JP4559189B2 - Lighting device for control panel unit of vehicle equipment - Google Patents

Description

  The present invention relates to a lighting device for a control panel unit that constitutes a surface of a control device for vehicle equipment, and more particularly to a structure of a lighting device that emits light on a predetermined portion of a design panel arranged in front of the control panel unit.

  In a vehicle interior of an automobile or the like, a control panel unit that constitutes a surface of a control device of an equipment device such as an air conditioner or a car navigation is often arranged in a center cluster or the like. Usually, an air conditioner switch device and a car navigation display device are attached to such a control panel unit.

  A point light source such as a light emitting diode is arranged on the back side of the control panel unit (the back side as viewed from the passenger compartment) as a means for illuminating the characters and figures written on the knob of the switch device of the control panel unit. Conventionally, a structure has been known in which light from this light source is guided to the back of the switch knob using a transparent solid body (hereinafter referred to as a light guide), and the switch knob is illuminated from the back to emit characters and figures. ing.

  On the other hand, as a new lighting effect in the passenger compartment, there is a demand to illuminate and emit a translucent design panel that surrounds the display device of the control panel unit and constitutes the front surface thereof.

  However, it is extremely difficult to arrange a light source side by side on the back side of the design panel and to illuminate the design panel in a planar shape due to restrictions on the design structure of each component attached to the control panel unit.

  In addition, when the illumination structure for the switch knob described above is applied to the planar illumination of the design panel as it is, it is a structure that guides the light of the point light source with the light guide, so that the planar illumination portion of the design panel, There has been a problem that uneven brightness (abrupt change in brightness) occurs.

  Therefore, the present invention provides a control panel unit that illuminates a design panel and emits light by reducing luminance unevenness even when there is a design limitation of using a light source as in the conventional example, and an illumination device thereof. With the goal.

  In order to achieve the above object, a lighting device according to the present invention is a lighting device that emits light on a predetermined portion of a panel assembly that constitutes a surface of a control device for vehicle equipment, and the panel assembly includes a cluster panel, a cluster panel, A design panel arranged to cover a part of the front of the panel, the design panel has an illumination area along the edge adjacent to the edge, and the cluster panel is opposed to the illumination area of the design panel. And an opening adjacent to the reflecting surface. A light source disposed on the back side of the cluster panel; a light guide that guides light from the light source to the opening of the cluster panel; and an optical path between the opening of the cluster panel and the light guide. A light distribution plate colored with shading so as to smooth the luminance distribution in the direction along the edge of the design panel of the light reaching the design panel, and among the light transmitted through the light distribution plate, The light reaching the reflecting surface is reflected toward the design panel here, and illuminates the illumination area of the design panel from the back together with the light reaching the design panel directly from the light distribution plate.

  Another lighting device according to the present invention is a lighting device that emits light to a predetermined portion of a panel assembly that constitutes a surface of a control device of a vehicle equipment device. The panel assembly includes a cluster panel and a front surface of the cluster panel. The design panel has an illumination area along the edge adjacent to the edge, and the cluster panel is formed to face the illumination area of the design panel. A reflecting surface and an opening adjacent to the reflecting surface. Furthermore, a light source disposed on the back side of the cluster panel, a light guide that guides light from the light source to the opening of the cluster panel, and an optical path between the opening of the cluster panel and the light guide to diffuse light And a light distribution plate on which irregularities to be formed are formed.

  Here, in the illumination device, it is preferable that the light distribution plate covers the opening of the cluster panel.

  In addition, a control panel unit according to another aspect of the present invention is a control panel unit that constitutes a surface of a control device for a vehicle-equipped device and emits light at a predetermined portion. The control panel unit includes a cluster panel and a cluster panel. A design panel arranged to cover a part of the front of the design panel, the design panel has an illumination area along the edge adjacent to the edge, and the cluster panel is opposed to the illumination area of the design panel It has a formed reflecting surface and an opening adjacent to the reflecting surface. A light source disposed on the back side of the cluster panel; a light guide that guides light from the light source to the opening of the cluster panel; and an optical path between the opening of the cluster panel and the light guide. A light distribution plate colored with light and shade so as to smooth the luminance distribution in the direction along the edge of the design panel of light reaching the design panel, and reflecting the light transmitted through the light distribution plate The light reaching the surface is reflected toward the design panel here, and the reflected light and the light reaching the design panel directly from the light distribution plate illuminate the illumination area of the design panel from the back side and emit light.

  Another control panel unit according to the present invention is a control panel unit that constitutes a surface of a control device of a vehicle equipment device, and a predetermined portion emits light. The control panel unit includes a cluster panel and a front surface of the cluster panel. The design panel has an illumination area along the edge adjacent to the edge, and the cluster panel is formed to face the illumination area of the design panel. A reflecting surface and an opening adjacent to the reflecting surface. Furthermore, a light source disposed on the back side of the cluster panel, a light guide that guides light from the light source to the opening of the cluster panel, and an optical path between the opening of the cluster panel and the light guide to diffuse light And a light distribution plate on which irregularities to be formed are formed.

  Here, in the control panel unit, the light distribution plate preferably covers the opening of the cluster panel.

  With the above configuration, the control panel unit and the lighting device thereof can emit light at a predetermined portion of the design panel while reducing unevenness in luminance.

  Preferred embodiments of the present invention will be described below with reference to the drawings.

  First, the configuration of the control panel unit 1 of the present embodiment will be described. FIG. 1 is a front view of a control panel unit of the present embodiment, and FIG. 2 is an exploded perspective view. FIG. 3 shows a cross-sectional view taken along line AA of FIG. A control panel unit 1 shown in FIG. 1 is a component that constitutes a surface of a control device of a vehicle equipment device, and the control panel unit 1 of this embodiment is a vehicle compartment side of a center cluster of an automobile (indicated by an arrow C in FIG. This is a component that constitutes the surface in the direction shown. On the back side of the control panel unit 1 (in the direction indicated by the arrow B in FIG. 2), a display device 3 (indicated by a two-dot chain line in FIG. 3) and a switch device 5 for an air conditioner (in FIG. 3). The placement location is indicated by a one-dot chain line). As shown in FIG. 2, the control panel unit 1 is roughly composed of a panel assembly 10 and a lighting device 50 that illuminates a predetermined portion of the panel assembly 10.

  As shown in FIG. 2, the panel assembly 10 includes a cluster panel 20 and a design panel 40 that is disposed so as to cover the center of the front surface of the cluster panel 20. In the cluster panel 20 and the design panel 40, rectangular openings having substantially the same shape are formed at positions corresponding to the image display portions of the display device 3, respectively. The cluster panel 20 is provided with a display opening 22, and the design panel 40 is provided with a display opening 42. The cluster panel 20 is molded with a design panel receiving portion 30 in which a recess is formed so as to surround the display opening 22. The panel assembly 10 is formed by attaching the design panel 40 to the receiving portion 30 so that the positions of the display opening 22 and the display opening 42 coincide with each other. Thereby, the image display site | part of the display apparatus 3 can be directly visually recognized from the compartment side (direction shown by the arrow C in FIG. 2).

  The design panel 40 is a panel that can transmit light and has a smooth surface. The design panel 40 is adjacent to the edges 47 and 48 of the design panel on both the left and right sides of the display opening 42 (in the direction indicated by the arrow Y in FIG. 2), and the illumination areas 43 and 44 (see FIG. 2 design panel 40 has a region indicated by diagonal lines). When the design panel 40 is attached to the cluster panel 20 as described above, the illumination areas 43 and 44 face the edges 33 and 34 of the design panel receiving part 30 of the cluster panel described later. The design panel 40 of the present embodiment may be a transparent panel or a translucent panel as long as light can be transmitted.

  As shown in FIG. 2, the cluster panel 20 is provided with a switch opening 24, a reflecting surface 26, and an illumination opening 28 in addition to the display opening 22 described above.

  The switch openings 24 are arranged at three locations on both the left and right sides (the direction indicated by the arrow Y in FIG. 2) with the design panel receiving portion 30 interposed therebetween. The switch opening 24 is formed in accordance with the square shape of the switch knob of the air conditioner provided on the back side of the cluster panel 20 (the direction indicated by the arrow B in FIG. 2). The switch knob 6 is mounted on the cluster panel 20 so as to pass through the switch opening 24, and enables the air conditioner to be operated.

  The reflecting surface 26 is provided at a position facing the illumination areas 43 and 44 of the design panel 40, that is, at the left and right edges 33 and 34 of the display opening 22 of the design panel receiving part 30. The reflective surface 26 is indicated by hatching on the cluster panel 20 of FIG. The reflection surface 26 is a rectangular surface provided on the surface of the cluster panel 20 and is painted in a silver tone so as to reflect light. The length of the reflecting surface 26 in the vertical direction (the direction indicated by the arrow Z in FIG. 2) is substantially the same as the display opening 22. As shown in FIG. 3, the reflecting surface 26 is formed so as to be gently curved toward the back side (the direction indicated by the arrow B in FIG. 2) toward the outside (the side having the switch opening 24). The reflecting surface 26 is connected to the illumination opening 28.

  The illumination opening 28 is formed adjacent to an end of the reflection surface 26 on the outer side (the side having the switch opening 24). As shown in FIG. 3, the illumination opening 28 opens toward the reflecting surface 26 and the back surface 46 of the design panel 40. The illumination opening 28 is a rectangular opening, and the length in the vertical direction (the direction indicated by the arrow Z in FIG. 2) is substantially the same as the length in the vertical direction of the reflecting surface 26. The length of the illumination opening 28 in the lateral direction is about two plate thicknesses of the cluster panel 20 as shown in the sectional view of FIG.

  Although the configuration of the panel assembly 10 has been described above, the panel assembly 10 is formed by attaching the design panel 40 to the receiving portion 30 of the cluster panel 20, and the reflection surface 26 and the illumination opening 28 of the cluster panel 20 are It will be covered by the illumination areas 43 and 44 of the design panel 40.

  In the cluster panel of the present embodiment, the reflective surface and the illumination opening are provided on both the left and right sides of the display opening, but the present invention is not limited to this. For example, a reflective surface and an illumination opening may be provided on both upper and lower sides of the cluster panel, or a reflective surface and an illumination opening may be provided on either the left or right side.

  As shown in FIG. 2, the lighting device 50 is disposed on the back side of the cluster panel 20 (in the direction indicated by the arrow B in FIG. 2), and includes a light source 60, a light guide 70, and a light distribution plate 80. . As shown in FIG. 3, a light source 60 is installed on a substrate 65 as a light source of the illumination device 50. The board 65 is disposed on the back side of the switch device 5 (in the direction indicated by the arrow B in FIG. 3) from the viewpoint of design layout. A transparent light guide 70 is provided in the gap between the switch device 5 and the display device 3 as a whole in an arcuate shape. The light guide 70 has a light receiving surface 72 and a light emitting surface 74, the light receiving surface 72 is disposed toward the light source 60, and the light emitting surface 74 is disposed toward the illumination opening 28 of the cluster panel 20. . On the optical path between the light emitting surface 74 of the light guide 70 and the illumination opening 28 of the cluster panel 20, a light distribution plate 80 bent in a crank shape is provided. The light distribution plate 80 is disposed so as to cover the openings 28 of the cluster, and the light incident surface 85 of the light distribution plate 80 is colored so that the light transmission amount is different in each part. Details of the configurations of the light guide 70 and the light distribution plate 80 will be described below.

  The light guide 70 is demonstrated using FIG.4 and FIG.5. FIG. 4 is a front view of the light guide body 70, and FIG. 5 is a top view of the light guide body 70. The light guide 70 is formed of a transparent acrylic member and is formed into a bow shape, and light receiving surfaces 72 indicated by oblique lines are formed at both ends of the bow shape. In addition, a light emitting surface 74 (indicated by hatching in the figure) is formed on an arcuate arch portion (a bar-like portion in the center).

  Light incident on the light receiving surface 72 of the light guide 70 from the light source 60 is reflected by the inner surface of the arcuate light guide 70 and reaches the light emitting surface 74. The light reaching the light emitting surface 74 is emitted mainly in the vertical direction (the direction indicated by the arrow F in FIG. 4) while partially diffusing due to the texture processing applied to the light emitting surface 74. .

  Thus, the light guide 70 can guide the light incident from the light receiving surface 72 to the light emitting surface 74 and emit the light in a predetermined direction. In the present embodiment, a part of the light emitted from the light source 60 enters the light receiving surface 72, the light is transmitted through the light guide 70, and the light distribution plate 80 that covers the illumination opening 28 from the light emitting surface 74. Radiated towards

  In addition, although the shape of the light guide 70 of this embodiment was made into the above-mentioned arcuate shape, it is not limited to this. The shape of the light guide is appropriately determined according to the position where the light source is arranged, the surrounding layout environment through which the light guide passes, the direction of the illumination opening, and the shape of the reflection surface.

  The light distribution plate 80 will be described with reference to FIGS. 6 and 7. 6 is a front view of the light distribution plate 80, and FIG. 7 is a top view of the light distribution plate. The light distribution plate 80 is a transparent plastic plate having a thickness of 0.3 mm, and its cross section is bent into a crank shape. As shown in FIG. 7, a light incident surface 85 on which light from the light guide 70 is incident, a light emitting surface 82 on which the incident light is transmitted and emitted through the light distribution plate 80, and the back surface of the cluster panel 20. Adhesive surfaces 83 and 84 bonded to the side are formed.

  As shown in FIG. 3, the bonding surfaces 83 and 84 are bonded and fixed to the cluster panel back surface 21 around the illumination opening 28. Accordingly, the illumination opening 28 is covered by the light distribution plate 80. As a result, even if the lighting opening 28 is viewed from the interior of the vehicle through the design panel 40, the display device 3 and the light guide 70 on the back side of the opening 28 cannot be seen, so that the appearance quality of the panel assembly 10 is good. It can be.

  On the other hand, the light incident surface 85 is colored with shading in each part. In the light incident surface 85, the upper and lower two regions 86 surrounded by the one-dot chain line in FIG. 6 and indicated by a cross hatch are colored with a deep milky white color to form a low transmittance region 86 having a low light transmittance. . On the other hand, in the light incident surface 85, a region 87 surrounded by an alternate long and two short dashes line in FIG. 87 is formed. The portions other than the low transmittance region 86 and the medium transmittance region 87 are colored with a light milky white color as a whole, and a high transmittance region 89 having a high light transmittance on the light incident surface 85 is formed.

  In addition, coloring of the area | region where these light transmittances differ is implement | achieved by printing the coating material from which light transmittance differs. Further, the same paint may be printed with different thicknesses. For example, a method is used in which a light-colored high-transmittance region 89 is printed thinly and a dark-colored low-transmittance region 86 is printed thickly. As printing for varying the thickness of the paint, it is also preferable to use multilayer printing.

  As described above, three regions (low transmittance region 86, medium transmittance region 87, and high transmittance region 89) having different light transmittances are formed on the light incident surface 85.

  Here, the light on the optical path that is emitted from the light emitting surface 74 of the light guide 70 and is incident on the light incident surface 85 of the light distribution plate 80 is a direction along the edges 47 and 48 of the design panel (illumination regions 43 and 44). In the longitudinal direction) has a luminance distribution defined by the location of the light source and the shape of the light guide 70.

  Therefore, the light transmittance is lowered by disposing the low transmittance region 86 at the portion of the light incident surface 85 where the luminance of the incident light is high, that is, by applying a dark color. Similarly, a medium transmittance region 87 is disposed at a portion where the luminance of incident light is medium to lower the light transmittance to some extent. A high transmittance region 89 is arranged at a portion where the incident luminance is low to maintain a high light transmittance.

  In this way, depending on the luminance distribution of the light incident on the light incident surface 85, the light is emitted from the light emitting surface 82 by being colored and colored with different light transmittances, and reflected from the cluster panel 20. 26 and the brightness distribution in the direction along the edges 47 and 48 of the design panel of the light reaching the design panel 40 is smoothed.

  In addition, although the light distribution plate 80 of the present embodiment is configured to be colored by adding light and shade in three stages, the present invention is not limited to this. A configuration may be adopted in which the light transmittance is varied by adding light and shade infinitely according to the luminance distribution of the light incident on the light incident surface 85.

  Further, the light distribution plate 80 of the present embodiment varies the light transmittance by coloring, and thereby the luminance distribution in the direction along the edges 47 and 48 of the design panel of light reaching the reflective surface of the cluster panel and the design panel. However, the present invention is not limited to this. By forming Fresnel lens-shaped irregularities on the surface of the light incident surface 85 and diffusing light by the irregularities, the edges 47 of the design panel 40 of the light reaching the reflective surface 26 and the design panel 40 of the cluster panel 20 are obtained. A configuration in which the luminance distribution in the direction along 48 is smoothed is also preferable.

  Moreover, although the light distribution plate 80 of the present embodiment is configured to smooth the luminance distribution in the direction along the edges 47 and 48 of the design panel, the present invention is not limited to this. Even if the luminance distribution in the direction orthogonal to the direction along the edges 47 and 48 of the design panel (the direction indicated by the arrow Y in FIG. 2) is smoothed by the coloring shape or the uneven shape applied to the light distribution plate 80. good.

  When the four light sources 60 arranged on the back side of the cluster panel 20 emit light, the light enters the light receiving surfaces 72 of the light guides 70 facing each other. The light incident on the light receiving surface 72 is guided to the light emitting surface 74 while being reflected by the inner surface of the light guide 70. The light emitted from the light emitting surface 74 is incident on the light incident surface 85 of the light distribution plate 80 as shown in FIG.

  Here, the light incident surface 85 is colored with shading as shown in FIG. 6, and a portion of the light incident surface 85 where light with high luminance (strong light) is incident is colored with a dark color. That is, a low transmittance region 86 is disposed, and a light coloration, that is, a high transmittance region 89 is disposed at a portion where light with low luminance (weak light) is incident. Light that is transmitted through the dark-colored portion, that is, the low-transmittance region 86 and is emitted from the light emitting surface 82 reduces its luminance. On the other hand, the brightness of the light that is transmitted through the light-colored portion, that is, the high transmittance region 89 and is emitted from the light emitting surface 82 slightly decreases. Thereby, the light emitted from the light emitting surface 82 has a smoother luminance distribution in the direction along the edges 47 and 48 of the design panel than the light incident from the light incident surface 85. That is, luminance unevenness is reduced.

  As shown in FIG. 3, the light emitted from the light emitting surface 82 reaches the reflecting surface 26 and the design panel 40 through the opening 28 of the cluster panel 20. The light reaching the reflecting surface and the design panel 40 has a smoothed luminance distribution in the direction along the edges 47 and 48 of the design panel 40. The illumination areas 43 and 44 of the design panel 40 are illuminated from the back surface 46 by the reflected light reflected by the reflecting surface 26 and the light directly reaching the design panel 40 from the light distribution plate 80.

  Here, of the light that passes through the light distribution plate and reaches the illumination areas 43 and 44, the light that directly reaches the design panel 40 as shown by the optical path H in FIG. The brightness is higher than the light that is reflected at 26 and reaches the design panel 40. Further, since the reflecting surface 26 has a shape that is gently curved toward the back side (the direction indicated by the arrow B in FIG. 3) toward the outside (the side having the illumination opening 28), the illumination opening of the reflecting surface 26 is provided. The light reflected at a portion closer to 28 has higher luminance, and the light reflected at a portion far from the illumination opening 28 of the reflecting surface 26 has lower luminance.

  As described above, the illumination regions 43 and 44 of the design panel 40 are illuminated from the back by light whose luminance distribution is smoothed in the longitudinal direction (the direction along the edges 47 and 48 of the design panel), thereby causing uneven luminance. Reduced light emission. In addition, in the width direction of the illumination areas 43 and 44 (the direction perpendicular to the direction along the edges 47 and 48 of the design panel, the direction indicated by the arrow Y in FIG. 2), the part farther from the illumination opening 28 Light is emitted in a gradation so as to become darker (low brightness) and gradually brighter (higher brightness) toward a portion close to the illumination opening 28.

  As described above, since the illumination device 50 includes the light distribution plate 80 that smoothes the luminance distribution in the longitudinal direction of the illumination areas 43 and 44, the illumination areas 43 and 44 of the design panel 40 can It can be illuminated from the back with light with reduced unevenness. That is, the illumination areas 43 and 44 of the design panel 40 of the control panel unit 1 can be emitted toward the vehicle interior with reduced luminance unevenness.

  As a result, the illumination areas 43 and 44 of the design panel 40 can be seen to emit light uniformly along the longitudinal direction from the passenger compartment, and new illumination is provided to the control panel unit 1. be able to.

  Further, by arranging the light distribution plate 80 so as to cover the illumination opening 28 of the cluster panel 20, the components on the back side of the illumination opening 28 cannot be seen from the vehicle interior. Thereby, the appearance quality of the design panel 40 of the control panel unit 1 can be made favorable.

  In addition, instead of the light distribution plate 80 of the present embodiment, a light distribution plate having irregularities for diffusing light so as to smooth the luminance distribution of light reaching the reflective surface of the cluster panel and the design panel may be provided. Even if a light source with low luminance is used, the illumination area of the design panel can be illuminated from the back more efficiently.

It is a front view of the control panel unit of this embodiment. It is a disassembled perspective view of the control panel unit of this embodiment. It is sectional drawing by the AA line of FIG. It is a front view of the light guide of this embodiment. It is a top view of the light guide of this embodiment. It is a front view of the light distribution plate of this embodiment. It is a top view of the light distribution plate of this embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Control panel unit, 10 Panel assembly, 20 Cluster panel, 26 Reflecting surface, 28 Illumination opening, 30 Receiving part, 40 Design panel, 43,44 Illumination area, 47,48 Edge, 50 Illumination device, 60 Light source, 65 Board | substrate , 70 Light guide, 72 Light receiving surface, 74 Light emitting surface, 80 Light distribution plate, 82 Light emitting surface, 85 Light incident surface, 86 Low transmittance region, 87 Medium transmittance region, 89 High transmittance region

Claims (6)

A lighting device for illuminating a predetermined portion of a panel assembly, which constitutes a surface of a control device for vehicle equipment,
The panel assembly includes a cluster panel, and a design panel arranged to cover a part of the front surface of the cluster panel,
The design panel has an illumination area along the edge adjacent to the edge,
The cluster panel has a reflective surface formed facing the illumination area of the design panel, and an opening adjacent to the reflective surface,
Furthermore, a light source arranged on the back side of the cluster panel,
A light guide that guides light from the light source to the aperture of the cluster panel;
Colored with light and shade so as to smooth the luminance distribution in the direction along the edge of the design panel of the light reaching the reflective surface and the design panel provided on the optical path between the opening of the cluster panel and the light guide Light distribution plate,
With
Of the light that has passed through the light distribution plate, the light that has reached the reflective surface is reflected toward the design panel here, and together with the light that reaches the design panel directly from the light distribution plate, illuminates the illumination area of the design panel from the back. Lighting device. A lighting device for illuminating a predetermined portion of a panel assembly, which constitutes a surface of a control device for vehicle equipment,
The panel assembly includes a cluster panel, and a design panel arranged to cover a part of the front surface of the cluster panel,
The design panel has an illumination area along the edge adjacent to the edge,
The cluster panel has a reflective surface formed facing the illumination area of the design panel, and an opening adjacent to the reflective surface,
Furthermore, a light source arranged on the back side of the cluster panel,
A light guide that guides light from the light source to the aperture of the cluster panel;
A light distribution plate provided on an optical path between the opening of the cluster panel and the light guide, and having unevenness for diffusing light;
With
Of the light that has passed through the light distribution plate, the light that has reached the reflective surface is reflected toward the design panel here, and together with the light that reaches the design panel directly from the light distribution plate, illuminates the illumination area of the design panel from the back. Lighting device. The lighting device according to claim 1 or 2,
The light distribution plate covers the opening of the cluster panel. A control panel unit that constitutes a surface of a control device for a vehicle equipment device, and a predetermined portion emits light,
The control panel unit includes a cluster panel and a design panel arranged to cover a part of the front of the cluster panel,
The design panel has an illumination area along the edge adjacent to the edge,
The cluster panel has a reflective surface formed facing the illumination area of the design panel, and an opening adjacent to the reflective surface,
Furthermore, a light source arranged on the back side of the cluster panel,
A light guide that guides light from the light source to the aperture of the cluster panel;
Colored with light and shade so as to smooth the luminance distribution in the direction along the edge of the design panel of the light reaching the reflective surface and the design panel provided on the optical path between the opening of the cluster panel and the light guide Light distribution plate,
With
Of the light transmitted through the light distribution plate, the light that reaches the reflecting surface is reflected toward the design panel here,
A control panel unit that emits light by illuminating the illumination area of the design panel from the back by the reflected light and the light directly reaching the design panel from the light distribution plate. A control panel unit that constitutes a surface of a control device for a vehicle equipment device, and a predetermined portion emits light,
The control panel unit includes a cluster panel and a design panel arranged to cover a part of the front of the cluster panel,
The design panel has an illumination area along the edge adjacent to the edge,
The cluster panel has a reflective surface formed facing the illumination area of the design panel, and an opening adjacent to the reflective surface,
Furthermore, a light source arranged on the back side of the cluster panel,
A light guide that guides light from the light source to the aperture of the cluster panel;
A light distribution plate provided on an optical path between the opening of the cluster panel and the light guide, and having unevenness for diffusing light;
With
Of the light transmitted through the light distribution plate, the light that reaches the reflecting surface is reflected toward the design panel here,
A control panel unit in which the illumination area of the design panel is illuminated from the back by the reflected light and the light directly reaching the design panel from the light distribution plate. The control panel unit according to claim 4 or 5,
The light distribution plate covers a cluster panel opening, and is a control panel unit.

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