JP6405722B2 - Vehicle display device - Google Patents

Description

  The present invention relates to a vehicle display device.

  A head-up display is known in which a display screen is a region that is superimposed on the outside world through the front window as viewed from the driver (see Patent Document 1). In Patent Document 1, a plurality of incentive icons are displayed superimposed on the outside in front of the traveling direction of the road on which the vehicle is traveling.

JP2013-196359A

  All incentive icons of Patent Document 1 are superimposed on the center portion in the width direction of the lane in which the vehicle travels. For this reason, when guiding the turning direction at the intersection, it is difficult to suggest the turning direction only with the incentive icon of Patent Document 1. If a new icon for guiding the turning direction is added, the foreground information may be obstructed.

  The present invention has been made in view of the above problems, and an object thereof is to provide a vehicle display device that suggests a turning direction of a vehicle in route guidance without obstructing foreground information.

  A display device for a vehicle according to an aspect of the present invention includes a display unit that displays an image for route guidance in an area where a vehicle occupant can visually recognize an external environment on a window glass of the vehicle, and an image viewed from the occupant. A display control unit that controls at least a display position of the image so as to be superimposed on a lane ahead of the vehicle. The display control unit displays a plurality of marks arranged along the lane in which the vehicle travels while being shifted in the turning direction of the vehicle in the route guidance from the center in the width direction of the lane in which the vehicle travels.

  According to the vehicle display device according to the aspect, it is possible to suggest that the vehicle turns in the shifted direction by shifting the plurality of marks from the center in the width direction of the lane in which the vehicle travels. Therefore, the turning direction of the vehicle in the route guidance can be suggested using a plurality of marks arranged on the lane in which the vehicle travels without adding a new mark that obstructs the foreground information.

FIG. 1 is a block diagram showing a configuration of a vehicle display device 10 according to the first embodiment. FIG. 2 is a block diagram showing a detailed configuration of the display controller 11 of FIG. FIG. 3A is a diagram showing a first display example of a plurality of marks, and FIG. 3B is a schematic diagram showing the positional relationship between the intersection BP and the current position WA of the vehicle in FIG. FIG. 3 (b) is a diagram showing a display example when approaching an intersection further from FIG. 3 (a), and FIG. 3 (d) is an illustration of the intersection BP and the vehicle in FIG. 3 (c). It is a schematic map which shows the positional relationship with the present position WA. FIG. 4 is a flowchart showing an example of a vehicle display method using the vehicle display device 10 of FIG. FIG. 5 is a diagram illustrating a second display example of a plurality of marks (M21 to M23). FIG. 6 is a diagram illustrating a third display example of a plurality of marks (M31 to M33). FIG. 7 is a diagram illustrating a fourth display example of a plurality of marks (M41 to M43,...). FIG. 8 is a diagram illustrating a fifth display example of a plurality of marks (M51 to M53). FIG. 9 is a diagram illustrating a sixth display example of a plurality of marks (M61 to M63).

  Hereinafter, embodiments of the present invention will be described with reference to a plurality of drawings. The same members are denoted by the same reference numerals and the description thereof is omitted.

(First embodiment)
With reference to FIG. 1, the structure of the display apparatus 10 for vehicles concerning 1st Embodiment is demonstrated. The vehicle display device 10 includes a display unit 12 that displays an image for route guidance in an area where a vehicle occupant can visually recognize the external environment in the window glass of the vehicle, and the lane in front of the vehicle when viewed from the occupant. A display control unit (11, 14 to 17) that controls at least the display position of the image so as to be superimposed on the vehicle, and route information acquisition that acquires information indicating a planned travel route from the current position of the vehicle to a predetermined destination A navigation device 13 as a unit. The display control unit (11, 14 to 17) includes a display controller 11, a steering angle sensor 14, a vehicle speed sensor 15, a viewpoint detection camera 16, and a switch 17.

  The navigation device 13 includes a map database, a vehicle position detector that receives a positioning signal such as a GPS signal and detects a current position on the map of the vehicle, and travels on the map to a destination preset by a vehicle occupant. A route calculation unit for calculating a planned route. The steering angle sensor 14 detects the steering angle of the vehicle by the steering operation of the occupant. The vehicle speed sensor 15 calculates the speed of the vehicle from the rotation period of the wheels. The current position on the map of the vehicle, the planned travel route, the steering angle, and the vehicle speed are input to the display controller 11.

  The viewpoint detection camera 16 images a region including the face of the occupant in order to measure the position of the occupant (for example, driver) eyes. The captured camera image is transferred to the display controller 11. The switch 17 is a switch that switches between a driving state and a non-driving state of the vehicle display device 10.

  Based on the input information (position on the map of the vehicle, planned travel route, steering angle, vehicle speed, camera image), the display controller 11 superimposes the image on the lane ahead of the vehicle as viewed from the occupant. An image is displayed on the display unit 12. Specifically, the display controller 11 causes the display unit 12 to display a plurality of marks arranged along the lane in which the vehicle travels as an image. For example, when the planned travel route is a route that travels straight in a lane in which the vehicle is currently traveling, a plurality of marks are superimposed at the center in the width direction of the lane in which the vehicle is traveling (hereinafter referred to as “complement point”) Thus, the display controller 11 controls the display position of the mark. Furthermore, when the plurality of marks are similar in shape, the marks are made smaller as the position on the lane where the marks are superimposed as viewed from the occupant becomes farther from the vehicle. Thereby, the plurality of marks arranged along the lane in which the vehicle travels can indicate to the occupant the track of the vehicle, that is, the planned travel route. The detailed configuration of the display controller 11 will be described later with reference to FIG.

  The display unit 12 is a head-up display that uses a vehicle window glass (for example, a windshield) as a display screen. The display unit 12 includes a projection unit that projects an image on the window glass as a virtual image. For example, the virtual image gathers in the image in front of the windshield in the traveling direction. The occupant can visually recognize an image superimposed on the external environment (for example, a lane in front of the vehicle) in front of the traveling direction through a virtual image projected on the windshield.

  A detailed configuration of the display controller 11 of FIG. 1 will be described with reference to FIG. The display controller 11 is composed of, for example, a microcomputer mounted on a vehicle, and functions as a calculation unit shown below when the microcomputer executes a computer program installed in advance. That is, the display controller 11 functions as an intersection position detection unit 21, a coordinate conversion unit 22, a mark display position calculation unit 23, a mark formation unit 24, and a display image generation unit 25. The computer program includes a program for causing the microcomputer to function as the navigation device 13, the steering angle sensor 14, the vehicle speed sensor 15, the viewpoint detection camera 16, and the control unit of the display unit 12.

  The intersection position detection unit 21 is on the planned travel route from the current position of the vehicle to the destination based on the information on the current position and the planned travel route on the map of the vehicle input from the navigation device 13 and the vehicle turns. Extract power intersections. Then, information on the distance from the current position of the vehicle to the intersection and the position of the complementary point on the planned travel route from the current position of the vehicle to the intersection is acquired.

  The coordinate conversion unit 22 converts the position (three-dimensional coordinates) on the map of the intersection and the complementary point into two-dimensional coordinates in the virtual image display of the display unit 12. The display position of the image, that is, the plurality of marks is determined based on the positions of the intersection and the complementary point when viewed from the passenger. Therefore, it is necessary to determine in which position the intersection and the complementary point are visible to the occupant in the frame displayed by the display unit 12.

  The mark display position calculation unit 23 calculates the display positions of a plurality of marks, that is, two-dimensional coordinates in virtual image display, based on the information on the turning direction at the intersection and the positions of the intersection and the complementary point. Specifically, the mark display position calculation unit 23 shifts a plurality of marks arranged along the lane in which the vehicle travels in the vehicle turning direction from the center (complementary point) in the width direction of the lane in which the vehicle travels. It is displayed on the display unit 12. Details of the display positions of the plurality of marks will be described later with reference to FIG.

  In addition, the mark display position calculation unit 23 performs communication time required for communication with the external environment, image processing time required for image processing, and drawing time required for image drawing to be displayed in order to display an image on the display unit 12. The display positions of the plurality of marks are calculated in consideration of at least one of them. Due to the movement of the vehicle during the communication time, the image processing time, or the drawing time, the two-dimensional coordinates in the virtual image display of the intersection and the complementary point change. Along with this, the display positions of the plurality of marks also change. Therefore, the mark display position calculation unit 23 calculates the correction amount of the display positions of the plurality of marks based on the information on the steering angle and the vehicle speed, the communication time, the image processing time, or the drawing time, and the correction amount Is used to calculate the display positions of a plurality of marks. Since the communication time, the image processing time, and the drawing time are specific values determined according to the processing capability of the microcomputer, a predetermined time may be used for the calculation.

  The mark forming unit 24 forms a plurality of marks based on the shape set by the user. Examples of shapes that can be set by the user will be described later with reference to FIGS. 3 and 5 to 9.

  The display image generating unit 25 generates a plurality of marks formed by the mark forming unit 24 as images that can be displayed on the display unit 12. The plurality of marks as the generated image are output to the display unit 12 and projected onto the windshield by the display unit 12.

  FIG. 3A is a diagram illustrating a first display example of a plurality of marks (M11 to M13), and FIG. 3B is a diagram illustrating an intersection between the intersection BP in FIG. 3A and the current position WA of the vehicle. It is a schematic map which shows a positional relationship. Here, there is an intersection BP on which the vehicle is to turn on the planned travel route TOC, and the road from the current position WA to the intersection BP curves to the right. That is, the road shape is a blind corner. For this reason, the intersection BP is outside the range that the display unit 12 can display. Therefore, the display unit 12 cannot superimpose an image for route guidance on the position of the intersection BP. In other words, the intersection BP is out of the region where the vehicle occupant can visually recognize the external environment in the window glass of the vehicle. In this case, the display controller 11 turns the plurality of marks (M11 to M13) arranged along the lane DL in which the vehicle travels in the route guidance from the center (complementary point) in the width direction of the lane in which the vehicle travels. It is shifted in the direction and displayed on the display unit 12. A line TC shown in FIG. 3A indicates a “display center line” that connects complementary points (CP1 to CP4) of the lane.

  Specifically, three marks (M11 to M13) arranged along the lane DL on which the vehicle travels are displayed on the display unit 12. The mark M11 is superimposed at a position closest to the vehicle. The center of gravity of the mark M11 coincides with the display center line TC. On the other hand, the marks (M12, M13) are superimposed at a position farther than the mark M11. The turning direction of the vehicle at the intersection BP is the left direction. For this reason, the barycentric position of the mark (M12, M13) is superimposed at a position shifted leftward from the display center line TC. Further, the mark M13 is superimposed at a position farther than the mark M12. For this reason, the shift amount (S3) of the mark M13 from the display center line TC is increased more than the shift amount (S2) of the mark M12. That is, the display controller 11 increases the amount of misalignment of the mark (S2, S3) as the position of the external environment where the mark is superimposed is farther from the vehicle. This makes it easier for the occupant to recognize the turning direction of the vehicle at the intersection BP.

  In the first display example of FIG. 3A, the deviation amount of the mark M11 is set to zero. However, similarly to the marks (M12, M13), the position of the center of gravity of the mark M11 may be shifted in the turning direction (left direction) of the vehicle with respect to the display center line TC.

  In FIG. 3A, each of the marks (M11 to M13) has a triangular shape as an example of a polygonal shape. In the case of a triangle, each of the marks (M11 to M13) can indicate the traveling direction of the vehicle. For this reason, as a method of shifting the display position, the display position may be translated in the vehicle width direction without changing the direction of the marks (M11 to M13). However, the present invention is not limited to this, and the orientation of each of the marks (M11 to M13) may be changed so that triangular vertices are arranged along a line connecting the center of gravity positions of the marks (M11 to M13). This makes it easier for the passenger to recognize the turning direction of the vehicle at the intersection BP.

  FIG. 3B is a diagram showing a display example when approaching the intersection BP further from FIG. 3A, and FIG. 3D shows the intersection BP in FIG. 3C and the current position WA of the vehicle. Is a schematic map showing the positional relationship between When the vehicle approaches the intersection BP, the intersection BP is included in an area where the vehicle occupant can visually recognize the external environment in the window glass of the vehicle. The display unit 12 can superimpose an image on the position of the intersection BP. In this case, the display controller 11 makes the barycentric positions of the three marks (M11 to M13) arranged on the lane DL where the vehicle travels coincide with the display center line TC. That is, the positional deviation amount of the marks (M11 to M13) is set to zero. Then, the display controller 11 adds a new icon G that guides the turning direction. The icon G is displayed superimposed on the vicinity of the base point BP of the intersection, and has a shape that directly indicates the turning direction (left direction).

  In the series of display examples shown in FIGS. 3A to 3D, when the image cannot be superimposed at the position where the vehicle turns, until the image can be superimposed at the position where the vehicle turns. Only the marks (M11 to M13) were superimposed at positions shifted from the display center line TC. However, the present invention is not limited to this, and the mark (M11 to M13) may be superimposed at a position shifted from the display center line TC even when the image can be superimposed at the position where the vehicle turns. In this case, it is not necessary to add a new icon G shown in FIG. 3C, and foreground information can be further inhibited from being inhibited.

  An example of the processing operation of the display controller 11 in FIG. 2 will be described with reference to FIG. First, in step S01, the intersection position detection unit 21 extracts an intersection that is on the planned travel route from the current position of the vehicle to the destination and should be turned by the vehicle, and acquires information on the turning direction at the intersection. . The intersection position detection unit 21 acquires information on the distance from the current position of the vehicle to the intersection and the position of the complementary point.

  Proceeding to step S03, the coordinate conversion unit 22 converts the position (three-dimensional coordinates) on the map of the intersection and the complementary point into two-dimensional coordinates in the virtual image display of the display unit 12.

  In step S05, the mark display position calculation unit 23 corrects the two-dimensional coordinates of the intersection and the complementary point in consideration of at least one of the communication time, the image processing time, and the drawing time.

  In step S07, the mark display position calculation unit 23 calculates the display positions of a plurality of marks, that is, the two-dimensional coordinates in the virtual image display, based on the information on the turning direction at the intersection and the two-dimensional coordinates of the corrected intersection and the complementary point. To do.

  In step S09, the display controller 11 determines whether or not the distance (D) from the current position of the vehicle acquired in step S01 to the intersection is equal to or less than a predetermined threshold value (Th, for example, 100 m). to decide. If the distance (D) is equal to or smaller than the threshold value (Th) (YES in S09), it is determined that it is necessary to suggest the turning direction at the intersection using the mark, and the process proceeds to step S11. On the other hand, if the distance (D) is longer than the threshold value (Th) (NO in S09), it is determined that there is no need to suggest the turning direction at the intersection, and the flowchart shown in FIG.

  In step S11, it is determined whether an image can be superimposed on the position of the intersection BP. When the position of the intersection BP deviates from the angle of view that can be displayed by the display unit 12 (NO in S11), it is necessary to indicate the turning direction of the vehicle using the marks (M11 to M13) arranged on the lane DL. The process proceeds to step S13. On the other hand, when the position of the intersection BP is within the angle of view that can be displayed by the display unit 12 (YES in S11), a new icon G for guiding the turning direction is displayed superimposed on the vicinity of the intersection base point BP. Therefore, the process proceeds to step S17.

  In step S13, the mark display position calculation unit 23 calculates the display center line TC based on the two-dimensional coordinates of the corrected complementary point. In step S15, the mark display position calculation unit 23 adjusts the display positions of the plurality of marks calculated in step S07. Specifically, the display positions of the plurality of marks (M12, M13) arranged on the lane in which the vehicle travels are shifted from the display center line TC in the turning direction of the vehicle.

  In step S17, the mark forming unit 24 forms a plurality of marks (M11 to M13) shown in FIG. 3A based on the shape set by the user. Then, the display image generating unit 25 generates a plurality of marks (M11 to M13) formed by the mark forming unit 24 as images that can be displayed on the display unit 12. The plurality of marks as the generated image are output to the display unit 12 and projected onto the windshield by the display unit 12. In the case of YES in step S11, similar processing is performed not only for the marks (M11 to M13) but also for the new icon G that guides the turning direction.

  As described above, according to the first embodiment, the following operational effects can be obtained.

  A plurality of marks (M11 to M13) arranged along the lane in which the vehicle travels suggests the track of the vehicle to the occupant. By shifting the plurality of marks (M11 to M13) from the center (display center line TC) in the width direction of the lane DL on which the vehicle travels, it can be suggested that the vehicle turns in the shifted direction. Therefore, the turning direction of the vehicle in the route plan can be suggested using a plurality of marks arranged along the lane in which the vehicle travels without adding a new mark that obstructs the foreground information.

  The display controller 11 makes it easier for the occupant to recognize the turning direction of the vehicle by increasing the deviation amount of the mark as the position of the lane ahead of the vehicle on which the mark (M11 to M13) is superimposed becomes farther from the vehicle.

  The display controller 11 performs at least one of a communication time required for communication with an external environment, an image processing time required for image processing, and a drawing time required for image drawing to be displayed on the display unit 12. In consideration of this, the display position of the mark is calculated. Thereby, it is possible to correct the mark position shift due to the movement of the vehicle during the communication time, the image processing time, or the drawing time.

  As shown in FIG. 3A, an image may not be superimposed on the position where the vehicle turns depending on the distance to the position where the vehicle turns (base point BP), the shape of the road, or the presence or absence of an obstacle. For example, an image may not be superposed by an obstacle including a preceding vehicle, a front stop vehicle, a structure, and the like. Furthermore, when the vehicle is located at the start of the downhill, the image cannot be superimposed on the position where the vehicle turns. In this case, the vehicle cannot be suggested to the occupant using the image. However, the vehicle turns in the shifted direction by shifting the plurality of marks (M11 to M13) arranged on the lane in which the vehicle travels from the center (display center line TC) in the width direction of the lane DL in which the vehicle travels. Can suggest that.

  As shown in FIG. 3C, there is a case where an image (icon G) can be superimposed on the position where the vehicle turns by shortening the distance to the position where the vehicle turns (base point BP). Therefore, a plurality of marks (M11 to M13) arranged on the lane in which the vehicle travels are displayed in the width direction of the lane DL in which the vehicle travels until the image can be superimposed on the position where the vehicle turns (base point BP). By shifting from the center (display center line TC), it can be suggested that the vehicle turns in the shifted direction.

(Second Embodiment)
In the second embodiment, a second display example of a plurality of marks (M21 to M23) will be described with reference to FIG. The second display example shown in FIG. 5 shows the same situation as the positional relationship between the intersection BP and the current position WA of the vehicle shown in FIG. That is, the road to the intersection BP scheduled to turn is a blind corner, and the intersection BP is out of the range that the display unit 12 can display. Therefore, the display unit 12 cannot superimpose an image on the position of the intersection BP.

  The display unit 12 displays a plurality of marks (M21 to M23) arranged along the lane DL where the vehicle travels. Each shape of the plurality of marks (M21 to M23) is a triangle as an example of a polygon. In step S15 of FIG. 4, the display controller 11 shifts the display positions of the plurality of marks (M21 to M23) in the vehicle turning direction from the display center line TC. Further, as shown in FIG. 5, among the three vertices included in the triangular shape, the shapes of the plurality of marks (M21 to M23) are deformed so that the vertices (K1 to K3) on the turning direction side shift in the turning direction. . Thereby, the angle of the vertices (K1 to K3) on the turning direction side becomes smaller than the other vertices, and it can be expressed that the turn is made in the direction of the vertices (K1 to K3) having a smaller angle. In the example of FIG. 5, each of the plurality of marks (M21 to M23) has an isosceles triangle shape in which the lengths of two sides intersecting at the vertices (K1 to K3) are equal. Furthermore, the direction of the base of each isosceles triangle is parallel to the display center line TC. Further, the angles of the vertices (K1 to K3) are set smaller as the distance from the position of the external environment where the marks (M21 to M23) are superimposed to the vehicle is longer.

  By displaying the plurality of marks (M21 to M23) described above, the occupant can easily recognize the turning direction of the vehicle.

(Third embodiment)
In the third embodiment, a third display example of a plurality of marks (M31 to M33) will be described with reference to FIG. The third display example shown in FIG. 6 also shows the same situation as the positional relationship between the intersection BP and the current position WA of the vehicle shown in FIG.

  The display unit 12 displays a plurality of marks (M31 to M33) arranged along the lane DL where the vehicle travels. Each shape of the plurality of marks (M31 to M33) is a triangle as an example of a polygon. In step S15 of FIG. 4, the display controller 11 shifts the display positions of the plurality of marks (M31 to M33) in the vehicle turning direction from the display center line TC. Furthermore, as shown in FIG. 5, the display controller 11 provides each of the plurality of marks (M31 to M33) with a brightness gradient such that the brightness gradually increases as the turning direction is closer. Thus, the brightness of each of the plurality of marks (M31 to M33) gradually increases as it approaches the turning direction, so that the occupant can easily recognize the turning direction of the vehicle. In the example of FIG. 6, the widths (GD1, GD2, GD3) of areas where luminance gradients are provided are different among the plurality of marks (M31 to M33). As the position of the external environment on which the marks (M31 to M33) are superimposed is farther from the vehicle, the width (GD1, GD2, GD3) of the region where the luminance gradient is provided is increased. Thereby, it becomes easier for the passenger to recognize the turning direction of the vehicle.

(Fourth embodiment)
In the fourth embodiment, a fourth display example of a plurality of marks (M41 to M43,...) Will be described with reference to FIG. The fourth display example shown in FIG. 7 also shows the same situation as the positional relationship between the intersection BP and the current position WA of the vehicle shown in FIG.

  The display unit 12 displays a plurality of marks (M41 to M43,...) Arranged along the lane DL where the vehicle travels. Each of the plurality of marks (M41 to M43,...) Is circular. In the case of a circular shape, each of the plurality of marks (M41 to M43,...) Is deformed and displayed so as to extend in the width direction of the lane DL so as to recall a perfect circle when viewed from a direction perpendicular to the road surface. The amount of deformation can be changed according to the distance to the position on the lane where each mark is superimposed. Also, the number of marks is larger than in the case of a polygon. In the case of a polygon, each mark itself has a function of suggesting the direction in which the vehicle should travel. On the other hand, since the circular shape does not have the above-described function, it becomes easier for the occupant to recognize the direction in which the vehicle should travel by arranging more marks in close proximity.

  The center of gravity positions of other marks (M42, M43,...) Excluding the mark M41 superimposed at the position closest to the vehicle are superimposed at positions shifted leftward from the display center line TC. Further, the display controller 11 increases the amount of misalignment of the mark as the position on the lane where the mark is superimposed is farther from the vehicle. This makes it easier for the occupant to recognize the turning direction of the vehicle at the intersection BP.

(Fifth embodiment)
In the fifth embodiment, a fifth display example of a plurality of marks (M51 to M53) will be described with reference to FIG. The fifth display example shown in FIG. 8 also shows the same situation as the positional relationship between the intersection BP and the current position WA of the vehicle shown in FIG.

  The display unit 12 displays a plurality of marks (M51 to M53) arranged along the lane DL on which the vehicle travels. Each of the plurality of marks (M51 to M53) is a triangle as an example of a polygon. However, unlike the other display examples, the corners of the vertices are cut off, and the vertices are formed by curves.

  As shown in FIG. 8, the display controller 11 includes a plurality of display controllers 11 such that, as shown in FIG. 8, the vertex portions (K1 to K3) on the turning direction side of the three vertex portions included in the triangular shape are shifted in the turning direction. The shape of the marks (M21 to M23) is deformed, and corner portions are provided at the apex portions (K1 to K3) on the turning direction side. Thereby, a corner | angular part is formed only in the vertex part (K1-K3) by the side of a turning direction, and another vertex part is formed with a curve. For this reason, it can express that it turns in the direction of the vertex part (K1-K3) in which the corner | angular part was formed.

  In the example of FIG. 8, the gravity center positions of the plurality of marks (M21 to M23) are made to coincide on the display center line TC. It does not matter if it is shifted in the turning direction. Furthermore, the amount of deviation may be changed according to the distance from the vehicle to the overlapping position of the marks (M21 to M23).

(Sixth embodiment)
In the sixth embodiment, a sixth display example of a plurality of marks (M61 to M63) will be described with reference to FIG. The sixth display example shown in FIG. 9 also shows the same situation as the positional relationship between the intersection BP and the current position WA of the vehicle shown in FIG.

  The display unit 12 displays a plurality of marks (M61 to M63) arranged along the lane DL in which the vehicle travels. Each of the plurality of marks (M61 to M63) is a triangle as an example of a polygon.

  In step S15 in FIG. 4, the display controller 11 displays a new icon (M61 ′, M61 ′) indicating the turning direction around the turning direction side vertex among the three vertices included in the triangular shape as shown in FIG. M62 ′, M63 ′) are added. The display controller 11 causes the display unit 12 to display an image in which new icons (M61 ', M62', M63 ') and a plurality of marks (M61 to M63) are combined.

  In the example of FIG. 9, the turning direction is suggested only by adding new icons (M61 ', M62', M63 '). Not limited to this, the center of gravity of the mark may be shifted from the display center line TC in the turning direction, or the amount of shift may be changed according to the distance from the vehicle to the mark overlapping position.

  As described above, the first to sixth embodiments of the present invention have been described. However, it should not be understood that the description and drawings constituting a part of this disclosure limit the present invention. From this disclosure, various alternative embodiments, examples and operational techniques will be apparent to those skilled in the art.

11 Display controller (display controller)
12 Display unit 13 Navigation devices K1 to K3 Vertex M11 to M13, M21 to M23, M31 to M33, M41 to M43, M51 to M53, M61 to M63 Multiple marks S2, S3 Deviation amount TC Display center line (lane width direction Center)

Claims (6)

A display unit that displays an image for route guidance in an area where a vehicle occupant can visually recognize the external environment of the vehicle window glass;
A display control unit that controls at least a display position of the image so that the image is superimposed on a lane ahead of the vehicle when viewed from the occupant,
When the image cannot be superimposed on the position where the vehicle turns, the display control unit displays, as the image, a plurality of marks arranged along the lane in which the vehicle travels in the width direction of the lane in which the vehicle travels. A display device for a vehicle, wherein the display unit displays the position shifted in the turning direction of the vehicle in the route guidance from the center. A display unit that displays an image for route guidance in an area where a vehicle occupant can visually recognize the external environment of the vehicle window glass;
A display control unit that controls at least a display position of the image so that the image is superimposed on a lane ahead of the vehicle when viewed from the occupant,
Until the image can be superimposed at a position where the vehicle turns, the display control unit displays, as the image, a plurality of marks arranged along the lane in which the vehicle travels, and a lane in which the vehicle travels. The vehicle display device is displayed on the display unit while being shifted in the turning direction of the vehicle in the route guidance from the center in the width direction. The display controller, farther position of the lane in which the mark is superimposed from the vehicle, the vehicle display device according to claim 1 or 2, characterized in that to increase the shift amount of the mark. Each of the marks has a polygonal shape,
The display controller, among the vertices included in the polygons, any claim 1-3 in which the vertices of the side of the turning direction, characterized in that the deforming shape of the mark to be shifted to the turning direction vehicle display device according to an item or. The display controller to each of the mark, according to any one of claims 1 to 4, characterized in that providing a luminance gradient such as higher the luminance is gradually increased closer to the turning direction Vehicle display device. The display control unit is configured to display a communication time required to communicate with the external environment, an image processing time required to process the image, and a drawing time required to draw the image to display the image on the display unit. out taking into account at least one vehicle display device according to any one of claims 1 to 5, characterized in that for calculating the display position of the mark.