JP2009300572A - On-board information-displaying device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an on-board information-displaying device which reduces an obstruction in view owing to a rear-view mirror or a door mirror. <P>SOLUTION: The on-board information-displaying device includes: display films 16, 17 which are provided in the side windows 23, 25 of a vehicle 20 and appears to be transparent or opaque depending on viewing angles; on-board cameras 11, 12 which are provided so that they may pick up the images of the rear side of the vehicle 20; an image-generating device 13 which generates image data on the rear side of the vehicle 20 on the basis of the imaging data outputted from the on-board cameras 11, 12; and projectors 14, 15 which project the images of the rear side of the vehicle onto the display films 16, 17 on the basis of the image data generated by the image-generating device 13. The composition copes with an obstruction in view owing to, for example, a door mirrors. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an in-vehicle information display device capable of confirming a state around a vehicle with a display image.

  In general, when checking the state behind the vehicle, the driver often uses a room mirror provided at the upper part of the front window of the vehicle. Further, when checking the rear side of the vehicle (right rear side or left rear side), the driver often uses a door mirror provided on the side of the vehicle.

  In recent years, an increasing number of vehicles are equipped with vehicle peripheral image display devices. This vehicle periphery image display device includes an in-vehicle camera installed around a vehicle for imaging the periphery of the vehicle, an image generation device for generating image data from imaging data acquired by each in-vehicle camera, and an image generation device And a display device for displaying an image around the vehicle based on the image data generated in step (5), and the driver looks at the image displayed on the display device, so that the situation around the vehicle is displayed. It is possible to confirm.

A technique for providing information to a driver through a display image is described in Patent Document 1. In the technique of Patent Document 1, an LCD display unit is embedded in a dashboard of an automobile, a reflection type hologram screen is provided on a windshield glass, and various information is projected from the LCD display unit onto the hologram screen. .
JP 9-33856 A

  By the way, a passenger | crew's visual field may be obstruct | occluded by this room mirror or door mirror. In particular, passengers other than the driver who use fewer room mirrors and door mirrors than the driver (for example, passengers in the passenger seat) may feel annoyed by the presence of these objects that obstruct the field of view. In addition, the rear-view mirror may be replaced with a larger rear-view mirror so that the driver can see a larger area, and the door mirror has recently been added with functions other than the mirror, such as the incorporation of a blinker. As a result, the size has increased. Note that even a vehicle equipped with a vehicle peripheral image display device has a problem that the view of the occupant is obstructed because the room mirror and the door mirror are provided.

  The present invention was created in view of the problems in the prior art, and an object thereof is to provide an in-vehicle information display device that can alleviate the obstruction of the field of view caused by a room mirror or a door mirror.

  In order to solve the above-described problems of the prior art, an in-vehicle information display device according to the present invention is provided on a vehicle window, and displays a display film that is transparent or opaque according to a viewing angle, and images the surroundings of the vehicle. An imaging means provided in a possible manner, a vehicle surrounding image data generating means for generating image data around the vehicle based on imaging data output from the imaging means, and generated by the vehicle surrounding image data generating means Image projection means for projecting an image around the vehicle on the display film based on image data.

  In the present invention, a display film that appears transparent or opaque according to the viewing angle is provided on the window of the vehicle, and an image around the vehicle is projected from the image projection means onto the display film. However, when the surface on which the display film is disposed is the front, the display film is disposed so as to include a range of angles that appear opaque with respect to the front direction from the viewpoint of the passenger in the driver's seat of the vehicle.

  For example, in the present invention, when a display film is provided on a side window of a vehicle and an image of the rear side of the vehicle is projected from the image projection means onto the display film, the function is almost the same as that of a general vehicle door mirror. Can fulfill. As a result, the door mirror can be eliminated from the vehicle, and the hindrance to the occupant's field of view can be mitigated.

  In the present invention, when the display film is provided on the front window of the vehicle and an image behind the vehicle is projected from the image projection means onto the display film, the function is almost the same as that of a general vehicle room mirror. Can fulfill. Thereby, it becomes possible to eliminate a room mirror from a vehicle, and the obstruction | occlusion of a passenger | crew's visual field can be eased.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

(First embodiment)
FIG. 1 is a block diagram showing the configuration of an in-vehicle information display system (in-vehicle information display device) according to the first embodiment of the present invention. 2 and 3 are diagrams showing an arrangement example of each device constituting the in-vehicle information display system according to the present embodiment.

  The in-vehicle information display system 10 according to the present embodiment includes two in-vehicle cameras 11 and 12, an image generation device 13, two projectors 14 and 15, and two display films 16 and 17 as shown in FIG. I have.

  In the in-vehicle information display system 10, the in-vehicle cameras 11 and 12 continuously acquire images of the right rear and left rear of the host vehicle, and are installed at appropriate locations outside the host vehicle. FIG. 2 shows an installation example. As shown in the drawing, the right rear camera 11 is placed on the right side of the vehicle 20 (in the example shown, on the front fender near the side window 23 on the right front side). Are respectively installed on the left side of the vehicle 20 (in the illustrated example, on the front fender near the side window 25 on the left front side).

  The image generation device 13 generates image data around the vehicle 20 based on the imaging data output from the in-vehicle cameras 11 and 12, and is installed in the center console of the vehicle 20 as illustrated in FIG. Has been. As shown in FIG. 1, the image generation device 13 includes an image input unit 13a, a captured image memory 13b, a captured data extraction unit 13c, an image processing unit 13d, an image output unit 13e, and a control unit 13f.

  In the image generation device 13, the image input unit 13a converts analog image signals (imaging data) such as NTSC output from the in-vehicle cameras 11 and 12 into digital image signals based on the control from the control unit 13f. It is. Based on the control from the control unit 13f, the captured image memory 13b has predetermined image data (right rear and left rear image data of the vehicle) supplied via the image input unit 13a. It is stored sequentially at the timing.

  The imaging data extraction unit 13c extracts the imaging data partially from the imaging data in each direction stored in the captured image memory 13b based on the control from the control unit 13f. Based on the control from the control unit 13f, the image processing unit 13d appropriately performs image processing on the imaging data in each direction extracted by the imaging data extraction unit 13c to generate image data. The image output unit 13e converts the digital image data output from the image processing unit 13d into analog image data based on the control from the control unit 13f and sends the analog image data to the projectors 14 and 15.

  The control unit 13f is composed of a microcomputer, and a central processing unit (CPU) for controlling various processes related to image display, a ROM storing a program that defines the processes performed by the CPU, and in the course of the processes A RAM or the like for temporarily storing generated data is provided. The control unit 13f cooperates with the other functional blocks 13a to 13e to generate right rear image data of the vehicle 20 based on the imaging data output from the right rear camera 11, and from the left rear camera 12. Control related to generating image data of the left rear of the vehicle 20 is performed based on the output imaging data.

  In the in-vehicle information display system 10, each projector 14, 15 is composed of a projection optical system including, for example, a liquid crystal panel, and displays images around the vehicle 20 based on the image data generated by the image generation device 13. To project. As illustrated in FIG. 2, the driver seat side projector 14 is installed on the ceiling of the vehicle 20 above the driver seat (the front right seat in the illustrated example), and the right rear image of the vehicle 20 is displayed on the driver seat side. The image is projected onto the display film 16. On the other hand, the passenger seat side projector 15 is installed on the ceiling of the vehicle 20 above the passenger seat (the front left seat in the illustrated example) as illustrated in FIG. It projects on the seat side display film 17. The projectors 14 and 15 are adjusted in projection direction, brightness, image quality, and the like so that the projected images are displayed on the display films 16 and 17.

  Each of the display films 16 and 17 functions as a screen of the projectors 14 and 15 that respectively display images projected from the projectors 14 and 15. These display films 16 and 17 have a function of appearing transparent or opaque (in the form of frosted glass) depending on the viewing angle. For example, a view control film (product of Sumitomo Chemical Co., Ltd.) The name “Lumisty” (registered trademark)) is used. More specifically, these display films 16 and 17 have an angle from a degree to b degrees with respect to the front direction (provided that 0 <a <b <90) when the surface on which the display film is disposed is the front side. It has a function that the region in the range of appears opaque and the region in the range of the other angles looks transparent.

  As illustrated in FIGS. 2 and 3, the driver seat side display film 16 of the display films 16 and 17 is installed below the right front side window 23, and the passenger seat side display film 17 is the front left side. It is installed in the lower part of the side window 25 on the side. The display films 16 and 17 are installed on the surfaces of the side windows 23 and 25 on the vehicle interior side of the vehicle 20.

  Hereinafter, the installation location of the display films 16 and 17 will be described in more detail. Since the driver's seat side display film 16 has the functions described above, when the occupant sits in the driver's seat in a normal driving posture and faces the front (the direction in which the side window 23 exists), the driver's seat side display film 16 It is only necessary to be installed in the region of the side window 23 corresponding to the range from a degree to b degree. Thereby, when the driver's seat side projector 14 is not projecting an image, the display film 16 looks opaque to the driver's seat passenger. On the other hand, the passenger seat side display film 17 is also in the right direction from a degree to b degree when the occupant is sitting in the driver's seat in the normal driving posture and facing the front (the direction in which the side window 25 exists). It suffices if it is installed in the region of the side window 25 corresponding to the range. Thereby, when the passenger seat side projector 15 is not projecting an image, the display film 17 appears opaque to the passenger in the driver seat.

  Further, the size of the display films 16 and 17 (the size in the front-rear direction of the side windows 23 and 25) may be any size that can display the images projected from the projectors 14 and 15, respectively. However, the sizes of the display films 16 and 17 may be provided with margins so that they can correspond to various positions of the driver's seat when the driver's seat is slid back and forth according to the driver's occupant. preferable.

  In the in-vehicle information display system 10 configured as described above, when the ignition key of the vehicle 20 is changed from the “off” state to the “accessory” state, the in-vehicle information display system 10 is turned “on”. Then, in the in-vehicle information display system 10, the right rear image of the vehicle 20 acquired by the right rear camera 11 is projected from the driver seat side projector 14 via the image generation device 13, and the driver seat side display film is displayed. 16 is displayed. On the other hand, the left rear image of the vehicle 20 acquired by the left rear camera 12 is projected from the passenger seat side projector 15 via the image generating device 13 and displayed on the passenger seat side display film 17. Note that when the ignition key of the vehicle 20 is in an “off” state and further in a predetermined state (for example, the door key of the vehicle 20 is once in a “released” state and then in a “locked” state). The in-vehicle information display system 10 is turned “off”, and the image display on the display films 16 and 17 ends.

  Thus, in the in-vehicle information display system 10 of the present embodiment, the state of the right rear of the vehicle 20 is displayed as an image on the driver seat side display film 16, and the left rear of the vehicle 20 is displayed on the passenger seat side display film 17. Is displayed as an image. That is, the vehicle-mounted information display system 10 can perform substantially the same function as a general vehicle door mirror. For this reason, it becomes possible to eliminate a door mirror from the vehicle 20, and it is possible to alleviate the obstruction of the sight of the occupant (especially the occupants in the driver seat and the passenger seat). Moreover, the display films 16 and 17 have a higher degree of freedom in installation place than the door mirrors, and by increasing the display films 16 and 17, the direction of the door mirrors required for each driver's occupant (vertical and horizontal directions). There is an advantage that it is possible to omit the adjustment.

  Further, when the viewpoint of the driver's seat occupant moves to the front (front glass 21 side), the display films 16 and 17 appear to be transparent to the driver's seat occupant (provided when the driver's seat occupant looks at the front). When the films 16 and 17 appear in the area of the side windows 23 and 25 corresponding to the range of angles smaller than a degree). At this time, since the door mirror disappears from the vehicle 20, the driver's seat occupant can directly check the front right and left front states of the vehicle 20 hidden behind the door mirror.

  Furthermore, compared with a vehicle provided with a fender mirror, the driver's seat occupant can see the state (image) of the rear side of the vehicle 20 at a position closer to the person's viewpoint, so that the state can be seen more clearly. It can be confirmed.

  In the in-vehicle information display system 10 configured as described above, the in-vehicle cameras 11 and 12 are “imaging means”, the image generation device 13 is “vehicle surrounding image data generation means”, and the projectors 14 and 15 are “image projection”. The display films 16 and 17 correspond to the “display film”.

  In the above-described embodiment, only the right rear camera 11 and the left rear camera 12 are provided, but it is needless to say that the present invention is not limited to this. For example, in addition to a right rear camera and a left rear camera, a right lower camera and a lower left camera that acquire lower right and lower left images of the vehicle are provided. The image on the left side and the image on the lower left side of the vehicle may be switched and displayed on the passenger seat side display film.

(Second Embodiment)
FIG. 4 is a block diagram showing a configuration of an in-vehicle information display system (in-vehicle information display device) according to the second embodiment of the present invention. FIG. 5 and FIG. 6 are diagrams showing an arrangement example of each device constituting the in-vehicle information display system according to the present embodiment.

  As shown in FIG. 4, the in-vehicle information display system 50 according to the present embodiment includes an in-vehicle camera 51, an image generation device 52, two projectors 53 and 54, and a display film 55.

  In the in-vehicle information display system 50, the in-vehicle camera 51 continuously acquires images behind the host vehicle, and as illustrated in FIG. 5, the rear part of the host vehicle 70 (in the illustrated example, the rear surface of the trunk). ).

  The image generation device 52 generates image data around the vehicle 70 based on the imaging data output from the in-vehicle camera 51 or generates image data of various menu screens. Further, as shown in FIG. 4, a navigation device 60 and an audio / visual (AV) device 65 mounted on the vehicle 70 are connected to the image generating device 52 as external information providing devices. Then, the image generation device 52 inputs the image data related to navigation generated by the navigation device 60 and the image data related to AV generated by the AV device 65, and in addition to these image data, The image data and the menu screen image data are appropriately processed and output. As illustrated in FIG. 6, the image generation device 52 is installed in the center console of the vehicle 70, and the navigation device 60 and the AV device 65 are installed under the image generation device 52 in the center console of the vehicle 70. ing.

  As shown in FIG. 4, the image generation device 52 includes an image input unit 52a, a captured image memory 52b, a captured data extraction unit 52c, an image processing unit 52d, a menu image generation unit 52e, an image data switching unit 52f, The image combining unit 52g, the image output unit 52h, the operation unit 52i, the vehicle information detection unit 52j, and the control unit 52k are configured.

  In the image generation device 52, the image input unit 52a converts an analog image signal (imaging data) such as NTSC output from the in-vehicle camera 51 into a digital image signal based on control from the control unit 52k. In the captured image memory 52b, the imaging data of the in-vehicle camera 51 (imaging data behind the vehicle) supplied via the image input unit 52a is sequentially stored at a predetermined timing based on the control from the control unit 52k. It is like that.

  The imaging data extraction unit 52c partially extracts imaging data from the imaging data stored in the captured image memory 52b based on control from the control unit 52k. Based on the control from the control unit 52k, the image processing unit 52d appropriately performs image processing on the imaging data extracted by the imaging data extraction unit 52c to generate image data behind the vehicle 70.

  The menu image generation unit 52e generates image data of various menu screens based on control from the control unit 52k.

  The image data switching unit 52f includes image data behind the vehicle 70 generated by the image processing unit 52d, image data related to navigation generated by the navigation device 60, and image data related to AV generated by the AV device 65. (Both are digital image data), and based on control from the control unit 52k, any or all of these image data is output to at least the image composition unit 52g or the image output unit 52h.

  The image composition unit 52g synthesizes a plurality of image data output from the image data switching unit 52f based on the control from the control unit 52k to generate a plurality of screen image data.

  The image output unit 52h converts the digital image data output from the image data switching unit 52f and the digital image data output from the image composition unit 52g into analog image data based on the control from the control unit 52k. Are sent to the projectors 53 and 54.

  The operation unit 52i is for inputting information instructed or set (selected) by the user, and has, for example, a form of a remote control transmitter (remote control) connected to the control unit 52k by infrared communication or the like. . Such a remote control is provided with various operation keys, buttons, joysticks and the like for displaying various menu screens on the display screen of the display film 55, selecting various items in the menu screen, and executing the selected items. ing. In addition to the remote controller, the operation unit 52i may be an “operation panel” that is fixedly provided on the surface of the image generation device 52 on the vehicle interior side.

  The vehicle information detection unit 52j detects information (hereinafter referred to as a “vehicle traveling state instruction signal”) that indicates the traveling state of the host vehicle from the output of various sensors (not shown) equipped on the vehicle 70. It is a block. Examples of the vehicle running state instruction signal include a shift position signal output from a shift position detection sensor, a signal indicating a parking brake state detected by a parking brake sensor, a vehicle speed signal output from a speed sensor, and an engine start. / Stop signal etc. are included.

  The control unit 52k is configured by a microcomputer, similarly to the control unit 13f of the image generation device 13 of the first embodiment. The controller 52k performs various controls in cooperation with the other functional blocks 52a to 52j. For example, the control unit 52k generates image data behind the vehicle 70 based on the imaging data output from the in-vehicle camera 51, or generates image data of the menu screen based on an operation instruction from the operation unit 52i. Control related to this. Further, the control unit 52k selects image data of an image constituting a plurality of screens or selects image data of an image to be displayed on the display film 55 based on an operation instruction of the operation unit 52i. Take control.

  In the in-vehicle information display system 50, each of the projectors 53 and 54 includes a projection optical system including a liquid crystal panel, for example, and projects an image based on the image data output from the image generation device 52 onto the display film 55. As illustrated in FIG. 5, the driver seat projector 53 is installed on the ceiling of the vehicle 70 above the driver seat (the front right seat in the illustrated example), and the passenger seat side projector 54 is installed on the passenger seat (not shown). In the example, it is installed on the ceiling of the vehicle 70 above the left front seat). The projectors 53 and 54 are adjusted in projection direction, brightness, image quality, and the like so that the projected image is displayed on the display film 55.

  The display film 55 functions as a screen common to the projectors 53 and 54 that simultaneously displays images projected from the projectors 53 and 54. Like the display films 16 and 17 of the first embodiment, the display film 55 has an angle from a degree to b degrees with respect to the front direction (provided that the surface on which the display film is disposed is provided). The region of 0 <a <b <90) looks opaque and the region of angles other than that looks transparent, for example, visibility control manufactured by Sumitomo Chemical Co., Ltd. A film (product name “Lumisty” (registered trademark)) is used.

  The display film 55 is the surface of the front window 71 on the vehicle interior side of the vehicle 70, and is installed on the upper portion of the front window 71 as illustrated in FIGS. Hereinafter, the installation location of the display film 55 will be described in more detail with reference to FIG.

  FIG. 7A is a diagram illustrating an example of a state (appearance) of the display film 55 when the driver's seat occupant looks at the display film 55 when the driver's seat projector 53 does not project an image. FIG. 7B is a diagram showing an example of the state of the display film 55 when the passenger in the passenger seat looks at the display film 55 when the passenger seat projector 54 is not projecting an image. 7A and 7B, how the display film 55 is seen by the occupant when the occupant in the driver's seat and the front passenger seat is sitting and facing the front (the direction in which the front window 71 exists). Show.

  As shown in FIG. 7A, the display film 55 has three regions, a first region 55a, a second region 55b, and a third region 55c. Among these regions 55a to 55c, the first region 55a is a region corresponding to an angle smaller than a degree in the left direction when the driver's seat occupant faces the front, and the second region 55b. Is an area corresponding to a range from a degree to b degree, and the third area 55c is an area corresponding to an angle range larger than b degree. Due to the function of the display film 55 described above, the first and third regions 55a and 55c appear to be transparent to the driver's seat occupant (in FIG. 7, the state of being transparent is expressed as “plain”). The second region 55b appears to be opaque (in FIG. 7, the state that appears opaque is expressed by a “satin texture”).

  Further, as shown in FIG. 7B, the display film 55 also includes three regions, a fourth region 55d, a fifth region 55e, and a sixth region 55f. Among these regions 55d to 55f, the fourth region 55d is a region corresponding to an angle smaller than a degree in the right direction when the passenger in the passenger seat faces the front, and the fifth region 55e. Is an area corresponding to a range from a degree to b degrees, and the sixth area 55f is an area corresponding to an angle range larger than b degree. For the passenger in the passenger seat, the fourth and sixth regions 55d and 55f appear to be transparent (in FIG. 7, the state of being transparent is expressed as “plain”), and the fifth region 55e appears to be opaque ( In FIG. 7, the state of appearing opaque is expressed by “satin pattern”).

  According to the appearance of the display film 55 shown in FIGS. 7A and 7B, in order for the display film 55 to function as a screen common to the projectors 53 and 54 as described above, It suffices that at least the second region 55b exists for the occupant, and it is sufficient that at least the fifth region 55e exists for the passenger in the passenger seat. That is, the display film 55 should just be installed so that the 2nd area | region 55b and the 5th area | region 55e may be included.

  In addition, the size of the display film 55 (the size of the front window 71 in the left-right direction) may be any size as long as images projected from the projectors 53 and 54 can be displayed simultaneously. However, the size of the display film 55 is a margin so that it can correspond to various positions of the driver's seat when the driver's seat is slid back and forth according to the occupant of the driver's seat, and various positions of the passenger seat. Is preferably provided.

  Hereinafter, processing related to image display on the display film 55 performed in the in-vehicle information display system 50 according to the present embodiment will be described with reference to image display examples illustrated in FIGS. 8 and 9.

  In the in-vehicle information display system 50 of the present embodiment, when the ignition key of the vehicle 70 is changed from “off” to “accessory”, the in-vehicle information display system 50 is turned “on”.

  When the in-vehicle information display system 50 is in the “on” state and the occupant performs a predetermined operation on the operation unit 52i, an image to be displayed on the display film 55 in the menu image generation unit 52e based on the control from the control unit 52k. Is generated by the user (occupant), and the image data switching unit 52f and the image output unit 52h output the image data to the projectors 53 and 54 based on the control from the control unit 52k. To do. As a result, the menu screen (not shown) is displayed on the display film 55 so that the menu screen can be seen by both the driver's seat and the passenger seat. In the menu screen, as an image for the driver's seat occupant, only an image behind the vehicle 70 or an image combining the image behind the vehicle 70 and an image related to navigation or an image related to AV is selected. Is possible. In addition, as an image for the passenger in the passenger seat, an image behind the vehicle 70, an image related to navigation, an image related to AV, or an image obtained by combining any of these images can be selected. .

  If the control unit 52k determines that the vehicle 70 is traveling based on the vehicle traveling state instruction signal output from the vehicle information detection unit 52j, the image data on the menu screen described above is used for the passenger seat. You may make it output only to the projector 54. FIG.

  When an image to be displayed is designated by the operation instruction of the operation unit 52i on the menu screen described above, the image data switching unit 52f, the image composition unit 52g, and the image output unit 52h are designated based on the control from the control unit 52k. The image data of the image is sent to the projectors 53 and 54.

  For example, when an image behind the vehicle 70 is designated as an image for the driver's occupant and an AV image is designated as the passenger's occupant image, the image data is based on the control from the control unit 52k. In the switching unit 52f, the image data of the image behind the vehicle 70 and the image data of the image related to AV are selected from the input image data and output to the image output unit 52h. Then, based on the control from the control unit 52k, the image output unit 52h sends the image data of the image behind the vehicle 70 to the driver seat projector 53 and the image data of the AV image to the passenger seat projector 54. Send it out.

  Accordingly, an image behind the vehicle 70 projected from the driver seat projector 53 is displayed on the display film 55, and an AV image projected from the passenger seat projector 54 is displayed on the display film 55. As shown in FIG. 8A, the driver's occupant sees an image behind the vehicle 70 in the second region 55b of the display film 55, and the passenger's occupant sees FIG. 8B. In this way, an image related to AV can be seen in the fifth area 55e of the display film 55.

  Further, when an image behind the vehicle 70 and an image related to navigation are specified as an image for a passenger in the driver's seat, and an image related to AV is specified as an image for an occupant in the passenger seat, the control unit 52k Based on the control, the image data switching unit 52f outputs the image data of the rear image of the vehicle 70 and the image data of the navigation related image among the input image data to the image combining unit 52g, and also outputs the image related to AV. The image data is output to the image output unit 52h. Next, based on control from the control unit 52k, the image data combining unit 52g generates image data of an image obtained by combining the input image behind the vehicle 70 and the image related to navigation, and outputs the generated image data to the image output unit 52h. To do. Then, based on the control from the control unit 52k, the image output unit 52h sends the image data of the image combined by the image data synthesis unit 52g to the driver seat projector 53, and the image data of the AV is used for the passenger seat. Send to projector 54.

  As a result, an image obtained by combining the rear image of the vehicle 70 projected from the driver seat projector 53 and the navigation image is displayed on the display film 55, and the AV projected from the passenger seat projector 54 is displayed. The image is displayed on the display film 55, and an occupant at the driver's seat receives an image behind the vehicle 70 and an image related to navigation in the second area 55b of the display film 55 as shown in FIG. The combined image can be seen, and the passenger in the passenger seat can see the AV image in the fifth area 55e of the display film 55 as shown in FIG. 9B.

  Note that the navigation image described above includes navigation information based on the route searched by the navigation device 60 and information on external devices connected to the navigation device 60 (for example, when the external device is a mobile phone). Includes incoming call content). In addition, AV-related images include video playback images, TV broadcast images, music playback information, radio program information, and various menu images from the AV device 65 main body and an external device (for example, a portable music player) connected to the AV device 65. Is included.

  Thereafter, when the ignition key of the vehicle 70 is in the “off” state and further in a predetermined state (for example, the key of the door of the vehicle 70 is once in the “released” state and then in the “locked” state). The in-vehicle information display system 70 is turned “off”, and the image display on the display film 55 ends.

  Thus, in the in-vehicle information display system 50 of the present embodiment, the state behind the vehicle 70 is displayed as an image on the display film 55, and a predetermined area (second area of the display film 55 is displayed to the driver's seat occupant. The image is visible only in region 55b). Moreover, the area | region (1st and 3rd area | region 55a, 55c) other than that of the display film 55 looks transparent to the passenger | crew of a driver's seat. That is, the in-vehicle information display system 50 can perform almost the same function as a general vehicle room mirror. For this reason, it becomes possible to eliminate a room mirror from the vehicle 70, and the obstruction | occlusion of a passenger | crew's visual field can be eased. In addition, the display film 55 has a higher degree of freedom in the installation location compared to the rearview mirror, and by increasing the display film 55, it becomes possible to eliminate the adjustment of the rearview mirror direction required for each driver seat occupant, Furthermore, there is an advantage that even if there is an occupant in the center of the rear seat, the state behind the vehicle 70 can be confirmed without being blocked.

  In the in-vehicle information display system 50 according to the present embodiment, for example, an image (for example, an image related to AV) designated by the occupant is displayed on the display film 55, and a predetermined area of the display film 55 is displayed to the passenger in the passenger seat. The image can be seen in (fifth region 55e). Further, the other areas (the fourth and sixth areas 55d and 55f) of the display film 55 appear transparent to the passenger in the passenger seat. On the other hand, the image cannot be seen by passengers in the driver's seat. That is, in this in-vehicle information display system 50, the passenger in the passenger seat can view a desired image without obstructing the view of the driver in the driver seat.

  In the in-vehicle information display system 50 configured as described above, the in-vehicle camera 51 is the “imaging unit”, the image generation device 52 is the “vehicle surrounding image data generation unit”, and the driver seat projector 53 is the “image projection unit”. The display film 55 corresponds to the “display film”, and the navigation device 60 and the AV device 65 correspond to the “external information providing device”.

  In the embodiment described above, the size of the display film 55 is substantially the same as the size of the windshield 71 in the left-right direction. For example, when there is no need to show an image to the passenger in the passenger seat, There is no need to make it bigger. In this case, the display film may be obtained by cutting a part on the driver's seat side of the display film 55, such as a display film 55a shown in FIG.

  Moreover, you may combine the structure of the vehicle-mounted information display system 10 of 1st Embodiment mentioned above with the vehicle-mounted information display system 50 of 2nd Embodiment. In the vehicle-mounted information display system having such a configuration, it becomes possible to eliminate the room mirror and the door mirror from the vehicle, and the hindrance to the occupant's field of view can be further alleviated.

It is a block diagram which shows the structure of the vehicle-mounted information display system (vehicle-mounted information display apparatus) which concerns on the 1st Embodiment of this invention. It is FIG. (1) which shows the example of arrangement | positioning of each apparatus which comprises the vehicle-mounted information display system which concerns on 1st Embodiment. It is FIG. (2) which shows the example of arrangement | positioning of each apparatus which comprises the vehicle-mounted information display system which concerns on 1st Embodiment. It is a block diagram which shows the structure of the vehicle-mounted information display system (vehicle-mounted information display apparatus) which concerns on the 2nd Embodiment of this invention. It is FIG. (1) which shows the example of arrangement | positioning of each apparatus which comprises the vehicle-mounted information display system which concerns on 2nd Embodiment. It is FIG. (2) which shows the example of arrangement | positioning of each apparatus which comprises the vehicle-mounted information display system which concerns on 2nd Embodiment. FIG. 7A is a diagram showing an example of the state of the display film when the driver's seat occupant looks at the display film when the driver's seat projector is not projecting an image, and FIG. 7B is an assistant. It is a figure which shows an example of the state of a display film when the passenger | crew of a front passenger seat looks at a display film when the projector for seats is not projecting an image. FIG. 8A is a diagram (No. 1) showing an example of the state of the display film when the driver's seat occupant looks at the display film when the driver's seat projector projects an image, and FIG. These are figures (the 1) which shows an example of the state of a display film when the passenger | crew of a passenger seat looks at a display film when the image for a passenger seat projects an image. FIG. 9A is a diagram (No. 2) showing an example of the state of the display film when the driver's seat occupant looks at the display film when the driver's seat projector projects an image. These are figures (the 2) which show an example of the state of a display film when the passenger | crew of a passenger seat sees a display film when the image for a passenger seat projects an image. It is a figure which shows the example of arrangement | positioning of each apparatus which comprises the vehicle-mounted information display system which concerns on the modification of 2nd Embodiment.

Explanation of symbols

10, 50 ... In-vehicle information display system (in-vehicle information display device),
11, 12, 51 ... In-vehicle camera (imaging means),
13, 52 ... Image generating device (vehicle surrounding image data generating means),
14, 15, 53, 54 ... projector (image projection means),
16, 17, 55 ... display film (display film),
20, 70 ... vehicle,
21, 71 ... Front window,
23, 25, 73, 75 ... front side window,
52f... Image data switching unit (image data switching means)
52g... Image composition unit (image data composition means)
52h ... Image output unit (image data switching means),
60 ... Navigation device (information providing device),
65. AV apparatus (information providing apparatus).

Claims (9)

A display film that is provided in a vehicle window and that appears transparent or opaque depending on the viewing angle;
Imaging means provided so as to be capable of imaging the periphery of the vehicle;
Vehicle surrounding image data generating means for generating image data around the vehicle based on imaging data output from the imaging means;
An in-vehicle information display device comprising: an image projecting unit that projects an image around the vehicle on the display film based on the image data generated by the vehicle surrounding image data generating unit. The display film is provided on a side window of the vehicle,
The imaging means is provided so that the rear side of the vehicle can be imaged,
The in-vehicle information display device according to claim 1, wherein the vehicle surrounding image data generation unit generates image data of a rear side of the vehicle based on imaging data output from the imaging unit. The display film is provided on a side window on the driver's seat side and the passenger seat side of the vehicle,
The imaging means is provided so as to be able to image the driver side and the passenger side rear side of the vehicle,
The vehicle surrounding image data generating unit generates image data on the rear side of the driver side of the vehicle and image data on the rear side of the passenger side of the vehicle based on the imaging data output from the imaging unit. And
The image projecting unit is configured to display an image of a rear side on the driver's seat side of the vehicle on the display film provided on a side window on the driver's seat side based on the image data generated by the vehicle surrounding image data generating unit. The vehicle-mounted information according to claim 2, wherein a rear side image of the vehicle is projected onto the display film provided in a side window on the passenger seat side. Display device.   When the surface on which the display film is disposed is a front surface, the display film is disposed so as to include a range of angles that appear to be opaque with respect to the front direction from the viewpoint of an occupant of the driver's seat of the vehicle. The in-vehicle information display device according to claim 2 or 3. The display film is provided on a front window of the vehicle,
The imaging means is provided so as to be capable of imaging the rear of the vehicle,
The in-vehicle information display device according to claim 1, wherein the vehicle surrounding image data generation unit generates image data behind the vehicle based on imaging data output from the imaging unit.   When the surface on which the display film is disposed is a front surface, the display film is disposed so as to include a range of angles that appear to be opaque with respect to the front direction from the viewpoint of an occupant of the driver's seat of the vehicle. The in-vehicle information display device according to claim 5.   When the surface on which the display film is disposed is the front, the display film has a first angle range that appears opaque from the viewpoint of the occupant of the driver's seat of the vehicle and the front seat of the vehicle. The vehicle-mounted information display device according to claim 5, wherein the vehicle-mounted information display device includes a second angle range that is opaque to the front direction from the viewpoint of the passenger.   The image projecting means projects an image behind the vehicle on the display film in the range of the first angle based on the image data generated by the vehicle surrounding image data generating means, and externally The vehicle-mounted information recording apparatus according to claim 7, wherein an information image of the information providing device is projected onto the display film in the region of the second angle range based on information image data generated by the information providing device. Information display device. Image data combining means for generating image data obtained by combining the image data generated by the vehicle surrounding image data generating means and the image data generated by the information providing device;
Image data generated by the vehicle surrounding image data generation means, or image data switching means for outputting the image data generated by the image data synthesis means to the image projection means,
The said image projection means projects an image on the said display film in the area | region of the range of the said 1st angle based on the image data output from the said image data switching means. In-vehicle information display device.

Images