JP6172085B2 - Vehicle display device - Google Patents

Description

  The present invention relates to a vehicle display device for displaying vehicle information.

  2. Description of the Related Art Conventionally, in order to decorate a display panel that displays vehicle information in a visible manner from the front of a display surface, a vehicle display device in which a decorative member is disposed in front of the display surface has been widely used.

  As a kind of such vehicle display device, in Patent Document 1, light leaked from the pointer light source through the opening in front of the display surface is incident on the reflection surface of the decorative member along the display surface, and thus forwards. Reflected towards. Since such reflected light is visually recognized by the front passenger as light leaking from the opening and light according to the color tone of the reflecting surface, it is possible to enhance the decorative effect of the decorative member.

Japanese Patent Laid-Open No. 2003-22539

  Now, in the vehicle display device disclosed in Patent Document 1, the reflection surface is diffusely illuminated by utilizing the leaked light from the opening for the purpose of reducing the light source, so the entire surface of the decorative member It is thought that glossiness is imparted to. However, it is difficult to say that the decoration effect by the decorative member can be sufficiently enhanced only by such a decorative decoration with diffuse illumination.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a vehicle display device that enhances a decorative effect by a decorative member.

The invention disclosed to solve the above-described problems is
A display board (10) for displaying vehicle information so as to be visible from the front of the display surface (101);
A decorative member (50) that is disposed in front of the display surface and decorates the display board, the decorative member having a reflective surface (500);
The first emission part (401b, 2401b, 3400a) is provided in front of the display surface, the first light source light (L1) is reflected forward by the reflection surface, and the virtual image (502, 2502, 3502) of the first emission part. ) To be visible from the front, the first light source unit (40, 2040, 3040) that emits the first light source light directed from the first emitting part toward the reflecting surface with directivity along the display surface;
The second light source that has a second emitting part (420a) in front of the reflecting surface and diffuses and illuminates the reflecting surface to reflect and scatter the second light source light (L2) forward by the reflecting surface. A second light source unit (42) for emitting light from the second emission part;
A control unit (80) for switching and controlling a first mode (Mnn, Mns) for emitting the first light source light from the first emission part and a second mode (Md) for emitting the second light source light from the second emission part. , Provided.

  According to the first mode of the present invention, the first light source light is emitted from the first emission part in front of the display surface by the first light source unit. The first light source light emitted in this way is incident on the reflecting surface of the decorative member by the directivity along the display surface and reflected forward, so that a virtual image of the first emitting portion visible from the front passenger can be obtained. indicate. At this time, the virtual image can be visually recognized three-dimensionally by the occupant with a pseudo perspective as if it is transmitted through the reflecting surface from the rear, along with a contour shape corresponding to the outer edge of the first emitting portion.

  On the other hand, according to the second mode, the second light source unit emits the second light source light from the second light emitting unit in front of the reflecting surface. The second light source light emitted in this way is reflected and scattered forward by the diffused illumination of the reflection surface, so that the reflection surface can be visually recognized by a front passenger as a decoration that gives glossiness.

  Therefore, according to these 1st mode and 2nd mode, a three-dimensional virtual image display and the decoration of glossiness provision different from it can be switched by a control unit, and it can produce appearance. Therefore, the decorative effect by the decorative member can be enhanced.

Another disclosed invention is as follows:
A third light source unit (44) which has a third emission part (440a) behind the reflection surface and illuminates the reflection surface forward by the third light source light (L3) emitted from the third emission part. With
The reflection surface has a first reflection part (500a) facing forward, and a second reflection part (500b) that is inclined on the first emission part side with respect to the first reflection part,
In the first mode in which the control unit emits the first light source light from the first emission part and emits the third light source light from the third emission part, the first reflection part is the third light source light incident from the third emission part And the second reflecting part restricts the transmission of the third light source light incident from the third emitting part to the front side more than the first reflecting part and enters the first reflecting part from the first emitting part. Reflect the light source light forward,
In the second mode in which the control unit emits the second light source light from the second emission part, both the first reflection part and the second reflection part are directed forward of the second light source light incident from the second emission part, respectively. It is characterized by reflection.

  According to the first mode of the present invention, the third light source unit emits the third light source light from the third light emitting unit behind the reflection surface. The third light source light emitted in this way can be visually recognized by a front passenger as a local illumination decoration by transmitting and illuminating the first reflecting portion facing forward in the reflecting surface. At this time, according to the second reflecting portion that is inclined with respect to the first reflecting portion on the first emitting portion side, the third light source light is more restricted from being transmitted forward than the first reflecting portion. The light is reflected forward. Therefore, the three-dimensional virtual image display in the 2nd reflection part adjacent to it with the local illumination decoration in the 1st reflection part can also be visually recognized simultaneously by the front passenger | crew.

  On the other hand, according to the second mode, the second light source unit emits the second light source light from the second light emitting unit in front of the reflecting surface. The second light source light emitted in this way is reflected and scattered by the diffuse illumination of both the first reflecting portion and the second reflecting portion of the reflecting surface. Therefore, the 1st reflection part and the 2nd reflection part which form a sense of perspective in the mutually close location can be visually recognized by the front passenger as decoration which gives three-dimensional luster.

  Therefore, according to the first mode and the second mode, the control unit switches between a three-dimensional virtual image display close to the local illumination decoration and a three-dimensional glossy decoration different from that. , You can direct the appearance. Therefore, the decorative effect by the decorative member can be dramatically increased.

It is a front view of the display apparatus for vehicles in daytime display mode by a first embodiment. It is a front view of the display apparatus for vehicles in night normal display mode by a first embodiment. It is a front view of the display apparatus for vehicles in night sports display mode by a first embodiment. It is sectional drawing of the display apparatus for vehicles in daytime display mode by 1st embodiment, Comprising: It is the IV-IV sectional view taken on the line of FIG. It is sectional drawing of the display apparatus for vehicles in night normal display mode by 1st embodiment, Comprising: It is the VV sectional view taken on the line of FIG. It is sectional drawing of the display apparatus for vehicles in night sports display mode by 1st embodiment, Comprising: It is the VI-VI sectional view taken on the line of FIG. It is a perspective view which expands and shows a part of display apparatus for vehicles by a first embodiment. It is a perspective view which expands and shows a part of display apparatus for vehicles by a first embodiment. It is a graph which shows the characteristic of the display apparatus for vehicles by a first embodiment. It is a flowchart which shows the control flow of the display apparatus for vehicles by 1st embodiment. It is sectional drawing of the display apparatus for vehicles in night normal display mode by 2nd embodiment, Comprising: It is the XI-XI sectional view taken on the line of FIG. It is a front view of the display apparatus for vehicles in night normal display mode by a second embodiment. FIG. 15 is a cross-sectional view of the vehicle display device in the night normal display mode according to the third embodiment, and is a cross-sectional view taken along line XIII-XIII in FIG. 14. It is a front view of the display apparatus for vehicles in night normal display mode by a third embodiment. It is a perspective view which expands and shows a part of display apparatus for vehicles by a 4th embodiment. It is sectional drawing of the display apparatus for vehicles by the night normal display mode by the modification of 1st embodiment, Comprising: It respond | corresponds to the VV sectional view taken on the line of FIG. It is sectional drawing of the display apparatus for vehicles by the night normal display mode by the modification of 1st embodiment, Comprising: It respond | corresponds to the VV sectional view taken on the line of FIG. It is a perspective view which expands and shows a part of display apparatus for vehicles by the modification of 1st embodiment.

  Hereinafter, a plurality of embodiments of the present invention will be described with reference to the drawings. In addition, the overlapping description may be abbreviate | omitted by attaching | subjecting the same code | symbol to the corresponding component in each embodiment. When only a part of the configuration is described in each embodiment, the configuration of the other embodiment described above can be applied to the other part of the configuration. In addition, not only combinations of configurations explicitly described in the description of each embodiment, but also the configurations of a plurality of embodiments can be partially combined even if they are not explicitly specified unless there is a problem with the combination. .

(First embodiment)
As shown in FIGS. 1-3, the display apparatus 1 for vehicles by 1st embodiment of this invention is installed in an instrument panel among the vehicle interiors of a vehicle as a combination meter which displays vehicle information. Under such an installation state, the device 1 provides predetermined vehicle information in a plurality of types of display modes to passengers on the driver's seat located in front of the display direction.

  In the vehicle to which the device 1 is applied in the present embodiment, as three types of display modes, the daytime display mode Md shown in FIGS. 1 and 4, the night normal display mode Mnn shown in FIGS. 2 and 5, and FIGS. The night sports display mode Mns shown in FIG. Specifically, the daytime display mode Md is a display mode when the light switch 2 (see FIGS. 4 to 5) of the vehicle is operated to the all-lamp off position by the occupant. The normal display mode Mnn at night is a display mode when the light switch 2 of the vehicle is operated by the occupant to the vehicle width lamp on position or the headlamp on position and the vehicle is in a normal running state. Furthermore, the night sport display mode Mns is a display mode when the light switch 2 of the vehicle is operated by the occupant to the vehicle width lamp on position or the headlamp on position and the vehicle is in the sport running state. Here, the sport running state is a running state in which the response and acceleration performance of the engine is improved by increasing the engine rotation speed at the time of upshifting than in the normal running state in the vehicle. The normal running state and the sport running state are switched according to the operation position of the vehicle travel changeover switch 3 (see FIGS. 4 to 5).

  First, the configuration of the apparatus 1 will be described. As shown in FIGS. 1 and 4, the apparatus 1 includes a display board 10, a pointer 20, a drive source 30, first to fifth light source units 40, 42, 44, 46, 48, a decorative ring 50, a hood 60, a cover 70, and A control unit 80 is provided.

  The display board 10 is mainly formed of a translucent substrate 100 such as a polycarbonate resin, and has a substantially rectangular flat plate shape. The display surface 101 formed by the translucent substrate 100 on the display panel 10 is arranged toward the driver's seat on the front side. The display board 10 has a pair of display areas 102 arranged in the left-right direction of the vehicle. As shown in FIG. 1, in each display region 102, the light shielding layer 103 laminated with a non-transparent acrylic resin or the like is partially cut on the rear surface of the translucent substrate 100, so that an annular transmission is achieved. The window 102b is formed so as to be capable of transmitting illumination from the rear. At the same time, in each display region 102, as shown in FIGS. 1 and 4, a plurality of indicators 102a such as scales and numerals are transmitted from behind on the inner peripheral side of the transmission window 102b by partially cutting the light shielding layer 103. It is made possible. In FIGS. 1 to 3, only a part of the indicators 102a are denoted by reference numerals in order to improve the visibility.

  Here, in the display area 102 on the right side, the indicator 102a is instructed by the pointer 20 among the indicators 102a arranged along the circumference, so that the vehicle speed as the vehicle information corresponds to which display mode Md, Also displayed in Mnn and Mns. Further, in the display area 102 on the left side, one of the indicators 102a arranged along the circumference is instructed by the pointer 20 so that the engine speed as the vehicle information can be set in any display mode. Also displayed in Md, Mnn, and Mns. With such a configuration, the vehicle speed and the engine speed displayed in each display area 102 can be visually recognized from the occupant ahead of each pointer 20 disposed in front of the display surface 101.

  As shown in FIGS. 1 and 4, the pointer 20 is mainly formed of a translucent main body 200 such as an acrylic resin, and is provided at a position corresponding to each display region 102 in front of the display surface 101. . Each pointer 20 is rotatable about the rotation axis O. Here, the rotation axis O of each pointer 20 is aligned with the circumference in which the indicators 102a are arranged in the corresponding display area 102. The elongated needle-like translucent main body 200 that emits light by transmitted illumination in each pointer 20 indicates an index 102a corresponding to its own rotational position in the corresponding display area 102 by the tip portion, thereby allowing vehicle speed or engine rotation. Display the number towards the front passenger.

  In the translucent main body 200 of each pointer 20, the base end of the indicator 102 a opposite to the distal end on the indication side is formed by a cylindrical translucent boss 201 centered on the rotation axis O as shown in FIG. 4. It is supported so that it can rotate integrally. In each pointer 20, the inclined surface 201 a formed by the translucent boss 201 reflects the light source light L <b> 4 (see FIGS. 4 to 6) from the rear toward the translucent main body 200 on the side, thereby the main body 200. Is transmitted and illuminated. 1 and 4, the translucent boss 201 is covered with a light-shielding cap 202 formed in a bottomed cylindrical shape with the rotation axis O as the center. Here, the light-shielding cap 202 is formed of a non-transparent polypropylene resin or the like as a “light-shielding member”, thereby shielding the translucent boss 201 from the front passenger substantially invisible.

  The drive source 30 is composed of a stepping motor or a cross coil type rotary machine that drives the rotary shaft 300, and one drive source 30 is provided at a position corresponding to each pointer 20 in the rear of the display board 10. As shown in FIG. 4, the rotation shaft 300 of each drive source 30 passes through the display panel 10 in the front-rear direction, and is coaxially connected to the translucent boss 201 of the corresponding pointer 20. Each drive source 30 rotates the translucent main body 200 of the corresponding pointer 20 by driving the rotating shaft 300 according to energization.

  The first light source unit 40 is formed by combining a plurality of first light emitters 400 with the light guides 401, and one set is provided across the front and rear of the display board 10 at locations corresponding to the pointers 20. In each first light source unit 40, the first light emitter 400 is composed of an LED chip in which blue and red light emitting diodes are packaged in this embodiment, and responds to energization at a plurality of locations around the rotation axis O. Emits color. In each first light source unit 40, the light guide 401 is formed of a translucent acrylic resin or the like into a stepped cylindrical shape with the rotation axis O as the center, and is disposed through the display board 10 in the front-rear direction. The light guide 401 of each first light source unit 40 has an incident portion 401 a and a first light emitting portion 401 b around the rotation axis O of the corresponding pointer 20. Here, as shown in FIGS. 5 and 6, the blue light B or red R light from the light emitter 400 is placed on the incident portion 401 a facing the entire first light emitter 400 in the rear of the display panel 10. One light source light L1 is incident. The first light source light L1 incident on the incident portion 401a is emitted from the first emitting portion 401b arranged in front of the display surface 101 and behind the corresponding light shielding cap 202 toward the side.

  In such a light guide body 401 of each first light source unit 40, the incident first light source light L1 is sequentially reflected from the incident portion 401a by the three tapered surface portions 401c, 401d, 401e between the incident portion 401a and the first emitting portion 401b. Then, the light is guided to the first emission part 401b. With such a light guide form, the first light source light L1 emitted from the first emission part 401b to the side is directed along the display surface 101 so as to be directed to the reflection surface 500 of the corresponding decorative ring 50. Sex is imparted. However, the first light source light L1 of the present embodiment is under the provision of directivity toward the reflecting surface 500 along the display surface 101, but the first emitting portion is controlled so as to be restricted toward the front passenger. It is blocked by a light shielding cap 202 located on the rotation axis O in front of 401b.

  As shown in FIGS. 1 and 4, the second light source unit 42 includes a plurality of second light emitters 420 combined with a diffusion plate 421, and is provided at a plurality of locations on the hood 60 surrounding the front space of the display surface 101. In the second light source unit 42, the second light emitter 420 is configured by an LED chip on which a white light emitting diode is mounted in the present embodiment, and emits light when energized at a diagonally forward location on the display surface 101. In the second light source unit 42, the diffusing plate 421 is formed in an annular plate shape by an acrylic resin or the like to which light diffusibility is given, and as shown in FIG. Opposed to each other. Here, the diffusing plate 421 diffuses the white W second light source light L2 incident from each of the second emitting portions 420a to be in a surface emitting state, so that the reflecting surface 500 of each decorative ring 50 positioned obliquely rearward. Diffuse lighting.

  As shown in FIGS. 1 and 4, the third light source unit 44 is formed by combining a plurality of third light emitters 440, and one set is provided at a position corresponding to each display region 102 in the rear of the display panel 10. . In each third light source unit 44, the third light emitter 440 is configured by an LED chip on which a white light emitting diode is mounted in the present embodiment, and emits light when energized at a plurality of locations around the rotation axis O. At this time, as shown in FIGS. 5 and 6, the third light emitter 440 of each third light source unit 44 has a white W third on the transmission window 102 b facing the third emission part 440 a in the corresponding display region 102. By making the light source light L3 incident, the transmission window 102b is transmitted and illuminated. Here, the white W third light source light L3 emitted from the third light emitting portion 440a of each third light source unit 44 and transmitted through the transmission window 102b corresponds to the decorative ring 50 disposed in front of the display surface 101 correspondingly. The reflective surface 500 is transmitted and illuminated further forward. In FIGS. 1 to 3, only a part of the third light emitters 440 are denoted by reference numerals in order to improve the visibility.

  As shown in FIG. 4, the fourth light source unit 46 is formed by combining a plurality of fourth light emitters 460, and one set is provided at a position corresponding to each pointer 20 in the rear of the display panel 10. In each fourth light source unit 46, the fourth light emitter 460 is configured by an LED chip on which a white light emitting diode is mounted in the present embodiment, and emits light when energized at a plurality of locations around the rotation axis O. At this time, as shown in FIGS. 4 to 6, the fourth light emitters 460 of the fourth light source units 46 have white W on the translucent bosses 201 of the corresponding pointers 20 facing the fourth light emitting portions 460a. Four light source lights L4 are made incident. As a result, transmission illumination is performed from the translucent boss 201 to the translucent main body 200.

  As shown in FIG. 4, the fifth light source unit 48 is formed by combining a plurality of fifth light emitters 480, and one set is provided at a position corresponding to each display region 102 in the rear of the display panel 10. In each fifth light source unit 48, the fifth light emitter 480 is constituted by an LED chip on which a white light emitting diode is mounted in the present embodiment, and emits light when energized at a plurality of locations around the rotation axis O. At this time, as shown in FIGS. 4 to 6, the fifth light emitter 480 of each fifth light source unit 48 has a white W fifth light source on the indicator 102 a facing the fifth emitting portion 480 a in the corresponding display region 102. By making the light L5 incident, the indicator 102a is transmitted and illuminated.

  As shown in FIGS. 1 and 4, the decorative ring 50 that decorates the display board 10 as a “decorative member” is formed in an annular shape mainly having a light-transmitting base material 503 such as acrylic resin, and is arranged in front of the display surface 101. One of them is provided at a location corresponding to each display area 102. Each decoration ring 50 is fixed to the display plate 10 so as to be aligned with the rotation axis O of the pointer 20 in the corresponding display area 102, thereby reflecting the reflection surface along the circumference centered on the coaxial line O. 500 is formed. In each decorative ring 50, the reflective surface 500 includes a thin first reflective portion 500a of a metal reflective film 501 laminated with aluminum or the like on the front surface of the translucent substrate 503, and a thick second reflective portion 500b of the reflective film 501. have.

  Here, the first reflecting portion 500a is formed in a tapered surface shape that inclines backward, for example, 20 degrees toward the outer peripheral side. The first reflecting portion 500a facing forward due to such a shape reflects the second light source light L2 incident as shown in FIG. 4 through the diffusion plate 421 from each of the second emitting portions 420a arranged in front of itself. And scatter. The second light source light L2 thus scattered enters the occupant's eyes, so that the occupant can visually recognize the first reflecting portion 500a that emits the entire surface with metallic luster from the front. On the other hand, the first reflection part 500a transmits the third light source light L3 incident as shown in FIGS. 5 and 6 through the transmission window 102b from the third emission part 440a arranged corresponding to the rear of the first reflection part 500a. Let The third light source light L3 thus transmitted and incident is incident on the occupant's eyes, so that the occupant can visually recognize the first reflecting portion 500a that emits light entirely from the front side.

  The second reflecting portion 500b is formed in a tapered surface shape adjacent to the inner peripheral side of the first reflecting portion 500a. With this shape, the second reflecting portion 500b is inclined with respect to the first reflecting portion 500a on the corresponding first emitting portion 401b side. The second reflecting portion 500b is inclined, for example, 45 degrees rearward toward the inner peripheral side that is the corresponding first emitting portion 401b side, so that the second reflecting portion 500b extends along the display surface 101 from the emitting portion 401b as shown in FIGS. The first light source light L1 that enters is reflected forward. The first radiating light source L1 that is reflected in this way is incident on the eyes of the occupant, so that the first emitting portion 401b that is displayed as a virtual image in a crystal-like light emission state behind the second reflecting portion 500b, The passenger is visible from the front. That is, the virtual image 502 of the first emission part 401b shown with cross-hatching in FIGS. 2 and 3 is displayed with a pseudo perspective as if part of the second reflection part 500b is transmitted from behind. Is done.

  On the other hand, the second reflecting portion 500b reflects and scatters the second light source light L2 incident as shown in FIG. 4 from each second emitting portion 420a disposed in front of itself through the diffusion plate 421 as shown in FIG. . The second light source light L2 thus scattered enters the occupant's eyes, so that the occupant can visually recognize the second reflecting portion 500b that emits light from the entire surface with metallic luster from the front. However, the second reflecting portion 500b of the present embodiment is adapted to the third light source light L3 incident as shown in FIGS. 5 and 6 from the third emitting portion 440a arranged corresponding to the rear side of the second reflecting portion 500b through the transmission window 102b. Since the light-shielding property is exhibited, the forward transmission is limited more than the first reflection unit 500a.

  As shown in FIGS. 1 and 4, the hood 60 is formed in a substantially rectangular frame shape using opaque polypropylene or the like, and is fixed to the outer peripheral edge of the display panel 10 in the entire circumferential direction. With this fixed form, the inner peripheral surface 600 of the hood 60 surrounds all of the pointer 20 and the decorative ring 50 disposed in the front space of the display surface 101 and holds the components 420 and 421 of the second light source unit 42. doing.

  As shown in FIG. 4, the cover 70 is formed in a plate shape with smoked glass or the like colored in a dark color, and is fixed to the opening edge of the hood 60 on the side opposite to the display plate 10 in the entire circumferential direction. . The cover 70 covering the front space of the display surface 101 with such a fixed form limits the transmittance of visible light to about 25 to 30%. Due to the transmittance limitation, the cover 70 can be moved outside the cover 70 as long as the light source lights L1, L2, L3, L4, and L5 traveling forward from the elements 200, 102a, and 500 are visible. Regulate the incidence of light.

  Under the configuration described so far, as shown in FIGS. 7 and 8, the surface area 101 a that forms the index 102 a between the first emitting portion 401 b and the reflecting surface 500 in the display surface 101 of each display area 102, and the hood 60. A plurality of convex portions 90 are arranged on the inner peripheral surface 600. Specifically, as shown in FIG. 7, each convex portion 90 protrudes from the surface region 101a in a sharp shape with a constant height H toward the front, and in this embodiment, in particular, a circular contour in a cross section. The taper shape decreases with a constant rate of change as the radius of the head increases. Moreover, as shown in FIG. 8, each convex part 90 protrudes in the sharp shape of fixed height H toward the inner peripheral side from the internal peripheral surface 600, and especially in this embodiment, the circular outline in a cross section The taper shape decreases with a constant rate of change as the radius of the head increases.

  Further, in both the surface region 101a and the inner peripheral surface 600 shown in FIGS. 7 and 8, the protrusions 90 are arranged in the two-dimensional directions at substantially the same and all constant arrangement pitch P. In the form, they are arranged in a two-dimensional square lattice. With this arrangement form, the entire area of the surface area 101 a (see FIGS. 4 to 6) that is secured in an annular band shape from the first emitting portion 401 b to the reflecting surface 500 in each display area 102 is the entire area of the inner peripheral surface 600. At the same time, it is occupied by the convex portion 90. Note that the arrangement pitch P is an interval between the base portions 90a that form the boundary with the surface region 101a or the inner peripheral surface 600 in each convex portion 90 and is sandwiched between the base portions 90a on both sides in each of the two-dimensional directions. The distance between the sharp apexes 90b of the convex part 90 substantially matches.

  Here, the arrangement pitch P of the convex portions 90 is set to a pitch shorter than the wavelength of the first light source light L1. For example, the arrangement pitch P is set to about 300 nm so as to be shorter than the wavelengths 450 to 495 nm of the blue B light used as the first light source light L1 and the wavelengths 620 to 750 nm of the red R light. Moreover, the protrusion height H of each convex part 90 enables the aspect ratio with respect to the arrangement pitch P to suppress the reflectance to 0.5% or less in the above-mentioned wavelength range of the first light source light L1 shown in FIG. The ratio is set to be 0.9 or more. For example, when the protrusion height H is set to 270 nm or more with respect to the arrangement pitch P of about 300 nm, the aspect ratio of 0.9 or more is satisfied.

  Furthermore, for the surface roughness determined by the protrusion height H of each convex portion 90 in both the surface region 101a and the inner peripheral surface 600, the surface roughness of each portion 500a, 500b is the same for any reflective surface 500. It is set small. For example, the average surface roughness of the portions 500a and 500b of the reflecting surface 500 is set to 50 nm or less so as to be smaller than the average surface roughness of the surface region 101a and the inner peripheral surface 600 corresponding to 270 nm according to the protrusion height H. The

  The control unit 80 shown in FIG. 4 is mainly composed of an electronic circuit such as a microcomputer, and is provided behind the display panel 10. The control unit 80 is communicably connected to the sensors (not shown) for detecting the vehicle speed and the engine speed, respectively, and the switches 2 and 3 via the in-vehicle LAN 6. At the same time, the control unit 80 is electrically connected to each drive source 30 and each light emitter 400, 420, 440, 460, 480. The control unit 80 having such a connection form adjusts the rotational position of each pointer 20 by controlling energization to each drive source 30 in accordance with signals from the sensors for the vehicle speed and the engine speed. Further, the control unit 80 switches the display mode by controlling the energization of the light emitters 400, 420, 440, 460, and 480 in accordance with the signals from the switches 2 and 3.

  Here, the control unit 80 switches the display mode to the daytime display mode Md as the “second mode” when the signal of the all-lamp off position is received from the light switch 2. In the daytime display mode Md, the control unit 80 turns off each of the first light emitters 400 and each of the third light emitters 440, and each of the second light emitters 420, each of the fourth light emitters 460, and each of the fifth light emitters. 480 is set to a white light emitting state. At this time, as shown in FIG. 4, the second light source light L2 of white W is emitted from each of the second emission parts 420a and is diffused by the diffusion plate 421, and from each of the fourth emission parts 460a and each of the fifth emission parts 480a. The white W fourth light source light L4 and the white W fifth light source light L5 are emitted. As a result of the above, in the daytime display mode Md, each of the first reflecting portions 500a and each of the second reflecting portions 500b is visually recognized as a glossy decoration that emits light like a metal, and each pointer 20 and each indicator 102a emits light. Is visually recognized.

  When receiving the signal of the vehicle width lamp ON position or the headlamp ON position from the light switch 2 and receiving the signal of the normal driving state from the driving changeover switch 3, the control unit 80 is in the “first mode”. The display mode is switched to the normal display mode Mnn at night. In the night normal display mode Mnn, the control unit 80 sets the second light emitters 420 to the extinguished state, sets the first light emitters 400 to the blue light emitting state, and further sets the third light emitters 440 and the fourth light emitters 460. And the fifth light emitters 480 are set in a white light emission state. As shown in FIG. 5, blue first light source light L1 and white W third light source light L3 are emitted from the first light emitting portions 401b and the third light emitting portions 440a, respectively, and the fourth light emitting portions 460a. In addition, the fourth light source light L4 of white W and the fifth light source light L5 of white W are emitted from the fifth emission parts 480a, respectively. As shown in FIG. 2, as a result of the above, the virtual image 502 of the first light emitting portion 401 b is visually displayed in a blue B crystal tone at the rear of each second reflecting portion 500 b, and at the same time, emits light locally. Each first reflection part 500a is visually recognized as the decoration. At the same time, the pointers 20 and the indicators 102a are viewed by emitting light locally.

  When receiving the signal of the vehicle width lamp ON position or the headlamp ON position from the light switch 2 and receiving the signal of the sport driving state from the driving changeover switch 3, the control unit 80 is in the “first mode”. The display mode is switched to the night sports display mode Mns. In the night sports display mode Mns, the control unit 80 puts the second light emitters 420 in the off state, puts the first light emitters 400 in the red light emitting state, and further sets the third light emitters 440 and the fourth light emitters 460. And the fifth light emitters 480 are set in a white light emission state. At this time, as shown in FIG. 6, the first light source L1 of red R and the third light source L3 of white W are emitted from the first light output portions 401b and the third light output portions 440a, respectively, and the fourth light output portions 460a. In addition, the fourth light source light L4 of white W and the fifth light source light L5 of white W are emitted from the fifth emission parts 480a, respectively. As shown in FIG. 3, as a result of the above, the virtual image 502 of the first emitting portion 401 b is visually displayed in red R crystal tone at the rear of each second reflecting portion 500 b, and at the same time, emits light locally. Each first reflection part 500a is visually recognized as the decoration. At the same time, the pointers 20 and the indicators 102a are viewed by emitting light locally.

  Next, the control flow by the control unit 80 will be described with reference to the flowchart shown in FIG. This control flow is started when an engine switch (not shown) of the vehicle is turned on by the occupant, and is ended when the switch is turned off by the occupant.

  First, in S101, the operation position of the light switch 2 is detected. As a result, when the detected operation position is the all-lamp off position, the process proceeds to S102 and the daytime display mode Md is executed. In the daytime display mode Md of S102, the first light emitters 400 and the third light emitters 440 are turned off, and the second light emitters 420, the fourth light emitters 460, the fifth light emitters 480, and the like. Is in a white light emitting state. Thereby, the second light source light L2 of white W is emitted from each of the second emission parts 420a and diffused by the diffusion plate 421. At the same time, the fourth light source light L4 of white W and the fifth light source light L5 of white W are emitted from the fourth light output portions 460a and the fifth light output portions 480a, respectively. Therefore, a decoration for giving glossiness appears by the respective first reflecting portions 500a and the respective second reflecting portions 500b that emit light in a metallic manner under the light emission of the pointers 20 and the indicators 102a.

  In contrast to such S102, when the operation position detected in S101 is the vehicle width lamp on position or the headlamp on position, the process proceeds to S103 and the operation position of the travel changeover switch 3 is detected. As a result, when the detected operation position is the switching position to the normal running state, the process proceeds to S104 and the night normal display mode Mnn is executed. On the other hand, when the detected operation position is the switching position to the sport running state, the process proceeds to S105 and the night sport display mode Mns is executed.

  Specifically, in the night normal display mode Mnn of S104, the second light emitters 420 are turned off, the first light emitters 400 are turned blue, and the third light emitters 440 and the fourth light emitters. 460 and the fifth light emitters 480 are set in a white light emission state. Thereby, the blue B first light source light L1 and the white W third light source light L3 are emitted from the first light emission portions 401b and the third light emission portions 440a, respectively. At the same time, the fourth light source light L4 of white W and the fifth light source light L5 of white W are emitted from the fourth light output portions 460a and the fifth light output portions 480a, respectively. Therefore, under the light emission of each pointer 20 and each indicator 102a, the virtual image 502 of the first emitting portion 401b is displayed and emitted in blue B crystal tone behind each second reflecting portion 500b, and at the same time, each emitted first reflection is emitted. The local lighting decoration by the part 500a appears.

  On the other hand, in the night sport display mode Mns of S105, each second light emitter 420 is turned off, each first light emitter 400 is turned red, each third light emitter 440, each fourth light emitter 460, Each of the fifth light emitters 480 is set in a white light emission state. Thus, the first light source light L1 for red R and the third light source light L3 for white W are emitted from the first light emission parts 401b and the third light emission parts 440a, respectively. At the same time, the fourth light source light L4 of white W and the fifth light source light L5 of white W are emitted from the fourth light output portions 460a and the fifth light output portions 480a, respectively. Therefore, under the light emission of each pointer 20 and each indicator 102a, the virtual image 502 of the first emitting portion 401b is displayed and emitted in red R crystal tone behind each second reflecting portion 500b, and at the same time, each emitted first reflection. The local lighting decoration by the part 500a appears.

(Function and effect)
The effects of the first embodiment described above will be described below.

  According to the night normal display mode Mnn and the night sports display mode Mns of the first embodiment, the first light source unit 40 emits the first light source light L1 from the first emission unit 401b in front of the display surface 101. The first light source light L1 emitted in this way is incident on the reflecting surface 500 of the decorative ring 50 by the directivity along the display surface 101 and is reflected forward, so that the first emission light visible from the front passenger is visible. The virtual image 502 of the part 401b is displayed. At this time, the virtual image 502 is visually recognized three-dimensionally by the occupant with a pseudo perspective (depth) as if it is transmitted through the reflecting surface 500 from the rear, along with a contour shape corresponding to the outer edge of the first emitting portion 401b. Can be done.

  On the other hand, according to the daytime display mode Md, the second light source unit 42 emits the second light source light L2 from the second light emitting unit 420a in front of the reflecting surface 500. The second light source light L2 emitted in this way is reflected and scattered forward by the diffused illumination of the reflective surface 500, so that the reflective surface 500 can be visually recognized by a front passenger as a decoration that gives glossiness.

  Therefore, according to these display modes Mnn, Mns, and Md, the display of the three-dimensional virtual image 502 and the glossy decoration different from the display can be switched by the control unit 80, and the appearance can be produced. Therefore, the decoration effect by the decoration ring 50 can be enhanced.

  Further, according to the first embodiment, the reflecting surface 500 formed along the circumference around the rotation axis O of the pointer 20 is from the first emitting portion 401b formed around the coaxial line O. They can be separated as much as possible. According to this, since the reflective surface 500 reflects the first light source light L1 from the separated first emission part 401b, the display position of the virtual image 502 is significantly far away from the reflective surface 500. A feeling can be given to the occupant. Therefore, a high decorative effect based on the display of the virtual image 502 on the reflecting surface 500 can be exhibited as a firm effect by the decorative ring 50.

  Further, according to the first embodiment, the first light source light L1 traveling forward from the first emission part 401b can be prevented from reaching the passenger by being blocked by the light shielding cap 202. According to this, it is possible to suppress a situation in which the reflected light of the first light source light L1 from the reflecting surface 500 is difficult to be visually recognized by the occupant due to the first light source light L1 traveling forward from the first emission part 401b. Therefore, the display of the virtual image 502 on the reflecting surface 500 is ensured, and the decoration effect by the decoration ring 50 can be enhanced.

  Further, according to the night normal display mode Mnn and the night sports display mode Mns of the first embodiment, the third light source light L3 is emitted from the third light emitting unit 440a behind the reflecting surface 500 in the third light source unit 44. The The third light source light L3 emitted in this way can be viewed by a front passenger as a local illumination decoration by transmitting and illuminating the first reflecting portion 500a facing forward in the reflecting surface. At this time, according to the second reflecting portion 500b inclined on the first emitting portion 401b side with respect to the first reflecting portion 500a, the third light source light L3 is more restricted in forward transmission than the first reflecting portion 500a. Meanwhile, the first light source light L1 is reflected forward. Therefore, the display of the three-dimensional virtual image 502 in the 2nd reflection part 500b adjacent to it with the local illumination decoration in the 1st reflection part 500a can also be visually recognized simultaneously by the front passenger | crew.

  On the other hand, according to the daytime display mode Md, the second light source unit 42 emits the second light source light L2 from the second light emitting unit 420a in front of the reflecting surface 500. The second light source light L2 emitted in this way is reflected and scattered by the diffuse illumination of both the first reflecting portion 500a and the second reflecting portion 500b in the reflecting surface 500. Therefore, the 1st reflection part 500a and the 2nd reflection part 500b which form a sense of perspective in the mutually close location can be visually recognized by the front passenger | crew as a decoration which provides three-dimensional glossiness.

  Therefore, according to these display modes Mnn, Mns, and Md, the control unit 80 displays the stereoscopic virtual image 502 close to the local illumination decoration and the three-dimensional glossy decoration greatly different from the display. Switch with, you can direct the appearance. Therefore, the decoration effect by the decoration ring 50 can be remarkably enhanced.

  Further, according to the first embodiment, the reflective surface 500 having a surface roughness smaller than that of the display surface 101 has a higher reflectance with respect to the first light source light L <b> 1 than that of the display surface 101. By adopting such a highly reflective reflective surface 500 together with the directional first light source light L1 along the display surface 101, a large difference in luminance between the reflective surface 500 and the display surface 101 can be secured, so the decorative ring 50 It is possible to enhance the decoration effect.

  Further, according to the first embodiment, in the surface region 101a between the first emitting portion 401b and the reflecting surface 500 in the display surface 101, the convex portion 90 protruding sharply toward the front is the first light source light L1. Are arranged at a pitch P smaller than the wavelength of. Here, the cross-sectional area of the contour portion where the refractive index difference occurs with the air in each protrusion 90 having a protrusion height H with an aspect ratio of 0.9 or more with respect to the arrangement pitch P is from the sharp top 90b to the display surface. As it goes to the 101 side, it gradually increases with a change rate as small as possible. According to this, since the reflectance of the first light source light L1 by each convex portion 90 can be reliably reduced and a large luminance difference between the reflective surface 500 and the display surface 101 can be secured, a high decorative effect by the decorative ring 50 is achieved. Can be demonstrated.

  Further, according to the first embodiment, in each convex portion 90 whose cross section protrudes in a circular sharp shape, the refractive index difference generated between the circular contour portion and air is substantially constant in the circumferential direction. Therefore, the situation where the reflectance of the first light source light L1 increases due to the change in the refractive index difference in the circumferential direction of the cross section can be suppressed. According to this, a large brightness difference of the reflective surface 500 can be ensured with respect to the display surface 101 having a low reflectance, so that a high decorative effect by the decorative ring 50 can be exhibited.

  Further, according to the first embodiment, since the surface area 101a occupied by each convex portion 90 in the display surface 101 is secured from the first emitting portion 401b to the reflecting surface 500, the first emitting portion 401b and The reflection of the first light source light L1 can be suppressed in the entire area between the reflection surfaces 500. According to this, the brightness difference of the reflective surface 500 is ensured with respect to the entire surface area 101a, and the high decorative effect by the decorative ring 50 can be exhibited in a wide range.

  In addition, according to the first embodiment, the indicator 102a that displays the vehicle information by being instructed by the pointer 20 is located in front of the surface region 101a in which the reflectance with respect to the first light source light L1 can be reduced by the respective convex portions 90. Is formed so as to be visible. According to this, the situation in which the indicator 102a becomes difficult to be visually recognized by the occupant due to the reflected light of the first light source light L1 from the surface region 101a entering the eye can be suppressed. Therefore, it is possible to increase a decoration effect by the decoration ring 50 by ensuring a large luminance difference between the reflection surface 500 and the display surface 101 without hindering the visibility of the indicator 102a for displaying vehicle information. Become.

  Further, according to the first embodiment, on the inner peripheral surface 600 that surrounds the decorative ring 50 in the hood 60, the first light source light L1 that has passed from the first emitting portion 401b to the outer peripheral side of the reflecting surface 500 is the surface region 101a. It becomes difficult to be reflected by the sharp convex part 90 similar to the above. According to this, it is possible to secure a large luminance difference between the inner peripheral surface 600 and the reflecting surface 500 and to enhance the decoration effect by the decoration ring 50.

(Second embodiment)
As shown in FIG. 11, the second embodiment of the present invention is a modification of the first embodiment. The first light source unit 2040 of the second embodiment is formed by combining a plurality of first light emitters 400 with the same number of optical fibers 2401, and one set is provided across the front and back of the display plate 10 at locations corresponding to the pointers 20. It has been. In each first light source unit 2040, the optical fiber 2401 is a wire having a circular cross section in which a high reflectance glass core is combined with a low reflectance glass clad and coated with a resin. It is arranged through. The optical fiber 2401 of each first light source unit 2040 has an incident part 2401a and a first emission part 2401b at predetermined locations around the rotation axis O of the corresponding pointer 20 respectively. Here, the first light source L1 from the light emitter 400 is incident on the incident portion 2401a facing the rear of the display panel 10 with respect to the first light emitter 400 associated in the same set. . Further, the first light source light L1 incident on the incident portion 2401a from the first emission portion 2401b disposed at a predetermined position around the rotation axis O in front of the display surface 101 and behind the corresponding translucent boss 201 is provided. Is emitted to the side. FIG. 11 shows the case of the night normal display mode Mnn in which the blue B first light source light L1 is emitted from the first emission part 2401b. The red R first light source light L1 is emitted from the first emission part 2401b. In the case of the night sports display mode Mns to be emitted, illustration is omitted.

  In this way, the first light source light L1 that is guided by the optical fiber 2401 of each first light source unit 2040 and is emitted laterally from the respective first emitting portions 2401b is applied to the display surface 101 of the corresponding decorative ring 50. A directivity toward the reflecting surface 500 along the surface is given. With this directivity, in the night normal display mode Mnn, as shown in FIG. 12, the virtual image 2502 of each first emitting portion 2401b emits in a blue B crystal tone behind the second reflecting portion 500b in the reflecting surface 500. Displayed and visible. In FIG. 12, only a part of the virtual images 2502 are denoted by reference numerals in order to improve the visibility. On the other hand, in the night sports display mode Mns, although not shown, the virtual image 2502 of each first emitting portion 2401b is lit and displayed in a red R crystal tone behind the second reflecting portion 500b in the reflecting surface 500. Is done. Therefore, according to such 2nd embodiment, the effect according to 1st embodiment can be exhibited.

(Third embodiment)
As shown in FIG. 13, the third embodiment of the present invention is a modification of the first embodiment. The first light source unit 3040 of the third embodiment is formed by combining a plurality of first light emitters 3400 with a retainer 3401, and one set is provided at a position corresponding to each pointer 20 in front of the display surface 101. In each first light source unit 3040, the retainer 3401 is formed in a stepped cylindrical shape with the rotation axis O as the center by using a non-transparent polypropylene resin or the like, and is disposed through the display board 10 in the front-rear direction. In each of the first light source units 3040, the first light emitter 3400 is configured by LED chips in which blue and red light emitting diodes are packaged to reduce the diffusion angle as much as possible in the third embodiment. Is retained. In each first light source unit 3040, the first light emitter 3400 emits light in a color according to energization at a plurality of locations around the rotation axis O. As a result, in each first light source unit 3040, the first light source light L1 is laterally emitted from the first emission part 3400a of the first light emitter 3400 disposed in front of the display surface 101 and behind the corresponding light shielding cap 202. Is emitted. FIG. 13 shows the case of the night normal display mode Mnn in which the blue B first light source light L1 is emitted from the first emission part 3400a. The red R first light source light L1 is emitted from the first emission part 3400a. In the case of the night sports display mode Mns to be emitted, illustration is omitted.

  Thus, the first light source 3400 of each first light source unit 3040 emits the first light source light L1 emitted from the respective first emission portions 3400a to the side along the display surface 101 of the corresponding decoration ring 50. Directivity toward 500 is given. With this directivity, in the night normal display mode Mnn, as shown in FIG. 14, the virtual image 3502 of each first emitting portion 3400a emits in a blue B crystal tone behind the second reflecting portion 500b in the reflecting surface 500. Displayed and visible. In FIG. 14, only some virtual images 3502 are denoted by reference numerals in order to improve the visibility. On the other hand, in the night sports display mode Mns, although not shown, the virtual image 3502 of each first emitting part 3400a is lit and displayed in red R crystal tone behind the second reflecting part 500b in the reflecting surface 500. Is done. Therefore, according to such 3rd embodiment, it becomes possible to exhibit the effect according to 1st embodiment.

(Fourth embodiment)
As shown in FIG. 15, the fourth embodiment of the present invention is a modification of the first embodiment. In the third embodiment, a plurality of convex portions 4090 (FIG. 15 shows only the surface region 101a) arranged in the surface region 101a of each display region 102 and the inner peripheral surface 600 of the hood 60 have a circular outline in a cross section. The bell shape is reduced at a rate of change that increases as the radius of the head increases toward the front. Thereby, each convex part 4090 protrudes in a sharp shape with a constant height H from the surface region 101a toward the front, and has a constant height H from the inner peripheral surface 600 toward the inner peripheral side. By projecting, a particularly low reflectance can be realized.

  About the structure of each convex part 4090, except the above point, it is the same as that of each convex part 90 of 1st embodiment. Therefore, according to such 4th embodiment, it becomes possible to exhibit the effect according to 1st embodiment.

(Other embodiments)
Although a plurality of embodiments of the present invention have been described above, the present invention is not construed as being limited to these embodiments, and various embodiments and combinations can be made without departing from the scope of the present invention. Can be applied.

  Specifically, in the first modification, light other than visible light of blue B and red R may be employed as the first light source light L1. Moreover, in the modification 2, you may employ | adopt light other than the visible light of white W as light source light L2, L3, L4, L5.

  In the modification 3, when the light switch 2 is operated to the vehicle width lamp on position or the headlamp on position, only one of the night normal display mode Mnn and the night sport display mode Mns may be executed. Moreover, in the modification 4, when the light switch 2 is operated to the vehicle width lamp on position or the headlamp on position, the mode is further switched to a display mode other than the night normal display mode Mnn and the night sports display mode Mns. Also good.

  In the fifth modification, at least one of the night normal display mode Mnn and the night sports display mode Mns is set as the “second mode”, the second light source light L2 is emitted from the second emission unit 420a, and the daytime display mode Md is set to “first”. As the mode, the first light source light L1 may be emitted from the first emission parts 401b, 2401b, 3400a. Further, in the sixth modification, one of the night normal display mode Mnn and the night sports display mode Mns is set as the “first mode”, and the first light source light L1 is emitted from the first emission portions 401b, 2401b, 3400a, and these display modes are displayed. The other of Mnn and Mns may be set as the “second mode”, and the second light source light L2 may be emitted from the second emission unit 420a.

  In the modification example 7, the emission of the third light source light L3 from the third emission unit 440a may be executed in the daytime display mode Md. In this case, the emission of the third light source light L3 from the third emission unit 440a may be stopped in at least one of the night normal display mode Mnn and the night sport display mode Mns.

  In the modification 8, the switching from the daytime display mode Md to the night normal display mode Mnn or the night sports display mode Mns and vice versa is performed not by the operation position of the light switch 2, but by brightness of the illuminance sensor of the vehicle, for example. It may be executed according to. Further, in the modified example 9, the switching from the night normal display mode Mnn and the reverse switching are executed according to the control state of the control circuit that controls the vehicle, for example, instead of the operation position of the travel switch 3. May be.

  In the tenth modification, the first emitting portions 401b, 2401b, and 3400a may be arranged at positions deviated from the rotation axis O. Further, in the modified example 11, instead of the light shielding cap 202 of the pointer 20, the “light shielding member” disposed in front of the display surface 101 may block light traveling forward from the first light emitting portions 401 b, 2401 b, 3400 a.

  As shown in FIG. 16, in the modified example 12 (the figure is a modified example of the first embodiment), the third light source unit 44 is not provided, and transmission illumination of the first reflecting portion 500a is executed by the third light source light L3. It does not have to be. Moreover, as shown in FIG. 17, in the modification 13 (the figure is a modification of 1st embodiment), the 1st reflection part 500a does not need to be provided, In this case, the modification 12 can also be applied. Moreover, in the modification 14, you may provide substantially parallel with respect to the display surface 101, without making the 1st reflection part 500a among the reflective surfaces 500 incline.

  In the modified example 15, it is not necessary to arrange the convex portions 90 and 4090 in a part of the surface region 101a secured from the first emitting portion 401b to the reflecting surface 500. Moreover, in the modification 16, you may arrange | position the convex parts 90 and 4090 in the whole region of the display surface 101 including the surface area | region 101a.

  In the modified example 17, it is not necessary to form the convex portions 90 and 4090 in the surface region 101a. In this case, at least the surface region 101a of the display surface 101 may or may not be provided with a low reflection layer that reduces forward reflection by the function of absorbing the first light source light L1, for example. In the modified example 18, the convex portions 90 and 4090 need not be arranged on the inner peripheral surface 600 of the hood 60. In this case, the inner circumferential surface 600 may or may not be provided with a low reflection layer that reduces forward reflection by the function of absorbing the first light source light L1, for example.

  In the modification 19, the aspect ratio of the convex portions 90 and 4090 may be less than 0.9 as long as the reflectance of the surface region 101a and the inner peripheral surface 600 is lower than that of the reflective surface 500, for example, 1% or less. . Moreover, in the modified example 20, you may form the convex parts 90 and 4090 in a two-dimensional close-packed grid | lattice form.

  As shown in FIG. 18, in Modification 21 (the modification is a modification of the first embodiment), the tent-shaped protrusion 90 reduced at a change rate that decreases as the radius of the circular contour in the cross section decreases toward the front. , 4090 may be employed. Moreover, in the modification 22, you may employ | adopt the convex parts 90 and 4090 whose cross section is a polygon.

  In the modified example 23, by adopting a prism instead of the diffuser plate 421, the second light source light L2 from each second emission part 420a is diffused by the prism, and the reflection surface 500 of each decoration ring 50 is diffused. May be. Moreover, in the modification 24, you may form the cover 70 with a colorless and transparent glass or translucent resin.

DESCRIPTION OF SYMBOLS 1 Display apparatus for vehicles, 10 Display board, 20 Pointer, 40, 2040, 3040 First light source unit, 42 Second light source unit, 44 Third light source unit, 50 Decoration ring, 60 Hood, 80 Control unit, 90, 4090 Convex Part, 101 display surface, 101a surface area, 102a indicator, 202 light-shielding cap, 400, 3400 first light emitter, 401 light guide, 401b, 2401b, 3400a first light emission part, 420 second light emitter, 420a second light emission Part, 421 diffuser plate, 440 third light emitter, 440a third emitting part, 500 reflecting surface, 500a first reflecting part, 500b second reflecting part, 502, 2502, 3502 virtual image, 600 inner peripheral surface, 2401 optical fiber, H protrusion height, L1 first light source light, L2 second light source light, L3 third light source light, Md daytime Display mode, Mnn nighttime normal display mode, Mns nighttime sports display mode, O axis of rotation, P array pitch

Claims (10)

A display board (10) for displaying vehicle information so as to be visible from the front of the display surface (101);
A decorative member (50) that is disposed in front of the display surface and decorates the display board, the decorative member having a reflective surface (500);
A first emission part (401b, 2401b, 3400a) is provided in front of the display surface, the first light source light (L1) is reflected forward by the reflection surface, and a virtual image (502, 2502 3502) in order to be visible from the front, the first light source unit (40, 2040) that emits the first light source light directed from the first emission part toward the reflection surface with directivity along the display surface. 3040) and
The second emitting portion (420a) is provided in front of the reflecting surface, and the reflecting surface is diffusely illuminated in order to reflect and scatter the second light source light (L2) forward by the reflecting surface. A second light source unit (42) for emitting a second light source light from the second emission part;
A control unit that switches and controls a first mode (Mnn, Mns) for emitting the first light source light from the first emission part and a second mode (Md) for emitting the second light source light from the second emission part ( 80). A vehicle display device comprising: A pointer (20) disposed in front of the display surface and rotating about a rotation axis (O);
The first light source unit forms the first emission part around the rotation axis,
The vehicle display device according to claim 1, wherein the decorative member forms the reflection surface along a circumference centered on the rotation axis.   The vehicle display device according to claim 1, further comprising: a light shielding member that blocks the first light source light traveling forward from the first emission unit. A third light source unit having a third emission part (440a) behind the reflection surface and transmitting and illuminating the reflection surface forward with the third light source light (L3) emitted from the third emission part. (44)
The reflection surface has a first reflection part (500a) facing forward, and a second reflection part (500b) inclined on the first emission part side with respect to the first reflection part,
In the first mode in which the control unit emits the first light source light from the first emission part and emits the third light source light from the third emission part, the first reflection part is configured to emit the third emission light. The third light source light incident from the first part is transmitted forward, and the second reflective part transmits the third light source light incident from the third light output part forward from the first reflective part. And the first light source light incident from the first emission part is reflected forward,
In the second mode in which the control unit emits the second light source light from the second emitting part, both the first reflecting part and the second reflecting part are incident on the second emitting part, respectively. The vehicle display device according to claim 1, wherein the two light source lights are reflected forward.   The vehicle display device according to claim 1, wherein a surface roughness of the reflecting surface is smaller than a surface roughness of the display surface. A plurality of convex portions (90, 4090) are arranged on the display surface so as to protrude sharply from a surface region (101a) between the first emitting portion and the reflecting surface,
Each said convex part has protrusion height (H) which makes the aspect ratio 0.9 or more with respect to arrangement pitch (P) shorter than the wavelength of said 1st light source light, It is characterized by the above-mentioned. Vehicle display device.   The vehicle display device according to claim 6, wherein each of the convex portions protrudes in a sharp shape with a circular cross section.   The vehicle display device according to claim 6 or 7, wherein the surface area occupied by each of the convex portions of the display surface is secured from the first emitting portion to the reflective surface. . A pointer (20) disposed in front of the display surface and rotating about a rotation axis (O);
The decorative member forms the reflective surface along a circumference around the rotation axis,
The said display board forms the parameter | index (102a) which displays the said vehicle information by being instruct | indicated by the said pointer so that it can visually recognize from the front in the said surface area | region. The vehicle display device according to the item.   The vehicle according to any one of claims 6 to 9, further comprising a hood (60) in which a plurality of the convex portions are arranged so as to protrude from an inner peripheral surface (600) surrounding the decorative member. Display device.

Images