Print and display

Abstract

To provide a print and a display that can reduce the influence of the color of a light source that is turned off, on visibility of a pattern on a printing layer.SOLUTION: In a display 1, when a light source 3 is turned off, a pattern on a pattern printing layer 5 of a print 2 can be visually recognized. When the light source 3 is turned on, the details indicated by light from the light source 3 can be visually recognized. When the light source 3 is turned on, a surface 3a of the light source 3 is in black. Meanwhile, the print 2 has a reflective layer 50 that reflects light between the pattern printing layer 5 and the light source 3. Consequently, the reflective layer 50 can reflect external light before the light is incident on the light source 3 in black. This can reduce the appearance of black on the surface of the light source 3 on the external appearance of the pattern.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to printed matter and display devices. [Background technology]

[0002] Conventionally, as a decorative sheet for walls, etc., a printed matter is known that includes a substrate and a printed layer provided on the substrate, the printed layer having a pattern such as a wood grain pattern or an abstract pattern. On the wall surface on which the printed matter is provided, the pattern is always visible. Meanwhile, it is required that the visible pattern changes depending on whether or not a light source provided on the back side of the printed matter is used.

[0003] For example, Patent Document 1 discloses a printed matter having a light source under a printed layer, in which a pattern is visible due to reflected light from a printed layer made of RGB interference pigments when the light source is off, and a pattern is visible due to transmitted light from a CMY printed layer when the light source is on (see FIG. 11 in Patent Document 1). Patent Document 2 discloses a decorative sheet having two patterns using interference pigments, in which the patterns are visible when an image on the back side is not displayed, and the images are visible when an image on the back side is displayed (see FIGS. 1 and 2 in Patent Document 2). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 5725581 [Patent Document 2] Patent No. 6839319 Summary of the Invention [Problem to be solved by the invention]

[0005] Here, in a device having a light source under a printing layer as in Patent Documents 1 and 2, when the light source is turned off, the surface of the light source is in a black state. In this case, the color of the pattern on the printing layer may be affected by the black color of the surface of the light source. In this state, there is a problem that the appearance of the pattern looks different from the actual color of the pattern.

[0006] The present invention is intended to solve the above-mentioned problems, and aims to provide a printed matter and a display device that can reduce the effect of the color of a turned-off light source on the visibility of the image in a printing layer. [Means for solving the problem]

[0007] [1] In one aspect, the present invention provides a display device comprising a printed matter having a light-transmitting substrate and a picture-printed layer, and a light source, wherein the printed matter has a reflective layer that reflects light between the picture-printed layer and the light source.

[0008] In this display device, when the light source is turned off, the pattern of the pattern printing layer of the printed matter can be seen. Also, when the light source is turned on, the content indicated by the light of the light source can be seen. Here, when the light source is turned off, the surface of the light source is black. In contrast, the printed matter has a reflective layer that reflects light between the pattern printing layer and the light source. Therefore, the reflective layer can reflect light from outside before the light is incident on the black light source. Therefore, it is possible to reduce the black color of the surface of the light source from appearing in the appearance. As a result, it is possible to reduce the influence of the color of the light source when it is turned off on the visibility of the pattern of the printing layer.

[0009] [2] In the display device of [1] above, the reflective layer may have a total light transmittance of 30% to 70%. In this case, it is possible to prevent the light from the light source from being difficult to see from the outside when the display device is turned on, which would be caused by the reflective layer having an excessively low total light transmittance.

[0010] [3] In the display device of [1] or [2] above, the reflective layer may be formed by vapor deposition of metal. In this case, the black color of the surface of the light source is further reduced from appearing on the outside, and the printed pattern can be displayed without loss when the light is off. In addition, the reflective layer can be formed of a thin film.

[0011] [4] In any of the display devices of [1] to [3] above, the reflective layer may be made of an optical member. In this case, the black color of the surface of the light source is further reduced from appearing on the outside, and the printed pattern can be displayed without loss when the light is off. In addition, the reflectance can be adjusted.

[0012] [5] Another aspect of the present invention relates to a printed matter. The printed matter is arranged to cover a light source of a display device, and includes a light-transmitting base material, a picture-printed layer, and a reflective layer that is provided on one side of the picture-printed layer and reflects light. When the printed matter is incorporated into the light source of the display device, it is possible to obtain the same functions and effects as the above-mentioned display device. Effect of the Invention

[0013] According to the present invention, it is possible to provide a display device and a printed matter that can reduce the effect of the color of an unlit light source on the visibility of an image on a print layer. [Brief description of the drawings]

[0014] [Figure 1] FIG. 1 is a cross-sectional view illustrating a display device according to a first embodiment. [Diagram 2] FIG. 2 is a cross-sectional view that illustrates a pattern printed layer included in the display device shown in FIG. [Diagram 3] FIG. 3 is a schematic diagram for explaining the operation of the display device according to the first embodiment. [Figure 4] FIG. 4 is a schematic diagram for explaining the operation of a display device according to a comparative example. [Diagram 5] 1 is a table showing conditions of comparative examples and examples. [Figure 6]FIG. 6 is a cross-sectional view illustrating a printed matter according to the second embodiment. [Figure 7] FIG. 7 is a cross-sectional view that illustrates a white pattern layer included in the printed matter illustrated in FIG. [Figure 8] FIG. 8 is a cross-sectional view illustrating a printed matter according to the third embodiment. [Figure 9] FIG. 9 is a cross-sectional view illustrating a printed matter according to the fourth embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] Specific examples of printed matter and display devices according to embodiments of the present invention will be described below with reference to the drawings. Note that the present invention is not limited to these examples, but is indicated by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims. In the following description, the same elements in the description of the drawings will be given the same reference numerals, and duplicate descriptions will be omitted.

[0016] [First embodiment] FIG. 1 is a cross-sectional view showing a display device according to a first embodiment. FIG. 2 is a cross-sectional view showing a pattern printed layer included in the display device shown in FIG. 1. As shown in FIG. 1, the display device 1 includes a printed material 2 and a light source 3. The printed material 2 is a sheet for expressing a pattern, and includes a light-transmitting substrate 4, a pattern printed layer 5, a transparent smoke printed layer 30, and a reflective layer 50. In addition, the layers of the printed layer 2 other than the reflective layer 50 may be collectively referred to as a main body 55. The printed material 2 is provided in front of the light source 3 (between the viewer and the light source 3). The printed material 2 has total light transmittance. Therefore, when the power source of the light source 3 is ON, the viewer can see the light from the light source 3 that has passed through the printed material 2, and when the power source of the light source 3 is OFF, the viewer can see the pattern expressed by the printed material 2. The light source 3 is, for example, a display device.

[0017] The light-transmitting substrate 4 is a substrate having visible light transmissibility. The light-transmitting substrate 4 is made of, for example, a transparent resin. Examples of the transparent resin include PET, PMMA, polyethylene, polypropylene, and nylon. The light-transmitting substrate 4 may be a glass substrate. The light-transmitting substrate 4 has a thickness of, for example, 25 μm to 250 μm. In the case of a glass substrate, the thickness is, for example, about 0.5 mm to 10 mm. If necessary, a surface protection layer may be provided on the surface side of the light-transmitting substrate 4 (the side opposite to the picture print layer 5).

[0018] The picture-printed layer 5 is a layer that expresses a picture of the printed matter 2. The picture-printed layer 5 includes a first color pattern layer 10 provided on one surface 4a of the light-transmitting substrate 4, and a second color pattern layer 20 provided on the first color pattern layer 10.

[0019] The first color pattern layer 10 can be provided on the surface 4a by, for example, screen printing, inkjet printing, gravure printing, or offset printing. As shown in FIG. 2, the first color pattern layer 10 is composed of a plurality of first color dots 11. Here, the "dot" means a point that is an element that constitutes a printed image, and the shape is not limited to a circle, and may be a rectangle, a polygon, or other shape. Each of the plurality of first color dots 11 includes a first color binder 12 and a plurality of first color pigment chips 13 dispersed inside the first color binder 12. The content of the plurality of first color pigment chips 13 is, for example, in the range of 0.5 parts by weight to 20 parts by weight, assuming that the first color binder 12 is 100 parts by weight.

[0020] Examples of the first color binder 12 include vinyl resins, acrylic resins, thermoplastic urethane resins, polyester resins, and polycarbonate resins. The thickness of the first color pattern layer 10 is, for example, 1 μm to 10 μm. The first color pattern layer 10 may contain a curing agent. In this case, the heat resistance of the first color pattern layer 10 and the adhesion of the first color pattern layer 10 to the light-transmitting substrate 4 can be improved.

[0021] In the first embodiment, the first color pigment chips 13 are first interference pigments 14a and 14b of multiple colors that generate different interference lights. Each of the first interference pigments 14a and 14b is composed of a flake (not shown) having visible light transparency and a metal oxide film (not shown) that covers the flake. The light reflected on the surface of the metal oxide film out of the light incident on the first color pattern layer 10 from the translucent substrate 4 side interferes with the light that passes through the metal oxide film and is reflected on the surface of the flake, generating interference light. By adjusting the film thickness and the refractive index of the metal oxide film, interference light having a desired wavelength can be generated.

[0022] In the first embodiment, each of the first interference pigments 14a and 14b is a titanium dioxide-coated mica. The particle size range of the titanium dioxide-coated mica includes, for example, a range of 25 μm to 60 μm. Here, the "particle size" means the longest diameter of the particle cross section. The flakes constituting the first interference pigments 14a and 14b may be other than mica, for example, silica, alumina, glass, or polysilicate. The metal oxide film constituting the first interference pigments 14a and 14b may be other than titanium dioxide, for example, zirconium oxide, zinc oxide, iron oxide, or tin oxide.

[0023] When the incident light L is incident on the first color pattern layer 10, the first interference pigments 14a and 14b generate first interference lights 15a and 15b that are different from each other. That is, the wavelengths of the first interference lights 15a and 15b are different from each other. As a result, the first interference pigments 14a and 14b exhibit a mixed color. The blending amounts of the first interference pigments 14a and 14b may be the same or different from each other.

[0024] The second color pattern layer 20 can be provided on the first color pattern layer 10 by, for example, screen printing, inkjet printing, gravure printing, or offset printing. As shown in FIG. 2, the second color pattern layer 20 is composed of a plurality of second color dots 21. Here, the "dot" means a point that is an element that constitutes a printed image, and the shape is not limited to a circle, and may be a rectangle, a polygon, or other shape. Each of the plurality of second color dots 21 includes a second color binder 22 and a plurality of second color pigment chips 23 dispersed inside the second color binder 22. The content of the plurality of second color pigment chips 23 is, for example, in the range of 0.5 parts by weight to 20 parts by weight, when the second color binder 22 is 100 parts by weight.

[0025] Examples of the second color binder 22 include vinyl resins, acrylic resins, thermoplastic urethane resins, polyester resins, and polycarbonate resins. The thickness of the second color pattern layer 20 is, for example, 1 μm to 10 μm. The second color pattern layer 20 may contain a curing agent. In this case, the heat resistance of the second color pattern layer 20 and the adhesion of the second color pattern layer 20 to the first color pattern layer 10 can be improved.

[0026] In the first embodiment, the multiple second color pigment chips 23 are second interference pigments 24 that generate monochromatic interference light different from the mixed color represented by the first interference pigments 14a and 14b. The second interference pigment 24 is composed of a flake (not shown) having visible light transparency and a metal oxide film (not shown) that covers the flake. The light reflected on the surface of the metal oxide film out of the light incident on the second color pattern layer 20 from the translucent substrate 4 side interferes with the light that passes through the metal oxide film and is reflected on the surface of the flake, generating interference light. By adjusting the film thickness and the refractive index of the metal oxide film, interference light having a desired wavelength can be generated.

[0027] In the first embodiment, the second interference pigment 24 is titanium dioxide-coated mica. The particle size range of the titanium dioxide-coated mica includes, for example, a range of 25 μm or more and 60 μm or less. Here, the "particle size" means the longest diameter of the particle cross section. The flakes constituting the second interference pigment 24 may be other than mica, for example, silica, alumina, glass, or polysilicate. The metal oxide film constituting the second interference pigment 24 may be other than titanium dioxide, for example, zirconium oxide, zinc oxide, iron oxide, or tin oxide.

[0028] When the incident light L is incident on the second color pattern layer 20, the second interference pigment 24 generates a monochromatic second interference light 25. As a result, the second interference pigment 24 exhibits a monochromatic color. The second interference pigment 24 may be any interference pigment that generates a monochromatic second interference light 25 different from the mixed color exhibited by the first interference pigments 14a and 14b.

[0029] The transparent smoke printed layer 30 has a function of attenuating light from the front side of the viewpoint that passes through the printed matter 2. The transparent smoke printed layer 30 is provided on the outermost surface of the picture printed layer 5 on the opposite side to the light-transmitting substrate 4. In the first embodiment, the transparent smoke printed layer 30 is provided on the second color pattern layer 20 as shown in FIG. 1. The transparent smoke printed layer 30 can be provided on the second color pattern layer 20 by, for example, screen printing, inkjet printing, gravure printing, or offset printing using an ink in which a small amount of carbon black is dispersed in a resin binder such as a vinyl-based, acrylic-based, urethane-based, or polyester-based resin binder. The thickness of the transparent smoke printed layer 30 is, for example, 1 μm to 10 μm.

[0030] In the printed matter 2, a pattern is expressed by additively mixing first interference light 15a, 15b generated by the first interference pigments 14a, 14b and second interference light 25 generated by the second interference pigment 24.

[0031] As shown in FIG. 1, the reflective layer 50 is provided between the picture-printed layer 5 and the light source 3. The reflective layer 50 is a layer that reflects light. In this embodiment, the reflective layer 50 is provided on the back surface 55b of the main body 55, opposite to the front surface 55a on which the incident light L is incident. The reflective layer 50 has a front surface 50a on the incident side and a back surface 50b opposite to the front surface 50a. The reflective layer 50 has a property of reflecting light incident from the front surface 50a side and transmitting light incident from the back surface 50b side. However, a part of the light incident from the front surface 50a side is absorbed by the reflective layer 50, and a part of the light is transmitted to the light source 3 side.

[0032] The reflective layer 50 may be formed by vapor deposition of a metal. In this case, the reflective layer 50 is composed of a film formed by vapor deposition of a metal on a transparent film. Examples of metals for vapor deposition include Sn, In, and Al. Alternatively, the reflective layer 50 may be composed of an optical member. An optical member is a member that itself has a reflective property, and is, for example, TiO 2 , SiO 2 Alternatively, the reflective layer 50 may be formed by laminating a plurality of resin layers such as PET material.

[0033] With reference to FIG. 3(a), the light when the power supply of the light source 3 is OFF will be described. When the power supply of the light source 3 is OFF, the light source 3 does not emit light, and the surface 3a is in a black state. As shown in FIG. 3(a), the incident light L is emitted to the outside as interference light IL by the picture print layer 5. A part of the incident light L is incident on the reflective layer 50 from the main body 55 as transmitted light TL1. The reflective layer 50 receives the transmitted light TL1 from the main body 55 at a position in front of the light source 3. The reflective layer 50 reflects a part of the transmitted light TL1 as reflected light RL1. The reflected light RL1 is emitted to the outside via the main body 55. The other part of the transmitted light TL1 is transmitted through the reflective layer 50 and enters the light source 3 as transmitted light TL2. The transmitted light TL2 is reflected by the black surface 3a of the light source 3 as reflected light RL2. The reflected light RL2 is emitted to the outside via the reflective layer 50 and the main body 55. The reflected light RL1 is attenuated when passing through the main body 55. The reflected light RL2 is attenuated when passing through the reflective layer 50 and the main body 55. When the power of the light source 3 is turned off, the interference light IL of the picture-printed layer 5, the reflected light RL1 of the reflective layer 50, and the reflected light RL2 of the black surface 3a of the light source 3 are visible from the outside.

[0034] With reference to Fig. 3(b), the light when the light source 3 is powered on will be described. When the light source 3 is powered on, light SL indicating the display content is generated on the surface 3a of the light source 3. The light SL enters the back surface 50b of the reflective layer 50, and a portion of it passes through the reflective layer 50 and exits from the surface 50a as transmitted light TL3. The transmitted light TL3 exits to the outside via the main body 55. When the light source 3 is powered on, the transmitted light TL3 of the light source 3 is visible.

[0035] Here, for comparison with the printed matter 2 and the display device 1 according to the present embodiment, a printed matter 102 and a display device 101 according to a comparative example will be described with reference to FIG. 4. The printed matter 102 and the display device 101 according to the comparative example do not have a reflective layer 50. With reference to FIG. 4(a), light when the power source 3 is turned off will be described. When the power source 3 is turned off, the light source 3 does not emit light, and the surface 3a is in a black state. As shown in FIG. 4(a), as described above, the incident light L is emitted to the outside as interference light IL by the picture print layer 5. A part of the incident light L is incident on the light source 3 from the main body 55 as transmitted light TL1. The transmitted light TL1 is reflected by the black surface 3a of the light source 3 as reflected light RL2. The reflected light RL2 is emitted to the outside through the reflective layer 50 and the main body 55. The reflected light RL2 is attenuated when passing through the main body 55. When the power supply of the light source 3 is turned off, only the interference light IL from the picture print layer 5 and the reflected light RL2 from the black surface 3a of the light source 3 are visible from the outside.

[0036] With reference to Fig. 4(b), the light when the light source 3 is powered on will be described. When the light source 3 is powered on, light SL indicating the display content is generated on the surface 3a of the light source 3. The light SL is emitted to the outside via the main body 55. When the light source 3 is powered on, the light SL from the light source 3 is visible.

[0037] In the display device 101 according to the comparative example, as shown in FIG. 4(a), when the power source of the light source 3 is turned off, the interference light IL of the picture-printed layer 5 and the reflected light RL2 of the black surface 3a of the light source 3 are visible from the outside. In this way, the visible light includes the black reflected light RL2. If any area of ​​the picture of the picture-printed layer 5 is colored with a color other than white, the influence of the black reflected light RL2 on the appearance of the picture from the outside is limited. In contrast, if the picture of the picture-printed layer 5 includes an area of ​​a whitish color, the picture in that area from the outside is influenced by the black reflected light RL2. Furthermore, if such a problem is addressed by lowering the transmittance of the main body 55, a problem occurs in that the image becomes difficult to see when the light source 3 is turned on.

[0038] In contrast, in the display device 1 according to this embodiment, as shown in Fig. 3(a), when the light source 3 is turned off, the interference light IL of the picture printed layer 5, the reflected light RL1 of the reflective layer 50, and the reflected light RL2 of the black surface 3a of the light source 3 are visible from the outside. Of the visible light, the black reflected light RL2 is the reflected light RL2 of the transmitted light TL2 in a state of being attenuated by the reflective layer 50, and is further attenuated as it further passes through the reflective layer 50 and is emitted to the outside. Therefore, even if a whitish area exists in the picture of the picture printed layer 5, the influence of the black reflected light RL2 on the appearance of the area can be suppressed.

[0039] As described above, when the pattern of the pattern printing layer 5 has a whitish color area, the effect becomes more prominent. The whitish color corresponds to, for example, a range of L↑* value of 50 or more in the L↑*a↑*b↑* color system. For the whitish color area, a structure similar to that of the white pattern layer 40 described in the second embodiment of Figs. 6 and 7 described later may be adopted. Note that the color of the portion other than such a whitish color area is not particularly limited. For example, the first interference pigments 14a and 14b may be, for example, a red interference pigment (red pearl pigment) and a gold interference pigment (gold pearl pigment), respectively, and the second interference pigment 24 may be a green interference pigment (green pearl pigment).

[0040] In the comparative example, as shown in FIG. 4(a), the light SL from the light source 3 is emitted to the outside through the main body 55, not through the insulating layer 50. In contrast, as shown in FIG. 3(a), in the display device 1 according to the embodiment, the light SL from the light source 3 is emitted to the outside as transmitted light TL3 by passing through not only the main body 55 but also the insulating layer 50. Therefore, when the light SL from the light source 3 has the same brightness, in the display device 1 according to the present embodiment, the image of the light source 3 visible from the outside when the light source 3 is ON is darker than that in the comparative example. In order to make the image (especially the white display and characters) well visible in this state, it is preferable to set the total light transmittance of the printed matter 2 and the total light transmittance of the reflective layer 50 within a predetermined range.

[0041] The total light transmittance of the main body 55 may be set to, for example, 30% to 70%. The total light transmittance of the reflective layer 50 alone may be set to, for example, 30% to 70%. The total light transmittance of the entire printed matter 2, which is a combination of the main body 55 and the reflective layer 50, may be set to, for example, 30% to 70%. The total light transmittance here refers to a value measured using a spectrophotometer (for example, spectrophotometer UV-2100 manufactured by Shimadzu Corporation).

[0042] FIG. 5 is a table showing the conditions of the printed matter according to the comparative example and the printed matter according to the example. The printed matter according to the comparative example does not have a reflective layer 50 and is composed only of a main body 55 (the configuration shown in FIG. 4). The main body 55 of the comparative example was prepared with a total light transmittance of 30% to 70%. The printed matter according to the example 1 has a main body 55 with a total light transmittance of 70% and a reflective layer 50 with a total light transmittance of 60%. The total light transmittance of the entire printed matter according to the example 1 falls within the range of 30% to 70%. The printed matter according to the example 2 has a main body 55 with a total light transmittance of 70% and a reflective layer 50 with a total light transmittance of 30%. The total light transmittance of the entire printed matter according to the example 2 is less than 30%. In all the printed matters, a white pattern was used as the pattern printed layer 5. In the printed matter according to the comparative example, when the power source 3 is turned off, the influence of the black color of the light source 3 appears, resulting in the pattern appearing in a color different from the original color, regardless of whether the power source is 30% to 70%. On the other hand, in both the printed matter according to the examples 1 and 2, even when the power source 3 is turned off, the black color of the light source 3 is concealed, the pattern appears in a color equivalent to the original color, and the influence of the black color can be suppressed. The power source 3 is turned on, and an image in which characters are projected on a white screen is projected. At this time, the printed matter according to the example 1 has a natural white appearance to the same extent as the comparative example without the reflective layer 50. On the other hand, the printed matter according to the example 2 has a slightly darker white color than the example 1, and the characters are slightly harder to see.

[0043] In the display device 1 according to the first embodiment described above, when the light source 3 is turned off, the pattern of the pattern printed layer 5 of the printed matter 2 can be visually recognized. Also, when the light source 3 is turned on, the content indicated by the light of the light source 3 can be visually recognized. Here, when the light source 3 is turned off, the surface 3a of the light source 3 is in a black state. In contrast, the printed matter 2 has a reflective layer 50 that reflects light between the pattern printed layer 5 and the light source 3. Therefore, the reflective layer 50 can reflect light from the outside before the light is incident on the black light source 3. Therefore, it is possible to reduce the black color of the surface of the light source 3 from appearing in the appearance. As a result, it is possible to reduce the influence of the color of the light source 3 that is turned off on the visibility of the pattern of the pattern printed layer 5.

[0044] In the display device 1, the total light transmittance of the reflective layer 50 may be 30% to 70%. In this case, it is possible to prevent the light from the light source 3 during lighting from being difficult to see from the outside due to the total light transmittance of the reflective layer 50 being too low.

[0045] In the display device 1, the reflective layer 50 may be formed by metal deposition. In this case, the black color of the surface of the light source is further reduced from appearing on the outside, and the printed image can be displayed without loss when the light is off. In addition, the reflective layer can be formed of a thin film.

[0046] In the display device 1, the reflective layer 50 may be made of an optical member. In this case, the black color of the surface of the light source is further reduced from appearing on the outside, and the printed image can be displayed without loss when the light is off. In addition, the reflectance can be adjusted.

[0047] The printed matter 2 is disposed so as to cover the light source 3 of the display device 1, and includes a light-transmitting base material 4, a picture printed layer 5, and a reflective layer 50 that reflects light and is provided on one side of the picture printed layer 5. When this printed matter 2 is incorporated into the light source 3 of the display device 1, it is possible to obtain the same functions and effects as the display device 1 described above.

[0048] [Second embodiment] In the following, a printed matter 2A according to the second embodiment will be described with reference to Figures 6 and 7. In the description of the second embodiment, descriptions that overlap with the first embodiment will be omitted, and only differences from the first embodiment will be described. In other words, the descriptions of the first embodiment may be used as appropriate in the second embodiment to the extent technically possible.

[0049] Fig. 6 is a cross-sectional view showing a schematic representation of a printed matter according to a second embodiment. Fig. 7 is a cross-sectional view showing a schematic representation of a white pattern layer provided in the printed matter shown in Fig. 6. The printed matter 2A includes a light-transmitting substrate 4 and a picture-printed layer 5. The printed matter 2A further includes a white pattern layer 40 provided on the second color pattern layer 20. At this time, the main body portion 55 includes the light-transmitting substrate 4, the picture-printed layer 5, and the second color pattern layer 20. A reflective layer 50 is provided on the main body portion 55.

[0050] The white pattern layer 40 can be provided on the second color pattern layer 20 by, for example, screen printing, inkjet printing, gravure printing, or offset printing. As shown in FIG. 4, the white pattern layer 40 is composed of a plurality of silver dots 41. Here, the "dot" means a point that is an element that constitutes a printed image, and the shape is not limited to a circle, but may be a rectangle, a polygon, or other shape. Each of the plurality of silver dots 41 contains a silver binder 42 and a plurality of silver pigment chips 43 dispersed inside the silver binder 42. The content of the plurality of silver pigment chips 43 is, for example, in the range of 0.5 parts by weight to 20 parts by weight, when the silver binder 42 is 100 parts by weight.

[0051] Examples of the silver binder 42 include vinyl resins, acrylic resins, thermoplastic urethane resins, polyester resins, and polycarbonate resins. The thickness of the white pattern layer 40 is, for example, 1 μm to 10 μm. The white pattern layer 40 may contain a hardener. In this case, the heat resistance of the white pattern layer 40 and the adhesion of the white pattern layer 40 to the second color pattern layer 20 can be improved.

[0052] The configuration of the printed matter 2A described above also provides the same effects as those of the first embodiment. Furthermore, the second embodiment includes a white pattern layer 40 that is provided on the second color pattern layer 20 and is composed of a plurality of silver dots 41, and each of the plurality of silver dots 41 includes a silver binder 42 and a plurality of silver pigment chips 43 dispersed inside the silver binder 42. This allows the color development of the first color pattern layer 10 and the second color pattern layer 20 to be excellent, and the picture printed layer 5 to have a picture that gives a whitish impression.

[0053] [Third embodiment] In the following, a printed matter 2B according to the third embodiment will be described with reference to Fig. 8. In the description of the third embodiment, descriptions that overlap with the first and second embodiments will be omitted, and only differences from the first and second embodiments will be described. In other words, descriptions of the first and second embodiments may be used as appropriate in the third embodiment to the extent technically possible.

[0054] 8 is a cross-sectional view showing a printed matter according to the third embodiment. The printed matter 2B includes a light-transmitting substrate 4 and a picture-printed layer 5. That is, the printed matter 2B does not include a light-transmitting smoke-printed layer 30 and a white pattern layer 40. Even with the configuration of the printed matter 2B described above, the same effects as those of the first embodiment can be achieved. At this time, the main body 55 includes the light-transmitting substrate 4 and the picture-printed layer 5. A reflective layer 50 is provided on the main body 55.

[0055] [Fourth embodiment] In the following, a printed matter 2C according to the fourth embodiment will be described with reference to Fig. 9. In the description of the fourth embodiment, descriptions that overlap with the first, second, and third embodiments will be omitted, and only differences from the first, second, and third embodiments will be described. In other words, the descriptions of the first, second, and third embodiments may be used as appropriate in the fourth embodiment to the extent technically possible.

[0056] FIG. 9 is a cross-sectional view showing a printed matter according to the fourth embodiment. The printed matter 2C includes a light-transmitting substrate 4, a picture-printed layer 5, a white pattern layer 40, a transparent smoke-printed layer 30, and a reflective layer 50. The white pattern layer 40 is provided on the second color pattern layer 20, and the transparent smoke-printed layer 30 is provided on the white pattern layer 40. The main body 55 includes a light-transmitting substrate 4, a picture-printed layer 5, a white pattern layer 40, and a transparent smoke-printed layer 30. The reflective layer 50 is provided on the main body 55. Even with the configuration of the printed matter 2C described above, the same effects as those of the first, second, and third embodiments can be achieved.

[0057] The display device and printed matter according to the present invention are not limited to the above-mentioned embodiments, and various other modifications are possible. For example, the second color pattern layer may include a first interference pigment of multiple colors that generate different first interference lights, and the first color pattern layer may include a second interference pigment that generates a single-color second interference light that is different from the mixed color exhibited by the multiple first interference pigments. In addition, in each of the above-mentioned embodiments, the first color pigment chips are first interference pigments of two colors, but the first color pigment chips may be first interference pigments of three or more colors.

[0058] The position of the reflective layer 50 in the printed matter 2 is not particularly limited, and it is sufficient that the reflective layer 50 is disposed at least closer to the light source 3 than the picture printed layer 5. For example, the reflective layer 50 may be provided between the picture printed layer 5 and the transmissive smoke printed layer 30.

[0059] The configuration of the picture-printed layer 5 is not limited to the structure shown in Fig. 2. The picture-printed layer 5 may have only one color pattern layer. Alternatively, a picture-printed layer having a structure similar to a picture printed in a printing specification such as gravure printing, offset printing, inkjet printing, screen printing, etc. may be used. [Explanation of symbols]

[0060] 1...Display device, 2,2A,2B,2C...Printed matter, 3...Light source, 5...Picture printing layer, 50...Reflection layer.

Claims

1. A printed matter having a light-transmitting substrate and a picture print layer; A display device comprising: The display device, wherein the printed matter has a reflective layer that reflects light between the picture print layer and the light source.

2. 2. The display device according to claim 1, wherein the reflective layer has a total light transmittance of 30% to 70%.

3. The display device according to claim 1 , wherein the reflective layer is formed by vapor deposition of a metal.

4. The display device according to claim 1 , wherein the reflective layer is made of an optical member.

5. A printed matter arranged to cover a light source of a display device, A light-transmitting substrate; A picture printing layer; A printed matter comprising a reflective layer provided on one side of the picture printed layer and reflective to light.

Images