Decorated molded body, decorative display system, decorative member, and movable body

Abstract

This suppresses the deterioration of the design displayed on the decorative molded product. [Solution] The decorated molded body 10 includes a decorative portion 20 and a support portion 30 in that order, from the first surface 11 to the second surface 12. The decorated molded body 10 is transparent to visible light. The support portion 30 includes a base portion 31 that supports the decorative portion 20 and a protruding portion 32 that protrudes from the base portion 31. The base portion 31 is located between the decorative portion 20 and the protruding portion 32. The protruding portion 32 includes a visible light absorbing material 320.

Description

Technical Field

[0001] The present disclosure relates to a decorative molded body, a decorative display system, a decorative member, and a mobile object.

Background Art

[0002] As disclosed in Patent Document 1, a decorative molded body having a first surface and a second surface is known. The decorative molded body includes a decorative portion and a support portion in this order from the first surface toward the second surface. The decorative molded body displays a design on the first surface.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problem to be Solved by the Invention

[0004] In Patent Document 1, the decorative molded body is overlaid on a light-emitting device from the second surface side. The light-emitting device and the decorative molded body form a decorative display system. The decorative molded body transmits light emitted from the light-emitting device. The decorative display system displays an image by the light transmitted through the decorative molded body.

[0005] The support portion includes a base portion that supports the decorative portion, and a protruding portion that protrudes from the base portion. The base portion is located between the decorative portion and the protruding portion. The decorative molded body includes a connection region. The connection region is a partial region of the first surface, and is a region obtained by projecting the connection portion between the base portion and the protruding portion onto the first surface. When the first surface of the conventional decorative molded body is observed with external light, the connection region is observed to be bright. The design displayed by the decorative molded body is degraded due to the connection region being observed as bright. The present disclosure aims to suppress degradation of the design displayed by the decorative molded body.

Means for Solving the Problem

[0006] A first decorative molded body according to one embodiment of the present disclosure is A decorative molded body having visible light transmittance, From the first surface to the second surface, the decorative part and the support part are arranged in this order. The support portion includes a base portion that supports the decorative portion and a protruding portion that extends from the base portion. The base portion is positioned between the decorative portion and the protruding portion, The support portion includes a visible light absorbing material in the protruding portion.

[0007] A second decorative molded body according to one embodiment of the present disclosure is A decorative molded body that transmits light emitted from a light-emitting device, From the first surface to the second surface, the decorative part and the support part are arranged in this order. The support portion includes a base portion that supports the decorative portion and a protruding portion that extends from the base portion. The base portion is located between the decorative portion and the protruding portion, The support portion includes a visible light absorbing material in the protruding portion.

[0008] A decorative display system according to one embodiment of the present disclosure is A decorative molded body comprising a decorative portion and a support portion in that order, from the first surface to the second surface, The decorated molded body is equipped with a light-emitting device that overlaps it from the second surface side, The decorated molded body transmits light emitted from the light-emitting device, The support portion includes a base portion that supports the decorative portion and a protruding portion that extends from the base portion. The base portion is located between the decorative portion and the protruding portion, The support portion includes a visible light absorbing material in the protruding portion. [Effects of the Invention]

[0009] According to this disclosure, deterioration of the design displayed on the decorated molded body can be suppressed. [Brief explanation of the drawing]

[0010] [Figure 1] Figure 1 is a diagram for describing an embodiment, and is a diagram of a moving body including a decorative member. [Figure 2] Figure 2 is an exploded perspective view of the decorative member of Figure 1. [Figure 3] Figure 3 is a diagram of the decorative display system of Figure 2 when the light-emitting device is in a light-emitting state. [Figure 4] Figure 4 is a diagram of the light-emitting device in a light-emitting state. [Figure 5] Figure 5 is a schematic cross-sectional view of the decorative display system of Figure 2. [Figure 6] Figure 6 is a cross-sectional view of the decorative portion of Figure 5. [Figure 7] Figure 7 is an enlarged view of the decorative portion of Figure 5 when observed from the X direction. [Figure 8] Figure 8 is a perspective view showing the second surface of the decorative molded body of Figure 2. [Figure 9] Figure 9 is an enlarged view showing the protruding portion of the decorative molded body in Figure 4. [Figure 10] Figure 10 is a diagram showing the connection region of the decorative molded body of Figure 2. [Figure 11] Figure 11 is a diagram for describing a method for manufacturing the decorative molded body of Figure 5. [Figure 12] Figure 12 is a diagram for describing a method for manufacturing the decorative molded body of Figure 5. [Figure 13] Figure 13 is a diagram for describing a method for manufacturing the decorative molded body of Figure 5. [Figure 14] Figure 14 is a diagram for describing a method for manufacturing the decorative molded body of Figure 5. [Figure 15] Figure 15 is a diagram for describing a method for manufacturing the decorative molded body of Figure 5. [Figure 16] Figure 16 is a cross-sectional view of a modified example of the decorative molded body. [Figure 17] Figure 17 is a cross-sectional view of another modified example of the decorative molded body. [Figure 18] Figure 18 is a cross-sectional view of a modified example of the decorative portion. [Figure 19] Figure 19 is an exploded perspective view of one deformation of the decorative member. [Figure 20] Figure 20 is an enlarged view of a modified example of the decorative part, observed from the X direction. [Figure 21] Figure 21 is an enlarged view of another modified example of the decorative part, observed from the X direction. [Figure 22] Figure 22 shows the connection region of a conventional decorative molded body. [Modes for carrying out the invention]

[0011] One embodiment of the present disclosure relates to the following [1] to

[14] .

[0012] [1] A decorative molded article having visible light transmittance, From the first surface to the second surface, the decorative part and the support part are arranged in this order. The support portion includes a base portion that supports the decorative portion and a colored projection portion that protrudes from the base portion. The base portion is a decorative molded body located between the decorative portion and the protruding portion.

[0013] [2] The decorative molded body of [1], wherein the protrusion comprises a thermoplastic resin and the visible light absorbing material dispersed within the thermoplastic resin.

[0014] [3] The visible light absorbing material comprises a black pigment in the decorated molded article of [1] or [2].

[0015] [4] The decorated molded body of any of [1] to [3], wherein the total light transmittance per unit thickness of the base portion is 30% or more and 80% or less.

[0016] [5] The second surface includes a first region formed by the base portion and a second region formed by the protruding portion, A decorated molded body of any of [1] to [4] wherein the arithmetic mean roughness of the second surface in the second region is less than the arithmetic mean roughness of the second surface in the first region.

[0017] [6] The decorative portion includes a transparent portion and a light-shielding portion, The decorative portion is a decorative molded body of any of [1] to [5] that displays a design in the light-shielding portion.

[0018] [7] A decorative molded body that transmits light emitted from a light-emitting device, From the first surface to the second surface, the decorative part and the support part are arranged in this order. The support portion includes a base portion that supports the decorative portion and a protruding portion that extends from the base portion. The base portion is located between the decorative portion and the protruding portion, The support portion is a decorative molded body in which a visible light absorbing material is included in the protruding portion.

[0019] [8] The base portion includes a first base region that overlaps with the light-emitting device, The decorated molded article [7] wherein the total light transmittance per unit thickness of the base portion is 30% or more and 100% or less in the first base region.

[0020] [9] A decorated molded body of any of [1] to [8], The decorated molded body is further equipped with a light-emitting device that overlaps the second surface, The support portion is located between the light-emitting device and the decorative portion, forming a decorative display system.

[0021]

[10] A decorated molded body comprising a decorative part and a support part in this order from the first surface to the second surface, The decorated molded body is further equipped with a light-emitting device that overlaps the second surface, The decorated molded body transmits light emitted from the light-emitting device, The support portion includes a base portion that supports the decorative portion and a protruding portion that extends from the base portion. The base portion is located between the decorative portion and the protruding portion, The support portion includes a visible light absorbing material in the protruding portion, in a decorative display system.

[0022]

[11] [9] or

[10] decorative display system, A decorative member comprising a housing member for housing the light-emitting device.

[0023]

[12] The housing member includes a housing having an opening, The decorative molded body covers the opening, The light-emitting device and the protrusion are decorative members

[11] housed in the housing.

[0024]

[13] The housing is a decorative member of

[12] having visible light shielding properties.

[0025] A mobile body including any of the decorative members

[14]

[11] to

[13] .

[0026] An embodiment will be described by referring to a specific example. Drawings will be referenced in the following description. For ease of illustration and understanding, the dimensional ratios in the drawings may be modified from the dimensional ratios of the actual object. The terms used to specify shapes, geometric conditions such as "parallel" and "orthogonal," lengths, and angle values ​​should not be interpreted strictly, but rather within a range that allows for the expectation of similar functionality. Components shown in one drawing may be omitted in other drawings.

[0027] Directions common to multiple drawings are indicated by arrows with a common reference numeral in each drawing. In each illustrated direction, the tip of the arrow is the first side, and the opposite side, i.e., the base of the arrow, is the second side. The first side in a direction perpendicular to the drawing is indicated by a symbol of a circle with a dot inside. The second side in a direction perpendicular to the drawing is indicated by a symbol of a circle with an X inside.

[0028] Figures 1 to 15 are diagrams illustrating one embodiment. Figure 1 shows a mobile body 1. Mobile body 1 is a movable structure. Mobile body 1 may be a manned mobile body capable of accommodating personnel. The manned mobile body may be an automobile, motorcycle, railway vehicle, ship, or aircraft. Mobile body 1 may also be an unmanned mobile body. The unmanned mobile body may be, for example, a drone. The illustrated mobile body 1 is an automobile 2. Figure 1 shows the interior of automobile 2.

[0029] The automobile 2 in Figure 1 includes a decorative member 4. The decorative member 4 displays design D. The decorative member 4 is located on the dashboard 3. In automobile 2, the dashboard 3 is a wall separating the engine compartment from the passenger compartment. The decorative member 4 constitutes a part of the dashboard 3.

[0030] As shown in Figure 1, the mobile body 1 may include a plurality of decorative members 4. The illustrated mobile body 1 includes two decorative members 4 positioned on the dashboard 3. One of the two decorative members 4 is positioned facing the driver's seat of the automobile 2. The other of the two decorative members 4 is positioned facing the passenger seat of the automobile 2.

[0031] Figure 2 is an exploded perspective view of a decorative member 4 positioned opposite the passenger seat of automobile 2. As shown in Figure 2, the decorative member 4 includes a decorative display system 5 and a housing member 6 that houses the decorative display system 5. The decorative display system 5 displays a design D and an image IM, as shown in Figure 3. The decorative display system 5 includes a display surface 5a for displaying the image IM and the design D. In Figure 2, the decorative display system 5 displays circular, triangular, and square shapes as image IM.

[0032] In the mobile body 1 of Figure 2, the housing member 6 may be composed of multiple members. The housing member 6 may be composed of members other than the decorative member 4 of the dashboard 3. The housing member 6 may be composed of the exterior members of the mobile body 1.

[0033] The decorative display system 5 in Figure 2 includes a light-emitting device 7 and a decorative molded body 10 that overlaps the light-emitting device 7. The decorative display system 5 displays the design D using the decorative molded body 10. The light-emitting device 7 includes a light-emitting surface 8 that emits light. The decorative display system 5 in Figure 3 displays the image IM described above using light emitted from the light-emitting surface 8 of the light-emitting device 7. The image IM may be a still image or a moving image.

[0034] The decorative display system 5 in Figure 3 includes a first region A1 capable of displaying image IM and design D, and a second region A2 capable of displaying design D. In the first region A1, image IM is displayed when the light-emitting device 7 is in the light-emitting state. In the first region A1, design D is displayed when the light-emitting device 7 has stopped emitting light. As shown in Figure 3, in the second region A2, design D is displayed regardless of the state of the light-emitting device 7.

[0035] The light-emitting device 7 may be a surface light source device. The light-emitting device 7 may include multiple light-emitting elements. In the light-emitting device 7, the multiple light-emitting elements may be arranged in a two-dimensional array. A two-dimensional array means an arrangement in two directions that are not parallel to each other. In the case of multiple light-emitting elements, a "two-dimensional array" means that the multiple light-emitting elements are arranged in two directions that are perpendicular to the normal direction of the light-emitting surface 8. Each of the multiple light-emitting elements may constitute a pixel. The light-emitting device 7 may include multiple pixels.

[0036] In the light-emitting device 7, the state in which light is emitted from the light-emitting surface 8 may be described as the "light-emitting state." In the light-emitting device 7, the state in which the emission of light from the light-emitting surface 8 is stopped may be described as the "extinguishing state." In the decorative display system 5 of Figure 3, the light-emitting device 7 is in the light-emitting state. When the light-emitting device 7 includes multiple light-emitting elements, in the light-emitting state, some of the multiple light-emitting elements may emit light. When the light-emitting device 7 includes multiple light-emitting elements, in the light-emitting state, some of the multiple light-emitting elements may stop emitting light.

[0037] Figure 4 shows the light-emitting device 7 in its illuminated state. The light-emitting device 7 displays circular, triangular, and square shapes on its light-emitting surface 8. The decorative display system 5 in Figure 3 displays the image IM using the light-emitting device 7 in the illuminated state shown in Figure 4. In the light-emitting device 7 in Figure 4, the light-emitting elements located in the parts that display the shapes emit light. The light-emitting elements located in the parts that do not display shapes have stopped emitting light.

[0038] The light-emitting device 7 and the decorative molded body 10 in Figure 5 are supported by a housing member 6. The housing member 6 in Figure 5 includes a support surface 60 that supports the light-emitting device 7 and the decorative molded body 10. The light-emitting device 7 and the decorative molded body 10 are attached to the support surface 60. The decorative molded body 10 may be attached to the support surface 60 by a mounting fixture (not shown). The mounting fixture may be a screw.

[0039] As shown in Figure 5, a gap AG may be provided between the light-emitting device 7 and the decorative molded body 10 while supported by the housing member 6. Contrary to the illustration, a gap AG does not need to be provided between the light-emitting device 7 and the decorative molded body 10.

[0040] The decorative molded body 10 in Figure 5 includes a first surface 11 and a second surface 12. The decorative molded body 10 is superimposed on the light-emitting surface 8 of the light-emitting device 7 from the second surface 12. As shown in Figures 2, 8, and 9, the decorative molded body 10 may have a three-dimensional shape.

[0041] In the decorative display system 5 shown in Figures 3 and 5, the decorative molded body 10 transmits light emitted from the light-emitting surface 8 of the light-emitting device 7. In the decorative display system 5, the light emitted from the light-emitting surface 8 is incident on the second surface 12 of the decorative molded body 10. A portion of the light incident on the second surface 12 is emitted from the first surface 11. The observer of the decorative display system 5 observes the light emitted from the light-emitting surface 8 that is incident on the second surface 12 and emitted from the first surface 11 as an image IM.

[0042] In particular, the decorative molded body 10 in Figure 5 has visible light transmittance. The decorative display system 5 in Figure 3 can clearly display the image IM because the decorative molded body 10 has visible light transmittance.

[0043] The decorated molded body 10 has visible light transmittance when the minimum value of 10 measured values ​​for total light transmittance is 3% or more in the wavelength range of 380 nm to 750 nm. The minimum value of 10 measured values ​​for total light transmittance of the decorated molded body 10 may be 3% or more, or 5% or more, in the wavelength range of 380 nm to 750 nm. In the decorated molded body 10, the measured value for total light transmittance is obtained using light incident on the first surface 11 and emitted from the second surface 12, or light incident on the second surface 12 and emitted from the first surface 11.

[0044] The unit of measurement for total light transmittance is %. Each of the multiple measurement values ​​for total light transmittance is measured at a different measurement location. Each of the multiple measurement values ​​for total light transmittance is the arithmetic mean of five measurement results at each measurement location. A haze meter is used to obtain the measurement values ​​for total light transmittance. A D65 light source is used to obtain the measurement values ​​for total light transmittance. Prior to obtaining the measurement values, the light source is illuminated for 15 minutes. The measuring diameter of the haze meter is 14 mm. The environment for obtaining the measurement values ​​for total light transmittance is a temperature of 23°C ± 2°C and a relative humidity of 50% ± 5%. The method for obtaining the measurement values ​​for total light transmittance follows JIS K7361-1:1997 in all respects except those mentioned above.

[0045] From the viewpoint of effectively concealing the light-emitting device 7, an upper limit may be set on the maximum value of the above-mentioned measured values ​​for the total light transmittance of the decorated molded body 10. The maximum value of the 10 measured values ​​for total light transmittance may be 15% or less, or 10% or less, in the wavelength range of 380 nm to 750 nm.

[0046] The decorative molded body 10 in Figure 5 includes a decorative portion 20 and a support portion 30 in that order, from the first surface 11 to the second surface 12. The support portion 30 includes a base portion 31 that supports the decorative portion 20 and a protruding portion 32 that protrudes from the base portion 31. In the decorative molded body 10, the base portion 31 is located between the decorative portion 20 and the protruding portion 32. In other words, the protruding portion 32 protrudes from the base portion 31 on the side opposite to the decorative portion 20. As will be described later, the protruding portion 32 may be an attachment member 35 for attaching the decorative molded body 10 to the housing member 6, or it may be a rib 36.

[0047] In the decorated molded body 10 of Figure 5, the first surface 11 is composed of a decorative portion 20. The second surface 12 is composed of a support portion 30. In particular, the second surface 12 includes a first region 121 composed of a base portion 31 and a second region 122 composed of a protruding portion 32. The second surface 12 faces the light-emitting surface 8 of the light-emitting device 7 in the first region 121.

[0048] In the decorated molded body 10 of Figure 5, the first surface 11 and the second surface 12 are separated from each other in the first direction D1. The illustrated first direction D1 is the normal direction of the first surface 11. In Figure 5, the first direction D1 is also the normal direction of the second surface 12 in the first region 121. For ease of illustration and understanding, the first surface 11 is a plane perpendicular to the first direction D1. The first surface 11 may be a curved surface, as shown in Figures 2 and 3. When the first surface 11 is a curved surface, it may be curved around a first axis and a second axis that is not parallel to the first axis.

[0049] <<Decorative part 20>> The decorative portion 20 forms the design D. Light enters the decorative portion 20 from the outside. A portion of the light that enters the decorative portion 20 is reflected according to the design D. A portion of the light that enters the decorative portion 20 may be absorbed according to the design D. The observer of the decorative display system 5 observes the design D using the light that enters the first surface 11, which is reflected by the decorative portion 20 and emitted from the first surface 11.

[0050] The decorative portion 20 transmits visible light in whole or in part. For example, as shown in Figures 6 and 7, the decorative portion 20 may include a transparent portion 21 and a light-shielding portion 22. The transparent portion 21 transmits visible light to a degree that it can be distinguished from the light-shielding portion 22. The decorative portion 20 may include a plurality of transparent portions 21, as shown in Figures 6 and 7. By including transparent portions 21 in the decorative portion 20, the amount of light transmitted through the decorative portion 20 can be improved in the decorated molded body 10.

[0051] Figure 7 includes a plurality of transparent sections 21 arranged regularly in two dimensions. The decorative section 20 does not need to display the design D in the transparent sections 21. The transparent sections 21 in Figure 7 have a circular shape when viewed from the X direction DX. As shown in Figure 7, the light-shielding section 22 may be a part of the decorative section 20 other than the transparent sections 21.

[0052] The multiple transparent sections 21 shown in Figures 6 and 7 are arranged in two dimensions in the Y direction DY and the Z direction DZ. Both the Y direction DY and the Z direction DZ are perpendicular to the X direction DX. The Y direction DY and the Z direction DZ are perpendicular to each other.

[0053] The transparent portion 21 shown in Figures 6 and 7 has dimensions that make it difficult to observe with the naked eye when viewed from the X direction DX. The dimensions of the transparent portion 21 may be 30 μm or more, or 200 μm or less, when viewed from the X direction DX. By having such dimensions for the transparent portion 21, the observer of the decorative display system 5 can avoid observing the shading of the design D between the transparent portion 21 and the light-shielding portion 22, as shown in Figure 7.

[0054] The decorative portion 20 may be a decorative sheet 40, as shown in Figure 6. The decorative sheet 40 is a sheet that displays design D. The decorative molded body 10 may include the decorative sheet 40 and the support portion 30 in this order, from the first surface 11 to the second surface 12. The decorative sheet 40 may be joined to the support portion 30. The decorative portion 20 may also be formed by printing, transferring, painting, etc., on the support portion 30, not limited to the example shown in Figure 6.

[0055] The decorative sheet 40 in Figure 6 includes a first surface 41 and a second surface 42. The first surface 41 and the second surface 42 are separated from each other in the X direction DX. In Figures 6 and 7, the X direction DX is the normal direction of the first surface 41. The X direction DX is also the normal direction of the second surface 42.

[0056] The decorative sheet 40 is capable of transmitting light emitted from the light-emitting device 7 and light that has passed through the support portion 30. The first surface 41 of the decorative sheet 40 shown in Figure 6 constitutes the first surface 11 of the decorative molded body 10. Therefore, the light emitted from the light-emitting device 7 is emitted from the first surface 41 of the decorative sheet 40.

[0057] In the decorative sheet 40 of Figure 6, the transparent portion 21 includes a base layer 43, a bonding layer 44, and a functional layer 45 in that order, from the second surface 42 to the first surface 41. In the light-shielding portion 22, the decorative sheet 40 includes a base layer 43, a light-shielding layer 46, a design layer 47, a bonding layer 44, and a functional layer 45 in that order, from the second surface 42 to the first surface 41. In the decorative sheet 40 of Figure 6, each of the above layers is laminated in the X direction DX. The X direction DX is also the lamination direction of the decorative sheet 40.

[0058] As shown in Figure 6, the decorative sheet 40 may include an uneven surface 48. The uneven surface 48 in Figure 69 is located between the first surface 41 and the second surface 42. The uneven surface 48 includes a plurality of protrusions 49 aligned in the Y direction DY. The protrusions 49 in Figure 6 are located in the light-shielding portion 22. The protrusions 49 are composed of a light-shielding layer 46 and a design layer 47.

[0059] <Base material layer 43> The base layer 43 shown in Figure 6 is a sheet that extends in the Y direction DY and the Z direction DZ. The base layer 43 supports the layers of the decorative portion 20 other than the base layer 43. The base layer 43 may be colored. The base layer 43 may be transparent. The base layer 43 in Figure 6 constitutes the second surface 42 of the decorative sheet 40.

[0060] When a component of the decorative molded body 10 is "transparent", the total light transmittance of that component is 50% or more. When a component of the decorative molded body 10 is "transparent", the total light transmittance of that component may be 80% or more, or 90% or more. In the components of the decorative molded body 10, the total light transmittance is the arithmetic mean of five measured values ​​for the total light transmittance of that component. In the components of the decorative molded body 10, the method for obtaining the measured values ​​for the total light transmittance is as described above.

[0061] From the viewpoint of stably supporting the other components of the decorative sheet 40, a lower limit may be set for the thickness of the base layer 43. The thickness of the base layer 43 may be 12 μm or more, or 50 μm or more. From the viewpoint of suppressing the thickness of the decorative sheet 40 and stably displaying the light emitted from the light-emitting device 7, the thickness of the base layer 43 may be 1000 μm or less, or 500 μm or less.

[0062] The base layer 43 may be a resin sheet. The base layer 43 may contain a thermoplastic resin. The thermoplastic resin contained in the base layer 43 may include one or more of the following: acrylic, PET (polyethylene terephthalate), polyolefin resins such as polypropylene and polyethylene, polycarbonate, ABS (acrylonitrile-butadiene-styrene copolymer synthetic resin), polypropylene, and triacetylcellulose.

[0063] <Joining layer 44> The bonding layer 44 shown in Figure 6 is located between the base layer 43 and the functional layer 45 in the transparent portion 21. In the light-shielding portion 22, the bonding layer 44 is located between the functional layer 45 and the design layer 47. The bonding layer 44 improves the adhesion between different layers of the decorative sheet 40.

[0064] The bonding layer 44 may be a sheet. In Figure 6, the bonding layer 44 is in contact with the functional layer 45 on one side. On the other side, the bonding layer 44 is in contact with one or more of the base layer 43, the light-shielding layer 46, and the design layer 47.

[0065] The bonding layer 44 may contain an adhesive. The adhesive contained in the bonding layer 44 may be an acrylic adhesive, a rubber adhesive, a urethane adhesive, or a silicone adhesive. The bonding layer 44 may also contain a heat-sealing material. The heat-sealing material is a material that fuses to other members by heating. The heat-sealing material may contain an acrylic resin.

[0066] The bonding layer 44 may contain an optically clear resin. The optically clear resin is a transparent material. The bonding layer 44 may contain OCR (Optical Clear Resin) or OCA (Optical Clear Adhesive) as the optically clear resin.

[0067] The bonding layer 44 shown in Figure 6 overlaps the uneven surface 48 of the decorative sheet 40 from a first direction D1. The bonding layer 44 may reduce the height difference of the uneven surface 48. In other words, the bonding layer 44 may fill in the height difference of the uneven surface 48. In the bonding layer 44 of Figure 6, the height difference on the surface opposite to the surface in contact with the uneven surface 48 is reduced compared to the height difference on the surface in contact with the uneven surface 48.

[0068] The bonding layer 44 shown in Figure 6 is transparent to light emitted from the light-emitting device 7. From the viewpoint of displaying a clear image with light from the light-emitting device 7, the bonding layer 44 may also be transparent.

[0069] <Functional Layer 45> Functional layer 45 is a layer intended to perform a specific function. Functional layer 45 may be intended to perform one of the following functions: scratch resistance, stain resistance, anti-glare function, or anti-reflective function. Functional layer 45 may be intended to perform two or more functions.

[0070] The functional layer 45 may be a hard coat layer intended to provide scratch resistance. The hard coat layer provides scratch resistance and impact resistance to the decorative sheet 40. The functional layer 45 protects the layers of the decorative sheet 40 other than the functional layer 45 from external impacts. When the functional layer 45 is a hard coat layer, it may contain a resin curing agent. By containing a resin curing agent, the scratch resistance of the functional layer 45 can be improved.

[0071] The cured resin product is a cured product of a thermosetting resin composition or a cured product of an ionizing radiation-curable resin composition. The thermosetting resin composition contains a thermosetting resin. A thermosetting resin is usually a resin that crosslinks upon heating. The thermosetting resin composition hardens by crosslinking of the thermosetting resin. The thermosetting resin composition may further contain a curing agent. The curing agent may function as a catalyst to accelerate the hardening of the thermosetting resin, or it may react with the thermosetting resin. The thermosetting resin may crosslink upon reaction with the curing agent. The curing agent may be included in the cured product of the thermosetting resin composition. In a thermosetting resin composition, the thermosetting resin may be described as the main component.

[0072] The thermosetting resin contained in the thermosetting resin composition may include one or more of the following: phenolic resin, urea resin, diallyl phthalate resin, melamine resin, guanamine resin, unsaturated polyester resin, polyurethane resin, epoxy resin, amino alkyd resin, melamine-urea cocondensation resin, and silicon resin. The curing agent contained in the thermosetting resin composition may be an isocyanate compound. The isocyanate compound is a compound containing an isocyanate group. The isocyanate compound may also be a polyisocyanate containing multiple isocyanate groups.

[0073] An ionizing radiation-curable resin composition contains an ionizing radiation-curable resin. An ionizing radiation-curable resin is a resin that crosslinks upon irradiation with ionizing radiation. Ionizing radiation means electromagnetic waves or charged particle beams that have energy quanta capable of polymerizing or crosslinking molecules. Electromagnetic waves may be ultraviolet (UV), X-rays, or gamma rays. Charged particle beams may be electron beams (EB), alpha rays, or ion beams. Among ionizing radiation-curable resins, those that crosslink upon irradiation with ultraviolet radiation may be referred to as ultraviolet-curable resins. Among ionizing radiation-curable resins, those that crosslink upon irradiation with electron beams may be referred to as electron-beam-curable resins. An ionizing radiation-curable resin composition may contain an initiator for initiating crosslinking of the ionizing radiation-curable resin.

[0074] In an ionizing radiation-curable resin composition, the ionizing radiation-curable resin may contain functional groups having ethylenically double bonds, such as (meth)acryloyl groups, acrylic groups, vinyl groups, and allyl groups. The ionizing radiation-curable resin may also contain one or more epoxy groups and oxetanyl groups. The ionizing radiation-curable resin may also contain ethylenically unsaturated bonding groups. The ionizing radiation-curable resin may also contain siloxane bonds.

[0075] <Light blocking layer 46> The light-shielding layer 46 shown in Figure 6 is located in the light-shielding section 22. The thickness of the light-shielding layer 46 in the light-shielding section 22 is greater than the thickness of the light-shielding layer 46 in the light-transmitting section 21. The light-shielding layer 46 does not necessarily have to be located in the light-transmitting section 21, as shown in Figure 6. The light-shielding layer 46 is located on the second surface 42 side of the design layer 47 in the light-shielding section 22. The light-shielding layer 46 is located between the design layer 47 and the base layer 43 in the X direction DX.

[0076] The light-shielding layer 46 absorbs light that reaches it. The light-shielding layer 46 may contain black pigments such as carbon black and titanium black.

[0077] From the viewpoint of stably absorbing light, a lower limit may be set for the thickness of the light-shielding layer 46. The thickness of the light-shielding layer 46 may be 1 μm or more, or 5 μm or more. From the viewpoint of suppressing the thickness of the decorative sheet 40 and stably displaying the light emitted from the light-emitting device 7, an upper limit may be set for the thickness of the light-shielding layer 46. The thickness of the light-shielding layer 46 may be 20 μm or less, or 10 μm or less.

[0078] <Design Layer 47> The design layer 47 shown in Figure 6 is located in the light-shielding section 22. The design layer 47 is not located in the light-transmitting section 21. Contrary to the illustration, the design layer 47 may be located in both the light-transmitting section 21 and the light-shielding section 22. The illustrated design layer 47 is located between the bonding layer 44 and the light-shielding layer 46 in the X direction DX.

[0079] Design layer 47 forms design D. Design D may include patterns. Patterns may include wood grain patterns or stone patterns. Patterns may include geometric patterns formed by patterns. Design D does not have to include patterns. Design D may include one or more figures, pictures, photographs, characters, marks, pictograms, letters, and numbers. Design D may display only a single color.

[0080] The design layer 47 may be formed by applying ink to a sheet forming the base layer 43. The ink may be applied to the sheet by various methods such as gravure printing, screen printing, offset printing, and inkjet printing. The design layer 47 may also be formed by transfer.

[0081] When design D includes multiple colors, multiple inks displaying different colors may be arranged on the design layer 47 according to design D. When design D includes a pattern, the design layer 47 may be formed by applying multiple types of inks displaying different colors onto a sheet. When design D includes only a single color, the design layer 47 may be formed by applying a single ink to a sheet with a uniform thickness.

[0082] The design layer 47 may include a binder resin and a colorant dispersed within the binder resin. The colorant may be a dye, a pigment, or a combination of a dye and a pigment. When the ink for forming the design layer 47 is colored with cyan (C), magenta (M), yellow (Y), and black (K), the dye may be an organic dye. When the ink for forming the design layer 47 is colored with cyan (C), magenta (M), yellow (Y), and black (K), the pigment may be an organic pigment or an inorganic pigment.

[0083] The pigments included in the design layer 47 may include one or more of the following: phthalocyanine pigments, quinacridone pigments, monoazo pigments, azo pigments, benzimidazolon pigments, carbon black, and aluminum pigments.

[0084] From the viewpoint of stably displaying design D, a lower limit may be set for the thickness of the design layer 47. From the viewpoint of suppressing the thickness of the decorative sheet 40 and stably displaying the light emitted from the light-emitting device 7, an upper limit may be set for the thickness of the design layer 47. The thickness of the design layer 47 may be 1 μm or more and 30 μm or less.

[0085] <<Support part 30>> Figure 8 is a perspective view showing the second surface 12 of the decorated molded body 10. Figure 8 shows the support portion 30. Figure 8 shows the base portion 31 and a plurality of protrusions 32 protruding from the base portion 31. Figure 9 shows a magnified view of a portion of the plurality of protrusions 32 shown in Figure 8.

[0086] As shown in Figure 10, the decorated molded body 10 includes a connection area CA of the base portion 31 and the protruding portion 32 on its first surface 11. The connection area CA is a part of the first surface 11. The connection area CA is the area obtained by projecting the connection portion CP of the base portion 31 and the protruding portion 32 onto the first surface 11 in a first direction D1. Figure 9 shows multiple connection portions CP. The decorated molded body 10 displays the design D in the connection area CA.

[0087] The support portion 30 in Figure 5 includes a thermoplastic resin 300 and a plurality of visible light absorbing materials 320 dispersed within the thermoplastic resin 300. The thermoplastic resin 300 includes a first portion 301 that constitutes the base portion 31 and a second portion 302 that constitutes the protruding portion 32. The first portion 301 and the second portion 302 are seamlessly connected. Therefore, the base portion 31 in Figure 5 includes a thermoplastic resin 300 and a plurality of visible light absorbing materials 320 dispersed within the thermoplastic resin 300. The protruding portion 32 in Figure 5 includes a thermoplastic resin 300 and a plurality of visible light absorbing materials 320 dispersed within the thermoplastic resin 300.

[0088] In the support portion 30 of Figure 5, the multiple visible light absorbing materials 320 are dispersed both within the first portion 301 and the second portion 302 of the thermoplastic resin 300. The support portion 30 includes the visible light absorbing material 320 in the protruding portion 32. The support portion 30 also includes the visible light absorbing material 320 in the base portion 31. The protruding portion 32 of Figure 5 is colored by the dispersion of the multiple visible light absorbing materials 320 within the second portion 302 of the thermoplastic resin 300. The base portion 31 of Figure 5 is colored by the dispersion of the multiple visible light absorbing materials 320 within the first portion 301 of the thermoplastic resin 300.

[0089] The visible light absorbing material 320 absorbs light with wavelengths between 380 nm and 750 nm. The visible light absorbing material 320 may contain pigments or dyes. The pigment may be a blue pigment such as a phthalocyanine pigment. The pigment may be a yellow pigment such as a quinacridone pigment or a monoazo pigment. The pigment may be a red pigment such as an azo pigment or a benzimidazolon pigment. The pigment may be a black pigment such as carbon black or titanium black. From the viewpoint of expanding the wavelength range of light absorbed, it is particularly preferable for the visible light absorbing material 320 to contain a black pigment.

[0090] The thermoplastic resin 300 may be formed from the injection resin 330. When the decorative portion 20 is a decorative sheet 40, the injection resin 330 may be welded to the decorative sheet 40. The injection resin 330 may be injected into a cavity formed in an injection molding apparatus. The thermoplastic resin 300 may also be formed by solidifying the injection resin 330 injected into the cavity.

[0091] When the thermoplastic resin 300 is formed from the injection resin 330, the visible light absorbing material 320 may be kneaded into the injection resin 330. The visible light absorbing material 320 may be dispersed within the first portion 301 and the second portion 302 of the thermoplastic resin 300 by being kneaded into the injection resin 330.

[0092] <Base section 31> The base portion 31 in Figure 5 extends along the decorative portion 20. In particular, the base portion 31 in Figure 5 extends along the decorative sheet 40. The base portion 31 is in contact with the second surface 42 of the decorative sheet 40. The base portion 31 has thickness in the first direction D1. In other words, the thickness direction of the base portion 31 is parallel to the first direction D1.

[0093] The base portion 31 in Figure 5 includes a first base region 311 and a second base region 312. The first base region 311 is the region facing the light-emitting device 7 in the first direction D1. In the illustrated base portion 31, the first base region 311 faces the light-emitting surface 8 of the light-emitting device 7. The second base region 312 is the region other than the first base region 311. That is, the second base region 312 is the region that does not face the light-emitting device 7 in the first direction D1. In Figure 5, the protruding portion 32 protrudes from the second base region 312 of the base portion 31.

[0094] From the viewpoint of stably supporting the decorative portion 20, a lower limit may be set for the thickness of the base portion 31, i.e., the dimension in the thickness direction. The thickness of the base portion 31 may be 0.7 mm or more, or 1.0 mm or more. From the viewpoint of suppressing the reduction in the amount of light transmitted from the decorative molded body 10, an upper limit may be set for the thickness of the base portion 31. The thickness of the base portion 31 may be 5.0 mm or less, or 4.0 mm or less. By setting such an upper limit for the thickness of the base portion 31, the decorative display system 5 including the decorative molded body 10 can clearly display the image IM.

[0095] The thickness of the components of the support portion 30, including the base portion 31 and the protruding portion 32, is determined by observing a cross-sectional image of the support portion 30 using a scanning transmission electron microscope (STEM). The thickness of the components of the support portion 30 is the arithmetic mean of five thickness measurements taken at five different locations.

[0096] <Protrusion 32> The decorated molded body 10 in Figures 8 and 9 includes a first protrusion 33 and a second protrusion 34 as protrusions 32. Figures 4 and 9 show the first protrusion 33 and the second protrusion 34. The first protrusion 33 and the second protrusion 34 have different shapes from each other. As shown in Figure 9, the amount of protrusion of the first protrusion 33 from the base portion 31 is greater than the amount of protrusion of the second protrusion 34 from the base portion 31.

[0097] The first protrusion 33 in Figures 8 and 9 is a mounting member 35 for attaching the decorative molded body 10 to the housing member 6. The decorative molded body 10 is attached to the support surface 60 of the housing member 6 at the first protrusion 33. The first protrusion 33 is provided with a through hole 33A that penetrates through the first protrusion 33. When the decorative molded body 10 is attached to the support surface 60 of the housing member 6, a mounting device (not shown) may pass through the through hole 33A.

[0098] The second protrusion 34 in Figures 8 and 9 is a rib 36. The support portion 30, by including the rib 36, suppresses deformation of the decorative molded body 10 against external forces. The support portion 30, by including the rib 36, can stabilize the shape of the decorative molded body 10. The support portion 30 may include multiple ribs 36, as shown in Figure 8.

[0099] Next, an example of a manufacturing method for the illustrated decorated molded body 10 will be described, mainly with reference to Figures 11 to 14. In the following example of a manufacturing method, the thermoplastic resin 300 of the support portion 30 is formed by injection resin 330.

[0100] First, an injection molding apparatus 90 is prepared as shown in Figure 11. The injection molding apparatus 90 includes a mold 100. The mold 100 in Figure 11 includes a first mold 110 and a second mold 120. The first mold 110 molds the decorated molded body 10 from the first surface 11 side. The second mold 120 molds the decorated molded body 10 from the second surface 12 side.

[0101] As shown in Figures 11 and 14, the mold 100 can take an open state in which the first mold 110 and the second mold 120 are separated from each other. As shown in Figures 12 and 13, the mold 100 can take a closed state in which the first mold 110 and the second mold 120 are in contact with each other. The first mold 110 and the second mold 120 are relatively movable so as to move closer to each other from the open state to the closed state. The first mold 110 and the second mold 120 are relatively movable so as to move further apart from each other from the closed state to the open state.

[0102] As shown in Figure 12, when the mold 100 is in a closed state, a cavity 200 is formed between the first mold 110 and the second mold 120. The first mold 110 includes a first cavity surface 210, which has a shape complementary to the first surface 11. The second mold 120 includes a second cavity surface 220, which has a shape complementary to the second surface 12. The cavity 200 is demarcated by the first cavity surface 210 of the first mold 110 and the second cavity surface 220 of the second mold 120.

[0103] As shown in Figure 15, the second cavity surface 220 includes a first region 221 and a second region 222. The first region 221 of the second cavity surface 220 has a shape complementary to the first region 121 of the second surface 12. The second region 222 of the second cavity surface 220 has a shape complementary to the second region 122 of the second surface 12. The second region 222 of the second cavity surface 220 shown in Figure 15 is recessed relative to the first region 221 of the second cavity surface 220 in an direction away from the first mold 110.

[0104] The mold 100 has a gate 130 leading to the cavity 200. In the illustrated example, the gate 130 is located on the second mold 120. The gate 130 is connected to a supply device (not shown). The supply device is a device that supplies injection resin 330. The injection resin 330 is supplied to the cavity 200 through the gate 130.

[0105] As shown in Figure 11, the decorative sheet 40 is transported into the mold 100. The decorative sheet 40 transported into the mold 100 is housed in the cavity 200 inside the mold 100. The decorative sheet 40 in Figure 11 is held in the first mold 110 with its first surface 41 in contact with the first mold 110. In the decorative sheet 40 held in the first mold 110, the second surface 42 faces the second mold 120.

[0106] As shown in Figure 11, the decorative sheet 40 may be formed before being transported into the mold 100. That is, the decorative sheet 40 may be pre-formed. The pre-formation method for the decorative sheet 40 may be vacuum forming, pressure forming, or bending.

[0107] Next, as shown in Figure 12, the mold 100 is closed. In the closed mold 100, a cavity 200 is formed between the first mold 110 and the second mold 120. The decorative sheet 40 is housed in the cavity 200 in Figure 12. The second surface 42 of the decorative sheet 40 housed in the cavity 200 faces the cavity 200.

[0108] Next, as shown in Figure 13, the molten injection resin 330 is injected into the cavity 200 through the gate 130. The injection resin 330 is cooled within the cavity 200. As it cools, the injection resin 330 solidifies while welded to the decorative sheet 40. From the solidified injection resin 330, a thermoplastic resin 300 is formed that is bonded to the decorative sheet 40.

[0109] Next, as shown in Figure 14, the mold 100 is opened. With the mold 100 in the open state, the first mold 110 and the second mold 120 separate from each other. The decorated molded body 10, including the decorative sheet 40 and the support part 30 joined to the decorative sheet 40, is removed from the cavity 200.

[0110] As described above, a decorative molded body 10 including the decorative part 20 and the support part 30 is obtained. Furthermore, a decorative display system 5 is obtained by placing the light-emitting device 7 on top of the decorative molded body 10. In the decorative display system 5, the support part 30 is located between the decorative part 20 and the light-emitting device 7. Furthermore, a decorative member 4 is obtained by housing the light-emitting device 7 in the housing member 6.

[0111] The operation of the illustrated decorative display system 5 will be explained. Specifically, the operation of the illustrated decorative display system 5 will be described.

[0112] The decorative display system 5 displays the design D using the decorative molded body 10, regardless of the state of the light-emitting device 7. The observer of the decorative display system 5 observes the design D by the reflected light of the light incident on the display surface 5a.

[0113] When the light-emitting device 7 is in the light-emitting state, it emits light from the light-emitting surface 8. At least a portion of the light emitted from the light-emitting surface 8 is incident on the second surface 12 of the decorated molded body 10. At least a portion of the light emitted from the light-emitting surface 8 is incident on the first region 121 of the second surface 12.

[0114] At least a portion of the light incident on the second surface 12 of the decorated molded body 10 passes through the support portion 30. Specifically, at least a portion of the light incident on the first region 121 of the second surface 12 passes through the base portion 31. The light that passes through the support portion 30 reaches the decorated portion 20. In the illustrated decorated display system 5, the light that passes through the support portion 30 is incident on the second surface 42 of the decorated sheet 40.

[0115] From the viewpoint of suppressing a decrease in the amount of light transmitted from the decorated molded body 10, a lower limit may be set for the total light transmittance per unit thickness in the base portion 31. The total light transmittance per unit thickness of the base portion 31 may be 30% or more, or 40% or more. The above-mentioned lower limit may be set particularly in the first base region 311. There is no particular upper limit for the total light transmittance per unit thickness of the base portion 31. The total light transmittance per unit thickness of the base portion 31 may be 80% or less, or 70% or less.

[0116] The total light transmittance per unit thickness of the base portion 31 is determined using a sample of the base portion 31 having a thickness of 3.0 mm. To determine the total light transmittance per unit thickness of the base portion 31 in the first base region 311, a sample taken in the first base region 311 is used.

[0117] A sample of the base portion 31 is taken from the decorated molded body 10. A plane is used to take the sample of the base portion 31. The total light transmittance per unit thickness of the base portion 31 is the arithmetic mean of five measurements of total light transmittance taken using the sample. The measurement method for the total light transmittance is as described above.

[0118] In the decorative section 20, light that reaches the transparent section 21 is transmitted through the decorative section 20. In the illustrated decorative display system 5, light that reaches the transparent section 21 is emitted from the first surface 41, i.e., the display surface 5a of the decorative display system 5, after passing through the base layer 43, bonding layer 44, and functional layer 45. In the decorative section 20, light that reaches the light-shielding section 22 is absorbed. In the illustrated decorative display system 5, light that reaches the light-shielding section 22 is absorbed by the light-shielding layer 46.

[0119] In the decorative sheet 40 shown in Figure 6, the light-shielding layer 46 can absorb light incident on the second surface 42. As a result, the light-shielding layer 46 reduces the proportion of light transmitted by the decorative sheet 40 among the light emitted from the first surface 41 in the light-shielding portion 22. The light-shielding layer 46 increases the proportion of light reflected from the design layer 47 among the light emitted from the first surface 41 in the transmissive portion 21. As a result, the decorative sheet 40 can clearly display the design D in the light-shielding portion 22.

[0120] The light emitted from the display surface 5a increases the brightness in the first region A1 of the decorative display system 5. The brightness in the first region A1 becomes greater than the brightness in the second region A2 due to the light emitted from the display surface 5a. As the brightness in the first region A1 becomes greater than the brightness in the second region A2, the image IM becomes observable in the first region A1. In the illustrated decorative display system 5, circular, triangular, and square shapes can be observed as image IM in the first region A1.

[0121] When the light-emitting device 7 is extinguished, it stops emitting light from the light-emitting surface 8. When the light-emitting device 7 is extinguished, the decorative display system 5 displays design D in either the first region A1 or the second region A2. The decorative display system 5 can conceal the light-emitting device 7 with design D. The decorative display system 5 can harmonize with the surrounding environment with design D. As mentioned above, the decorative display system 5 displays design D in the second region A2 regardless of the state of the light-emitting device 7.

[0122] A conventional decorative molded body that transmits light emitted from a light-emitting device may include a decorative portion and a support portion in that order, from the first surface to the second surface. In the decorative molded body, for various reasons such as mounting the decorative molded body and suppressing deformation of the decorative molded body, a protruding portion is provided in the support portion that extends from the base portion. The protruding portion may function as the mounting member or rib described above.

[0123] When a protrusion is provided on a conventional decorative molded body 500 that transmits light emitted from a light-emitting device, the connection area CAA is brightly illuminated by ambient light, as shown in Figure 22. The connection area CAA is a part of the first surface. The connection area is the area projected onto the first surface where the connection portion of the base and the protrusion is located. The bright illumination of the connection area CAA can degrade the design displayed on the decorative molded body.

[0124] In decorative molded articles, the details of the mechanism by which connection areas are displayed brightly are unknown, but the following is presumed. This disclosure is not bound by the following presumption.

[0125] Light enters the first surface of the decorative molded body. A portion of the light that enters the first surface travels through the molded body and reaches the second surface. A portion of the light that enters the first surface reaches either the first region of the second surface or the second region of the second surface. A portion of the light that reaches the second surface is reflected by the second surface. A portion of the light reflected by the second surface travels through the molded body and is emitted from the first surface.

[0126] In a decorated molded body, first light and second light are emitted from the first surface. First light is light that is incident on the first surface, reflected in the first region of the second surface, and emitted again from the first surface. Second light is light that is incident on the first surface, reflected in the second region of the second surface, and emitted again from the first surface. The first region of the second surface is a region formed by the base portion of the second surface. The second region of the second surface is a region formed by the protrusions of the second surface. Second light is mainly emitted from the connecting region. First light passes through the base portion. On the other hand, second light passes through both the base portion and the protrusions. The optical path length of second light is longer than the optical path length of first light.

[0127] Light traveling through the support structure is diffused by foreign matter contained within it. A portion of the diffused light is emitted from the first surface. Because the optical path length of the second light is longer than that of the first light, the amount of diffused light in the second light is greater than the amount of diffused light in the first light. Therefore, the amount of diffused light emitted from the connection region is greater than the amount of diffused light emitted from regions other than the connection region. As a result, the connection region is illuminated by observing the diffused light emitted from it.

[0128] The inventors of this invention have found that in a decorative molded body constituting a decorative display system, the protruding portion is colored. Specifically, in the illustrated decorative molded body 10, the support portion 30 includes a visible light absorbing material 320 at the protruding portion 32. In the illustrated decorative molded body 10, light incident on the first surface 11 and directed toward the protruding portion 32 is absorbed by the visible light absorbing material 320. This reduces the amount of light emitted from the connection area. Therefore, the illustrated decorative molded body 10 can display the connection area brightly and suppress deterioration of the design D of the decorative molded body 10.

[0129] Furthermore, in the protrusion 32 of Figure 10, the visible light absorbing material 320 is dispersed within the thermoplastic resin 300. The protrusion 32 includes the thermoplastic resin 300 and a plurality of visible light absorbing materials 320 dispersed within the thermoplastic resin 300. The decorative molded body 10 of Figure 10 can effectively suppress the diffusion of light traveling through the protrusion 32 due to the plurality of visible light absorbing materials 320 dispersed within the thermoplastic resin 300. The visible light absorbing material 320 dispersed within the thermoplastic resin 300 can reduce the amount of light incident on the first surface 11 and reaching the second region 122 of the second surface 12, and the amount of light reflected in the second region 122 of the second surface 12. Therefore, the emission of diffused light in the connection region can be more effectively reduced by the visible light absorbing material 320 dispersed within the thermoplastic resin 300.

[0130] Furthermore, from the viewpoint of effectively absorbing visible light at the protrusion 32, it is preferable that the visible light absorbing material 320 contains a black pigment. The black pigment may be carbon black or titanium black. When the visible light absorbing material 320 contains a black pigment, the wavelength range of light absorbed by the visible light absorbing material 320 can be expanded. Therefore, by including a black pigment in the visible light absorbing material 320, the emission of diffuse light in the connection region can be reduced more effectively.

[0131] From the viewpoint of suppressing the diffusion of light incident on the first surface 11 in the second region 122 of the second surface 12, the arithmetic mean roughness Sa2 of the second surface 12 in the second region 122 may be smaller than the arithmetic mean roughness Sa1 in the first region 121. By suppressing the diffusion of light in the second region 122, the emission of diffuse light in the connection region CA can be suppressed.

[0132] Arithmetic mean roughness Sa is an index of surface roughness. Arithmetic mean roughness Sa is a three-dimensional arithmetic mean roughness as defined in ISO 25178. Arithmetic mean roughness Sa is calculated using the following formula (i), where the X and Y axes are orthogonal coordinates on the reference surface, the roughness surface is Z(x,y), and the dimensions of the reference surface are Lx and Ly. In formula (i), A = Lx × Ly.

number

[0133] The arithmetic mean roughness Sa shall be the value obtained by an atomic force microscope (AFM). A sample for measurement shall be cut from the target base portion 31 and protrusion portion 32. The size of the sample for measurement shall be a 5 mm × 5 mm square. The sample for measurement shall be visually inspected to ensure that there are no foreign matter or scratches. The shape of the surfaces constituting the second surface 12 shall be measured using an atomic force microscope for five measurement areas that are far apart from each other. The measurement areas shall be a 10 μm × 10 μm square.

[0134] A Shimadzu Corporation "SPM-9700" atomic force microscope can be used. A NanoWorld NCHR (resonance frequency: 320 kHz, spring constant 42 N / m) cantilever can be used. The surface shape of the sample can be measured using the "SPM Manager" software included with the atomic force microscope in On-Line (measurement) mode. Measurement conditions can be set as follows: - Measurement mode: Phase - Scanning area: 10 μm × 10 μm - Scanning speed: 2.0~2.5Hz (using a 10μm scanner) - Pixel count: 512×512

[0135] As described above, the support portion 30 can be formed from injection resin 330 by an injection molding apparatus 90. When the support portion 30 is formed from injection resin 330, the arithmetic mean roughness of the second surface 12 may be adjusted by adjusting the roughness of the second cavity surface 220. In the second mold 120, the second cavity surface 220 may be processed such that the roughness of the second region 222 is less than the roughness of the first region 221.

[0136] In the embodiment described above, the decorative molded body 10 includes a decorative portion 20 and a support portion 30 in that order, from the first surface 11 to the second surface 12. The decorative molded body 10 is transparent to visible light. The support portion 30 includes a base portion 31 that supports the decorative portion 20 and a protruding portion 32 that protrudes from the base portion 31. The base portion 31 is located between the decorative portion 20 and the protruding portion 32. The support portion 30 includes a visible light absorbing material 320 in the protruding portion 32.

[0137] Furthermore, in the embodiment described above, the decorative molded body 10 transmits light emitted from the light-emitting device 7. The decorative molded body 10 includes a decorative portion 20 and a support portion 30 in that order, from the first surface 11 to the second surface 12. The support portion 30 includes a base portion 31 that supports the decorative portion 20 and a protruding portion 32 that protrudes from the base portion 31. The base portion 31 is located between the decorative portion 20 and the protruding portion 32. The support portion 30 includes a visible light absorbing material 320 in the protruding portion 32.

[0138] Furthermore, in the embodiment described above, the decorative display system 5 includes a decorative molded body 10 and a light-emitting device 7 that overlaps the decorative molded body 10. The decorative molded body 10 includes a decorative portion 20 and a support portion 30 in that order, from the first surface 11 to the second surface 12. The decorative molded body 10 transmits light emitted from the light-emitting device 7. It includes a base portion 31 that supports the decorative portion 20 and a protruding portion 32 that protrudes from the base portion 31. The base portion 31 is located between the decorative portion 20 and the protruding portion 32. The support portion 30 includes a visible light absorbing material 320 at the protruding portion 32.

[0139] According to one embodiment of the present disclosure, light incident on the first surface 11 of the decorative molded body 10 is absorbed by the protruding portion 32. As a result, the amount of reflected light emitted from the connection region CA on the first surface 11 is reduced. Therefore, when the first surface 11 of the decorative molded body 10 is observed, the conspicuous observation of the connection region CA can be suppressed. As a result, deterioration of the design of the decorative molded body 10 can be suppressed.

[0140] Although one embodiment has been described by referring to a specific example, the above example is not limited to this embodiment. One embodiment can be implemented in various examples other than the one described above.

[0141] A modified example of the above-described embodiment will be explained with reference to Figures 16 to 19. In Figures 16 to 10, the same reference numerals are used for the same components as in the embodiment shown in Figures 1 to 15. Detailed descriptions of the components with the same reference numerals in Figures 16 to 19 may be omitted.

[0142] In the embodiment described above, the decorative display system 5 was applied to the mobile body 1. However, the application of the decorative display system 5 is not limited to the mobile body 1. The decorative display system 5 may also be applied to buildings such as houses. In buildings, the decorative display system 5 may be applied to interior fixtures such as walls, doors, and ceilings.

[0143] The support portion 30 described above included a thermoplastic resin 300 and a visible light absorbing material 320 dispersed within the thermoplastic resin 300. The protruding portion 32 also included a thermoplastic resin 300 and a visible light absorbing material 320 dispersed within the thermoplastic resin 300. As shown in Figure 16, the protruding portion 32 may also include a thermoplastic resin 300 and a colored layer 37 superimposed on the thermoplastic resin 300. The colored layer 37 of the protruding portion 32 may also contain the visible light absorbing material 320. In the protruding portion 32 of Figure 16, the colored layer 37 constitutes the second region 122 of the second surface 12. The colored layer 37 may be formed by applying a paint containing the visible light absorbing material 320 to the thermoplastic resin 300. According to the configuration shown in Figure 16, even if some of the multiple protruding portions 32 are not in contact with the housing member 6, deterioration of the design due to the presence of the protruding portions 32 can be suppressed.

[0144] The base portion 31 described above included a first base region 311 that overlapped with the light-emitting device 7 in a first direction D1. The base portion 31 included a visible light absorbing material 320 in the first base region 311. The support portion 30 may include the visible light absorbing material 320 in the protruding portion 32. As shown in Figure 17, the base portion 31 does not have to include the visible light absorbing material 320 in the first base region 311. The base portion 31 may include the visible light absorbing material 320 in the second base region 312. The support portion 30 may include parts of different colors. The support portion 30 in Figure 17 may be formed by two-color molding. By not including the visible light absorbing material 320 in the first base region 311 of the base portion 31, the absorption of light emitted from the light-emitting device 7 by the base portion 31 is suppressed. As a result, the decorative display system 5, including the decorative molded body 10 in Figure 18, can clearly display the image IM. According to the configuration shown in Figure 17, even if some of the multiple protrusions 32 do not come into contact with the housing member 6, the deterioration of the design due to the presence of the protrusions 32 can be suppressed.

[0145] From the viewpoint of suppressing the absorption of light emitted from the light-emitting device 7, the total light transmittance per unit thickness of the base portion 31 may be 30% or more, or 40% or more, in the first base region 311. The upper limit of the total light transmittance per unit thickness of the base portion 31 is not particularly limited in the first base region 311. The total light transmittance per unit thickness of the base portion 31 may be 100% or less, or 95% or less, in the first base region 311. The method for determining the total light transmittance per unit thickness of the base portion 31 is as described above.

[0146] The decorative portion 20 described above included a transparent portion 21 and a light-shielding portion 22. Design D was formed on the light-shielding portion 22. Design D was not formed on the transparent portion 21. The decorative portion 20 does not have to include the light-shielding portion 22, as shown in Figure 18. The decorative portion 20 in Figure 18 is composed of a decorative sheet 40. The decorative sheet 40 in Figure 18 includes a base layer 43, a design layer 47, and a functional layer 45 in this order, from the second surface 42 to the first surface 41. The decorative sheet 40 does not have to include a light-shielding layer 46.

[0147] The decorative portion 20 does not necessarily have to be made of a decorative sheet 40. The decorative portion 20 may be formed by applying paint to the support portion 30. The base portion 31 may be located between the paint film formed by the paint and the protruding portion 32.

[0148] In the decorative member 4 described above, the housing member 6 was made up of members other than the decorative member 4 of the dashboard 3. The housing member 6 may include a housing 600 having an opening 601, as shown in Figure 19. The decorative molded body 10 in Figure 19 covers the opening 601 of the housing 600. The light-emitting device 7 in Figure 19 is housed in the internal space 605. In the decorative molded body 10 in Figure 19, the protruding portion 32 of the support portion 30 is housed in the internal space 605 of the housing 600.

[0149] The housing 600 in Figure 19 includes a plurality of wall portions 610. The illustrated housing 600 includes a bottom portion 611 and a plurality of side portions 612 rising from the bottom portion 611 as the plurality of wall portions 610. The internal space 605 in the housing 600 in Figure 19 is the space enclosed by the bottom portion 611 and the side portions 612. In the decorative member 4 in Figure 19, the bottom portion 611 supports the light-emitting device 7. The side portions 612 support the decorative molded body 10.

[0150] The housing 600 may have visible light shielding properties. By having visible light shielding properties, the incidence of light into the internal space 605 is suppressed. Specifically, a housing 600 with visible light shielding properties suppresses the incidence of light into the internal space 605 through the wall portion 610. The internal space 605 is maintained in a state that is darker than the outside of the decorative member 4. By having visible light shielding properties, the decorative member 4 shown in the figure can suppress light from outside the decorative member 4 from being incident on the second surface 12 of the decorative molded body 10. As a result, in the decorative display system 5 of Figure 19, the image IM can be stably displayed by the light emitted from the light-emitting device 7.

[0151] The statement that the housing 600 "has visible light shielding properties" means that the maximum visible light transmittance of the wall portion 610 constituting the housing 600 is 1% or less. In a housing 600 having visible light shielding properties, the maximum visible light transmittance of the wall portion 610 may be 0.1% or less.

[0152] The housing 600 has visible light shielding properties when the maximum value of 10 measurements of total light transmittance at each wall 610 is 1% or less in the wavelength range of 380 nm to 750 nm. In the housing 600 of Figure 19, each wall 610 refers to the bottom 611 and each of the four side sections 612 rising from the bottom 611. The maximum value of 10 measurements of total light transmittance at each wall 610 may be 0.2% or less in the wavelength range of 380 nm to 750 nm. The method for obtaining the measurement values ​​of total light transmittance at each wall 610 is as described above.

[0153] As shown in Figures 20 and 21, the decorative portion 20 may include a linear transparent portion 21 and a linear light-shielding portion 22. In the decorative portion 20 of Figures 20 and 21, the linear transparent portion 21 and the linear light-shielding portion 22 are arranged alternately in the Y direction DY. In the decorative portion 20 of Figures 20 and 21, each of the transparent portion 21 and the light-shielding portion 22 extends linearly in the Z direction DZ.

[0154] The linear transparent portion 21 and the linear light-shielding portion 22 may extend in a straight line, as shown in Figure 20. In the decorative portion 20 of Figure 20, each of the linear transparent portion 21 and the linear light-shielding portion 22 extends in a straight line in the Z direction DZ. It may also be formed by moving an irradiation device (not shown) irradiating with a laser, and the decorative molded body 10 in a straight line in the Z direction DZ relative to each other.

[0155] In the decorative section 20 of Figure 20, the multiple transparent sections 21 are regularly arranged in the Y direction DY with an array pitch P. Each of the multiple transparent sections 21 has a width W in the Y direction DY. Because the multiple transparent sections 21 are regularly arranged in the Y direction DY, and each of the multiple transparent sections 21 extends linearly in the Z direction DZ, the decorative molded body 10 of Figure 20 can uniformly transmit light emitted from the light-emitting device 7. Therefore, the display system 1 of Figure 20 can suppress the occurrence of unevenness in the image IM.

[0156] From the viewpoint of stably displaying design D and stably suppressing the occurrence of unevenness in image IM, a numerical range may be provided for the width W of the linear transparent portion 21. The width W of the linear transparent portion 21 may be 15 μm or more and 140 μm or less. From a similar viewpoint, a numerical range may be provided for the arrangement pitch P of the linear transparent portion 21. The arrangement pitch P of the linear transparent portion 21 may be 30 μm or more and 300 μm or less.

[0157] The linear transparent portion 21 may be composed of a plurality of unit transparent portions 23, as shown in Figure 21. In Figure 21, the unit transparent portions 23 are shown as a first unit transparent portion 231, a second unit transparent portion 232, and a third unit transparent portion 233. Each of the first unit transparent portion 231, the second unit transparent portion 232, and the third unit transparent portion 233 has a circular shape when observed from the X direction DX.

[0158] In the linear transparent portion 21 of Figure 21, the first unit transparent portion 231 and the second unit transparent portion 232 are adjacent to each other in the Z direction DZ. The second unit transparent portion 232 and the third unit transparent portion 233 are adjacent to each other in the Z direction DZ. Each of the multiple unit transparent portions 23 may be formed by laser etching. Multiple unit transparent portions 23 may be formed by irradiating a laser at different positions on the decorated molded body 10. As an example, the linear transparent portion 21 shown in Figure 21 may be formed by moving a laser irradiation device (not shown) and the decorated molded body 10 relative to each other in the Z direction DZ.

[0159] As shown in Figure 21, the unit transparent portion 23 may include a portion that overlaps with other adjacent unit transparent portions 23. The first unit transparent portion 231 in Figure 21 includes a portion that overlaps with the second unit transparent portion 232. The second unit transparent portion 232 in Figure 21 includes a portion that overlaps with the first unit transparent portion 231 and a portion that overlaps with the third unit transparent portion 233.

[0160] In the decorative portion 20 shown in Figure 21, the width of the linear transparent portion 21 changes in the Z direction DZ. Figure 21 shows the largest width W1 and the smallest width W2 of the linear transparent portion 21.

[0161] From the viewpoint of stably displaying design D, a lower limit may be set for the width W2 of the linear transparent portion 21. In the decorative portion 20 of Figure 21, the width W2 of the linear transparent portion 21 may be 15 μm or more. From a similar viewpoint, a lower limit may be set for the pitch P of the linear transparent portion 21. In the decorative portion 20 of Figure 21, the pitch P of the linear transparent portion 21 may be 30 μm or more.

[0162] From the viewpoint of reliably suppressing the occurrence of unevenness in the image IM, an upper limit may be set on the width W1 of the linear transparent portion 21. In the decorative portion 20 of Figure 21, the width W1 of the linear transparent portion 21 may be 140 μm or less. From a similar viewpoint, an upper limit may be set on the pitch P of the linear transparent portion 21. In the decorative portion 20 of Figure 21, the pitch P of the linear transparent portion 21 may be 300 μm or less. [Explanation of Symbols]

[0163] 1: Mobile body, 2: Automobile, 4: Decorative member, 5: Decorative display system, 6: Housing member, 7: Light-emitting device, 8: Light-emitting surface, 10: Decorative molded body, 11: First surface, 12: Second surface, 20: Decorative part, 21: Transmitting part, 22: Light-shielding part, 30: Support part, 31: Base part, 32: Protruding part, 40: Decorative sheet, 300: Thermoplastic resin, 311: First base area, 312: Second base area, 320: Visible light absorbing material, 600: Housing, 601: Opening, CA: Connection area, D: Design

Claims

1. A decorative molded body having visible light transmittance, From the first surface to the second surface, the decorative part and the support part are arranged in this order. The support portion includes a base portion that supports the decorative portion and a protruding portion that extends from the base portion. The base portion is located between the decorative portion and the protruding portion, The support portion is a decorative molded body in which a visible light absorbing material is included in the protruding portion.

2. The decorative molded article according to claim 1, wherein the protruding portion comprises a thermoplastic resin and the visible light absorbing material dispersed within the thermoplastic resin.

3. The decorative molded article according to claim 1, wherein the visible light absorbing material includes a black pigment.

4. The decorated molded article according to claim 1, wherein the total light transmittance per unit thickness of the base portion is 30% or more and 80% or less.

5. The second surface includes a first region formed by the base portion and a second region formed by the protruding portion, The decorated molded article according to claim 1, wherein the arithmetic mean roughness of the second surface in the second region is smaller than the arithmetic mean roughness of the second surface in the first region.

6. The decorative portion includes a transparent portion and a light-shielding portion. The decorative part displays a design in the light-shielding part, as described in claim 1.

7. A decorative molded body that transmits light emitted from a light-emitting device, From the first surface to the second surface, the decorative part and the support part are arranged in this order. The support portion includes a base portion that supports the decorative portion and a protruding portion that extends from the base portion. The base portion is located between the decorative portion and the protruding portion, The support portion is a decorative molded body in which a visible light absorbing material is included in the protruding portion.

8. The base portion includes a first base region that overlaps with the light-emitting device. The decorated molded article according to claim 7, wherein the total light transmittance per unit thickness of the base portion is 30% or more and 100% or less in the first base region.

9. A decorated molded body according to any one of claims 1 to 8, The decorated molded body is further equipped with a light-emitting device that overlaps the second surface, The support portion is located between the light-emitting device and the decorative portion, forming a decorative display system.

10. A decorative molded body comprising a decorative portion and a support portion in that order, from the first surface to the second surface, The decorated molded body is further equipped with a light-emitting device that overlaps the second surface, The decorated molded body transmits light emitted from the light-emitting device, The support portion includes a base portion that supports the decorative portion and a protruding portion that extends from the base portion. The base portion is located between the decorative portion and the protruding portion, The support portion includes a visible light absorbing material in the protruding portion, in a decorative display system.

11. The decorative display system according to claim 9, A decorative member comprising a housing member for housing the light-emitting device.

12. The housing member includes a housing having an opening, The decorative molded body covers the opening, The decorative member according to claim 11, wherein the light-emitting device and the protruding portion are housed in the housing.

13. The casing is a decorative member according to claim 12, having visible light shielding properties.

14. A mobile body including the decorative member described in claim 11.

Images