JP6908432B2 - Vehicle information display device - Google Patents

Description

The present invention relates to a vehicle information display device.

Vehicles such as automobiles have an instrument panel installed in front of the vehicle interior, and the instrument panel for vehicles such as meter display devices is located in the driver's seat side and in the center of the vehicle width direction. An information display device is provided.

On the other hand, as an auxiliary vehicle information display device, there is also a head-up display device capable of displaying a virtual image in front, which is provided separately from the meter display device (see, for example, Patent Document 1).

Jikkenhei 3-114434 Gazette

However, in the vehicle information display device described in Patent Document 1, the meter display device and the head-up display device are not particularly related to each other. Therefore, these have to recognize the display individually and obtain the necessary information from each, which is troublesome.

Therefore, the main object of the present invention is to solve the above-mentioned problems.

In order to solve the above problems, the present invention
In a vehicle information display device in which a meter display device and a head-up display device are separately provided inside the instrument panel.
The head-up display device is capable of displaying a virtual image behind the front window glass located in front of the device.
The meter display device shall be capable of displaying a virtual image different from the virtual image of the head-up display device in the back of the instrument panel.
The virtual image behind the front window glass by the head-up display device and another virtual image behind the instrument panel by the meter display device are displayed in relation to each other and are displayed side by side.

According to the present invention, according to the above configuration, another virtual image by the meter display device can be arranged vertically in relation to the virtual image of the head-up display device.

It is an overall side view of the vehicle information display device which concerns on this embodiment. It is a figure which shows the state of the virtual image of FIG. It is a side view of the mirror which has a stepped part. It is an enlarged view of the part A of FIG. It is a figure which shows the state which arranged the virtual image of a head-up display device, and another virtual image by a meter display device up and down. It is a figure which shows the state which the virtual image of a head-up display device and another virtual image by a meter display device are arranged vertically and connected. It is a figure which shows another example of the virtual image of a head-up display device. It is a figure which shows the control system of the information display device for a vehicle. It is a figure which shows the example of the information display by the vehicle information display device which concerns on modification 1. FIG. It is a figure which shows the example of the information display by the vehicle information display device which concerns on modification 2.

Hereinafter, the present embodiment will be described in detail with reference to the drawings.
1 to 8 are for explaining this embodiment. In the figure, the vehicle front-rear direction is X, the vehicle width direction is Y, and the vertical direction is Z.

(Example 1)
<Structure> The configuration of this embodiment will be described below.

As shown in FIG. 1, in a vehicle such as an automobile, a front window glass 1 is installed in front of the vehicle interior. An instrument panel 2 is installed below the front window glass 1. A vehicle information display device such as a meter display device 3 is provided in a driver's seat side portion of the instrument panel 2 or a central portion in the vehicle width direction.

Then, as the vehicle information display device, a head-up display device 5 is provided inside the instrument panel 2 in addition to the meter display device 3 described above. The head-up display device 5 is capable of displaying the virtual image 4 behind the front window glass 1 located in front (of the occupant).

Here, the front window glass 1 is tilted backward so as to move toward the rear of the vehicle as it advances upward.

The meter display device 3 is housed and installed in the meter hood 6 provided on the instrument panel 2 so as not to be affected by outside light (light from the outside of the vehicle). The meter display device 3 can be provided with at least one of a vehicle speedometer, a tachometer, a fuel fuel gauge, a water temperature gauge, and the like. Further, the meter display device 3 may be provided with a display panel 7 or the like capable of displaying the image 7a. The display panel 7 can be a liquid crystal panel, an organic EL panel, or the like.

The head-up display device 5 reflects the image 8a of the display panel 8 provided inside to the reflecting portion 9 installed above the instrument panel 2, and reflects the image 8a in front of the reflecting portion 9 (behind the front window glass 1). ) Is formed into an image of the virtual image 4. The display panel 8 can be a liquid crystal panel, an organic EL panel, or the like.

The instrument panel 2 is provided with an opening 2a for passing the image 8a of the display panel 8. Further, the reflective portion 9 can be the front window glass 1. When the reflective portion 9 is the front window glass 1, a reflective film 9a having a required reflectance is provided on the front surface of the front window glass 1. Further, the reflective portion 9 may be a reflector (combiner) provided on the front side (passenger side or the rear of the vehicle) of the front window glass 1. The reflector is installed at a position around the front edge of the opening 2a provided in the instrument panel 2. The virtual image 4 is displayed in a state of substantially overlapping the external landscape seen through the front window glass 1.

In contrast to the above basic configuration, this embodiment is provided with the following configuration.

(1) The meter display device 3 can display a virtual image 21 different from the virtual image 4 of the head-up display device 5 behind the instrument panel 2.
Then, the virtual image 4 behind the front window glass 1 by the head-up display device 5 and another virtual image 21 behind the instrument panel 2 by the meter display device 3 are displayed so as to be related to each other and arranged one above the other. Display (see FIGS. 5 and 6).

Here, the meter display device 3 is at least in a position where the image 7a of the display panel 7 installed in the instrument panel 2 can be visually recognized by the occupant in the meter hood 6 either directly or through the mirror 25. It is assumed that the half mirror 26 (reflecting unit 27) installed is projected and reflected. The mirror 25 is installed in the middle of the optical path 28 from the display panel 7 to the half mirror 26. As a result, another virtual image 21 is formed in the back (front) of the half mirror 26 (installed on the instrument panel 2).

The head-up display device 5 is installed at a position on the front side of the meter display device 3 inside the instrument panel 2. The image 8a of the display panel 8 in the head-up display device 5 is directly reflected by the reflecting portion 9 (in this case, the front window glass 1). By directly reflecting the image 8a of the display panel 8 to the reflecting portion 9 in this way, the brightness of the virtual image 4 can be improved because the optical components interposed between the images 8a are eliminated. At this time, the display panel 8 of the head-up display device 5 is installed at a position substantially symmetrical with the virtual image 4 with respect to the front window glass 1.

Then, the virtual image 4 by the head-up display device 5 is displayed on the upper side, and another virtual image 21 by the meter display device 3 is displayed on the lower side.

"Indications that are related to each other" are the relevance and continuity of the contents. Further, "displaying side by side" means the continuity of arrangement.

(2) At this time, the lower end portion 4a of the virtual image 4 by the head-up display device 5 and the upper end portion 21a of another virtual image 21 by the meter display device 3 are located at the same position or close to each other with respect to the vehicle front-rear direction X. Place in position.

Here, in order to arrange the imaginary image 4 by the head-up display device 5 and another imaginary image 21 by the meter display device 3 at the same position or a position close to the vehicle front-rear direction X, the head-up display device The optical path 35 from the display panel 8 of 5 to the front window glass 1 (reflecting unit 9) and the optical path 28 from the display panel 7 of the meter display device 3 to the half mirror 26 (reflecting unit 27) have substantially the same optical path length. (Optical path length of optical path 35 = optical path length of optical path 28).

(3) Then, as shown in FIG. 2, the virtual image 4 by the head-up display device 5 is arranged vertically (vertical virtual image).
Further, another virtual image 21 by the meter display device 3 is arranged in a sideways lying state (horizontal virtual image).
Then, the upper part of another virtual image 21 by the meter display device 3 is formed into a bent shape that rises while gradually bending from the horizontal direction to the vertical direction toward the lower end portion 4a of the virtual image 4 by the head-up display device 5. Alternatively, it is referred to as a bent virtual image portion 41).

Here, the portrait orientation and the landscape orientation are relative, and in this case, another virtual image 21 by the meter display device 3 is lying sideways as compared with the virtual image 4 by the head-up display device 5. I just need to be there. The vertically oriented virtual image 4 stands at an angle of 45 ° to 90 ° with respect to the horizontal (or slightly tilted forward) when viewed from the side (vehicle width direction Y) so as to face the driver's seat occupant. It is preferable to do so. Further, it is preferable that the other sideways virtual image 21 is lying at an angle of 45 ° or less with respect to the horizontal (in a state of being greatly tilted forward) when viewed from the side (vehicle width direction Y). However, the above angle does not have to be exact.

The bent portion (bent virtual image portion 41) of another virtual image 21 is convex toward the front of the vehicle when viewed from the side. The bent virtual image portion 41 is preferably provided with a gently curved or rounded portion. Further, it is preferable that the upper portion of the bent virtual image portion 41 (the upper end portion 21a of another virtual image 21) is aligned at substantially the same angle as the lower end portion 4a of the virtual image 4.

(4) As shown in FIGS. 3 and 4, the meter display device 3 has a stepped shape for partially bending the upper part of another virtual image 21 in the middle of the optical path 28 of another virtual image 21. A mirror 25 having a portion 51 is provided.

Here, in the mirror 25 having the stepped portion 51, the curved portion for bending the upper part of another virtual image 21 is approximated by the fine linear reflecting surfaces 51a to 51g. There is.

(5) As shown in FIGS. 5 and 6, the virtual image 4 produced by the head-up display device 5 is referred to as a distant view image 61. Alternatively, as shown in FIG. 7, the virtual image 4 by the head-up display device 5 is set as the distant information 62.
Then, as shown in FIGS. 5 and 6, another virtual image 21 by the meter display device 3 is referred to as a near view image 63.

Here, the distant view image 61 can be, for example, a traveling route 72 to the destination 71. The distant view image 61 can display related information such as the distance 73 to the destination 71 and the arrival time 74. In addition, figures 75a, 75b and the like such as arrows indicating the traveling direction can be displayed on the traveling path 72.

Further, the distance information 62 in FIG. 7 displays, for example, the vehicle speed 76 in the center, and around the vehicle speed 76, the distance 73 to the destination 71, the distances 73b to 73d to the main relay points, and each relay. Figures 75a to 75c related to points can be displayed. In this case, the figures 75a to 75c related to the relay point are characters or figures (75c) indicating the entrance / exit of the priority road, and figures (75a, 75b) such as arrows indicating the traveling direction. Further, these displays are divided on both sides of the vehicle speed 76 so that the one near the current position is on the lower side and the one far from the current position is on the upper side.

On the other hand, the foreground image 63 can be, for example, a front road 82 or an adjacent road around the own vehicle 81. In the foreground image 63, related information such as another vehicle (preceding vehicle 83a or following vehicle 83b), a signal 84, or a sign 85 can be displayed.

Then, the near view image 63 of the meter display device 3 is used as the main image, and the distant view image 61 and the distant information 62 of the head-up display device 5 are used as sub images. When displaying the distant view image 61, it is preferable that the lower part of the distant view image 61 and the upper part of the near view image 63 have the same road width in order to provide continuity in the display.

Note that FIG. 8 shows a control system of the vehicle information display device. Vehicle information display devices include the meter display device 3 (display panel 7) described above, a head-up display device 5, a center display device 91 provided at the center position of the instrument panel 2 in the vehicle width direction Y, and the like. There is.

The vehicle information display device described above is controlled by the display control device 92.

The display control device 92 includes, for example, a (car) navigation device 93a, a front camera 93b, a front radar 93c, a rear side camera 93d, a rear side radar 93e, a road-to-vehicle communication device 93f, and vehicle-to-vehicle communication. Various information from the surrounding environment detection device such as the device 93g and the traffic information communication device 93h can be input, appropriately synthesized, and displayed on the vehicle information display device described above.

In this example, the vehicle information display device is provided for the autonomous driving vehicle, and the information from the above-mentioned surrounding environment detection device is sent to the automatic driving device 94 of the autonomous driving vehicle. There is. The automatic driving device 94 can set the traveling mode of the automatic driving vehicle based on this information. The above-mentioned traveling mode is sent to the display control device 92. However, the vehicles on which the vehicle information display device can be installed are not limited to the above-mentioned self-driving vehicles.

<Action> The action of this example will be described below.

In the meter display device 3, the image 7a of the display panel 7 is reflected by the half mirror 26 (reflection unit 27) installed at a position visible to the occupant in the meter hood 6 either directly or through the mirror 25. It has become like. As a result, another virtual image 21 is formed in the back (front) of the half mirror 26 (installed on the instrument panel 2).

Further, in the head-up display device 5, the image 8a of the display panel 8 is directly reflected by the reflecting portion 9 (in this case, the front window glass 1). As a result, the virtual image 4 is formed in the back (front) of the front window glass 1.

Then, another virtual image 21 by the meter display device 3 and the virtual image 4 by the head-up display device 5 are displayed vertically.

<Effect> According to this embodiment, the following effects can be obtained.

(Effect 1) The virtual image 4 behind the front window glass 1 by the head-up display device 5 and another virtual image 21 behind the instrument panel 2 by the meter display device 3 are displayed vertically and arranged side by side. displayed.

As a result, the virtual image 4 by the head-up display device 5 can be connected to the upper side of another virtual image 21 by the meter display device 3 and collectively displayed as a display related to the display of the meter display device 3. become able to. That is, it is possible to obtain an effect as if the display of the meter display device 3 is enlarged. At the same time, it is possible to obtain a display with a sense of unity, which is a size that cannot be obtained by only one head-up display device 5. That is, it is possible to obtain an effect as if the display of the head-up display device 5 is enlarged.

If the same display as described above is to be performed with only one head-up display device 5, the head-up display device 5 needs to be considerably enlarged, which is structurally disadvantageous.

Moreover, in general, the head-up display device 5 has problems such as securing the brightness of the display against external light, securing heat dissipation (by increasing the brightness), and securing an installation space (for improving heat dissipation). The larger the head-up display device 5, the more serious these problems become. Therefore, the realization of the large-sized head-up display device 5 is accompanied by considerable difficulty.

Therefore, a part of the above-mentioned display is covered with the instrument panel 2 (meter hood 6) to replace the meter display device 3 (display panel 7) which is less susceptible to the influence of external light. .. By doing so, the meter display device 3 has a high resolution, and sufficient visibility can be ensured (clearly visible) even if the brightness of the display is lowered. Therefore, the brightness of the display can be ensured. It is structurally advantageous because it can alleviate problems such as securing heat dissipation and securing installation space.

That is, by connecting and integrating the virtual image 4 by the head-up display device 5 and another virtual image 21 by the meter display device 3, it is possible to easily realize a large-scale display.

Then, the virtual image 4 behind the front window glass 1 by the head-up display device 5 and another virtual image 21 behind the instrument panel 2 by the meter display device 3 are integrated in terms of arrangement and content. It is possible to seamlessly acquire the necessary information by visually recognizing the two as if necessary.

At this time, since the two virtual images 4 and 21 are made visible straddling between the position behind the front window glass 1 and the position behind the instrument panel 2, the display position as a whole can be kept low. , It becomes easier to move the line of sight in the vertical direction, and it is possible to make it difficult to feel fatigue.

On the other hand, for example, when the two virtual images 4 and 21 are both visually recognized at the position behind the front window glass 1, the overall display position is high, so that the two virtual images 4 and 21 are always up and down at a high position. It is necessary to move the line of sight in the direction, and there is a high possibility that a feeling of fatigue is likely to be felt.

(Effect 2) The lower end 4a of the virtual image 4 by the head-up display device 5 and the upper end 21a of another virtual image 21 by the meter display device 3 are arranged at the same position or close to each other with respect to the vehicle front-rear direction X. did. As a result, the virtual image 4 by the head-up display device 5 and another virtual image 21 by the meter display device 3 can be reasonably displayed as one vertically continuous display. Further, when visually recognizing the virtual image 4 by the head-up display device 5 and another virtual image 21 by the meter display device 3 as if going back and forth, the focus movement can be reduced.

On the other hand, the lower end 4a of the virtual image 4 by the head-up display device 5 and the upper end 21a of another virtual image 21 by the meter display device 3 are arranged at the same position or close to the vehicle front-rear direction X. If this is not done, the continuity of the display will be lost and a sense of incongruity will easily occur. Therefore, the virtual image 4 by the head-up display device 5 and another virtual image 21 by the meter display device 3 are combined into one vertically continuous display. It becomes difficult to show. Further, since the focus shift occurs between the virtual image 4 by the head-up display device 5 and another virtual image 21 by the meter display device 3, it becomes difficult to visually recognize. That is, the instantaneous readability deteriorates.

(Effect 3) The virtual image 4 by the head-up display device 5 was arranged vertically. As a result, the virtual image 4 of the head-up display device 5 located on the upper side can be seen facing the occupant, so that the virtual image 4 of the head-up display device 5 can be easily visually recognized.

Further, another virtual image 21 by the meter display device 3 was arranged in a state of lying sideways. As a result, another virtual image 21 by the meter display device 3 located on the lower side can be given a sense of depth.

Then, by connecting the virtual image 4 of the head-up display device 5 in the vertical orientation and another virtual image 21 in the meter display device 3 in the horizontal orientation, the display can be made three-dimensional.

At this time, the upper part of another virtual image 21 by the meter display device 3 is bent toward the lower end 4a of the virtual image 4 by the head-up display device 5 while gradually bending from the horizontal direction to the vertical direction. As a result, the boundary portion between the virtual image 4 of the head-up display device 5 oriented vertically and another virtual image 21 of the meter display device 3 oriented horizontally is smoothly connected and integrated so as not to cause a visual discomfort. Can be transformed into.

(Effect 4) In the meter display device 3, a mirror 25 having a (fine) stepped portion 51 was arranged in the middle of the optical path 28 of another virtual image 21. As a result, the upper part of another virtual image 21 by the meter display device 3 can be approximated by fine linear reflecting surfaces 51a to 51g to be partially bent.

As a result, the other virtual image 21 can be deformed into a bent shape with high accuracy, the distortion of the other virtual image 21 can be suppressed, and the mirror 25 having the stepped portion 51 can be easily and easily formed. It can be manufactured at low cost and has good reproducibility.

(Effect 5) The virtual image 4 by the head-up display device 5 is designated as a distant view image 61 or distant information 62 (including information to the destination), and another virtual image 21 by the meter display device 3 is designated as a near view image 63. As a result, the near view image 63 by the meter display device 3 becomes the main image, and the display is combined so that the distant view image 61 or the distant information 62 by the head-up display device 5 becomes the sub image. Images (virtual image 4 and another virtual image 21) that are related or continuous in content up to (or the destination) can be intuitively understood centering on the display of the meter display device 3 (near view image 63). It can be integrated by connecting it to a state where it is easy to see.

On the other hand, the virtual image 4 by the head-up display device 5 (affected by the external light) is used as the main image (for example, the foreground image 63), and another virtual image 21 by the meter display device 3 (which is not easily affected by the external light) is used. When is set as a sub image (for example, a rear image), the visibility of the display as a whole is lowered, the rear image becomes conspicuous, and the line of sight to the destination is not clear. There is a high possibility that it will be difficult to use.

Moreover, the stereoscopic effect of the display can be enhanced by arranging the foreground image 63 by the meter display device 3 which is the main image in a sideways lying state.

Then, for example, the virtual image 4 by the head-up display device 5 is made into a distant view image 61 such as a traveling path 72 to the destination 71, a distant information 62 which is made easy to understand by modeling this, and another by the meter display device 3. By displaying the virtual image 21 as a near view image 63 of the front road 82 around the own vehicle 81, the front road 82 and the route to the destination 71 are displayed side by side, the types that have been displayed separately so far are different. A plurality of pieces of information will be integrated into one in relation to each other, and the situation of the front road 82 around the own vehicle 81 (other vehicles (preceding vehicle 83a and following vehicle 83b), signal 84, sign 85, etc.). In addition, all the conditions of the travel route 72 to the destination 71 (distance 73 to the destination 71, arrival time 74, etc.) can be recognized at once. Therefore, the vehicle information display device can display a display with an unprecedented expanse, and can be a versatile and highly functional yet simple, easy-to-use, and highly convenient one.

(Modification example 1)
In addition, in order to enhance the relevance of the virtual image 21 and the virtual image 4, the information indicating the traveling route (traveling path 72 of the virtual image 4) may be displayed in the virtual image 21 as well. FIG. 9 shows an example of information display by the vehicle information display device according to the first modification. As shown in FIG. 9, by overlaying the traveling path 72 on the virtual image 21 and displaying it, the virtual image 21 and the virtual image 4 can be displayed with further continuity and can be displayed more related to each other.

(Modification 2)
In the above embodiment, the two display images (virtual image 21 and virtual image 4) are displayed by the meter display device 3 and the head-up display device 5, respectively. For example, it may be displayed by the meter display device 3. In the following, an example of displaying a composite display image in which these display images (display image 21b, display image 4b) are put together by the meter display device 3 will be shown.

As shown in FIG. 10, the composite display image displayed in the modified example is displayed by the display image 21b corresponding to the virtual image 21 displayed by the meter display device 3 in FIGS. 5 and 6 and the head-up display device 5. The display image 4b corresponding to the virtual image 4 that has been formed is included. The display image 21b includes information on the own vehicle 81 and the front road 82 around the own vehicle 81. On the other hand, the display image 4b includes information such as the destination 71, the arrival time 74, and the figures 75d and 75e related to the relay point.

Here, the display image 21b and the display image 4b are generated by separate and independent programs based on at least a part of the information detected by the surrounding environment detection device. Specifically, the display image 21b is generated based on the information detected by the front camera 93b, the front radar 93c, the rear side camera 93d, the rear side radar 93e, the road-to-vehicle communication 93f, the vehicle-to-vehicle communication 93g, and the like. On the other hand, the display image 4b is generated based on the information detected by the navigation device 93a, the traffic information communication 93h, and the like. In order to display the display images separately generated in this way so as to be related to each other, the meter display device 3 displays a display image in which the traveling path 72b of the display image 4b is overlaid on both display images. Specifically, as shown in FIG. 10, the traveling path 72b is overlaid and displayed on the portion of the own vehicle 81 and the front road 82 around the own vehicle 81. By doing so, the information related to the traveling own vehicle 81 and the front road 82 around it is smoothly and continuously connected to the traveling path 72b of the display image 4b, and these are connected to the driver's seat occupants. Can be recognized as information related to each other.

Although the examples have been described in detail with reference to the drawings, the examples are merely examples. Therefore, the present invention is not limited to the examples, and it goes without saying that the present invention is included in the present invention even if there is a design change or the like within a range that does not deviate from the gist. Further, for example, when each embodiment includes a plurality of configurations, it goes without saying that a possible combination of these configurations is included even if there is no particular description. Further, when a plurality of examples and modifications are disclosed, it goes without saying that possible combinations of configurations straddling these examples are included even if there is no particular description. Further, it goes without saying that the configuration depicted in the drawings is included even if there is no particular description. Furthermore, when there is a term such as "etc.", it is used to mean that it includes the equivalent. In addition, when there are terms such as "almost", "about", and "degree", they are used to mean that they include those with a range and accuracy that are generally accepted.

1 Front window glass 2 Instrument panel 3 Meter display device 4, 4b Virtual image 4a Lower end 5 Head-up display device 21, 21b Another virtual image 21a Upper end 25 Mirror 28 Optical path 51 Stepped part 61 Far view image 62 Far information 63 Near view Image X Vehicle front-rear direction

Claims (4)

In a vehicle information display device in which a meter display device and a head-up display device are separately provided inside the instrument panel.
The head-up display device is capable of displaying a virtual image behind the front window glass located in front of the device.
The meter display device shall be capable of displaying a virtual image different from the virtual image of the head-up display device in the back of the instrument panel.
The virtual image behind the front window glass by the head-up display device and another virtual image behind the instrument panel by the meter display device are displayed side by side in a display that is related to each other.
The virtual image produced by the head-up display device is arranged vertically.
Another virtual image from the meter display device is placed sideways while lying down.
The upper part of another virtual image by the meter display device is bent toward the lower end of the virtual image by the head-up display device while gradually bending from the horizontal direction to the vertical direction.
The meter display device comprises a mirror having a stepped portion in the middle of the optical path of another virtual image for partially bending the upper part of the other virtual image.
An information display device for vehicles. In the vehicle information display device according to claim 1,
A vehicle information display characterized in that the lower end of the virtual image by the head-up display device and the upper end of another virtual image by the meter display device are arranged at the same position or close to each other in the front-rear direction of the vehicle. Device. In the vehicle information display device according to claim 1 or 2.
The virtual image produced by the head-up display device is a distant view image or distant information.
An information display device for a vehicle, wherein another virtual image by the meter display device is a foreground image. In the vehicle information display device according to any one of claims 1 to 3.
An information display device for a vehicle, characterized in that information indicating a traveling route is overlaid on a virtual image by the head-up display device and another virtual image by the meter display device.

Images