Display system

Abstract

To provide a display system which can improve visibility to objects in a lateral direction and an oblique direction of a mobile body, and can suppress an influence on arrangement of other member.SOLUTION: A display system, which is mounted on a mobile body and displays information on a display object outside the mobile body, has a first display part and a second display part arranged on each of the side of a first end and the side of a second end out of at least one both ends of both ends on a front side and both ends on a rear side of the mobile body, wherein the first display part and the second display part are arranged in a state in which each of the display surfaces is inclined to at least one surface.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a display system mounted on a moving body.

Background Art

[0002] Conventionally, a display unit for displaying information to the outside of a moving body has been arranged on the front or rear front of the moving body. Patent Document 1 discloses a vehicle communication system in which displays as display units are arranged on the front and rear fronts of a vehicle.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the vehicle communication system of Patent Document 1, regarding the content of the display, objects in the front or rear front direction of the vehicle are visible, but it is difficult to view objects in the lateral or diagonal direction of the vehicle. In addition, since the display exclusively occupies the front or rear front of the vehicle, it will affect the arrangement of components such as the license plate and emblem in the front, and the trunk lid in the rear.

[0005] An object of the present invention is to provide a display system capable of improving visibility to objects in the lateral or diagonal direction of a moving body and suppressing the influence on the arrangement of other members.

Means for Solving the Problems

[0006] A display system according to one aspect of the present invention is a display system mounted on a moving body and configured to display information to a display target outside the moving body. The display system includes a first display unit and a second display unit respectively disposed on a first end side and a second end side of at least one of both ends of the front and rear of the moving body. The first display unit and the second display unit are disposed such that their respective display surfaces are inclined with respect to at least one surface.

Advantages of the Invention

[0007] According to the present invention, it is possible to improve the visibility of a target in the lateral direction or the diagonal direction of the moving body, and it is possible to provide a display system capable of suppressing the influence on the arrangement of other members.

Brief Description of the Drawings

[0008]

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Mode for Carrying Out the Invention

[0009] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In each figure, the same members are denoted by the same reference numerals, and duplicate explanations are omitted.

[0010] FIG. 1 is an external view of a vehicle 1 which is an example of a moving body equipped with the display system according to an embodiment of the present invention and capable of moving while holding the display system. The vehicle 1 is driven by a driver 50. In the following description, the forward direction of the vehicle 1 is the +Z direction, the rearward direction is the -Z direction, the leftward direction is the +X direction, the rightward direction is the -X direction, the upward direction is the +Y direction, and the downward direction is the -Y direction.

[0011] On the front right corner of the vehicle 1, a front right turn indicator 2A and a right headlight 3A are arranged. On the front left corner of the vehicle 1, a front left turn indicator 2B and a left headlight 3B are arranged. The front right turn indicator 2A and the front left turn indicator 2B are turn indicators that indicate the moving direction of the vehicle 1 to the surroundings by their blinking. The right headlight 3A and the left headlight 3B are headlights that illuminate the front of the vehicle 1. In the center of the front of the vehicle 1, a bumper 4 for cushioning the impact and vibration during a collision of the vehicle 1, and a front license plate 5A used for identifying the vehicle 1 are arranged. Above the bumper 4 and the front license plate 5A, a front emblem 6A representing the vehicle type and manufacturing company of the vehicle 1 is arranged.

[0012] The vehicle 1 has a display unit for displaying the content in order to convey the actions intended by the driver 50 to the surroundings. The display units are arranged at two locations in front of the vehicle 1 and two locations behind it. As the front display units, a front right display unit 10A is arranged on the right side of the front corner of the vehicle 1, and a front left display unit 10B is arranged on the left side of the front corner. The front right display unit 10A is arranged below the front right direction indicator 2A and the right front headlight 3A. The front left display unit 10B is arranged below the front left direction indicator 2B and the left front headlight 3B.

[0013] FIG. 2 is a view of the front part of the vehicle 1 seen from the upper surface side. The front right display unit 10A is arranged at the front right corner of the vehicle 1 in a state where the display surface 10As is inclined by an angle (hereinafter referred to as the front display surface angle) θa with respect to the front surface Sf of the vehicle 1. The front left display unit 10B is arranged at the front left corner of the vehicle 1 in a state where the display surface 10Bs is inclined by the front display surface angle θa with respect to the front surface Sf. The front display surface angle θa may be an angle from 20 degrees to 55 degrees, preferably an angle from 25 degrees to 50 degrees, and more preferably an angle from 30 degrees to 45 degrees. In the present embodiment, the front surface Sf is a surface formed by the bumper 4.

[0014] Here, in the region aR in front of the display surface 10As, the display surface 10As can be recognized, but in the region NaR behind the display surface 10As, the display surface 10As cannot be recognized. Also, in the region aL in front of the display surface 10Bs, the display surface 10Bs can be recognized, but in the region NaL behind the display surface 10Bs, the display surface 10Bs cannot be recognized. Therefore, in the angular region (second region) θaC, the display surfaces 10As and 10Bs can be recognized. In the angular region (first region) θaL, the display surface 10Bs can be recognized, but the display surface 10As cannot be recognized. In the angular region (first region) θaR, the display surface 10As can be recognized, but the display surface 10Bs cannot be recognized.

[0015] With the above configuration, in the present embodiment, it is possible to arrange the front right display unit 10A and the front left display unit 10B while avoiding the bumper 4, the front license plate 5A, and the front emblem 6A. Further, since the front right display unit 10A and the front left display unit 10B are arranged behind the bumper 4, the impact on the front right display unit 10A and the front left display unit 10B when the vehicle 1 collides can be reduced.

[0016] Figure 3 is a diagram showing the configuration of the rear part of the vehicle 1. At the right rear corner of the vehicle 1, a rear right direction indicator 2C and a right rear light 7A are arranged. At the left rear corner of the vehicle 1, a rear left direction indicator 2D and a left rear light 7B are arranged. The rear right direction indicator 2C and the rear left direction indicator 2D are direction indicators that indicate the moving direction of the vehicle 1 to the surroundings by their blinking. The right rear light 7A and the left rear light 7B are tail lights indicating the presence of a following vehicle of the vehicle 1, brake lights notifying deceleration, and the like. At the center of the rear of the vehicle 1, a rear door 8 leading to a luggage compartment (not shown) is arranged. At the center of the rear door 8, a rear emblem 6B representing the vehicle type and manufacturing company of the vehicle 1 and a rear license plate 5B used for identification of the vehicle 1 are arranged.

[0017] As described above, two display units are arranged at the rear of the vehicle 1. As the rear display units, a rear right display unit 10C is arranged on the right side of the rear corner of the vehicle 1, and a rear left display unit 10D is arranged on the left side of the rear corner. The rear right display unit 10C is arranged below the rear right direction indicator 2C and the right rear light 7A. The rear left display unit 10D is arranged below the rear left direction indicator 2D and the left rear light 7B.

[0018] FIG. 4 is a view of the rear part of the vehicle 1 as seen from the upper surface side. The rear right display unit 10C is disposed at the rear right corner of the vehicle 1 in a state where the display surface 10Cs is inclined by an angle (hereinafter referred to as the rear display surface angle) θb with respect to the rear surface Sb of the vehicle 1. The rear left display unit 10D is disposed at the rear left corner of the vehicle 1 in a state where the display surface 10Ds is inclined by the rear display surface angle θb with respect to the rear surface Sb. The rear display surface angle θb may be an angle from 20 degrees to 55 degrees, preferably an angle from 25 degrees to 50 degrees, and more preferably an angle from 30 degrees to 45 degrees.

[0019] Here, in the region bR behind the display surface 10Cs, the display surface 10Cs can be recognized, but in the region NbR in front of the display surface 10Cs, the display surface 10Cs cannot be recognized. Also, in the region bL behind the display surface 10Ds, the display surface 10Ds can be recognized, but in the region NbL in front of the display surface 10Ds, the display surface 10Ds cannot be recognized. Therefore, in the angular region (second region) θbC, the display surfaces 10Cs and 10Ds can be recognized. In the angular region (first region) θbL, the display surface 10Ds can be recognized, but the display surface 10Cs cannot be recognized. In the angular region (first region) θbR, the display surface 10Cs can be recognized, but the display surface 10Ds cannot be recognized.

[0020] With the above configuration, in the present embodiment, it is possible to arrange the rear right display unit 10C and the rear left display unit 10D while avoiding the rear door 8, the rear number plate 5B, and the rear emblem 6B.

[0021] Hereinafter, the interior of vehicle 1 will be described. FIG. 5 is a diagram schematically showing the interior of vehicle 1, showing the state where the driver 50 is driving. In the vehicle interior, a driver imaging device 70 is provided as an imaging device for detecting the line of sight of the driver 50. Further, a front imaging device 71 is provided as an imaging device for recognizing the situation in front of vehicle 1 and measuring the distance to an object. The driver 50 operates the vehicle 1 using a steering wheel 80 for determining the traveling direction of the vehicle 1 and an accelerator and a brake (not shown) for operating the acceleration and deceleration of the vehicle 1.

[0022] FIG. 6 is a diagram schematically showing the periphery of the steering wheel 80. Around the steering wheel 80, a direction indicator operation member 81 that the driver 50 operates when blinking the aforementioned direction indicator is provided. By blinking the direction indicator according to the operation direction of the direction indicator operation member 81, the moving direction of the vehicle 1 can be indicated to the surroundings. For example, by operating the direction indicator operation member 81 in the A direction, the front right direction indicator 2A and the rear right direction indicator 2C blink, indicating to the surroundings the intention of the vehicle 1 to turn right (change the driving route to the right side) or move in the right direction (change lanes to the right side). Also, by operating the direction indicator operation member 81 in the B direction, the front left direction indicator 2B and the rear left direction indicator 2D blink, indicating to the surroundings the intention of the vehicle 1 to turn left (change the driving route to the left side) or move in the left direction (change lanes to the left side).

[0023] Further, around the steering wheel 80, a plurality of display buttons 82 that are operated when displaying information on the aforementioned display unit are provided. Each of the plurality of display buttons 82 is assigned various display contents to be displayed on the display unit. When the driver 50 wants to convey a predetermined intention to the outside of the vehicle 1, the driver 50 can display the intention on the display unit by operating the display button 82 to which the content to be conveyed is assigned.

[0024] Note that in this embodiment, the display units are provided at both the front and rear ends, but they may be provided at both ends of either the front or the rear.

[0025] The configuration of the display system of each embodiment will be described below. The display system has the display unit described above, and displays information for a display target to which the driver 50 outside the moving body wishes to convey the display.

Example

[0026] FIG. 7 is a block diagram of the system control unit 100 of this embodiment. The system control unit 100 includes a display button input detection unit 101, a position information acquisition unit (position acquisition unit) 110, a display control unit (first control unit, second control unit) 105, and a storage unit 106.

[0027] The display button input detection unit 101 detects an operation (input) on any of the plurality of display buttons 82 of the driver 50.

[0028] The position information acquisition unit 110 includes a display target specifying unit (specifying unit) 111 and a display target angle determination unit 104, and acquires the position of the display target to which the driver 50 wishes to convey the display. The display target specifying unit 111 includes a line-of-sight recognition unit (line-of-sight acquisition unit) 102 and an image recognition unit 103. The line-of-sight recognition unit 102 recognizes (acquires) the line-of-sight direction of the driver 50 based on an image captured by the driver imaging device 70 directed at the driver 50. The image recognition unit 103 recognizes (acquires) an image of the front of the vehicle 1 by the front imaging device 71. The display target specifying unit 111 specifies the target in the line-of-sight direction of the driver 50 from the line-of-sight direction of the driver 50 recognized by the line-of-sight recognition unit 102 and the image of the front of the vehicle 1 recognized by the image recognition unit 103. In this embodiment, since the line of sight of the driver 50 at the time of input detection by the display button input detection unit 101 is recognized, the display target specifying unit 111 specifies the display target to which the driver 50 wishes to convey the display. The display target angle determination unit 104 determines in which of the above-described angle regions the display target specified by the display target specifying unit 111 exists with respect to the vehicle 1.

[0029] The memory unit 106 stores the display content assigned to each of the plurality of display buttons 82. In this embodiment, two display methods can be used: a single-screen display method for displaying the display content assigned to the display button 82 using one display unit, and a multi-screen display method for displaying the display content using two display units. That is, for one display button 82, two types of display methods representing the same content are stored in the memory unit 106.

[0030] When displaying the display content assigned to the display button 82, the display control unit 105 selects which of the single-screen display method and the multi-screen display method to use, and controls which display unit to use for the display.

[0031] Here, the single-screen display method and the multi-screen display method will be described. FIG. 8 is a diagram showing an example of the display content assigned to the display button 82, and shows the display content for prompting a pedestrian to cross. FIG. 8(a) shows the display content displayed on the front left display unit 10B using the single-screen display method. FIG. 8(b) shows the display content displayed on the front right display unit 10A and the front left display unit 10B using the multi-screen display method. In the multi-screen display method of displaying the display content using two display units, since the area of the display screen increases compared to the single-screen display method of displaying the display content using one display unit, it is possible to enlarge the characters to be displayed for easy viewing.

[0032] Hereinafter, with reference to FIG. 9, the operation of the system control unit 100 until the display content intended by the driver 50 is displayed will be described. FIG. 9 is a flowchart showing the operation of the system control unit 100 when the display content intended by the driver 50 is displayed.

[0033] In step S101, the display button input detection unit 101 detects an operation on the display button 82 by the driver 50.

[0034] In step S102, the gaze recognition unit 102 recognizes (acquires) the gaze direction of the driver 50 based on the image captured by the driver imaging device 70.

[0035] In step S103, the image recognition unit 103 uses the image in front of the vehicle 1 from the front imaging device 71 and the line-of-sight direction of the driver 50 recognized in step S102 to identify the display target that the driver 50 wants to recognize the display of.

[0036] In step S104, the display target angle determination unit 104 determines whether the display target exists in the angular region θaC of the vehicle 1. When it is determined by the display target angle determination unit 104 that the display target exists in the angular region θaC of the vehicle 1, the display control unit 105 executes the process of step S105. When it is determined by the display target angle determination unit 104 that the display target does not exist in the angular region θaC of the vehicle 1, the display control unit 105 executes the process of step S106.

[0037] In step S105, the display control unit 105 displays the display content assigned to the display button 82 stored in the storage unit 106 on the front right display unit 10A and the front left display unit 10B (performs the second control using the multi-screen display method).

[0038] In step S106, the display target angle determination unit 104 determines whether the display target exists in the angular region θaR of the vehicle 1. When it is determined by the display target angle determination unit 104 that the display target exists in the angular region θaR of the vehicle 1, the display control unit 105 executes the process of step S107. When it is determined by the display target angle determination unit 104 that the display target does not exist in the angular region θaR of the vehicle 1, that is, when it is determined that the display target exists in the angular region θaL, the display control unit 105 executes the process of step S108.

[0039] In step S107, the display control unit 105 displays the display content assigned to the display button 82 stored in the storage unit 106 on the front right display unit 10A (performs the first control using the single-screen display method).

[0040] In step S108, the display control unit 105 displays the display content assigned to the display button 82 stored in the storage unit 106 on the front left display unit 10B (performs the first control using the single screen display method).

[0041] Hereinafter, the specific display method of this embodiment will be described. FIG. 10 is a diagram showing an example of the surrounding situation of the vehicle 1. The pedestrian 51 is waiting for an opportunity to cross the crosswalk on the left sidewalk, and the driver 50 is trying to prompt the pedestrian 51 to cross using the display unit of the vehicle 1. The distance L between the vehicle 1 and the pedestrian 51 is assumed to be relatively short. In the situation of FIG. 10, when the driver 50 operates the display button 82 to which the display for prompting crossing is assigned in order to perform the display for prompting the pedestrian 51 to cross, the pedestrian 51 is specified from the line of sight of the driver 50, and the angular region of the pedestrian 51 with respect to the vehicle 1 is recognized. When the distance L between the vehicle 1 and the pedestrian 51 located on the left side of the vehicle 1 is short as shown in FIG. 10, the pedestrian 51 is present in the angular region θaL. Therefore, the display control unit 105 displays the display content for prompting the pedestrian assigned to the display button 82 to cross on the front left display unit 10B.

[0042] FIG. 11 is a diagram schematically showing the display content displayed on the front left display unit 10B as viewed from the pedestrian 51 in FIG. 10. Since the display is performed using the single screen display method, the size of the characters is smaller compared to the case where the display is performed using the multi-screen display method. However, since the distance L between the vehicle 1 and the pedestrian 51 is short (the pedestrian 51 is close to the vehicle 1), the pedestrian 51 can recognize the display content. Further, since the front left display unit 10B is arranged in a state where the display surface 10Bs is inclined by the front display surface angle θa with respect to the front surface Sf, the visibility is good for the pedestrian 51 located on the left side of the vehicle 1.

[0043] FIG. 12 is a diagram showing another example of the surrounding situation of the vehicle, and shows a situation where the distance L between the vehicle 1 and the pedestrian 51 is longer (the pedestrian 51 is away from the vehicle 1) than in FIG. 10. In the situation of FIG. 12, when the driver 50 operates the display button 82 to which the indication to urge crossing is assigned in order to perform an indication to urge the pedestrian 51 to cross, the pedestrian 51 is specified from the line of sight of the driver 50, and the angular region of the pedestrian 51 with respect to the vehicle 1 is recognized. When the distance L between the vehicle 1 and the pedestrian 51 is long as in FIG. 12, the pedestrian 51 is present in the angular region θaC. Therefore, the display control unit 105 displays the indication content to urge the pedestrian assigned to the display button 82 to cross on the front right display unit 10A and the front left display unit 10B.

[0044] FIG. 13 is a diagram schematically showing the display content displayed on the front right display unit 10A and the front left display unit 10B as seen from the pedestrian 51 in FIG. 12. Since the display is performed using the multi-screen display method, the character size is larger compared to the case where the display is performed using the single-screen display method, and even when the distance L between the vehicle 1 and the pedestrian 51 is long, the pedestrian 51 can recognize the display content.

[0045] In this embodiment, the display content intended by the driver 50 is displayed when the driver 50 operates the display button 82, but the present invention is not limited to this. For example, the display content intended by the driver 50 may be displayed according to voice recognition, gesture, or the like.

Embodiment

[0046] In this embodiment, only the configuration different from that of Embodiment 1 will be described, and the description of the common configuration will be omitted.

[0047] FIG. 14 is a block diagram of the system control unit 100 of this embodiment. The system control unit 100 of this embodiment includes a turn signal operation member detector 201, a vehicle speed recognition unit 203, and a vehicle motion estimation unit 204 in addition to the configuration of the first embodiment. The turn signal operation member detector 201 detects an operation (input) and an operation direction on the turn signal operation member 81 by the driver 50. The vehicle speed recognition unit 203 recognizes (acquires) the speed of the vehicle 1 based on information from an acceleration detector 202 provided in the vehicle 1 and capable of detecting the speed state of the vehicle 1. The vehicle motion estimation unit 204 estimates the motion that the vehicle 1 is about to perform using information from the turn signal operation member detector 201 and the vehicle speed recognition unit 203. In the storage unit 106, a combination of display contents associated with vehicle motions and a display unit for performing the display is stored. The display control unit 105 selects the display content and the display unit based on the motion estimated by the vehicle motion estimation unit 204, and performs a display on the display unit.

[0048] Hereinafter, with reference to FIG. 15, the operation of the system control unit 100 until the display content associated with the vehicle motion is displayed will be described. FIG. 15 is a flowchart showing the operation of the system control unit 100 when the display content associated with the vehicle motion is displayed.

[0049] In step S201, the turn signal operation member detector 201 detects an operation and an operation direction on the turn signal operation member 81 by the driver 50.

[0050] In step S202, the vehicle speed recognition unit 203 determines whether the speed of the vehicle 1 is greater than a threshold value. When the vehicle speed recognition unit 203 determines that the speed of the vehicle 1 is greater than the threshold value, that is, when it is determined that the vehicle 1 is about to perform a lane change, the vehicle motion estimation unit 204 executes the process of step S203. When the vehicle speed recognition unit 203 determines that the speed of the vehicle 1 is less than the threshold value, that is, when it is determined that the vehicle 1 is about to perform a right turn or a left turn, the vehicle motion estimation unit 204 executes the process of step S204. Note that when the speed of the vehicle 1 is equal to the threshold value, which process to execute can be arbitrarily set.

[0051] In step S203, the vehicle motion estimation unit 204 determines whether the operation direction of the turn signal operation member 81 detected in step S201 corresponds to the right direction. When it is determined by the vehicle motion estimation unit 204 that the operation direction of the turn signal operation member 81 corresponds to the right direction, the display control unit 105 executes the process of step S205. When it is determined by the vehicle motion estimation unit 204 that the operation direction of the turn signal operation member 81 does not correspond to the right direction, that is, corresponds to the left direction, the display control unit 105 executes the process of step S206.

[0052] In step S204, the vehicle motion estimation unit 204 determines whether the operation direction of the turn signal operation member 81 detected in step S201 corresponds to the right direction. When it is determined by the vehicle motion estimation unit 204 that the operation direction of the turn signal operation member 81 corresponds to the right direction, the display control unit 105 executes the process of step S207. When it is determined by the vehicle motion estimation unit 204 that the operation direction of the turn signal operation member 81 does not correspond to the right direction, that is, corresponds to the left direction, the display control unit 105 executes the process of step S208.

[0053] In step S205, the display control unit 105 displays the display content indicating the intention to change lanes to the right on the right display units in the front and rear of the vehicle 1, that is, the front right display unit 10A and the rear right display unit 10C.

[0054] In step S206, the display control unit 105 displays the display content indicating the intention to change lanes to the left on the left display units in the front and rear of the vehicle 1, that is, the front left display unit 10B and the rear left display unit 10D.

[0055] In step S207, the display control unit 105 displays the display content indicating the intention to turn right on the left and right display units in the front of the vehicle 1, that is, the front right display unit 10A and the front left display unit 10B.

[0056] In step S208, the display control unit 105 displays the display content indicating an intention to turn left on the display unit on the right side in front of the vehicle 1, that is, the front right display unit 10A.

[0057] Hereinafter, a specific display method of this embodiment will be described. FIG. 16 is a schematic diagram showing a situation where the vehicle 1 intends to change lanes. The vehicle 1 is about to change lanes to the right lane, and the driver 50 is operating the direction indicator operation member 81 in the direction corresponding to the right side. The direction indicators are schematically shown as rectangular displays in front of and behind the vehicle 1.

[0058] In the situation of FIG. 16, the front right direction indicator 2A and the rear right direction indicator 2C are blinking, indicating an intention to change lanes to the right side to the surroundings. Further, in the vehicle 1 of this embodiment, the display content indicating an intention to change lanes to the right side is displayed on the front right display unit 10A and the rear right display unit 10C. In FIG. 16, as an example, a character display of "Want to change lanes" is performed. Therefore, it is possible to more specifically show the intention of the vehicle 1 to the vehicles 52 and 53 traveling in the right lane.

[0059] In addition, the front right display unit 10A is arranged in a state where the display surface 10As is inclined by a front display surface angle θa with respect to the front surface Sf, and the rear right display unit 10C is arranged in a state where the display surface 10Cs is inclined by a front display surface angle θb with respect to the rear surface Sb. Therefore, the visibility for the vehicle 52 traveling in front of the right lane and the vehicle 53 traveling behind the right lane is also good.

[0060] Furthermore, since the front left display unit 10B and the rear left display unit 10D do not perform displays, it is not necessary to prompt the vehicle 54 traveling in the left lane to pay attention. Therefore, the influence on the driving of the driver traveling in the left lane can be suppressed. The same applies to changing lanes to the left lane.

[0061] FIG. 17 is a diagram schematically showing a situation where the vehicle 1 makes a right or left turn while driving on the left side of the road. The direction indicator lights are schematically shown as rectangular displays in front of and behind the vehicle 1.

[0062] FIG. 17(a) shows a situation when making a right turn, that is, a situation where the driver 50 operates the direction indicator operating member 81 in a direction corresponding to the right side. At this time, the front right direction indicator light 2A and the rear right direction indicator light 2C flash, indicating the intention to make a right turn to the surroundings. When making a right turn while driving on the left side of the road, it is necessary to pay attention to the vehicles in two lanes, namely the vehicle 55 traveling in the front lane and the vehicle 56 traveling in the rear lane. In such a situation, the vehicle 55 traveling in the front lane can easily recognize the flashing of the front right direction indicator light 2A, but it is difficult for the vehicle 56 traveling in the rear lane to recognize it. In this embodiment, as described above, the display content indicating that the vehicle 1 intends to make a right turn is displayed on the front right display portion 10A and the front left display portion 10B. In FIG. 17(a), as an example, the character notation "I want to turn right" is made. Therefore, it is possible to make the vehicle 56 recognize that the vehicle 1 has the intention to make a right turn. Further, as a display for the vehicle 60 traveling behind the vehicle 1, using the multi-screen display method, the content indicating that it is waiting for a right turn is displayed on the rear right display portion 10C and the rear left display portion 10D. In FIG. 17(a), as an example, the character notations "Sorry" and "Waiting for a right turn" are made.

[0063] Figure 17(b) shows the situation during a left turn, that is, the situation where the driver 50 operates the direction indicator operating member 81 in the direction corresponding to the left side. For this reason, the front left direction indicator 2B and the rear left direction indicator 2D flash, indicating the intention to turn left to the surroundings. When turning left on the left side of the road, it is necessary to pay attention to the vehicle 57 traveling in the lane in front. In such a situation, it is difficult for the vehicle 57 traveling in the lane in front to recognize the flashing of the front left direction indicator 2B. In this embodiment, as described above, the front right display unit 10A displays the content indicating that the vehicle 1 intends to turn left. In Figure 17(b), as an example, the character notation "I want to turn left" is made. Therefore, the vehicle 57 can also recognize that the vehicle 1 has the intention to turn left. Furthermore, the front left display unit 10B does not display for the vehicle 58 that is less affected by the left turn of the vehicle 1. For this reason, there is no need to prompt the vehicle 58 to pay attention. That is, the influence on the driving of the driver of the vehicle 58 traveling in the lane on the inner side can be suppressed. Furthermore, as the display for the vehicle 61 traveling behind the vehicle 1, the content indicating that it is waiting for a right turn is displayed on the rear right display unit 10C and the rear left display unit 10D using the multi-screen display method. In Figure 17(b), as an example, the character notations "Sorry" and "Waiting for a left turn" are made.

[0064] In addition, in this embodiment, the front right display unit 10A and the front left display unit 10B are arranged in a state inclined by the front display angle θa with respect to the front surface Sf. Therefore, similar to when changing lanes, the front right display unit 10A has good visibility for the vehicles 55, 57 traveling in the lane in front towards the vehicle 1 and the vehicles 56, 58 traveling in the lane on the inner side towards the vehicle 1.

[0065] Also, in each embodiment, the front display target has been described, but the same configuration can obtain the same effect for the rear display target.

[0066] In each embodiment, the angular regions θaC, θaR, and θaL may be set in consideration of the visibility of the display surface. For example, when the display on the display surface is performed using a so-called liquid crystal screen, the angular regions may be set in consideration of the viewing angle of the liquid crystal screen. When other display methods are used, the viewing angle in the used display method may be considered. Also, the appearance depending on the angle may be considered. In this embodiment, the angular regions θaC, θaR, and θaL are set using the extension lines of the display surfaces of the respective display units, but the visibility deteriorates in the vicinity of the extension lines of the display surfaces. Therefore, they may be set in consideration of regions with good visibility.

[0067] In each embodiment, character notations in the display unit are also given as an example, but it may be only notations such as pictures and icons that can be intuitively judged without using character notations.

[0068] In each embodiment, in the multi-screen display method, the visibility is improved by enlarging the characters with respect to the single-screen display method, but the amount of information may be increased by increasing the display content such as characters and pictures.

[0069] In each embodiment, the display content intended by the driver 50 and the display content based on the operation on the direction indicator operation member 81 of the driver 50 are displayed, but the present invention can also be applied to vehicles without a driver, such as fully autonomous driving vehicles. When it is determined that the autonomous vehicle displays instead of the driver, the same effects can be obtained by the above-described means.

[0070] The disclosure of this embodiment includes the following configurations. (Configuration 1) A display system mounted on a moving body and displaying information on a display target outside the moving body, having a first display unit and a second display unit respectively arranged on the side of the first end and the side of the second end of at least one of both ends in front of and behind the moving body, wherein the first display unit and the second display unit are arranged in a state where their respective display surfaces are inclined with respect to the at least one surface, characterized display system. (Configuration 2) The angle of inclination with respect to at least one of the surfaces of the display surface is an angle ranging from 20 degrees to 60 degrees, and the display system according to Configuration 1 is characterized in that. (Configuration 3) A position acquisition unit that acquires the position of the display target, The display system according to Configuration 1 or 2 further includes a first control unit that performs either a first control for displaying the information on one of the first display unit and the second display unit or a second control for displaying the information on the first display unit and the second display unit according to the position of the display target. (Configuration 4) A line-of-sight acquisition unit that acquires the line-of-sight direction of the driver of the moving body, The display system according to Configuration 3 further includes a specifying unit that specifies the display target using the line-of-sight direction. (Configuration 5) When the display target is located in a first region where the display surfaces of either the first display unit or the second display unit can be recognized, the first control unit performs the first control, and when the display target is located in a second region where the display surfaces of the first display unit and the second display unit can be recognized, the first control unit performs the second control. The display system according to Configuration 3 or 4 is characterized in that. (Configuration 6) An estimation unit that estimates the operation of the moving body, The display system according to any one of Configurations 1 to 5 further includes a second control unit that controls the content of the information and the display unit that displays the information according to the operation of the moving body. (Configuration 7) When the speed of the moving body is greater than a threshold value and the direction indicator provided on the side of the first end of the moving body is blinking, the second control unit displays the information indicating the intention to change lanes on the first display unit, and when the speed is greater than the threshold value and the direction indicator provided on the side of the second end of the moving body is blinking, the second control unit displays the information indicating the content of changing lanes on the second display unit. The display system according to Configuration 6 is characterized in that. (Configuration 8) The first display unit and the second display unit are arranged in the front, When the speed of the moving body is less than the threshold value and the direction indicator provided on the first end side of the moving body is blinking, the second control unit causes the first display unit and the second display unit to display the information indicating that it intends to change the route to the first end side of the route. When the speed is less than the threshold value and the direction indicator provided on the second end side of the moving body is blinking, the second control unit causes the first display unit to display the information indicating that it intends to change the route to the second end side of the route. The display system according to Configuration 6 or 7, characterized in that. (Configuration 9) It has a third display unit and a fourth display unit respectively arranged on the first end side and the second end side of both ends at the rear. When the speed is less than the threshold value and any of the direction indicators provided on the moving body is blinking, the second control unit causes the third display unit and the fourth display unit to display the information indicating that it intends to change the route. The display system according to Configuration 8, characterized in that. (Configuration 10) When the moving body changes lanes to the first end side, the first display unit displays the information indicating that it intends to change lanes. When the moving body changes lanes to the second end side, the second display unit displays the information indicating that it changes lanes. The display system according to Configuration 1 or 2, characterized in that. (Configuration 11) The first display unit and the second display unit are arranged in front. When the moving body changes the route to the first end side, the first display unit and the second display unit display the information indicating that it intends to change the route to the first end side of the route. When the moving body changes the route to the second end side, the first display unit displays the information indicating that it intends to change the route to the second end side of the route. The display system according to claim 1 or 2, characterized in that. (Configuration 12) It has a third display unit and a fourth display unit respectively arranged on the first end side and the second end side of both ends at the rear. When the moving body changes the route, the display system according to claim 11, wherein the information indicating that the change of the route is intended is displayed on the third display unit and the fourth display unit. (Configuration 13) A mobile device having the display system according to any one of Configurations 1 to 12 and being movable while holding the display system.

[0071] As described above, the preferred embodiments of the present invention have been described. However, the present invention is not limited to these embodiments, and various modifications and changes are possible within the scope of the gist thereof.

Explanation of Reference Numerals

[0072] 1 Vehicle (Moving Body) 10A Front Right Display Unit 10As Display Surface 10B Front Left Display Unit 10Bs Display Surface 10C Rear Right Display Unit 10Cs Display Surface 10D Rear Left Display Unit 10Ds Display Surface

Claims

1. A display system mounted on a moving body and displaying information for a display target outside the moving body, comprising: a first display unit and a second display unit respectively arranged on a first end side and a second end side of at least one of both ends of the front and rear of the moving body; The first display unit and the second display unit are arranged such that their respective display surfaces are inclined with respect to the at least one surface. A display system characterized by this.

2. The display system according to claim 1, wherein the angle of inclination of the display surface with respect to the at least one surface is an angle from 20 degrees to 60 degrees.

3. A position acquisition unit that acquires the position of the display target; A first control unit that performs either a first control of displaying the information on one of the first display unit and the second display unit or a second control of displaying the information on the first display unit and the second display unit according to the position of the display target. The display system according to claim 1 or 2, further comprising:

4. A line-of-sight acquisition unit that acquires the line-of-sight direction of the driver of the moving body; The display system according to claim 3, further comprising an identification unit that identifies the display target using the line-of-sight direction.

5. The first control unit performs the first control when the display target is located in a first area where the display surfaces of either the first display unit or the second display unit can be recognized, and performs the second control when the display target is located in a second area where the display surfaces of the first display unit and the second display unit can be recognized. The display system according to claim 3, characterized by this.

6. An estimation unit that estimates the operation of the moving body; The display system according to claim 1 or 2, further comprising a second control unit that controls the content of the information and the display unit that displays the information according to the operation of the moving body.

7. When the speed of the moving body is greater than a threshold value and the direction indicator provided on the first end side of the moving body is blinking, the second control unit displays the information indicating that a lane change is intended on the first display unit. When the speed is greater than the threshold value and the direction indicator provided on the second end side of the moving body is blinking, the second control unit displays the information indicating that a lane change is to be made on the second display unit. The display system according to claim 6, characterized by this.

8. The first display unit and the second display unit are arranged in the front; When the speed of the moving body is less than a threshold value and the direction indicator provided on the side of the first end of the moving body is blinking, the second control unit causes the first display unit and the second display unit to display the information indicating that it intends to change the route to the side of the first end of the route. When the speed is less than the threshold value and the direction indicator provided on the side of the second end of the moving body is blinking, the second control unit causes the first display unit to display the information indicating that it intends to change the route to the side of the second end of the route. The display system according to claim 6, characterized in that.

9. It has a third display unit and a fourth display unit respectively arranged on the side of the first end and the side of the second end of both ends at the rear. When the speed is less than a threshold value and any one of the direction indicators provided on the moving body is blinking, the second control unit causes the third display unit and the fourth display unit to display the information indicating that it intends to change the route. The display system according to claim 8, characterized in that.

10. When the moving body changes lanes to the side of the first end, the first display unit displays the information indicating that it intends to change lanes. When the moving body changes lanes to the side of the second end, the second display unit displays the information indicating that it changes lanes. The display system according to claim 1 or 2, characterized in that.

11. The first display unit and the second display unit are arranged in front. When the moving body changes the route to the side of the first end, the first display unit and the second display unit display the information indicating that it intends to change the route to the side of the first end of the route. When the moving body changes the route to the side of the second end, the first display unit displays the information indicating that it intends to change the route to the side of the second end of the route. The display system according to claim 1 or 2, characterized in that.

12. It has a third display unit and a fourth display unit respectively arranged on the side of the first end and the side of the second end of both ends at the rear. When the moving body changes the route, the third display unit and the fourth display unit display the information indicating that it intends to change the route. The display system according to claim 11, characterized in that.

13. A moving device having the display system according to claim 1 or 2, characterized in that it can hold and move the display system.

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