JP2019018841A - Display device for vehicle - Google Patents

Abstract

To provide a display device for vehicle capable of inhibiting necessary information from being difficult to be read while giving the sense of presence to a driver.SOLUTION: A display device for vehicle includes: a display 10 installed in a vehicle; a driver information acquisition part 43 for acquiring a view point of a driver or the position of a view point related part being a part that moves with the view point; an image data acquisition part 41 for acquiring image data for creating a display image to be displayed in a display part; and a drawing processing part 44 for creating a display image on the basis of the image data to display the display image in the display part. The image data is divided into movement suppression image data and movement promotion image data, and the drawing processing part determines a moving amount of a display image created from the movement promotion image data on the basis of an amount of change in the position of the view point related part, and also makes the moving amount larger than a moving amount of a display image created from the movement suppression image data.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a vehicle display device that displays various images on a display unit installed in a vehicle.

  An apparatus for displaying various images on a display unit installed in a vehicle is known. The device disclosed in Patent Literature 1 displays an image of instruments on a display unit installed in a vehicle. Further, in the device disclosed in Patent Document 1, the shape of the instrument image changes to the shape viewed from the driver's viewpoint in response to the movement of the driver's viewpoint. In this specification, the viewpoint means not the point where the line of sight is poured, but the position of the eye that is the base point of the line of sight.

JP 2010-58633 A

  In order to give the driver a greater sense of presence than the device disclosed in Patent Document 1, in accordance with the driver's viewpoint and movement of the head, or the acceleration of the vehicle causing the movement of the viewpoint and head The image displayed on the display unit can be moved more greatly. However, when the driver's viewpoint is moved, if the image displayed on the display unit is moved more greatly, the visibility of the image is reduced. For example, the vehicle displayed on the speedometer The driver may have difficulty reading necessary information such as speed.

  The present disclosure has been made based on this situation, and an object of the present disclosure is to provide a display device for a vehicle that can suppress the difficulty of reading necessary information while giving the driver a sense of reality. There is.

  The above object is achieved by a combination of the features described in the independent claims, and the subclaims define further advantageous embodiments. Reference numerals in parentheses described in the claims indicate a correspondence relationship with specific means described in the embodiments described later as one aspect, and do not limit the disclosed technical scope.

One disclosure for achieving the above object includes a display unit (10) installed in a vehicle,
A driver information acquisition unit (43) that acquires the position of the viewpoint-related part that is a part that moves together with the viewpoint of the driver or the viewpoint;
An image data acquisition unit (41) for acquiring image data for creating a display image to be displayed on the display unit;
A drawing processing unit (44) for creating a display image based on the image data and displaying the display image on the display unit;
The image data is divided into movement suppression image data and movement promotion image data.
The drawing processing unit determines the amount of movement of the display image created from the movement promotion image data based on the amount of change in the position of the viewpoint-related part, and is larger than the amount of movement of the display image created from the movement suppression image data This is a display device for a vehicle.

  According to this vehicle display device, the display image created from the movement promotion image data is determined based on the amount of change in the position of the viewpoint-related part, and the movement amount of the display image is determined from the movement suppression image data. It is larger than the movement amount of the display image to be created. Therefore, compared with the case where the movement amount of all the display images is set as the movement amount of the display image created from the movement suppression image data, it is possible to give the driver a sense of reality. Further, the movement amount of the display image created from the movement suppression image data is smaller than the movement amount of the movement promotion image data. Therefore, by classifying image data that needs to be read as movement-suppressed image data, it is possible to prevent the necessary information from being difficult to read.

In addition, another disclosure for achieving the above object includes a display unit (10) installed in a vehicle,
A vehicle acceleration acquisition unit (145) for acquiring acceleration generated in the vehicle;
An image data acquisition unit (41) for acquiring image data for creating a display image to be displayed on the display unit;
A drawing processing unit (144) for creating a display image based on the image data and displaying the display image on the display unit;
The image data is divided into movement suppression image data and movement promotion image data.
The drawing processing unit determines the movement amount of the display image created from the movement promotion image data based on the acceleration acquired by the vehicle acceleration acquisition unit, and is larger than the movement amount of the display image created from the movement suppression image data. This is a display device for a vehicle.

  According to the vehicle display device, the display image created from the movement promotion image data is determined based on the acceleration generated in the vehicle, and the movement amount of the display image is a display created from the movement suppression image data. It is larger than the moving amount of the image. Therefore, compared with the case where the movement amount of all the display images is set as the movement amount of the display image created from the movement suppression image data, it is possible to give the driver a sense of reality. Further, the movement amount of the display image created from the movement suppression image data is smaller than the movement amount of the movement promotion image data. Therefore, by classifying image data that needs to be read as movement-suppressed image data, it is possible to prevent the necessary information from being difficult to read.

It is a block diagram which shows the structure of the display apparatus 1 for vehicles of 1st Embodiment. 2 is a diagram illustrating an installation example of a line-of-sight detection device 30. FIG. 6 is a diagram showing a state in which a display object 60 is arranged in a virtual space 50. 3 is a flowchart for explaining processing executed by a drawing processing unit 44 in FIG. 1. Speedometer dial 61 is a diagram showing a rotation center C _A tachometer dial 62. It is a diagram illustrating a rotation center _{C B} of the road 63 and the car 64. It is a figure which shows the speedometer dial 61 and the tachometer dial 62 when a viewpoint position is 0 degree | times. It is a figure which shows rotation angle (theta) 2 of the speedometer dial 61 and the tachometer dial 62 at the change angle (theta) 1 of a driver | operator's viewpoint. It is a figure which shows the road 63 and the car 64 when a viewpoint position is 0 degree | times. It is a figure which shows the rotation angle (theta) 3 of the road 63 and the car 64 at the time of change angle (theta) 1 of a driver | operator's viewpoint. It is a block diagram which shows the display apparatus for vehicles 100 of 2nd Embodiment. 12 is a flowchart illustrating processing executed by the drawing processing unit 144 of FIG. 11. It is a figure which shows the specific example of a process of S16. It is a figure which shows the specific example of a process of S17. It is a figure which shows the example by which the display target object 60 is arrange | positioned far from the rotation center CA. It is a figure which shows the example which rotationally moves the display target object 60 in the direction opposite to the moving direction of the head 4. FIG.

  Hereinafter, embodiments will be described with reference to the drawings. FIG. 1 shows a configuration of a vehicle display device 1 according to the first embodiment. The vehicle display device 1 is mounted on a vehicle 2. The vehicle display device 1 includes a display 10, an image data storage unit 20, a line-of-sight detection device 30, and a calculation device 40.

  The display 10 corresponding to the display unit is installed on the instrument panel of the vehicle 2 and displays various information regarding the vehicle 2. Information is displayed as an image. Hereinafter, an image displayed on the display 10 is referred to as a display image. The display image is not limited to a detailed shape such as a photograph, and includes what are called geometric figures, illustrations, and pictures. In addition, characters are also displayed on the display 10 as a display image.

  The image data storage unit 20 stores data (hereinafter referred to as image data) for creating various display images to be displayed on the display 10. The display image includes an image displayed three-dimensionally. For a display image displayed three-dimensionally, a three-dimensional shape is stored as image data.

  The line-of-sight detection device 30 detects the driver's viewpoint and line-of-sight direction. In order to detect these, the line-of-sight detection device 30 includes a camera 31. FIG. 2 shows an installation example of the line-of-sight detection device 30. In the example of FIG. 2, the line-of-sight detection device 30 is disposed below the display 10. The imaging range of the camera 31 provided in the line-of-sight detection device 30 is set so that the driver's head 4 is included. The installation position of the line-of-sight detection device 30 is not limited to the position illustrated in FIG. 2, and may be installed at a position other than the position illustrated in FIG. 2 as long as the driver's head 4 can be imaged.

  The line-of-sight detection device 30 analyzes the image captured by the camera 31 and detects the position of the driver's eyes. More specifically, the positions of the eye reference point and moving point are detected. There is known a method for detecting a line of sight from these positional relationships, with the eye reference point as the head and the eye moving point as the iris. Also known is a method of detecting the line of sight from these positional relationships, with the eye reference point being corneal reflection and the eye moving point being the pupil.

  The arithmetic device 40 is a computer including a CPU, a RAM, a ROM, an I / O, and a bus line that connects these components. The ROM stores a program executed by the CPU. Note that this program only needs to be stored in a non-transitory tangible storage medium, and the specific storage medium is not limited to the ROM. For example, the program may be stored in a flash memory. Executing the program by the CPU corresponds to executing a method corresponding to the program.

  As shown in FIG. 2, the arithmetic device 40 executes a program stored in the ROM so that the image data acquisition unit 41, the measurement value acquisition unit 42, the driver information acquisition unit 43, and the drawing processing unit 44 are executed. As a function. Note that some or all of the functional blocks included in the arithmetic device 40 may be realized using one or a plurality of ICs (in other words, as hardware). Moreover, you may implement | achieve part or all of the function with which the arithmetic unit 40 is provided by the combination of execution of the software by CPU, and a hardware member.

  The image data acquisition unit 41 acquires image data from the image data storage unit 20. FIG. 3 shows a state where the display object 60 is arranged in the virtual space 50. The image data acquisition unit 41 acquires image data of the display object 60.

  In the present embodiment, an image obtained by viewing the display object 60 arranged in the virtual space 50 from the virtual viewpoint is displayed on the display 10 as a display image. That is, these display objects 60 are objects displayed on the display 10. Specifically, the display object 60 shown in FIG. 3 is a speedometer dial 61, a tachometer dial 62, a road 63, and a car 64. Note that the car 64 conceptually represents the host vehicle. These are examples, and the display object 60 may include objects other than those shown in FIG. For example, various instruments such as a fuel gauge and a water temperature gauge may be included in the display object 60. The image data acquisition unit 41 acquires image data of these display objects 60.

  In addition, an illumination 65 and a camera 66 are arranged in the virtual space 50 shown in FIG. The illumination 65 indicates sunlight, and the camera 66 indicates the driver's viewpoint and line of sight. An image captured by the camera 66 is displayed on the display 10 as a display image. Therefore, the camera 66 arranged in the virtual space 50 means a virtual viewpoint.

  The measurement value acquisition unit 42 acquires measurement values to be reflected on the display object 60. In the example shown in FIG. 3, the display object 60 includes a speedometer dial 61 and a tachometer dial 62. Therefore, the measurement value acquisition unit 42 acquires the vehicle speed and the engine rotation speed as measurement values. These measurement values are acquired from sensors that detect these measurement values.

  The driver information acquisition unit 43 acquires the position of the driver's viewpoint. The line-of-sight detection device 30 sequentially detects the position of the driver's viewpoint. Therefore, the driver information acquisition unit 43 sequentially acquires the position of the driver's viewpoint from the line-of-sight detection device 30. The viewpoint is an example of a viewpoint-related part in the claims.

  The drawing processing unit 44 displays a display image based on the image data acquired by the image data acquisition unit 41, the measurement value acquired sequentially by the measurement value acquisition unit 42, and the position of the driver's viewpoint acquired sequentially by the driver information acquisition unit 43. Are sequentially created, and the created display image is displayed on the display 10. The processing executed by the drawing processing unit 44 will be described with reference to the flowchart shown in FIG. In FIG. 4, step (hereinafter, step is omitted) S <b> 1 is a process executed by the measurement value acquisition unit 42, and S <b> 2 is a process executed by the driver information acquisition unit 43. After S3, the drawing processing unit 44 executes.

  The process shown in FIG. 4 is performed after a condition for displaying a display image on the display 10 is satisfied, such as when the power of the vehicle 2 is turned on, and in a state where the image data acquisition unit 41 acquires image data. To be executed.

  In S1, a measured value is acquired. In S2, the position of the driver's viewpoint is acquired. In S3, based on the measurement value acquired in S1, the position of the pointer of the display target 60 including the pointer among the display target 60 arranged in the virtual space 50 is determined.

  In S4, the display object 60 reflecting the position of the pointer determined in S3 is arranged in the virtual space 50. By performing the following processes of S5 and S6, an image obtained by viewing the display object 60 as viewed from the camera 66 based on the angle change of the position of the driver's viewpoint is displayed on the display 10. However, in this embodiment, the display object 60 has a rotation angle larger than the group A in which the rotation angle is smaller than the change angle θ of the position of the driver's viewpoint and the change angle θ of the position of the driver's viewpoint. Divided into group B.

  The change angle θ of the present embodiment is the difference between the line G connecting the middle position of both eyes of the driver, that is, the horizontal center of the head 4 and the rotation center C determined for each display object 60, and the reference line B. It means the angle to make. The reference line segment B is a line segment that connects the middle position of the driver's eyes and the center of rotation when the middle position of the driver's eyes is at the reference position. The reference position is, for example, a position on a vertical plane that passes through the steering center and is parallel to the longitudinal direction of the vehicle. 8 and 10 show these line segment G and reference line segment B. FIG.

  Image data whose information such as the position of the pointer needs to be read is classified into the A group. The need to read information means that it is necessary to recognize a slight difference in the position of the shape or to recognize a slight difference in the shape. One of the points that need to recognize a slight difference in the position of the shape is the position of the pointer. In addition, there is a character that needs to recognize the difference in shape.

  On the other hand, image data that does not require a driver to read information or does not need to read information in a short time is classified into the B group. The image data classified into the A group corresponds to the movement suppression image data in the claims, and the image data classified into the B group corresponds to the movement promotion image data in the claims. In the example of FIG. 3, the image data of the speedometer dial 61 and the tachometer dial 62 are classified into the A group, and the image data of the road 63 and the car 64 are classified into the B group.

  In S5, the display object 60 represented by the image data belonging to the A group is rotated. The display object 60 of the A group is rotated by an angle obtained by multiplying the change angle θ of the position of the driver's viewpoint by a positive coefficient smaller than 1. The specific value of the positive coefficient is determined based on an experiment in consideration of the balance between ensuring visibility and improving the sense of presence or driving.

Figure 5 shows a rotation center C _A speedometer dial 61, tachometer dial 62. The speedometer dial 61 and the tachometer dial 62 are arranged on the same plane. This plane is hereinafter referred to as a meter arrangement plane 67. Rotation center C _A is set to the meter arrangement plane 67. More specifically, the rotation center C _A, in the meter arrangement surface 67, is set to an intermediate position between the speedometer dial 61 and tachometer dial 62.

  In S6, the display object 60 represented by the image data belonging to the B group is rotated. The display object 60 of the B group is rotated by an angle obtained by multiplying the change angle θ of the position of the driver's viewpoint by a positive coefficient larger than 1. The specific numerical value of the positive coefficient that determines the rotation angle of the B group is also determined based on experiments in consideration of the balance between ensuring visibility and improving the sense of presence or driving.

Figure 6 shows a rotation center _{C B} of the road 63 and the car 64. The center of rotation C _B is set as far as possible forward in the virtual space 50. The forward direction is a direction away from the camera 66 in the imaging direction of the camera 66 facing an angle of 0 degrees. For example, setting the rotational center C _B to a position to be the vanishing point in the virtual space 50. The road 63 having a long depth is arranged in a direction toward the vanishing point.

  FIG. 7 shows the speedometer dial 61 and the tachometer dial 62 when the viewpoint position is θ = 0 degrees. FIG. 7 also shows a reference line segment B. FIG. 7 is a plan view of the virtual space 50 as viewed from above, that is, a plan view. Similarly, FIGS. 8 to 10 are views of the virtual space 50 as viewed from above. The orientation shown in FIG. 7 is the reference orientation of the speedometer dial 61 and the tachometer dial 62. In FIG. 7, the meter arrangement plane 67 is orthogonal to the reference line segment B.

  On the other hand, FIG. 8 shows the rotation angle θ2 of the speedometer dial 61 and the tachometer dial 62 when the change angle θ of the driver's viewpoint becomes θ1. Since the rotation angle θ2 of the speedometer dial 61 and the tachometer dial 62 is an angle obtained by multiplying the change angle θ1 of the driver's viewpoint by a coefficient smaller than 1, θ2 <θ1.

  FIG. 9 shows the road 63 and the car 64 when the viewpoint position is 0 degree. The direction shown in FIG. 9 is the reference direction of the speedometer dial 61 and the tachometer dial 62. In FIG. 9, the road 63 is parallel to the reference line segment B. On the other hand, FIG. 10 shows the rotation angle θ3 of the road 63 and the car 64 when the change angle θ of the driver's viewpoint becomes θ1. Since the rotation angle θ3 of the road 63 and the car 64 is an angle obtained by multiplying the change angle θ1 of the driver's viewpoint by a coefficient larger than 1, θ1 <θ3.

  In subsequent S <b> 7, an image in which the display object 60 after the rotation processing in S <b> 5 and S <b> 6 is viewed from the position of the camera 66 is generated. The generated image is a display image. The position of the camera 66 is determined from the position of the driver's viewpoint acquired in S13. The position of the illumination 65 is the position of the sun at the time of image generation. In order to determine the position of the sun, a relationship is established in which the angle of the sun is determined from the time, the traveling direction, and the current position. The position of the illumination 65 is determined using this relationship, the actual time, the traveling direction, and the current position. As the current position, for example, the position detected by the GNSS receiver is used. The traveling direction may be calculated from the locus of the current position.

  When viewed from the position of the camera 66, the road 63 and the car 64 may overlap the speedometer dial 61 or the tachometer dial 62. That is, the display object 60 of group A and the display object 60 of group B may overlap. In this case, the display image is created so that the display image created from the group A image data is always in front of the display image created from the group B image data. After creating the display image, the display image is output to the display 10.

[Summary of First Embodiment]
By executing the above processing, when the position of the driver's viewpoint changes from the 0 degree direction, the display image belonging to the A group and the display image belonging to the B group each have the position of the driver's viewpoint of 0 degrees. The image is rotated with respect to the display image displayed at the time of.

  However, the rotation angle of the display image created from the image data of group B is an angle obtained by multiplying the change angle θ of the position of the driver's viewpoint by a coefficient larger than 1. On the other hand, the rotation angle of the display image created from the image data of group A is an angle obtained by multiplying the change angle θ by a positive coefficient smaller than 1. Therefore, the rotational movement amount of the display image of the B group is larger than the rotational movement amount of the display image of the A group. Therefore, compared with the case where the rotational movement amount of all the display images is used as the rotational movement amount of the display image of the A group, it is possible to give the driver a sense of reality.

  Further, the rotational movement amount of the display image of the A group is made smaller than the rotational movement amount of the display image of the B group. Therefore, image data that needs to be read, such as image data for creating the speedometer dial 61 and the tachometer dial 62, may be difficult to read necessary information by classifying it into the A group. Can be suppressed.

Further, in this embodiment, by setting the rotation center C _A speedometer dial 61 and tachometer dial 62 that belong to the A group to the meter arrangement plane 67. On the other hand, the rotation center C _B of the road 63 and the car 64 belonging to the B group is set in front of the rotation center C _A in the virtual space 50. In this way, than the case of setting the rotation center C _B of the road 63 and the car 64 to the meter arrangement plane 67, the movement amount on the display 10 of the road 63 and the car 64 becomes larger. Therefore, it is possible to give the driver a more realistic feeling.

  In the present embodiment, the display image created from the image data of the A group is always displayed in front of the display image created from the image data of the B group. This also prevents the necessary information from becoming difficult to read.

Second Embodiment
Next, a second embodiment will be described. In the following description of the second embodiment, elements having the same reference numerals as those used so far are the same as elements having the same reference numerals in the previous embodiments unless otherwise specified. Further, when only a part of the configuration is described, the above-described embodiment can be applied to the other parts of the configuration.

  FIG. 11 shows a configuration of the vehicle display device 100 according to the second embodiment. The vehicle display device 100 includes an acceleration sensor 70. The arithmetic device 140 includes a vehicle acceleration acquisition unit 145, and includes a drawing processing unit 144 that is different from the first embodiment.

  The acceleration sensor 70 sequentially detects the acceleration of the vehicle 2 in the width direction, that is, the left-right direction. In addition to this, the longitudinal and vertical accelerations of the vehicle 2 may be detected.

  The vehicle acceleration acquisition unit 145 sequentially acquires lateral acceleration generated in the vehicle 2 from the acceleration sensor 70. The drawing processing unit 144 is different from the drawing processing unit 44 of the first embodiment in that the rotation angle of the display object 60 is determined based on the lateral acceleration of the vehicle 2 acquired by the vehicle acceleration acquisition unit 145.

  The processing of the drawing processing unit 144 will be described with reference to the flowchart shown in FIG. The process shown in FIG. 12 is a process executed instead of FIG. In FIG. 12, S11 is a process executed by the measurement value acquisition unit 42, and is the same process as S1. S <b> 12 is a process executed by the vehicle acceleration acquisition unit 145, and acquires the lateral acceleration of the vehicle 2 from the acceleration sensor 70. S13 is a process executed by the driver information acquisition unit 43, and is the same process as S2. After S14, the drawing processing unit 144 executes.

S14 and S15 are the same processes as S3 and S4 in FIG. 4, respectively. In S16, rotation processing is performed on the display object 60 represented by the image data belonging to the A group among the display objects 60. However, unlike 1st Embodiment, in this S16, the rotation angle of the display target object 60 which belongs to A group is made into change angle (theta) of a driver | operator's viewpoint. The rotation center C _A is the same as the first embodiment.

  When the rotation angle of the group A is determined in this way, even if the position of the driver's head 4 changes due to the lateral acceleration of the vehicle 2, the speedometer dial 61 and the tachometer dial 62 are placed on the driver's face. You can make them face up.

  FIG. 13 shows a specific example of the processing of S16. In the example of FIG. 13, a large acceleration is generated in the left-right direction of the vehicle 2 when the steering wheel 3 is greatly turned in a short time, and thus the position of the driver's head 4 is greatly moved to the right side of the figure. ing.

  Thus, even if the position of the driver's head 4 moves greatly, in the second embodiment, the speedometer dial 61 and the tachometer dial 62 are directly opposed to the driver's face. Accordingly, it is possible to suppress a decrease in visibility of the speedometer dial 61 and the tachometer dial 62.

  In S17, rotation processing is performed on the display object 60 represented by the image data belonging to the B group among the display objects 60. In 2nd Embodiment, the rotation angle of the display target object 60 which belongs to B group is determined based on the magnitude | size of the acceleration acquired by S12. Specifically, the relationship between the magnitude of acceleration in the left-right direction and the change angle θ of the driver's viewpoint is determined in advance based on experiments. Then, a value obtained by multiplying the change angle θ determined from the acceleration acquired in S12 and the above relationship by a coefficient larger than 1 is set as the rotation angle.

  When the rotation angle is determined in this way, the rotation angle of the display object 60 of the group B is larger than the angle that directly faces the driver's face. That is, also in the second embodiment, the rotational movement amount of the display object 60 of the B group is larger than the rotational movement amount of the display object 60 of the A group.

  FIG. 14 shows a specific example of the processing of S17. However, unlike FIG. 13, the operation amount of the steering 3 is not large. Therefore, the lateral acceleration generated in the vehicle 2 by the rotation of the steering 3 is not so large. As a result, the change in the position of the driver's head 4 is not so great. However, in the second embodiment, the rotation angle of the display object 60 of the B group is an angle obtained by multiplying the change angle θ determined from the acceleration generated in the left-right direction of the vehicle 2 by a coefficient larger than 1. Therefore, as shown in FIG. 14, the rotation angle θ5 with respect to the road 63 and the car 64 is larger than the change angle θ4 of the driver's face.

  In S18, an image obtained by viewing the display object 60 after the rotation process in S16 and S17 from the position of the camera 66 is generated as a display image. The position of the camera 66 and the position of the illumination 65 are determined by the same method as in the first embodiment. Also, the display image is created so that the display image created from the image data of the A group is always in front of the display image created from the image data of the B group. After creating the display image, the display image is output to the display 10.

[Summary of Second Embodiment]
In the second embodiment, the rotation angle of the display object 60 of the B group is determined according to the acceleration in the left-right direction of the vehicle 2. Moreover, the rotation angle of the display object 60 of the B group is larger than the rotation angle of the display object 60 of the A group. Therefore, it is possible to give the driver a sense of realism and driving feeling compared to the case where the rotational movement amount of all the display images is the rotational movement amount of the display image created from the image data of the A group.

  More specifically, the rotation angle of the group B with respect to the display object 60 is a rotation angle obtained by multiplying the change angle θ determined from the acceleration generated in the left-right direction of the vehicle 2 by a coefficient larger than 1. Therefore, as illustrated in FIG. 14, the road 63 and the car 64 move violently even if the driver slightly operates the steering 3. Therefore, a sense of reality can be given to the driver.

  Further, the rotational movement amount of the display image of the A group is smaller than the rotational movement amount of the display image of the B group. Moreover, even if the position of the driver's head 4 changes, the display image of the A group is set to a rotation angle that faces the driver's face. Therefore, even if the position of the driver's head 4 changes, it can be suppressed that the necessary information displayed in the display image of the A group becomes difficult to read.

  Although the embodiment has been described above, the disclosed technology is not limited to the above-described embodiment, and the following modifications are also included in the disclosed range, and further, within the scope not departing from the gist other than the following. Various changes can be made.

<Modification 1>
In the above-described embodiment, the drawing processing units 44 and 144 rotate and move the display object 60. However, the movement mode of the display object 60 may be linear movement in the front-rear direction instead of rotation movement.

  In the case where the display object 60 is linearly moved in the front-rear direction, when the movement amount is determined based on the viewpoint-related part of the driver, the display target is determined based on the amount of change in the vehicle front-rear direction position of the viewpoint-related part. The object 60 is moved back and forth in the virtual space 50. The correspondence between the amount of change in the vehicle front-rear direction position of the viewpoint related part and the amount of movement of the display object 60 in the front-rear direction is set in advance.

  In the case where the display object 60 is linearly moved in the front-rear direction, when the movement amount is determined based on the longitudinal acceleration generated in the vehicle 2, the display object 60 is based on the longitudinal acceleration generated in the vehicle 2. Is moved back and forth in the virtual space 50. The correspondence between the longitudinal acceleration generated in the vehicle 2 and the amount of movement of the display object 60 in the longitudinal direction is set in advance.

<Modification 2>
In the first embodiment, the rotation angle is determined based on the position of the driver's viewpoint. However, the rotation angle may be determined based on the position of the head 4 instead of the position of the viewpoint. This is because the head 4 moves with the viewpoint. The position of the head 4 is an example of a viewpoint related part.

<Modification 3>
Further, the rotation angle may be determined using the line-of-sight direction instead of the viewpoint position. In order to detect the line-of-sight direction, the reference point and moving point of the eye are detected as described above. Therefore, the position of the viewpoint is detected even when the rotation angle is determined using the line-of-sight direction. When the line of sight is used, the rotation angle of the display object 60 is determined based on the amount of change in the line of sight.

<Modification 4>
In the embodiment described above, the display object 60 is divided into the A group and the B group. However, in addition to this, a C group may be set. Group C is a group that does not move at all even if the position of the viewpoint-related portion changes or the acceleration generated in the vehicle changes.

  For example, among the information displayed on the display 10, an image that transmits information to the driver depending on whether it is turned on or off can be set as the C group. Specifically, an indicator such as a seat belt warning lamp can be set as the C group. As another viewpoint, an image having a display position at a corner or a peripheral edge of the display 10 can be set as the C group. This is because these positions are not originally highly visible to the driver, and therefore, the visibility is not lowered by moving, and it is difficult to give the driver a sense of realism even if moved.

<Modification 5>
In the first embodiment, the coefficient by which the change angle θ of the position of the driver's viewpoint is multiplied with respect to the display object 60 of the A group may be set to zero. That is, in the first embodiment, the A group does not have to be moved even if the position of the viewpoint related part changes. Also in the second embodiment, the movement amount of the A group may be zero regardless of the acceleration generated in the vehicle.

<Modification 6>
Instruments displayed on the vehicle display device may not include instruments such as the speedometer dial 61 and the tachometer dial 62. For example, the vehicle display device may be embodied as a navigation device.

<Modification 7>
The yaw angular acceleration may be detected as the lateral acceleration of the vehicle 2. The yaw angular acceleration can be obtained, for example, by differentiating the yaw rate detected by the yaw rate sensor.

<Modification 8>
In the above-described embodiment, the road 63 is shown as the display object 60 belonging to the B group. The road 63 has a longer depth shape, that is, a shape in the front-rear direction than the display object 60 belonging to the A group. Thus, the depth shape long display object 60, by setting the rotation center C _B forward, it is possible to provide a particularly realistic or driving feeling to the driver. The display object 60 having a long depth shape is not limited to the road 63. For example, a river may be used as the display object 60.

<Modification 9>
In the second embodiment, either the rotation angle of the A group or the rotation angle of the B group may be determined by the same method as in the first embodiment.

<Modification 10>
The first, in the second embodiment, the rotation center C _A at the time of rotational movement of the A group, is a plane speedometer dial 61 and tachometer dial 62 is a display object 60 in the A group is located The meter placement plane 67 was set. However, the rotation center C _A, may be disposed forward of the display object 60 of the A group. In other words, the display object 60 of the A group may be arranged farther than the center of rotation C _A.

The Figure 15, the rotation center C _A is shown the example in between the display object 60 and the driver. In the example shown in FIG. 15, when the change angle θ of the driver's viewpoint is .theta.6, a display object 60 in the A group, is the angle .theta.6 rotated about the C _A, change the angle of the driver's viewpoint θ is θ7 At this time, the display object 60 of the A group is rotated by an angle θ7 with C _A as the rotation center. Therefore, in the example shown in FIG. 15, even if the position of the driver's head 4 changes, the display object 60 faces the driver's face.

When the display object 60 of the A group is thus rotated by the angles θ6 and θ7, the rotational movement amount of the display object 60 of the B group is an angle obtained by multiplying the angles θ6 and θ7 by a coefficient larger than 1. To do. The rotation center C _{B of the} B group can be arranged between the driver and the display object 60 of the B group, similarly to the rotation center C _A of the A group.

<Modification 11>
In the first embodiment, both the A group and the B group are moved in the changing direction of the viewpoint related part. However, the B group may be moved in a direction opposite to the direction of change of the viewpoint related part. FIG. 16 shows an example in which the display object 60 is moved in the direction opposite to the change direction of the driver's viewpoint. Display object 60 is rotated moving the center of rotation C _B, the display object 60 in FIG. 16 and belongs to the B group.

In this modified example 11, the movement amount of the display image, the same segment G as the first embodiment, the amount of change in the angle between the line segment H toward the center of rotation C _B from the display object 60. In the state before the movement indicated by the broken line, the angle between the line segment G and the line segment H is zero. In contrast, in the state after the head 4 indicated by the solid line has moved, the angle between the line segment G and the line segment H is θ7 + θ8. Therefore, the amount of change in angle is also θ7 + θ8.

  In the eleventh modification, the rotational movement amount of the display object 60 of the A group can be calculated by the calculation method described in the above embodiments and modifications. That is, in the modification 11, the rotational movement amount of the display object 60 of the A group can be a rotational movement amount obtained by multiplying θ7 that is the change angle of the driver's viewpoint by a positive coefficient smaller than 1. . In addition, the display object 60 of the A group may not be moved regardless of the viewpoint change angle of the driver. In any case, the rotational movement amount of the display image of the B group is larger than the rotational movement amount of the display image of the A group.

<Modification 12>
In the modification 11, the display object 60 of the group B has been described as being rotated in the direction opposite to the direction of change of the viewpoint related part. Moreover, in 2nd Embodiment, the display object 60 of B group was rotated and moved according to the acceleration of the left-right direction of the vehicle 2 was demonstrated. And if the acceleration of the left-right direction of the vehicle 2 arises, the position of a viewpoint relevant part will change with the acceleration. Therefore, the display object of group B may be moved in the direction opposite to the acceleration in the left-right direction of the vehicle 2. FIG. 16 that has already been described can also be seen as an example in which the display object 60 of group B is moved in the direction opposite to the acceleration in the left-right direction of the vehicle 2.

  Also in this modified example 12, the amount of movement of the display image is the amount of change in the angle between the line segment G and the line segment H. In the modification 12, the rotational movement amount of the display object 60 of the group A can be calculated by the calculation method described in the second embodiment and the modification. For example, in the modified example 12, the rotational movement amount of the display object 60 of the A group is the direction of acceleration of the vehicle 2 in the left-right direction of the vehicle 2 and can be estimated from the acceleration in the left-right direction of the vehicle 2. The amount of rotational movement can be less than the change angle of the viewpoint. Further, the display object 60 of the A group can be prevented from moving regardless of the acceleration in the left-right direction of the vehicle 2. In any case, the rotational movement amount of the display image of the B group is larger than the rotational movement amount of the display image of the A group.

<Modification 13>
So far, the rotational movement and the linear movement in the front-rear direction have been described as the movement mode of the display object 60. In addition to this, the display object 60 can be used as a movement mode, and a slide movement in the left-right direction can be adopted instead of the rotation movement. As can be seen from FIG. 15 and FIG. 16, when the rotation center C is far from or ahead of the display object 60 as viewed from the driver, the display object 60 moves in the left-right direction as viewed from the driver. Therefore, instead of the rotational movement, a horizontal sliding movement can be adopted.

<Modification 14>
Dividing display images into Group A and Group B, moving the display position of these display images according to the amount of change in the position of the viewpoint-related part, providing a realistic image to the driver who views the display 10 it can. However, it is also assumed that there are drivers who do not like realistic images. Therefore, the user may be able to switch whether or not to execute the process of moving the display image in accordance with the amount of change in the position of the viewpoint related part.

  Further, it is assumed that the amount of movement of the A group and the amount of movement of the B group are different for each user. Therefore, the movement amount of the A group and the movement amount of the B group with respect to the amount of change in the position of the viewpoint-related part may be set by the user for each group or for the A group and the B group together. .

1: Vehicle display device 2: Vehicle 3: Steering 4: Head 10: Display (Display unit) 20: Image data storage unit 30: Gaze detection device 31: Camera 40: Arithmetic device 41: Image data acquisition unit 42: Measurement value Acquisition unit 43: Driver information acquisition unit 44: Drawing processing unit 50: Virtual space 60: Display object 61: Speedometer dial 62: Tachometer dial 63: Road 64: Car 65: Lighting 66: Camera 67: Meter arrangement Plane 70: Acceleration sensor 100: Display device for vehicle 140: Computing device 144: Drawing processing unit 145: Vehicle acceleration acquisition unit

Claims (13)

A display unit (10) installed in the vehicle;
A driver information acquisition unit (43) for acquiring a position of a viewpoint-related part that is a part that moves together with the viewpoint of the driver or the viewpoint;
An image data acquisition unit (41) for acquiring image data for creating a display image to be displayed on the display unit;
A drawing processing unit (44) for creating the display image based on the image data and displaying the display image on the display unit;
The image data is divided into movement suppression image data and movement promotion image data,
The drawing processing unit determines the amount of movement of the display image created from the movement promotion image data based on the amount of change in the position of the viewpoint related part, and the display image created from the movement suppression image data The display apparatus for vehicles which makes it larger than the movement amount. A display unit (10) installed in the vehicle;
A vehicle acceleration acquisition unit (145) for acquiring acceleration generated in the vehicle;
An image data acquisition unit (41) for acquiring image data for creating a display image to be displayed on the display unit;
A drawing processing unit (144) for creating the display image based on the image data and displaying the display image on the display unit;
The image data is divided into movement suppression image data and movement promotion image data,
The drawing processing unit determines the amount of movement of the display image created from the movement promotion image data based on the acceleration acquired by the vehicle acceleration acquisition unit, and the display image created from the movement suppression image data The display apparatus for vehicles which makes it larger than the movement amount.   The drawing processing unit is configured to create the display image by rotating the display object represented by the image data, and the rotational movement amount of the display object is calculated from the viewpoint-related portion of the image data. The vehicle display device according to claim 1, wherein the vehicle display device is determined based on an angle change amount of the line segment (G) toward the rotation center.   The drawing processing unit determines a rotational movement amount of the movement-suppressed image data by multiplying an angle change amount of a line segment from the viewpoint-related portion toward the rotation center of the image data by a coefficient that is smaller than 1 and equal to or larger than 0. The vehicle display device according to claim 3, wherein the rotational movement amount of the movement promotion image data is determined by multiplying the angle change amount by a coefficient larger than one.   The drawing processing unit sets the angle change amount of the line segment from the viewpoint-related part to the rotation center of the image data as the rotation movement amount of the movement-suppressed image data, and multiplies the angle change amount by a coefficient larger than 1. The vehicle display device according to claim 3, wherein a rotational movement amount of the movement promotion image data is determined.   The said drawing process part makes the movement amount of the said display image produced from movement suppression image data set to 0 regardless of the variation | change_quantity of the position of the said viewpoint relevant part, The any one of Claims 1-5 Vehicle display device. The amount of movement is a change amount of an angle between a line segment (G) from the viewpoint-related portion toward the rotation center of the image data and a line segment (H) from the image data toward the rotation center,
The drawing processing unit moves the movement promotion image data in a direction opposite to a change direction of the position of the viewpoint related part, while the movement suppression image data moves in a change direction of the position of the viewpoint related part, or The movement-suppressed image data is not moved even if the position of the viewpoint-related part changes, so that the amount of movement of the display image created from the movement-promoting image data is generated from the movement-suppressed image data. The vehicular display device according to any one of claims 3 to 5, wherein the vehicular display device is larger than the movement amount. The vehicle acceleration acquisition unit acquires acceleration in the width direction of the vehicle,
The drawing processing unit is configured to rotate the display object represented by the image data to create the display image, and the vehicle acceleration acquisition unit detects the rotational movement amount of the display object. The vehicle display device according to claim 2, wherein the vehicle display device is determined based on an acceleration in a width direction of the vehicle.   The vehicle display device according to claim 2, wherein the drawing processing unit sets a movement amount of the display image created from movement-suppressed image data to 0 regardless of the acceleration acquired by the vehicle acceleration acquisition unit. The amount of movement includes a line segment (G) from the viewpoint-related part, which is a part that moves together with the viewpoint of the driver, to the rotation center of the image data, and a line segment (H) from the image data to the rotation center. Change in angle between and
The drawing processing unit moves the movement promotion image data in a direction opposite to the acceleration in the width direction of the vehicle, while the movement suppression image data moves in the direction of acceleration in the width direction of the vehicle, or The movement suppression image data is not moved regardless of the acceleration of the vehicle, so that the movement amount of the display image created from the movement promotion image data is larger than the movement amount of the display image created from the movement suppression image data. The vehicle display device according to claim 8.   The drawing processing unit is configured to arrange the display object in a virtual space and generate an image of the display object viewed from a virtual viewpoint as the display image, and the display object represented by the movement suppression image data The rotation center of an object is set in any one of Claims 3-5, 7, 8, and 10 set to the said virtual viewpoint side rather than the rotation center of the said display target object which the said movement promotion image data represents. Vehicle display device.   The vehicle display device according to claim 11, wherein the drawing processing unit has a depth that is longer than the display target represented by the movement-suppressed image data.   The said drawing process part displays the said display image produced from the said movement suppression image data always before this rather than the said display image produced from the said movement promotion image data. Vehicle display device.

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