JP5819689B2 - Head-up display device - Google Patents

Description

  The present invention relates to a head-up display device.

  A head-up display device is a device that can directly display information in the human visual field, and is arranged by tilting the half mirror with respect to the display surface and observing the half mirror from a direction substantially parallel to the display surface. Thus, it is a device that can show a virtual image as if the image displayed on the display surface is floating in the air. For example, in the field of aviation, this head-up display device displays a virtual image using a windshield or the like disposed in front of the pilot, and the virtual image is displayed in the pilot's visual field without blocking the pilot's visual field. And is used for applications that support pilot operations.

  By the way, in recent years, not only the above uses but also applications to other fields such as exhibitions are being studied. For example, Patent Document 1 below discloses a head-up display device in which two V-shaped half mirrors and a video display surface are directed to the V-shaped opening.

Japanese Patent No. 2616716

  However, the head-up display device shown by the technique described in Patent Document 1 can only arrange a virtual image in a single layer. Further, the head-up display device can only observe a virtual image from one direction (and the opposite direction). That is, if virtual images can be superimposed and observed from other directions, a higher level of display is possible.

  In view of the above problems, an object of the present invention is to provide a head-up display device that can superimpose virtual images. Furthermore, it aims at providing the head-up display apparatus which can observe a virtual image also from several directions.

  A head-up display device according to a first aspect for solving the above problems is a display device having a rectangular display surface, and a first device disposed on the display device along a long side direction of the display surface of the display device. A virtual display unit and a second virtual display unit.

  Although not limited in this respect, the first virtual display unit and the second virtual display unit are each a first half inclined about 45 degrees in the long side direction with respect to the display surface of the display device. The first half mirror of the first virtual display unit and the first half mirror of the second virtual display unit are preferably arranged substantially in parallel.

  Further, from this point of view, the first virtual display unit is tilted about 45 degrees in the short side direction of the display surface with respect to the display surface, and each of the first virtual display units is arranged in a V shape. It is preferable to have a second half mirror and a third half mirror.

  Further, from this point of view, the first virtual display unit is tilted about 45 degrees in the long side direction of the display surface with respect to the display unit, and the first virtual display unit in the first virtual display unit is not limited thereto. It is preferable to have a fourth half mirror arranged opposite to the half mirror.

  Moreover, although it does not necessarily limit in this viewpoint, it is preferable that the height of the 1st half mirror of a 1st virtual display part and the 1st half mirror of a 2nd virtual display part is equal.

  Further, in this respect, although not limited, the lower width of the first half mirror of the first virtual display unit and the first half mirror of the second virtual display unit is the short side of the display surface. Preferably equal to the length.

  Moreover, although it does not necessarily limit in this viewpoint, it is preferable that the 1st virtual display part becomes a quadrangular pyramid shape by the 1st thru | or 4th half mirror.

  Moreover, although it does not necessarily limit in this viewpoint, it is preferable to have a 3rd virtual display part further along the long side direction of the display surface of a display apparatus.

  Moreover, in this viewpoint, although not necessarily limited, it further includes a third virtual display unit along the long side direction of the display surface of the display device, and the third virtual display unit displays The first half mirror of the first virtual display unit and the second virtual display unit are configured to have a first half mirror inclined by about 45 degrees in the long side direction with respect to the display surface of the device. It is preferable that the first half mirror and the first half mirror of the third virtual display unit are arranged substantially in parallel.

  In view of the above problems, the present invention can provide a head-up display device that can superimpose virtual images, and further provides a head-up display device that can observe virtual images from a plurality of directions. You can also do it.

1 is a schematic top view of a head-up display device according to Embodiment 1. FIG. 1 is a schematic cross-sectional view of a head-up display device according to Embodiment 1. FIG. 1 is a schematic cross-sectional view of a head-up display device according to Embodiment 1. FIG. It is a schematic top view of the head-up display device according to the second embodiment. It is a schematic sectional drawing of the head-up display apparatus which concerns on Embodiment 2. FIG. It is a schematic sectional drawing of the head-up display apparatus which concerns on Embodiment 2. FIG. It is a schematic top view of the head-up display device according to the third embodiment. It is a schematic sectional drawing of the head-up display apparatus which concerns on Embodiment 3. FIG. It is a schematic sectional drawing of the head-up display apparatus which concerns on Embodiment 3. FIG. FIG. 6 is a schematic top view of a head-up display device according to a fourth embodiment. It is a schematic sectional drawing of the head-up display apparatus which concerns on Embodiment 4. It is a schematic sectional drawing of the head-up display apparatus which concerns on Embodiment 4. FIG. 10 is a schematic top view of a head-up display device according to a fifth embodiment. It is a schematic sectional drawing of the head-up display apparatus which concerns on Embodiment 5. FIG. It is a schematic sectional drawing of the head-up display apparatus which concerns on Embodiment 5. FIG. FIG. 10 is a schematic top view of a head-up display device according to a sixth embodiment. It is a schematic sectional drawing of the head-up display apparatus which concerns on Embodiment 6. FIG. It is a schematic sectional drawing of the head-up display apparatus which concerns on Embodiment 6. FIG. FIG. 10 is a schematic top view of a head-up display device according to a seventh embodiment. It is a schematic sectional drawing of the head-up display apparatus which concerns on Embodiment 7. FIG. It is a schematic sectional drawing of the head-up display apparatus which concerns on Embodiment 7. FIG. FIG. 10 is a schematic top view of a head-up display device according to an eighth embodiment. It is a schematic sectional drawing of the head-up display apparatus which concerns on Embodiment 8. FIG. It is a schematic sectional drawing of the head-up display apparatus which concerns on Embodiment 8. FIG. It is explanatory drawing of the frame member which concerns on supplement of embodiment. It is a schematic top view of the head-up display device according to the ninth embodiment. It is a schematic sectional drawing of the head-up display apparatus which concerns on Embodiment 9. FIG. It is a schematic sectional drawing of the head-up display apparatus which concerns on Embodiment 9. FIG.

  Embodiments of the present invention will be described below with reference to the drawings. However, the present invention can be implemented in many different modes and is not limited to the embodiments shown below. Note that in this specification, portions having the same or similar functions are denoted by the same reference numerals, and repeated description thereof is omitted.

(Embodiment 1)
FIG. 1 is a schematic view of a head-up display device (hereinafter referred to as “the present device”) 1 according to the present embodiment as viewed from above, and FIG. 2 illustrates the device from the side (along the short side direction). FIG. 3 is a schematic cross-sectional view when viewed from the side (along the long side direction).

  As shown in these drawings, the present device 1 includes a display device 2 having a rectangular display surface 21 and a first device disposed on the display device 2 along the long side direction 22 of the display surface of the display device. A virtual display unit 3 and a second virtual display unit 4.

  In the present embodiment, the display device 2 is a device that can display an image on the display surface 21 and can use a commercially available display device. Examples of the display device include, but are not limited to, a liquid crystal display device and a plasma display device. In the present embodiment, the display device 2 has the rectangular display surface 21 as described above. The display surface 21 of the display device 2 that is generally available on the market is a rectangle. By using this rectangle, the virtual images 91 and 92 are superimposed, and further, the virtual image can be observed from a plurality of directions. . The ratio of the length of the long side 22 of the rectangle to the length of the short side 23 is not limited, but the length of the short side 23 is set to 1 in consideration of the size of a commercially available display device. In this case, the range is preferably 1.2 or more and 2.5 or less.

  Further, in the present embodiment, the virtual display unit is a part that transmits a part of incident light and reflects a part thereof, thereby allowing an observer to recognize a virtual image. Configured. Here, the half mirror is capable of transmitting a part of the incident light and reflecting a part thereof, and is not limited as long as it has this function. The rate is preferably in the range of 20% to 80%, more preferably in the range of 40% to 60%.

  Further, in the present embodiment, the first virtual display unit 3 and the second virtual display unit 4 are each a first half mirror inclined about 45 degrees in the long side direction 22 with respect to the display surface 21 of the display device 2. The first half mirror 31 of the first virtual display unit 3 and the first half mirror 41 of the second virtual display unit 4 are arranged substantially parallel to each other. Here, “first” and “second” are written in the virtual display part and the half mirror, but this is a notation used for distinguishing a plurality of virtual display parts and half mirrors, and for the function. In principle, it is not intended to have a special meaning. Here, “substantially parallel” means that it is preferably completely parallel, but an error of about several degrees is allowed. Specifically, it means that the angle formed by the two half mirrors is 5 degrees or less (the same applies in the case of “substantially parallel” hereinafter).

  In the present embodiment, as described above, the first half mirror 31 of the first virtual display unit 3 is disposed with an inclination of about 45 degrees in the long side direction 22 with respect to the display surface 21 of the display device 2. With this arrangement, for example, as shown in FIG. 2, when the observer views from one side in the long side direction 22, the illusion is that an image is present at the position 91. Here, “about 45 degrees” is preferably completely 45 degrees, but it means that an error of several degrees is allowed, specifically, it is 40 degrees or more and 50 degrees or less. It is within the range (the same applies in the case of “about 45 degrees” hereinafter).

  In the present embodiment, as described above, the first half mirror 31 of the first virtual display unit 3 and the first half mirror 41 of the second virtual display unit 4 are arranged substantially in parallel. In other words, the first half mirror 41 of the second virtual display unit 4 is also inclined with respect to the display surface 21 of the display device 2 in the long side direction 22 by about 45 degrees. In this way, as shown in FIG. 2, when viewed from one side in the long side direction 22, a virtual image can be confirmed not only at the position 91 but also at the position 92, so that the virtual image can be observed in multiple layers. become.

  Further, in the present embodiment, the first virtual display unit 3 is arranged so as to be inclined about 45 degrees in the short side direction 23 of the display surface 21 with respect to the display surface 21 and to be V-shaped. A second half mirror 32 and a third half mirror 33 are provided. By doing so, the observer can confirm the virtual image at the positions 93 and 94 when viewed from the short side direction as well as the long side direction, and can confirm the virtual image in a multifaceted manner. effective.

  In the present embodiment, the first virtual display unit 3 is inclined about 45 degrees in the long side direction 22 of the display surface 21 with respect to the display surface 21 of the display device 2, and the first virtual display unit 3 It has the 4th half mirror 34 arrange | positioned facing the 1st half mirror 31 so that it may become a V shape. In this way, when the first virtual display unit 3 is viewed from one of the long sides (second virtual display unit side), a virtual image can be displayed at the position 95 for the observer, Virtual images can be observed from many directions.

  In the present embodiment, the first virtual display unit 4 forms a regular quadrangular pyramid by triangular first to fourth half mirrors as is apparent from the above description and drawings. The display part 4 is comprised only from the square-shaped 1st half mirror 41 as a half mirror. By doing in this way, a virtual image can be ensured more widely in the 2nd virtual display part 4, and uses, such as displaying the background of a virtual image, become possible.

  Moreover, in this embodiment, the height of the 1st half mirror 31 of the 1st virtual display part 3 and the said 1st half mirror 41 of the 2nd virtual display part 4 is equal. By doing in this way, it becomes possible to combine the height of the virtual image that can be observed by the first virtual display unit 3 and the height of the virtual image that can be observed by the second virtual display unit 4, and the virtual images can be easily multiplexed.

  In the present embodiment, the lower width of the first half mirror 31 of the first virtual display unit 3 and the first half mirror 41 of the second virtual display unit 4 is in the short side direction 23 of the display surface 21. Preferably equal to the length. By doing so, the display surface 21 can be utilized to the maximum extent.

  As described above, according to this embodiment, it is possible to provide a head-up display device that can superimpose virtual images, and it is also possible to provide a head-up display device that can observe virtual images from a plurality of directions. . In the display of the virtual image of the present embodiment, the display device displays different images on the lower part of the first virtual display unit 3 and on the lower part of the second virtual display unit 4, respectively. As a result, it is possible to display different virtual images on the first virtual display unit 3 and the second virtual display unit 4, and various displays are possible.

(Embodiment 2)
FIG. 4 is a schematic top view of a head-up display device (hereinafter referred to as “this device”) 1 according to this embodiment, and FIG. 4 is a schematic cross-sectional view of this device viewed from the side (along the short side direction). 5 and FIG. 6 are schematic cross-sectional views when the apparatus is viewed from the side (along the long side direction).

  The head-up display device according to the present embodiment is substantially the same as that of the first embodiment, but the fourth half mirror 34 in the first virtual display unit 3 is not provided, and the second half mirror 32 and the third half mirror 32 are not provided. The difference is that a trapezoidal half mirror is adopted as the half mirror 33.

  According to the present embodiment, a virtual image can be observed from only one side from the long side direction, but since the second half mirror 32 and the third half mirror 33 can be widely secured, the virtual image from the short side direction can be secured. There is an effect that can be displayed larger. Furthermore, since the first virtual display unit 3 has an opening by not providing the fourth half mirror 34, the exhibitor can display the first virtual display unit 3 through the opening 35. Small items can be placed easily. In this way, there is an effect that the display accessory and the virtual image can be superposed on each other to perform a more diverse display. Note that a transparent member such as glass can be disposed in the opening 35 as a lid.

(Embodiment 3)
FIG. 7 is a schematic top view of a head-up display device (hereinafter referred to as “this device”) 1 according to this embodiment, and FIG. 7 is a schematic cross-sectional view of this device viewed from the side (along the short side direction). 8. FIG. 9 shows a schematic cross-sectional view when the apparatus is viewed from the side (along the long side direction).

  The present embodiment is substantially the same as the first embodiment, but differs from the first embodiment in that a third virtual display unit 5 is further provided on the display surface 21 of the display device 2 along the long side direction. . In addition, the 3rd virtual display part 5 in this embodiment is comprised so that the 1st virtual display part 3 may be pinched | interposed with the 2nd virtual display part 4. FIG.

  The third virtual display unit 5 according to the present embodiment is configured to include a first half mirror 51 inclined about 45 degrees in the long side direction 22 with respect to the display surface 21 of the display device 2. The third virtual display unit 5 has substantially the same configuration as the second virtual display unit 4 and is different in arrangement only. In the present embodiment, the first half mirror 31 of the first virtual display unit 3, the first half mirror 41 of the second virtual display unit 4, and the first half mirror 51 of the third virtual display unit 5. Are arranged substantially in parallel. The meanings of “substantially parallel” and “about 45 degrees” are the same as those in the first embodiment.

  Moreover, in this embodiment, the height of the 1st virtual display part 3, the 2nd virtual display part 4, and the 3rd virtual display part 5 is unified. By doing in this way, there exists an advantage that the height of the virtual images 91, 92, and 93 can be match | combined easily.

  As described above, according to the present embodiment, in addition to the effect of the first embodiment, there is an effect that a display in which more virtual images are superimposed is possible.

(Embodiment 4)
FIG. 10 is a schematic top view of a head-up display device (hereinafter referred to as “this device”) 1 according to this embodiment, and FIG. 10 is a schematic cross-sectional view of this device viewed from the side (along the short side direction). 11 and FIG. 12 are schematic cross-sectional views when the apparatus is viewed from the side (along the long side direction).

  The present embodiment is substantially the same as the third embodiment, but the heights of the first half mirror 41 of the second virtual display unit 4 and the first half mirror 51 of the third virtual display unit 5 are the same. However, it is different from the third embodiment in that the height is set lower than the height of the first half mirror 31 in the first virtual display unit 3. By doing in this way, it becomes possible to provide three virtual display parts even in a general display size, and there is an effect that multiple virtual images can be displayed.

  In the present embodiment, the first half mirror 41 of the second virtual display unit 4 and the first half mirror 51 of the third virtual display unit 5 have the same height, but the first to third virtual displays. The height of the part can be adjusted as appropriate, and any of the heights can be different or the same. By this adjustment, virtual display corresponding to display devices of various sizes can be performed.

(Embodiment 5)
FIG. 13 is a schematic top view of a head-up display device (hereinafter referred to as “this device”) 1 according to this embodiment, and FIG. 13 is a schematic cross-sectional view of this device viewed from the side (along the short side direction). 14 and FIG. 15 are schematic cross-sectional views when the apparatus is viewed from the side (along the long side direction).

  The present embodiment is substantially the same as the fourth embodiment, but the orientation of the first half mirror 51 of the third virtual display unit 5 is oppositely arranged with respect to the long side direction 22 of the display surface 21. Is different. By doing so, there is an effect that multiple virtual images can be confirmed from any direction of the long side direction.

  In this embodiment, the height of the first half mirror 41 of the second virtual display unit 4 and the height of the first half mirror 51 of the third virtual display unit 5 are the same. As shown in the third and fourth embodiments, the heights of the first to third virtual display portions can be adjusted as appropriate, and can be set to different heights or the same.

(Embodiment 6)
FIG. 16 is a schematic top view of a head-up display device (hereinafter referred to as “this device”) 1 according to this embodiment, and FIG. 16 is a schematic cross-sectional view of this device viewed from the side (along the short side direction). FIG. 18 is a schematic cross-sectional view of the present apparatus when viewed from the side (along the long side direction).

  The present embodiment is substantially the same as the fourth embodiment, except that the first half mirror 31, the second half mirror 32, the third half mirror 33, and the fourth half mirror 34 of the first virtual display unit 3 are provided. The trapezoidal shape differs in that the upper portion of the first virtual display section 3 has a rectangular window 36. In this way, it is possible to adjust the height while ensuring the size of the lower width and the like of the first virtual display unit 3, and the display surface 21 can be effectively used. The height of the virtual display unit 3 can be combined with the second virtual display unit 4 and the third virtual display unit 5, and the degree of freedom in design is improved and the rectangular window 36 is provided. Display items can be placed from the window. Of course, it is possible to separately provide a plate-like member such as glass as a lid in the rectangular window 36.

  In the present embodiment, the first half mirror 41 of the second virtual display unit 4 and the first half mirror 51 of the third virtual display unit 5 have the same height. As can be done, the heights of the first to third virtual display portions can be adjusted as appropriate, and all of them can be set to different heights or the same.

(Embodiment 7)
FIG. 19 is a schematic top view of a head-up display device (hereinafter referred to as “this device”) 1 according to this embodiment, and FIG. 19 is a schematic cross-sectional view of this device viewed from the side (along the short side direction). 20 and FIG. 21 are schematic cross-sectional views of the present apparatus when viewed from the side (along the long side direction).

  The present embodiment is substantially the same as that of the fifth embodiment, except that the first half mirror 31, the second half mirror 32, the third half mirror 33, and the fourth half mirror 34 of the first virtual display unit 3 are provided. The trapezoidal shape differs in that the upper portion of the first virtual display section 3 has a rectangular window 36. In this way, it is possible to adjust the height while ensuring the size of the lower width and the like of the first virtual display unit 3, and the display surface 21 can be effectively used. The height of the virtual display unit 3 can be combined with the second virtual display unit 4 and the third virtual display unit 5, and the degree of freedom in design is improved and the rectangular window 36 is provided. Display items can be placed from the window. Of course, it is possible to separately provide a plate-like member such as glass as a lid in the rectangular window 36.

  In the present embodiment, the first half mirror 41 of the second virtual display unit 4 and the first half mirror 51 of the third virtual display unit 5 have the same height. As can be done, the heights of the first to third virtual display portions can be adjusted as appropriate, and all of them can be set to different heights or the same.

(Embodiment 8)
FIG. 22 is a schematic top view of a head-up display device (hereinafter referred to as “this device”) 1 according to this embodiment, and FIG. 22 is a schematic cross-sectional view of this device viewed from the side (along the short side direction). 23. FIG. 24 is a schematic cross-sectional view of the present apparatus as viewed from the side (along the long side direction).

  The present embodiment is substantially the same as that of the second embodiment, but the first half mirror 31 of the first virtual display unit 3 has a trapezoidal shape, and the upper part of the first virtual display unit 3 has a rectangular window 36. It is different to have. By doing in this way, while ensuring the bottom width etc. size of the 1st virtual display part 3, height can be adjusted and the display surface 21 can be utilized effectively, while 1st The height of the virtual display unit 3 can be combined with the second virtual display unit 4 and the third virtual display unit 5, and the degree of freedom in design is improved, and the opening 35 and the rectangular window 36 are provided. Thus, it is possible to arrange the display items from the opening and the window. Of course, it is possible to separately provide a plate-like member such as glass as a lid in the rectangular window 36.

(Supplement for Embodiments 1 to 8)
Each of the head-up display devices in Embodiments 1 to 8 is characterized in that a plurality of virtual display units are arranged on the display device, and the lower side of the half mirror is on the display device side. Therefore, in order to stably fix the positional relationship between the plurality of virtual display devices, it is preferable to fix the positional relationship with respect to the display device. However, it may be preferable to fix only a plurality of virtual display units from the viewpoint of carrying around, combination with other display devices, and the like. In such a case, for example, a bar-shaped frame member that commonly connects the lower side portions of the plurality of virtual display units may be combined. An example of this case is shown in FIG. In addition, this figure is an example of the frame member in the said Embodiment 1. FIG. In this way, the display device can be removed, and the display device can be arranged on either side (the lower side and the apex side) of the virtual display unit. .

(Embodiment 9)
FIG. 26 is a schematic top view (when the display device is not displayed) of the head-up display device (hereinafter referred to as “this device”) 1 according to the present embodiment, and FIG. 26 shows the device from the side (along the short side direction). 27) A schematic cross-sectional view when viewed is shown in FIG. 27, and a schematic cross-sectional view when this apparatus is viewed from the side (along the long side direction) is shown in FIG.

  The present embodiment is substantially the same as that of the first embodiment, but the arrangement relationship between the display device 2, the first virtual display unit 3, and the second virtual display unit 4 is different. Specifically, in the first embodiment, the half mirror of the first virtual display unit 3 has a triangular shape and is arranged so that the base side is on the display device side. The point is that the apex portion is arranged on the display device side. In this case, it is preferable to provide a support plate 6 for supporting the first virtual display unit 3 and the second virtual display unit 4 so that these virtual display units are fixedly arranged.

  By doing in this way, since this apparatus 1 can fix the arrangement | positioning relationship of the 1st virtual display part 3 and the 2nd virtual display part 4, there exists an effect that it is not necessary to fix to a display apparatus directly. . Furthermore, by using a cover that can be opened and closed by opening a hole in the support plate 6, for example, as shown in FIG. 28, there is an effect that it is easy to arrange the display items in the first virtual display unit 3. .

  In this embodiment, an example in which the arrangement of the display device is reversed is described as a modification of the first embodiment. However, the present invention is not limited to the first embodiment, and the same applies to the second to eighth embodiments. Needless to say, application is possible. In particular, in the above embodiment, when the heights of the first to third virtual display portions are made uniform, or when an opening is further provided, the first to third shapes are stably formed in a display device shape. The virtual display unit can be arranged to display multiple virtual images that are easier to see.

  The present invention has industrial applicability as a head-up display device.

Claims (7)

A display device having a rectangular display surface;
The display the display surface along the longitudinal direction of the device, have a, a first virtual display unit and a second virtual display portion disposed on said display device,
The first virtual display unit and the second virtual display unit are respectively the table of the display device.
A first half mirror inclined about 45 degrees in the long side direction with respect to the display surface,
The first half mirror of the first virtual display section and the first half of the second virtual display section
The half mirrors are arranged almost in parallel,
The first virtual display unit is inclined about 45 degrees in the short side direction of the display surface with respect to the display surface.
And a second half mirror and a third half mirror arranged so as to be V-shaped respectively.
A head-up display device having a mirror . The first virtual display unit is inclined about 45 degrees in the long side direction of the display surface with respect to the display unit, and is arranged to face the first half mirror in the first virtual display unit. head-up display device according to claim 1, further comprising a fourth half mirror being. It said first virtual and the first half-mirror the display unit, the second virtual display portion of the first head-up display device of the height of the half mirror are equal claim 1. Said first half mirror of the first virtual display unit, the second lower width of the first half mirror virtual display unit according to claim 1, wherein equal to the length of the short side of the display surface Head up display device. The head-up display device according to claim 2, wherein the first virtual display unit has a quadrangular pyramid shape by first to fourth half mirrors. The head-up display device according to claim 1, further comprising a third virtual display unit along a long side direction of the display surface of the display device. Along the long side direction of the display surface of the display device, further has a third virtual display unit,
The third virtual display unit is configured to include a first half mirror inclined about 45 degrees in the long side direction with respect to the display surface of the display device,
The first half mirror of the first virtual display unit, the first half mirror of the second virtual display unit, and the first half mirror of the third virtual display unit are substantially parallel. The head-up display device according to claim 1, which is disposed on the head.