JP2001171392A - Vehicular display unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicular display unit that can effectively offer a stereoscopic perspective between a real image display and a virtual image display and between a virtual image and the background. SOLUTION: The vehicular display unit comprises a real image display and a virtual image display arranged like a hood in front of and over the real image display, and offers a front-back combination display made up of a real image displayed by the real image display and a virtual image displayed by the virtual image display. The screen of the virtual image display carries a translucent decorating film that can establish a perspective between the real and virtual images.

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 uses a combination of a real image display for displaying a real image in front of a driver's seat of a car and a virtual image display for displaying a virtual image via a half mirror. In particular, the present invention relates to a vehicle display device capable of effectively producing a three-dimensional perspective between the real image display and the virtual image display and between the virtual image and its background.

[0002]

2. Description of the Related Art For example, a conventional vehicular display device as shown in FIG. 7 is provided with a real image display 1 comprising an analog instrument or a digital instrument at a position in front of a driver. A half mirror 2 is arranged in front of the half mirror 2, and a virtual image display 3 for reflecting a display image with respect to the half mirror 2 is provided above the half mirror 2 and displayed by the real image display 1. A display image such as an instrument indication value can be displayed as a real image in the driver's direction through the half mirror 2, and a display image such as a background displayed by the virtual image display 3 can be displayed in the driver's direction using the half mirror 2. And is displayed as a virtual image.

[0003] A display image by the real image display 1 is
When the display images by the virtual image display 3 are simultaneously displayed, a stereoscopic effect can be obtained as if the real image display by the real image display 1 and the virtual image display by the virtual image display 3 were displaced in the front-back direction. Thus, a three-dimensional display that is effective in terms of design or display function can be expected (a virtual image by the virtual image display 3 is displayed as a background behind the real image display 1). In order to further enhance the effectiveness of the three-dimensional display, the virtual image display 3 is displayed on the virtual image display 3 by forming at least the display surface of the virtual image display in a three-dimensional curve as shown in FIG. There is also known a vehicle display device configured to display a virtual image in a curved manner so as to enhance stereoscopic vision.

[0004]

However, in any of the above-described vehicle display devices, it is impossible to sufficiently obtain a sense of depth between the real image display by the real image display 1 and the virtual image display by the virtual image display. That is, in the vehicle display device shown in FIGS. 7 and 8, the virtual image display device based on the virtual image display device 3 relates to the distance between the display surface of the virtual image display device 3 and the reflection surface of the half mirror 2. The larger the distance, the more the virtual image display device can be displayed at a position in the depth direction than the half mirror 2, whereby the sense of distance between the real image display position and the virtual image display position can be emphasized. In the device, it is impossible to set a large distance between the display surface of the virtual image display 3 and the reflection surface of the half mirror 2 due to restrictions on its shape and size.
It is difficult to show a great sense of distance between the real image display position by the real image display and the virtual image display position by the virtual image display. Had difficulty. Further, if only a light-colored light emitting surface is formed on the virtual image display 3 as a background display, an effective perspective cannot be obtained, and a wide space cannot be produced.

The present invention has been made in view of such a fact. The present invention has a real image display and a virtual image display arranged in an eaves shape in front of the real image display. In a vehicular display device that combines and displays a displayed real image and a virtual image displayed by a virtual image display, a sense of perspective (a sense of depth) between the real image and a virtual image displayed behind the real image. It is another object of the present invention to provide a vehicle display device capable of effectively producing a perspective between a virtual image and its background.

[0006]

According to a first aspect of the present invention, there is provided a real image display, comprising: a virtual image display disposed in an eaves-like shape in an upper front part of the real image display. And, in a vehicle display device for displaying the real image displayed by the real image display and the virtual image displayed by the virtual image display in a front and rear direction, the display surface of the virtual image display includes the mutual image of the real image and the virtual image. The present invention is characterized in that it is a vehicle display device provided with a translucent decorative film capable of producing a sense of perspective.

According to a second aspect of the present invention, in the translucent decorative film according to the first aspect, the surface of the transparent translucent film is provided with a line pattern of a plurality of parallel fine lines. Moreover, these line patterns are characterized in that they are display devices for vehicles that display gradations that gradually fade along the line width direction with respect to the center line of each fine line.

According to a third aspect of the present invention, in the translucent decorative member according to the first aspect, a line pattern of a plurality of parallel fine lines is formed on the surface of the transparent translucent film. Moreover, the line patterns have gradations that gradually become lighter along the line width direction from the center line of each thin line, and the above-mentioned ground width is gradually expanded from the center of the thin lines toward both ends thereof. It is a display device for a vehicle that is displayed.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings. FIG. 1 is a schematic perspective view of a vehicle display according to the present embodiment, FIG. 2 is a front view of only a virtual image display, and FIG. 3 is a detailed sectional view of the virtual image display.

Reference numeral 11 denotes a vehicle display device which is mounted in an unillustrated instrument panel provided in front of the driver's seat of the automobile.
Analog speed display 12, engine tachometer 13,
A real image display 16 having a fuel gauge 14 and a water temperature gauge 15; and a virtual image display 17 for displaying a virtual image of the background of the real image display displayed by the real image display 16, and a driver of the real image display 16 A half mirror 18 positioned at an upward inclination is disposed in front of the real image display 1.
6 can be directly viewed through the half mirror 18.

The virtual image display 17 is provided in an upper front part of the real image display 16 so as to protrude in an eaves-like shape in the driver's direction and is curved downward. A frame 19, a light guide plate 20 supported inside the container frame 19, a light diffusion plate 21 superposed on the lower surface of the light guide plate 20, and a light diffusion plate 21 superposed on the lower surface of the light diffusion plate 21 And a louver-type filter 23 that is superposed on the lower surface of the decorative film 22 and controls the light emission direction. A cold cathode tube 24 serving as a light source is provided near the edge.

The form of the transmissive decorative film 22 incorporated in the virtual image display 17 having the above-described configuration may be, for example, as shown in FIG. A line pattern consisting of the thin lines 25 of the book is applied by the printing means. Further describing these fine lines 25 in detail, when the fine lines 25 are enlarged, as shown in FIG. 5, each fine line 25 has a gradation such that it gradually fades along its line width direction with its center line as a boundary. I have.

In another embodiment of the present invention, as shown in FIG. 6, each of the fine lines 25 applied to the front surface or the back surface of the decorative film 22 is formed as a gradation form with the center line of each fine line as a boundary. The gradation is displayed such that the gradation gradually fades along the line width direction, and the gradation width is gradually increased from the center of each thin line toward both ends.

In the embodiment shown in FIG. 4, the fine lines 25 are formed in a large number in parallel only in the horizontal direction. For example, in addition to these horizontal parallel lines, a vertical fine line is added. You may. Further, although only thin lines are shown in the embodiment, patterns, characters, and the like may be formed in addition to the thin lines, and gradation may be formed so as to gradually fade from the center of the pattern, characters, and the like to the outside.

Next, the operation will be described. By displaying both the real image display 16 and the virtual image display 17, the display by the real image display 16 can be directly viewed as a real image by the driver through the half mirror 18. . At the same time, the display by the virtual image display 17 is displayed on the half mirror 18.
And is displayed behind the real image as a virtual image.
Although a perspective in the depth direction can be obtained between the real image and the virtual image displayed in this way, in the present embodiment,
The three-dimensional effect of the virtual image itself can be produced, whereby the perspective (three-dimensional effect) between the real image and the virtual image and between the virtual image and its background can be further enhanced.

That is, the decorative film 22 of the virtual image display 17
The line pattern applied to each of the thin lines 25 has a gradation that gradually becomes lighter along the line width direction, does not clarify the outline (boundary) of the line, and is blurred. As a result, each thin line becomes inconspicuous, and each thin line 25 can be seen as if it were raised, so that the stereoscopic effect between the virtual image of the line pattern and its background is also highlighted. Therefore, the three-dimensional effect between the real image and the virtual image and between the virtual image and the background can be effectively produced, and the real image can be visually observed without being distracted by the thin line virtual image, and the visibility of the real image can be improved. Is enhanced. Further, by gradually increasing the gradation width from the center to the both ends of each of the fine lines, it is possible to produce a further expanded perspective.

[0017]

As described above, in the virtual image display 17 of the display device for a vehicle according to the present invention, a large number of fine lines 25 parallel to the surface of the transparent film are formed by printing or the like, and each of the fine lines 25 is printed. 25 has a decoration film 22 having a gradation that gradually becomes lighter in the narrow width direction.
In the virtual image display, the sharpness of the fine lines 25 is reduced, and each fine line 25 is displayed without being noticeable.
The three-dimensional effect as if each thin line is floating in the front-back direction is emphasized, so that the existence of the thin line 25 is not conspicuous, and the three-dimensional effect of the display can be enhanced in combination with the real image display by the real image display. .

[Brief description of the drawings]

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

FIG. 2 is a front view of only a virtual image display of the vehicle display device according to the present invention.

FIG. 3 is an enlarged sectional view of a main part of a virtual image display of the vehicle display device according to the present invention.

FIG. 4 is an explanatory view of a decorative film used in the vehicle display device according to the present invention.

FIG. 5 is a detailed view of a line pattern of a decorative film used in the vehicle display device according to the present invention.

FIG. 6 is a detailed view showing another example of a line pattern according to the present invention.

FIG. 7 is a perspective view showing a conventional vehicle display device.

FIG. 8 is a perspective view showing still another conventional example of a vehicle display device.

[Description of Signs] 11 ... Vehicle display device 12 ... Vehicle speedometer 13 ... Engine tachometer 14 ... Fuel gauge 15 ... Water temperature meter 16 ... Real image display 17 ... Virtual image display 18 ... Half mirror 19 ... Device frame 20 ... Light guide plate DESCRIPTION OF SYMBOLS 21 ... Light diffusion plate 22 ... Decorative film 23 ... Louver type filter 24 ... Cold cathode tube 25 ... Fine wire

Claims (3)

[Claims] 1. A real image display comprising: a real image display; and a virtual image display arranged in an eaves-like manner in front of the real image display, wherein the real image displayed by the real image display and the virtual image displayed by the virtual image display are provided. In a display device for a vehicle that displays a virtual image in front and behind, a translucent decorative film capable of producing a mutual perspective between the real image and the virtual image is disposed on a display surface of the virtual image display. A display device for a vehicle, comprising: 2. The light-transmissive decorative film has a transparent light-transmissive film on which a plurality of parallel fine lines are formed on the surface of the transparent light-transmissive film. 2. The vehicle display device according to claim 1, wherein a gradation that gradually fades along the line width direction is displayed as the boundary. 3. The translucent decorative member is provided with a plurality of parallel fine line patterns on the surface of the transparent translucent film, and the line patterns are formed from the center line of each fine line. The gradation has a gradation that gradually becomes lighter along the line width direction, and the gradation width is displayed so as to gradually increase from the center of the fine lines toward both ends thereof. Item 4. The vehicle display device according to item 1.