JP2022148048A - Vehicle display control device and vehicle display control method - Google Patents

Abstract

To appropriately control a plurality of display components arranged in a vehicle.SOLUTION: A vehicle display control device 30 includes a main monitor 21 arranged at a position visible to a driver of a vehicle, a display control unit 41 that displays an image on a sub-monitor 22 arranged at a position different from the main monitor 21, and a line-of-sight detection unit 34 that detects the driver's line of sight, and when the display control unit 41 detects that the driver is not visually recognizing the sub-monitor 22 on the basis of the detection result of the line-of-sight detection unit 34, the sub-monitor 22 displays a content image for a passenger other than the driver.SELECTED DRAWING: Figure 1

Description

The present invention relates to a vehicle display control device and a vehicle display control method.

2. Description of the Related Art There is known a technique related to a vehicle monitor device that is capable of displaying separate images on two screens of a display unit of an instrument panel and that is set so that the respective display contents can be switched between each other. (See Patent Document 1, for example).

Japanese Unexamined Patent Application Publication No. 2012-180080

Vehicles are provided with a plurality of display units including a display unit of an instrument panel. These display units can display images for assisting the driver in driving and content images so that passengers other than the driver can spend time comfortably. Therefore, it is desirable to appropriately control the plurality of display units.

SUMMARY OF THE INVENTION It is an object of the present invention to appropriately control a plurality of display units arranged in a vehicle.

In order to solve the above-described problems and achieve the object, a vehicle display control device according to the present invention includes: a first display unit arranged at a position visible to a driver of a vehicle; includes a display control unit for displaying an image on a second display unit arranged at a different position, and a line-of-sight detection unit for detecting the line of sight of the driver, wherein the display control unit detects the line-of-sight detection unit. Based on the result, when it is detected that the driver is not visually recognizing the second display unit, the second display unit is caused to display a content image for passengers other than the driver.

In a vehicle display control method according to the present invention, an image is displayed on a first display unit arranged at a position visible to a driver of a vehicle, and a second display unit arranged at a position different from the first display unit. and a line-of-sight detection step of detecting the line-of-sight of the driver, wherein the display control step causes the driver to display the second display unit based on the detection result of the line-of-sight detection step is detected, a content image for passengers other than the driver is displayed on the second display unit.

ADVANTAGE OF THE INVENTION According to this invention, there exists an effect that the display part arrange|positioned in the inside of a vehicle can be controlled appropriately.

FIG. 1 is a block diagram showing a configuration example of a vehicle display system including a vehicle display control device according to the first embodiment. FIG. 2 is a flowchart showing the flow of processing in the vehicle display control device according to the first embodiment. FIG. 3 is a flowchart showing the flow of processing in the vehicle display control device according to the first embodiment. FIG. 4 is a flow chart showing the flow of processing in the vehicle display control device according to the first embodiment.

Exemplary embodiments of a vehicle display control device and a vehicle display control method according to the present invention will be described below in detail with reference to the accompanying drawings. In addition, the present invention is not limited by the following embodiments.

[First embodiment]
(vehicle display system)
A vehicle display system 1 performs display control on a plurality of display units mounted on a vehicle. FIG. 1 is a block diagram showing a configuration example of a vehicle display system 1 including a vehicle display control device 30 according to the first embodiment. In this embodiment, the multiple display units include a main monitor (first display unit) 21 and a sub-monitor (second display unit) 22 .

As shown in FIG. 1, the vehicle display system 1 includes a communication unit 11, an in-vehicle camera 12, a right rear camera 13, a left rear camera 14, a CAN (Controller Area Network) interface unit 15, and a warning unit 16. and a vehicle display control device 30 .

The communication section 11 is a communication unit. The communication unit 11 enables transmission and reception of data with a portable electronic device brought into the vehicle. The communication unit 11 communicates wirelessly or by wire. The communication unit 11 may use, for example, a mobile phone line including a 5G line. The communication unit 11 may use wireless communication standards including, for example, Wi-Fi (registered trademark) and Bluetooth (registered trademark). The communication unit 11 may use a wired communication standard.

The in-vehicle camera 12 is arranged in front of the vehicle and photographs the driver of the vehicle. The in-vehicle camera 12 photographs the driver's face and fingers. The in-vehicle camera 12 constantly captures images while the vehicle display system 1 is running. The in-vehicle camera 12 outputs captured video data to the video data acquisition unit 32 of the vehicle display control device 30 .

The right rear camera 13 is arranged on the right side of the vehicle and photographs the right side of the vehicle. The right rear camera 13 photographs the confirmation range by the right side monitor 221 . The right rear camera 13 has a horizontal angle of view of, for example, 15 to 45° and a vertical angle of view of, for example, 15 to 45°. The right rear camera 13 constantly captures images while the vehicle display system 1 is running. The right rear camera 13 outputs captured video data to the video data acquisition unit 32 of the vehicle display control device 30 .

The left rear camera 14 is arranged on the left side of the vehicle and photographs the left side of the vehicle. The left rear camera 14 photographs the confirmation range by the left side monitor 222 . The left rear camera 14 has a horizontal angle of view of, for example, 15 to 45 degrees and a vertical angle of view of, for example, 15 to 45 degrees. The left rear camera 14 constantly captures images while the vehicle display system 1 is running. The left rear camera 14 outputs captured video data to the video data acquisition unit 32 of the vehicle display control device 30 .

The CAN interface unit 15 is an interface for acquiring various vehicle information via CAN. The vehicle information includes, for example, information related to the operational status of the engine, the running status of the vehicle, and the like.

A warning unit 16 outputs a warning to the driver. The warning unit 16 includes at least one of, for example, a display unit, a speaker, and a warning light. The warning unit 16 issues a warning based on a control signal from the warning control unit 43 of the vehicle display control device 30 .

(main monitor)
The main monitor 21 is the main display device of the vehicle. The main monitor 21 displays information for the driver while the vehicle is running. In this embodiment, the main monitor 21 displays only map images for route guidance of the navigation system while the vehicle is running, and displays content images including TV broadcast images and video images for passengers other than the driver. Do not show. The main monitor 21 can display content images including television broadcast images and video images for passengers other than the driver except when the vehicle is running. The main monitor 21 may be dedicated to the vehicle display system 1, or may be used jointly with other systems including, for example, a navigation system. The main monitor 21 is arranged at a position where it can be easily viewed by the driver. In this embodiment, the main monitor 21 is arranged on the center console at the center of the dashboard in the vehicle width direction. The main monitor 21 is, for example, an infotainment monitor. The main monitor 21 has a display section 21a and an operation section 21b.

The display unit 21a is, for example, a display including a liquid crystal display (LCD) or an organic EL (Electro-Luminescence) display. The display unit 21a displays, for example, a route guidance map image of the navigation system based on the image signal output from the vehicle display control device 30 of the vehicle display system 1. FIG. The operation unit 21b is configured by a touch panel arranged on the display unit 21a. The operation unit 21b can receive various operations for the navigation system. For example, the operation unit 21b can accept an operation of inputting a destination. For example, the operation unit 21b can accept an operation to start route guidance from the current position to the destination. The operation unit 21 b outputs operation information to the operation reception unit 42 of the navigation control device 20 . The operation unit 21b can accept various operations such as playback, stop, and fast-forward for the content video displayed on the display unit 21a.

(Sub monitor)
A sub-monitor 22 is a monitor other than the main monitor 21 . The sub-monitor 22 may be dedicated to the vehicle display system 1 or may be used jointly with other systems including, for example, a navigation system. The sub-monitor 22 is arranged at a different position from the main monitor 21 . In this embodiment, the sub-monitor 22 includes a right side monitor 221 , a left side monitor 222 , a rear seat monitor 223 and an external monitor 224 .

The right side monitor 221 is a display device. The right side monitor 221 is arranged at a position where it can be easily viewed by the driver and passengers other than the driver. In this embodiment, the right side monitor 221 is arranged on the right side of the dashboard D in the vehicle width direction. The right side monitor 221 has a display section 221a. The display unit 221a is a display including, for example, a liquid crystal display or an organic EL display. The display unit 221a can display at least one of the right rear image of the vehicle, the map image, and the content image based on the image signal output from the display control unit 41 of the vehicle display control device 30.

Left side monitor 222 is a display device. The left side monitor 222 is arranged at a position where it can be easily viewed by the driver and passengers other than the driver. In this embodiment, the left side monitor 222 is arranged on the left side of the dashboard D in the vehicle width direction. The left side monitor 222 has a display section 222a. The display unit 221a is, for example, a display including a liquid crystal display or an organic EL display. The display unit 222a can display at least one of the left rear image of the vehicle, the map image, and the content image based on the image signal output from the display control unit 41 of the vehicle display control device 30.

The rear seat monitor 223 is a display device with a touch panel. The rear seat monitor 223 is arranged at a position where it can be easily viewed by passengers sitting in the rear seats. In this embodiment, the rear seat monitor 223 is arranged in the upper center of the vehicle compartment. The rear seat monitor 223 has a display section 223a and an operation section 223b.

The display unit 223a is a display including, for example, a liquid crystal display or an organic EL display. The display unit 223a can display at least one of the map image and the content image based on the image signal output from the display control unit 41 of the display control device 30 for vehicle. The operation unit 223b is configured by a touch panel arranged on the display unit 223a. The operation unit 223b can receive various operations on the content video displayed on the display unit 223a. The operation unit 223b can receive various operations for the navigation system.

The external monitor 224 is a display device with a touch panel. External monitor 224 is an electronic device brought into the vehicle. The external monitor 224 has a display section 224a and an operation section 224b.

The display unit 224a is a display including, for example, a liquid crystal display or an organic EL display. The display unit 224a can display at least one of the map image and the content image based on the image signal output from the display control device 30 for vehicle. The operation unit 224b is configured by a touch panel arranged on the display unit 224a. The operation unit 224b can receive various operations on the content video displayed on the display unit 224a. The operation unit 224b can receive various operations for the navigation system.

(Vehicle display control device)
The vehicle display control device 30 is, for example, an arithmetic processing device including a CPU (Central Processing Unit). The vehicle display control device 30 includes a communication control unit 31, a video data acquisition unit 32, a vehicle information acquisition unit 33, a line of sight detection unit 34, a motion recognition unit 35, a determination unit 36, and a display control unit 41. , an operation reception unit 42 and a warning control unit 43 . The vehicle display control device 30 executes commands included in a program stored in a storage unit (not shown).

The communication control section 31 controls communication by the communication section 11 .

The image data acquisition unit 32 acquires image data from the in-vehicle camera 12 that captures the image of the driver. The video data acquisition unit 32 outputs the acquired video data to the line-of-sight detection unit 34 and the action recognition unit 35 .

The video data acquisition unit 32 acquires video data from the right rear camera 13 and the left rear camera 14 that capture images of the rear left and right sides of the vehicle. The video data acquisition unit 32 outputs the acquired video data to the display control unit 41 .

The vehicle information acquisition unit 33 acquires vehicle information indicating the running state of the vehicle from a CAN (Controller Area Network), various sensors that sense the state of the vehicle, and the like. The vehicle information acquisition unit 33 may acquire vehicle speed information indicating vehicle speed. The vehicle information acquisition unit 33 outputs vehicle information to the determination unit 36 .

The line-of-sight detection unit 34 detects the line-of-sight direction of the vehicle driver from the in-vehicle image data. More specifically, the line-of-sight detection unit 34 recognizes a person from the in-vehicle image data. A known method can be used for recognizing a person from in-vehicle video data, and is not limited. The detected person is the driver of the vehicle. The line-of-sight detection unit 34 performs image processing on the in-vehicle video data, recognizes the face of the driver, and detects the direction of the line of sight. More specifically, the line-of-sight detection unit 34, for example, recognizes the eyes of the driver from the in-vehicle image data, and acquires information indicating the line-of-sight direction. For line-of-sight detection based on the driver's eye image, any method can be applied, such as line-of-sight detection based on the positional relationship between the inner corner of the eye and the iris detected from the eye image, or line-of-sight detection based on the positional relationship between the corneal reflection and the pupil. .

The motion recognition unit 35 recognizes the finger motion of the driver of the vehicle from the in-vehicle image data. More specifically, the motion recognition unit 35 recognizes a person from the in-vehicle image data. A known method can be used for recognizing a person from in-vehicle video data, and is not limited. The detected person is the driver of the vehicle. The motion recognition unit 35 performs image processing on the in-vehicle image data, recognizes the driver's hand and fingers, and recognizes the motion of the fingers.

Based on at least one of the vehicle information acquired by the vehicle information acquisition unit 33, the detection result of the line of sight detection unit 34, and the recognition result of the action recognition unit 35, the determination unit 36 determines whether the line of sight or determine the action.

The fact that the vehicle is running means, for example, that the vehicle speed has been greater than zero for a predetermined period of time or longer.

For example, based on the vehicle information acquired by the vehicle information acquisition unit 33 and the recognition result of the action recognition unit 35, the determination unit 36 determines whether the driver is trying to operate any operation unit while the vehicle is running. judge.

For example, based on the vehicle information acquired by the vehicle information acquisition unit 33 and the detection result of the line-of-sight detection unit 34, the determination unit 36 visually recognizes the sub-monitor 22 that the driver can visually recognize from the driver's seat while the vehicle is running. determine whether or not there is In the present embodiment, the determination unit 36 determines whether the driver detects the right side monitor 221 or the left side monitor 221 while the vehicle is running, based on the vehicle information acquired by the vehicle information acquisition unit 33 and the detection result of the line-of-sight detection unit 34, for example. It is determined whether or not the monitor 222 is visually recognized.

For example, based on the vehicle information acquired by the vehicle information acquisition unit 33 and the detection result of the line-of-sight detection unit 34, the determination unit 36 visually recognizes the sub-monitor 22 that the driver cannot visually recognize from the driver's seat while the vehicle is running. Determine whether or not In the present embodiment, the determination unit 36 determines whether the driver is using the rear seat monitor 223 or the external monitor while the vehicle is running, based on the vehicle information acquired by the vehicle information acquisition unit 33 and the detection result of the line-of-sight detection unit 34, for example. 224 is visually recognized.

If none of the above applies, various image displays or various operations on the main monitor 21 and the sub monitor 22 are restricted. If none of the above applies, various image displays and various operations on the main monitor 21 and the sub monitor 22 are permitted.

The display control unit 41 causes the main monitor 21 and the sub monitor 22 to display various images. The display control unit 41 causes the main monitor 21 , the right side monitor 221 , the left side monitor 222 , the rear seat monitor 223 and the external monitor 224 to display the map image obtained from the navigation system. The display control unit 41 causes the right side monitor 221 to display the image captured by the right rear camera 13 acquired by the image data acquisition unit 32 . The display control unit 41 causes the left side monitor 222 to display the image captured by the left rear camera 14 acquired by the image data acquisition unit 32 . The display control unit 41 causes the right side monitor 221 , the left side monitor 222 , the rear seat monitor 223 and the external monitor 224 to display the content video acquired from the car audio system.

The display control unit 41 causes the sub-monitor 22 to display the content video when the determination unit 36 determines that the driver does not visually recognize the sub-monitor 22 while the vehicle is running. In this embodiment, when the determination unit 36 determines that the driver does not view the right side monitor 221 or the left side monitor 222 while the vehicle is running, the display control unit 41 displays the right side monitor 221 or the left side monitor 222 . 221 or the left side monitor 222 to display the content video.

When the determination unit 36 determines that the driver is viewing the sub-monitor 22 while the vehicle is running, the display control unit 41 displays an image that the driver preferably views on the sub-monitor 22. Let In this embodiment, when the determination unit 36 determines that the driver is viewing the right side monitor 221 or the left side monitor 222 while the vehicle is running, the display control unit 41 displays the right side monitor 221 or the left side monitor 221 . The image taken by the right rear camera 13 or the image taken by the left rear camera 14 is displayed on the monitor 222.例文帳に追加At this time, the display control unit 41 may superimpose the image of the main monitor 21 on a part of the right side monitor 221 or the left side monitor 222 and display it. As a result, the image viewed by the fellow passenger in the front passenger seat is continuously displayed on the right side monitor 221 or the left side monitor 222 .

The image that the driver preferably visually recognizes is an image that assists the driver in driving while the vehicle is running. The video that the driver preferably views is, for example, the video captured by the right rear camera 13 or the video captured by the left rear camera 14 . The image that the driver preferably views is, for example, an image from a navigation system. The image that the driver preferably visually recognizes is an image relating to the running of the vehicle. The video that the driver preferably views does not include the content video.

The display control unit 41 may display the content video in a small size superimposed on a part of the screen of the sub-monitor 22 . When the display control unit 41 superimposes and displays the content video on the screen of the sub monitor 22, the video that is preferable for the driver to visually recognize is prioritized over the content video and displayed larger. In this embodiment, the display control unit 41 superimposes and displays the content video on a part of the screen of the right side monitor 221 or the left side monitor 222 arranged on the passenger seat side.

The display control unit 41 stops displaying the image on the rear seat monitor 223 or the external monitor 224 after a predetermined time has elapsed since the warning control unit 43 output a warning about inattentive driving.

The operation reception unit 42 receives various operations via each operation unit. The operation reception unit 42 acquires operation information of operations received by each operation unit. For example, the operation reception unit 42 acquires operation information indicating various operations related to the vehicle display system 1 and outputs a control signal. The operation reception unit 42 acquires operation information indicating various operations related to the content video and outputs control signals.

The operation accepting unit 42 accepts an operation on the content video for passengers via the second operating unit arranged on the sub-monitor 22 . When the determination unit 36 determines that the driver is about to operate any operation unit while the vehicle is running, the operation reception unit 42 restricts the function of each operation unit in order to regulate various operations. Restricting the function of each operation unit means, for example, disabling input of various operations.

The warning control section 43 outputs various warnings from the warning section 16 . For example, when various operations are restricted by the operation accepting unit 42, the warning control unit 43 outputs a warning such as "Operation is not possible" from the warning unit 16 by display or voice. For example, when the determination unit 36 determines that the driver is visually recognizing the rear seat monitor 223 or the external monitor 224 while the vehicle is running, the warning control unit 43 displays or sounds that the driver is looking aside. is output from the warning unit 16.

(Processing in Vehicle Display Control Device)
Next, the flow of processing by the vehicle display control device 30 will be described with reference to FIGS. 2 to 4. FIG. FIG. 2 is a flow chart showing the flow of processing in the vehicle display control device 30 according to the first embodiment. FIG. 3 is a flow chart showing the flow of processing in the vehicle display control device 30 according to the first embodiment. FIG. 4 is a flow chart showing the flow of processing in the vehicle display control device 30 according to the first embodiment.

While the vehicle is running, the vehicle display system 1 is activated and the processes shown in FIGS. 2 to 4 are executed. As a premise for the processing shown in FIGS. 2 to 4 , the video data acquisition unit 32 acquires video data from the in-vehicle camera 12 , the right rear camera 13 , and the left rear camera 14 . The vehicle information acquisition unit 33 acquires vehicle information. A map image is displayed on the main monitor 21, an image captured by the right rear camera 13 is displayed on the entire surface of the right side monitor 221, and an image captured by the left rear camera 14 is displayed on the entire surface of the left side monitor 222. there is

First, with reference to FIG. 2, processing for restricting functions for each operation unit will be described. The vehicle display control device 30 determines whether or not the driver is about to operate (step S11). More specifically, the vehicular display control device 30 uses the motion recognition unit 35 to recognize motions of the driver's fingers. Based on the vehicle information acquired by the vehicle information acquisition unit 33 and the recognition result of the action recognition unit 35, the vehicle display control device 30 determines whether the driver operates any operation unit while the vehicle is running. Determine whether you are going to operate. When the determination unit 36 determines that the driver is about to operate (Yes in step S11), the vehicle display control device 30 proceeds to step S12. When the determination unit 36 does not determine that the driver is about to operate (No in step S11), the vehicle display control device 30 executes the process of step S11 again.

The vehicle display control device 30 regulates the operation of the main monitor 21 and the sub-monitor 22 (step S12). More specifically, the vehicular display control device 30 restricts the function of each operation unit of each monitor by the operation reception unit 42 .

Next, display control processing for the right side monitor 221 and the left side monitor 222 will be described with reference to FIG. The vehicle display control device 30 determines whether or not the driver is viewing the side monitor (step S21). More specifically, the vehicular display control device 30 uses the line-of-sight detection unit 34 to detect the line-of-sight direction of the vehicle driver from the in-vehicle image data. Based on the vehicle information acquired by the vehicle information acquisition unit 33 and the detection result of the line-of-sight detection unit 34, the vehicle display control device 30 determines whether or not the driver is using the right side monitor 221 or the left side monitor 221 while the vehicle is running. It is determined whether or not the side monitor 222 is visually recognized. When the vehicle display control device 30 determines that the driver does not view the side monitor (Yes in step S21), the process proceeds to step S22. If the vehicle display control device 30 does not determine that the driver is not viewing the side monitor (No in step S21), the process proceeds to step S23.

When it is determined that the driver does not view the side monitor (Yes in step S21), the vehicle display control device 30 causes the side monitor to display the content video (step S22). More specifically, the vehicle display control device 30 causes the display control unit 41 to display the content video on the right side monitor 221 or the left side monitor 222 .

If it is not determined that the driver is visually recognizing the side monitor (No in step S21), the vehicle display control device 30 displays the side rear camera image on the side monitor (step S23). More specifically, the vehicle display control device 30 causes the display control unit 41 to display the image captured by the right rear camera 13 or the left rear camera 14 on the right side monitor 221 or the left side monitor 222 . The vehicle display control device 30 may cause the display control unit 41 to superimpose the image of the main monitor 21 in a small size on the right side monitor 221 or the left side monitor 222 .

Next, display control processing for the rear seat monitor 223 and the external monitor 224 will be described with reference to FIG. The vehicle display control device 30 determines whether or not the driver is viewing the sub-monitor 22 other than the side monitor (step S31). More specifically, the vehicular display control device 30 uses the line-of-sight detection unit 34 to detect the line-of-sight direction of the vehicle driver from the in-vehicle image data. Based on the vehicle information acquired by the vehicle information acquisition unit 33 and the detection result of the line-of-sight detection unit 34, the vehicle display control device 30 determines whether the driver visually recognizes the external monitor 224 while the vehicle is running. Determine whether or not When the vehicle display control device 30 determines that the driver is visually recognizing the sub-monitor 22 other than the side monitor (Yes in step S31), the process proceeds to step S32. When the vehicle display control device 30 does not determine that the driver is visually recognizing the sub-monitor 22 other than the side monitor (No in step S31), the process of step S31 is executed again.

If it is determined that the driver is visually recognizing the sub-monitor 22 other than the side monitor (Yes in step S31), a warning is output (step S32). More specifically, the vehicular display control device 30 uses the warning control unit 43 to display or output a warning by sound or the like that the driver is inattentive driving.

(effect)
As described above, in the present embodiment, when it is detected that the driver is not looking at the sub-monitor 22, the sub-monitor 22 can display content video for passengers other than the driver. In this embodiment, when it is detected that the driver is not visually recognizing the right side monitor 221 or the left side monitor 222 while the vehicle is running, the right side monitor 221 or the left side monitor 222 is displayed for passengers other than the driver. content video can be displayed. Thus, according to the present embodiment, it is possible to appropriately control the plurality of sub-monitors 22 arranged in the vehicle according to the line of sight of the driver.

In this embodiment, when it is determined that the driver is visually recognizing the sub-monitor 22 while the vehicle is running, the sub-monitor 22 can be caused to display an image that is preferable for the driver to visually recognize. In this embodiment, when it is determined that the driver is visually recognizing the right side monitor 221 or the left side monitor 222 while the vehicle is running, the image is captured by the right rear camera 13 on the right side monitor 221 or the left side monitor 222. An image or an image taken by the left rear camera 14 can be displayed.

In this embodiment, the content video can be superimposed and displayed on a part of the screen of the sub-monitor 22 . In this embodiment, the display control unit 41 can superimpose and display the content video on a part of the screen of the right side monitor 221 or the left side monitor 222 arranged on the passenger seat side. According to this embodiment, it is possible to continuously display the image that the passenger in the front passenger seat was watching on the right side monitor 221 or the left side monitor 222 .

In this embodiment, various operations for the navigation system can be received from each operation unit of the sub-monitor 22 in addition to various operations for the content video.

Each component of the illustrated vehicle display system is functionally conceptual and does not necessarily have to be physically configured as illustrated. In other words, the specific form of each device is not limited to the illustrated one, and all or part of it may be functionally or physically distributed or integrated in arbitrary units according to the processing load and usage conditions of each device. may

The configuration of the vehicular display system is realized by, for example, a program loaded in a memory as software. In the above embodiments, functional blocks realized by cooperation of these hardware or software have been described. That is, these functional blocks can be realized in various forms by hardware only, software only, or a combination thereof.

The components described above include those that can be easily assumed by those skilled in the art and those that are substantially the same. Furthermore, the configurations described above can be combined as appropriate. Also, various omissions, substitutions, or modifications of the configuration are possible without departing from the gist of the present invention.

(Modification)
The determination unit 36 may determine, for example, whether the external monitor 224 is being used in the driver's seat while the vehicle is running. More specifically, the motion recognition unit 35 recognizes that the driver is using the external monitor 224 in the driver's seat as the driver's motion. The action recognition unit 35 performs image processing on the in-vehicle image data to recognize the driver's fingers. The action recognition unit 35 recognizes the external monitor 224 by performing image processing such as pattern matching on the in-vehicle video data. The determination unit 36 determines whether or not the external monitor 224 is being used in the driver's seat while the vehicle is running, based on the vehicle information acquired by the vehicle information acquisition unit 33 and the recognition result of the action recognition unit 35. good too. The determination unit 36 may determine that the external monitor 224 is used in the driver's seat, for example, from the recognized position in the video data of the external monitor 224 . The determination unit 36 may determine that the device is used in the driver's seat, for example, from the recognized size in the video data of the external monitor 224 . When it is determined that the external monitor 224 is being used in the driver's seat while the vehicle is running, after the warning control unit 43 outputs a warning, the operation reception unit 42 may restrict various operations on the external monitor 224. .

The line-of-sight detection unit 34 may detect the line of sight of the passenger sitting in the front passenger seat. In this case, the in-vehicle camera 12 also photographs the face of the passenger sitting in the front passenger seat. When the determination unit 36 determines that the passenger sitting in the front passenger seat is not viewing the sub-monitor 22 while the vehicle is running, the display control unit 41 does not display the content video on the sub-monitor 22 . display. When the content video is superimposed and displayed, the content video is hidden and only the video captured by the right rear camera 13 or the video captured by the left rear camera 14 is displayed.

1 Vehicle Display System 11 Communication Unit 12 In-vehicle Camera 13 Right Rear Camera 14 Left Rear Camera 15 CAN I/F Section 16 Warning Section 21 Main Monitor (First Display Section)
21a display unit 21b operation unit 22 sub monitor (second display unit)
221 right side monitor 221a display unit 222 left side monitor 222a display unit 223 rear seat monitor 223a display unit 223b operation unit 224 external monitor 224a display unit 224b operation unit 30 vehicle display control device 31 communication control unit 32 video data acquisition unit 33 vehicle Information Acquisition Unit 34 Gaze Detection Unit 35 Action Recognition Unit 36 Judgment Unit 41 Display Control Unit 42 Operation Acceptance Unit 43 Warning Control Unit

Claims (5)

a display control unit for displaying an image on a first display unit arranged at a position visible from the driver of the vehicle and a second display unit arranged at a position different from the first display unit;
a line-of-sight detection unit that detects the driver's line of sight;
with
When the display control unit detects that the driver is not visually recognizing the second display unit based on the detection result of the line-of-sight detection unit, to display a content video for
Vehicle display control device. The display control unit displays the content video on a part of the screen of the second display unit,
The vehicle display control device according to claim 1 . an operation reception unit that receives an operation on the content video via a second operation unit arranged on the second display unit;
The vehicle display control device according to claim 1 or 2, comprising: The first display unit is a main monitor that displays a map image for route guidance of a navigation system,
The second display unit is a side monitor,
The vehicle display control device according to any one of claims 1 to 3. a display control step of displaying an image on a first display unit arranged at a position visible to the driver of the vehicle and a second display unit arranged at a position different from the first display unit;
a line-of-sight detection step of detecting the driver's line of sight;
including
In the display control step, when it is detected that the driver is not visually recognizing the second display unit based on the detection result of the line-of-sight detection step, a passenger other than the driver is displayed on the second display unit. to display a content video for
Vehicle display control method.

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