JP2006088758A - Display device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce an oversight of a camera image displayed on a display device by a driver while ensuring prescribed visibility. <P>SOLUTION: A display device 1 for a vehicle comprises a plurality of cameras 10a-10e; a plurality of display devices 12a-12c for displaying a plurality of camera images A-E picked up with the plurality of cameras 10a-10e; and a display control device 11 for selecting the camera image other than the camera image as a main image from the camera images picked up with the plurality of cameras 10a-10e along with the camera image as the main image, and displaying a sub image on the plurality of display devices 12a-12c so as to be smaller than the main image. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a display device for a vehicle that performs driving support by displaying camera images on a plurality of display devices.

  2. Description of the Related Art In recent years, there is known an apparatus that informs a driver of a situation around a vehicle by attaching a camera to an appropriate position of the vehicle, taking an image around the vehicle, and displaying the image on a display device.

As such a device, a device in which a display device is arranged on a straight line connecting the camera and the driver's eyes has been proposed (for example, see Patent Document 1).
JP-A-7-121799

  The device described in Patent Document 1 includes a plurality of display devices, and these display devices display camera images captured by cameras provided separately.

  However, even if separate camera images are displayed on a plurality of display devices in this way, the driver cannot see the plurality of display devices at the same time, and thus the camera image displayed on the display device may be overlooked. There is.

  For example, even if a camera image useful for the driver is displayed on a certain display device, if the driver views another display device during this time, the driver overlooks the useful camera image, and driving assistance is provided. There is a problem of not becoming.

  Therefore, it is possible to prevent such an oversight by simultaneously displaying other camera images as sub-images together with the camera image displayed as the main image on the display device. For example, these two camera images can be prevented. If the same size is displayed on the display device, the size of the camera image to be displayed is mainly reduced to about half, and the visibility is significantly reduced.

  The present invention has been made in view of the above problems, and an object thereof is to reduce oversight of camera images displayed on a display device by a driver while ensuring a predetermined visibility.

  In order to achieve the above object, according to the first to fifth aspects of the present invention, a plurality of cameras attached to the vehicle and a plurality of cameras that are provided in the interior of the vehicle and that are captured by the plurality of cameras are displayed. A display device for a vehicle including a display device, wherein each display device displays a camera image captured by a specific camera among a plurality of cameras as a main image. In addition to the camera image as the main image, a camera image other than the camera image as the main image is selected as a sub image from the camera images captured by a plurality of cameras, and the sub image is smaller than the main image. And a display control means for displaying.

  In this way, the display control means selects, as at least one of the display devices, a camera image other than the main camera image as a sub image from the camera images captured by a plurality of cameras together with the main camera image. And since the said subimage is displayed smaller than a main image, the oversight of the camera image displayed on the display apparatus by a driver | operator can be aimed at, ensuring predetermined visibility.

  In the inventions according to claims 6 to 10, a plurality of cameras attached to the vehicle and a display provided in a room of the vehicle and displaying camera images captured by the plurality of cameras on a plurality of display units. A display device for a vehicle provided with a device, wherein each display unit of the display device displays a camera image captured by a specific camera among the plurality of cameras as a main image, A camera image other than the camera image as the main image is selected as a sub-image from at least one of the plurality of display units of the display device together with the camera image as the main image from the camera images captured by the plurality of cameras. And display control means for displaying the sub-image smaller than the main image.

  In this way, the display control means includes a camera image as the main image and a camera image captured by the plurality of cameras other than the camera image as the main image on at least one of the plurality of display units of the display device. The sub-image is selected as a sub-image, and the sub-image is displayed smaller than the main image, so that oversight of the camera image displayed on the display device by the driver can be reduced while ensuring predetermined visibility. Can do.

  Further, as in the invention described in claim 2 or 7, the display control device includes winker information acquisition means for acquiring winker information indicating a right turn or a left turn from the vehicle direction indicator, and the winker information acquisition means acquires the winker information acquisition means. Based on the blinker information, the camera image is selected as a sub-image, so an appropriate camera image is used as a sub-image depending on the situation such as turning right, turning left, changing lanes to the right, changing lanes to the left. It can be displayed on a display device.

  Further, as in the invention described in claim 3 or 8, the display control means includes vehicle speed information acquisition means for acquiring vehicle speed information according to the speed of the vehicle, and based on the vehicle speed information acquired by the vehicle speed information acquisition means. Since a plurality of camera images to be displayed on the display device are selected from a plurality of camera images, for example, a camera image suitable for low speed running is displayed on the display device during low speed running, and a camera image suitable for high speed running during high speed running. Can be displayed on the display device as a sub-image.

  Further, as in the invention described in claim 4 or 9, the display control means includes object detection information acquisition means for acquiring object detection information indicating the presence or absence of an object approaching the vehicle, and the object detection information acquisition means acquires the object detection information. Since a plurality of camera images to be displayed on the display device are selected from the plurality of camera images based on the detected object detection information, for example, when there is an object approaching the vehicle, a predetermined camera image obtained by capturing the object approaching the vehicle is selected. By performing the image processing, it is possible to highlight an object approaching the vehicle and display it on the display device as a sub-image.

  Further, as in the invention described in claim 5 or 10, the display control device includes a travel route information acquisition unit that acquires travel route information around the vehicle from the navigation device, and the vehicle periphery acquired by the travel route information acquisition unit. Since a camera image as a sub-image is selected based on the travel route information, for example, a map of intersections around the vehicle can be displayed on the display device as a sub-image.

(First embodiment)
FIG. 1 shows an overall block configuration of a vehicle display device according to an embodiment of the present invention. As shown in FIG. 1, the vehicle display device 1 includes a plurality of cameras 10, a display control device 11, and a display device 12. In addition, a direction indicating device 20, a vehicle speed sensor 21, a radar 22, and a navigation device 23 are connected to the display control device 11.

  As shown in FIG. 2, the camera 10 captures the left side camera 10 a that captures the left side of the host vehicle 3, the right side camera 10 b that captures the right side of the host vehicle 3, and the left rear side of the host vehicle 3. A left rear side camera 10c, a right rear side camera 10c that images the right rear side of the host vehicle 3, and a rear camera 10e that images the rear side of the host vehicle 3 are provided.

  These cameras 10a to 10e are attached to appropriate positions of the host vehicle 3, and are connected to the display control device 11 together with the navigation device 23 by an IDB 1394 network that is one of the in-vehicle network standards.

  The navigation device 23 obtains the current position and traveling direction of the host vehicle 3 based on a signal input from a position detector such as a GPS or a gyroscope, and obtains map data using the current position and traveling direction of the host vehicle 3 as a current location mark. It has a map display function for displaying on the display screen superimposed on the map data acquired from the apparatus, a route guidance function for setting a guidance route to the destination, and performing guidance according to the set guidance route.

  As shown in FIG. 3, the display device 12 includes a left display device 12a provided on the left side in the traveling direction in the passenger compartment, a central display device 12b provided in the center, and a right display device 12c provided on the right side. I have.

  These display devices 12a to 12c have a display unit such as a liquid crystal display, and display an image based on an image signal input from the display control device 11 on the display unit.

  The direction indicating device 20 has, for example, a direction indicating switch disposed behind the steering wheel in the vehicle interior. When the direction indicating switch is operated by the driver, the left indicating lamps installed on the left and right sides of the host vehicle 3 or The right indicator lamp blinks. The direction indicating device 20 outputs winker information indicating a right turn or winker information indicating a left turn in accordance with an operation of a direction indicating switch by a driver.

  The vehicle speed sensor 21 measures the vehicle speed of the host vehicle 3 and outputs vehicle speed information including the measured vehicle speed of the host vehicle 3.

  For example, the radar 22 is attached to an appropriate position of the host vehicle 3, detects the presence or absence of an object approaching the host vehicle 3, and outputs object detection information indicating the presence or absence of an object approaching the vehicle.

  The winker information output from the direction indicating device 20, the vehicle speed information output from the vehicle speed sensor 21, and the object detection information output from the radar 22 are input to the display control device 11 via the in-vehicle LAN.

  The display control device 11 is constituted by, for example, a microcomputer including a ROM, a RAM, an I / O, a CPU, and the like, and performs image processing according to a program installed in advance in the ROM.

  The display control device 11 performs predetermined image processing on each camera image captured by the cameras 10 a to 10 e and a navigation image (hereinafter referred to as a navigation image) input from the navigation device 23, and thereby each display device of the display device 12. It displays on the display part of 12a-12c.

  Further, the display control device 11 is based on the winker information from the direction indicating device 20, the vehicle speed information from the vehicle speed sensor 21, the object detection information from the radar 22, and the travel route information around the vehicle from the navigation device. The camera image other than the camera image as the main image is displayed as a sub-image together with the camera image as the main image on ˜12c.

  In this way, when a plurality of camera images are displayed on the display device, it is sufficient that the sub-image is displayed in such a size that the outline can be understood, and the main image is preferably displayed as large as possible.

  Therefore, the display control device 11 according to the present embodiment displays the sub image on the display device 12 smaller than the main image.

  Next, processing of the display control device 11 will be described with reference to FIG. The microcomputer of the display control device 11 periodically performs the process shown in FIG.

  First, based on the position information, traveling direction, and map data of the host vehicle 3 input from the navigation device 23, it is determined whether or not the host vehicle 3 is positioned within a predetermined distance of an intersection or a T-junction. Specifically, when the host vehicle 3 is located in a section where the vehicle 3 has passed through the intersection or T-junction after reaching the intersection or T-junction within a predetermined distance, the host vehicle 3 has a predetermined distance of the intersection or T-junction. If it is determined that the vehicle 3 is located in front of the vehicle, and the vehicle 3 is not located in a section where the vehicle 3 has passed through the intersection or T-junction after reaching a predetermined distance within the intersection or T-junction, the vehicle 3 is not located in the intersection or T-junction (S100).

  Here, when it is determined that the host vehicle 3 is located within a predetermined distance of the intersection or T-junction (YES in S100), the vehicle speed information is acquired from the vehicle speed sensor 21, and the host vehicle is based on the acquired vehicle speed information. It is determined whether or not 3 is traveling at a low speed. Specifically, when the vehicle speed of the host vehicle 3 included in the vehicle speed information acquired from the vehicle speed sensor 21 is less than a predetermined value, it is determined that the vehicle is traveling at a low speed, and the vehicle speed information acquired from the vehicle speed sensor 21 is obtained. If the vehicle speed of the host vehicle 3 included in the vehicle speed information is equal to or higher than a predetermined value, it is determined that the vehicle is not traveling at a low speed (S102).

  If it is determined that the vehicle is traveling at a low speed (YES in S102), a traveling direction prediction process is performed (S200).

  FIG. 5 shows a flowchart of the traveling direction prediction process.

  First, it is determined whether the winker is on or off based on the winker information indicating a right turn or a left turn from the direction indicating device 20. Specifically, if winker information indicating a right turn or winker information indicating a left turn is input, it is determined that the winker is on, and if no winker information indicating a right turn or winker information indicating a left turn is input, the winker is turned off. (S202).

  Here, when it is determined that the turn signal is on (YES in S202), a right / left turn is predicted in the turn-on direction of the turn signal. For example, when turn signal information indicating a right turn is input, the host vehicle 3 is predicted to turn right, and when turn signal information indicating a right turn is input, the host vehicle 3 is predicted to turn left (S203).

  In S202, if neither the winker information indicating a right turn or the winker information indicating a left turn is input, it is determined that the winker is not on (NO in S202), and the route guidance function of the navigation device 23 sets the guidance route. It is determined whether it has been done (S204).

  Here, when it is determined that the guidance route is set (YES in S204), it is predicted that the host vehicle 3 will travel in the direction according to the guidance route. For example, when turning right at the intersection based on the guidance route, the host vehicle 3 is predicted to turn right, and when turning left at the intersection based on the guidance route, the host vehicle 3 is predicted to turn left (S205).

  In S204, when it is determined that the guidance route is not set (NO in S204), it is determined that the host vehicle 3 goes straight (S206).

  Next, returning to the description of FIG. 4, it is determined whether the traveling direction predicted by the traveling direction prediction process is a right turn or a left turn (S300, S302).

  When it is determined in S300 that the predicted traveling direction is a right turn, display as “display for right turn” is performed on the display units of the display devices 12a to 12c (S304), and the process returns to the determination in S100.

  6A to 6C show examples of “display for right turn”. 6A shows a display unit of the left display device 12a, FIG. 6B shows a display unit of the central display device 12b, and FIG. 6C shows a display example of the display unit of the right display device 12c.

  As shown in FIG. 6A, the left display device 12a displays the camera image C captured by the left rear side camera 10c as a main image on the left side of the display unit, and at the same time, images by the left side camera 10a. The captured camera image A and the camera image B captured by the right-side camera 10b are displayed as sub-images on the right side of the display unit smaller than the main image. Further, the left display device 12a displays the figure F showing the camera arrangement and the imaging area by the camera as a sub-image smaller than the main image.

  As shown in FIG. 6B, the central display device 12b displays the camera image A captured by the left-side camera 10a and the camera image B captured by the right-side camera 10b as main images in the left and right directions. is doing. Further, in the center portion, FIG. F showing a camera arrangement and an imaging area by the camera and a map G around the current location mark of the host vehicle 3 are displayed smaller than the main image.

  Further, as shown in FIG. 6C, the right display device 12c displays the camera image D captured by the right rear side camera 10d as a main image, and at the same time, is captured by the left side camera 10a. The camera image A and the camera image B captured by the right-side camera 10b are displayed as sub-images smaller than the main image. Furthermore, the left display device 12a displays a figure F showing the camera arrangement and the imaging area by the camera smaller than the main image.

  As described above, when the display control device 11 determines that the host vehicle 3 is to turn right based on the winker information from the direction indicating device 20, a plurality of items to be displayed on each of the display devices 12a to 12c as "display for right turn". The selected images are displayed on the display devices 12a to 12c.

  Next, in S300 of FIG. 4, it is determined that the predicted traveling direction is not a right turn (determined as NO in S300), and when it is determined that the predicted traveling direction is a left turn in S302 (determined as YES in S302), display Display as "display for left turn" is performed on the display units of the devices 12a to 12c (S305), and the process returns to the determination of S100.

  FIGS. 7A to 7C show examples of “display for left turn”. The display of the left display device 12a shown in FIG. 7A is the same as the “display for turning left” shown in FIG.

  The central display device 12b shown in FIG. 7B has a camera image C captured by the left rear side camera 10c as a sub-image, in addition to the “display for turning left” shown in FIG. 6B. It is displayed smaller than the image.

  Similarly, the right display device 12c shown in FIG. 7C further displays a camera image C captured by the left rear side camera 10c in addition to the “left turn display” shown in FIG. 6C. The image is displayed smaller than the main image.

  As described above, when it is determined that the host vehicle 3 makes a left turn based on the winker information from the direction indicating device 20, the display control device 11 displays a plurality of items to be displayed on each of the display devices 12 a to 12 c as “display for left turn”. The selected images are displayed on the display devices 12a to 12c.

  Next, when it is determined in S302 of FIG. 4 that the predicted traveling direction is not a left turn (NO in S302), the display units of the display devices 12a to 12c are displayed as “display for straight travel” (S306). ), The process returns to S100.

  In addition, the display of “display for straight travel” is the same as the display of “display for right turn” shown in FIGS.

  Returning to the description of FIG. 4, when it is determined in S100 that the own vehicle 3 is not located within a predetermined distance of the intersection or T-junction (determined as NO in S100), the turn signal indicating a left turn from the direction indicating device 20 It is determined whether or not to change the lane to the left based on whether or not information is input (S400).

  Here, when winker information indicating a left turn is input from the direction indicating device 20, it is determined that the host vehicle 3 changes the lane to the left (YES in S400), and the left lane is displayed on the display units of the display devices 12a to 12c. Display as “display for change” is performed (S401), and the process returns to the determination of S100.

  FIGS. 8A to 8C show examples of “display for changing left lane”. 8A shows a display unit of the left display device 12a, FIG. 8B shows a display unit of the central display device 12b, and FIG. 8C shows a display example of the display unit of the right display device 12c.

  As shown in FIG. 8 (a), the left display device 12a displays the camera image C captured by the left rear side camera 10c as a main image on the left side of the display unit and is simultaneously captured by the rear camera 10e. The camera image E is displayed as a sub-image smaller than the main image. Furthermore, the left display device 12a displays a figure F showing the camera arrangement and the imaging area by the camera smaller than the main image.

  Thus, the camera image C is displayed large as a main image so that details can be understood, and the camera image E is displayed as a sub-image smaller than the main image so that the outline can be understood.

  Further, as shown in FIG. 8B, the central display device 12b displays a large camera image E captured by the rear camera 10e as a main image in the center. Further, a navigation screen N of the navigation device is displayed on the right side of the display unit, and a camera image C captured by the left rear side camera 10c, a camera arrangement, and an imaging area by the camera are displayed on the left side of the display unit. F is displayed as a sub-image smaller than the main image.

  Further, as shown in FIG. 8C, the right display device 12c displays the camera image D captured by the right rear side camera 10d as a main image, and at the same time, the camera captured by the rear camera 10e. The image E is displayed as a sub-image smaller than the main image. Furthermore, the right display device 12c displays the figure F showing the camera arrangement and the imaging area by the camera smaller than the main image.

  In S400 of FIG. 4, when the turn signal information indicating the left turn is not input from the direction indication device 20, it is determined that the host vehicle 3 changes the lane to the right (NO in S400), and the right turn from the direction indication device 20 is indicated. Based on whether or not the turn signal information is input, it is determined whether or not to change the lane to the right (S402).

  Here, when winker information indicating a right turn is input from the direction indicating device 20, it is determined that the host vehicle 3 changes the lane to the right (YES in S400), and the right lane is displayed on the display units of the display devices 12a to 12c. The display as “display for change” is performed (S403), and the process returns to the determination of S100.

  9A to 9C show examples of “display for changing the right lane”. 8A shows a display unit of the left display device 12a, FIG. 8B shows a display unit of the central display device 12b, and FIG. 8C shows a display example of the display unit of the right display device 12c.

  The display of the left display device 12a shown in FIG. 9A is the same as the display of “left lane change display” shown in FIG. 8A. Also, the display of the right display device 12c shown in FIG. 9C is the same as the display of “display for changing left lane” shown in FIG. 8C.

  As shown in FIG. 9B, the central display device 12b displays the camera image E captured by the rear camera 10e as a main image in the center. Further, a navigation screen N of the navigation device is displayed on the left side of the display unit, and a camera image C captured by the left rear side camera 10c, a camera arrangement, and an imaging area by the camera are displayed on the right side of the display unit. F is displayed as a sub-image smaller than the main image.

  As described above, the vehicular display device 1 includes a plurality of cameras 10a to 10e attached to the host vehicle 3 and a plurality of camera images provided inside the host vehicle 3 and captured by the plurality of cameras 10a to 10e. A plurality of display devices 12a to 12c for displaying A to E and a camera image as a main image on the plurality of display devices 12a to 12c as main images from among the camera images captured by the plurality of cameras 10a to 10e. A display control device 11 is provided for selecting a camera image other than the camera image and displaying the sub-image smaller than the main image.

  When a plurality of camera images are displayed on the display device, the sub-image may be displayed in a size that allows an outline to be understood, and the main image is preferably displayed as large as possible.

  In this way, the display control device 11 has a camera image other than the camera image as the main image among the camera images captured by the plurality of cameras 10a to 10e together with the camera image as the main image on the display devices 12a to 12c. And the sub-image is displayed smaller than the main image, so that oversight of the camera image displayed on the display device by the driver can be reduced while ensuring predetermined visibility.

  Moreover, the display control apparatus 11 acquires the winker information which shows a right turn or a left turn from the direction indication apparatus 20 of the own vehicle 3, and based on the acquired winker information, it is made to display on display apparatus 12a-12c from several camera images. Therefore, an appropriate camera image can be displayed on the display devices 12a to 12c according to the situation such as when turning right, turning left, changing lane to the right, changing lane to the left.

  Moreover, the display control apparatus 11 acquires the vehicle speed information according to the speed of the own vehicle 3, and selects a plurality of camera images to be displayed on the display devices 12a to 12c from the plurality of camera images based on the acquired vehicle speed information. Therefore, for example, a camera image suitable for low-speed traveling can be displayed on the display device during low-speed traveling, and a camera image suitable for high-speed traveling can be displayed on the display device during high-speed traveling.

  In addition, the display control device 11 acquires object detection information indicating the presence or absence of an object approaching the host vehicle 3, and based on the acquired object detection information, a plurality of display images are displayed on the display devices 12a to 12c. Since a camera image is selected, for example, when there is an object approaching the host vehicle 3, predetermined image processing is performed on the camera image obtained by imaging the object approaching the host vehicle 3 to highlight the object approaching the vehicle. Can be displayed on the display device.

  In the above embodiment, the display control device 11 corresponds to the display control means, the processing in which the display control device 11 acquires the winker information from the direction indicating device 20 corresponds to the winker information acquisition means, and the display control device 11 is the vehicle speed. The process of acquiring vehicle speed information from the sensor 21 corresponds to vehicle speed information acquisition means, and the process of the display control device 11 acquiring object detection information from the radar 22 corresponds to object detection information acquisition means.

  In addition, this invention is not limited to the said embodiment, Based on the meaning of this invention, it can implement with a various form.

  For example, the vehicle display device according to the above-described embodiment has shown an example in which a plurality of display devices 12a to 12c are provided in the vehicle interior as shown in FIG. 3, but a plurality of displays as shown in FIG. It is good also as a structure provided with the large sized display apparatus 13 in which the part (the left display part, the television display part, the center display part, the navigation screen display part, the right display part, etc.) was provided. In this case, a camera image other than the camera image as the main image may be displayed as a sub-image smaller than the main image on each display unit of the display device together with the camera image as the main image.

  Moreover, although the example which attached the five cameras 10a-10e to the suitable place of the vehicle was shown in the said embodiment, the position of a camera and the number of cameras can be set arbitrarily. In addition, the installation locations and the number of the display devices 12a to 12c can be arbitrarily set.

  In addition, when there is an object approaching the host vehicle 3, predetermined image processing is performed on a camera image obtained by imaging the object approaching the host vehicle 3, and the object approaching the vehicle is highlighted and displayed on the display device. Also good.

It is a figure which shows the whole block structure of the display apparatus for vehicles which concerns on one Embodiment of this invention. It is a figure which shows the arrangement | positioning of a camera, and the imaging area of a camera. It is a figure which shows arrangement | positioning of a display apparatus. It is a flowchart of a display control apparatus. It is a flowchart of the advancing direction prediction process. It is a figure which shows the example of a display for "right turn time display" and "a straight line time display." It is a figure which shows the example of a display of "display for the time of a left turn." It is a figure which shows the example of a display of "the display for left lane changes." It is a figure which shows the example of a display of "display for right lane changes." It is a figure which shows arrangement | positioning of the display apparatus which concerns on other embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Display apparatus for vehicles, 10, 10a-10e ... Camera, 11 ... Display control apparatus,
12, 12a-12c ... display device, 20 ... direction indicating device, 21 ... vehicle speed sensor,
22 ... Radar, 23 ... Navigation device.

Claims (10)

A vehicle display device comprising a plurality of cameras attached to a vehicle, and a plurality of display devices that are provided in a room of the vehicle and that display camera images captured by the plurality of cameras,
Each of the display devices is configured to display a camera image captured by a specific camera among the plurality of cameras as a main image,
A camera image other than the camera image as the main image is selected as a sub image from at least one of the plurality of display devices together with the camera image as the main image from the camera images captured by the plurality of cameras. Display control means for displaying a sub-image smaller than the main image, and a vehicle display device. The display control device includes winker information acquisition means for acquiring winker information indicating a right turn or a left turn from the vehicle direction indicator device,
2. The vehicle display device according to claim 1, wherein a camera image as the sub-image is selected based on the winker information acquired by the winker information acquisition means. The display control device includes vehicle speed information acquisition means for acquiring vehicle speed information according to the speed of the vehicle,
The vehicle display device according to claim 1, wherein a camera image as the sub-image is selected based on the vehicle speed information acquired by the vehicle speed information acquisition unit. The display control device includes object detection information acquisition means for acquiring object detection information indicating the presence or absence of an object approaching the vehicle,
The vehicle display device according to claim 1, wherein a camera image as the sub-image is selected based on the object detection information acquired by the object detection information acquisition unit. The display control device includes travel route information acquisition means for acquiring travel route information around the vehicle from a navigation device,
5. The vehicle display according to claim 1, wherein a camera image as the sub-image is selected based on travel route information around the vehicle acquired by the travel route information acquisition unit. apparatus. A vehicle display device comprising a plurality of cameras attached to a vehicle and a display device provided in a room of the vehicle and displaying camera images captured by the plurality of cameras on a plurality of display units,
Each display unit of the display device is configured to display a camera image captured by a specific camera among the plurality of cameras as a main image,
A camera image other than the camera image as the main image is selected as a sub image from the camera images captured by the plurality of cameras together with the camera image as the main image in at least one of the plurality of display units of the display device. And a display control means for displaying the sub-image smaller than the main image. The display control device includes winker information acquisition means for acquiring winker information indicating a right turn or a left turn from the vehicle direction indicator device,
The vehicle display device according to claim 6, wherein a camera image as the sub-image is selected based on the winker information acquired by the winker information acquisition unit. The display control device includes vehicle speed information acquisition means for acquiring vehicle speed information according to the speed of the vehicle,
The vehicle display device according to claim 6 or 7, wherein a camera image as the sub-image is selected based on the vehicle speed information acquired by the vehicle speed information acquisition means. The display control device includes object detection information acquisition means for acquiring object detection information indicating the presence or absence of an object approaching the vehicle,
9. The vehicle display device according to claim 6, wherein a camera image as the sub-image is selected based on the object detection information acquired by the object detection information acquisition unit. The display control device includes travel route information acquisition means for acquiring travel route information around the vehicle from a navigation device,
The vehicle display according to any one of claims 6 to 9, wherein a camera image as the sub-image is selected based on travel route information around the vehicle acquired by the travel route information acquisition means. apparatus.

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