KR101086927B1 - Light control film and its manufacturing method - Google Patents

Abstract

PURPOSE: A wide roll type light control film manufacturing method and a light control film manufactured by the same are provided to prevent a foreign material stain or fingerprint on the surface of a light control film. CONSTITUTION: A protection film(110) is adhered in one side surface of a louver layer film(100). A harmful wave barrier coating layer(120), surface light anti-refractive coating layer(130), a scratch preventing hard coating layer(140), and a pollution preventing nano silicon coating layer(150) are successively laminated on the upper surface of the protection film. A release sheet(160) is adhered in the upper surface of a pollution preventing nano silicon coating layer.

Description

Method of manufacturing light control film and light control film produced thereby

The present invention is attached to the display of a digital information device such as a monitor or a smart phone to see the contents of the screen appearing on the display only from the user's viewing angle, or if the user's viewing angle from the transparent layer through the line of sight, such as glass windows of the building It relates to a light control film that functions to block the.

Since its launch in the US in 1970, the louver film has been made with a transparent layer that transmits light and a light blocking layer that blocks light, and is called a light control film, a security film, or a privacy film. It is made of or in the form of a sheet.

The louver film made of a round billet is not specific in its resin composition or shading material, and its manufacturing method is not described in detail, so it is not easy for a person skilled in the art to realize, and its function as a louver film has no commercial value.

The louver film manufactured in the form of a sheet was formed by cutting a transparent film into squares and alternately stacking light-shielding materials to cut the stacked bulk vertically to produce a rectangular louver film. The film produced in this way is limited in size and low in productivity due to the individual manufacturing method rather than continuous production, so the price of the product was inevitably high.

The louver film manufactured as described above is formed by inserting a light blocking layer between transparent layers through which light is transmitted. When the light passes through the transparent layer, a part of the light strikes the light blocking layer when the light passes through the transparent layer. It is later reflected and passed through the transparent layer. The reflected light causes another image to be generated on the surface of the louver film when the angle is slightly inclined. This is called a virtual image or ghost image.

The light reflected from the light shielding layer is combined with the light passing through the transparent layer to prevent the appearance of virtual images. The light shielding layer is made of a structure having a high absorbance and a low absorbance layer, or transparent to produce roughness on the surface of the transparent film. The method of alternate lamination without drying the liquid ink containing the solvent that melts the film was provided, but the manufacturing process was very unreasonable and cumbersome, but the degree of reducing the virtual image (ghost image) was weak and the effect on reducing the virtual image was reduced. No scientific explanation has been provided for this.

In connection with the louver film as described above, a number of published patent technologies such as Patent Documents 1 to 5 are disclosed.

Patent document 1 (security film) has a long manufacturing process in the manufacturing method and the ink flows in the process of alternately laminating the liquid adhesive ink on the transparent film or to laminate a thin transparent film on the liquid adhesive ink It is cumbersome and troublesome, and it takes a long time to manufacture by stacking the laminated film in square bulk shape and cutting the laminated film one by one vertically, and attaching the cut film to each side one by one. In order to reduce the production efficiency and to reduce the surface reflection (imaging), the process of alternately laminating the transparent film without drying the liquid adhesive ink is an essential requirement.

Patent document 2 (optical filter and filter for a touch panel type display) does not specifically show a manufacturing method.

Patent document 3 (light control film with reduced image) provides the hassle of extruding a film layer structure in the form of 4 sheets, and provides only the material structure in which the manufacturing method is not specifically stated.

Patent Document 4 (LOVERED TRANSPARENT SHEETING MADE BY SKIVNG) is provided only a method of cutting in a circular shape, there is no specific description of the method and no specific process or method in the manufacture of the louver film.

Patent document 5 (manufacturing method of light-shielding adhesive sheet) is not only commercially available because the method of constituting the louver layer of the printing method with the ink layer is specified, and also the manufacturing method is not shown.

Patent Document 1: Republic of Korea Patent No. 10-500477 Patent Document 2: Republic of Korea Patent Publication No. 2003-0072397 Patent Document 3: Republic of Korea Patent No. 10-0249848 Patent Document 4: US Patent No. 3,524,789 Patent Document 5: Japanese Patent Application Laid-Open No. 7-315891

An object of the present invention is to produce a light control film in the form of a wide roll in a continuous process, to prevent the virtual image is made from the light control film, and to prevent the fingerprint or foreign substances of the hand on the surface of the light control film The present invention provides a method for manufacturing a control film and a light control film produced thereby.

The object of the present invention described above

(1) Applying heat and pressure to a circular roll or flat metal mold having irregularities formed on both surfaces of the transparent resin film wound in the form of a roll, and applying irregularities, and applying a light-shielding material to both surfaces of the unevenly processed transparent resin film; A first step of making the colors of the light blocking materials on both surfaces the same or different from each other; The transparent resin film coated with the light-shielding material of the first step is continuously cut into circular or polygonal holes with a central hole, and then laminated at an arbitrary height, and the laminated light-shielding material is laminated with the same or different colors. Step 2; After inserting the rotary shaft driven by the motor into the hole in the center of the laminated transparent resin film of the second step, after applying heat and pressure for a predetermined time to produce a bulk form, the rotary shaft is rotated by the motor to be laminated in a circular shape The outer circumferential surface of the transparent resin film is cut to a thickness of 0.05 mm to 2 mm, and this cut is wound into a roll of a louver layer made of a transparent layer and a light shielding layer, or manufactured in roll form, or the outer circumferential surface of the transparent resin film laminated in a polygon A third step of manufacturing a louver layer film having a louver layer composed of a transparent layer and a light shielding layer by vertically cutting or rotating cutting to a thickness of 0.05 mm to 2 mm; A protective film is adhered to one surface of the louver layer film of the third step, and the harmful wave blocking coating layer, the surface antireflective coating layer, the scratch prevention hard coating layer, and the anti-fouling nano silicon coating layer are laminated on the upper surface of the protective film in order, and then the nano-contamination prevention layer. A fourth step of bonding the release paper on the upper surface of the silicon coating layer; And attaching a protective film to the other surface of the louver layer film of the third step, laminating a primer coating layer on the upper surface of the protective film, and then applying an adhesive to the upper surface of the primer coating layer, and attaching a release paper to the upper surface of the adhesive. It is achieved by a method of manufacturing a light control film comprising the step.

(2) In the manufacturing method of the light control film of the present invention, the two louver layer films produced in the third step are vertically bonded to the other surface of the louver layer film in the fifth step to the third step. After cross-gluing the bonded louver crossover film is characterized in that it is bonded to the upper surface of the louver crossover film.

(3) In the manufacturing method of the light control film of the present invention, in the fifth step, the protective film is adhered to the other surface of the louver layer film of the third step, and the scratch-resistant hard coating layer is laminated on the upper surface of the protective film. It is characterized by having replaced by.

(4) In the manufacturing method of the light control film of the present invention, the fifth step is crosswise crosswise the two louver layer films produced in the third step on the other surface of the louver layer film of the third step. After adhering the bonded louver cross film, the protective film is adhered to the upper surface of the louver layer cross film, and a scratch-resistant hard coating layer is laminated on the upper surface of the protective film.

(5) In the manufacturing method of the light control film of the present invention, the sixth step of cutting the light control film of the fifth step in accordance with the shape of the screen of the applied product after cutting the sticker for removing the release paper on the edge of the release paper It further comprises a step.

(6) In the manufacturing method of the light control film of the present invention, after cutting and cutting the light control film of the fifth step to fit the screen shape of the applied product, after applying the adhesive to the edge of the scratch-resistant hard coating layer, the top surface of the pressure-sensitive adhesive It further comprises a sixth step of attaching the release paper to.

(7) In the manufacturing method of the light control film of the present invention, the antifouling nano silicon coating layer is finely pulverized silicon to a nano size of 0.000001 mm to 0.001 mm that does not adhere oil or moisture, and then a platinum catalyst on the silicon particles. , By mixing a silicone solvent, a silicone oil or a urethane resin to prepare a nano-silicon coating for preventing contamination and is characterized by coating with a micro roll or a mold.

(8) It is characterized by the light control film manufactured by the manufacturing method in any one of said (1)-(4).

By the above-described technical configuration of the present invention, the user can see the screen information more clearly by preventing the virtual image generated in the light control film, and improves productivity by continuously producing the light control film in the form of a wide roll in a continuous process. The manufacturing cost can be drastically lowered, and the contamination prevention silicon nano coating layer prevents contamination of the fingerprint, the oil, moisture, and foreign substances on the hands of the light control film that the user frequently touches.

1 is a block diagram of a transparent resin film produced in the form of a roll of the present invention.
FIG. 2 is a conceptual diagram of lamination of the transparent resin film manufactured in FIG. 1.
3 is a light control conceptual diagram of the louver layer film of the present invention.
Figure 4 shows the manufacturing method of the light control film of the present invention, (a) is a first embodiment, (b) is a second embodiment.
5 is a conceptual diagram of a method of manufacturing a louver cross film of the present invention.
Figure 6 shows a method of manufacturing the light control film of the present invention, (a) is a third embodiment, (b) is a fourth embodiment.

Hereinafter, the specific technical configuration of the manufacturing method of the light control film of the present invention will be described in detail with reference to four embodiments and accompanying drawings.

In general, light refers to visible light visible to the human eye with particles or wavelengths ranging from 0.0002 mm to 0.0007 mm. The transparent resin film used as the transparent layer of the light control film is a medium through which light is transmitted, and has a large and a small refractive index when light is transmitted. As the medium is smaller than visible light and the number of molecules is higher, the light travels more linearly, but the refractive index of the light varies depending on the link and arrangement of the molecules.

If you insert the chopsticks at an angle into the clear water in the transparent glass, the chopsticks will appear bent, and if the light is transmitted through the transparent glass at an angle, the light will be broken. If light is transmitted through the surface of transparent glass through which light passes well, then light is transmitted, and many light that reaches the rough surface does not pass through the glass, scatters and scatters from the surface, and only a small amount of light is transmitted. Done. At this time, the transmitted light will vary depending on the size and shape of the unevenness.

The present invention is a method of manufacturing a light control film by applying a light-shielding material and then laminating the film by applying a light-shielding material to both surfaces of the transparent resin film by using the refraction of the light, and also cut to a certain size It is a method of continuously manufacturing a transparent resin film with a wide roll, and it is a manufacturing method which can prevent the fingerprint, a foreign material, etc. of a hand from sticking to the surface of a film.

The manufacturing method of the light control film of the present invention consists of the first to sixth stages, among which the first to fourth stages are common to all four embodiments to be described below.

<Step 1>

Referring to FIG. 1, heat and pressure are applied to circular rolls or flat metal molds having irregularities formed on both surfaces of the transparent resin film 10 wound in the form of wide rolls to process the unevenness 11, and the unevenly processed transparent resin The light shielding material 20 is applied to both surfaces of the film 10, and the color of the light shielding material 20 on both surfaces is the same or different.

Here, the transparent resin film is made of PP, PE, PC, PVA, PVC, AC, CMA, OPP, CPP, etc., and the thickness is 0.01 mm to 0.5 mm (preferably 0.006 mm to 0.2 mm) or 0.5 mm to 2 mm (Preferably 0.2 mm to 2 mm), the width is 1000 mm to 3000 mm (preferably 500 mm to 3000 mm), and the length is 10 m to 10,000 m (preferably 100 m to 10000 m) and wound in a wide roll form. .

Concave-convex shape is processed into concave-convex shape with depth, size and shape that can scatter light. The shape is circular or irregular shape of polygons such as triangular or square. The transparent resin film can be continuously passed by placing circular rolls or flat metal molds with irregularities imprinted on the upper and lower sides where the transparent resin film passes in a plane so as to be within a size range (0.0002 mm to 0.0007 mm) that can cause refraction. When heat and pressure are applied to a circular roll or a flat die, it is wound in a roll while processing to form irregularities on both surfaces of the film continuously.

At this time, by adjusting the heat and pressure to be applied according to the physical properties and the material of the transparent resin film so that uniform unevenness can be generated. The unevenly formed transparent resin film is rolled into a roll and coated with a light blocking material that blocks light on both surfaces of the transparent resin film in the form of a roll.

Light blocking materials that block light are generally applied to inks used in resins, but are manufactured and used by adding and subtracting ingredients and materials as necessary. Additional materials include mica, silica, ground, gemstone powder, metal powder, zinc oxide, titanium oxide, cadmium, chromium, cobalt, alumina, white earth, carbon, urethane, vinyl resin, and urethane resin, which can reduce light reflectance and block rate , Acrylic resins, Ea, Tolen, Mek, alcohols, various dyes that can exhibit color, pigments and the like.

When the light-shielding material is applied to both surfaces of the transparent resin film, the number of coating is performed several times to control the thickness of the light-shielding material, preferably applied one to three times or three to six times continuously. The thickness of the light-shielding material to be applied may vary depending on the thickness of the transparent resin film or depending on the use and purpose, but is usually 0.001 mm to 0.1 mm.

<Step 2>

Referring to FIG. 2, the transparent resin film 10 coated with the light blocking material 20 of the first step is continuously cut into a circular or polygonal hole with a central hole, and then laminated at a predetermined height, but the light shielding material is laminated. Lay out the same or different colors.

Transparent resin film coated with light-shielding material is rolled again after drying process, or it is circular or polygonal with hole in the center to be laminated on the rotating shaft with a motor after being connected by cutting process continuously after drying process. The size of the cut is about 200 mm to 500 mm in diameter so that it can be machined with a rotating shaft. When it is 200 mm or less, productivity falls, and when it is 500 mm or more, the speed of rotary cutting falls and productivity falls too.

However, the size of the circle may be larger due to the development of cutting technology in the future. The hole in the center should be shaped so that the rotating shaft can be fixed and set according to the diameter or shape of the rotating shaft.

The stacking height is laminated by the thickness of the louver layer film to be manufactured, for example, about 500 mm to 2500 mm is preferable.

<Step 3>

Referring to Figure 2, after inserting the rotary shaft 40 driven by the motor 30 in the hole in the center of the laminated transparent resin film of the second step was produced by applying a heat and pressure for a predetermined time in a bulk form The rotary shaft 40 is then rotated by the motor 30 to cut the outer circumferential surface of the transparent resin film laminated in a circular shape to a thickness of 0.05 mm to 2 mm, and the cut louver layer formed of the transparent layer and the light shielding layer is wound on a roll. A louver layer having a louver layer composed of a transparent layer 50 and a light shielding layer 60 by vertically cutting or rotating cutting the outer circumferential surface of the transparent resin film, which is produced in a roll shape or laminated in a polygonal shape, or has a thickness of 0.05 mm to 2 mm. The film 100 is manufactured.

The laminated transparent resin film of the second stage installed on the rotating shaft is compressed by pressure when appropriate heat and pressure are applied due to the resin of the shading material, and gelled by the heat, and the shading materials are adhered to each other to form a bulk, and also with the rotating shaft. Bonding is made.

The temperature, pressure, and time applied here can be set in consideration of the physical properties, elasticity, thermal strain, and tensile rate of the transparent resin film containing the laminated light shielding material. The temperature is about 160 ° C. and the pressure is about 50 kg / cm 2 to 120 kg / cm 2, and the numerical value can be varied depending on the thickness of the laminate and the material properties of the transparent resin film and the light-shielding material within 2 hours.

The cutting thickness may vary depending on the application, but is usually 0.05 mm to 2 mm, preferably 0.05 mm to 0.5 mm.

The conventional louver layer film, which is not a louver layer film manufactured through the above-described first to third steps of the present invention, is a transparent layer through which light passes from the front side and a light shielding layer that blocks light from left and right sides outside the transmission angle. When the light is irradiated on the surface of the louver layer film, the light (actually) going straight to the transparent layer 1 made of a transparent resin film as shown in (a) of FIG. 3 is transmitted and partially diffused by the light diffusion phenomenon. The light hits the light shielding layer 2 of the light shielding material on the side and is reflected without being able to go straight. The reflected light is combined with the light transmitted from the transparent layer to form a virtual image on the side of the surface of the louver layer film.

However, when light is irradiated onto the surface of the louver layer film manufactured through the above-described first to third steps of the present invention, light (actually) is transmitted to the transparent layer 50 made of a transparent resin film as shown in FIG. However, some diffused light hits the light shielding layer 2 of the unevenness 11 of the side, and if the unevenness is set within a size range (0.0002 mm to 0.0007 mm) that can cause the refraction of visible light, Light reflected by hitting the layer is scattered by the unevenness 11 and is scattered to the surroundings, so that the light is no longer straight. If the reflection is not so prevented, virtual images are not generated on the side of the louver layer film. Therefore, the user can see the information on the screen more clearly.

<Step 4>

4 and 6, the protective film 110 is adhered to one surface of the louver layer film 100 of the third step, and the harmful wave blocking coating layer 120 and the surface light antireflective coating layer on the upper surface of the protective film in order. 130, the scratch-resistant hard coating layer 140, the anti-fouling nano silicon coating layer 150 is laminated, and then the release paper 160 is adhered to the anti-fouling nano silicon coating layer.

PP, PE, PVC, CPP, OPP, fluorine or resin coated paper is used as the protective film 110, the harmful wave barrier coating layer 120 is organically crushed with a metal, such as platinum, silver, alumina, crushed to a nano size The solvent is made of a mixed coating, the surface light antireflective coating layer 130 is made of a coating material mixed with an organic solvent by mixing silver (Ag) in the liquid silica of microparticle size or nanoparticle size liquid, hard to scratch The coating layer 140 is made of a coating agent mixed with an organic solvent by mixing a curing agent in silica or styrene or acrylic resin.

The anti-fouling nano silicon coating layer 150 is finely pulverized silicon to a nano size of 0.000001 mm to 0.001 mm (preferably 0.000001 mm to 0.0003 mm) that does not adhere oil or moisture, and then platinum catalyst, silicon to the silicon particles. It is made by mixing solvent, silicone oil or urethane resin to prepare nano silicon coating for pollution prevention, and drying by continuous coating with micro roll or mold. Therefore, even if user touches this nano silicon coating for pollution prevention by hand, fingerprint or foreign substance This will not stick.

The first to fourth steps of the light control film of the present invention described above are manufacturing steps common to all of the first to fourth embodiments of the present invention. Hereinafter, the fifth and sixth steps will be described. Reference to the description will be divided by embodiment.

[First Embodiment]

<Step 5>

Referring to FIG. 4A, after the protective film 110 is adhered to the other surface of the louver layer film 100 of the third step, the primer coating layer 170 is laminated on the upper surface of the protective film, and then the primer coating layer The adhesive 180 is coated on the upper surface of the adhesive, and the release paper 160 is attached to the upper surface of the adhesive.

The adhesive is well adhered by applying a primer coating, and an adhesive commonly used as acrylic or silicone adhesive is used as the adhesive.

<Step 6>

Referring to (a) of FIG. 4, after cutting and cutting the laminated film manufactured by the fifth step according to the screen shape of the applied product, the sticker for removing the release paper 300 is protruded and attached to the edge of the release paper 160. do.

The sticker is attached by protruding to one side of the laminated film so as to be easily grasped by hand for smooth removal of the release paper. The protruding portion of the sticker is easy to use within 10 mm, but its size may be changed as necessary.

[Second Embodiment]

<Step 5>

Referring to FIG. 4 (b), the louver layer intersecting the two louver layer films 100 manufactured in step 3 crosswise to the other surface of the louver layer film 100 of the third step and then bonded to each other. After adhering the film 200, the protective film 110 is adhered to the upper surface of the louver layer crossover film, the primer coating layer 170 is laminated on the upper surface of the protective film, and the adhesive 180 is applied to the upper surface of the primer coating layer. Then, the release paper 160 is attached to the upper surface of the pressure-sensitive adhesive.

Here, as shown in FIG. 5, the louver layer intersecting film 200 is formed by alternately stacking two louver layer films 100 horizontally and vertically crosswise. When the screen is dark, the information on the screen is blocked.

<Step 6>

Referring to Figure 4 (b), after cutting and cutting the laminated film prepared in the fifth step in accordance with the screen shape of the application product by sticking the release paper removal sticker 300 to the edge of the release paper 160 attached do.

[Third Embodiment]

<Step 5>

Referring to (a) of FIG. 6, the protective film 110 is adhered to the other surface of the louver layer film 100 of the third step, and the scratch-resistant hard coating layer 140 is laminated on the protective film. .

<Step 6>

Referring to FIG. 6A, after cutting and cutting the laminated film manufactured by the fifth step to fit the screen shape of the applied product, after applying the adhesive 180 to the edge of the scratch-resistant hard coating layer 140, Release paper 400 is attached to the upper surface of the pressure-sensitive adhesive.

The pressure-sensitive adhesive is applied to the corners in the size of the diameter range 5mm ~ 20㎜ in a circular or polygonal shape, and then attach the release paper 400 to protect the pressure-sensitive adhesive surface larger than the pressure-sensitive adhesive surface, wherein the size of the release paper 400 is When the user removes the release paper, the adhesive surface does not have fingerprints or protrudes to one side of the light control film.

[Fourth Embodiment]

<Step 5>

Referring to FIG. 6B, two louver layer films 100 prepared in step 3 are crosswise and transversely bonded to the other surface of the louver layer film 100 of the third step to cross the adhesive louver layer. After adhering the film 200, the protective film 110 is adhered to the upper surface of the louver crossover film, and the scratch-resistant hard coating layer 140 is laminated on the upper surface of the protective film.

<Step 6>

Referring to Figure 6 (b), after cutting the laminated film prepared by the fifth step to fit the screen shape of the application product after applying the adhesive 180 to the edge of the scratch-resistant hard coating layer 140 Release paper 400 is attached to the upper surface of the pressure-sensitive adhesive.

As described above, the laminated film manufactured in the form of a wide roll in the first to fifth steps is cut and cut in accordance with the screen shape of the applied product, for example, the monitor or the smartphone, in the sixth step. To easily attach it to the screen of a monitor or a smartphone, the front surface of the adhesive protected by the release paper on the other surface as in the first and second embodiments, or the release paper at the corners of the other surface as in the third and fourth embodiments. The pressure-sensitive adhesive protected by the part is coated to produce a light control film.

1,50: transparent layer 2,60: light shielding layer
10: transparent resin film 11: irregularities
20: light shielding material 30: motor
40: rotation axis 100: louver film layer
110: protective film 120: harmful wave blocking coating layer
130: surface light antireflection coating layer 140: scratch-resistant hard coating layer
150: anti-contamination nano silicon coating layer 160,400: release paper
170: primer coating layer 180: adhesive
200: louver crossover film 300: release paper sticker

Claims (8)

Applying heat and pressure to a circular roll or flat metal mold having irregularities formed on both surfaces of the transparent resin film 10 wound in the form of a roll to process the irregularities 11, and to both surfaces of the unevenly processed transparent resin film 10 A first step of applying the light blocking material 20 to make the color of the light blocking material 20 on both surfaces the same or different;
The transparent resin film 10 coated with the light shielding material 20 of the first step is continuously cut into a circular or polygonal hole with a central hole, and then laminated at any height, and the same color of the light shielding material is laminated. Or a second step of stacking differently;
After inserting the rotary shaft 40 driven by the motor 30 to the hole in the center of the laminated transparent resin film of the second step, by applying heat and pressure for a predetermined time to produce a bulk form after the rotation shaft 40 The outer circumferential surface of the transparent resin film rotated by the motor 30 to be laminated in a circular shape is cut to a thickness of 0.05 mm to 2 mm, and this cut is wound into a roll of a louver layer made of a transparent layer and a light shielding layer, and manufactured in roll form. Or, the outer peripheral surface of the transparent resin film laminated in a polygon is cut vertically or rotated to a thickness of 0.05mm ~ 2mm to produce a louver layer film 100 having a louver layer composed of a transparent layer 50 and a light shielding layer 60. Performing a third step;
The protective film 110 is adhered to one surface of the louver layer film 100 of the third step, and the harmful wave blocking coating layer 120, the surface antireflective coating layer 130, the scratch-resistant hard coating layer in order on the upper surface of the protective film ( 140), a fourth step of adhering the release paper 160 to the top surface of the anti-contamination nano silicon coating layer after laminating the anti-contamination nano silicon coating layer 150; And
After the protective film 110 is adhered to the other surface of the louver layer film 100 of the third step, the primer coating layer 170 is laminated on the upper surface of the protective film, and then the adhesive 180 is applied to the upper surface of the primer coating layer. , The manufacturing method of the light control film comprising a fifth step of adhering the release paper 160 on the upper surface of the pressure-sensitive adhesive. The method according to claim 1,
In the fifth step, the protective film 110 for adhering to the other surface of the louver layer film 100 of the third step is crosswise bonded to the two louver layer films 100 manufactured in the third step. Method of manufacturing a light control film, characterized in that after adhering the louver layer crossover film 200 is adhered to the top surface of the louver layer crossover film. The method according to claim 1,
The fifth step is replaced by attaching the protective film 110 to the other surface of the louver layer film 100 of the third step, and laminating a scratch-resistant hard coating layer 140 on the upper surface of the protective film. Method for producing a light control film. The method according to claim 1,
In the fifth step, the louver layer crossing film 200 bonded to the other surface of the louver layer film 100 of the third step by crosswise crossing two louver layer films 100 manufactured in the third step in a horizontal direction. After adhering the protective film 110 to the upper surface of the louver cross-layer film, the method of manufacturing a light control film, characterized in that by replacing the scratch-resistant hard coating layer 140 on the upper surface of the protective film. The method according to claim 1 or 2,
After cutting and cutting the laminated film prepared by the fifth step to fit the screen shape of the application product, and further comprising a sixth step of protruding and attaching the release paper removal sticker 300 to the edge of the release paper 160. Method for producing a light control film. The method according to claim 3 or 4,
After cutting and cutting the laminated film manufactured by the fifth step according to the screen shape of the applied product, after applying the adhesive 180 to the edge of the scratch-resistant hard coating layer 140 and attaching the release paper 400 to the upper surface of the adhesive Method for producing a light control film, characterized in that it further comprises a sixth step. The method according to any one of claims 1 to 4,
The anti-fouling nano silicon coating layer is finely pulverized silicon with a nano size of 0.000001 mm to 0.001 mm that does not adhere oil or moisture, and then mixed platinum catalyst, silicon solvent, silicone oil or urethane resin with the silicon particles to prevent nano A method of manufacturing a light control film, comprising producing a silicone coating agent and coating the same with a micro roll or a mold. Light control film produced by the manufacturing method of any one of claims 1 to 4.

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