Display system

Abstract

To provide a display system which is excellent in information transmission property.SOLUTION: A display system includes display parts 8 and 9 for displaying a set image 99 which is an image for making a user 4 visually recognize a set value of an own vehicle 1, and a control part 40 which receives the set value from the user 4 and controls the state of the set image 99 displayed on the display parts 8 and 9, wherein the set image 99 has a first image E1 in appearance viewed from a first visual line in a visual line 4a in which the user 4 views a front side from the own vehicle 1, and a second image E2 in appearance viewed from a second visual line at a position different from the position of the first visual line, and the control part 40 switches the set image 99 from the first image E1 to the second image E2, when the set value is changed.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present disclosure relates to a display system for use in vehicles and the like. [Background Art]

[0002] Conventionally, in a vehicle equipped with an adaptive cruise control function (hereinafter appropriately referred to as ACC), there is a system that displays, on a display device such as a meter display or a head-up display, ACC set values including the vehicle speed of the host vehicle and the distance to a preceding vehicle, in response to an input operation by a user such as a driver. [Prior Art Literature] [Patent Literature]

[0003] [Patent Literature 1] Japanese Unexamined Patent Application Publication No. 2017-041126 [Summary of the Invention] [Problem to be Solved by the Invention]

[0004] Input of these set values is sometimes performed while the host vehicle is traveling, and accordingly, display devices are increasingly required to transmit setting information to a driver with higher visibility.

[0005] The present disclosure has been made in consideration of such circumstances, and an object of the present disclosure is to provide a display system excellent in information transmittance. [Means for Solving the Problem]

[0006] The display system 10 of this disclosure includes display units 8 and 9 that display a setting image 99, which is an image that allows a user 4 to visually confirm the setting value of the vehicle 1, and a control unit 40 that receives the setting value from the user 4 and controls the state of the setting image 99 displayed on the display units 8 and 9. The setting image 99 has a first image E1, which is the view from a first line of sight 4a, where the user 4 looks forward from the vehicle 1, and a second image E2, which is the view from a second line of sight at a position different from the first line of sight. When the setting value is changed, the control unit 40 switches the setting image 99 from the first image E1 to the second image E2. The second line of sight is located above the first line of sight, the first line of sight is the line of sight of the user 4 looking forward from the vehicle 1, the display units 8 and 9 include a first display unit 8 that is visible at a first display distance d1 relative to the first line of sight of the user 4, and a second display unit 9 that is visible at a second display distance d2 greater than the first display distance d1 relative to the line of sight of the user 4, and the control unit moves the setting image 99 from the second display unit 9 to the first display unit 8. It is characterized by the following: [Brief explanation of the drawing]

[0007] [Figure 1] A diagram showing an example of the system configuration of the display system in the first embodiment of this disclosure. [Figure 2] A diagram showing an example of the display using the two indicators of the above embodiment. [Figure 3] A diagram showing the ACC settings screen of the same embodiment as above. [Figure 4] A diagram showing the line of sight to the ACC setting screen in the same embodiment as above. [Figure 5] This figure shows the transition state of the ACC setting screen in the same embodiment as above. [Figure 6] This figure shows the transition state of the ACC setting screen in the same embodiment as above. [Figure 7] This figure shows the transition state of the ACC setting screen in the same embodiment as above. [Figure 8] A diagram showing the ACC setting screen of the display system in the second embodiment of this disclosure. [Figure 9] A diagram showing the ACC setting screen of the display system in the third embodiment of this disclosure. [Modes for carrying out the invention]

[0008] Embodiments of the display system of this disclosure will be described with reference to the attached drawings. The display system of this disclosure can be applied to display systems mounted on vehicles such as automobiles and motorcycles, as well as on ships, agricultural machinery, and construction machinery. In this embodiment, the display system of this disclosure will be described using an example in which the display system of this disclosure is mounted on a vehicle and has two head-up displays (HUDs) that display required information based on various information acquired from the vehicle.

[0009] In the following explanation, "front," "rear," "up," "down," "right," and "left" follow the definitions "Fr.", "Re.", "To.", "Bo.", "R," and "L" in the diagram. Note that "front" indicates the direction that the driver (user) 4 sitting in the driver's seat is facing (the direction of travel of the vehicle 1).

[0010] (First Embodiment) The display system 10 is mounted within the instrument panel 2 of the vehicle 1. The display system 10 includes an upper HUD (first display) 20, a lower HUD (second display) 30, and a main control unit (control unit) 40.

[0011] The upper HUD 20 is positioned in front of the steering wheel 5 and projects display light L1 onto a transparent area formed in the windshield 3 in front of the driver 4 of the vehicle 1. The reflected display light L1 is reflected back towards the driver 4 by the windshield 3, allowing the driver 4 to see an image formed by a virtual image (first virtual image) V1 in front of the windshield 3. The image displayed by the upper HUD 20 is displayed, for example, within a virtual upper HUD display area (first display area) 8 in Figure 2, and is displayed superimposed on the forward scenery such as the road surface for viewing.

[0012] The lower HUD 30 is positioned further forward than the upper HUD 20 (away from the driver 4) and illuminates the light-shielding portion 3a formed on the outer periphery of the transparent part of the windshield 3 with display light L2. The light-shielding portion 3a is made of a light-shielding color such as black ceramics. The light-shielding portion 3a is formed to prevent deterioration of the adhesive that fixes the windshield 3 to the vehicle 1 due to sunlight, to conceal the adhesive, and to improve the design. The reflected display light L2 is reflected back towards the driver 4 by the light-shielding portion 3a, allowing the driver 4 to see an image formed by a virtual image (second virtual image) V2 in front of the windshield 3. The image displayed by the lower HUD 30 is displayed in a virtual lower HUD display area (second display area) 9, which is different from the upper HUD display area 8 in Figure 2, and is visible in front of the light-shielding portion 3a.

[0013] The upper HUD 20 displays an image such that the virtual image V1 is visible at a distance (first display distance) d1 in the vertical direction relative to the driver's line of sight 4a, which is assumed to be normal during driving. The lower HUD 30 displays an image such that the virtual image V2 is visible at a distance (second display distance) d2 greater than distance d1 relative to the driver's line of sight 4a.

[0014] In other words, the distance driver 4 moves to shift their gaze 4a to the image related to display light L2 is greater than the distance driver 4 moves to shift their gaze 4a to the image related to display light L1. To put it another way, the angle θ2 formed by the direction of gaze 4a and the direction of gaze for viewing the image related to virtual image V2 is greater than the angle θ1 formed by the direction of gaze 4a and the direction of gaze for viewing the image related to virtual image V1. Therefore, driver 4 views the image displayed by the lower HUD 30 from a position further from gaze 4a than the image displayed by the upper HUD 20, and below the image displayed by the upper HUD 20.

[0015] Furthermore, in the present embodiment, the upper HUD 20 forms a virtual image V1 further forward than the virtual image V2 formed by the lower HUD 30. That is, the image formed by the virtual image V1 is visually recognized by the driver 4 at a position farther away in the front-rear direction, and the image formed by the virtual image V2 is visually recognized by the driver 4 at a position closer in the front-rear direction.

[0016] The display surfaces serving as the upper HUD display area 8 and the lower HUD display area 9 are surfaces having four sides: upper, lower, left and right. For example, the lower sides 8a, 9a and the upper sides 8b, 9b are sides substantially parallel to the left-right direction. The left sides 8c, 9c and the right sides 8d, 9d are surfaces set at an arbitrary angle with respect to the up-down direction. For example, for the display surface, the left sides 8c, 9c and the right sides 8d, 9d may be a surface along the up-down direction (a surface perpendicular to the road surface), an inclined surface inclined at a predetermined angle with respect to the up-down direction (a surface inclined with respect to the road surface), or a surface along the front-rear direction (a surface superimposed (substantially parallel) on the road surface).

[0017] Furthermore, the display surface may be formed such that the left sides 8c, 9c and the right sides 8d, 9d form a curve that runs along the up-down direction on the side closer to the viewer and runs along the front-rear direction as the distance from the viewer increases. For a display surface formed other than a surface perpendicular to the road surface, the display distance between the driver 4 and the virtual images V1, V2 varies depending on the display position on the display surface, making it possible to display an image expressing a sense of depth. For example, when the display surface is a surface inclined such that the upper sides 8b, 9b are positioned forward of the lower sides 8a, 9a, the driver 4 can perceive depth in the display surface.

[0018] Note that information relating to the line of sight 4a of the driver 4 for calculating the display distance of an image or the like may be preset and stored in the main control unit 40 or the like, or may be detected by a sensor when the own vehicle 1 or the display system 10 includes a sensor that detects the line of sight of the driver 4.

[0019] The upper HUD 20 includes a display 21, a concave mirror 22, a housing 24, and an upper HUD display control unit 25.

[0020] The display unit 21 emits display light L1 toward the concave mirror 22. The display unit 21 is, for example, a TFT (Thin Film Transistor) type liquid crystal display or an organic EL (Electro Luminescence) display. The display unit 21 may also have a projector and a screen that constitutes the display surface.

[0021] The concave mirror 22 reflects the display light L1 emitted from the display unit 21 toward the windshield 3. The concave mirror 22 also functions as a magnifying mirror, magnifying the image displayed on the display unit 21 and reflecting it toward the windshield 3. In other words, the driver 4 sees a magnified image of the image displayed on the display unit 21.

[0022] The housing 24 supports a control board on which a concave mirror 22, a display unit 21, and an upper HUD display control unit 25 are mounted.

[0023] The upper HUD display control unit 25 has a CPU (Central Processing Unit), ROM (Read Only Memory), RAM (Random Access Memory), etc., and performs predetermined calculation processing according to the program written in the ROM. Specifically, the upper HUD display control unit 25 controls the display unit 21 to display the required image based on instructions from the main control unit 40.

[0024] The lower HUD 30 includes a display unit 31, a housing 34, and a lower HUD display control unit 35.

[0025] The display unit 31 emits display light L2 directly onto the light-shielding portion 3a on top of the housing 34. The display unit 31 has a configuration similar to, for example, the upper HUD 20. As a result, the driver 4 can see the image displayed on the display unit 31 and reflected by the light-shielding portion 3a.

[0026] The housing 34 supports a control board on which the display unit 31 and the lower HUD display control unit 35 are mounted.

[0027] The lower HUD display control unit 35 has a CPU, ROM, RAM, etc., and performs predetermined calculation processing according to the program written in the ROM. Specifically, the lower HUD display control unit 35 controls the display unit 31 to display the required image based on instructions from the main control unit 40.

[0028] The main control unit 40 controls the upper HUD 20 and lower HUD 30, in particular, based on information acquired from various parts of the vehicle 1, which will be described later. The main control unit 40 has a CPU, ROM, RAM, etc., and executes predetermined calculation processing and display control processing, which will be described later, according to the program written in the ROM.

[0029] In addition to the display system 10, the vehicle 1 includes a surrounding information acquisition unit 51, an external information acquisition unit 52, a car navigation system 53, a vehicle ECU (Electronic Control Unit) 54, and a reception unit 55. Each unit and the main control unit 40 are connected, for example, via a CAN (Controller Area Network) bus 50.

[0030] The surrounding information acquisition unit 51 acquires information about the surroundings (external) of the vehicle 1. The surrounding information acquisition unit 51 communicates with the vehicle 1 and the wireless network, with the vehicle 1 and other vehicles, with the vehicle 1 and pedestrians, and with the vehicle 1 and roadside infrastructure. For example, the surrounding information acquisition unit 51 is equipped with a communication module that can directly access a WAN (Wide Area Network), a communication module for communicating with external devices (such as mobile routers) that can access the WAN, and public wireless LAN (Local Area Network) access points, and performs internet communication.

[0031] Furthermore, the surrounding information acquisition unit 51 is equipped with a wireless communication module compliant with a predetermined wireless communication standard. In addition, the surrounding information acquisition unit 51 has a communication device that communicates wirelessly with roadside infrastructure, and acquires object information and traffic information, for example, from a base station of a Driving Safety Support Systems (DSSS) via roadside wireless devices deployed as infrastructure.

[0032] The external information acquisition unit 52 detects the contents and locations of objects such as people, structures, and other vehicles that exist in the external environment surrounding the vehicle 1, above, below, in front of, behind, and to the left and right of the vehicle 1. The external information acquisition unit 52 includes, for example, a stereo camera that captures the scenery around the vehicle 1, a distance measuring sensor such as LIDAR (Laser Imaging Detection And Ranging) that measures the distance from the vehicle 1 to an object, sonar, ultrasonic sensors, and millimeter-wave radar that detect objects located around the vehicle 1.

[0033] The car navigation system 53 has a GPS controller that calculates the position of the vehicle 1 based on GPS (Global Positioning System) signals received from artificial satellites or the like. The car navigation system 53 has a storage unit that stores map data, and based on the position information from the GPS controller, it reads map data near the current position from the storage unit and determines a guidance route to the destination set by the occupants. The car navigation system 53 outputs information regarding the current position of the vehicle 1 and the determined guidance route to the main control unit 40.

[0034] Furthermore, the car navigation system 53 outputs information to the main control unit 40, such as the name and type of facilities ahead of the vehicle 1, and the distance between the facilities and the vehicle 1, by referring to map data. The map data associates various types of information with location data, including road shape information (lanes, road width, number of lanes, intersections, curves, forks, etc.), traffic information such as road signs like speed limits, road closures, alternating one-way traffic, and speed restrictions, and information about each lane when there are multiple lanes. The car navigation system 53 outputs all of this information to the main control unit 40.

[0035] Furthermore, the car navigation system 53 is not limited to one installed in the vehicle 1, but may also be implemented by a portable terminal (for example, a smartphone or tablet PC (Personal Computer)) with car navigation functionality that communicates with the main control unit 40 by wire or wireless connection.

[0036] The vehicle ECU 54 acquires vehicle information necessary for the operation of the vehicle 1, such as vehicle speed and engine speed, from various sensors installed on the vehicle 1, and controls the operation of the vehicle 1. The vehicle ECU 54 outputs necessary vehicle information, such as vehicle speed and warning information for the vehicle 1 itself (e.g., low fuel, abnormal engine oil pressure), to the main control unit 40.

[0037] The reception unit 55 consists of switches located on the instrument panel 2 and steering wheel 5, which are operated by the driver 4. The reception unit 55 receives the settings of the vehicle 1 from the driver 4. The driver 4 sets the settings for the adaptive cruise control (ACC) function of the vehicle 1 at the reception unit 55.

[0038] The ACC function is a driver assistance function that allows the vehicle 1 to automatically maintain a constant speed or follow the vehicle ahead (maintain a constant distance from the vehicle in front) even when the driver 4 is not driving the vehicle 1, thanks to the surrounding information acquisition unit 51, external information acquisition unit 52, car navigation system 53, vehicle ECU 54, main control unit 40, etc. Settings for the ACC function include the execution setting when using the ACC function, the vehicle speed setting for constant speed driving, and the distance setting for following the vehicle ahead.

[0039] Next, the display control of the ACC function by the display system 10 will be explained in detail.

[0040] As shown in Figures 1 and 2, the display system 10 in this embodiment has an upper HUD 20 that displays an image at a position where the amount of eye movement from the driver's line of sight 4a is small (close position) and is easily recognized by the driver 4, and a lower HUD 30 that displays an image at a position where the amount of eye movement from the line of sight 4a is larger than that of the upper HUD 20 (far position) and is relatively less easily recognized by the driver 4. The display system 10 can coordinate these upper HUD 20 and lower HUD 30 to display the ACC function setting screen on the easily recognizable upper HUD 20 and appropriately convey information to the driver 4.

[0041] As shown in Figure 3, the lower HUD display area 9 displays the following: a vehicle image 91 showing the vehicle 1, a vehicle speed image 92 related to vehicle speed information acquired from the vehicle ECU 54, an image related to information about surrounding vehicles of the vehicle 1 acquired from the external information acquisition unit 52, etc., and a lane marking image 94 showing information about the lane markings of the driving lane in which the vehicle 1 is traveling. The image related to information about surrounding vehicles includes, for example, a rear vehicle image 95 related to information about a vehicle traveling behind the vehicle 1, and a front vehicle image 96 related to information about a vehicle traveling in front, and shows the relative positional relationship with the vehicle image 91. The rear vehicle image 95 and the front vehicle image 96 are displayed when there are rear and front vehicles.

[0042] Furthermore, the lower HUD display area 9 displays a sign image 97 related to information about road signs currently applied to the vehicle 1 that is in motion, at the required timing. In this disclosure, the sign image 97 is a speed limit sign indicating a speed limit of 100 km / h. The content of the road sign may be a regulatory sign indicating prohibitions such as no overtaking, or information about other road signs. Multiple sign images 97 may be displayed in the lower HUD display area 9, and in this case, it is preferable that the sign image 97 related to the speed limit, which is of high importance, is displayed in the central part of the lower HUD display area 9, in an area that is easily recognized by the driver 4.

[0043] Furthermore, when the ACC function is used by the driver 4, the lower HUD display area 9 displays the vehicle speed setting image 98 related to constant speed driving and the following distance setting image 99 related to following the vehicle ahead, as mentioned above. The following distance setting image 99 consists of multiple rectangular designs (segments) and is arranged side by side between the image of the vehicle ahead 96 and the image of the own vehicle 91, and the number of these designs indicates the distance between the own vehicle 1 and the vehicle ahead.

[0044] Here, the image of the vehicle ahead 96, the image of the distance setting 99, the image of the own vehicle 91, and the images of the adjacent lane markings 94 are collectively referred to as the ACC distance setting image. Note that the ACC distance setting image and the vehicle speed setting image 98 are displayed when the driver 4 operates the reception unit 55 to set the ACC function to be activated, and if the activation setting is made, it is an emergency.

[0045] Here, the ACC distance setting image, as shown in Figure 4, includes a driver's-eye view image (first image) E1, a bird's-eye view image (second image) E2, and an overhead view image (third image) E3. The driver's-eye view image E1 is an image of what the driver 4 sees from their own vehicle 1 to the vehicle 100 ahead (similar to the line of sight 4a in Figure 1) (viewed from an angle of approximately 0 to 10 degrees relative to the road surface). The driver's-eye view image E1 is the ACC distance setting image shown in Figure 3.

[0046] The bird's-eye view image E2 is an image of the vehicle 1 and the vehicle 100 ahead as seen from a virtual second line of sight located above the first line of sight (looking down from approximately 60 to 90 degrees (directly above)). The bird's-eye view image E2 is the ACC distance setting image shown in Figure 7. The overhead view image E3 is an image of the vehicle 1 and the vehicle 100 ahead as seen from a virtual third line of sight located between the first and second lines of sight (looking down from an angle of approximately 10 to 60 degrees). The overhead view image E3 is the ACC distance setting image shown in Figures 5 and 6.

[0047] When the driver 4 operates the reception unit 55 and detects a change in the following distance for the ACC function, the main control unit 40 moves the ACC distance setting image and the vehicle speed setting image 98 from the lower HUD display area 9 to the upper HUD display area 8, as shown in Figures 5 to 7.

[0048] In this case, the main control unit 40 may, for example, make the driver 4 more aware of the movement of the ACC distance setting image and the vehicle speed setting image 98 by flashing them, or it may control the lower HUD display control unit 35 to dim the brightness of displays other than the ACC distance setting image and the vehicle speed setting image 98.

[0049] First, as shown in Figure 5, the lower HUD display control unit 35 moves the ACC distance setting image and the vehicle speed setting image 98 linearly in the vertical direction toward the upper HUD display area 8. At this time, the ACC distance setting image moves while gradually switching from the driver's-eye view image E1 to the overhead view image E3. The ACC distance setting image and the vehicle speed setting image 98 are cut off from the upper edge 9b of the lower HUD display area 9.

[0050] Next, as shown in Figure 6, the upper HUD display control unit 25 gradually displays the ACC distance setting image and the vehicle speed setting image 98 from the lower edge 8a of the upper HUD display area 8. At this time, the ACC distance setting image is displayed so as to span both the lower HUD display area 9 and the upper HUD display area 8, thereby improving the sense of coordination between the displays of the upper HUD 20 and the lower HUD 30, and allowing the driver 4 to be more aware of the movement of the ACC distance setting image.

[0051] Finally, as shown in Figure 7, as the ACC distance setting image is completely erased from the lower HUD display area 9, the upper HUD display control unit 25 switches the ACC distance setting image in the upper HUD display area 8 from the overhead view image E3 to the bird's-eye view image E2. This improves the driver 4's visibility of the following distance setting. Furthermore, by changing the ACC distance setting image from the driver's-eye view image E1 to the bird's-eye view image E2 via the overhead view image E3, the driver 4 can improve their recognition of the change in the image's line of sight.

[0052] Subsequently, when the driver 4 finishes operating the reception unit 55 and a predetermined time has elapsed, the main control unit 40 moves the ACC distance setting image and the vehicle speed setting image 98 from the upper HUD display area 8 to the lower HUD display area 9 in the order of Figures 7, 6, 5, and 3. At this time, the ACC distance setting image is also changed from the bird's-eye view image E2 via the overhead view image E3 to the driver's-eye view image E1.

[0053] Furthermore, in order to ensure that the ACC distance setting image and vehicle speed setting image 98 appear the same size to the driver 4 in both the upper HUD display area 8 and the lower HUD display area 9, the size of the ACC distance setting image and vehicle speed setting image 98 actually displayed in the lower HUD display area 9 is made larger than the size of the ACC distance setting image and vehicle speed setting image 98 actually displayed in the upper HUD display area 8.

[0054] (Second Embodiment) A second embodiment of the display system relating to this disclosure will be described with reference to Figure 8. Parts identical or equivalent to those in the first embodiment described above will be denoted by the same reference numerals.

[0055] In the first embodiment, the main control unit 40 changed the ACC distance setting image from the driver's-eye view image E1 to the overhead view image E3 in the lower HUD display area 9 and moved it to the upper HUD display area 8. However, in this disclosure, when a change in the following distance for following the vehicle ahead is detected, the ACC distance setting image is changed from the driver's-eye view image E1 to the bird's-eye view image E2 via the overhead view image E3 in the lower HUD display area 9, and then the bird's-eye view image E2 is moved to the upper HUD display area 8.

[0056] Even with this configuration, driver 4 can improve the visibility of setting the distance between vehicles.

[0057] (Third embodiment) A third embodiment of the display system relating to this disclosure will be described with reference to Figure 9. Parts identical or equivalent to those in the first embodiment described above will be denoted by the same reference numerals.

[0058] In this disclosure, when a change in the following distance during adaptive cruise control is detected, the ACC distance setting image is changed from the driver's-eye view image E1 to the upper HUD display area 8, and then in the upper HUD display area 8, the driver's-eye view image E1 is changed to the bird's-eye view image E2 via the overhead view image E3.

[0059] Even with this configuration, driver 4 can improve the visibility of setting the distance between vehicles.

[0060] While several embodiments of the present invention have been described, these embodiments are presented as examples only and are not intended to limit the scope of the invention. These novel embodiments can be carried out in a variety of other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their variations are included in the scope and spirit of the invention, as well as in the claims and their equivalents.

[0061] For example, although we have described an example where both the first display (upper HUD20) and the second display (lower HUD30) are HUDs, one or both may also display a real image on a display panel such as a TFT type liquid crystal display or an organic EL display.

[0062] Furthermore, although an example was described in which the projection members of the upper HUD20 and lower HUD30 are windshields 3, a combiner may be used instead of, or in conjunction with, these projection members.

[0063] Furthermore, when changing from the driver's-eye view image E1 to the bird's-eye view image E2, the images may be sequentially transitioned with gradually increasing viewing angles. The change in viewing angle may be linear or nonlinear. For example, if the viewing angle is changed nonlinearly, increasing the degree of change initially and decreasing it as the view approaches the bird's-eye view image E2 can provide a novel visual experience for the driver 4.

[0064] Furthermore, while the ACC distance setting images included a forward vehicle image 96, a following distance setting image 99, a current vehicle image 91, and adjacent lane marking images 94, the system is not limited to these and can be set arbitrarily. For example, the current vehicle image 91 and lane marking images 94 do not need to be included.

[0065] Furthermore, after detecting a change in the following distance for the vehicle ahead, the ACC distance setting image and vehicle speed setting image 98 were moved from the lower HUD display area 9 to the upper HUD display area 8, but it is also acceptable to move only the ACC distance setting image.

[0066] Furthermore, while the bird's-eye view image E2 and the overhead view image E3 differ in their vertical line of sight relative to the driver's-eye view image E1, they may also differ in their horizontal line of sight relative to the driver's-eye view image E1. For example, when the driver 4 operates the reception unit 55 and detects a change in the following distance for the vehicle ahead, the main control unit 40 may switch the ACC distance setting image to an image showing the vehicle itself 1 and the vehicle ahead 100 from a side view. [Explanation of Symbols]

[0067] 1. Vehicle (Own vehicle) 2. Instrument Panel 3 Windshield 3a Light shielding part 4. Driver (User) 4a line of sight 5. Steering wheel 8 Upper HUD display area (1st display section) 9 Lower HUD display area (second display) 8a, 9a bottom edge 8b, 9b upper edge 8c, 9c Left side 8d, 9d Right side 10 Display Systems 20 Upper HUD (1st display) 21, 31 Display 22 concave mirror 24, 34 cabinets 25 Upper HUD display control unit 30 Lower HUD (2nd display) 35 Lower HUD display control unit 40 Main Control Unit (Control Unit) 50 CAN bus 51 Peripheral Information Acquisition Unit 52 External Information Acquisition Unit 53 Car Navigation System 54 Vehicle ECU 55 Reception Department 91 Image of my vehicle 92 Vehicle speed image 94 Pavement Line Images 95 Rear vehicle image 96 Image of the vehicle ahead 97 Sign Images (Warning Images) 98 Image of approaching vehicle from behind 99 Following distance setting image 100 Front vehicle E1 Driver's perspective image (first image) E2 Bird's-eye view image (second image) E3 Overhead view (third image) L1, L2 display light V1 Virtual Image (First Virtual Image) V2 Virtual Image (Second Virtual Image) d1, d2 distance θ1, θ2 angle

Claims

1. A display unit that displays a setting image, which is an image that allows the user to visually confirm the settings of the vehicle, The system includes a control unit that receives the setting value from the user and controls the state of the setting image displayed on the display unit, The aforementioned setting image comprises a first image showing the view from the user's first line of sight, and a second image showing the view from a second line of sight at a position different from the position of the first line of sight. When the control unit changes the setting value, it switches the setting image from the first image to the second image. The second line of sight is located above the first line of sight. The first line of sight is the line of sight of the user looking forward from their own vehicle, The display unit includes a first display unit that is visible at a first viewing distance relative to the user's first line of sight, and a second display unit that is visible at a second viewing distance greater than the first viewing distance relative to the user's first line of sight. The control unit is characterized by moving the set image from the second display unit to the first display unit.

2. The display system according to claim 1, characterized in that when the setting image is moved from the second display unit to the first display unit, it is displayed so as to span both the second display unit and the first display unit.

3. The aforementioned setting image includes a third image showing the view from a third line of sight located between the first line of sight and the second line of sight, The display system according to claim 1, characterized in that the control unit switches the setting image from the first image to the second image via the third image when changing the setting value.

4. The display system according to claim 3, characterized in that when the setting image is moved from the second display unit to the first display unit, it moves while gradually switching from the first image to the third image.

5. The display system according to claim 1, characterized in that the first image is displayed on the second display unit, and the second image is displayed on the first display unit.

6. The display system according to claim 3, characterized in that the control unit moves the third image from the second display unit to the first display unit.

7. The display system according to claim 1, characterized in that the first display unit is a first virtual image that is reflected by the transparent portion of the windshield of the vehicle and is visible to the user, and the second display unit is a second virtual image that is reflected by the light-shielding portion of the windshield and is visible to the user.

Images