JP3194024B2 - Information 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 vehicle information display device for displaying vehicle information such as vehicle guidance and outside conditions.

[0002]

2. Description of the Related Art Conventionally, an image of an intersection in front of a vehicle is displayed on a screen in order to display guidance for driving a vehicle.
In the case where the directions of guidance such as turning left and right at the intersection are indicated by arrows, the images are displayed in perspective in order to give a three-dimensional effect to the display contents on the screen,
A pseudo three-dimensional image is displayed (see Japanese Patent Application Laid-Open No. 63-111100).

[0003] Conventionally, if necessary, a shield plate or a looper is manually pulled out of a screen portion installed in a vehicle compartment for displaying vehicle information, as needed, so that the display content of the screen can be viewed from the passenger seat. However, there is a vehicle information display device which can be invisible from the driver's seat (see Japanese Patent Application Laid-Open No. 62-9498).

[0004]

The problem to be solved is that if the image projected on the screen is displayed in perspective to give a three-dimensional effect, for example, when an image in front of the vehicle is displayed, That is, it is impossible to accurately grasp the sense of distance in the front area and to display guidance guidance at a three-dimensional intersection or the like with a sufficient three-dimensional feeling.

[0005] Further, if the shield plate or the looper is manually pulled out so that the display contents of the screen cannot be seen from the driver's seat, even if the vehicle is running, the shield plate or the looper is pulled out. Otherwise, the driver can always see the display contents of the screen.

[0006]

According to the present invention, a pseudo three-dimensional image is not displayed by a two-dimensional image, but an occupant generates different left and right viewpoint images for left and right eyes, respectively. The left and right viewpoint images as vehicle information obtained by a video camera or obtained by computer graphics are alternately arranged in pixel units and synthesized so that a stereo image as vehicle information can be observed. The composite image is displayed on a screen, and the composite image displayed on the screen is separated into left and right viewpoint images by a slit barrier provided on the front surface of the screen.

[0007] The left and right viewpoint images for the driver's seat and the left and right viewpoint images for the passenger's seat are alternately arranged in a pixel-by-pixel sequence and synthesized, from the driver's seat and the passenger's seat, respectively. The same stereo image can be seen.

The present invention also provides a driver's seat for left and right viewpoints.
Each image of the front passenger seat and each image for the left and right viewpoints
The driver's seat and the passenger seat.
So that they can see stereo images
To detect that the vehicle is running, and respond to the detection.
The left and right images for the driver's seat are left blank.
To be combined with the left and right viewpoint images for the passenger seat.
When the vehicle is in a running state,
The teleo image cannot be seen, and only the front passenger seat
The image can be viewed .

Further, the present invention is particularly applicable to stereo images.
Not for vehicles, but for vehicles such as vehicle guidance, outside conditions, etc.
Images related to information shall be for driver's seat and passenger's seat.
After having synthesized sequentially arranged alternately in Teso respectively pixel units
To display the composite image on the screen,
The slit barrier on the front of the lean
The composite image displayed on the lean is displayed for the driver's seat and the assistant
Separately display each 2D image for seats
The same vehicle information image from the driver's seat and the passenger seat
You can see each .

[0011]

FIG. 1 shows the basic structure of a vehicle information display device according to the present invention.
An image synthesizer 1 that reads the respective image data LID and RID of the image for the right viewpoint and alternately arranges and synthesizes the respective images with linear pixel columns in the same direction.
And a stereo display 2 for displaying the synthesized image separately for left and right viewpoints so as to be observed.
And a reflector 3 for reflecting the stereo image displayed on the display 2 in the direction of the position O of the occupant's eyes in the vehicle cabin.

In the configuration shown in FIG. 2, a lens system 4 for enlarging a stereo image displayed on the display 2 at a predetermined magnification is provided between the stereo display 2 and the reflector 3. I have.

The lens system 4 may be provided with a zoom function so that the zoom adjustment can be performed manually or in response to an operation command under the control of a microcomputer (not shown).

As the stereo display 2, FIG.
As shown in FIG. 1, a slit barrier 23 having a slit having a width corresponding to each linear pixel column in a composite image displayed on the display surface is disposed on the front surface of the liquid crystal display 21. A parallax barrier type is used in which a left viewpoint image and a right viewpoint image are separated from the composite image displayed on the liquid crystal display 21 through the slit barrier 23 so that a stereo image can be observed.

The slit barrier 23 is formed by displaying a stripe image serving as a barrier on a liquid crystal panel such that a slit is formed between barriers.

On the liquid crystal display 21, linear pixel rows LB1, LB2, LB3,...
And linear pixel rows RB1, R in the right viewpoint image
.. Are displayed in a state where B2, RB3,... Are alternately arranged.

By viewing the display surface from a predetermined position through the slit barrier 23,
In the left eye E (L), only the linear pixel rows LB1, LB2, LB3,... In the left viewpoint image can be seen.
The right eye E (R) can see only the linear pixel rows RB1, RB2, RB3,... In the right viewpoint image.
Thereby, a stereo image can be observed.

Here, for example, the liquid crystal display 21 displays, for example, a linear pixel array LBn (a) (n = 1, 2, 3,...) In the left-view image for the driver's seat and a linear pixel array in the right-view image. Pixel line RBn (a) and the linear pixel line LBn (b) in the left-viewpoint image for the passenger seat
And linear pixel row RBn in the image for the right viewpoint
(B) image synthesis is performed in a state where the images are alternately and sequentially arranged,
A stereo image can be observed by a person A sitting in the driver's seat and a person B sitting in the passenger's seat.

In this case, if the image for the driver's seat and the image for the passenger's seat are synthesized using the same image, the person A sitting in the driver's seat and the person B sitting in the passenger's seat can use the same image. The same stereo image can be observed in each case.

If the image for the driver's seat and the image for the passenger's seat are synthesized using different images, the person A sitting in the driver's seat and the person B sitting in the passenger's seat can be synthesized.
Different stereo images can be observed.

In particular, according to the present invention, means (not shown) for detecting that the vehicle is running is provided.
When the detection signal S is given to the microcomputer 5, under the control of the microcomputer 5,
The left and right viewpoint image data for the driver's seat are left blank, and when the vehicle is in a running state, the stereo image cannot be viewed from the driver's seat, and only the passenger's seat can be viewed. Is not possible.

However, when the vehicle is in a running state, the shield plate and the looper are not manually pulled out as in the prior art so that the image cannot be viewed from the driver's seat as necessary. By the processing, the stereo image for the driver's seat itself becomes blank, so that the image of the vehicle information cannot necessarily be seen from the driver's seat.

As means for detecting that the vehicle is in a running state, for example, a speed sensor or a gear shift position sensor of the vehicle is used.

Further, according to the present invention, a multi-view system is used so that stereo images can be observed from a plurality of different directions. Even if the position where the surface is viewed is shifted, a stereo image corresponding to the position can be viewed.

When the head of the person A sitting in the driver's seat is at an inappropriate position for driving the vehicle, an image notifying the fact can be seen. When the head of the person A sitting in the seat is not at an appropriate position for driving the vehicle, the image may not be viewed.

The respective images for the left and right viewpoints are, as vehicle information, a vehicle-mounted stereo twin-lens video camera 6 driven under the control of the microcomputer 5 (or juxtaposed according to the left and right eyes of a human). An image captured outside the vehicle by the two video cameras obtained is used.

The data of each image for the left and right viewpoints picked up by the video camera 6 is stored in the image processing device 7.
The data LID and RID of the left and right viewpoint images subjected to the image processing are supplied from the microcomputer 5 to the image synthesizer 1 after performing processes such as contrast enhancement and edge enhancement. Can be

Each image data LI for left and right viewpoints
As D and RID, image data such as travel guidance and traffic information of a vehicle by computer graphics stored in an image memory in the microcomputer 5 is used as vehicle information.

The microcomputer 5 selectively outputs image data LID, RID of either a captured image of the video camera 6 or an image of computer graphics in response to an operation command from the operation input unit.

The reflector 3 reflects a stereo image displayed on the stereo display 2 in the direction of the eye position of the person A sitting in the driver's seat, for example, and can project the stereo image toward the windshield of the vehicle. Thus, it is installed between the person A sitting in the driver's seat and the windshield 8 (see FIGS. 4 and 5).

Specifically, the reflection plate 3 is attached to the surface of the windshield 8 or, when the windshield 8 is a laminated glass, provided at a portion where the windshield 8 is laminated.

The reflection plate 3 is provided so that the driver's view is not obstructed when the occupant, particularly the vehicle, travels.
Laminating an optical interference film on a half mirror or a transparent substrate that reflects only light of a specific color system from the surface of the stereo display 2 and transmits other light (a windshield may be used). A light transmissive mirror such as an optical interference mirror formed by the above method is used.

Alternatively, the reflection plate 3 having no light transmittance may be provided at a place where the visibility of the driver is not obstructed when the vehicle is running.

FIG. 5 shows an example of the installation state of the stereo display 2 and the reflector 3 in the vehicle. Here, the stereo display 2 is stored in the dashboard portion 9 such that the display surface is exposed upward. Then, the stereo image I displayed on the display surface is reflected in the direction of the driver's eyes by the reflector 3, whereby the driver A is moved to a position on the windshield with the reflector 3 symmetrical. Stereo image I
Can be seen.

In the above-mentioned structure, for example, a video camera 6 for night vision is used to capture an image of the front of the vehicle, and a stereo image obtained thereby is viewed from the driver as an actual scene ahead. If the image is displayed on the windshield so as to overlap with, the information of the front view at night or in a tunnel can be provided to the driver in accordance with the actual scene.

At this time, the driver can stereoscopically view an image captured in front of the vehicle, which is displayed on the windshield, in the same state as viewing the actual scene. For example, as shown in FIG. It is possible to accurately grasp the sense of distance to an obstacle (person) and to recognize a situation outside the vehicle such as a three-dimensional intersection ahead or a slope with a sufficient three-dimensional feeling.

Further, the microcomputer 5 can be used, for example, to measure the position of the own vehicle by GPS, determine the current position on the map, and display the position of the own vehicle on the map while using the GPS. When used as a main computer, if the stereo image of the vehicle guidance provided by the computer graphics is displayed on the windshield so as to overlap with the actual scene ahead as seen from the driver, the actual scene ahead of the vehicle can be obtained. This makes it possible to optimally provide vehicle guidance according to the above.

For example, when the current position of the own vehicle is approaching a required intersection on a planned traveling route on a map,
In an in-vehicle navigation device in which a predetermined instruction such as right or left turn at the intersection is displayed by an arrow, as shown in FIG. It can be projected on the windshield so that it overlaps the scene of the actual intersection ahead of the user.

The information display device for a vehicle according to the present invention may display the information for a vehicle not only as a stereo image as described above but also as an ordinary two-dimensional image.

That is, in this case, the traveling guidance of the vehicle
Images related to vehicle information such as outside-the-vehicle conditions are alternately arranged and synthesized in pixel units as those for the driver's seat and for the passenger seat, and the synthesized image is displayed on the screen.
A slit barrier provided on the front of the screen separates and displays the composite image displayed on the screen into two-dimensional images for the driver's seat and the passenger's seat, respectively. In each case, it is possible to see vehicle information by a two-dimensional image.

In this case, the image for the driver's seat and the image for the passenger's seat are the same, and the same image can be seen from the driver's seat and the passenger's seat.

The image for the driver's seat is different from the image for the passenger's seat, so that different images can be seen from the driver's seat and the passenger's seat.

Further, when the vehicle is in the running state, the image for the driver's seat is not displayed when the vehicle is in the running state, so that the image cannot be seen from the driver's seat. To Or you may make it display in the position which does not obstruct a driver's visual field.

[0044]

As described above, in the vehicle information display device according to the present invention, the vehicle information such as the driving guidance of the vehicle and the situation outside the vehicle is provided.
Means for generating images for the left and right viewpoints related to the
The images for the left and right viewpoints are alternately arranged in pixels and combined.
And the composite image on the screen.
The slit barrier provided on the front of the screen
The composite image displayed on the screen
Means for separating and displaying each image for
Images for the left and right viewpoints displayed separately
To see a stereo image.
In addition, the left and right images for the driver's seat and the passenger's seat
The left and right viewpoint images are sequentially and alternately arranged in pixel units.
From the driver's seat and the passenger's seat.
The teleo image can be seen in the vehicle
Information is displayed as stereo images.
It is enough to actually follow the driving guidance of the vehicle and the situation outside the vehicle
The same image for the driver and assistant with a sense of depth and distance
Can be recognized .

Also, the vehicle information display device according to the present invention
Vehicle information such as vehicle driving guidance and outside conditions
Means for generating images for the left and right viewpoints according to
The images for the left and right viewpoints are alternately arranged in pixels and combined.
And the composite image on the screen.
The slit barrier provided on the front of the screen
The composite image displayed on the screen
Means for separating and displaying each image for
Images for the left and right viewpoints displayed separately
To see a stereo image.
In addition, the left and right images for the driver's seat and the passenger's seat
The left and right viewpoint images are sequentially and alternately arranged in pixel units.
From the driver's seat and the front passenger's seat, respectively.
You can see the image and the vehicle
Means for detecting that it is in line state, according to the detection of its
Hand to stop displaying left and right viewpoint images for driver's seat
Steps are provided so that when the vehicle is running,
A stereo image that can be viewed from the viewer
In this case, especially when the vehicle is in a running state,
Manually pull out the shield plate and looper as before
From the driver's seat to see the image as needed
Rather than trying to make
The stereo image itself is left blank, and the vehicle is
Inevitably make it impossible to see the information image
It has the advantage that it can .

Further, an information display device for a vehicle according to the present invention.
For vehicle information such as vehicle driving guidance and outside conditions
Means for generating an image relating to the
And for the passenger seat alternately in pixel units
Next, a means to combine them side-by-side
Project the image, and use the slip provided on the front of the screen.
The composite image displayed on the screen by the barrier
Into two-dimensional images for the driver's seat and the passenger's seat.
Means for displaying separately
You can see the same image from both the seat and the passenger seat
It has the advantage of being able to cut .

[Brief description of the drawings]

FIG. 1 is a block diagram showing a basic configuration example of a vehicle information display device according to the present invention.

FIG. 2 is a block diagram showing another basic configuration example of the vehicle information display device according to the present invention.

FIG. 3 is a diagram showing a basic configuration of a multi-view stereo display using a parallax barrier system.

FIG. 4 is a diagram illustrating an example of a state in which a stereo image is projected on a windshield of a vehicle.

FIG. 5 is a diagram illustrating an example of an installation state of a stereo display and a reflector in a vehicle.

FIG. 6 is a diagram showing another example of a state in which a stereo image is projected on a windshield of a vehicle.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Image synthesizer 2 Stereo display 3 Reflector 4 Lens system 5 Microcomputer 6 Video camera 7 Image processing device 8 Windshield 21 Liquid crystal display 23 Slit barrier

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification code FI H04N 13/04 G06F 15/62 (56) References JP-A-62-57392 (JP, A) JP-A-54-55114 (JP) JP-A-4-60414 (JP, A) JP-A-4-198983 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G08G 1/16 B60R 1/00 G01C 21/00 G06T 1/00 H04N 7/18 H04N 13/04

Claims (3)

(57) [Claims] 1. A means for generating respective images for left and right viewpoints relating to vehicle information such as driving guidance of a vehicle and a situation outside a vehicle, and synthesizing the left and right viewpoint images alternately in pixel units. And displaying the composite image on the screen,
Means for separating and displaying the combined image displayed on the screen into respective images for left and right viewpoints by a slit barrier provided on the front surface of the screen. , After observing the stereo image by viewing each image for the right viewpoint, each image for the left and right viewpoint for the driver's seat and the image for the passenger seat
The left and right viewpoint images are sequentially and alternately arranged in pixel units.
From the driver's seat and the passenger's seat.
An information display device for a vehicle, wherein a teleo image can be viewed . 2. A vehicle for driving guidance of a vehicle, conditions outside the vehicle, etc.
Means for generating images for the left and right viewpoints related to the information;
Left and right viewpoint images are alternately arranged in pixel units and synthesized
And displaying the composite image on the screen,
The slit barrier provided on the front of the screen
The composite image displayed on the screen
Means for separating and displaying each image for
Images for the left and right viewpoints displayed separately
To see a stereo image.
In addition, the left and right viewpoint images for the driver's seat and the passenger's seat
The left and right viewpoint images are sequentially and alternately arranged in pixel units.
From the driver's seat and the front passenger's seat, respectively.
You can see the image and the vehicle
Means for detecting that the line is in the line state, and according to the detection,
Hand to stop displaying left and right viewpoint images for driver's seat
Steps are provided so that when the vehicle is running,
The ability to see stereo images from the beginning
A vehicle information display device characterized by the above-mentioned . 3. A means for generating an image relating to vehicle information such as a vehicle guidance and a situation outside the vehicle, and a means for alternately arranging and synthesizing the images for a driver's seat and a passenger's seat in a pixel unit. And the composite image displayed on the screen, and the composite image displayed on the screen is separated into two-dimensional images for the driver's seat and the passenger's seat by a slit barrier provided on the front surface of the screen. A vehicle information display device, wherein the same image can be seen from each of a driver seat and a passenger seat.