Display control device, head-up display device, display device control method, program, and vehicle display system

Abstract

To facilitate recognition of a route guidance display position and reduce discomfort given to a driver during such display.SOLUTION: A display control device 300 that controls a display device (for example, a HUD device 100) which performs route guidance display for a vehicle includes a control unit 200 that performs control to cause the display device to display a route guidance display indicating a traveling direction of the vehicle at a route change point within a first distance range being a distance range from a current position of the vehicle to the route change point, and also performs control to cause the display device to display a non-route guidance display indicating entry prohibition to a non-route guidance point in front of the route change point and being a road not included in the route guidance, within a second distance range shorter than the first distance range and being the distance range to the non-route guidance point.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a display control device that controls a display device that provides route guidance for a vehicle, and the like. [Background technology]

[0002] There are known navigation devices that can display a vehicle route guidance display (image) on, for example, a head-up display device, and intuitively display the direction in which the vehicle should turn right or left at an intersection, etc. In recent years, AR (Augmented Reality) navigation has also emerged, which superimposes a guidance image (virtual image) on the foreground in the vehicle's forward field of view or displays POIs (Points of Interest) for the driver to view.

[0003] For example, Patent Document 1 describes a vehicle display device that can display route guidance in a more understandable manner without interfering with the driving of the driver who is the viewer. According to the technology described in Patent Document 1, the vehicle display device can display, as a virtual image, an image indicating that entry to roads that are not included in the route guidance is prohibited at points where the vehicle needs to select its direction of travel, such as intersections or forks in the road. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2005-069800 A (paragraphs

[0133] to

[0135] , Figure 1) Summary of the Invention [Problem to be solved by the invention]

[0005] According to the technology described in the above-mentioned Patent Document 1, the driver can recognize the direction to go and also the direction not to go at points where the vehicle must select a direction of travel, such as intersections and forks, thereby enabling a more easily understandable route guidance display. However, a so-called non-route guidance display, which indicates that entry to roads not included in the route guidance is prohibited, is displayed together with the route guidance display for a relatively long time until the vehicle reaches a point where the vehicle must select a direction of travel, and this may cause annoyance to the driver. In particular, if there are multiple roads not included in the route guidance before the vehicle reaches a point where the vehicle must select a direction of travel, the display of these roads will also cause annoyance to the driver.

[0006] Therefore, the present invention aims to provide a display control device, etc., which, when displaying a non-route guidance display together with a route guidance display at a point where the vehicle's direction of travel needs to be selected, makes it easier to recognize the position of the route guidance display by, for example, displaying the non-route guidance display at a shorter distance range than the route guidance display, and also reduces the inconvenience caused to the driver who is the viewer.

[0007] Other objects of the present invention will become apparent to those skilled in the art by referring to the following exemplary aspects and best modes, as well as the accompanying drawings. [Means for solving the problem]

[0008] In order to facilitate an understanding of the outline of the present invention, the following examples are given of embodiments according to the present invention.

[0009] A first aspect of the present invention is a display control device that controls a display device that displays route guidance for a vehicle, and includes a control unit that controls the display device to display a route guidance display indicating the vehicle's direction of travel at a route change point in a first distance band that is a distance band from the current position of the vehicle to the route change point, and controls the display device to display a non-route guidance display indicating that entry to a non-route guidance point, which is a road before the route change point and is not included in the route guidance, in a second distance band that is shorter than the first distance band and is a distance band from the current position of the vehicle to the non-route guidance point.

[0010] Here, the "route guidance display" refers to, for example, an arrow marker image (R D ) and a "non-route guidance image" refers to, for example, point N, which is a road that is not included in the route guidance, as shown in FIG. CP (See Figure 4 (A(B))) RD ) In addition, the "first distance range" refers to, for example, the distance range from the current position of the vehicle 1 to the route change point (the distance from the current position of the vehicle 1 to the non-route guidance display point N cp The "second distance range" refers to, for example, a distance range A from the current position of the vehicle 1 to a point N where route guidance is not performed, which is a road that is not included in the route guidance, as shown in FIG. 4(B). cp This refers to distance range B, which is the distance range up to

[0011] In the first mode, when providing guidance on the vehicle's travel route DR, the control unit displays a route guidance display R that indicates the vehicle's travel direction at the lane change point. D The route is displayed in the first distance band (distance band A) which is the distance band to the point just before the lane change point, and point N which is a road not included in the route guidance. RD Non-route guidance sign indicating no entry to RDTherefore, the route guidance display R displayed on the display device for the driver who is the viewer is controlled to be displayed in a second distance range (distance range B) that is shorter than the first distance range. D and the difference in length between the first distance band and the second distance band is used to display non-route guidance N. RD Since the display time of the message is shortened, the annoyance felt by the driver who is the viewer can be reduced accordingly.

[0012] In a second aspect dependent on the first aspect, the control unit may perform control to erase the non-route guidance display from the display device after the vehicle has passed the second distance zone.

[0013] In the second aspect, the control unit D Then, non-route guidance display N RD After that, when the vehicle passes the second distance band (distance band B), the non-route guidance display N RD In order to control the erasure of non-route guidance display N RD Since the display time of the message is shortened, the annoyance felt by the driver who is the viewer can be reduced accordingly.

[0014] In a third aspect dependent on the first or second aspect, when a first non-route guidance display is present at a first point just before the lane change point and a second non-route guidance display is present at a second point just before the first point, the control unit may set the first distance band from the current position of the vehicle to the first point and the second distance band from the current position of the vehicle to the second point, display the second non-route guidance display on the display device when the vehicle enters the second distance band, and subsequently erase the second non-route guidance display when the vehicle has passed the second distance band, and further perform control to display the first non-route guidance display on the display device when the vehicle enters the first distance band, and subsequently erase the first non-route guidance display when the vehicle has passed the first distance band.

[0015] In the third embodiment, for example, as shown in FIG. 7, the first point N CP1 First non-route guidance display N RD1 There is a second point N before the first point. CP2 Second non-route guidance display N RD2 When the vehicle enters the second distance zone (distance zone B'), the control unit displays the second non-route guidance display N RD2 is displayed on the display device, and then when the vehicle enters the first distance zone (distance zone B), a first non-route guidance display N RD1 Therefore, when the vehicle reaches the second point N CP2 Second non-route guidance display N when passing RD2 is erased from the display, and then the first point N RD1 First non-route guidance display N when passing RD1 is erased from the display device, and the non-route guidance display N is always displayed until the vehicle reaches a point where it is necessary to select a direction of travel. RD1 ,N RD2 is no longer displayed continuously, the annoyance felt by the driver who is the viewer can be reduced.

[0016] In a fourth aspect dependent on the third aspect, the control unit may perform control to simultaneously display the first non-route guidance display and the second non-route guidance display on the display device when at least a portion of the first distance band to the first point and the second distance band to the second point overlap.

[0017] In a fourth aspect, the control unit calculates a distance from the current position of the vehicle to a first point N CP1 The first distance band (distance band B) to the second point N CP2 When at least a part of the second distance band (distance band B') from RD1 and the second non-route guidance display N RD2 In order to control the display of the non-route guidance point N, which is a road that is not included in the route guidance, the driver, who is the viewer, will be informed of the non-route guidance point N, which is a road that is not included in the route guidance, before arriving at the lane change point. CP There are multiple (NCP1 ,N CP2 ) and by making the user aware in advance that they are concentrating, it is possible to raise their attention.

[0018] A fifth aspect of the present invention is a head-up display device that projects an image onto an imaging area that is virtually set in front of a vehicle, and includes an image display unit that displays an image that provides route guidance for the vehicle, obtained from outside, superimposed on a foreground in the vehicle's forward field of view, and a control unit that controls the image display unit to display a route guidance display that indicates the vehicle's direction of travel at a lane change point in a first distance band that is a distance band from the current position of the vehicle to the lane change point, and controls the image display unit to display a non-route guidance display that indicates no entry to a non-route guidance point that is a road not included in the route guidance and is located before the lane change point in a second distance band that is shorter than the first distance band and is a distance band from the current position of the vehicle to the non-route guidance point.

[0019] In the fifth aspect, for example, as shown in FIGS. 4(A) and 4(B), when providing guidance on the vehicle's travel route DR, the control unit displays a route guidance display R that indicates the vehicle's travel direction at a lane change point. D (For example, an arrow marker image (see FIG. 5)) is displayed in the first distance range (the distance range from the current vehicle position to the non-route guidance display point N cp The distance range A is included in the specified distance to the destination point N, which is not included in the route guidance target. CP Non-route guidance sign indicating no entry to RD (For example, an intrusion prohibition marker image (see FIG. 5)) is displayed on the image display unit in a second distance range (distance range B) that is shorter than the first distance range. Therefore, the route guidance display R displayed on the image display unit for the driver who is the viewer is D Point C where P and the difference in length between the first distance band (distance band A) and the second distance band (distance band B) is displayed as non-route guidance display N. RDSince the display time of the route guidance display R is shortened, it is possible to provide a head-up display device that can reduce the annoyance felt by the driver who is the viewer. D , Non-route guidance display N RD Both are superimposed on the foreground in the vehicle's forward field of view, and the route guidance display R D and non-route guidance display N RD For example, the image can be made to appear as if it is floating parallel to or vertically above the road surface, giving it an AR feel, thereby enhancing its visibility. In this case, the image can be made to appear as if it is floating parallel to or vertically above the road surface, thereby enhancing its visibility. RD This is also effective in alerting drivers to the situation.

[0020] A sixth aspect according to the present invention is a control method for a display device that displays route guidance for a vehicle, comprising: a first step in which a control unit that controls the display device controls the display device to display a route guidance display indicating the direction of travel of the vehicle at a lane change point in a first distance band that is a distance band from the current position of the vehicle to the lane change point; and a second step in which a control unit that controls the display device controls the display device to display a non-route guidance display indicating that entry to a non-route guidance point that is a road before the lane change point and is not included in the route guidance is prohibited in a second distance band that is a distance band from the current position of the vehicle to the non-route guidance point, which is shorter than the first distance band.

[0021] In a sixth aspect, the control unit that controls the display device, for example, as shown in FIGS. 4(A) and 4(B), when providing guidance on the vehicle's travel route DR, displays a route guidance display R that indicates the traveling direction of the vehicle at a lane change point. D (For example, an arrow marker image (see FIG. 5)) is displayed in the first distance range (the distance range from the current vehicle position to the non-route guidance display point N cp The distance band A) is included in a certain distance to the destination, and the non-route guidance point N is displayed on the display device. CP Non-route guidance sign indicating no entry to RD(For example, an intrusion prohibition marker image (see FIG. 5)) is displayed on the display device in a second distance range (distance range B) that is shorter than the first distance range (distance range A). Therefore, the route guidance display R displayed on the display device for the driver who is the viewer is D and the difference in length between the first distance band (distance band A) and the second distance band (distance band B) is displayed as non-route guidance display N. RD Since the display time of the message is shortened, the annoyance felt by the driver who is the viewer can be reduced accordingly.

[0022] A seventh aspect according to the present invention is a program for a display control device that controls a display device that displays route guidance for a vehicle, and causes a processor of the display control device to execute a first process of controlling the display device to display a route guidance display indicating the vehicle's direction of travel at a lane change point in a first distance band that is a distance band from the current position of the vehicle to the lane change point, and a second process of controlling the display device to display a non-route guidance display indicating that entry to a non-route guidance point that is located before the lane change point and is not subject to route guidance is prohibited in a second distance band that is a distance band from the current position of the vehicle to the non-route guidance point that is shorter than the first distance band.

[0023] In the seventh aspect, a processor included in the display control device sequentially reads and executes a program stored in an internal or external memory, thereby displaying a route guidance display R indicating the direction of travel of the vehicle at a lane change point, for example, as shown in FIGS. 4(A) and 4(B), when providing guidance on a vehicle's travel route DR. D (For example, an arrow marker image (see FIG. 5)) is displayed in the first distance range (the distance range from the current vehicle position to the non-route guidance display point N cp The distance band A) is included in a certain distance to the destination, and the non-route guidance point N is displayed on the display device. CP Non-route guidance sign indicating no entry to RDFor example, the route guidance display R (see FIG. 5) is displayed on the display device in a second distance range (distance range B) that is shorter than the first distance range. D and the difference in length between the first distance band (distance band A) and the second distance band (distance band B) is displayed as non-route guidance display N. RD This shortens the display time, thereby reducing the annoyance felt by the driver.

[0024] An eighth aspect of the present invention is a display system for a vehicle having at least a navigation device that provides route guidance for the vehicle, a head-up display device that projects a route guidance image onto a virtually set imaging area in front of the vehicle, and a display control device that controls the display of the head-up display device, wherein the display control device controls the head-up display device to display the route guidance display indicating the vehicle's direction of travel at a lane change point obtained from the navigation device in a first distance band that is a distance band from the current position of the vehicle to the lane change point, and controls the head-up display device to display a non-route guidance display indicating no entry to a non-route guidance point that is a road not included in the route guidance and is located before the lane change point in a second distance band that is shorter than the first distance band and is a distance band from the current position of the vehicle to the non-route guidance point.

[0025] In the eighth aspect, for example, as shown in FIGS. 4(A) and 4(B), when providing guidance on a vehicle's travel route DR, the display control device displays a route guidance display R indicating the vehicle's travel direction at a course change point acquired from a navigation device. D (For example, an arrow marker image (see FIG. 5)) is displayed in the first distance range (the distance range from the current vehicle position to the non-route guidance display point N cp The distance band A) is included in a certain distance to the non-route guidance point N, which is a road not included in the route guidance. CP Non-route guidance sign indicating no entry toRD For example, the route guidance display R (see FIG. 5) is displayed on the head-up display device in a second distance range (distance range B) that is shorter than the first distance range (distance range B). D and the difference in length between the first distance band (distance band A) and the second distance band (distance band B) is displayed as non-route guidance display N. RD Since the display time is shortened, it is possible to provide a vehicle display system that reduces the annoyance felt by the driver.

[0026] Those skilled in the art will readily appreciate that the exemplified embodiments according to the present invention can be further modified without departing from the spirit of the present invention. [Brief explanation of the drawings]

[0027] [Figure 1] FIG. 1 shows an example of application of a head-up display device used as a display device in a display control device according to an embodiment of the present invention to a vehicle, and is a diagram cited to explain the relationship between the driver's eye position and an imaging plane that is virtually set in front of the vehicle. [Figure 2] FIG. 2 is a block diagram showing a configuration of a vehicle display system to which a display control device according to an embodiment of the present invention is applied. [Figure 3] FIG. 3 is a flowchart showing the operation of Example 1 of the display control device according to the embodiment of the present invention. [Figure 4] Figure 4(A) shows the relationship between the points of the route guidance display displayed on the display device of Example 1 and the points that the vehicle passes through, and Figure 4(B) shows the relationship between the non-route guidance display displayed on the display device and the points that the vehicle passes through. [Figure 5] FIG. 5 is a diagram illustrating an example of a route guidance display image and a non-route guidance display image displayed on the display device in the first embodiment. [Figure 6] FIG. 6 is a flowchart showing the operation of Example 2 of the display control device according to the embodiment of the present invention. [Figure 7] FIG. 7 is a diagram illustrating the relationship between the first non-route guidance display and the second non-route guidance display and each point that the vehicle passes through in the second embodiment. [Figure 8] FIG. 8 is a diagram illustrating an example of a route guidance display image, a first non-route guidance display image, and a second route guidance display image displayed on a display device in the second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0028] The best mode described below is used to facilitate understanding of the present invention, and therefore, those skilled in the art should be aware that the present invention is not unduly limited by the mode described below (hereinafter referred to as the present mode).

[0029] [Configuration of the embodiment] FIG. 1 shows an example of application of a head-up display device (hereinafter simply referred to as HUD device 100) used as a display device in a display control device 300 of this embodiment to a vehicle 1, and is a diagram cited to explain the relationship between the eye position of a driver 4 and a display area VA, which is an imaging plane virtually set in front of the vehicle 1.

[0030] In the following description, when the driver 4, who is the viewer of the HUD device 100 seated in the driver's seat of the vehicle 1, faces forward of the vehicle 1, the left-right direction is the X-axis (the left direction is the positive X-axis direction), the up-down direction is the Y-axis (the up direction is the positive Y-axis direction), and the front-to-back direction is the Z-axis (the forward direction is the positive Z-axis direction).

[0031] Referring to Fig. 1, the HUD device 100 is provided in the dashboard 5 of the vehicle 1 and includes a HUD control unit 110 and an image display unit 120 (framed with a dashed line). The HUD device 100 emits display light L toward the front windshield 2 (an example of a projection target), and causes an image (virtual image) to be viewed in a display area VA, which is an imaging plane that is virtually set forward of the front windshield 2 (in the positive direction of the Z axis). This allows the driver 4, who is the viewer, to view the image (virtual image) superimposed on a foreground FV in the field of view ahead of the vehicle 1, which is real space viewed through the front windshield 2.

[0032] The display area VA is a flat, curved, or partially curved area on which an image generated inside the HUD device 100 is focused as a virtual image, and is also called an imaging surface. The display area VA itself has low visibility to the extent that it is not actually visible to the driver 4 or is difficult to view. The display area VA has a vertical angle of view, which is defined as the angle (tilt angle θt) formed between the horizontal direction (XZ plane) with the left-right direction (X-axis direction) of the vehicle 1 as its axis, a line segment connecting the center of the eye box (the eye position of the driver 4) to the upper end of the display area VA, and a line segment connecting the center of the eye box (the eye position of the driver 4) to the lower end of the display area VA, and an angle (vertical orientation θv) formed between the bisector of this vertical angle of view and the horizontal direction (XZ plane).

[0033] The image display unit 120 has a display surface for displaying an image, and includes, for example, a liquid crystal display 121 and a relay optical system 122. The liquid crystal display 121 may be a transmissive display that transmits light from a backlight (not shown), or a projection display that projects an image (virtual image) onto a screen. In these cases, the display surface is the display surface of the transmissive display and the screen of the projection display. The liquid crystal display 121 may be fitted with an actuator (not shown) such as a motor controlled by the HUD control unit 110, and may be rotatable.

[0034] The relay optical system 122 is arranged on the optical path of light (display light L) of an image (virtual image) from the liquid crystal display 121 between the liquid crystal display 121 and the front windshield 2, and is composed of one or more optical elements that project the display light L of the image (virtual image) from the liquid crystal display 121 onto the front windshield 2 outside the image display unit 120. The relay optical system 122 includes at least one concave mirror, and may additionally include, for example, one or more refractive optical elements such as lenses, diffractive optical elements such as holograms, reflective optical elements, or a combination of these.

[0035] The relay optical system 122 may be rotatable and may be provided with an actuator (not shown) such as a motor controlled by the HUD control unit 110. Specifically, while the vehicular display system 1000 is stopped, the actuator changes the position and angle of the relay optical system 122 so that sunlight from outside is not directed toward the liquid crystal display 121 via the relay optical system 122, and while the vehicular display system 1000 (see FIG. 2 described later) is running, the actuator can change the position and angle of the relay optical system 122 so that display light of an image from the liquid crystal display 121 is projected onto a predetermined position on the front windshield 2.

[0036] The image display unit 120 can change the angle (tilt angle θt) between the display area VA and the lane in which the vehicle 1 is traveling by driving the actuator described above.

[0037] Fig. 2 is a block diagram showing the configuration of a vehicular display system 1000 including the above-described HUD device 100. As shown in Fig. 2, the vehicular display system 1000 includes, in addition to the HUD device 100, a display control device 300 of this embodiment and a navigation device 400, which are connected to each other via an I / O interface 500 so as to be able to communicate with each other bidirectionally. The I / O interface 500 is further connected to a behavior sensor 401, a camera 402, a LiDAR (Light Detection And Ranging) 403, etc.

[0038] The display control device 300 of this embodiment controls a display device that displays route guidance for the vehicle 1 (a driving route DR (see FIGS. 4A and 4B described later)). The display control device 300 includes a control unit 200 and, for example, an HUD device 100 used as a display device. The control unit 200 not only controls the interface with the navigation device 400 connected to the I / O interface 500 or the various sensors 401 to 403, but also controls the HUD device 100 to display a "route guidance display" that indicates the traveling direction of the vehicle 1 at a lane change point in a "first distance band" that is a distance band from the current position of the vehicle 1 to the lane change point, and can also control the display of a "non-route guidance display" that indicates no entry into a non-route guidance point that is located before the lane change point and is a road that is not subject to route guidance, in a "second distance band" that is a distance band from the current position of the vehicle 1 to the non-route guidance point that is shorter than the first distance band.

[0039] Here, the "route guidance display" refers to, for example, a route guidance display R that indicates the traveling direction of the vehicle 1 at a route change point such as an intersection or a branch road, as shown in Figs. 4(A) and 4(B). D (For example, an arrow marker image (see Figure 5)) and "non-route guidance display" refers to point N, which is a road that is not included in the route guidance. CP Non-route guidance display N that refuses entry to RD (For example, the no-entry marker image (see FIG. 5)). Also, the "first distance range" refers to, for example, the distance range from the current position of the vehicle 1 to the lane change point (the distance from the current position of the vehicle 1 to the non-route guidance display point N cp The "second distance band" refers to, for example, the distance band A that is included in the certain distance from the current position of the vehicle 1 to the non-route guidance display point N, which is a road that is not included in the route guidance, as shown in FIG. 4(B). cp This refers to distance range B, which is the distance range up to. Details of both will be explained later.

[0040] Furthermore, the control unit 200 may display a non-route guidance display N after the vehicle 1 has passed a second distance range (distance range B) that is shorter than the first distance range (distance range A). RDcan be controlled to erase the image from the HUD device 100 (image display unit 120).

[0041] Also, for example, as shown in FIG. 7, at a first point N CP1 First non-route guidance display N RD1 and the first point N CP1 The second point N closer CP2 Second non-route guidance display N RD2 If there is a problem, the control unit 200 calculates the distance from the current position of the vehicle 1 to the first point N CP1 The first distance band (distance band B) from the current position of vehicle 1 to the second point N CP2 and a second distance band (distance band B') from the vehicle 1 to the destination, and when the vehicle 1 enters the second distance band (distance band B'), a second non-route guidance display N is displayed. RD2 is displayed on the HUD device 100 (image display unit 120), and then when the vehicle 1 passes through the second distance zone (distance zone B'), a second non-route guidance display N RD2 Furthermore, when the vehicle 1 enters the first distance range (distance range B), the first non-route guidance display N RD1 is displayed on the HUD device 100 (image display unit 120), and then when the vehicle 1 passes the first distance zone (distance zone B), a first non-route guidance display N RD1 It is possible to control the erasure of the

[0042] At this time, the current position of the vehicle 1 is CP1 The first distance band (distance band B) from the current position of vehicle 1 to the second point N CP2 When at least a part of the second distance band (distance band B') from RD1 and the second non-route guidance display N RD2 and the like can be controlled to be displayed simultaneously on the HUD device 100 (image display unit 120).

[0043] In order to perform the above-mentioned control, the control unit 200 may have, for example, a built-in memory (ROM / RAM) or an external processor and a route guidance display R generated by the processor. D(Arrow marker image (see Figure 5)) and non-route guidance display N RD The HUD device 100 includes a graphics controller that draws a no-entry marker image (see FIG. 5) in a video RAM (VRAM) allocated to a predetermined area of ​​the RAM and displays the image on the HUD device 100 (image display unit 120) according to the display timing, and the processor executes a program recorded in the ROM to perform the above-mentioned functions. Furthermore, at least some of the above-mentioned functions can be realized by hardware such as a field programmable gate array (FPGA) or logic circuit, without using a processor.

[0044] The display control device 300 of this embodiment has been described assuming that the HUD device 100 is used as the display device. However, the display device is not limited to the HUD device 100. It may also be a center information display (CID), which consolidates navigation functions, entertainment functions such as television and radio, or various setting functions such as automatic driving and air conditioning, on a relatively large display device and can be operated like a tablet, or a head-mounted display (HMD), which displays virtual reality (VR) images using parallax between the left and right eyes and has a goggle-like display worn on the head to cover both eyes. The display device may also be one that realizes stereoscopic vision. That is, the display device may be a stereoscopic display or may include a stereoscopic display. When the display device is the HUD device 100, the liquid crystal display 121 in the HUD device 100 may be replaced with a stereoscopic display. The stereoscopic display may use, for example, a lenticular system, a parallax barrier system, a light field system, or the like (but is not limited to these).

[0045] On the other hand, the navigation device 400 uses a behavior sensor 401 (described later) or a built-in Global Positioning System (GPS) or other Global Navigation Satellite System (GNSS) or gyro sensor to obtain map data from built-in map data or via wireless communication with an external device, and performs information processing such as guidance to facilities around the vehicle 1 and route guidance. Then, based on the results of this information processing, for example, when it is detected that the vehicle 1 is approaching an intersection, a branch point, or the like where a turn should be made, a signal prompting display output based on the results of this information processing is transferred to the display control device 300 (control unit 200) via the I / O interface 500 at an appropriate timing.

[0046] The navigation device 400 has map data. The map data can be obtained and stored, for example, by communicating with an external center (not shown) via a V2X (Vehicle to X) type communication system (not shown). Here, the map data is mapping data that has been digitized to represent the driving environment of the vehicle 1. The mapping data is preferably digital data of a particularly high-precision dynamic map. Note that a dynamic map is a digital map that combines a huge amount of dynamic information that changes every moment, such as traffic regulations, construction information, accidents, congestion, pedestrians, and traffic lights, with static information such as high-precision three-dimensional position information (road surface information, lane information, three-dimensional structures).

[0047] The I / O interface 500 communicates (also referred to as CAN communication) with the display control device 300 and other components (reference numerals 400 to 403) via an ECU (not shown) provided in the vehicle 1 in accordance with the CAN (Controller Area Network) standard, for example. The I / O interface 500 is not limited to CAN, and may be changed to a wired or wireless communication method.

[0048] [Operation of the embodiment] In the following description of the operation of the display control device 300 of this embodiment, a non-route guidance point N, which is a road that is not included in the route guidance and is located before a course change point such as an intersection or a branch road, will be used. CP Non-route guidance sign indicating no entry to RD The case where there is only one is taken as Example 1, and non-route guidance display N RD If there are two or more (e.g., N RD1 ,N RD2 ), or there are multiple distance bands (distance bands B, B') and there is overlap between them, as embodiment 2. The operation of each embodiment will be described in detail below.

[0049] Example 1 Fig. 3 is a flowchart showing the operation of Example 1 of the display control device 300 of this embodiment. Also, Fig. 4(A) shows the relationship between the points of the route guidance display displayed on the HUD device 100 (image display unit 120) used as a display device and the points that the vehicle 1 passes through in Example 1, and Fig. 4(B) is a diagram showing the relationship between the non-route guidance display displayed on the HUD 100 device (image display unit 120) and the points that the vehicle 1 passes through. Also, Fig. 5 is a diagram showing the relationship between the route guidance display R displayed on the HUD device 100 (image display unit 120). D Image of non-route guidance display N RD FIG. 10 is a diagram showing an example of an image.

[0050] Hereinafter, the operation of Example 1 of the display control device 300 of this embodiment shown in FIG. 2 will be described in detail with reference to FIGS.

[0051] Please refer to Fig. 3. In Fig. 3, first, the driver 4, who is the viewer, operates the navigation device 400 to set a destination (destination setting), and route guidance by the navigation device 400 is started. In the display control device 300 of this embodiment, when the control unit 200 learns via the I / O interface 500 that route guidance by the navigation device 400 has started (step ST101 "YES"), the control unit 200 acquires current position information of the vehicle 1 via a GPS or gyro sensor built into the navigation device 400 and constantly monitors the current position of the vehicle 1 (step ST102).

[0052] Next, the control unit 200 determines whether or not the vehicle 1 has entered the distance zone A (first distance zone) shown in Fig. 4(A) based on the monitored current position information (step ST103). Here, if it is determined that the vehicle 1 has entered the distance zone A (step ST103 "YES"), the control unit 200 displays the route guidance display R D (See FIG. 4(A)) is superimposed on the foreground FV of the vehicle 1 and displayed on the HUD device 100 (image display unit 120) (step ST104). D 5 shows an example of a specific display when the vehicle 1 is displayed superimposed on the foreground of the vehicle 1. On the other hand, if it is determined that the vehicle 1 is not within distance zone A ("NO" in step ST103), the process returns to step ST102.

[0053] The control unit 200 displays a route guidance display R on the HUD device 100 (image display unit 120). D After performing the above, it is determined whether or not the vehicle 1 has entered distance zone B (see FIG. 4B) which is set shorter than distance zone A (step ST105). If it is determined that the vehicle 1 has entered distance zone B (step ST105 "YES"), the control unit 200 displays the non-route guidance display N. RD (See FIG. 4(B)) is superimposed on the foreground FV of the vehicle 1 and displayed on the HUD device 100 (image display unit 120) (step ST106). RD5 shows an example of a specific display when the (no entry mark) is superimposed on the foreground of the vehicle 1. On the other hand, if it is determined that the vehicle 1 is not within distance zone B ("NO" in step ST105), the process returns to step ST102.

[0054] Next, the control unit 200 displays a non-route guidance display N on the HUD device 100 (image display unit 120). RD After performing the above, it is determined whether or not the vehicle 1 has passed through the distance zone B (step ST107). Here, if it is determined that the vehicle 1 has passed through the distance zone B (step ST107 "YES"), the control unit 200 displays the non-route guidance display N RD (see FIG. 4(B)) is erased from the HUD device 100 (image display unit 120) (step ST108). On the other hand, if it is determined that the vehicle 1 has not passed through distance zone B ("NO" in step ST107), the process returns to step ST102.

[0055] The control unit 200 displays non-route guidance RD After performing control to erase the route guidance display R from the HUD device 100 (image display unit 120), it is determined whether or not the vehicle 1 has passed through the distance zone A (step ST109). Here, if it is determined that the vehicle 1 has passed through the distance zone A (step ST109 "YES"), the control unit 200 D is erased from the HUD device 100 (image display unit 120) (step ST110).

[0056] In the first embodiment, the control unit 200 displays a route guidance display R that indicates the traveling direction of the vehicle 1 at a route change point such as an intersection or a branch road. D is displayed in distance zone A (first distance zone) which is the distance zone to the point just before the lane change point, and a non-route guidance display N is displayed, which indicates that entry into a non-route guidance point, which is a road not included in the route guidance, is prohibited. RD In this case, the route guidance display N displayed on the display device (HUD device 100) for the driver 4 who is the viewer is controlled to be displayed in a distance zone B (second distance zone) which is shorter than the distance zone A. RD The distance between distance zone A and distance zone B is displayed as N, which is the distance between the distance zone A and the distance zone B.RD The display time of the route guidance display R is shortened, so that the annoyance felt by the driver 4 can be reduced accordingly. D Then, non-route guidance display N RD After that, when vehicle 1 passes distance zone B, non-route guidance display N RD In order to control the erasure of non-route guidance display N RD Since the display time of the message is shortened, the annoyance felt by the driver 4 can be reduced accordingly.

[0057] Example 2 6 is a flowchart showing the operation of the display control device 300 of the second embodiment. RD1 and second non-route guidance display N RD2 and each point C that vehicle 1 passes through P ,N CP1 ,N CP2 8 is a diagram showing the relationship between the route guidance display R displayed on the HUD 100 device (image display unit 120) in the second embodiment. D and the first non-route guidance display image N RD1 and the second route guidance display N RD2 FIG.

[0058] Hereinafter, the operation of Example 2 of the display control device 300 of this embodiment shown in FIG. 2 will be described in detail with reference to FIGS.

[0059] Please refer to Fig. 6. In Fig. 6, as in the first embodiment, first, the driver 4, who is the viewer, operates the navigation device 400 to set a destination (destination setting), and route guidance by the navigation device 400 is started. In the display control device 300 of this embodiment, when the control unit 200 learns via the I / O interface 500 that route guidance by the navigation device 400 has started (step ST201 "YES"), the control unit 200 acquires current position information of the vehicle 1 via a GPS or gyro sensor built into the navigation device 400 and constantly monitors the current position of the vehicle 1 (step ST202).

[0060] Next, the control unit 200 sets a distance band B (first distance band) and a distance band B' (second distance band) in front of the vehicle 1 based on the current position information of the vehicle 1 and the map information thereof, as shown in Fig. 7 (step ST203). D Point C where P It is assumed that distance band B is located in front of (closer to) distance band B, and distance band B' is located even closer than distance band B (farther away), with some overlap between distance band B and distance band B'. Therefore, the control unit 200 determines whether or not there is an overlap between the set distance band B and distance band B' (step ST204). This overlap can be determined from the current position information of the vehicle 1 and map information.

[0061] Here, if it is determined that there is even a partial overlap between distance band B and distance band B' (step ST204 "YES"), the control unit 200 determines whether the vehicle 1 has entered distance band B' (ST205). Here, if it is determined that the vehicle 1 has entered distance band B' (step ST205 "YES"), the control unit 200 further determines whether there is a non-route guidance point N, which is a road not included in the route guidance target, in distance band B'. CP2 Here, it is determined whether or not the non-route guidance point N, which is a road not included in the route guidance target, is included in the distance band B'. CP2 If it is determined that the non-route guidance display N is included (step ST206 "YES"), the control unit 200 RD2The non-route guidance display N is displayed on the HUD device 100 (image display unit 120) in a manner superimposed on the foreground FV of the vehicle 1 (step ST207). RD2 Image of No Entry Mark N RD2 An example of this is shown in Figure 8.

[0062] On the other hand, if it is determined that the vehicle 1 has not yet entered the distance range B' (step ST205 "NO"), or if the distance range B' does not include the non-route guidance point N CP2 If it is determined that the value does not include the value ("NO" in step ST206), the process returns to step ST202.

[0063] The control unit 200 displays non-route guidance RD2 After controlling the display of the image on the HUD device 100 (image display unit 120) by superimposing it on the foreground FV of the vehicle 1, the control unit 200 determines whether the vehicle 1 has entered distance zone B, which is located further in front (farther away) than distance zone B' (step ST208). Here, if it is determined that the vehicle 1 has entered distance zone B (step ST208 "YES"), the control unit 200 further displays, in distance zone B, a non-route guidance point N, which is a road not included in the route guidance. CP1 (Step ST209). Here, it is determined whether or not the non-route guidance point N, which is a road not included in the route guidance target, is included in the distance band B. CP1 If it is determined that the non-route guidance display N is included (step ST209 "YES"), the control unit 200 RD1 The non-route guidance display N is displayed on the HUD device 100 (image display unit 120) in a manner superimposed on the foreground of the vehicle 1 (step ST210). RD1 Image of No Entry Mark N RD1 An example of this is shown in Figure 8.

[0064] On the other hand, if it is determined that the vehicle 1 has not yet entered the distance range B (step ST208 "NO"), or if the distance range B does not include the non-route guidance point N CP1If it is determined that the value does not include the value ("NO" in step ST209), the process returns to step ST202.

[0065] If it is determined in step ST204 that there is no overlap between distance zone B and distance zone B' (step ST204 "NO"), the control unit 200 displays non-route guidance display N. RD1 and N RD2 is superimposed on the foreground FV of the vehicle 1 and simultaneously displayed on the HUD device 100 (image display unit 120) (step ST121).

[0066] In the second embodiment, for example, as shown in FIG. 7, a first point N before a lane change point such as an intersection or a branch road is CP1 First non-route guidance display N RD1 There is a first point N CP1 The second point N closer CP2 Second non-route guidance display N RD2 If there is a second non-route guidance display N when the vehicle 1 enters the second distance zone (distance zone B'), the control unit 200 RD2 on the HUD device 100 (image display unit 120), and then when the vehicle 1 enters the first distance range (distance range B), the first non-route guidance display N RD1 Therefore, when the vehicle 1 reaches the second point N CP2 Second non-route guidance display N when passing RD1 is erased from the HUD device 100 (image display unit 120), and then the first point N CP1 First non-route guidance display N when passing RD1 is erased from the HUD device 100 (image display unit 120), so that the non-route guidance display N is always displayed until the vehicle 1 reaches a point where it is necessary to select the direction of travel. RD1 ,N RD2 is no longer displayed continuously, it is possible to reduce the annoyance felt by the driver 4 who is the viewer.

[0067] Furthermore, the control unit 200 CP1Distance zone B to second point N CP2 When at least a part of the first distance band B' from RD1 and the second non-route guidance display N RD2 In order to control the simultaneous display of the above, the driver 4, who is the viewer, encounters multiple non-route guidance points (N CP1, N CP2 ) and by making the user aware in advance that they are concentrating, it is possible to raise their attention.

[0068] [Variations] In the display control device 300 of the present embodiment described above, the control unit 200 displays a route guidance display R that indicates the traveling direction of the vehicle 1 at a course change point such as an intersection or a branch road, as shown in FIGS. 4(A) and 4(B). D The point C is located just before the lane change point. P The route guidance target point N is displayed in distance band A (first distance band) and is not included in the route guidance target point N. CP Non-route guidance sign indicating no entry to RD In the above description, the display control device 300 is controlled to display the information in a distance range B (second distance range) that is shorter than the distance range A. In response to this, the load on the display control device 300 can be reduced by incorporating the functions of the display control device 300 (control unit 200) into the HUD device 100 shown in FIG. 2, for example.

[0069] In this case, the HUD control unit 110 of the HUD device 100 controls the liquid crystal display 121 of the image display unit 120 and the relay optical system 122, and also displays a route guidance display R indicating the traveling direction of the vehicle 1 at the lane change point, as shown in FIGS. 4(A) and 4(B). D The first distance range is the distance range before the lane change point and up to the point (the distance range from the current position of the vehicle to the non-route guidance display point N cp The distance band A) is included in the certain distance to the destination, and the non-route guidance point N is displayed on the image display unit 120 (liquid crystal display 121). CP Non-route guidance sign indicating no entry to RDThe image display unit 120 (liquid crystal display 121) is controlled to display the no-entry marker image (see FIG. 5) in a second distance range (distance range B) that is shorter than the first distance range.

[0070] Therefore, according to the modified example, the route guidance display R displayed on the image display unit 120 for the driver 4 who is the viewer is D and the difference in length between the first distance band (distance band A) and the second distance band (distance band B) is displayed as non-route guidance display N. RD Since the display time of the route guide display R is shortened, the HUD device 100 can reduce the annoyance felt by the driver 4. D , Non-route guidance display N RD are superimposed on the foreground (FV) in the forward field of view of vehicle 1, and the route guidance display (R) D and non-route guidance display N RD For example, the image can be made to appear as if it is floating parallel to the road surface, either above or vertically, creating an AR effect, enhancing its visibility. RD It is also effective as a warning.

[0071] [Effects of the embodiment] The display control device of this embodiment is, for example, a display control device 300 that controls a display device (for example, an HUD device 100) that displays route guidance (a driving route DR (see FIGS. 4(A) and 4(B) to be described later)) for the vehicle 1, as shown in FIG. 2. The display control device 300 controls, for example, a route guidance display R that indicates the traveling direction of the vehicle 1 at a lane change point, as shown in FIGS. 4(A) and 4(B). D The display device is controlled to display the first distance band (distance band A) which is the distance band from the current position of the vehicle 1 to the route change point, and the non-route guidance point N which is a road that is not included in the route guidance and is located before the route change point. CP Non-route guidance sign indicating no entry to RD is a distance from the current position of vehicle 1 to non-route guidance point N that is shorter than the first distance band (distance band A). CPThe control unit 200 controls the display device to display in a second distance range (distance range B), which is a distance range up to.

[0072] According to the display control device 300 of this embodiment, the control unit 200 displays the route guidance display R D The route guide point N is a road that is not included in the route guide. CP Non-route guidance sign indicating no entry to RD In this case, the route guidance display R displayed on the display device (for example, the HUD device 100) is displayed to the driver 4 who is the viewer. D and the difference in length between the first distance band (distance band A) and the second distance band (distance band B) is displayed as non-route guidance display N. RD Since the display time of the message is shortened, the annoyance felt by the driver 4 can be reduced accordingly.

[0073] Furthermore, according to the display control device 300 of this embodiment, the control unit 200 controls the route guidance display R D Then, non-route guidance display N RD After that, when vehicle 1 passes the second distance zone (distance zone B), non-route guidance display N RD In order to control the erasure of non-route guidance display N RD Since the display time of the message is shortened, the annoyance felt by the driver 4 can be reduced accordingly.

[0074] Furthermore, according to the display control device 300 of this embodiment, for example, as shown in FIG. 7, a first point N just before the lane change point is displayed. CP1 First non-route guidance display N RD1 There is a first point N CP1 The second point N closer CP2 Second non-route guidance display N RD2 If there is a second non-route guidance display N when the vehicle 1 enters the second distance zone (distance zone B'), the control unit 200RD2 is displayed on the display device (HUD device 100), and then when the vehicle 1 enters the first distance zone (distance zone B), a first non-route guidance display N RD1 Therefore, when the vehicle 1 reaches the second point N CP2 Second non-route guidance display N when passing RD2 is erased from the display device (HUD device 100), and then the first point N CP1 First non-route guidance display N when passing RD1 is erased from the display device (HUD device 100), the first non-route guidance display N is always displayed until the vehicle 1 reaches a point where it is necessary to select a traveling direction. RD1 , and a second non-route guidance display N RD2 is no longer displayed continuously, it is possible to reduce the annoyance felt by the driver 4 who is the viewer.

[0075] Furthermore, according to the display control device 300 of this embodiment, the control unit 200 CP1 The first distance band (distance band B) to the second point N CP2 When at least a part of the second distance band (distance band B') from RD1 and the second non-route guidance display N RD2 In order to control the display of the non-route guidance point N, which is a road not included in the route guidance, to the driver 4 who is the viewer, before arriving at the lane change point. CP There are multiple (e.g., N CP1 ,N CP2 ) and by making the user aware in advance that they are concentrating, it is possible to raise their attention.

[0076] The head-up display device of this embodiment is, for example, a HUD device 100 that projects an image onto an imaging area (display area VA) that is virtually set in front of the vehicle 1, as shown in Fig. 1. The HUD device 100 has an image display unit 120 that displays an image that provides route guidance for the vehicle 1 obtained from the outside, superimposed on the foreground in the forward field of view of the vehicle 1, as shown in Fig. 2, for example, and a HUD control unit 110. The HUD control unit 110 displays a route guidance display R that indicates the traveling direction of the vehicle 1 at a lane change point, as shown in Figs. 4(A) and (B), for example. D The image display unit 120 is controlled to display the first distance band (distance band A) which is the distance band from the current position of the vehicle 1 to the lane change point, and the non-route guidance point N which is a road not included in the route guidance and is located before the lane change point is displayed. CP Non-route guidance sign indicating no entry to RD , and the non-route guidance point N shorter than the first distance band. CP The image display unit 120 is controlled to display the image in a second distance range (distance range B) that is a distance range up to .

[0077] According to the HUD device 100 of this embodiment, the control unit (HUD control unit 110) displays a route guidance display R D (For example, the arrow marker image shown in FIG. 5) is displayed in the first distance range (the distance range from the current position of the vehicle 1 to the non-route guidance display point N cp and displays the non-route guidance point N on the image display unit 120. CP Non-route guidance sign indicating no entry to RD 5) on the image display unit 120 in a second distance band (distance band B) that is shorter than the first distance band (distance band A). D and the difference in length between the first distance band (distance band A) and the second distance band (distance band B) is displayed as non-route guidance display N. RDSince the display time of the route guide display R is shortened, the HUD device 100 can reduce the annoyance felt by the driver 4. D , Non-route guidance display N RD Both are superimposed on the foreground (FV) in the forward field of view of vehicle 1 (see Figure 1), and the route guidance display R D and non-route guidance display N RD For example, the image can be made to appear as if it is floating upward parallel to the road surface or vertically, giving it an AR feel, which enhances its visibility. RD It is also effective as a warning.

[0078] The control method of the display device of this embodiment is, for example, a control method of a display device (e.g., HUD device 100) that displays route guidance (driving route DR (see FIGS. 4(A) and (B))) for a vehicle 1 as shown in FIG. 1. The control method is, for example, a method in which a control unit 200 that controls the display device as shown in FIG. 2 displays a route guidance display R that indicates the traveling direction of the vehicle 1 at a lane change point as shown in FIG. 3. D a first step (ST101 to ST104) of controlling the display device to display the route information in a first distance band (distance band A) that is a distance band from the current position of the vehicle 1 to the route change point; and a second step (ST102 to ST104) of controlling the display device to display the route information in a first distance band (distance band A) that is a distance band from the current position of the vehicle 1 to the route change point; CP Non-route guidance sign indicating no entry to RD is a distance from the current position of vehicle 1 to non-route guidance point N that is shorter than the first distance band (distance band A). CP and a second step (ST105 to ST106) of controlling the image display unit 120 to display in a second distance range (distance range B) that is a distance range up to.

[0079] According to the control method of the display device of this embodiment, the control unit 200 that controls the display device displays a route guidance display R that indicates the traveling direction of the vehicle 1 at the lane change point. D(for example, the arrow marker image shown in FIG. 5) is displayed on a display device (for example, the image display unit 120 of the HUD device 100) in a first distance band (distance band A) that is a distance band to the lane change point and is located just before the lane change point, and a non-route guidance point N that is a road that is not included in the route guidance is displayed. CP Non-route guidance sign indicating no entry to RD (For example, the no-entry marker image shown in FIG. 5) is displayed on the display device in a second distance range (distance range B) that is shorter than the first distance range (distance range A). Therefore, the route guidance display R D and the difference in length between the first distance band (distance band A) and the second distance band (distance band B) is displayed as non-route guidance display N. RD Since the display time of the message is shortened, the annoyance felt by the driver 4 can be reduced accordingly.

[0080] The program of the display control device of this embodiment is, for example, a program of a display control device 300 that controls a display device (for example, an HUD device 100) that provides route guidance display (travel route DR (see FIGS. 4(A) and (B))) of the vehicle 1, as shown in FIG. 2. The program causes a processor of the display control device 300 (control unit 200) to display, for example, a route guidance display R that indicates the traveling direction of the vehicle 1 at a lane change point, as shown in FIG. D a first process (steps ST101 to ST104) for controlling the display device to display the route information in a first distance band (distance band A) that is a distance band from the current position of the vehicle 1 to the route change point; and a second process (steps ST101 to ST104) for controlling the display device to display the route information in a non-route guidance point N that is a road that is not included in the route guidance and is located before the route change point. CP Non-route guidance sign indicating no entry to RD is a distance from the current position of vehicle 1 to a non-route guidance point N that is shorter than the first distance band. CP and a second process (steps ST105 to ST106) for controlling the display device to display in a second distance range (distance range B), which is a distance range up to.

[0081] According to the program of this embodiment, the processor of the display control device 300 sequentially reads and executes the program stored in the built-in or external memory, thereby displaying the route guidance display R that indicates the traveling direction of the vehicle 1 at the lane change point. D (the arrow marker image shown in FIG. 5) is displayed in the first distance range (the distance range from the current position of vehicle 1 to the non-route guidance display point N cp The distance band A) is included in a certain distance to the destination, and the non-route guidance point N is displayed on the display device. CP Non-route guidance sign indicating no entry to RD 5) on the display device in a second distance range (distance range B) that is shorter than the first distance range (distance range A). Therefore, the route guidance display R D and the difference in length between the first distance band (distance band A) and the second distance band (distance band B) is used to display non-route guidance. D Since the display time of the message is shortened, the annoyance felt by the driver 4 can be reduced accordingly.

[0082] 1 and 2, the vehicular display system of this embodiment includes a navigation device 400 that provides route guidance for the vehicle 1, and a route guidance display R in an imaging area (display area VA) that is virtually set in front of the vehicle 1. D The vehicular display system 1000 includes at least a head-up display device (HUD device 100) that projects a route guidance display R (roughly 10 ... D is displayed on the head-up display device 100 in a first distance band (distance band A) which is a distance band from the current position of the vehicle 1 to the route change point, and is displayed at a non-route guidance point N which is a road not included in the route guidance and is located before the route change point.CP Non-route guidance sign indicating no entry to RD is a distance from the current position of vehicle 1 to non-route guidance point N that is shorter than the first distance band (distance band A). CP The head-up display device 100 is controlled to display the second distance range (distance range B) up to the target distance.

[0083] According to the vehicle display system 1000 of this embodiment, the display control device 300 displays the route guidance display R , which indicates the traveling direction of the vehicle 1 at the course change point, acquired from the navigation device 400. D (For example, the arrow marker image shown in FIG. 5) is displayed in the first distance range (the distance range from the current position of the vehicle to the non-route guidance display point N cp The head-up display device 100 displays the non-route guidance point N, which is a road not included in the route guidance target, at a distance band A) included in a certain distance to the CP Non-route guidance sign indicating no entry to RD 5) in a second distance band (distance band B) that is shorter than the first distance band (distance band A). Therefore, the route guidance display R displayed on the head-up display device 100 is displayed to the driver 4 who is the viewer. D and the difference in length between the first distance band (distance band A) and the second distance band (distance band B) is displayed as non-route guidance display N. RD Since the display time of the above is shortened, it is possible to provide a vehicular display system 1000 that reduces the annoyance felt by the driver 4 accordingly.

[0084] The present invention is not limited to the above-described exemplary embodiments, and those skilled in the art will be able to easily modify the above-described exemplary embodiments to the extent that they fall within the scope of the claims. [Explanation of symbols]

[0085] 1···vehicle, 2···front windshield, 4···driver, 5···dashboard, 100···head-up display device (HUD device), 110···HUD control unit, 120···image display unit, 121···liquid crystal display, 122···relay optical system, 200···control unit, 300···display control device, 400···navigation device, 401···behavior sensor, 402···camera, 403···LiDAR, 500···I / O interface, 1000···vehicle display system, DR··driving route, R D Route guidance display, C P Route guidance point, N CP ··Points without route guidance, N RD ···No route guidance display, N CP1 First point, N CP2 ...second point, N RD1 First non-route guidance display, N RD2 Second non-route guidance display

Claims

1. A display control device that controls a display device that displays route guidance for a vehicle, A display control device having a control unit that controls the display device to display a route guidance display showing the vehicle's direction of travel at a course change point in a first distance band that is a distance band from the current position of the vehicle to the course change point, and controls the display device to display a non-route guidance display indicating that entry to a non-route guidance point that is located before the course change point and is not subject to route guidance, in a second distance band that is a distance band from the current position of the vehicle to the non-route guidance point, which is shorter than the first distance band.

2. The control unit The display control device according to claim 1 , further comprising control for erasing the non-route guidance display from the display device after the vehicle has passed through the two distance zones.

3. The control unit 2. The display control device according to claim 1, wherein, when a first non-route guidance indication is present at a first point just before the lane change point and a second non-route guidance indication is present at a second point just before the first point, the display control device sets the first distance band from the current position of the vehicle to the first point and the second distance band from the current position of the vehicle to the second point, displays the second non-route guidance indication on the display device when the vehicle enters the second distance band, and subsequently erases the second non-route guidance indication when the vehicle has passed the second distance band, and further controls the display device to display the first non-route guidance indication on the display device when the vehicle enters the first distance band, and subsequently erases the first non-route guidance indication when the vehicle has passed the first distance band.

4. The control unit 4. The display control device according to claim 3, wherein when at least a portion of the first distance band to the first point and the second distance band to the second point overlap, the display device is controlled to simultaneously display the first non-route guidance display and the second non-route guidance display.

5. A head-up display device that projects an image onto an imaging area that is virtually set in front of a vehicle, an image display unit that displays the image for providing route guidance for the vehicle, which is acquired from an external device, superimposed on a foreground in a forward field of view of the vehicle; a control unit that controls the image display unit to display a route guidance display showing the direction of travel of the vehicle at a lane change point in a first distance band that is a distance band from the current position of the vehicle to the lane change point, and controls the image display unit to display a non-route guidance display that indicates a no-entry to a non-route guidance point that is located before the lane change point and is a road that is not included in route guidance in a second distance band that is a distance band from the current position of the vehicle to the non-route guidance point, which is shorter than the first distance band.

6. A method for controlling a display device that displays route guidance for a vehicle, comprising: a control unit that controls the display device, a first step of controlling the display device to display a route guidance display indicating the traveling direction of the vehicle at a lane change point in a first distance band that is a distance band from a current position of the vehicle to the lane change point; and a second step of controlling the image display unit to display a non-route guidance display indicating that entry to a non-route guidance point, which is a road that is not included in route guidance and is located before the lane change point, is prohibited in a second distance band that is a distance band from the current position of the vehicle to the non-route guidance point, which is shorter than the first distance band.

7. A display control device program for controlling a display device having an image display unit that displays route guidance for a vehicle, A processor included in the display control device a first process of controlling the display device to display a route guidance display indicating the traveling direction of the vehicle at a lane change point in a first distance range that is a distance range from a current position of the vehicle to the lane change point; and a second process for controlling the display device to display a non-route guidance display indicating that entry to a non-route guidance point, which is a road that is not included in the route guidance and is located before the lane change point, is prohibited in a second distance range that is shorter than the first distance range and is the distance range from the current position of the vehicle to the non-route guidance point.

8. A display system for a vehicle including at least a navigation device that provides route guidance for a vehicle, a head-up display device that projects a route guidance image onto an imaging area that is virtually set in front of the vehicle, and a display control device including a control unit that controls display of the head-up display device, The display control device includes: The control unit controls the head-up display device to display the route guidance display, which indicates the vehicle's direction of travel at a course change point obtained from the navigation device, in a first distance band that is a distance band from the current position of the vehicle to the course change point, and controls the head-up display device to display a non-route guidance display, which indicates that entry to a non-route guidance point, which is a road before the course change point and is not subject to route guidance, is prohibited, in a second distance band that is a distance band from the current position of the vehicle to the non-route guidance point, which is shorter than the first distance band.

Images