JP6644576B2 - Display device for vehicles - Google Patents

Description

  The present invention relates to a vehicle display device that displays an image that can be visually recognized by a driver on a vehicle.

  Generally, main information necessary for driving a vehicle, for example, information such as a traveling speed and an engine rotation speed, is displayed on a meter unit in an instrument panel disposed in front of a driver's seat. In order to allow the display of various information, in addition to the meter unit, in some cases sub-display is installed at the site of the center console or the like of the vehicle interior middle section.

  As another display device, a head-up display (HUD) device may be mounted on a vehicle. In a general vehicle HUD device, an image of light including various information to be displayed is projected from a HUD unit onto a windshield (window glass) or a reflector called a combiner, and the light reflected by the windshield or the like is reflected. Forms an optical path so as to face the direction of the driver's viewpoint. Therefore, the driver can visually recognize the display of the HUD reflected on the windshield or the like as a virtual image while visually recognizing the scenery ahead of the vehicle through the windshield. Accordingly, the driver while maintaining the normal operating conditions, can be viewed by displaying the HUD various information without moving the line of sight, ensuring improved and safety of the visibility is expected.

  For example, a display device for a vehicle disclosed in Patent Document 1 displays the real image by using the multi-display region provided in a central portion of the meter unit, by using the virtual image display area for displaying a virtual image by HUD, these Various display is enabled by the combination of the display areas.

  Further, for example, the vehicle light-emitting display device disclosed in Patent Document 2 displays a virtual image of a display image in front of the driver using each of two light-emitting display devices arranged side by side on the instrument panel side. Is shown. The light emitting positions of the two light emitting display devices are movable in the front-rear direction of the vehicle. That is, by moving the light emission position in the front-rear direction of the vehicle, the light path can be changed, and the virtual image display position can be moved up and down as shown in FIG.

  Further, for example, in a display-equipped vehicle disclosed in Patent Literature 3, a display device for a rear seat is attached to a roof panel in a state where the position can be adjusted in the front-rear direction of the vehicle body. a properly adjustable position of the display device.

JP 2015-168266 A JP 2015-168382 A JP 2010-125945 A

  For example, by using the HUD display technology as disclosed in Patent Literature 1 and Patent Literature 2, it is possible for the driver to visually recognize the displayed content while driving, without moving the line of sight from the front view. Become. Therefore, it is easy to improve visibility and ensure safety during driving.

  However, in the case of the virtual image display of the HUD, the display content and the scene of the front view overlap, and it is difficult for the driver to visually recognize the fine display content. Therefore, only the main information such as the information on the traveling speed is displayed in the HUD. Therefore, in order to obtain a variety of information can not be displayed on HUD, the driver moves the line of sight, also will frequently refer display contents of the meter unit on the instrument panel.

  However, since the meter unit is generally fixed on a plane near the driver in front of the driver's seat, only a two-dimensional display can be realized. Therefore, for example, a display that gives a sense of depth is impossible. In addition, for example, when the driver is an elderly person, his or her visual acuity is reduced, so that even if the driver does not hinder driving, it is difficult to focus on a display at a position close to the driver, and the displayed content is visually recognized. Can be difficult.

  For example, in the technique disclosed in Patent Document 2, it is possible to move the light emission positions of the two light emitting display devices in the front-rear direction of the vehicle and move the position of the virtual image to be formed up and down. It is impossible to move the display in the front-back direction (the depth direction) as viewed. Further, the display device of Patent Document 3 cannot be visually recognized from the position of the driver.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a vehicular display device capable of realizing a new display mode that cannot be realized only by general planar display.

In order to achieve the above object, a vehicle display device according to the present invention is characterized by the following (1) to (5).
(1) a display unit for displaying a real image on a display surface;
A movable support mechanism installed on the dashboard, movably supporting the display unit in a direction approaching a driver and in a direction away from the driver,
Equipped with a,
The movable support mechanism includes a guide rail installed on the dashboard so as to extend in a front-rear direction from a position near a steering wheel to a position below a windshield along a surface of the dashboard,
The display unit is engaged with the guide rail so as to be movable in the front-rear direction with respect to the guide rail .

(2) a drive mechanism that is connected to the display unit and moves the position of the display unit along the movable support mechanism;
Vehicle display device according to (1), comprising the.

(3) a display position control unit that controls the drive mechanism so that the display unit moves in a direction approaching the driver or in a direction away from the driver based on a result of detecting a predetermined situation. The display device for a vehicle according to the above (2), which is characterized in that:

(4) A posture adjusting mechanism capable of adjusting a direction of a display surface of the display unit to a state inclined with respect to a plane orthogonal to a direction of a line of sight of the driver, and a height adjusting mechanism for adjusting a height of the display surface. And at least one of a rotating mechanism capable of rotating the direction of the display surface with respect to the axis of the line of sight. The display for vehicles according to any one of the above (1) to (3), apparatus.

(5) The display unit has a left display device and a right display device arranged at predetermined intervals,
The left display device is engaged with the left guide rail movably in the front-rear direction with respect to the left guide rail,
The right display device is engaged with the right guide rail movably in the front-rear direction with respect to the right guide rail,
The left-right gap between the left guide rail and the right guide rail is increased from the steering wheel side toward the windshield side,
The vehicle display according to any one of (1) to (4), further including: a display control unit configured to display the display content of the left display device and the display content of the right display device in association with each other. apparatus.

  According to the display device for a vehicle having the configuration (1), it is possible to change the position at which the real image is displayed from a position far from the driver to a position closer to the driver or from a position closer to the driver far from the driver. Therefore, for example, it is possible to move to a position where focusing is easy according to the driver's visual acuity. Further, for example, when combined with another display such as a meter unit or a HUD display, each display can be displayed at a different position in the depth direction, so that a display with a three-dimensional effect can be realized as a whole.

  According to the vehicle display device having the configuration (2), the position of the display unit can be easily moved by giving an instruction. Therefore, for example, it is easy to adjust the position for focusing and to adjust the display position according to the situation.

  According to the vehicle display device having the configuration of the above (3), the display position can be automatically moved in the direction of approaching or moving away from the display position when a predetermined situation occurs under the control of the display position control unit. Become. Therefore, a display with a three-dimensional effect in the depth direction becomes possible.

  According to the vehicular display device having the above configuration (4), by adjusting the direction of the display surface, it is possible to prevent the display contents from being difficult to be visually recognized due to the influence of the reflection of external light, or to prevent the display content from being set in the sunset. The effect of glare and dazzle can be suppressed. In addition, by adjusting the height, it is possible to adjust the display position corresponding to the difference in the sitting height of the driver. Further, by adjusting the rotation direction, it is possible to form an optimized display area corresponding to various situations.

  According to the vehicle display apparatus of the above Paragraph (5), it is possible to selectively use optionally two left and right display devices, can form an optimal display area in response to a variety of situations. Therefore, by associating the two left and right display devices with each other, more effective display can be performed. For example, a state in which an obstacle moves from left to right can be expressed over a wide range by linking two display devices.

  ADVANTAGE OF THE INVENTION According to the display apparatus for vehicles of this invention, the realization of a new display form which cannot be implement | achieved only by general planar display is attained. For example, it becomes possible to move the real image display surface to a position where focusing is easy according to the driver's eyesight. Further, for example, when combined with another display such as a meter unit or a HUD display, each display can be displayed at a different position in the depth direction, so that a display with a three-dimensional effect can be realized as a whole.

  The present invention has been briefly described above. Further, details of the present invention will be further clarified by reading through embodiments for carrying out the invention described below (hereinafter, referred to as “embodiments”) with reference to the accompanying drawings. .

FIG. 1 is a perspective view showing an example of the external appearance of the interior of a vehicle equipped with a vehicle display device according to an embodiment of the present invention. FIG. 2 is a perspective view showing an example of a state change in the vehicle display device shown in FIG. Figure 3 is a block diagram showing a configuration example of an electric circuit of a vehicle display device. FIG. 4 is a flowchart illustrating the contents of main control of the vehicle display device.

  Specific embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 shows an example of the appearance of the interior of a vehicle cabin of a vehicle equipped with a vehicle display device according to an embodiment of the present invention. FIG. 2 shows an example of a state change in the vehicle display device. That is, FIGS. 1 and 2 show the appearance of a portion viewed from the front of the driver's seat of the vehicle.

  In the example shown in FIG. 1, display units 10L and 10R are arranged at left and right portions in front of the steering wheel 25, respectively. Display unit 10L, and 10R are respectively characters have graphics, images and various visual information can be displayed a planar display panel 12L, and 12R. These display panels 12L and 12R are constituted by, for example, a liquid crystal display or an EL display. Display panel 12L, and 12R has a base portion 13L which is disposed in each of downward and is supported by 13R.

  As shown in FIGS. 1 and 2, front and rear guide rails 24 </ b> L and 24 </ b> R extending in a front and rear direction from a position near the steering wheel 25 to a position below the windshield 22 along the surface of the dashboard 21. Are provided at intervals. In the example shown in FIG. 1, the distance between the front and rear guide rails 24 </ b> L and 24 </ b> R is relatively small near the steering wheel 25 and relatively large near the windshield 22. In other words, they are arranged so that the left and right spaces are slightly widened toward the front.

  In the vehicle shown in FIG. 1, there is no dedicated instrument panel or a member such as an eave that covers the instrument panel as in a conventional general vehicle, and each part of the dashboard 21 is provided with an instrument panel as needed. It is configured to perform a function. Therefore, the design of the dashboard 21 is formed as a whole in a smoother shape than before.

  The information of each element of the meter unit to be arranged in the instrument panel, that is, information of various instruments such as a speedometer, an engine tachometer, and a fuel gauge is displayed on the display units 10L and 10R arranged on the dashboard 21. It is configured such that the driver can acquire the information using a screen display, a virtual image display of a HUD, or the like.

  The base portion 13L that supports the display panel 12L is engaged with the left-right guide rail 24L for front-rear direction, and is configured to slide and move in the front-rear direction along the guide rail 24L for front-rear direction. there. In addition, a front-rear direction driving mechanism (141L described later) for driving the base portion 13L in the front-rear direction is mechanically connected to the base portion 13L.

  Similarly, the base unit 13R for supporting the display panel 12R is engaged with the right side of the longitudinal guiding the guide rails 24R, slides back and forth along the longitudinal direction guiding guide rails 24R, for movement It is configured. Further, a longitudinal drive mechanism (141R described later) for driving the base 13R in the longitudinal direction is mechanically connected to the base 13R.

  As shown in FIG. 2, each of the display units 10L and 10R is tilted so that the display surfaces of the display panels 12L and 12R are oriented horizontally, and the display surfaces are oriented perpendicular to the surface of the dashboard 21. A posture adjustment mechanism (not shown) is provided so that the posture (the inclination angle of the display surface) can be adjusted between the standing state and the standing state. That is, it is possible to adjust the direction of the display surface so as to orbit around the axis in the left-right direction, and to change the inclination angle with respect to a plane orthogonal to the driver's line of sight. This attitude adjustment mechanism is provided in the base portions 13L and 13R. In addition, the attitude adjusting mechanism has a structure in which the direction of the display surface can be rotated so as to rotate in a direction of orbiting around an axis in the front-rear direction. Further, each of the base portions 13L and 13R includes a height adjustment mechanism (not shown) for adjusting the position in the height direction of the display surfaces of the display panels 12L and 12R.

  In the example shown in FIG. 2, a projection opening 21a is formed on the surface of the dashboard 21 at a position between the front and rear guide rails 24L and 24R. A HUD (head-up display) unit (not shown) is stored below the projection opening 21a. The HUD unit can project display light for displaying, for example, vehicle speed, which is main information, as visible information of characters such as “60 km / h” toward the display image projection area 22 a of the windshield 22. it can. The projected display light is reflected on the surface of the windshield 22 and heads toward the position of the viewpoint of the driver sitting on the driver's seat. Therefore, the driver can visually recognize the display light projected by the HUD unit in the display image projection area 22a. Indeed the image for the driver to visually recognize, the image as a virtual image to appear as if existing in front of the windshield 22, of several meters position.

  Therefore, in the vehicle display device shown in FIGS. 1 and 2, the positions of the display units 10L and 10R are moved in the front-rear direction, the heights of the display surfaces are adjusted, and the display surfaces fall down. / The user can get up, adjust the tilt angle, and rotate the display surface. Such adjustment of the position, height, and attitude of the display surface can be performed manually, or can be automatically performed using a driving mechanism described later. In the case of using a drive mechanism, the adjustment can be performed by a manual switch operation, or can be automatically performed according to the situation.

  Further, by moving each position of the display units 10L and 10R to the vicinity of the windshield 22, and by setting the display surfaces of the display panels 12L and 12R to an angle (0 degrees) in a state of being horizontally inclined. It also functions as a simple HUD that projects the display images on the display panels 12L and 12R onto the windshield 22 and allows the driver to visually recognize the virtual image. In this case, it is easier for the driver to grasp the information by projecting a display image in which the entire display surfaces of the display panels 12L and 12R are displayed in one color such as red or yellow on the windshield 22 than fine information such as characters.

Next, a configuration example of an electric circuit will be described.
FIG. 3 shows a configuration example of an electric circuit of the vehicle display device shown in FIGS. 1 and 2. The vehicle display device shown in FIG. 3 includes a display drive unit 100 and a host ECU (electronic control unit) 200 in addition to the two left and right display units 10L and 10R shown in FIG.

  The display unit 10L includes a display control unit 11L and a display panel 12L. The display control unit 11L controls the content displayed on the screen of the display panel 12L according to an instruction from the host ECU 200. Similarly, the display unit 10R includes a display control unit 11R and a display panel 12R. The display control unit 11R in accordance with an instruction from the host ECU 200, controls the contents to be displayed on the screen of the display panel 12R.

  Display panel 12L, the 12R screen is capable of displaying various visual information as required. For example, it is also possible to display information such as a vehicle speed, an engine rotation speed, a transmission shift position, and a remaining fuel amount, similarly to a meter unit (not shown) arranged on a general instrument panel. It is also possible to display an image taken by a vehicle-mounted camera (not shown). Further, for example, an image of the on-vehicle camera that captures a left-hand blind spot of the own vehicle is displayed on the display unit 10L, and an image of the on-board camera that captures a right-hand blind spot of the own vehicle is displayed on the display unit 10R. If it can be used as an electronic mirror, it can be used for safe driving.

  The display unit drive unit 100 shown in FIG. 3 includes a microcomputer 110, a forward / backward movement instruction switch 121, an inclination angle adjustment instruction switch 122, a height adjustment instruction switch 123, a communication interface 130, a forward / backward drive mechanism 141L, 141R, and a posture. There are provided adjusting drive mechanisms 142L and 142R, and height adjusting drive mechanisms 143L and 143R.

  The microcomputer 110 executes various controls required for the display unit driving unit 100 by executing a program incorporated in advance. That is, data communication is performed with the host ECU 200 via the communication interface 130 to obtain commands and necessary information. Further, the state of each of the switches 121 to 123 is read. Further, the driving of each of the driving mechanisms 141L to 143L and 141R to 143R is controlled according to the situation.

  Rear direction movement instruction switch 121 is a switch for the driver is positioned so as to be operated, it outputs an instruction signal for moving the respective display units 10L and 10R, front in the direction and the rear direction Can be.

  The tilt angle adjustment instruction switch 122 is a switch disposed at a position operable by the driver, and outputs an instruction signal for adjusting the inclination angle of the display surface of each of the display units 10L and 10R. Can be.

  The height adjustment instruction switch 123 is a switch arranged at a position operable by the driver, and outputs an instruction signal for adjusting the position in the height direction of the display surface of each of the display units 10L and 10R up and down. Can be output.

  The longitudinal drive mechanism 141L includes an electric motor as a drive source. In addition, the rotational movement of the electric motor is converted into a longitudinal movement of the vehicle, and a movable part that moves in the longitudinal direction is connected to a base part 13L of the display unit 10L. Further, a position sensor is provided for detecting the position of the movable part. The position information detected by the position sensor can be given to the microcomputer 110.

  Similarly, the front-back direction drive mechanism 141R includes an electric motor as a drive source. In addition, the rotary motion of the electric motor is converted into a motion in the front-rear direction of the vehicle, and a movable portion moving in the front-rear direction is connected to the base portion 13R of the display unit 10R. Further, a position sensor is provided for detecting the position of the movable part. The position information detected by the position sensor can be given to the microcomputer 110.

  The attitude adjustment drive mechanism 142L includes an electric motor as a drive source. In addition, the rotational motion of the electric motor is transmitted to a posture adjusting mechanism connected to the display unit 10L, and generates a motion in a direction of circling around an axis oriented in the left-right direction. Due to this movement, the display surface of the display panel 12L adjusts the attitude (tilt angle) within the range between the angle (0 °) in the state of being horizontally inclined and the angle (90 °) in the state of standing in the vertical direction. can do. Further, a position sensor is provided for detecting the orientation of the display surface of the display panel 12L. The position information detected by the position sensor can be given to the microcomputer 110.

  Similarly, the attitude adjustment drive mechanism 142R includes an electric motor as a drive source. In addition, the rotational motion of the electric motor is transmitted to a posture adjustment mechanism connected to the display unit 10R, and a motion in a direction of circling around an axis oriented in the left-right direction is generated. Due to this movement, the display surface of the display panel 12R adjusts the attitude (tilt angle) within the range between the angle (0 °) in which the display panel is tilted in the horizontal direction and the angle (90 °) in the state where it is erected in the vertical direction. can do. In addition, a position sensor is provided for detecting the orientation of the display surface of the display panel 12R. The position information detected by the position sensor can be given to the microcomputer 110.

  The height adjusting drive mechanism 143L includes an electric motor as a drive source. In addition, the rotational motion of the electric motor is transmitted to a height adjusting mechanism provided on the base portion 13L to be converted into a vertically moving motion, whereby the position for supporting the display panel 12L can be adjusted vertically. . Further, a position sensor is provided for detecting the position of the display panel 12L in the height direction. The position information detected by the position sensor can be given to the microcomputer 110.

  Similarly, the height adjustment drive mechanism 143R includes an electric motor as a drive source. In addition, the rotational motion of the electric motor is transmitted to a height adjusting mechanism provided on the base portion 13R to be converted into a vertically moving motion, whereby the position for supporting the display panel 12R can be adjusted vertically. . Further, a position sensor is provided for detecting the position of the display panel 12R in the height direction. The position information detected by the position sensor can be given to the microcomputer 110.

Next, a control example will be described.
FIG. 4 shows the main control contents of the vehicle display device shown in FIGS. 1 and 2. That is, the microcomputer 110 in the display unit driving unit 100 shown in FIG. 3 performs the control shown in FIG. 4 to control the driving mechanisms 141L to 143L and 141R to 143R and to display the display panels 12L and 12R. Position adjustment, height adjustment, and other posture adjustments can be performed.

<Display surface rising control>
In the initial state, that is, in the state where the ignition of the vehicle is off, the display surface of the display unit 10L is in a posture in which the display unit 10L is tilted in the horizontal direction as shown by a solid line in FIG. Display unit 10R is also similar. Then, when the ignition of the vehicle is turned on, the processing of the microcomputer 110 proceeds from step S11 to S12 in FIG.

  In step S12, the microcomputer 110 switches the orientation of the display surfaces of the display units 10L and 10R from a state in which the display units are tilted in the horizontal direction to a state in which the display units are vertically erected. In other words, the drive mechanisms 142L and 142R for posture adjustment are driven to switch the direction of the display surface to the vertical direction, that is, the direction in which the driver can easily view the screen.

<Moving control by switch operation>
On the other hand, when the driver operates the forward / backward movement instruction switch 121, an instruction to move the position of one or both of the display units 10L and 10R forward or backward can be generated.

  If a forward movement instruction has been issued, the process of the microcomputer 110 proceeds from step S13 to S14. In step S14, the microcomputer 110 continues to drive the electric motor of the front / rear drive mechanism 141L or 141R while the movement instruction is issued, and moves the display unit 10L or 10R forward. However, when reaching the limit position, the drive of the electric motor is stopped at that position.

  If a backward movement instruction has been issued, the process of the microcomputer 110 proceeds from step S15 to S16. In step S16, the microcomputer 110 continues driving the electric motor of the front-rear direction drive mechanism 141L or 141R while the movement instruction is issued, and moves the display unit 10L or 10R backward. However, when reaching the limit position, the drive of the electric motor is stopped at that position.

<Control of approach direction movement display mode>
On the other hand, if the approach direction movement display mode is instructed by host ECU 200, the process of microcomputer 110 proceeds from step S17 to S18. In step S18, the microcomputer 110 drives the front-rear direction drive mechanism 141L or 141R to control the display unit 10L or 10R to move backward at a constant speed. However, when reaching the limit position, the drive of the electric motor is stopped at that position.

  In this case, the screen of the display unit 10L or 10R and the visible information displayed thereon approach the driver. For example, in situations where the vehicle is moving forward, in front of the traveling direction, when obstacles such as vehicles and pedestrians parked it is present, the vehicle and obstacles is relatively own vehicle and the driver Will be approaching. In a general display, a three-dimensional display in which an obstacle approaches the user is impossible. However, by displaying the actual screen itself while approaching the driver in step S18, a three-dimensional display close to reality can be realized. That is, the driver can intuitively understand that an obstacle is approaching by approaching the display screen. Similarly, when the own vehicle accelerates and approaches the preceding vehicle, or when the own vehicle approaches the preceding vehicle due to a decrease in the speed of the preceding vehicle, the screen of the display unit 10L or 10R and By moving the visible information displayed there to move closer to the driver, the driver can be alerted.

<Control of separation direction movement display mode>
If the upper-level ECU 200 has instructed the moving direction display mode, the microcomputer 110 proceeds from step S19 to step S20. In step S20, the microcomputer 110 drives the front-rear direction drive mechanism 141L or 141R to control the display unit 10L or 10R to move forward at a constant speed. However, when reaching the limit position, the drive of the electric motor is stopped at that position.

  In this case, the screen of the display unit 10L or 10R and the visible information displayed thereon move to move away from the driver. For example, in a situation where the own vehicle is moving forward at a constant speed while maintaining a certain distance from the preceding vehicle, if the running speed of the own vehicle suddenly decreases when approaching an uphill, the distance between the own vehicle and the preceding vehicle Will be far apart. In such a case, if the display position corresponding to the preceding vehicle is moved away from the driver, the driver can intuitively understand the change in the distance due to the decrease in the traveling speed of the own vehicle from the change in the display position. can do.

<Control of HUD auxiliary display mode>
On the other hand, when the HUD auxiliary display mode is instructed by host ECU 200, the process of microcomputer 110 proceeds from step S21 to S22. In step S22, the microcomputer 110 drives the front-back direction drive mechanism 141L or 141R to automatically position the display surface of the display unit 10L or 10R at a position near the virtual image display area.

  When the HUD display is used, a virtual image is displayed in a partial area on the windshield 22 in front of the driver, for example, in front of the display image projection area 22a shown in FIG. In the driving state, the HUD display can be visually recognized with almost no movement of the line of sight while looking ahead. However, the amount of information that can be displayed may be insufficient with only the HUD display, and it is necessary to simultaneously display the real image display of the display unit 10L or 10R in combination with the HUD display. However, when the real image display position of the display unit 10L or 10R is largely apart from the HUD display position, necessary information cannot be visually recognized unless the driver moves his / her gaze.

  By executing the processing in step S22, at least one display surface of the display units 10L and 10R automatically moves to a position close to the virtual image display area. For example, as indicated by a dotted line in FIG. 2, the display unit 10L, when positioned 10R to a state of being advanced to a position close to the windshield 22, a display image projection area 22a display unit 10L, and 10R of the display surface Approaching, the virtual image display of the HUD and the real image display of the display units 10L and 10R can be visually recognized at the same time without the driver moving his / her gaze.

  The display units 10L and 10R may be used as a simple HUD by executing the process of step S22. In this case, the microcomputer 110 drives the attitude adjustment drive mechanisms 142L and 142R to switch the direction of the display surface to the horizontal direction, that is, the direction of the windshield 22.

<Control of electronic mirror display when turning right and left>
On the other hand, when the driver operates the operation lever of the turn signal indicator (not shown) when the vehicle turns right or left, the host ECU 200 detects the right turn or left turn instruction, and displays this instruction on the display unit drive unit. Also sent to 100. In this case, the process of the microcomputer 110 proceeds from step S23 to S24.

  In step S24, the front / rear direction drive mechanism 141L or 141R is driven to position the display surface of the display unit 10L or 10R at a predetermined electronic mirror position. For example, when turning left, an appropriate obstacle as a left-side mirror is provided so that the driver can visually recognize, on the screen of the display unit 10L, an obstacle that may be present in a blind spot when viewed from the driver on the left side of the vehicle body of the own vehicle. The display unit 10L is automatically positioned at the position. At this time, the host ECU 200 outputs an image of an in-vehicle camera (not shown) for photographing the left side of the vehicle body to the display unit 10L.

  When turning right, an obstacle that may be present in a blind spot when viewed from the driver on the right side of the vehicle body of the host vehicle is suitable as a right mirror so that the driver can visually recognize the obstacle on the screen of the display unit 10R. in position, automatically positioning the display unit 10R. At this time, the host ECU 200 outputs an image of the vehicle-mounted camera (not shown) for photographing the right side of the vehicle body to the display unit 10R.

  Accordingly, in the driver screen of the display unit 10L at the time of left turn, since the time of right turn can confirm an obstacle at the position of the blind spot, respectively on the screen of the display unit 10R, it is possible to prevent the entrainment of the obstacle .

<Control of tilt angle adjustment of display surface>
On the other hand, when the driver operates the inclination angle adjustment instruction switch 122, the inclination angle of one or both of the display units 10L and 10R (for example, the inclination with respect to a plane perpendicular to the driver's line of sight). An instruction to change the size of the data can be generated.

  If the tilt adjustment instruction has been issued, the processing of the microcomputer 110 proceeds from step S25 to S26. In step S26, the microcomputer 110 drives the electric motor of the attitude adjustment drive mechanism 142L or 142R in the forward or reverse direction in accordance with the instruction to adjust the inclination of the display surface of the display unit 10L or 10R.

<Display surface tilt control>
On the other hand, immediately after the ignition is switched off, the processing of the microcomputer 110 according to an instruction of the upper ECU200 proceeds from step S27 S28. In step S28, the attitude adjusting drive mechanisms 142L and 142R are driven to automatically adjust the inclination of the display surfaces of the display units 10L and 10R, and switch from the upright state to the horizontal state.

<Other controls>
Although not shown in FIG. 4, a height adjustment instruction can be generated, for example, by operating the height adjustment instruction switch 123 by the driver. In this case, the microcomputer 110 drives the height adjustment driving mechanisms 143L and 143R according to the height adjustment instruction. Thereby, the height of the display surfaces of the display units 10L and 10R is adjusted. Therefore, for example, the height of the display surface can be changed so that the height becomes appropriate according to the difference in the sitting height of the driver.

  The tilt angles of the display surfaces of the display units 10L and 10R can be automatically adjusted in addition to manual adjustment by operating the tilt angle adjustment instruction switch 122. For example, it is conceivable to arrange an illuminance sensor or the like in the vicinity of the display units 10L and 10R and automatically optimize the inclination angle according to the situation. That is, the inclination angle can be automatically adjusted so as to suppress the influence of the reflection of extraneous light and the glare of the setting sun.

  The upper ECU 200 may display independent contents on the left display panel 12L and the right display panel 12R, respectively, or may control the two display contents to cooperate with each other. For example, a display area of the left display panel 12L and a display area of the right display panel 12R are connected to form a wide (long left and right) display space, and display is performed according to a difference in position of an obstacle or the like to be displayed. It is possible to switch the screen to be displayed from the left display panel 12L to the right display panel 12R, or to switch in the opposite direction.

  In the above-described vehicle display device, the positions of the display surfaces of the display units 10L and 10R can be moved in the front-back direction of the vehicle body, that is, in the direction in which the distance from the driver changes. Therefore, for example, even a driver with poor eyesight, such as an elderly person, can move the screen to a position where it is easy to focus on the displayed content (S14, S16).

  In addition, these screens can be moved in the front-rear direction while any visible information is displayed on the screens of the display units 10L and 10R (S18, S20). Therefore, it is possible to control the sense of distance and the sense of three-dimensionality given to the driver by the screen display of the display units 10L and 10R. For example, it is possible to reflect a change in the distance between the host vehicle and an obstacle existing in front of the host vehicle on the screen display of the display units 10L and 10R or to emphasize the change.

  Further, when the real image display of the display units 10L and 10R and the virtual image display of the HUD are combined, the display positions of the real image and the virtual image can be automatically brought close to each other (S22), so that the driver does not move his / her eyes. Also, the display contents of both the real image and the virtual image can be visually recognized.

  Further, when the display units 10L and 10R are used as an electronic mirror for preventing entanglement at the time of turning right and left of the host vehicle, the position where the display units 10L and 10R are arranged can be automatically optimized (S24). it can. That is, the display units 10L and 10R can be arranged at appropriate places corresponding to the range of the blind spot that the driver wants to check when making a right or left turn.

  Further, for example, in a situation where the visibility of the screens of the display units 10L and 10R is reduced due to the influence of the reflection of extraneous light and the glare of the setting sun, the inclination angle of each display surface is appropriately adjusted. (S26) The visibility can be improved.

  Further, when the display of the display units 10L and 10R is not used, the posture of each display surface can be changed to a state in which the display surface is tilted in the horizontal direction (S28). S12) can be performed. Thereby, an effect for the driver can be obtained.

Here, the features of the above-described embodiment of the vehicle display device according to the present invention will be briefly summarized and listed below in [1] to [5].
[1] a display unit for displaying a real image on a display surface;
A movable support mechanism (base portions 13L, 13R, front-rear direction) which is installed on the dashboard (21) and movably supports the display section (display units 10L, 10R) in a direction approaching the driver and in a direction away from the driver. Guide rails 24L, 24R),
A display device for a vehicle, comprising:

[2] A drive mechanism (a front-back direction drive mechanism 141L, 141R) coupled to the display unit and configured to move the position of the display unit along the movable support mechanism.
Vehicle display device according to [1], comprising the.

[3] A display position control unit (microcomputer 110, microcomputer 110) that controls the drive mechanism so that the display unit moves in a direction approaching the driver or moving away from the driver based on a result of detecting a predetermined situation. S14, S16, S18, S20),
The vehicle display device according to the above [2], comprising:

[4] A posture adjustment mechanism (posture adjustment drive mechanisms 142L and 142R) that can adjust the direction of the display surface to be inclined with respect to a surface orthogonal to the direction of the driver's line of sight, and the height of the display surface. At least one of a height adjustment mechanism (height adjustment drive mechanisms 143L and 143R) for adjusting the angle of rotation, and a rotation mechanism capable of rotating the direction of the display surface with respect to the axis in the line of sight. The vehicle display device according to any one of the above [1] to [3].

[5] the display unit, and a left side display device that is disposed at a predetermined interval (display panel 12L) and the right side display device (display panel 12R),
A display control unit (upper ECU 200) for displaying the display content of the left display device and the display content of the right display device in association with each other
The vehicle display device according to any one of the above [1] to [4], comprising:

10L, 10R Display unit 11L, 11R Display control unit 12L, 12R Display panel 13L, 13R Base unit 21 Dashboard 21a Projection opening 22 Windshield 22a Display image projection area 24L, 24R Guide rail for forward and backward direction guidance 25 Steering wheel 100 Display unit drive unit 110 Microcomputer 121 Forward / backward movement instruction switch 122 Inclination angle adjustment instruction switch 123 Height adjustment instruction switch 130 Communication interface 141L, 141R Front / back direction drive mechanism 142L, 124R Attitude adjustment drive mechanism 143L, 143R For height adjustment Drive mechanism 200 Upper ECU

Claims (5)

A display unit for displaying a real image on the display surface,
A movable support mechanism installed on the dashboard, movably supporting the display unit in a direction approaching a driver and in a direction away from the driver,
Equipped with a,
The movable support mechanism includes a guide rail installed on the dashboard so as to extend in a front-rear direction from a position near a steering wheel along a surface of the dashboard to a position below a windshield,
The display unit for a vehicle , wherein the display unit is engaged with the guide rail so as to be movable in the front-rear direction with respect to the guide rail . 2. The vehicle display device according to claim 1, further comprising: a driving mechanism connected to the display unit and configured to move a position of the display unit along the movable support mechanism. Based on the result of detecting a predetermined situation, characterized in that the display unit with a display position control unit for controlling the drive mechanism so as to move away from the direction or the driver approaching the driver The vehicle display device according to claim 2. A posture adjustment mechanism capable of adjusting the orientation of the display surface of the display unit to a state inclined with respect to a plane orthogonal to the direction of the driver's line of sight, a height adjustment mechanism for adjusting the height of the display surface, and The vehicle display device according to any one of claims 1 to 3, further comprising at least one of a rotation mechanism capable of rotating a display surface with respect to an axis in a line-of-sight direction. The display unit has a left display device and a right display device arranged at predetermined intervals,
The left display device is engaged with the left guide rail movably in the front-rear direction with respect to the left guide rail,
The right display device is engaged with the right guide rail movably in the front-rear direction with respect to the right guide rail,
The left-right gap between the left guide rail and the right guide rail is increased from the steering wheel side toward the windshield side,
The vehicle according to any one of claims 1 to 4, further comprising: a display control unit configured to display a display content of the left display device and a display content of the right display device in association with each other. Display device.

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