Head-up display device

Abstract

To provide the display of a head-up display device which can display information in a wider display region and can secure the safety when an owned vehicle has a crash accident.SOLUTION: A head-up display device 10 includes a movable and translucent display 12 covering the head part H of a driver who is driving a vehicle. The display 12 displays support information for supporting driving of the vehicle as augmented reality, and the display 12 is stored when a crash of the vehicle is detected or predicted.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a head-up display device. [Background technology]

[0002] Patent Document 1 discloses a technique related to a head-up display device. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2022-119623 Summary of the Invention [Problem to be solved by the invention]

[0004] Conventional head-up display devices mounted on vehicles have a problem in that the area in which information can be displayed on the display is limited.

[0005] An object of the present disclosure is to enable information to be displayed in a wider display area on the display of a head-up display device, while also ensuring safety in the event of a collision of the host vehicle. [Means for solving the problem]

[0006] A head-up display device according to the present disclosure includes: a movable and transparent display that covers the head of a driver who drives the vehicle; displaying, on the display, assistance information for assisting driving of the vehicle as augmented reality; When a collision of the vehicle is detected or predicted, the display is retracted. [Effects of the Invention]

[0007] According to the present disclosure, information can be displayed in a wider display area on the display of a head-up display device, and safety in the event of a collision of the vehicle can also be ensured. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a schematic diagram illustrating an example of a schematic configuration of a head-up display device according to an embodiment of the present disclosure. [Figure 2] 2 is a schematic diagram showing an example of a configuration corresponding to the head-up display device of FIG. 1, viewed from a different angle. [Figure 3] 2 is a schematic diagram showing an example of information displayed on a display of the head-up display device of FIG. 1. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, an embodiment of the present disclosure will be described with reference to the drawings.

[0010] FIG. 1 is a schematic diagram showing an example of a schematic configuration of a head-up display device 10 according to an embodiment of the present disclosure. FIG. 1 shows an example of how the head-up display device 10 looks when viewed from the side of a driver driving a vehicle. FIG. 2 is a schematic diagram showing an example of a configuration corresponding to the head-up display device 10 of FIG. 1 when viewed from a different angle. FIG. 2 shows an example of how the head-up display device 10 looks when viewed from above the driver driving a vehicle. An example of the configuration and operation of the head-up display device 10 according to an embodiment of the present disclosure will be mainly described with reference to FIGS. 1 and 2.

[0011] The head-up display device 10 has a pair of arms 11 and a display 12 attached to one end of the pair of arms 11.

[0012] Each of the pair of arms 11 is made of any resin material or metal material. Each of the pair of arms 11 extends linearly. One end of each of the pair of arms 11 is attached to each end of the display 12. The other end of each of the pair of arms 11 is attached to the roof R1 of the vehicle. Each of the pair of arms 11 rotates between the roof R1 and the headrest R2 of the driver's seat so that one end describes an arc, with the attachment point on the roof R1 as a fulcrum. The pair of arms 11 are driven, for example, hydraulically.

[0013] The display 12 may be any display having transparency. For example, the display 12 may be a flexible display that is flexible and can be bent. The flexible display may be of any type, such as an electronic paper type or an organic electroluminescence type.

[0014] 1, the pair of arms 11 and the display 12 are stored in a standby position along the roof R1 of the vehicle when the driver is not seated in the vehicle seat. The head-up display device 10 automatically unfolds the display 12 when an arbitrary sensor such as a driver monitor detects that the driver has gotten in and sat in the seat, or when the driver performs a specific operation in the seat.

[0015] More specifically, the head-up display device 10 places a movable display 12 in its operating position so as to cover the head H of a driver driving a vehicle. The display 12 moves from a standby position on the roof R1 to the operating position in conjunction with the movement of a pair of arms 11, one end of which rotates in an arc from the roof R1 to the headrest R2. As shown in FIG. 2 , when the display 12 is in the operating position, it is positioned in a curved state relative to the driver's head H. In the operating position, the display 12 surrounds the front side of the driver's head H by 180°. The driver can view the display screen on the display 12 throughout his or her entire field of vision.

[0016] The head-up display device 10 processes information to be displayed on the display 12 based on a processing circuit provided therein, which may include a general-purpose processor such as a CPU or a GPU, or a processor including a dedicated processor specialized for a particular process. "CPU" is an abbreviation for Central Processing Unit. "GPU" is an abbreviation for Graphics Processing Unit. More specifically, the head-up display device 10 displays various contents on the display 12.

[0017] Fig. 3 is a schematic diagram showing an example of information displayed on the display 12 of the head-up display device 10 of Fig. 1. Fig. 3 is a schematic diagram showing an image from the driver's first-person perspective when the display 12 is placed in an operating position relative to the driver seated in the vehicle seat. The head-up display device 10 displays, for example, assistance information that assists the driver in driving the vehicle as augmented reality on the display 12.

[0018] The head-up display device 10 displays information about an object, such as a pedestrian moving in front of the vehicle, detected by a sensor attached to the vehicle, as a danger display D1 on the display 12. For example, the head-up display device 10 displays an icon on the display 12 as the danger display D1, informing the driver that the vehicle may collide with the pedestrian detected by the vehicle's sensor.

[0019] The head-up display device 10 displays information related to communication by a communication module attached to the vehicle as communication information D2 on the display 12. For example, the head-up display device 10 displays an icon that notifies the driver that the reception status of communication radio waves is good on the display 12 as the communication information D2.

[0020] The head-up display device 10 displays the speed of the vehicle as vehicle information D3 on the display 12. For example, the head-up display device 10 displays an icon on the display 12 as vehicle information D3 to inform the driver that the current speed of the vehicle is 20 km / h.

[0021] The head-up display device 10 displays route guidance to a destination set by the driver using a car navigation system as navigation information D4 on the display 12. For example, the head-up display device 10 displays an icon, such as an arrow, on the display 12 as navigation information D4 to inform the driver of the direction in which the vehicle should proceed toward the destination.

[0022] In addition, the head-up display device 10 may display on the display 12 a cancel button D5 for canceling the screen display on the display 12.

[0023] The head-up display device 10 is not limited to the above information and may display any other information on the display 12. For example, the head-up display device 10 may display information related to a multi-information display at the driver's seat on the display 12.

[0024] The head-up display device 10 transmits driver input operations on information displayed on the display 12 as signals to the processing circuit via an arbitrary input interface. The input interface may include, for example, operation buttons attached to a steering wheel operated by the driver. The input interface may also include, for example, an arbitrary sensor such as a driver monitor that detects operations by the driver in space as gestures by the driver. The input interface may also include, for example, a touch panel formed integrally with the display 12.

[0025] The head-up display device 10 retracts the display 12 when it detects or predicts a vehicle collision. More specifically, when it detects that the host vehicle has collided with an object, such as another vehicle or a pedestrian, the head-up display device 10 instantly retracts the display 12 to a standby position along the roof R1 of the host vehicle. The head-up display device 10 instantly retracts the display 12 so as not to interfere with the deployment of an airbag when the host vehicle collides with the object. Similarly, when it predicts that the host vehicle will collide with an object, such as another vehicle or a pedestrian, the head-up display device 10 retracts the display 12 to a standby position along the roof R1 of the host vehicle. The head-up display device 10 retracts the display 12 so as not to interfere with the deployment of an airbag when the host vehicle subsequently collides with the object.

[0026] According to the head-up display device 10 of the embodiment described above, information can be displayed in a wider display area on the display 12, and safety in the event of a collision of the host vehicle can also be ensured. The head-up display device 10 can display a screen on the display 12 so as to cover the entire field of vision of the driver by having the display 12 cover the head H of the driver who drives the vehicle. This allows the driver to view the displayed information in a wider display area on the display 12. In addition, the head-up display device 10 retracts the display 12 when it detects or predicts a vehicle collision, thereby not interfering with the deployment of airbags in an emergency and ensuring safety in the event of a collision of the host vehicle.

[0027] To solve the problem of a narrow display area in a conventional in-vehicle head-up display, other conventional technologies such as turning each glass of a vehicle into a display and smart glasses are known. Compared to these other conventional technologies, the head-up display device 10 can reduce vehicle costs and improve driver comfort.

[0028] For example, a windshield display is known that utilizes the windshield as a transparent display and can display various information superimposed on reality. This technology can be applied not only to the windshield but also to side windows. However, it requires an extra-large display, which increases vehicle costs. In addition, while a driver can easily check information displayed on the front or driver's side window, a display on the passenger side window may be difficult to check due to the distance to the display position or the presence of a passenger. In addition, it is difficult to display information in three dimensions. Furthermore, a display that is too large increases the burden on the driver who has to check the information.

[0029] For example, smart glasses are known that display information optically or electronically on glasses, allowing any information to be displayed anywhere, superimposed on reality. While such technology can display information spherically, it requires the driver to put on and take off the glasses themselves, which increases the effort required for putting on and taking off the glasses. If the driver forgets to put on the smart glasses, it becomes difficult to provide the necessary information. The fact that some drivers may have to wear double glasses is also one of the factors that increase the burden on the driver.

[0030] In a head-up display device 10 according to an embodiment of the present disclosure, a transparent display 12 that covers the driver's peripheral vision is mounted in the driver's seat, and images are displayed electronically, for example. As a result, the head-up display device 10 eliminates the inconvenience of wearing the display 12, which is a problem with the other conventional technologies described above, and enables a 180-degree augmented reality display limited to the driver. The head-up display device 10 can eliminate the inconvenience of wearing the display 12 by automatically unfolding it. For example, the head-up display device 10 can detect the presence of the driver and automatically unfold the display 12, eliminating the need for the driver to actively move the display 12 into an operating position each time. This reduces the likelihood that the driver will forget to wear the display 12.

[0031] When the display 12 includes a flexible display that is flexible and can be bent, the flexible material used for the display 12 also reduces the possibility of damage to the display 12 itself, thereby further improving safety in the event of a collision of the vehicle.

[0032] The head-up display device 10 displays information related to the multi-information display at the driver's seat on the display 12, thereby making it possible to display other information in the space around the steering wheel or to utilize the space in a manner other than displaying information.

[0033] It will be apparent to those skilled in the art that the present disclosure may be embodied in other specific forms other than the above-described embodiments without departing from the spirit or essential characteristics thereof. Therefore, the foregoing description is illustrative and not limiting. The scope of the disclosure is defined not by the foregoing description but by the appended claims. All modifications within the range of equivalents of any modifications are intended to be embraced therein.

[0034] For example, the shape, size, arrangement, orientation, and number of each of the above-described components are not limited to those shown in the above description and drawings. The shape, size, arrangement, orientation, and number of each component may be configured arbitrarily as long as the function can be realized. The components of the head-up display device 10 shown in the drawings are functional concepts, and the specific form of each component is not limited to those shown in the drawings. [Explanation of symbols]

[0035] 10 Head-up display device 11 Arm 12 Display D1 Danger Sign D2 Communication Information D3 Vehicle Information D4 Navigation Information D5 Release button H head R1 Roof R2 headrest

Claims

[Claim 1] a movable and transparent display that covers the head of a driver who drives the vehicle; displaying, on the display, assistance information for assisting driving of the vehicle as augmented reality; storing the display when a collision of the vehicle is detected or predicted; Head-up display device.

Images