Decorative member and method for manufacturing decorative member

Abstract

A decorative member according to one embodiment of the present invention is provided with: a wooden veneer having a plurality of through-holes through which light from the rear surface side is transmitted to the front surface side; a transparent reinforcing layer laminated on the back surface side of the single plate; and a coating layer which is laminated on the surface of the single plate and fills the inside of the through hole.

Description

[0001] This application is a divisional application of the invention patent application filed on July 27, 2018, with application number 201880051470.7 and title "Decorative Components and Method for Manufacturing Decorative Components". Technical Field

[0002] This invention relates to decorative parts and methods for manufacturing decorative parts. Background Technology

[0003] For example, in the interior of automobiles, decorative components such as panels with wood grain finishes are used. Furthermore, there are cases where such decorative components are integrated with elements such as warning lights to display text information.

[0004] For example, Japanese Patent Application Publication No. 2005-62441 discloses a display device having a plate in which multiple LEDs (light emitters) are arranged in an array or in the shape of text or images, and a sheet component disposed in front of the plate and allowing light from the LEDs to pass through. The sheet component has a transparent synthetic resin substrate, a black coating layer formed on one side of the substrate, and an image display layer with a wood grain pattern printed on the other side of the substrate, and light-emitting holes (through holes) are regularly provided on its entire surface.

[0005] In the display device described in the aforementioned announcement, the wood grain pattern is visible when the LED is off, and the text or graphics depicted by the luminous LED are visible when the LED is on. However, this display device emits light from the LED through a tiny aperture, resulting in a narrow viewing angle. The text or graphics depicted by the LED are difficult to clearly discern unless viewed directly from the front of the aperture. While increasing the aperture diameter can increase the viewing angle, this also causes the aperture to become more prominent when the LED is off, degrading the device's appearance.

[0006] Existing technical documents

[0007] Patent documents

[0008] Patent Document 1: Japanese Patent Application Publication No. 2005-62441 Summary of the Invention

[0009] The technical problem that the invention aims to solve

[0010] In view of the above problems, the technical problem to be solved by the present invention is to provide a decorative component with a wide viewing angle that allows light to be seen from its rear side, and a method for manufacturing the decorative component.

[0011] Technical solutions for solving technical problems

[0012] A decorative component of one embodiment of the present invention, made to solve the above-mentioned technical problems, comprises: a wooden veneer having a plurality of through holes that allow light from the back side to pass through to the surface side; a transparent reinforcing layer laminated on the back side of the veneer; and a coating layer laminated on the surface of the veneer and filling the interior of the through holes.

[0013] Furthermore, another aspect of the present invention provides a method for manufacturing a decorative component comprising: a step of irradiating a laser to form a plurality of through holes in a wooden veneer; a step of laminating a transparent reinforcing layer on the back side of the veneer on which the through holes are formed; and a step of applying a coating to the surface of the veneer on which the reinforcing layer is laminated. Attached Figure Description

[0014] Figure 1 This is a schematic cross-sectional view of a decorative component according to one embodiment of the present invention.

[0015] Figure 2 It means Figure 1 A flowchart outlining the manufacturing sequence of the decorative components.

[0016] Figure 3 This invention is related to Figure 1 Schematic cross-sectional views of decorative components in different implementations. Detailed Implementation

[0017] Hereinafter, embodiments of the present invention will be described in detail with appropriate reference to the accompanying drawings.

[0018] One aspect of the decorative component of the present invention comprises: a wooden veneer having a plurality of through holes that allow light from the back side to pass through to the surface side; a transparent reinforcing layer laminated on the back side of the veneer; and a coating layer laminated on the surface of the veneer and filling the interior of the through holes.

[0019] In this decorative component, the coating layer may contain a light-diffusing agent.

[0020] In this decorative component, the light diffusing agent content as the coating layer is preferably 5% by mass or more and 15% by mass or less.

[0021] Preferably, the gloss level of the coating layer is 1 or higher and 30 or lower.

[0022] In this decorative component, it is preferable that the average diameter of the through hole on the surface of the single panel is 0.10 mm or more and 0.40 mm or less, and that the through hole has an opening ratio of 3% or more and 20% or less.

[0023] In this decorative component, the through hole can be tapered.

[0024] The decorative component further includes a masking layer that is stacked on the back side of the reinforcing layer and partially blocks light from the back side to the surface side.

[0025] The decorative component may further include a light-emitting element on the back side of the aforementioned panel that illuminates the aforementioned light.

[0026] Furthermore, another aspect of the present invention provides a method for manufacturing a decorative component comprising: a step of irradiating a wooden veneer with a laser to form a plurality of through holes; a step of laminating a transparent reinforcing layer on the back side of the veneer on which the through holes are formed; and a step of applying a coating to the surface of the veneer on which the reinforcing layer is laminated.

[0027] It should be noted that "filling into the interior of the through hole" means that it exists continuously within the through hole, without needing to completely fill the interior space of the through hole. Furthermore, "average aperture" represents the diameter equivalent to a circle. It also represents the average aperture of the surface-side openings of multiple through holes within the through hole forming region. Moreover, "aperture ratio achieved through the through hole" represents the proportion of the surface-side opening area of ​​the through holes within the polygon connecting the centers of the through holes at the outer edge of the through hole forming region, relative to the area of ​​that polygon. Hereinafter, the aperture ratio achieved through the through hole will be simply referred to as the aperture ratio. "Specular gloss" is a value measured according to JIS-Z8741 (1997) at an incident angle of 60 degrees.

[0028] The decorative component of one aspect of the present invention and the decorative component obtained by the manufacturing method of the decorative component of another aspect of the present invention, by forming a plurality of through holes on a single sheet, enable light (e.g., light from a light-emitting element) to pass through. Furthermore, by laminating a coating layer on the surface of the single sheet and filling the interior of the through holes with the coating layer, the decorative component enables the light emitted from the through holes to diffuse, thereby increasing the viewing angle for light from its rear side.

[0029] [First Implementation]

[0030] Figure 1 This refers to a decorative component according to one embodiment of the present invention. This decorative component can be used, for example, as an interior panel of a car (e.g., a door panel, a device cover for the center console, a decorative cover for the dashboard, etc.), and can also function as an alarm display for seat belts, door locks, etc., or as a display device for air conditioning, audio, etc.

[0031] The decorative component comprises a wooden veneer 1, a transparent reinforcing layer 2 laminated on the back side of the veneer 1, a coating layer 3 laminated on the surface of the veneer 1, a masking layer 4 laminated on the back side of the reinforcing layer 2, a touch sensor 5 disposed on the back side of the masking layer 4, and a light-emitting element 6 disposed on the further back side of the touch sensor 5.

[0032] <Singleboard>

[0033] The single panel 1 has multiple through holes 7 that allow light from the light-emitting element 6 to be transmitted to the surface side. A coating layer 3 is filled inside the through holes 7 in a manner that fills the surface of the reinforcing layer 2.

[0034] As the material for veneer 1, for example, rotary-cut veneer obtained by peeling the bark from a log and cutting it circumferentially, sawn veneer obtained by cutting the log with a saw, or planed veneer obtained by cutting the log with a sharp tool can be used. Rotary-cut veneer can achieve a width exceeding the thickness of the log, thus allowing for larger veneers at a lower cost. Therefore, by using rotary-cut veneer as the veneer, the size of the decorative component can be increased more easily and at a lower cost. Furthermore, by using rotary-cut veneer as the veneer, deformation of the decorative component caused by changes in humidity and time can be suppressed. When rotary-cut veneer is used as the veneer, the decorative component closely resembles the grain of natural wood, resulting in more stable quality. On the other hand, by using sawn or planed veneer as the veneer, the vibration characteristics of the decorative component can be made to resemble the straight grain of natural wood, which is preferably used as a soundboard for musical instruments.

[0035] There are no particular restrictions on the type of wood used for veneer 1; any wood that can achieve the desired design can be selected, such as walnut, maple, and ash.

[0036] The lower limit for the average thickness of veneer 1 is preferably 0.10 mm, more preferably 0.15 mm. On the other hand, the upper limit for the average thickness of veneer 1 is preferably 2.0 mm, more preferably 1.0 mm. When the average thickness of veneer 1 is lower than the lower limit, there are problems such as processing becoming more difficult, wood grain becoming less distinct, and insufficient design flexibility. Conversely, when the average thickness of veneer 1 exceeds the upper limit, the coating does not completely fill the through holes 7, thereby preventing the light from the light source 6 from scattering over a wide angle, resulting in insufficient viewing angle.

[0037] (Through hole)

[0038] Preferably, the through holes 7 of the single plate 1 are formed such that the central axis extends in the thickness direction of the single plate 1. Furthermore, it is preferable that a plurality of through holes 7 are regularly formed over a large area at a constant spacing. The plurality of through holes 7 can be arranged as equally spaced square grid points, or as equally spaced hexagonal grid points at 60° intervals. Moreover, depending on the orientation, the plurality of through holes 7 can be arranged with different intervals.

[0039] Furthermore, the through hole 7 can be formed in a conical shape. By making the through hole 7 conical, the viewing angle of the decorative component can be expanded. In the decorative component of this embodiment, the through hole 7 is formed in a conical shape with an increased diameter toward the rear side. In this way, by making the through hole 7 conical with an increased diameter toward the rear side, the opening of the through hole 7 on the surface of the single panel 1 becomes smaller, the viewing angle can be increased, and the through hole 7 becomes less noticeable.

[0040] The lower limit of the average diameter of the through holes 7 on the surface of the single panel 1 is preferably 0.10 mm, more preferably 0.15 mm. On the other hand, the upper limit of the average diameter of the through holes 7 on the surface of the single panel 1 is preferably 0.40 mm, more preferably 0.30 mm. When the average diameter of the through holes 7 on the surface of the single panel 1 is lower than the lower limit, it is difficult to continuously form the coating layer 3 inside the through holes 7. Conversely, when the average diameter of the through holes 7 on the surface of the single panel 1 exceeds the upper limit, the through holes 7 become noticeable when the light-emitting body 6 is turned off, which degrades the design of the decorative component.

[0041] The lower limit for the surface aperture ratio within the through-hole forming area of ​​veneer 1 is preferably 3%, more preferably 5%. On the other hand, the upper limit for the surface aperture ratio within the through-hole forming area of ​​veneer 1 is preferably 20%, more preferably 15%, and even more preferably 10%. When the surface aperture ratio within the through-hole forming area of ​​veneer 1 is lower than the aforementioned lower limit, the amount of light passing through the through-hole 7 decreases, resulting in insufficient visibility when the light-emitting element 6 of the decorative component emits light. Conversely, when the surface aperture ratio within the through-hole forming area of ​​veneer 1 exceeds the aforementioned upper limit, the texture of wood cannot be obtained when the light-emitting element 6 is extinguished.

[0042] As described above, in this decorative component, relative to the veneer 1, there are a plurality of through holes 7 with an average diameter within a preferred range, which can impart an opening ratio within a preferred range. As a result, in this decorative component, the visibility of the light-emitting element 6 when it is emitting light can be fully obtained, and the through holes 7 also become inconspicuous when the light-emitting element 6 is turned off, without affecting the texture of the wood.

[0043] Multiple through holes 7 arranged in the aforementioned square grid, hexagonal grid, or similar configurations are spaced appropriately apart. The average value of the spacing (distance) between these through holes 7 is called the "average center spacing." The "average center spacing" refers to the average distance between the center of each through hole 7 and the center of the next through hole 7 adjacent to it with the shortest spacing. The range of the aforementioned average center spacing can be obtained by combining the average diameter of the aforementioned preferred range and the aperture ratio of the multiple through holes 7 in the aforementioned preferred configuration.

[0044] On the other hand, from the viewpoint of its functional effect, a preferred range for the aforementioned average center-to-center spacing can be set in this decorative component. The lower limit of the average center-to-center spacing of the through-holes 7 is preferably 0.3 mm, more preferably 0.4 mm. On the other hand, the upper limit of the average center-to-center spacing of the through-holes 7 is preferably 1.0 mm, more preferably 0.8 mm. When the average center-to-center spacing of the through-holes 7 is lower than the lower limit, there is a problem that the through-holes 7 are difficult to form, the strength of the single panel 1 is insufficient, and the yield rate during the manufacturing of this decorative component decreases. When the average center-to-center spacing of the through-holes 7 exceeds the upper limit, the amount of light transmitted through the through-holes 7 decreases, resulting in insufficient visibility of the light-emitting element 6 of this decorative component when it emits light.

[0045] The lower limit of the taper of the through hole 7 is preferably 1°, more preferably 2°. On the other hand, the upper limit of the taper of the through hole 7 is preferably 50°, more preferably 45°. When the taper of the through hole 7 is lower than the lower limit, there is a problem that the effect of increasing the viewing angle is insufficient. Conversely, when the taper of the through hole 7 exceeds the upper limit, adjacent through holes 7 are too close to each other and the center spacing of the through holes 7 cannot be reduced, resulting in insufficient visibility when the light-emitting element 6 emits light.

[0046] <Reinforcement Layer>

[0047] The reinforcing layer 2 is formed of a transparent resin composition, with resin as the main component. The resin composition forming the reinforcing layer 2 enters the through-hole 7, thereby forming a coated surface with a layered coating 3 inside the through-hole 7. As a result, the viewing angle of the decorative component can be increased by light scattering through the thin coating 3 near the surface of the through-hole 7.

[0048] The main component of the reinforcing layer 2 is preferably a thermoplastic resin, such as acrylic resin with excellent transparency, polystyrene with excellent processability, and polycarbonate with excellent strength. The reinforcing layer 2 can have multiple layers, for example, like a double-layer structure of a substrate layer on the back side and an adhesive layer on the surface side.

[0049] The lower limit of the average thickness of the reinforcing layer 2 (excluding the interior of the through hole 7) is preferably 1.0 mm, more preferably 1.5 mm. On the other hand, the upper limit of the average thickness of the reinforcing layer 2 is preferably 6.0 mm, more preferably 5.0 mm. When the average thickness of the reinforcing layer 2 is lower than the lower limit, the decorative component suffers from insufficient strength. Conversely, when the average thickness of the reinforcing layer 2 exceeds the upper limit, the distance between the single panel 1 and the shielding layer 4 increases, resulting in insufficient viewing angle and unclear text and images formed by the light emitting element 6.

[0050] <Coating>

[0051] The coating layer 3 is laminated on the surface of the single panel 1 and fills the interior (at least the inner part) of the through hole 7. In other words, when viewed from above, the coating layer 3 is continuously present inside the through hole 7. The portion of the coating layer 3, especially the portion laminated inside the through hole 7, diffuses the light from the light-emitting element 6, thereby increasing the viewing angle of the decorative component. To diffuse the light from the light-emitting element 6 and increase the viewing angle of the decorative component, the coating layer 3 preferably contains a light-diffusing agent.

[0052] The lower limit for the average thickness of the coating layer 3 on the surface of the single-layer board 1 (excluding the through-hole 7) is preferably 5 μm, more preferably 10 μm. On the other hand, the upper limit for the average thickness of the coating layer 3 on the surface of the single-layer board 1 is preferably 80 μm, more preferably 50 μm. When the average thickness of the coating layer 3 on the surface of the single-layer board 1 is lower than the lower limit, there is a problem that the surface of the single-layer board 1 is not adequately protected and the coating layer 3 cannot be fully filled into the interior of the through-hole 7. Conversely, when the average thickness of the coating layer 3 on the surface of the single-layer board 1 exceeds the upper limit, the viscosity of the coating needs to be increased, thereby causing the coating layer 3 to not be formed inside the through-hole 7.

[0053] Examples of materials that can be used as the main component of coating layer 3 include polyurethane, polyester fiber, and acrylic resin. Among these, polyurethane, which is easy to process and has excellent weather resistance, is particularly preferred.

[0054] As the light diffusing agent included in the coating layer 3, particles such as acrylic resin, styrene resin, silicon dioxide, polyoxysilane, calcium carbonate, and barium sulfate, or waxes such as solid paraffin wax, polyethylene wax, and polypropylene wax can be used.

[0055] The lower limit for the content of the light diffusing agent in the coating layer 3 is preferably 5% by mass, more preferably 8% by mass. On the other hand, the upper limit for the content of the light diffusing agent in the coating layer 3 is preferably 15% by mass, more preferably 12% by mass. When the content of the light diffusing agent in the coating layer 3 is lower than the lower limit, there is a problem that the viewing angle of the decorative part cannot be sufficiently improved. Conversely, when the content of the light diffusing agent in the coating layer 3 exceeds the upper limit, there is a problem that it is difficult to form a uniform coating layer 3.

[0056] The lower limit for the gloss of the coating layer 3 is preferably 1, and more preferably 3. On the other hand, the upper limit for the gloss of the coating layer 3 is preferably 30, and more preferably 10. When the gloss of the coating layer 3 is lower than the above-mentioned lower limit, there is a problem that the amount of light transmitted through the through hole 6 is reduced, resulting in insufficient visibility. Conversely, when the gloss of the coating layer 3 exceeds the above-mentioned upper limit, the light transmitted through the through hole 6 cannot be sufficiently diffused, resulting in insufficient viewing angle.

[0057] <Mask Layer>

[0058] The masking layer 4 is stacked on the back side of the reinforcing layer 2, and partially blocks the light emitted by the light source 6 emitting light from the opposite side, thereby defining the outline of the text or graphic and preventing the outline from becoming blurred. The masking layer 4 has multiple openings corresponding to each through hole 7 of the single panel 1, or forms one or more openings containing multiple through holes 7 for text or patterns.

[0059] As the masking layer 4, in addition to using layers with openings formed on, for example, black resin sheets, metal vapor-deposited resin films, metal foils, etc., light-shielding films, for example, formed by laminating patterns such as chromium on transparent substrates such as glass, can also be used.

[0060] <Touch Sensor>

[0061] Touch sensor 5 is a sensor capable of detecting human touch on the surface of the decorative component through the coating layer 3, the single board 1, the reinforcing layer 2, and the masking layer 4. The decorative component is configured to illuminate the light-emitting element 6 based on the action of the touch sensor 5.

[0062] Preferably, the touch sensor 5 is disposed on the back side of the single board 1 in the area where the through hole 7 is not formed.

[0063] The touch sensor 5 is preferably a capacitive touch sensor, which allows operation through the coating layer 3, the single board 1, the reinforcing layer 2, and the masking layer 4.

[0064] <Luminous Body>

[0065] As the light source 6, one or more LEDs, fluorescent lamps, etc., can be used. Furthermore, it is preferable that the light source is configured to make the amount of light emitted from the opening of the masking layer 4 approximately uniform when lit. Therefore, the light source 6 can be configured as shown in the figure to have multiple light sources arranged on the substrate.

[0066] Furthermore, the light-emitting element 6 can be configured to be partially lit and extinguished. In this way, by partially lighting and extinguishing the light-emitting element 6, text information can be displayed on the decorative component. As a specific example, a matrix panel with LEDs arranged in a horizontal and vertical arrangement, or a light-emitting display device with 7 or 14 rod-shaped light-emitting parts in a known 7-segment or 14-segment display mode can be used as the light-emitting element 6.

[0067] [Manufacturing Method]

[0068] The decorative component itself can be manufactured by a method for manufacturing a decorative component according to another embodiment of the present invention.

[0069] like Figure 2 As shown, the manufacturing method of the decorative component includes: <Step S1: Laser irradiation process>, which is a process of irradiating a laser to form a plurality of through holes 7 on the single panel 1; <Step S2: Reinforcing layer lamination process>, which is a process of laminating a transparent reinforcing layer 2 on the back side of the single panel 1 on which the through holes 7 are formed; <Step S3: Coating process>, which is a process of coating a paint on the surface of the single panel 1 on which the reinforcing layer 2 is laminated.

[0070] <Laser Irradiation Process>

[0071] In the laser irradiation process of step S1, a through hole 7 is formed on the single board 1 by laser irradiation. In this way, by using a laser to form the through hole 7, a fine through hole 7 can be formed quickly and accurately.

[0072] Specifically, the wavelength of the laser irradiating the single board 1 is preferably 10 nm or more and 10600 nm or less, for example, a CO2 laser can be used. Furthermore, the output power of the laser irradiating the single board 1 should be appropriately adjusted according to the processing conditions, but is preferably 1 W or more and 200 W or less.

[0073] <Reinforcement Layer Lamination Process>

[0074] In the reinforcing layer lamination process of step S2, the reinforcing layer 2 is laminated onto the back side of the single panel 1, for example, by insert molding or hot stamping. At this time, the molten reinforcing layer 2 forming material flows into the through hole 7, so that in the subsequent coating process, a coating layer 3 can be formed near the surface opening inside the through hole 7, making it easier for scattered light to escape from the through hole 7, thereby efficiently increasing the viewing angle.

[0075] <Coating Process>

[0076] In the coating process of step S3, a coating is applied to the surface of the single board 1 on the back side where the reinforcing layer 2 is stacked and the through hole 7 is blocked, thereby forming a continuous coating layer 3 on the surface of the reinforcing layer exposed inside the through hole 7.

[0077] As the coating material, a matte coating containing a light-diffusing agent is preferred. The coating can be an oil-based coating or a water-based coating.

[0078] <Advantages>

[0079] The decorative component allows light from the light-emitting element 6 disposed on the back side to pass through by forming multiple through holes 7 in the single panel 1. Furthermore, the decorative component has a coating layer 3 laminated on the surface of the single panel 1, which fills the interior of the through holes 7, thereby diffusing the light emitted from the light-emitting element 6 through the through holes 7 and thus increasing the viewing angle of the light emitting element 6.

[0080] [Second Implementation]

[0081] exist Figure 3 The image shows a decorative component according to another embodiment of the present invention. This decorative component can be combined with... Figure 1 Decorative components are similarly used as interior panels in motor vehicles, for example.

[0082] The decorative component comprises: a wooden veneer 11; a transparent reinforcing layer 12, which is laminated on the back side of the veneer; a coating layer 13, which is laminated on the surface of the veneer 11; a masking layer 14, which is laminated on the back side of the reinforcing layer 12; and a light-emitting element 15, which is disposed on the back side of the masking layer 14.

[0083] <Singleboard>

[0084] The single panel 11 has a plurality of through holes 16 that allow light from the light source 15 to be transmitted toward the surface side. The inside of the through holes 16 is filled with a coating layer 13 that covers the surface of the reinforcing layer 12.

[0085] As Figure 3 The material and average thickness of the veneer 11 in the decorative components are compatible with... Figure 1 The material and average thickness of the single panel 1 in the decorative component are the same.

[0086] (Through hole)

[0087] The central axis of each through hole 16 of the single plate 11 extends along the thickness direction of the single plate 11 and is regularly formed over a large area at a constant spacing.

[0088] Furthermore, in the decorative component of this embodiment, the through hole 16 is formed as a cone shape with an expanded diameter toward the surface side. In this way, by making the through hole 16 a cone shape with an expanded diameter toward the surface side, the opening of the through hole 16 on the surface of the single panel 11 becomes larger, thereby increasing the viewing angle and making it easier to continuously form the coating layer 13.

[0089] Figure 3The average diameter, average center spacing, and taper of the through holes 16 in the decorative components can be compared with... Figure 1 The through holes 7 in the decorative components have the same average diameter, average center spacing, and taper. That is, the aforementioned average diameter and average center spacing serve as the reference for the opening of the through holes 16 on the surface side of the single panel 11. The taper is the angle of inclination relative to the central axis of the through hole 16. Figure 1 The through hole 7 in the decorative component is represented by a positive value that is in the opposite direction of the tilt relative to the aforementioned central axis but has the same numerical value.

[0090] <Reinforcement Layer>

[0091] The reinforcing layer 12 is mainly composed of resin and is formed from a transparent resin composition. Figure 3 The material and average thickness of the reinforcing layer 12 in the decorative component are compatible with... Figure 1 The reinforcing layer 2 in the decorative components has the same material and average thickness.

[0092] <Coating>

[0093] The coating layer 13 is laminated on the surface of the veneer 11 and fills the interior of the through-hole 16. The portion of the coating layer 13, especially the portion laminated inside the through-hole 16, diffuses the light from the light-emitting element 15, thereby increasing the viewing angle of the decorative component. To increase the viewing angle of the decorative component by diffusing the light from the light-emitting element 15, the coating layer 13 preferably contains a light-diffusing agent.

[0094] Figure 3 The coating layer 13 in the decorative component, besides matching the shape of the through hole 16 in the veneer 11, can be combined with... Figure 1 The coating layer 3 is the same as that in the decorative parts.

[0095] <Mask Layer>

[0096] In this embodiment, the masking layer 14 is formed from a liquid crystal panel, and the area through which light from the light-emitting element 15 passes can be arbitrarily changed. Thus, the masking layer 14 is an active photomask, enabling the display of more information using this decorative component.

[0097] The masking layer 14 formed by the liquid crystal panel can have a touch sensor on its surface.

[0098] <Luminous Body>

[0099] The light emitter 15 can be used, for example, in a backlight module for a liquid crystal display panel. The light emitter 15 and the masking layer 14 can be integrated into a liquid crystal display panel unit.

[0100] <Advantages>

[0101] The decorative component allows light from the light-emitting element 15 disposed on the back side to pass through by forming multiple through holes 16 in the single panel 11. Furthermore, the decorative component has a coating layer 13 laminated on the surface of the single panel 11, which is filled into the interior of the through holes 16, thereby diffusing the light emitted from the light-emitting element 15 through the through holes 16, thus allowing a large viewing angle for the light emitted from the light-emitting element 15.

[0102] [Other Implementation Methods]

[0103] The above embodiments are not intended to limit the constituent elements of the present invention. Therefore, for the above embodiments, the constituent elements of each part of the embodiments can be omitted, substituted, or added based on the description in this specification and common technical knowledge, and such omissions, substitutions, or additions should all be interpreted as being included within the scope of the present invention.

[0104] This decorative component may not have a touch sensor; instead, it can illuminate or extinguish the light source based on external input signals. Furthermore, the touch sensor for this decorative component can be positioned between the masking layer and the reinforcing layer.

[0105] The decorative component may not include a masking layer or a light-emitting element. In this case, for example, a smartphone can be positioned on the back side, allowing the image of the smartphone to be seen through the decorative component. Furthermore, the masking layer can be omitted as long as the light-emitting area can be sufficiently limited.

[0106] The decorative component may have a transparent resin layer on the outermost side of the coating to protect the veneer and impart a glossy finish.

[0107] The decorative component can have a substrate material such as woven fabric or non-woven fabric on the back of the single panel. In this case, the substrate material is bonded to the single panel before forming the through holes by laser processing, and the through holes are also formed on the substrate material.

[0108] The decorative component of this invention can be used as an exterior material for game consoles, audio equipment, musical instruments, smartphones, etc., and is especially suitable for interior panels of motor vehicles.

[0109] Explanation of reference numerals in the attached figures

[0110] 1,11 single boards;

[0111] 2, 12 reinforcement layers;

[0112] 3,13 coating layer;

[0113] 4,14 masking layers;

[0114] 5 touch sensors;

[0115] 6,15 luminescent bodies;

[0116] 7, 16 through holes.

Claims

1. A decorative component, comprising: A wooden veneer having multiple through holes that allow light from a light-emitting element disposed on the back side to pass through to the surface side; A transparent reinforcing layer is laminated on the back side of the veneer; A coating layer is laminated on the surface of the veneer and fills the interior of the through-holes. The reinforcing layer extends into the through hole.

2. The decorative component according to claim 1, By inserting the reinforcing layer into the through hole, a coated surface is formed inside the through hole for the coating layer to be stacked.

3. The decorative component according to claim 1 or 2, The through hole becomes a cone shape with an increased diameter toward the back side.

4. The decorative component according to claim 3, The average diameter of the through holes on the surface of the wood veneer is greater than 0.10 mm and less than 0.40 mm.

5. The decorative component according to claim 1 or 2, The average thickness of the coating layer on the surface of the wood veneer is more than 5 μm and less than 80 μm.

6. The decorative component according to claim 1 or 2, The coating contains a light-diffusing agent.

7. The decorative component according to claim 6, The light-diffusing agent content of the coating layer is more than 5% by mass and less than 15% by mass.

8. The decorative component according to claim 1 or 2, The gloss level of the coating layer is above 1 and below 30.

9. The decorative component according to claim 1 or 2, It further includes a masking layer that is stacked on the back side of the reinforcing layer and partially blocks light from the back side to the surface side.

10. A method for manufacturing a decorative component, comprising: The process of creating multiple through holes by irradiating a wooden veneer with a laser; The process of laminating a transparent reinforcing layer on the back side of the single plate where the through hole is formed; The process of applying a coating to the surface of a veneer to which the reinforcing layer is stacked; The reinforcing layer extends into the through hole.

Images