JP3067066B2 - Display device for vehicles - Google Patents

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 in which a display image of a display device is visually recognized as a virtual image in the background.

[0002]

2. Description of the Related Art FIG. 2 is a side view showing the structure of a conventional display device for a vehicle as described above. In FIG. 2, reference numeral 1 denotes an instrument panel disposed in front of a driver's seat.
A display device for a vehicle, a so-called meter, is provided, and the upper portion functions as a meter hood. Inside the instrument panel 1, a display device 2 made of a VFD or the like is disposed with its display surface facing downward while being supported by the meter case 11, and the display device 2 faces the display surface of the display device 2. The half mirror 3 is attached so as to face diagonally.

On the back of the half mirror 3, a light control film 4, a color film 5, and a light diffusing plate 6 are disposed in close contact in this order, and further behind the light source 7 and the light source 7 for the background. A reflecting plate 8 for reflecting light is attached, and the back is a back portion 11a of the meter case. Note that the light control film 4 has a louver-like band extending horizontally, so that the light from the background light source illuminates the display device and prevents the structure of the display device from being reflected on the half mirror and being seen by the driver. It is for. Reference numeral 9 denotes a front glass for preventing dust or the like from entering the inside of the meter and for mechanical protection, and is usually formed of a transparent plastic or the like.

Next, this operation will be described. First,
When predetermined information is displayed on the display device 2 under the control of a control unit (not shown), light (display image) from the display device 2 is reflected by the half mirror 3 toward the driver's viewpoint E. From behind, the display image of the display device 2 is visually recognized as a virtual image X on the back side of the half mirror 3. Since the light source 7 for the background is also turned on at the same time, the light from the light source 7 for the background passes through the light diffusion plate 6, the color film 5, the light control film 4 and the half mirror 3, and is visually recognized at the viewpoint E. The display image of the display device 2 is visually recognized as a virtual image X in the background color colored by the color film 5.

[0005]

As described above, the conventional vehicle display device of this type irradiates the color film 5 with the light of the light source 7 so as to be colored monochromatic light, and from the position where the virtual image is displayed. Cannot be visually recognized as the surface of the virtual image X of the display image. That is, the virtual image X of the display image cannot be visually recognized as a display having a three-dimensional effect.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and can provide a three-dimensional effect so that a virtual image of a display image can be visually recognized, so that the virtual image of the display image can be easily seen. It is intended to provide a display device for a vehicle.

[0007]

According to the present invention, a half mirror is disposed obliquely to a display surface of a display device, and a background means is provided behind the half mirror.
The display device for a vehicle, wherein a display image of the display device is reflected by the half mirror and guided to a driver's viewpoint, and a virtual image of the display image is visually recognized from a viewpoint on a background surface formed by the background means. The background means is located deeper than the position of the virtual image, and the inner surface is provided with unevenness by a mat process, and the irradiation light is reflected and scattered by the unevenness, and from the driver's viewpoint, It is located at a position that is not directly seen ,
It is characterized by comprising a background light source for irradiating the irradiation light to the inner surface .

[0008] The inner surface of the meter case is preferably colored differently from the display image of the meter display section by printing or painting.

[0009]

With the above construction, the light from the display device is reflected by the half mirror and guided to the viewpoint. From the viewpoint, the display image of the display device is visually recognized as a virtual image behind the half mirror. . Also, from the driver's perspective
The irradiation light from the background light source placed at a position that is not seen is reflected and scattered on the inner surface of the meter case back part with unevenness by mat processing, from the viewpoint
The presence of the uneven inner surface of the meter case back is clearly visible behind the virtual image of the display image by the light reflected and scattered by the unevenness, so the virtual image is located behind the virtual image .
It is projected three-dimensionally with the inner surface of the back of the meter case behind.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing a configuration of a vehicular display device according to an embodiment of the present invention, and the same or corresponding parts as those in FIG. In FIG. 1, a virtual image X is formed with respect to the viewpoint E from the inner surface of the meter case back portion 11 a.
And the inner surface of the case back portion 11a is subjected to a matting process so as to be uneven.

The rear light source 7 for irradiating the inner surface of the meter case rear portion 11a is disposed at an upper position in the meter case 11, which is a position not directly visible from the viewpoint E. Further, the inner surface of the meter case back portion 11a is given a predetermined color by printing or painting, for example, a color different from the display image of the display device 2. Note that if the ground color of the inner surface of the meter case back portion 11a is different from the color of the display image of the display device 2, or the meter case back portion 11a
If there is a ground color on the inner surface of the, that color may be used.

Next, the operation of the vehicle display device will be described. First, when predetermined information is displayed on the display device 2 under the control of a control unit (not shown), light (display image) from the display device 2 is reflected by the half mirror 3 and guided to the viewpoint E. On the back side of 3,
The display image of the display device 2 is visually recognized as a virtual image X. Then, in order to indirectly illuminate the inner surface of the meter case rear surface portion 11a illuminated background light source 7 at the same time, directly from the driver's perspective
Vision is the background light source 7 or et disposed at a position not light the inner surface of the meter case rear surface portion 11a having undergone matted
Since the light is reflected and scattered by the unevenness, the uneven inner surface of the meter case back portion 11a located behind the half mirror exists.
Now you can clearly see it. Further, since the inner surface of the meter case back portion 11a is located behind the virtual image X, the display image of the display device is visually recognized as the virtual image X with the meter case back portion 11a as a background. Therefore,
The virtual image is formed between the inner surface of the back of the meter case and the half mirror.
Formed between the two, with the inner surface of the back of the meter case as the background
It is located rearward due to the sense of relative distance from the inner surface
More stereoscopic than just a virtual image without background
It is visually recognized in a state where it is right.

As described above, according to one embodiment of the present invention, the meter case rear portion 1 facing the half mirror 3 is provided.
Since the inner surface of the display device 1a is located farther than the position of the virtual image X with respect to the viewpoint E, the display image of the display device 2 is provided with the inner surface of the meter case back portion 11a as a background, the half mirror 3 and the meter case back portion 11a. Can be three-dimensionally recognized as a virtual image X between itself and the inner surface. Further, since the inner surface of the meter case rear portion 11a subjected to the matte treatment is indirectly illuminated by the background light source 7, the light from the background light source 7 is scattered on the inner surface of the meter case rear portion 11a, and becomes the background. The inner surface of the meter case back portion 11a can be recognized as a surface.

Therefore, the virtual image X is visually recognized with a three-dimensional effect between the inner surface of the rear portion 11a and the half mirror 3 with the inner surface of the meter case rear portion 11a as a background. Further, since the color of the inner surface of the meter case back portion 11a is different from the display image of the display device 2, the virtual image X is easy to see.

[0015]

As described above, according to the present invention, the inner surface of the rear part of the meter case located behind the half mirror is located farther than the position of the virtual image viewed from the viewpoint, and the matte processing is performed. The inner surface of the rear part of the meter case is indirectly illuminated with a background light source so that it can be seen directly from the driver's viewpoint.
The light from the background light source arranged in no position to scatter reflected by unevenness of the inner surface of the meter case rear surface portion are to be clearly aware of the inner surface of the main Takesu rear portion as the presence of certain aspects of irregularities So, the display image of the display device,
With the inner surface of the meter case back portion as a background, a virtual image can be visually recognized between the half mirror and the inner surface of the meter case back portion.

Therefore, the virtual image formed between the inner surface of the meter case rear part and the half mirror is based on the relative distance between the inner surface of the meter case rear part and the inner surface of the meter case rear part . It is visually perceived with a more three-dimensional effect than in the case of a mere virtual image that does not exist . In addition, since the color of the inner surface of the rear portion of the case is different from the color of the display image of the display device, the virtual image X is easy to see.

[Brief description of the drawings]

FIG. 1 is a side view showing a configuration of a vehicle display device according to an embodiment of the present invention.

FIG. 2 is a side view showing a configuration of a conventional vehicle display device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Instrument panel 2 Display device 3 Half mirror 4 Light control film 5 Color film 6 Light diffusion plate 7 Light source for background 8 Reflector 11 Meter case 11a Meter case back part E viewpoint X virtual image

Claims (2)

(57) [Claims] 1. A half mirror is disposed obliquely to a display surface of a display device, and a background means is provided behind the half mirror to reflect a display image of the display device by the half mirror. A vehicle display device that guides the driver to the driver's viewpoint and allows a virtual image of a display image to be visually recognized on a background surface formed by the background unit from the viewpoint, wherein the background unit is positioned deeper than the position of the virtual image. and wherein the concave irradiation light unevenness is applied by matted on the inner surface
A meter case back portion that is made to be reflected and scattered by the convex, and a background light source that is arranged at a position not directly seen from a driver's viewpoint and irradiates the irradiation light to the inner surface of the meter case back portion. A display device for a vehicle, comprising: 2. The vehicle display device according to claim 1, wherein an inner surface of the rear portion of the meter case has a color different from a display image of the display device by printing or painting.