JP6300741B2 - Vehicle display device - Google Patents

Description

  The present invention relates to a vehicle display device that displays a guidance route at an intersection.

  Recently, a head-up for a vehicle that projects a display image on the windshield of a vehicle, forms a virtual image in front of the driver, and visually recognizes the display image without dropping the line of sight even while driving. Display devices (vehicle display devices) have been put into practical use (for example, Patent Document 1).

  In the route guidance data display device using the head-up display described in Patent Document 1, the guidance route at the intersection ahead of the traveling direction is displayed using a display device composed of a plurality of segments.

JP-A-8-190696

  However, in the vehicle head-up display (vehicle display device) described in Patent Document 1, the guide route is displayed by an arrow display indicating the direction of the guide route and an indicator display indicating the distance to the intersection. .

  In the vehicle head-up display (vehicle display device) described in Patent Document 1, an arrow display indicating the direction of the guidance route and an indicator display indicating the distance to the intersection are simultaneously performed. As a result, there is a possibility that the instantaneous readability of the display and the ease of recognition may deteriorate.

  The present invention has been made in view of such conventional problems, and an object of the present invention is to provide a route guidance display excellent in instantaneous reading.

In order to solve the above-described problem, a vehicle display device according to the present invention reflects a projection light projected from a display unit with a reflective member, and displays a guidance route at an intersection as a virtual image in front of the driver. The display unit covers a lighting box having a plurality of hollow reflecting surfaces each having a light source disposed thereon, and an emission portion of the reflecting surface provided on the surface of the lighting box. A guide route display segment, the guide route display segment including a first display segment indicating a position of an intersection, a plurality of second display segments surrounding the first display segment, and the plurality of second display segments. A plurality of display segments provided on the outer periphery of the display segment, and having a shape different from that of the first display segment and the second display segment. 3 display segments, and by turning on at least two display segments of the first display segment, the second display segment, and the third display segment, it is possible to display the guidance route, A distance calculation unit that calculates a distance to an intersection, a segment lighting state control unit that performs a combination of lighting and extinguishing based on the distance for the plurality of display segments that display the guidance route; have a said segment lighting state control unit, the distance which the distance detected by the calculation unit, be less than the upper limit value of the distance to perform guidance route display, when larger than yet a first predetermined distance, said The display segment representing the guide route is lit in the first lighting pattern,
When the distance is smaller than the first predetermined distance, the display segment representing the guide route is turned on with a second lighting pattern different from the first lighting pattern,
One of the first lighting pattern and the second lighting pattern includes a pattern in which a display segment representing the guidance route is repeatedly lit in a direction passing through the intersection. .

  According to the vehicular display device according to the present invention, since the above-described configuration is used, the guidance route is displayed by a combination of lighting and extinguishing of a plurality of display segments based on the distance to the front intersection. Easy to understand route guidance display.

It is a lineblock diagram of the head up display device for vehicles which is one embodiment of the present invention. It is a figure which shows the structure of the guidance path | route display segment used for the segment type | mold display part of the head-up display apparatus for vehicles of Example 1. FIG. It is sectional drawing which shows the cross-sectional structure which cut | disconnected the segment type | mold display part of FIG. 1 by the cutting line AA. In Example 1, an example of the virtual image showing the guidance route displayed when the distance from the vehicle to the intersection is less than the upper limit value of the distance for performing the guidance route display and is larger than the first predetermined distance is shown. It is a state transition diagram. In the first embodiment, an example of a virtual image representing a guidance route displayed when the distance from the vehicle to the intersection is between the first predetermined distance and the second predetermined distance smaller than the first predetermined distance. FIG. In Example 1, it is a state transition diagram which shows an example of the virtual image showing the guidance path | route displayed when the distance from a vehicle to an intersection is smaller than a 2nd predetermined distance. In Example 1, it is a figure which shows the example which performed the virtual image display of the guidance path | route in roundabout. In Example 1, it is a figure which shows the example which performed the virtual image display of the guidance path | route in an underpass.

  Hereinafter, Example 1 which is a specific embodiment of the vehicle display device of the present invention will be described with reference to the drawings.

FIG. 1 is a configuration diagram showing a schematic structure of a vehicle head-up display device 100 according to an embodiment of the present invention. First, the overall configuration of the vehicle head-up display device 100 will be described with reference to FIG.
[Description of Overall Configuration of Embodiment 1]

  The vehicle head-up display device 100 is mounted on the vehicle 10 as shown in FIG. 1, and includes a segment type display unit 40 (display unit), a combiner 50 (reflective member), a segment lighting state control unit 60, And a car navigation device 70.

The segment type display unit 40 (display unit) includes an illumination mounting board 20 on which a plurality of illumination light sources are mounted, a lighting box 25, and a display board 30 (or a dial) .

The display panel 30 is formed in a planar shape on the surface of the segment type display unit 40, and the front side of the vehicle 10 is disposed at a position closer to the combiner 50, and the rear side of the vehicle 10 is disposed at a position further away from the combiner 50. It is installed to be. On the surface of the display board 30, guidance route display segments 31 (display segments) that are a plurality of light-transmitting fixed segments that indicate the traveling direction of the vehicle 10 are provided.

  The guidance route display segment 31 (display segment) includes a plurality of segments that represent the guidance route of the vehicle 10. Specifically, it is composed of a first display segment 36, a second display segment 34 surrounding the first display segment 36 in a ring shape, and a third display segment 32 provided on the outer periphery of the second display segment 34. Yes. A more specific configuration of the guide route display segment 31 and an internal structure of the segment type display unit 40 (display unit) will be described later.

  The combiner 50 (reflective member) is installed on the upper part of the dashboard (not shown) of the vehicle 10, and the projection light 45 projected from the segment type display unit 40 (display unit) is transmitted to the driver 80 of the vehicle 10. This is a reflective member made of, for example, black polycarbonate, arranged in a positional relationship so as to reflect toward the eyeball 82.

  The car navigation device 70 further includes a guidance route calculation unit 72, a nearest intersection detection unit 74, a distance calculation unit 76, and a map database 78.

  The guidance route calculation unit 72 measures the current position of the vehicle 10 and compares the measured current position with a map database 78 included in the car navigation device 70 to calculate a guidance route to a preset destination. To do.

  The nearest intersection detection unit 74 refers to the map database 78 based on the current position of the vehicle 10 and the calculated guide route information, and the shape of the intersection in the traveling direction (the nearest intersection) and the traveling direction of the vehicle 10 at the intersection. Is detected.

  The distance calculation unit 76 calculates the distance d to the nearest intersection. The distance d can be calculated from the current position of the vehicle 10 and the position of the nearest intersection.

  The segment lighting state control unit 60 receives the shape of the intersection ahead of the traveling direction and the traveling direction, and the distance to the intersection, which are output from the car navigation device 70, and the vehicle 10 determines whether or not the vehicle 10 is in accordance with the distance to the intersection. The course (guidance route) to be taken at the intersection is figured out and displayed on the segment type display unit 40 (display unit).

  Specifically, the segment lighting state control unit 60 is based on the intersection shape information received from the car navigation device 70 and the guidance route of the vehicle 10 and a plurality of illumination light sources (white to be described later) mounted on the illumination mounting board 20. With respect to each of the LEDs), a lighting state and a light-off state are determined, and a lighting control is performed. By this lighting on / off control, the guidance route of the vehicle 10 is displayed on the guidance route display segment 31 (display segment).

The guidance path displayed on the segment type display unit 40 (display unit) in this way is projected onto the combiner 50 (reflective member) as projection light 45. Since the projection light 45 is reflected by the combiner 50 toward the eyeball 82 of the driver 80, when viewed from the driver 80, a virtual image 55 of the guidance path is formed in front of the combiner 50, that is, in the traveling direction of the vehicle 10. .
[Description of configuration of segment type display unit]

FIG. 2 shows a configuration of the guide route display segment 31 (display segment) formed on the display board 30 described above. As shown in FIG. 1, the guide route display segment 31 is formed on the display plate 30 of the segment type display unit 40 (display unit). FIG. 3 is a cross-sectional view of the segment type display unit 40 of FIG. 1 taken along a cutting line AA.

  The guide route display segment 31 (display segment) is composed of a plurality of fixed segments as shown in FIG. That is, the guide route display segment 31 includes a first display segment 36 at the center, a second display segment 34 composed of eight segments surrounding the first display segment 36 in an annular shape, and a further outer periphery of the second display segment 34. It is composed of a third display segment 32 made up of eight segments. In FIG. 2, the upper side of the page represents the side farther from the vehicle 10, and the lower side of the page represents the side closer to the vehicle 10.

  The first display segment 36 represents the center position of an intersection existing in front of the vehicle 10.

  The second display segment 34 includes eight segments 34a, 34b, 34c, 34d, 34e, 34f, 34g, and 34h that surround the first display segment 36 in a ring shape, and represents two types of route information.

  One is the traveling direction of the vehicle 10 after passing the intersection indicated by the first display segment 36. Specifically, the segment 34d represents the approach direction to the intersection, and the segments 34a, 34b, 34c, 34e, 34f, 34g, and 34h represent the exit direction from the intersection.

  The other is the traveling direction of the vehicle 10 at a roundabout or a three-dimensional intersection existing in front of the vehicle 10. Specifically, the segment 34d represents a first course change place that enters a roundabout or a three-dimensional intersection. Segments 34a, 34b, 34c, 34e, 34f, 34g, and 34h represent a route after passing through the first route change point, and a second route change point that escapes from a roundabout or a three-dimensional intersection.

  The third display segment 32 includes eight segments 32a, 32b, 32c, 32d, 32e, 32f, 32g, and 32h that further surround the outer periphery of the second display segment 34, and represents two types of route information.

  One is an escape direction from the intersection indicated by the first display segment 36. Specifically, the segment 32d represents the current position of the vehicle 10, and the segments 32a, 32b, 32c, 32e, 32f, 32g, and 32h represent the escape direction from the intersection.

  The other is an escape direction from a roundabout or a three-dimensional intersection existing in front of the vehicle 10. Specifically, the segment 32d represents the current position of the vehicle 10, and the segments 32a, 32b, 32c, 32e, 32f, 32g, and 32h represent the escape direction from a roundabout or a three-dimensional intersection.

  Next, the internal structure of the segment type display unit 40 (display unit) will be described with reference to FIG. The segment type display unit 40 has a trapezoidal vertical cross-sectional shape, and the illumination mounting substrate 20 is installed on a surface corresponding to the height of the trapezoid.

  A plurality of white LEDs 22a, 22b, 22c, 22d, and 22e are mounted on the surface of the illumination mounting board 20.

In the interior of the lighting box 25, the white LEDs 22a, 22b, 22c, 22d, and 22e are formed as cavities that surround the LEDs and extend upward. On the inner surfaces 25a, 25b, 25c, 25d, and 25e of the cavities, there are formed reflecting surfaces that reflect the light emitted from the white LEDs 22a, 22b, 22c, 22d, and 22e toward the upper side of the lighting box 25. These reflective surfaces penetrate the slope side of the segment type display unit 40, and a display plate 30 is installed at a position where the reflective surface penetrates.

In the display panel 30, a plurality of segments 32d, 34d, 36, 34h, and 32h are formed at positions where the respective cavities penetrate. Accordingly, the light emitted from each of the white LEDs 22a, 22b, 22c, 22d, and 22e passes through the segments 32d, 34d, 36, 34h, and 32h formed on the display board 30, and the segment type display unit 40 (display unit). ) And projected onto the combiner 50 (FIG. 1) as projection light 45 (FIG. 1).

In the display panel 30, a plurality of segments 32d, 34d, 36, 34h, and 32h are formed at positions where the respective cavities penetrate. Accordingly, the light emitted from each of the white LEDs 22a, 22b, 22c, 22d, and 22e passes through the segments 32d, 34d, 36, 34h, and 32h formed on the display board 30, and the segment type display unit 40 (display unit). ) And projected onto the combiner 50 (FIG. 1) as projection light 45 (FIG. 1).

  Note that the segments 32a, 32b, 32c, 32e, 32f, 32g, 34a, 34b, 34c, 34e, 34f, and 34g (FIG. 2) not shown in FIG. The light emitted from the white LED mounted at the position corresponding to each segment on 20 is passed and projected onto the combiner 50 (FIG. 1) as projection light 45 (FIG. 1).

  The operation of the vehicle head-up display device 100 shown in FIG. 1 will be described. The projection light 45 projected from the segment type display unit 40 (display unit) is regularly reflected toward the driver 80 at the reflection point R on the combiner 50 (reflection member).

At this time, the projection light 45 emitted from each segment on the display board 30 (for example, the first display segment 36 in FIG. 1) is on a straight line L connecting the eyeball 82 of the driver 80 and the reflection point R on the combiner 50. Then, a virtual image 55 of each segment is formed. The virtual image 55 is formed at a position corresponding to the distance e between each segment and the reflection point R.

  In other words, the virtual image 55 is formed farther from the driver 80 as the distance e between each segment and the reflection point R is longer.

  Therefore, when the segment type display unit 40 (display unit) shown in FIG. 3 is installed in the layout of FIG. 1, the distance to the combiner 50 is within the segments 32d, 34d, 36, 34h, 32h of FIG. The virtual image 55 of the nearest segment 32d is formed in the foreground when viewed from the driver 80. The virtual image 55 of the segment 32h having the longest distance to the combiner 50 is formed farthest when viewed from the driver 80.

  Therefore, the virtual image 55 formed from the guidance route display segment 31 (display segment) shown in FIG. 2 forms an image farther away from the vehicle 10 in the guidance route. By superimposing such a perspective virtual image display on the actual driving environment, it is possible to further improve the intelligibility of the guidance route.

Hereinafter, a display example of the guidance route in the present embodiment will be described with reference to FIGS. 4 to 6, taking as an example a case of turning left at an intersection ahead of the vehicle 10 (FIG. 1).
[Description of guide route display example (1)]

  First, with reference to FIG. 4, a display example of the guidance route from the distance from the distance approaching the intersection to the point where the distance to the intersection is 500 m will be described.

  In the present embodiment, the upper limit value d0 for displaying the guidance route is set to 800 m, and the first predetermined distance d1 is set to 500 m. That is, when the vehicle travels toward the intersection, the guidance route is displayed when the vehicle reaches a position of 800 m to the intersection. Thereafter, while reaching a distance of 500 m to the intersection, the guidance route display shown in FIG. 4 is made.

  FIG. 4 is a state transition diagram illustrating an example of a virtual image representing a guidance route. Hereinafter, the virtual image display at each node and the transition condition between the nodes will be described.

  (Node N1) When the vehicle 10 (FIG. 1) on which the vehicle head-up display device 100 (FIG. 1) is mounted approaches the intersection and the distance d to the intersection is equal to or greater than the upper limit value d0 (800 m) (arc) In A2), a virtual image is not displayed. That is, it becomes a non-display state. When the distance d to the intersection falls below the upper limit value d0 (800 m) (arc A1), the transition is made to the node N2.

  (Node N2) The virtual image 55a is displayed by turning on the segments 32d, 34d, 36, 34b, and 32b of FIG. Specifically, the virtual image 32d ′ is displayed by lighting the segment 32d, the virtual image 34d ′ is displayed by lighting the segment 34d, and the virtual image 36 ′ is displayed by lighting the first display segment 36, The virtual image 34b ′ is displayed by lighting the segment 34b, and the virtual image 32b ′ is displayed by lighting the segment 32b. The state of the node N2 is continued while the distance d from the vehicle 10 (FIG. 1) to the intersection is not less than the first predetermined distance d1 (500 m) and less than the upper limit value d0 (800 m) (arc A3). Then, when the distance d to the intersection is less than the first predetermined distance d1 (500 m), the state transition diagram of FIG. 5 is transitioned through the arc A4.

As shown in FIG. 4, the driver of the vehicle 10 can be prepared to drive by displaying the guidance route at the front intersection.
[Description of guide route display example (2)]

  Next, a display example of the guidance route when traveling between 200 to 500 m from the intersection will be described with reference to FIG.

  In the present embodiment, the second predetermined distance d2 is set to 200 m. That is, when the vehicle travels toward the intersection, the guidance route display shown in FIG. 5 is performed after the distance to the intersection reaches the position of 500 m and until the distance to the intersection reaches the position of 200 m. The

  FIG. 5 is a state transition diagram illustrating an example of a virtual image representing a guidance route. Hereinafter, the virtual image display at each node and the transition condition between the nodes will be described.

  (Node N3) When the distance d from the vehicle 10 (FIG. 1) to the intersection is greater than or equal to the second predetermined distance d2 (200 m) and less than the first predetermined distance d1 (500 m), the segment 32d in FIG. By doing so, the virtual image 55b is displayed. Specifically, the virtual image 32d 'is displayed by lighting the segment 32d. The state of the node N3 is continued for a predetermined time Δt (for example, 300 msec) determined in advance (arc A5). When the predetermined time Δt has elapsed and the distance d from the vehicle 10 (FIG. 1) to the intersection is greater than or equal to the second predetermined distance d2 and less than the first predetermined distance d1, the node N4 is connected via the arc A7. Transition to. When the distance d from the vehicle 10 (FIG. 1) to the intersection is less than the second predetermined distance d2 (200 m), the state transition diagram of FIG. 6 is transitioned (arc A6).

  (Node N4) The virtual image 55c is displayed by turning on the segments 32d and 34d in FIG. The state of the node N4 is continued for a predetermined time Δt (arc A8). When the predetermined time Δt has elapsed and the distance d from the vehicle 10 (FIG. 1) to the intersection is greater than or equal to the second predetermined distance d2 and less than the first predetermined distance d1, the node N5 is connected via the arc A10. Transition to. When the distance d from the vehicle 10 (FIG. 1) to the intersection is less than the second predetermined distance d2, the state transition diagram of FIG. 6 is transitioned (arc A9).

  (Node N5) The virtual image 55d is displayed by lighting the segments 32d, 34d, and 36 in FIG. Specifically, the virtual image 32d 'is displayed by lighting the segment 32d, the virtual image 34d' is displayed by lighting the segment 34d, and the virtual image 36 'is displayed by lighting the first display segment 36. The state of the node N5 is continued for a predetermined time Δt (arc A11). When the predetermined time Δt has elapsed and the distance d from the vehicle 10 (FIG. 1) to the intersection is greater than or equal to the second predetermined distance d2 and less than the first predetermined distance d1, the node N6 is connected via the arc A13. Transition to. When the distance d from the vehicle 10 (FIG. 1) to the intersection is less than the second predetermined distance d2, the state transition diagram of FIG. 6 is transitioned (arc A12).

  (Node N6) The virtual image 55e is displayed by lighting the segments 32d, 34d, 36, and 34b of FIG. Specifically, the virtual image 32d ′ is displayed by lighting the segment 32d, the virtual image 34d ′ is displayed by lighting the segment 34d, and the virtual image 36 ′ is displayed by lighting the first display segment 36, The virtual image 34b ′ is displayed by lighting the segment 34b. The state of the node N6 is continued for a predetermined time Δt (arc A14). When the predetermined time Δt has elapsed and the distance d from the vehicle 10 (FIG. 1) to the intersection is greater than or equal to the second predetermined distance d2 and less than the first predetermined distance d1, the node N7 is connected via the arc A16. Transition to. When the distance d from the vehicle 10 (FIG. 1) to the intersection is less than the second predetermined distance d2, the state transition diagram of FIG. 6 is transitioned (arc A15).

  (Node N7) The virtual image 55a is displayed by lighting the segments 32d, 34d, 36, 34b, and 32b of FIG. Specifically, the virtual image 32d ′ is displayed by lighting the segment 32d, the virtual image 34d ′ is displayed by lighting the segment 34d, and the virtual image 36 ′ is displayed by lighting the first display segment 36, The virtual image 34b ′ is displayed by lighting the segment 34b, and the virtual image 32b ′ is displayed by lighting the segment 32b. The state of the node N7 is continued for a predetermined time Δt (arc A17). When the predetermined time Δt has elapsed and the distance d from the vehicle 10 (FIG. 1) to the intersection is greater than or equal to the second predetermined distance d2 and less than the first predetermined distance d1, the node N8 is connected via the arc A19. Transition to. When the distance d from the vehicle 10 (FIG. 1) to the intersection is less than the second predetermined distance d2, the state transition diagram of FIG. 6 is transitioned (arc A18).

  (Node N8) All segments in FIG. 2 are turned off. At this time, the virtual image is not displayed. The state of the node N8 is continued for a predetermined time Δt (arc A20). When the predetermined time Δt has elapsed and the distance d from the vehicle 10 (FIG. 1) to the intersection is greater than or equal to the second predetermined distance d2 and less than the first predetermined distance d1, the node N3 is connected via the arc A22. Transition to. When the distance d from the vehicle 10 (FIG. 1) to the intersection is less than the second predetermined distance d2, the state transition diagram of FIG. 6 is transitioned (arc A21).

As shown in FIG. 5, by turning on and off each segment, the arrows representing the guidance route are turned on in order at different times, so that the arrow representing the guidance route becomes the current position of the vehicle 10 (FIG. 1). It is displayed as if it is flowing in the direction of turning left after passing the intersection. By performing such a display, the driver 80 of the vehicle 10 can immediately recognize the traveling direction at the intersection, so that it is possible to provide a route guidance display excellent in instantaneous readability.
[Description of guide route display example (3)]

  Next, a display example of the guidance route when the distance to the intersection is within the second predetermined distance d2, that is, the distance to the intersection is within 200 m will be described with reference to FIG.

  FIG. 6 is a state transition diagram illustrating an example of a virtual image representing a guidance route. Hereinafter, the virtual image display at each node and the transition condition between the nodes will be described.

  (Node N9) The virtual image 55a is displayed by turning on the segments 32d, 34d, 36, 34b, and 32b of FIG. Specifically, the virtual image 32d ′ is displayed by lighting the segment 32d, the virtual image 34d ′ is displayed by lighting the segment 34d, and the virtual image 36 ′ is displayed by lighting the first display segment 36, The virtual image 34b ′ is displayed by lighting the segment 34b, and the virtual image 32b ′ is displayed by lighting the segment 32b. When the vehicle 10 (FIG. 1) has not passed the intersection, the state of the node N9 is continued for a predetermined time Δt (arc A23). When the predetermined time Δt has elapsed and the vehicle 10 has not passed the intersection, the vehicle transits to the node N10 via the arc A25. When the vehicle 10 passes through the intersection before the predetermined time Δt has elapsed, the vehicle 10 transits to the node N1 (arc A24).

  (Node N10) All segments in FIG. 2 are turned off. At this time, the virtual image is not displayed. When the vehicle 10 (FIG. 1) has not passed through the intersection, the state of the node N10 is continued for a predetermined time Δt (arc A27). When the predetermined time Δt has elapsed and the vehicle 10 has not passed the intersection, the transition is made to the node N9 via the arc A26. When the vehicle 10 passes through the intersection before the predetermined time Δt has elapsed, the vehicle 10 transits to the node N1 (arc A28).

  (Node N1) All segments in FIG. 2 are turned off. At this time, the virtual image is not displayed. This node N1 is the same node as the node N1 shown in FIG. Thereafter, the state transitions of FIGS. 4, 5 and 6 are sequentially repeated at the next guidance intersection.

  As shown in FIG. 6, the driver of the vehicle 10 can be alerted by blinking and displaying the guidance route at the nearest intersection ahead.

  Although the example of the guidance route display when turning left at the intersection has been described with reference to FIGS. 4 to 6, the guidance route is displayed by a lighting pattern of a plurality of segments. The guide route of the shape can be displayed.

  For example, FIG. 7A is a display example of a guidance route in a roundabout (circular intersection). FIG. 7A shows a guide route that, after entering the roundabout, travels in a clockwise direction along the circular path constituting the roundabout and escapes from a direction that forms an angle of about 45 ° to the right with respect to the approaching direction to the roundabout. Is displayed as a virtual image 55f.

  That is, by turning on only the white LED corresponding to the guide path, the virtual image 32d ′ of the segment 32d (FIG. 2), the virtual image 34d ′ of the segment 34d (FIG. 2), and the virtual image 34c ′ of the segment 34c (FIG. 2). A virtual image 34b ′ of the segment 34b (FIG. 2), a virtual image 34a ′ of the segment 34a (FIG. 2), a virtual image 34h ′ of the segment 34h (FIG. 2), a virtual image 34g ′ of the segment 34g (FIG. 2), A virtual image 32g ′ of the segment 32g (FIG. 2) is displayed, and a virtual image 55f is formed.

  FIG. 7B is a display example of the guidance route in the underpass. FIG. 7B is an example in which a guide route for turning left on an intersecting road after entering a three-dimensional intersection constituting an underpass is displayed as a virtual image 55g.

  That is, by turning on only the white LED corresponding to the guide path, the virtual image 32d ′ of the segment 32d (FIG. 2), the virtual image 34d ′ of the segment 34d (FIG. 2), and the virtual image 34c ′ of the segment 34c (FIG. 2). Then, the virtual image 34b ′ of the segment 34b (FIG. 2) and the virtual image 32b ′ of the segment 32b (FIG. 2) are displayed to form a virtual image 55g.

As described above, the vehicle head-up display device 100 according to the first embodiment reflects the projection light 45 projected from the display unit by the reflective member (combiner 50), and at the intersection in front of the driver 80. In the vehicle head-up display device 100 that displays a guide path as a virtual image 55, a display unit is provided on a surface of the lighting box 25 and a lighting box 25 having a plurality of hollow reflecting surfaces each having a light source. A guidance route display segment 31 installed so as to cover the exit portion of the reflecting surface, and the guidance route display segment 31 includes a first display segment 36 indicating the position of the intersection and a plurality of surroundings around the first display segment 36. The second display segment 34 and the plurality of second display segments 34 are further provided on the outer periphery, A plurality of third display segments 32 having different shapes from the display segment 36 and the second display segment 34, and at least one of the first display segment 36, the second display segment 34, and the third display segment 32. It is possible to display the guidance route by turning on the two display segments. Further, the distance calculation unit 76 that calculates the distance to the intersection and the plurality of display segments that display the guidance route are based on the distance. And a segment lighting state control unit 60 that performs display combining lighting and extinguishing. Then, the segment lighting state control unit 60 is added to the segment type display unit 40 (display unit) having a plurality of guidance route display segments 31 (display segments) representing the shape of an intersection ahead of the traveling direction of the vehicle 10, and a distance calculation unit. Based on the distance d to the intersection calculated in 76, the combination of lighting and extinguishing of the guidance route display segment 31 is changed, and a virtual image is displayed in front of the driver by the projection light 45 from the segment type display unit 40. Intuitive and easy-to-understand route guidance display can be performed.

  Moreover, according to the vehicle head-up display device 100 according to the first embodiment, the guidance route display and the indicator display indicating the distance to the intersection can be used together. Therefore, it is possible to reduce the size of the segment type display unit 40 (display unit) that displays the guidance route, and it is possible to provide a head-up display excellent in in-vehicle performance.

  According to the vehicle head-up display device 100 according to the first embodiment, the distance d to the intersection detected by the distance calculation unit 76 is less than the upper limit value d0 of the distance for displaying the guidance route, and When the distance is greater than one predetermined distance d1, the display segment representing the guide route is fully lit, and the distance d is the first predetermined distance d1 and the second predetermined distance smaller than the first predetermined distance d1. When the distance d is smaller than the second predetermined distance d2, the display segment representing the guidance route is sequentially lit in the direction passing through the intersection. Since the display segment representing the route is repeatedly turned on and off, the distance to the intersection and the course at the intersection are displayed intuitively and easily. Therefore, it is possible to provide a route guidance display excellent in instantaneous reading.

  Although the embodiments of the present invention have been described in detail with reference to the drawings, the embodiments are only examples of the present invention, and the present invention is not limited to the configurations of the embodiments. Needless to say, design changes and the like within a range not departing from the gist of the invention are included in the present invention.

  For example, although the vehicle head-up display device 100 has been described as an example in the first embodiment, the scope of application of the present invention is not limited to the head-up display. That is, a guidance route composed of a plurality of segments may be displayed on the liquid crystal monitor installed in the vehicle in the form shown in the first embodiment. Moreover, you may display a guidance path | route not only on a liquid crystal monitor but on the display apparatus comprised by the some segment.

  Further, the values of the upper limit value d0, the first predetermined distance d1, and the second predetermined distance d2 described in the first embodiment are not limited to the values used in the first embodiment, and are appropriately designed values. Use it.

10 .... Vehicle 20 ... Lighting mounting board 25 ... Lighting box 30 ... Display board 31 ... Guidance path display segment (display segment)
32 ... 3rd display segment 34 ... 2nd display segment 36 ... 1st display segment 40 ... ... Segment type display part (display part)
45 ... Projection light

Claims (4)

A vehicle head-up display device that reflects projection light projected from a display unit with a reflective member and displays a guidance route at an intersection as a virtual image in front of a driver,
The display unit includes a lighting box having a plurality of hollow reflecting surfaces each having a light source disposed therein, and a guide path display segment installed so as to cover an emission part of the reflecting surface provided on the surface of the lighting box. And
The guidance route display segment is:
A first display segment indicating the location of the intersection;
A plurality of second display segments surrounding the first display segment;
A plurality of third display segments provided on a further outer periphery of the plurality of second display segments and having a shape different from the first display segment and the second display segment;
By displaying at least two display segments among the first display segment, the second display segment, and the third display segment, it is possible to display the guidance route.
Furthermore, a distance calculation unit that calculates the distance to the intersection;
To the plurality of display segments for displaying the guide route, possess a lighting based on the distance, and the segment lighting state control unit for displaying a combination of a turn off, and
The segment lighting state control unit represents the guidance route when the distance detected by the distance calculation unit is less than the upper limit value of the distance for performing the guidance route display and is larger than the first predetermined distance. Perform the operation to light the display segment with the first lighting pattern,
When the distance is smaller than the first predetermined distance, the display segment representing the guide route is turned on with a second lighting pattern different from the first lighting pattern,
One of the first lighting pattern and the second lighting pattern includes a pattern in which a display segment representing the guidance route is repeatedly lit in a direction passing through the intersection. Vehicle display device. The vehicle display device according to claim 1,
The other of the first lighting pattern and the second lighting pattern includes an operation of fully lighting the display segment representing the guidance route, or an operation of repeating all lighting and full extinction of the display segment representing the guidance route. A display device for a vehicle. The vehicle display device according to claim 1,
When the distance is between the first predetermined distance and a second predetermined distance smaller than the first predetermined distance, a display segment representing the guide route is different from the first lighting pattern. Perform the operation of lighting with the second lighting pattern,
When the distance is smaller than the second predetermined distance, the display segment representing the guidance route is lit in a third lighting pattern different from the first lighting pattern and the second lighting pattern,
Any one of the first to third lighting patterns includes at least one of repeatedly performing an operation of sequentially lighting a display segment representing the guidance route in a direction passing through the intersection. Vehicle display device. A vehicle head-up display device that reflects projection light projected from a display unit with a reflective member and displays a guidance route at an intersection as a virtual image in front of a driver,
The display unit includes a lighting box having a plurality of hollow reflecting surfaces each having a light source disposed therein, and a guide path display segment installed so as to cover an emission part of the reflecting surface provided on the surface of the lighting box. And
The guidance route display segment is:
A first display segment indicating the location of the intersection;
A plurality of second display segments surrounding the first display segment;
A plurality of third display segments provided on a further outer periphery of the plurality of second display segments and having a shape different from the first display segment and the second display segment;
By displaying at least two display segments among the first display segment, the second display segment, and the third display segment, it is possible to display the guidance route.
Furthermore, a distance calculation unit that calculates the distance to the intersection;
A segment lighting state control unit that performs display based on the distance and a combination of lighting and extinguishing for the plurality of display segments that perform display of the guidance route,
The segment lighting state control unit represents the guidance route when the distance detected by the distance calculation unit is less than the upper limit value of the distance for performing the guidance route display and is larger than the first predetermined distance. Performs an operation to turn on all display segments,
When the distance is between the first predetermined distance and a second predetermined distance smaller than the first predetermined distance, the display segment representing the guidance route is directed in a direction passing through the intersection. Repeat the operation to turn on
When the distance is smaller than the second predetermined distance, the vehicle display device performs an operation of repeatedly turning on and off all the display segments representing the guidance route.