JP2014035450A - Light ornament device and decorative panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the designability of a light ornament device and a decorative panel by guiding illumination light illuminating the decorative panel from its back in a surface direction in the decorative panel and illuminating an area except an area where a light shielding layer is formed, when the decorative panel is illuminated from its back.SOLUTION: A light ornament device 1 includes a translucent base material 21 having a front side surface 21b, a back side surface 21a, and a recess 21d recessed in the back side surface 21a, a first light shielding layer 22 formed in a part of the front side surface 21b of the base material 21 and hiding the recess 21d on the back side of the first light shielding layer 22, a second light shielding layer 23 formed at least in the area not hidden by the first light shielding layer 22 of the back side surface 21a of the base material 21, and a backlight 10 provided on the back side of the base material 21 and illuminating the recess 21d.

Description

  The present invention relates to a light decorative device and a decorative panel.

Patent Document 1 discloses an illumination panel in which a heat insulating resin layer (12), a thin film metal layer (11), a surface resin layer (13), and a surface printed layer (14) are laminated from the bottom in this order. (See FIG. 1). The heat insulating resin layer (12) can transmit light, the thin film metal layer (11) has metallic luster and translucency, the surface resin layer (13) is transparent, and the surface printed layer (14) is large. A part is opaque and a part (illumination part 5) of the surface printing layer (14) has translucency. The surface printed layer (14) is formed on a part of the surface of the surface resin layer (13), and the other part of the surface printed layer (13) is not covered with the surface printed layer (14).
When this illuminated panel is viewed from the front side, the thin film metal layer (11) can be seen on the back side of the surface resin layer (13) in the region where the surface print layer (14) is not formed (the metallic decoration part 6), and the surface print In the region where the layer (14) is formed, the surface printed layer (14) can be seen on the front side of the surface resin layer (13). Therefore, when the illuminated panel is viewed from the front side, the illuminated panel appears to be thick, and the stereoscopic effect of the illuminated panel can be obtained.
When this illuminating panel is illuminated from the back side of this illuminating panel, light passes through the heat insulating resin layer (12), the thin film metal layer (11) and the surface resin layer (13), and a part of the surface printing layer (14). (Illumination unit 5) appears to shine. Further, by shielding light from the back side of the region where the surface print layer (14) is not formed (the metallic decoration portion 6), the metallic luster of the thin film metal layer (11) is prevented from being damaged by illumination (paragraph 0025). reference).

JP 2010-20047 A

  By the way, in this technical field, a unique design is required. Therefore, the problem to be solved by the present invention is to provide a light decorative device and a decorative panel having a unique design. Specifically, when a decorative panel such as an illumination panel is illuminated from the back, the illumination light can be guided in the surface direction through the interior of the decorative panel, and the area other than the area where the light-shielding layer such as the surface printed layer is formed The design of the light decoration device and the decorative panel is improved.

  In order to solve the above-described problems, a light decoration device according to the present invention includes a translucent substrate having a front surface and a back surface, and having a concave portion provided in the back surface, and the base. A first light-shielding layer that is formed on a part of the surface on the front side of the material and hides the concave portion on the back side, and a second light-shielding formed in an area that is not hidden by at least the first light-shielding layer on the surface on the back side of the base material It is provided with the layer and the backlight which is provided in the back side of the said base material and illuminates the said recessed part.

  Preferably, the first light shielding layer has an edge that divides a surface on the front side of the base material into a region where the first light shielding layer is formed and a region where the first light shielding layer is not formed. When the material is viewed from the front side or the back side, the concave portion is formed on the region side where the first light shielding layer is formed rather than the edge.

  Preferably, the first light-shielding layer partially overlaps the second light-shielding layer in the region where the first light-shielding layer is not formed with respect to the recess when the base is viewed from the front side or the back side.

  The decorative panel according to the present invention has a front side surface and a back side surface, and a translucent base material having a concave portion provided in the back side surface, and a part of the front side surface of the base material. A first light-shielding layer that is formed and hides the concave portion on the back side, and a second light-shielding layer that is formed in a region on the back side of the substrate that is not hidden by at least the first light-shielding layer.

  According to the present invention, since the concave portion is provided on the back surface of the base material, the light emitted from the backlight is incident on the inner wall surface of the concave portion at an angle close to the surface direction orthogonal to the thickness of the base material. Therefore, the light incident on the inner wall surface of the concave portion easily guides the inside of the base material in the surface direction, and the light goes around the edge of the first light shielding portion and is emitted to the outside from the front surface of the base material. Therefore, when viewed from the front side of the base material, the tip of the edge of the first light shielding portion appears to be illuminated. Thereby, the design property of a light decoration apparatus and a decoration panel improves.

It is a front view of the light decoration apparatus concerning the embodiment of the present invention. It is II-II sectional drawing. FIG. 3 is an enlarged view of a part of FIG. 2.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated using drawing. However, the embodiments described below are given various technically preferable limitations for carrying out the present invention, but the scope of the present invention is not limited to the following embodiments and illustrated examples.

  FIG. 1 is a front view of the light decoration device 1. FIG. 2 is a cross-sectional view showing the surface along II-II shown in FIG. 1 as viewed in the direction of the arrow.

  The light decoration device 1 includes a backlight (back illuminator) 10 and a decoration panel 20.

  The backlight 10 is disposed on the back side of the decorative panel 20. The backlight 10 illuminates the decorative panel 20 from behind the decorative panel 20.

  The backlight 10 is a rod-shaped (linear) light source. Specifically, the backlight 10 includes a rod-shaped light guide 11 and a light source (for example, a light emitting diode) 12, the rod-shaped light guide 11 is formed in a column shape (for example, a columnar shape, a prismatic shape), and the light source 12 is It faces the end face of the rod-shaped light guide 11. The light source 12 emits light toward the end surface of the rod-shaped light guide 11, the rod-shaped light guide 11 takes in light at the end surface, and guides the light toward the opposite end surface. Emits light. The backlight 10 may be a discharge tube (for example, a cold cathode discharge tube or a fluorescent tube). Further, the backlight 10 may be a linear array of incandescent lamps or light emitting diodes, or may be an organic EL element formed in a strip shape.

  The decorative panel 20 is a laminate of a plurality of layers. The decorative panel 20 includes a base material 21, a first light shielding layer 22, a second light shielding layer 23, a first light transmissive layer 24, a second light transmissive layer 25, and the like.

  The base material 21 is formed in a plate shape. The base material 21 has translucency, and more specifically is a colored transparent or colorless transparent plate. For example, the base material 21 is a glass substrate, a resin substrate, a touch panel, or other transparent plate. If the substrate 21 is a touch panel, the light decoration device 1 is an input device. The base material 21 may be a part of a device casing or an automobile interior panel (for example, a console panel or a liner).

  A recess 21 d is formed in the back surface 21 a of the base material 21. The concave portion 21d is a groove having a rectangular cross section extending along the longitudinal direction of the backlight 10, and the inner wall surface of the concave portion 21d includes a back surface 21e, a side wall surface (standing wall surface) 21f, and a side wall surface (standing wall surface) 21g. . The back surface 21e of the recess 21d is a surface extending in a strip shape along the longitudinal direction of the backlight 10 (direction perpendicular to the paper surface of FIG. 2), and the back surface 21e is a light emitting surface of the backlight 10 (particularly, It faces the peripheral surface of the rod-shaped light guide 11. The side wall surface 21f of the recess 21d is provided so as to stand on the back surface 21e at one edge (lower edge) of the back surface 21e, and the side wall surface 21f extends in a strip shape along the longitudinal direction of the backlight 10. Surface. Further, the other side edge (upper edge) of the back surface 21e is also provided with the side wall surface 21g of the recess 21d standing on the back surface 21e, and the side wall surface 21g is also strip-shaped along the longitudinal direction of the backlight 10 It is a surface that extends. The recess 21d may be a groove having a semicircular cross section, a semi-elliptical cross section, or a triangular cross section, instead of a groove having a rectangular cross section. Further, the back surface 21e, the side wall surface 21f, and the side wall surface 21g are not flat, and one or more of these are curved surfaces (for example, a cylindrical surface around an axis along a direction perpendicular to the paper surface of FIG. 2). There may be.

  The backlight 10 (particularly, the rod-shaped light guide 11) is disposed so as to be close to the surface 21a on the back side of the substrate 21, and is particularly disposed so as to be close to the recess 21d. Note that the backlight 10 (particularly, the rod-shaped light guide 11) may be entirely or partially housed in the recess 21d, or may protrude from the recess 21d to the back side as shown in FIG.

  A first light shielding layer 22 is formed on the front surface 21 b of the substrate 21. The first light shielding layer 22 does not cover the entire front surface 21 b of the base material 21, and a region 21 c that is not covered by the first light shielding layer 22 is on the front surface 21 b of the base material 21. The first light shielding layer 22 is formed on the opposite side of the recess 21 d, and the recess 21 d is hidden behind the first light shielding layer 22.

  As shown in FIG. 1, when viewed from the front, the lower edge 22 a of the first light shielding layer includes a surface 21 b on the front side of the base material 21 on the region where the first light shielding layer 22 is formed (upper region) and the first light shielding layer. This is an edge that divides the region 22 into a region (lower region) 22c where 22 is not formed. The recess 21 d is formed on the region side (upper side) where the first light shielding layer 22 is formed with respect to the lower edge 22 a of the first light shielding layer 22. As shown in FIG. 1, when viewed from the front, the lower edge 22a of the first light shielding layer 22 is located below the lower edge (side wall surface 21f) of the recess 21d, or the lower edge 22a is at the lower edge of the recess 21d. It's all there.

  In FIG. 1, a region 21 c that is not covered with the first light shielding layer 22 is located below the first light shielding layer 22. On the other hand, the first light shielding layer 22 is formed in a strip shape along the longitudinal direction of the recess 21d, and the regions 21c not covered by the first light shielding layer 22 are present on both the lower side and the upper side of the first light shielding layer 22. May be.

  As shown in FIGS. 1 and 2, the first light-shielding layer 22 is a film (for example, a film laminated on a part of the surface 21 b on the front side of the substrate 21 by a film insert molding method, a film-in-mold molding method, or other molding methods). , A printed film), or a layer deposited on a part of the surface 21b on the front side of the substrate 21 by a vapor deposition method (for example, vapor deposition method) or a plating method. Moreover, when the base material 21 consists of resin, the 1st light shielding layer 22 may be laminated on the surface 21b of the front side of the base material 21 simultaneously with shaping | molding of the base material 21, or after shaping | molding of the base material 21, a 1st light shielding layer 22 may be laminated.

  The first light shielding layer 22 has a light shielding property. Further, the first light shielding layer 22 is partially translucent, and a plurality of light transmissive portions 22b are formed in a part of the first light shielding layer 22, and these light transmissive portions 22b are formed in the first light shielding layer. The light shielding properties are lower than those of the other 22 parts. The translucent part 22b is a character, a symbol, a figure, a color or a pattern, or a combination thereof. When the first light-shielding layer 22 is provided with light-shielding properties by printing on a transparent film, the light-transmitting portion 22b is lighter or less printed than other parts of the first light-shielding layer 22. There is nothing.

  These translucent portions 22b are formed on the opposite side of the concave portions 21d, and there are concave portions 21d on the back side of these translucent portions 22b. In addition, the number of the backlights 10 may be plural, and one backlight 10 may be opposed to one light transmitting portion 22b.

  The first light shielding layer 22 is covered with a first light transmissive layer 24. The first light transmissive layer 24 also covers a region 21 c that is not covered by the first light shielding layer 22 on the front surface 21 b of the substrate 21. The first translucent layer 24 has translucency, and more specifically, is a colored transparent or colorless transparent layer. The first light transmissive layer 24 may be omitted.

  A second light shielding layer 23 is formed on the back surface 21 a of the substrate 21, and a second light transmissive layer 25 is formed on the second light shielding layer 23. An opening 26 is formed in a region of the second light shielding layer 23 and the second light transmitting layer 25 that overlaps the recess 21 d, and the recess 21 d is exposed through the opening 26. The second light shielding layer 23 may be formed on the entire back surface 21a (excluding the recess 21d) of the base material 21, or may be formed on a part of the back surface 21a. That is, the second light shielding layer 23 covers at least a region (a region facing the region 21 c) that is not hidden by the first light shielding layer 22 on the back surface 21 a of the base material 21.

  The first light-shielding layer 22 partially overlaps the second light-shielding layer 23 below the recess 21d when viewed from the front or back surface of the substrate 21, and the lower edge 22a of the first light-shielding layer 22 is the second light-shielding layer 23. Among them, it is located below the upper edge of the region 23a below the recess 21d. Alternatively, the lower edge 22a of the first light-shielding layer 22 is aligned with the upper edge of the region 23a below the recess 21d in the second light-shielding layer 23 when viewed from the front or back surface of the substrate 21.

  The second light shielding layer 23 may be a film laminated on the back surface 21a of the base material 21 by a film insert molding method, a film in-mold molding method, or other molding methods, or by a vapor phase growth method or a plating method. It may be a layer deposited on the back surface 21 a of the base material 21. When the second light-shielding layer 23 is a laminated film, the second light-shielding layer 23 may be laminated simultaneously with the molding of the base material 21, or the second light-shielding layer 23 is laminated after the base material 21 is molded. May be.

  The second light shielding layer 23 has a light shielding property. The second translucent layer 25 has translucency, and more specifically is a colored transparent or colorless transparent layer. The second light transmissive layer 25 may be omitted.

  When the decorative panel 20 is viewed from the front, the first light shielding layer 22 can be visually recognized, and the second light shielding layer 23 (mainly the lower region 23a) is visually recognized in the region 21c where the first light shielding layer 22 is not covered. be able to. Since the first light shielding layer 22 is formed on the front surface 21b of the base material 21 and the second light shielding layer 23 is formed on the back surface 21a of the base material 21, the decorative panel 20 is viewed from the front. Seems three-dimensional (thickness).

  When the backlight 10 is turned on, the back side of the substrate 21 and the recess 21d are illuminated by the backlight 10. A part of the light emitted from the backlight 10 is shielded by the second light shielding layer 23, and the other part of the light emitted from the backlight 10 proceeds to the recess 21d. Then, the light passes through the concave portion 21d and enters the base material 21, and a part of the incident light is shielded by the first light shielding layer 22 (see the light rays A and B shown in FIG. 3). A part of the light passes through the base material 21, the light transmitting portion 22b, and the first light transmitting layer 24 (see the light beam C shown in FIG. 3). Therefore, when the decorative panel 20 is viewed from the front, the translucent part 22b appears to shine.

  A part of the light emitted from the backlight 10 is incident on the side wall surface 21f of the recess 21d at an angle close to the surface direction (direction orthogonal to the thickness of the base material 21). Therefore, the light incident on the side wall surface 21f guides the inside of the base material 21 downward. In particular, the light incident on the side wall surface 21f is refracted by the side wall surface 21f, and the traveling direction of the light is further downward (see the light ray D shown in FIG. 3). The light beam D shown in FIG. 3 passes through the substrate 21 and the first light transmissive layer 24. Therefore, when the decorative panel 20 is viewed from the front, it appears to irradiate and illuminate the lower part 22 a of the first light shielding layer 22. In particular, since the light is refracted downward by the side wall surface 21f, the light flux / light quantity of the light that wraps under the lower edge 22a of the first light shielding layer 22 increases, so that the lower part of the lower edge 22a of the first light shielding layer 22 is more lower. Brightly illuminated and illuminated.

  Further, when the light beam D shown in FIG. 3 leaks or diffuses, the front side of the second light shielding layer 23 is illuminated. Therefore, the color, pattern, and the like of the second light shielding layer 23 can be visually recognized when the decorative panel 20 is viewed from the front. This is effective in the dark.

  Since the concave portion 21d is located above the lower edge 22a of the first light shielding layer 22, most of the light incident on the back surface 21e of the concave portion 21d is shielded by the first light shielding layer 22 (except for the light transmitting portion 22b). Is done. Therefore, light close to the vertical direction of the surface 21 b on the front side of the base material 21 does not pass through the base material 21. Therefore, the light that irradiates and illuminates the lower side of the lower edge 22a of the first light shielding layer 22 is relatively emphasized.

  Below the recess 21d, the first light shielding layer 22 overlaps the second light shielding layer 23, or the lower edge 22a of the first light shielding layer 22 is on the upper edge of the region 23a below the second light shielding layer 23. It's all there. Therefore, light close to the vertical direction of the surface 21 b on the front side of the base material 21 does not pass through the base material 21. Therefore, the light that irradiates and illuminates the lower side of the lower edge 22a of the first light shielding layer 22 is relatively emphasized.

  Embodiments to which the present invention is applicable are not limited to the above-described embodiments, and can be appropriately changed without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 Light decoration apparatus 10 Backlight 20 Decoration panel 21 Base material 21a Surface on the back side of base material 21b Surface on the front side of base material 21d Recessed part 21c Area | region where the 1st light shielding layer is not formed 22 1st light shielding layer 22a 1st light shielding layer Bottom edge (edge)
23 Second light shielding layer

Claims (5)

A translucent base material having a front side surface and a back side surface, and having a recess recessed in the back side surface;
A first light-shielding layer formed on a part of the front surface of the base material and concealing the concave portion on the back side;
A second light-shielding layer formed in a region that is not hidden by at least the first light-shielding layer of the back side surface of the substrate;
Provided on the back side of the substrate, and a backlight for illuminating the recess,
A light decoration device characterized by that. The first light shielding layer has an edge that divides the surface on the front side of the substrate into a region where the first light shielding layer is formed and a region where the first light shielding layer is not formed,
Seeing the base material from the front side or the back side, the recess is formed on the region side where the first light shielding layer is formed rather than the edge.
The light decoration device according to claim 1. The first light-shielding layer partially overlaps the second light-shielding layer on the side of the region where the first light-shielding layer is not formed with respect to the concave portion when viewed from the front side or the back side.
The light decoration device according to claim 2. The first light-shielding layer has a translucent part formed on the opposite side of the concave portion of the surface of the base material,
The light-shielding property of the light-transmitting portion is lower than the light-shielding property of a portion other than the light-transmitting portion of the first light-shielding layer,
The light decoration device according to any one of claims 1 to 3. A translucent base material having a front side surface and a back side surface, and having a recess recessed in the back side surface;
A first light-shielding layer formed on a part of the front surface of the base material and concealing the concave portion on the back side;
A second light-shielding layer formed in a region that is not hidden by at least the first light-shielding layer of the back side surface of the base material,
A decorative panel characterized by that.

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