Display control method and vehicle

Abstract

To reduce unexpected movement of a sight line of a driver.SOLUTION: A display control method controls displays of a first display device and a second display device which are provided to a vehicle. The first display device displays a translucent screen at a position where a driver can visibly recognize the outside of the vehicle through a window shield. A screen of the second display device exists at a position different from the screen of the first display device. When a position of a driver's sight line detected by a sight line detection device provided to the vehicle does not match a position of the screen of the second display device, the display of the screen of the second display device is further suppressed than that of the first display device.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to a display control method and a vehicle. [Background technology]

[0002] Patent Document 1 discloses a vehicle display device that includes a head-up display that sets a display area on the vehicle's windshield above the driving field of view in front of the driver and displays road information in this display area, a camera that is installed in the vehicle and monitors the road in a specified direction from the vehicle, and control means that outputs images detected by the camera to the head-up display as road information and displays it in the display area on the windshield. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2005-324745 A [Patent Document 2] JP 2009-248812 A [Patent Document 3] JP 2013-256245 A Summary of the Invention [Problem to be solved by the invention]

[0004] In addition to a head-up display, a vehicle is equipped with various display devices such as an IC (Instrument Cluster) and / or a CID (Center Information Display). While a driver should concentrate on driving while the vehicle is running, the driver may abruptly move his / her gaze to the screen of the display device. In order to improve driving safety, it is necessary to reduce the driver's abrupt movement of the gaze.

[0005] An object of the present disclosure is to reduce unexpected eye movement by the driver. [Means for solving the problem]

[0006] A display control method according to one embodiment of the present disclosure is a display control method for controlling the display of a first display device and a second display device equipped in a vehicle, wherein the first display device displays a transparent screen at a position where the driver can see outside the vehicle through the windshield, and the screen of the second display device is located at a position different from that of the first display device, and when the position of the driver's gaze detected by a gaze detection device equipped in the vehicle does not match the position of the screen of the second display device, the display of the screen of the second display device is suppressed more than the display of the screen of the first display device.

[0007] A vehicle according to one embodiment of the present disclosure is a vehicle equipped with a first wheel, a second wheel, a third wheel, and a fourth wheel, and capable of running in a predetermined direction, and is equipped with a first display device, a second display device, a gaze detection device that detects the gaze of a driver of the vehicle, and a display control device that controls the display of the first display device and the second display device, wherein the first display device displays a transparent screen at a position where the driver can see outside the vehicle through the windshield, and the screen of the second display device is located at a different position from the screen of the first display device, and the display control device suppresses the display of the screen of the second display device more than the display of the screen of the first display device when the position of the driver's gaze detected by the gaze detection device does not match the position of the screen of the second display device.

[0008] Furthermore, these comprehensive or specific aspects may be realized by a system, an apparatus, a method, an integrated circuit, a computer program, or a recording medium, or may be realized by any combination of a system, an apparatus, a method, an integrated circuit, a computer program, and a recording medium. Effect of the Invention

[0009] According to the present disclosure, it is possible to reduce the driver's sudden movement of the line of sight. [Brief description of the drawings]

[0010] [Figure 1]FIG. 1 is a block diagram showing a configuration example of a vehicle and a display control system according to a first embodiment. [Diagram 2] FIG. 1 is a diagram showing an example of the interior configuration of a vehicle according to a first embodiment; [Diagram 3] FIG. 1 is a diagram showing an example of information displayed on a screen by each display device according to the first embodiment; [Figure 4] 1 is a flowchart showing an example of a process of a display control device according to a first embodiment. [Diagram 5] FIG. 1 is a diagram showing state transitions of a first display device according to the first embodiment; [Figure 6] FIG. 1 is a diagram showing state transitions of a second display device according to the first embodiment; [Figure 7] FIG. 13 is a diagram showing state transitions of a third display device according to the first embodiment; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, the embodiments of the present disclosure will be described in detail with reference to the drawings as appropriate. However, more detailed description than necessary may be omitted. For example, detailed description of already well-known matters and duplicated description of substantially the same configuration may be omitted. This is to avoid the following description becoming unnecessarily redundant and to facilitate understanding by those skilled in the art. Note that the accompanying drawings and the following description are provided to enable those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

[0012] (Embodiment 1) <Display control system configuration> Fig. 1 is a block diagram showing a configuration example of a vehicle 1 and a display control system 10 according to embodiment 1. Fig. 2 is a diagram showing a configuration example of the interior of the vehicle 1 according to embodiment 1. Fig. 3 is a diagram showing an example of information displayed on a screen by each display device according to embodiment 1.

[0013] As shown in FIG. 1, the vehicle 1 has at least a first wheel 2A, a second wheel 2B, a third wheel 2C, and a fourth wheel 2D, and is capable of running in a predetermined direction using the first wheel 2A, the second wheel 2B, the third wheel 2C, and the fourth wheel 2D.

[0014] 1, a vehicle 1 includes a display control system 10. The display control system 10 includes a first display device 11, a second display device 12, a third display device 13, a gaze detection device 14, and a display control device 15. These devices are connected to an in-vehicle network 16 and can transmit and receive information to and from each other. Examples of the in-vehicle network 16 include a controller area network (CAN), LIN, and FlexRay.

[0015] The first display device 11 displays a transparent screen at a position where the driver can see the scenery outside the vehicle through the windshield 3. The user can see through the screen 21 of the first display device to see outside the vehicle.

[0016] The first display device 11 is, for example, a windshield-projection type HUD (Head-Up Display), and projects a screen onto the windshield 3. The driver can see the semi-transparent screen projected onto the windshield 3 and the scenery outside the vehicle visible through the windshield 3 at the same time.

[0017] The first display device 11 is, for example, a combiner projection type HUD, which projects a screen onto a transparent combiner installed in front of the windshield 3. The driver can see the semi-transparent screen projected onto the combiner and the scenery outside the vehicle seen through the combiner and the windshield 3 at the same time.

[0018] In this way, the driver can see the screen displayed by the first display device 11 without moving his / her line of sight from the front.

[0019] 2, the screen 21 of the first display device displays speed information of the vehicle 1. This allows the driver to check the speed of the vehicle 1 without moving his / her eyes from the front. This allows the driver to drive more safely.

[0020] Furthermore, first information, which is information for avoiding danger while driving, is displayed on the screen 21 of the first display device. As shown in FIG. 3, examples of the first information include the following. -Warning information indicating that another vehicle or obstacle has been detected ahead of vehicle 1 -Warning information indicating short distance between vehicles -Warning information indicating the presence of a motorcycle or pedestrian in the driver's blind spot - Alert information indicating that the driver is drowsy or fatigued - Warning information indicating that there is another vehicle on the rear side of vehicle 1 -Warning information indicating the presence of pedestrians on the crosswalk

[0021] The second display device 12 is, for example, an IC (Instrument Cluster), and is installed, for example, on the dashboard 5 behind the steering wheel 4 below the first display device 11. The screen 22 of the second display device is located at a different position from the screen 21 of the first display device, and is, for example, located lower than the screen 21 of the first display device.

[0022] The screen 22 of the second display device displays second information, which is information related to the safe driving of the vehicle 1. As shown in Fig. 3, examples of the second information include the following. - Notifications indicating that an emergency vehicle is approaching - Notification that vehicle 1's tire pressure is low Notification that the door of vehicle 1 is open Notification information indicating that the driver or passenger is not wearing a seat belt Notification information indicating that fuel (or battery capacity) is low

[0023] In addition, since the speed information of the vehicle 1 is displayed on the screen 21 of the first display device, it does not have to be displayed on the screen 22 of the second display device. This prevents the driver from moving his / her gaze to the screen 22 of the second display device to check the speed of the vehicle 1, and thus inhibits the driver from looking away while driving.

[0024] The third display device 13 is, for example, a CID (Center Information Display), and is installed, for example, on the dashboard 5 between the driver's seat 6 and the passenger seat 7. The screen 23 of the third display device is located at a position different from the screen 21 of the first display device and the screen 22 of the second display device. For example, the screen 23 of the third display device is located farther from the driver's seat 6 than the screen 22 of the second display device.

[0025] The screen 23 of the third display device displays third information, which is information for assisting the driving of the vehicle 1. As shown in Fig. 3, examples of the third information include the following. Navigation information Traffic information Expressway toll information Audio information Air conditioner information Weather information

[0026] The gaze detection device 14 detects the gaze position of the driver. For example, the gaze detection device 14 includes a camera, and detects the gaze position of the driver by the processes of the following steps S11 to S13. (S11) The gaze detection device 14 captures the face of the driver with the camera and generates a facial image. (S12) The gaze detection device 14 analyzes the face image (for example, analyzes the face direction and eye direction, etc.) and detects the gaze position of the driver. (S13) The gaze detection device 14 provides gaze position information including the detected gaze position of the driver to another device. The gaze position is expressed, for example, as two-dimensional coordinates on a virtual plane facing the driver.

[0027] The screen 21 of the first display device can be viewed by the driver without shifting his / her line of sight from the front, so it does not prevent the driver from concentrating on driving. On the other hand, the screen 22 of the second display device or the screen 23 of the third display device cannot be viewed by the driver without shifting his / her line of sight from the front, so it may prevent the driver from concentrating on driving.

[0028] Therefore, the display control device 15 controls the display of at least one screen of the first display device 11, the second display device 12, and the third display device 13, based on the gaze position information received from the gaze detection device 14. The display control device 15 may be realized by an ECU (Electronic Control Unit), a processor, an LSI (Large Scale Integration), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or the like.

[0029] For example, when the gaze position included in the gaze position information does not match the position of the screen 22 of the second display device, the display control device 15 suppresses the display of the screen 22 of the second display device compared to the display of the screen 21 of the first display device. Suppressing the display of the screen 22 of the second display device compared to the display of the screen 21 of the first display device may mean displaying the screen 21 of the first display device without displaying the screen 22 of the second display device, or may mean displaying information on the screen 21 of the first display device without displaying information on the screen 22 of the second display device. This makes it possible to reduce the possibility of the driver being distracted by the display of the screen 22 of the second display device and inadvertently moving his / her gaze to the screen 22 of the second display device when concentrating on driving while looking ahead.

[0030] For example, when the gaze position included in the gaze position information matches the position of the screen 22 of the second display device, the display control device 15 displays the screen 22 of the second display device. This allows the driver, when wanting to see the second information output by the second display device 12, to see the second information simply by moving the gaze to the screen 22 of the second display device.

[0031] For example, when the gaze position included in the gaze position information does not match either the position of the screen 22 of the second display device or the position of the screen 23 of the third display device, the display of the screen 22 of the second display device and the display of the screen 23 of the third display device are both suppressed compared to the display of the screen 21 of the first display device. Suppressing the display of the screen 22 of the second display device and the screen 23 of the third display device compared to the display of the screen 21 of the first display device may mean displaying the screen 21 of the first display device without displaying the screen 22 of the second display device and the screen 23 of the third display device, or may mean displaying information on the screen 21 of the first display device without displaying information on the screen 22 of the second display device and the screen 23 of the third display device. This can reduce the possibility that the driver will be distracted by the display of the screen 22 of the second display device or the screen 23 of the third display device and will inadvertently move his / her gaze to the screen 22 of the second display device or the screen 23 of the third display device when he / she is looking ahead and concentrating on driving.

[0032] For example, when the gaze position included in the gaze position information matches the position of the screen 23 of the third display device, the display control device 15 suppresses the display of the screen 22 of the second display device compared to the display of the screen 23 of the third display device. Suppressing the display of the screen 22 of the second display device compared to the display of the screen 23 of the third display device may mean not displaying the screen 22 of the second display device and displaying the screen 23 of the third display device, or may mean not displaying information on the screen 22 of the second display device and displaying information on the screen 23 of the third display device. This allows the driver to see the third information output by the third display device 13 by moving his / her gaze to the screen 23 of the third display device. In addition, it is possible to reduce the driver being distracted by the display of the screen 22 of the second display device and inadvertently moving his / her gaze to the screen 22 of the second display device.

[0033] For example, when the gaze position included in the gaze position information matches the position of the screen 22 of the second display device, the display control device 15 suppresses the display of the screen 23 of the third display device compared to the display of the screen 22 of the second display device. Suppressing the display of the screen 23 of the third display device compared to the display of the screen 22 of the second display device may mean displaying the screen 22 of the second display device without displaying the screen 23 of the third display device, or may mean displaying information on the screen 23 of the third display device without displaying information on the screen 22 of the second display device. This allows the driver to see the second information output by the second display device 12 by moving his / her gaze to the screen 22 of the second display device. In addition, it is possible to reduce the driver being distracted by the display of the screen 23 of the third display device and accidentally moving his / her gaze to the screen 23 of the third display device.

[0034] In this way, the display control system 10 according to the present embodiment can appropriately present information desired by the driver without preventing the driver from concentrating on driving (i.e., while suppressing the driver from looking away). This will be described in detail below.

[0035] <Display control device processing> 4 is a flowchart showing an example of the processing of the display control device 15 according to Embodiment 1. Next, the processing of the display control device 15 will be described in detail with reference to FIG.

[0036] When detecting that the power supply (or the engine) of the vehicle 1 is ON, the display control device 15 starts the process shown in FIG.

[0037] The display control device 15 causes the first display device 11 to display a screen (S101). That is, the display control device 15 causes the first information to be displayed on the screen 21 of the first display device.

[0038] The display control device 15 determines whether or not the vehicle 1 is stopped based on, for example, the speed information (S102). Note that the display control device 15 may determine whether or not the vehicle 1 is traveling, instead of determining whether or not the vehicle 1 is stopped.

[0039] When the vehicle 1 is stopped (or when the vehicle 1 is not moving) (S102: YES), the display control device 15 displays the screen 22 of the second display device and the screen 23 of the third display device (S103). That is, the display control device 15 displays the second information on the screen 22 of the second display device, and displays the third information on the screen 23 of the third display device. This allows the driver to immediately view the screen 22 of the second display device or the screen 23 of the third display device while the vehicle 1 is stopped. Then, the display control device 15 advances the process to step S109.

[0040] When the vehicle 1 is not stopped (or when the vehicle 1 is moving) (S102: NO), the display control device 15 determines whether the driver's line of sight position matches the position of the screen 22 of the second display device (S104).

[0041] When the driver's line of sight position matches the position of the screen 22 of the second display device (S104: YES), the display control device 15 displays the screen 22 of the second display device and does not display the screen 23 of the third display device (S105). In addition, not displaying the screen 23 of the third display device may mean not displaying the third information on the screen 23 of the third display device, or may mean making the screen 23 of the third display device darker than usual. This allows the driver to obtain the second information by moving his / her line of sight to the screen 22 of the second display device. In addition, it is possible to reduce the driver's distraction from the screen 23 of the third display device. Then, the display control device 15 advances the process to step S109.

[0042] If the driver's line of sight position does not match the position of the screen 22 of the second display device (S104: NO), the display control device 15 determines whether the driver's line of sight position matches the position of the screen 23 of the third display device (S106).

[0043] When the driver's line of sight position matches the position of the screen 23 of the third display device (S106: YES), the display control device 15 displays the screen 23 of the third display device and does not display the screen 22 of the second display device (S107). In addition, not displaying the screen 22 of the second display device may mean not displaying the second information on the screen 22 of the second display device, or may mean making the screen 22 of the second display device darker than usual. This allows the driver to obtain the third information by moving his / her line of sight to the screen 23 of the third display device. In addition, it is possible to reduce the driver's distraction from the screen 22 of the second display device. Then, the display control device 15 advances the process to step S109.

[0044] If the driver's line of sight position does not match either the position of the screen 22 of the second display device or the position of the screen 23 of the third display device (S106: NO), the display control device 15 does not display the screen 22 of the second display device or the screen 23 of the third display device (S108). In addition, not displaying the screen 22 of the second display device or the screen 23 of the third display device may mean not displaying the second information or the third information on the screen 22 of the second display device or the screen 23 of the third display device, respectively, or may mean making the screen 22 of the second display device and the screen 23 of the third display device darker than usual. This reduces the possibility that the driver will be distracted by the display of the screen 22 of the second display device or the screen 23 of the third display device and will inadvertently move his / her line of sight to the screen 22 of the second display device or the screen 23 of the third display device when he / she is looking ahead and concentrating on driving. Then, the display control device 15 advances the process to step S109.

[0045] The display control device 15 determines whether or not the power OFF (or engine OFF) of the vehicle 1 is detected (S109). If the power OFF (or engine OFF) is not detected (S109: NO), the display control device 15 returns the process to step S101, and if the power OFF (or engine OFF) is detected (S109: YES), the display control device 15 ends this process.

[0046] <State transition of the first display device> 5 is a diagram showing state transitions of the first display device 11 according to embodiment 1. The display control device 15 may cause the state of the first display device 11 to transition as shown in FIG.

[0047] When the display control device 15 detects that the power supply (or the engine) of the vehicle 1 is ON while the first display device 11 is in the OFF state 31, the display control device 15 transitions the first display device 11 to the ON state 32 (D101). When the first display device 11 is in the ON state 32, the display control device 15 displays the screen 21 of the first display device. For example, the display control device 15 transmits first information to the first display device 11, or brightens the screen 21 of the first display device.

[0048] When the display control device 15 detects that the power supply of the vehicle 1 (or the engine) is OFF while the first display device 11 is in the ON state 32, the display control device 15 transitions the first display device 11 to the OFF state 31 (D102). When the first display device 11 is in the OFF state 31, the display control device 15 does not display the screen 21 of the first display device. For example, the display control device 15 does not transmit the first information to the first display device 11, or darkens the screen 21 of the first display device.

[0049] <State transition of the second display device> 6 is a diagram showing state transitions of the second display device 12 according to embodiment 1. The display control device 15 may cause the state of the second display device 12 to transition as shown in FIG.

[0050] When the display control device 15 detects that the power supply (or the engine) of the vehicle 1 is ON while the second display device 12 is in the OFF state 41, the display control device 15 transitions the second display device 12 to the stopped state 42 (D201). When the second display device 12 is in the stopped state 42, the display control device 15 displays the screen 22 of the second display device. For example, the display control device 15 transmits second information to the second display device 12, or brightens the screen 22 of the second display device.

[0051] When the display control device 15 detects that the vehicle 1 has started to move and detects that the driver's line of sight matches the position of the screen 22 of the second display device while the second display device 12 is in the stopped state 42, it transitions the second display device 12 to a line-of-sight while driving state 43 (D202). When the second display device 12 is in the line-of-sight while driving state 43, the display control device 15 displays the screen 22 of the second display device. For example, the display control device 15 transmits second information to the second display device 12 or brightens the screen 22 of the second display device.

[0052] When the display control device 15 detects that the vehicle 1 has started to move while the second display device 12 is in the stopped state 42, and detects that the driver's line of sight does not match the position of the screen 22 of the second display device, the display control device 15 transitions the second display device 12 to a no-line-of-sight-while-driving state 44 (D203). When the second display device 12 is in the no-line-of-sight-while-driving state 44, the display control device 15 does not display the screen 22 of the second display device. For example, the display control device 15 does not transmit the second information to the second display device 12, or darkens the screen 22 of the second display device.

[0053] When the display control device 15 detects that the driver's gaze position no longer matches the position of the screen 22 of the second display device (i.e., the driver has averted his gaze) while the second display device 12 is in the line-of-sight while driving state 43, it transitions the second display device 12 to the line-of-sight while driving state 44 (D204).

[0054] When the display control device 15 detects that the driver's gaze position has become consistent with the position of the screen 22 of the second display device (i.e., the driver has turned his gaze) while the second display device 12 is in the no-gaze-while-driving state 44, it transitions the second display device 12 to the gaze-while-driving state 43 (D205).

[0055] When the display control device 15 detects that the vehicle 1 has stopped while the second display device 12 is in the line-of-sight while driving state 43, the display control device 15 transitions the second display device 12 to the stopped state 42 (D206).

[0056] When the display control device 15 detects that the vehicle 1 has stopped while the second display device 12 is in the driving no-gaze state 44, the display control device 15 transitions the second display device 12 to the stopped state 42 (D207).

[0057] When the display control device 15 detects that the power supply of the vehicle 1 (or the engine) is OFF while the second display device 12 is in the stopped state 42, the display control device 15 transitions the second display device 12 to the OFF state 41 (D208). When the second display device 12 is in the OFF state 41, the display control device 15 does not display the screen 22 of the second display device. For example, the display control device 15 does not transmit the second information to the second display device 12, or darkens the screen 22 of the second display device.

[0058] <State transition of the third display device> 7 is a diagram showing state transitions of the third display device 13 according to embodiment 1. The display control device 15 may cause the state of the third display device 13 to transition as shown in FIG.

[0059] When the display control device 15 detects that the power supply (or the engine) of the vehicle 1 is ON while the third display device 13 is in the OFF state 51, the display control device 15 transitions the third display device 13 to the stopped state 52 (D301). When the third display device 13 is in the stopped state 52, the display control device 15 displays the screen 23 of the third display device. For example, the display control device 15 transmits third information to the third display device 13, or brightens the screen 23 of the third display device.

[0060] When the display control device 15 detects that the vehicle 1 has started to move and detects that the driver's line of sight matches the position of the screen 23 of the third display device while the third display device 13 is in the stopped state 52, it transitions the third display device 13 to a line-of-sight while driving state 53 (D302). When the third display device 13 is in the line-of-sight while driving state 53, the display control device 15 displays the screen 23 of the third display device. For example, the display control device 15 transmits third information to the third display device 13 or brightens the screen 23 of the third display device.

[0061] When the display control device 15 detects that the vehicle 1 has started to move and detects that the driver's line of sight does not match the position of the screen 23 of the third display device while the third display device 13 is in the stopped state 52, the display control device 15 transitions the third display device 13 to a no-line-of-sight-while-moving state 54 (D303). When the third display device 13 is in the no-detection-while-moving state 54, the display control device 15 does not display the screen 23 of the third display device. For example, the display control device 15 does not transmit the third information to the third display device 13, or darkens the screen 23 of the third display device.

[0062] When the display control device 15 detects that the driver's gaze position no longer matches the position of the screen 23 of the third display device (i.e., the driver has averted his gaze) while the third display device 13 is in the line of sight while driving state 53, it transitions the third display device 13 to the no-line-of-sight while driving state 54 (D304).

[0063] When the display control device 15 detects that the driver's gaze position has become consistent with the position of the screen 23 of the third display device (i.e., the driver has turned his gaze) while the third display device 13 is in the no-gaze-while-driving state 54, it transitions the third display device 13 to the gaze-while-driving state 53 (D305).

[0064] When the display control device 15 detects that the vehicle 1 has stopped while the third display device 13 is in the line-of-sight while driving state 53, the display control device 15 transitions the third display device 13 to the stopped state 52 (D306).

[0065] When the display control device 15 detects that the vehicle 1 has stopped while the third display device 13 is in the driving no-gaze state 54, the display control device 15 transitions the third display device 13 to the stopped state 52 (D307).

[0066] If the display control device 15 detects that the power supply of the vehicle 1 (or the engine) is OFF while the third display device 13 is in the stopped state 52, the display control device 15 transitions the third display device 13 to the OFF state 51 (D308). When the third display device 13 is in the OFF state 51, the display control device 15 does not display the screen 23 of the third display device. For example, the display control device 15 does not transmit the third information to the third display device 13, or darkens the screen 23 of the third display device.

[0067] Summary of the Disclosure The above description of the embodiments discloses the following techniques.

[0068] <Technology 1> In a display control method for controlling the display of a first display device 11 and a second display device 12 equipped in a vehicle 1, the first display device 11 displays a transparent screen (e.g., a screen 21 of the first display device) at a position where the driver can see outside the vehicle through the windshield 3, and the screen 22 of the second display device is located at a position different from the screen 21 of the first display device, and if the position of the driver's gaze detected by a gaze detection device 14 equipped in the vehicle 1 does not match the position of the screen 22 of the second display device, the display of the screen 22 of the second display device is suppressed more than the display of the screen 21 of the first display device. As a result, if the position of the driver's line of sight does not match the position of the screen 22 of the second display device, the display of the screen 22 of the second display device is suppressed more than the display of the screen 21 of the first display device, thereby reducing the driver's inadvertent movement of his or her line of sight to the screen 22 of the second display device.

[0069] <Technology 2> In the display control method described in Technique 1, the screen 22 of the second display device is located below the screen 21 of the first display device. This can reduce the driver's abrupt movement of his / her gaze to screen 22 of the second display device, which is positioned lower than screen 21 of the first display device.

[0070] <Technology 3> In the display control method described in Technology 1 or 2, suppressing the display of the screen 22 of the second display device compared to the display of the screen 21 of the first display device means not displaying the screen 22 of the second display device and displaying the screen 21 of the first display device. As a result, if the position of the driver's line of sight does not match the position of the screen 22 of the second display device, the screen 22 of the second display device is not displayed, so it is possible to reduce the driver's abrupt movement of his / her line of sight to the screen 22 of the second display device. In other words, it is possible to reduce the driver's inattentive driving.

[0071] <Technology 4> In the display control method described in Technology 1 or 2, suppressing the display of the screen 22 of the second display device compared to the display of the screen 21 of the first display device means that no information is displayed on the screen 22 of the second display device, and information is displayed on the screen 21 of the first display device. As a result, if the position of the driver's line of sight does not match the position of the screen 22 of the second display device, no information is displayed on the screen 22 of the second display device, which reduces the driver's abrupt movement of the line of sight to the screen 22 of the second display device. In other words, it is possible to reduce the driver's inattentive driving.

[0072] <Technology 5> In the display control method described in any one of Techniques 1 to 4, when the position of the driver's gaze detected by the gaze detection device 14 matches the position of the screen 22 of the second display device, the screen 22 of the second display device is displayed. This allows the driver to obtain information provided by the second display device by moving his / her line of sight to the screen 22 of the second display device.

[0073] <Technology 6> In the display control method described in any one of Techniques 1 to 5, when the vehicle 1 is stopped, the screen 22 of the second display device is displayed regardless of whether the position of the driver's gaze detected by the gaze detection device 14 matches the position of the screen 22 of the second display device. This allows the driver to obtain information provided by the second display device 12 while the vehicle 1 is stopped.

[0074] <Technology 7> In the display control method described in any one of Techniques 1 to 6, speed information of the vehicle 1 is displayed on the screen 21 of the first display device, and the speed information is not displayed on the screen 22 of the second display device. As a result, when checking the speed of the vehicle 1, the driver looks at the screen 21 of the first display device instead of the screen 22 of the second display device, allowing the driver to concentrate on driving without taking his or her eyes off the road (i.e., without looking away from the road).

[0075] <Technology 8> In the display control method described in any one of Techniques 1 to 7, when the vehicle 1 further includes a third display device 13, the screen 23 of the third display device is located farther away from the driver's seat (e.g., the driver's seat 6) than the screen 22 of the second display device, and the position of the driver's gaze detected by the gaze detection device 14 does not match either the position of the screen 22 of the second display device or the position of the screen 23 of the third display device, the display of the screen 22 of the second display device and the display of the screen 23 of the third display device are both suppressed more than the display of the screen 21 of the first display device. As a result, when the position of the driver's line of sight does not match either the position of the screen 22 of the second display device or the position of the screen 23 of the third display device, the display of the screen 22 of the second display device and the display of the screen 23 of the third display device are both suppressed more than the display of the screen 21 of the first display device, so that it is possible to reduce the driver's abrupt movement of the line of sight to the screen 22 of the second display device or the screen 23 of the third display device. In other words, it is possible to reduce the driver's inattentive driving.

[0076] <Technology 9> In the display control method described in Technology 8, when the position of the driver's gaze detected by the gaze detection device 14 matches the position of the screen 23 of the third display device, the display of the screen 22 of the second display device is suppressed more than the display of the screen 23 of the third display device, and when the position of the driver's gaze detected by the gaze detection device 14 matches the position of the screen 22 of the second display device, the display of the screen 23 of the third display device is suppressed more than the display of the screen 22 of the second display device. This allows the driver to obtain information provided by the third display device 13 by moving his / her gaze to the screen 23 of the third display device, and to obtain information provided by the second display device 12 by moving his / her gaze to the screen 22 of the second display device.

[0077] <Technology 10> In the display control method described in Technology 8 or 9, information for avoiding driving hazards is displayed on the screen 21 of the first display device, information related to safe driving of the vehicle is displayed on the screen 22 of the second display device, and information for assisting the driving of the vehicle 1 is displayed on the screen 23 of the third display device. This allows the driver to obtain information for avoiding driving dangers from the screen 21 of the first display device, obtain information related to safe driving of the vehicle from the screen 22 of the second display device, and obtain information for assisting the driving of the vehicle 1 from the screen 23 of the third display device.

[0078] <Technology 11> A vehicle 1 having a first wheel 2A, a second wheel 2B, a third wheel 2C, and a fourth wheel 2D and capable of traveling in a predetermined direction is equipped with a first display device 11, a second display device 12, a gaze detection device 14 that detects the gaze of the driver of the vehicle 1, and a display control device 15 that controls the display of the first display device 11 and the second display device 12, the first display device 11 displays a transparent screen (e.g., the screen 21 of the first display device) at a position where the driver can see outside the vehicle through the windshield 3, and the screen 22 of the second display device is located at a different position from the screen 21 of the first display device, and the display control device 15 suppresses the display of the screen 22 of the second display device more than the display of the screen 21 of the first display device when the position of the driver's gaze detected by the gaze detection device 14 does not match the position of the screen 22 of the second display device. As a result, if the position of the driver's line of sight does not match the position of the screen 22 of the second display device, the display of the screen 22 of the second display device is suppressed more than the display of the screen 21 of the first display device, thereby reducing the driver's inadvertent movement of his or her line of sight to the screen 22 of the second display device.

[0079] <Technology 12> In the vehicle 1 described in Technique 11, the screen 22 of the second display device is located lower than the screen 21 of the first display device. This can reduce the driver's abrupt movement of his / her gaze to screen 22 of the second display device, which is positioned lower than screen 21 of the first display device.

[0080] <Technology 13> In the vehicle 1 described in Technology 11 or 12, suppressing the display of the screen 22 of the second display device compared to the display of the screen 21 of the first display device means not displaying the screen 22 of the second display device and displaying the screen 21 of the first display device. As a result, if the position of the driver's line of sight does not match the position of the screen 22 of the second display device, the screen 22 of the second display device is not displayed, so it is possible to reduce the driver's abrupt movement of his / her line of sight to the screen 22 of the second display device. In other words, it is possible to reduce the driver's inattentive driving.

[0081] <Technology 14> In the vehicle 1 described in Technology 11 or 12, suppressing the display on the screen 22 of the second display device compared to the display on the screen 21 of the first display device means that no information is displayed on the screen 22 of the second display device, and information is displayed on the screen 21 of the first display device. As a result, if the position of the driver's line of sight does not match the position of the screen 22 of the second display device, no information is displayed on the screen 22 of the second display device, which reduces the driver's abrupt movement of the line of sight to the screen 22 of the second display device. In other words, it is possible to reduce the driver's inattentive driving.

[0082] <Technology 15> In a vehicle 1 described in any one of Techniques 11 to 14, the display control device 15 displays the screen 22 of the second display device when the position of the driver's gaze detected by the gaze detection device 14 matches the position of the screen 22 of the second display device. This allows the driver to obtain information provided by the second display device by moving his / her line of sight to the screen 22 of the second display device.

[0083] <Technology 16> In the vehicle 1 according to any one of technical fields 11 to 15, the display control device 15 is When the vehicle 1 is stopped, the screen 22 of the second display device is displayed regardless of whether the position of the driver's gaze detected by the gaze detection device 14 matches the position of the screen 22 of the second display device. This allows the driver to obtain information provided by the second display device 12 while the vehicle 1 is stopped.

[0084] <Technology 17> In the vehicle 1 described in Techniques 11 to 16, the display control device 15 displays speed information of the vehicle 1 on the screen 21 of the first display device, and does not display the speed information on the screen 22 of the second display device. As a result, when checking the speed of the vehicle 1, the driver looks at the screen 21 of the first display device instead of the screen 22 of the second display device, allowing the driver to concentrate on driving without taking his or her eyes off the road (i.e., without looking away from the road).

[0085] <Technology 18> In a vehicle 1 described in any one of Techniques 11 to 17, a third display device 13 is further provided, and a screen 23 of the third display device is located farther away from the driver's seat (e.g., driver's seat 6) than the screen 22 of the second display device, and when the position of the driver's gaze detected by the gaze detection device 14 does not match either the position of the screen 22 of the second display device or the position of the screen 23 of the third display device, the display control device 15 suppresses the display of both the screen 22 of the second display device and the screen 23 of the third display device more than the display of the screen 21 of the first display device. As a result, when the position of the driver's line of sight does not match either the position of the screen 22 of the second display device or the position of the screen 23 of the third display device, the display of the screen 22 of the second display device and the display of the screen 23 of the third display device are both suppressed more than the display of the screen 21 of the first display device, so that it is possible to reduce the driver's abrupt movement of the line of sight to the screen 22 of the second display device or the screen 23 of the third display device. In other words, it is possible to reduce the driver's inattentive driving.

[0086] <Technology 19> In the vehicle 1 described in Technology 18, when the position of the driver's gaze detected by the gaze detection device 14 matches the position of the screen 23 of the third display device, the display control device 15 suppresses the display of the screen 22 of the second display device more than the display of the screen 23 of the third display device, and when the position of the driver's gaze detected by the gaze detection device 14 matches the position of the screen 22 of the second display device, the display control device 15 suppresses the display of the screen 23 of the third display device more than the display of the screen 22 of the second display device. This allows the driver to obtain information provided by the third display device 13 by moving his / her gaze to the screen 23 of the third display device, and to obtain information provided by the second display device 12 by moving his / her gaze to the screen 22 of the second display device.

[0087] <Technology 20> In the vehicle 1 described in Technology 18 or 19, the display control device 15 displays information for avoiding driving hazards on the screen 21 of the first display device, displays information related to safe driving of the vehicle on the screen 22 of the second display device, and displays information for assisting the driving of the vehicle on the screen 23 of the third display device. This allows the driver to obtain information for avoiding driving dangers from the screen 21 of the first display device, obtain information related to safe driving of the vehicle from the screen 22 of the second display device, and obtain information for assisting the driving of the vehicle 1 from the screen 23 of the third display device.

[0088] Although the embodiments have been described above with reference to the accompanying drawings, the present disclosure is not limited to such examples. It is clear that a person skilled in the art can conceive of various modifications, corrections, substitutions, additions, deletions, and equivalents within the scope of the claims, and it is understood that these also belong to the technical scope of the present disclosure. In addition, the components in the above-mentioned embodiments may be arbitrarily combined within the scope of the invention. [Industrial Applicability]

[0089] The technology of the present disclosure is useful for vehicles equipped with multiple display devices inside the vehicle. [Explanation of symbols]

[0090] 1 vehicle 2A 1st wheel 2B 2nd wheel 2C 3rd wheel 2D 4th wheel 3. Windshield 4 Handle 5. Dashboard 6 Driver's seat 7 Passenger seat 10 Display Control System 11 1st display device 12 2nd display device 13 Third display device 14. Eye gaze detection device 15 Display control device 16 In-vehicle network 21 Screen of the first display device 22 Screen of the second display device 23 Screen of the third display device 31 OFF state 32 ON state 41 OFF state 42 Stopped state 43 Driving with line of sight 44 No line of sight while driving 51 OFF state 52 Stopped state 53 Driving with line of sight 54 No line of sight while driving

Claims

1. A display control method for controlling display of a first display device and a second display device provided in a vehicle, comprising: the first display device displays a transparent screen at a position where the driver can see outside the vehicle through a windshield, the screen of the second display device is located at a different position from the screen of the first display device; A display control method for suppressing display of a screen of the second display device compared to display of a screen of the first display device when a position of the line of sight of a driver detected by a line of sight detection device provided in the vehicle does not match a position of a screen of the second display device, the vehicle further comprises a third display device; The screen of the third display device is located farther from the driver's seat than the screen of the second display device, when the position of the line of sight of the driver detected by the line of sight detection device does not match either the position of the screen of the second display device or the position of the screen of the third display device, suppressing the display of the screen of the second display device and the display of the screen of the third display device more than the display of the screen of the first display device, When the vehicle is stopped, the screen of the second display device is displayed regardless of whether the position of the driver's line of sight detected by the line of sight detection device matches the position of the screen of the second display device. Display control method.

2. The display control method according to claim 1 , The screen of the second display device is located below the screen of the first display device. Display control method.

3. The display control method according to claim 1 , Suppressing the display of the screen of the second display device compared to the display of the screen of the first display device means not displaying the screen of the second display device and displaying the screen of the first display device. Display control method.

4. The display control method according to claim 1 , Suppressing the display of the screen of the second display device compared to the display of the screen of the first display device means not displaying information on the screen of the second display device and displaying information on the screen of the first display device. Display control method.

5. The display control method according to claim 1 , When the position of the driver's line of sight detected by the line of sight detection device matches the position of the screen of the second display device, the screen of the second display device is displayed. Display control method.

6. The display control method according to claim 1 , Displaying speed information of the vehicle on a screen of the first display device; The speed information is not displayed on the screen of the second display device. Display control method.

7. The display control method according to claim 1 , When the position of the line of sight of the driver detected by the line of sight detection device matches the position of the screen of the third display device, the display of the screen of the second display device is suppressed more than the display of the screen of the third display device, When the position of the line of sight of the driver detected by the line of sight detection device matches the position of the screen of the second display device, the display of the screen of the third display device is suppressed more than the display of the screen of the second display device. Display control method.

8. The display control method according to claim 1 , Displaying information for avoiding danger while driving on a screen of the first display device; Displaying information related to safe driving of the vehicle on a screen of the second display device, displaying information for assisting driving of the vehicle on a screen of the third display device; Display control method.

9. A vehicle including a first wheel, a second wheel, a third wheel, and a fourth wheel, and capable of traveling in a predetermined direction, A display device includes a first display device, a second display device, a gaze detection device that detects a gaze of a driver of the vehicle, and a display control device that controls display of the first display device and the second display device, the first display device displays a transparent screen at a position where the driver can see outside the vehicle through a windshield, the screen of the second display device is located at a different position from the screen of the first display device; The display control device suppresses display of the screen of the second display device compared to display of the screen of the first display device when the position of the line of sight of the driver detected by the line of sight detection device does not match the position of the screen of the second display device. Further comprising a third display device; The screen of the third display device is located farther from the driver's seat than the screen of the second display device, The display control device includes: when the position of the line of sight of the driver detected by the line of sight detection device does not match either the position of the screen of the second display device or the position of the screen of the third display device, suppressing the display of the screen of the second display device and the display of the screen of the third display device more than the display of the screen of the first display device, When the vehicle is stopped, the screen of the second display device is displayed regardless of whether the position of the driver's line of sight detected by the line of sight detection device matches the position of the screen of the second display device. vehicle.

10. 10. A vehicle as claimed in claim 9, The screen of the second display device is located below the screen of the first display device. vehicle.

11. 10. A vehicle as claimed in claim 9, Suppressing the display of the screen of the second display device compared to the display of the screen of the first display device means not displaying the screen of the second display device and displaying the screen of the first display device. vehicle.

12. 10. A vehicle as claimed in claim 9, Suppressing the display of the screen of the second display device compared to the display of the screen of the first display device means not displaying information on the screen of the second display device and displaying information on the screen of the first display device. vehicle.

13. 10. A vehicle as claimed in claim 9, The display control device includes: When the position of the driver's line of sight detected by the line of sight detection device matches the position of the screen of the second display device, the screen of the second display device is displayed. vehicle.

14. 10. A vehicle as claimed in claim 9, The display control device includes: Displaying speed information of the vehicle on a screen of the first display device; The speed information is not displayed on the screen of the second display device. vehicle.

15. 10. A vehicle as claimed in claim 9, The display control device includes: When the position of the line of sight of the driver detected by the line of sight detection device matches the position of the screen of the third display device, the display of the screen of the second display device is suppressed more than the display of the screen of the third display device, When the position of the line of sight of the driver detected by the line of sight detection device matches the position of the screen of the second display device, the display of the screen of the third display device is suppressed more than the display of the screen of the second display device. vehicle.

16. 10. A vehicle as claimed in claim 9, The display control device includes: Displaying information for avoiding danger while driving on a screen of the first display device; Displaying information related to safe driving of the vehicle on a screen of the second display device, displaying information for assisting driving of the vehicle on a screen of the third display device; vehicle.

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