Molded article, display device, injection molding method, injection molded article, and liquid crystal panel

Abstract

The pattern printing layer is provided with: a first color pattern layer which is provided on one surface of the base material layer and which is composed of a plurality of first color dots; and a second color pattern layer provided on the first color pattern layer and comprising a plurality of second color dots, each of the plurality of first color dots comprising a first color binder and a plurality of first color pigment flakes dispersed inside the first color binder, each of the plurality of second color dots includes a binder for a second color and a plurality of second color pigment flakes dispersed inside the binder for the second color, and one of the plurality of first color pigment flakes and the plurality of second color pigment flakes is a first interference pigment of a plurality of colors that generates first interference light different from each other. The other of the plurality of first color pigment sheets and the plurality of second color pigment sheets is a second interference pigment that generates a monochromatic second interference light that differs from the mixed color of the plurality of first interference pigments, and the plurality of first interference light and the second interference light are color-mixed.

Description

Technical Field

[0001] This disclosure relates to molded articles, display devices, injection molding methods, injection molded articles, and liquid crystal panels. Background Technology

[0002] Conventionally, decorative panels used for walls and other surfaces have been known to include a substrate and a printed layer on the surface of the substrate, the printed layer having patterns such as wood grain or abstract designs. These patterns are always visually recognizable on a wall surface where the decorative panel is installed. Furthermore, it is required that the visually recognizable pattern changes depending on whether a light source is used on the back side of the decorative panel.

[0003] For example, Patent Document 1 discloses a printed material with a display device having a light source under a decorative sheet. When the light source is off, the pattern of reflected light based on a printed layer composed of RGB interference pigments can be visually recognized. On the other hand, when the light source is on, the pattern of transmitted light based on a CMY printed layer can be visually recognized (see Patent Document 1). Figure 11 Furthermore, Patent Document 2 discloses a decorative sheet having two patterns using interference pigments, wherein the patterns can be visually identified when the image of the back side is not displayed, and the image can be visually identified when the image of the back side is displayed (see Patent Document 2). Figure 1 , 2 ).

[0004] Existing technical documents Patent documents Patent Document 1: Japanese Patent No. 5725581 Patent Document 2: Japanese Patent No. 6839319 Patent Document 3: Japanese Patent Application Publication No. 2021-178431 Patent Document 4: Japanese Patent Application Publication No. 2019-66842 Summary of the Invention

[0005] The problem that the invention aims to solve Patent Document 1 describes a printed material comprising a first color pattern layer, a second color pattern layer, and a third color pattern layer, wherein each pattern layer contains a pigment chip selected from red interference pigment, green interference pigment, and blue interference pigment. In this printed material, the number of pattern layers is increased to achieve more vibrant colors than conventional printing. Patent Document 2 describes a decorative sheet comprising: a first pattern layer containing multiple interference pigments in a first color mixture; and a second pattern layer containing multiple interference pigments in a second color mixture different from the first color mixture. In this decorative sheet, since both the first and second pattern layers contain multiple interference pigments, the color mixing and registration operations during printing may become more complex.

[0006] This disclosure is intended to solve the aforementioned problems and aims to provide a molded article that can display a three-dimensional pattern even with a small number of printing layers of decorative sheets, and to achieve excellent manufacturing efficiency by simplifying the color matching and registration operations when printing decorative sheets.

[0007] Furthermore, the purpose of this disclosure is to provide an injection molding method, an injection molded article, and a display device that can suppress tonal variations in patterns related to the decoration of light-transmitting decorative insert films.

[0008] Furthermore, the present disclosure aims to provide a liquid crystal panel and a display device that can suppress external light reflection at the display section when the display device is in use, suppress the decrease in gloss outside the display section, and hide the display when the display device is turned off.

[0009] Solution for solving the problem The molded article disclosed herein comprises a resin molded body and a decorative sheet disposed on the surface of the resin molded body. The resin molded body and the decorative sheet are visible light transmissive. The decorative sheet comprises a substrate layer and a pattern printing layer. The pattern printing layer comprises: a first color pattern layer disposed on one surface of the substrate layer and composed of a plurality of first color dots; and a second color pattern layer disposed on the first color pattern layer and composed of a plurality of second color dots. Each of the plurality of first color dots includes a first color binder and a plurality of first color pigment flakes 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 flakes dispersed within the second color binder. Either of the plurality of first color pigment flakes and the plurality of second color pigment flakes is a first interference pigment that generates multiple colors of first interference light that are different from each other. The other of the plurality of first color pigment flakes and the plurality of second color pigment flakes is a second interference pigment that generates a monochromatic second interference light that is different from the mixed color presented by the plurality of first interference pigments. The plurality of first interference lights and second interference lights are additively mixed.

[0010] The display device disclosed herein includes a light source.

[0011] In the injection molding method disclosed herein, a light-transmitting decorative insert film with a visible light transmittance of 10% or more and 80% or less is prepared by decorating the film, a resin with a visible light transmittance of 40% or less is prepared by adding pigment to a transparent resin, and an injection-molded article is formed by inserting the light-transmitting decorative insert film into a mold and injecting the resin into the mold.

[0012] The injection-molded article disclosed herein is formed by the injection molding method described above.

[0013] The display device disclosed herein includes the aforementioned injection-molded article and display device.

[0014] The purpose of this disclosure is to provide a liquid crystal panel and a display device that can suppress external light reflection at the display section when the display device is in use, suppress the decrease in gloss outside the display section, and hide the display when the display device is turned off.

[0015] The liquid crystal panel disclosed herein is a liquid crystal panel having at least a light-transmitting substrate and a pattern printing layer. The pattern printing layer is disposed on one side of the light-transmitting substrate and includes a pattern layer composed of multiple dots. Each of the multiple dots includes an adhesive and multiple pigment flakes dispersed within the adhesive. The multiple pigment flakes are interference pigments. The other side of the light-transmitting substrate opposite to the pattern printing layer has: a light-transmitting display portion; and an outer peripheral portion on the outer peripheral side of the display portion. An anti-glare treatment portion is formed in the display portion, and a resin layer subjected to molding processing using an ultraviolet-curable resin is formed in the outer peripheral portion.

[0016] In one respect, the display device disclosed herein includes the aforementioned liquid crystal panel and display device.

[0017] Invention Effects According to this disclosure, a molded article can be provided that can display a three-dimensional pattern even with a small number of printing layers of decorative sheets, and the manufacturing efficiency is excellent by simplifying the color matching and plate registration operations when printing decorative sheets.

[0018] Furthermore, according to this disclosure, an injection molding method, an injection molded article, and a display device can be provided that can suppress color variations in patterns related to the decoration of light-transmitting decorative insert films.

[0019] Furthermore, according to this disclosure, a liquid crystal panel and a display device can be provided that can suppress external light reflection at the display section when the display device is in use, suppress the decrease in gloss outside the display section, and hide the display when the display device is turned off. Attached Figure Description

[0020] Figure 1 This is a cross-sectional view of a display device schematically representing example 1-1.

[0021] Figure 2 It is a schematic representation Figure 1 The diagram shows a cross-sectional view of the printed pattern layer of the display device.

[0022] Figure 3 This is a schematic cross-sectional view of a printed material representing examples 1-2.

[0023] Figure 4 It is a schematic representation Figure 3 A cross-sectional view of the white patterned layer of the printed material shown.

[0024] Figure 5 This is a schematic cross-sectional view of the printed material representing examples 1-3.

[0025] Figure 6 This is a schematic cross-sectional view of the printed material representing examples 1-4.

[0026] Figure 7 This is a cross-sectional view schematically showing the pattern printing layer of the display device in example 2-1.

[0027] Figure 8 This is a diagram showing the composition of the printed materials in Experiment Examples 1-3.

[0028] Figure 9 This is a cross-sectional view schematically showing the pattern printing layer of the display device in example 3-1.

[0029] Figure 10 (a) is a schematic diagram showing the combination of colors in the printed layers of the pattern. Figure 10 (b) is a schematic diagram showing the combination of colors of the pattern printing layer in the embodiment used for comparison.

[0030] Figure 11 This is a schematic diagram illustrating a specific example of the combination of colors in the printed layers of a pattern.

[0031] Figure 12 This is a cross-sectional view schematically showing the pattern printing layer of the display device in example 4-1.

[0032] Figure 13 (a) is a schematic diagram showing the combination of colors in the printed layers of the pattern. Figure 13 (b) is a schematic diagram showing the combination of colors of the pattern printing layer in the embodiment used for comparison.

[0033] Figure 14 This is a schematic diagram illustrating a specific example of the combination of colors in the printed layers of a pattern.

[0034] Figure 15 (a) is a diagram showing the light source covered by the printed material as viewed from the surface when the power supply to light source 3 is disconnected. Figure 15 (b) is a diagram of the light source covered by the printed material as viewed from the surface when the power of the light source 3 is turned on.

[0035] Figure 16 This is a schematic side view of a display device equipped with the liquid crystal panel of this embodiment.

[0036] Figure 17 This is a front view of a display device equipped with the liquid crystal panel of this embodiment.

[0037] Figure 18 It is an enlarged cross-sectional view showing the structure near the surface of the translucent substrate used for the panel.

[0038] Figure 19 This is a schematic side view of a display device having a modified liquid crystal panel.

[0039] Figure 20 This is a schematic cross-sectional view of an injection-molded article illustrating an embodiment of the present invention.

[0040] Figure 21 These are schematic cross-sectional views and top views illustrating embodiments of the present invention.

[0041] Figure 22 This is a schematic cross-sectional view of a light-transmitting decorative insert film.

[0042] Figure 23 This is a cross-sectional view that schematically represents an example of the specific structure of a pattern layer.

[0043] Figure 24 This is a process diagram of the injection molding method according to an embodiment of the present invention.

[0044] Figure 25 This is a schematic diagram illustrating the steps of an injection molding process.

[0045] Figure 26 This is a schematic cross-sectional view of a comparative example injection-molded article.

[0046] Figure 27 These are schematic cross-sectional views and top views of a display device for comparative examples.

[0047] Figure 28 This is a schematic cross-sectional view of the display device according to the third-1st embodiment.

[0048] Figure 29 This is a schematic cross-sectional view of the molded article according to the third-second embodiment.

[0049] Figure 30 This is a schematic cross-sectional view of the decorative piece according to the third-third embodiment.

[0050] Figure 31 This is a schematic cross-sectional view of the decorative sheet according to embodiments 3 and 4.

[0051] Figure 32 This is a diagram representing in-vehicle equipment.

[0052] Figure 33 It is a 3D view of the vehicle-mounted equipment.

[0053] Figure 34 This is a cross-sectional unfolded view of the vehicle-mounted equipment.

[0054] Figure 35 This is a diagram representing in-vehicle equipment.

[0055] Figure 36 This is a diagram representing in-vehicle equipment. Detailed Implementation

[0056] [First Public Announcement] Conventionally, liquid crystal panels are known to have a light-transmitting display portion on one side of a light-transmitting substrate, and an outer peripheral portion on the outer periphery of the display portion. An anti-glare treatment portion is formed on the display portion, and a resin layer formed on the outer peripheral portion using a UV-curable resin molding process is also present (Japanese Patent Application Laid-Open No. 2019-66842). Black printing is performed on the other side of the light-transmitting substrate at a location corresponding to the outer peripheral portion.

[0057] In liquid crystal panels, for example, when used in automotive applications, it is required to suppress external light reflection during display and to suppress the decrease in gloss outside the display area. On the other hand, it is required to hide the display device in a way that it cannot be seen when the display device is turned off.

[0058] The purpose of this disclosure is to provide a liquid crystal panel and a display device that can suppress external light reflection at the display section when the display device is in use, suppress the decrease in gloss outside the display section, and hide the display when the display device is turned off.

[0059] [1] In one aspect, the liquid crystal panel disclosed herein is a liquid crystal panel having at least a light-transmitting substrate and a pattern printing layer. The pattern printing layer is disposed on one side of the light-transmitting substrate and includes a pattern layer composed of a plurality of dots. Each of the plurality of dots includes an adhesive and a plurality of pigment flakes dispersed within the adhesive. The plurality of pigment flakes are interference pigments. The other side of the light-transmitting substrate opposite to the pattern printing layer has: a display portion having light transmittance; and an outer peripheral portion on the outer peripheral side of the display portion. A processing portion for which anti-glare treatment is performed is formed in the display portion, and a resin layer for which molding processing using an ultraviolet-curable resin is performed is formed in the outer peripheral portion.

[0060] The translucent substrate, on the side opposite to the pattern printing layer, has: a light-transmitting display section; and an outer peripheral portion on the outer periphery of the display section. An anti-glare treatment section is formed on the display section, and a resin layer formed on the outer peripheral portion using a UV-curable resin through molding is formed. Therefore, because the anti-glare treatment section is formed on the display section, external light reflection at the display section can be suppressed, preventing reflections. Furthermore, because the UV-curable resin layer is formed on the outer peripheral portion, a decrease in gloss can be suppressed on the outer peripheral portion. The pattern printing layer is provided on one side of the translucent substrate and includes a pattern layer composed of multiple dots. Each dot contains an adhesive and multiple pigment flakes dispersed within the adhesive; the pigment flakes are interference pigments. In this case, the pattern printing layer can hide the display device when the display is off. Thus, the image of the display device is displayed on the display section. On the other hand, the pattern printing layer can hide the presence of the display device by means of the pattern when the display device is off. Thus, the pattern of the pattern printing layer is displayed on the display section. In summary, the liquid crystal panel can suppress external light reflection at the display area when the display device is displaying, suppress the decrease in gloss outside the display area, and hide the display device when the display device is turned off.

[0061] [2] In the liquid crystal panel described in [1] above, the anti-glare treatment may also be performed using shot peening. This further suppresses external light reflection at the display section where the treatment unit is located, and prevents reflections, etc.

[0062] [3] Alternatively, the liquid crystal panel of [1] or [2] above may also have a white pattern layer, which is disposed on the pattern printing layer and is composed of multiple silver dots, each of which contains a silver binder and multiple silver pigment flakes dispersed within the silver binder. In this case, the color rendering of the first color pattern layer and the second color pattern layer is excellent, and the pattern printing layer can have a pattern that gives a white impression.

[0063] [4] In any of the liquid crystal panels described in [1] to [3] above, a transmissive smoke-colored printing layer may also be provided on the outermost surface opposite to the light-transmitting substrate, opposite to the pattern printing layer. In this case, the color rendering properties of the first color pattern layer and the second color pattern layer are superior. Moreover, since the transmissive smoke-colored printing layer is transmissive, the decrease in visual recognizability of the image on the display device can be effectively suppressed.

[0064] [5] In any of the above [1] to [4] liquid crystal panels, the pattern layer may include: a first color pattern layer disposed on one side of a light-transmitting substrate and composed of a plurality of first color dots; and a second color pattern layer disposed on the first color pattern layer and composed of a plurality of second color dots, each of the first color dots comprising a first color binder and a plurality of first color pigment flakes dispersed within the first color binder, each of the second color dots comprising a second color binder and a plurality of second color pigment flakes dispersed within the second color binder, either of the first color pigment flakes or the second color pigment flakes comprising multiple colors of interference pigments that are different from each other when interfering light is reflected, and the other of the first color pigment flakes or the second color pigment flakes comprising an interference pigment that is different from the mixed color of the multiple colors of interference pigments contained in either of the first color pigment flakes, and the interference light is mixed additively. Since either the first-color pattern layer or the second-color pattern layer contains interference pigments of multiple colors that generate mutually different interference light, a three-dimensional pattern can be achieved even with a relatively small number of printing layers. Furthermore, because the pattern layer containing interference pigments that generate multiple interference lights can be either the first-color pattern layer or the second-color pattern layer, color mixing and registration operations during printing can be simplified. Therefore, according to this printed material, a three-dimensional pattern can be represented even with a relatively small number of printing layers, and color mixing and registration operations during printing can be simplified.

[0065] [6] In any of the above [1] to [4] liquid crystal panels, the pattern layer may include: a first color pattern layer disposed on one side of a light-transmitting substrate, composed of a plurality of first color dots; and a second color pattern layer disposed on the first color pattern layer, composed of a plurality of second color dots, each of the first color dots comprising a first color binder and a plurality of first color pigment flakes dispersed within the first color binder, each of the second color dots comprising a second color binder and a plurality of second color pigment flakes dispersed within the second color binder, wherein the plurality of first color pigment flakes are first interference pigments that generate monochromatic first interference light, and the plurality of second color pigment flakes are second interference pigments that generate monochromatic second interference light with a color different from that presented by the first interference pigments, and the first interference light and the second interference light are mixed additively. For example, for patterns that can be represented with fewer colors, by limiting the interference pigments contained in the first color pattern layer and the second color pattern layer to monochromatic, the pattern can be represented using only the intensity of the monochromatic color. In this way, color matching and plate-registration operations during printing can be simplified. Therefore, this printed material simplifies color matching and plate registration during printing.

[0066] [7] In any of the above [1] to [4] liquid crystal panels, the pattern layer may include: a first color pattern layer disposed on one side of a light-transmitting substrate, composed of a plurality of first color dots; and a second color pattern layer disposed on the first color pattern layer, composed of a plurality of second color dots, each of the first color dots comprising a first color binder and a plurality of first color pigment flakes dispersed within the first color binder, each of the second color dots comprising a second color binder and a plurality of second color pigment flakes dispersed within the second color binder, wherein either the plurality of first color pigment flakes or the plurality of second color pigment flakes is a first interference pigment of multiple colors that generates first interference light of different colors, and the other of the plurality of first color pigment flakes or the plurality of second color pigment flakes is a second interference pigment that generates second interference light of a monochromatic color that is the same as any one of the plurality of first interference pigments, and the plurality of first interference lights and the second interference lights are mixed additively. Since either the first color pattern layer or the second color pattern layer comprises interference pigments of multiple colors that generate interference light of different colors, a three-dimensional pattern representation can be achieved even with a smaller number of printing layers. Furthermore, in this printed material, since the pattern layer containing interference pigments that generate multiple interference lights can be either a first color pattern layer or a second color pattern layer, the color matching and registration operations during printing can be simplified. On the other hand, the other of the first and second color pattern layers contains a second interference pigment that generates a monochromatic second interference light of the same color as any of the multiple first interference pigments. For example, for patterns that can be represented with fewer colors, by limiting the second interference pigment to a monochromatic color that is the same as the first interference pigment, the intensity of the monochromatic color can be used to represent the pattern. In addition, when it is desired to emphasize a certain color, it is easier to adjust that color by using both the first and second color pattern layers compared to adjusting it using only one color pattern layer. Furthermore, if interference pigment is over-placed in a single color pattern layer, the strength of the coating will decrease, but by using two color pattern layers, the decrease in strength can be suppressed. In summary, the color matching and registration operations during printing can be simplified.

[0067] [8] In one aspect, the display device of the present disclosure includes the liquid crystal panel and display device described in [1] to [7] above.

[0068] In the display device described above [8], the same function / effect as that of the liquid crystal panel described above [1] can be obtained.

[0069] According to the present invention, a liquid crystal panel and a display device can be provided that can suppress external light reflection at the display section when the display device is displaying, suppress the decrease in gloss outside the display section, and hide the display when the display device is turned off.

[0070] Hereinafter, specific examples of liquid crystal panels and display devices according to embodiments of the present disclosure will be described with reference to the accompanying drawings. It should be noted that the present disclosure is not limited to these examples, but rather to the claims, which are intended to include all modifications within the meaning and scope equivalent to the claims. In the following description, the same reference numerals are used to denote the same elements in the description of the drawings, and repeated descriptions are omitted.

[0071] [Regarding printed materials] First, refer to Figures 1 to 15 An example of the printed material used in this embodiment will be described. However, refer to... Figures 1 to 15 The description is merely an example of what kind of printed matter can be used in this disclosure. Therefore, with reference to Figures 1 to 15 The layer structures of printed materials illustrated in the description are not limited to the layer structures of printed materials used in this disclosure. It should be noted that, for the purpose of describing printed materials, [the following is an explanation of the layer structures used in this disclosure]. Figure 1 The image shows a printed material embedded in a display device. In this specification, when the printed material is formed by printing halftone ink, regarding the layer structure of the printed material, a portion of one layer and a portion of another layer may be located at the same position in the thickness direction, may interpenetrate each other, and may include a structure such that, when viewed in a top view, the pattern forming one layer overlaps the pattern forming another layer in some parts, but not in others. It should be noted that each layer in the layer structure of the printed material can also be considered as a superposition of printed patterns.

[0072] [Example 1-1] Figure 1 This is a cross-sectional view of a display device schematically representing example 1-1. Figure 2 It is a schematic representation Figure 1 The diagram shows a cross-sectional view of the printed pattern layer of the display device. (Example) Figure 1 As shown, the display device 1 includes a printed material 2 and a light source 3. The printed material 2 is a sheet used to display a pattern, and includes a light-transmitting substrate 4, a pattern printing layer 5, and a transmissive smoke printing layer 30. The printed material 2 is positioned in front of the light source 3 (between the viewer and the light source 3). The printed material 2 is fully transmissive. Therefore, when the power to the light source 3 is turned on, the viewer can visually recognize the light transmitted from the light source 3 through the printed material 2, and when the power to the light source 3 is turned off, the viewer can visually recognize the pattern displayed on the printed material 2. The light source 3 is, for example, a display device.

[0073] The light-transmitting substrate 4 is a substrate that transmits visible light. The light-transmitting substrate 4 is, for example, made of a transparent resin. Examples of transparent resins include PET (polyethylene terephthalate), PMMA (polymethyl methacrylate), polycarbonate, polyethylene, polypropylene, and nylon. The light-transmitting substrate 4 can also be a glass substrate. The thickness of the light-transmitting substrate 4 is, for example, 25 μm to 250 μm, but if printable, a substrate with a thickness less than or greater than this range can also be used. In the case of a glass substrate, for example, it is a few mm to about 10 mm. It should be noted that, if necessary, a surface protective layer can also be provided on the surface side of the light-transmitting substrate 4 (the side opposite to the pattern printing layer 5).

[0074] The pattern printing layer 5 is a layer that displays the pattern of the printed matter 2. The pattern printing layer 5 includes a first color pattern layer 10 disposed on one side 4a of the light-transmitting substrate 4 and a second color pattern layer 20 disposed on the first color pattern layer 10.

[0075] The first color pattern layer 10 can be applied to surface 4a, for example, by screen printing, inkjet printing, gravure printing, or offset printing. Figure 2 As shown, the first color pattern layer 10 is composed of a plurality of first color dots 11. Here, "dot" refers to a point that constitutes an element of a printed image, and its shape is not limited to a circle; it can also be a rectangle, a polygon, or other shapes. Each of the plurality of first color dots 11 contains a first color binder 12 and a plurality of first color pigment flakes 13 dispersed within the first color binder 12. When the first color binder 12 is set to 100 parts by weight, the content of the plurality of first color pigment flakes 13 is, for example, in the range of 0.5 parts by weight or more and 20 parts by weight or less.

[0076] Examples of adhesives 12 used for the first color include vinyl-based resins, acrylic-based resins, thermoplastic urethane-based resins, polyester-based resins, and polycarbonate-based resins. The thickness of the first color pattern layer 10 is, for example, 1 μm to 10 μm. It should be noted that the first color pattern layer 10 may also contain a curing agent. In this case, the heat resistance of the first color pattern layer 10 and its adhesion to the light-transmitting substrate 4 can be improved. Furthermore, the first color pattern layer 10 may also contain a weather-resistant agent. Known ultraviolet absorbers and light stabilizers can be used as weather-resistant agents.

[0077] In the example 1-1, the multiple first-color pigment sheets 13 are first interference pigments 14a and 14b of various colors that generate different interference light. Each of the first interference pigments 14a and 14b consists of a thin sheet (not shown) that is transmissive to visible light and a metal oxide film (not shown) covering the sheet. In incident light incident from the translucent substrate 4 onto the first-color pattern layer 10, the light reflected from the surface of the metal oxide film interferes with the light that passes through the metal oxide film and is reflected from the surface of the sheet, generating interference light. By adjusting the thickness and refractive index of the metal oxide film, interference light with a desired wavelength can be generated.

[0078] In the example of 1-1, the first interference pigments 14a and 14b are each titanium dioxide-coated mica. The particle size range of this titanium dioxide-coated mica includes, for example, a range of 25 μm or more and 60 μm or less. It should be noted that, here, "particle size" refers to the longest diameter of the particle cross-section. The flakes constituting the first interference pigments 14a and 14b can also be materials other than mica, such as silicon dioxide, alumina, glass, or polysilicate. The metal oxide film constituting the first interference pigments 14a and 14b can also be materials other than titanium dioxide, such as zirconium oxide, zinc oxide, iron oxide, or tin oxide.

[0079] When incident light E is incident on the first color pattern layer 10 from the first interference pigments 14a and 14b respectively, distinct first interference lights 15a and 15b are generated. That is, the wavelengths of the first interference lights 15a and 15b are different. Therefore, the first interference pigments 14a and 14b exhibit mixed colors. For example, the first interference pigments 14a and 14b are a red interference pigment (red pearlescent pigment) and a gold interference pigment (gold pearlescent pigment), respectively. In this case, the first interference lights 15a and 15b exhibit red and gold colors, respectively. The proportions of the first interference pigments 14a and 14b can be the same or different.

[0080] The second color pattern layer 20 can be applied to the first color pattern layer 10, for example, by screen printing, inkjet printing, gravure printing, or offset printing. Figure 2 As shown, the second color pattern layer 20 is composed of a plurality of second color dots 21. Here, "dot" refers to a point that constitutes an element of a printed image, and its shape is not limited to a circle; it can also be a rectangle, a polygon, or other shapes. Each of the plurality of second color dots 21 contains a second color binder 22 and a plurality of second color pigment flakes 23 dispersed within the second color binder 22. When the second color binder 22 is set to 100 parts by weight, the content of the plurality of second color pigment flakes 23 is, for example, in the range of 0.5 parts by weight or more and 20 parts by weight or less.

[0081] Examples of adhesives 22 used for the second color include vinyl-based resins, acrylic-based resins, thermoplastic urethane-based resins, polyester-based resins, and polycarbonate-based resins. The thickness of the second-color pattern layer 20 is, for example, 1 μm to 10 μm. It should be noted that the second-color pattern layer 20 may also 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. Furthermore, the second-color pattern layer 20 may also contain a weather-resistant agent. Known ultraviolet absorbers and light stabilizers can be used as weather-resistant agents.

[0082] In the example of 1-1, multiple second-color pigment sheets 23 are second interference pigments 24 that generate monochromatic interference light different from the mixed colors exhibited by the first interference pigments 14a and 14b. The second interference pigment 24 consists of a thin sheet (not shown) that is translucent to visible light and a metal oxide film (not shown) covering the sheet. In incident light incident from the translucent substrate 4 side onto the second-color pattern layer 20, the light reflected from the surface of the metal oxide film interferes with the light that passes through the metal oxide film and is reflected from the surface of the sheet, generating interference light. By adjusting the thickness and refractive index of the metal oxide film, interference light with a desired wavelength can be generated.

[0083] In the example of 1-1, the second interference pigment 24 is titanium dioxide-coated mica. The particle size range of this titanium dioxide-coated mica includes, for example, a range of 25 μm or more and 60 μm or less. It should be noted that, here, "particle size" refers to the longest diameter of the particle cross-section. The sheet constituting the second interference pigment 24 can also be a material other than mica, for example, silicon dioxide, alumina, glass, or polysilicate. The metal oxide film constituting the second interference pigment 24 can also be a material other than titanium dioxide, for example, zirconium oxide, zinc oxide, iron oxide, or tin oxide.

[0084] Monochromatic second interference light 25 is generated from the second interference pigment 24 by incident light E onto the second color pattern layer 20. Thus, the second interference pigment 24 exhibits monochromaticity. The second interference pigment 24 can be any interference pigment that generates monochromatic second interference light 25 that differs from the mixed colors exhibited by the first interference pigments 14a and 14b; for example, it can be a green interference pigment (green pearlescent pigment). In this case, the second interference light 25 appears green.

[0085] The transmissive smoke-colored printing layer 30 has the function of attenuating light transmitted from the front side of the viewpoint through the printed material 2. The transmissive smoke-colored printing layer 30 is disposed on the outermost surface opposite to the translucent substrate 4, relative to the pattern printing layer 5. In the example of 1-1, as... Figure 1As shown, a transmissive smoke printing layer 30 is disposed on the second color pattern layer 20. The transmissive smoke printing layer 30 can be made using ink obtained by dispersing a small amount of carbon black in a vinyl-based, acrylic-based, urethane-based, or polyester-based resin binder, and disposed on the second color pattern layer 20, for example, by screen printing, inkjet printing, gravure printing, or offset printing. The thickness of the transmissive smoke printing layer 30 is, for example, 1 μm to 10 μm. It should be noted that the transmissive smoke printing layer 30 may also contain a curing agent. In this case, the heat resistance of the transmissive smoke printing layer 30 and its adhesion to the second color pattern layer 20 can be improved. Furthermore, the transmissive smoke printing layer 30 may also contain a weather-resistant agent. Known ultraviolet absorbers and light stabilizers can be used as weather-resistant agents.

[0086] In printed matter 2, a pattern is produced by color mixing of 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.

[0087] The total light transmittance of printed material 2 is, for example, 30% to 70%. The total light transmittance referred to here is the value obtained by measuring the total light transmittance using a spectrophotometer (for example, Shimadzu Corporation, UV-2100 spectrophotometer).

[0088] In the printed matter 2 of the example 1-1 described above, the first color pattern layer 10 contains first interference pigments 14a and 14b, and the second color pattern layer 20 contains second interference pigment 24. Therefore, even with a smaller number of printing layers, a three-dimensional pattern can be achieved. Furthermore, in printed matter 2, the pattern layer containing interference pigments that generate mutually different interference light is only the first color pattern layer 10 of the first color pattern layer and the second color pattern layer 20, thus simplifying color mixing and registration operations during printing. Therefore, according to printed matter 2, even with a smaller number of printing layers, a three-dimensional pattern can be represented, and color mixing and registration operations during printing can be simplified.

[0089] In the example of 1-1, the printed material 2 includes a transmissive smoke printing layer 30 disposed on the second color pattern layer 20. As a result, the color rendering properties of the first color pattern layer 10 and the second color pattern layer 20 are superior. Moreover, since the transmissive smoke printing layer 30 is transmissive, it can effectively suppress the decrease in visual recognizability of the image on the display device 1.

[0090] In the example of 1-1, the first interference pigments 14a and 14b and the second interference pigment 24 each contain titanium dioxide-coated mica with a particle size of 25 μm or more and 60 μm or less. When titanium dioxide-coated mica with a particle size of 25 μm or more is included, the transmittance and color development of the pattern printing layer 5 are good. When titanium dioxide-coated mica with a particle size of 60 μm or less is included, the decrease in resolution and grayscale of the pattern printing layer 5 can be suppressed.

[0091] In the example 1-1, when the first color adhesive 12 is set to 100 parts by weight, the content of the plurality of first color pigment flakes 13 is in the range of 0.5 parts by weight or more and 20 parts by weight or less. When the second color adhesive is set to 100 parts by weight, the content of the plurality of second color pigment flakes 23 is in the range of 0.5 parts by weight or more and 20 parts by weight or less. Since the content of the plurality of first color pigment flakes 13 is in the range of 0.5 parts by weight or more, the pattern of the first color pattern layer 10 can be well represented. Since the content of the plurality of first color pigment flakes 13 is in the range of 20 parts by weight or less, the decrease in the film-forming properties and transmittance of the first color pattern layer 10 can be suppressed. Similarly, since the content of the plurality of second color pigment flakes 23 is in the range of 0.5 parts by weight or more and 20 parts by weight or less when the second color adhesive 22 is set to 100 parts by weight, the pattern of the second color pattern layer 20 can be well represented, and the decrease in the film-forming properties and transmittance of the second color pattern layer 20 can be suppressed.

[0092] In example 1-1, the total light transmittance of printed material 2 is 30% to 70%. When the total light transmittance is above 30%, when printed material 2 is placed in front of the image, the light from the image makes the pattern printing layer 5 less visually discernible, allowing for clearer visual recognition of the image. When the total light transmittance is below 70%, even if the image is black, the pattern on the pattern printing layer 5 can be prevented from appearing dark.

[0093] In the example 1-1, the display device 1 includes a printed material 2 and a light source 3. According to the display device 1, when the light source 3 is not lit, the pattern on the printed layer 5 can be visually recognized, and when the light source 3 is lit, the transmitted light (pattern display, image display, etc.) from the light source 3 can be visually recognized.

[0094] In example 1-1, the light source 3 can be a display device. In this case, when the display is not lit, the pattern on the pattern printing layer 5 can be visually recognized, and when the display is lit, the transmitted light (pattern display, image display, etc.) from the display can be visually recognized.

[0095] As described above, the various interference pigments 14a, 14b, and 24 can include pearlescent pigments. That is, the pattern printing layer 5 can contain a variety of different interference pearlescent pigments (interference pigments 14a, 14b, and 24). Therefore, the printed matter 2 is a printed matter 2 having a translucent substrate 4 and a pattern printing layer 5, and the pattern printing layer 5 can contain a variety of interference pearlescent pigments. Thus, the pattern printing layer 5 can achieve a three-dimensional effect.

[0096] Pattern printing layer 5 can have a first color pattern layer 10 containing interference pearlescent pigment and a second color pattern layer 20 containing interference pearlescent pigment. As a result, pattern printing layer 5 can achieve a more three-dimensional effect.

[0097] The first color pattern layer 10 and the second color pattern layer 20 can each contain a variety of interference pearlescent pigments. This allows the pattern printing layer 5 to achieve a more three-dimensional effect. For example, in addition to interference pigment 24, the second color pattern layer 20 can also contain other interference pearlescent pigments.

[0098] The particle sizes of various interference pearlescent pigments can differ from each other. Thus, by using interference pearlescent pigments with varying particle sizes, the decrease in the transmittance of the pattern printing layer 5 can be suppressed.

[0099] The particle size of various interference pearlescent pigments can be 25 μm or more and 60 μm or less. In this case, the color rendering of the pattern in the pattern printing layer 5 can be improved. In addition, the necessary decrease in the transmittance of the pattern printing layer 5 can be suppressed, thereby improving the visual recognition of the image on the display device when it is used.

[0100] Interference pearlescent pigments can contain titanium dioxide-coated mica. In this case, the wavelength of the interference light can be adjusted by changing the thickness of the titanium dioxide film. Furthermore, the perceived brightness can be enhanced by improving the smoothness of the mica surface.

[0101] It should be noted that the effect of the pattern printing layer 5 containing a variety of interference pearlescent pigments can be obtained not only in the first example, but also in the second to sixth examples described later.

[0102] [Examples 1-2] The following is for reference Figure 3 and Figure 4 The printed material 2A of examples 1-2 will be explained. It should be noted that in the explanation of examples 1-2, the descriptions that are repeated in examples 1-1 above are omitted, and the parts that are different from those in examples 1-1 above are described. That is to say, to the extent that it is technically possible, the descriptions of examples 1-1 above can be appropriately used in examples 1-2.

[0103] Figure 3This is a schematic cross-sectional view of a printed material representing examples 1-2. Figure 4 It is a schematic representation Figure 3 The image shows a cross-sectional view of the white pattern layer on the printed material. Printed material 2A includes a translucent substrate 4 and a pattern printing layer 5. Printed material 2A also includes a white pattern layer 40 disposed on a second color pattern layer 20.

[0104] The white pattern layer 40 can be applied to the second color pattern layer 20, for example, by screen printing, inkjet printing, gravure printing, or offset printing. Figure 4 As shown, the white pattern layer 40 is composed of a plurality of silver dots 41. Here, "dot" refers to a point that constitutes an element of a printed image, and its shape is not limited to a circle; it can also be rectangular, polygonal, or other shapes. Each of the plurality of silver dots 41 contains a silver binder 42 and a plurality of silver pigment flakes 43 dispersed within the silver binder 42. When the silver binder 42 is set to 100 parts by weight, the content of the plurality of silver pigment flakes 43 is, for example, in the range of 0.5 parts by weight or more and 20 parts by weight or less.

[0105] Examples of adhesives 42 used for the silver pattern layer include vinyl-based resins, acrylic-based resins, thermoplastic urethane-based resins, polyester-based resins, and polycarbonate-based resins. The thickness of the white pattern layer 40 is, for example, 1 μm to 10 μm. It should be noted that the white pattern layer 40 may also contain a curing agent. In this case, the heat resistance of the white pattern layer 40 and its adhesion to the second-color pattern layer 20 can be improved. Furthermore, the white pattern layer 40 may also contain a weather-resistant agent. Known ultraviolet absorbers and light stabilizers can be used as weather-resistant agents.

[0106] Even with the configuration of the printed material 2A described above, it can achieve the same effect as the example in 1-1 above. Moreover, in the example in 1-2, a white pattern layer 40 is provided on the second color pattern layer 20 and is composed of a plurality of silver dots 41, each of the plurality of silver dots 41 containing a silver binder 42 and a plurality of silver pigment flakes 43 dispersed within the silver binder 42. As a result, the color development of the first color pattern layer 10 and the second color pattern layer 20 is excellent, and the pattern printing layer 5 can have a pattern that gives a white impression.

[0107] [Examples 1-3] The following is for reference Figure 5Printed material 2B will describe examples 1-3. It should be noted that in the description of examples 1-3, details that are repeated in examples 1-1 and 1-2 above are omitted, and the parts that differ from examples 1-1 and 1-2 above are described. That is to say, to the extent technically possible, the details of examples 1-1 and 1-2 above can be appropriately used in examples 1-3.

[0108] Figure 5 This is a schematic cross-sectional view of the printed matter in examples 1-3. Printed matter 2B has a translucent substrate 4 and a pattern printing layer 5. That is, printed matter 2B does not have a translucent smoke-colored printing layer 30 and a white pattern layer 40. Even with the configuration of printed matter 2B described above, it can achieve the same effect as in examples 1-1 above.

[0109] [Examples 1-4] The following is for reference Figure 6 The printed material 2C, which describes examples 1-4, will be used as an example. It should be noted that in the description of examples 1-4, details that are repeated in examples 1-1, 1-2, and 1-3 above are omitted, and the parts that differ from those in examples 1-1, 1-2, and 1-3 above are described. That is to say, to the extent technically possible, the details of examples 1-1, 1-2, and 1-3 above may be appropriately used in examples 1-4.

[0110] Figure 6 This is a schematic cross-sectional view of the printed matter in examples 1-4. Printed matter 2C includes a translucent substrate 4, a pattern printing layer 5, a white pattern layer 40, and a translucent smoke printing layer 30. The white pattern layer 40 is disposed on the second color pattern layer 20, and the translucent smoke printing layer 30 is disposed on the white pattern layer 40. Even with the configuration of printed matter 2C described above, it can achieve the same functional effect as examples 1-1, 1-2, and 1-3 described above.

[0111] The display device and printed material disclosed herein are not limited to the examples described above, and various other variations are possible. For example, the second color pattern layer may contain first interference pigments of multiple colors that generate mutually different first interference light, and the first color pattern layer may contain second interference pigments that generate monochromatic second interference light that differs from the mixed colors presented by the multiple first interference pigments. Furthermore, in the examples described above, the first color pigment sheet is a two-color first interference pigment, but the first color pigment sheet may also be a three-color or more first interference pigment.

[0112] [Example 2] [Example 2-1] As an example of printed materials and display devices, they can be adopted with... Figure 1 The printed materials and display devices shown have the same basic structure. Therefore, in this example of printed materials and display devices, descriptions of structures with the same basic structure as those in example 1-1 are omitted. The printed materials and display devices in example 2-1 employ... Figure 7 The layer structure shown is used to replace Figure 2 The layers shown are structurally similar.

[0113] The first interference pigment 14a comprises: a plurality of first titanium dioxide-coated mica 18a with a small particle size range of 5 μm to 25 μm; and a plurality of second titanium dioxide-coated mica 18b with a large particle size range of 25 μm to 40 μm. The first interference pigment 14b comprises: a plurality of first titanium dioxide-coated mica 16a with a small particle size range of 5 μm to 25 μm; and a plurality of second titanium dioxide-coated mica 16b with a large particle size range of 25 μm to 40 μm. The average particle size (D50) of the first titanium dioxide-coated mica 18a and 16a is, for example, about 15 μm, and the average particle size (D50) of the second titanium dioxide-coated mica 18b and 16b is, for example, about 25 μm. Thus, the average particle size of the first titanium dioxide-coated mica 18a and 16a is smaller than the average particle size of the second titanium dioxide-coated mica 18b and 16b. The second titanium dioxide-coated mica 18b and 16b can also contain a particle size range of 25 μm to 60 μm. In this case, the average particle size (D50) of the second titanium dioxide-coated mica 18b and 16b is, for example, about 35 μm. Figure 7 As shown, multiple first titanium dioxide-coated mica 18a, 16a are each configured to fill the gaps between multiple second titanium dioxide-coated mica 18b, 16b. Here, "particle size" refers to the longest diameter of the particle cross-section.

[0114] By incident light L onto the first color pattern layer 10 from the first interference pigments 14a and 14b respectively, first interference lights 17a and 17b that are distinct from each other are generated. That is, the wavelengths of the first interference lights 17a and 17b are different from each other. Therefore, the first interference pigments 14a and 14b exhibit mixed colors. For example, the first interference pigments 14a and 14b can be a red interference pigment (red pearlescent pigment) and a gold interference pigment (gold pearlescent pigment), respectively. In this case, the first interference lights 17a and 17b exhibit red and gold, respectively. The first interference pigments 14a and 14b can also each be an interference pigment of other colors. The proportions of the first interference pigments 14a and 14b can be the same or different from each other.

[0115] As the second color pattern layer 20, a second color pattern layer 20 with the same theme as the second color pattern layer 20 shown in the first example can be adopted.

[0116] The second interference pigment 24 comprises: a plurality of first titanium dioxide-coated mica 25a with a small particle size range of 5 μm to 25 μm; and a second titanium dioxide-coated mica 25b with a large particle size range of 25 μm to 40 μm. The average particle size (D50) of the first titanium dioxide-coated mica 25a is, for example, about 15 μm, and the average particle size (D50) of the second titanium dioxide-coated mica 25b is, for example, about 25 μm. Thus, the average particle size of the first titanium dioxide-coated mica 25a is smaller than the average particle size of the second titanium dioxide-coated mica 25b. The second titanium dioxide-coated mica 25b may also contain a particle size range of 25 μm to 60 μm. In this case, the average particle size (D50) of the second titanium dioxide-coated mica 25b is, for example, about 35 μm. Multiple first titanium dioxide-coated mica 25a are each configured to fill the gaps between multiple second titanium dioxide-coated mica 25b. Here, "particle size" refers to the longest diameter of the particle cross-section.

[0117] Monochromatic second interference light 26 is generated from the second interference pigment 24 by incident light L onto the second color pattern layer 20. Thus, the second interference pigment 24 exhibits monochromaticity. The second interference pigment 24 can be any interference pigment that generates monochromatic second interference light 26 that differs from the mixed colors exhibited by the first interference pigments 14a and 14b; for example, it can be a green interference pigment (green pearlescent pigment). In this case, the second interference light 26 appears green. It should be noted that the second interference pigment 24 can also be an interference pigment of a color other than green.

[0118] The transmissive smoke-colored printing layer 30 is a layer used to attenuate light transmitted from the printed material 2. The transmissive smoke-colored printing layer 30 is disposed on the outermost surface opposite to the translucent substrate 4, relative to the pattern printing layer 5. In the example of 2-1, as... Figure 1 As shown, a transmissive smoke printing layer 30 is disposed on the second color pattern layer 20. The transmissive smoke printing layer 30 can be made using ink obtained by dispersing a small amount of carbon black in a vinyl-based, acrylic-based, urethane-based, or polyester-based resin binder, and disposed on the second color pattern layer 20, for example, by screen printing, inkjet printing, gravure printing, or offset printing. The thickness of the transmissive smoke printing layer 30 is, for example, 1 μm to 10 μm. It should be noted that the transmissive smoke printing layer 30 may also contain a curing agent. In this case, the heat resistance of the transmissive smoke printing layer 30 and its adhesion to the second color pattern layer 20 can be improved. Furthermore, the transmissive smoke printing layer 30 may also contain a weather-resistant agent. Known ultraviolet absorbers and light stabilizers can be used as weather-resistant agents.

[0119] In printed matter 2, a pattern is produced by additive mixing of the first interference light 17a, 17b generated by the first interference pigments 14a, 14b and the second interference light 26 generated by the second interference pigment 24.

[0120] The total light transmittance of printed material 2 is, for example, 30% to 70%. The total light transmittance referred to here is the value obtained by measuring the total light transmittance using a spectrophotometer (for example, Shimadzu Corporation, UV-2100 spectrophotometer).

[0121] In the printed material 2 of example 2-1 described above, in the first color pattern layer 10, multiple first titanium dioxide coated mica 18a and 16a, each containing a small particle size ranging from 5 μm to 25 μm, are each configured to fill the gaps between multiple second titanium dioxide coated mica 18b and 16b, each containing a large particle size ranging from 25 μm to 40 μm. In the printed material 2, in the second color pattern layer 20, multiple first titanium dioxide coated mica 25a, each containing a small particle size ranging from 5 μm to 25 μm, are each configured to fill the gaps between multiple second titanium dioxide coated mica 25b, each containing a large particle size ranging from 25 μm to 40 μm. Therefore, according to the printed material 2, a pattern with excellent visual legibility and color rendering can be provided. Furthermore, in Printed Material 2, the first color pattern layer 10 contains large-particle-size second titanium dioxide-coated mica 18b and 16b, and the second color pattern layer 20 contains large-particle-size second titanium dioxide-coated mica 25b, thereby suppressing the decrease in transmittance of the pattern printing layer 5. Therefore, according to Printed Material 2, when the power is turned on, the decrease in visual legibility of the image on the display device can be well suppressed.

[0122] In the example 2-1, the large-particle-size second titanium dioxide-coated mica 18b, 16b, 25b can also be composed of particles ranging from 25 μm to 60 μm. In this case, the color rendering of the pattern is superior. Furthermore, it can suppress the necessary decrease in the transmittance of the pattern printing layer 5, thereby improving the visual recognizability of the image on the display device 1 when a display device is used.

[0123] In the example 2-1, the first interference pigments 14a and 14b and the second interference pigment 24 are interference pigments comprising titanium dioxide-coated mica. Therefore, by adjusting the thickness of the titanium dioxide film, the wavelength of the interference light can be adjusted. Furthermore, by improving the smoothness of the mica surface, the perceived brightness can be enhanced.

[0124] In the second example, the structure of examples 1-2 to 1-4 from the first example can also be adopted.

[0125] In the examples above, the first interference pigment and the second interference pigment each comprise a plurality of first titanium dioxide-coated mica and a plurality of second titanium dioxide-coated mica, but it is sufficient that at least one of the first interference pigment and the second interference pigment comprises a plurality of first titanium dioxide-coated mica and a plurality of second titanium dioxide-coated mica. Furthermore, in the examples above, the first color pigment sheet is a two-color first interference pigment, but the first color pigment sheet can also be a three-color or more first interference pigment. In addition, multiple colors of first interference pigments can also be mixed together.

[0126] [Experimental Example] Here, experimental examples are used to illustrate the tendency of the visual effects of images and patterns on liquid crystal displays caused by the particle size of titanium dioxide-coated mica contained in the pattern printing layer. For example... Figure 8 As shown in Experimental Examples 1-3 described later, printed materials with adjusted particle size of titanium dioxide-coated mica were produced. Figure 8 This is a diagram showing the composition of the printed materials in Experiments 1-3. A liquid crystal display (LCD) was installed on the back side (transmissive smoke printing layer side) of the printed materials in Experiments 1-3. The distance between the printed materials and the LCD was set to 2 mm. The visual distinguishability of the LCD in the power-on and power-off states (items 1-4 described later) was evaluated. Four people performed sensory evaluations of items 1-4, and the average score was calculated.

[0127] <Experimental Example 1> A printed material is produced by sequentially depositing a first color pattern layer, a second color pattern layer, a white pattern layer, and a transmissive smoke printing layer on a transparent PET substrate. In Experimental Example 1, the first color pattern layer was formed by screen printing using an ink containing a first color binder (urethane resin) and red and gold interference pigments dispersed within the first color binder. As for the content of the red and gold interference pigments, with 100 parts by weight of the first color binder, 8 parts by weight of red interference pigment with a particle size of 10–40 μm, 2 parts by weight of red interference pigment with a particle size of 5–25 μm, 5 parts by weight of gold interference pigment with a particle size of 10–60 μm, and 2 parts by weight of gold interference pigment with a particle size of 5–25 μm.

[0128] In Experiment 1, a second-color pattern layer was formed by screen printing using an ink comprising a second-color binder (urethane resin) and green interference pigment dispersed within the second-color binder. As for the content of the green interference pigment, with 100 parts by weight of the second-color binder, 4 parts by weight of green interference pigment having a particle size of 10–40 μm, and 1 part by weight of green interference pigment having a particle size of 5–25 μm. The red, gold, and green interference pigments were all titanium dioxide-coated mica.

[0129] In Experiment 1, a white pattern layer was formed using an ink comprising a silver binder (urethane resin) and silver pigment flakes dispersed within the silver binder via screen printing. As the silver pigment flake content, with 100 parts by weight of silver binder, 1 part by weight of silver pigment flakes having a particle size of 5–25 μm was used. Furthermore, a transmissive smoke-colored printing layer was formed using an ink obtained by mixing medium ink and black ink in a 40:1 ratio via screen printing.

[0130] <Experimental Example 2> A printed material is produced by sequentially depositing a first color pattern layer, a second color pattern layer, a white pattern layer, and a transmissive smoke printing layer on a transparent PET substrate. In Experimental Example 2, the first color pattern layer was formed by screen printing using an ink containing a first color binder (urethane resin) and red and gold interference pigments dispersed within the first color binder. As for the content of the red and gold interference pigments, with 100 parts by weight of the first color binder, 8 parts by weight of red interference pigment with a particle size of 10–40 μm, 2 parts by weight of red interference pigment with a particle size of 5–25 μm, 5 parts by weight of gold interference pigment with a particle size of 10–60 μm, and 2 parts by weight of gold interference pigment with a particle size of 5–25 μm.

[0131] In Experiment 2, a second-color pattern layer was formed by screen printing using an ink comprising a second-color binder (urethane resin) and green interference pigment dispersed within the second-color binder. As the content of the green interference pigment, with 100 parts by weight of the second-color binder, 4 parts by weight of the green interference pigment having a particle size of 10–40 μm was used. The red, gold, and green interference pigments were all titanium dioxide-coated mica.

[0132] In Experiment 2, a white pattern layer was formed using an ink comprising a silver binder (urethane resin) and silver pigment flakes dispersed within the silver binder via screen printing. As the silver pigment flake content, with 100 parts by weight of silver binder, 1 part by weight of silver pigment flakes having a particle size of 5–25 μm was used. Furthermore, a transmissive smoke-colored printing layer was formed using an ink obtained by mixing ink and black ink in a 40:1 ratio via screen printing.

[0133] <Experimental Example 3> A printed material is produced by sequentially depositing a first color pattern layer, a second color pattern layer, and a transmissive smoke printing layer on a transparent PET substrate. In Experimental Example 3, the first color pattern layer was formed by screen printing using an ink comprising a first color binder (urethane resin) and green interference pigment dispersed within the first color binder. As for the content of the green interference pigment, when the first color binder was set to 100 parts by weight, 4 parts by weight of green interference pigment having a particle size of 10–40 μm were used, and 1 part by weight of green interference pigment having a particle size of 5–25 μm were used.

[0134] In Experiment 3, a second-color pattern layer was formed by screen printing using an ink comprising a second-color binder (urethane resin) and red and gold interference pigments dispersed within the second-color binder. As for the content of the red and gold interference pigments, with 100 parts by weight of the second-color binder, 8 parts by weight of the red interference pigment having a particle size of 10–40 μm, and 5 parts by weight of the gold interference pigment having a particle size of 10–60 μm.

[0135] In Experiment 3, an ink obtained by mixing ink oil and black ink in a 40:1 ratio was used to form a translucent smoke-colored printing layer through screen printing technology.

[0136] <Item 1: Clarity of Displayed Content> The clarity of images and text displayed on the LCD screen when the power is on was evaluated.

[0137] <Rating> 5 points: Compared to images and text displayed on an LCD screen, the graphics have a weaker presence, and the images and text appear clearer.

[0138] 3 points: Compared to images and text displayed on an LCD screen, the presence of graphics is slightly stronger, and images and text appear to be slightly covered by graphics.

[0139] 1 point: Compared to images and text displayed on an LCD screen, graphics have a stronger presence, and images and text appear to be covered by graphics.

[0140] <Item 2: Brightness of Displayed Content> The brightness of images and text displayed on the LCD screen when the power is on was evaluated.

[0141] <Rating> 5 points: Images and text displayed on the LCD screen appear bright.

[0142] 3 points: Images and text displayed on the LCD screen appear slightly dark.

[0143] 1 point: The images and text displayed on the LCD screen appear quite dark.

[0144] <Project 3: The Impact of Black LCD Displays> The effect of a black LCD display with the power off on the image was evaluated.

[0145] <Rating> 5 points: Without the black effect of an LCD monitor, the pattern can be fully visually recognized.

[0146] 3 points: The black level of the LCD screen is slightly affected, and the image looks slightly darker (with slightly higher transparency).

[0147] 1 point: The effect of black on the LCD screen was observed, and the pattern looked quite dark (high transparency).

[0148] <Project 4: On the color rendering of patterns> The color rendering of the pattern was evaluated when the power supply of the LCD was turned off.

[0149] <Rating> 5 points: The colors of the pattern are well rendered.

[0150] 3 points: The color rendering of the pattern is slightly weak, and the color of the pattern looks pale (whitish).

[0151] 1 point: The pattern has weak color rendering, and the colors in the pattern appear white.

[0152] The sensory evaluation results for items 1-4 of Experiments 1-3 are shown in Table 1 below. It should be noted that experimental examples with scores of 3 or higher are considered to be at a practically acceptable level. Experiment 1 shows the following trend: the influence of a black LCD on the image is quite low, exhibiting a sufficiently high level of visual recognizability. Furthermore, high evaluation results were also obtained regarding image color rendering and image / text display sharpness / brightness. On the other hand, Experiments 2 and 3 show the following trend: the influence of a black LCD on the image is suppressed to a low degree, and the overall effect regarding image color rendering and image / text display sharpness / brightness is also good.

[0153] [Table 1] [Example 3] [Example 3-1] As an example of printed materials and display devices, they can be adopted with... Figure 1 The printed material and display device shown have the same basic structure. Therefore, in this example of the printed material and display device, the description of the structure having the same basic structure as the printed material and display device in example 1-1 is omitted. The printed material and display device in this example adopts... Figure 9 The layer structure shown is used to replace Figure 2 The layers shown are structurally similar.

[0154] The first color pattern layer 10 can be applied to surface 4a, for example, by screen printing, inkjet printing, gravure printing, or offset printing. Figure 9 As shown, the first color pattern layer 10 is composed of a plurality of first color dots 11. Here, "dot" refers to a point that constitutes an element of a printed image, and its shape is not limited to a circle; it can also be rectangular, polygonal, or other shapes. Each of the plurality of first color dots 11 contains a first color binder 12 and a plurality of first color pigment flakes 13 dispersed within the first color binder 12. When the first color binder 12 is set to 100 parts by weight, the content of the plurality of first color pigment flakes 13 is, for example, in the range of 0.5 parts by weight or more and 20 parts by weight or less. In this case, the pattern of the first color pattern layer 10 can be well represented, and the decrease in the coating properties and transmittance of the first color pattern layer 10 can be suppressed.

[0155] In example 3-1, multiple first-color pigment sheets 13 are interference pigments 14 (first interference pigments) that generate monochromatic interference light of a predetermined color. The interference pigment 14 consists of a thin sheet (not shown) that is transmissive to visible light and a metal oxide film (not shown) covering the sheet. In incident light incident from the translucent substrate 4 side onto the first-color pattern layer 10, light reflected from the surface of the metal oxide film interferes with light that passes through the metal oxide film and is reflected from the surface of the sheet, generating interference light. By adjusting the thickness and refractive index of the metal oxide film, interference light with a desired wavelength can be generated.

[0156] Monochromatic interference light 15 (first interference light) is generated from the interference pigment 14 by incident light E into the first color pattern layer 10. Thus, the interference pigment 14 appears monochromatic.

[0157] The second color pattern layer 20 can be applied to the first color pattern layer 10, for example, by screen printing, inkjet printing, gravure printing, or offset printing. Figure 9 As shown, the second-color pattern layer 20 is composed of a plurality of second-color dots 21. Here, "dot" refers to a point that constitutes an element of a printed image, and its shape is not limited to a circle; it can also be rectangular, polygonal, or other shapes. Each of the plurality of second-color dots 21 contains a second-color binder 22 and a plurality of second-color pigment flakes 23 dispersed within the second-color binder 22. When the second-color binder 22 is set to 100 parts by weight, the content of the plurality of second-color pigment flakes 23 is, for example, in the range of 0.5 parts by weight or more and 20 parts by weight or less. The pattern of the second-color pattern layer 20 can be well represented, and the decrease in the film-forming properties and transmittance of the second-color pattern layer 20 can be suppressed.

[0158] Monochromatic interference light 25 (second interference light) is generated by incident light E onto the second color pattern layer 20 from interference pigment 24 (second interference pigment). Thus, interference pigment 24 exhibits a monochromatic appearance. Interference pigment 24 can be any interference pigment that generates monochromatic interference light 25, which is a different color from that exhibited by interference pigment 14.

[0159] The total light transmittance of printed material 2 is, for example, 30% to 70%. The total light transmittance referred to here is the value obtained by measuring the total light transmittance using a spectrophotometer (e.g., Shimadzu UV-2100 spectrophotometer manufactured by Shimadzu Corporation). When the total light transmittance is 30% or higher, when printed material 2 is placed in front of an image, the image light makes the pattern printing layer 5 less visually discernible, allowing for clearer visual recognition of the image. When the total light transmittance is 70% or lower, even if the image is black, the pattern on the pattern printing layer 5 can be prevented from appearing dark.

[0160] Next, refer to Figure 10 and Figure 11 The combination of colors in the pattern printing layer 5 is explained. Figure 10 (a) is a schematic diagram representing the combination of colors in the pattern printing layer 5. Figure 10 (b) is a schematic diagram showing the combination of colors of the pattern printing layer 105 in the comparative embodiment. Figure 11 This is a schematic diagram illustrating a specific example of the color combination in the printing layer 5 of the pattern.

[0161] like Figure 10 As shown in (a), monochromatic interference light of "color A" is generated by including a monochromatic interference pigment of "color A" in the first color pattern layer 10. Monochromatic interference light of "color B" is generated by including a monochromatic interference pigment of "color B" in the second color pattern layer 20. Color B is a different color from color A. Therefore, in the printed material 2, the pattern is expressed by additively mixing the interference light of color A and the interference light of color B.

[0162] exist Figure 11 In the example shown in (a), "gold" is used as color A of the first color pattern layer 10, and "red" is used as color B of the second color pattern layer 20. Printed material 2 can represent a wood grain pattern using an additive mixture of gold and red. By using gold for the first color pattern layer 10, a light-colored wood grain can be represented. It should be noted that in this case, Figure 9 Interference pigment 14, for example, is a gold interference pigment (gold pearlescent pigment). Interference light 15 appears gold. Interference pigment 24, for example, is a red interference pigment (red pearlescent pigment). Interference light 25 appears red.

[0163] exist Figure 11 In the example shown in (b), "red" is used as color A of the first color pattern layer 10, and "gold" is used as color B of the second color pattern layer 20. The printed material 2 can represent the wood grain pattern by mixing red and gold additively. By using red as the first color pattern layer 10, a slightly reddish wood grain can be represented.

[0164] exist Figure 11 In the example shown in (c), "silver" is used as color A of the first color pattern layer 10, and "gold" is used as color B of the second color pattern layer 20. Printed material 2 can represent a hairline pattern using additive color mixing of silver and gold. By using gold for the second color pattern layer 20, the usual stainless steel hairline can be adjusted to a golden tone. It should be noted that... Figure 9 The interference pigment 14 shown is, for example, a silver interference pigment (silver pearlescent pigment). The interference light 15 appears silver.

[0165] exist Figure 11 In the example shown in (d), "silver" is used as color A of the first color pattern layer 10, and "red" is used as color B of the second color pattern layer 20. The printed material 2 can represent a hairline pattern as a design by mixing silver and red additive colors. By using red for the second color pattern layer 20, the stainless steel hairline can be adjusted to a bronze tone.

[0166] exist Figure 11 In the example shown in (e), "gold" is used as color A of the first color pattern layer 10, and "silver" is used as color B of the second color pattern layer 20. The printed material 2 can represent a hairline pattern as a design by mixing gold and silver additively. By using gold (or a color with gold undertones) as the first color pattern layer 10, a stronger emphasis on the gold tone can be achieved.

[0167] In the printed material 2 of example 3-1 described above, the first color pattern layer 10 contains interference pigment 14 that generates monochromatic interference light 15, and the second color pattern layer 20 contains interference pigment 24 that generates monochromatic interference light 25 that is different in color from that presented by interference pigment 14. Here, as an example for comparison, such as Figure 10 As shown in (b), an example is a printed material 102 in which a first color pattern layer 10 contains interference pigments of colors X and Y, and a second color pattern layer 20 contains interference pigments of color Z. For example, the configuration of the embodiment used for comparison is shown as in... Figure 11 In cases where the pattern is as described, the X, Y, and Z colors need to be adjusted, and the color matching and registration operations during printing are time-consuming. On the other hand, for those that can be... Figure 11 Patterns represented with fewer colors can be depicted by limiting the interference pigments contained in the first color pattern layer 10 and the second color pattern layer 20 to a single color, as in printed matter 2 of this example. This allows the pattern to be represented using only the intensity of that single color. This simplifies color mixing and registration operations during printing. Therefore, based on printed matter 2, color mixing and registration operations during printing can be simplified.

[0168] In example 3, the structure of examples 1-2 to 1-4 from example 1 can also be adopted.

[0169] [Example 4] [Example 4-1] As an example of printed materials and display devices, they can be adopted with... Figure 1 The printed material and display device shown have the same basic structure. Therefore, in this example of the printed material and display device, the description of the structure having the same basic structure as the printed material and display device in example 1-1 is omitted. The printed material and display device in this example adopts... Figure 12 The layer structure shown is used to replace Figure 2The layers shown are structurally similar.

[0170] The first color pattern layer 10 can be applied to surface 4a, for example, by screen printing, inkjet printing, gravure printing, or offset printing. Figure 12 As shown, the first color pattern layer 10 is composed of a plurality of first color dots 11. Here, "dot" refers to a point that constitutes an element of a printed image, and its shape is not limited to a circle; it can also be rectangular, polygonal, or other shapes. Each of the plurality of first color dots 11 contains a first color binder 12 and a plurality of first color pigment flakes 13 dispersed within the first color binder 12. When the first color binder 12 is set to 100 parts by weight, the content of the plurality of first color pigment flakes 13 is, for example, in the range of 0.5 parts by weight or more and 20 parts by weight or less. In this case, the pattern of the first color pattern layer 10 can be well represented, and the decrease in the coating properties and transmittance of the first color pattern layer 10 can be suppressed.

[0171] In the example of 4-1, the plurality of first-color pigment sheets 13 are interference pigments 14 (second interference pigments) that generate monochromatic interference light of a predetermined color. Interference pigment 14 is the same color as any of the interference pigments 24a and 24b (first interference pigments) described later. Interference pigment 14 is composed of a thin sheet (not shown) that is transmissive to visible light and a metal oxide film (not shown) covering the thin sheet. In incident light incident from the transmissive substrate 4 side onto the first-color pattern layer 10, the light reflected from the surface of the metal oxide film interferes with the light that passes through the metal oxide film and is reflected from the surface of the thin sheet, generating interference light. By adjusting the thickness and refractive index of the metal oxide film, interference light with a desired wavelength can be generated.

[0172] Monochromatic interference light 15 (second interference light) is generated from the interference pigment 14 by incident light E into the first color pattern layer 10. Thus, the interference pigment 14 appears monochromatic.

[0173] The second color pattern layer 20 can be applied to the first color pattern layer 10, for example, by screen printing, inkjet printing, gravure printing, or offset printing. Figure 12 As shown, the second-color pattern layer 20 is composed of a plurality of second-color dots 21. Here, "dot" refers to a point that constitutes an element of a printed image, and its shape is not limited to a circle; it can also be rectangular, polygonal, or other shapes. Each of the plurality of second-color dots 21 contains a second-color binder 22 and a plurality of second-color pigment flakes 23 dispersed within the second-color binder 22. When the second-color binder 22 is set to 100 parts by weight, the content of the plurality of second-color pigment flakes 23 is, for example, in the range of 0.5 parts by weight or more and 20 parts by weight or less. The pattern of the second-color pattern layer 20 can be well represented, and the decrease in the film-forming properties and transmittance of the second-color pattern layer 20 can be suppressed.

[0174] In example 4-1, the multiple second-color pigment sheets 23 are interference pigments 24a and 24b of various colors that generate different interference light. Each interference pigment 24a and 24b consists of a thin sheet (not shown) that is transmissive to visible light and a metal oxide film (not shown) covering the sheet. In incident light incident from the transmissive substrate 4 onto the second-color pattern layer 20, the light reflected from the surface of the metal oxide film interferes with the light that passes through the metal oxide film and is reflected from the surface of the sheet, generating interference light. By adjusting the thickness and refractive index of the metal oxide film, interference light with a desired wavelength can be generated.

[0175] In the example of 4-1, interference pigments 24a and 24b are titanium dioxide-coated mica. The particle size range of this titanium dioxide-coated mica includes, for example, a range of 25 μm or more and 60 μm or less. It should be noted that, here, "particle size" refers to the longest diameter of the particle cross-section. The flakes constituting interference pigments 24a and 24b can also be materials other than mica, such as silicon dioxide, alumina, glass, or polysilicate. The metal oxide film constituting interference pigments 24a and 24b can also be materials other than titanium dioxide, such as zirconium oxide, zinc oxide, iron oxide, or tin oxide.

[0176] Interference pigments 24a and 24b are respectively injected with incident light E into the second color pattern layer 20, generating distinct interference lights 125a and 125b (first interference lights). That is, the wavelengths of interference lights 125a and 125b are different. Therefore, interference pigments 24a and 24b exhibit mixed colors. The proportions of each component of interference pigments 24a and 24b can be the same or different. Interference pigment 24a can be any pigment that generates monochromatic interference light 125a, the same monochromatic light exhibited by interference pigment 14. It should be noted that interference pigment 24b can also be any pigment that generates monochromatic interference light 126b, the same monochromatic light exhibited by interference pigment 14.

[0177] The total light transmittance of printed material 2 is, for example, 30% to 70%. The total light transmittance referred to here is the value obtained by measuring the total light transmittance using a spectrophotometer (e.g., Shimadzu UV-2100 spectrophotometer manufactured by Shimadzu Corporation). When the total light transmittance is 30% or higher, when printed material 2 is placed in front of an image, the image light makes the pattern printing layer 5 less visually discernible, allowing for clearer visual recognition of the image. When the total light transmittance is 70% or lower, even if the image is black, the pattern on the pattern printing layer 5 can be prevented from appearing dark.

[0178] Next, refer to Figure 13 and Figure 14The combination of colors in the pattern printing layer 5 is explained. Figure 13 (a) and (b) are schematic diagrams representing the combination of colors in the printing layer 5 of the pattern. Figure 13 (c) is a schematic diagram showing the combination of colors of the pattern printing layer 105 in the comparative embodiment. Figure 14 This is a schematic diagram illustrating a specific example of the color combination in the printing layer 5 of the pattern.

[0179] like Figure 13 As shown in (a), interference light of monochromatic "color A" is generated by including a monochromatic interference pigment of "color A" in the first color pattern layer 10. Mixed interference light of "color A" and "color B" is generated by including interference pigments of both monochromatic "color A" and monochromatic "color B" in the second color pattern layer 20. Color B is a different color from color A. Therefore, in the printed material 2, the pattern is represented by additively mixing the interference light of color A and the interference light of colors A and B.

[0180] Or, such as Figure 13 As shown in (b), monochromatic interference light of "color A" is generated by including a monochromatic interference pigment of "color A" in the second color pattern layer 20. Mixed interference light of "color A" and "color B" is generated by including interference pigments of both monochromatic "color A" and monochromatic "color B" in the first color pattern layer 10. Color B is a different color from color A. Therefore, in the printed material 2, the pattern is created by additively mixing the interference light of color A and the interference light of colors A and B.

[0181] exist Figure 14 In the example shown in (a), "gold" is used as color A of the first color pattern layer 10, "gold" is used as color A of the second color pattern layer 20, and "red" is used as color B of the second color pattern layer 20. The printed material 2 can represent a wood grain pattern using an additive mixture of gold and red. By using gold for the first color pattern layer 10, a light-colored wood grain can be represented. It should be noted that in this case, Figure 12 Interference pigments 14 and 24a shown are, for example, gold interference pigments (gold pearlescent pigments). Interference light 15 and 125a appear gold. Interference pigment 24b is, for example, a red interference pigment (red pearlescent pigment). Interference light 126b appears red.

[0182] exist Figure 14In the example shown in (b), "red" is used as color A of the first color pattern layer 10, "red" is used as color A of the second color pattern layer 20, and "gold" is used as color B of the second color pattern layer 20. The printed material 2 can represent the wood grain pattern by mixing red and gold additively. By using red as the first color pattern layer 10, a slightly reddish wood grain can be represented.

[0183] exist Figure 14 In the example shown in (c), "silver" is used as color A of the first color pattern layer 10, "silver" is used as color A of the second color pattern layer 20, and "gold" is used as color B of the second color pattern layer 20. Printed material 2 can represent a hairline pattern as a design using additive color mixing of silver and gold. By including gold in the second color pattern layer 20, the usual stainless steel hairline can be adjusted to a golden tone. It should be noted that... Figure 12 Interference pigments 14 and 24a shown are, for example, silver interference pigments (silver pearlescent pigments). Interference light 15 and 126a appear silver.

[0184] exist Figure 14 In the example shown in (d), "silver" is used as color A of the first color pattern layer 10, "silver" is used as color A of the second color pattern layer 20, and "red" is used as color B of the second color pattern layer 20. Printed material 2 can represent a hairline pattern as a design using additive color mixing of silver and red. By including red in the second color pattern layer 20, the stainless steel hairline can be adjusted to a bronze tone.

[0185] exist Figure 14 In the example shown in (e), "silver" is used as color A of the first color pattern layer 10, "gold" is used as color B of the first color pattern layer 10, and "silver" is used as color A of the second color pattern layer 20. Printed material 2 can represent a hairline pattern using additive color mixing of gold and silver. By including gold (or a color with gold undertones) in the first color pattern layer 10, a stronger emphasis on the gold tone can be achieved.

[0186] In the printed matter 2 of example 4-1 described above, either the first color pattern layer 10 or the second color pattern layer 20 contains interference pigments of multiple colors that generate interference light of mutually different colors A and B. Therefore, even with a smaller number of printing layers, a three-dimensional pattern representation can be achieved. Furthermore, in this printed matter 2, the pattern layer containing interference pigments that generate interference light of multiple colors can be either the first color pattern layer 10 or the second color pattern layer 20, thus simplifying color mixing and registration operations during printing. On the other hand, the other of the first color pattern layer 10 and the second color pattern layer 20 contains interference pigments that generate interference light of a monochromatic color A, the same as any one of the multiple interference pigments. Here, as a comparative example, such as... Figure 13 As shown in (c), an example is a printed material 102 in which a first color pattern layer 10 contains interference pigments of colors X and Y, and a second color pattern layer 20 contains interference pigments of color Z. For example, the configuration of the embodiment used for comparison is shown as in... Figure 14 In cases where the pattern is as described, the X, Y, and Z colors need to be adjusted, and the color matching and registration operations during printing are time-consuming. On the other hand, for those that can be... Figure 14 Patterns represented with fewer colors can be expressed using a single monochromatic color A, defined as the same color A in both the first color pattern layer 10 and the second color pattern layer 20. The intensity of color A can be varied to represent the pattern. Furthermore, when it is desired to emphasize the hue of color A, adjusting the hue using both the first color pattern layer 10 and the second color pattern layer 20 is easier than adjusting using only a single color pattern layer. Additionally, excessive interference pigment in a single color pattern layer reduces the strength of the coating film, but this reduction is prevented by using two color pattern layers 10 and 20. In summary, this simplifies color mixing and registration operations during printing.

[0187] In example 4, the structure of examples 1-2 to 1-4 from example 1 can also be adopted.

[0188] Printed materials and display devices are not limited to the examples mentioned above and can be adapted in a wide variety of other ways.

[0189] As a printed material, a sheet with a pattern layer and a hidden layer can also be used. The hidden layer is a layer that hides the color of the display device when no image is displayed, and transmits the displayed image when an image is displayed. The hidden layer is set to a visible light transmittance within a specified range. An opening is formed in the hidden layer. The hidden layer can be printed using an inkjet device, for example, using white ink containing titanium dioxide. Specifically, the hidden layer can be printed, for example, on the back of the pattern layer, using a solid white ink. As a printing method, an inkjet device can be exemplified, but it is not limited to this. As a printing method, in addition to inkjet printing, various printing methods can be used, such as gravure printing, offset printing, letterpress printing, flexographic printing, screen printing, electrostatic printing, etc. It should be noted that the printing method is not limited to the printing methods exemplified above. For example, any conventionally known image forming method can be used, such as hand-drawing, ink flow, transfer printing, photography, electrophotography, photosensitive resin, vacuum evaporation, chemical etching, thermochromic development, electrical discharge, etc. The pattern layer is formed on the surface of the hidden layer using a printing method, and is designed to give the printed material a distinctive design. The pattern layer only needs to have a certain degree of light transmittance and can be applied to the entire surface. Unlike the hidden layer, the pattern layer does not need to have openings, thus allowing for highly detailed designs. Specifically, the pattern layer can be printed using an inkjet printer, using inks such as cyan, magenta, yellow, and black to print the desired pattern. It should be noted that while an inkjet printer is shown as an example of a printing method for the pattern layer, it is not a limitation; similar to the hidden layer, various printing methods can be used. It should also be noted that any printed material that performs the above functions can be used, and a known structure can be appropriately employed.

[0190] Reference Figure 15 The concealment and visual recognizability of printed material 2 will be explained in more detail. It should be noted that, based on... Figure 15 The description is merely an example of usage to illustrate the nature of printed matter 2. Therefore, this disclosure is not limited to such usage. Figure 15 (a) and Figure 15 (b) is a diagram showing the light source 3 covered by the printed material 2 as viewed from the surface. Figure 15 (a) indicates the case when the power supply to light source 3 is disconnected. Figure 15 (b) indicates the state when the power to the light source 3 is turned on. A wood grain pattern is used as the design for the printed material 2. A display device is used as the light source 3. The area in the printed material 2 that covers the light source 3 is called the display area DE. Figure 15As shown in (a), when the power to the light source 3 is disconnected, the light source 3 is hidden by the pattern of the printed material 2. The printed material 2 does not hide the light source 3 using a light-blocking layer, but rather uses the layer itself, which has a light-transmitting pattern, to hide the light source 3. Therefore, the visual information V1 displayed in the display area DE becomes the pattern of the printed material 2. At this time, the observer cannot visually discern the display surface (black screen) and the outline of the light source 3 from the outside of the printed material 2. The visual information V1 that can be visually discerned in the display area DE and the visual information V2 that can be visually discerned in the area surrounding the display area DE are the same on the pattern of the printed material 2. Therefore, the observer cannot visually discern the presence of the light source 3 from the outside of the printed material 2.

[0191] like Figure 15 As shown in (b), when the power to the light source 3 is turned on, the light source 3 emits light, thereby projecting an arbitrary image GF onto the surface of the display. Here, the image GF is the letter "X" shown against a monochrome background. In the display area DE, the light of the image GF is transmitted from the printed material 2. Thus, the observer visually recognizes the transmitted light in the display area DE, thereby visually recognizing the image GF. Therefore, the visual information V3 displayed in the display area DE becomes the image GF projected by the light source 3. The content of the visual information V3 may include information not included in the content of the visual information V1. At this time, the visual information V3 may consist only of the light transmitted from the pattern on the printed material 2.

[0192] For example, as a comparative example, as a sheet that uses a light source to display the visual information "X", a sheet can be listed where a portion of the light-shielding layer is cut into the shape of "X" to form a light-transmitting layer (different from the printed material 2 of this embodiment). Regarding the visual information V3 obtained from such a sheet and a light source such as a lamp, the background portion is composed of the pattern on the surface of the light-shielding layer, and the "X" portion is composed of the light from the light source transmitted through the light-transmitting layer. Alternatively, as a comparative example, a sheet with a light-shielding layer formed in the shape of "X" in a portion of the light-transmitting layer can be listed. Regarding the visual information V3 obtained from such a sheet, the background portion is composed of the light from the light source transmitted through the light-transmitting layer, and the "X" portion is composed of the pattern on the surface of the light-shielding layer. In the comparative example, the visual information V3 is composed of the combination of light transmitted from the sheet and reflected light from the surface of the sheet at the portion where the light is shielded. Furthermore, when using a sheet like the one in the comparative example, even when the power to the light source is turned off, the "X" shape is still formed on the sheet itself in a visually perceptible form, therefore the visual information V1 also includes the content "X". Therefore, the content of visual information V3 becomes a state that is already included in visual information V1.

[0193] Use of printed material 2 Figure 15The visual information V3 in (b) differs from that of the comparative example, which uses a light-masking layer; the overall visual information is constituted by the light transmitted from the printed material 2. It should be noted that... Figure 15 Regarding the printed material 2 shown, the entire printed material 2 may be composed of a layer forming a light-transmitting pattern, or at least the entire display area DE may be composed of a layer forming a light-transmitting pattern. However, in the printed material 2, a light-shielding layer may be provided in a portion of the display area DE, or a light-shielding layer may be provided in a portion of the area outside the display area DE.

[0194] It should be noted that the following display device exists: a pattern is formed by pre-considering the content of the image from light source 3, and visual information V3 is formed by combining the pattern and the image when the power to light source 3 is turned on. Figure 15 In the example shown, the purpose is to make the presence of light source 3 undetectable from the outside. Figure 15 The visual information V3 in (b) differs from the visual information V3 formed through such combination. However, depending on the brightness of the image and the color of a portion of it, the pattern may be faintly reflected in the whole or a portion of the visual information V3. Furthermore, due to... Figure 15 The examples shown serve different purposes. Visual information V3 can sometimes be achieved by combining and coordinating patterns and images from the printed material 2. It should be noted that when a touch panel is used as the light source 3, the user operates the touch panel via the printed material 2. Therefore, the printed material 2 can be configured with a thickness, material, and hardness that do not obstruct touch panel operation.

[0195] Figure 16 This is a schematic side view of the display device 100 equipped with the liquid crystal panel 50 of this embodiment. In this embodiment, the case where the liquid crystal panel 50 is configured as a panel for displaying information such as map information, as is present in a car navigation system, will be described. Figure 16 As shown, the display device 100 includes a liquid crystal panel 50 and a display device 70. The liquid crystal panel 50 includes a printed material 2 and a light-transmitting substrate 60 for the panel (light-transmitting substrate). The printed material 2 can be a reference material. Figures 1 to 15 The printed matter 2 is described as follows. Therefore, the printed matter 2 has at least a translucent substrate 4 and a pattern printing layer 5.

[0196] The printed material 2 is bonded to surface 60a (one surface) of the translucent substrate 60 for the panel via bonding layer 61. Here, the translucent substrate 4 of the printed material 2 and the pattern printing layer 5 (see reference) Figure 1The opposite side is bonded to the surface 60a of the light-transmitting substrate 60 for the panel. Thus, the pattern printing layer 5 of the printed material 2 is disposed on one surface 60a of the light-transmitting substrate 60 for the panel. It should be noted that the bonding layer 61 is composed of a translucent tape or adhesive. As the bonding layer 61, translucent adhesives and tapes such as OCA (Optically Clear Adhesive) and optical double-sided tape can be used. The material of the light-transmitting substrate 60 for the panel can be the same type as that of the light-transmitting substrate 4 of the printed material 2. The display device 70 is disposed opposite to the light-transmitting substrate 60 for the panel relative to the printed material 2.

[0197] Figure 17 This is a front view of a display device 100 equipped with the liquid crystal panel 50 of this embodiment. Figure 18 It is along Figure 17 An enlarged sectional view of line XVIII-XVIII shown. (See attached image.) Figure 17 As shown, the liquid crystal panel 50 includes a display section 52, an outer peripheral section 54, and a plurality of openings 6. The other side 60b of the panel's light-transmitting substrate 60, opposite to the pattern printing layer 5 (see reference 60b) Figure 16 It includes: a display section 52 that is transmissive to light; and an outer peripheral section 54 on the outer periphery side of the display section 52. It should be noted that... Figure 17 In the middle, the display section 52 is shown in a lighter color than the outer periphery section 54.

[0198] In this embodiment, as an example, the configuration of the display unit 52 is described as rectangular when viewed from above. It should be noted that "viewing from above" refers to... Figure 17 The viewpoint relative to the liquid crystal panel 50 refers to the viewpoint from which the liquid crystal panel 50 is viewed in the thickness direction (plate thickness direction).

[0199] A processing unit 57 for which anti-glare treatment (AG treatment) is performed is formed in the display unit 52. In this embodiment, as an example, the case of performing anti-glare treatment using shot peening will be described. Regarding the processing conditions for shot peening, for example, glass beads are used as the projectile material, the ejection pressure of the glass beads is set to 2 [kgf], and the distance to the workpiece (transparent substrate 60 for panel) is set to 50 [cm]. The display unit 52 is formed on the transparent substrate 60 for panel, which is the material of the liquid crystal panel 50 (see reference). Figure 17 and Figure 18 Part of ).

[0200] In this embodiment, as an example, the configuration of the outer peripheral portion 54 is described as surrounding the display portion 52 when viewed from above in the light-transmitting substrate 60 for the panel. Therefore, the light-transmitting substrate 60 for the panel has: a region forming the light-transmitting display portion 52; and a region forming the outer peripheral portion 54, which is disposed on the outer periphery side of the display portion 52 when viewed from above. Furthermore, a resin layer 58, which has undergone molding processing using an ultraviolet-curable resin (UV resin), is formed on one surface of the light-transmitting substrate 60 where the outer peripheral portion 54 is formed. For example, a UV curing agent consisting primarily of an acrylic resin and being a slightly yellow transparent liquid is used as the UV curing resin. It should be noted that the molding process will be described later.

[0201] In addition, such as Figure 18 As shown, a peripheral chamfer 68 is formed using ultraviolet-curable resin UVR at the portion where the surface 60b of the light-transmitting substrate 60 is continuous with the outer peripheral surface 60c of the light-transmitting substrate 60. The peripheral chamfer 68A is formed as an arc (R) chamfer shape that makes the surface 60b of the light-transmitting substrate 60 continuous with the outer peripheral surface 60c of the light-transmitting substrate 60. It should be noted that the chamfer shape can be flat or curved.

[0202] It should be noted that, when viewed from above, text corresponding to the device using the liquid crystal panel 50 is displayed on the outer periphery 54. In this embodiment, the liquid crystal panel 50 is used as a display panel for a car navigation system. Therefore, the text printed on the outer periphery 54 includes, for example, "Power," "Home," "Menu," "Audio," and "Map." This text is drawn in the pattern printing layer 5 of the printed material 2 at a position corresponding to the outer periphery 54 when viewed from above.

[0203] Each opening 56 is formed on the outer periphery 54 of the light-transmitting substrate 60 for the panel. Furthermore, each opening 56 is formed by removing portions of the light-transmitting substrate 60 from which the opening 56 is formed through a punching or pressure processing performed after molding. The opening 56 also penetrates the printed material 2.

[0204] Therefore, each opening 56 extends through the outer periphery 54 in the thickness direction of the light-transmitting substrate 60 for the panel. Furthermore, each opening 56 is formed in the light-transmitting substrate 60 for the panel at the location of an inlet / outlet for a switch (button, knob, etc.) corresponding to the functions of a car navigation system, or a recording medium (optical disc, etc.) that records data (music, images, maps, etc.).

[0205] In addition, such as Figure 18As shown, an inner wall chamfer 68B is formed using ultraviolet-curable resin UVR in the portion where the surface 60b of the translucent substrate 60 for the panel is continuous with the interior of the opening 56. The inner wall chamfer 68B is formed into an arc-shaped chamfer that makes the surface 60b of the translucent substrate 60 for the panel continuous with the inner wall surface 56a of the opening 56.

[0206] (Molding process performed on the outer periphery 54) The molding process performed on the outer peripheral portion 54 will be described. The molding process is performed before removing the portion of the translucent substrate 60 for the panel from which the opening 56 is formed, and it is a process using ultraviolet-curable resin (UVR). Specifically, with a recess corresponding to the shape of the opening 56 formed in the portion of the translucent substrate 60 for the panel, UVR is applied to the portion forming the outer peripheral portion 54 on one surface 60b of the translucent substrate 60 for the panel. Then, with a template having a protrusion corresponding to the shape of the opening 56 placed on one surface 60b of the translucent substrate 60 coated with UVR, a roller or similar device is used to press the translucent substrate 60 for the panel onto the template. Next, the template is removed from the translucent substrate 60 for the panel, and the UVR coated on the translucent substrate 60 is irradiated with ultraviolet light to cure it. It should be noted that the protrusion formed on the template, corresponding to the shape of the opening 56, is formed with a rounded chamfer.

[0207] At this time, the ultraviolet-curable resin UVR coated on the surface 60b of the translucent substrate 60 for the panel is also coated on the interior of the recess corresponding to the shape of the opening 56, in addition to the surface 60b of the translucent substrate 60 for the panel. Therefore, when the portion of the translucent substrate 60 for the panel that forms the opening 56 is removed by a processing performed after molding, the ultraviolet-curable resin UVR coated on the interior of the recess corresponding to the shape of the opening 56 and cured is also removed. Therefore, an opening 56 is formed in the translucent substrate 60 for the panel, and an inner wall chamfered portion 68B formed by the cured ultraviolet-curable resin UVR is also formed.

[0208] The effective load roughness (Rk) of the portion forming the display section 52 is in the range of 5.6 [μm] or more and 7.2 [μm] or less, and the average height (Rc) is in the range of 8.0 [μm] or more and 10.2 [μm] or less. Furthermore, the average roughness (Ra) of the portion forming the display section 52 is in the range of 2.0 [μm] or more and 2.4 [μm] or less, and the root mean square roughness (Rq) is in the range of 2.5 [μm] or more and 3.0 [μm] or less. It should be noted that the average height (Rc) refers to the average height of the convex portion formed by peaks and valleys in the portion forming the display section 52. It should also be noted that other parameters related to the display section 52 can, for example, adopt values ​​known as those shown in Japanese Patent Application Publication No. 2019-66842.

[0209] It should be noted that, for example, known methods such as those shown in Japanese Patent Application Publication No. 2019-66842 can be used for the anti-glare treatment, molding, and processing of the opening 56 of the light-transmitting substrate 60 for the panel.

[0210] Next, the function / effect of the LCD panel 50 will be explained.

[0211] The other side 60b of the translucent substrate 60 for the panel, opposite to the pattern printing layer 5, has: a light-transmitting display portion 52; and an outer peripheral portion 54 on the outer periphery side of the display portion 52. An anti-glare treatment portion 57 is formed on the display portion 52, and a resin layer 58 formed on the outer peripheral portion 54 using a UV-curable resin through molding is formed. Therefore, since the anti-glare treatment portion 57 is formed on the display portion 52, external light reflection at the display portion 52 can be suppressed, preventing reflections. Furthermore, since the resin layer 58 formed on the outer peripheral portion 54 using a UV-curable resin through molding is formed, a decrease in gloss can be suppressed on the outer peripheral portion 54. The pattern printing layer 5 is disposed on one side 60a of the translucent substrate 60 for the panel and includes a pattern layer composed of multiple dots. Each dot contains an adhesive and multiple pigment flakes dispersed within the adhesive. The multiple pigment flakes are interference pigments. In this case, the pattern printing layer 5 can hide the display device 70 when the display is off. Thus, the image of the display device 70 is displayed on the display unit 52. On the other hand, the pattern printing layer 5 can hide the presence of the display device 70 by means of a pattern when the display device 70 is off. Therefore, the pattern of the pattern printing layer 5 is displayed on the display unit 52. In summary, the liquid crystal panel 50 can suppress external light reflection at the display unit 52 when the display device 70 is displaying, suppress the decrease in gloss outside the display unit 52, and hide the display device 70 when the display device 70 is off.

[0212] In the LCD panel 50, the anti-glare treatment can also be implemented using shot peening. This further suppresses external light reflection at the display section 52, which has the processing section 57, and prevents backlighting.

[0213] By using Figure 3 , Figure 6 The printed material 2 can also be a white pattern layer 40 on the liquid crystal panel 50. This white pattern layer 40 is disposed on the pattern printing layer 5 and is composed of multiple silver dots. Each of the multiple silver dots contains a silver binder 42 and multiple silver pigment flakes 43 dispersed within the silver binder 42. As a result, the first color pattern layer 10 and the second color pattern layer 20 have excellent color rendering properties, and the pattern printing layer 5 can have a pattern that gives a white impression.

[0214] By using Figure 6 The printed material 2 in the liquid crystal panel 50 may also include a transmissive smoke-colored printing layer 30 disposed on the outermost surface opposite to the light-transmitting substrate 60 of the panel, relative to the pattern printing layer 5. This results in superior color rendering of the first color pattern layer 10 and the second color pattern layer 20. Furthermore, since the transmissive smoke-colored printing layer 30 is transmissive, it effectively suppresses the decrease in visual recognizability of the image on the display device 1.

[0215] By using Figure 2As a pattern printing layer 5, in the liquid crystal panel 50, the pattern layer may also include: a first color pattern layer 10 disposed on one side 60a of the light-transmitting substrate 60, composed of a plurality of first color dots; and a second color pattern layer 20 disposed on the first color pattern layer 10, composed of a plurality of second color dots, each of the first color dots including a first color binder and a plurality of first color pigment flakes dispersed within the first color binder, each of the second color dots including a second color binder and a plurality of second color pigment flakes dispersed within the second color binder, either of the first color pigment flakes or the second color pigment flakes including multiple colors of interference pigments that are different from each other when interfering light as the reflected light side, and the other of the first color pigment flakes or the second color pigment flakes including an interference pigment that is different from the mixed color of the multiple colors of interference pigments included in either of the first color pigment flakes, and the interference light is mixed additively. Since the first color pattern layer 10 contains first interference pigments 14a and 14b, and the second color pattern layer 20 contains second interference pigment 24, a three-dimensional pattern can be achieved even with a relatively small number of printing layers. Furthermore, in printed matter 2, since the pattern layer containing interference pigments that generate mutually different interference lights is only the first color pattern layer 10 of the first color pattern layer and the second color pattern layer 20, the color matching and registration operations during printing can be simplified. Therefore, according to printed matter 2, a three-dimensional pattern can be achieved even with a relatively small number of printing layers, and the color matching and registration operations during printing can be simplified.

[0216] By adopting Figure 9 In the liquid crystal panel 50, the pattern layer 5, as the pattern printing layer, may also include: a first color pattern layer disposed on one surface 60a of the light-transmitting substrate 60, composed of a plurality of first color dots; and a second color pattern layer 20 disposed on the first color pattern layer 10, composed of a plurality of second color dots. Each first color dot includes a first color binder and a plurality of first color pigment flakes dispersed within the first color binder. Each second color dot includes a second color binder and a plurality of second color pigment flakes dispersed within the second color binder. The plurality of first color pigment flakes are first interference pigments that generate monochromatic first interference light, and the plurality of second color pigment flakes are second interference pigments that generate monochromatic second interference light with a color different from that of the first interference pigments. The first and second interference lights are mixed additively. For example, for patterns that can be represented with fewer colors, by limiting the interference pigments contained in the first color pattern layer 10 and the second color pattern layer 20 to monochromatic, the pattern can be represented using only the intensity of the monochromatic color. This simplifies color mixing and registration operations during printing. Therefore, this printed material simplifies color matching and plate registration during printing.

[0217] By using Figure 12As a pattern printing layer 5, in the liquid crystal panel 50, the pattern layer may also include: a first color pattern layer 10 disposed on one side 60a of the light-transmitting substrate 60, composed of a plurality of first color dots; and a second color pattern layer 20 disposed on the first color pattern layer 10, composed of a plurality of second color dots, each of the first color dots comprising a first color binder and a plurality of first color pigment flakes dispersed within the first color binder, each of the second color dots comprising a second color binder and a plurality of second color pigment flakes dispersed within the second color binder, any one of the plurality of first color pigment flakes and the plurality of second color pigment flakes being a first interference pigment that generates a plurality of colors of first interference light that are different from each other, and the other one of the plurality of first color pigment flakes and the plurality of second color pigment flakes being a second interference pigment that generates a monochromatic second interference light that is the same color as any one of the plurality of first interference pigments, and additive color mixing of the plurality of first interference lights and the second interference lights. Since either the first color pattern layer 10 or the second color pattern layer 20 contains interference pigments of multiple colors that generate different interference lights, a three-dimensional pattern representation can be achieved even with a smaller number of printing layers. Furthermore, in this liquid crystal panel 50, since the pattern layer containing interference pigments that generate multiple interference lights can be either the first color pattern layer 10 or the second color pattern layer 20, color matching and registration operations during printing can be simplified. On the other hand, the other of the first color pattern layer 10 and the second color pattern layer 20 contains a second interference pigment that generates a monochromatic second interference light of the same color as any of the multiple first interference pigments. For example, for patterns that can be represented with fewer colors, by limiting the second interference pigment to a monochromatic color identical to the first interference pigment, the intensity of the monochromatic color can be used to represent the pattern. Moreover, when it is desired to emphasize a particular color, it is easier to adjust that color using both the first color pattern layer 10 and the second color pattern layer 20 compared to adjusting using only one color pattern layer. Furthermore, if excessive interference pigment is added to a single color pattern layer, the strength of the coating film decreases. However, by using two color pattern layers, this decrease in strength can be suppressed. In summary, this simplifies color mixing and registration operations during printing.

[0218] As one aspect, the display device 100 includes the aforementioned liquid crystal panel 50 and display device 70.

[0219] The same function / effect as the liquid crystal panel 50 described above can be obtained in the display device 100.

[0220] This disclosure is not limited to the embodiments described above.

[0221] For example, it can also be used as follows Figure 19 The structure shown. In Figure 19In the example shown, the pattern printing layer 5 is directly formed on one side 60a of the translucent substrate 60 for the panel. In this case, the translucent substrate 60 for the panel also functions as the translucent substrate 4 of the printed material 2. It should be noted that... Figures 1 to 14 Any of the pattern printing layers 5 shown can be used as pattern printing layers 5, and a white pattern layer 40 and a translucent smoke color printing layer 30 can also be provided.

[0222] [Second Public Announcement] Previously, injection-molded articles formed from light-transmitting insert films made from molten material were known (see, for example, Japanese Patent Application Publication No. 2021-178431). This injection-molded article is used for the decoration of a center console. The driver can view the image displayed on the display device through the injection-molded article.

[0223] Here, when light is allowed to pass through, transparent resins such as acrylic, ABS (Acrylonitrile Butadiene Styrene), and polycarbonate are used for injection molding. When the insert film is decorated with a light-transmitting material, this light-transmitting decorative insert film allows light to pass through. When a display portion is formed by partially providing a light-blocking layer under the decorative layer, the display portion can be displayed on the decorative layer using light transmitted from the display portion when light is shone from the back. However, even when light is not shone from the back, the hue of the decorative layer on the display portion changes when light shines from the surface, thus creating a problem where the display portion is visible even when not displayed. Furthermore, even without a light-blocking layer, the overall hue of the pattern layer fades when light shines from the surface.

[0224] This disclosure is intended to solve the aforementioned problems and aims to provide an injection molding method, injection molded article, and display device that can suppress tonal variations in patterns related to the decoration of light-transmitting decorative insert films.

[0225] The inventors of this application have discovered that when transparent resin is injection molded onto an insert film decorated with a light-transmitting pattern, light transmitted from the surface of the light-transmitting decorative insert film is reflected at the boundary between the transparent resin and the air layer on the back side, thus illuminating the light-transmitting decorative insert film from the back. Furthermore, the inventors of this application have found that this phenomenon leads to: the pattern becoming less visible due to a fading of its color tone; the display area always being visible due to the different color tones of the pattern in the areas with and without the hidden layer, resulting in a decrease in design aesthetics; and, in the case where a display is mounted behind the injection-molded article, a decrease in the contrast of the image observed through the injection molding process.

[0226] [1] In this disclosure, as one aspect of the injection molding method, a light-transmitting decorative insert film with a visible light transmittance of 10% or more and 80% or less is prepared by decorating the film, a resin with a visible light transmittance of 40% or less is prepared by placing a pigment in a transparent resin, and an injection-molded article is formed by inserting the light-transmitting decorative insert film into a mold and injecting the resin into the mold.

[0227] In this injection molding method, resin is injection molded while a light-transmitting decorative insert film is inserted into a mold. Therefore, a resin layer obtained by injection molding is formed on the back side of the decorated light-transmitting decorative insert film having a transmittance of 10% to 80%. The resin layer obtained by injection molding is a resin layer adjusted by adding pigment to a transparent resin with a transmittance of 40% or less. Therefore, even if light irradiated from the surface of the light-transmitting decorative insert film is reflected at the air layer on the back side of the resin layer, the reflected light is reduced. Thus, the amount of light irradiating the light-transmitting decorative insert film from the back side is reduced, thereby suppressing the fading of the decorated pattern's hue. Furthermore, by reducing the transmittance of the resin used for injection molding, substrate concealment is improved, allowing the presence of a display device to be hidden even if it is internally located. Moreover, by using a smoke-colored resin for injection molding, the concealment layer and coloring layer of the light-transmitting decorative insert film itself can be eliminated.

[0228] [2] In the injection molding method described in [1] above, the pigment may also be carbon black. In this case, by adding an appropriate amount of carbon to the transparent resin, the resin used for injection molding can be made to have a gray smoke color with a transmittance of less than 40%.

[0229] [3] In the injection molding method described in [1] or [2] above, the pigment may also be an inorganic or organic coloring pigment. Thus, by adding color to the smoke-colored resin, the hue of the light-transmitting decorative insert film can be controlled.

[0230] [4] As another aspect, this disclosure relates to injection-molded articles. These injection-molded articles are formed by any one of the injection molding methods described in [1] to [3] above. In this case, injection-molded articles can provide an injection-molded article in which the hue of the pattern of the light-transmitting decorative insert film does not fade due to back reflection.

[0231] [7] The display device includes the injection-molded article and the display device described in [4] above. In this case, the fading of the pattern of the light-transmitting decorative insert film can be suppressed, and the display device can be hidden.

[0232] According to this disclosure, an injection molding method, an injection molded article, and a display device can be provided, which can suppress color variations of patterns related to the decoration of light-transmitting decorative insert films.

[0233] Hereinafter, specific examples of the injection molding method, injection molded article, and display device according to embodiments of the present disclosure will be described with reference to the accompanying drawings. It should be noted that the present disclosure is not limited to these examples, but is illustrated by the claims, which are intended to include all modifications within the meaning and scope equivalent to the claims. In the following description, the same reference numerals are used to refer to the same elements in the description of the drawings, and repeated descriptions are omitted.

[0234] Figure 20 This is a cross-sectional view schematically illustrating an injection-molded article 10101 according to an embodiment of the present disclosure. Figure 21 This is a schematic cross-sectional view of the display device 100 according to this embodiment. Figure 20 As shown, the injection-molded article 10101 has a light-transmitting decorative insert film 122 and a resin layer 103. As... Figure 21 As shown in (a), the display device 100 includes an injection-molded article 101 and a display device 104.

[0235] The injection-molded article 101 is disposed in front of the display device 104, which serves as a light source (between the viewer and the display device 104). The display device 100 is configured to conceal the display device 104 using the injection-molded article 101. The injection-molded article 101 is fully transmissive. Therefore, when the power to the display device 104 is turned on, the viewer can visually recognize the light transmitted from the display device 104 through the injection-molded article 101, and when the power to the display device 104 is turned off, the viewer can visually recognize the pattern displayed by the injection-molded article 101. The injection-molded article 101 is curved such that its outer peripheral portion 101b, which is located near the center of the display device 104, extends outward toward the rear side (the display device 104 side) as it extends outward. It should be noted that in this embodiment, the outer peripheral portion 101b is curved and inclined relative to the central portion 101a, but it may also be curved in an arc shape.

[0236] The light-transmitting decorative insert film 122 is a sheet used to display patterns. The visible light transmittance of the light-transmitting decorative insert film 122 is preferably 10% or more and 80% or less. It should be noted that, without the hidden layer 107 described later, the transmittance of the light-transmitting decorative insert film 122 can be 70% or more. The visible light transmittance of the light-transmitting decorative insert film 122 is 10% or more, which easily allows display devices (see reference) to display patterns. Figure 23The higher the transmittance of the light-transmitting decorative insert film 122, the more light from the back side can pass through, which is therefore preferred. It should be noted that the transmittance in this specification refers, for example, to the value of visible light transmittance obtained by measuring the transmittance using a spectrophotometer (e.g., Shimadzu Corporation, UV-2100 spectrophotometer).

[0237] The light-transmitting decorative insert film 122 comprises a film 125 and a decorative printing layer 108. The light-transmitting decorative insert film 122 is formed by decorating the film 125. The decorative printing layer 108 is formed by printing on the film 125. Figure 22 This is a cross-sectional view showing an example of the layer composition of the light-transmitting decorative insert film 122. (See example...) Figure 22 As shown, Figure 22 As shown, the decorative printing layer 108 may have a pattern layer 106 and a hidden layer 107. However, the light-transmitting decorative insert film 122 can be any light-transmitting decorative film, and its structure is not particularly limited. For example, a resin layer 103 can be used instead of the hidden layer, thereby eliminating the need for the hidden layer 107 itself in the light-transmitting decorative insert film 122. It should be noted that the hidden layer 107 may also not be a layer formed by printing, but rather an open-cell color film.

[0238] Film 125 is a substrate with visible light transmittance. Film 125 is a moldable material. Film 125 can be made of highly moldable materials such as acrylic or acrylic / polycarbonate that will not crack or break during molding, but the material is not particularly limited as long as it is moldable. The thickness of film 125 is, for example, 25μm to 250μm. It should be noted that, as needed, a hard coating, anti-fingerprint layer, anti-reflective layer, etc., can also be provided on the surface side of film 125 (the side opposite to pattern layer 106). However, the surface layer uses a material that will not stretch and crack during molding. The functional layer on the surface side can also be a post-curing type that is cured by UV exposure after molding. A light-transmitting decorative printing is performed on the back side of film 125 (the side of pattern layer 106).

[0239] Pattern layer 106 is a layer that forms the pattern represented by the light-transmitting decorative insert film 122. The pattern of pattern layer 106 is a pattern that appears on the surface of the decorative sheet when the power to the display device 104 is turned off; for example, it can be a wood grain pattern, an abstract pattern, etc. Pattern layer 106 can be formed by printing on film 125. The printing method is not limited, such as gravure printing, inkjet printing, screen printing, offset printing, etc. The material of the decorative ink used for printing can be inorganic pigment, organic pigment, or interference pigment; the material is not limited. The thickness of pattern layer 106 is, for example, from 1 μm to 100 μm.

[0240] The hidden layer 107 is a layer that hides the display device 104 when the power of the display device 104 is turned off and determines the tone of the pattern. When the pattern layer 106 is an interference pigment, in order to achieve good color development, the hidden layer 107 uses black or gray. However, when the pattern layer 106 uses pigments such as inorganic pigments, if black or gray is used, it is difficult to see the pattern. Therefore, the hidden layer 107 preferably uses bright colors such as white. When the pattern is a wood grain, the hidden layer 107 can change the tone with a color in the tea color system. The substrate hiding property of the hidden layer is preferably set to the minimum necessary to improve the transmittance.

[0241] The hidden layer 107 hides the display device 104 together with the resin layer 103 described later. Therefore, the hiding property of the hidden layer 107 itself can be suppressed to be low. The hidden layer 107 can be formed, for example, by printing a solid layer on the pattern layer 106. As the hidden layer 107, for example, a white solid layer can be printed. The white solid layer has the effects of controlling the tone of the pattern and preventing the pattern from sinking into the black of the substrate and becoming difficult to see. The hiding property can be reduced by printing thinly by reducing the printing density of the white solid printing. As the hidden layer 107, for example, a black solid layer can also be printed. The black solid layer has the effects of making the color development of the interference pigment easy to see and hiding the substrate. The hidden layer as the black solid layer can reduce the substrate hiding property by printing thinly by reducing the printing density, or the hidden layer itself can be omitted. The printing is intaglio printing, inkjet printing, screen printing, offset printing, etc., and the printing method is not limited. It should be noted that a hidden layer can also be further formed locally on the hidden layer 107, and a part with transmittance and a part without transmittance are provided. It is also possible to make the printing density at the boundary between the part without transmittance and the part with transmittance change gradually without obvious differences. The hidden layer 107 can be a layer formed by printing, or a colored film or a colored sheet. It should be noted that similarly, a hidden layer can also be further formed locally on the resin layer 103.

[0242] It should be noted that by using the resin layer 103 instead of the hidden layer and the base color layer (corresponding to "color original reflection" in Japanese) that determines the tone of the pattern, the hidden layer and the color solid layer that controls the tone can be omitted from the composition of the light-transmissive decorative insert film 122. For the hidden layer 107, it can also be formed not by printing but by laminating a colored film. For the colored film, the thinner the film thickness, the higher the light transmittance. A top coat can also be provided on the surface of the light-transmissive decorative insert film 122. Embossing can also be performed on the surface of the film 125. For printing, both surface printing and back printing are possible.

[0243] Here, refer to Figure 23 An example of the specific structure of the pattern layer 106 will be described. Figure 23The pattern layer 106 shown includes: a first color pattern layer 10 disposed on one surface 4a of the film 125; and a second color pattern layer 20 disposed on the first color pattern layer 10. It should be noted that... Figure 23 The pattern layer 106 shown has a structure that is similar to Figure 2 The pattern shown is printed on layer 5 with the same theme, so the description is omitted.

[0244] like Figure 20 As shown, the resin layer 103 has the function of attenuating light transmitted from the near-front side of the viewpoint through the light-transmitting decorative insert film 122. The resin layer 103 is disposed on the back side of the light-transmitting decorative insert film 122. In the display device 100, the resin layer 103 is disposed on the surface side of the display device 104. The resin layer 103 is a colored transparent resin molding layer with a specified transmittance. The transmittance of the resin layer 103 can be 10% or more, and more preferably 18% or more. Furthermore, the transmittance of the resin layer 103 can be 40% or less, and more preferably 20% or less. In order to improve the substrate concealment, the transmittance of the resin layer 103 is preferably 20% or less. The lower the transmittance, the more back-side reflected light is reduced. Therefore, when the brightness of the display device 104 disposed on the back side is high, the transmittance of the resin layer 103 is preferably set to be low.

[0245] The resin layer 103 is formed by injection molding while the light-transmitting decorative insert film 122 is inserted into a mold. The resin layer 103 is composed of a smoke-colored resin with a specified transmittance by adding an appropriate amount of pigment to a transparent resin. As the resin for injection molding, resin particles with pre-added pigment and adjusted transmittance can be used. By setting the resin layer 103 to a smoke color, the amount of transmitted light reflected at the boundary between the back side of the resin layer 103 and the air layer after injection molding can be reduced, thus reducing the amount of transmitted light illuminating the pattern of the light-transmitting decorative insert film 122 from the back side.

[0246] The transparent resin of resin layer 103 can be any transparent resin such as acrylic, polycarbonate, or ABS; the material is not limited. The pigment can be carbon black. Alternatively, the pigment can be an inorganic or organic coloring pigment. For example, it is preferable to use a resin colored with carbon black to produce a gray-smoke color, but to control the hue of the pattern, a brown pigment can be added to produce a brown-smoke color. However, when producing a smoke color, the hue of the liquid crystal changes when viewed through the liquid crystal screen depending on the pigment used; therefore, it is best to adjust the RGB (red, green, blue) values. If the liquid crystal image appears more blue, it is preferable to reduce the gain and bias of B (blue). If it appears more red, it is preferable to reduce the gain and bias of R (red). It should be noted that the pigment is preferably inorganic, but it can also be organic, or a dye can be used. The resin transmittance of resin layer 103 depends on the resin thickness; therefore, the transmittance of the actual injection-molded smoke-colored resin is measured, and an appropriate amount of pigment is added to the injection molding resin in a manner that achieves the specified transmittance.

[0247] The resin layer 103 is colored. The color of the resin layer 103 is not particularly limited and can be any color. When displaying an image on the display device 104, gray is preferred. The resin layer 103 can be a resin layer of various colors, and can be set to a preferred wall color; therefore, the color is not limited to the colors mentioned above. The color of the resin layer 103 can control the hue of the light-transmitting decorative insert film 122. For example, at the time when the display device 104 is off, the pattern of the pattern layer 106 of the light-transmitting decorative insert film 122 can be visually recognized in both the portion where the display device 104 is present and the portion where the display device 104 is not present. At this time, the hue of the pattern in the pattern layer 106 is controlled by the color of the resin layer 103. For example, if the color of the resin layer 103 is brown and the pattern in the pattern layer 106 is wood grain, the brown wood grain can be visually recognized.

[0248] The lower the transmittance of the resin layer 103, the greater the effect of reducing reflected light. However, it is preferable to optimize the transmittance of the resin layer 103 by considering factors such as the brightness of the display device 104. If the thickness of the resin layer 103 is changed, the transmittance of that portion will change. Therefore, it is preferable to keep the thickness constant, but the thickness can also be changed. If the color tone changes when the thickness is changed, it is preferable to attach a black sheet to the back side or to apply a coating to adjust the color tone. If the resin layer 103 affects the color tone of the image on the display device 104, it is preferable to adjust the color tone by adjusting the RGB gain and bias of the display device 104. By adjusting the RGB bias and gain of the display device 104 of the display device 100 according to the color tone of the resin layer 103, white displays can appear whiter through the resin layer 103.

[0249] Next, refer to Figure 24 and Figure 25 The injection molding method of this embodiment will be described. Figure 24 This is a process diagram illustrating an example of the steps in an injection molding process. Figure 25 This is a schematic diagram illustrating the steps of an injection molding process. For example... Figure 24 As shown, firstly, by decorating the film 125, a light-transmitting decorative insert film 122 with a visible light transmittance of 10% or more and 80% or less is prepared (step S10). Then, by adding pigment to a transparent resin, an injection molding resin 140 with a visible light transmittance of 40% or less is prepared (see reference). Figure 25 (e) (step S20). For example, acrylic granules for injection molding are mixed with carbon pigments and stirred while being melted with heat to produce an acrylic resin for smoke color. At this time, the amount of pigment is adjusted in a way that achieves a specified transmittance.

[0250] Next, the light-transmitting decorative insert film 122 is formed (step S30). In step S30, the light-transmitting decorative insert film 122 is formed in a manner that achieves the desired shape for insert forming. Specifically, firstly, as... Figure 26 As shown in (a), the flat, light-transmitting decorative insert film 122 is heated using heater 141. Then, as... Figure 26 As shown in (b), the pre-forming of the light-transmitting decorative insert film 122 after heating is performed by vacuum compression molding. Thus, the heated light-transmitting decorative insert film 122 takes on a shape corresponding to the forming surface of the mold 142. Here, the formed light-transmitting decorative insert film 122 is deformed in a manner that forms two peaks. Figure 26 As shown in (c), the unwanted portion is cut from the formed light-transmitting decorative insert film 122.

[0251] Next, as Figure 24 As shown, the light-transmitting decorative insert film 122 is inserted relative to the injection molding molds 150A and 150B (step S40). Specifically, as... Figure 25 As shown in (d), a heat-transmitting decorative insert film 122 is inserted into the molding space between mold 150A and mold 150B. A flow path 151 for supplying resin 140 for injection molding is formed on the back side of mold 150A. The flow path 151 opens at the molding surface of mold 150A.

[0252] Next, as Figure 24 As shown, the injection-molded article 101 is formed by injection molding resin 140 into molds 150A and 150B into which the light-transmitting decorative insert film 122 is inserted (step S40). Figure 25As shown in (e), resin 140 is injected into the back side of the light-transmitting decorative insert film 122 through the flow path 151 of the mold 150A. Thus, a resin layer 103 is formed on the back side of the light-transmitting decorative insert film 122 by injection molding. After molding, as shown... Figure 25 As shown in (f), open molds 150A and 150B and take out injection molded product 101.

[0253] For example, the transmittance of the smoke-colored acrylic resin 140 used for injection molding is adjusted to 20%, and the transmittance of the injection-molded article 101 obtained by injection molding on the light-transmitting decorative insert film 122 with a transmittance of 50% is 10%. Alternatively, the back side of the injection-molded article 101, excluding the window portion 135 of the display device 104, can be coated with black. At this time, the injection-molded article 101 covers the display device 104 (see reference 104). Figure 21 (a) can hide the display device 104.

[0254] Next, the function / effect of the injection molding method, the injection molded article 101, and the display device 100 of this embodiment will be explained.

[0255] First, refer to Figure 26 and Figure 27 The injection-molded article 200 and the display device 300 of the comparative examples will be described. For example... Figure 26 As shown, the comparative example injection-molded article 200 has a light-transmitting decorative insert film 122 and a transparent resin layer 132, but does not have a resin layer 103. Unlike resin layer 103, the transparent resin layer 132 does not have its transmittance adjusted by adding pigments; its transmittance is 93%. Figure 27 As shown, in the comparative example, the display device 300 covers the display device 104 with an injection-molded article 200. A black printed portion 9, which is coated in black except for the window portion 135 for the display device 104, is formed at the boundary between the light-transmitting decorative layer insert film 122 and the transparent resin layer 132.

[0256] In injection molded part 200, such as Figure 26 and Figure 27As shown, when there is an air layer on the back side of the transparent resin layer 132, incident light LIN incident from the surface of the light-transmitting decorative insert film 122 is reflected on the back side of the transparent resin layer 132. As a result, reflected light LOUT1 at the air layer interface illuminates the light-transmitting decorative insert film 122 from the back side, causing the color tone of the light-transmitting decorative insert film 122 to become lighter. This phenomenon leads to the pattern becoming unclear due to the lighter color tone of the pattern on the light-transmitting decorative insert film 122, or a decrease in the contrast of the image on the display device 104 observed through the injection-molded article 200. Furthermore, when the display device 104 is off, the pattern layer is visible on the surface of the injection-molded article 200, but in the case of the transparent resin layer 132, the reflected light LOUT1 at the display device 104 is brighter than the reflected light LOUT2 at the black printing portion 9. Therefore, the color tone of the pattern on the window portion 135 appears lighter, and the presence of the window portion 135 can be seen even when the display device 104 is not lit (see reference). Figure 27 (b)

[0257] In contrast, in the injection molding method of this embodiment, resin 140 is injection molded while the light-transmitting decorative insert film 122 is inserted into molds 150A and 150B. Therefore, a resin layer 103 obtained by injection molding is formed on the back side of the decorated light-transmitting decorative insert film 122 having a transmittance of 10% or more and 80% or less. The resin layer 103 obtained by injection molding is a resin layer adjusted by adding pigment to a transparent resin with a transmittance of 40% or less. Therefore, even if light irradiated from the surface of the light-transmitting decorative insert film 122 is reflected at the air layer on the back side of the resin layer 103, the reflected light is reduced. Therefore, the amount of light irradiating the light-transmitting decorative insert film 122 from the back side is reduced, thus suppressing the fading of the decorated pattern's hue. Furthermore, by reducing the transmittance of the resin used for injection molding, the substrate concealment is improved, and the presence of the display device 104 can be hidden even if it is internally located. Furthermore, by setting the resin used for injection molding to a smoke-colored resin, the hidden layer and coloring layer of the light-transmitting decorative insert film 122 itself can be eliminated.

[0258] like Figure 21 As shown in (a), when resin layer 103 is used, the difference in brightness between the reflected light LOUT1 at the window portion 135 corresponding to the display device 104 and the reflected light LOUT2 at the black printing portion 9 is small. Therefore, the hue of the window portion 135 does not become brighter (see reference). Figure 21 (b) Therefore, the presence of the window portion 135 when the display device 104 is closed can be hidden. In addition, in the case of an image display device such as the display device 104, a decrease in the contrast of the image projected on the surface of the injection molded article 101 can be prevented.

[0259] In injection molding, regarding pigments, multiple colors of pigments can be mixed, or a single-color pigment can be used. To eliminate color unevenness, the raw material is preferably a single color and black. The single-color pigment can be carbon black. In this case, by adding an appropriate amount of carbon to the transparent resin, the resin 140 for injection molding can be made into a grayish-smoky color with a transmittance of less than 40%.

[0260] In injection molding, the pigment can be either inorganic or organic coloring pigment. Therefore, by adding color to the smoke-colored resin, the hue of the light-transmitting decorative insert film 122 can be controlled.

[0261] The injection-molded article 101 of this embodiment is formed by the injection molding method described above. In this case, the injection-molded article 101 can provide an injection-molded article 101 in which the color tone of the pattern of the light-transmitting decorative insert film 122 is not faded due to back reflection.

[0262] The display device 100 includes the injection-molded article 101 and the display device 104 described above. In this case, the fading of the pattern on the light-transmitting decorative insert film 122 can be suppressed, and the display device 104 can be hidden.

[0263] It should be noted that when the pattern layer 106 of the light-transmitting decorative insert film 122 is formed by printing with interference pigment, the interference pigment itself has no color, and the light transmitted from the back is not affected by the color of the pattern. Therefore, the image of the display device 104 on the back can be transmitted in a way that is not covered by the color of the pattern. Even without the use of interference pigment, if the hidden layer 107 does not block light, the pattern layer 106 can still be light-transmitting, but the pattern will cover the image, so the image cannot be clearly projected. However, even if the design patterns, numbers, and text information such as switches are covered by the pattern, there is no problem with visual recognition. The ink material of the pattern layer 106 is preferably selected according to the application. In the case of interference pigment, in order to achieve good color rendering, the hidden layer 107 can be formed in a gray-smoke color, but the hidden layer can also be replaced by setting the resin of the injection-molded resin layer 103 to a gray-smoke color.

[0264] The injection-molded articles, display devices, and display methods disclosed herein are not limited to the embodiments described above, and can be modified in various other ways.

[0265] For example, the second color pattern layer may contain multiple colors of first interference pigments that generate mutually different first interference light, and the first color pattern layer may contain a second interference pigment that generates monochromatic second interference light that differs from the mixed colors presented by the multiple first interference pigments. Furthermore, in the above embodiments, the first color pigment sheet is a two-color first interference pigment, but the first color pigment sheet may also be a three-color or more first interference pigment.

[0266] The shape of injection molded parts is not limited to, for example Figure 20 The shape shown. For example, the back side of the resin layer 103 can also be formed as a flat surface without bending.

[0267] [Third Public Announcement] Conventionally, decorative panels used for walls and other surfaces have been known to include a substrate and a printed layer on the surface of the substrate, the printed layer having patterns such as wood grain or abstract designs. These patterns are always visually recognizable on a wall surface where the decorative panel is installed. Furthermore, it is required that the visually recognizable pattern changes depending on whether a light source is used on the back side of the decorative panel.

[0268] For example, Japanese Patent No. 5725581 discloses a printed material with a display device having a light source under a decorative sheet. When the light source is off, the pattern of reflected light based on a printed layer composed of RGB interference pigments can be visually recognized. On the other hand, when the light source is on, the pattern of transmitted light based on a CMY printed layer can be visually recognized (see Japanese Patent No. 5725581). Figure 11 Furthermore, Japanese Patent No. 6839319 discloses a decorative sheet having two patterns using interference pigments. The patterns are visually recognizable when the image on the back side is not displayed, and the image on the back side is visually recognizable when it is displayed (see Japanese Patent No. 6839319). Figure 1 , 2 ).

[0269] The printed matter disclosed in Japanese Patent No. 5725581 includes a first color pattern layer, a second color pattern layer, and a third color pattern layer, wherein the pigment flakes contained in each pattern layer are any one of red interference pigment, green interference pigment, and blue interference pigment. In this printed matter, the number of pattern layers is increased in order to make the colors more vibrant than in conventional printing. The decorative sheet disclosed in Japanese Patent No. 6839319 includes: a first pattern layer containing multiple interference pigments, forming a first color mixture; and a second pattern layer containing multiple interference pigments, forming a second color mixture different from the first color mixture. In this decorative sheet, since the first and second pattern layers each contain multiple interference pigments, the color mixing and registration operations during printing may become more complicated.

[0270] This disclosure is intended to solve the aforementioned problems and aims to provide a molded article that can display a three-dimensional pattern even with a small number of printing layers of decorative sheets, and to achieve excellent manufacturing efficiency by simplifying the color matching and registration operations when printing decorative sheets.

[0271] One aspect of this disclosure includes the following [1] to [9].

[0272] [1] A molded article comprising a resin molded body and a decorative sheet disposed on the surface of the resin molded body, the resin molded body and the decorative sheet being visible light transmissive, the decorative sheet comprising a substrate layer and a pattern printing layer, the pattern printing layer comprising: a first color pattern layer disposed on one surface of the substrate layer and composed of a plurality of first color dots; and a second color pattern layer disposed on the first color pattern layer and composed of a plurality of second color dots, each of the plurality of first color dots comprising a first color binder and a plurality of first color pigment flakes dispersed within the first color binder, each of the plurality of second color dots comprising a second color binder and a plurality of second color pigment flakes dispersed within the second color binder, wherein either of the plurality of first color pigment flakes and the plurality of second color pigment flakes is a first interference pigment that generates a plurality of colors of first interference light that are different from each other, and the other of the plurality of first color pigment flakes and the plurality of second color pigment flakes is a second interference pigment that generates a monochromatic second interference light that is different from the mixed color presented by the plurality of first interference pigments, wherein the plurality of first interference lights and the second interference lights are additively mixed.

[0273] [2] The molded article according to [1], wherein the molded article is an injection molded article.

[0274] [3] The molded article according to [1], wherein the molded article is a TOM molded article.

[0275] [4] A molded article, wherein the molded article is formed only of a decorative sheet, the decorative sheet being visible light transmissive, the decorative sheet having a substrate layer and a pattern printing layer, the pattern printing layer having: a first color pattern layer disposed on one surface of the substrate layer, comprising a plurality of first color dots; and a second color pattern layer disposed on the first color pattern layer, comprising a plurality of second color dots, each of the plurality of first color dots comprising a first color binder and a plurality of first color pigment flakes dispersed within the first color binder, each of the plurality of second color dots comprising a second color binder and a plurality of second color pigment flakes dispersed within the second color binder, either of the plurality of first color pigment flakes and the plurality of second color pigment flakes being first interference pigments that generate multiple colors of first interference light that are different from each other, and the other of the plurality of first color pigment flakes and the plurality of second color pigment flakes being second interference pigments that generate monochromatic second interference light that is different from the mixed color presented by the plurality of first interference pigments, wherein the plurality of first interference light and the second interference light are additively mixed.

[0276] [5] The molded article according to any one of [1] to [4], wherein the decorative piece further comprises a white pattern layer disposed on the second color pattern layer and composed of a plurality of silver dots, each of the plurality of silver dots comprising a silver adhesive and a plurality of silver pigment flakes dispersed within the silver adhesive.

[0277] [6] A molded article according to any one of [1] to [5], wherein the decorative piece further comprises a transmissive smoke-colored printing layer disposed on the outermost surface opposite to the substrate layer relative to the pattern printing layer.

[0278] [7] A molded article according to any one of [1] to [6], wherein the first interference pigment and the second interference pigment each comprise titanium dioxide-coated mica with a particle size of 25 μm or more and 60 μm or less.

[0279] [8] A molded article according to any one of [1] to [7], wherein, relative to 100 parts by weight of the first color adhesive, the content of the plurality of first color pigment flakes is 0.5 parts by weight or more and 20 parts by weight or less, and relative to 100 parts by weight of the second color adhesive, the content of the plurality of second color pigment flakes is 0.5 parts by weight or more and 20 parts by weight or less.

[0280] [9] A display device comprising a molded article and a light source as described in any one of [1] to [8].

[0281]

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

[0282] According to this disclosure, a molded article can be provided that can display a three-dimensional pattern even with a small number of printing layers of decorative sheets, and the manufacturing efficiency is excellent by simplifying the color matching and plate registration operations when printing decorative sheets.

[0283] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. In the following description, the same reference numerals will be used to denote the same elements, and repeated descriptions will be omitted. It should be noted that the drawings are schematic; for example, the relationship between thickness and planar dimensions, and the ratio of thicknesses of each layer, may differ from reality. Furthermore, the embodiments shown below illustrate configurations for embodying the technical concept of the present disclosure; the materials, shapes, structures, etc., of the constituent components are not limited to those described below.

[0284] [Implementation Method 3-1] Display devices, molded products Figure 28 This is a schematic cross-sectional view illustrating the display device of embodiment 3-1. (Schematic representation) Figure 28 The cross-sectional view of the pattern printing layer of the printed material (decorative sheet) of the display device shown is as described above. Figure 2 .like Figure 28 As shown, the display device 1 includes a molded article 7 and a light source 3. The molded article 7 includes a printed material 2 (decorative sheet) and a resin molded body 206. The printed material 2 (decorative sheet) is a sheet used to display a pattern, and includes a light-transmitting substrate 4 (substrate layer), a pattern printing layer 5, and a transmissive smoke-colored printing layer 30. The printed material 2 (decorative sheet) is disposed on the surface of the resin molded body 206 and positioned in front of the light source 3 (between the visual observer and the light source 3). The resin molded body 206 and the printed material 2 (decorative sheet) are visible light transmissive. Therefore, when the power to the light source 3 is turned on, the visual observer can visually recognize the light transmitted from the light source 3 through the resin molded body 206 and the printed material 2 (decorative sheet), and when the power to the light source 3 is turned off, the visual observer can visually recognize the pattern displayed on the printed material 2 (decorative sheet). The light source 3 is, for example, a display device.

[0285] <Resin Molded Body> The resin molded body is translucent with visible light. The resin constituting the resin molded body can be a resin that is translucent with visible light; examples include PET, PMMA, polyethylene, polypropylene, and nylon. From the viewpoint of easily obtaining molded articles with complex shapes, the resin molded body can contain a thermoplastic resin that is translucent with visible light.

[0286] Resin molded parts may also contain components other than resin. They may also contain additives such as fillers, antistatic agents, UV absorbers, plasticizers, and lubricants.

[0287] <Decorative Piece> The light-transmitting substrate 4 (substrate layer) is a substrate that is translucent to visible light. The light-transmitting substrate 4 (substrate layer) may include, for example, a resin that is translucent to visible light. Examples of resins that are translucent to visible light include PET, PMMA, polyethylene, polypropylene, nylon, polycarbonate (PC), ABS, etc. From the viewpoint of easily obtaining molded articles with complex shapes, the resin that is translucent to visible light may include a thermoplastic resin that is translucent to visible light.

[0288] From the viewpoint that the printed material 2 (decorative sheet) has sufficient strength, the thickness of the translucent substrate 4 (substrate layer) can be 25 μm or more, 50 μm or more, or 75 μm or more. From the viewpoint of preventing the printed material 2 (decorative sheet) from becoming too thick, the thickness of the translucent substrate 4 (substrate layer) can be 500 μm or less, 350 μm or less, or 250 μm or less. A surface protective layer may also be provided on the surface side of the translucent substrate 4 (substrate layer) (the side opposite to the pattern printing layer 5).

[0289] The pattern printing layer 5 is a layer that displays the pattern of the printed material 2 (decorative piece). The pattern printing layer 5 includes: a first color pattern layer 10 disposed on one surface 4a of the translucent substrate 4 (substrate layer); and a second color pattern layer 20 disposed on the first color pattern layer 10. Regarding the printed material 2 (decorative piece), the application is based on the first disclosure... Figure 2 The composition described is the same. It should be noted that, based on the molded product 7 with printed material 2 (decorative sheet), even if the number of printing layers of the decorative sheet is small, a three-dimensional pattern can be expressed, and the manufacturing efficiency is excellent by simplifying the color matching and registration operations when printing the decorative sheet.

[0290] In embodiment 3-1, the printed material 2 (decorative sheet) of the molded article 7 includes a transmissive smoke printing layer 30 disposed on the second color pattern layer 20. As a result, the color rendering properties of the first color pattern layer 10 and the second color pattern layer 20 are superior. Moreover, since the transmissive smoke printing layer 30 is transmissive, the decrease in visual recognizability of the image on the display device 1 can be effectively suppressed.

[0291] In embodiment 3-1, the first interference pigments 14a and 14b and the second interference pigment 24 each contain titanium dioxide-coated mica with a particle size of 25 μm or more and 60 μm or less. By containing titanium dioxide-coated mica with a particle size of 25 μm or more, the transmittance and color development of the pattern printing layer 5 are good. By containing titanium dioxide-coated mica with a particle size of 60 μm or less, the decrease in resolution and grayscale of the pattern printing layer 5 can be suppressed.

[0292] In embodiment 3-1, the content of the plurality of first-color pigment flakes 13 relative to 100 parts by mass of the first-color adhesive 12 can be 0.5 parts by mass or more and 20 parts by mass or less, and the content of the plurality of second-color pigment flakes 23 relative to 100 parts by mass of the second-color adhesive can be 0.5 parts by mass or more and 20 parts by mass or less. Since the content of the plurality of first-color pigment flakes 13 is in the range of 0.5 parts by mass or more, the pattern of the first-color pattern layer 10 can be well represented. Since the content of the plurality of first-color pigment flakes 13 is in the range of 20 parts by mass or less, the decrease in the film-forming properties and transmittance of the first-color pattern layer 10 can be suppressed. Similarly, since the content of the plurality of second-color pigment flakes 23 relative to 100 parts by mass of the second-color adhesive 22 is in the range of 0.5 parts by mass or more and 20 parts by mass or less, the pattern of the second-color pattern layer 20 can be well represented, and the decrease in the film-forming properties and transmittance of the second-color pattern layer 20 can be suppressed.

[0293] In embodiment 3-1, the total light transmittance of the printed material 2 (decorative sheet) can be 30% to 70%. When the total light transmittance is 30% or higher, when the printed material 2 (decorative sheet) is placed in front of the screen, the pattern printing layer 5 is less visually discernible due to the light of the image on the screen, allowing for clearer visual recognition of the image. When the total light transmittance is 70% or lower, even if the screen is black, the pattern on the pattern printing layer 5 can be prevented from appearing dark.

[0294] In embodiment 3-1, an adhesive layer may also be provided between the resin molded body 206 and the printed material 2 (decorative piece). This improves the adhesion between the resin molded body 206 and the printed material 2 (decorative piece).

[0295] In embodiment 3-1, the molded article may be, for example, a component for automobiles, a component for electrical appliances, or a component for walls. The molded article is not limited to these uses.

[0296] In the third-1 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 lit, the pattern of the pattern printing layer 5 of the molded article 7 can be visually recognized, and when the light source 3 is lit, the transmitted light (pattern display, image display, etc.) from the light source 3 can be visually recognized.

[0297] In embodiment 3-1, the light source 3 can be a display device. In this case, when the display is not lit, the pattern of the pattern printing layer 5 of the molded article 7 can be visually recognized, and when the display is lit, the transmitted light (pattern display, image display, etc.) from the display can be visually recognized.

[0298] <Manufacturing Method of Molded Articles> Molded articles are formed into three-dimensional shapes, for example, through injection molding. That is, the molded article can be an injection-molded article. Because the molded article is injection molded, the resin molded body and the decorative piece have excellent adhesion. Specifically, the molded article can be a film insert or an in-mold molded article.

[0299] When the molded article is a film insert, it can be obtained by the following steps: First, the decorative piece is heated to soften it, and then molded using a molding die. Next, the decorative piece is cut as needed and inserted into the molding die. Resin constituting the resin molded body is injected into the molding die containing the inserted decorative piece, and then demolded to obtain the molded article.

[0300] When the molded article is an in-mold molded article, it can be obtained by the following steps: First, the decorative piece is supplied to the molding die, and after the decorative piece is fixed, it is suctioned to make the decorative piece conform to the shape of the molding die. Next, after the mold is closed, the resin constituting the resin molded body is inserted and injection molding is performed. The mold is then opened to obtain the molded article.

[0301] Molded articles are formed into three-dimensional shapes, for example, through vacuum forming and / or air forming. Molding articles using vacuum forming and / or air forming requires less time to remove burrs from decorative pieces, resulting in excellent manufacturing efficiency. Specifically, the molded article can be a TOM (Three Dimension Overlay Method) molded article.

[0302] When the molded product is a TOM molded product, it can be obtained by following these steps: First, a resin molded body is made. The made resin molded body is placed in the lower chamber of the TOM molding apparatus. A decorative sheet is placed between the lower and upper chambers of the apparatus, and after sealing the chamber, the decorative sheet is heated to soften it. Next, after evacuating the lower chamber of the apparatus, pressure is applied to the upper chamber to lift the resin molded body. The decorative sheet is then transferred to the shape of the resin molded body, resulting in the molded product.

[0303] [Implementation Method 3-2] The following is for reference Figure 29 and Figure 4 The molded article 7A of the third-second embodiment will be described. It should be noted that in the description of the third-second embodiment, descriptions that are repeated in the third-first embodiment are omitted, and the parts that differ from the third-first embodiment are described. That is to say, to the extent technically possible, the descriptions of the third-first embodiment can be appropriately used in the third-second embodiment.

[0304] Figure 29 This is a schematic cross-sectional view showing the molded article of the third-second embodiment. The above-mentioned... Figure 4 It is also equivalent to indicating in a symbolic way Figure 29 The diagram shows a cross-sectional view of the white pattern layer on the decorative sheet. Printed material 2A (decorative sheet) includes a translucent substrate 4 (substrate layer) and a pattern printing layer 5. Printed material 2A (decorative sheet) also includes a white pattern layer 40 disposed on the second color pattern layer 20. Regarding printed material 2A (decorative sheet), the application is based on the first disclosure... Figure 4 The descriptions are identical in structure.

[0305] [Implementation Method 3-3] The following is for reference Figure 30The molded article 7B of the third-3rd embodiment will be described. It should be noted that in the description of the third-3rd embodiment, descriptions that are repeated in the third-1st and third-2nd embodiments are omitted, and the parts that differ from the third-1st and third-2nd embodiments are described. That is to say, to the extent technically possible, the descriptions of the third-1st and third-2nd embodiments can be appropriately used in the third-3rd embodiment.

[0306] Figure 30 This is a schematic cross-sectional view of the molded article according to Embodiment 3-3. The printed material 2B (decorative piece) of the molded article 7B includes a translucent substrate 4 (substrate layer) and a pattern printing layer 5. That is, the printed material 2B (decorative piece) does not have a translucent smoke-colored printing layer 30 and a white pattern layer 40. Even with the above-described configuration of the printed material 2B (decorative piece), it can achieve the same effect as in Embodiment 3-1 described above.

[0307] [Implementation Method 3-4] The following is for reference Figure 31 The molded article 7C of the third and fourth embodiments will be described. It should be noted that in the description of the third and fourth embodiments, descriptions that are repeated in the third, fourth, and fifth embodiments are omitted, and descriptions that differ from the third, fourth, and fifth embodiments are included. That is to say, to the extent technically possible, descriptions of the third, fourth, and fifth embodiments can be appropriately used in the third and fourth embodiments.

[0308] Figure 31 This is a schematic cross-sectional view of the molded article according to embodiments 3-4. The printed material 2C (decorative sheet) of the molded article 7C includes a translucent substrate 4 (substrate layer), a pattern printing layer 5, a white pattern layer 40, and a translucent smoke printing layer 30. The white pattern layer 40 is disposed on the second color pattern layer 20, and the translucent smoke printing layer 30 is disposed on the white pattern layer 40. Even with the above-described configuration of the printed material 2C (decorative sheet), it can achieve the same effects as embodiments 3-1, 3-2, and 3-3 described above.

[0309] The display device and molded article disclosed herein are not limited to the embodiments described above, and various other modifications are possible. For example, the second color pattern layer may contain first interference pigments of multiple colors that generate mutually different first interference light, and the first color pattern layer may contain second interference pigments that generate monochromatic second interference light that differs from the mixed colors presented by the multiple first interference pigments. Furthermore, in the embodiments described above, the first color pigment sheet is a two-color first interference pigment, but the first color pigment sheet may also be a three-color or more first interference pigment.

[0310] [Fifth Implementation] The decorative pieces mentioned above can also be decorative pieces that can be three-dimensionally formed by molding. In addition, the molded articles can also be molded articles that do not have a resin molded body but are only composed of decorative pieces. That is, another embodiment of this disclosure is a molded article, wherein the molded article is a molded article of the above-mentioned decorative sheet, specifically, a molded article formed only from the decorative sheet, the decorative sheet having visible light transmittance, the decorative sheet having a substrate layer and a pattern printing layer, the pattern printing layer having: a first color pattern layer disposed on one surface of the substrate layer, composed of a plurality of first color dots; and a second color pattern layer disposed on the first color pattern layer, composed of a plurality of second color dots, each of the plurality of first color dots comprising a first color binder and a plurality of first color pigment flakes dispersed within the first color binder, each of the plurality of second color dots comprising a second color binder and a plurality of second color pigment flakes dispersed within the second color binder, either of the plurality of first color pigment flakes and the plurality of second color pigment flakes being first interference pigments that generate multiple colors of first interference light that are different from each other, the other of the plurality of first color pigment flakes and the plurality of second color pigment flakes being a second interference pigment that generates a monochromatic second interference light that is different from the mixed color presented by the plurality of first interference pigments, and additive color mixing of the plurality of first interference lights and the second interference lights.

[0311] Regarding molded articles, to the extent technically possible, the descriptions of embodiments 3-1, 3-2, and 3-3 described above may be appropriately used in embodiments 3-4.

[0312] Molded products can be obtained by vacuum forming, pneumatic forming, or pressure forming of decorative pieces. Specific forming methods can be those known to the public.

[0313] Reference Figures 32-34 Regarding the above Figures 1 to 31 The application examples of the technology are illustrated below. Figure 32 This is a front view of an in-vehicle device 500 equipped with a display device 1. An example of an in-vehicle device 500 is an in-vehicle console. Figure 33 This is a 3D view of the vehicle-mounted equipment 500. Figure 34This is a cross-sectional view of the vehicle-mounted device 500. The vehicle-mounted device 500 is an operating panel installed inside a vehicle. Figure 32 As shown, the vehicle-mounted device 500 includes an image transmission unit 501A, an image transmission unit 501B, and a steering wheel 502 on a surface 500a. When the display device is turned on, the image transmission units 501A and 501B display images on the surface 500a, and when the display device is turned off, they display patterns on the surface 500a.

[0314] like Figure 33 and Figure 34 As shown, the vehicle-mounted device 500, starting from surface 500a, sequentially comprises a printed material 2 (decorative piece), a sheet adhesive tape 503, an acrylic sheet 504, an adhesive layer 508, a light source 3 serving as a display device, and a housing 506. The sheet adhesive tape 503 bonds the printed material 2 (decorative piece) to the acrylic sheet 504. The adhesive layer 508, for example made of OCA, bonds the acrylic sheet 504 to the light source 3. The housing 506 supports each component. Figure 33 As shown, the housing 506 has receiving portions 507A and 507B at positions corresponding to the image transmission portions 501A and 501B. The light source 3 and acrylic plate 504 corresponding to the image transmission portion 501A are received in the receiving portion 507A. The light source 3 and acrylic plate 504 corresponding to the image transmission portion 501B are received in the receiving portion 507B. The printed material 2 (decorative sheet) is attached to the surface of the housing 506 in a manner that conceals the light source 3 and the entire surface of the housing 506 within these receiving portions 507A and 507B.

[0315] Furthermore, the aforementioned technologies can also be applied to Figure 35 The vehicle-mounted device 510 is shown. The vehicle-mounted device 510 is installed on the back side of a seat 511 inside a vehicle. The vehicle-mounted device 510 internally houses a light source 3, which serves as a display device, and has a printed material 2 (decorative piece) covering the light source 3. The vehicle-mounted device 510 has an image transmission section 512 on its back side 510a at eye level for the passenger in the rear seat. When the display device is turned on, the image transmission section 512 displays an image on the back side 510a; when the display device is turned off, it displays a pattern on the back side 510a.

[0316] Furthermore, the aforementioned technologies can also be applied to Figure 36The vehicle-mounted device 520 is shown. The vehicle-mounted device 520 is installed on the door handle 521 inside a vehicle. The vehicle-mounted device 520 internally houses a light source 3, which serves as a display device, and has a printed material 2 (decorative piece) covering the light source 3. The vehicle-mounted device 520 has an image transmission section 522 on the upper surface 520a of the door handle 521. When the display device is turned on, the image transmission section 522 displays an image on the upper surface 520a; when the display device is turned off, it displays a pattern on the upper surface 520a. The vehicle-mounted device 520 is configured as a door switch for the vehicle door. When opening / closing the door, the vehicle-mounted device 520 displays an operation screen related to the opening / closing action of the door on the image transmission section 522. At other times, the vehicle-mounted device 520 turns off the display device and hides it.

[0317] Explanation of reference numerals in the attached figures: 1: Display device; 2, 2A, 2B, 2C: Printed material (decorative piece); 3: Light source; 4: Translucent substrate; 5: Pattern printing layer; 206: Resin molded body; 7, 7A, 7B, 7C: Molded article; 10: First color pattern layer; 11: First color halftone dot; 12: First color adhesive; 13: First color pigment sheet; 14a, 14b: First interference pigment; 15a, 15b: First interference light; 20: Second color pattern layer; 21: Second color halftone dot; 22: Second color adhesive; 23: Second color pigment sheet; 24: Second interference pigment; 25: Second interference light; 30: Transmissive smoke-colored printing layer; 40: White pattern layer; 41: Silver dot; 42: Silver adhesive; 43: Silver pigment flake; 50: Liquid crystal panel; 52: Display section; 54: Outer periphery; 57: Processing section; 58: Resin layer; 60: Transparent substrate for panel (transparent substrate); 70: Display device; 100: Display device; 101: Injection molded article; 122: Transmissive decorative insert film; 103: Resin layer; 104: Display device; 140: Resin; 150A, 150B: Mold.

Claims

1. A molded article, wherein, It comprises a resin molded body and a decorative piece disposed on the surface of the resin molded body. The resin molded body and the decorative piece are visible light transmissive. The decorative sheet has a substrate layer and a pattern printing layer. The pattern printing layer has: A first color pattern layer is disposed on one surface of the substrate layer and is composed of a plurality of first color dots; and The second color pattern layer, disposed on the first color pattern layer, is composed of multiple second color dots. Each of the plurality of first-color dots comprises a first-color binder and a plurality of first-color pigment flakes dispersed within the first-color binder. Each of the plurality of second-color dots comprises a second-color binder and a plurality of second-color pigment flakes dispersed within the second-color binder. Each of the plurality of first-color pigment plates and the plurality of second-color pigment plates is a first interference pigment that generates multiple colors of first interference light that are different from each other. The other of the plurality of first-color pigment plates and the plurality of second-color pigment plates is a second interference pigment that generates monochromatic second interference light that differs from the mixed color produced by the plurality of first interference pigments. The various first interference lights and the second interference lights are mixed with additive colors.

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

3. The molded article according to claim 1, wherein, The molded product is a TOM molded product.

4. A molded article, wherein, The molded article is formed only from decorative pieces. The decorative piece is translucent to visible light. The decorative sheet has a substrate layer and a pattern printing layer. The pattern printing layer has: A first color pattern layer is disposed on one surface of the substrate layer and is composed of a plurality of first color dots; and The second color pattern layer, disposed on the first color pattern layer, is composed of multiple second color dots. Each of the plurality of first-color dots comprises a first-color binder and a plurality of first-color pigment flakes dispersed within the first-color binder. Each of the plurality of second-color dots comprises a second-color binder and a plurality of second-color pigment flakes dispersed within the second-color binder. Each of the plurality of first-color pigment plates and the plurality of second-color pigment plates is a first interference pigment that generates multiple colors of first interference light that are different from each other. The other of the plurality of first-color pigment plates and the plurality of second-color pigment plates is a second interference pigment that generates monochromatic second interference light that differs from the mixed color produced by the plurality of first interference pigments. The various first interference lights and the second interference lights are mixed with additive colors.

5. The molded article according to any one of claims 1 to 4, wherein, The decorative piece also includes a white pattern layer, which is disposed on the second color pattern layer and consists of multiple silver dots. Each of the plurality of silver dots comprises a silver binder and a plurality of silver pigment flakes dispersed within the silver binder.

6. The molded article according to any one of claims 1 to 4, wherein, The decorative sheet also has a transmissive smoke-colored printing layer disposed on the outermost surface opposite to the substrate layer, relative to the pattern printing layer.

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

8. The molded article according to any one of claims 1 to 4, wherein, The content of the plurality of first color pigment flakes is 0.5 parts by weight or more and 20 parts by weight or less, relative to 100 parts by weight of the first color adhesive. The content of the plurality of second-color pigment flakes is 0.5 parts by mass or more and 20 parts by mass or less, relative to 100 parts by mass of the second-color adhesive.

9. A display device, wherein, It comprises a molded article and a light source as described in any one of claims 1 to 4.

10. The display device according to claim 9, wherein, The light source is a display device.

11. An injection molding method, wherein, By decorating the film, a light-transmitting decorative insert film with a visible light transmittance of more than 10% and less than 80% is prepared. A resin with a visible light transmittance of less than 40% is prepared by adding pigments to a transparent resin. An injection-molded article is formed by inserting the light-transmitting decorative insert film into a mold and injecting the resin into the mold.

12. The injection molding method according to claim 11, wherein, The pigment is carbon black.

13. The injection molding method according to claim 11, wherein, The pigment is an inorganic or organic coloring pigment.

14. An injection-molded article formed by the injection molding method as described in any one of claims 11 to 13.

15. A display device, wherein, It has the injection-molded article and display device as described in claim 14.

16. A liquid crystal panel, wherein, It must have at least a translucent substrate and a pattern printing layer. The pattern printing layer is disposed on one side of the light-transmitting substrate and includes a pattern layer composed of multiple dots. Each of the plurality of dots comprises an adhesive and a plurality of pigment flakes dispersed within the adhesive. The multiple pigment plates are interference pigments. The translucent substrate, on the side opposite to the pattern printing layer, has: a light-transmitting display portion; and an outer peripheral portion on the outer periphery side of the display portion. An anti-glare treatment section is formed in the display section. A resin layer formed on the outer periphery is subjected to molding processing using a UV-curable resin.

17. The liquid crystal panel according to claim 16, wherein, The anti-glare treatment is performed using shot peening.

18. The liquid crystal panel according to claim 16, wherein, The liquid crystal panel also has a white pattern layer, which is disposed on the pattern printing layer and consists of multiple silver dots. Each of the plurality of silver dots comprises a silver binder and a plurality of silver pigment flakes dispersed within the silver binder.

19. The liquid crystal panel according to claim 16, wherein, The liquid crystal panel also has a transmissive smoke-colored printing layer disposed on the outermost surface opposite to the translucent substrate, relative to the pattern printing layer.

20. The liquid crystal panel according to claim 16, wherein, The pattern layer has: A first-color pattern layer, disposed on one side of the translucent substrate, is composed of a plurality of first-color dots; and The second color pattern layer, disposed on the first color pattern layer, is composed of multiple second color dots. Each of the first color dots comprises a first color binder and a plurality of first color pigment flakes dispersed within the first color binder. Each of the second color dots comprises a second color binder and a plurality of second color pigment flakes dispersed within the second color binder. The first color pigment plate and the second color pigment plate each contain multiple different interference pigments that are displayed by interference light as reflected light. The other of the first and second color pigment sheets contains an interference pigment that produces color by interference light as the reflected light side, and whose color rendering differs from the mixed color rendering of the multiple colors of interference pigments contained in either of the first and second color pigment sheets. The interference light is mixed with additive colors.

21. The liquid crystal panel according to claim 16, wherein, The pattern layer has: A first-color pattern layer, disposed on one side of the translucent substrate, is composed of a plurality of first-color dots; and The second color pattern layer, disposed on the first color pattern layer, is composed of multiple second color dots. Each of the first color dots comprises a first color binder and a plurality of first color pigment flakes dispersed within the first color binder. Each of the second color dots comprises a second color binder and a plurality of second color pigment flakes dispersed within the second color binder. The plurality of first-color pigment plates are the first interference pigments that generate monochromatic first interference light. The plurality of second-color pigment plates are second interference pigments that generate monochromatic second interference light with colors different from those exhibited by the first interference pigment. The first interference light and the second interference light are mixed with additive colors.

22. The liquid crystal panel according to claim 16, wherein, The pattern layer has: A first-color pattern layer, disposed on one side of the translucent substrate, is composed of a plurality of first-color dots; and The second color pattern layer, disposed on the first color pattern layer, is composed of multiple second color dots. Each of the first color dots comprises a first color binder and a plurality of first color pigment flakes dispersed within the first color binder. Each of the second color dots comprises a second color binder and a plurality of second color pigment flakes dispersed within the second color binder. Each of the plurality of first-color pigment plates and the plurality of second-color pigment plates is a first interference pigment that generates multiple colors of first interference light that are different from each other. The other of the plurality of first-color pigment plates and the plurality of second-color pigment plates is a second interference pigment that generates monochromatic second interference light of the same color as any of the plurality of first interference pigments. The various first interference lights and the second interference lights are mixed with additive colors.

23. A display device, wherein, A liquid crystal panel and display device as described in any one of claims 16 to 22.

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