JP2009157252A - Manufacturing apparatus for light control film, and method for manufacturing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus and a method for manufacturing a light control film with high productivity, the film scattering only the light incident at a specified angle and having angle dependence for the haze value. <P>SOLUTION: A light source lamp 3 is disposed away from a resin composition film so as to allow the axial direction of the light source lamp 3 to intersect the moving direction of the resin composition film. A plurality of thin light-shielding plates 6 are disposed between the resin composition film and the light source lamp 3, at a prescribed intervals along the same direction as the moving direction of a conveyer 1, with one side of the light-shielding plate 6 opposing the resin composition film so as to be substantially perpendicular to the moving direction. A light control film is formed by having the resin composition film irradiated with the light from the light source lamp 3 to be cured, while the resin composition film is moved. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a device for manufacturing a light control film and a method for manufacturing the same, and more particularly to a device for manufacturing a light control film having an angle dependency on the haze and a method for manufacturing the same.

  Conventionally, as a method for producing a light control film having a sufficient total light transmittance, a smooth surface and an angle dependency on the haze, at least two kinds of photopolymerizable monomers or oligomers having different refractive indexes from each other The photo-curable resin composition containing is formed into a film shape, and the light control film is formed by irradiating light at a predetermined angle from a linear light source while relatively moving the molded photo-curable resin composition film. A forming method has been proposed (see, for example, Patent Document 1). FIG. 8 shows a conventional photocured film manufacturing apparatus.

The manufacturing apparatus of FIG. 8 includes a conveyor 1 that rotates clockwise, a linear light source lamp 3 that is disposed above the conveyor 1, and a light shield that is disposed immediately above the conveyor 1 so as to face the conveyor 1 at a distance. And a plate 5. The light shielding plate 5 is formed with a rectangular opening 51 having a predetermined width extending in a direction perpendicular to the moving direction of the conveyor 1. In such a manufacturing apparatus, when the glass substrate 2 on which the photocurable resin composition film was formed was placed on the conveyor 1 and moved, it was adjusted to a predetermined irradiation angle by the opening 51 of the light shielding plate 5. The light from the light source lamp 3 is sequentially irradiated onto the photocurable resin composition film. As a result, a photocured film that scatters only incident light from a specific angle and has an angle dependency on the haze value is produced.
Japanese Unexamined Patent Publication No. 2-67501

  However, the proposed technique has a problem in that when the relative movement speed of the photocurable resin composition film is increased, the light irradiation amount is insufficient and a desired haze value cannot be obtained. For this reason, it has been difficult to increase the productivity of the photocured film with the conventional manufacturing apparatus.

  The present invention has been made in view of such a conventional problem, and an object of the present invention is to provide a manufacturing apparatus and a manufacturing method capable of manufacturing a light control film having an angle dependency on the haze with high productivity. It is in.

  Another object of the present invention is to provide a manufacturing apparatus and a manufacturing method that can be manufactured uniformly and continuously even if the light control film has a large area.

  As a result of various studies to achieve the above object, the present inventor made the present invention based on the idea that light emitted from a linear light source may be efficiently irradiated onto a photocurable resin composition film. It came. That is, the light control film manufacturing apparatus according to the present invention arranges a linear light source so as to be opposed to a photocurable resin composition film (hereinafter sometimes referred to as “resin composition film”), A manufacturing apparatus for forming a light control film by irradiating light from a linear light source and curing the photocurable resin composition film while moving at least one of the curable resin composition film and the linear light source, The axial direction of the linear light source intersects with the moving direction, and a plurality of thin plate-shaped light shielding members are arranged at a predetermined interval in the same direction as the moving direction between the photocurable resin composition film and the linear light source. In addition, one side of the light shielding member facing the photocurable resin composition film is provided so as to be substantially perpendicular to the moving direction.

  The ratio D / L between the installation interval D of the plurality of thin light-shielding members and the length L of the light-shielding member in the direction of the photocurable resin composition film is preferably in the range of 0.001 to 0.02. .

  From the viewpoint of increasing the angle dependency of the haze value of the photocured film to be produced, it is preferable to further provide a reflecting member that reflects the light from the linear light source into parallel light and irradiates the photocurable resin composition film. .

  As the photocurable resin composition, there are at least two types of photopolymerizable monomers each having a polymerizable carbon-carbon bond in the molecule and having a difference in the refractive index of the homopolymer obtained by homopolymerization. Or the thing containing an oligomer is suitable.

  Further, according to the present invention, at least two kinds of photopolymerizable monomers each having a polymerizable carbon-carbon bond in the molecule and having a difference in refractive index of a homopolymer obtained by homopolymerization or There is provided a method for producing a light control film in which a photocurable resin composition containing an oligomer is formed into a film and the resin composition film is cured using the production apparatus described above.

  The film thickness of the photocurable resin composition film is preferably 25 μm or more.

  According to the manufacturing apparatus and the manufacturing method of the present invention, a photocured film that scatters only incident light from a specific angle and has an angle dependency on the haze can be manufactured with high productivity. Further, even a large-area photocured film can be produced uniformly and continuously.

  Hereinafter, although the manufacturing apparatus and manufacturing method which concern on this invention are demonstrated based on figures, this invention is not limited to these embodiments at all.

  FIG. 1 is a perspective view showing an embodiment of a manufacturing apparatus according to the present invention. In addition, the same code | symbol is attached | subjected to the same member and part as FIG. 1 includes a conveyor 1 that rotates and moves in the direction of an arrow, a bar-shaped light source lamp (linear light source) 3 that is disposed above the conveyor 1 in a direction substantially orthogonal to the moving direction of the conveyor 1, and a conveyor. A light-shielding plate (light-shielding member) 5 having a square-shaped opening 51, which is installed immediately above the conveyor 1, and a reflector 4 provided on the side opposite to the conveyor side of the light source lamp 3. Between the conveyor 1 and the light source lamp 3, one side facing the photocurable resin composition film at a predetermined interval in the same direction as the moving direction of the conveyor 1 is substantially perpendicular to the moving direction of the conveyor 1. And a plurality of thin plate-like light shielding plates (light shielding members) 6 provided so as to be. The light shielding plate 5 is for preventing light from entering from outside the apparatus and hitting the resin composition film, and the effect of the present invention can be obtained even when the light shielding plate 5 is not attached.

  In such a manufacturing apparatus, a glass substrate 2 having a resin composition film (not shown) formed on the surface thereof is placed on the conveyor 1 and moved at a predetermined speed, and light from the light source lamp 3 is emitted from the resin composition. Irradiate the film. At this time, the light emitted from the light source lamp 3 enters the space between the light shielding plates 6 directly or after being reflected by the reflecting plate 4. As shown in FIG. 2, the reflecting plate 4 used here reflects light from the light source lamp 3 whose cross-sectional shape is a paraboloid to make parallel light. The mounting angle of the reflecting plate 4 is adjusted so that parallel light reflected by the reflecting plate 4 is substantially parallel to the light shielding plate 6. As a result, as shown in FIG. 3, the light almost parallel to the light-shielding plate 6 hits the resin composition film more than the conventional apparatus, and the resin composition can be increased even if the moving speed of the resin composition film is increased. The amount of light necessary for curing the object is irradiated. Moreover, since a lot of light hits the resin composition at substantially the same irradiation angle, the peak of the haze value curve of the obtained photocured film in the same direction as the moving direction of the conveyor 1 becomes sharp. In addition, substantially parallel and substantially vertical directions mean that a range of about ± 10 ° is allowed.

  In order to adjust the light scattering angle region of the light control film in the same direction as the moving direction of the conveyor 1 and exhibiting a haze value of a predetermined value or more, the light irradiation angle with respect to the resin composition film may be adjusted. That is, if the reflection plate 4 is swung in the circumferential direction of the light source lamp 3 and the plurality of light-shielding plates 6 are tilted while maintaining a distance from each other, the light irradiation angle with respect to the photocurable resin composition film is adjusted. Good. In addition, since the irradiation light with respect to the resin composition film | membrane in the orthogonal | vertical direction with respect to the moving direction of the conveyor 1 hits the resin composition film in the wide angle range from between the light shielding plates 6, the moving direction of the conveyor 1 of a photocuring film | membrane On the other hand, the haze value in the vertical direction has no angle dependence and shows a high value over the entire angle range.

  The reflecting plate 4 used in the present invention is not limited to the reflected light that is converted into parallel light, but a condensing light type using a condensing diffusion point as shown in FIG. 4 (FIG. 4A). ) And a condensing light type using a condensing point (FIG. 5B) can be used. However, from the viewpoint of efficiently irradiating the resin composition film with light from the light source lamp 3, a parallel light type reflector is desirable. An example of the parallel light reflector is a concave mirror.

  It is important that the light shielding plate 6 is installed at a predetermined interval in the same direction as the moving direction of the conveyor 1 so that one side facing the resin composition film is substantially perpendicular to the moving direction of the conveyor 1. is there. Thereby, the light irradiation angle in the same direction as the moving direction of the conveyor 1 is controlled. The shape of the light shielding plate 6 is not particularly limited as long as it is a thin plate shape. For example, as shown in FIG. 5, the length L of the light shielding plate 6 in the resin composition film direction is preferably in the range of 5 cm to 50 cm. A preferable lower limit is 10 cm, and a more preferable upper limit is 30 cm. The width W of the light shielding plate 6 is preferably in the range of 10 cm to 100 cm, the more preferable lower limit is 20 cm, and the more preferable upper limit is 50 cm. The thickness T of the light shielding plate 6 is preferably in the range of 0.01 mm to 5 mm, the more preferable lower limit value is 0.1 mm, and the more preferable upper limit value is 2 mm.

  Further, as the installation distance D of the light shielding plate 6 is reduced, the irradiated light can be made closer to a parallel light beam, but the region of the resin composition film facing the thickness of the light shielding plate 6 is not irradiated with light, and the cloudiness is uneven. It becomes easy to do. For this reason, the installation interval D of the light shielding plate 6 is preferably in the range of D / L = 0.001 to 0.02 in relation to the length L of the light shielding plate 6. If D / L is smaller than 0.001, the total thickness of the plate is relatively too large, and the region where the resin composition film is not irradiated with light is so large that it cannot be ignored. On the contrary, if D / L is larger than 0.02, the irradiation light with respect to the resin composition film does not become parallel rays, and the haze value is unfavorably caused by angle dependency. A more preferable lower limit value of D / L is 0.01, and a more preferable lower limit value is 0.1. On the other hand, a more preferable upper limit value of D / L is 0.15, and a more preferable upper limit value is 0.1.

  The installation position of the light shielding plate 6 is not particularly limited as long as it is between the light source lamp 15 and the resin composition film, but in order to narrow the light irradiation angle range, the lower end of the light shielding plate 6 can be made as the resin composition film as much as possible. It is preferable to install them close to each other.

  The material of the light shielding plate 6 and the light shielding plate 5 is not particularly limited, and glass, ceramics, metal, plastic, etc. can be used. However, the material is durable against strong light and heat from the light source lamp, and is physically Higher mechanical strength is preferred. Specifically, metals and alloys such as SUS, iron, and aluminum, and heat resistant polymer materials are preferably used. However, it is preferable to apply black coating, perform blackening treatment of metal, or perform electrostatic flocking so that light is not reflected as much as possible.

  The light source lamp 3 used in the present invention emits ultraviolet light or other light that contributes to the photopolymerization of the resin composition, and the light source has a linear shape when viewed from the irradiated position (the surface of the resin composition film). It is what has made. Using a rotating mirror and a concave mirror to make the light source appear to be linear when viewed from the irradiated position, for example, a series of many point light sources arranged linearly, or light from laser light, etc. Thus, an apparatus that scans (irradiates from one of the irradiated positions from a number of different angles) can also be used as the linear light source of the present invention.

  When the irradiation light is ultraviolet rays, the linear ultraviolet lamp is not particularly limited as long as it generates ultraviolet rays, but a mercury lamp or a metal halide lamp is usually preferable in consideration of ease of handling.

  In the manufacturing apparatus of the embodiment, the light source lamp 3 is fixed and the resin composition film formed on the glass substrate 2 is moved by the conveyor 1. However, the resin composition film is fixed and the light source lamp 3 is fixed. It may be moved, or both the resin composition film and the light source lamp 3 may be moved. However, in order to continuously photocure the belt-shaped resin composition film, it is preferable to fix the light source lamp 3 and move the resin composition film. The relative movement speed between the resin composition film and the light source lamp 3 is usually preferably in the range of 0.01 to 10.0 m / min, more preferably in the range of 0.1 to 5.0 m / min.

  The resin composition film is formed by coating the resin composition on a substrate such as a glass plate or a polyethylene terephthalate plate, or encapsulating the resin composition in a cell as in the above embodiment. do it. The substrate may be a single wafer or a continuous film. The film thickness of the resin composition film must be thick to some extent, and at least 25 μm is necessary. The preferable film thickness of the resin composition film is 100 μm or more, and more preferably 200 μm or more.

  The photocurable resin composition used in the present invention has at least two types of photopolymerization having a polymerizable carbon-carbon bond in each molecule and a difference in refractive index of homopolymers obtained by homopolymerization. Compositions containing possible monomers or oligomers are preferred. Here, the polymerizable carbon-carbon bond means a carbon-carbon double bond capable of addition polymerization or a carbon-carbon triple bond capable of addition polymerization. Specifically, for example, vinyl group, allyl group, styryl group, acryloyl group, methacryloyl group, acrylamide group, trans-1-oxo-2-butenoxy group, cinnamoyl group, butadiene structure, polymerizable conjugated bond, cyclopentene ring structure And the like, and the like. Among these, an acryloyl group and a methacryloyl group are preferable, and an acryloyl group is particularly preferable.

  Examples of the photopolymerizable monomer include tetrahydrofurfuryl acrylate, ethyl carbitol acrylate, dicyclopentenyloxyethyl acrylate, phenyl carbitol acrylate, nonylphenoxyethyl acrylate, 2-hydroxy-3-phenoxypropyl acrylate, and ω-hydroxy. Hexanoyloxyethyl acrylate, acryloyloxyethyl succinate, acryloyloxyethyl phthalate, isobornyl acrylate, 2-ethylhexyl acrylate, lauryl acrylate, 2,2,3,3-tetrafluoropropyl acrylate, phenyl carbitol acrylate, nonyl phenoxy Ethyl acrylate, 2-hydroxy-3-phenoxypropyl acrylate, 2,4,6-to Bromophenoxyethyl acrylate, 2,4,6-tribromophenyl acrylate, N-vinylpyrrolidone, N-acryloylmorpholine, 2-phenylphenyl acrylate, p-cumylphenyl acrylate, diphenylmethyl acrylate, 3-phenoxyphenyl acrylate And compounds having one polymerizable carbon-carbon double bond in the molecule, such as a methacrylate monomer corresponding to the acrylate.

  Also, for example, triethylene glycol diacrylate, polyethylene glycol diacrylate, neopentyl glycol diacrylate, 1,6-hexanediol diacrylate, hydrogenated dicyclopentadienyl diacrylate, trimethylolpropane triacrylate, pentaerythritol hexaacrylate , Ethylene oxide modified bisphenol A diacrylate, trisacryloxy isocyanurate, polyfunctional epoxy acrylate, polyfunctional urethane acrylate, methacrylates corresponding to these acrylates such as diethylene glycol bisallyl carbonate, divinylbenzene, triallyl isocyanurate, etc. Also included are compounds having a plurality of polymerizable carbon-carbon double bonds in the molecule.

  As the photopolymerizable oligomer, for example, polyester acrylate, polyol polyacrylate, modified polyol polyacrylate, isocyanuric acid skeleton polyacrylate, melamine acrylate, hydantoin skeleton polyacrylate, polybutadiene acrylate, epoxy acrylate, urethane acrylate, etc. Examples include acrylates and methacrylates corresponding to these acrylates. As a urethane acrylate oligomer, what is produced | generated by addition reaction of polyisocyanate, a polyol, and 2-hydroxyalkyl (meth) acrylate is illustrated. Here, examples of the polyisocyanate include toluene diisocyanate, isophorone diisocyanate, trimethylhexamethylene diisocyanate, and hexamethylene diisocyanate. Examples of the polyol include polyether polyols such as polyethylene glycol, polypropylene glycol, and polytetramethylene glycol.

  Here, the monomer or oligomer to be used is selected from those having a difference in refractive index of homopolymers obtained by homopolymerization. An area that scatters light, that is, a light scattering angle area, is formed by irradiating and curing light from a predetermined direction on a composition in which at least two kinds of photopolymerizable monomers or oligomers having different refractive indexes are mixed. The This composition expresses the angle dependency of the haze value due to the mutual solubility of each of a plurality of composing compounds and the difference in the respective refractive indexes. When the reaction rate is different, the degree of light scattering, that is, the haze value increases. This difference in refractive index is usually preferably 0.01 or more, and particularly preferably 0.02 or more.

  The photocurable resin composition used in the present invention may contain three or more monomers or oligomers having a polymerizable carbon-carbon bond in the molecule, and in that case, a homopolymer of these monomers or oligomers. Any two refractive index differences may be different. The mixing ratio of monomers or oligomers having a refractive index difference of 0.01 or more is usually in the range of 10:90 to 90:10 by weight ratio. Further, the compatibility of the monomer or oligomer is preferably low to some extent.

  In addition to the above-mentioned monomer or oligomer, the photocurable resin composition may be used in a range that does not interfere with light controllability, for example, polypropylene, polyethylene, polystyrene, polymethyl methacrylate, polyethylene oxide, polyvinyl pyrrolidone, polyvinyl alcohol, nylon, etc. Polymers such as toluene, n-hexane, cyclohexane, methyl alcohol, ethyl alcohol, acetone, methyl ethyl ketone, tetrahydrofuran, ethyl acetate, dimethylformamide, dimethylacetamide, acetonitrile, etc., organic halogen compounds, organosilicon compounds, plastics Plastic additives such as an agent and a stabilizer may be contained.

  When the photocurable resin composition is encapsulated in a cell to form a film, a photopolymerization initiator is not necessarily required because it is shielded from oxygen, but the photocurable resin composition is applied onto the substrate. In order to improve the degree of curing, it is desirable to mix a photopolymerization initiator in advance. Examples of the photopolymerization initiator that can be used here include benzophenone, benzyl, Michler ketone, 2-chlorothioxanthone, 2,4-diethylthioxanthone, benzoin methyl ether, benzoin ethyl ether, diethoxyacetophenone, benzyl dimethyl ketal, and 2-hydroxy. -2-methylpropiophenone, 1-hydroxycyclohexyl phenyl ketone and the like. The mixing amount of the photopolymerization initiator is usually in the range of 0.01 to 5 parts by weight, more preferably in the range of 0.1 to 3 parts by weight with respect to 100 parts by weight of the photocurable resin composition.

  By irradiating such a resin composition film with light, the photocurable resin composition is cured, and a layer having a special structure for scattering incident light is formed inside the film-like body. This layer is considered to have a structure in which microstructures having different refractive indexes are arranged in parallel in a specific direction. When the film thickness of the resin composition film is too small, formation of this microstructure layer is hindered. As the film thickness increases, the thickness of the microstructure layer also increases, and the light scattering performance (cloudiness value) increases, which is preferable. A suitable film thickness is 25 μm or more as described above.

  EXAMPLES Hereinafter, although an Example demonstrates this invention further in detail, this invention is not limited to these examples at all.

Example 1
For polypropylene glycol having an average molecular weight of about 3,000 and 40 parts by weight of polyether urethane acrylate (refractive index of 1.460) obtained by the reaction of toluene diisocyanate, hexamethylene diisocyanate and 2-hydroxyethyl acrylate, 2,4 , 6-tribromophenyl acrylate (I) 55 parts by weight (refractive index 1.58), 2,4-di-t-pentylphenyl acrylate 5 parts by weight and 2-hydroxy-2-methylpropiophenone (polymerization started) Agent) A photocurable resin composition mixed with 1.5 parts by weight was applied to a glass substrate on which a PET film having a thickness of 188 μm was pasted to a thickness of 240 μm.
And the produced resin composition film | membrane was irradiated with the ultraviolet-ray using the apparatus shown in FIG. 1, the photocurable resin composition was hardened, and the light control film | membrane was obtained. Here, the reflector 4 is a parallel light type, the light source lamp 3 is a linear mercury lamp of 80 W / cm, the moving speed of the conveyor 1 is 5.0 m / min, and the distance between the light source lamp 3 and the resin composition film is The distance between the light shielding plate 5 and the resin composition film was 70 cm, and the distance between the lower end of the light shielding plate 6 and the resin composition film was 10 cm. The opening 51 of the light shielding plate 5 was formed such that the angle with the light source lamp 3 was −9.5 ° to + 9.5 ° with respect to the normal line of the resin composition film surface. The light shielding plate 6 has a length L: 20 cm, a width W: 50 cm, a thickness T: 0.1 cm, and 21 sheets were installed with an installation interval D of 1 cm.

  About the obtained light control film | membrane, the haze value was measured with the glass substrate as follows. The haze value of the glass substrate itself can be ignored. The incident angle dependence of the haze value of the light control film was measured in the same direction as the moving direction of the conveyor. FIG. 6 shows the measured haze curve. In addition, Table 1 shows the maximum haze value, the minimum haze value, and the light scattering angle region where the haze value is 60% or more determined from the haze curve.

(Measurement of haze)
The haze value is obtained by using an integrating sphere light transmittance measuring device (Hazeguard Plus 4725 manufactured by Gardner) and setting the distance between the center of the light control film and the integrating sphere to 4 cm, and the total light transmittance of the light control film and The diffuse transmittance was measured and determined by the following formula.

  Further, the angle dependency of the haze value in the light control film was measured as follows. That is, as shown in FIG. 7, the incident angle θ of light to the test piece 8 of the light control film is changed between 0 ° and 180 °, and the above-described haze value is measured for each angle, and 60% The angle range showing the above haze value is defined as a light scattering angle region. Here, the angle θ is an angle formed between the light incident surface of the test piece 8 and the incident light, and the rotation of the test piece 8 is performed in a direction in which the angle dependency of the haze value is maximized. A and B shown in the figure are the same figure (a) (when light is incident on the test piece 8 from the vertical direction: θ = 90 °) and the same figure (b) (light is incident on the test piece 8 from the oblique direction). ), The reference numeral is attached so that the corresponding portion of the test piece 8 can be seen.

(Example 2)
A light control film was prepared in the same manner as in Example 1 except that the moving speed of the conveyor was 1.0 m / min, and the haze value was measured. The haze value curve of the obtained light control film is shown in FIG. Table 1 shows the maximum haze value, the minimum haze value, and the light scattering angle region where the haze value is 60% or more obtained from this haze curve.

(Example 3)
A light control film was prepared in the same manner as in Example 1 except that the moving speed of the conveyor was 0.5 m / min, and the haze value was measured. The haze value curve of the obtained light control film is shown in FIG. Table 1 shows the maximum haze value, the minimum haze value, and the light scattering angle region where the haze value is 60% or more obtained from this haze curve.

Example 4
A light control film was produced in the same manner as in Example 3 except that a concentrating reflector using a focal point diffusion point was used instead of the parallel reflector. The haze value curve of the obtained light control film is shown in FIG. Table 1 shows the maximum haze value, the minimum haze value, and the light scattering angle region where the haze value is 60% or more obtained from this haze curve.

  According to the manufacturing apparatus and the manufacturing method of the present invention, a photocured film that scatters only incident light from a specific angle and has an angle dependency on the haze can be manufactured with high productivity.

It is a perspective view which shows an example of the manufacturing apparatus which concerns on this invention. It is explanatory drawing of the reflecting plate used with the manufacturing apparatus of FIG. It is a front view of the manufacturing apparatus of FIG. It is a figure which shows the other reflecting plate which can be used by this invention. It is a perspective view of the light-shielding plate used with the manufacturing apparatus of FIG. It is a figure which shows the incident angle dependence of the haze in the light control film of Examples 1-4. It is a figure explaining the measuring method of the angle dependence of a haze. It is a perspective view which shows the conventional manufacturing apparatus.

Explanation of symbols

1 conveyor 2 glass substrate 3 light source lamp (linear light source)
4 Reflector (reflective member)
5 Light shielding plate (light shielding member)
6 Shading plate (shading member)
51 opening

Claims (6)

A linear light source is disposed so as to face the photocurable resin composition film at a distance, and at least one of the photocurable resin composition film and the linear light source is moved, and light is irradiated from the linear light source to photocure. A manufacturing apparatus for forming a light control film by curing a functional resin composition film,
The axial direction of the linear light source intersects with the moving direction,
A plurality of thin plate-shaped light shielding members are opposed to the light curable resin composition film of the light shielding member at a predetermined interval in the same direction as the moving direction between the light curable resin composition film and the linear light source. The light control film manufacturing apparatus is characterized in that one side is provided so as to be in a direction substantially perpendicular to the moving direction.   The ratio D / L between the installation interval D of the plurality of thin plate-shaped light shielding members and the length L of the light shielding member in the direction of the photocurable resin composition film is in the range of 0.001 to 0.02. The light control film manufacturing apparatus according to claim 1.   The light control film manufacturing apparatus according to claim 1, further comprising a reflecting member that reflects light from the linear light source into parallel light and irradiates the photocurable resin composition film.   The photocurable resin composition has at least two kinds of photopolymerizable monomers each having a polymerizable carbon-carbon bond in the molecule and having a difference in refractive index of a homopolymer obtained by homopolymerization. The apparatus for producing a light control film according to claim 1, which contains an oligomer.   Photocurable resin containing at least two kinds of photopolymerizable monomers or oligomers each having a polymerizable carbon-carbon bond in the molecule and having a difference in the refractive index of the homopolymer obtained by homopolymerization The manufacturing method of the light control film | membrane which shape | molds a composition in film shape and hardens a photocurable resin composition film | membrane using the manufacturing apparatus in any one of Claims 1-4.   The method for producing a light control film according to claim 5, wherein the film thickness of the photocurable resin composition is 25 μm or more.