Molded product and display device

Abstract

To provide a molded product, with which it is possible to express a three-dimensional pattern even by a small number of printed layers of a decorative sheet, and which has excellent producibility by simplifying a color matching operation and a registration operation when printing the decorative sheet.SOLUTION: A molded product includes a resin molded body and a decorative sheet disposed on a surface of the resin molded body. The resin molded body and the decorative sheet have visible light transmittance. The decorative sheet includes a base material layer and a pattern printed layer. The molded product may be an injection molded product or a TOM molded product.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a molded article and a display device. [Background technology]

[0002] Conventionally, decorative sheets have been known as decorative sheets for walls and the like, which include a base material and a printed layer provided on the surface of the base material, and the printed layer has a pattern such as a wood grain pattern or an abstract pattern. On the wall surface on which the decorative sheet 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 decorative sheet is used.

[0003] For example, Patent Document 1 discloses a display device having a light source under a decorative sheet, in which a pattern is visible due to reflected light from a print layer made of RGB interference pigments when the light source is off, and a pattern is visible due to transmitted light from a CMY print 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 the image on the back side is not displayed, and the images are visible when the 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] The printed matter described in Patent Document 1 includes a first color pattern layer, a second color pattern layer, and a third color pattern layer, and the pigment chips contained in each pattern layer are either a red interference pigment, a green interference pigment, or a blue interference pigment. In this printed matter, the number of pattern layers is increased to make the colors more vivid than in conventional printing. The decorative sheet described in Patent Document 2 includes a first design layer containing multiple types of interference pigments and presenting a first mixed color, and a second design layer containing multiple types of interference pigments and presenting a second mixed color different from the first mixed color. In this decorative sheet, since each of the first design layer and the second design layer contains multiple types of interference pigments, there is a risk that color matching and registration work during printing will become complicated.

[0006] The present invention has been made to solve the above-mentioned problems, and aims to provide a molded product that can express a three-dimensional pattern even with a small number of printed layers of a decorative sheet, and has excellent manufacturing efficiency by simplifying the color matching and registration work when printing the decorative sheet. [Means for solving the problem]

[0007] One aspect of the present invention includes the following [1] to [9]. [1] A resin molded body and a decorative sheet disposed on a surface of the resin molded body, The resin molding and the decorative sheet have visible light transmittance, The decorative sheet comprises a base layer and a pattern printed layer, The pattern printed layer is provided on one surface of the base layer, and includes a first color pattern layer including a plurality of first color dots; a second color pattern layer provided on the first color pattern layer and configured by a plurality of second color dots; Each of the first color dots includes a first color binder and a plurality of first color pigment chips dispersed within the first color binder; Each of the plurality of second color dots includes a second color binder and a plurality of second color pigment chips dispersed within the second color binder; one of the plurality of first color pigment chips and the plurality of second color pigment chips is a first interference pigment of a plurality of colors, each of which generates a first interference light different from each other; the other of the plurality of first color pigment chips and the plurality of second color pigment chips is a second interference pigment that generates a second interference light of a single color different from the mixed color exhibited by the plurality of first interference pigments; A molded product that additively mixes the plurality of first interference lights and the second interference light. [2] The molded product according to [1], which is an injection molded product. [3] The molded product according to [1], which is a TOM molded product. [4] A molded product formed only from a decorative sheet, The decorative sheet has visible light transmittance, The decorative sheet comprises a base layer and a pattern printed layer, The pattern printed layer is provided on one surface of the base layer, and includes a first color pattern layer including a plurality of first color dots; a second color pattern layer provided on the first color pattern layer and configured by a plurality of second color dots; Each of the first color dots includes a first color binder and a plurality of first color pigment chips dispersed within the first color binder; Each of the plurality of second color dots includes a second color binder and a plurality of second color pigment chips dispersed within the second color binder; one of the plurality of first color pigment chips and the plurality of second color pigment chips is a first interference pigment of a plurality of colors, each of which generates a first interference light different from each other; the other of the plurality of first color pigment chips and the plurality of second color pigment chips is a second interference pigment that generates a second interference light of a single color different from the mixed color exhibited by the plurality of first interference pigments; A molded product that additively mixes the plurality of first interference lights and the second interference light. [5] The decorative sheet further includes a white pattern layer formed on the second color pattern layer and composed of a plurality of silver dots; The molded product according to any one of [1] to [4], wherein each of the plurality of silver dots includes a silver binder and a plurality of silver pigment chips dispersed within the silver binder. [6] The decorative sheet further comprises a transparent smoke printed layer provided on the outermost surface opposite the base material layer with respect to the picture printed layer. The molded product described in any one of [1] to [5]. [7] The molded article according to any one of [1] to [6], wherein each of the first interference pigment and the second interference pigment contains titanium dioxide-coated mica having a particle size of 25 μm or more and 60 μm or less. [8] The content of the plurality of first color pigment chips is 0.5 parts by mass or more and 20 parts by mass or less with respect to 100 parts by mass of the first color binder, The molded product according to any one of [1] to [7], wherein the content of the plurality of second color pigment chips is 0.5 parts by mass or more and 20 parts by mass or less per 100 parts by mass of the second color binder. [9] A display device comprising the molded article according to any one of [1] to [8] and a light source.

[10] The display device according to [9], wherein the light source is a display device. Effect of the Invention

[0008] According to the present invention, a three-dimensional pattern can be expressed even with a small number of printed layers of the decorative sheet, and a molded product with excellent manufacturing efficiency can be provided by simplifying the color matching and registration work when printing the decorative sheet. [Brief description of the drawings]

[0009] [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 decorative sheet provided in the display device shown in FIG. [Diagram 3] FIG. 3 is a cross-sectional view that illustrates a molded product according to the second embodiment. [Figure 4]FIG. 4 is a cross-sectional view that illustrates a white pattern layer provided on the decorative sheet shown in FIG. [Diagram 5] FIG. 5 is a cross-sectional view that illustrates a decorative sheet according to a third embodiment. [Figure 6] FIG. 6 is a cross-sectional view that illustrates a decorative sheet according to a fourth embodiment. [Figure 7] FIG. [Figure 8] FIG. [Figure 9] FIG. [Figure 10] FIG. [Figure 11] FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, the embodiments of the present invention will be described in detail with reference to the drawings. In the following description, the same elements in the drawings are given the same reference numerals, and duplicated descriptions will be omitted. Note that the drawings are schematic, and for example, the relationship between thickness and planar dimensions, and the ratio of thicknesses of each layer are different from the actual ones. In addition, the embodiments shown below are examples of configurations for embodying the technical idea of ​​the present invention, and the technical idea of ​​the present invention is not limited to the materials, shapes, structures, etc. of the components described below.

[0011] [First embodiment] <Display devices, molded products> 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 of the decorative sheet of the display device shown in FIG. 1. As shown in FIG. 1, the display device 1 includes a molded product 7 and a light source 3. The molded product 7 includes a decorative sheet 2 and a resin molded body 6. The decorative sheet 2 is a sheet for expressing a pattern, and includes a base layer 4, a pattern-printed layer 5, and a transparent smoke-printed layer 30. The decorative sheet 2 is disposed on the surface of the resin molded body 6, and is provided in front of the light source 3 (between the viewer and the light source 3). The resin molded body 6 and the decorative sheet 2 are transparent to visible light. 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 resin molded body 6 and the decorative sheet 2, and when the power source of the light source 3 is OFF, the viewer can see the pattern expressed by the decorative sheet 2. The light source 3 is, for example, a display device.

[0012] <Resin molded body> The resin molded body has visible light transmittance. The resin constituting the resin molded body may be any resin having visible light transmittance, such as PET, PMMA, polyethylene, polypropylene, nylon, etc. The resin molded body may contain a thermoplastic resin having visible light transmittance, from the viewpoint of easily obtaining a molded product having a complex shape.

[0013] The resin molded body may further contain components other than the resin, such as additives such as a filler, an antistatic agent, an ultraviolet absorbing agent, a plasticizer, and a lubricant.

[0014] <Decorative sheet> The base material layer 4 is a base material having visible light transparency. The base material layer 4 contains, for example, a resin having visible light transparency. Examples of the resin having visible light transparency include PET, PMMA, polyethylene, polypropylene, nylon, polycarbonate (PC), ABS, and the like. The resin having visible light transparency may contain a thermoplastic resin having visible light transparency from the viewpoint of easily obtaining a molded product having a complex shape.

[0015] The thickness of the base material layer 4 may be 25 μm or more, 50 μm or more, or 75 μm or more, from the viewpoint of providing sufficient strength to the decorative sheet 2. The thickness of the base material layer 4 may be 500 μm or less, 350 μm or less, or 250 μm or less, from the viewpoint of preventing the decorative sheet 2 from becoming excessively thick. The decorative sheet 2 may have a surface protection layer provided on the surface side of the base material layer 4 (the side opposite to the picture-printed layer 5).

[0016] The picture-printed layer 5 is a layer that expresses the picture of the decorative sheet 2. The picture-printed layer 5 includes a first color pattern layer 10 provided on one surface 4a of the base layer 4, and a second color pattern layer 20 provided on the first color pattern layer 10.

[0017] 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 may be, for example, 0.5 parts by mass or more and 20 parts by mass or less with respect to 100 parts by mass of the first color binder 12.

[0018] Examples of the first color binder 12 include vinyl resins, acrylic resins, thermoplastic urethane resins, polyester resins, polycarbonate resins, etc. The thickness of the first color pattern layer 10 may be 1 to 10 μm. The first color pattern layer 10 may contain a curing agent from the viewpoint of improving the heat resistance of the first color pattern layer 10 and the adhesion of the first color pattern layer 10 to the base layer 4.

[0019] 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) that is transparent to visible light 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 base layer 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.

[0020] In the first embodiment, each of the first interference pigments 14a and 14b is a titanium dioxide-coated mica. The particle size of the titanium dioxide-coated mica may be, for example, 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 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.

[0021] 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 first interference pigments 14a and 14b are, for example, a red interference pigment (red pearl pigment) and a gold interference pigment (gold pearl pigment), respectively. In this case, the first interference lights 15a and 15b exhibit red and gold, respectively. The blending amounts of the first interference pigments 14a and 14b may be the same or different from each other.

[0022] 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 may be, for example, 0.5 parts by mass or more and 20 parts by mass or less with respect to 100 parts by mass of the second color binder 22.

[0023] Examples of the second color binder 22 include vinyl resins, acrylic resins, thermoplastic urethane resins, polyester resins, polycarbonate resins, etc. The thickness of the second color pattern layer 20 may be 1 to 10 μm. The second color pattern layer 20 may contain a curing agent from the viewpoint of improving 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.

[0024] 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 base layer 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.

[0025] In the first embodiment, the second interference pigment 24 is titanium dioxide-coated mica. The particle size of the titanium dioxide-coated mica may be, for example, 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.

[0026] 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 an interference pigment that generates a monochromatic second interference light 25 different from the mixed color exhibited by the first interference pigments 14a and 14b, and may be, for example, a green interference pigment (green pearl pigment). In this case, the second interference light 25 exhibits green color.

[0027] The transparent smoke printed layer 30 has a function of attenuating light from the front side of the viewpoint that passes through the decorative sheet 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 base material layer 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 may be 1 to 10 μm.

[0028] In the decorative sheet 2, the first interference light 15a, 15b generated by the first interference pigments 14a, 14b and the second interference light 25 generated by the second interference pigment 24 are additively mixed to produce a picture.

[0029] The total light transmittance of the decorative sheet 2 is, for example, 30 to 70%. The total light transmittance refers to a value measured using a spectrophotometer (for example, spectrophotometer UV-2100 manufactured by Shimadzu Corporation).

[0030] In the decorative sheet 2 according to the first embodiment described above, the first color pattern layer 10 contains the first interference pigments 14a, 14b, and the second color pattern layer 20 contains the second interference pigment 24, so that a three-dimensional pattern can be realized even with a small number of printed layers. Furthermore, in the decorative sheet 2, the first color pattern layer 10 is the only pattern layer among the first color pattern layer 10 and the second color pattern layer 20 that contains an interference pigment that generates different interference light, so that color matching and registration work during printing can be simplified. Therefore, according to the molded product 7 including the decorative sheet 2, a three-dimensional pattern can be expressed even with a small number of printed layers of the decorative sheet, and the manufacturing efficiency is excellent by simplifying the color matching and registration work when printing the decorative sheet.

[0031] In the first embodiment, the decorative sheet 2 of the molded product 7 includes a transparent smoke printed layer 30 provided on the second color pattern layer 20. This provides better color development between the first color pattern layer 10 and the second color pattern layer 20. Furthermore, since the transparent smoke printed layer 30 has transparency, the decrease in visibility of the image of the display device 1 is effectively suppressed.

[0032] In the first embodiment, each of the first interference pigments 14a, 14b and the second interference pigment 24 contains titanium dioxide-coated mica having a particle size of 25 μm or more and 60 μm or less. By containing titanium dioxide-coated mica having a particle size of 25 μm or more, the transparency and color development of the picture-printed layer 5 can be improved. By containing titanium dioxide-coated mica having a particle size of 60 μm or less, a decrease in the resolution and gradation of the picture-printed layer 5 can be suppressed.

[0033] In the first embodiment, the content of the plurality of first color pigment chips 13 may be 0.5 parts by mass or more and 20 parts by mass or less with respect to 100 parts by mass of the first color binder 12, and the content of the plurality of second color pigment chips 23 may be 0.5 parts by mass or more and 20 parts by mass or less with respect to 100 parts by mass of the second color binder. Since the content of the plurality of first color pigment chips 13 is within the range of 0.5 parts by mass or more, the pattern of the first color pattern layer 10 is well expressed. Since the content of the plurality of first color pigment chips 13 is within the range of 20 parts by mass or less, the coating property and transparency of the first color pattern layer 10 can be suppressed from decreasing. Similarly, since the content of the plurality of second color pigment chips 23 is within the range of 0.5 parts by mass or more and 20 parts by mass or less with respect to 100 parts by mass of the second color binder 22, the pattern of the second color pattern layer 20 is well expressed, while the coating property and transparency of the second color pattern layer 20 can be suppressed from decreasing.

[0034] In the first embodiment, the total light transmittance of the decorative sheet 2 may be 30 to 70%. If the total light transmittance is 30% or more, when the decorative sheet 2 is placed in front of a screen, the picture printed layer 5 becomes difficult to see due to the light of the image on the screen, and the image is seen more clearly. If the total light transmittance is 70% or less, the picture of the picture printed layer 5 can be prevented from appearing dark even if the screen is black.

[0035] In the first embodiment, an adhesive layer may be provided between the resin molded body 6 and the decorative sheet 2. This improves the adhesion between the resin molded body 6 and the decorative sheet 2.

[0036] In the first embodiment, the molded article may be, for example, an automobile part, an electrical appliance part, or a wall part, but is not limited to these uses.

[0037] In the first embodiment, the display device 1 includes a molded article 7 and a light source 3. According to the display device 1, when the light source 3 is not turned on, the pattern of the pattern-printed layer 5 of the molded article 7 is visible, and when the light source 3 is turned on, the transmitted light from the light source 3 (pattern display, image display, etc.) is visible.

[0038] In the first embodiment, the light source 3 may be a display device. In this case, when the display is not turned on, the pattern of the pattern-printed layer 5 of the molded product 7 is visible, and when the display is turned on, the transmitted light from the display (pattern display, video display, etc.) is visible.

[0039] <Method of manufacturing molded products> The molded article is molded into a three-dimensional shape by, for example, injection molding. That is, the molded article may be an injection molded article. By using an injection molded article, the adhesion between the resin molded body and the decorative sheet is excellent. Specifically, the molded article may be a film insert molded article or an in-mold molded article.

[0040] When the molded product is a film insert molded product, the molded product can be obtained by the following procedure. That is, first, the decorative sheet is heated to soften it, and then molded using a mold. Next, the decorative sheet is trimmed as necessary, and then inserted into a molding die. The resin that constitutes the resin molded body is inserted into the molding die with the decorative sheet inserted therein, and injection molding is performed, followed by demolding to obtain a molded product.

[0041] When the molded product is an in-mold molded product, the molded product can be obtained by the following procedure. That is, first, a decorative sheet is fed into a mold, and after the decorative sheet is fixed, the decorative sheet is made to conform to the shape of the mold by suction. Next, after closing the mold, the resin that constitutes the resin molded body is inserted and injection molded. The mold is opened to obtain the molded product.

[0042] The molded product is formed into a three-dimensional shape by, for example, vacuum forming and / or pressure forming. By forming the molded product by vacuum forming and / or pressure forming, the time required for removing burrs from the decorative sheet is reduced when producing the molded product, and the manufacturing efficiency is excellent. Specifically, the molded product may be a TOM (Three dimension Overlay Method) molded product.

[0043] When the molded product is a TOM molded product, the molded product can be obtained by the following procedure. That is, first, a resin molded product is produced. The produced resin molded product is placed in the lower chamber of a TOM molding device. A decorative sheet is placed between the lower and upper chambers of the device and is sealed, and then the decorative sheet is heated and softened. Next, the lower chamber of the device is put into a vacuum state, and the upper chamber is pressurized to push up the resin molded product. The decorative sheet is transferred to match the shape of the resin molded product, and a molded product can be obtained.

[0044] [Second embodiment] Hereinafter, a molded product 7A according to the second embodiment will be described with reference to Figures 3 and 4. 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 appropriately in the second embodiment to the extent technically possible.

[0045] Fig. 3 is a cross-sectional view showing a molded product according to the second embodiment. Fig. 4 is a cross-sectional view showing a white pattern layer of the decorative sheet shown in Fig. 3. The decorative sheet 2A includes a base layer 4 and a picture print layer 5. The decorative sheet 2A further includes a white pattern layer 40 provided on the second color pattern layer 20.

[0046] 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, and may be a rectangle, a polygon, or other shape. 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. The content of the plurality of silver pigment chips 43 may be, for example, 0.5 parts by mass or more and 20 parts by mass or less with respect to 100 parts by mass of the silver binder 42.

[0047] Examples of the silver binder 42 include vinyl resins, acrylic resins, thermoplastic urethane resins, polyester resins, polycarbonate resins, etc. The white pattern layer 40 may have a thickness of 1 to 10 μm. The white pattern layer 40 may contain a curing agent from the viewpoint of improving 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.

[0048] The above-described configuration of the molded product 7A achieves the same effects as those of the first embodiment. Furthermore, in the second embodiment, the decorative sheet 2A of the molded product 7A is provided on the second color pattern layer 20, and is provided with a white pattern layer 40 composed of a plurality of silver dots 41. 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. This allows the first color pattern layer 10 and the second color pattern layer 20 to have excellent color development, and the pattern printed layer 5 to have a pattern that gives a whitish impression.

[0049] [Third embodiment] Hereinafter, a molded product 7B according to the third embodiment will be described with reference to Fig. 5. 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, the descriptions of the first and second embodiments may be used appropriately in the third embodiment to the extent technically possible.

[0050] 5 is a cross-sectional view showing a molded product according to the third embodiment. The decorative sheet 2B of the molded product 7B includes a base layer 4 and a picture-printed layer 5. That is, the decorative sheet 2B does not include a permeable smoke-printed layer 30 and a white pattern layer 40. Even with the configuration of the decorative sheet 2B described above, the same effects as those of the first embodiment can be achieved.

[0051] [Fourth embodiment] Hereinafter, a molded product 7C according to the fourth embodiment will be described with reference to Fig. 6. 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 appropriately in the fourth embodiment to the extent technically possible.

[0052] 6 is a cross-sectional view showing a molded product according to the fourth embodiment. The decorative sheet 2C of the molded product 7C includes a base layer 4, a picture print layer 5, a white pattern layer 40, and a transparent smoke print layer 30. The white pattern layer 40 is provided on the second color pattern layer 20, and the transparent smoke print layer 30 is provided on the white pattern layer 40. Even with the configuration of the decorative sheet 2C described above, the same effects as those of the first, second, and third embodiments can be achieved.

[0053] The display device and molded product 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 chip is a first interference pigment of two colors, but the first color pigment chip may be a first interference pigment of three or more colors.

[0054] [Fifth embodiment] The decorative sheet described above may be capable of three-dimensional molding by forming. The molded product may not include a resin molded body and may be a molded product composed only of a decorative sheet. That is, another embodiment of the present invention is a molded product of the decorative sheet described above by forming, specifically, a molded product formed only from a decorative sheet, in which the decorative sheet has visible light transparency, the decorative sheet includes a base layer and a picture print layer, the picture print layer includes a first color pattern layer provided on one surface of the base layer and composed of a plurality of first color dots, and a second color pattern layer provided on the first color pattern layer and composed of a plurality of second color dots, each of the plurality of first color dots being composed of a first color binder and a plurality of dots dispersed inside the first color binder. a first color pigment chip, each of the plurality of second color dots including a second color binder and a plurality of second color pigment chips dispersed within the second color binder, one of the plurality of first color pigment chips and the plurality of second color pigment chips being a first interference pigment of a plurality of colors that respectively generate first interference lights different from each other, and the other of the plurality of first color pigment chips and the plurality of second color pigment chips being a second interference pigment that generates a monochromatic second interference light different from the mixed color exhibited by the plurality of first interference pigments, and additively mixing the plurality of first interference lights and the second interference light.

[0055] As far as technically possible, the foamed product may be applied to the fourth embodiment as described above in the first, second and third embodiments.

[0056] The formed product can be obtained by subjecting the decorative sheet to vacuum forming, pressure forming, or press forming. As the specific forming method, a known method can be applied.

[0057] An application example of the above-mentioned technology will be described with reference to Figs. 7 to 9. Fig. 7 is a front view showing an in-vehicle device 500 including a display device 1. An in-vehicle console is exemplified as the in-vehicle device 500. Fig. 8 is an exploded perspective view of the in-vehicle device 500. Fig. 9 is a cross-sectional view of the in-vehicle device 500. The in-vehicle device 500 is an operation panel installed inside an automobile. As shown in Fig. 7, the in-vehicle device 500 includes an image transmission portion 501A, an image transmission portion 501B, and a handle 502 on a surface 500a. The image transmission portions 501A and 501B display an image on the surface 500a when the display device is turned ON, and display a pattern on the surface 500a when the display device is turned OFF.

[0058] As shown in FIG. 8 and FIG. 9, the in-vehicle device 500 includes, in order from the surface 500a, a decorative sheet 2, a sheet tape 503, an acrylic plate 504, an adhesive layer 508, a light source 3 which is a display device, and a housing 506. The sheet tape 503 bonds the decorative sheet 2 and the acrylic plate 504. The adhesive layer 508 is made of, for example, OCA, and bonds the acrylic plate 504 and the light source 3. The housing 506 supports each component. As shown in FIG. 8, the housing 506 has housings 507A and 507B at positions corresponding to the image transmission portions 501A and 501B. The housing 507A houses the light source 3 and the acrylic plate 504 corresponding to the image transmission portion 501A. The housing 507B houses the light source 3 and the acrylic plate 504 corresponding to the image transmission portion 501B. The decorative sheet 2 is bonded to the surface of the housing 506 so as to conceal the light sources 3 of the housing portions 507A and 507B and the entire surface of the housing 506.

[0059] Additionally, the above-mentioned technology may be applied to an in-vehicle device 510 shown in Fig. 10. The in-vehicle device 510 is provided on the back side of a seat 511 in a vehicle. The in-vehicle device 510 houses a light source 3, which is a display device, inside, and has a decorative sheet 2 that covers the light source 3. The in-vehicle device 51 has an image transmission section 512 on the back surface 510a at eye height of a passenger in the rear seat. The image transmission section 512 displays an image on the surface 510a when the display device is turned ON, and displays a pattern on the surface 510a when the display device is turned OFF.

[0060] In addition, the above-mentioned technology may be applied to an in-vehicle device 520 shown in FIG. 11. The in-vehicle device 520 is provided on a door handle 521 in a vehicle. The in-vehicle device 520 houses a light source 3, which is a display device, inside, and has a decorative sheet 2 that covers the light source 3. The in-vehicle device 520 has an image transmission part 522 on an upper surface 520a of the door handle part 521. The image transmission part 522 displays an image on the surface 520a when the display device is turned ON, and displays a pattern on the surface 520a when the display device is turned OFF. The in-vehicle device 520 is configured as a door switch. When the in-vehicle device 520 opens or closes the door, an operation screen related to the opening and closing operation of the door is displayed on the image transmission part 522. Otherwise, the in-vehicle device 520 turns off the display device and conceals the display device. [Explanation of symbols]

[0061] 1...display device, 2, 2A, 2B, 2C...decorative sheet, 3...light source, 4...base material layer, 5...picture printed layer, 6...resin molded body, 7, 7A, 7B, 7C...molded article, 10...first color pattern layer, 11...first color dot, 12...first color binder, 13...first color pigment chip, 14a, 14b...first interference pigment, 15a, 15b...first interference light, 20...second color pattern layer, 21...second color dot, 22...second color binder, 23...second color pigment chip, 24...second interference pigment, 25...second interference light, 30...transmissive smoke printed layer, 40...white pattern layer, 41...silver dot, 42...silver binder, 43...silver pigment chip.

Claims

1. A resin molded body and a decorative sheet disposed on a surface of the resin molded body, The resin molding and the decorative sheet have visible light transmittance, The decorative sheet comprises a base layer and a pattern printed layer, The picture-printed layer is provided on one surface of the base layer, and includes a first color pattern layer including a plurality of first color dots; a second color pattern layer provided on the first color pattern layer and configured by a plurality of second color dots; Each of the first color dots includes a first color binder and a plurality of first color pigment chips dispersed within the first color binder; Each of the plurality of second color dots includes a second color binder and a plurality of second color pigment chips dispersed within the second color binder; one of the plurality of first color pigment chips and the plurality of second color pigment chips is a first interference pigment of a plurality of colors that respectively generate first interference light different from each other; the other of the plurality of first color pigment chips and the plurality of second color pigment chips is a second interference pigment that generates a second interference light of a single color different from the mixed color exhibited by the plurality of first interference pigments; A molded product that additively mixes the plurality of first interference lights and the second interference light.

2. The molded article according to claim 1 , which is an injection molded article.

3. The molded article of claim 1 which is a TOM molded article.

4. A molded product formed only from a decorative sheet, The decorative sheet has visible light transmittance, The decorative sheet comprises a base layer and a pattern printed layer, The picture-printed layer is provided on one surface of the base layer, and includes a first color pattern layer including a plurality of first color dots; a second color pattern layer provided on the first color pattern layer and configured by a plurality of second color dots; Each of the first color dots includes a first color binder and a plurality of first color pigment chips dispersed within the first color binder; Each of the plurality of second color dots includes a second color binder and a plurality of second color pigment chips dispersed within the second color binder; one of the plurality of first color pigment chips and the plurality of second color pigment chips is a first interference pigment of a plurality of colors that respectively generate first interference light different from each other; the other of the plurality of first color pigment chips and the plurality of second color pigment chips is a second interference pigment that generates a second interference light of a single color different from the mixed color exhibited by the plurality of first interference pigments; A molded product that additively mixes the plurality of first interference lights and the second interference light.

5. The decorative sheet further includes a white pattern layer formed on the second color pattern layer and composed of a plurality of silver dots, The molded product according to any one of claims 1 to 4, wherein each of the plurality of silver dots comprises a silver binder and a plurality of silver pigment chips dispersed within the silver binder.

6. The molded product according to any one of claims 1 to 4, wherein the decorative sheet further comprises a transparent smoke printed layer provided on the outermost surface opposite the base layer with respect to the picture printed layer.

7. The molded article according to any one of claims 1 to 4, wherein each of the first interference pigment and the second interference pigment contains titanium dioxide-coated mica having a particle size of 25 μm or more and 60 μm or less.

8. a content of the plurality of first color pigment chips is 0.5 parts by mass or more and 20 parts by mass or less with respect to 100 parts by mass of the first color binder, The molded product according to any one of claims 1 to 4, wherein the content of the plurality of second color pigment chips is 0.5 parts by mass or more and 20 parts by mass or less with respect to 100 parts by mass of the second color binder.

9. A display device comprising the molded article according to any one of claims 1 to 4 and a light source.

10. The display device of claim 9 , wherein the light source is a display device.

Images