JP2007085918A - In-vehicle display device and display control program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display device and a display control program that prevent taking wrong turns, by automatically switching image displayed on the side of front passenger seat to navigation image. <P>SOLUTION: On the basis of control signals, a branch circuit outputs the image output from a navigation section to an image adjusting circuit by stopping outputting, for example, of image signals for television sent from a television receiving section. The image for navigation with the image adjustment completed is outputted from the image adjusting circuit, to output to a displaying section via a image output section to the image adjusting circuit. At the displaying section, imageries displayed at the side of front passenger seat are switched, for example, from a television picture to a navigation image. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an in-vehicle display device and a display control program. Specifically, the present invention relates to an in-vehicle display device that can display different information on a plurality of users substantially simultaneously on a single screen.

  2. Description of the Related Art Conventionally, a display device that can display two screens substantially simultaneously on a single liquid crystal display (LCD), for example, can display different screens from the driver seat side and the passenger seat side has been disclosed (for example, the following) Patent Documents 1 and 2).

In addition, such a display device is also disclosed in which a controller that operates video and audio displayed on the passenger seat side is disposed at a position where the driver can operate (for example, Patent Document 3 below).
JP-A-6-186526 JP 2000-137443 A JP 2003-137005 A

  However, in such a display device, for example, when a navigation video is displayed on the driver's seat side, the passenger on the passenger seat side can see a video different from the driver, so only the driver can view the navigation video and audio. May cause the vehicle to travel. Therefore, since only the driver views the navigation video or the like, the driver sometimes makes a mistake.

  In order to prevent such a situation, it is desirable to allow the passenger on the passenger side to view the video for car navigation and the like. Conventionally, however, as shown in Patent Document 3, for example, display and sound are manually performed by a controller. There was no choice but to switch.

  On the other hand, if the video displayed on the passenger seat side is automatically switched to the navigation video depending on the situation of the vehicle and the surroundings of the vehicle, the passenger on the passenger seat side can also check the navigation video. Therefore, there is no mistake in the way.

  For this reason, it has been desired to propose a display device that can automatically switch to a navigation image for the passenger on the passenger side.

  Therefore, the present invention has been made in view of the above problems, and its purpose is to automatically switch the image displayed on the passenger seat side to the image for navigation according to the situation of the vehicle and the surroundings of the vehicle, and drive It is to provide an in-vehicle display device and a display control program that prevent a person from making a mistake on the road.

  In order to achieve the above object, the present invention displays a plurality of videos in one screen, and in a vehicle-mounted display device capable of viewing different videos at different viewpoint positions, at least a video that can be viewed on the passenger seat side is used for navigation. Control means for automatically switching the video according to the situation around the vehicle.

  In the in-vehicle display device according to the present invention, the control means performs the switching when approaching a predetermined type of guide point.

  Furthermore, the present invention is characterized in that in the in-vehicle display device, the control means performs the switching when a direction instruction indicating a right turn or a left turn is indicated in the navigation video.

  Furthermore, the present invention is characterized in that, in the in-vehicle display device, the control means performs the switching when a direction instruction indicating a right turn or a left turn is guided by voice.

  Furthermore, the present invention is the vehicle-mounted display device, wherein the control means performs the switching before the vehicle passes an intersection.

  Furthermore, the present invention is characterized in that in the in-vehicle display device, the control means performs the switching when the vehicle approaches an entrance / exit of an expressway.

  Furthermore, the present invention is characterized in that in the in-vehicle display device, the control means performs the switching when the vehicle approaches a service area.

  Furthermore, the present invention is characterized in that in the in-vehicle display device, the control means performs the switching when the vehicle approaches a preset destination.

  Furthermore, the present invention provides the in-vehicle display device, wherein the control means performs prohibition setting so that at least a video that can be viewed on the passenger seat side is not switched to the navigation video when the situation is different from the situation around the vehicle. It is characterized by obtaining.

  Furthermore, the present invention is characterized in that in the in-vehicle display device, the control means can perform a prohibition setting not to perform the switching when an image visible on the driver's seat side is not a navigation image.

  Further, the present invention provides the in-vehicle display device, wherein the control means performs a prohibition setting not to perform the switching when the video that can be visually recognized on the driver's seat side is a navigation video and the route guidance is not performed. It can be performed.

  Further, the present invention provides the in-vehicle display device, wherein the control unit compares the position information indicating the current position of the vehicle with the information indicating the situation around the vehicle, and the vehicle is determined from the position information. The switching is performed when a specific situation around the vehicle is reached based on information indicating the situation around the vehicle.

  In order to achieve the above object, the present invention provides a display in an in-vehicle display device that displays a plurality of videos in one screen and displays the videos substantially simultaneously so that different videos can be viewed at different viewpoint positions. In the control program, the computer is caused to execute a process of automatically switching at least an image displayed on the passenger seat side to an image for navigation according to a situation around the vehicle.

  ADVANTAGE OF THE INVENTION According to this invention, the vehicle-mounted display apparatus and display control program which a driver | operator prevents so that a road is mistaken can be provided.

  The best mode for carrying out the present invention will be described below with reference to the drawings. However, the technical scope of the present invention is not limited to these embodiments, but extends to the invention described in the claims and equivalents thereof.

[Overall configuration of display device and description of each configuration]
First, the overall configuration and the like of an in-vehicle display device (hereinafter, “display device”) according to the present invention will be described. FIG. 1 is a conceptual diagram of a display device according to the present invention.

  The conceptual diagram of FIG. 1 shows the first display image according to the relative position of the observers (users) 10 and 11 with respect to the display unit 7, in other words, according to the viewing angle with respect to the display unit 7. 8, the observer 11 can view the second display image 9 substantially simultaneously, and the display images 8 and 9 can be viewed over the entire display surface of the display unit 7 conceptually. Show. In FIG. 1, a first image source 1 is, for example, a movie image of a DVD player, a received image of a television receiver, or the like, and a second image source 2 is, for example, a map or route guidance image of a car navigation device. The first image data 3 and the second image data 4 are supplied to the display control unit 5 and processed so that they can be displayed on the display unit 7 substantially simultaneously.

The display unit 7 to which the display data 6 is supplied from the display control unit 5 includes a liquid crystal panel provided with a parallax barrier described later. Half of the total number of pixels in the horizontal direction of the display unit 7 is displayed on the first display image 8 based on the first image source 1, and the other half of the pixels is the second display image 9 based on the second image source 2. Used for display. The observer 10 located on the left side with respect to the display unit 7 can see only the pixels corresponding to the first display image 8, and the second display image 9 is blocked by the parallax barrier formed on the surface of the display unit 7. Is virtually invisible. On the other hand, the observer 11 located on the right side of the display unit 7 can see only the pixels corresponding to the second display image 9, and the first display image 8 is blocked by the parallax barrier and is not substantially visible. In addition, about the parallax barrier, the structure disclosed by the following patent documents 4 and patent documents 5 is applicable, for example.
JP-A-10-123461 JP-A-11-84131

With such a configuration, different information and content can be provided to the left and right users on a single screen. Of course, if the first and second image sources 1 and 2 are the same, the left and right users can view the same image as before.

  FIG. 2 is a perspective view showing an example of mounting the multi-view display device according to the present invention on a vehicle. In the figure, a driver's seat 13 is disposed on the right side, and a passenger seat 12 is disposed on the left side. A windshield 14 is provided in front of the driver seat 13 and the passenger seat 12.

  The display unit 7 of the multi-view display device of FIG. 1 is arranged in the dashboard portion at the substantially center between the driver's seat 13 and the passenger seat 12 as shown in FIG. Various operations on the multi-view display device are performed by operating a touch panel (not shown) integrally formed on the surface of the display unit 7, the operation unit 15, or an infrared or wireless remote controller (not shown). A speaker 16 is disposed at each door of the vehicle, and sounds, warnings, and the like linked to the display image are output.

  The observer 11 shown in FIG. 1 sits in the driver seat 13 and the observer 10 sits in the passenger seat 12. The image that can be viewed from the first viewing direction (driver's seat side) with respect to the display unit 7 is, for example, an image such as a map of a car navigation device, and can be viewed from the second viewing direction (passenger seat side) substantially simultaneously. The image is, for example, a television reception image or a DVD movie image. Therefore, the passenger in the passenger seat 12 can enjoy television and DVD at the same time that the driver in the driver seat 13 receives driving assistance by car navigation. In addition, since each image is displayed using, for example, the entire 7-inch screen, the screen size is not reduced as in the conventional multi-window display. In other words, optimal information and contents are provided to the driver and passengers as if there were independent dedicated displays.

  FIG. 3 is a schematic view of a cross-sectional structure of the display unit 7. As shown in FIG. 3, the display unit 7 includes a backlight 101 and a liquid crystal panel 100. The liquid crystal panel 100 includes a polarizing plate 102 disposed on the backlight 101 side, a polarizing plate 103 disposed on the front surface on the light emitting direction side of the liquid crystal panel 100, a TFT (Thin Film Transistor) substrate 104, a liquid crystal layer 105, And a color filter substrate 106, a glass substrate 107, and a parallax barrier 108. The liquid crystal panel 100 includes a pair of substrates having a liquid crystal layer 105 sandwiched between a TFT substrate 104 and a color filter substrate 106 disposed to face the TFT substrate 104, a parallax barrier 108 disposed in front of the light emitting direction, and a glass substrate. 107 is sandwiched between two polarizing plates 102 and 103, and is arranged slightly isolated from the backlight 101. In addition, the liquid crystal panel 100 includes pixels composed of RGB colors (three primary colors).

  Each pixel of the liquid crystal panel 100 is displayed and controlled separately for left side (passenger seat side) display and right side (driver seat side) display. The display pixel on the left side (passenger seat side) is blocked from being displayed on the right side (driver seat side) by the parallax barrier 108 and is visible from the left side (passenger seat side). Further, the display pixel on the right side (driver's seat side) is blocked from being displayed on the left side (passenger seat side) by the parallax barrier 108 and is visible from the right side (driver's seat side). This makes it possible to provide different displays for the driver and passengers. In other words, navigation map information can be given to the driver, and at the same time, a DVD movie or the like can be shown to the passenger. Note that if the configuration of each pixel of the parallax barrier 108 and the liquid crystal panel 100 is changed, a configuration in which different images are displayed in a plurality of directions such as three directions is also possible. In addition, the parallax barrier 108 itself may be configured with a liquid crystal shutter or the like that can be electrically driven to change the viewing angle.

  FIG. 4 is a schematic view of the structure of the display panel viewed from the front, and FIG. 3 is a cross-sectional view taken along the line A-A ′ in FIG. 4. In the figure, a pixel 109 is a pixel for left side (passenger seat side) display, and a pixel 110 is a pixel for right side (driver seat side) display. 3 and 4 show a part of the liquid crystal panel 100 in which, for example, 800 pixels are arranged in the horizontal direction and 480 pixels are arranged in the vertical direction. The left (passenger side) display pixel 109 and the right (driver's side) display pixel 110 are grouped in the vertical direction and are arranged alternately. The parallax barriers 108 are arranged at intervals in the horizontal direction and are uniform in the vertical direction. Thereby, when the display panel is viewed from the left side, the parallax barrier 108 covers the right side pixel 110 and the left side pixel 109 is visible. Similarly, when viewed from the right side, the parallax barrier 108 covers the left pixel 109 and the right pixel 110 can be seen. Further, in the vicinity of the front, since both the left pixel 109 and the right pixel 110 are visible, the left display image and the right display image appear to substantially overlap. Here, the left side pixels 109 and the right side pixels 110 alternately arranged in FIG. 4 have RGB colors as shown in FIG. 3, but in each group in the vertical direction, R columns, G columns, B It may be configured as a single color like a column, or may be configured as a column in which a plurality of RGB are mixed.

  FIG. 5 is a circuit diagram showing a schematic diagram of the TFT substrate 104. The TFT substrate 104 includes a display panel driving unit 111, a scanning line driving circuit 112, a data line driving circuit 113, a TFT element 114, data lines 115 to 118, scanning lines 119 to 121, and a pixel electrode 122.

  As shown in FIG. 5, a plurality of subpixels 123 are formed with a region surrounded by the data lines 115 to 118 and the scanning lines 119 to 121 as a unit. In each subpixel, a pixel electrode 122 for applying a voltage to the liquid crystal layer 105 and a TFT element 114 for controlling the switching are formed. The display panel driver 111 controls the drive timing of the scanning line driver circuit 112 and the data line driver circuit 113. The scanning line driving circuit 112 performs a selection operation of the TFT element 114, and the data line driving circuit 113 controls the voltage applied to the pixel electrode 122.

  The plurality of sub-pixels may include first pixel data (for example, data lines 115 and 117) based on synthesized data of first image data and second image data, or first and second individual image data. By transmitting the second pixel data (for right image display) to the data lines 116 and 118, the first image data group for displaying the first image and the second image are displayed. A second image data group to be displayed is formed.

  FIG. 6 is a block diagram showing an outline of a display device according to the present invention, which is an application example to a so-called Audio Visual Navigation multifunction peripheral. The display device includes a touch panel 124, a control unit 200, a CD / MD playback unit 201, a radio reception unit 202, a TV reception unit 203, a DVD playback unit 204, an HD (Hard Disk) playback unit 205, a navigation unit 206, a distribution circuit 207, A first image adjustment circuit 208, a second image adjustment circuit 209, an audio adjustment circuit 210, an image output unit 211, a VICS (Vehicle Information and Communication System) information reception unit 212, a GPS (Global Positioning System) information reception unit 213, Selector 214, operation unit 215, remote control transmission / reception unit 216, remote control 217, memory 218, external audio / video input unit 219, camera 220, brightness detection unit 221, occupant detection unit 222, rear display unit 223, ETC (Electronic Toll Collection) ) The vehicle-mounted device 224 and the communication unit 225 are provided.

  The display unit 7 includes a touch panel 124, a liquid crystal panel 100, and a backlight 101. As described above, the liquid crystal panel 100 of the display unit 7 substantially simultaneously displays an image viewed from the driver's seat side as the first viewing direction and an image viewed from the passenger seat side as the second viewing direction. It is possible to display. The display unit 7 may be a flat panel display other than the liquid crystal panel 100, such as an organic EL (Electro-Luminescence) display panel, a plasma display panel, a cold cathode flat panel display, or the like.

  Images and audio from various sources (CD / MD playback unit 201, radio reception unit 202, TV reception unit 203, DVD playback unit 204, HD playback unit 205, and navigation unit 206) are based on instructions from the control unit 200. If the image source specified for left is distributed to the first image adjustment circuit 208 and the distribution source 207 for distributing the source specified for right to the second image adjustment circuit 209 is the first image if it is an image. If it is a sound, it is distributed to the adjustment circuit 208 and the second image adjustment circuit 209, respectively, to the sound adjustment circuit 210. Then, the first and second image adjustment circuits 208 and 209 adjust the brightness, color tone, and contrast, and cause the image output unit 211 to display the adjusted images on the display unit 7. In addition, the sound adjustment circuit 210 adjusts the distribution, volume, and sound to each speaker, and the adjusted sound is output from the speaker 16.

  FIG. 7 is a block diagram illustrating an outline of the image output unit 211. For example, as shown in FIG. 7, the image output unit 211 includes a first writing circuit 226, a second writing circuit 227, a VRAM (Video RAM) 228, and a display panel driving unit 111. For example, the first writing circuit 226 includes image data corresponding to an odd-numbered column of images output from the first image adjustment circuit 208 among the adjusted image data (that is, the first display image 8 in FIG. 1). 2), the second writing circuit 227 outputs image data corresponding to the even-numbered columns output from the second image adjustment circuit 209 (that is, image data for the second display image 9 in FIG. 1). Is written in the corresponding area in the VRAM 228 respectively. The display panel driving unit 111 is a circuit that drives the liquid crystal panel 100, and the liquid crystal display panel 100 is based on the image data (the combined data of the first image data and the second image data) held in the VRAM 228. Drive the corresponding pixel. Note that since the image data is written in the VRAM 228 so as to correspond to the multi-view display image obtained by combining the first image data and the second image data, one drive circuit may be used. The operation is also the same as that of a driving circuit of a normal liquid crystal display device. Further, as another configuration, the first display panel drive that drives the corresponding pixel of the liquid crystal display panel 100 based on each image data without combining the first image data and the second image data. It is also conceivable to use a circuit and a second display panel driving circuit.

  Here, an example of various sources shown in FIG. 6 will be described. When the HD playback unit 205 is selected, music data such as MP3 files and image data such as JPEG files stored in the hard disk (HD), navigation data, etc. The map data and the like are read out, and menu display and image data for selecting music data can be displayed on the display unit 7.

  The navigation unit 206 includes a map information storage unit that stores map information used for navigation, obtains information from the VICS information reception unit 212 and the GPS information reception unit 213, and creates an image for the navigation operation. Can be displayed. Also, the TV receiving unit 203 receives an analog TV broadcast wave or a digital TV broadcast wave from the antenna via the selector 214.

  FIG. 8 is a block diagram illustrating an outline of the control unit 200.

  The control unit 200 controls the distribution circuit 207 and various sources, and displays the selected two sources or one source. The control unit 200 also displays an operation menu display for controlling these various sources on the display unit 7. Here, as illustrated in FIG. 8, the control unit 200 is configured by a microprocessor or the like, and includes a CPU 230 that comprehensively controls each unit and each circuit in the display device via the interface 229. The CPU 230 is provided with a program storage unit 231 including a ROM that stores various programs necessary for the operation of the display device, and a data storage unit 232 including a RAM that stores various data. Note that the ROM, RAM, and the like can be used either those built in the CPU 230 or those provided externally. The ROM may be an electrically rewritable nonvolatile memory such as a flash memory.

  The user controls the various sources by using the operation unit 215 to perform an input operation or a selection operation such as voice recognition or a switch provided around the touch panel 124 attached to the surface of the display unit 7 or the display unit 7. be able to. Further, an input or selection operation may be performed by the remote controller 217 via the remote controller transmission / reception unit 216. The control unit 200 performs control including various sources in accordance with the operation of the touch panel 124 and the operation unit 215. Moreover, the control part 200 is comprised so that each audio | voice volume etc. of the speaker 16 with which the inside of a vehicle was equipped like FIG. In addition, the control unit 200 stores various setting information such as image quality setting information, a program, and vehicle information in the memory 218.

  FIG. 9 is a block diagram showing an outline of the memory 218.

  For example, as shown in FIG. 9, the memory 218 includes a first screen RAM 233 and a second screen RAM 234 in which adjustment values of image quality of the first image and the second image set by the user can be written. Also, image quality setting information storage means 235 in which a plurality of image quality adjustment values are stored in advance for each image quality adjustment as preset values that can be read out when adjusting the image quality of the first image and the second image. Have. Furthermore, in order to adjust the image quality according to changes in the surrounding environment such as the brightness change outside the vehicle, an environment adjustment value holding unit 236 that holds adjustment values of the image quality of the first video and the second video with respect to the surrounding environment is provided. Have. Here, the image quality setting information storage unit 235 and the environmental adjustment value holding unit 236 are configured by an electrically rewritable nonvolatile memory such as a flash memory or a battery-backed volatile memory.

  For example, an image from the rear monitoring camera 220 connected to the external audio / video input unit 219 may be displayed on the display unit 7. In addition to the rear monitoring camera 220, a video camera, a game machine, and the like may be connected to the external audio / video input unit 219.

  The control unit 200 is based on information detected by the brightness detection unit 221 (for example, a vehicle light switch or optical sensor) or the occupant detection unit 222 (for example, a pressure sensor provided in a driver seat or a passenger seat). It is possible to change settings such as the sound localization position.

  The rear display unit 223 is a display unit provided for the rear seat of the vehicle, and is the same as the image displayed on the display unit 7 via the image output unit 211, or an image for the driver's seat or for the passenger seat One of the images can be displayed.

  The control unit 200 also displays a charge display from the ETC in-vehicle device 224. In addition, the control unit 200 may control the communication unit 225 for wireless connection with a mobile phone or the like, and information related thereto may be displayed.

[Example 1]
Next, in the above-described display device, the video (first display image 8) displayed on the passenger seat side according to the situation of the vehicle and the surroundings of the vehicle is the same navigation video (second display image) as the driver seat side. 9) An example of automatically switching and displaying will be described. In the first embodiment, when a direction instruction indicating a right turn or a left turn is displayed on the video for navigation, or when a guidance for a right turn or a left turn is given by voice, the same navigation is performed on both the driver's seat side and the passenger seat side. It is an example to make a video for.

  FIG. 10 is a diagram illustrating a display example of the first embodiment. In the display unit 7, a television image is displayed on the passenger seat side, and a navigation image is displayed on the driver seat side.

  When a right turn instruction or a left turn instruction is displayed on the navigation video, the video on the passenger seat side is switched from the video on the TV to the same navigation video on the driver seat side. Alternatively, when a direction instruction for turning right or left is given by voice, the image on the passenger seat side is switched from the image on the television to the image for navigation.

  Thus, since both can see the same navigation image, for example, the passenger on the passenger seat side can verbally tell the driver about a right turn or the like. In addition, the occupant can confirm the intersection that should originally bend from the navigation image. Therefore, the driver does not make a mistake on the road, such as passing through an intersection without making a right turn.

  FIG. 11 is an example of a flowchart showing the operation of such processing. This flowchart shows a case where the navigation function is executed (when the distribution circuit 207 outputs the output video from the navigation unit 206 to the first or second image adjustment circuit 208, 209) and the route guidance is set. Be started. And it is repeatedly performed until route guidance is complete | finished.

  When the process is started (S10), the control unit 200 determines whether there is a guide point (right turn or left turn) on the guide route (S11). A guide point is a point where a vehicle should turn at an intersection or a branch point on a road searched by destination setting.

  If there is no guidance point (NO), this flow is ended (S17). When there is a guidance point (YES), the control unit 200 determines whether or not the vehicle has approached (or reached) the guidance point (S12).

  This determination is made as follows. That is, the navigation unit 206 acquires position information (such as latitude and longitude) indicating the current position of the vehicle from the GPS information receiving unit 213. The navigation unit 206 reads map data from the internal map information storage unit. From this map data and position information, the navigation unit 206 generates a navigation image including the current position of the vehicle.

  In addition, the occupant or the like can set the destination in advance by operating the operation unit 215. The set destination information is output to the navigation unit 206 under the control of the control unit 200. The navigation unit 206 searches for a route from the destination information to the destination. After the search, route information indicating the route to the destination is generated by the navigation unit 206 and stored in the data storage unit 232 in the control unit 200, for example. In this process, the navigation unit 206 reads out the route information and determines whether or not the vehicle is approaching an intersection or a branch point that should currently bend on the map from the position information of the vehicle.

  When approaching the position of an intersection or branch point that should bend, the navigation unit 206 outputs a signal indicating that the vehicle has approached the guidance intersection or the guidance branch point to the control unit 200. Based on this signal, the control unit 200 outputs to the navigation unit 206 a control signal for displaying a direction indication display such as a left turn or a right turn on the map screen. Therefore, the control unit 200 determines this processing (S12) based on whether or not a signal indicating that the vehicle has approached the guidance intersection or guidance branch point has been received from the navigation unit 206.

  Alternatively, the control unit 200 may determine whether or not an image has been recognized based on the video from the camera 220 to approach an intersection or a branch point where a right turn or the like is originally performed.

  When the vehicle is not approaching the guidance intersection or guidance branch point (NO in S12), the control unit 200 ends this flow (S17). On the other hand, when approaching a guidance intersection or guidance branch point (YES in S12), the control unit 200 sets both the first display video and the second display video to the same navigation video (S13).

  Specifically, this processing is performed as follows. That is, when the control unit 200 outputs a control signal for displaying a direction instruction such as a right turn on the map screen to the navigation unit 206, a navigation video output from the navigation unit 206 to the distribution circuit 207. A control signal for controlling the signal to be output to both the first image adjustment circuit 208 and the second image adjustment circuit 209 is output.

  In the case of an image from the camera 220, the control unit 200 outputs the control signal to the distribution circuit 207 when the control unit 200 recognizes an image of the right turn position or the like.

  In response to this control signal, for example, the distribution circuit 207 stops outputting the video signal output from the TV receiving unit 203 to the first image adjustment circuit 208, and the video signal from the navigation unit 206 is output to the first adjustment circuit. It outputs to 208.

  The navigation video signals adjusted by the first and second image adjustment circuits 208 and 209 are displayed on the display unit 7 as navigation videos via the image output unit 211.

  Therefore, as shown in FIG. 10, the display unit 7 displays a navigation image on the driver's seat side, and also displays the same navigation image on the passenger seat side.

  The same is true when there is an instruction to turn right or left by voice guidance. That is, when the control unit 200 receives information indicating that an intersection or a branch point is approached from the navigation unit 206 (YES in S12), the control unit 200 outputs a voice signal for voice guidance to the navigation unit 206. A control signal is output to At this time, if the control unit 200 outputs a control signal for causing the first and second image adjustment circuits 208 and 209 to output the output video from the navigation unit 206 to the distribution circuit 207 (S13). Processing can be performed in the same manner as in the above example. Note that the voice signal for voice guidance output from the navigation unit 206 is output as voice from the speaker 16 via the distribution circuit 207 and the voice adjustment circuit 210.

  After switching the video in S13, the control unit 200 determines whether or not the vehicle has passed through the guidance intersection or guidance branch (S14). Whether or not the vehicle has passed a guidance intersection or the like is determined from, for example, information on the current position of the vehicle and the traveling direction of the vehicle from the GPS information receiving unit 213.

  If the vehicle has passed the guidance intersection or guidance branch point (YES in S14), the control unit 200 displays the video before switching (S15). For example, the control unit 200 does not cause the distribution circuit 207 to output the output video of the navigation unit 206 to the first image adjustment circuit 208 but outputs the output video of the TV reception unit 203 to the first image adjustment circuit 208. Control to make it happen.

  On the other hand, if the vehicle has not passed the guidance intersection or the guidance branch point (NO in S14), the control unit 200 ends the process of this flowchart (S17).

  In the first embodiment, the map data is described as being stored in the map information storage unit of the navigation unit 206. However, for example, even if the map data is stored in the HD playback unit 205, the process can be performed in substantially the same manner. The navigation unit 206 sends an instruction to the control unit 200 to read the map data stored in the HD playback unit 205, and the control unit 200 reads the map data from the HD playback unit 205 and outputs it to the navigation unit 206. Therefore, the navigation unit 206 can generate a navigation video from the read map data and perform the above-described processing (S11, S12).

  In the first embodiment, the passenger on the passenger seat side has been described as viewing the TV video from the TV receiving unit 203 in advance, but in addition to this, the DVD video reproduced by the DVD reproducing unit 204 is viewed. It may be the case.

  In this case, when approaching a guidance intersection or guidance branch point, the same navigation image as the driver seat side is displayed on the passenger seat side, but the navigation image is displayed on the passenger seat side. Sometimes the video on the DVD may be stopped. This is so that the passenger on the passenger seat side can watch the continuation of the DVD video later. This can be realized by the control unit 200 outputting the above-described control signal to the distribution circuit 207 and outputting a control signal indicating the reproduction stop to the DVD reproduction unit 204.

  Note that the route information described above may be stored in the memory 218, the memory in the navigation unit 206, or the like in addition to the data storage unit 232 in the control unit 200.

[Example 2]
Next, Example 2 will be described. The second embodiment is an example in which the video displayed on the passenger seat side is switched to the same navigation video as the driver seat side and displayed immediately before the vehicle passes the intersection.

  FIG. 12 is a display example of the second embodiment. A television image is displayed on the passenger seat side, and a navigation image is displayed on the driver seat side. Before passing the intersection, the passenger side switches to the same navigation image as the driver side.

  This allows the passenger on the passenger side to check the navigation video before passing the intersection, so there is no mistake in the road. Alternatively, since the navigation video can be confirmed before passing through the intersection, it is possible to prevent a situation where the vehicle is bent at a place where it should not bend at the intersection.

  FIG. 13 is a flowchart showing the operation of such processing. This flowchart starts when the navigation function is executed. When the process is started (S20), the control unit 200 determines whether or not the vehicle is before passing the intersection (S21).

  The determination as to whether or not the vehicle has passed through the intersection is performed as follows, for example. That is, the navigation unit 206 acquires position information (latitude and longitude, etc.) indicating the current vehicle position from the GPS information receiving unit 213 and reads map data from the map information storage unit to include the current vehicle position. Generate video for navigation.

  The map information includes intersection information (such as latitude and longitude where the intersection is located) indicating the position of the intersection. From this intersection information and the position information from the GPS information receiving unit 213, it can be determined whether or not the vehicle is currently passing the intersection.

  When the navigation unit 206 determines that the vehicle is before passing the intersection, the navigation unit 206 outputs a signal indicating that the vehicle is before passing the intersection to the control unit 200. The control unit 200 determines this processing (S21) based on whether or not this signal is input.

  In addition to this, for example, it is possible to determine whether or not the vehicle is currently passing the intersection based on the VICS information received by the VICS information receiving unit 212.

  That is, when the VICS information includes information indicating “there is an intersection ahead” (either voice or text), the navigation unit 206 outputs a signal indicating that the intersection is ahead to the control unit 200. The control unit 200 can also determine whether or not this signal has been received.

  When the vehicle is not in front of the intersection (NO in S21), this process (S21) is repeated. Then, before the vehicle passes through the intersection (YES in S21), the control unit 200 makes both the first display video and the second display video the same navigation video (S22).

  That is, when the control unit 200 acquires a signal indicating that the vehicle has not passed the intersection from the navigation unit 206, the navigation video signal output from the navigation unit 206 is sent to the distribution circuit 207 by the first and second image adjustment circuits. A control signal is output so as to be output to 208 and 209.

  In response to this control signal, for example, the distribution circuit 207 stops outputting the TV video signal from the TV receiving unit 203 to the first image adjustment circuit 208, and the video from the navigation unit 206 is subjected to the first image adjustment. Output to the circuit 208.

  Accordingly, as shown in FIG. 12, the same navigation image is displayed on both the passenger seat side and the driver seat side before the vehicle passes the intersection.

  Next, the control unit 200 determines whether or not the vehicle has passed the intersection (S23). The processing is substantially the same as S14 in the first embodiment. Judgment is made from information on the current position and traveling direction of the vehicle from the GPS information receiving unit 213.

  When the vehicle passes through the intersection (YES in S23), the control unit 200 displays an image before switching (S24). The processing of this flowchart is repeated until the navigation function is stopped (S25).

  On the other hand, if the vehicle has not passed the intersection (NO in S23), the process of this flowchart is repeated until the navigation function is stopped (S25).

  Also in the second embodiment, the other examples described in the first embodiment can be applied, and the same effects can be obtained.

  In the second embodiment, the intersection may be not only a cross road but also a T-shaped road, a three-way, a four-way, or the like.

[Example 3]
Next, Example 3 will be described. Example 3 is an example in which when the vehicle moves before the entrance to the expressway, the image displayed on the passenger seat side is switched to the same navigation image as that on the driver seat side.

  FIG. 14 is a display example of the third embodiment. For example, a TV image is displayed on the passenger seat side, and a navigation image is displayed on the driver seat side. In this state, when the vehicle approaches the entrance / exit of the expressway, the image on the passenger seat side is switched from the TV image to the same navigation image as the driver seat side.

  As a result, passengers on the passenger seat side can also confirm getting on and off the expressway, so passengers on the passenger seat side can tell the driver verbally and enter and exit the expressway from the wrong entrance. , No mistakes will be made.

  FIG. 15 is an example of a flowchart showing processing operations. This flowchart is started by executing the navigation function. When the process is started (S30), the control unit 200 determines whether or not the vehicle is currently before the entrance / exit of the expressway (S31).

  Such a determination is made as follows. That is, the navigation unit 206 obtains position information indicating the current vehicle position from the GPS information receiving unit 213, reads out the map data stored in the map information storage unit, and includes a navigation image including the current vehicle position. Is generated.

  The map data includes position information (latitude and longitude, etc.) of the entrance / exit of the expressway. Therefore, the navigation unit 206 can determine whether or not the current vehicle has approached the entrance / exit of the expressway on the map from the location information of the entrance / exit of the expressway and the location information of the current vehicle. When approaching, the navigation unit 206 outputs a signal indicating that to the control unit 200.

  The control unit 200 determines whether or not the vehicle is before the entrance / exit of the expressway depending on whether or not this information is input (S31). Of course, as in the second embodiment, if the VICS information includes information indicating a high-speed doorway, the determination may be made based on this information.

  When the vehicle is not in front of the high-speed doorway (NO in S31), the control unit 200 repeats this process. When the vehicle is in front of the doorway (YES in S31), the control unit 200 is the same for both the passenger seat and the driver seat. Is displayed (S32).

  That is, when the control unit 200 receives a signal indicating a high-speed entry / exit from the navigation unit 206, the control unit 200 outputs the video output from the navigation unit 206 to the first and second image adjustment circuits 208 and 209 to the distribution circuit 207. A control signal for controlling to output the signal is output.

  In response to this control signal, for example, the distribution circuit 207 stops outputting the TV video signal from the TV receiving unit 203 to the first image adjustment circuit 208, and the video from the navigation unit 206 is subjected to the first image adjustment. The circuit 208 is also output.

  Therefore, as shown in FIG. 14, when the vehicle moves before the entrance / exit of the expressway, the same navigation image as that on the driver's seat side is displayed on the passenger seat side.

  Thereafter, the control unit 200 determines whether or not the vehicle has passed through the entrance / exit of the expressway (S33). When the vehicle has passed (YES), the video before switching is displayed (S34). And the control part 200 repeats this flowchart until a navigation function is stopped (S35).

  On the other hand, if the vehicle does not pass through the entrance / exit of the expressway (NO in S33), the control unit 200 repeats this flowchart without performing the process of S34 (S35).

  Also in the third embodiment, the other examples described in the first embodiment and the like can be applied, and the same effects can be obtained.

  Further, in the first embodiment, the example in which the navigation video is the same when instructing a right turn or left turn or before passing through the intersection has been described. There may be cases where the passenger on the passenger side does not know whether the video has been displayed.

  Therefore, when the navigation video becomes the same, the character information indicating the situation may be displayed superimposed on the navigation video. For example, “In front of the highway entrance”. As a result, the occupant can clearly understand whether the instruction is to turn right or left or before the entrance to the expressway.

  For example, when the control unit 200 outputs the above-described control signal to the distribution circuit 207 (S32), the control unit 200 outputs a control signal indicating before the entrance / exit of the expressway to the navigation unit 206. Upon receiving this control signal, the navigation unit 206 can be realized by reading each character information stored in the map information storage unit (or HD playback unit 205) and superimposing it on the navigation video.

[Example 4]
Next, Example 4 will be described. In the fourth embodiment, when the vehicle moves in the vicinity of the service area, the image displayed on the passenger seat side is switched to the same navigation image as that on the driver seat side.

  For example, a TV image is displayed on the passenger seat side, and a navigation image is displayed on the driver seat side. In this state, when the vehicle moves in the vicinity of the service area, the video on the passenger seat side is switched from the video on the TV to the video for navigation.

  Thereby, the passenger on the passenger seat side can confirm whether or not there is a break in the service area. In addition, by confirming the position of the service area by the occupant, it is also possible to confirm whether the current traveling position of the vehicle is moving along a predetermined route, and the road is not mistaken.

  FIG. 16 is an example of a flowchart showing the operation of such processing. When the process is started (S40), the control unit 200 determines whether or not the vehicle is in the vicinity of the service area (S41).

  Whether the vehicle is in the vicinity of the service area is substantially the same as in the third embodiment. That is, the navigation unit 206 acquires position information indicating the current position of the vehicle by the GPS information receiving unit 213, and acquires map data from the map information storage unit. As a result, the navigation unit 206 can generate a navigation image including the current position of the vehicle.

  Further, the map data includes information (such as latitude and longitude) indicating where the service area is located. Therefore, the navigation unit 206 can determine whether or not the current vehicle is in the vicinity of the service area on the map from the position information of the vehicle and the information indicating the position of the service area.

  When in the vicinity of the service area, the navigation unit 206 outputs a signal indicating that to the control unit 200. The control unit 200 determines this processing (S41) depending on whether or not such a signal is input.

  When the vehicle is not in the vicinity of the service area (NO in S41), the control unit 200 repeats the determination of the present process (S41) again. When the vehicle is in the vicinity of the service area (YES in S41), the control unit 200 operates on the passenger side and the driving side. The same navigation video is displayed on the seat side (S42).

  In this process (S42), as in the third embodiment, when the signal indicating that the vehicle is in the vicinity of the service area is received from the navigation unit 206, the control unit 200 notifies the distribution circuit 207 of the navigation unit 206. The control signal for controlling the video signal for navigation from the first to second image adjustment circuits 208 and 209 is output.

  In response to this control signal, for example, the distribution circuit 207 stops outputting the TV video signal from the TV receiving unit 203 to the first image adjustment circuit 208, and the video from the navigation unit 206 is subjected to the first image adjustment. Output to the circuit 208.

  Therefore, when the vehicle moves in the vicinity of the service area, the same navigation image as that on the driver's seat side can be displayed on the passenger seat side.

  Thereafter, the control unit 200 determines whether or not the vehicle has passed through the service area (S43). When the vehicle has passed (YES), the video before switching is displayed (S44). And the control part 200 repeats this flowchart until a navigation function stops (S45).

  On the other hand, when the vehicle does not pass through the service area (NO in S43), the control unit 200 repeats this flowchart without performing the process of S44 (S45).

  Also in the fourth embodiment, the other examples described in the third embodiment and the like can be applied, and the same effects can be obtained. The character information superimposed on the navigation video is, for example, “near the service area”.

[Example 5]
Next, Example 5 will be described. The fifth embodiment is an example in which when the vehicle moves to the vicinity of the destination, the video displayed on the passenger seat side is the same navigation video as the driver seat side.

  For example, a TV image is displayed on the passenger seat side, and a navigation image is displayed on the driver seat side. When the vehicle moves in the vicinity of the destination in this state, the image on the passenger seat side is switched from the TV image to the navigation image.

  As a result, the passenger on the passenger seat side can also confirm that the vehicle is in the vicinity of the destination, and there is no mistake in the road. In addition, the roads around the destination are often complicated, so passengers can check the navigation video and give verbal advice to the driver. You can reach the ground.

  FIG. 17 is an example of a flowchart showing the operation of such processing. When the navigation function is executed and the route guidance is set, the process is started. When the process is started (S50), the control unit 200 determines whether or not the vehicle is near the destination (S51).

  The determination as to whether or not the vehicle is near the destination is substantially the same as in the fourth embodiment. That is, the navigation unit 206 acquires position information indicating the current position of the vehicle by the GPS information receiving unit 213. Further, the navigation unit 206 reads the map data stored in the map information storage unit, and generates a navigation video including the current position of the vehicle from the acquired position information.

  The destination can be set in advance by a user (driver or occupant) operating the operation unit 215 and inputting the position of the destination. The location information of the destination is stored in the memory 218, for example. Then, during this processing (S51), the navigation unit 206 outputs an instruction to the control unit 200 to read out the position information of the destination from the memory 218, and the position information is read out by the control unit 200 and is sent to the navigation unit 206. Is output.

  The location information of the destination may be stored in the map information storage unit in the navigation unit 206 or the data storage unit 232 in the control unit 200.

  Then, the navigation unit 206 can determine whether the current vehicle is in the vicinity of the destination on the map from the set (stored) position information of the destination and the current vehicle position information.

  When the navigation unit 206 determines that the vehicle is currently near the destination, the navigation unit 206 outputs a signal indicating that to the control unit 200. The control unit 200 determines this processing (S51) by determining whether or not a signal indicating that the vehicle is near the destination is input.

  When the vehicle is not near the destination (NO in S51), the control unit 200 repeats the determination of this process (S51) again. When the vehicle is in the vicinity of the destination (YES in S51), the control unit 200 controls each unit 207 and the like so as to display the navigation display image together with the first display image and the second display image (S52).

  That is, when a signal indicating that the vehicle is near the destination is input from the navigation unit 206, the control unit 200 outputs the navigation video signal output from the navigation unit 206 to the distribution circuit 207. Control signals for controlling the image adjusting circuits 208 and 209 to output the image signals.

  Based on the control signal, for example, the distribution circuit 207 stops outputting the TV video signal from the TV reception unit 203 to the first image adjustment circuit 208, and displays the video from the navigation unit 206 as the first video signal. The image adjustment circuit 208 outputs the result.

  Therefore, when the vehicle moves to the vicinity of the destination, the same navigation image as that on the driver's seat side is displayed on the passenger seat side.

  Thereafter, the control unit 200 determines whether or not the vehicle has arrived at the destination (S53). When the vehicle has arrived at the destination (YES), a series of processing ends (S54). On the other hand, if the vehicle has not arrived at the destination (NO in S53), this process (S53) is repeated.

  Also in the fifth embodiment, the other examples described in the fourth embodiment and the like can be applied, and the same effects can be obtained. When character information is superimposed on the navigation video, for example, “currently near destination” is displayed.

[Other embodiments]
In each embodiment, the processing is performed while starting the navigation. However, in the second to fourth embodiments, the navigation function is executed behind the scenes, and the navigation screen is displayed when approaching each point. You may do it. This is because even when the driver's seat sees a different display, the driver can reconfirm.

  In the first to fifth embodiments, the example in which the same navigation image as that on the driver's seat side is displayed on the passenger seat side in accordance with various vehicle situations and situations around the vehicle has been described. Furthermore, the present invention can be applied even in the following situation.

  In other words, when the region (prefecture, city, town, village) is changed due to the traveling of the vehicle, the same navigation image as that on the driver's seat side is switched to the passenger seat side and displayed.

  When the vehicle travels with the region changed, the navigation image is displayed to the passenger on the passenger seat side, so that the passenger can know which region the vehicle is currently traveling. Since the passenger can know whether the vehicle is running as originally planned, it is possible to prevent the vehicle from running on the wrong road.

  For example, information indicating the position of each region is stored in the map information storage unit (or HD playback unit 205) of the navigation unit 206, and the vehicle is displayed on the map from the current position received by the GPS information receiving unit 213. The navigation unit 206 can determine whether or not the user is moving with the change.

  When the area is changed, the navigation unit 206 outputs such a signal to the control unit 200, and the control unit 200 controls the distribution circuit 207 in the same manner as in the first embodiment, and the first and second image adjustment circuits 208, This can be realized by outputting the video signal for navigation output from the navigation unit 206 to 209.

  As another example, when the vehicle is running out of fuel such as gasoline, it may be switched to the same navigation image on the passenger seat side as on the driver seat side.

  As a result, the passenger's seat side can be informed of running out of fuel, and passengers on the passenger's seat can search for a gas station by viewing the navigation image, and inform the driver of the fuel out of fuel and the location of the gas station. it can. Therefore, the occupant can support the driver.

  For example, when the fuel detection unit is connected to the control unit 200 and the vehicle is in the vicinity of running out of fuel, a signal indicating that is output from the fuel detection unit.

  Then, when the control unit 200 receives such a signal, it can be realized by controlling the distribution circuit 207 in the same manner as in the above example.

  Or you may detect whether it is near a fuel exhaustion by meter ECU (Electric Control Unit) via the gateway connected to the vehicle interior network, for example, the control part 200. FIG.

  As another example, while the TV image is displayed on the passenger seat side by the TV receiving unit 203, the same navigation image as that on the driver seat side is switched and displayed on the passenger seat side during the CM of the TV. May be.

  Thus, the navigation image that is the same as that on the driver's seat side is used only when the program information is not necessary, so that the passenger on the passenger seat side can confirm the current vehicle position and know what is in the vicinity. In addition, the occupant can support the driver using time effectively.

  Processing is as follows. That is, the TV receiving unit 203 receives a TV signal. The received TV signal is output to the control unit 200. The control unit 200 detects whether or not there is a silent part in the TV signal continuously for a certain frame period from the beginning. In a TV signal indicating CM, there is a silent period in which an audio signal is not included in a certain frame period. By detecting this, it is possible to detect whether the TV signal indicates CM.

  There are various types of CM detection. For example, since a signal indicating whether the signal is stereo or monaural is inserted in the TV signal, it is determined that the CM is a CM when changing from stereo to monaural or from monaural to stereo. It may be detected.

  Further, when a program other than CM is broadcast in two languages, a change from two languages to one language may be detected to detect the CM. Furthermore, the CM may be detected by the combination described above.

  Further, in the case of digital TV broadcasting such as terrestrial and satellite, if the received signal contains a code indicating whether or not it is a CM, it can also be determined whether or not it is a CM by detecting this code.

  When the control unit 200 detects that it is CM, the distribution circuit 207 is controlled in the same manner as described above, and the video signal from the navigation unit 206 is output to the first and second image adjustment circuits 208 and 209. Navigation video is also displayed on the passenger side during the TV commercial period.

  The silent period may be detected by the TV receiving unit 203. In this case, when such detection is performed, a signal indicating that is output to the control unit 200, and the control unit 200 controls the distribution circuit 207 in the same manner as described above, assuming that a CM is detected.

  As yet another example, when the TV signal displayed on the passenger seat side cannot be received, it may be displayed by switching to the same navigation image as on the driver seat side.

  This allows the passenger on the passenger side to see the same navigation image as on the driver's side until they can see the TV image. Etc., can support the driver.

  For example, a TV signal received by the TV receiving unit 203 is output to the control unit 200. The control unit 200 reads the threshold value stored in the data storage unit 232 (see FIG. 8) or the memory 218, and determines whether or not the TV signal has reached a certain signal level. When the value is equal to or lower than the threshold value, the control unit 200 determines that the TV signal cannot be received because the received TV signal has not reached a certain signal level, and controls the distribution circuit 207 as described above. Alternatively, the TV receiving unit 203 may make such a determination.

  As another example, when a passenger in the passenger seat is watching a DVD image from the DVD playback unit 204, the navigation image is switched to the same navigation image on the passenger side as the chapter (chapter) is switched. May be.

  The DVD video starts with titles and the like for each chapter. By displaying a navigation video on the passenger seat side at the end of a chapter, the passenger can know the break timing, the current position of the vehicle, and the like. In addition, the driver can support the driver by notifying the driver of information about the driver.

  For example, chapter switching is detected by outputting a DVD signal reproduced from the DVD reproducing unit 204 to the control unit 200 and detecting a code indicating the end of the chapter from the DVD signal by the control unit 200. Do. Alternatively, it may be detected by the DVD playback unit 204 and a signal to that effect may be output to the control unit 200.

  When the control unit 200 detects that the chapters are switched, the above-described control is performed on the distribution circuit 207, so that the same navigation video as the driver's side is displayed on the passenger seat by switching the chapters on the DVD. .

  As another example, the same navigation video may be displayed on the passenger seat side and the driver seat side at time intervals (every 10 minutes, every 30 minutes). Since the same navigation video is displayed at time intervals, it also serves as a clock for the passenger on the passenger side. In addition, the navigation video is displayed, so that the occupant can check which area the vehicle is currently traveling, and the driver can be supported by telling the driver of this.

  The time is measured by, for example, a timer in the control unit 200 or an internal clock. When the time stored in advance in the data storage unit 232 or the memory 218 is reached, the control unit 200 controls the distribution circuit 207 so that the same navigation video is displayed in both cases.

  The time interval can be input by operating the operation unit 215 by an occupant or the like, and the information is stored in the data storage unit 232 or the like.

  As another example, a place (point) where the navigation image is the same on the passenger seat side and the driver seat side is determined at the departure point (or any point), and the navigation image is switched when the vehicle moves to that place. .

  By deciding the switching place in advance, you won't get lost. For example, by determining a specific switching location for a complex road, both vehicles are switched to the navigation video when the vehicle moves to that road, so that the road is not lost.

  As for the switching location, for example, information on the switching location is stored in the memory 218 or the like by operating the operation unit 215. The navigation unit 206 determines whether the current vehicle is the switching location on the map from the information on the switching location, the current location information of the vehicle received by the GPS information receiving unit 213, and the map data stored in the map information storage unit. I can judge. If it is a switching place, the signal is output to the control unit 200, and the control unit 200 performs processing for the distribution circuit 207 described above.

  As another example, at the departure point (or any point), the time and section for determining the same navigation image on both the passenger side and the driver's seat side are determined, and the same navigation image is displayed during the time and section. You can also For example, the same navigation video may be used for 10 minutes from a certain location, or the same navigation video may be provided for a section from one location to another.

  Also in this case, since a complicated road section or the like can be determined, the user will not get lost.

  The time and section are stored in the memory 218 and the like by the operation unit 215 as in the above example. Then, similarly to the above-described example, the navigation unit 206 determines whether or not the vehicle is currently in the time or section based on the information indicating the current position and the information read from the memory 218 or the like. If it is within the time, a signal to that effect is output to the control unit 200, and the control unit 200 controls the distribution circuit 207.

  Furthermore, as another example, when the driver uses a direction indicator, the same navigation image may be displayed on both the passenger seat side and the driver seat side.

  Passengers on the passenger side can confirm the intersection where the driver is about to turn by using the navigation image, so there is no mistake in the road. For example, when there is no direction indication by the navigation video and a driver who is familiar with the road is going to turn on a road off the route, the occupant confirms the navigation video so that the road is not mistaken.

  For example, when it is detected whether or not the turn indicator is used by the winker detection unit 240 and a signal indicating that the turn indicator is used is input to the control unit 200, the control unit 200 controls the distribution circuit 207 as described above. This is possible.

  Furthermore, as another example, before the vehicle enters a traffic jam, both the passenger seat side and the driver seat side may use the same navigation image. Since a navigation video is displayed on the passenger side, a detour or the like can be searched. Therefore, it also provides support to the driver.

  Whether or not the vehicle has entered a traffic jam can be detected by, for example, VICS information. Since the VICS information includes a code indicating whether or not information related to a traffic jam is included, the VICS information can be detected based on whether or not the VICS information received by the VICS information receiving unit 212 includes this code. Such determination may be performed by the navigation unit 206 or the control unit 200.

  Then, when detecting that a traffic jam has occurred, the control unit 200 controls the distribution circuit 207 as described above, so that both can display the same navigation video.

  Furthermore, as another example, when the vehicle is in a dangerous state, the same navigation image may be displayed on both the passenger seat side and the driver seat side. The passenger on the passenger's seat can be aware of changes in traffic conditions such as an accident, and can avoid danger or search for a detour.

  Whether or not the vehicle is in a dangerous state can be detected, for example, based on whether or not the automatic brake system is activated. As shown in FIG. 18, when the brake ECU 241 is connected to the control unit 200 via the gateway 242, when the automatic brake system is activated, a signal indicating this state is sent from the brake ECU 241 to the control unit 200 via the gateway 242. Entered. When such a signal is input, the control unit 200 performs the above-described control on the distribution circuit 207, so that both display the same navigation video.

  Any of the embodiments described in the other embodiments can be applied to the other examples described in the first to fifth embodiments, and exhibit the same effects.

  All of the above-described examples have been described with respect to the example in which the video displayed on the passenger seat side is automatically switched to the video for navigation and displayed in accordance with the situation around the vehicle and the like. Conversely, it may not be switched to the navigation video under certain circumstances. This is a so-called prohibition setting. The complicated switching of the screen can be prevented.

  For example, when the vehicle returns to the departure point after arriving at the destination (in the case of a return trip), the driver is unlikely to make a mistake because the driver has taken the road once on the outward trip. Therefore, the passenger side does not automatically switch to the navigation image on the return path. For example, the control unit 200 can be realized by not performing the above-described control on the distribution circuit 207 even if each of the above-described information indicating the state of the vehicle is input from the navigation unit 206 or the like.

  As another example, a time may be specified so that neither of them is switched to the navigation video within the time. This is convenient when there is a TV program that the passenger on the front passenger side wants to watch. For example, the operation unit 215 designates a non-switching time and stores the information in the memory 218, the data storage unit 232, or the like. Then, the control unit 200 compares the current time with the stored time by a timer or the like, and if it is within the time, even if various information indicating the vehicle status is input from the navigation unit 206 or the like, distribution is performed. This can be realized by not performing the above-described control on the circuit 207.

  The following example is an example of how long the navigation video is displayed on the passenger seat side when the passenger seat side is switched to the navigation video. It can be applied to all embodiments other than the prohibition setting.

  The first example is an example in which a switching time is set in advance, a navigation video is displayed on the passenger seat side for the set time, and the original screen is restored when the set time is exceeded. The time for displaying the navigation video on the passenger side is switched to a time that allows the passenger on the passenger side to grasp the information displayed in the video, so that it can be restored after that time. Become.

  Also in this case, the switching time is input by the operation unit 215 and stored in the memory 218 or the like, and when the time stored by the control unit 200 by the timer or the like has elapsed, the distribution circuit 207 is controlled, for example, TV reception The output of the unit 203 is output to the first image adjustment circuit 208. This can be realized by storing the image source 201 immediately before switching in the data storage unit 232 in the control unit 200.

  The following example is an example in which both the navigation images are set to the same while the direction indicator is being operated, and the screen on the passenger seat side is returned to the original screen when the direction indicator is restored. Since the direction indicator is operated from before the right turn or left turn to the end of the right turn, the same navigation video is used during this time.

  FIG. 19 is a flowchart showing the processing operation. In this flowchart as well, the processing is started when the navigation function is executed as in the first embodiment. When the process is started (S60), the control unit 200 determines whether or not the winker is operated (S61). When the winker is operated by the driver, the winker detection unit 240 detects it and outputs the information of the control unit 200. Therefore, the determination is based on whether or not such information is input.

  When the winker is operated (YES), the control unit 200 displays the same navigation video for both (S62). As in the first embodiment, the control unit 200 executes the control by controlling the distribution circuit 207. Next, the process proceeds to S63.

  On the other hand, if the winker is not operated (NO in S61), the process proceeds to S63 without switching the video (S62).

  In S63, the control unit 200 determines whether or not the winker has been returned (S63). For example, when the winker is returned to the original state, the winker detection unit 240 detects the state and sends the information to the control unit 200, and thus makes a determination based on this information.

  When the winker is restored (YES in S63), the control unit 200 displays the video before switching (S64), as in the first embodiment. For example, the control unit 200 controls the distribution circuit 207 to output the output of the TV reception unit 203 to the first image adjustment circuit 208, thereby returning the video displayed on the passenger seat side to the original screen video. . Also in this example, the source (201, etc.) immediately before switching the passenger seat side to the navigation video is stored and restored.

  And the control part 200 repeats this flowchart until a navigation function stops (S65). On the other hand, if the winker is not restored (NO in S63), this flowchart is repeated without performing the process of S64 (S65).

  Further, as a next example, both are set to the same navigation video during the CM, and are returned to the original screen when the CM ends. During the CM period, there is a case where the passenger in the passenger seat does not need to look in particular. In such a case, the screen is switched to a screen on which a navigation video is displayed.

  For example, the control unit 200 or the TV receiving unit 203 detects a silent period in the last part of the CM in the TV signal, changes from monaural to stereo (or vice versa), changes from one language to two languages, etc. The end of CM is detected. When such a state is detected by the control unit 200 or the like, the control unit 200 does not output the output of the navigation unit 206 to the first image adjustment circuit 208, for example, but outputs the output of the TV reception unit 203 to the first image adjustment circuit 208. The distribution circuit 207 is controlled to output to the image adjustment circuit 208. Of course, even in this case, the control unit 200 stores and restores the source (201, etc.) immediately before switching to the navigation image on the passenger side.

  The above is an example of prohibition setting. The following example is an example in which the video displayed on the passenger seat side is automatically switched to the video for navigation depending on the vehicle situation or the like, and the switching is not selected.

  For example, when the occupant or the like operates the operation unit 215, such information is input to the control unit 200, and even if various information is input from the navigation unit 206 or the like, the above-described distribution circuit 207 is not controlled. That's fine.

  In all of the above-described embodiments, description has been made by applying the present invention to a display device that displays separate images (driver seat image and passenger seat pixel) on the same display in two viewing directions. In addition to this, a display device that displays one image or a display device that displays individual images for two or more viewing directions may be used.

1 is a conceptual diagram of a display device according to the present invention. It is a perspective view which shows the example of mounting of a display apparatus. It is the schematic of the cross-section of a display part. It is the schematic of the structure which looked at the display panel from the front. It is a circuit diagram which shows the outline of a TFT substrate. It is a block diagram which shows the outline of the display apparatus which concerns on this invention. 2 is a block diagram illustrating an outline of an image output unit 211. FIG. 2 is a block diagram illustrating an outline of a control unit 200. FIG. 2 is a block diagram showing an outline of a memory 218. FIG. It is an example of the image | video displayed on the display part. It is an example of the flowchart which shows the operation | movement of a process. It is an example of the image | video displayed on the display part. It is an example of the flowchart which shows the operation | movement of a process. It is an example of the image | video displayed on the display part. It is an example of the flowchart which shows the operation | movement of a process. It is an example of the flowchart which shows the operation | movement of a process. It is an example of the flowchart which shows the operation | movement of a process. It is a block diagram which shows the outline of the other display apparatus which concerns on this invention. It is an example of the flowchart which shows the operation | movement of a process.

Explanation of symbols

1: first image source, 2: second image source, 3: first image data, 4: second image data, 5: display control unit, 6: display data, 7: display unit, 8: First display image, 9: Second display image, 10: Observer, 11: Observer, 12: Passenger seat, 13: Driver's seat, 14: Windshield, 15: Operation unit, 16: Speaker, 100: Liquid crystal panel, 101: backlight, 102: polarizing plate, 103: polarizing plate, 104: TFT substrate, 105: liquid crystal layer, 106: color filter substrate, 107: glass substrate, 108: parallax barrier, 109: left side (passenger seat) Side) display pixel, 110: right side (driver's seat) display pixel, 111: display panel drive unit, 112: scanning line drive circuit, 113: data line drive circuit, 114: TFT element, 115 to 118: Data line, 119 121: scanning line, 122: pixel electrode, 123: subpixel, 124: touch panel, 200: control unit, 201: CD / MD playback unit, 202: radio reception unit, 203: TV reception unit, 204: DVD playback unit, 205: HD (Hard Disk) playback unit, 206: Navigation unit, 207: Distribution circuit, 208: First image adjustment circuit, 209: Second image adjustment circuit, 210: Audio adjustment circuit, 211: Image output unit, 212: VICS information reception unit, 213: GPS information reception unit, 214: selector, 215: operation unit, 216: remote control transmission / reception unit, 217: remote control, 218: memory, 219: external audio / video input unit, 220: camera, 221: Brightness detection means, 222: Occupant detection means, 223: Rear display unit, 224: ETC vehicle-mounted device, 225: Communication unit, 22 : First write circuit, 227: second write circuit, 228: VRAM (Video RAM), 229: interface, 230: CPU, 231: program storage unit, 232: data storage unit, 233: first Screen RAM, 234: Second screen RAM, 235: Image quality setting information storage means, 236: Environment adjustment value holding means, 240: Winker detection unit, 241: Brake ECU, 242: Gateway

Claims (13)

In an in-vehicle display device that displays a plurality of videos in one screen and can view different videos at different viewpoint positions.
Control means for automatically switching at least the video that can be seen on the passenger side to the navigation video according to the situation around the vehicle,
A vehicle-mounted display device comprising:   The in-vehicle display device according to claim 1, wherein the control unit performs the switching when approaching a predetermined type of guide point.   The in-vehicle display device according to claim 1, wherein the control unit performs the switching when a direction instruction indicating a right turn or a left turn is indicated on the navigation video.   The in-vehicle display device according to claim 1, wherein the control unit performs the switching when a direction instruction indicating a right turn or a left turn is guided by voice.   The in-vehicle display device according to claim 1, wherein the control unit performs the switching before the vehicle passes an intersection.   The in-vehicle display device according to claim 1, wherein the control unit performs the switching when the vehicle approaches an entrance / exit of an expressway.   The in-vehicle display device according to claim 1, wherein the control unit performs the switching when the vehicle approaches a service area.   The in-vehicle display device according to claim 1, wherein the control unit performs the switching when the vehicle approaches a preset destination.   The in-vehicle system according to claim 1, wherein the control means can perform prohibition setting so that at least a video that can be visually recognized on the passenger seat side is not switched to the navigation video when the situation is different from the situation around the vehicle. Display device.   The in-vehicle display device according to claim 1, wherein the control unit can perform prohibition setting not to perform the switching when an image visible on a driver's seat side is not an image for navigation.   2. The control unit according to claim 1, wherein when the video that can be visually recognized on the driver's seat side is a navigation video and route guidance is not performed, a prohibition setting that does not perform the switching can be performed. In-vehicle display device.   The control means compares the position information indicating the current position of the vehicle with information indicating the situation around the vehicle, and identifies the vehicle based on the information indicating the situation around the vehicle from the position information. The vehicle-mounted display device according to claim 1, wherein the switching is performed when a situation around the vehicle becomes. In a display control program for an in-vehicle display device that displays a plurality of videos in one screen and displays the videos substantially simultaneously so that different videos can be viewed at different viewpoint positions.
Processing to automatically switch at least the video displayed on the passenger seat side to the video for navigation according to the situation around the vehicle,
A display control program for causing a computer to execute.

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