WO2022024962A1 - Head-up display device - Google Patents
Head-up display device Download PDFInfo
- Publication number
- WO2022024962A1 WO2022024962A1 PCT/JP2021/027459 JP2021027459W WO2022024962A1 WO 2022024962 A1 WO2022024962 A1 WO 2022024962A1 JP 2021027459 W JP2021027459 W JP 2021027459W WO 2022024962 A1 WO2022024962 A1 WO 2022024962A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- display area
- display
- line
- image
- head
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 claims abstract description 10
- 230000008859 change Effects 0.000 claims description 32
- 238000000034 method Methods 0.000 claims description 16
- 230000000295 complement effect Effects 0.000 claims description 15
- 230000004397 blinking Effects 0.000 claims description 9
- 210000000887 face Anatomy 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 9
- 238000012937 correction Methods 0.000 claims description 6
- 230000004044 response Effects 0.000 claims description 4
- 230000006866 deterioration Effects 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 abstract description 22
- 238000010586 diagram Methods 0.000 description 34
- 238000012545 processing Methods 0.000 description 11
- 230000009467 reduction Effects 0.000 description 9
- 239000003086 colorant Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 206010047571 Visual impairment Diseases 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000011946 reduction process Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000004438 eyesight Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003945 visual behavior Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
- 230000016776 visual perception Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
Definitions
- the present invention relates to a head-up display (HUD) device or the like mounted on a vehicle such as an automobile.
- HUD head-up display
- the visibility of the image is usually designed to be substantially constant over the entire display area.
- the above-mentioned matters are taken into consideration at the time of design, because the invention in consideration of the degree of uniformity has been proposed.
- FIG. 10 of Patent Document 1 shows an example in which the HUD device simultaneously displays each image (virtual image) of a navigation arrow, a warning display indicating the approach of a person, and a vehicle speed display.
- this image is referred to as an existence notification image.
- the present inventor investigated a HUD device capable of simultaneously displaying a plurality of various images (virtual images) in a fairly wide area, and as a result, obtained the following new findings.
- a viewer who looks forward and looks into the distance is blocked by an image (virtual image) by the HUD device that is displayed so as to overlap the actual view (foreground) in front, and the visibility of the foreground is reduced, for example.
- the burden on the viewer including the psychological burden
- that the image (virtual image) is deprived of visual attention and the viewer's visual attention to the foreground is reduced, or that the image (virtual image) is annoying. May increase.
- the display may hinder the visibility of the actual scene such as the foreground, deprive the viewer of attention to the actual scene, or lengthen the vehicle, for example.
- the fact that it causes stress during time driving is an important matter related to the technical significance of the HUD device, and there is room for improvement in this regard.
- a viewer who looks forward while looking far away is blocked by an image (virtual image) by the HUD device displayed so as to overlap the actual view (foreground) in front, for example, in the foreground.
- the burden on the viewer is that the visibility is reduced, the image (virtual image) is deprived of visual attention, and the viewer's visual attention to the foreground is reduced, or the image (virtual image) is annoying. It is an object of the present invention to provide a HUD device capable of reducing (including a psychological burden).
- the head-up display (HUD) device is An image display unit that displays an image and By projecting the light of the image displayed by the image display unit toward the projected member, the viewer can visually recognize the virtual image of the image within a virtual display area in the real space in front of the viewer.
- Optical system and A control unit that controls the display of the image in the image display unit, Have The direction of the line of sight toward the front of the viewer with a depression angle of 0 degrees, starting from the eye position of the viewer or the reference position corresponding to the eye position, is defined as the first line-of-sight direction.
- the direction of the line of sight of the viewer at a depression angle m degree (m is an integer larger than 0) inclined from the first line of sight is defined as the second line of sight.
- the direction perpendicular to the first line-of-sight direction and along the line segment connecting the left and right eyes of the viewer is defined as the left-right direction.
- the direction along the first line-of-sight direction and the line segment orthogonal to the left-right direction is the vertical direction or the height direction, the direction away from the ground or the surface corresponding to the ground in the real space is upward, and the approaching direction is downward.
- the control unit With the virtual display area as a reference, the first display area on the side closer to the first line-of-sight direction and the first display area with the intersection of the virtual display area and the second line-of-sight direction as a reference. By dividing into a second display area other than the above, the first display area and the second display area are set. Control is performed to make the attractiveness of the first display object displayed in the first display area lower than the attractiveness of the second display object displayed in the second display area.
- a virtual display area (which may be simply referred to as a display area in the present specification) by the HUD device in the front real space is referred to as a first display area and a second display area.
- the attractiveness of the display target is reduced.
- the display by the HUD device does not interfere with the visual behavior of the background (actual scene) during driving, and for example, it is possible to reduce annoyance and stress.
- the first display area is a virtual display area where an image (virtual image) that is considered to be often overlapped (superimposed) on a relatively distant real scene is arranged.
- an image virtual image
- it is said that it is important to keep an eye on the near and surrounding areas and maintain a wide field of vision while looking into the distance, but especially when driving for a long time, it takes a long time to pay attention to the distance. Therefore, the visibility of the actual view (foreground) in the distance is an important matter for safe driving.
- the attractiveness of the image (virtual image) is reduced to hinder the visibility of the background, excessively deprive the viewer of the background, or to the background. Avoid causing discomfort and stress, and ensure comfortable driving.
- the first display area is represented by the angle formed by the depression angle of the line of sight of the viewer (for example, the direction of the line of sight when looking down at an object and the horizontal plane of the eye height position (or a position corresponding thereto)).
- the first display area and the second display area are The entire line segment extending in the left-right direction through the intersection of the virtual display area and the second line-of-sight direction and crossing the virtual display area is divided as a boundary line and described above.
- the first display area is located above the second display area.
- a part of a line segment that passes through the intersection of the virtual display area and the second line-of-sight direction, extends in the left-right direction, and crosses the virtual display area is divided as a boundary line.
- the first display area is located above a part of the second display area.
- the partial arc or curve passing through the intersection of the virtual display area and the second line-of-sight direction is divided as a boundary line, and the first display area is located above the second display area. You may.
- the boundary separating the first and second display areas is determined with reference to the position of the intersection between the display area and the second line-of-sight direction, and as the embodiment, for example, the display is performed through the intersection.
- the boundary lines There are cases where all of the line segments that cross the area to the left and right are boundary lines, some of them form (a part of) the boundary line, and partial arcs and curves that pass through the intersections are the boundary lines.
- the second display area exists below the first display area, which is a range that reduces the attractiveness.
- the first display area is located above the second display area.
- the first display area is defined as the upper range in the display area (the range related to the visual perception of a relatively distant actual scene).
- the control unit In the first display area, a difference in attractiveness is provided according to the position in the vertical direction, and the attractiveness when the display object is arranged on the upper side is made lower than the attractiveness when the display object is arranged on the lower side. May be good.
- the attractiveness when displaying (arranging) the display object on the upper side is lower than the attractiveness when displaying (arranging) the display object on the lower side, and the distance is farther.
- the change in the attractiveness (degree of attraction) in the vertical direction may be continuous or gradual.
- the control unit When the display object is displayed across the first display area and the second display area, the overall attractiveness of the display object may be reduced.
- a display object displayed across the first and second display areas (for example, for navigation, which is displayed so as to be superimposed on the road surface or is shown to be superimposed on the road surface).
- Arrows for navigation, arrows for navigation, etc. shown in the form of floating in the air the overall attractiveness is reduced.
- the first display area Since it is also arranged in the first display area, it is preferable to enhance the visibility of the background (actual view, foreground) at a relatively distant place for the viewer, and it is attractive in each of the first and second display areas. If there is a difference in the degree of the above, the viewer may feel unnatural and the visual burden may increase. Therefore, it is decided to reduce the attractiveness as a whole.
- the head-up display may be mounted on the vehicle.
- the head-up display (HUD) device is used for in-vehicle use. For example, it is possible to obtain an effect that the eyes are less likely to get tired when driving for a long time.
- control unit Correction to prevent the first line-of-sight direction from fluctuating according to the diagonally upward deviation when the direction toward which the front end of the vehicle faces deviates diagonally upward from the standard state.
- the process may be carried out.
- an example of a preferable countermeasure is shown when the direction in which the front end of the vehicle faces is shifted diagonally upward from the standard state.
- the pitching angle of the vehicle may change depending on the balance of the occupants of the vehicle and the balance of luggage.
- the vehicle may be a truck, and there may be a large amount of load on the rear carrier, and the front side of the truck may face diagonally upward (upward) from the standard state (normal state).
- the display area virtually provided in the real space in front of the viewer (driver) also moves to the upper side, and in this case, the line of sight of the viewer (driver) also faces upward and farther away. It will be easy to see. In this case, it can be said that it is preferable to widen the first display area to make it easier to see a distant actual scene. However, if no measures are taken, the size of the first and second display areas (or the ratio of each area) remains the same, and the entire display area is only moved upward.
- the front end of the vehicle is oriented upward, it is preferable to suppress the upward deviation of the first line-of-sight direction, which is a reference for determining the first display area, for example. Try to maintain a state of depression angle of 0 degrees.
- a process (correction process) for correcting the upward deviation and suppressing the fluctuation in the first line-of-sight direction so as to approach the depression angle of 0 degrees is performed. It should be noted that how much the direction of the front end of the vehicle is displaced diagonally upward can be determined based on, for example, information from a pitch angle sensor provided on the vehicle.
- the display area When the upward shift in the first line-of-sight direction is suppressed (preferably maintained at a depression angle of 0 degrees), the display area has moved upward, so that the position of the intersection with the second line-of-sight direction is located. Moves relatively downwards. Since the intersection position is also an important factor for determining the position of the boundary line of each of the first and second display areas, as the intersection position moves downward, the first display area expands, and therefore, a distant actual view. The range that makes it easier to see (the range of reduced attractiveness) is expanded, and the effect of maintaining a state in which the viewer (driver) can easily see the actual view in front of or around (in other words, maintaining good visibility, etc.) is effective. can get.
- the control unit When the speed of the vehicle is slow, the first display area may be moved downward as compared with the case where the speed is high.
- the gaze point (gaze position) of the viewer (driver) tends to be lower than when the vehicle is at high speed.
- the display area of is also moved to the lower side.
- the first display area which is a range that reduces the attractiveness, can be appropriately set.
- the control unit When the speed of the vehicle is slow, the first display area may be expanded downward as compared with the case where the speed is high.
- the gaze point (gaze position) of the viewer (driver) tends to be lower than when the vehicle is at high speed. Expand (expand) the display area of.
- the first display area which is a range that reduces the attractiveness, can be appropriately set.
- the position on the upper side of the first display area does not change, even if the line of sight of the viewer (driver) is directed upward, the direction of the line of sight (line of sight) turned upward is used. Has a first display area, and can maintain good visibility of the actual scene.
- the control unit When the vehicle makes a right turn and at least one of the left turns, the first display area may be expanded in the left-right direction, expanded to the right when turning right, and expanded to the left when turning left. ..
- the line of sight moves to the right or left, so that the first display area also moves to the right or left accordingly. Move to the left. This makes it possible to appropriately set the first display area, which is a range that reduces the attractiveness even when turning right or left.
- the optical system has a curved mirror, and the curved mirror rotates in response to a change in the eye position of the viewer, and the position of the virtual display area in the real space changes in the vertical direction accordingly. Due to the vertical change of the virtual display area, Or, By the vertical change of the virtual display area and the vertical change of the reference position in the first line-of-sight direction, The vertical position of the intersection of the virtual display area and the second line-of-sight direction may change, thereby adjusting the area of the first display area.
- the size (size, area) of the first display area can be adaptively adjusted according to the eye position in the vertical direction (height direction) of the viewer.
- a curved mirror (concave mirror, etc.) included in the optical system rotates according to a change in the eye position, and is automatically adjusted so that the display light is incident on the eye position.
- the line of sight line of sight
- the line of sight looks far ahead (changes in the direction in which the depression angle decreases), so the position of the display area also moves upward, and the eye position changes.
- the display area also changes to be located in the middle of each of the above positions.
- the height position in the first line-of-sight direction is fixed (for example, fixed to the height of the intermediate eye position so as not to change)
- the height position of the display area is changed.
- the position of the intersection changes, and as a result, the first display area, which is a range that reduces the attractiveness, expands or contracts, and its size is automatically adjusted.
- the range of the first display area is automatically and appropriately adjusted according to the eye position.
- the height position in the first line-of-sight direction is fixed, but the height in the first line-of-sight direction is also set to the actual eye height position according to the actual eye height position. It can also be moved as appropriate. In this case, the variation in the position of the intersection tends to be larger. Also in this case, the size (area) of the first display area changes according to the eye position, as in the above example (an example of fixing the height position in the first line-of-sight direction).
- the first display area related to the visual recognition of the distant actual scene is It may not be set (the area of the first display area becomes zero).
- the display area and the second line-of-sight direction are caused by a change in the vertical direction of the display area, or by a combination of the change in the vertical direction of the display area and the change in the vertical direction of the reference position in the first line-of-sight direction.
- the position of the intersection with and in the vertical direction is changed, whereby the area (size) of the first display area can be automatically adjusted.
- Reducing the attractiveness of the display object is Low brightness, as well as, To reduce the size, as well as, To make the contrast low, as well as, Changing the color from the primary color to a light color, as well as, In the blinking state, slow down the blinking speed or prevent it from blinking, as well as, To shorten the display duration for the period when the same display object is displayed, as well as, Regarding the display of moving images, at least one of slowing down, setting a low cycle, and making a still image, as well as, Hiding or reducing the high-profile part of the display object, as well as, Changing the appearance of the display object, It may be realized by at least one of.
- the eleventh aspect illustrates a method of reducing the attractiveness of a display target (display object). For example, by using them in combination as appropriate, the effect of reducing the attractiveness can be enhanced. In addition, by adopting an appropriate method of reducing the attractiveness according to the display mode of the display object, the driving situation, etc., the attractiveness should be adjusted to an appropriate degree while maintaining the visibility of the display object to some extent. Can be done.
- the color of the display object is regarded as the opposite color including the complementary color to the color of the actual scene on which the display object is superimposed.
- it is realized by reducing the brightness, reducing the size, hiding or reducing the high-profile part of the display object, and changing the appearance of the display object. May be done.
- the color (color) of the display object is set to the opposite color including the complementary color to the color of the actual scene of the background, the contrast is kept high to some extent, and the image by the HUD device is used.
- the visibility of (virtual image) is secured to some extent. If the display itself becomes invisible or difficult to see, the meaning of displaying the virtual image is lost. Therefore, the visibility of the image (virtual image) is secured to some extent by the visual contrast.
- the image (imaginary image) when the actual scene is a dark color close to the primary color, the image (imaginary image) is difficult to see, but if the opposite color including complementary colors is used, the contrast is high and the image (imaginary image) can be visually recognized.
- the viewer looks away from the actual scene a complementary color afterimage occurs, but if the image (imaginary image) is a complementary color system, even if a complementary color afterimage occurs, it does not cause any discomfort because it is the same color system. In terms of points, the effect of reducing visual stress can also be expected.
- FIG. 1A is a diagram showing an example in which a display area is divided into first and second display areas and the attractiveness of an image (virtual image) in the first display area is reduced
- FIG. 1B is a diagram. It is a figure which shows the example which reduced the attractiveness of the navigation arrow which is displayed over each of the 1st and 2nd display areas and is displayed so as to be superimposed on the road surface.
- FIG. 2 is a diagram showing an example of reducing the attractiveness of a display object (virtual image).
- FIG. 3A is a diagram showing an example in which the attractiveness is changed according to a position in the vertical direction in the first display area
- FIG. 3B is a diagram showing another example.
- FIG. 4A is a diagram showing an example of the position of the first display area when traveling at a standard speed
- FIG. 4B is a diagram showing the first display area downward when traveling at a low speed
- FIG. 4 (C) is a diagram showing an example of moving, and is a diagram showing an example of expanding the first display area downward when traveling at a low speed
- 5 (A) and 5 (B) are diagrams showing an example in which the first display area is set in a part of the upper side of the display area
- FIGS. 5 (C) and 5 (D) are the first when turning right. It is a figure which shows the example which expanded the display area of.
- FIG. 6A is a diagram showing an example in which the first display area is set with the height position in the first line-of-sight direction as the midpoint position of the eye box
- FIG. 6B is a diagram showing the first line-of-sight direction. It is a figure which shows the example which sets the 1st display area with the height position of the eye as the height position of an eye.
- FIG. 7A is a diagram showing an example in which the first and second display areas are divided by the boundary line of the partial arc
- FIG. 7B is a diagram showing a straight line segment that crosses the display area to the left and right. It is a figure which shows the example which separates each of the 1st and 2nd display areas.
- FIG. 8 is a diagram showing an example in which a first display area of a quadrangle is set in a part of the upper side of the display area.
- FIG. 9A shows an example in which a first display surface area corresponding to a first display area and a second display surface area corresponding to a second display area are set on the display surface of the image display unit.
- FIG. 9B is a diagram illustrating a process of reducing attractiveness when an image (real image) of a display object is arranged in each of the first and second display surface areas.
- 10 (A) to 10 (D) show the first and second display areas in the case where the height position in the first line-of-sight direction is fixed and the height position of the display area is changed according to the eye position.
- 11 (A) to 11 (D) show the first and second display areas in the case where the height position in the first line-of-sight direction is fixed and the height position of the display area is changed according to the eye position. It is a figure which shows the other example of a setting. 12 (A) to 12 (C) show the first display area by performing correction processing for suppressing the first line-of-sight direction from facing upward when the front end of the vehicle faces upward. It is a figure which shows the example which adjusts the size. It is a figure which shows the configuration example inside the HUD apparatus. It is a figure which shows the example of the system configuration of the HUD apparatus. It is a flowchart which shows the procedure example which sets each of the 1st and 2nd display areas.
- the "virtual display area” may be simply referred to as a "display area”.
- FIG. 1A is a diagram showing an example in which a display area is divided into first and second display areas and the attractiveness of an image (virtual image) in the first display area is reduced
- FIG. 1B is a diagram. It is a figure which shows the example which reduced the attractiveness of the navigation arrow which is displayed over each of the 1st and 2nd display areas and is displayed so as to be superimposed on the road surface.
- the width direction of the vehicle 1 (or the left-right direction which is the direction along the line connecting the left and right eyes of a person) is the X direction, and the direction along the vertical line of the road surface 300 is up and down.
- the direction or the height direction is defined as the upward direction in the direction away from the road surface 300 and the downward direction in the direction approaching the road surface 300.
- the direction orthogonal to each of the X and Y directions is defined as the front-rear direction (Z direction), the direction in which the vehicle 1 moves forward is defined as forward, and the direction in which the vehicle 1 moves backward is defined as rearward.
- the virtual display area 100 by the HUD device 10 in the real space in front of the vehicle 1 is the first display area 101 and the second display area. Divide into 102.
- the first display area 101 is located above the second display area 102.
- the attractiveness of the image (virtual image) of the display target (display object) is reduced.
- the display by the HUD device 10 does not interfere with the visual behavior of the background (actual scene) during driving, and for example, the annoyance is reduced and the stress is reduced. be able to.
- Vehicle (own vehicle) 1 is traveling on a road with good visibility at a speed of 60 km / h.
- a virtual display area in other words, a virtual image display surface 100 having a rectangular outer shape in a plan view is erected with respect to a road surface (a surface corresponding to the ground) 300.
- An image (virtual image) of the display object is displayed on this display area (virtual image display surface).
- the vehicle FC1 moving ahead and the scenery of the mountains as a distant view can be seen as the background (actual view) of the first display area 101.
- the HUD device 10 displays an image (virtual image) CU1 of a warning mark so as to be superimposed on the vehicle FC1 in the first display area 101, and also has an image of a navigation arrow (in a mode of floating in the air).
- Virtual image) NV10 and NV20 are displayed.
- an image (virtual image) NV30 of a display (destination display) showing a destination is displayed overlaid on a mountain in a distant view.
- this (V1) indicates that it is the first virtual image displayed in the first display area 101.
- a vehicle speed display SP of "60 km / h" is shown on the front side. Although it is described as SP (V2) in the figure, (V2) indicates that it is a second virtual image displayed in the second display area 102.
- the vehicle FC2 (located in front of the vehicle FC1) traveling ahead is shown by a broken line as an actual view (background) overlapping the second display area 102.
- This vehicle FC2 does not exist in an actual driving scene, but is described as a comparative example for the purpose of explaining the process of reducing the attractiveness of the display object, and is a virtual one, so it is displayed by a broken line. is doing.
- an image (virtual image) that is considered to be often overlapped (superimposed) on a relatively distant real scene of the virtual display area 100 by the HUD device 10 is arranged. It is an area.
- the alert mark, the arrow, and the destination display are each referred to as a display target or a display object.
- the number of display objects is large, and the image (virtual image) showing these display objects may have a color close to the primary color, a high brightness, or a large size. Then, the attractiveness of the display object itself is too high, and it attracts the attention of the viewer (driver) excessively, which hinders the visibility of the background, deprives the background of attention, or the background. It may cause discomfort and stress.
- the attractiveness of each of the images (virtual image) CU1, NV10, NV20, and NV30 is lowered to hinder or visually recognize the background. It is designed to ensure comfortable driving by avoiding excessive attention to the background of the person and causing discomfort with the background and causing stress.
- the first display area 101 shows a range that reduces the attractiveness of the image (virtual image). The settings of the first and second display areas 101 and 102 will be described later.
- FIG. 2 is a diagram showing an example of reducing the attractiveness of a display object (virtual image).
- the vehicles FC1 and FC2 are both red. Since the vehicle FC2 located on the front side is determined to have a higher risk, it is preferable to display the caution mark (second virtual image) CU2 with increased attractiveness. For example, by using blue or green (opposite colors including complementary colors, etc.), processing such as improving color contrast, making exclamation marks stand out, maximizing brightness, increasing size, etc. ( Processing S1) can improve the attractiveness.
- the attention mark (first virtual image) CU1 superimposed on the vehicle FC1 located farther away is reduced in attractiveness so as not to interfere with the visibility of the vehicle FC1 which is the actual scene.
- the visibility becomes too low and it becomes difficult to see, there is no point in displaying the display, so the visibility must be ensured to some extent.
- the color contrast is improved and the caution mark (first virtual image) CU1 is ensured to some extent. ..
- the exclamation mark which is useful for alerting but gives a visually complicated impression, is deleted (the appearance is changed by hiding it), the brightness is reduced, and the size is reduced.
- At least one of the methods is adopted to reduce the attractiveness of the display object as a whole. As a result, it is possible to realize a display that can be visually recognized, does not attract excessive attention, and does not give stress to the viewer.
- the above method is an example and is not limited to this.
- reducing the attractiveness of a display object means, for example, lowering the brightness, reducing the size, and making the contrast (including color contrast and brightness contrast) low.
- at least one of slowing down, slowing down, and making a still image, hiding or reducing the high-profile part of the display object, and the appearance of the display object It may be realized by at least one of changing.
- lowering the attractiveness of the display object suppresses the deterioration of visibility by making the color of the display object the opposite color including the complementary color to the color of the actual scene on which the display object is superimposed.
- it is realized by reducing the brightness, reducing the size, hiding or reducing the high-profile part of the display object, and changing the appearance of the display object. May be good.
- the color (color) of the display object is set to the opposite color including the complementary color to the color of the actual scene of the background, the contrast is kept high to some extent, and the visibility of the image (virtual image) by the HUD device is set. Secure to some extent. If the display itself becomes invisible or difficult to see, the meaning of displaying the virtual image is lost. Therefore, the visibility of the image (virtual image) is secured to some extent by the visual contrast.
- the image (imaginary image) when the actual scene is a dark color close to the primary color, the image (imaginary image) is difficult to see, but if the opposite color including complementary colors is used, the contrast is high and the image (imaginary image) can be visually recognized.
- the viewer looks away from the actual scene a complementary color afterimage occurs, but if the image (imaginary image) is a complementary color system, even if a complementary color afterimage occurs, it does not cause any discomfort because it is the same color system. In terms of points, the effect of reducing visual stress can also be expected.
- FIG. 1B the virtual image 71 of the navigation arrow, which is a display object, is displayed across the first display area 101 and the second display area 102. In this case, the overall attractiveness of the virtual image 71 of the arrow is lowered.
- the virtual image 71 of this arrow includes a tip portion 71a displayed in the first display area 101 and a base end portion 71b displayed in the second display area 102.
- it is also arranged in the first display area 101, it is preferable to improve the visibility of the background (actual view, foreground) at a relatively distant place for the viewer.
- the degree of attractiveness is provided in the first and second display areas 100 and 101, the viewer may feel unnatural and the visual burden may increase. Therefore, it is decided to reduce the attractiveness as a whole.
- FIG. 3A is a diagram showing an example in which the attractiveness is changed according to a position in the vertical direction in the first display area
- FIG. 3B is a diagram showing another example.
- the change in the attractiveness (degree of attraction) in the vertical direction may be continuous (example of FIG. 3 (A)) or gradual (example of FIG. 3 (B)). ..
- the first display area 101 is divided into three blocks 101-1 to 101-3, and the upper block has a lower attractiveness.
- FIG. 4A is a diagram showing an example of the position of the first display area when traveling at a standard speed
- FIG. 4B is a diagram showing the first display area downward when traveling at a low speed
- FIG. 4 (C) is a diagram showing an example of moving, and is a diagram showing an example of expanding the first display area downward when traveling at a low speed.
- the first display area 101 When traveling at a standard speed, as shown in FIG. 4A, the first display area 101 is set above the display area 100. Since the driver's line of sight tends to move downward when traveling at low speed, the first display area 101 is moved downward in FIG. 4B in accordance with this. Further, in FIG. 4C, the first display area 101 is expanded (expanded) downward. This makes it possible to appropriately set the first display area according to the operating speed.
- FIG. 5 (A) and 5 (B) are diagrams showing an example in which the first display area is set in a part of the upper side of the display area
- FIGS. 5 (C) and 5 (D) are the first when turning right. It is a figure which shows the example which expanded the display area of.
- a partial (local) arc shape as a part of a circle is referred to as a partial arc.
- a first display area 101 is provided at a position substantially at the center of the upper side of the display area 100, partitioned by a boundary line of a partial arc.
- the first display area 101 has a fan shape (or a partial circle).
- a first display area 101 having a quadrangular shape is provided at a position substantially at the center of the upper side of the display area 100.
- FIGS. 5C and 5D the first display area 101 of FIGS. 5A and 5B is expanded to the right (right side) in accordance with the movement of the line of sight to the right side. There is. This makes it possible to display a virtual image that does not interfere with the visibility of the background even when turning right. Therefore, the visual and psychological burden on the driver can be reduced.
- FIG. 6A is a diagram showing an example in which the first display area is set with the height position in the first line-of-sight direction as the midpoint position of the eye box
- FIG. 6B is a diagram showing the first line-of-sight direction. It is a figure which shows the example which sets the 1st display area with the height position of the eye as the height position of an eye.
- the HUD device 10 includes, for example, a HUD device main body 20 and an I / O interface 30.
- the HUD device 10 is housed inside the dashboard 5 of the vehicle 1.
- the camera 50 that captures the eyes (or pupils) in order to detect the viewpoint (including the position of the eyes and the direction of the line of sight) of the viewer (driver or the like) is also a dashboard. It is arranged inside 5.
- the display light 40 is emitted (projected) from the HUD device main body 20 toward the windshield 2 which is a projected member.
- a part of the display light 40 is reflected by the windshield 2, heads toward the eyes (viewpoint) A of the viewer (driver or the like), and forms an image in front of the vehicle 1 to form an image in the display area 100.
- (Virtual image) is displayed.
- the display area 100 can also be referred to as a virtual image display surface.
- the display area (virtual image display surface) 100 is virtually provided in front of the vehicle 1 corresponding to the display area of the display surface of the screen (reference numeral 160 in FIG. 15), for example.
- the distance of the display area 100 from the viewpoint 4 (or the reference position corresponding to this) is set to L1.
- This L1 may be referred to as a virtual image display distance.
- the virtual image display distance L1 is appropriately adjusted by, for example, moving an optical system (for example, a lens arranged in the light projecting unit 155 of FIG. 13) arranged inside the HUD device along the optical axis. be able to.
- the display area 101 is erected slightly inclined (substantially perpendicular) to the road surface 300.
- this is only an example.
- the inclination angle of the display area 101 with respect to the road surface 300 is appropriately adjusted according to the degree of the inclination. be able to.
- the line of sight of the (person) is approximately parallel to the ground or a surface equivalent thereto (the road surface, etc., and in the case of a simulation device or a game device, the floor surface, etc. of the installation location), and faces straight forward. It is presumed that he is looking far away (or with a slight glance). Therefore, by ensuring good visibility of the foreground in this state, the psychological burden on the viewer can be effectively reduced (reduced).
- the direction of the line of sight toward the front of the viewer with a depression angle of 0 degrees, starting from the "eye position" of the viewer (driver) or the "reference position corresponding to the eye position", is defined as the first line-of-sight direction.
- the direction of the line of sight of the viewer at a depression angle m degree (m is an integer larger than 0) inclined from the first line-of-sight direction 700 is defined as the second line-of-sight direction.
- the center position 205 in the height direction of the eye box 200 (the height with respect to the road surface 300 is set to h1) is the “reference position corresponding to the eye position”, and the eye.
- the line-of-sight direction 700 represented by a line segment extending forward from the center position 205 of the box 200 is the first line-of-sight direction.
- the line-of-sight direction represented by a line segment inclined by the depression angle Ra from the first line-of-sight direction 700 is defined as the second line-of-sight direction U10.
- the center of the display area 100 provided in the front real space is P
- the line segment connecting the center position 205 of the eyebox 200 and the center P of the display area is in the line-of-sight direction.
- U20 is attached.
- the line-of-sight direction U20 is inclined downward by an angle ⁇ v from the first line-of-sight direction 700.
- Q1 be the intersection of the second line-of-sight direction U10 and the display area 100.
- the first display area 100 on the side closer to the first line-of-sight direction 700 and the second display area 102 other than the first display area can be divided into a first display area 102.
- a display area and a second display area can be set.
- the control unit (reference numeral 120 in FIG. 13) of the HUD device 10 displays the attractiveness of the first display object (virtual image) displayed in the first display area 101 in the second display area 102. Controls to make it lower than the attractiveness of the display object (virtual image) of.
- the starting point of the first line-of-sight direction 710 is the position of the actual eye (viewpoint).
- the second line-of-sight direction U11 is a direction inclined downward by the depression angle Ra with respect to the first line-of-sight direction 710.
- Other configurations are the same as in FIG. 6 (A).
- FIG. 7A is a diagram showing an example in which the first and second display areas are divided by the boundary line of the partial arc
- FIG. 7B is a diagram showing a straight line segment that crosses the display area to the left and right. It is a figure which shows the example which separates each of the 1st and 2nd display areas.
- FIG. 7A with reference to the point Q0 indicating the position of the first line-of-sight direction 700 or 710, the point Q1 is set downward by a distance corresponding to the depression angle Ra in a plan view from the viewer, and this point is taken.
- a circle 800 passing through Q1 is drawn, the area where the circle 800 and the display area 100 overlap is referred to as a first display area 101, and the area below the first display area 101 is referred to as a second display area 102.
- the first display area 101 of FIG. 7A has the shape of a partial circle previously shown in FIG. 5A.
- the point Q2 is taken downward by a distance corresponding to the depression angle Ra in a plan view from the viewer with respect to the point Q0, passes through this point Q2, and passes through the point Q2, and is the first display area 101 of the quadrangle.
- a line segment is drawn to the left and right, and the entire upper area partitioned by the line segment is referred to as a first display area, and the lower area thereof is referred to as a second display area 102.
- the first display area 101 of FIG. 7B corresponds to the previous example of FIG. 4A.
- FIG. 8 is a diagram showing an example in which a first display area of a quadrangle is set in a part of the upper side of the display area.
- a quadrangle rectangle
- the coordinates of the four vertices of this quadrangle are (X1, Y1), (X2, Y2), (X3, Y3), (X4, Y4).
- the area where the quadrangle and the display area 100 overlap is defined as the first display area 101.
- a part of the second area 102 is located below the first display area 101. Therefore, even in the example of FIG. 8, it can be said that the first display area 101 is above the second display area 102.
- the first display area 101 of FIG. 8 corresponds to the previous example of FIG. 5 (B).
- FIG. 9A shows an example in which a first display surface area corresponding to a first display area and a second display surface area corresponding to a second display area are set on the display surface of the image display unit.
- FIG. 9B is a diagram illustrating a process of reducing attractiveness when an image (real image) of a display object is arranged in each of the first and second display surface areas.
- FIGS. 9A and 9B the directions corresponding to each of the X, Y, and Z directions in the real space are described as X', Y', and Z'.
- the display area on the display surface PL of the display panel 143 which corresponds to the display area 100 in the real space, is described as 100', and this display area 100'is described as the display surface area 100'.
- the area corresponding to the first display area 101 is referred to as the first display surface area 101'
- the area corresponding to the second display area 102 is referred to as the second display surface area 102'.
- the direction corresponding to the first viewpoint direction is described as 700'or 710'.
- the distance on the display surface PL which corresponds to the distance corresponding to the depression angle Ra, is described as Ra'.
- the display surface PL of the display panel 143 has a first display surface area 101'corresponding to the first display area 101 described above, and a first display surface area 101'.
- a second display surface area 102'corresponding to the display area 102 of 2 is set.
- the setting method is the same as the setting example in the real space described above.
- a point Q1' that is separated by Ra' is set below the vertical direction (Y'direction), passes through this Q1', and crosses the display surface area 100'in the horizontal direction.
- the display surface area 100' is divided into two by the line segment.
- the upper area is referred to as a first display surface area 101', and the lower area is referred to as a second display surface area 102'.
- the control unit controls the display object (real image or image) arranged in the first display surface area 101'to reduce the attractiveness.
- the image NV'(R) of the arrow and the vehicle speed display SP'(R) are shown as display objects.
- (R) shows a real image. Which image is to be placed in the first display surface area 101'can be determined, for example, by comparing the coordinates of each image with the coordinates of the first and second display surface areas 101'and 102'. Is.
- the center point of the image NV'(R) of the arrow is Q11'
- the center point of the vehicle speed display SP'(R) is Q12'.
- the distances D1 and D2 between the center points Q11'and Q12'and the points Q0'are obtained, D1 and D2 are compared, and the image having the shorter distance is placed in the first display surface area 101', and the distance is obtained.
- the longer image may be placed in the second display surface area 102'.
- the distances D3 and D4 in the vertical direction from the line segment L10 extending in the horizontal direction through the point Q0' may be detected.
- FIG. 10 (A) to 10 (D) show the first and second display areas in the case where the height position in the first line-of-sight direction is fixed and the height position of the display area is changed according to the eye position. It is a figure which shows an example of a setting.
- the size (size, area) of the first display area can be adaptively adjusted according to the eye position in the vertical direction (height direction) of the viewer.
- a curved mirror (concave mirror or the like, reference numeral 133 in FIG. 13) included in the optical system rotates in response to a change in the eye position (4a to 4c), and the eye. It is automatically adjusted so that the display light is incident on the position.
- the line of sight line of sight
- the line of sight changes in the direction of looking down (changes in the direction of increasing the depression angle), so that the position of the display area 100 also moves downward (display).
- the position of the upper end of the region 100 becomes H1), and when the eye position becomes lower (lower side), the line of sight (line of sight) looks far ahead (changes in the direction in which the depression angle decreases).
- the position of the display area also moves to the upper side (the position of the upper end of the display area 100 is H3), and when the eye position is in the middle position between the upper side and the lower side, the display area 100 also moves to each of the above. It changes to be located in the middle of the position (the position of the upper end of the display area 100 is H2).
- the height position of the first line-of-sight direction 700 (710) is fixed, for example (here, it is fixed to the height of the intermediate eye position 4b so as not to be changed). do.
- the height position of the first line-of-sight direction 700 (710) is fixed to the intermediate eye position 4b.
- the actual eye positions are the middle eye position 4b in FIG. 4 (B), the lowest eye position 4a in FIG. 4 (C), and the highest eye position 4c in FIG. 4 (D). It becomes.
- the position (height position) of the display area 100 in the height direction changes according to the eye position.
- the position of the intersection Q1 between the second line-of-sight direction U12 and the display area 100 changes according to the change in the height position of the display area 100, and as a result, the first display area is a range in which the attractiveness is reduced.
- the size of 101 is automatically adjusted as it expands or contracts.
- the direction of the line of sight (line of sight) is lowered and there is a tendency to look near, so that the first display area 101 related to the visual recognition of the distant real scene is It automatically narrows.
- the range of the display area of 1 is also automatically expanded. In the case of FIG. 4C, it is considered that the viewer is most likely to see far away. Therefore, in the case of FIG. 4C, the range of the first display area 101 is maximized. In this way, the range (size, area) of the first display area 101 is automatically and appropriately adjusted according to the eye position.
- FIG. 11 (A) to 11 (D) show the first and second display areas in the case where the height position in the first line-of-sight direction is fixed and the height position of the display area is changed according to the eye position. It is a figure which shows the other example of a setting.
- the height position in the first line-of-sight direction was fixed, but in the example of FIG. 11, the height in the first line-of-sight direction is actually the same as the actual height position of the eyes. Move as appropriate so that it is at eye level.
- the height position of the first line-of-sight direction 700 (710) is the actual eye position (4b, 4a, 4c). It is adjusted so that.
- the fluctuation of the position of the intersection Q1 between the second line-of-sight direction U30 and the display area 100 tends to be larger.
- the size (area) of the first display area 101 according to the eye position is the same as the example of FIG. 10 (an example of fixing the height position in the first line-of-sight direction 700 (710)). Changes.
- the eye position becomes high (the eye position is at the highest position 4c) as shown in FIG. 11C, and the direction of the line of sight looks down.
- the first display area 101 related to the visual recognition of the distant real scene is not set (in other words, the area of the first display area becomes zero).
- the first change is due to a change in the display area 100 in the vertical direction (change in height position), or a change in the display area 100 in the vertical direction (change in height position).
- the vertical position (height position) of the intersection Q1 between the display area 100 and the second line-of-sight direction in combination with the vertical change (height position change) of the reference position in the line-of-sight direction 700 (710).
- the area (size) of the first display area 101 can be automatically adjusted. This allows preferable size adjustment of the first display area 101.
- FIG. 12 (A) to 12 (C) show the first display area by performing correction processing for suppressing the first line-of-sight direction from facing upward when the front end of the vehicle faces upward. It is a figure which shows the example which adjusts the size.
- FIG. 12 shows an example of a preferable countermeasure when the direction in which the front end portion of the vehicle 1 faces is shifted diagonally upward from the standard state.
- the pitching angle of vehicle 1 may change depending on the balance of the occupants of vehicle 1 and the balance of luggage.
- the vehicle may be a truck, and there may be a large amount of load on the rear carrier, and the front side of the truck may face diagonally upward (upward) from the standard state (normal state).
- the display area virtually provided in the real space in front of the viewer (driver) also moves to the upper side, and in this case, the line of sight of the viewer (driver) also faces upward and farther away. It will be easy to see. In this case, it can be said that it is preferable to widen the first display area to make it easier to see a distant actual scene. However, if no measures are taken, the size of the first and second display areas 101 and 102 (or the ratio of each area) remains the same, and the entire display area 100 is only moved upward.
- FIG. 11A shows a standard state (pitch angle 0 degrees)
- FIG. 11B shows a state deviated from the standard state (pitch angle ⁇ ).
- the size of the first display area 101 and the size of the second display area 102 are the same.
- a process is performed to correct the upward deviation and suppress the fluctuation in the first line-of-sight direction so as to approach the depression angle of 0 degrees (pitch angle of 0 degrees).
- the pitch angle is corrected to be the same as when the pitch angle is 0 degrees. It should be noted that how much the direction of the front end of the vehicle is displaced diagonally upward can be determined based on, for example, information from a pitch angle sensor or the like provided on the vehicle.
- the position of the intersection Q1 is also an important factor for determining the position of the boundary line of the first and second display areas 101 and 102, the position of the intersection Q1 moves downward to the first display area 101. Therefore, the range that makes it easier to see the actual view in the distance (the range of reduced attractiveness) is expanded, and the viewer (driver) maintains a state in which it is easy to see the actual view in front of and around (in other words, good visibility). Can be maintained, etc.).
- FIG. 13 is a diagram showing an example of the internal configuration of the HUD device.
- the main body 20 of the HUD device 10 includes a display control unit (control unit) 120, an image display unit (display unit) 140, a light projecting unit 155, a screen 129, a curved mirror (concave mirror, etc.) 133, and a curved mirror. It has an actuator 131 and.
- the image display unit 140 includes an image generation unit 141 and a display panel 143 (including a display surface PL).
- the display control unit (control unit) 120 is appropriately supplied with eye position information, rotation angle information of the curved mirror 133, and the like.
- FIG. 14 is a diagram showing an example of the system configuration of the HUD device.
- the HUD device 10 includes an I / O interface 30, a processor (control device) 160, an image processing unit 200, an image display unit 140, and a storage unit 300.
- the I / O interface 30 includes a road information database 403, a vehicle position detection unit 405, an external sensor 407, a line-of-sight direction detection unit 409, an eye position detection unit 411, a portable information terminal 413, and a vehicle ECU 415. , Is connected.
- the vehicle ECU 415 is appropriately provided with necessary information from the pitch angle sensor 417, the steering angle sensor 419 (necessary for the processing shown in FIGS. 5C and 5D), and the like.
- the I / O interface 420 is connected to the external communication connection device 420.
- the storage unit 300 stores (mounts) the attractiveness / visibility change module 326.
- the attractiveness / visibility change module 326 includes an application area setting unit (attractiveness reduction range determination unit) 327 of the attractiveness reduction process and a content determination unit (attractability reduction mode determination unit) 329 of the attractiveness reduction process.
- the processor (control device) 160 operates according to the application area setting unit (attractability reduction range determination unit) 327 of the attractiveness reduction process, whereby a first display area setting unit (not shown) as a functional block is constructed.
- the processor (control device) 160 or the image processing unit 140 operates according to the content determination unit (attraction reduction mode determination unit) 329 of the attraction reduction processing, so that the attraction reduction processing unit (not shown) as a functional block. ) Is constructed.
- FIG. 15 is a flowchart showing a procedure example for setting the first and second display areas.
- step S110 information useful for setting the first display area is acquired. For example, acquisition of rotation angle information of the concave mirror (curved surface mirror) (step S111), acquisition of eye position (eye height) information, and the like may be executed.
- step S120 the range of the first display area (the area to which the attractiveness reduction processing is applied) is set.
- This step S120 may include, for example, setting a first display area (step S121) based on the table data in which the angle of the curved surface mirror and the range of the first display area are associated with each other. ..
- the area close to the first line-of-sight direction with respect to the eye position is the first. It may be included to set in the display area of (step S122).
- step S123 may be included.
- a viewer who looks forward while looking into a distance looks at an image (virtual image) by a HUD device displayed so as to overlap the actual view (foreground) in front of the viewer. Is blocked, for example, the visibility of the foreground is reduced, the visual attention to the image (virtual image) is deprived, the visual attention to the foreground of the viewer is reduced, or the image (virtual image) is annoying. It is possible to effectively reduce the burden on the viewer (including the psychological burden) such as that.
- the HUD device is to be interpreted in a broad sense, and can be interpreted including a game device and a simulation device.
- terms such as a visual observer and a driver can be interpreted in a broad sense, and a vehicle can also be broadly interpreted as a term meaning a vehicle, for example.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Instrument Panels (AREA)
Abstract
The present invention provides a head-up display (HUD) device that alleviates a burden (including a psychological burden) that is imposed on a viewer in certain situations such as when the viewer is looking forward to see into the distance but the line of sight is obstructed by an image (virtual image) produced by the HUD device superimposed onto the front real view (foreground), consequently, the visibility of the foreground is reduced, visual attention is diverted to the image (virtual image) and visual attention on the foreground by the viewer is thus lowered, or the image (virtual image) feels annoying, for example. The HUD device includes an image display unit (140), an optical system (129, 133), and a control unit (120), wherein the control unit (120) sets a first display area (101) and a second display area (102) in a virtual display area (100) of a real segment in front of the viewer, and lowers the visual attraction of a display object (NV10 to NV30, CU1) displayed in the first display area (101).
Description
本発明は、例えば自動車等の車両に搭載されるヘッドアップディスプレイ(HUD)装置等に関する。
The present invention relates to a head-up display (HUD) device or the like mounted on a vehicle such as an automobile.
従来のHUD装置では、画像(虚像)の視認性については、表示領域の全域にわたって略一定となるように設計されるのが通常である。例えば、均斉度を考慮した発明が提案されていることからも、上記の事項が設計時に考慮されていることが推定され得る。
In the conventional HUD device, the visibility of the image (virtual image) is usually designed to be substantially constant over the entire display area. For example, it can be presumed that the above-mentioned matters are taken into consideration at the time of design, because the invention in consideration of the degree of uniformity has been proposed.
例えば、特許文献1の図10には、HUD装置が、ナビゲーション用矢印、人の接近を示す注意喚起表示、及び車速表示の各画像(虚像)を同時に表示する例が示されている。特許文献1では、この画像(虚像)を存在通知画像と称している。
For example, FIG. 10 of Patent Document 1 shows an example in which the HUD device simultaneously displays each image (virtual image) of a navigation arrow, a warning display indicating the approach of a person, and a vehicle speed display. In Patent Document 1, this image (virtual image) is referred to as an existence notification image.
また、この特許文献1では、例えば、[0062]において誘目性について言及されている。但し、「人等が進入するまでの時間が短くなるのに応じて、存在通知画像を、誘目性の高い画像に変更してもよい」と記載されるだけである。例えば、複数の画像(虚像)について、均一な誘目性の設計に代えて誘目性に差を設ける設計をする点、あるいは、一部の表示対象(表示オブジェクト)の誘目性を低下させる点等については、特に言及されていない。
Further, in this Patent Document 1, for example, [0062] refers to attractiveness. However, it is only stated that "the existence notification image may be changed to an image with high attractiveness as the time until a person or the like enters becomes shorter". For example, for a plurality of images (virtual images), a point of designing a difference in attractiveness instead of a uniform design of attractiveness, or a point of reducing the attractiveness of some display objects (display objects), etc. Is not specifically mentioned.
本発明者は、複数の多様な画像(虚像)を、かなり広範囲の領域に同時に表示できるHUD装置について検討し、その結果、以下の新規な知見を得た。
The present inventor investigated a HUD device capable of simultaneously displaying a plurality of various images (virtual images) in a fairly wide area, and as a result, obtained the following new findings.
例えば、遠方を見通すようにして前方に視線を向ける視認者が、前方の実景(前景)に重なって表示されるHUD装置による画像(虚像)によって視線が遮られ、例えば、前景の視認性が低下する、画像(虚像)に視覚的注意が奪われ、視認者の前景への視覚的注意が低下する、あるいは、画像(虚像)を煩わしく感じる、といった視認者の負担(心理的な負担を含む)が増える場合があり得る。
For example, a viewer who looks forward and looks into the distance is blocked by an image (virtual image) by the HUD device that is displayed so as to overlap the actual view (foreground) in front, and the visibility of the foreground is reduced, for example. The burden on the viewer (including the psychological burden) that the image (virtual image) is deprived of visual attention and the viewer's visual attention to the foreground is reduced, or that the image (virtual image) is annoying. May increase.
視認者に有用な情報を提示して利便性を向上させようとするHUD装置において、その表示が、前景等の実景の視認を妨げたり、実景への注意を奪ったり、あるいは、車両を例えば長時間運転しているときのストレスの原因となったりする、ということは、HUD装置の技術的意義にも関係する重要事項であり、この点については改善の余地がある。
In a HUD device that presents useful information to the viewer to improve convenience, the display may hinder the visibility of the actual scene such as the foreground, deprive the viewer of attention to the actual scene, or lengthen the vehicle, for example. The fact that it causes stress during time driving is an important matter related to the technical significance of the HUD device, and there is room for improvement in this regard.
本発明は、例えば、遠方を見通すようにして前方に視線を向ける視認者が、前方の実景(前景)に重なって表示されるHUD装置による画像(虚像)によって視線が遮られ、例えば、前景の視認性が低下すること、画像(虚像)に視覚的注意が奪われ、視認者の前景への視覚的注意が低下すること、あるいは、画像(虚像)を煩わしく感じること、といった視認者の負担(心理的な負担を含む)を軽減し得るHUD装置を提供することを目的とする。
In the present invention, for example, a viewer who looks forward while looking far away is blocked by an image (virtual image) by the HUD device displayed so as to overlap the actual view (foreground) in front, for example, in the foreground. The burden on the viewer is that the visibility is reduced, the image (virtual image) is deprived of visual attention, and the viewer's visual attention to the foreground is reduced, or the image (virtual image) is annoying. It is an object of the present invention to provide a HUD device capable of reducing (including a psychological burden).
本発明の他の目的は、以下に例示する態様及び最良の実施形態、並びに添付の図面を参照することによって、当業者に明らかになるであろう。
Other objects of the invention will be apparent to those skilled in the art by reference to the embodiments exemplified below and the best embodiments, as well as the accompanying drawings.
以下に、本発明の概要を容易に理解するために、本発明に従う態様を例示する。
Hereinafter, in order to easily understand the outline of the present invention, an embodiment according to the present invention will be illustrated.
第1の態様において、ヘッドアップディスプレイ(HUD)装置は、
画像を表示する画像表示部と、
前記画像表示部が表示する前記画像の光を被投影部材に向けて投影することで、視認者の前方の実空間における仮想的な表示領域内で、前記視認者に前記画像の虚像を視認させる光学系と、
前記画像表示部における前記画像の表示を制御する制御部と、
を有し、
前記視認者の目位置、又は前記目位置に相当する基準位置を起点とする、俯角0度の前記視認者の前方に向かう視線の方向を第1の視線方向とし、
前記第1の視線方向から傾斜した俯角m度(mは0より大きい整数)の、前記視認者の視線の方向を第2の視線方向とし、
前記第1の視線方向に直交し、前記視認者の左右の目を結ぶ線分に沿う方向を左右方向とし、
前記第1の視線方向及び前記左右方向に直交する線分に沿う方向を上下方向又は高さ方向とし、前記実空間における地面又は地面に相当する面から離れる方向を上方向、近づく方向を下方向とするとき、
前記制御部は、
前記仮想的な表示領域を、前記仮想的な表示領域と前記第2の視線方向との交点を基準として、前記第1の視線方向に近い側の第1の表示領域と、第1の表示領域以外の第2の表示領域とに分けることで、前記第1の表示領域及び前記第2の表示領域を設定し、
前記第1の表示領域に表示される第1の表示オブジェクトの誘目性を、前記第2の表示領域に表示される第2の表示オブジェクトの誘目性よりも低くする制御を行う。 In the first aspect, the head-up display (HUD) device is
An image display unit that displays an image and
By projecting the light of the image displayed by the image display unit toward the projected member, the viewer can visually recognize the virtual image of the image within a virtual display area in the real space in front of the viewer. Optical system and
A control unit that controls the display of the image in the image display unit,
Have,
The direction of the line of sight toward the front of the viewer with a depression angle of 0 degrees, starting from the eye position of the viewer or the reference position corresponding to the eye position, is defined as the first line-of-sight direction.
The direction of the line of sight of the viewer at a depression angle m degree (m is an integer larger than 0) inclined from the first line of sight is defined as the second line of sight.
The direction perpendicular to the first line-of-sight direction and along the line segment connecting the left and right eyes of the viewer is defined as the left-right direction.
The direction along the first line-of-sight direction and the line segment orthogonal to the left-right direction is the vertical direction or the height direction, the direction away from the ground or the surface corresponding to the ground in the real space is upward, and the approaching direction is downward. When
The control unit
With the virtual display area as a reference, the first display area on the side closer to the first line-of-sight direction and the first display area with the intersection of the virtual display area and the second line-of-sight direction as a reference. By dividing into a second display area other than the above, the first display area and the second display area are set.
Control is performed to make the attractiveness of the first display object displayed in the first display area lower than the attractiveness of the second display object displayed in the second display area.
画像を表示する画像表示部と、
前記画像表示部が表示する前記画像の光を被投影部材に向けて投影することで、視認者の前方の実空間における仮想的な表示領域内で、前記視認者に前記画像の虚像を視認させる光学系と、
前記画像表示部における前記画像の表示を制御する制御部と、
を有し、
前記視認者の目位置、又は前記目位置に相当する基準位置を起点とする、俯角0度の前記視認者の前方に向かう視線の方向を第1の視線方向とし、
前記第1の視線方向から傾斜した俯角m度(mは0より大きい整数)の、前記視認者の視線の方向を第2の視線方向とし、
前記第1の視線方向に直交し、前記視認者の左右の目を結ぶ線分に沿う方向を左右方向とし、
前記第1の視線方向及び前記左右方向に直交する線分に沿う方向を上下方向又は高さ方向とし、前記実空間における地面又は地面に相当する面から離れる方向を上方向、近づく方向を下方向とするとき、
前記制御部は、
前記仮想的な表示領域を、前記仮想的な表示領域と前記第2の視線方向との交点を基準として、前記第1の視線方向に近い側の第1の表示領域と、第1の表示領域以外の第2の表示領域とに分けることで、前記第1の表示領域及び前記第2の表示領域を設定し、
前記第1の表示領域に表示される第1の表示オブジェクトの誘目性を、前記第2の表示領域に表示される第2の表示オブジェクトの誘目性よりも低くする制御を行う。 In the first aspect, the head-up display (HUD) device is
An image display unit that displays an image and
By projecting the light of the image displayed by the image display unit toward the projected member, the viewer can visually recognize the virtual image of the image within a virtual display area in the real space in front of the viewer. Optical system and
A control unit that controls the display of the image in the image display unit,
Have,
The direction of the line of sight toward the front of the viewer with a depression angle of 0 degrees, starting from the eye position of the viewer or the reference position corresponding to the eye position, is defined as the first line-of-sight direction.
The direction of the line of sight of the viewer at a depression angle m degree (m is an integer larger than 0) inclined from the first line of sight is defined as the second line of sight.
The direction perpendicular to the first line-of-sight direction and along the line segment connecting the left and right eyes of the viewer is defined as the left-right direction.
The direction along the first line-of-sight direction and the line segment orthogonal to the left-right direction is the vertical direction or the height direction, the direction away from the ground or the surface corresponding to the ground in the real space is upward, and the approaching direction is downward. When
The control unit
With the virtual display area as a reference, the first display area on the side closer to the first line-of-sight direction and the first display area with the intersection of the virtual display area and the second line-of-sight direction as a reference. By dividing into a second display area other than the above, the first display area and the second display area are set.
Control is performed to make the attractiveness of the first display object displayed in the first display area lower than the attractiveness of the second display object displayed in the second display area.
第1の態様では、前方の実空間における、HUD装置による仮想的な表示領域(本明細書では、単に、表示領域と称することがある)を、第1の表示領域と第2の表示領域とに分け、第1の表示領域では、表示対象(表示オブジェクト)の誘目性を低下させる。これによって、HUD装置による表示が、運転時の背景(実景)の視認行動の妨げにならないようにし、例えば、煩わしさを低減したり、ストレスを低減したりすることができる。
In the first aspect, a virtual display area (which may be simply referred to as a display area in the present specification) by the HUD device in the front real space is referred to as a first display area and a second display area. In the first display area, the attractiveness of the display target (display object) is reduced. As a result, the display by the HUD device does not interfere with the visual behavior of the background (actual scene) during driving, and for example, it is possible to reduce annoyance and stress.
ここで、第1の表示領域は、仮想的な表示領域の、比較的遠方の実景に重ねられる(重畳される)ことが多いと考えられる画像(虚像)が配置される領域である。車両の運転に際しては、遠くを見通しつつ、近方や周囲にも目を配り、視野を広く維持することが重要と言われるが、特に、長時間の運転では、遠方に注意を払う時間が長いことから、遠方の実景(前景)の視認性は安全運転にとって重要な事項である。この点を考慮し、第1の表示領域において、画像(虚像)の誘目性を低下させて、背景の視認を妨げたり、視認者の背景への注意を過度に奪ったり、背景との間で違和感を生じさせてストレスを与えたりすることないようにし、快適な運転を確保できるようにする。
Here, the first display area is a virtual display area where an image (virtual image) that is considered to be often overlapped (superimposed) on a relatively distant real scene is arranged. When driving a vehicle, it is said that it is important to keep an eye on the near and surrounding areas and maintain a wide field of vision while looking into the distance, but especially when driving for a long time, it takes a long time to pay attention to the distance. Therefore, the visibility of the actual view (foreground) in the distance is an important matter for safe driving. In consideration of this point, in the first display area, the attractiveness of the image (virtual image) is reduced to hinder the visibility of the background, excessively deprive the viewer of the background, or to the background. Avoid causing discomfort and stress, and ensure comfortable driving.
第1の表示領域は、視認者の視線の俯角(一例として、物を見下ろしたときの視線の方向と目の高さ位置(あるいはこれに相当する位置)の水平面等とのなす角で表すことが可能である)の、例えば0度~m度(mは0より大きい整数であり、例えばm=2)の範囲に相当する表示範囲であり、この範囲では、視認者(人)の視線は、地面又はこれに相当する面(路面等であり、またシミュレーション装置やゲーム装置の場合は設置場所の床面等も該当する)に略平行であり、まっすぐに前を向いて(あるいは、少しだけ目線を落として)遠方を見ている状態であろうと推測される。よって、この状態における、前景の視認性を良好に確保することで、視認者の心理的負担等を、効果的に軽減(低減)することが可能である。
The first display area is represented by the angle formed by the depression angle of the line of sight of the viewer (for example, the direction of the line of sight when looking down at an object and the horizontal plane of the eye height position (or a position corresponding thereto)). Is possible), for example, a display range corresponding to a range of 0 to m degrees (m is an integer larger than 0, for example, m = 2), and in this range, the line of sight of the viewer (person) is , Approximately parallel to the ground or the equivalent surface (road surface, etc., and in the case of simulation equipment and game equipment, the floor surface, etc. of the installation location), facing straight forward (or slightly) It is presumed that he is looking far away (looking down). Therefore, by ensuring good visibility of the foreground in this state, it is possible to effectively reduce (reduce) the psychological burden on the viewer.
第1の態様に従属する第2の態様において、
前記第1の表示領域と前記第2の表示領域は、
前記仮想的な表示領域と前記第2の視線方向との交点を通り、前記左右方向に延び、かつ前記仮想的な表示領域を横断する線分の全部を境界線として分けられており、かつ前記第1の表示領域は前記第2の表示領域の上側に位置する、
又は、
前記仮想的な表示領域と前記第2の視線方向との交点を通り、前記左右方向に延び、かつ前記仮想的な表示領域を横断する線分の一部を境界線として分けられており、かつ前記第2の表示領域の一部の上側に前記第1の表示領域が位置する、
又は、
前記仮想的な表示領域と前記第2の視線方向との交点を通る部分円弧、又は曲線を境界線として分けられており、かつ前記第1の表示領域は前記第2の表示領域の上側に位置してもよい。 In the second aspect, which is subordinate to the first aspect,
The first display area and the second display area are
The entire line segment extending in the left-right direction through the intersection of the virtual display area and the second line-of-sight direction and crossing the virtual display area is divided as a boundary line and described above. The first display area is located above the second display area.
Or,
A part of a line segment that passes through the intersection of the virtual display area and the second line-of-sight direction, extends in the left-right direction, and crosses the virtual display area is divided as a boundary line. The first display area is located above a part of the second display area.
Or,
The partial arc or curve passing through the intersection of the virtual display area and the second line-of-sight direction is divided as a boundary line, and the first display area is located above the second display area. You may.
前記第1の表示領域と前記第2の表示領域は、
前記仮想的な表示領域と前記第2の視線方向との交点を通り、前記左右方向に延び、かつ前記仮想的な表示領域を横断する線分の全部を境界線として分けられており、かつ前記第1の表示領域は前記第2の表示領域の上側に位置する、
又は、
前記仮想的な表示領域と前記第2の視線方向との交点を通り、前記左右方向に延び、かつ前記仮想的な表示領域を横断する線分の一部を境界線として分けられており、かつ前記第2の表示領域の一部の上側に前記第1の表示領域が位置する、
又は、
前記仮想的な表示領域と前記第2の視線方向との交点を通る部分円弧、又は曲線を境界線として分けられており、かつ前記第1の表示領域は前記第2の表示領域の上側に位置してもよい。 In the second aspect, which is subordinate to the first aspect,
The first display area and the second display area are
The entire line segment extending in the left-right direction through the intersection of the virtual display area and the second line-of-sight direction and crossing the virtual display area is divided as a boundary line and described above. The first display area is located above the second display area.
Or,
A part of a line segment that passes through the intersection of the virtual display area and the second line-of-sight direction, extends in the left-right direction, and crosses the virtual display area is divided as a boundary line. The first display area is located above a part of the second display area.
Or,
The partial arc or curve passing through the intersection of the virtual display area and the second line-of-sight direction is divided as a boundary line, and the first display area is located above the second display area. You may.
第2の態様では、第1、第2の各表示領域を分ける境界は、表示領域と第2の視線方向との交点の位置を基準として定まり、その態様としては、例えば、交点を通って表示領域を左右に横断する線分の全部が境界線となる場合、その一部が境界線(の一部)を構成する場合、交点を通る部分円弧や曲線が境界線となる場合等がある。
In the second aspect, the boundary separating the first and second display areas is determined with reference to the position of the intersection between the display area and the second line-of-sight direction, and as the embodiment, for example, the display is performed through the intersection. There are cases where all of the line segments that cross the area to the left and right are boundary lines, some of them form (a part of) the boundary line, and partial arcs and curves that pass through the intersections are the boundary lines.
何れの場合でも、誘目性を低下させる範囲である第1の表示領域の下側には、第2の表示領域の少なくとも一部が存在する。相対的にいえば、第1の表示領域は、第2の表示領域の上側に位置する、ということになる。
In any case, at least a part of the second display area exists below the first display area, which is a range that reduces the attractiveness. Relatively speaking, the first display area is located above the second display area.
上述のとおり、誘目性を低下させて背景(実景)の視認性の妨げとならないようにして、比較的遠方の実景の視認性を確保することが、視認者の視覚的な負担軽減につながることから、第1の表示領域を、表示領域内の上側の範囲(比較的遠方の実景の視認に関係する範囲)としている。
As described above, ensuring the visibility of a relatively distant actual scene by reducing the attractiveness so as not to interfere with the visibility of the background (actual scene) leads to a reduction in the visual burden on the viewer. Therefore, the first display area is defined as the upper range in the display area (the range related to the visual perception of a relatively distant actual scene).
第1又は第2の態様に従属する第3の態様において、
前記制御部は、
前記第1の表示領域内において、上下方向の位置に応じて誘目性に差を設け、表示オブジェクトを上側に配置する場合の誘目性を、下側に配置する場合の誘目性よりも低くしてもよい。 In the third aspect, which is subordinate to the first or second aspect,
The control unit
In the first display area, a difference in attractiveness is provided according to the position in the vertical direction, and the attractiveness when the display object is arranged on the upper side is made lower than the attractiveness when the display object is arranged on the lower side. May be good.
前記制御部は、
前記第1の表示領域内において、上下方向の位置に応じて誘目性に差を設け、表示オブジェクトを上側に配置する場合の誘目性を、下側に配置する場合の誘目性よりも低くしてもよい。 In the third aspect, which is subordinate to the first or second aspect,
The control unit
In the first display area, a difference in attractiveness is provided according to the position in the vertical direction, and the attractiveness when the display object is arranged on the upper side is made lower than the attractiveness when the display object is arranged on the lower side. May be good.
第3の態様では、第1の表示領域内で、表示オブジェクトを上側に表示(配置)する場合の誘目性を、下側に表示(配置)する場合の誘目性よりも低くし、より遠くを見る場合ほど、表示オブジェクト自体の注目度を減らして、視認者が、遠くの実景をはっきりと見えるようにする。視認者のストレスを効果的に軽減する一つの好適な例である。上下方向における誘目性(誘目度)の変化は、連続的なものであってもよく、段階的なものであってもよい。
In the third aspect, in the first display area, the attractiveness when displaying (arranging) the display object on the upper side is lower than the attractiveness when displaying (arranging) the display object on the lower side, and the distance is farther. The more you look, the less attention you have to the display object itself, so that the viewer can clearly see the distant view. This is a good example of effectively reducing the stress of the viewer. The change in the attractiveness (degree of attraction) in the vertical direction may be continuous or gradual.
第1乃至第3の何れか1つの態様に従属する第4の態様において、
前記制御部は、
表示オブジェクトが、前記第1の表示領域及び前記第2の表示領域にまたがって表示される場合、その表示オブジェクトの全体の誘目性を低くしてもよい。 In the fourth aspect, which is subordinate to any one of the first to third aspects,
The control unit
When the display object is displayed across the first display area and the second display area, the overall attractiveness of the display object may be reduced.
前記制御部は、
表示オブジェクトが、前記第1の表示領域及び前記第2の表示領域にまたがって表示される場合、その表示オブジェクトの全体の誘目性を低くしてもよい。 In the fourth aspect, which is subordinate to any one of the first to third aspects,
The control unit
When the display object is displayed across the first display area and the second display area, the overall attractiveness of the display object may be reduced.
第4の態様では、第1、第2の各表示領域にまたがって表示される表示オブジェクト(例えば、路面に重畳されるように表示される、あるいは、路面に重畳されるように示されるナビゲーション用の矢印や空中に浮かぶ態様で示されるナビゲーション用の矢印等)については、その全体の誘目性を低下させる。
In the fourth aspect, a display object displayed across the first and second display areas (for example, for navigation, which is displayed so as to be superimposed on the road surface or is shown to be superimposed on the road surface). (Arrows for navigation, arrows for navigation, etc. shown in the form of floating in the air), the overall attractiveness is reduced.
第1の表示領域にも配置されることから、視認者の比較的遠方における背景(実景、前景)の視認性を高めるのが好ましく、また、第1、第2の各表示領域内で誘目性の程度に差を設けると、かえって視認者に不自然に感得され、視覚的負担が増大することが懸念される。よって、全体にわたって誘目性を低下させることとしている。
Since it is also arranged in the first display area, it is preferable to enhance the visibility of the background (actual view, foreground) at a relatively distant place for the viewer, and it is attractive in each of the first and second display areas. If there is a difference in the degree of the above, the viewer may feel unnatural and the visual burden may increase. Therefore, it is decided to reduce the attractiveness as a whole.
第1乃至第4の何れか1つの態様に従属する第5の態様において、
前記ヘッドアップディスプレイは車両に搭載されてもよい。 In the fifth aspect, which is subordinate to any one of the first to fourth aspects,
The head-up display may be mounted on the vehicle.
前記ヘッドアップディスプレイは車両に搭載されてもよい。 In the fifth aspect, which is subordinate to any one of the first to fourth aspects,
The head-up display may be mounted on the vehicle.
第5の態様では、ヘッドアップディスプレイ(HUD)装置を車載用として使用する。例えば、長時間の運転等において、目が疲れにくい等の効果も得ることができる。
In the fifth aspect, the head-up display (HUD) device is used for in-vehicle use. For example, it is possible to obtain an effect that the eyes are less likely to get tired when driving for a long time.
第5の態様に従属する第6の態様において、
前記制御部は、
前記車両の前方側の端部が向く方向が、標準の状態より斜め上方にずれた場合には、前記第1の視線方向が、前記斜め上方へのずれに応じて変動することを抑制する補正処理を実施してもよい。 In the sixth aspect, which is subordinate to the fifth aspect,
The control unit
Correction to prevent the first line-of-sight direction from fluctuating according to the diagonally upward deviation when the direction toward which the front end of the vehicle faces deviates diagonally upward from the standard state. The process may be carried out.
前記制御部は、
前記車両の前方側の端部が向く方向が、標準の状態より斜め上方にずれた場合には、前記第1の視線方向が、前記斜め上方へのずれに応じて変動することを抑制する補正処理を実施してもよい。 In the sixth aspect, which is subordinate to the fifth aspect,
The control unit
Correction to prevent the first line-of-sight direction from fluctuating according to the diagonally upward deviation when the direction toward which the front end of the vehicle faces deviates diagonally upward from the standard state. The process may be carried out.
第6の態様では、車両の前方側の端部が向く方向が、標準の状態より斜め上方にずれた場合の、好ましい対応策の一例が示される。
In the sixth aspect, an example of a preferable countermeasure is shown when the direction in which the front end of the vehicle faces is shifted diagonally upward from the standard state.
車両の乗員のバランスや荷物などのバランスによって、車両のピッチング角が変化する場合がある。例えば、車両がトラックで、後方の荷台に積載物が大量にあって、トラックの前方側が、標準状態(通常状態)よりも斜め上(上方)に向く場合があり得る。このとき、視認者(運転者)の前方の実空間に仮想的に設けられる表示領域も、上側に移動することになり、こうなると、視認者(運転者)の目線も上向いて、より遠くを見易い状態となる。この場合には、第1の表示領域を広げて、遠くの実景を見易くする範囲を、より広くとるのが好ましいといえる。但し、何の工夫もなければ、第1、第2の表示領域のサイズ(あるいは各領域の割合)は同じまま、表示領域全体が上側に移動するだけとなる。
The pitching angle of the vehicle may change depending on the balance of the occupants of the vehicle and the balance of luggage. For example, the vehicle may be a truck, and there may be a large amount of load on the rear carrier, and the front side of the truck may face diagonally upward (upward) from the standard state (normal state). At this time, the display area virtually provided in the real space in front of the viewer (driver) also moves to the upper side, and in this case, the line of sight of the viewer (driver) also faces upward and farther away. It will be easy to see. In this case, it can be said that it is preferable to widen the first display area to make it easier to see a distant actual scene. However, if no measures are taken, the size of the first and second display areas (or the ratio of each area) remains the same, and the entire display area is only moved upward.
そこで、本態様では、車両の前方端の向きが上側に向いた場合でも、第1の表示領域を定める基準となる上記の第1の視線方向の上側へのずれを抑制して、例えば、好ましくは俯角0度の状態を維持するようにする。言い換えれば、上側へのずれを補正して、俯角0度に近づくように、第1の視線方向の変動を抑制するように補正する処理(補正処理)を実施する。なお、車両の前方端の向きが斜め上側にどれだけずれているかは、例えば、車両に設けたピッチ角センサからの情報に基づいて判定することができる。
Therefore, in this embodiment, even when the front end of the vehicle is oriented upward, it is preferable to suppress the upward deviation of the first line-of-sight direction, which is a reference for determining the first display area, for example. Try to maintain a state of depression angle of 0 degrees. In other words, a process (correction process) for correcting the upward deviation and suppressing the fluctuation in the first line-of-sight direction so as to approach the depression angle of 0 degrees is performed. It should be noted that how much the direction of the front end of the vehicle is displaced diagonally upward can be determined based on, for example, information from a pitch angle sensor provided on the vehicle.
第1の視線方向の上側へのずれが抑制される(好ましくは俯角0度の状態に維持される)と、表示領域は上側に移動しているので、第2の視線方向との交点の位置は、相対的に下側へと移動する。交点位置は、第1、第2の各表示領域の境界線の位置を定める重要な要因でもあるため、交点位置が下に移動することで、第1の表示領域は広がり、従って、遠方の実景を見易くする範囲(誘目性低下の範囲)が広がり、視認者(運転者)が、前方や周辺の実景を視認し易い状態を維持する(言い換えれば、良好な視界を維持できる等)の効果が得られる。
When the upward shift in the first line-of-sight direction is suppressed (preferably maintained at a depression angle of 0 degrees), the display area has moved upward, so that the position of the intersection with the second line-of-sight direction is located. Moves relatively downwards. Since the intersection position is also an important factor for determining the position of the boundary line of each of the first and second display areas, as the intersection position moves downward, the first display area expands, and therefore, a distant actual view. The range that makes it easier to see (the range of reduced attractiveness) is expanded, and the effect of maintaining a state in which the viewer (driver) can easily see the actual view in front of or around (in other words, maintaining good visibility, etc.) is effective. can get.
第5又は第6の態様に従属する第7の態様において、
前記制御部は、
前記車両の速度が遅い場合は、速い場合に比べて、前記第1の表示領域を、下側に移動させてもよい。 In the seventh aspect, which is subordinate to the fifth or sixth aspect,
The control unit
When the speed of the vehicle is slow, the first display area may be moved downward as compared with the case where the speed is high.
前記制御部は、
前記車両の速度が遅い場合は、速い場合に比べて、前記第1の表示領域を、下側に移動させてもよい。 In the seventh aspect, which is subordinate to the fifth or sixth aspect,
The control unit
When the speed of the vehicle is slow, the first display area may be moved downward as compared with the case where the speed is high.
第7の態様では、運転時に車両が低速のときは、高速のときに比べて、視認者(運転者)の注視点(注視位置)が下がる傾向があることから、これに合わせて、第1の表示領域も下側に移動させる。これにより、低速時において目線(視線)が下がっても、誘目性を低下させる範囲である第1の表示領域を適切に設定可能である。
In the seventh aspect, when the vehicle is at low speed during driving, the gaze point (gaze position) of the viewer (driver) tends to be lower than when the vehicle is at high speed. The display area of is also moved to the lower side. As a result, even if the line of sight (line of sight) is lowered at low speed, the first display area, which is a range that reduces the attractiveness, can be appropriately set.
第5又は第7の態様に従属する第8の態様において、
前記制御部は、
前記車両の速度が遅い場合は、速い場合に比べて、前記第1の表示領域を、下側に拡張させてもよい。 In the eighth aspect, which is subordinate to the fifth or seventh aspect,
The control unit
When the speed of the vehicle is slow, the first display area may be expanded downward as compared with the case where the speed is high.
前記制御部は、
前記車両の速度が遅い場合は、速い場合に比べて、前記第1の表示領域を、下側に拡張させてもよい。 In the eighth aspect, which is subordinate to the fifth or seventh aspect,
The control unit
When the speed of the vehicle is slow, the first display area may be expanded downward as compared with the case where the speed is high.
第8の態様では、運転時に車両が低速のときは、高速のときに比べて、視認者(運転者)の注視点(注視位置)が下がる傾向があることから、これに合わせて、第1の表示領域を下側に広げる(拡張する)。これにより、低速時において目線(視線)が下がっても、誘目性を低下させる範囲である第1の表示領域を適切に設定可能である。また、本態様では、第1の表示領域の上側の位置には変化がないため、視認者(運転者)の目線が上向きになったとしても、その上向きになった目線(視線)の方向には第1の表示領域があり、実景の良好な視認性を維持できる。
In the eighth aspect, when the vehicle is at low speed during driving, the gaze point (gaze position) of the viewer (driver) tends to be lower than when the vehicle is at high speed. Expand (expand) the display area of. As a result, even if the line of sight (line of sight) is lowered at low speed, the first display area, which is a range that reduces the attractiveness, can be appropriately set. Further, in this embodiment, since the position on the upper side of the first display area does not change, even if the line of sight of the viewer (driver) is directed upward, the direction of the line of sight (line of sight) turned upward is used. Has a first display area, and can maintain good visibility of the actual scene.
第5乃至第8の何れか1つの態様に従属する第9の態様において、
前記制御部は、
前記車両が右折するとき、及び左折するときの少なくとも一方において、前記第1の表示領域を左右方向に拡張させると共に、右折のときは右側に拡張させ、左折のときは左側に拡張させてもよい。 In the ninth aspect, which is subordinate to any one of the fifth to eighth aspects.
The control unit
When the vehicle makes a right turn and at least one of the left turns, the first display area may be expanded in the left-right direction, expanded to the right when turning right, and expanded to the left when turning left. ..
前記制御部は、
前記車両が右折するとき、及び左折するときの少なくとも一方において、前記第1の表示領域を左右方向に拡張させると共に、右折のときは右側に拡張させ、左折のときは左側に拡張させてもよい。 In the ninth aspect, which is subordinate to any one of the fifth to eighth aspects.
The control unit
When the vehicle makes a right turn and at least one of the left turns, the first display area may be expanded in the left-right direction, expanded to the right when turning right, and expanded to the left when turning left. ..
第9の態様では、運転時に、車両が右折又は左折をする場合には、目線(視線)が右方向又は左方向に移動することから、これに合わせて、第1の表示領域も右方向又は左方向に移動させる。これにより、右折時又は左折時においても、誘目性を低下させる範囲である第1の表示領域を適切に設定可能である。
In the ninth aspect, when the vehicle makes a right turn or a left turn during driving, the line of sight (line of sight) moves to the right or left, so that the first display area also moves to the right or left accordingly. Move to the left. This makes it possible to appropriately set the first display area, which is a range that reduces the attractiveness even when turning right or left.
第1乃至第9の何れか1つの態様に従属する第10の態様において、
前記光学系は曲面ミラーを有し、前記視認者の目位置の変化に応じて前記曲面ミラーが回転し、これに伴って前記仮想的な表示領域の実空間における位置が上下方向に変化し、前記仮想的な表示領域の上下方向の変化によって、
又は、
前記仮想的な表示領域の上下方向の変化と、前記第1の視線方向の前記基準位置の上下方向の変化と、によって、
前記仮想的な表示領域と前記第2の視線方向との交点の、上下方向の位置が変化し、これによって、前記第1の表示領域の面積が調整されてもよい。 In the tenth aspect, which is subordinate to any one of the first to ninth aspects,
The optical system has a curved mirror, and the curved mirror rotates in response to a change in the eye position of the viewer, and the position of the virtual display area in the real space changes in the vertical direction accordingly. Due to the vertical change of the virtual display area,
Or,
By the vertical change of the virtual display area and the vertical change of the reference position in the first line-of-sight direction,
The vertical position of the intersection of the virtual display area and the second line-of-sight direction may change, thereby adjusting the area of the first display area.
前記光学系は曲面ミラーを有し、前記視認者の目位置の変化に応じて前記曲面ミラーが回転し、これに伴って前記仮想的な表示領域の実空間における位置が上下方向に変化し、前記仮想的な表示領域の上下方向の変化によって、
又は、
前記仮想的な表示領域の上下方向の変化と、前記第1の視線方向の前記基準位置の上下方向の変化と、によって、
前記仮想的な表示領域と前記第2の視線方向との交点の、上下方向の位置が変化し、これによって、前記第1の表示領域の面積が調整されてもよい。 In the tenth aspect, which is subordinate to any one of the first to ninth aspects,
The optical system has a curved mirror, and the curved mirror rotates in response to a change in the eye position of the viewer, and the position of the virtual display area in the real space changes in the vertical direction accordingly. Due to the vertical change of the virtual display area,
Or,
By the vertical change of the virtual display area and the vertical change of the reference position in the first line-of-sight direction,
The vertical position of the intersection of the virtual display area and the second line-of-sight direction may change, thereby adjusting the area of the first display area.
第10の態様では、視認者の、上下方向(高さ方向)における目位置に応じて、第1の表示領域の広さ(サイズ、面積)を、適応的に調整することができる。
In the tenth aspect, the size (size, area) of the first display area can be adaptively adjusted according to the eye position in the vertical direction (height direction) of the viewer.
目位置の変化に応じて、例えば光学系に含まれる曲面ミラー(凹面鏡等)が回転して、目位置に表示光が入射されるように自動調整される。このとき、目位置が高くなる(上側になる)と、目線(視線)は見下ろす方向に変化する(俯角が増大する方向に変化する)ため、表示領域の位置も下側に移動し、目位置が低くなる(下側になる)と、目線(視線)は前方の遠くを見通すようになる(俯角が減少する方向に変化する)ことから、表示領域の位置も上側に移動し、目位置が上記の上側と下側の中間の位置にあるときは、表示領域も、上記の各位置の中間に位置するように変化する。
For example, a curved mirror (concave mirror, etc.) included in the optical system rotates according to a change in the eye position, and is automatically adjusted so that the display light is incident on the eye position. At this time, when the eye position becomes higher (upward), the line of sight (line of sight) changes in the direction of looking down (changes in the direction of increasing the depression angle), so that the position of the display area also moves downward and the eye position. When becomes lower (downward), the line of sight (line of sight) looks far ahead (changes in the direction in which the depression angle decreases), so the position of the display area also moves upward, and the eye position changes. When it is in the middle position between the upper side and the lower side, the display area also changes to be located in the middle of each of the above positions.
ここで、上記の第1の視線方向の高さ位置を、例えば固定しておく(例えば、中間の目位置の高さに固定して変化させないようにする)と、表示領域の高さ位置の変化に応じて、交点の位置が変化し、この結果として、誘目性を低下させる範囲である第1の表示領域が広がったり、縮小したりして、そのサイズが自動的に調整される。
Here, if the height position in the first line-of-sight direction is fixed (for example, fixed to the height of the intermediate eye position so as not to change), the height position of the display area is changed. In response to the change, the position of the intersection changes, and as a result, the first display area, which is a range that reduces the attractiveness, expands or contracts, and its size is automatically adjusted.
例えば、目位置が高い場合は、目線の方向が低下して近方を見る傾向が生じるため、遠方の実景の視認に関係する第1の表示領域は自動的に狭くなる。一方、目位置が低くなって目線の方向が上昇するほど、視認者は、より遠くを見通すようになるため、これに合わせて第1の表示領域の範囲も自動的に広がることになる。このようにして、第1の表示領域の範囲(サイズ、面積)が、目位置に対応して自動的に、適切に調整される。
For example, when the eye position is high, the direction of the line of sight is lowered and there is a tendency to look near, so that the first display area related to the visual recognition of the distant real scene is automatically narrowed. On the other hand, the lower the eye position and the higher the direction of the line of sight, the farther the viewer sees, and the range of the first display area is automatically expanded accordingly. In this way, the range (size, area) of the first display area is automatically and appropriately adjusted according to the eye position.
上記の説明では、第1の視線方向の高さ位置を固定しているが、実際の目の高さ位置に合わせて、第1の視線方向の高さも、その実際の目の高さ位置になるように適宜、移動させることもできる。この場合、交点の位置の変動がより大きくなる傾向が生じる。この場合にも、上記の例(第1の視線方向の高さ位置を固定する例)と同様に、目位置に応じて第1の表示領域のサイズ(面積)は変化する。但し、この例では、交点の位置の変動幅が大きいため、例えば、目位置が高くなり、視線の方向が見下ろす方向となった場合は、遠方の実景の視認に関係する第1の表示領域は設定されない(第1の表示領域の面積がゼロになる)場合もあり得る。
In the above explanation, the height position in the first line-of-sight direction is fixed, but the height in the first line-of-sight direction is also set to the actual eye height position according to the actual eye height position. It can also be moved as appropriate. In this case, the variation in the position of the intersection tends to be larger. Also in this case, the size (area) of the first display area changes according to the eye position, as in the above example (an example of fixing the height position in the first line-of-sight direction). However, in this example, since the fluctuation range of the position of the intersection is large, for example, when the eye position is high and the direction of the line of sight is the direction of looking down, the first display area related to the visual recognition of the distant actual scene is It may not be set (the area of the first display area becomes zero).
このように、表示領域の上下方向の変化によって、又は、表示領域の上下方向の変化と、第1の視線方向の基準位置の上下方向の変化との組み合わせによって、表示領域と第2の視線方向との交点の、上下方向の位置を変化させ、これによって、第1の表示領域の面積(サイズ)が自動的に調整され得る。
In this way, the display area and the second line-of-sight direction are caused by a change in the vertical direction of the display area, or by a combination of the change in the vertical direction of the display area and the change in the vertical direction of the reference position in the first line-of-sight direction. The position of the intersection with and in the vertical direction is changed, whereby the area (size) of the first display area can be automatically adjusted.
第1乃至第10の何れか1つの態様に従属する第11の態様において、
前記表示オブジェクトの誘目性を低くすることは、
低輝度とすること、
及び、
サイズを小さくすること、
及び、
コントラストを低コントラストとすること、
及び、
色彩を原色から淡い色に変更すること、
及び、
点滅状態において、点滅速度を遅くする、又は点滅しないようにすること、
及び、
同じ表示オブジェクトが表示される期間に関して、表示継続期間を短くすること、
及び、
動画の表示に関して、低速化すること、低周期とすること、静止画とすること、の少なくとも1つを実施すること、
及び、
前記表示オブジェクトの注目度の高い部分を非表示とする、又は縮小すること、
及び、
前記表示オブジェクトの外観を変化させること、
の少なくとも1つによって実現されてもよい。 In the eleventh aspect subordinate to any one of the first to tenth aspects,
Reducing the attractiveness of the display object is
Low brightness,
as well as,
To reduce the size,
as well as,
To make the contrast low,
as well as,
Changing the color from the primary color to a light color,
as well as,
In the blinking state, slow down the blinking speed or prevent it from blinking,
as well as,
To shorten the display duration for the period when the same display object is displayed,
as well as,
Regarding the display of moving images, at least one of slowing down, setting a low cycle, and making a still image,
as well as,
Hiding or reducing the high-profile part of the display object,
as well as,
Changing the appearance of the display object,
It may be realized by at least one of.
前記表示オブジェクトの誘目性を低くすることは、
低輝度とすること、
及び、
サイズを小さくすること、
及び、
コントラストを低コントラストとすること、
及び、
色彩を原色から淡い色に変更すること、
及び、
点滅状態において、点滅速度を遅くする、又は点滅しないようにすること、
及び、
同じ表示オブジェクトが表示される期間に関して、表示継続期間を短くすること、
及び、
動画の表示に関して、低速化すること、低周期とすること、静止画とすること、の少なくとも1つを実施すること、
及び、
前記表示オブジェクトの注目度の高い部分を非表示とする、又は縮小すること、
及び、
前記表示オブジェクトの外観を変化させること、
の少なくとも1つによって実現されてもよい。 In the eleventh aspect subordinate to any one of the first to tenth aspects,
Reducing the attractiveness of the display object is
Low brightness,
as well as,
To reduce the size,
as well as,
To make the contrast low,
as well as,
Changing the color from the primary color to a light color,
as well as,
In the blinking state, slow down the blinking speed or prevent it from blinking,
as well as,
To shorten the display duration for the period when the same display object is displayed,
as well as,
Regarding the display of moving images, at least one of slowing down, setting a low cycle, and making a still image,
as well as,
Hiding or reducing the high-profile part of the display object,
as well as,
Changing the appearance of the display object,
It may be realized by at least one of.
第11の態様では、表示対象(表示オブジェクト)の誘目性を低下させる手法を例示している。例えば、それらを適宜、組み合わせて使用することで、誘目性を低減する効果を高めることができる。また、表示オブジェクトの表示態様、あるいは運転状況等に応じて、適切な誘目性低下の手法を採用することで、表示オブジェクトの視認性をある程度維持しつつ、誘目性を適切な程度に調整することができる。
The eleventh aspect illustrates a method of reducing the attractiveness of a display target (display object). For example, by using them in combination as appropriate, the effect of reducing the attractiveness can be enhanced. In addition, by adopting an appropriate method of reducing the attractiveness according to the display mode of the display object, the driving situation, etc., the attractiveness should be adjusted to an appropriate degree while maintaining the visibility of the display object to some extent. Can be done.
第1乃至第10の何れか1つの態様に従属する第12の態様において、
前記表示オブジェクトの誘目性を低くすることは、
前記表示オブジェクトの色を、前記表示オブジェクトが重畳される実景の色に対する補色を含む反対色として視認性の低下を抑制しつつ、
一方、低輝度化、サイズの縮小、前記表示オブジェクトの注目度の高い部分を非表示とする、又は縮小すること、前記表示オブジェクトの外観を変化させること、の少なくとも1つを実施することによって実現されてもよい。 In the twelfth aspect, which is subordinate to any one of the first to tenth aspects,
Reducing the attractiveness of the display object is
While suppressing the deterioration of visibility, the color of the display object is regarded as the opposite color including the complementary color to the color of the actual scene on which the display object is superimposed.
On the other hand, it is realized by reducing the brightness, reducing the size, hiding or reducing the high-profile part of the display object, and changing the appearance of the display object. May be done.
前記表示オブジェクトの誘目性を低くすることは、
前記表示オブジェクトの色を、前記表示オブジェクトが重畳される実景の色に対する補色を含む反対色として視認性の低下を抑制しつつ、
一方、低輝度化、サイズの縮小、前記表示オブジェクトの注目度の高い部分を非表示とする、又は縮小すること、前記表示オブジェクトの外観を変化させること、の少なくとも1つを実施することによって実現されてもよい。 In the twelfth aspect, which is subordinate to any one of the first to tenth aspects,
Reducing the attractiveness of the display object is
While suppressing the deterioration of visibility, the color of the display object is regarded as the opposite color including the complementary color to the color of the actual scene on which the display object is superimposed.
On the other hand, it is realized by reducing the brightness, reducing the size, hiding or reducing the high-profile part of the display object, and changing the appearance of the display object. May be done.
第12の態様では、誘目性の調整の好ましい例として、表示オブジェクトの色(色彩)を、背景の実景の色に対する、補色を含む反対色に設定し、コントラストをある程度高く保ち、HUD装置による画像(虚像)の視認性はある程度確保する。表示自体が見えなくなったり、視認が困難となったりしては、虚像を表示する意味が没却されることから、画像(虚像)の視認性は視覚的なコントラストによってある程度、確保する。
In the twelfth aspect, as a preferable example of adjusting the attractiveness, the color (color) of the display object is set to the opposite color including the complementary color to the color of the actual scene of the background, the contrast is kept high to some extent, and the image by the HUD device is used. The visibility of (virtual image) is secured to some extent. If the display itself becomes invisible or difficult to see, the meaning of displaying the virtual image is lost. Therefore, the visibility of the image (virtual image) is secured to some extent by the visual contrast.
また、例えば実景が原色に近い濃い色の場合、画像(虚像)は見づらくなるが、補色を含む反対色とすれば、その場合でもコントラストが高く、画像(虚像)の視認が可能であり、また、視認者が実景から目をそらせた場合には補色残像が生じるが、画像(虚像)が補色系の色ならば、補色残像が生じても、同色系で有るため特に違和感が生じず、この点でも視覚上のストレスが低減される効果も期待できる。
Further, for example, when the actual scene is a dark color close to the primary color, the image (imaginary image) is difficult to see, but if the opposite color including complementary colors is used, the contrast is high and the image (imaginary image) can be visually recognized. When the viewer looks away from the actual scene, a complementary color afterimage occurs, but if the image (imaginary image) is a complementary color system, even if a complementary color afterimage occurs, it does not cause any discomfort because it is the same color system. In terms of points, the effect of reducing visual stress can also be expected.
一方、低輝度化、サイズの縮小、表示オブジェクトの注目度の高い部分を非表示とすること、又は縮小すること、表示オブジェクトの外観を変化させること、の少なくとも1つを実施することで、全体としての誘目性を効果的に低下させ、背景(実景)の視認を妨げないようにすることができる。
On the other hand, by reducing the brightness, reducing the size, hiding or reducing the high-profile part of the display object, and changing the appearance of the display object, the whole is performed. It is possible to effectively reduce the attractiveness of the object so as not to interfere with the visibility of the background (actual scene).
当業者は、例示した本発明に従う態様が、本発明の精神を逸脱することなく、さらに変更され得ることを容易に理解できるであろう。
Those skilled in the art will easily understand that the embodiments according to the present invention may be further modified without departing from the spirit of the present invention.
以下に説明する最良の実施形態は、本発明を容易に理解するために用いられている。従って、当業者は、本発明が、以下に説明される実施形態によって不当に限定されないことを留意すべきである。なお、以下の説明では、「仮想的な表示領域」を、単に、「表示領域」と称することがある。
The best embodiments described below are used for easy understanding of the present invention. Accordingly, one of ordinary skill in the art should note that the invention is not unreasonably limited by the embodiments described below. In the following description, the "virtual display area" may be simply referred to as a "display area".
図1(A)は、表示領域を第1、第2の各表示領域に分け、第1の表示領域における画像(虚像)の誘目性を低くした例を示す図、図1(B)は、第1、第2の各表示領域にまたがって表示される、路面に重畳されるように表示されるナビゲーション用矢印の誘目性を低くした例を示す図である。
FIG. 1A is a diagram showing an example in which a display area is divided into first and second display areas and the attractiveness of an image (virtual image) in the first display area is reduced, and FIG. 1B is a diagram. It is a figure which shows the example which reduced the attractiveness of the navigation arrow which is displayed over each of the 1st and 2nd display areas and is displayed so as to be superimposed on the road surface.
図1において、車両1(図6(A)参照)の幅方向(又は人の左右の目を結ぶ線分に沿う方向である左右方向)をX方向とし、路面300の垂線に沿う方向を上下方向、あるいは高さ方向とし、路面300から離れる方向を上方向、路面300に近づく方向を下方向とする。また、X、Yの各方向に直交する方向を前後方向(Z方向)とし、車両1が前進する方向を前方、後進する方向を後方とする。
In FIG. 1, the width direction of the vehicle 1 (see FIG. 6A) (or the left-right direction which is the direction along the line connecting the left and right eyes of a person) is the X direction, and the direction along the vertical line of the road surface 300 is up and down. The direction or the height direction is defined as the upward direction in the direction away from the road surface 300 and the downward direction in the direction approaching the road surface 300. Further, the direction orthogonal to each of the X and Y directions is defined as the front-rear direction (Z direction), the direction in which the vehicle 1 moves forward is defined as forward, and the direction in which the vehicle 1 moves backward is defined as rearward.
図1(A)の例では、車両1(図6(A)参照)の前方の実空間における、HUD装置10による仮想的な表示領域100を、第1の表示領域101と第2の表示領域102とに分ける。第1の表示領域101は、第2の表示領域102の上側に位置する。
In the example of FIG. 1 (A), the virtual display area 100 by the HUD device 10 in the real space in front of the vehicle 1 (see FIG. 6 (A)) is the first display area 101 and the second display area. Divide into 102. The first display area 101 is located above the second display area 102.
第1の表示領域100では、表示対象(表示オブジェクト)の画像(虚像)の誘目性を低下させる。これによって、HUD装置10(図6(A)参照)による表示が、運転時の背景(実景)の視認行動の妨げにならないようにし、例えば、煩わしさを低減したり、ストレスを低減したりすることができる。
In the first display area 100, the attractiveness of the image (virtual image) of the display target (display object) is reduced. As a result, the display by the HUD device 10 (see FIG. 6A) does not interfere with the visual behavior of the background (actual scene) during driving, and for example, the annoyance is reduced and the stress is reduced. be able to.
車両(自車両)1は、見通しのよい道路を、時速60kmで走行している。車両1の前方の実空間には、平面視で四角形の外形の仮想的な表示領域(言い換えれば虚像表示面)100が、道路の路面(地面に相当する面)300に対して立設されており、この表示領域(虚像表示面)上に表示オブジェクトの画像(虚像)が表示される。
Vehicle (own vehicle) 1 is traveling on a road with good visibility at a speed of 60 km / h. In the real space in front of the vehicle 1, a virtual display area (in other words, a virtual image display surface) 100 having a rectangular outer shape in a plan view is erected with respect to a road surface (a surface corresponding to the ground) 300. An image (virtual image) of the display object is displayed on this display area (virtual image display surface).
図1(A)の運転シーンでは、第1の表示領域101の背景(実景)として、前方を行く車両FC1や、遠景としての山々の風景が見えている。HUD装置10は、第1の表示領域101において、車両FC1に重畳するように注意喚起マークの画像(虚像)CU1を表示しており、また、空中に浮かぶ態様にて、ナビゲーション用矢印の画像(虚像)NV10、NV20を表示している。また、遠景の山に重ねて目的地を示す表示(目的地表示)の画像(虚像)NV30を表示している。なお、図中、CU1(V1)というように表示されているが、この(V1)は、第1の表示領域101において表示される第1の虚像であることを示す。
In the driving scene of FIG. 1A, the vehicle FC1 moving ahead and the scenery of the mountains as a distant view can be seen as the background (actual view) of the first display area 101. The HUD device 10 displays an image (virtual image) CU1 of a warning mark so as to be superimposed on the vehicle FC1 in the first display area 101, and also has an image of a navigation arrow (in a mode of floating in the air). Virtual image) NV10 and NV20 are displayed. In addition, an image (virtual image) NV30 of a display (destination display) showing a destination is displayed overlaid on a mountain in a distant view. Although it is displayed as CU1 (V1) in the figure, this (V1) indicates that it is the first virtual image displayed in the first display area 101.
また、図1(A)では、第2の表示領域102において、手前側には「60km/h」という車速表示SPが示されている。図中、SP(V2)と記載されているが、(V2)は、第2の表示領域102において表示される第2の虚像であることを示す。
Further, in FIG. 1A, in the second display area 102, a vehicle speed display SP of "60 km / h" is shown on the front side. Although it is described as SP (V2) in the figure, (V2) indicates that it is a second virtual image displayed in the second display area 102.
また、図1(A)では、第2の表示領域102に重なる実景(背景)として、前方を行く車両FC2(車両FC1よりも手前側に位置する)が破線で示されている。この車両FC2は、実際の運転シーンで存在するわけではなく、表示オブジェクトの誘目性の低下処理の説明上、比較例として記載しているものであり、仮想的なものであるため、破線で表示している。
Further, in FIG. 1 (A), the vehicle FC2 (located in front of the vehicle FC1) traveling ahead is shown by a broken line as an actual view (background) overlapping the second display area 102. This vehicle FC2 does not exist in an actual driving scene, but is described as a comparative example for the purpose of explaining the process of reducing the attractiveness of the display object, and is a virtual one, so it is displayed by a broken line. is doing.
ここで、第1の表示領域101は、HUD装置10による仮想的な表示領域100の、比較的遠方の実景に重ねられる(重畳される)ことが多いと考えられる画像(虚像)が配置される領域である。図1(A)の例では、比較的遠くを走る車両FC2に重ねられる、注意喚起マークの虚像CU1や、2つの矢印の虚像NV10、NV20、さらに目的地表示の虚像NV30が表示されている。ここで、注意喚起マークや、矢印、目的地表示は、各々、表示対象、あるいは表示オブジェクトと称されるものである。
Here, in the first display area 101, an image (virtual image) that is considered to be often overlapped (superimposed) on a relatively distant real scene of the virtual display area 100 by the HUD device 10 is arranged. It is an area. In the example of FIG. 1A, a virtual image CU1 of a warning mark, virtual images NV10 and NV20 of two arrows, and a virtual image NV30 of a destination display, which are superimposed on a vehicle FC2 traveling relatively far away, are displayed. Here, the alert mark, the arrow, and the destination display are each referred to as a display target or a display object.
図1(A)の例では、表示オブジェクトの数が多く、仮に、これらの表示オブジェクトを示す画像(虚像)が原色に近い色であったり、高輝度であったり、サイズが大きいものであったりすると、その表示オブジェクト自体の誘目性が高すぎて、視認者(運転者)の注意を過度に惹きつけてしまい、背景の視認の妨げとなったり、背景への注意を奪ったり、あるいは、背景との間で違和感を生じさせてストレスを与えることにもなりかねない。
In the example of FIG. 1A, the number of display objects is large, and the image (virtual image) showing these display objects may have a color close to the primary color, a high brightness, or a large size. Then, the attractiveness of the display object itself is too high, and it attracts the attention of the viewer (driver) excessively, which hinders the visibility of the background, deprives the background of attention, or the background. It may cause discomfort and stress.
車両の運転に際しては、遠くを見通しつつ、近方や周囲にも目を配り、視野を広く維持することが重要と言われるが、特に、長時間の運転では、遠方に注意を払う時間が長いことから、遠方の実景(前景)の視認性は安全運転にとって重要な事項である。
When driving a vehicle, it is said that it is important to keep an eye on the near and surrounding areas and maintain a wide field of vision while looking into the distance, but especially when driving for a long time, it takes a long time to pay attention to the distance. Therefore, the visibility of the actual view (foreground) in the distance is an important matter for safe driving.
この点を考慮し、図1(A)では、第1の表示領域101において、画像(虚像)CU1、NV10、NV20、NV30の各々の誘目性を低下させて、背景の視認を妨げたり、視認者の背景への注意を過度に奪ったり、背景との間で違和感を生じさせてストレスを与えたりすることないようにし、快適な運転を確保できるようにしている。第1の表示領域101は、画像(虚像)の誘目性を低下させる範囲を示している。なお、第1、第2の表示領域101、102の設定については後述する。
In consideration of this point, in FIG. 1A, in the first display area 101, the attractiveness of each of the images (virtual image) CU1, NV10, NV20, and NV30 is lowered to hinder or visually recognize the background. It is designed to ensure comfortable driving by avoiding excessive attention to the background of the person and causing discomfort with the background and causing stress. The first display area 101 shows a range that reduces the attractiveness of the image (virtual image). The settings of the first and second display areas 101 and 102 will be described later.
ここで、車両FC1に重畳される第1の虚像CU2の誘目性を低下させることについて、車両FC2に重畳される第2の虚像CU2と比較しつつ説明する。ここで図2を参照する。図2は、表示オブジェクト(虚像)の誘目性を低下させる例を示す図である。
Here, the reduction of the attractiveness of the first virtual image CU2 superimposed on the vehicle FC1 will be described in comparison with the second virtual image CU2 superimposed on the vehicle FC2. Now refer to FIG. FIG. 2 is a diagram showing an example of reducing the attractiveness of a display object (virtual image).
図2において、車両FC1、FC2は共に赤色であるとする。手前側に位置する車両FC2は、より危険性が高いと判定されるため、注意喚起マーク(第2の虚像)CU2は、誘目性を高めて表示するのが好ましい。例えば、青又は緑(補色を含む反対色等)を使用することで、色のコントラストを向上させ、また、感嘆符をきわだたせる、輝度を最大化する、サイズを大とする等の処理(処理S1とする)によって、誘目性を向上させることができる。
In FIG. 2, it is assumed that the vehicles FC1 and FC2 are both red. Since the vehicle FC2 located on the front side is determined to have a higher risk, it is preferable to display the caution mark (second virtual image) CU2 with increased attractiveness. For example, by using blue or green (opposite colors including complementary colors, etc.), processing such as improving color contrast, making exclamation marks stand out, maximizing brightness, increasing size, etc. ( Processing S1) can improve the attractiveness.
一方、より遠方に位置する車両FC1に重畳される注意喚起マーク(第1の虚像)CU1については、実景である車両FC1の視認を妨げないように、誘目性を低下させる。但し、視認性が低くなりすぎて視認困難となってしまっては表示する意味がなくなるため、視認性はある程度、確保しなくてはならない。
On the other hand, the attention mark (first virtual image) CU1 superimposed on the vehicle FC1 located farther away is reduced in attractiveness so as not to interfere with the visibility of the vehicle FC1 which is the actual scene. However, if the visibility becomes too low and it becomes difficult to see, there is no point in displaying the display, so the visibility must be ensured to some extent.
そこで、一例であるが、青又は緑(補色を含む反対色等)を使用することで、色のコントラストを向上させ、注意喚起マーク(第1の虚像)CU1について、ある程度の視認性を確保する。一方、例えば、注意喚起用には有用であるが、視覚的には複雑な印象を与える感嘆符を削除する(非表示とすることによる外観の変更)、輝度を低下させる、サイズを小とする、といった手法の少なくとも1つを採用し、表示オブジェクト全体としての誘目性を低下させる。これにより、視認は可能としつつ、過度に注意を奪わず、視認者にストレスを与えることが少ない表示を実現できる。なお、上記の手法は一例であり、これに限定されるものではない。
Therefore, as an example, by using blue or green (opposite colors including complementary colors, etc.), the color contrast is improved and the caution mark (first virtual image) CU1 is ensured to some extent. .. On the other hand, for example, the exclamation mark, which is useful for alerting but gives a visually complicated impression, is deleted (the appearance is changed by hiding it), the brightness is reduced, and the size is reduced. , At least one of the methods is adopted to reduce the attractiveness of the display object as a whole. As a result, it is possible to realize a display that can be visually recognized, does not attract excessive attention, and does not give stress to the viewer. The above method is an example and is not limited to this.
より詳細に述べれば、表示オブジェクトの誘目性を低くすることは、例えば、低輝度とすること、サイズを小さくすること、コントラスト(色のコントラスト、輝度のコントラストを含む)を低コントラストとすること、色彩を原色から淡い色に変更すること、点滅状態において、点滅速度を遅くする、又は点滅しないようにすること、同じ表示オブジェクトが表示される期間に関して、表示継続期間を短くすること、動画の表示に関して、低速化する、低周期とする、静止画とすること、の少なくとも1つを実施すること、表示オブジェクトの注目度の高い部分を非表示とする、又は縮小すること、表示オブジェクトの外観を変化させること、の少なくとも1つによって実現されてもよい。
More specifically, reducing the attractiveness of a display object means, for example, lowering the brightness, reducing the size, and making the contrast (including color contrast and brightness contrast) low. Change the color from the primary color to a light color, slow down the blinking speed or prevent it from blinking in the blinking state, shorten the display duration for the period when the same display object is displayed, display the video With respect to, at least one of slowing down, slowing down, and making a still image, hiding or reducing the high-profile part of the display object, and the appearance of the display object. It may be realized by at least one of changing.
また、好ましい1つの例では、表示オブジェクトの誘目性を低くすることは、表示オブジェクトの色を、表示オブジェクトが重畳される実景の色に対する補色を含む反対色として視認性の低下を抑制しつつ、一方、低輝度化、サイズの縮小、表示オブジェクトの注目度の高い部分を非表示とする、又は縮小すること、表示オブジェクトの外観を変化させること、の少なくとも1つを実施することによって実現されてもよい。
Further, in one preferable example, lowering the attractiveness of the display object suppresses the deterioration of visibility by making the color of the display object the opposite color including the complementary color to the color of the actual scene on which the display object is superimposed. On the other hand, it is realized by reducing the brightness, reducing the size, hiding or reducing the high-profile part of the display object, and changing the appearance of the display object. May be good.
誘目性の調整の好ましい例として、表示オブジェクトの色(色彩)を、背景の実景の色に対する、補色を含む反対色に設定し、コントラストをある程度高く保ち、HUD装置による画像(虚像)の視認性はある程度確保する。表示自体が見えなくなったり、視認が困難となったりしては、虚像を表示する意味が没却されることから、画像(虚像)の視認性は視覚的なコントラストによってある程度、確保する。
As a preferable example of adjusting the attractiveness, the color (color) of the display object is set to the opposite color including the complementary color to the color of the actual scene of the background, the contrast is kept high to some extent, and the visibility of the image (virtual image) by the HUD device is set. Secure to some extent. If the display itself becomes invisible or difficult to see, the meaning of displaying the virtual image is lost. Therefore, the visibility of the image (virtual image) is secured to some extent by the visual contrast.
また、例えば実景が原色に近い濃い色の場合、画像(虚像)は見づらくなるが、補色を含む反対色とすれば、その場合でもコントラストが高く、画像(虚像)の視認が可能であり、また、視認者が実景から目をそらせた場合には補色残像が生じるが、画像(虚像)が補色系の色ならば、補色残像が生じても、同色系で有るため特に違和感が生じず、この点でも視覚上のストレスが低減される効果も期待できる。
Further, for example, when the actual scene is a dark color close to the primary color, the image (imaginary image) is difficult to see, but if the opposite color including complementary colors is used, the contrast is high and the image (imaginary image) can be visually recognized. When the viewer looks away from the actual scene, a complementary color afterimage occurs, but if the image (imaginary image) is a complementary color system, even if a complementary color afterimage occurs, it does not cause any discomfort because it is the same color system. In terms of points, the effect of reducing visual stress can also be expected.
一方、低輝度化、サイズの縮小、表示オブジェクトの注目度の高い部分を非表示とする、又は縮小すること、表示オブジェクトの外観を変化させること等、の少なくとも1つを実施することで、全体としての誘目性を効果的に低下させ、背景(実景)の視認を妨げないようにすることができる。
On the other hand, by reducing the brightness, reducing the size, hiding or reducing the high-profile part of the display object, changing the appearance of the display object, etc., the whole is performed. It is possible to effectively reduce the attractiveness of the object so as not to interfere with the visibility of the background (actual scene).
図1に戻って説明を続ける。図1(B)を参照する。図1(B)の例では、表示オブジェクトであるナビゲーション用の矢印の虚像71が、第1の表示領域101及び第2の表示領域102にまたがって表示されている。この場合は、矢印の虚像71の全体の誘目性を低くする。
Return to Fig. 1 and continue the explanation. See FIG. 1 (B). In the example of FIG. 1B, the virtual image 71 of the navigation arrow, which is a display object, is displayed across the first display area 101 and the second display area 102. In this case, the overall attractiveness of the virtual image 71 of the arrow is lowered.
この矢印の虚像71は、第1の表示領域101に表示される先端の部分71aと、第2の表示領域102に表示される基端部分71bとを含む。但し、第1の表示領域101にも配置されることから、視認者の比較的遠方における背景(実景、前景)の視認性を高めるのが好ましい。また、第1、第2の各表示領域100、101内で誘目性の程度に差を設けると、かえって視認者に不自然に感得され、視覚的負担が増大することが懸念される。よって、全体にわたって誘目性を低下させることとしている。
The virtual image 71 of this arrow includes a tip portion 71a displayed in the first display area 101 and a base end portion 71b displayed in the second display area 102. However, since it is also arranged in the first display area 101, it is preferable to improve the visibility of the background (actual view, foreground) at a relatively distant place for the viewer. Further, if the degree of attractiveness is provided in the first and second display areas 100 and 101, the viewer may feel unnatural and the visual burden may increase. Therefore, it is decided to reduce the attractiveness as a whole.
次に、図3を参照する。図3(A)は、第1の表示領域内において、上下方向における位置に応じて誘目性を変化させる一例を示す図、図3(B)は他の例を示す図である。
Next, refer to FIG. FIG. 3A is a diagram showing an example in which the attractiveness is changed according to a position in the vertical direction in the first display area, and FIG. 3B is a diagram showing another example.
図3の例では、第1の表示領域101内において、上下方向の位置(表示オブジェクトが配置される位置)に応じて誘目性に差を設け、表示オブジェクトを上側に配置する場合の誘目性を、下側に配置する場合の誘目性よりも低くする。より遠くを見る場合ほど、表示オブジェクト自体の注目度を減らして、視認者が、遠くの実景をはっきりと見えるようにする。視認者のストレスを効果的に軽減する一つの好適な例である。
In the example of FIG. 3, in the first display area 101, a difference is provided in the attractiveness according to the position in the vertical direction (the position where the display object is arranged), and the attractiveness when the display object is arranged on the upper side is determined. , Lower than the attractiveness when placed on the lower side. The farther you look, the less attention you have to the display object itself, so that the viewer can clearly see the distant view. This is a good example of effectively reducing the stress of the viewer.
上下方向における誘目性(誘目度)の変化は、連続的なものであってもよく(図3(A)の例)、段階的なものであってもよい(図3(B)の例)。図3(B)では、第1の表示領域101を3つのブロック101-1~101-3に分け、上側のブロックほど、誘目性を低くする。
The change in the attractiveness (degree of attraction) in the vertical direction may be continuous (example of FIG. 3 (A)) or gradual (example of FIG. 3 (B)). .. In FIG. 3B, the first display area 101 is divided into three blocks 101-1 to 101-3, and the upper block has a lower attractiveness.
次に、図4を参照する。図4(A)は、標準速度での走行時における第1の表示領域の位置の例を示す図、図4(B)は、低速での走行時において、第1の表示領域を下側に移動させる例を示す図、図4(C)は、低速での走行時において、第1の表示領域を下側に広げる例を示す図である。
Next, refer to FIG. FIG. 4A is a diagram showing an example of the position of the first display area when traveling at a standard speed, and FIG. 4B is a diagram showing the first display area downward when traveling at a low speed. FIG. 4 (C) is a diagram showing an example of moving, and is a diagram showing an example of expanding the first display area downward when traveling at a low speed.
標準速度での走行時には、図4(A)に示されるように、第1の表示領域101は、表示領域100の上側に設定される。運転者の視線は、低速の走行時には、下側に移動する傾向があるため、これに合わせて、図4(B)では、第1の表示領域101を、下側に移動させている。また、図4(C)では、第1の表示領域101を、下側に広げて(拡張して)いる。これによって、運転速度に応じて、第1の表示領域を適切に設定することが可能である。
When traveling at a standard speed, as shown in FIG. 4A, the first display area 101 is set above the display area 100. Since the driver's line of sight tends to move downward when traveling at low speed, the first display area 101 is moved downward in FIG. 4B in accordance with this. Further, in FIG. 4C, the first display area 101 is expanded (expanded) downward. This makes it possible to appropriately set the first display area according to the operating speed.
図5を参照する。図5(A)、(B)は、表示領域の上側の一部に、第1の表示領域を設定した例を示す図、図5(C)、(D)は、右折時において、第1の表示領域を右方向に広げた例を示す図である。なお、以下の説明において、円の一部としての部分的(局所的)な円弧形状を、部分円弧と称する。
Refer to FIG. 5 (A) and 5 (B) are diagrams showing an example in which the first display area is set in a part of the upper side of the display area, and FIGS. 5 (C) and 5 (D) are the first when turning right. It is a figure which shows the example which expanded the display area of. In the following description, a partial (local) arc shape as a part of a circle is referred to as a partial arc.
直進走行時において、図5(A)では、表示領域100の上側のほぼ中央の位置に、部分円弧の境界線で区画されて、第1の表示領域101が設けられている。第1の表示領域101は、扇形(あるいは部分円)の形状である。図5(B)では、表示領域100の上側のほぼ中央の位置に、四角形の形状の第1の表示領域101が設けられている。
When traveling straight ahead, in FIG. 5A, a first display area 101 is provided at a position substantially at the center of the upper side of the display area 100, partitioned by a boundary line of a partial arc. The first display area 101 has a fan shape (or a partial circle). In FIG. 5B, a first display area 101 having a quadrangular shape is provided at a position substantially at the center of the upper side of the display area 100.
ここで、車両が右折する場合を想定すると、運転者の視線は右側に移動する。そこで、図5(C)、(D)では、その視線の右側への移動に合わせて、図5(A)、(B)の第1の表示領域101を、右方向(右側)に広げている。これにより、右折時においても、背景の視認を妨げない虚像の表示が可能である。よって、運転者の視覚的、心理的な負担を軽減することができる。
Here, assuming that the vehicle turns right, the driver's line of sight moves to the right. Therefore, in FIGS. 5C and 5D, the first display area 101 of FIGS. 5A and 5B is expanded to the right (right side) in accordance with the movement of the line of sight to the right side. There is. This makes it possible to display a virtual image that does not interfere with the visibility of the background even when turning right. Therefore, the visual and psychological burden on the driver can be reduced.
次に、図6を参照する。図6(A)は、第1の視線方向の高さ位置をアイボックスの中点位置として、第1の表示領域を設定する例を示す図、図6(B)は、第1の視線方向の高さ位置を目の高さ位置として、第1の表示領域を設定する例を示す図である。
Next, refer to FIG. FIG. 6A is a diagram showing an example in which the first display area is set with the height position in the first line-of-sight direction as the midpoint position of the eye box, and FIG. 6B is a diagram showing the first line-of-sight direction. It is a figure which shows the example which sets the 1st display area with the height position of the eye as the height position of an eye.
図6(A)の右側に示されるように、HUD装置10は、例えば、HUD装置本体20と、I/Oインタフェース30と、を含んで構成される。HUD装置10は、車両1のダッシュボード5の内部に収納されている。また、図6(A)の例では、視認者(運転者等)の視点(目の位置や視線方向を含む)を検出するために、目(あるいは瞳)を撮像するカメラ50も、ダッシュボード5の内部に配置されている。HUD装置本体20から、表示光40が被投影部材であるウインドシールド2に向けて出射(投影)される。
As shown on the right side of FIG. 6A, the HUD device 10 includes, for example, a HUD device main body 20 and an I / O interface 30. The HUD device 10 is housed inside the dashboard 5 of the vehicle 1. Further, in the example of FIG. 6A, the camera 50 that captures the eyes (or pupils) in order to detect the viewpoint (including the position of the eyes and the direction of the line of sight) of the viewer (driver or the like) is also a dashboard. It is arranged inside 5. The display light 40 is emitted (projected) from the HUD device main body 20 toward the windshield 2 which is a projected member.
表示光40は、その一部がウインドシールド2で反射して、視認者(運転者等)の目(視点)Aに向かい、車両1の前方にて結像することで、表示領域100に画像(虚像)が表示される。表示領域100は、虚像表示面と称することもできる。この表示領域(虚像表示面)100は、例えば、スクリーン(図15の符号160)の表示面の表示領域に対応して、車両1の前方に仮想的に設けられるものである。
A part of the display light 40 is reflected by the windshield 2, heads toward the eyes (viewpoint) A of the viewer (driver or the like), and forms an image in front of the vehicle 1 to form an image in the display area 100. (Virtual image) is displayed. The display area 100 can also be referred to as a virtual image display surface. The display area (virtual image display surface) 100 is virtually provided in front of the vehicle 1 corresponding to the display area of the display surface of the screen (reference numeral 160 in FIG. 15), for example.
表示領域100の、視点4(あるいは、これに相当する基準位置)からの距離はL1に設定されている。このL1を虚像表示距離という場合がある。虚像表示距離L1は、例えば、HUD装置の内部に配置される光学系(例えば、図13の投光部155に配置されるレンズ等)を光軸に沿って移動させることで、適宜、調整することができる。
The distance of the display area 100 from the viewpoint 4 (or the reference position corresponding to this) is set to L1. This L1 may be referred to as a virtual image display distance. The virtual image display distance L1 is appropriately adjusted by, for example, moving an optical system (for example, a lens arranged in the light projecting unit 155 of FIG. 13) arranged inside the HUD device along the optical axis. be able to.
また、図6(A)において、表示領域101は、路面300に対して、少しだけ傾斜して(略垂直に)立設されている。但し、これは一例であり、例えば、図13のスクリーン160を光軸に対して傾斜させることで、その傾斜の程度に応じて、表示領域101の、路面300に対する傾斜角度を、適宜、調整することができる。
Further, in FIG. 6A, the display area 101 is erected slightly inclined (substantially perpendicular) to the road surface 300. However, this is only an example. For example, by inclining the screen 160 of FIG. 13 with respect to the optical axis, the inclination angle of the display area 101 with respect to the road surface 300 is appropriately adjusted according to the degree of the inclination. be able to.
以下、第1の表示領域101の設定について説明する。第1の表示領域101は、視認者(運転者等)の視線の俯角(一例として、物を見下ろしたときの視線の方向と目の高さ位置(あるいはこれに相当する位置)の水平面等とのなす角で表すことが可能である)の、例えば0度~m度(mは0より大きい整数であり、例えばm=2)の範囲に相当する表示範囲であり、この範囲では、視認者(人)の視線は、地面又はこれに相当する面(路面等であり、またシミュレーション装置やゲーム装置の場合は設置場所の床面等も該当する)に略平行であり、まっすぐに前を向いて(あるいは、少しだけ目線を落として)遠方を見ている状態であろうと推測される。よって、この状態における、前景の視認性を良好に確保することで、視認者の心理的負担等を、効果的に軽減(低減)することができる。
Hereinafter, the setting of the first display area 101 will be described. The first display area 101 includes a depression angle of the line of sight of a viewer (driver, etc.) (for example, a horizontal plane of the direction of the line of sight when looking down at an object and a position at eye level (or a position corresponding thereto)). It is a display range corresponding to the range of, for example, 0 degree to m degree (m is an integer larger than 0, for example, m = 2), which can be represented by the angle formed by the viewer. The line of sight of the (person) is approximately parallel to the ground or a surface equivalent thereto (the road surface, etc., and in the case of a simulation device or a game device, the floor surface, etc. of the installation location), and faces straight forward. It is presumed that he is looking far away (or with a slight glance). Therefore, by ensuring good visibility of the foreground in this state, the psychological burden on the viewer can be effectively reduced (reduced).
ここで、視認者(運転者)の「目位置」、又は「目位置に相当する基準位置」を起点とする、俯角0度の視認者の前方に向かう視線の方向を第1の視線方向とし、第1の視線方向700から傾斜した俯角m度(mは0より大きい整数)の、視認者の視線の方向を第2の視線方向とする。
Here, the direction of the line of sight toward the front of the viewer with a depression angle of 0 degrees, starting from the "eye position" of the viewer (driver) or the "reference position corresponding to the eye position", is defined as the first line-of-sight direction. The direction of the line of sight of the viewer at a depression angle m degree (m is an integer larger than 0) inclined from the first line-of-sight direction 700 is defined as the second line-of-sight direction.
図6(A)では、アイボックス200の高さ方向における中心位置205(路面300を基準とした高さはh1に設定されている)が、「目位置に相当する基準位置」であり、アイボックス200の中心位置205を起点として前方に延びる線分で表される視線方向700が、第1の視線方向となる。また、第1の視線方向700から俯角Raだけ傾斜した線分で表される視線方向を、第2の視線方向U10とする。
In FIG. 6A, the center position 205 in the height direction of the eye box 200 (the height with respect to the road surface 300 is set to h1) is the “reference position corresponding to the eye position”, and the eye. The line-of-sight direction 700 represented by a line segment extending forward from the center position 205 of the box 200 is the first line-of-sight direction. Further, the line-of-sight direction represented by a line segment inclined by the depression angle Ra from the first line-of-sight direction 700 is defined as the second line-of-sight direction U10.
なお、図6(A)において、前方の実空間に設けられる表示領域100の中心をPとし、アイボックス200の中心位置205と表示領域の中心Pとを結ぶ線分で示される視線方向には、U20の符号を付している。この視線方向U20は、第1の視線方向700から角度θvだけ下方に傾斜している。
In FIG. 6A, the center of the display area 100 provided in the front real space is P, and the line segment connecting the center position 205 of the eyebox 200 and the center P of the display area is in the line-of-sight direction. , U20 is attached. The line-of-sight direction U20 is inclined downward by an angle θv from the first line-of-sight direction 700.
ここで、第2の視線方向U10と表示領域100との交点をQ1とする。この交点Q1を基準(境界)として、第1の視線方向700に近い側の第1の表示領域100と、第1の表示領域以外の第2の表示領域102とに分けることで、第1の表示領域及び第2の表示領域を設定することができる。
Here, let Q1 be the intersection of the second line-of-sight direction U10 and the display area 100. Using this intersection Q1 as a reference (boundary), the first display area 100 on the side closer to the first line-of-sight direction 700 and the second display area 102 other than the first display area can be divided into a first display area 102. A display area and a second display area can be set.
HUD装置10の制御部(図13の符号120)は、第1の表示領域101に表示される第1の表示オブジェクト(虚像)の誘目性を、第2の表示領域102に表示される第2の表示オブジェクト(虚像)の誘目性よりも低くする制御を実施する。
The control unit (reference numeral 120 in FIG. 13) of the HUD device 10 displays the attractiveness of the first display object (virtual image) displayed in the first display area 101 in the second display area 102. Controls to make it lower than the attractiveness of the display object (virtual image) of.
次に、図6(B)を参照する。図6(B)では、第1の視線方向710の起点が、実際の目(視点)の位置となっている。第1の視線方向710を基準として、俯角Raだけ下方に傾斜した方向が第2の視線方向U11である。他の構成については、図6(A)と同様である。
Next, refer to FIG. 6 (B). In FIG. 6B, the starting point of the first line-of-sight direction 710 is the position of the actual eye (viewpoint). The second line-of-sight direction U11 is a direction inclined downward by the depression angle Ra with respect to the first line-of-sight direction 710. Other configurations are the same as in FIG. 6 (A).
次に、図7を参照する。図7(A)は、部分円弧の境界線によって、第1、第2の各表示領域を分ける例を示す図、図7(B)は、表示領域を左右に横断する直線の線分によって、第1、第2の各表示領域を分ける例を示す図である。
Next, refer to FIG. 7. FIG. 7A is a diagram showing an example in which the first and second display areas are divided by the boundary line of the partial arc, and FIG. 7B is a diagram showing a straight line segment that crosses the display area to the left and right. It is a figure which shows the example which separates each of the 1st and 2nd display areas.
図7(A)では、第1の視線方向700又は710の位置を示す点Q0を基準として、視認者から見た平面視で、俯角Raに相当する距離だけ下方に点Q1をとり、この点Q1を通る円800を描き、この円800と表示領域100とが重なる領域を、第1の表示領域101とし、第1の表示領域101の下側の領域を第2の表示領域102とする。図7(A)の第1の表示領域101は、先に図5(A)で示した部分円の形状となる。
In FIG. 7A, with reference to the point Q0 indicating the position of the first line-of- sight direction 700 or 710, the point Q1 is set downward by a distance corresponding to the depression angle Ra in a plan view from the viewer, and this point is taken. A circle 800 passing through Q1 is drawn, the area where the circle 800 and the display area 100 overlap is referred to as a first display area 101, and the area below the first display area 101 is referred to as a second display area 102. The first display area 101 of FIG. 7A has the shape of a partial circle previously shown in FIG. 5A.
図7(B)では、点Q0を基準として、視認者から見た平面視で、俯角Raに相当する距離だけ下方に点Q2をとり、この点Q2を通り、四角形の第1の表示領域101を左右に横断する線分を描き、その線分で区画される上側の領域の全体を第1の表示領域とし、その下側の領域を第2の表示領域102とする。図7(B)の第1の表示領域101は、先の図4(A)の例に相当する。
In FIG. 7B, the point Q2 is taken downward by a distance corresponding to the depression angle Ra in a plan view from the viewer with respect to the point Q0, passes through this point Q2, and passes through the point Q2, and is the first display area 101 of the quadrangle. A line segment is drawn to the left and right, and the entire upper area partitioned by the line segment is referred to as a first display area, and the lower area thereof is referred to as a second display area 102. The first display area 101 of FIG. 7B corresponds to the previous example of FIG. 4A.
次に、図8を参照する。図8は、表示領域の上側の一部に、四角形の第1の表示領域を設定する例を示す図である。図8では、点Q0を基準(中心)として、高さ2Ra、幅2Rbの四角形(長方形)を描く。この四角形の4つの頂点の座標は、(X1、Y1)、(X2、Y2)、(X3、Y3)、(X4、Y4)である。
Next, refer to FIG. FIG. 8 is a diagram showing an example in which a first display area of a quadrangle is set in a part of the upper side of the display area. In FIG. 8, a quadrangle (rectangle) having a height of 2Ra and a width of 2Rb is drawn with the point Q0 as a reference (center). The coordinates of the four vertices of this quadrangle are (X1, Y1), (X2, Y2), (X3, Y3), (X4, Y4).
この四角形と表示領域100とが重なる領域(重複領域)を第1の表示領域101とする。第2の領域102の一部は、第1の表示領域101の下側に位置する。よって、図8の例でも、第1の表示領域101は、第2の表示領域102の上側にあるということができる。図8の第1の表示領域101は、先の図5(B)の例に相当する。
The area where the quadrangle and the display area 100 overlap (overlapping area) is defined as the first display area 101. A part of the second area 102 is located below the first display area 101. Therefore, even in the example of FIG. 8, it can be said that the first display area 101 is above the second display area 102. The first display area 101 of FIG. 8 corresponds to the previous example of FIG. 5 (B).
次に、図9を参照する。図9(A)は、画像表示部の表示面において、第1の表示領域に対応する第1の表示面領域、及び第2の表示領域に対応する第2の表示面領域を設定した例を示す図、図9(B)は、第1、第2の各表示面領域に表示オブジェクトの画像(実像)を配置する場合における誘目性の低下処理について説明する図である。
Next, refer to FIG. FIG. 9A shows an example in which a first display surface area corresponding to a first display area and a second display surface area corresponding to a second display area are set on the display surface of the image display unit. FIG. 9B is a diagram illustrating a process of reducing attractiveness when an image (real image) of a display object is arranged in each of the first and second display surface areas.
図9(A)、(B)において、実空間におけるX、Y、Zの各方向に対応する方向は、X’、Y’、Z’と表記している。また、実空間における表示領域100に相当する、表示パネル143の表示面PLにおける表示領域を100’と表記し、この表示領域100’を、表示面領域100’と記載する。同様に、第1の表示領域101に対応する領域を、第1の表示面領域101’とし、第2の表示領域102に対応する領域を、第2の表示面領域102’とする。
In FIGS. 9A and 9B, the directions corresponding to each of the X, Y, and Z directions in the real space are described as X', Y', and Z'. Further, the display area on the display surface PL of the display panel 143, which corresponds to the display area 100 in the real space, is described as 100', and this display area 100'is described as the display surface area 100'. Similarly, the area corresponding to the first display area 101 is referred to as the first display surface area 101', and the area corresponding to the second display area 102 is referred to as the second display surface area 102'.
また、第1の視点方向に相当する方向を、700’又は710’と記載している。また、俯角Raに対応する距離に相当する、表示面PL上での距離はRa’と記載している。
Further, the direction corresponding to the first viewpoint direction is described as 700'or 710'. Further, the distance on the display surface PL, which corresponds to the distance corresponding to the depression angle Ra, is described as Ra'.
図9(A)に示されるように、表示パネル143(図13参照)の表示面PLには、先に説明した第1の表示領域101に相当する第1の表示面領域101’と、第2の表示領域102に相当する第2の表示面領域102’とが設定されている。
As shown in FIG. 9A, the display surface PL of the display panel 143 (see FIG. 13) has a first display surface area 101'corresponding to the first display area 101 described above, and a first display surface area 101'. A second display surface area 102'corresponding to the display area 102 of 2 is set.
設定方法は、先に説明した実空間における設定例と同様である。言い換えれば、点Q0’を基準として、縦方向(Y’方向)の下側に、Ra’だけ離れた点Q1’をとり、このQ1’を通り、表示面領域100’を横方向に横断する線分によって、表示面領域100’を2分割する。上側の領域を第1の表示面領域101’とし、下側を第2の表示面領域102’とする。
The setting method is the same as the setting example in the real space described above. In other words, with respect to the point Q0', a point Q1' that is separated by Ra'is set below the vertical direction (Y'direction), passes through this Q1', and crosses the display surface area 100'in the horizontal direction. The display surface area 100'is divided into two by the line segment. The upper area is referred to as a first display surface area 101', and the lower area is referred to as a second display surface area 102'.
制御部(図13の符号120)は、第1の表示面領域101’に配置される表示オブジェクト(実像、あるいは画像)について、誘目性を低下させる制御を行う。
The control unit (reference numeral 120 in FIG. 13) controls the display object (real image or image) arranged in the first display surface area 101'to reduce the attractiveness.
図9(B)の例では、表示オブジェクトとして、矢印の画像NV’(R)と、車速表示SP’(R)とが示されている。なお、(R)は、実像を示す。何れの画像を第1の表示面領域101’に配置するかは、例えば、各画像の座標を、第1、第2の表示面領域101’、102’の座標と比較することで判定が可能である。
In the example of FIG. 9B, the image NV'(R) of the arrow and the vehicle speed display SP'(R) are shown as display objects. In addition, (R) shows a real image. Which image is to be placed in the first display surface area 101'can be determined, for example, by comparing the coordinates of each image with the coordinates of the first and second display surface areas 101'and 102'. Is.
但し、これに限定されるものではない。より簡易に判定することも可能である。例えば、矢印の画像NV’(R)の中心点をQ11’とし、車速表示SP’(R)の中心点をQ12’とする。各中心点Q11’、Q12’と、点Q0’との距離D1、D2を求め、D1とD2を比較し、距離が短い方の画像を、第1の表示面領域101’に配置し、距離が長い方の画像を、第2の表示面領域102’に配置してもよい。なお、D1、D2の代わりに、点Q0’を通って横方向に延びる線分L10からの、縦方向における距離D3、D4を検出してもよい。
However, it is not limited to this. It is also possible to make a simpler determination. For example, the center point of the image NV'(R) of the arrow is Q11', and the center point of the vehicle speed display SP'(R) is Q12'. The distances D1 and D2 between the center points Q11'and Q12'and the points Q0'are obtained, D1 and D2 are compared, and the image having the shorter distance is placed in the first display surface area 101', and the distance is obtained. The longer image may be placed in the second display surface area 102'. Instead of D1 and D2, the distances D3 and D4 in the vertical direction from the line segment L10 extending in the horizontal direction through the point Q0'may be detected.
次に、図10を参照する。図10(A)~(D)は、第1の視線方向の高さ位置を固定し、目位置に応じて表示領域の高さ位置を変化させる場合における、第1、第2の表示領域の設定の一例を示す図である。図10の例では、視認者の、上下方向(高さ方向)における目位置に応じて、第1の表示領域の広さ(サイズ、面積)を、適応的に調整することができる。
Next, refer to FIG. 10 (A) to 10 (D) show the first and second display areas in the case where the height position in the first line-of-sight direction is fixed and the height position of the display area is changed according to the eye position. It is a figure which shows an example of a setting. In the example of FIG. 10, the size (size, area) of the first display area can be adaptively adjusted according to the eye position in the vertical direction (height direction) of the viewer.
図10(A)に示されるように、目位置(4a~4c)の変化に応じて、例えば光学系に含まれる曲面ミラー(凹面鏡等であり、図13の符号133)が回転して、目位置に表示光が入射されるように自動調整される。このとき、目位置が高くなる(上側になる)と、目線(視線)は見下ろす方向に変化する(俯角が増大する方向に変化する)ため、表示領域100の位置も下側に移動し(表示領域100の上端の位置はH1となる)、目位置が低くなる(下側になる)と、目線(視線)は前方の遠くを見通すようになる(俯角が減少する方向に変化する)ことから、表示領域の位置も上側に移動し(表示領域100の上端の位置はH3となる)、目位置が上記の上側と下側の中間の位置にあるときは、表示領域100も、上記の各位置の中間に位置するように変化する(表示領域100の上端の位置はH2となる)。
As shown in FIG. 10 (A), for example, a curved mirror (concave mirror or the like, reference numeral 133 in FIG. 13) included in the optical system rotates in response to a change in the eye position (4a to 4c), and the eye. It is automatically adjusted so that the display light is incident on the position. At this time, when the eye position becomes higher (upward), the line of sight (line of sight) changes in the direction of looking down (changes in the direction of increasing the depression angle), so that the position of the display area 100 also moves downward (display). The position of the upper end of the region 100 becomes H1), and when the eye position becomes lower (lower side), the line of sight (line of sight) looks far ahead (changes in the direction in which the depression angle decreases). , The position of the display area also moves to the upper side (the position of the upper end of the display area 100 is H3), and when the eye position is in the middle position between the upper side and the lower side, the display area 100 also moves to each of the above. It changes to be located in the middle of the position (the position of the upper end of the display area 100 is H2).
ここで、上記の第1の視線方向700(710)の高さ位置を、例えば固定しておく(ここでは、中間の目位置4bの高さに固定して変化させないようにする)場合を想定する。図10(B)、(C)、(D)の何れにおいても、第1の視線方向700(710)の高さ位置は、中間の目位置4bに固定されている。
Here, it is assumed that the height position of the first line-of-sight direction 700 (710) is fixed, for example (here, it is fixed to the height of the intermediate eye position 4b so as not to be changed). do. In any of FIGS. 10B, 10C and 10D, the height position of the first line-of-sight direction 700 (710) is fixed to the intermediate eye position 4b.
一方、実際の目位置は、図4(B)では、中間の目位置4bであり、図4(C)では、最も低い目位置4aであり、図4(D)では、最も高い目位置4cとなる。上述のとおり、目位置に応じて表示領域100の高さ方向の位置(高さ位置)が変化する。表示領域100の高さ位置の変化に応じて、第2の視線方向U12と表示領域100との交点Q1の位置が変化し、この結果として、誘目性を低下させる範囲である第1の表示領域101が広がったり、縮小したりして、そのサイズが自動的に調整される。
On the other hand, the actual eye positions are the middle eye position 4b in FIG. 4 (B), the lowest eye position 4a in FIG. 4 (C), and the highest eye position 4c in FIG. 4 (D). It becomes. As described above, the position (height position) of the display area 100 in the height direction changes according to the eye position. The position of the intersection Q1 between the second line-of-sight direction U12 and the display area 100 changes according to the change in the height position of the display area 100, and as a result, the first display area is a range in which the attractiveness is reduced. The size of 101 is automatically adjusted as it expands or contracts.
例えば、目位置が高い場合(図4(D))は、視線(目線)の方向が低下して近方を見る傾向が生じるため、遠方の実景の視認に関係する第1の表示領域101は自動的に狭くなる。
For example, when the eye position is high (FIG. 4 (D)), the direction of the line of sight (line of sight) is lowered and there is a tendency to look near, so that the first display area 101 related to the visual recognition of the distant real scene is It automatically narrows.
一方、目位置が低くなって視線(目線)の方向が上昇するほど(図4(B)、(C)の場合)、視認者は、より遠くを見通すようになるため、これに合わせて第1の表示領域の範囲も自動的に広がることになる。図4(C)の場合において、視認者は、遠くを最も見通し易い状況になると考えられる。よって、図4(C)の場合に、第1の表示領域101の範囲が最大となる。このようにして、第1の表示領域101の範囲(サイズ、面積)が、目位置に対応して自動的に、適切に調整される。
On the other hand, the lower the eye position and the higher the direction of the line of sight (line of sight) (in the case of FIGS. 4B and 4C), the farther the viewer can see. The range of the display area of 1 is also automatically expanded. In the case of FIG. 4C, it is considered that the viewer is most likely to see far away. Therefore, in the case of FIG. 4C, the range of the first display area 101 is maximized. In this way, the range (size, area) of the first display area 101 is automatically and appropriately adjusted according to the eye position.
次に、図11を参照する。図11(A)~(D)は、第1の視線方向の高さ位置を固定し、目位置に応じて表示領域の高さ位置を変化させる場合における、第1、第2の表示領域の設定の他の例を示す図である。
Next, refer to FIG. 11 (A) to 11 (D) show the first and second display areas in the case where the height position in the first line-of-sight direction is fixed and the height position of the display area is changed according to the eye position. It is a figure which shows the other example of a setting.
図10の例では、第1の視線方向の高さ位置を固定していたが、図11の例では、実際の目の高さ位置に合わせて、第1の視線方向の高さも、その実際の目の高さ位置になるように適宜、移動させる。図11(A)、(B)、(C)の何れの場合であっても、第1の視線方向700(710)の高さ位置は、実際の目位置(4b、4a、4c)となるように調整されている。
In the example of FIG. 10, the height position in the first line-of-sight direction was fixed, but in the example of FIG. 11, the height in the first line-of-sight direction is actually the same as the actual height position of the eyes. Move as appropriate so that it is at eye level. In any of FIGS. 11A, 11B, and 11C, the height position of the first line-of-sight direction 700 (710) is the actual eye position (4b, 4a, 4c). It is adjusted so that.
この場合、第2の視線方向U30と表示領域100との交点Q1の位置の変動がより大きくなる傾向が生じる。図11の例においても、図10の例(第1の視線方向700(710)の高さ位置を固定する例)と同様に、目位置に応じて第1の表示領域101のサイズ(面積)は変化する。
In this case, the fluctuation of the position of the intersection Q1 between the second line-of-sight direction U30 and the display area 100 tends to be larger. Also in the example of FIG. 11, the size (area) of the first display area 101 according to the eye position is the same as the example of FIG. 10 (an example of fixing the height position in the first line-of-sight direction 700 (710)). Changes.
但し、この例では、交点Q1の位置の変動幅が大きいため、例えば、図11(C)のように、目位置が高くなり(目位置は最も高い位置4cにある)、視線の方向が見下ろす方向となった場合は、遠方の実景の視認に関係する第1の表示領域101は設定されない(言い換えれば、第1の表示領域の面積がゼロになる)。
However, in this example, since the fluctuation range of the position of the intersection Q1 is large, the eye position becomes high (the eye position is at the highest position 4c) as shown in FIG. 11C, and the direction of the line of sight looks down. In the case of the direction, the first display area 101 related to the visual recognition of the distant real scene is not set (in other words, the area of the first display area becomes zero).
図10、図11に示したように、表示領域100の上下方向の変化(高さ位置の変化)によって、又は、表示領域100の上下方向の変化(高さ位置の変化)と、第1の視線方向700(710)の基準位置の上下方向の変化(高さ位置の変化)との組み合わせによって、表示領域100と第2の視線方向との交点Q1の、上下方向の位置(高さ位置)を変化させ、これによって、第1の表示領域101の面積(サイズ)が自動的に調整され得る。これにより、第1の表示領域101の、好ましいサイズ調整が可能である。
As shown in FIGS. 10 and 11, the first change is due to a change in the display area 100 in the vertical direction (change in height position), or a change in the display area 100 in the vertical direction (change in height position). The vertical position (height position) of the intersection Q1 between the display area 100 and the second line-of-sight direction in combination with the vertical change (height position change) of the reference position in the line-of-sight direction 700 (710). By this, the area (size) of the first display area 101 can be automatically adjusted. This allows preferable size adjustment of the first display area 101.
次に、図12を参照する。図12(A)~(C)は、車両の前方の端部が上側に向く場合において、第1の視線方向が上側に向くのを抑制する補正処理を実施して、第1の表示領域のサイズを調整する例を示す図である。図12では、車両1の前方側の端部が向く方向が、標準の状態より斜め上方にずれた場合の、好ましい対応策の一例が示される。
Next, refer to FIG. 12 (A) to 12 (C) show the first display area by performing correction processing for suppressing the first line-of-sight direction from facing upward when the front end of the vehicle faces upward. It is a figure which shows the example which adjusts the size. FIG. 12 shows an example of a preferable countermeasure when the direction in which the front end portion of the vehicle 1 faces is shifted diagonally upward from the standard state.
車両1の乗員のバランスや荷物などのバランスによって、車両1のピッチング角が変化する場合がある。例えば、車両がトラックで、後方の荷台に積載物が大量にあって、トラックの前方側が、標準状態(通常状態)よりも斜め上(上方)に向く場合があり得る。このとき、視認者(運転者)の前方の実空間に仮想的に設けられる表示領域も、上側に移動することになり、こうなると、視認者(運転者)の目線も上向いて、より遠くを見易い状態となる。この場合には、第1の表示領域を広げて、遠くの実景を見易くする範囲を、より広くとるのが好ましいといえる。但し、何の工夫もなければ、第1、第2の表示領域101、102のサイズ(あるいは各領域の割合)は同じまま、表示領域100の全体が上側に移動するだけとなる。
The pitching angle of vehicle 1 may change depending on the balance of the occupants of vehicle 1 and the balance of luggage. For example, the vehicle may be a truck, and there may be a large amount of load on the rear carrier, and the front side of the truck may face diagonally upward (upward) from the standard state (normal state). At this time, the display area virtually provided in the real space in front of the viewer (driver) also moves to the upper side, and in this case, the line of sight of the viewer (driver) also faces upward and farther away. It will be easy to see. In this case, it can be said that it is preferable to widen the first display area to make it easier to see a distant actual scene. However, if no measures are taken, the size of the first and second display areas 101 and 102 (or the ratio of each area) remains the same, and the entire display area 100 is only moved upward.
ここで、図11(A)、(B)を参照する。図11(A)は標準の状態(ピッチ角0度)を示し、(B)は標準の状態からずれた状態(ピッチ角α)を示す。第1の表示領域101のサイズ、及び第2の表示領域102のサイズは同じである。
Here, refer to FIGS. 11A and 11B. FIG. 11A shows a standard state (pitch angle 0 degrees), and FIG. 11B shows a state deviated from the standard state (pitch angle α). The size of the first display area 101 and the size of the second display area 102 are the same.
そこで、図11(C)では、車両1の前方端の向きが上側に向いた場合でも、第1の表示領域101を定める基準となる第1の視線方向700(710)の上側へのずれを抑制して、例えば、好ましくは俯角0度の状態を維持するようにする。
Therefore, in FIG. 11C, even when the front end of the vehicle 1 is oriented upward, the deviation of the first line-of-sight direction 700 (710), which is a reference for defining the first display area 101, is upward. It is suppressed, for example, preferably maintaining a state of a depression angle of 0 degrees.
言い換えれば、上側へのずれを補正して、俯角0度(ピッチ角0度)に近づくように、第1の視線方向の変動を抑制するように補正する処理(補正処理)を実施する。図12(C)では、ピッチ角が0度のときと同じ向きとなるように補正される。なお、車両の前方端の向きが斜め上側にどれだけずれているかは、例えば、車両に設けたピッチ角センサ等からの情報に基づいて判定することができる。
In other words, a process (correction process) is performed to correct the upward deviation and suppress the fluctuation in the first line-of-sight direction so as to approach the depression angle of 0 degrees (pitch angle of 0 degrees). In FIG. 12C, the pitch angle is corrected to be the same as when the pitch angle is 0 degrees. It should be noted that how much the direction of the front end of the vehicle is displaced diagonally upward can be determined based on, for example, information from a pitch angle sensor or the like provided on the vehicle.
第1の視線方向700(710)の上側へのずれが抑制される(好ましくは俯角0度の状態に維持される)と、表示領域100は上側に移動しているので、第2の視線方向U30との交点Q1の位置は、相対的に下側へと移動する。
When the upward shift of the first line-of-sight direction 700 (710) is suppressed (preferably maintained at a depression angle of 0 degrees), the display area 100 has moved upward, so that the second line-of-sight direction The position of the intersection Q1 with U30 moves relatively downward.
交点Q1の位置は、第1、第2の各表示領域101、102の境界線の位置を定める重要な要因でもあるため、交点Q1の位置が下に移動することで、第1の表示領域101は広がり、従って、遠方の実景を見易くする範囲(誘目性低下の範囲)が広がり、視認者(運転者)が、前方や周辺の実景を視認し易い状態を維持する(言い換えれば、良好な視界を維持できる等)の効果が得られる。
Since the position of the intersection Q1 is also an important factor for determining the position of the boundary line of the first and second display areas 101 and 102, the position of the intersection Q1 moves downward to the first display area 101. Therefore, the range that makes it easier to see the actual view in the distance (the range of reduced attractiveness) is expanded, and the viewer (driver) maintains a state in which it is easy to see the actual view in front of and around (in other words, good visibility). Can be maintained, etc.).
次に、図13を参照する。図13は、HUD装置の内部の構成例を示す図である。HUD装置10の本体20は、表示制御部(制御部)120と、画像表示部(表示部)140と、投光部155と、スクリーン129と、曲面ミラー(凹面鏡等)133と、曲面ミラー用アクチュエータ131と、を有する。画像表示部140は、画像生成部141と、表示パネル143(表示面PLを備える)と、を有する。表示制御部(制御部)120には、目位置情報や、曲面ミラー133の回転角情報等が適宜、供給される。
Next, refer to FIG. FIG. 13 is a diagram showing an example of the internal configuration of the HUD device. The main body 20 of the HUD device 10 includes a display control unit (control unit) 120, an image display unit (display unit) 140, a light projecting unit 155, a screen 129, a curved mirror (concave mirror, etc.) 133, and a curved mirror. It has an actuator 131 and. The image display unit 140 includes an image generation unit 141 and a display panel 143 (including a display surface PL). The display control unit (control unit) 120 is appropriately supplied with eye position information, rotation angle information of the curved mirror 133, and the like.
次に、図14を参照する。図14は、HUD装置のシステム構成の例を示す図である。HUD装置10は、I/Oインタフェース30と、プロセッサ(制御装置)160と、画像処理部200と、画像表示部140と、記憶部300と、を有する。
Next, refer to FIG. FIG. 14 is a diagram showing an example of the system configuration of the HUD device. The HUD device 10 includes an I / O interface 30, a processor (control device) 160, an image processing unit 200, an image display unit 140, and a storage unit 300.
I/Oインタフェース30には、道路情報データベース403と、自車位置検出部405と、車外センサ407と、視線方向検出部409と、目位置検出部411と、携帯情報端末413と、車両ECU415と、が接続される。
The I / O interface 30 includes a road information database 403, a vehicle position detection unit 405, an external sensor 407, a line-of-sight direction detection unit 409, an eye position detection unit 411, a portable information terminal 413, and a vehicle ECU 415. , Is connected.
車両ECU415には、ピッチ角センサ417や舵角センサ419(図5(C)、(D(D)で示した処理に必要となる)等から、適宜、必要な情報が提供される。また、I/Oインタフェース420は、社外通信接続機器420と接続される。
The vehicle ECU 415 is appropriately provided with necessary information from the pitch angle sensor 417, the steering angle sensor 419 (necessary for the processing shown in FIGS. 5C and 5D), and the like. The I / O interface 420 is connected to the external communication connection device 420.
また、記憶部300には、誘目性/視認性変更モジュール326が記憶(搭載)されている。誘目性/視認性変更モジュール326は、誘目性低減処理の適用領域設定部(誘目性低減範囲決定部)327と、誘目性低減処理の内容決定部(誘目性低減態様決定部)329と、を有する。プロセッサ(制御装置)160が、誘目性低減処理の適用領域設定部(誘目性低減範囲決定部)327に従って動作することで、機能ブロックとしての第1の表示領域設定部(不図示)が構築される。
In addition, the storage unit 300 stores (mounts) the attractiveness / visibility change module 326. The attractiveness / visibility change module 326 includes an application area setting unit (attractiveness reduction range determination unit) 327 of the attractiveness reduction process and a content determination unit (attractability reduction mode determination unit) 329 of the attractiveness reduction process. Have. The processor (control device) 160 operates according to the application area setting unit (attractability reduction range determination unit) 327 of the attractiveness reduction process, whereby a first display area setting unit (not shown) as a functional block is constructed. To.
また、プロセッサ(制御装置)160又は画像処理部140が、誘目性低減処理の内容決定部(誘目性低減態様決定部)329に従って動作することで、機能ブロックとしての誘目性低減処理部(不図示)が構築される。
Further, the processor (control device) 160 or the image processing unit 140 operates according to the content determination unit (attraction reduction mode determination unit) 329 of the attraction reduction processing, so that the attraction reduction processing unit (not shown) as a functional block. ) Is constructed.
次に、図15を参照する。図15は、第1、第2の各表示領域を設定する手順例を示すフローチャートである。
Next, refer to FIG. FIG. 15 is a flowchart showing a procedure example for setting the first and second display areas.
ステップS110では、第1の表示領域を設定するのに有用な情報を取得する。例えば、凹面鏡(曲面ミラー)の回転角度情報を取得すること(ステップS111)、目位置(目高さ)情報を取得すること(ステップS112)等が、実行されてもよい。
In step S110, information useful for setting the first display area is acquired. For example, acquisition of rotation angle information of the concave mirror (curved surface mirror) (step S111), acquisition of eye position (eye height) information, and the like may be executed.
ステップS120では、第1の表示領域(誘目性低減処理の適用領域)の範囲を設定する。このステップS120には、例えば、曲面ミラーの角度と第1の表示領域の範囲とが対応付けられたテーブルデータに基づき、第1の表示領域を設定すること(ステップS121)が含まれてもよい。
In step S120, the range of the first display area (the area to which the attractiveness reduction processing is applied) is set. This step S120 may include, for example, setting a first display area (step S121) based on the table data in which the angle of the curved surface mirror and the range of the first display area are associated with each other. ..
また、第1、第2の各表示領域の設定位置(設計値、デフォルト値等)と、目位置と、に基づいて、目位置を基準とした第1の視線方向に近い領域を、第1の表示領域に設定すること(ステップS122)が含まれてもよい。
Further, based on the set position (design value, default value, etc.) of each of the first and second display areas and the eye position, the area close to the first line-of-sight direction with respect to the eye position is the first. It may be included to set in the display area of (step S122).
また、凹面鏡の角度から推測される第1、第2の各表示領域の位置と、目位置と、に基づいて、目位置を基準とした第1の視線方向に近い領域を、第1の表示領域に設定すること(ステップS123)が含まれてもよい。
Further, based on the positions of the first and second display areas estimated from the angle of the concave mirror and the eye position, the area close to the first line-of-sight direction with respect to the eye position is displayed as the first display. Setting in the area (step S123) may be included.
以上説明したように、本発明によれば、例えば、遠方を見通すようにして前方に視線を向ける視認者が、前方の実景(前景)に重なって表示されるHUD装置による画像(虚像)によって視線が遮られ、例えば、前景の視認性が低下すること、画像(虚像)に視覚的注意が奪われ、視認者の前景への視覚的注意が低下すること、あるいは、画像(虚像)を煩わしく感じること、といった視認者の負担(心理的な負担を含む)を、効果的に軽減することができる。
As described above, according to the present invention, for example, a viewer who looks forward while looking into a distance looks at an image (virtual image) by a HUD device displayed so as to overlap the actual view (foreground) in front of the viewer. Is blocked, for example, the visibility of the foreground is reduced, the visual attention to the image (virtual image) is deprived, the visual attention to the foreground of the viewer is reduced, or the image (virtual image) is annoying. It is possible to effectively reduce the burden on the viewer (including the psychological burden) such as that.
本発明において、HUD装置は広義に解釈するものとし、ゲーム装置やシミュレーション装置も含めて解釈可能である。また、視認者や運転者等の用語も広義に解釈し、車両も、例えば広く乗り物を意味する用語として解釈可能である。
In the present invention, the HUD device is to be interpreted in a broad sense, and can be interpreted including a game device and a simulation device. In addition, terms such as a visual observer and a driver can be interpreted in a broad sense, and a vehicle can also be broadly interpreted as a term meaning a vehicle, for example.
本発明は、上述の例示的な実施形態に限定されず、また、当業者は、上述の例示的な実施形態を特許請求の範囲に含まれる範囲まで、容易に変更することができるであろう。
The present invention is not limited to the above-mentioned exemplary embodiments, and those skilled in the art will be able to easily modify the above-mentioned exemplary embodiments to the extent included in the claims. ..
1・・・車両(自車両)、2・・・ウインドシールド、5・・・ダッシュボード、10・・・HUD装置、20・・・HUD装置10の本体、30・・・I/Oインタフェース、100・・・表示領域(仮想的な表示領域、虚像表示面)、101・・・第1の表示領域、102・・・第2の表示領域、120・・・表示制御部(制御部)、140・・・画像表示部(表示部)、155・・・投光部、129・・・スクリーン、133・・・曲面ミラー(凹面鏡等)、131・・・曲面ミラー用アクチュエータ131、141・・・画像生成部141、143・・・表示パネル143、160・・・プロセッサ(制御装置)、200・・・画像処理部、140・・・画像表示部、300・・・記憶部、700.710・・・第1の視線方向、U10、U12、U30・・・第2の視線方向、Q1・・・表示領域と第2の視線方向との交点。
1 ... Vehicle (own vehicle), 2 ... Windshield, 5 ... Dashboard, 10 ... HUD device, 20 ... HUD device 10, main body, 30 ... I / O interface, 100 ... Display area (virtual display area, virtual image display surface), 101 ... First display area, 102 ... Second display area, 120 ... Display control unit (control unit), 140 ... Image display unit (display unit), 155 ... Projection unit, 129 ... Screen, 133 ... Curved mirror (concave mirror, etc.), 131 ... Curved mirror actuator 131, 141 ... Image generation unit 141, 143 ... Display panel 143, 160 ... Processor (control device), 200 ... Image processing unit, 140 ... Image display unit, 300 ... Storage unit, 700.710 ... First line-of-sight direction, U10, U12, U30 ... Second line-of-sight direction, Q1 ... Intersection point between the display area and the second line-of-sight direction.
Claims (12)
- 画像を表示する画像表示部と、
前記画像表示部が表示する前記画像の光を被投影部材に向けて投影することで、視認者の前方の実空間における仮想的な表示領域内で、前記視認者に前記画像の虚像を視認させる光学系と、
前記画像表示部における前記画像の表示を制御する制御部と、
を有し、
前記視認者の目位置、又は前記目位置に相当する基準位置を起点とする、俯角0度の前記視認者の前方に向かう視線の方向を第1の視線方向とし、
前記第1の視線方向から傾斜した俯角m度(mは0より大きい整数)の、前記視認者の視線の方向を第2の視線方向とし、
前記第1の視線方向に直交し、前記視認者の左右の目を結ぶ線分に沿う方向を左右方向とし、
前記第1の視線方向及び前記左右方向に直交する線分に沿う方向を上下方向又は高さ方向とし、前記実空間における地面又は地面に相当する面から離れる方向を上方向、近づく方向を下方向とするとき、
前記制御部は、
前記仮想的な表示領域を、前記仮想的な表示領域と前記第2の視線方向との交点を基準として、前記第1の視線方向に近い側の第1の表示領域と、第1の表示領域以外の第2の表示領域とに分けることで、前記第1の表示領域及び前記第2の表示領域を設定し、
前記第1の表示領域に表示される第1の表示オブジェクトの誘目性を、前記第2の表示領域に表示される第2の表示オブジェクトの誘目性よりも低くする制御を行う、
ことを特徴とするヘッドアップディスプレイ装置。 An image display unit that displays an image and
By projecting the light of the image displayed by the image display unit toward the projected member, the viewer can visually recognize the virtual image of the image within a virtual display area in the real space in front of the viewer. Optical system and
A control unit that controls the display of the image in the image display unit,
Have,
The direction of the line of sight toward the front of the viewer with a depression angle of 0 degrees, starting from the eye position of the viewer or the reference position corresponding to the eye position, is defined as the first line-of-sight direction.
The direction of the line of sight of the viewer at a depression angle m degree (m is an integer larger than 0) inclined from the first line of sight is defined as the second line of sight.
The direction perpendicular to the first line-of-sight direction and along the line segment connecting the left and right eyes of the viewer is defined as the left-right direction.
The direction along the first line-of-sight direction and the line segment orthogonal to the left-right direction is the vertical direction or the height direction, the direction away from the ground or the surface corresponding to the ground in the real space is upward, and the approaching direction is downward. When
The control unit
With the virtual display area as a reference, the first display area on the side closer to the first line-of-sight direction and the first display area with the intersection of the virtual display area and the second line-of-sight direction as a reference. By dividing into a second display area other than the above, the first display area and the second display area are set.
Control is performed to make the attractiveness of the first display object displayed in the first display area lower than the attractiveness of the second display object displayed in the second display area.
A head-up display device characterized by that. - 第1の態様に従属する第2の態様において、
前記第1の表示領域と前記第2の表示領域は、
前記仮想的な表示領域と前記第2の視線方向との交点を通り、前記左右方向に延び、かつ前記仮想的な表示領域を横断する線分の全部を境界線として分けられており、かつ前記第1の表示領域は前記第2の表示領域の上側に位置する、
又は、
前記仮想的な表示領域と前記第2の視線方向との交点を通り、前記左右方向に延び、かつ前記仮想的な表示領域を横断する線分の一部を境界線として分けられており、かつ前記第2の表示領域の一部の上側に前記第1の表示領域が位置する、
又は、
前記仮想的な表示領域と前記第2の視線方向との交点を通る部分円弧、又は曲線を境界線として分けられており、かつ前記第1の表示領域は前記第2の表示領域の上側に位置する、
ことを特徴とするヘッドアップディスプレイ装置。 In the second aspect, which is subordinate to the first aspect,
The first display area and the second display area are
The entire line segment extending in the left-right direction through the intersection of the virtual display area and the second line-of-sight direction and crossing the virtual display area is divided as a boundary line and described above. The first display area is located above the second display area.
Or,
A part of a line segment that passes through the intersection of the virtual display area and the second line-of-sight direction, extends in the left-right direction, and crosses the virtual display area is divided as a boundary line. The first display area is located above a part of the second display area.
Or,
The partial arc or curve passing through the intersection of the virtual display area and the second line-of-sight direction is divided as a boundary line, and the first display area is located above the second display area. do,
A head-up display device characterized by that. - 前記制御部は、
前記第1の表示領域内において、上下方向の位置に応じて誘目性に差を設け、表示オブジェクトを上側に配置する場合の誘目性を、下側に配置する場合の誘目性よりも低くする、
ことを特徴とする、請求項1又は2に記載のヘッドアップディスプレイ装置。 The control unit
Within the first display area, a difference in attractiveness is provided according to the position in the vertical direction, and the attractiveness when the display object is arranged on the upper side is lower than the attractiveness when the display object is arranged on the lower side.
The head-up display device according to claim 1 or 2, wherein the head-up display device is characterized in that. - 前記制御部は、
表示オブジェクトが、前記第1の表示領域及び前記第2の表示領域にまたがって表示される場合、その表示オブジェクトの全体の誘目性を低くする、
ことを特徴とする、請求項1乃至3の何れか1項に記載のヘッドアップディスプレイ装置。 The control unit
When the display object is displayed across the first display area and the second display area, the overall attractiveness of the display object is reduced.
The head-up display device according to any one of claims 1 to 3, wherein the head-up display device is characterized in that. - 前記ヘッドアップディスプレイは車両に搭載される、ことを特徴とする、請求項1乃至4の何れか1項に記載のヘッドアップディスプレイ装置。 The head-up display device according to any one of claims 1 to 4, wherein the head-up display is mounted on a vehicle.
- 前記制御部は、
前記車両の前方側の端部が向く方向が、標準の状態より斜め上方にずれた場合には、前記第1の視線方向が、前記斜め上方へのずれに応じて変動することを抑制する補正処理を実施する、
ことを特徴とする、請求項5に記載のヘッドアップディスプレイ装置。 The control unit
Correction to prevent the first line-of-sight direction from fluctuating according to the diagonally upward deviation when the direction toward which the front end of the vehicle faces deviates diagonally upward from the standard state. Carry out the process,
The head-up display device according to claim 5, wherein the head-up display device is characterized in that. - 前記制御部は、
前記車両の速度が遅い場合は、速い場合に比べて、前記第1の表示領域を、下側に移動させる、
ことを特徴とする、請求項5又は6に記載のヘッドアップディスプレイ装置。 The control unit
When the speed of the vehicle is slow, the first display area is moved downward as compared with the case where the speed is high.
The head-up display device according to claim 5 or 6, wherein the head-up display device is characterized in that. - 前記制御部は、
前記車両の速度が遅い場合は、速い場合に比べて、前記第1の表示領域を、下側に拡張させる、
ことを特徴とする、請求項5又は6に記載のヘッドアップディスプレイ装置。 The control unit
When the speed of the vehicle is slow, the first display area is expanded downward as compared with the case where the speed is high.
The head-up display device according to claim 5 or 6, wherein the head-up display device is characterized in that. - 前記制御部は、
前記車両が右折するとき、及び左折するときの少なくとも一方において、前記第1の表示領域を左右方向に拡張させると共に、右折のときは右側に拡張させ、左折のときは左側に拡張させる、
ことを特徴とする請求項5乃至8の何れか1項に記載のヘッドアップディスプレイ装置。 The control unit
When the vehicle makes a right turn and at least one of the left turns, the first display area is expanded in the left-right direction, expanded to the right when turning right, and expanded to the left when turning left.
The head-up display device according to any one of claims 5 to 8. - 前記光学系は曲面ミラーを有し、前記視認者の目位置の変化に応じて前記曲面ミラーが回転し、これに伴って前記仮想的な表示領域の実空間における位置が上下方向に変化し、
前記仮想的な表示領域の上下方向の変化によって、
又は、
前記仮想的な表示領域の上下方向の変化と、前記第1の視線方向の前記基準位置の上下方向の変化と、によって、
前記仮想的な表示領域と前記第2の視線方向との交点の、上下方向の位置が変化し、これによって、前記第1の表示領域の面積が調整される、
ことを特徴とする、請求項1乃至9の何れか1項に記載のヘッドアップディスプレイ装置。 The optical system has a curved mirror, and the curved mirror rotates in response to a change in the eye position of the viewer, and the position of the virtual display area in the real space changes in the vertical direction accordingly.
Due to the vertical change of the virtual display area,
Or,
By the vertical change of the virtual display area and the vertical change of the reference position in the first line-of-sight direction,
The vertical position of the intersection of the virtual display area and the second line-of-sight direction changes, whereby the area of the first display area is adjusted.
The head-up display device according to any one of claims 1 to 9, wherein the head-up display device is characterized in that. - 前記表示オブジェクトの誘目性を低くすることは、
低輝度とすること、
及び、
サイズを小さくすること、
及び、
コントラストを低コントラストとすること、
及び、
色彩を原色から淡い色に変更すること、
及び、
点滅状態において、点滅速度を遅くする、又は点滅しないようにすること、
及び、
同じ表示オブジェクトが表示される期間に関して、表示継続期間を短くすること、
及び、
動画の表示に関して、低速化すること、低周期とすること、静止画とすること、の少なくとも1つを実施すること、
及び、
前記表示オブジェクトの注目度の高い部分を非表示とする、又は縮小すること、
及び、
前記表示オブジェクトの外観を変化させること、
の少なくとも1つによって実現される、
ことを特徴とする、請求項1乃至10の何れか1項に記載のヘッドアップディスプレイ装置。 Reducing the attractiveness of the display object is
Low brightness,
as well as,
To reduce the size,
as well as,
To make the contrast low,
as well as,
Changing the color from the primary color to a light color,
as well as,
In the blinking state, slow down the blinking speed or prevent it from blinking,
as well as,
To shorten the display duration for the period when the same display object is displayed,
as well as,
Regarding the display of moving images, at least one of slowing down, setting a low cycle, and making a still image,
as well as,
Hiding or reducing the high-profile part of the display object,
as well as,
Changing the appearance of the display object,
Realized by at least one of
The head-up display device according to any one of claims 1 to 10, wherein the head-up display device is characterized in that. - 前記表示オブジェクトの誘目性を低くすることは、
前記表示オブジェクトの色を、前記表示オブジェクトが重畳される実景の色に対する補色を含む反対色として視認性の低下を抑制しつつ、
一方、低輝度化、サイズの縮小、前記表示オブジェクトの注目度の高い部分を非表示とする、又は縮小すること、前記表示オブジェクトの外観を変化させること、の少なくとも1つを実施することによって実現される、
ことを特徴とする、請求項1乃至10の何れか1項に記載のヘッドアップディスプレイ装置。 Reducing the attractiveness of the display object is
While suppressing the deterioration of visibility, the color of the display object is regarded as the opposite color including the complementary color to the color of the actual scene on which the display object is superimposed.
On the other hand, it is realized by reducing the brightness, reducing the size, hiding or reducing the high-profile part of the display object, and changing the appearance of the display object. Be done,
The head-up display device according to any one of claims 1 to 10, wherein the head-up display device is characterized in that.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2022540273A JPWO2022024962A1 (en) | 2020-07-27 | 2021-07-26 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020126873 | 2020-07-27 | ||
JP2020-126873 | 2020-07-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022024962A1 true WO2022024962A1 (en) | 2022-02-03 |
Family
ID=80035657
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2021/027459 WO2022024962A1 (en) | 2020-07-27 | 2021-07-26 | Head-up display device |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPWO2022024962A1 (en) |
WO (1) | WO2022024962A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11467415B1 (en) * | 2021-07-21 | 2022-10-11 | GM Global Technology Operations LLC | Viewer input-based control in a multi-image augmented reality head up display system in a vehicle |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016107945A (en) * | 2014-12-10 | 2016-06-20 | 株式会社リコー | Information providing device, information providing method, and control program for providing information |
JP2016172469A (en) * | 2015-03-16 | 2016-09-29 | 株式会社デンソー | Image forming apparatus |
JP2018092442A (en) * | 2016-12-05 | 2018-06-14 | 株式会社デンソー | Display control unit for vehicle and display system for vehicle |
JP2018120135A (en) * | 2017-01-26 | 2018-08-02 | 日本精機株式会社 | Head-up display |
JP2019219547A (en) * | 2018-06-21 | 2019-12-26 | パナソニックIpマネジメント株式会社 | Video display system, video display method, program, and moving body |
-
2021
- 2021-07-26 JP JP2022540273A patent/JPWO2022024962A1/ja active Pending
- 2021-07-26 WO PCT/JP2021/027459 patent/WO2022024962A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016107945A (en) * | 2014-12-10 | 2016-06-20 | 株式会社リコー | Information providing device, information providing method, and control program for providing information |
JP2016172469A (en) * | 2015-03-16 | 2016-09-29 | 株式会社デンソー | Image forming apparatus |
JP2018092442A (en) * | 2016-12-05 | 2018-06-14 | 株式会社デンソー | Display control unit for vehicle and display system for vehicle |
JP2018120135A (en) * | 2017-01-26 | 2018-08-02 | 日本精機株式会社 | Head-up display |
JP2019219547A (en) * | 2018-06-21 | 2019-12-26 | パナソニックIpマネジメント株式会社 | Video display system, video display method, program, and moving body |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11467415B1 (en) * | 2021-07-21 | 2022-10-11 | GM Global Technology Operations LLC | Viewer input-based control in a multi-image augmented reality head up display system in a vehicle |
Also Published As
Publication number | Publication date |
---|---|
JPWO2022024962A1 (en) | 2022-02-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6780663B2 (en) | Information display device | |
JP5715778B2 (en) | Image display device for vehicle | |
KR20180093583A (en) | Head up display apparatus having multi display field capable of individual control and display control method for head up dispaly apparatus | |
JP6899082B2 (en) | Head-up display | |
JP2007512636A (en) | Method and system for supporting route control | |
US11106045B2 (en) | Display system, movable object, and design method | |
JP2008001182A (en) | Vehicular visual information presenting device and method | |
JPWO2018168595A1 (en) | Head-up display device | |
CN110967833A (en) | Display device, display control method, and storage medium | |
CN112558299A (en) | Head-up display device for augmented reality | |
JP7358909B2 (en) | Stereoscopic display device and head-up display device | |
JP2018120135A (en) | Head-up display | |
WO2022024962A1 (en) | Head-up display device | |
JP2022084266A (en) | Display control device, display device, and image display control method | |
JP2020095155A (en) | Virtual image display system, display control device and display control program | |
WO2018105585A1 (en) | Head-up display | |
JP7088151B2 (en) | Display control device, display control program and head-up display | |
JP7223283B2 (en) | IMAGE PROCESSING UNIT AND HEAD-UP DISPLAY DEVICE INCLUDING THE SAME | |
WO2021039579A1 (en) | Head-up display device | |
JP2019032362A (en) | Head-up display device and navigation device | |
US20200049984A1 (en) | Display device, display control method, storage medium | |
JP2021110904A (en) | Head-up display device | |
JP2022114602A (en) | Display control device, display device, display system, and image display control method | |
WO2023054305A1 (en) | Display control device, display device, and display control method | |
JP2022036432A (en) | Head-up display device, display control device, and method for controlling head-up display device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 21850843 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2022540273 Country of ref document: JP Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 21850843 Country of ref document: EP Kind code of ref document: A1 |