JPWO2018084052A1 - Optical panel, method of manufacturing the same, and apparatus - Google Patents

Abstract

As an optical panel 100 that does not require the presence of fine particles to perform an antireflective function, the optical panel 100 includes a light transmitting substrate 10 and an appearance layer 20 located on the substrate 10, and the appearance layer 20 is A first region R1 having a relatively low reflectance of incident light from the appearance layer 20 side of the optical panel 100 and a second region R2 having a relatively high reflectance, and the appearance layer 20 includes a first resin material and An optical panel 100 is provided which includes a second resin-based material, a surface R1A of the first region R1 is made of the first resin-based material, and includes projecting point groups 21 that project in the thickness direction of the appearance layer and scatter external light. Ru.

Description

  The present invention relates to an optical panel, a method of manufacturing the same, and an apparatus including the optical panel described above.

  Patent Document 1 discloses an antireflective film laminated on a transparent substrate, wherein the antireflective film comprises a transparent resin and fine particles dispersed in the transparent resin, and the closest particles of the fine particles to each other The average distance between the centers of the particles is in the range of 50 to 800 nm, the arrangement structure of the fine particles in the antireflective film is an amorphous structure, and the average height of the protrusions on the surface of the antireflective film is 40 to There is disclosed an anti-reflection film characterized in that a concavo-convex shape in the range of 500 nm is formed.

JP, 2009-139796, A

  In the anti-reflection film described in Patent Document 1, fine particles dispersed in the film make asperities on the surface of the anti-reflection film, and the asperity scatters external light to perform anti-reflection. And in order to form this unevenness | corrugation, the process which selectively removes the matrix material which microparticles | fine-particles disperse | distribute is performed. That is, in the antireflective film described in Patent Document 1, the presence of the matrix material and the fine particles whose removal processability is sufficiently different from this material is indispensable. For this reason, when it is not desirable to make fine particles in the antireflective film, the antireflective film described in Patent Document 1 can not be used. In addition, even when it is desired to allow the presence of fine particles in the antireflective film, the presence of fine particles sufficiently different in removal processability from this matrix material becomes essential, so the degree of freedom in selecting the fine particles becomes extremely low. .

  An object of the present invention is to provide an optical panel which does not require the presence of fine particles to perform an antireflective function. Another object of the present invention is to provide a method of manufacturing such an optical panel and an apparatus provided with the above-described optical panel.

  The present invention provided to solve the above problems is, in one aspect, an optical panel comprising a light-transmissive substrate and an appearance layer located on the substrate, the appearance The layer includes a first region having a relatively low reflectance of incident light from the outer appearance layer side of the optical panel and a second region having a relatively high reflectance, and the outer appearance layer is made of a first resin A material and a second resin-based material, wherein the surface of the first region is provided with a projecting point group which is made of the first resin-based material and protrudes in the thickness direction of the appearance layer to scatter external light. Optical panel.

  The above-described optical panel according to the present invention realizes an anti-reflection function of scattering external light by a group of protruding points made of a resin-based material. Therefore, the inclusion of fine particles in the appearance layer is separated from the expression of the antireflective function. Therefore, it is possible to increase the design freedom of the composition of the appearance layer.

  In the above-described optical panel, the first region may be different in composition in the thickness direction of the appearance layer. In this case, the ratio of the content of the first resin-based material to the content of the second resin-based material on the side opposite to the side facing the base is the first on the side facing the base The ratio of the content of the resin-based material to the content of the second resin-based material may be higher.

  In the above-mentioned optical panel, the projected point group may project beyond the surface of the second area.

  In the above-described optical panel, the first region and the second region may have the same overall composition, and may have a different composition distribution in the thickness direction of the appearance layer. In this case, the materials for forming the appearance layer are common to the first region and the second region, and the first region and the second region are formed separately by performing different processes. Can.

  In another aspect, the present invention provides an optical panel comprising a translucent substrate and an appearance layer located on the substrate. In the optical panel, the appearance layer includes a first resin-based material and a second resin-based material, and the surface of the appearance layer is made of the first resin-based material in at least a part of the area. A projecting point group that protrudes in the thickness direction of the light source and scatters external light.

  Such an optical panel can also increase the design freedom of the composition of the appearance layer, similarly to the optical panel provided with the first area and the second area described above.

  In the above-described optical panel, the region including the protruding point group may have a different composition in the thickness direction of the appearance layer. In this case, the ratio of the content of the first resin-based material to the content of the second resin-based material on the side opposite to the side facing the base is the first on the side facing the base The ratio of the content of the resin-based material to the content of the second resin-based material may be higher.

  In the above-mentioned optical panel, the appearance layer may further contain a filler component, and the appearance layer may not contain a filler component.

  In the above optical panel, the first resin material may include a polymer of an ionizing radiation polymerizable first substance, and the second resin material may be an ionizing radiation polymerizable different from the first substance. And a polymer of the second substance of In this case, the appearance layer may further contain a polymerization initiator. Moreover, you may contain the 3rd substance which has compatibility with respect to said 1st substance. The third substance is preferably a phenolic compound, more preferably a phenolic compound having a melting point of 100 ° C. or less, particularly preferably a hindered phenolic compound. By including the third substance, the smoothness and the optical characteristics of the second region may be enhanced.

  According to another aspect of the present invention, there is provided an optical panel comprising: a light transmitting substrate; and an appearance layer having a surface located on the substrate and having a projecting point group for scattering external light. Provide a way. This manufacturing method comprises: an ionizing radiation polymerizable first substance; an ionizing radiation polymerizable second substance different from the first substance; and a first solvent which dissolves the first substance more easily than the second substance. A liquid containing a second solvent which dissolves the second substance more easily than the first substance and which has a boiling point higher than that of the first solvent is applied to one surface of the base material; A first step of forming a coating film on the coating film; by depositing the first substance-containing precipitate on the surface of the coating film by volatilizing the first solvent contained in the coating film; And irradiating the ionizing radiation to at least a partial area of the deposited coating to polymerize the first substance and the second substance located in the area irradiated with the ionizing radiation. Comprising a step, said third step Wherein the surface comprises the projecting point group appearance layer.

  By forming the appearance layer by such a manufacturing method, the appearance layer having an antireflective function can be manufactured with few restrictions on composition, and in particular without the necessity of containing a filler component.

  In the above manufacturing method, in the third step, the entire appearance of the deposition coating may be formed from the deposition coating by irradiating the ionizing radiation to the entire deposition coating. . By adopting this manufacturing method, it is possible to manufacture an appearance layer having an antireflection function on the entire surface.

  In the above manufacturing method, the appearance layer is composed of a first region having a surface provided with the protruding point group and a second region having a surface not provided with the protruding point group, and in the third step, the deposition is performed. The first substance and the second substance located in the first coating area are polymerized by irradiating the first coating area, which is a partial area of the coating, with the ionizing radiation, and the first substance is polymerized. Forming a region, and heating the second coating region which is not irradiated with the ionizing radiation in the deposited coating, following the third step, to enhance the surface smoothness of the second coating region; And irradiating the second coating film region having the enhanced surface smoothness with ionizing radiation to polymerize the first substance and the second substance located in the second coating film area; Equipped with a fifth step to form two regions It may be. By adopting this manufacturing method, it is possible to manufacture an appearance layer including a first region having an antireflective function and a second region not having an antireflective function.

  In the above manufacturing method, the liquid may further contain a filler component. In this case, the appearance layer contains a filler component. In the above manufacturing method, the liquid may not contain a filler component. In this case, the appearance layer contains no filler component. Thus, by changing the composition of the liquid, it can be set whether the appearance layer contains a filler component.

  In the above production method, the liquid may contain a polymerization initiator. In this case, the polymerization of the first substance and the second substance can be performed by irradiation of an electromagnetic wave such as visible light or ultraviolet light.

  In the above manufacturing method, in the fourth step, heating may be performed so as to melt the precipitate of the first substance in the deposition coating. In the deposited coating film, the surface of the deposited coating film is roughened by the precipitates of the first substance. Therefore, by dissolving the precipitates of the first substance, the smoothness of the surface can be enhanced.

  The liquid body may contain a third substance having compatibility with the first substance. In this case, the precipitate containing the first substance formed in the second step contains the third substance, and the precipitate containing the first substance has a melting point lower than that of the precipitate consisting of the first substance. Is preferred. The third substance is preferably a phenolic compound, more preferably a phenolic compound having a melting point of 100 ° C. or less, particularly preferably a hindered phenolic compound. By including the third substance, the smoothness and the optical characteristics of the second region may be enhanced.

  The present invention provides, as another aspect, an apparatus comprising the optical panel according to the above aspect of the present invention.

  In another aspect, the present invention provides a transfer body comprising a transfer layer having a transfer source surface. In the transfer body, the transfer layer includes a first resin material containing a polymer of an ionizing radiation polymerizable first substance, and a polymer of an ionizing radiation polymerizable second substance different from the first substance. The transfer source surface includes a projecting point group which is made of the first resin-based material and which protrudes in the thickness direction of the transfer layer to scatter external light, and the transfer source in the transfer layer includes the second resin-based material. In the region including the surface, the composition is different in the thickness direction of the transfer layer, and the ratio of the content of the first resin material to the content of the second resin material on the transfer source surface side is the transfer The ratio of the content of the first resin-based material to the content of the second resin-based material on the side opposite to the original surface side is higher. Thus, the appearance layer of the optical panel according to the present invention can be used as a transfer layer having a transfer source surface for forming a transfer surface on a transfer target. The above-mentioned transfer body may contain a third substance having compatibility with the first substance. The third substance is preferably a phenolic compound, more preferably a phenolic compound having a melting point of 100 ° C. or less, particularly preferably a hindered phenolic compound.

  According to another aspect of the present invention, there is provided a method of manufacturing a transfer body including a transfer layer having a transfer source surface including a projecting point group that scatters external light. This manufacturing method comprises: an ionizing radiation polymerizable first substance; an ionizing radiation polymerizable second substance different from the first substance; and a first solvent which dissolves the first substance more easily than the second substance. A liquid containing a second solvent which dissolves the second substance more easily than the first substance and which has a boiling point higher than the first solvent is applied to one surface of the base material, and the base material is coated on the base material. A first step of forming a coating film; by depositing the first substance-containing precipitate on the surface of the coating film by volatilizing the first solvent contained in the coating film, a deposited coating film is obtained A second step; and a third step of polymerizing the first substance and the second substance located in the area irradiated with the ionizing radiation by irradiating the ionizing radiation to at least a partial area of the deposited coating film. And, in the third step, The transfer flank with a point cloud is formed.

  In the method of manufacturing a transfer body as described above, the transfer layer includes a first area having a surface provided with the protruding point group and a second area having a surface not provided with the protruding point group, and in the third step The first substance and the second substance located in the first coating region are polymerized by irradiating the first coating region, which is a partial region of the deposited coating, with the ionizing radiation; The first coating region is formed, and following the third step, the second coating region not irradiated with the ionizing radiation in the deposited coating is heated to make the surface smoothness of the second coating region A fourth step of enhancing; and irradiating the second coating film area having the enhanced surface smoothness with ionizing radiation to polymerize the first substance and the second substance located in the second coating film area; A fifth step forming the second region It may be provided with a flop. According to this manufacturing method, it is possible to provide a surface with excellent smoothness on the surface on which the transfer source surface of the transfer layer is located.

  In the method of manufacturing a transfer body described above, in the fourth step, heating may be performed so as to melt the precipitate containing the first substance in the deposited coating film. In this case, the liquid contains a third substance having compatibility with the first substance, and the precipitate containing the first substance formed in the second step contains the third substance, and The precipitate containing one substance is preferably lower in melting point than the precipitate consisting of the first substance. The third substance is preferably a phenolic compound, more preferably a phenolic compound having a melting point of 100 ° C. or less, particularly preferably a hindered phenolic compound.

  According to the present invention, there is provided an optical panel which does not require the presence of fine particles to perform an antireflective function, a method of manufacturing such an optical panel, and an apparatus comprising the optical panel described above.

It is a fragmentary sectional view showing typically the structure of the optical panel concerning one embodiment of the present invention. It is a flowchart which shows the manufacturing method of the optical panel which concerns on one Embodiment of this invention. It is a fragmentary sectional view showing typically the manufacturing method (the 1st step) of the optical panel concerning one embodiment of the present invention. It is a fragmentary sectional view showing typically the manufacturing method (the 2nd step) of the optical panel concerning one embodiment of the present invention. It is a fragmentary sectional view showing typically the manufacturing method (3rd step) of the optical panel concerning one embodiment of the present invention. It is a fragmentary sectional view showing typically the manufacturing method (after the 3rd step) of the optical panel concerning one embodiment of the present invention. It is a fragmentary sectional view showing typically the manufacturing method (the 4th step) of the optical panel concerning one embodiment of the present invention. It is a fragmentary sectional view showing typically the manufacturing method (the 5th step) of the optical panel concerning one embodiment of the present invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same components are denoted by the same reference numerals and the detailed description will be appropriately omitted.

  FIG. 1 is a partial cross-sectional view schematically showing an optical panel according to an embodiment of the present invention.

  As shown in FIG. 1, an optical panel 100 according to an embodiment of the present invention includes a light transmitting base material 10 and an appearance layer 20 located on the base material 10.

  The material which comprises the base material 10 is not limited as long as it has appropriate translucency. Examples of such a material include polyethylene terephthalate, polycarbonate, acrylic resin, glass and the like. The substrate may be composed of a laminated structure of a plurality of members.

  The appearance layer 20 may be provided so as to be in direct contact with the substrate 10 as shown in FIG. 1, or even if there is an intervening layer between the substrate 10 and the appearance layer 20. Good. Such an intervening layer, like the substrate 10, should have appropriate translucency.

  The appearance layer 20 includes a first region R1 in which the reflectance of incident light from the appearance layer 20 side of the optical panel 100 is relatively low, and a second region R2 in which the reflectance is relatively high. The appearance layer 20 includes a first resin-based material and a second resin-based material. The surface R1A of the first region R1 is provided with a projecting point group 21 which is made of a first resin material and which protrudes in the thickness direction of the appearance layer 20 and scatters external light.

  The specific composition of the first resin material and the second resin material is not limited. It may contain a polymer of an ionizing radiation polymerizable substance such as an acrylic resin or an epoxy resin. In the present specification, "ionizing radiation" can directly or indirectly ionize atoms and molecules such as light (including infrared light, visible light, and ultraviolet light), electromagnetic waves such as X-rays, and electrons. Mean radiation.

  The first resin-based material and the second resin-based material may have different compositions or be in common. As one specific example, the first resin material includes a polymer of an ionizing radiation polymerizable first substance, and the second resin material includes a polymer of an ionizing radiation polymerizable second substance different from the first substance. Including. In this case, the appearance layer 20 may contain a polymerization initiator. Specific examples of the polymerization initiator include photopolymerization initiators such as α-hydroxyalkylphenone and bis (2,4,6-trimethylbenzoyl) -phenylphosphine oxide.

  In the second region R2 of the appearance layer 20 shown in FIG. 1, the entire thickness direction of the appearance layer 20 is formed of a layer 24 made of a mixed material of a first resin material and a second resin material.

  The thickness of the appearance layer 20 is not limited. If illustrated as an example, the thickness of the appearance layer 20 may be 0.001 μm or more and 200 μm or less, and preferably 1 μm or more and 20 μm or less.

  Since the first region R1 of the appearance layer 20 includes the protruding point group 21, the reflectance of the incident light from the side of the appearance layer 20 of the optical panel 100 is lower than the similar reflectance in the second region R2. Specifically, in the first region R1 of the appearance layer 20, the total light reflectance defined in JIS K7375: 2008 may be 10% or less and preferably 5% or less.

  As described later, in the appearance layer 20, the filler component is an optional component.

  The ratio and size of the size in the entire appearance layer 20 of the first region R1 and the ratio and size of the size in the entire appearance layer 20 of the second region R2 should be appropriately set according to the application. In the optical panel 100 shown in FIG. 1, the first region R1 is located at the center of the appearance layer 20 in plan view, and the second region R2 is located so as to surround the first region R1 in plan view. Not limited to this. The appearance layer 20 may have a region other than the first region R1 and the second region R2.

  Since the first region R1 scatters external light in the protruding point group 21, the surface (first region surface) R1A including the protruding point group 21 is a rougher surface than the surface of the second region R2. Specifically, in the first region surface R1A, the maximum height Rz of the surface roughness defined in JIS B0601: 2001 is preferably 0.5 μm or more, more preferably 1 μm or more, 1 It is particularly preferable that the thickness is 0.5 μm or more. Although the upper limit of the surface roughness of the first region surface R1A is not limited, when the surface roughness of the first region surface R1A is excessively large, the light transmittance of the optical panel 100 may be reduced. In the optical panel 100, the total light transmittance defined in JIS 7375: 2008 is 50% or more (preferably 70% or more, more preferably 90% or more), for example, when the base material 10 is made of plastic. The surface roughness of the first region surface R1A should be set to have a certain degree of light transmission.

  As shown in FIG. 1, the projected point group 21 located on the first area surface R1A protrudes more than the surface (second area surface) R2A of the second area R2. By arranging the protruding point group 21 in this manner, it may be possible to increase the degree of freedom of the composition in the portion other than the protruding point group 21 of the appearance layer 20. For example, the antireflective film described in Patent Document 1 has a structure in which fine particles are dispersed in a transparent resin, and the transparent resin is selectively removed to form asperities on the surface to prevent reflection. A surface having a function is formed. Therefore, the surface of the region in which the unevenness (corresponding to the protruding point group 21 of the appearance layer 20) is formed is more inevitably recessed than the surface of the area having no unevenness.

  The overall composition of the first region R1 and the second region R2 may be equal, and the composition distribution in the thickness direction of the appearance layer 20 may be different. In this case, as described later, there are cases where it is possible to form the first region R1 and the second region R2 by adjusting the process from a common member, and in this case, the optical panel 100 has productivity. And therefore, the quality stability is also excellent.

  In the appearance layer 20 provided in the optical panel 100 shown in FIG. 1, the composition of the first region R1 differs in the thickness direction of the appearance layer 20. Specifically, in the thickness direction of the appearance layer 20, it has at least a two-layer structure of the upper layer portion 22 on the surface side (including the projecting point group 21. The same applies hereinafter) and the lower layer portion 23 on the substrate 10 side. . The upper layer portion 22 is made of a first resin-based material, and the lower layer portion 23 is made of a second resin-based material. In the interface region between the upper layer portion 22 and the lower layer portion 23, as shown in FIG. 1, the two portions (upper layer portion 22, lower layer portion 23) may be clearly separated, and the first resin material and the second It may have a layer containing a resin-based material (the composition may change in the thickness direction of the appearance layer 20). The upper layer portion 22 may contain the first resin material as a main component and may contain the second resin material to some extent, and the lower layer portion 23 may mainly contain the second resin material and contain the first resin material to some extent It may be That is, in the first region R1, the ratio of the content of the first resin-based material to the content of the second resin-based material in the upper layer portion 22 (the side opposite to the side facing the substrate 10) is The ratio of the content of the first resin material to the content of the second resin material in the side facing the material 10) is higher.

  The appearance layer 20 of the optical panel 100 according to an embodiment of the present invention may further contain a filler component or may not contain a filler component. When the appearance layer 20 contains a filler component, a whitening phenomenon may occur in the appearance layer 20 because the adhesion between the filler component and the matrix component (resin component) changes with time. . Therefore, it may be preferable that the appearance layer 20 does not contain a filler component. When the appearance layer 20 contains a filler component, the type of the filler component is not particularly limited. The filler component may be composed of an inorganic material such as silica, zirconia, or titania, or may be composed of an organic material such as a melamine resin. The filler component may contain both an organic material and an inorganic material. Also, the particle size distribution of the filler component is optional. On the other hand, in the layer corresponding to the appearance layer described in Patent Document 1, as described above, it is necessary to precisely control the particle size distribution of the filler component.

  The appearance layer 20 included in the optical panel according to the embodiment of the present invention described above is configured of the first region R1 including the protruding point group 21 and the second region R2 including no protruding point group. It is not limited. For example, the entire surface of the appearance layer 20 may be provided with the projecting point group 21, or the first region R1 and the second region R2 may be provided with other regions having different optical characteristics.

  The manufacturing method of the optical panel provided with the appearance layer which concerns on one Embodiment of this invention is not limited. The optical panel according to the embodiment of the present invention can be efficiently manufactured by adopting the manufacturing method described below.

  FIG. 2 is a flowchart showing a method of manufacturing an optical panel according to an embodiment of the present invention. A method of manufacturing an optical panel according to an embodiment of the present invention includes first to third steps described below, and further includes fourth and fifth steps. By performing the first to third steps, it is possible to manufacture an optical panel provided with an appearance layer having projecting point groups on the entire surface. By performing the first to fifth steps, it is possible to manufacture the optical panel 100 provided with the appearance layer 20 configured of the first region R1 and the second region R2 as shown in FIG. In the following description, the first to fifth steps are performed as shown in FIG. 2 to manufacture the optical panel 100 shown in FIG. 1 as a specific example.

  FIG. 3 is a partial cross-sectional view schematically showing a method of manufacturing an optical panel (first step) according to an embodiment of the present invention. FIG. 4 is a partial cross-sectional view schematically showing a method of manufacturing an optical panel (second step) according to an embodiment of the present invention. FIG. 5 is a partial cross-sectional view schematically showing a method of manufacturing an optical panel (third step) according to an embodiment of the present invention. FIG. 6 is a partial cross-sectional view schematically showing a method of manufacturing an optical panel (after the third step) according to an embodiment of the present invention. FIG. 7 is a partial cross-sectional view schematically showing a method of manufacturing an optical panel (fourth step) according to an embodiment of the present invention. FIG. 8 is a partial cross-sectional view schematically showing a method of manufacturing an optical panel (fifth step) according to an embodiment of the present invention.

First, the ionizing radiation polymerizable first substance, the ionizing radiation polymerizable second substance different from the first substance, the first solvent which dissolves the first substance more easily than the second substance, and the first substance A liquid containing a second solvent which easily dissolves the second substance and a second solvent having a boiling point higher than that of one solvent is prepared. Specific examples of the composition of this liquid are as follows. The liquid does not have to be composed only of the liquid, and may contain a filler component.
First substance: Polyfunctional acrylate resin First solvent: Methyl isobutyl ketone Second substance: Polyether acrylate resin Second solvent: 1-propanol

  Each of the first substance, the first solvent, the second substance and the second solvent may be composed of one kind of substance or may be composed of a mixture of plural kinds of substances. By setting the SP value of the first substance and the SP value of the first solvent to be close to each other, the first substance can be easily dissolved in the first solvent. The second substance can be easily dissolved in the second solvent by setting the SP value of the second substance and the SP value of the second solvent to be close to each other. For example, even if each of the first substance and the second substance is an acrylic resin such as an acrylate resin or a methacrylate resin, changing the internal structure (as a specific example of the internal structure, an ether structure, a polyester structure, urethane SP value can be changed depending on the structure, phenol structure and the like. Even in the case of materials having similar structures, it may be possible to change the SP value by changing the molecular weight.

  If the SP value of each component is set as described above and the SP value of the first solvent and the SP value of the second solvent do not differ significantly, the first solvent and the second solvent are mixed. The liquid substance can be obtained by dissolving the first substance and the second substance in the mixed solvent. Alternatively, the first substance is dissolved in the first solvent to obtain the first solution, and the second substance is dissolved in the second solvent to obtain the second solution, and the first solution and the second solution are mixed. The liquid may be obtained by When the liquid contains a filler component, the timing of adding the filler component is arbitrary.

  In the first step, as shown in FIG. 3, a liquid is applied to one surface of the substrate 10 to form a coating film 30 on the substrate 10 (S101). In FIG. 3, in order to facilitate the description below, the state in which the first substance 41 and the second substance 42 are dissolved in the mixed solvent 31 composed of the first solvent and the second solvent is referred to as the first substance. 41 and the second substance 42 are represented by broken lines. In practice, the first substance 41 and the second substance 42 are dissolved in the mixed solvent 31 in the coating film 30 and are not in an individually distinguishable state.

  In the second step, the first substance 41 is deposited on the surface of the coating by volatilizing the first solvent 32 contained in the coating 30 to obtain a deposited coating 34 (S102, FIG. 4). The volatilization method of the first solvent 32 is not limited. As described above, since the first solvent 32 has a boiling point lower than that of the second solvent 33, when the coating film 30 on the substrate 10 is allowed to stand or is gently dried, the first mixed solvent 31 in the coating film 30 The solvent 32 volatilizes preferentially over the second solvent 33, and the content of the first solvent 32 in the coating film 30 decreases. Since the first substance 41 is mainly dissolved in the first solvent 32, when the amount of the first solvent 32 in the coating 30 decreases, the amount of the first substance 41 that can dissolve in the coating 30 decreases. As a result, as shown in FIG. 4, the first substance 40 becomes a precipitate 41 c and is positioned on the coating film 30, and the deposition coating 34 is formed on the substrate 10.

  In FIG. 4, all the first solvents 32 contained in the mixed solvent 31 of the coating film 30 are volatilized, and all the solvents in the deposited coating 34 are composed of the second solvent 33, but the invention is not limited thereto. . The first solvent 32 may remain to some extent in the solvent contained in the deposited coating 34. Moreover, in FIG. 4, although all of the 1st substance 41 contained in the coating film 30 are the precipitates 41c, it is not limited to this. A certain amount of the first substance 41 may be dissolved in the solvent of the deposited coating 34. In addition, as described later, the precipitate 41 c may positively contain a substance (third substance) other than the first substance 40.

  In the third step, at least a partial region of the deposited film 34 is irradiated with ionizing radiation to polymerize the first substance 41 and the second substance 42 located in the region irradiated with the ionizing radiation (S103, FIG. 5, 6). In FIG. 5, in order to manufacture the optical panel 100 provided with the appearance layer 20 having the first region R1 and the second region R2, the mask MSK having an opening in the region corresponding to the first region R1 is used. Ionizing radiation (in this case, ultraviolet light) UVL from a light source LRD is applied to a first coating film region R11 which is a partial region of the deposited coating 34 located at the opening of the mask MSK. As a result, as shown in FIG. 6, the first substance 41 (at least a part of which is a precipitate 41c) located in the first coating film region R11 and the second substance 42 are polymerized, and the whole thereof is obtained. A first region R1 is formed of the first resin material and the second resin material. The light source LRD and the mask MSK are disposed on the back side of the substrate 10 (the side opposite to the side on which the deposition coating 34 of the substrate 10 is provided), and ionizing radiation (in the case of FIG. The first substance 41 and the second substance 42 can also be polymerized by irradiating the deposited film 34 with the ionizing radiation UVL transmitted through the substrate 10 by irradiating the UV light with UV light.

  The first region R1 shown in FIG. 6 has a different composition distribution in the thickness direction of the deposited film 34. Specifically, a portion (lower layer portion) 23 made of the second resin-based material formed of the second substance 42 is located on the substrate 10 side. On the side distant from the base material 10 including the projecting point group 21, the projecting point group 21 made of the first resin material formed from the precipitate 41c of the first substance 41 is formed from the first substance 41 The portion (upper layer portion) 22 made of the first resin-based material is positioned.

  As described above, by performing the third step, the surface R1A including the projecting point group 21 of the appearance layer 20 is formed. In the third step, if the entire deposition coating 34 is irradiated with the ionizing radiation UVL without using the mask MSK, the appearance layer 20 having the projecting point group 21 on the entire surface can be formed from the deposition coating 34 .

  In the fourth step, the second coating film region R12 which is a region not irradiated with the ionizing radiation UVL in the deposited coating film 34 is heated to improve the surface smoothness of the second coating film region R12 (S104, FIG. 7) . The heating means is not limited. In FIG. 7, the second coating film region R <b> 12 is heated by the heating device HD capable of heating the entire appearance layer 20. Although the first region R1 is also heated by the heating device HD, the polymerization reaction is already completed in the first region R1. Therefore, the shape of the projecting point group 21 is largely changed by the heat from the heating device HD. Absent. By appropriately setting the melting point of the precipitate 41c of the first substance 41, the softening point of the projecting point group 21 formed of the first substance 41, and the heating temperature of the heating device HD, the precipitate 41c is appropriately melted. Can be diffused in the deposited coating 34 to enhance the surface smoothness of the second coated region R12 of the deposited coating 34, while the first region R1 provided by the projecting point group 21 is roughened. It is possible to maintain a steady state.

  From the viewpoint of promoting the melting and diffusion of the precipitates 41c in the second coating film region R12 into the deposited film 34, the liquid has compatibility with the first substance 41, and It is preferable to contain a third substance that promotes the dissolution in the second solvent 33. When the liquid contains the third substance, the precipitate 41c formed in the second step includes the first substance 41 and the third substance. The third substance is selected such that the melting point of the precipitate 41c is lower than the melting point of the precipitate of the first substance. From this viewpoint, the melting point of the third substance is preferably low. Specifically, the melting point of the third substance is preferably not more than twice the melting point of the first substance 41, and more preferably not more than 1.5 times the melting point of the first substance 41 .

  By promoting the diffusion of the precipitate 41c into the deposited coating 34, the surface smoothness of the deposited coating 34 located in the second coating region R12 is more stably realized. Therefore, by containing the third substance in the liquid, it is possible to improve the surface smoothness of the second region R2 of the appearance layer 20 formed of the deposited coating 34 located in the second coating region R12. . In addition, since the precipitates 41c are more stably dissolved in the deposited film 34 by containing the third substance in the liquid, the uniformity of the deposited film 34 located in the second film region R12 is enhanced. For this reason, in the second region R2 of the appearance layer 20 formed of the deposited coating 34 located in the second coating region R12, appearance defects due to nonuniformity of the appearance layer 20 such as fogging and glare do not easily occur. The haze can be quantitatively evaluated by haze (JIS K7136: 2000). The third substance thus contained in the liquid also remains in the appearance layer 20. Therefore, when the appearance layer 20 contains the third substance, the second region R2 of the appearance layer 20 tends to have high surface smoothness, and is caused by the non-uniformity of the appearance layer 20 such as fogging or glare. Poor appearance is unlikely to occur.

  The third substance may achieve compatibility with the first substance 41 by having a functional group common to the functional group of the first substance 41. For example, when the first substance 41 has a hydroxyl group, compatibility with the first substance 41 can be realized by the third substance also having a hydroxyl group. Further, from the viewpoint of enhancing the handleability and the uniformity of the coating film 30 and the appearance layer 20, it is preferable that the third substance can be dissolved in the mixed solvent 31 or the first solvent 32. The amount of addition based on the sum of the mass of the first substance 41 and the mass of the second substance 42 of the third substance is not limited. As long as the uniformity of the coating film 30 and the appearance layer 20 can be ensured, the higher the addition amount of the third substance, the more preferable because the melting point of the precipitate 41c is lowered efficiently.

  Examples of the above-mentioned third substance having a hydroxyl group include phenol compounds (compounds having a site in which a hydroxyl group is bonded to an aromatic ring), and a phenol compound having a melting point of 100 ° C. or less is a preferred example, hindered phenol More preferable examples of the compound of the present invention and hindered phenol compounds having a melting point of 100 ° C. or less can be mentioned as particularly preferable examples. As a specific example of such a hindered phenol compound having a melting point of 100 ° C. or less, octadecyl 3- (3,5-di-tert-butyl-4-hydroxyphenyl) propionate used in the examples described later And butyl hydroxyanisole, 2,6-di-tert-butyl-4-methylphenol, and 4-tert-butylphenol.

  In the fifth step, the second coating film region R12 in a state in which the surface smoothness is enhanced by the execution of the fourth step is irradiated with ionizing radiation UVL from the light source LRD to be positioned in the second coating film region R12 The first substance 41 and the second substance 42 are polymerized to form a second region R2 made of the first resin material and the second resin material (S105, FIG. 8). By performing the first to fifth steps, the optical panel 100 including the appearance layer 20 having the first region R1 and the second region R2 is manufactured.

  The conditions of the irradiation of ionizing radiation UVL from the light source LRD performed in the second and fifth steps include the size of the irradiation area, the types of the first substance 41 and the second substance 42, the thickness of the deposited film 34, etc. It should be set appropriately in consideration.

  According to such a manufacturing method, since the protruding point group 21 directly performing the reflection preventing function is made of the resin material, the appearance layer 20 has the reflection preventing function whether the liquid contains the filler component or not. Whether or not to have can be set independently. Therefore, the liquid may further contain a filler component or may not contain a filler component.

  The liquid may contain a polymerization initiator. In this case, the polymerization of the first substance 41 and the second substance 42 can be performed by irradiation of an electromagnetic wave such as ultraviolet light. Specific examples of the polymerization initiator are as described above.

  In the above-described manufacturing method, heating is performed so that the precipitate 41c of the first substance 41 deposited in the deposition coating 34 is melted in the fourth step, but is not limited thereto. For example, when the deposited film 34 is heated, the solubility of the precipitate 41c of the first substance 41 in the second solvent 33 is increased, and the first substance 41 is dissolved in the second solvent 33, whereby the precipitate is deposited. 41c may disappear and the surface smoothness of the deposited coating 34 may be enhanced.

  An apparatus according to an embodiment of the present invention includes the optical panel 100 according to an embodiment of the present invention described above. Specific examples of such devices include portable information terminals such as smartphones, cell phones, notebook computers, etc .; image display devices such as televisions and car navigations; instrument panels (instrument panels) of moving objects such as automobiles and airplanes, console panels, etc. It can be mentioned. The device according to an embodiment of the present invention is excellent in the visibility of the display image because it includes the optical panel 100 having the reflection preventing function.

  The appearance layer 20 of the optical panel 100 according to the embodiment of the present invention described above can be used as a transfer layer having a transfer source surface for forming a transfer surface on a transfer target. By pressing the transfer source surface of the transfer body provided with such a transfer layer against the transfer target, it is possible to form the transfer surface, which is the reverse surface of the transfer source surface, on the transfer target. Specifically, the transfer layer includes a first resin material containing a polymer of an ionizing radiation polymerizable first substance, and a second resin containing an ionizing radiation polymerizable second substance polymer different from the first substance. The transfer source surface includes a resin-based material, and includes a projection point group which is made of the first resin-based material and protrudes in the thickness direction of the transfer layer to scatter external light, and a region including the transfer source surface in the transfer layer is transferred The composition is different in the thickness direction of the layer, and the ratio of the content of the first resin material to the content of the second resin material on the transfer source surface side is the first resin material on the side opposite to the transfer source surface The ratio of the content of the material to the content of the second resin-based material is higher. The above-mentioned transfer body may contain a third substance having compatibility with the first substance. The other features of the transfer layer are the same as those of the appearance layer 20, and thus the description thereof is omitted.

  The transfer body described above can be manufactured by the same manufacturing method as the method of manufacturing the optical panel 100. Such a manufacturing method comprises: an ionizing radiation polymerizable first substance; an ionizing radiation polymerizable second substance different from the first substance; a first solvent which dissolves the first substance more easily than the second substance; A liquid containing a second solvent that dissolves the second substance more easily than the substance and has a boiling point higher than the first solvent is applied to one surface of the substrate to form a coating film on the substrate A second step of depositing a first substance on the surface of the coating by volatilizing a first solvent contained in the coating to obtain a deposited coating; and at least one of the deposited coatings A third step of polymerizing the first substance and the second substance located in the region irradiated with ionizing radiation by irradiating the region of the part with ionizing radiation; and A face is formed. In this manufacturing method, unlike the substrate of the optical panel 100, the substrate does not have to be translucent. The surface of the substrate on which the liquid material is applied does not have to be flat, but it is preferable from the viewpoint of improving the uniformity of the thickness of the coating film. The substrate may not be a component of the transfer body. That is, when a transfer layer having a transfer source surface is formed after the third step, the transfer layer is peeled off from the substrate, and the transfer layer alone or a surface opposite to the surface on which the transfer source surface is located is separated. The transfer member may be disposed to face the member of (1) to obtain a transfer body including the member and the transfer layer.

  In the method of manufacturing a transfer body as described above, the transfer layer comprises a first region having a surface having a projecting point group and a second region having a surface not having a projecting point group, and in the third step, the deposited film is deposited. The first substance and the second substance located in the first coating area are polymerized to form the first area by irradiating the first coating area, which is a partial area of the first coating area, with ionizing radiation. A fourth step of heating the second coating film area which is not irradiated with ionizing radiation in the deposited coating film to increase the surface smoothness of the second coating film area; The method may further comprise a fifth step of polymerizing the first substance and the second substance located in the second coating film area by irradiating the coating film area with ionizing radiation to form a second area. According to this manufacturing method, it is possible to provide a surface with excellent smoothness on the surface on which the transfer source surface of the transfer layer is located.

  In the method of producing a transfer body in which the transfer layer has the first region and the second region, in the fourth step, heating may be performed so that the precipitate containing the first substance in the deposited coating film is melted. In this case, the liquid contains a third substance having compatibility with the first substance, the precipitate containing the first substance formed in the second step contains the third substance, and the precipitate contains the first substance Preferably, the melting point is lower than that of the precipitate made of the first substance. By adopting such a manufacturing method, improving the surface smoothness of the second region is more stably realized. The other features of the method of manufacturing the transfer body are the same as the method of manufacturing the optical panel 100, and thus the description thereof is omitted.

  Although this embodiment and its application example were described above, the present invention is not limited to these examples. For example, those skilled in the art may appropriately add, delete, or change design elements of the above-described embodiments or their application examples, or may appropriately combine the features of the embodiments. As long as it comprises the gist, it is included within the scope of the present invention.

(Examples 1 to 5 and Comparative Examples 1 to 3)
Hereinafter, the present invention will be more specifically described by way of examples and the like, but the scope of the present invention is not limited to these examples and the like.

  The following materials were prepared as a first substance, a first solvent, a second substance, and a second solvent. The first substance and the second substance are acrylic resins, and by changing the structure (ether structure, polyester structure, urethane structure, phenol structure, etc.) contained inside, the SP values as substances are made to differ from each other. It is set. The melting point of the first substance was 48 ° C.

First substance: Multifunctional acrylate resin (pentaerythritol triacrylate)
First solvent: methyl isobutyl ketone Second substance: polyether-based acrylate resin (a urethane prepolymer having a phenyl group and having an SP value of 1.2 times that of the polyfunctional acrylate resin)
Second solvent: 1-propanol (having an SP value of 1.37 times that of methyl isobutyl ketone)

  15 g of the first substance was dissolved in 50 mL of the first solvent to obtain a first solution, and 15 g of the second substance was dissolved in 50 mL of the second solvent to obtain a second solution. 50 mL of the first solution and 50 mL of the second solution were mixed, and a polymerization initiator was further added (addition amount: 2% by mass with respect to solid content) to obtain a mixed solution. The polymerization initiator used was one of the following two types (see Table 1).

Polymerization initiator 1: Ketone-based polymerization initiator ("Irgacure 184" manufactured by BASF)
Polymerization initiator 2: Phosphine oxide polymerization initiator ("Irgacure 819" manufactured by BASF Corp.)

  The liquid obtained from the mixed solution was applied onto a substrate made of polycarbonate to obtain a coating (first step). The thickness of the coating immediately after application was about 10 μm.

  When the coating on the substrate is left to stand in the air (at room temperature 25 ° C.), the first solvent volatilizes almost by leaving for about 1 minute, and the first substance in the coating is deposited, and the substrate is deposited on the substrate A deposited coating was obtained (second step).

Prepare a mask having an opening in the area corresponding to the view area, place it on the deposited coating, and irradiate the first coating area exposed by the opening with ultraviolet light from the light source, and from the first coating area The first region was formed (third step). The type of light source used, the illuminance (unit: mW / cm ² ) and the integrated dose (unit: mJ / cm ² ) were as shown in Table 1.

  Remove the mask and heat (80 ° C., 10 minutes) the deposited film with partially polymerized area (first area) using an infrared lamp capable of irradiating the entire area, in the unpolymerized area The deposit of the first substance present in the second coating film area was melted to improve the surface smoothness of the second coating film area (fourth step).

Subsequently, the entire region was irradiated with ultraviolet light from a light source to form a second region from the second coating film region, and an appearance layer was obtained on the substrate (fifth step). The type of light source used, the illuminance (unit: mW / cm ² ) and the integrated dose (unit: mJ / cm ² ) were as shown in Table 1.

  The roughness (maximum height Rz of the surface roughness defined in JIS B 0601: 2001) of the first region and the second region of the obtained appearance layer was measured. The results are shown in Table 2. Further, based on the difference between the roughness of the first region and the roughness of the second region, it was evaluated whether or not it was possible to form an appearance layer partially having an antireflection function. The evaluation results are shown in Table 2. Specifically, when the maximum height Rz of the surface roughness in the first region is larger than the maximum height Rz of the surface roughness in the roughness of the second region by 0.5 μm or more, the anti-reflection function It is judged that it was possible to make an appearance layer having a part of it ("A" in Table 2), and make an appearance layer having a partially antireflective function if the above difference is less than 0.5 μm. It could not be done ("B" in Table 2).

  As shown in Table 2, by appropriately setting the integrated dose of ionizing radiation to the first coating film area, the protruding point group is appropriately formed, and the protruding point group is maintained even by the subsequent heating That was confirmed. In addition, it is also confirmed that the second region formed from the second coating region can be made smooth by dissolving appropriately the precipitate of the first substance formed in the second coating region by heating. It was done. That is, it was confirmed that an appearance layer having an area having an antireflection function and an area having high reflectivity can be manufactured by carrying out the manufacturing method according to an embodiment of the present invention.

(Examples 6 to 13)
25 g of the first substance used in Example 1 was dissolved in 50 mL of the first solvent to obtain a first solution, and 25 g of the second substance was dissolved in 50 mL of the second solvent to obtain a second solution. A mixture of 50 mL of the first solution and 50 mL of the second solution is further added with 2% by mass of a ketone-based polymerization initiator ("Irgacure 184" manufactured by BASF Corp.) as a polymerization initiator based on the solid content. Obtained.
The third substance was added to this mixed solution in an amount (unit: mass%) shown in Table 3 based on the total of the mass of the first substance and the mass of the second substance. The substance name and the melting point of the third substance according to each example are as shown in Table 3. The third substance is compatible with the first substance because all of the third substances have a hydroxyl group and are common to the first substance in that they have a hydroxyl group. Therefore, the precipitate formed by using the liquid to which the third substance is added contains the first substance and the third substance. An appearance layer having a first region and a second region was formed on a substrate in the same manner as in Example 1 except that the thickness of the coating film immediately after application was 14 μm using a # 12 bar coater.

The following evaluation was performed about the 1st area | region and 2nd area | region of the obtained appearance layer.
(1) The maximum height Rz of surface roughness specified in JIS B0601: 2001 (unit: μm)
(2) Total light transmittance (unit:%) defined in JIS K7375: 2008
(3) Haze (haze, unit:%) defined in JIS K7136: 2000
The second area was further evaluated for the degree of glare.
(4) Glare The appearance layer irradiated with a fluorescent lamp for general appearance inspection was visually observed and evaluated on the following three levels.
(A) no glaring (B) mild glaring (C) clear glaring Table 4 shows the evaluation results.

  As shown in Table 4, when the third substance is added (Examples 6 to 12), the maximum height of the second region is higher than when the third substance is not added (Example 13). Rz decreased and surface smoothness improved. In addition, it was confirmed that the addition of the third substance tends to reduce the haze and the tendency for the glare to be difficult to occur. This tendency was remarkable as the melting point of the added third substance was low and the amount of the third substance added was large. In addition, the change of the transmittance | permeability by having added the 3rd substance was hardly recognized about any of 1st area | region and 2nd area | region. In the first region, the maximum height Rz and the haze tended to be reduced by the addition of the third substance, but the degree of the change relative to the case where no third substance is added (Example 13) Was less than 10%.

100 Optical Panel 10 Base Material 20 Appearance Layer R1 First Region R2 Second Region R1A Surface of First Region R1 (First Region Surface)
R2A Surface of second region R2 (second region surface)
21 projecting point group 22 upper layer portion 23 lower layer portion 24 layer made of mixed resin material S101 first step S102 second step S103 third step S104 fourth step S105 fifth step 30 coating 31 mixed solvent 41 first substance 42 first substance 42 2 substances 32 1st solvent 33 2nd solvent 34 precipitation coating 41c precipitation LRD light source UVL ionizing radiation (ultraviolet light)
MSK mask HD heating device R11 first coating area R12 second coating area

Claims (29)

An optical panel comprising: a light transmitting base material; and an appearance layer located on the base material,
The appearance layer includes a first area in which the reflectance of incident light from the appearance layer side of the optical panel is relatively low, and a second area in which the reflectance is relatively high.
The appearance layer includes a first resin-based material and a second resin-based material,
An optical panel comprising a projecting point group which is made of the first resin material and which protrudes in the thickness direction of the appearance layer to scatter external light.   The composition of the first region is different in the thickness direction of the appearance layer, and the content of the first resin material on the side opposite to the side facing the substrate relative to the content of the second resin material The optical panel according to claim 1, wherein a ratio is higher than a ratio of the content of the first resin material on the side facing the base material to the content of the second resin material.   The optical panel according to claim 1, wherein the projection point group projects more than the surface of the second area.   The optical panel according to any one of claims 1 to 3, wherein the first region and the second region have the same overall composition and a different composition distribution in the thickness direction of the appearance layer. An optical panel comprising: a light transmitting base material; and an appearance layer located on the base material,
The appearance layer includes a first resin-based material and a second resin-based material,
An optical panel comprising, in at least a partial region, a surface of the appearance layer, and a projecting point group which is made of the first resin-based material and protrudes in the thickness direction of the appearance layer to scatter external light.   In the region including the projecting point group, the composition is different in the thickness direction of the appearance layer, and the content of the first resin-based material on the side opposite to the side facing the base is the second resin-based material The optical panel according to claim 5, wherein the ratio to the content is higher than the ratio of the content of the first resin material to the content of the second resin material on the side facing the substrate.   The optical panel according to any one of claims 1 to 6, wherein the appearance layer further comprises a filler component.   The optical panel according to any one of claims 1 to 6, wherein the appearance layer contains no filler component.   The first resin material includes a polymer of an ionizing radiation polymerizable first substance, and the second resin material includes a polymer of an ionizing radiation polymerizable second substance different from the first substance. The optical panel according to any one of claims 1 to 8.   The optical panel according to claim 9, wherein the appearance layer contains a polymerization initiator.   The optical panel according to claim 9, wherein the appearance layer includes a third substance having compatibility with the first substance.   The optical panel according to claim 11, wherein the third substance is a phenolic compound. What is claimed is: 1. A method of manufacturing an optical panel, comprising: a light transmitting base material; and an appearance layer having a surface on the base material and having a projecting point group that scatters external light,
An ionizing radiation polymerizable first substance, an ionizing radiation polymerizable second substance different from the first substance, a first solvent capable of dissolving the first substance more easily than the second substance, and the first substance A liquid containing a second solvent that dissolves the second substance more easily and has a boiling point higher than that of the first solvent is applied to one surface of the substrate to form a coating on the substrate First step to form;
A second step of positioning a deposit containing the first substance on the surface of the coating by volatilizing the first solvent contained in the coating; and obtaining a deposited coating; and The method further comprises a third step of polymerizing the first substance and the second substance located in the area irradiated with the ionizing radiation by irradiating at least a part of the area with the ionizing radiation;
According to the third aspect of the present invention, there is provided a method of manufacturing an optical panel, wherein a surface including the group of projecting points of the appearance layer is formed.   The optical panel according to claim 13, wherein, in the third step, the appearance layer provided with the projecting point group on the entire surface is formed from the deposited coating by irradiating the whole of the deposited coating with the ionizing radiation. Manufacturing method. The appearance layer includes a first area having a surface provided with the protruding point group and a second area having a surface not provided with the protruding point group,
In the third step, the first substance and the second substance located in the first coating film region are irradiated by irradiating the ionizing radiation to the first coating film region which is a partial region of the deposited coating film. Are polymerized to form the first region,
Following the third step,
A fourth step of heating the second coating film region not irradiated with the ionizing radiation in the deposited coating film to increase the surface smoothness of the second coating film region; and the second step of improving the surface smoothness The method further comprises a fifth step of polymerizing the first substance and the second substance located in the second coating region by irradiating the coating region with ionizing radiation to form a second region. The manufacturing method of the optical panel of Claim 13.   The method for manufacturing an optical panel according to any one of claims 13 to 15, wherein the liquid further contains a filler component.   The method for manufacturing an optical panel according to any one of claims 13 to 15, wherein the liquid does not contain a filler component.   The method for producing an optical panel according to any one of claims 13 to 17, wherein the liquid contains a polymerization initiator, and the polymerization of the first substance and the second substance is performed by irradiation of an electromagnetic wave.   The manufacturing method of the optical panel as described in any one of Claims 15-18 which heats so that the precipitate which contains the said 1st substance in the said precipitation coating film may fuse | melt in said 4th step.   The liquid body contains a third substance having compatibility with the first substance, and the deposit containing the first substance formed in the second step contains the third substance and contains the first substance The method for manufacturing an optical panel according to claim 19, wherein the precipitate has a melting point lower than that of the precipitate made of the first substance.   The manufacturing method of the optical panel whose said 3rd substance is a phenol type compound.   An apparatus comprising the optical panel according to any one of claims 1 to 12. A transfer body comprising a transfer layer having a transfer source surface,
The transfer layer is a first resin-based material containing a polymer of an ionizing radiation-polymerizable first substance, and a second resin-based material containing a polymer of an ionizing radiation-polymerizable second substance different from the first substance. Including
The transfer source surface includes a projecting point group which is made of the first resin-based material and protrudes in the thickness direction of the transfer layer to scatter external light.
The region including the transfer source surface in the transfer layer is different in composition in the thickness direction of the transfer layer, and the content of the first resin material on the transfer source surface side is the content of the second resin material A transfer body characterized in that the ratio to the amount is higher than the ratio of the content of the first resin material on the side opposite to the transfer source surface side to the content of the second resin material.   24. The transfer body according to claim 23, comprising a third substance having compatibility with the first substance.   25. The transfer body according to claim 23 or 24, wherein the third substance is a phenolic compound. What is claimed is: 1. A method of manufacturing a transfer body comprising a transfer layer having a transfer source surface including a projecting point group that scatters external light, comprising:
An ionizing radiation polymerizable first substance, an ionizing radiation polymerizable second substance different from the first substance, a first solvent capable of dissolving the first substance more easily than the second substance, and the first substance A liquid containing a second solvent which dissolves the second substance more easily and has a boiling point higher than the first solvent is applied to one surface of the substrate to form a coating film on the substrate The first step to do;
A second step of positioning a deposit containing the first substance on the surface of the coating by volatilizing the first solvent contained in the coating; and obtaining a deposited coating; and The method further comprises a third step of polymerizing the first substance and the second substance located in the area irradiated with the ionizing radiation by irradiating at least a part of the area with the ionizing radiation;
According to the third aspect of the invention, there is provided a method of manufacturing a transfer body, wherein the transfer source surface including the projecting point group is formed by the third step. The transfer layer includes a first region having a surface provided with the protruding point group and a second region having a surface not provided with the protruding point group,
In the third step, the first substance and the second substance located in the first coating film region are irradiated by irradiating the ionizing radiation to the first coating film region which is a partial region of the deposited coating film. Are polymerized to form the first region,
Following the third step,
A fourth step of heating the second coating film region not irradiated with the ionizing radiation in the deposited coating film to increase the surface smoothness of the second coating film region; and the second step of improving the surface smoothness The method further comprises a fifth step of polymerizing the first substance and the second substance located in the second coating region by irradiating the coating region with ionizing radiation to form a second region. 26. The method for producing a transfer body according to 26. In the fourth step, heating is performed so as to melt the precipitate containing the first substance in the deposition coating,
The liquid body contains a third substance having compatibility with the first substance, and the deposit containing the first substance formed in the second step contains the third substance and contains the first substance The method for producing a transfer body according to claim 27, wherein the deposit has a melting point lower than that of the deposit made of the first substance.   29. The method for producing a transfer body according to claim 27, wherein the third substance is a phenolic compound.