Printed matter, method of manufacturing printed matter, and display device

Abstract

To provide printed matter which can be suppresses in deterioration of visibility due to flawing of a surface of a base material of the printed matter, a method of manufacturing the printed matter, and a display device.SOLUTION: There is provided a printed matter 1 which transmits light L from a light source 21. The printed matter 1 comprises a base material 2 and an illustration layer 5 formed on the base material 2. The illustration layer 5 has a transmission part 5b that transmits the light from the light source 21 along a thickness direction D1 of the illustration layer 5. The base material 2 has a surface part 2b which is exposed at the transmission part 5b, and is coated with transparent resin 7.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a printed matter, a method for manufacturing a printed matter, and a display device. [Background technology]

[0002] Patent Document 1 describes a display device with a decorative sheet, which includes a display device having a display surface and a decorative sheet provided opposite the display surface. The decorative sheet has a base portion, a picture portion and a shielding portion provided on the base portion, and a transmissive portion that transmits image light from the display surface of the display device. The transmissive portion is a portion where the picture portion and the shielding portion are not formed. When an image is displayed on the display surface of the display device, the image light passes through the transmissive portion and is observed by an external observer. When an image is not displayed on the display surface of the display device, the picture in the picture portion is observed.

[0003] Patent Document 2 describes a display device with a panel. The display device with a panel has a decorative sheet, a panel member, and a display device. The decorative sheet has a transparent substrate with a plurality of convex portions on its surface, and a picture portion and a shielding portion provided in an area other than the convex portions on the surface of the substrate. The convex portions of the substrate serve as transmissive portions that transmit light. When an image is displayed on the display surface of the display unit, the image light passes through the openings in the panel member and the transmissive portions of the decorative sheet and is observed by an external observer. When no image is displayed on the display surface of the display device, the picture portion of the decorative sheet is observed. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] International Publication No. 2020 / 040195 [Patent Document 2] Patent No. 7279509 Summary of the Invention [Problem to be solved by the invention]

[0005] Incidentally, as a method for forming the aforementioned transparent portion, micro-hole drilling by laser processing is sometimes adopted, and the transparent portion is formed by cutting the pattern portion with laser light. However, with laser processing, it may be difficult to form the transparent portion by cutting only the pattern portion, and the laser light may scratch the surface of the base material. If the surface of the base material is scratched, there is a concern that the visibility of the image may be reduced due to light refraction caused by the scratch.

[0006] An object of the present disclosure is to provide a printed matter, a method for manufacturing a printed matter, and a display device that can suppress a decrease in visibility due to scratches on the surface of a substrate. [Means for solving the problem]

[0007] (1) A printed matter according to the present disclosure is a printed matter that transmits light from a light source. The printed matter includes a substrate and a pattern layer formed on the substrate. The pattern layer has a transparent portion that transmits light from the light source along the thickness direction of the pattern layer. A transparent resin is applied to the surface portion of the substrate that is exposed in the transparent portion.

[0008] This printed matter comprises a substrate and a picture layer, and the picture layer has a transparent portion that transmits light from a light source along the thickness direction of the picture layer. The surface portion of the substrate is exposed in the transparent portion, and a transparent resin is applied to this surface portion of the substrate. Therefore, even if the surface portion of the substrate is scratched by the laser light when the picture layer is irradiated with laser light and the transparent portion is formed in the picture layer, the refraction of light due to the scratch can be suppressed by applying the transparent resin to the surface portion of the substrate. Therefore, a decrease in the visibility of the image can be suppressed. Furthermore, the formation of the scratches has the effect of improving adhesion to the transparent resin.

[0009] (2) In the above (1), the printed matter may have a concealing layer located between the light source and the picture layer. In this case, by providing the concealing layer between the light source and the picture layer, it is possible to suppress the color of the light source itself, i.e., the black color of the display surface if the light source is a display surface, from becoming apparent when the light source is not emitting light. Therefore, by suppressing colors such as black, the picture of the picture layer can be displayed more clearly.

[0010] (3) In the above (1) or (2), the height of the transparent resin relative to the substrate may be equal to or greater than the height of the transmitting portion relative to the substrate. In this case, the transparent resin becomes smooth, allowing for bonding without problems such as air bubbles.

[0011] (4) In the above (1) or (2), the height of the transparent resin relative to the substrate may be equal to or less than the height of the transmissive portion relative to the substrate. In this case, the amount of transparent resin to be applied can be reduced, thereby reducing the cost of the transparent resin material.

[0012] (5) In any of the above (1) to (4), scratches may be formed on the surface of the substrate.

[0013] (6) A method for producing a printed matter according to the present disclosure is a method for producing a printed matter that transmits light from a light source and has a substrate and a picture layer formed on the substrate, the method comprising the steps of: irradiating the picture layer with laser light to form a transmissive portion in the picture layer that transmits light from the light source along the thickness direction of the picture layer; and applying a transparent resin to the surface portion of the substrate that is exposed in the transmissive portion.

[0014] In this method for manufacturing a printed matter, a transparent portion that transmits light from a light source is formed in the picture layer of the printed matter by irradiating it with laser light. The surface portion of the substrate in the transparent portion is exposed by the irradiation with laser light, and a transparent resin is applied to this surface portion of the substrate. Therefore, even if the surface portion of the substrate is scratched by the irradiation with laser light, the refraction of light due to the scratch can be suppressed by applying the transparent resin to the surface portion of the substrate. As a result, a decrease in the visibility of the image can be suppressed.

[0015] (7) A display device according to the present disclosure includes the above-described printed matter and a light source. Because this display device includes the above-described printed matter, it achieves the same effects as those described above. [Effects of the Invention]

[0016] According to the present disclosure, it is possible to suppress a decrease in visibility due to scratches on the surface of the substrate. [Brief explanation of the drawings]

[0017] [Figure 1] FIG. 1 is a diagram schematically showing the layer structure of the display device and printed matter according to the first embodiment. [Figure 2] FIG. 2 is a plan view schematically showing a printed matter according to the first embodiment. [Figure 3] FIG. 3 is an enlarged view of a cross section of a transmission section according to the first embodiment. [Figure 4] FIG. 4 is a diagram schematically showing the layer structure of the display device and the printed matter according to the second embodiment. [Figure 5] FIG. 5 is a diagram schematically showing the layer structure of the display device and the printed matter according to the third embodiment. [Figure 6] FIG. 6 is a diagram schematically showing the layer structure of the display device and the printed matter according to the fourth embodiment. [Figure 7] FIG. 7 is a diagram schematically showing the layer structure of the display device and the printed matter according to the fifth embodiment. [Figure 8] FIG. 8 is a graph showing the results of an experiment using printed matter according to an example and printed matter according to a comparative example. [Figure 9] Fig. 9(a) is a plan view showing a printed matter according to a modified example, and Fig. 9(b) is a plan view showing a printed matter according to a further modified example. DETAILED DESCRIPTION OF THE INVENTION

[0018] Hereinafter, embodiments of a printed matter, a method for manufacturing a printed matter, and a display device according to the present disclosure will be described with reference to the drawings. In the description of the drawings, identical or corresponding elements are designated by the same reference numerals, and duplicate explanations will be omitted as appropriate. The drawings may be partially simplified or exaggerated for ease of understanding, and the dimensional ratios and the like are not limited to those shown in the drawings.

[0019] (First embodiment) FIG. 1 is a cross-sectional view schematically showing a display device 20 according to a first embodiment. As shown in FIG. 1, the display device 20 includes a printed matter 1 and a light source 21. The display device 20 is, for example, a panel-equipped display device that includes a decorative sheet. The printed matter 1 is a decorative sheet for expressing a pattern. The printed matter 1 includes, for example, a base material 2, a concealing layer 3, and a pattern layer 5.

[0020] The printed matter 1 is placed in front of the light source 21 (on the near side, between the viewer and the light source 21). The printed matter 1 transmits light L from the light source 21. The printed matter 1, for example, has all-light transmittance. When the power of the light source 21 is ON (the light source 21 is emitting light L), the viewer can see the light from the light source 21 that has passed through the printed matter 1. When the power of the light source 21 is OFF (the light source 21 is not emitting light), the viewer can see the image represented by the printed matter 1.

[0021] The light source 21 is, for example, a display device. In this case, the light source 21 is a display configured using a dot matrix system, a liquid crystal system, a plasma system, or an organic electroluminescence (EL) system. For example, the total light transmittance of the printed matter 1 is 30% or more and 70% or less. The visible light transmittance of the printed matter 1 may be 10% or more and 70% or less. When the visible light transmittance of the printed matter 1 is 10% or more, it is possible to make it easier for light from the light source 21 to pass through the printed matter 1. The transmittance is a value measured using, for example, a spectrophotometer (for example, a UV-2100 spectrophotometer manufactured by Shimadzu Corporation).

[0022] The substrate 2 is a substrate that is transparent to visible light. The substrate 2 is made of, for example, a transparent resin. The substrate 2 is transparent or translucent. Examples of the transparent resin include polystyrene, AS, ABS, polyvinyl chloride, acrylic, polyethylene, polyethylene terephthalate, polypropylene, polycarbonate, polyacrylonitrile, and nylon. The substrate 2 may be a transferable substrate. The substrate 2 may be a glass substrate. The thickness of the substrate 2 is, for example, 25 μm or more and 250 μm or less. When the substrate 2 is a glass substrate, the thickness of the substrate 2 is, for example, 1 mm or more and 10 mm or less.

[0023] A concealing layer 3 is provided on the substrate 2. The concealing layer 3 is a layer that conceals the light source 21 when the power of the light source 21 is turned off and determines the hue of the pattern. The concealing layer 3 contains at least one of an inorganic pigment and an organic pigment. The thickness of the concealing layer 3 is, for example, 3 μm or more and 10 μm or less.

[0024] The concealing layer 3 is, for example, a layer used in a typical transfer method. The concealing layer 3 has concealing properties. That is, the concealing layer 3 has a concealing function. The concealing layer 3 contains at least one of an acrylic material, a chlorinated rubber material, a vinyl chloride material, a vinyl acetate material, a vinyl chloride-vinyl acetate copolymer material, a urethane material, and a polyester material. The concealing layer 3 may be composed of, for example, at least one of a solid ink layer and a vapor deposition layer. The concealing layer 3 may have a structure in which a vapor deposition layer is sandwiched between a pair of solid ink layers.

[0025] The pattern layer 5 is formed on the substrate 2. In this embodiment, the pattern layer 5 is located on the opposite side of the substrate 2 from the concealing layer 3. The pattern layer 5 is a layer that expresses the pattern of the printed matter 1. In other words, the pattern layer 5 is a layer on which the pattern expressed by the printed matter 1 is formed. The pattern of the pattern layer 5 is a pattern that appears on the surface of the printed matter 1 when the power of the light source 21 is turned off, and is, for example, a wood grain pattern or an abstract pattern.

[0026] The design layer 5 is provided on the hiding layer 3 by, for example, screen printing, inkjet printing, gravure printing, or offset printing. The design layer 5 may contain, for example, an interference pigment. The thickness of the design layer 5 is, for example, 1 μm or more and 10 μm or less. The design layer 5 may contain a curing agent. In this case, the heat resistance and adhesion of the design layer 5 can be improved.

[0027] Fig. 2 is a plan view of the printed matter 1 as viewed along the thickness direction D1 of the printed matter 1. As shown in Figs. 1 and 2, the picture layer 5 has a transmissive portion 5b that transmits light from the light source 21 along the thickness direction D1 of the picture layer 5. The printed matter 1 has a transparent resin 7, which is applied to the transmissive portion 5b.

[0028] For example, the transparent resin 7 is applied to the picture layer 5 so as to fill the transmissive portions 5b and cover the surface 5c of the picture layer 5 opposite the substrate 2. To avoid complexity, FIG. 2 does not show any resin other than the transparent resin 7 that fills the transmissive portions 5b (the resin that covers the surface 5c). The transparent resin 7 is, for example, a transparent resin that is viscous when applied and hardens over time.

[0029] For example, the picture layer 5 has a plurality of transmissive portions 5b aligned along the in-plane direction of the picture layer 5. The in-plane direction of the picture layer 5 includes, for example, a first direction D2 and a second direction D3 intersecting (for example, perpendicular to) both the thickness direction D1 and the first direction D2. The plurality of transmissive portions 5b are aligned, for example, at equal intervals along the in-plane direction of the picture layer 5.

[0030] The arrangement interval W (pitch) of the transmissive portions 5b arranged along the in-plane direction of the picture layer 5 may be determined, for example, according to the size of the RGB elements of the light source 21. The arrangement interval W is, for example, 40 μm or more and 140 μm or less. The arrangement interval W may be 50 μm or more, 60 μm or more, or 70 μm or more, or may be 120 μm or less, 100 μm or less, or 80 μm or less. In this way, the value of the arrangement interval W can be changed as appropriate.

[0031] In the pattern layer 5, for example, a plurality of transmissive portions 5b are formed in a mesh pattern. For example, the plurality of transmissive portions 5b are arranged in a grid pattern. For example, the transmissive portions 5b are circular. However, the shape of the transmissive portions 5b may be a shape other than a circle, such as an oval shape including an ellipse, a polygonal shape including a triangular shape, a rectangular shape, or a hexagonal shape, or a fan shape. In this way, the shape of the transmissive portions 5b is not particularly limited.

[0032] When the transmissive portion 5b is circular, the diameter L of the transmissive portion 5b is determined, for example, according to the size of the RGB elements of the light source 21. The diameter L is, for example, 50 μm or more and 200 μm or less. In this case, the size of the transmissive portion 5b can be set to a size that allows the RGB elements of the light source 21 to be accommodated. The diameter L may be 60 μm or more, 80 μm or more, or 100 μm or more, or may be 180 μm or less, 150 μm or less, or 120 μm or less. In this way, the value of the diameter L can be changed as appropriate.

[0033] The ratio (opening ratio) of the area of ​​the transmissive portions 5b to the area of ​​the picture layer 5 as viewed along the thickness direction D1 is, for example, 10% or more and 70% or less. An opening ratio of 10% or more allows light from the light source 21 to pass through the picture layer 5, so that the image of the light source 21 can be clearly seen when the light source 21 is turned on. An opening ratio of 70% or less allows light from the side opposite the light source 21 as seen from the picture layer 5 to be reflected by the picture layer 5, so that the picture of the picture layer 5 can be clearly seen when the light source 21 is turned off.

[0034] The transparent portions 5b are openings in the pattern layer 5. The transparent portions 5b penetrate the pattern layer 5 in the thickness direction D1. For example, the transparent portions 5b penetrate the concealing layer 3 and the pattern layer 5 in the thickness direction D1. For example, the transparent portions 5b are formed by irradiating with laser light. The transparent portions 5b are formed by micro-drilling using laser light irradiation. Micro-drilling can achieve precise processing, and can drill holes to a depth of several tens of micrometers to several hundreds of micrometers.

[0035] In micro-drilling by irradiating laser light, it is difficult to remove only the pattern layer 5 (or only the pattern layer 5 and the concealing layer 3), and as a result, the surface portion 2b of the base material 2 may also be removed, resulting in scratches 2c on the surface portion 2b. The surface portion 2b of the base material 2 is the portion of the base material 2 that is exposed in the transparent portion 5b.

[0036] Furthermore, the focal depth of the laser light may change due to changes in the ink thickness of the design layer 5 or due to warping or undulation of the film used as the substrate 2 when laser processing a large area. In this case, the laser light irradiation may evaporate the ink in the design layer 5 and the ink in the concealing layer 3 and may also cause scratches 2c on the surface portion 2b of the substrate 2. This is particularly difficult when processing a large area. If scratches 2c are formed on the surface portion 2b, light L from the light source 21 that passes through the transparent portion 5b may be refracted at the scratches 2c. When light L from the light source 21 is refracted at the scratches 2c, diffuse reflection of the light may occur, causing the image generated by the light source 21 to appear cloudy and reducing the visibility of the image.

[0037] 1 to 3, in this embodiment, a transparent resin 7 is applied to the surface portion 2b of the substrate 2 exposed in the transmission portion 5b. As described above, the transparent resin 7 is applied to the picture layer 5 so as to fill the transmission portion 5b and to cover the surface 5c of the picture layer 5 opposite the substrate 2. The transparent resin 7 is applied so as to cover scratches 2c formed in the surface portion 2b of the substrate 2.

[0038] The transparent resin 7 is made of a material whose refractive index is close to that of the substrate 2. In this case, the transparent resin 7 is applied so as to cover the scratches 2c formed on the surface portion 2b, thereby reducing the refraction of light at the scratches 2c. As a result, diffuse reflection of the light L from the light source 21 can be suppressed, reducing the cloudiness of the image. As a result, the visibility of the image illuminated by the light L from the light source 21 can be maintained.

[0039] Next, an example of steps in a method for manufacturing a printed matter according to an embodiment will be described. A method for manufacturing the printed matter 1 described above will be described below. First, the concealing layer 3 and the design layer 5 are laminated onto the substrate 2 (a process for laminating the design layer). In this embodiment, the layers are laminated so that the substrate 2, the concealing layer 3, and the design layer 5 are arranged in this order.

[0040] Next, the picture layer 5 is irradiated with laser light to form the transparent portions 5b in the picture layer 5 (a step of forming transparent portions). At this time, the transparent portions 5b that transmit the light L from the light source 21 are formed in the picture layer 5 along the thickness direction D1 of the picture layer 5 by laser processing. For example, the transparent portions 5b are formed by irradiating the picture layer 5 with ultraviolet laser light and scraping the picture layer 5. As an example, the picture layer 5 is irradiated with ultraviolet laser light in a spiral pattern to form circular transparent portions 5b.

[0041] After the transparent portions 5b are formed, a transparent resin 7 is applied to the surface portions 2b of the substrate 2 exposed in the transparent portions 5b (a step of applying a transparent resin). At this time, the transparent resin 7 is applied to the picture layer 5 so as to fill the transparent portions 5b with the transparent resin 7 and cover the surface 5c of the picture layer 5. Through the above steps, a series of steps in the method for manufacturing the printed matter 1 is completed.

[0042] Next, the effects obtained from the printed matter 1 and display device 20 according to this embodiment will be described. The printed matter 1, method for manufacturing the printed matter 1, and display device 20 according to this embodiment include a substrate 2 and a picture layer 5. The picture layer 5 has a transmissive portion 5b that transmits light from a light source 21 along the thickness direction D1 of the picture layer 5. The surface portion 2b of the substrate 2 is exposed in the transmissive portion 5b, and a transparent resin 7 is applied to the surface portion 2b of the substrate 2. Therefore, even if a scratch 2c is caused by the laser light when the picture layer 5 is irradiated with laser light to form the transmissive portion 5b in the picture layer 5, the application of the transparent resin 7 to the surface portion 2b of the substrate 2 can suppress refraction of light due to the scratch 2c. This prevents a decrease in image visibility.

[0043] In this embodiment, even if a scratch 2c occurs on the surface portion 2b, the influence of the scratch 2c can be suppressed by the transparent resin 7 applied to the scratch 2c. Therefore, it becomes possible to produce a printed matter 1 by laser processing on a large area where the warping or undulation of the film used as the substrate 2 becomes large. In addition, it becomes possible to process a substrate 2 that is thinner than before. For large areas, 2 This makes it possible to produce products using laser processing on a large area.

[0044] As described above, the printed matter 1 may include a concealing layer 3 located between the light source 21 and the picture layer 5. In this case, by providing the concealing layer 3 between the light source 21 and the picture layer 5, it is possible to prevent the color of the light source 21 itself, that is, the black color of the display surface if the light source 21 is a display surface, from becoming apparent when the light source 21 is not emitting light L. Therefore, by suppressing colors such as black, the picture of the picture layer 5 can be displayed more clearly.

[0045] The height of the transparent resin 7 relative to the substrate 2 may be equal to or greater than the height of the transmissive portion 5b relative to the substrate 2. In this case, the transparent resin 7 becomes smooth, and therefore bonding can be performed without problems such as air bubbles.

[0046] (Second embodiment) Next, a printed matter and a display device according to a second embodiment will be described. Some configurations of the printed matter and the display device according to various embodiments described below are the same as some configurations of the printed matter 1 and the display device 20 according to the first embodiment. In the following, parts that are the same as the configurations of the printed matter 1 and the display device 20 will be assigned the same reference numerals and descriptions thereof will be omitted as appropriate.

[0047] Fig. 4 is a cross-sectional view schematically showing a display device 20A according to a second embodiment. As shown in Fig. 4, the display device 20A includes a printed matter 1A and a light source 21. The printed matter 1A includes a substrate 2 and a picture layer 5. The printed matter 1A differs from the printed matter 1 in that it does not include a concealing layer 3. As in this printed matter 1A, it is also possible to omit the concealing layer 3.

[0048] (Third embodiment) Next, a printed matter and a display device according to a third embodiment will be described. Fig. 5 is a cross-sectional view schematically showing a display device 20B according to the third embodiment. The display device 20B has a printed matter 1B and a light source 21. The printed matter 1B differs from the printed matter 1 described above in that the substrate 2, the picture layer 5, and the concealing layer 3 are arranged in this order. That is, the substrate 2 is arranged on the side of the picture layer 5 opposite the concealing layer 3. In the display device 20, the substrate 2, the picture layer 5, the concealing layer 3, and the light source 21 are arranged in this order.

[0049] (Fourth embodiment) Next, a printed matter and a display device according to a fourth embodiment will be described. Fig. 6 is a cross-sectional view schematically showing a display device 20C according to the fourth embodiment. The display device 20C has a printed matter 1C and a light source 21. The printed matter 1C differs from the above-described printed matter 1 in that the amount of transparent resin 7 is small.

[0050] In the printed matter 1C, the height of the transparent resin 7 relative to the substrate 2 is equal to or less than the height of the transmissive portions 5b relative to the substrate 2. In other words, the height of the transparent resin 7 relative to the substrate 2 is equal to or less than the height of the surface 5c of the picture layer 5 facing away from the substrate 2. FIG. 6 shows an example in which the height of the transparent resin 7 relative to the substrate 2 is lower than the height of the transmissive portions 5b relative to the substrate 2. However, the height of the transparent resin 7 relative to the substrate 2 may be the same as the height of the transmissive portions 5b relative to the substrate 2.

[0051] Below, we will explain the differences between the method for manufacturing printed matter 1C and the method for manufacturing printed matter 1. In the method for manufacturing printed matter 1C, transparent resin 7 is applied to surface portion 2b of substrate 2 exposed in transmission portion 5b, and then the transparent resin 7 is wiped off (step of wiping off transparent resin). Wiping off transparent resin 7 is performed, for example, by applying transparent resin 7 to picture layer 5 and then rolling a roll on surface 5c of picture layer 5 opposite substrate 2. By wiping off transparent resin 7 in this manner, the height of transparent resin 7 relative to substrate 2 becomes equal to or less than the height of transmission portion 5b relative to substrate 2.

[0052] As described above, in the printed matter 1C and the display device 20C, the height of the transparent resin 7 relative to the substrate 2 is equal to or less than the height of the transmissive portion 5b relative to the substrate 2. In this case, the amount of transparent resin 7 applied can be reduced, thereby reducing the cost of the material for the transparent resin 7. In other words, by reducing the amount of transparent resin 7 initially applied to the picture layer 5, the minimum amount of transparent resin 7 necessary can be applied to the surface portion 2b of the substrate 2, which contributes to reducing the cost of the transparent resin 7.

[0053] (Fifth embodiment) Next, a printed matter and a display device according to a fifth embodiment will be described. Fig. 7 is a cross-sectional view schematically showing a display device 20D according to the fifth embodiment. The display device 20D has a printed matter 1D and a light source 21. The printed matter 1D differs from the previously described printed matter 1C in that the substrate 2, the picture layer 5, and the concealing layer 3 are arranged in this order. That is, the height of the transparent resin 7 relative to the substrate 2 is equal to or less than the height of the transmissive portion 5b relative to the substrate 2, and the substrate 2 is disposed on the surface of the picture layer 5 opposite the light source 21.

[0054] Next, examples of printed matter according to the present disclosure will be described. Note that the present invention is not limited to the contents of the following examples. Below, printed matter according to Examples 1 to 7 and printed matter according to Comparative Examples 1 and 2 will be described. Example 1 A biaxially stretched transparent PET film with a thickness of 100 μm was used as the substrate 2, and a solid white concealing layer 3 and a wood grain pattern picture layer 5 were printed on the substrate. The size of the substrate 2 was A4 size. Then, ultraviolet laser light was irradiated onto the picture layer 5 and the concealing layer 3 using a UV laser irradiator (manufactured by Advanced Optwave) to form transparent portions 5b, which were holes with a constant pitch. The ultraviolet laser light had a wavelength of 355 nm, a repetition frequency of 100 kHz, two circular processing times, and an output of 10 W. Transparent portions 5b with an inner diameter of 120 μm were formed with an arrangement interval W of 120 μm. A transparent resin 7 was then applied to the entire picture layer 5. The transparent resin 7 was prepared by adding a hexaisocyanate-based curing agent and methyl ethyl ketone as a diluent to a transparent resin (UC Clear (manufactured by DIC Graphics)). The transparent resin 7 was coated on the picture layer 5 to a thickness of 10 μm so as to fill the transparent portion 5 b, thereby producing the printed matter 1 . Example 2 A printed matter 1A was produced that did not have a concealing layer 3. Other specifications of the printed matter 1A were the same as those of the printed matter 1 according to Example 1. Example 3 A printed matter 1B was produced in which a substrate 2, a design layer 5, and a concealing layer 3 were arranged in this order. The other specifications of the printed matter 1B were the same as those of the printed matter 1 according to Example 1. Example 4 As in Example 1, after the transparent resin 7 was coated on the picture layer 5, a wiping step was added before the transparent resin 7 dried. In this wiping step, the transparent resin 7 was wiped off from all areas other than the surface portion 2b of the substrate 2 and the inner portion of the transmissive portion 5b. Then, the printed matter 1C described above was produced. Example 5 A printed matter 1D was produced in which a substrate 2, a design layer 5, and a concealing layer 3 were arranged in this order. The other specifications of the printed matter 1D were the same as those of the printed matter 1C according to Example 4. Example 6 A printed matter 1 was produced in the same manner as in Example 1, and the thickness of the substrate 2 was set to 50 μm. Example 7 A printed matter 1 was produced in the same manner as in Example 1, and the thickness of the substrate 2 was set to 25 μm. (Comparative Example 1) A printed matter was produced that did not contain the transparent resin 7. Other specifications of the printed matter according to Comparative Example 1 were the same as those of the printed matter 1 according to Example 1. (Comparative Example 2) A printed matter was produced that did not have the transparent resin 7 and the hiding layer 3. Other specifications of the printed matter according to Comparative Example 2 were the same as those of the printed matter 1A according to Example 2.

[0055] Light L from light source 21 was irradiated onto each of the printed matter according to Examples 1 to 7 and Comparative Examples 1 and 2, and the visibility of the image due to light L was examined. As a result, in the printed matter according to Comparative Examples 1 and 2, scratches 2c formed in surface portion 2b of substrate 2 located at the bottom of transmissive portion 5b caused diffused reflection, resulting in a cloudy appearance in the image. In contrast, in the printed matter according to Examples 1 to 7, transparent resin 7 was filled into transmissive portion 5b, which reduced the effect of scratches 2c, suppressed diffused reflection, and prevented the image from becoming cloudy, thereby suppressing a decrease in visibility.

[0056] Furthermore, the relationship between the wavelength of light to be transmitted and the transmittance of visible light (wavelengths of 400 nm to 830 nm) was measured for the printed matter of Examples 1 and 2 and the printed matter of Comparative Examples 1 and 2. The transmittance of visible light was measured using a transmittance measuring device (UV-3600i, manufactured by Shimadzu Corporation). Figure 8 is a graph showing the measurement results.

[0057] 8, the printed matter 1 according to Example 1, which had the concealing layer 3 and the transparent resin 7, was able to have a higher visible light transmittance than the printed matter according to Comparative Example 1, which did not have the transparent resin 7, and the printed matter according to Example 2, which had the transparent resin 7, was able to have a higher visible light transmittance than the printed matter according to Comparative Example 2, which did not have the transparent resin 7. Example 1, which had the concealing layer 3, was able to improve the transmittance by 4.9% compared to Comparative Example 1, and Example 2, which did not have the concealing layer 3, was able to improve the transmittance by 24.7% compared to Comparative Example 2.

[0058] Various embodiments and examples of the printed matter, the method for manufacturing the printed matter, and the display device according to the present disclosure have been described above. However, the printed matter, the method for manufacturing the printed matter, and the display device according to the present disclosure are not limited to the above-described embodiments or examples, and may be further modified within the scope of the gist of the claims. In other words, the shape, size, material, number, and arrangement of each part of the printed matter and the display device according to the present disclosure, as well as the content and order of the steps in the method for manufacturing the printed matter, can be changed as appropriate within the scope of the above-described gist.

[0059] FIG. 9(a) is a diagram showing a printed matter 1E according to a modified example. The printed matter 1E has a pattern layer 5E. The pattern layer 5E has a plurality of reflective portions 33c aligned along the in-plane direction of the pattern layer 5E, and transmissive portions 33b provided in locations other than the reflective portions 33c of the pattern layer 5E. In the pattern layer 5E, the reflective portions 33c are formed in a dot pattern. The reflective portions 33c are arranged in a grid pattern.

[0060] FIG. 9(b) shows a printed matter 1F according to a further modification. The printed matter 1F has a pattern layer 5F. The pattern layer 5F has a plurality of transmissive portions 43b extending in the first direction D2 and a plurality of reflective portions 43c extending in the first direction D2 at positions adjacent to the transmissive portions 43b in the second direction D3. In the pattern layer 5F, the transmissive portions 43b and the reflective portions 43c are formed in a striped pattern. The transmissive portions 43b and the reflective portions 43c are arranged alternately along the second direction D3. As described above, the printed matter 1E and printed matter 1F according to the modification can achieve the same effects as the printed matter 1 described above by applying a transparent resin 7 to the pattern layer 5E and the pattern layer 5F. [Explanation of symbols]

[0061] 1,1A,1B,1C,1D,1E,1F…printed material, 2…substrate, 2b…surface portion, 2c…scratches, 3…concealing layer, 5,5E,5F…painting layer, 5b…transparent portion, 5c…surface, 7…transparent resin, 20,20A,20B,20C,20D…display device, 21…light source, 33b…transparent portion, 33c…reflective portion, 43b…transparent portion, 43c…reflective portion, D1…thickness direction, D2…first direction, D3…second direction, L…diameter, W…arrangement interval.

Claims

1. A printed matter that transmits light from a light source, A substrate; A design layer formed on the substrate; Equipped with the picture layer has a transmitting portion that transmits light from the light source along a thickness direction of the picture layer, a transparent resin is applied to a surface portion of the base material exposed in the transmission portion; printed matter.

2. a concealing layer positioned between the light source and the pattern layer; The printed matter according to claim 1.

3. a height of the transparent resin relative to the base material is equal to or greater than a height of the transmitting portion relative to the base material; The printed matter according to claim 1.

4. a height of the transparent resin relative to the base material is equal to or less than a height of the transmitting portion relative to the base material; The printed matter according to claim 1.

5. Scratches are formed on the surface of the substrate. The printed matter according to claim 1.

6. A method for producing a printed matter that transmits light from a light source and has a substrate and a picture layer formed on the substrate, comprising: a step of irradiating the pattern layer with laser light to form a transparent portion in the pattern layer that transmits light from the light source along a thickness direction of the pattern layer; applying a transparent resin to a surface portion of the base material exposed in the transmission portion; Equipped with Methods for producing printed materials.

7. The printed matter according to any one of claims 1 to 5, A light source and Equipped with Display device.

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