JP2002211271A - Display device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device for a vehicle capable of maintaining the visibility of a virtual image of an image displayed on a combiner by preventing the virtual image from having a low contrast caused by the influence of external light casted on the combiner incident into the vehicle from the outside. SOLUTION: The combiner 5 is installed upright at a recess 1b provided in a dash board 1 located in front of an eye point I, and an image beam of an inverted display image emitted from a display device 3 inside the dash board 1 and having passed an opening 1c in the dash board 1 are reflected by the combiner 5 toward the eye point I, wherein the recess 1b in the dash board 1 is formed at its upper face 1a and the combiner 5 is arranged upright ahead of the opening 1c formed within the recess 1b, and thereby such an arrangement is established that the combiner is located outside the forward view field of the vehicle viewed from the eye point I.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device for a vehicle which allows a display image of a light emitting display source to be visually recognized as a virtual image on a combiner provided on a dashboard.

[0002]

2. Description of the Related Art A virtual image of a display image including auxiliary information on driving is generated by reflecting image light of a display image by a light emitting display source housed in a dashboard by a combiner and guiding the image light to a driver's eye point. In a vehicle display device to be visually recognized by a driver, the combiner itself is formed of a transparent member in order to reduce the amount of line-of-sight movement when moving a line of sight directed forward from an eye point of the vehicle to the combiner. The combiner is arranged on the front view of the vehicle, thereby ensuring the front view of the vehicle through the combiner.

[0003]

Therefore, behind the combiner, there is a scene in front of the vehicle via the windshield. Therefore, the light emitting display source is not used during the daytime outside the dark at night. External light, which is overwhelmingly higher in light intensity than the image light of the display image guided to the combiner from above, is illuminated behind the combiner through the windshield, and the virtual image and the virtual image of the display image visually recognized on the combiner There is no difference in contrast with the peripheral portion, and the visibility is reduced to some extent.

In view of the above circumstances, the present invention provides a virtual image display using a combiner not only to display auxiliary information on driving but also to increase the degree of freedom of information display in a conventional combination meter. In consideration of the current situation where use is being considered, the conventional idea of securing the front view of the vehicle through a combiner has been changed.

An object of the present invention is to prevent the contrast of a virtual image of a display image visually recognized on a combiner from being reduced due to the influence of external light which enters the inside of the vehicle from the outside of the vehicle and irradiates the combiner. It is an object of the present invention to provide a vehicular display device capable of preventing the above problem and maintaining good visibility of a virtual image of a display image on a combiner.

[0006]

According to a first aspect of the present invention, there is provided a vehicle display device according to the first aspect of the present invention, comprising: The image light of the display image by the light emitting display source emitted from the light emitting display source in the dashboard and passed through the opening on the dashboard is directed to the eye point. A vehicle display device having a combiner that reflects light
A concave portion is formed on the upper surface of the dashboard, and the combiner is erected from a concave portion in front of the opening formed in the concave portion so as to be out of the front view of the vehicle visually recognized from the eye point. Wherein the combiner is arranged to be located at

According to a second aspect of the present invention, there is provided the vehicle display device according to the first aspect, wherein the dashboard portion on the eye point side of the opening is provided on the dashboard portion. An instrument for displaying a state of the vehicle is arranged, and the combiner is configured such that an outline of the combiner visually recognized from the eye point is viewed from the eye point by irradiation of image light of the display image. It is assumed that the virtual image and the real image of the instrument are formed by an outer shape substantially surrounding the virtual image.

Further, according to a third aspect of the present invention, there is provided a vehicle display device according to the first or second aspect, wherein the instruments are spaced apart in a vehicle width direction of the vehicle. And a plurality of the combiners are provided.
An image light of the display image from the light emitting display source is arranged to be reflected toward the eye point in a combiner portion located between two adjacent meters.

According to a fourth aspect of the present invention, there is provided the vehicle display device according to the first, second, or third aspect, wherein the eye point side is located closer to the eye point than the dashboard. A steering wheel of a vehicle is disposed, and the combiner is formed in an outer shape having a regular arc-shaped upper edge having a different curvature depending on a parallax due to a front-back position difference between the combiner and the steering wheel from the eye point. It was assumed that.

According to the vehicle display device of the present invention, the opening through which the image light of the display image from the light emitting display source emitted from the light emitting display source in the dashboard and heading toward the combiner passes is formed by the dash. It is formed in a recess formed on the upper surface of the board, and a combiner that can be visually recognized from the eye point is erected from the recess portion in front of this opening, so that in view from the eye point, The inner surface of the recess is located behind the combiner, so that even if the combiner is formed of a transparent member, the inner surface of the recess located behind it blocks the view ahead of the vehicle from the eye point.

According to the vehicle display device of the present invention described in claim 2, in the vehicle display device of the present invention described in claim 1, the outline of the combiner is the same as that of the display image from the light emitting display source. The virtual image of the display image on the combiner visually recognized from the eye point by the irradiation of the image light, and the real image visually recognized from the eye point of the instrument disposed on the dashboard portion closer to the eye point than the opening substantially surround the virtual image. Thus, the virtual image of the display image and the real image of the instrument are visually recognized from the eye point as a combination display by a single instrument unit.

Further, according to the vehicle display device of the present invention described in claim 3, in the vehicle display device of the present invention described in claim 1 or 2, the two-dimensional display device is provided with a space in the vehicle width direction. Since the image light of the display image from the light emitting display source is arranged to be reflected toward the eye point in the combiner portion located between the two instruments, the display image on the combiner visually recognized from the eye point is arranged. The virtual image and the real image of the instrument are arranged side by side in the vehicle width direction.

According to the vehicle display device of the present invention described in claim 4, in the vehicle display device of the present invention described in claim 1, 2, or 3, the contour of the combiner is provided on the wheel portion of the steering wheel. It is hidden and cannot be seen from the eye point.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a display device for a vehicle according to the present invention will be described below with reference to the drawings.

FIG. 1 is a cross-sectional view showing a basic schematic configuration of a vehicle display device according to one embodiment of the present invention. The vehicle display device of this embodiment is housed inside a dashboard 1 of the vehicle. Display device 3, a combiner 5 disposed on the dashboard 1 and reflecting image light of a display image from the display device 3 toward the eye point I of the driver of the vehicle, and housed inside the dashboard 1. An optical path changing member 7 is disposed between the display device 3 and the combiner 5 and an analog meter unit 9 is disposed on the dashboard 1 closer to the eye point I than the combiner 5.

The dashboard 1 is colored in a dark color to prevent reflection on a windshield (not shown).

The analog meter unit 9 (corresponding to an instrument) is provided with a vehicle width at a tip end located on the eye point I side of the dashboard 1 as shown in an enlarged perspective view of the vehicle display device in FIG. A semicircular recess 1b is formed in the upper surface 1a of the dashboard 1 so as to surround the two analog meter units 9, 9 at intervals in the direction.

The concave portion 1b is located between the two analog meter units 9 and 9 in the vehicle width direction and forward of the two analog meter units 9 and 9 in the longitudinal direction of the vehicle. An opening 1c for passing image light from the display device 3 in the dashboard 1 is formed.

The display device 3 (corresponding to a light emitting display source)
In the present embodiment, is composed of a liquid crystal display with a backlight, and is directed upward of the vehicle by a polarizing plate 3a (corresponding to a third polarizing plate) whose polarization direction is the vehicle width direction, as shown in FIG. A display surface is formed.

In the display device 3, an image of auxiliary information necessary for driving, such as the traveling direction information and traveling speed of the navigation device, is inverted by a liquid crystal cell enclosed therein (FIG. 1). (Not shown, corresponding to a display image), a light-emitting display in which the upper side of the original normal rotation image is arranged on the rear side of the vehicle and the lower side of the normal rotation image is arranged on the front side of the vehicle, and a light-emitting display is formed to form a display surface. From this, the image light of the inverted display image is polarized and emitted in the vehicle width direction.

The image light of the inverted display image displayed on the display device 3 passes through the optical path changing member 7, and
The light passes through the opening 1c of the dashboard 1 and irradiates onto the combiner 5 on the dashboard 1, and by this irradiation, the inverted display image displayed on the display device 3 is turned upside down and the normal image is turned upside down. The virtual image S is visually recognized from the eye point I.

The combiner 5 is formed by bending a smoke-treated dark-colored colored resin into a regular arc shape by bending a strip-shaped flat plate that becomes narrower toward both sides in the longitudinal direction, as shown in FIG. The recess 1b of the dashboard 1
In a direction in which both ends in the longitudinal direction are located rearward, the center is located forward and concave toward the eye point I, and the upper end is formed as shown in FIG. It is inclined from the concave portion 1b so that the side is located rearward and the lower end is located forward.

The combiner 5 is provided on an optical path of an external light portion of the external light that enters the inside of the vehicle from the outside to the display device 3 through the opening 1 c of the dashboard 1.
The opening 1c can be surrounded from the front of the opening 1c to both sides in the vehicle width direction so as to be located at least over the entire range in the vehicle width direction, and the two analog meter units 9, 9 are also provided inside the opening 1c. It is formed with a longitudinal dimension that can be positioned.

The combiner 5 has an angle range θ1 shown in FIG. 1 out of the entire angle range θ of external light which enters the inside of the vehicle from the outside and passes through the opening 1c of the dashboard 1 and travels toward the display device 3. As shown in the figure, it is formed in a width direction dimension orthogonal to the longitudinal direction such that it is located on the optical path of the external light portion from the front of the vehicle.

The combiner 5 thus formed is
As shown in FIG. 1, a portion of the combiner 5 erected from the recess 1b of the dashboard 1 near the center in the longitudinal direction is
It is arranged so as to be located immediately before the opening 1c of the dashboard 1 in the longitudinal direction of the vehicle.

When the combiner 5 is viewed from the eye point I, as shown in the enlarged front view of the vehicle display device in FIG. 3, a portion of the upper edge 5a of the combiner 5 near the center in the vehicle width direction is formed. The steering wheel 11 disposed in front of the combiner 5 is overlapped with the steering wheel 11 in the front-rear direction and is concealed. Is formed.

Then, as shown in FIG.
On the inner peripheral surface (corresponding to one surface) located on the eye point I side, a polarizing plate 5b having a polarizing direction different from that of the polarizing plate 3a of the display device 3 by 90 degrees and having the vehicle height direction as the polarizing direction.
(Corresponding to the polarizing plate in the claims), and both the polarization of the light by the polarizing plate 5b and the smoke processing performed on the combiner 5 itself cause the combiner 5 to reduce the light passing therethrough. Exhibits the effect of dimming.

In the combiner 5 having such a configuration, the area in which the image light of the inverted display image is irradiated from the display device 3 and the virtual image S of the normal rotation image is visually recognized from the eye point I is provided by two analog meters. Unit 9, 9
Between the eye point I and the central portion in the vehicle width direction, in other words, the combiner 5
In the longitudinal direction.

As described above, the combiner 5 has a regular arc shape in the vehicle width direction, and is inclined and arranged in the vehicle height direction such that the upper edge 5a is closer to the eye point I than the lower end. Therefore, the optical path length of the inverted display image from the light emitting device 3 to the eye point I via the combiner 5 is shorter on the upper edge 5a side of the combiner 5 than on the lower end side, and the length of the combiner 5 in the vehicle width direction. The portions near both ends are shorter than the portions near the center.

Therefore, for example, as shown in the explanatory view of FIG. 4, a horizontally long rectangular inverted display image whose longitudinal direction is the vehicle width direction is displayed on the display device 3 and the image light is transmitted to the optical path changing member 7. If the light is applied directly to the central portion in the longitudinal direction of the combiner 5 visually recognized from the eye point I through the space between the two analog meter units 9 and 9 without passing through the analog meter unit 9, the reflected light is visually recognized from the eye point I. The shape of the virtual image of the normal image obtained by inverting the inverted display image upside down and upside down as shown in the explanatory diagram in FIG.
The upper edge 5a side of the combiner 5 is narrower in width than the lower end side, and the portion near the both ends of the combiner 5 in the vehicle width direction is distorted in a substantially sector shape such that it is shifted downward from the portion near the center.

Since the combiner 5 is curved in the shape of a perfect arc in the vehicle width direction, when the inverted display image is reflected by the combiner 5, the inverted display image before the reflection is compared with the reflected display image before the reflection. The rolled image is enlarged in the vehicle width direction.

As shown in the sectional view of FIG. 6, the optical path changing member 7 is provided with a boundary surface 7c inside by bonding the inclined surfaces of two prisms 7a and 7b having triangular end surfaces and different refractive indexes from each other. As shown in a perspective view in FIG. 7, a rectangular parallelepiped having a trapezoidal cross section is curved in a fan shape in plan view.

The light path changing member 7 is formed by one side surface of the prism 7b with the short diameter side curved surface of the light path changing member 7 formed by one side surface of the prism 7a facing the rear side of the vehicle. 7, with the long diameter side curved surface facing the front side of the vehicle, and the remaining two side surfaces, as shown in FIG. 1, on the opening 1c side of the dashboard 1 and on the polarizing plate 3a side forming the display surface of the display device 3 It is arranged for each.

Therefore, for example, a horizontally long rectangular inverted display image as shown in FIG. 4 is displayed on the display device 3, and the image light enters the optical path changing member 7 from the side surface facing the display device 3. And the opening 1 of the dashboard 1
As shown in the explanatory view of FIG. 8, the image of the image light emitted from the other side surface of the optical path changing member 7 facing c has a smaller width on the rear side in the front-rear direction of the vehicle than on the front side, and Therefore, the vehicle is distorted in a substantially fan shape such that the portions near both ends in the vehicle width direction are shifted downward from the portions near the center.

The optical path changing member 7 thus configured is
Of the external light from the direction of the angle range θ shown in FIG. 1 that enters the interior of the vehicle from the outside and passes through the combiner 5 and the opening 1c of the dashboard 1, the angle range θ1 (the light path is displayed by the light path changing member so that the light path is illuminated (Corresponding to the remaining part of the range in the vehicle height direction which is not changed so as to be deviated from the light source) while being refracted according to the difference in the refractive index between each prism 7a, 7b and air. And acts to reach the polarizing plate 3a of the display device 3.

On the other hand, regarding the remaining external light component from the direction of the angle range θ2 shown in FIG.
The inside of the prism 7a located on the c side is transmitted so as to reach the boundary surface 7c at an angle exceeding the critical angle of the prism 7a, and at this boundary surface 7c, the prism 7a forming the flat side surface of the optical path changing member 7 Is internally reflected toward one surface of the display device 3 so as not to reach the prism 7b to the polarizing plate 3a of the display device 3.

On the other hand, the image light of the inverted display image emitted from the display device 3 is transmitted through the inside of the prisms 7b to 7a and passes between the two analog meter units 9 and 9 to obtain the eye point I. This acts so as to reach a portion closer to the center in the longitudinal direction of the combiner 5, which is visually recognized directly from.

In the vehicle display device of the present embodiment, as shown in FIGS. 6 and 7, the polarizing plate of the combiner 5 is provided on one side of the optical path changing member 7 facing the opening 1c side of the dashboard 1. A polarizing plate 7d (corresponding to a second polarizing plate) whose polarization direction coincides with that of 5b and whose polarization direction is the vehicle height direction is coated.

Next, the operation (operation) of the display device for a vehicle of the present embodiment configured as described above will be described.

When an inverted display image such as auxiliary information is displayed on the display device 3, the image light enters the optical path changing member 7 from the side surface facing the display device 3, passes through the inside, and passes through the dashboard 1. Is emitted from the other side surface of the optical path changing member 7 facing the opening 1c of the combiner 5 and illuminates a portion closer to the center in the longitudinal direction of the combiner 5, which is visually recognized directly from the eye point I between the two analog meter units 9, 9. Is done.

Up to this point, the inverted display image displayed on the display device 3 is first polarized in the vehicle width direction when passing through the polarizing plate 3a, and then is horizontally elongated as shown in FIG. From the optical path changing member 7 such that the optical path changing member 7 changes into a substantially sector shape as shown in FIG.
When the light is emitted toward the opening 1c of the dashboard 1, the light passes through the polarizing plate 7d, which is coated on the curved surface on the minor diameter side of the optical path changing member 7 and has the same polarization direction as the polarizing plate 3a.

The inverted display image, which is polarized in the vehicle width direction by the polarizing plate 3a and is subjected to a distortion action from the optical path changing member 7 and is applied to a portion closer to the center in the longitudinal direction of the combiner 5, is Since the polarization direction is different, the light cannot pass through the polarizing plate 5b coated on the inner peripheral surface and having the vehicle height direction as the polarization direction, so that the light is reflected toward the eye point I by the inner peripheral surface of the combiner 5. Will be done.

When the light is reflected toward the eye point I at the inner peripheral surface portion near the center in the longitudinal direction of the combiner 5, a distortion action as shown in FIG.
The inverted display image received from is a normal image that is turned upside down and upside down, and has a distorting effect such as changing from a horizontally long rectangular shape as shown in FIG. 4 to a substantially fan shape as shown in FIG. To receive from.

Therefore, the image obtained by inverting the substantially sector shape shown in FIG. 8 from front to back and upside down is subjected to the distorting action from the combiner 5 such that it changes from a horizontally long rectangular shape as shown in FIG. 4 to a substantially sector shape as shown in FIG. Of the distortion effect received from the optical path changing member 7, the vehicle height direction component of the distortion effect received from the combiner 5 cancels the inverted display image displayed on the display device 3. The front-back and upside-down inverted images have a shape that is enlarged only in the vehicle width direction with respect to the inverted display image, as shown in the explanatory diagram of FIG. Will be.

On the other hand, of the external light incident from the outside of the vehicle to the inside, the external light component passing through the opening 1c of the dashboard 1 and traveling toward the optical path changing member 7 to the display device 3 passes through the combiner 5 as shown in FIG. The external light component from the direction of the angle range θ1 and the angle range θ in FIG.
There are external light components from two directions.

Of these, the external light component passing through the combiner 5 from the direction of the angle range θ1 in FIG. 1 is polarized in the vehicle height direction by the polarizing plate 5b when passing through the combiner 5,
The light passes through the opening 1c of the dashboard 1 and reaches the polarizing plate 7d of the optical path changing member 7. However, since the polarizing plate 7d has a polarization direction different from that of the polarizing plate 5b, the light passes through the combiner 5 and passes through the optical path changing member. The external light component that has reached 7
Since d cannot be transmitted, the light is blocked here and does not go to the display device 3 side.

The external light component that does not pass through the combiner 5 from the direction of the angle range θ2 in FIG. After the optical path changing member 7
Of the prism 7a, but reaches the boundary 7c with the prism 7b at an angle exceeding the critical angle of the prism 7a. Never go to

Thus, the display device 3 is prevented from irradiating the display device 3 with external light from the outside of the vehicle, thereby preventing the inverted display image displayed by the light emission of the display device 3 from washing out.

Further, since the combiner 5 itself is formed of the smoked dark colored resin, the transmitted light is also attenuated by the combiner 5 itself. It plays a role in prevention.

Further, the combiner 5 is connected to the dashboard 1
Concave portion 1b so as to be substantially concentric with the inner peripheral surface of concave portion 1b.
The inner peripheral surface of the concave portion 1b is disposed behind the combiner 5 viewed from the eye point I so that the combiner 5 can be recognized as a dark color similar to that of the dashboard 1. As a result, the contrast difference between the inverted display image portion and the background portion of the image light applied to the inner peripheral surface of the combiner 5 is reduced by the external light irradiation from behind the combiner 5. As a result, the visibility of the virtual image S of the normal rotation image does not decrease.

That is, in the vehicle display device of the present embodiment,
Washout and Combiner 5 on Display Device 3
Both of the above washouts are prevented.

Further, in the vehicle display device of the present embodiment,
Visually from the eye point I, in a state where the visual recognition area of the virtual image S of the normal rotation image of the combiner 5 is arranged between the two analog meter units 9, 9, the real image of these two analog meter units 9, 9 and Virtual image S of normal rotation image
Is substantially surrounded by the upper edge 5a of the combiner 5, and in reality, these constituted by the individual analog meter units 9, 9 and the combiner 5 are visually recognized as if they were a single combination meter unit. The bodily sensation will be brought out.

Moreover, the combiner 5 is connected to the dashboard 1
Is formed upright from the concave portion 1b of the upper surface 1a of the vehicle. Therefore, by configuring the combiner 5 at a height corresponding to the depth of the concave portion 1b, even if the combiner 5 itself is not transparent, the vehicle from the eye point I It can be configured so as not to obstruct the external front view.

Further, when viewed from the eye point I, the upper edge 5a of the combiner 5 overlaps the front and rear of the steering wheel 11 so that the upper edge 5a of the combiner 5 is not directly visible from the eye point I. In addition to the visual effect of a single combination meter unit as described above, the upper edge 5a of the combiner 5 can be hidden to prevent a visual discomfort.

In the vehicle display device according to the present embodiment, the visual recognition area of the virtual image S of the normal rotation image of the combiner 5 is disposed between the two analog meter units 9 and 9 from the viewpoint of the eye point I. Therefore, the depth of the concave portion 1b of the dashboard 1 is increased or the depth of the combiner 5 is increased as compared with the case where the visible region of the virtual image S of the normal rotation image of the combiner 5 is arranged above or below the analog meter unit 9. The combiner 5 can be disposed outside the front view of the vehicle while ensuring a wide front view of the vehicle in the vehicle height direction without having to increase the size in the vehicle height direction.

According to the present invention, the combiner 5 is erected from the recess 1b of the dashboard 1 at a height corresponding to the depth of the combiner 5 so as not to obstruct the front view outside the vehicle from the eye point I. As long as the combiner 5 can be configured, the present invention can also be applied to a vehicle display device using a transparent combiner that does not perform external light reduction processing by smoke processing or polarizing plate coating.

The combiner 5 does not need to be curved in the shape of a perfect arc in the entire vehicle width direction. The optical path changing member 7 imparts an image distortion effect to the area of the combiner 5 where the inverted display image is irradiated. The content can be appropriately changed or omitted depending on the relationship between the shape and the distortion effect generated according to the shape.

Further, the display device 3 is not limited to a device in which image light of a display image is subjected to a polarization action, such as a liquid crystal display with a backlight described in the present embodiment.
For example, a self-luminous device such as an FE (field emission) display, a fluorescent display tube, and an EL (electroluminescence) display may be used.

[0059]

As described above, according to the vehicle display device of the first aspect of the present invention, the vehicle can be visually recognized from the dashboard point of the vehicle located in front of the eye point in the vehicle. The image light of the display image emitted by the light emitting display source emitted from the light emitting display source in the dashboard and passing through the opening on the dashboard is reflected toward the eye point. In the vehicular display device having the combiner, a concave portion is formed on the upper surface of the dashboard, and the combiner is erected from a concave portion in front of the opening formed in the concave portion, so that the combiner is positioned from the eye point. The combiner is arranged so as to be located outside the field of view of the vehicle that has been visually recognized.

For this reason, even if the combiner is formed of a transparent member, the field of view ahead of the vehicle from the eye point is blocked by the inner surface of the concave portion located behind the combiner, so that the image of the display image of the light emitting display source is obtained. The virtual image of the display image on the combiner to be irradiated with light is made visible from the eye point with a contrast difference between at least the inner surface of the concave portion, and the influence of external light entering the vehicle from outside the vehicle. It is possible to prevent the contrast of the virtual image of the display image viewed on the combiner from being reduced, and to maintain the visibility of the virtual image of the display image on the combiner in a favorable state.

Further, according to the vehicle display device of the present invention described in claim 2, in the vehicle display device of the present invention described in claim 1, the dashboard portion on the eye point side of the opening is provided. An instrument for displaying a state of the vehicle is provided, and the contour of the combiner, which is visually recognized from the eye point, is visually recognized from the eye point by irradiating image light of the display image. The configuration is such that the virtual image of the image and the real image of the meter substantially surround the outer shape.

Therefore, in the vehicle display device according to the first aspect of the present invention, the virtual image of the display image of the light emitting display source and the real image of the instrument are combined by a single instrument unit from the eye point by the contour of the combiner. In a vehicle display device in which a display by a light emitting display source and a display by an instrument are separately performed so as to be visually recognized as a display, the effect of the visual unity and the reduction of visual discomfort caused by the presence of the combiner are provided. Can be achieved by the combiner itself.

Further, according to the vehicle display device of the present invention described in claim 3, in the vehicle display device of the present invention described in claim 1 or 2, the instrument is provided with an interval in the vehicle width direction of the vehicle. And the combiner reflects image light of the display image from the light emitting display source toward the eye point at a combiner portion located between two adjacent instruments. The configuration was arranged.

For this reason, in the vehicle display device according to the first or second aspect of the present invention, the virtual image of the display image on the combiner visually recognized from the eye point and the real image of the instrument are:
By being arranged side by side in the vehicle width direction,
In order to place the area on the combiner for visually recognizing the virtual image of the display image above the instrument, the dimensions of the combiner in the vehicle height direction must be more than the irradiation dimensions of the display image in the vehicle height direction on the combiner. In order to make the area on the combiner that allows the virtual image to be visually recognized larger, the depth of the concave portion of the dashboard in the vehicle height direction is adjusted by illuminating the display image in the vehicle height direction on the combiner. Even if you do not make it unnecessarily large for the dimensions,
The virtual image of the display image of the light-emitting display source and the real image of the instrument visually recognized from the eye point are located outside the front view of the vehicle from the eye point, and thereby the virtual image of the display image of the light-emitting display source on the combiner. Is located outside the front view of the vehicle from the eye point, it is possible to secure a wide front view of the vehicle in the vehicle height direction.

Further, according to the vehicle display device of the present invention described in claim 4, in the vehicle display device of the present invention described in claim 1, 2, or 3, the eye point side of the dashboard with respect to the eye point. A steering wheel of the vehicle is disposed, and the combiner has a regular arc-shaped upper edge having a different curvature depending on a parallax due to a front-back position difference from the eye point between the combiner and the steering wheel. It was set as the structure formed with.

For this reason, in the vehicle display device according to the present invention, the outline of the combiner is hidden by the wheel portion of the steering wheel so that the outline of the combiner cannot be seen from the eye point. Can be alleviated by the presence of the steering wheel portion.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a basic schematic configuration of a vehicle display device according to an embodiment of the present invention.

FIG. 2 is an enlarged perspective view of the vehicle display device of FIG.

FIG. 3 is a front view of the vehicle display device of FIG. 1;

FIG. 4 is an explanatory diagram showing an example of a reverse display image displayed on the display device of FIG. 1;

FIG. 5 is an explanatory diagram of a distortion effect exerted on an image by the combiner of FIG. 1;

FIG. 6 is a sectional view of the optical path changing member of FIG. 1;

FIG. 7 is a perspective view of the optical path changing member of FIG. 1;

FIG. 8 is an explanatory diagram of a distortion effect exerted on an image by the optical path changing member of FIG. 1;

FIG. 9 is an explanatory diagram showing an example of a normal rotation image visually recognized from an eye point as a result of canceling a distortion effect by the optical path changing member and the combiner of FIG. 1;

[Explanation of symbols]

 Reference Signs List 1 dashboard 1a dashboard upper surface 1b recess 1c opening 3 display device (light emitting display source) 5 combiner 5a combiner upper edge 9 analog meter unit (instrument) 11 steering wheel I eye point

Continued on the front page (72) Inventor Tetsuya Sugiyama 1500 Onjuku, Susono-shi, Shizuoka Yazaki Sogyo Co., Ltd. F-term (reference) 3D044 BA21 BA22 BA24 BA27 BB01 BC02 BC13 BC25 BC28 BD01

Claims (4)

[Claims] 1. A vehicle which is erected from a dashboard position of a vehicle located in front of an eye point in a vehicle so as to be visible from the eye point, emitted from a light emitting display source in the dashboard, and In a vehicle display device having a combiner for reflecting image light of a display image by the light emitting display source passing through an opening on a dashboard toward the eye point, a concave portion is formed on an upper surface of the dashboard. The combiner is arranged so as to be located outside the front view of the vehicle viewed from the eye point by erection of the combiner from a concave portion in front of the opening formed in the concave portion. A display device for a vehicle, characterized in that: 2. An instrument for displaying a state of the vehicle is arranged on a dashboard portion on the eye point side of the opening, and the combiner is configured such that an outline of the combiner visually recognized from the eye point is provided. 2. The display device for a vehicle according to claim 1, wherein the display device is formed by an outer shape substantially surrounding a virtual image of the display image visually recognized from the eye point by irradiation of image light of the display image and a real image of the meter. 3. A plurality of the gauges are provided at intervals in a vehicle width direction of the vehicle, and the combiner is provided at a combiner portion located between two adjacent gauges from the light emitting display source. The vehicle display device according to claim 2, wherein the display device is arranged to reflect image light of a display image toward the eye point. 4. A steering wheel of the vehicle is disposed on the eye point side with respect to the dashboard, and the combiner is configured to reduce a parallax due to a front-rear position difference between the combiner and the steering wheel from the eye point. 4. The display device for a vehicle according to claim 1, wherein the display device is formed in an outer shape having a regular arc-shaped upper edge having a different curvature depending on the shape.