JP2004249753A - Display device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display device for a vehicle enhancing a high-grade sense by producing stereoscopic effect and capable of coping with variation of a product. <P>SOLUTION: In the reflection type display device for a vehicle, a distance D3 from a display surface of a display unit 23 for background to a half mirror 31 and a distance D2 from a display surface of a display unit 22 for virtual image to the half mirror 31 are different. The background displayed by the display unit 23 for background is switchable. The display unit 13 for background housing the display unit 23 for background is exchangeable. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a reflection type vehicle display device which is attached to an instrument panel of a vehicle, reflects information displayed on a display device by a reflection member, and provides the information to a driver or the like.
[0002]
[Prior art]
2. Description of the Related Art In recent years, so-called reflection type vehicle display devices have been used in vehicles such as passenger cars in order to improve visibility from drivers and the like. In this vehicle display device, information from a virtual image display device embedded in an instrument panel is normally reflected by a predetermined reflecting member, and the reflected information is emitted toward an eye range of a driver or the like. I have to. As a result, the distance from the display to the eye range is made as long as possible, reducing the difference from the front field of view through the window shield, and achieving compactness of the device while improving the visibility of the above information from the driver and the like. Let me.
[0003]
In the vehicle display device, information such as white speed and various warning information are usually combined with a black background and visually recognized by a driver or the like.
[0004]
[Problems to be solved by the invention]
By the way, in recent years, diversification of personal tastes, diversification of vehicle types, vehicle types, and the like have increased demands for differentiating and upgrading vehicle display devices. On the other hand, in the above-described conventional vehicle display device, the background area other than the display area for information such as speed and various warning information is uniformly black. Further, the stereoscopic effect is poor, in which only the above information is displayed on a black background. For this reason, there is a demand for a product that can effectively respond to recent demands by effectively utilizing the background area.
[0005]
Accordingly, an object of the present invention is to provide a vehicular display device capable of giving a more three-dimensional effect to enhance a sense of quality and responding to diversification of products in view of the above-mentioned current situation. It is another object of the present invention to provide a vehicle display device with improved visibility.
[0006]
[Means for Solving the Problems]
The display device for a vehicle according to claim 1, which has been made to solve the above problem, includes a main display for displaying information about a vehicle, a background display for selectively displaying a plurality of pieces of background information, The information displayed on the display device and the background information displayed on the background display device are reflected on the background display device according to a reflecting member for reflecting toward a predetermined eye range, and a predetermined control signal. Background information switching means for switching the background information, the distance from the display surface of the background display to the reflective member and the distance from the display surface of the main display to the reflective member are different, It is characterized by the following.
[0007]
According to the first aspect of the present invention, in the reflection type vehicle display device, the distance from the display surface of the background display to the reflection member is different from the distance from the display surface of the main display to the reflection member, and the background is different. Can be switched, so that a three-dimensional effect can be obtained and a desired background can be combined.
[0008]
According to a second aspect of the present invention, there is provided a vehicle display device according to the first aspect, wherein a distance from a display surface of the background display to the reflection member is equal to the main distance. Longer than the distance from the display surface of the display to the reflective member, higher priority information is displayed on the main display, lower priority information is displayed on the background display, It is characterized by the following.
[0009]
According to the second aspect of the present invention, the higher priority information is displayed on the main display located at a shorter distance, and the lower priority information is displayed on the background display. The information about the vehicle displayed on the container is further evoked.
[0010]
According to a third aspect of the present invention, there is provided a vehicle display device according to the second aspect, which is mounted on a hybrid vehicle that runs on a battery or gasoline as a power source. A running mode signal indicating whether the hybrid vehicle is running with a battery as a power source or running with gasoline as a power source, and the background indicator is running with a battery as a power source, or It emits light in different colors depending on whether the vehicle is running using gasoline as a power source.
[0011]
According to the third aspect of the present invention, the background emits light in different colors depending on whether the vehicle is running with the battery as the power source or the vehicle is running with gasoline as the power source. Can be recognized without.
[0012]
According to a fourth aspect of the present invention, there is provided a vehicle display device according to the third aspect, wherein the background display is provided in a housing unit in which the main display is housed. Is housed in a detachable background display unit.
[0013]
According to the fourth aspect of the present invention, it is possible to obtain a display device corresponding to a vehicle type, a vehicle model, and the like simply by replacing the background display unit.
[0014]
According to a fifth aspect of the present invention, there is provided a vehicle display device according to the fourth aspect, wherein the reflection member is a half mirror, and a rear surface of the half mirror includes the half mirror. A main display is further provided with a sub-display for emitting and displaying information on vehicles of different types.
[0015]
According to the fifth aspect of the present invention, the present invention can be easily applied to a vehicle display device in which a real image display and a virtual image display are combined. That is, the present invention is very versatile.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a sectional view showing the internal structure of a vehicle display device according to one embodiment of the present invention.
FIG. 2 is a diagram for explaining the principle of stereoscopic display according to the vehicle display device of one embodiment of the present invention.
[0017]
As shown in FIG. 1, the outer shape of the vehicle display device 1 is basically formed by combining a real image display unit 11, a main unit 12 and a background display unit 13, and forms one of the vehicle body. The instrument panel is fixed to an instrument panel (not shown) except for the display section. Each unit is fixed to each other by screws or the like (not shown). As is well known, the instrument panel is disposed below the window shield at the front of the vehicle interior. A hood (not shown) may be attached to the upper end of the real image display unit 11.
[0018]
The background display unit 13 is configured to be detachable from the main unit 12 in which the virtual image display 22 is housed. Therefore, it is possible to combine information from the virtual image display 22 with an arbitrary background. Therefore, it is possible to provide a display device corresponding to the vehicle type, the vehicle type, and the like simply by replacing the background display unit 13. In addition, since it is possible to combine favorite backgrounds, it also helps to enhance entertainment.
[0019]
The vehicle display device 1 having an outer shape composed of such units 11, 12, and 13 includes, for example, two real image displays 21, a virtual image display 22, a background display 23, half mirrors 31, 33, And a mirror 32. Although not shown, a front glass is usually covered in front of the half mirror 31 or the mirror 32.
[0020]
The real image display 21 is a light emitting display type display such as a well-known LCD (liquid crystal display). Here, two real image displays 21 are arranged on the back surface of the half mirror 31. On the display surface of each real image display 21, a display design corresponding to the real image 21a shown in FIGS. 4 and 5 is formed, which is arranged on the real image display unit 11 in response to a predetermined control signal. The light is illuminated from the back side by a light source (not shown) to be displayed. The real image display 21 corresponds to a sub-display in the claims.
[0021]
The virtual image display 22 is a light-emitting display type display such as a well-known VFD (fluorescent display tube). The virtual image display 22 is arranged on the bottom surface at the innermost part of the housing. On the display surface of the virtual image display 22, a display design corresponding to the virtual image 22a shown in FIGS. 4 and 5 is formed, and this is illuminated and displayed in response to a predetermined control signal. The virtual image display 22 corresponds to the main display in the claims.
[0022]
The background display 23 is also a light-emitting display type display such as a well-known VFD (fluorescent display tube). The background display 23 is accommodated in the background display unit 13 and is disposed so as to be substantially orthogonal to the virtual image display 22. However, the background display 23 does not necessarily have to be disposed substantially orthogonal to the virtual image display 22. On the display surface of the background display 23, a display design corresponding to a background described later is formed, and this is illuminated and displayed in response to a predetermined control signal.
[0023]
The half mirrors 31 and 33 are a kind of reflecting member, but have a property of not reflecting all the incident light rays and transmitting some of the light amount. Therefore, the information from the real image display 21 disposed on the back of the half mirror 31 passes through the half mirror 31 and goes to the eye range ER. On the other hand, the information from the virtual image display 22 reflected by the mirror 32 is reflected by the half mirror 31 and goes to the eye range ER. Further, the information from the virtual image display 22 disposed on the back of the half mirror 33 passes through the half mirror 33 and finally goes to the eye range ER. On the other hand, the background information from the background display 23 is reflected by the half mirror 33 and finally goes to the eye range ER. Note that the half mirror 31 corresponds to a reflective member in the claims.
[0024]
The mirror 32 is a well-known plate-shaped reflecting member having a reflectance of about 90%. The mirror 32 is enclosed by a cover glass (not shown) and is disposed so as to be substantially parallel to the inner surface of the housing. That is, the mirror 32 is arranged so that information from the virtual image display 22 and the background display 23 is substantially totally reflected toward the half mirror 31.
[0025]
The operation of the vehicle display device 1 having such a configuration will be described with reference to FIGS. That is, when the display light L1 indicating information such as a warning is emitted from the real image display device 21 in response to the predetermined control signal, the display light L1 passes through the half mirror 31 and the eye range ER. Head for. On the other hand, when display light L2 indicating information such as speed is emitted from the virtual image display 22 in response to a predetermined control signal, the display light L2 passes through the half mirror 33, and is once transmitted to the mirror 32. The light is reflected and goes to the half mirror 31. At the half mirror 31, the display light L2 is reflected again and travels toward the eye range ER as reflected light L2 '. As a result, from the eye range ER, it is visually recognized that information such as speed is displayed in the distance by the distance from the virtual image display 22 to the half mirror 31. Therefore, the difference between the distance from the virtual image display 22 to the eye range and the forward field of view through the window shield is reduced without unnecessarily increasing the size of the entire apparatus. Visibility of the information is improved.
[0026]
When display light L3 indicating background information is emitted from background display device 23 in response to a predetermined control signal, display light L3 is reflected by mirror 32 after being reflected by half mirror 33. Further, the light is reflected by the half mirror 31 and travels toward the eye range ER as reflected light L3 '. Thus, the background information from the background display 23 is combined with the information from the real image display 2 and the virtual image display 22 to be visually recognized from the eye range ER.
[0027]
Specifically, as shown in FIG. 2, a real image 21 a resulting from the real image display 21, a virtual image 22 a representing information derived from the virtual image display 22, and a virtual image 23 a representing background information derived from the background display 23 are displayed. It is visually recognized on the eye range ER side with a three-dimensional effect. That is, assuming that the distance from the real image 21a to the half mirror 31 is D1, the distance from the virtual image 22a to the half mirror 31 is D2, and the distance from the virtual image 23a to the half mirror 31 is D3, these distances are D3> D2. > D1. These distances D1, D2, and D3 correspond to the distances from the respective indicators 21, 22, and 23 (more precisely, each display surface) to the half mirror 31, as shown in FIG. Such a distance difference gives a three-dimensional effect and enhances a sense of quality. In addition, information such as the speed with a higher priority from the virtual image display 22 is called out, and the visibility is improved.
[0028]
Further, the background information from the background display 23 is switched according to a predetermined control signal. An example of this background information switching display will be described below. FIG. 3 is a block diagram showing a circuit configuration related to lighting control of the indicators 21, 22 and 23. FIG. 4 and FIG. 5 are diagrams each showing a display example when the vehicle is running using gasoline and a battery as power sources in the vehicle display device according to the embodiment of the present invention.
[0029]
It is assumed that the vehicle display device 1 is mounted, for example, on a hybrid vehicle that travels while selectively switching using a battery or gasoline as a power source. As shown in FIG. 3, a display control circuit 10 is mounted on this vehicle. The display control circuit 10 corresponds to a background information switching means, receives a sensor signal from a well-known speed sensor, level sensor, warning sensor, or the like, and receives a real image display 21 and a virtual image display 22. The lighting of the corresponding design is controlled. Further, the display control circuit 10 receives a running mode signal indicating whether the hybrid vehicle is running using the battery BT as a power source or running using gasoline as a power source, and determines whether the hybrid vehicle is running using the battery as a power source. Alternatively, the lighting control of the background display 23 is performed depending on whether the vehicle is running using gasoline as a power source.
[0030]
In the lighting control of the background display 23, as shown in FIG. 4, when the vehicle is running using gasoline as a power source, for example, the entire display surface of the background display 23 is made to emit light blue, and the gasoline is powered. A gasoline tank mark 23a1 indicating the source is displayed. Alternatively, only the gasoline tank mark 23a1 may be turned on. In FIG. 4, the real image 21 a is derived from the real image display device 21 and includes, for example, various warning designs and direction design. The virtual image 22a is caused by the virtual image display 22, and is, for example, a speedometer, an odometer, a fuel meter, an A / T position meter, or the like. These allocation methods are not necessarily limited in this way.
[0031]
On the other hand, as shown in FIG. 5, when the vehicle is running with the battery as the power source, for example, it is assumed that the entire display surface of the background display 23 emits light in red and the battery is the power source. The battery mark 23a3 shown is displayed. Alternatively, only the battery mark 23a3 may be turned on. Note that the real image 21a and the virtual image 22a in FIG.
[0032]
As described above, the background emits light with a different color tone depending on whether the vehicle is running with the battery as the power source or the vehicle is running with gasoline as the power source, so that the driving mode of the hybrid vehicle can be recognized without watching. Therefore, safety during traveling is improved.
[0033]
As described above, according to the embodiment of the vehicle display device of the present invention, it is possible to provide a vehicle display device capable of giving a more three-dimensional effect to enhance a sense of quality and responding to diversification of products. Further, according to the embodiment of the vehicle display device of the present invention, it is possible to provide a vehicle display device with further improved visibility.
[0034]
The present invention is not limited to the above embodiment, and can be appropriately changed without departing from the gist of the present invention. For example, the distance relationship may be D2> D3. The background may be, for example, a starry sky, a landscape, a deep sea, or the like. Also, the color tone of the background can be changed as appropriate. Further, instead of the traveling mode signal, for example, a setting signal for manually switching a plurality of preset backgrounds may be used.
[0035]
【The invention's effect】
As described above, according to the first aspect of the present invention, in the reflection type vehicle display device, the distance from the display surface of the background display to the reflection member and the distance from the display surface of the main display to the reflection member. Since the distance is different and the background is switchable, a vehicular display device is provided that can provide a three-dimensional effect, enhance a sense of quality, and can respond to diversification of products.
[0036]
According to the second aspect of the present invention, the higher priority information is displayed on the main display located at a shorter distance, and the lower priority information is displayed on the background display. In addition to the above, the information about the vehicle displayed on the main display is further aroused, and the visibility of the information having the higher priority is improved.
[0037]
According to the third aspect of the present invention, the background emits light in different colors depending on whether the vehicle is running with the battery as the power source or the vehicle is running with gasoline as the power source. Can be recognized without. Therefore, in addition to the above effects, the safety during traveling is also improved.
[0038]
According to the fourth aspect of the present invention, since the background display unit is detachable, an arbitrary background can be combined with the main display. Therefore, it is possible to provide a display device corresponding to a vehicle type, a vehicle class, and the like simply by replacing the background display unit. In addition, since it is possible to combine favorite backgrounds, it also helps to enhance entertainment.
[0039]
According to the fifth aspect of the present invention, the present invention can be easily applied to a vehicle display device in which a real image display and a virtual image display are combined. That is, the present invention is very versatile.
[Brief description of the drawings]
FIG. 1 is a sectional view showing an internal structure of a vehicle display device according to an embodiment of the present invention.
FIG. 2 is a diagram for explaining the principle of stereoscopic display according to the vehicle display device of one embodiment of the present invention.
FIG. 3 is a block diagram showing a circuit configuration related to lighting control of each display.
FIG. 4 is a diagram showing a display example when the vehicle is running using gasoline as a power source in the vehicle display device according to the embodiment of the present invention.
FIG. 5 is a diagram showing a display example when the vehicle is running using a battery as a power source in the vehicle display device according to the embodiment of the present invention.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 vehicle display device 11 real image display unit 12 main unit 13 background display unit 21 real image display 22 virtual image display 21a real image 22a, 23a virtual image 23 background display 31, 33 half mirror 32 mirror

Claims (5)

A main indicator for displaying information about the vehicle;
A background indicator capable of selectively displaying a plurality of background information;
A reflecting member that reflects the information displayed on the main display and the background information displayed on the background display toward a predetermined eye range,
According to a predetermined control signal, background information switching means for switching the background information displayed on the background display,
The distance from the display surface of the background display to the reflective member is different from the distance from the display surface of the main display to the reflective member,
A display device for a vehicle, comprising: The display device for a vehicle according to claim 1,
The distance from the display surface of the background display to the reflection member is longer than the distance from the display surface of the main display to the reflection member,
Higher priority information is displayed on the main display, and lower priority information is displayed on the background display.
A display device for a vehicle, comprising: The vehicle display device according to claim 2,
Installed in a hybrid vehicle that runs on battery or gasoline as a power source,
The control signal is a traveling mode signal indicating whether the hybrid vehicle is traveling using a battery as a power source, or traveling using gasoline as a power source,
The background display emits light of different colors depending on whether the vehicle is running with a battery as a power source or running with gasoline as a power source.
A display device for a vehicle, comprising: The vehicle display device according to claim 3,
The background display is housed in a detachable background display unit in a housing unit in which the main display is housed.
A display device for a vehicle, comprising: The display device for a vehicle according to claim 4,
The reflection member is a half mirror,
On the back surface of the half mirror, a sub-display for emitting and displaying information on a vehicle different from the main display is further arranged.
A display device for a vehicle, comprising:

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