JP-7856027-B2 - Vehicle display device

JP7856027B2JP 7856027 B2JP7856027 B2JP 7856027B2JP-7856027-B2

Inventors

興梠有人
小林佳美
山田勝徳
堂上靖史

Assignees

トヨタ自動車株式会社

Dates

Publication Date: 20260511
Application Date: 20230306

Claims (3)

A display unit fixed to the vehicle, A display controller that controls the operation of the aforementioned display unit, Equipped with, The display controller is configured to simultaneously display on the display a first image showing optical flow and a second image showing the direction of gravity or a horizontal direction perpendicular to the direction of gravity. The second image is a straight line figure that is parallel to the horizontal direction and passes through a predetermined reference point. The display controller is configured to change the display position of the first image so that the height position of the reference point changes in conjunction with the change in the acceleration of the vehicle. The aforementioned first image includes multiple arrows that radiate or converge from a predetermined callout point. The aforementioned reference point coincides with the aforementioned blowout point, The display controller is configured to display the linear figure superimposed on the plurality of arrows on the display unit. The display controller is configured to change the display position of the nozzle point within the display unit in conjunction with the direction of movement and acceleration of the vehicle, and to change the direction of the arrow in conjunction with the vehicle's speed. A vehicle display device characterized by the following features.
A vehicle display device according to claim 1, The aforementioned display unit is The main display area for displaying content images, A support display area is arranged to surround the main display area, It has, The display controller is configured to perform the process of displaying the first image and the second image in the support display area in parallel with the process of displaying the content image in the main display area. A vehicle display device characterized by the following features.
A vehicle display device according to claim 1, The display controller is configured such that, when the rate of change of the first image and the second image exceeds a specified tolerance, the first image and the second image are displayed on the display in a manner in which the changes are less noticeable compared to when the rate of change of the first image and the second image does not exceed the tolerance. A vehicle display device characterized by the following features.

Description

This specification discloses a vehicle display device that displays images on a display unit installed in the vehicle's interior. While a vehicle is in motion, passengers may experience motion sickness. The sensory confusion theory is known as a cause of such motion sickness. This theory posits that motion sickness occurs when conflicting information is received from multiple sensory organs, such as the vestibular system and vision. Here, Patent Document 1 discloses a technology for displaying an indicator on an in-vehicle display that shows the direction of the driver's optical flow. Optical flow refers to a vector indicating the direction of the flow of scenery. According to the technology described in Patent Document 1, occupants can visually perceive the direction of the vehicle's movement. This reduces the discrepancy between visually detected information and information detected by the vestibule, thereby mitigating motion sickness to some extent. Japanese Patent Publication No. 2017-171117 This is a block diagram showing the configuration of a vehicle display device.This figure shows an example of the layout of the display area of a display unit.This figure shows an example of a support image.This figure shows another example of a support image.This figure shows another example of a support image. The configuration of the vehicle display device 10 will be described below with reference to the drawings. Figure 1 is a block diagram showing the configuration of the display device 10. This display device 10 includes a display unit 12, an external camera 20, a tilt sensor 22, and a display controller 14. The display unit 12 is a device that is temporarily or permanently installed inside the vehicle and displays images. The display unit 12 includes, for example, a liquid crystal display, an organic EL display, a projector, or a combination thereof. Alternatively, the display unit 12 may be a display unit mounted in the vehicle as an electrical component. For example, the display unit 12 may be a multimedia display mounted in the passenger compartment to display map information or audio information. Furthermore, the display unit 12 may be a portable display unit usable both inside and outside the vehicle (for example, a display unit integrated into a smartphone). In this case, a holder for detachably holding the display unit 12 is provided inside the vehicle. The display unit 12 is then temporarily fixed to the vehicle by this holder. Figure 2 shows an example of the layout of the display area of the display unit 12. As shown in Figure 2, the display unit 12 includes a support display area 32 for displaying a support image 38. The support image 38 is an image designed to suppress motion sickness in the occupants. This support image 38 includes a first image 40 showing optical flow and a second image 44 showing the direction of gravity or horizontal direction. Details of this support image 38 will be described later. The display unit 12 may further include a main display area 30 for displaying content images 34. The content images 34 are not particularly limited, as long as they are images other than the support images 38. Therefore, the content images 34 may be, for example, videos for entertainment, operation screens for operating electrical components, or map images, etc. As shown in the upper part of Figure 2, the display unit 12 may have a main display area 30 and a support display area 32. In this case, the support display area 32 may be shaped to surround the main display area 30. Also, as shown in the lower part of Figure 2, the support display area 32a may be located inside the main display area 30. Furthermore, the support display area 32b may be located separately from the main display area 30. Moreover, the display unit 12 may have a support display area 32 but lack a main display area 30. The external camera 20 is mounted on the front of the vehicle and captures images of the scenery in front of the vehicle. The captured images are transmitted to the display controller 14 as scenery images. Note that there may be more than one external camera 20. The tilt sensor 22 detects the vehicle's tilt relative to the direction of gravity. This tilt sensor 22 is, for example, an inertial measurement device combining an accelerometer and a gyroscope. The tilt detected by the tilt sensor 22 is transmitted as tilt information to the display controller 14. The display controller 14 controls the operation of the display unit 12. Physically, the display controller 14 is a computer comprising a processor 16 and memory 18. In Figure 1, the display controller 14 is depicted as a single computer. However, the display controller 14 may be configured by combining two or more physically separate computers. Furthermore, part or all of the display controller 14 may be located outside the vehicle. In this case, part or all of the display controller 14 has a communication interface for communicating with at least one of the