-nitrobenzyl methacrylate, 2-chlorophenyl acrylate, 4-chlorophenyl acrylate, 2-chlorophenyl methacrylate, 4-chlorophenyl methacrylate, ortho - It may further include at least one selected from the group consisting of phenylphenol ethyl acrylate and bisphenol diacrylate.

According to an embodiment of the present invention, the zirconia may be a particle having a size of 1 μm or less.

According to an embodiment of the present invention, the dispersion composition for a display may have a refractive index of 1.60 or more.

According to an embodiment of the present invention, the dispersion composition for a display may have a light transmittance of 60% or more in a wavelength region of 590 nm.

According to an embodiment of the present invention, the dispersion composition for a display may have a viscosity of 2,000 cP or less.

According to an embodiment of the present invention, a dispersing agent comprising at least one selected from polyether acid-based compounds, polyether amine-based compounds, polyether acid/amine mixtures, ester-based compounds including phosphoric acid groups, and polyether-based compounds including phosphoric acid groups It may include more.

According to an embodiment of the present invention, the dispersant may be included in an amount of 1 wt% to 20 wt% in the dispersion composition for a display.

According to an embodiment of the present invention, it is possible to secure a dispersion composition having high refractive index and low viscosity characteristics by including an organic solvent having a high refractive index while ensuring high dispersibility of the metal oxide, and using the dispersion composition By preparing a dispersion composition capable of improving the efficiency of a display device, and a film for a display using the same can be prepared.

Various modifications may be made to the embodiments described below. It should be understood that the embodiments described below are not intended to limit the embodiments, and include all modifications, equivalents, and substitutions thereto.

Terms used in the examples are only used to describe specific examples, and are not intended to limit the examples. The singular expression includes the plural expression unless the context clearly dictates otherwise. In this specification, terms such as "comprises" or "have" are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, but one or more other features It is to be understood that it does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the embodiment belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

Although various organic solvents were used in the conventional metal oxide dispersion composition for a display, conventional organic solvents had problems in that it was difficult to secure high refractive index and low viscosity characteristics required in the field.

On the other hand, the dispersion composition of the metal oxide provided in the present invention includes an organic solvent having a high refractive index, and by including additional components, the metal oxide sol has excellent dispersibility of the metal oxide while simultaneously securing low viscosity characteristics and high refractive index. composition was developed.

The dispersion composition for a display containing the metal oxide of the present invention, the surface treatment agent 5% to 30% by weight; and 40 wt% to 70 wt% of a metal oxide comprising zirconia; it is dispersed in an organic solvent comprising a biphenyl group.

The organic solvent including the biphenyl group has a large molecular structure and increases the dispersion effect by widening the distance between the metal oxide particles in the dispersion due to the steric hindrance effect, and the refractive index of the solvent itself is high, so the loss of the refractive index of the final dispersion composition is small As a material having excellent compatibility with a curing composition containing an organic compound used in a post-process, etc., in the present invention, a high refractive index and low viscosity are secured by dispersing a metal oxide in an organic solvent containing a biphenyl group. can do.

As an example, the organic solvent containing the biphenyl group is phenylphenol, biphenyl acrylate, 2-biphenylyl acrylate, 2-([1,1'-biphenyl]-2-yloxy) ethyl acryl Rate, biphenyl methacrylate, o-phenylphenol ethoxy acrylate, 1- (biphenyl-2-ylmethyl) -4-phenylpiperazine, 1- (biphenyl-2-ylmethyl) -4- ( 2-Methoxyphenyl) piperazine, 1- (biphenyl-2-ylmethyl) -4- (2-ethoxyphenyl) piperazine, 1- (biphenyl-2-ylmethyl) -4- (2- Isopropoxyphenyl) piperazine, 1- (biphenyl-2-ylmethyl) -4- (3-methoxyphenyl) piperazine, 1- (biphenyl-2-ylmethyl) -4- (4-methyl Toxyphenyl) piperazine, 1- (biphenyl-2-ylmethyl) -4- (3,4-dimethoxyphenyl) piperazine, 1- (biphenyl-2-ylmethyl) -4- (3,5 -dimethoxyphenyl) piperazine, 1- (biphenyl-2-ylmethyl) -4- (2-phenoxyphenyl) piperazine, 1- (biphenyl-2-ylmethyl) -4- (2-methylphenyl ) piperazine, 1- (biphenyl-2-ylmethyl) -4- (3-methylphenyl) piperazine, 1- (biphenyl-2-ylmethyl) -4- (4-methylphenyl) piperazine, 1- (biphenyl-2-ylmethyl)-4-(2,3-dimethylphenyl)piperazine, 1-(biphenyl-2-ylmethyl)-4-(2,4-dimethylphenyl)piperazine, 1- (biphenyl-2-ylmethyl)-4-(2,5-dimethylphenyl)piperazine, 1-(biphenyl-2-ylmethyl)-4-(3,5-dimethylphenyl)piperazine, 1- (biphenyl-2-ylmethyl)-4-(2-isopropylphenyl)piperazine, 1-(biphenyl-2-ylmethyl)-4-(biphenyl-2-yl)piperazine, 1-( 2'-Methoxybiphenyl-2-ylmethyl)-4-(2-methoxyphenyl)piperazine, 1-(3'-methoxybiphenyl-2-ylmethyl)-4-(2-methoxy Phenyl) piperazine, 1-(4'-methoxybiphenyl-2-ylmethyl)-4-(2-methoxyphenyl) piperazine, 1-(2'-methylbiphenyl-2-ylmethyl)- 4-(2-methoxyphenyl)piperazine, 1-(biphenyl-3-ylmethyl)-4-phenylpiperazine, 1-(biphenyl-3-ylmethyl)-4-(2-methoxyphenyl ) piperazine, 1- (biphenyl-3-ylmethyl) -4- (3-methoxyphenyl) piperazine, 1- (biphenyl-3-ylmethyl) -4- (4-methoxyphenyl) piperazine Razin, 1-(biphenyl-3-ylmethyl)- 4-(3,4-dimethoxyphenyl)piperazine, 1-(biphenyl-3-ylmethyl)-4-(2-ethoxyphenyl)piperazine, 1-(biphenyl-3-ylmethyl)- 4-(2-methylphenyl)piperazine, 1-(biphenyl-3-ylmethyl)-4-(3-methylphenyl)piperazine, 1-(biphenyl-3-ylmethyl)-4-(4-methylphenyl) ) piperazine, 1- (biphenyl-3-ylmethyl) -4- (2,3-dimethylphenyl) piperazine, 1- (biphenyl-3-ylmethyl) -4- (2,5-dimethylphenyl) ) piperazine, 1- (biphenyl-3-ylmethyl) -4- (2,4-dimethylphenyl) piperazine, 1- (biphenyl-3-ylmethyl) -4- (3,5-dimethylphenyl) ) piperazine, 1-(2'-methoxybiphenyl-3-ylmethyl)-4-(2-methoxyphenyl)piperazine and 1-(2'-methylbiphenyl-3-ylmethyl)-4 -(2-methoxyphenyl) may include one or more selected from the group consisting of piperazine.

The metal oxide serves to provide a composition having a high refractive index in the dispersion. In the present invention, by including the metal oxide in an amount of 40 wt % or more, there may be an effect of providing a dispersion composition for a display for realizing a cured film implementing high refractive index and excellent luminance properties.

According to an embodiment of the present invention, the metal oxide is, in addition to zirconia, silica, titania, SrTiO ₂ , MgO, Ta ₂ O ₅ , ZrO ₂ -TiO ₂ and SiO ₂ -Fe ₂ O ₃ One selected from the group consisting of More may be included.

According to an embodiment of the present invention, the surface treatment agent is epoxysilane, methacrylsilane, alkylsilane, phenylsilane, phenyltrimethoxysilane, phenyltrichlorosilane, chlorosilane, phenylchlorosilane, dichlorophenylsilane, dimethoxy Methylphenylsilane, phenyltrimethoxysilane, diphenyldimethoxysilane, diethoxydiphenylsilane, methylphenyldiethoxysilane, methylphenyldichlorosilane, phenoxytrimethylsilane, γ-methacryloxypropyltrimethoxysilane, aminopropyltrie Toxysilane, (3-aminopropyl)triethoxysilane, [3-(2-aminoethylamino)propyl]triethoxysilane, 3-[2-(2-aminoethylamino)ethylamino]propyltrimethoxy Silane, vinyltrichlorosilane, vinylmethylchlorosilane, trimethoxyvinylsilane, triethoxyvinylsilane, dimethyldichlorosilane, methyldichlorosilane, methyltrichlorosilane, trimethylchlorosilane, trichlorosilane, glycidoxymethyltri Methoxysilane, glycidoxymethyltriethoxysilane, α-glycidoxyethyltrimethoxysilane, α-glycidoxyethyltriethoxysilane, β-glycidoxyethyltrimethoxysilane, β-glycy Doxyethyltriethoxysilane, α-glycidoxypropyltrimethoxysilane, α-glycidoxypropyltriethoxysilane, β-glycidoxypropyltrimethoxysilane, β-glycidoxypropyltriethoxysilane , γ-glycidoxypropyltrimethoxysilane, γ-glycidoxypropyltriethoxysilane, γ-glycidoxypropyltripropoxysilane, γ-glycidoxypropyltributoxysilane, γ-glycidoxy propyltriphenoxysilane, α-glycidoxybutyltrimethoxysilane, α-glycidoxybutyltriethoxysilane, β-glycidoxybutyltriethoxysilane, γ-glycidoxybutyltrimethoxysilane, γ-glycidoxybutyltriethoxysilane, δ-glycidoxybutyltrimethoxysilane, δ-glycidoxybutyltriethoxysilane, glycidoxymethylmethyldimethoxysilane, glycidoxymethylmethyldiethoxysilane , α-glycidoxyethylmethyldimethoxysilane, α-glycidoxyethylmethyldiethoxysilane, β-glycidoxyethylmethyldimethoxysilane, β-glycidoxyethylethyldimethoxysilane, α-glycidoxy Propylmethyldimethoxysilane, α-glycidoxypropylmethyldiethoxysilane, β-glycidoxypropylmethyldimethoxysilane, β-glycidoxypropylethyldimethoxysilane, γ-glycidoxif Rofilmethyldimethoxysilane, γ-glycidoxypropylmethyldiethoxysilane, γ-glycidoxypropylmethyldipropoxysilane, γ-glycidoxypropylmethyldibutoxysilane, γ-glycidoxypropylmethyldiphenoxy silane, γ-glycidoxypropyl ethyldimethoxysilane, γ-glycidoxypropylethyldiethoxysilane, γ-glycidoxypropylvinyldimethoxysilane, γ-glycidoxypropylvinyldiethoxysilane It may include one or more being.

According to an embodiment of the present invention, the surface treatment agent is benzyl acrylate, benzyl methacrylate, phenyl acrylate, diphenyl acrylate, biphenyl acrylate, 2-biphenylyl acrylate, 2-([1, 1'-Biphenyl]-2-ryloxy)ethyl acrylate, phenoxybenzylacrylate, 3-phenoxybenzyl-3-(1-naphthyl)acrylate, ethyl (2E)-3-hydroxy-2 -(3-phenoxybenzyl)acrylate, phenyl methacrylate, biphenyl methacrylate, 2-nitrophenyl acrylate, 4-nitrophenyl acrylate, 2-nitrophenyl methacrylate, 4-nitrophenyl methacrylate Rate, 2-nitrobenzyl methacrylate, 4-nitrobenzyl methacrylate, 2-chlorophenyl acrylate, 4-chlorophenyl acrylate, 2-chlorophenyl methacrylate, 4-chlorophenyl methacrylate, ortho- It may further include at least one selected from the group consisting of phenylphenol ethyl acrylate and bisphenol diacrylate.

According to an embodiment of the present invention, the zirconia may be a particle having a size of 1 μm or less.

As an example, during the preparation of the dispersion composition of the present invention, the zirconia lumps exceeding 1 μm due to not being well dispersed and coagulated with each other may be removed using a 1 μm syringe filter. Zirconia exceeding 1 μm may cause a problem in that a non-uniform film is formed when manufacturing a film for a display.

According to an embodiment of the present invention, the dispersion composition for a display may have a refractive index of 1.60 or more.

By forming the refractive index of 1.60 or more, it has excellent compatibility with various compounds and curing compositions used in the post-process when manufacturing products such as display films, prism films, and curing coating solutions, and has high luminance efficiency, high transmittance and high refractive index. It has the effect of being able to manufacture excellent quality products with the characteristics of

According to an embodiment of the present invention, the dispersion composition for a display may have a light transmittance of 60% or more in a 590 nm wavelength region.

The 590 nm wavelength region corresponds to the middle region of the visible light wavelength region, and the light transmittance value in this region can be a criterion for judging the transparency of the product. Since the light transmittance in the 590 nm wavelength region is formed to be 60% or more, when the dispersion composition of the present invention is used, a transparent display film may be manufactured.

According to an embodiment of the present invention, the dispersion composition for a display may have a viscosity of 2,000 cP or less.

When the viscosity exceeds 2,000 cP, the viscosity becomes too high, so that it is difficult to prepare a liquid with an organic material, and there may be a problem that the dispersibility of the metal oxide particles in the dispersion is lowered, and when a film for a display is prepared, a homogeneous film layer Formation becomes difficult, and there may be problems in which optical properties are deteriorated. The viscosity can be measured using a DV2T LV Spindle (manufactured by Brookfield). Further, the viscosity may be measured at a temperature of 25 and shear rate = 1.0 (1/s)/.

According to an embodiment of the present invention, a dispersing agent comprising at least one selected from polyether acid-based compounds, polyether amine-based compounds, polyether acid/amine mixtures, ester-based compounds including phosphoric acid groups, and polyether-based compounds including phosphoric acid groups It may include more.

According to an embodiment of the present invention, the dispersant may be included in an amount of 1 wt% to 20 wt% in the dispersion composition for a display.

When the dispersant is included in less than 1% by weight, compatibility with the resin composition made of an organic compound to be used in the post-process may be deteriorated, and if it is included in more than 20% by weight, the dispersant is excessively bound to the surface of the metal oxide particles, resulting in a refractive index This lowering problem may occur.

Example : Preparation of dispersion composition for display

Example One

50% by weight of zirconia, 15% by weight of phenylbenzyl acrylate as a surface treatment agent, 30% by weight of biphenylmethyl acrylate as an organic solvent containing a biphenyl group, and 5% by weight of Plysurf A208B (product name, Daiichi Corporation) as a dispersant A dispersion composition for a display of metal oxide particles was prepared.

Example 2

A dispersion composition for a display was prepared in the same manner as in Example 1-1, except that 2-biphenylyl acrylate was used in the same weight as the organic solvent containing a biphenyl group.

Example 3

A dispersion composition for a display was prepared in the same manner as in Example 1-1, except that o-phenylphenol ethoxyacrylate was used in the same weight as the organic solvent containing a biphenyl group.

comparative example One

A dispersion composition for a display was prepared in the same manner as in Example 1-1, except that phenylbenzyl acrylate, not an organic solvent containing a biphenyl group, was used in the same weight.

For Examples and Comparative Examples prepared above, transmittance was measured in the visible ray region, nm, using UV-visible, haze was measured using NDH-7000 equipment, and refractive index using a-8000 equipment. was measured, the viscosity was measured using the DV2T LV Spindle equipment, and the Yellowness Index (YI) was measured using the SD-4000 equipment.

Table 1 below confirms the physical properties of the dispersion composition for a display prepared in Examples 1-1 to 1-3 and Comparative Example 1-1 and shows the values thereof.

Example 1 Example 2 Example 3 Comparative Example 1 organic solvent
type Biethylmethylacrylate 2-biphenylyl acrylate o-Phenylphenol ethoxyacrylate Phenylbenzyl acrylate liquid permeability
(%) 64 67 66 59 liquid refractive index 1.69 1.67 1.69 1.67 Viscosity (cP) 1,863 1,452 1,118 3,738 haze 0.71 0.7 0.72 0.97 YI 1.73 1.69 1.71 2.13

As described above, although the embodiments have been described with reference to the limited embodiments and drawings, various modifications and variations are possible from the above description by those skilled in the art. For example, even if the described techniques are performed in an order different from the described method, and/or the described components are combined or combined in a different form from the described method, or replaced or substituted by other components or equivalents Appropriate results can be achieved.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

Claims (11)

5 wt% to 30 wt% of a surface treatment agent; and
40 wt% to 70 wt% of a metal oxide comprising zirconia; It is dispersed in an organic solvent comprising a biphenyl group,
The organic solvent containing the biphenyl group,
Phenylphenol, biphenyl acrylate, 2-biphenylyl acrylate, 2-([1,1'-biphenyl]-2-yloxy) ethyl acrylate, biphenyl methacrylate, o-phenylphenol ethoxy Acrylate, 1- (biphenyl-2-ylmethyl) -4-phenylpiperazine, 1- (biphenyl-2-ylmethyl) -4- (2-methoxyphenyl) piperazine, 1- (biphenyl -2-ylmethyl)-4-(2-ethoxyphenyl)piperazine, 1-(biphenyl-2-ylmethyl)-4-(2-isopropoxyphenyl)piperazine, 1-(biphenyl- 2-ylmethyl)-4-(3-methoxyphenyl)piperazine, 1-(biphenyl-2-ylmethyl)-4-(4-methoxyphenyl)piperazine, 1-(biphenyl-2- ylmethyl)-4-(3,4-dimethoxyphenyl)piperazine, 1-(biphenyl-2-ylmethyl)-4-(3,5-dimethoxyphenyl)piperazine, 1-(biphenyl- 2-ylmethyl)-4-(2-phenoxyphenyl)piperazine, 1-(biphenyl-2-ylmethyl)-4-(2-methylphenyl)piperazine, 1-(biphenyl-2-ylmethyl) )-4-(3-methylphenyl)piperazine, 1-(biphenyl-2-ylmethyl)-4-(4-methylphenyl)piperazine, 1-(biphenyl-2-ylmethyl)-4-(2 ,3-dimethylphenyl)piperazine, 1-(biphenyl-2-ylmethyl)-4-(2,4-dimethylphenyl)piperazine, 1-(biphenyl-2-ylmethyl)-4-(2 ,5-dimethylphenyl)piperazine, 1-(biphenyl-2-ylmethyl)-4-(3,5-dimethylphenyl)piperazine, 1-(biphenyl-2-ylmethyl)-4-(2 -Isopropylphenyl) piperazine, 1- (biphenyl-2-ylmethyl) -4- (biphenyl-2-yl) piperazine, 1- (2'-methoxybiphenyl-2-ylmethyl) - 4-(2-methoxyphenyl)piperazine, 1-(3'-methoxybiphenyl-2-ylmethyl)-4-(2-methoxyphenyl)piperazine, 1-(4'-methoxybi Phenyl-2-ylmethyl)-4-(2-methoxyphenyl)piperazine, 1-(2'-methylbiphenyl-2-ylmethyl)-4-(2-methoxyphenyl)piperazine, 1- (biphenyl-3-ylmethyl)-4-phenylpiperazine, 1-(biphenyl-3-ylmethyl)-4-(2-methoxyphenyl)piperazine, 1-(biphenyl-3-ylmethyl) )-4-(3-methoxyphenyl)piperazine, 1-(biphenyl-3-ylmethyl)-4-(4-methoxyphenyl)piperazine, 1-(biphenyl-3-ylmethyl)- 4- (3,4-dimethoxyphenyl) piperazine, 1- (biphenyl-3-yl) methyl)-4-(2-ethoxyphenyl)piperazine, 1-(biphenyl-3-ylmethyl)-4-(2-methylphenyl)piperazine, 1-(biphenyl-3-ylmethyl)-4 -(3-methylphenyl)piperazine, 1-(biphenyl-3-ylmethyl)-4-(4-methylphenyl)piperazine, 1-(biphenyl-3-ylmethyl)-4-(2,3- Dimethylphenyl)piperazine, 1-(biphenyl-3-ylmethyl)-4-(2,5-dimethylphenyl)piperazine, 1-(biphenyl-3-ylmethyl)-4-(2,4- Dimethylphenyl)piperazine, 1-(biphenyl-3-ylmethyl)-4-(3,5-dimethylphenyl)piperazine, 1-(2'-methoxybiphenyl-3-ylmethyl)-4- (2-methoxyphenyl) piperazine and 1-(2'-methylbiphenyl-3-ylmethyl)-4-(2-methoxyphenyl) to include at least one selected from the group consisting of piperazine,
The liquid refractive index of the dispersion composition for display is 1.60 or more,
A dispersion composition for a display comprising a metal oxide.
delete According to claim 1,
The metal oxide, silica, titania, SrTiO ₂ , MgO, Ta ₂ O ₅ , ZrO ₂ -TiO ₂ And SiO ₂ -Fe ₂ O ₃ Will further include at least one selected from the group consisting of,
A dispersion composition for a display comprising a metal oxide.
According to claim 1,
The surface treatment agent is epoxysilane, methacrylsilane, alkylsilane, phenylsilane, phenyltrimethoxysilane, phenyltrichlorosilane chlorosilane, phenylchlorosilane, dichlorophenylsilane, dimethoxymethylphenylsilane, phenyltrimethoxysilane, Diphenyldimethoxysilane, diethoxydiphenylsilane, methylphenyldiethoxysilane, methylphenyldichlorosilane, phenoxytrimethylsilane, γ-methacryloxypropyltrimethoxysilane, aminopropyltriethoxysilane, (3-aminopropyl) Triethoxysilane, [3-(2-aminoethylamino)propyl]triethoxysilane, 3-[2-(2-aminoethylamino)ethylamino]propyltrimethoxysilane, vinyltrichlorosilane, vinylmethyl Chlorosilane, trimethoxyvinylsilane, triethoxyvinylsilane, dimethyldichlorosilane, methyldichlorosilane, methyltrichlorosilane, trimethylchlorosilane, trichlorosilane, glycidoxymethyltrimethoxysilane, glycidoxymethyltri Ethoxysilane, α-glycidoxyethyltrimethoxysilane, α-glycidoxyethyltriethoxysilane, β-glycidoxyethyltrimethoxysilane, β-glycidoxyethyltriethoxysilane, α- Glycidoxypropyltrimethoxysilane, α-glycidoxypropyltriethoxysilane, β-glycidoxypropyltrimethoxysilane, β-glycidoxypropyltriethoxysilane, γ-glycidoxypropyltrimethyl Toxysilane, γ-glycidoxypropyltriethoxysilane, γ-glycidoxypropyltripropoxysilane, γ-glycidoxypropyltributoxysilane, γ-glycidoxypropyltriphenoxysilane, α-glycidoxysilane Cidoxybutyltrimethoxysilane, α-glycidoxybutyltriethoxysilane, β-glycidoxybutyltriethoxysilane, γ-glycidoxybutyltrimethoxysilane, γ-glycidoxybutyltriethoxy Silane, δ-glycidoxybutyltrimethoxysilane, δ-glycidoxybutyltriethoxysilane, glycidoxymethylmethyldimethoxysilane, glycidoxymethylmethyldiethoxysilane, α-glycidoxyethylmethyldime Toxysilane, α-glycidoxyethylmethyldiethoxysilane, β-glycidoxyethylmethyldimethoxysilane, β-glycidoxyethylethyldimethoxysilane, α-glycidoxypropylmethyldimethoxysilane, α-glyc Cydoxypropylmethyldiethoxysilane, β-glycidoxypropylmethyldimethoxysilane, β-glycidoxypropylethyldimethoxysilane, γ-glycidoxypropylmethyldimethoxysilane, γ-glycidoxy Propylmethyldiethoxysilane, γ-glycidoxypropylmethyldipropoxysilane, γ-glycidoxypropylmethyldibutoxysilane, γ-glycidoxypropylmethyldiphenoxysilane, γ-glycidoxypropyl ethyldimethoxy Which comprises at least one selected from the group consisting of silane, γ-glycidoxypropylethyldiethoxysilane, γ-glycidoxypropylvinyldimethoxysilane, and γ-glycidoxypropylvinyldiethoxysilane,
A dispersion composition for a display comprising a metal oxide.
According to claim 1,
The surface treatment agent,
Benzyl acrylate, benzyl methacrylate, phenyl acrylate, diphenyl acrylate, biphenyl acrylate, 2-biphenylyl acrylate, 2-([1,1'-biphenyl]-2-yloxy) ethyl Acrylate, phenoxybenzyl acrylate, 3-phenoxybenzyl-3-(1-naphthyl)acrylate, ethyl (2E)-3-hydroxy-2-(3-phenoxybenzyl)acrylate, phenylmetha acrylate, biphenyl methacrylate, 2-nitrophenyl acrylate, 4-nitrophenyl acrylate, 2-nitrophenyl methacrylate, 4-nitrophenyl methacrylate, 2-nitrobenzyl methacrylate, 4-nitro group consisting of benzyl methacrylate, 2-chlorophenyl acrylate, 4-chlorophenyl acrylate, 2-chlorophenyl methacrylate, 4-chlorophenyl methacrylate, ortho-phenylphenol ethyl acrylate and bisphenol diacrylate Which further comprises one or more selected from
A dispersion composition for a display comprising a metal oxide.
According to claim 1,
Wherein the zirconia is a particle having a size of 1 μm or less,
A dispersion composition for a display comprising a metal oxide.
delete According to claim 1,
The dispersion composition for the display,
In the 590 nm wavelength region, the light transmittance is 60% or more,
A dispersion composition for a display comprising a metal oxide.
According to claim 1,
The dispersion composition for the display,
The viscosity is 2,000 cP or less,
A dispersion composition for a display comprising a metal oxide.
According to claim 1,
A dispersant comprising at least one selected from a polyether acid-based compound, a polyetheramine-based compound, a polyether acid/amine mixture, an ester-based compound containing a phosphoric acid group, and a polyether-based compound containing a phosphoric acid group;
A dispersion composition for a display comprising a metal oxide.
11. The method of claim 10,
The dispersant, in the dispersion composition for a display, 1 wt% to 20 wt% will be included,
A dispersion composition for a display comprising a metal oxide.