JPH079885A - Display device for vehicle - Google Patents

Abstract

PURPOSE:To visualize a virtual image in a three-dimensional way by positioning the image farther than the position of a virtual image visualized at the time of looking at the inner side of the rear section of a meter case laid behind a half mirror from a visual point, regarding a device where the display image of a display device is visualized as a virtual image in the background. CONSTITUTION:The internal side of a meter case rear section 11a is positioned farther than the position of a virtual image X for a visual point E, and subjected to a matting process for forming irregularities on the internal side. A rear surface illuminant 7 for lighting the internal side of the section 11a is laid in the case 11 at such a position as not directly visible from the visual point E. Also, the internal side of the section 11a is printed or coated to the specified color, for example, color different from the display image color of a display device 2. According to this construction, the display image of the device 2 can be visualized in a three-dimensional way against the internal side of the section 11a as the background, and as a virtual image between a half mirror 3 and the internal side of the section 11a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicular display device for visually recognizing a display image of a display device as a virtual image in a background.

[0002]

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

A light control film 4, a color film 5 and a light diffusing plate 6 are arranged in close contact with each other on the rear surface of the half mirror 3, and the background light source 7 and the light source 7 are arranged behind them. A reflection plate 8 that reflects light is attached, and the back of the reflection plate 8 is a meter case back portion 11a. Note that the light control film 4 has a louver-shaped strip horizontally, and prevents the light of the background light source from illuminating the display device to prevent the structure of the display device from appearing on the half mirror and being visible to the driver. It is for. Reference numeral 9 is a front glass, which is for the purpose of preventing dust and the like from entering the inside of the meter and mechanically protecting it, and is usually formed of 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 the control unit (not shown), the light (display image) from the display device 2 is reflected by the half mirror 3 toward the driver's viewpoint E. From here, the display image of the display device 2 is visually recognized as the virtual image X on the rear surface side of the half mirror 3. Since the background light source 7 is also turned on at the same time, the light from the background light source 7 is transmitted 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 the virtual image X in the background color colored by the color film 5.

[0005]

In the conventional vehicle display device of this type, as described above, the color film 5 is irradiated with the light of the light source 7 to be colored into a monochromatic light, and the color image is displayed from the position where the virtual image is displayed. Since it is also shown above, the background of the virtual image X of the display image cannot be visually recognized as a surface. That is, the virtual image X of the display image cannot be visually recognized as a display having a stereoscopic effect.

The present invention has been made in order to solve the above-mentioned problems, and makes it possible to visually recognize the virtual image of the display image with a stereoscopic effect, and to make the virtual image of the display image easy to see. It is intended to provide a display device for a vehicle.

[0007]

According to the present invention, a half mirror is arranged diagonally opposite to a display surface of a display device, and background means is provided behind the half mirror.
A display device for a vehicle, wherein a display image of the display device is reflected by the half mirror to lead to a driver's viewpoint, and a virtual image of the display image is visually recognized on the background surface formed by the background means from the viewpoint, The background means is located at a position deeper than the position of the virtual image, and has a rear surface of the meter case having a matte inner surface, and a background for irradiating the rear surface of the meter case that is not directly viewed from the driver's viewpoint. It is characterized by being configured with a light source.

The inner surface of the meter case is preferably colored by printing or painting so as to have a color different from the image displayed on the meter display section.

[0009]

With the above-mentioned structure, the light from the display device is reflected by the half mirror and guided to the viewpoint, and the display image of the display device is viewed as a virtual image behind the half mirror from the viewpoint. . Further, from the viewpoint, the rear portion of the meter case illuminated by the light source is visually recognized behind the virtual image of the display image, so that the virtual image is stereoscopically displayed with the rear portion of the meter case as the back.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing the configuration of a vehicle display device according to an embodiment of the present invention. The same or corresponding parts as in FIG. In FIG. 1, a virtual image X of the inner surface of the meter case back surface portion 11a with respect to the viewpoint E is displayed.
The case inner surface of the case back surface portion 11a is matted to be uneven.

The rear light source 7 for irradiating the inner surface of the meter case rear surface 11a is disposed in the upper portion of the meter case 11, which is a position not directly visible from the viewpoint E. Furthermore, the inner surface of the meter case back surface portion 11a is made to have a predetermined color by printing or painting, for example, a color different from the display image of the display device 2. It should be noted that if the ground color of the inner surface of the meter case rear surface 11a is different from the color of the display image of the display device 2, or if the meter case rear surface 11a is
If the inner surface of the has a ground color, that color may remain as it is.

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 in front of the inner surface of the meter case back surface portion 11a. Then, since the background light source 7 is also turned on at the same time to indirectly illuminate the inner surface of the meter case back surface portion 11a, the light from the background light source 7 is scattered on the inner surface of the matte-treated meter case back surface portion 11a. The display image of the display device is visually recognized as the virtual image X with the inner surface of the back surface portion 11a as the background.

As described above, according to the embodiment of the present invention, the meter case back surface 1 facing the half mirror 3 is provided.
Since the inner surface of 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 the background of the inner surface of the meter case back surface portion 11a and the half mirror 3 and the meter case back surface portion 11a. The image can be visually recognized as a virtual image X between the inner surface and the inner surface. Further, since the inner surface of the meter case back surface portion 11a that has been subjected to the matte treatment is indirectly illuminated by the background light source 7, the light from the background light source 7 is scattered by the inner surface of the meter case back surface portion 11a and becomes a background. The inner surface of the meter case back surface portion 11a can be recognized as a surface.

Therefore, the virtual image X is visually recognized between the inner surface of the rear surface 11a of the meter case and the half mirror 3 with the inner surface of the rear surface 11a of the meter case as a background. Moreover, since the color of the inner surface of the meter case back surface 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, since the inner surface of the rear portion of the meter case located behind the half mirror is located farther than the position of the virtual image viewed from the viewpoint, the display device. The display image can be visually recognized as a virtual image between the half mirror and the inner surface of the meter case rear surface with the inner surface of the meter case rear surface as the background. Also, since the inner surface of the back surface of the meter case that has been subjected to the matte treatment is indirectly illuminated by the light source for background, the light from the light source for background is scattered by the inner surface of the back surface of the meter case, so The inner surface of the can be recognized as a surface.

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

[Brief description of drawings]

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

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

[Explanation of symbols]

 1 Instrument Panel 2 Display Device 3 Half Mirror 4 Light Control Film 5 Color Film 6 Light Diffusing Plate 7 Background Light Source 8 Reflector 11 Meter Case 11a Meter Case Rear Part E Viewpoint X Virtual Image

Claims (2)

[Claims] 1. A half mirror is arranged diagonally opposite to a display surface of a display device, and a background means is provided behind the half mirror so that a display image of the display device is reflected by the half mirror. In a display device for a vehicle, which is guided to a driver's viewpoint and allows a virtual image of a display image to be visually recognized on the background surface formed by the background means from the viewpoint, the background means is positioned deeper than the position of the virtual image. , And the back side of the meter case with a matte inner surface,
A display device for a vehicle, comprising: a background light source that is arranged at a position not directly viewed from a driver's point of view and illuminates the rear portion of the meter case. 2. The display device for a vehicle 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.