JP2830900B2 - 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 particular, by reflecting display light from a predetermined display portion to a viewer's viewing range with a light-transmitting reflector, the display image of the display unit can be visually recognized as a virtual image in the reflector portion from the viewing range. The present invention relates to a vehicle display device.

[0002]

2. Description of the Related Art Conventionally, display light from a predetermined display unit is housed in a dashboard of a vehicle and transmitted through a first reflector made of a half mirror, and the display light is transmitted to a second reflector. The light is reflected toward the first reflector, and the light reflected by the first reflector is reflected to the driver's view range, so that the driver can display the display image on the display unit to the first reflector. 2. Description of the Related Art A display device for a vehicle, which is visually recognized as a virtual image, thereby enabling a display image on a display unit to be displayed as far away as possible, is often used.

FIG. 5 shows such a conventional vehicle display device. This vehicle display device 1 is housed inside a dashboard 2 of a vehicle, and its display portion is directed toward a driver. It is arranged to be pointed. Below the inside of the case 3 of the vehicle display device 1, a self-luminous display 4 is provided as a display unit for displaying predetermined driving information such as a running speed so that the display surface thereof is directed upward. Above the display surface of the display 4, a reflection plate 5 composed of a half mirror as a first reflection plate for transmitting display light emitted from the display 4 is provided in an inclined manner.

The reflecting plate 5 is supported by a receiving portion 6 formed in the case 3 and its periphery and a substantially lower half thereof.
Between the inner surface of the case 3 and the receiving portion 6
Path restricting portions 7 each extending downward from the upper end edge of
Are formed. The display light emitted from the display 4 is transmitted upward through a part of the upper side of the reflection plate 5 while the irradiation direction is regulated by the light path regulating unit 7.

At a position inside the case 3 facing the display 4 with the reflection plate 5 interposed therebetween, the display light of the display 4 transmitted through the reflection plate 5 is directed toward the reflection plate 5. A concave mirror 8 is disposed as a second reflective plate that performs enlarged reflection. The inclination of the reflective plate 5 is such that display light reflected by the concave mirror 8 is reflected in the direction of the opening 3 a of the case 3. Is set. Further, in the opening 3a of the case 3, a front glass 9 for preventing dust and the like from entering the case 3 and protecting the internal members is disposed.

In such a conventional vehicle display device 1, for example, a digital display of the vehicle speed and a gauge display of the engine speed are formed on the display 4, and the display light of the display is displayed from the display 4. When the light is irradiated, the display light is transmitted through a part of the upper side of the reflector 5 and is reflected by the concave mirror 8 while the irradiation direction is regulated by the light path regulating unit 7. Then, the reflected light reflected by the concave mirror 8 is reflected again by the reflector 5 toward the driver's visible range 10, and the driver can visually recognize the light behind the reflector 5 as shown in FIG. A display image X of a digital display 4a of the vehicle speed and a gauge display 4b of the engine speed on the display 4 formed as a virtual image in the area.
Can be visually recognized.

As a result, a constant optical path length can be secured, and the display image X visually recognized by the driver is displayed at a distant position by the enlarged display by the concave mirror 8, so that the visibility is improved. Can be done.

Conventionally, in such a display device 1 for a vehicle, for example, various warning displays may be performed separately from the above-described display.
By displaying with a sense of depth different from the digital display and the gauge display, the visibility of the display is enhanced.

Conventionally, as shown in FIG. 7, a warning is provided in which a color filter 12 having a predetermined symbol mark formed on the front surface of a lamp case 11 is provided above a case (not shown) of a vehicle display device. A warning indicator 13 as a display unit is disposed so as to be directed to the upper surface of the reflection plate 5, and a light source 14 such as a light bulb is disposed on the back side of the warning indicator 13.

When a predetermined warning display is performed, the light source 14 is turned on to irradiate the light transmitted through the color filter 12 of the warning display 13 onto the upper surface of the reflection plate 5 so that the driver's side can be displayed. And the display image Y of the warning display 13 is visually recognized. Thereby, a plurality of displays having different depth sensations can be performed.

[0011]

However, in the above-mentioned conventional vehicle display device, a plurality of displays having different depth sensations with good visibility can be performed. Since the indicator 4 and the warning indicator 13 need to be separately provided below and above the plate 5, a large installation space for the indicators 4 and 13 is required, and the overall size of the vehicle display device can be reduced. It has a disadvantage that it cannot be achieved.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and provides a display device for a vehicle which requires less installation space for each display unit and can display a plurality of display images having different depth feelings. It is intended for.

[0013]

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, wherein a display radiated from a display unit and transmitted through a light-transmitting first reflecting plate is provided. The light is reflected by the second reflector to the first reflector, and the reflected light from the second reflector is reflected by the first reflector to the viewer's viewing range, whereby the viewing range is obtained. In a vehicular display device in which a display image of the display unit can be visually recognized as a virtual image on the first reflection plate portion, a plurality of display units that perform different displays are concentrated to constitute the display unit. An optical filter for directing display light of at least one display unit in a direction different from display light of another display unit is provided in an emission portion of display light of at least one display unit of the units. Is what you do.

According to a second aspect of the present invention, at least one of the display sections is a warning display section. A plurality of display images based on a plurality of display lights emitted from the respective display units are displayed in a multiplex manner.

[0015]

According to the display device for a vehicle according to the present invention, a plurality of display units for performing different displays are arranged in a concentrated manner, and at least one of the display units emits display light to a display light emitting portion.
Since the optical filter for directing the display light of the at least one display unit in a direction different from the display light of the other display units is provided, the optical filter reaches the reflection surface of the first reflection plate of the at least one display unit. The optical path length and the optical path length reaching the reflection surface of another display unit are different, and the display image by the at least one display unit and the display image by the other display unit are at different positions and different. In a vehicle display device that can be displayed with a sense of depth and performs a plurality of different displays, it is possible to enhance the visibility of a driver.

Further, since the plurality of display units are centrally arranged, the installation space for the display units can be reduced, and the overall size of the vehicle display device can be reduced.

Further, at least one of the display units is provided.
By using one display unit as a warning display unit, a warning display can be displayed with a different sense of depth from other displays, and the visibility of the warning display can be improved while the entire vehicle display device is compactly configured. In addition, by displaying the display image of the warning display and the display image of the other display in a multiplex manner, the driver can intensively visually recognize a plurality of pieces of information in a certain visual recognition area, The visibility can be further improved.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 shows an embodiment of a vehicular display device according to the present invention. The vehicular display device 1 is arranged such that a display portion of the vehicular display device 1 is directed toward a driver inside a dashboard 2 of the vehicle. A fluorescent display tube, a light-emitting diode, a liquid crystal display device with a backlight, and the like are provided below the inside of the case 3 of the vehicle display device 1 as display portions for displaying predetermined driving information such as a running speed. The self-luminous display 4 is disposed so that its display surface is directed upward.

In this embodiment, the display 4
On one side (the rear side of the case 3), a warning display section 15 is integrally formed adjacent to the display section 4a of the display 4, and as shown in FIG. At the lower end of the optical path restricting portion 7 above and behind the case 3, a blind for directing and transmitting the irradiation light of the warning display portion 15 in a certain direction (in the present embodiment, the front direction of the case 3). An optical filter 16 such as a film is provided. Thus, in the present embodiment, the display light emitted from the warning display unit 15 is emitted while being directed to the front of the case 3.

Above the display surface of the display 4, a reflection plate 5 composed of a half mirror as a first reflection plate for transmitting display light emitted from the display section 4a of the display 4 is inclined. At the position inside the case 3 and facing the display 4 with the reflection plate 5 interposed therebetween, the display light of the display 4 transmitted through the reflection plate 5 is transmitted to the reflection plate 5. A concave mirror 8 as a second reflection plate that expands and reflects the light is provided. Further, in the opening 3a of the case 3, a front glass 9 for preventing dust and the like from entering the case 3 and protecting the internal members is disposed. Since other configurations are the same as those of the above-described conventional configuration, the same portions are denoted by the same reference numerals and description thereof will be omitted.

Next, the operation of this embodiment will be described.
In this embodiment, from the display unit 4a of the display unit 4,
For example, when the display light of the digital display of the vehicle speed and the gauge display of the engine speed is irradiated, the display light is transmitted through a part of the upper side of the reflector 5 while the irradiation direction is regulated by the light path regulating unit 7, Concave mirror 8
Is reflected by Then, the reflected light reflected by the concave mirror 8 is reflected again by the reflector 5 toward the driver's visible range 10, and the driver is formed as a virtual image in the visible area behind the reflector 5. The display image X of the digital display of the vehicle speed and the gauge display of the engine speed on the display 4 can be visually recognized.

On the other hand, when a predetermined warning display of the vehicle is performed, by operating the warning display section 15, the display light emitted from the warning display section 15 is transmitted from the front of the case 3 by the optical filter 16 to the front. While being directed, the light passes through the reflecting plate 5 and irradiates the front end portion 8 a of the concave mirror 8. And this concave mirror 8
Is reflected toward the back surface 9a of the front glass 9 and the display light reflected on the back surface 9a is again reflected by the reflector 5 to the driver's view range 10. . Thereby, the warning display image Y of the warning display unit 15 formed as a virtual image can be visually recognized in a lower part of the viewing area behind the reflection plate 5.

In this case, in the present embodiment, the display light from the display section 4a of the display unit 4 passes through the reflector 5 and is reflected toward the reflector 5 by the concave mirror 8, and the reflector 5 Is reflected by the driver's view range 10, and the display light from the warning display unit 15 is:
Since the light passes through the reflecting plate 5 and is reflected toward the reflecting plate 5 by the concave mirror 8 and the front glass 9 and reflected by the reflecting plate 5 into the driver's view range 10, the display 4 and the warning The optical path length of the display light from the display unit 15 to the reflection plate 5 can be made different, and the display image X of the display unit 4 and the display image Y of the warning display unit 15 are displayed at different depths and at different positions. It is possible to do.

Therefore, in the present embodiment, the optical path length of the display light to the reflector 5 by the display 4 and the optical path length of the display light to the reflector 5 by the warning display unit 15 can be made different. , The display image X of the display 4 and the display image Y of the warning display unit 15 are located at different positions,
In addition, the display can be performed with a different sense of depth, and the visibility by the driver can be improved. In addition, the warning display section 15 is formed integrally with one side of the display 4, and the warning display section 15 is arranged adjacent to the display section 4a of the display 4, so that each display section is provided. 4a,
15 does not need to be installed as a separate display, which can reduce the installation space of the display,
The size of the entire vehicle display device can be reduced.

In the above embodiment, the warning display section 15 is formed integrally with one side of the display 4, but as shown in FIG. A warning display 13 may be formed as a display unit. This warning indicator 13
Is provided with a color filter 12 having a predetermined symbol mark formed on a front surface of a lamp case 11, and a light source 14 such as a light bulb is provided on a rear surface side of the lamp case 11. The optical filter 16 is provided on the upper surface of the color filter 12.

In this case as well, the light emitted from the warning display 13 is directed in the forward direction of the case 3 by the optical filter 16 and transmitted therethrough.
The display image of the display 4 and the display image of the warning display 13 are made different by making the optical path length of the display light up to the reflection plate 5 by the warning display 13 different from the optical path length of the display light by the warning display 13. Can be displayed at different positions and with different senses of depth, the visibility for the driver can be enhanced, and the display 4 and the warning display 13 are arranged adjacent to each other. The installation space for the indicators 4 and 13 can be reduced, and the overall size of the vehicle display device can be reduced.

FIG. 4 shows another embodiment of the present invention, in which the inclination angle of the front glass 9 is changed, and the display image Y of the warning display section 15 is compared with the display image X of the display 4. The display is made to overlap.
The other parts are the same as those of the embodiment shown in FIG. 1, and the same parts are denoted by the same reference numerals and description thereof will be omitted.

In this embodiment, similarly to the above-described embodiment, the optical path length of the display unit 4a of the display unit 4 to the display light reflecting plate 5 and the display path of the warning display unit 15 to the display light reflecting plate 5 are similar. By making the optical path length different, the display image X of the display unit 4 and the display image Y of the warning display unit 15 can be displayed at different positions and with different senses of depth, and the visibility by the driver is improved. Can do it, and
The display unit 4a and the warning display unit 1 of the display unit 4
5 are arranged adjacent to each other, the installation space for the display device can be reduced, and the size of the entire vehicle display device can be reduced.

By changing the angle of inclination of the front glass 9, the display light of the warning display section 15 transmitted through the reflecting plate 5 and applied to the concave mirror 8 is reflected by the back surface 9 a of the front glass 9. Then, the light path when reflected by the reflector 5 to the driver's view range 10 can be changed to that of FIG. 1, whereby the display of the warning display unit 15 is displayed in the view area behind the reflector 5. Image Y
Can be displayed above that of FIG. 1, that is, superimposed on the display image X by the display unit 4 a of the display unit 4. In this way, by displaying a plurality of display images X and Y in a multiplexed manner in a predetermined viewing area, the driver can intensively view a plurality of pieces of information in a certain viewing area, and the visibility by the driver is improved. Can be more enhanced.

In this embodiment, the display 4
And the display image Y by the warning display unit 15 are displayed in a multiplex manner. However, the warning display by the warning display unit 15 is not always operated, but is operated only at the time of warning. Therefore, even in the case of multiple display, it does not prevent the display 4 from visually recognizing the display image X. Further, in each of the above embodiments, the case where the warning display is displayed with a different sense of depth has been described. However, the display unit on which the optical filter 16 is provided is not limited to the warning display, and a plurality of displays are performed. Any display may be used as long as it is possible, and the present invention can be variously changed as necessary.

[0031]

As described above, in the display device for a vehicle according to the present invention, a plurality of display portions for performing different displays are arranged in a concentrated manner, and emission of display light from at least one of the display portions is performed. An optical filter for directing the display light of the at least one display unit in a direction different from the display light of the other display unit is provided in the portion, so that a display image by the at least one display unit and an optical filter by the other display unit are provided. A display image can be displayed at a different position and with a different sense of depth, and in a vehicle display device that performs a plurality of different displays, visibility of a driver can be improved.

Further, since a plurality of display units are centrally arranged, the installation space for the display units can be reduced, and the overall size of the vehicle display device can be reduced.

Further, at least one of the display units is provided.
By using one display unit as a warning display unit, the warning display can be displayed with a different sense of depth from other displays, and the visibility of the warning display can be enhanced while the entire vehicle display device is compactly configured. Also, by displaying the display image of the warning display in a multiplex manner with the display images of other displays, the driver can intensively view a plurality of pieces of information in a certain viewing area, and the visibility by the driver can be improved. And the like can be further improved.

[Brief description of the drawings]

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

FIG. 2 is a schematic enlarged configuration diagram of a display portion of FIG.

FIG. 3 is a schematic enlarged configuration diagram showing another embodiment of a display portion.

FIG. 4 is a schematic sectional view showing another embodiment of the present invention.

FIG. 5 is a schematic sectional view showing an example of a conventional vehicle display device.

FIG. 6 is an explanatory diagram showing a display state of a conventional vehicle display device, and is a diagram in which a display surface is viewed from the front.

FIG. 7 is a schematic configuration sectional view showing another display device for performing a plurality of displays by a conventional display device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vehicle display apparatus 2 Dashboard 3 Case 4 Display 4a Display part 5 Reflector 8 Concave mirror 9 Front glass 10 Viewing range 11 Lamp case 12 Color filter 13 Warning display 14 Light source 15 Warning display part 16 Optical filter X Vehicle speed Display image for displaying Y, etc. Display image for warning display

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) B60K 35/00 G02B 27/02 G09F 9/00 301

Claims (3)

(57) [Claims] The display light radiated from a display unit and transmitted through a first light-transmitting reflector is transmitted to the first reflector by a second reflector.
And the reflected light from the second reflecting plate is reflected by the first reflecting plate to a viewing range of a viewer, so that a display image of the display unit is displayed from the viewing range to the first. A plurality of display units that perform different displays are concentrated on the display unit, and a display of at least one of the display units is provided. A display device for a vehicle, wherein an optical filter for directing display light of at least one display unit in a direction different from display light of another display unit is provided in a light emitting portion. 2. The vehicle display device according to claim 1, wherein at least one of the display units is a warning display unit. 3. The vehicle display device according to claim 1, wherein a plurality of display images by a plurality of display lights emitted from the respective display units are displayed in a multiplex manner.