JPH07105484A - On-vehicle information display device - Google Patents

Abstract

PURPOSE:To allow the driver to recognize drive guidance of a vehicle and a status at the outside of the vehicle in a realistic stereoscopic sense and sense of distance by observing each picture of left and right visual point resulting from a synthesis picture displayed separately on a screen with slit barrier so as to observe the picture as a stereoscopic picture. CONSTITUTION:Left right visual point picture data picked up by a video camera 6 are given to a picture processing unit 7, in which picture processing such as contrast emphasis and edge emphasis is applied to the data, the left right visual point picture data LID, RID are given from a microcomputer 5 to a picture synthesizer 1, where the data are synthesized. The synthesized picture is displayed on a screen of a display device 2 and the displayed synthesized picture is separately displayed into the left and right visual point pictures by means of a slit barrier 23 in front of the screen. Then a stereoscopic picture is observed by observing the separated pictures. Thus, the driver recognizes drive guidance of a vehicle and a status at the outside of the vehicle in a realistic stereoscopic sense and sense of distance.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicular information display device for displaying vehicular information such as driving guidance of a vehicle and conditions outside the vehicle.

[0002]

2. Description of the Related Art Conventionally, an image of a front intersection is displayed on a screen in order to provide a guidance display for driving a vehicle.
If you want to show a left or right turn guidance at the intersection with an arrow, the image is displayed in perspective in order to give a stereoscopic effect to the display content on the screen,
A pseudo three-dimensional image is displayed (see Japanese Patent Laid-Open No. 63-211100).

Conventionally, if necessary, a shield plate or a looper is manually pulled out to a screen portion installed in a vehicle compartment for displaying vehicle information, and the display content of the screen is displayed from the passenger seat. There is an information display device for a vehicle that can be seen but cannot be seen from the driver's seat (see Japanese Patent Laid-Open No. 62-9498).

[0004]

The problem to be solved is to display the image projected on the screen by the perspective method to give a stereoscopic effect. For example, when a front image of the vehicle is displayed, That is, it is not possible to accurately grasp the sense of distance in the front area and to display the guidance guidance at the intersection or the like with a sufficient three-dimensional effect.

Further, if the shielding plate or the looper is manually pulled out so that the contents displayed on the screen cannot be seen from the driver's seat, the shielding plate or the looper can be pulled out even while the vehicle is running. Without doing so, the driver can always see what is displayed on the screen.

[0006]

According to the present invention, a pseudo three-dimensional image is not displayed by a two-dimensional image, but an occupant obtains different left and right viewpoint images for the left and right eyes, respectively. In order to observe the stereo image as the vehicle information, the images for the left and right viewpoints as the vehicle information captured by a video camera or obtained by computer graphics are alternately arranged in pixel units and combined. The composite image is displayed on the screen, and the slit barrier provided on the front surface of the screen separates and displays the composite image displayed on the screen into left and right viewpoint images.

Then, 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 unit and synthesized, respectively, from the driver's seat and the passenger's seat, respectively. I am able to see stereo images.

Further, it is detected that the vehicle is in a running state, and in response to the detection, the left and right viewpoint images for the driver's seat are made blank, and the left and right viewpoint viewpoints for the passenger seat are set. By combining with the image, when the vehicle is in a traveling state, the stereo image cannot be seen from the driver's seat, and the stereo image can be seen only from the passenger seat.

In the present invention, although not particularly as a stereo image, images relating to vehicle information such as vehicle driving guidance and out-of-vehicle conditions are alternated pixel by pixel for driver's seat and passenger's seat. After arranging and synthesizing sequentially,
The composite image is displayed on the screen, and the slit barrier provided in front of the screen separates the composite image displayed on the screen into two-dimensional images for the driver's seat and the passenger's seat. The images of the vehicle information can be viewed from the driver's seat and the passenger's seat, respectively.

Then, it is detected that the vehicle is in the running state, and the image for the driver's seat is made blank according to the detection, and the vehicle is put in the running state by synthesizing it with the two-dimensional image for the passenger seat. In some cases, the driver's seat cannot see the image, and only the passenger seat can see the two-dimensional image.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows the basic structure of a vehicle information display device according to the present invention.
An image synthesizer 1 that reads in each image data LID and RID of the right-viewpoint image and synthesizes the images by arranging them alternately with line-shaped pixel rows in the same direction.
And a stereo display 2 for displaying the composite image separately for left and right viewpoint images.
And a reflector 3 for reflecting the stereo image displayed on the display 2 in the direction of the eye position O of the occupant in the passenger compartment.

In the structure shown in FIG. 2, a lens system 4 for magnifying a stereo image displayed on the display 2 with a predetermined magnification is provided between the stereo display 2 and the reflector 3. There is.

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

The stereo display 2 is shown in FIG.
As shown in FIG. 3, a slit barrier 23 having a slit having a width corresponding to each line-shaped pixel row in the composite image displayed on the display surface is provided on the front surface of the liquid crystal display 21, and A parallax barrier system is used in which a left-view image and a right-view 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 as a barrier on a liquid crystal panel so that a slit is formed between the barriers.

On the liquid crystal display 21, line-shaped pixel rows LB1, LB2, LB3, ... In the left-viewpoint image are displayed.
And the line-shaped pixel rows RB1 and R in the right-viewpoint image
The composite image is displayed with B2, RB3, ... Arranged alternately.

By looking at the display surface from the predetermined position through the slit barrier 23,
In the left eye E (L), only the line-shaped pixel rows LB1, LB2, LB3, ... Can be seen in the left-viewpoint image,
In the right eye E (R), only the line-shaped pixel rows RB1, RB2, RB3, ... Can be seen in the right-viewpoint image,
Thereby, a stereo image can be observed.

Here, on the liquid crystal display 21, for example, a line-shaped pixel array LBn (a) (n = 1, 2, 3, ...) In the left-view image for the driver's seat and a line-shaped pixel line in the right-view image. Pixel row RBn (a) and a line-shaped pixel row LBn (b) in the left-view image for the passenger seat
And a line-shaped pixel row RBn in the right-viewpoint image
Image composition is performed so that (b) and (b) are alternately arranged in sequence.
A stereo image can be observed by a person A sitting in the driver's seat and a person B sitting in the passenger seat.

In that case, if the image for the driver's seat and the image for the passenger's seat are combined using the same image, the person A sitting in the driver's seat and the person B sitting in the passenger's seat can The same stereo image can be observed respectively.

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

Particularly, in the present invention, means (not particularly shown) for detecting that the vehicle is in a running state 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 blank, and the stereo image cannot be seen from the driver's seat when the vehicle is in a running state, and the stereo image can be observed only from the passenger seat. I am trying not to.

However, when the vehicle is in a traveling state, the image is not taken out of the driver's seat as necessary by manually pulling out the shielding plate and the looper as in the conventional case. By the processing, the stereo image for the driver's seat itself becomes blank, and the image of the vehicle information cannot be inevitably seen from the driver's seat.

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

Further, in the present invention, the stereoscopic image can be observed from a plurality of different directions so that the stereoscopic image can be observed, so that, for example, the head of the person A sitting in the driver's seat moves and the display is displayed. Even if the position at which the surface is viewed is deviated, it is possible to view the stereo image according to the position.

When the head of the person A sitting in the driver's seat is in an inappropriate position for driving the vehicle, it is possible to display an image notifying that fact, and vice versa. When the head of the person A who is sitting in the seat is not in a position suitable for driving the vehicle, the image cannot be viewed.

Each of the images for the left and right viewpoints is, as vehicle information, a vehicle-mounted stereo twin-lens video camera 6 driven under the control of the microcomputer 5 (or juxtaposed in accordance with the left and right eyes of a human being). An image obtained by capturing the outside of the vehicle by the two video cameras is used.

Data of each image for the left and right viewpoints captured by the video camera 6 is converted into image processing device 7.
Are subjected to processing such as contrast enhancement and edge enhancement, and the image-processed left and right viewpoint image data LID and RID are provided from the microcomputer 5 to the image synthesizer 1. To be

Further, each image data LI for the left and right viewpoints
As D and RID, image data such as vehicle guidance and traffic information 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 an image picked up by the video camera 6 or an image by computer graphics according to an operation command from the operation input section.

The reflector 3 can reflect the stereo image displayed on the stereo display 2 in the direction of the eyes of the person A sitting in the driver's seat and project it on 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, it is provided in the laminated portion in the windshield.

The reflector 3 is designed so as not to obstruct the occupant's view, especially when the vehicle is traveling.
Laminating an optical interference film on a half mirror or a transparent substrate (a windshield may be used) which reflects only light of a specific color system from the stereo display 2 surface and transmits other light. An optical interference mirror or the like having optical transparency is used.

Alternatively, the light-reflecting plate 3 may be provided at a position where the driver's view is not obstructed when the vehicle travels.

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 its display surface is exposed upwards. Then, the stereo image I displayed on the display surface is reflected by the reflector plate 3 in the direction of the driver's eye position, whereby the driver A is positioned at the position on the windshield with the reflector plate 3 symmetrical. Stereo image I
Can be seen.

In such a structure, for example, a video camera 6 for night vision is used to image the front of the vehicle, and a stereo image obtained thereby is seen from the driver's actual scene in front. If the image is displayed on the windshield side so as to overlap with, it becomes possible to provide the driver with information on the forward field of view at night or in a tunnel in accordance with an actual scene.

At this time, the driver can stereoscopically view the image of the front of the vehicle projected on the windshield in the same state as when looking at the actual scene. For example, as shown in FIG. It is possible to accurately grasp a sense of distance to an obstacle (person), and to recognize a situation outside the vehicle, such as a front crossing or a slope, with a sufficient sense of rest.

In addition, the microcomputer 5 is used to measure the position of the own vehicle by, for example, GPS, obtain the current position on the map, and display the position of the own vehicle on the map. When used as a main computer, if a stereo image of the vehicle guidance using the computer graphics is projected on the windshield so as to overlap with the actual scene in front of the driver, the actual scene in front of the vehicle will be displayed. It will be possible to optimally guide the vehicle guidance according to the above.

For example, when the current position of the vehicle is approaching a required intersection on the planned traveling route on the map,
In a vehicle-mounted navigation device configured to display preset directions such as right and left turns at the intersection by arrows, as shown in FIG. 6, the arrows indicating the right and left turns are used as a stereo image to drive. From the perspective of a person, it can be projected on the windshield so as to overlap with the actual scene of the front intersection.

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

That is, in this case,
Images related to vehicle information such as the condition outside the vehicle are alternately arranged in pixel units for the driver's seat and passenger's seat, and the combined image is displayed on the screen.
The slit barrier provided on the front of the screen separates the composite image displayed on the screen into two-dimensional images for the driver's seat and the passenger's seat, respectively. Make it possible to see the vehicle information in each 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 both the driver's seat and the passenger's seat.

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

Further, assuming that the vehicle is in the running state and the image for the driver's seat is not displayed in response to the detection, the image cannot be seen from the driver's seat when the vehicle is in the running state. To Alternatively, it may be displayed at a position where the driver's visual field is not obstructed.

[0044]

As described above, according to the vehicular information display device of the present invention, the vehicular information is displayed as a stereo image. The occupant can be perceived with a feeling of distance and a sense of distance. Also, not limited to stereo images,
It is possible to selectively view the same or different images from a plurality of directions at positions such as a driver's seat and a passenger's seat including a two-dimensional image, and simultaneously display different images in each direction. In this case, multiple displays of vehicle information can be made. Then, when the vehicle is in a traveling state, instead of manually pulling out the shielding plate, the looper and the like as in the conventional case so that the image cannot be viewed from the driver's seat as needed,
The image processing has an advantage that the stereo image itself for the driver's seat is left blank so that the image of the vehicle information cannot be inevitably seen from the driver's seat.

[Brief description of 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 structure of a multi-view type stereo display of a parallax barrier type.

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

FIG. 5 is a diagram showing an example of an installed 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 the windshield of the vehicle.

[Explanation 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

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[Procedure amendment]

[Submission date] August 5, 1994

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 3

[Correction method] Change

[Correction content]

[Figure 3]

Continuation of front page (51) Int.Cl. ⁶ Identification code Office reference number FI Technical display location G08G 1/09 C 7531-3H H04N 7/18 U 13/04

Claims (9)

[Claims] 1. A means for generating left and right viewpoint images relating to vehicle information such as vehicle guidance and vehicle exterior conditions, and the left and right viewpoint images are alternately arranged in pixel units and combined. And the composite image is displayed on the screen,
The slit barrier provided on the front surface of the screen is configured by means for separately displaying the composite image displayed on the screen into left and right viewpoint images, and the left and the separately displayed left and right images. A vehicle information display device characterized in that a stereo image can be observed by viewing each image for the right viewpoint. 2. 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 side by side in a pixel unit and combined, respectively, from the driver's seat and the passenger's seat, respectively. The vehicle information display device according to the above item 1, wherein a stereo image can be viewed. 3. The left and right viewpoint images for the driver seat and the left and right viewpoint images for the passenger seat are the same, and the same stereo image is viewed from the driver seat and the passenger seat, respectively. The information display device for a vehicle according to the above-described item 2, wherein the information display device for a vehicle according to the above item 2 is characterized in that 4. The left and right viewpoint images for the driver seat and the left and right viewpoint images for the passenger seat are different, and different stereo images can be seen from the driver seat and the passenger seat. The information display device for a vehicle according to the above-described item 2, wherein the information display device for a vehicle according to the above item 2 is provided. 5. A vehicle is in a traveling state by providing means for detecting that the vehicle is in a traveling state and means for stopping the display of each image for the left and right viewpoints for the driver's seat according to the detection. The vehicle information display device according to the above item 2 is characterized in that the stereo image can be viewed only from the passenger seat when the vehicle is in. 6. A means for generating an image relating to vehicle information such as a vehicle driving guidance and a condition outside the vehicle, and a means for synthesizing the images by alternately arranging them in pixel units for a driver seat and a passenger seat. And the composite image is displayed on the screen, and the slit barrier provided in 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. The information display device for a vehicle, characterized in that the images can be viewed from the driver's seat and the passenger seat, respectively. 7. The image for driver's seat and the image for passenger's seat are the same, and the same image can be seen from the driver's seat and the passenger's seat, respectively. An information display device for a vehicle according to the above description. 8. The image according to claim 6, wherein the image for the driver's seat and the image for the passenger's seat are different, and different images can be seen from the driver's seat and the passenger's seat. Vehicle information display device. 9. A means for detecting that the vehicle is in a running state, and a means for blanking an image for a driver's seat according to the detection, and only the passenger seat is provided when the vehicle is in a running state. The vehicle information display device according to the above item 6, wherein the image can be viewed from the display.