OPTICAL FILM AND MANUFACTURING METHOD THEREOF

The present invention refers to various modification may have various can apply in the embodiment which is, in the embodiment example drawing and detailed description specific to the broadcast receiver.

However, the present invention is defined with respect to a particular embodiment form which are not included, all changing range of idea and techniques of the present invention, including the water to replacement should understood to evenly.

In the present invention, the term "comprising" or "having disclosed" specification of articles feature, number, step, operation, components, parts or specify a combination not present included, another aspect of one or more moveable number, step, operation, component, component or a combination of these is understood to presence of or additionally pre-times those possibility should not number.

In addition, in the present invention shown in the attached drawing for facilitating descriptions should understood to enlarged or reduced by the.

Hereinafter, the present invention is described therein that are directionally.

The optical film is according to one embodiment of the invention,

A metal oxide layer are sequentially formed on a substrate number 1, number 2 metal layers and metal oxide layers,

Said optical film is moisture transmittance (WVTR) 400 mg/m² Less than day, the oxygen transmittance (OTR) 0. 3 cc/m² Day can be less than disclosed.

The present invention according to the 400 mg/m (WVTR) moisture transmittance optical film² If day can be less than, specifically 300 mg/m² Less than day, more specifically 100 mg/m² Day can be less than disclosed. In particular, said moisture light transmission optical film 0. 1 to 10 mg/m² Day may be in the range disclosed.

The present invention according to the oxygen transmittance optical film (OTR) 0. 3 cc/m² Day may be less than, specifically 0. 2 cc/m² Less than day, more specifically 0. 1 cc/m² Day can be less than disclosed. In particular, said optical film oxygen light transmission 0. 0001 to 0. 01 cc/m² Day may be in the range disclosed.

The present invention according to said range when an oxygen transmittance moisture transmittance optical film, preventing the oxidation of the metal layer to the metallic layer by oxidation instructs an aromatic hydrocarbon can be minimize.

The present invention according to the optical film has the visible light range, for example, in the range of about 400 to 700 nm for light having a wavelength 550 nm wavelengths or either permeability 60% or more, 70% or more be a 65% or more. Said optical film comprises a transparent film can meet the numerical range can be useful. However, optical film and a light transmittance of the visible light range are not one number said numerical range, conventional applicable degree of visible-light transparent electrode may have light transmittance.

In addition, the optical film has in the infrared region, for example in the range of about 800 to 2500 nm to 780 nm or more optical permeability to 5 either wavelengths or 30%, or 20% hereinafter implementation being 10% hereinafter. Said optical film can meet the numerical range of thermal insulation can be in the infrared region is, for example, energy savings are possible disclosed.

The present invention according to the optical film is a metal oxide layer number 1, number 2 can be metal layer and metal oxide layer, the light transmittance of the visible light range and/or infrared spectral range, moisture and oxygen transmittance is guide properties of the, for example, metal oxide layer number 1, number 2 metal layer and metal oxide layer material, forming method, refractive index or to the thickness can be controlled by.

In the present invention can be based on metal oxide layer may means including layer, metal layer means including layer mainly containing a metal can. E.g., about 85% or more by weight means including metal oxide layer can be metal oxide layer, the metal layer is about 85 weight % or more can be means including metal layer.

The present invention according to optical film is applied sequentially formed metal oxide layer number 1, number 2 metal oxide-based material layer by oxidation of the metal layer can be defective. Specifically, the refractive index and thickness control number 1 and number 2 metal oxide layer can be adjusting the degree of visible light transmissive through serves, with respect to the metal layer to prevent moisture and oxygen in the metal can be oxidized.

The substrate is a plastic film will be a good transparency such as use of a good ancestry. For example, polyethylene terephthalate resin, polyethylene naphthalate resin, polybutylene terephthalate resin such as polyester resin, acetate-based resin, polyether sulfone resin, polycarbonate resin, polyimide resin, polyorganosilsesquioxane resin, (meta) acrylate resin, polyvinyl chloride resin, polystyrene resin, polyvinyl alcohol resin, polyarylate resin and polyphenylene sulfide resin including at least one synthetic resin film 1 can be selected. In particular, high strength including polyester resin film such as polyethylene terephthalate resin to enable can be.

Specifically number to said substrate to not one, can be appropriately set according to a place where the substrate is applied. For example, 10 to 200 micro m said substrate, specifically 10 to 150 micro m, more specifically 10 to 100 steps of micro m may have.

Number 1 and number 2 metal oxide layer having a refractive index of 1 550 nm wavelengths independently. 5 to 2. 5, specifically 1. 6 to 2. 4, more specifically 1. 7 to 2. Wednesday 3 1. Specifically, number 1 metal oxide layer having a refractive index number 2 metal oxide layer can be identical or different.

Metal layer having a refractive index of 0 550 nm wavelengths. 1 to 1. 5, specifically 0. 3 to 1. 5, more specifically 0. 5 to 1. Wednesday 5 nanometer range. In addition, number 1 and number 2 metal oxide layer has a refractive index difference layer in 550 nm 0. 5 to 1. 0, specifically 0. 5 to 0. 8, more specifically 0. 5 to 0. 75 may be in the range disclosed.

Metal layer, said metal oxide layer number 1 and number 2 when the composite layer is a metal oxide layer and the light transmittance of the visible light range also refractive index each height and thus the light transmittance in the infrared region and, infrared reflective optical film can be used.

Said metal layer, the metal oxide layer number 1 and number 2 metal oxide layer having a refractive index, for example, thickness can be controlled by. Or, in the vicinity of each layer can be controlled by deposition process. Specifically, with respect to the deposition conditions of each layer can be adjusting the degree of crystallization, the thickness and refractive index equal to or higher than and the same holes even if the user's personal persona. Publicly known method can be performed by deposition of said deposition process may, for example, can be performed by sputter method. More specifically, number 1 and number 2 metal oxide layer can be deposited by RF sputter type metal oxide layer, the metal layer can be deposited by DC sputter method.

For example, the present invention according to number 1 and number 2 metal oxide layer has a thickness independently 10 to 300 nm, specifically 20 to 200 nm, more specifically 10 to 100 nm implementation being. Said metal oxide layer by limitation of the thickness, refractive index or optical permeability to said metal oxide layer is regulated in the range for the hereinafter described and, to effectively prevent moisture and oxygen from being absorbed metal layers can, for metal oxide layer deposition is hereinafter disclosed.

In addition, metal layer has a thickness 5 to 30 nm, specifically 8 to 25 nm, more specifically 10 to 20 nm implementation being. When said metal layer thickness range, infrared reflectivity for visible light permeability ensure hereinafter disclosed.

As another example of, said number 1 and number 2 metal oxide layer independently antimony (Sb), barium (Ba), gallium (Ga), germanium (Ge), hafnium (Hf), indium (In), column mote [nyum (La), magnesium (Mg), namely (Se), silicon (Si), tantalum (Ta), titanium (Ti), vanadium (V), yttrium (Y), zinc (Zn), tin (Sn) and zirconium (Zr) comprising an oxide of at least one metal selected from the group consisting 1 can be.

In addition, the metal layer, platinum, gold, copper, chromium, aluminum, palladium and nickel to the entire 1 species can be more. Specifically, the metal layer, platinum or copper can be, more specifically may be silver disclosed. Such as by said metal layer to form a pure, optical film number can be tank costs.

The present invention according to optical film which comprises a base and further comprises a metal oxide layer can be formed between the hard S01 number 1. Specifically hard coating layer formed by hardening an organic layer or oil - inorganic hybrid layer, (meta) acrylate monomers and (meth) acrylate oligomer including at least one of organic composition; or organic composition silica (silica), zirconia (zirconia) or alumina (alumina) can be formed as the inorganic particles. 1 to 10 micro m thickness can have a hard S01 said by forming such as, metal oxide layer and the metal layer is increased and the mechanical strength of optical film such as a coating formed on the over coating in direction [syang..copyright 2001. If necessary can be omitted disclosed.

In addition, the present invention according to the optical film has an overcoating layer can be formed on the metal oxide layer further includes a number 2. Specifically over coating layer formed by hardening an organic layer or oil - inorganic hybrid layer, (meta) acrylate monomers and (meth) acrylate oligomer including at least one of organic composition; or organic composition silica (silica), zirconia (zirconia) or alumina (alumina) can be formed as the inorganic particles. Thickness 0. 01 to 0. 2 can have an overcoating layer by forming said micro m such as, metal oxide layers to adapted for use or can be prevented from deteriorating. If necessary can be omitted disclosed.

Furthermore, the present invention according to an optical film includes a number 2 of the metallic layer and metal oxide layer further comprises a metal oxide layer on layer 1 can be. For example, a substrate metal oxide layer and metal layer 2 repeatedly undergoing at least be a stacked structure. In addition, are formed in the hard coating layer having a substrate, a hardcoat layer on the metal oxide layer and metal layer while reducing bending repeatedly undergoing at least 2, wherein the last metal layer metal oxide layer, metal oxide layer can be formed over coating layer having a structure. Various layers of said metal layer and a metal oxide layer such as by, increasing transmittance than the wavelength of visible light range in the infrared region to increase optical catalyst that more effectively blocking only...copyright 2001.

Number 1 and number 2 metal oxide layer comprises at least one polymer in the present invention according to optical film air is commercially available window film formed metal oxide layer contrast density 2. 5% or more, specifically 3% can be increased over 5% or more. More specifically 5 to 10% number 1 and number 2 is connected with a brake metal oxide layer increased density relatively range etc..

The present invention according to the optical film has window film be a.

The looked to 1 also, in the embodiment of the present invention one optical film disclosed is a multilayer structure disclosed. Substrate (10) number 1 on the metal oxide layer (21) is formed, the metal oxide layer number 1 (21) one metal layer (30) is provided which has, said metal layer (30) number 2 on a metal oxide layer are laminated.

The heat also 2, in the embodiment of the present invention the height of one optical film, substrate (10) on a hardcoat layer (11) is formed, a hardcoat layer (11) number 1 on the metal oxide layer (21), metal layer (30) and number 2 metal oxide layer (22) while reducing bending repeatedly, number 2 metal oxide layer (22) on the over coating (12) stacked disclosed.

In addition, in the present invention refers to one in the embodiment,

A substrate number 1 metal oxide layer;

Forming a metal layer on the metal oxide layer number 1; and

Forming a metal oxide layer including a metal layer number 2 optical film manufacturing method number [...] substrate.

The present invention according to the optical film manufacturing method, sputter by using 0. 5 to 5 W/cm² And 0. 2 to 10 mTorr conditions and a metal layer on a substrate can be. Specifically 0. 8 to 4. 5 W/cm² And 0. 5 to 8. 5 mTorr conditions, more specifically 1. 0 to 4. 0 W/cm² And 0. 8 to 6 mTorr conditions and a metal layer on a substrate can be. Specifically, number 1 and number 2 metal oxide layer can be formed by RF sputter mode or a DC sputter type, more specifically DC can be formed by sputter method. Said boat and the conditions such as when, dense quality oxygen permeability and excellent moisture permeation to form a metal oxide layer thereby preventing oxidation of the metal layer can be...copyright 2001.

Metal layer sputter method by using 0. 5 to 5 W/cm² And 0. 2 to 10 mTorr conditions can be forming a metal layer on a metal oxide layer. Specifically 0. 8 to 4. 5 W/cm² And 0. 5 to 8. 5 mTorr conditions, more specifically 1. 0 to 4. 0 W/cm² And 0. 8 to 6 mTorr conditions can be formed a metal layer on a metal oxide layer. Specifically, the metal layer can be formed by RF sputter mode or a DC sputter type, more specifically DC can be formed by sputter method. Such as when said boat and the conditions, moisture permeation and oxygen permeability by forming a dense metal layer performed 0.5 or 1.

Hereinafter the present invention in the embodiment according to the present invention by a reduction in more detailed but, in the embodiment of the present invention to [...] number by one and not the number range.

In the embodiment of the present invention refers to a higher can be know better, in the embodiment of the present invention to form for example which is the scope of protection defined by appended claim relayed a number that is even endured.

Comparison example 1

Commercially available window film (optical film) as well as seller.

Specifically, number 1 onto the substrate metal forming the oxide layer, a metal oxide layer is a metallic layer on said number 1, number 2 metal oxide layer on metal layer said optical film number was high pressure liquid coolant.

Comparison example 2

Number 1 and number 2 contrast comparison example 1 metal oxide layer formed on the relatively low density and number [...], optical film was equal to the number comparison example 1 high pressure liquid coolant.

In the embodiment 1.

The hard plastic substrate formed thereon by using DC Sputter S01 2 micro m 1. 5 W/cm² Depositing a metal oxide layer has a thickness of 30 nm ZnO conditions 3 mTorr and a number 1 weight percent. DC sputter metal oxide layer by using said number 1 on 1. 5 W/cm² 3 mTorr conditions and 15 nm evaporation method Ag metal layer, said metal layer number 2 metal oxide layer 1. 5 W/cm² A 30 nm thickness was deposited ZnO conditions and 3 mTorr. The, number 1 and number 2 in comparison example 1 was deposited metal oxide layer density contrast. Finally, number 2 number was 50 nm optical film with a light-metal oxide layer on a layer through high pressure liquid coolant. Optical film number was high pressure liquid coolant.

Experiment example

In the embodiment and comparison against the film in oxygen permeability measuring moisture permeation and each optical prepared by the number was embodiment experiments. Specifically, moisture transmission experiments using MOCON AUATRANS Model 38 °C, 100% RH conditions, have performed based on ASTM F provided 1249, oxygen transmission experiments using MOCON OX-a TRANS Model 12/21 10x 23 °C, 0% RH conditions, based on ASTM D provided 3985 conducting. Experiment corresponded to efined shown in table 1.

With reference to the table 1, in the embodiment 1 and comparison example 1 and comparison example 2 optical film is prepared by the number value is relatively high in moisture permeability and oxygen permeability can be boosted. I.e., number 1 and number 2 metal oxide layer to increase the information density optical film comprises a metal oxide layer deposition can be ascertained and having good moisture transmission and oxygen [...], metal from that of a layer are moisture and oxygen can be effective.