JP2012217097A - On-vehicle moving image display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an on-vehicle moving image display device performing display control capable of improving amusement for a vehicle driver with secured safety during running.SOLUTION: In display processing, each parameter is acquired based on the running state of a vehicle (S110), and if the vehicle is running (No in S120), each acquired parameter is input into a load conversion table, so that a load level of the driver relative to vehicle driving is output, and driving load estimation information representing the load level is generated (S130). Based on the generated driving load estimation information, only when the load level is within a tolerable level range (Yes in S150), single-frame-step still images are displayed (S160). By this, as compared to the case where moving image display is uniformly inhibited during driving, amusement contents such as television can be provided without distracting the attention of the driver.

Description

  The present invention relates to an in-vehicle moving image display device that is mounted on a vehicle and displays various moving images.

  2. Description of the Related Art Conventionally, an in-vehicle video display device that is attached to a vehicle center console or the like and includes a motor that rotates a display surface from a driver seat side to a passenger seat side (or vice versa) is known (for example, Patent Document 1).

  In this in-vehicle moving image display device, when the vehicle is running, when it is recognized that the direction of the display surface is the driver's seat side and a moving image is displayed on the display surface, it is driven by a motor. By performing display control such that the orientation of the display surface is rotated to the passenger seat side, the display of moving images during the traveling of the vehicle is uniformly prohibited for the driver.

JP 2003-200808 A

  However, in the conventional in-vehicle video display device, even when the vehicle is running, the still image frame feed video such as the navigation screen is displayed to the driver, whereas the moving image display such as a television is displayed. Therefore, there is a possibility that the two are not consistent, and the driver is dissatisfied with excessive deprivation of entertainment.

  In order to solve the above-described problems, an object of the present invention is to provide an in-vehicle video display device that performs display control capable of improving amusement for a driver while ensuring safety during traveling. And

  The in-vehicle moving image display device according to claim 1, which is an invention made to achieve the above object, has at least a display surface attached to a position visible from a driver's seat side in the vehicle, and displays a moving image on the display surface. Display means, estimated information generation means, and display control means.

  Specifically, the estimation information generating means generates driving load estimation information that represents the driver's load level for driving the vehicle based on the driving state of the vehicle, and the display control means estimates the estimation information when the vehicle is driving. Based on the driving load estimation information estimated by the generating means, only when the load level is within a preset allowable level range, the frame images constituting the moving image are set at fixed intervals. The display means is controlled so as to be displayed on the driver's seat side by skip feeding.

  In the in-vehicle video display device configured in this way, when the vehicle is running, even if the display surface is in a position that is visible to the driver and a moving image is displayed on the display surface, Only when the driver has a relatively large margin without prohibiting the display of the moving image uniformly for the driver, the moving image is displayed as a still image frame advance video such as a navigation screen.

  Therefore, according to the in-vehicle video display device of the present invention, a moving image such as a television can be presented to the driver within a range that does not affect the traveling even when the vehicle is traveling. It is possible to improve the recreation for the driver while ensuring the safety of the driver. In addition, since a similar moving image can be presented to passengers other than the driver (for example, passengers seated in the passenger seat), the configuration for rotating the display surface such as a motor is omitted. This makes it possible to reduce the manufacturing cost.

  The driving load estimation information can estimate the load level based on, for example, the speed of the vehicle, the external environment at the current location, etc., as the running state of the vehicle. Also, even when a moving image such as a TV is displayed as a still image frame advance video (frame image) such as a navigation screen, by outputting audio corresponding to the moving image as usual, If the frame image is visually recognized, the driver can grasp the content of the moving image with relatively little stress.

  By the way, in the vehicle-mounted moving image display device of the present invention, as described in claim 2, the display control means may set the skip feed interval so as to become longer according to the load level. In the on-vehicle video display device configured in this way, the higher the load level, the slower the timing for switching the frame images, so it is possible to prevent the driver from paying too much attention to the display surface when there is relatively little room can do.

  According to a third aspect of the present invention, there is provided line-of-sight detection means for detecting the direction of the driver's line of sight, and the display control means detects the driver's line of sight from the display surface based on the detection result by the line-of-sight detection means. When the vehicle deviates, control for permitting normal display of a moving image by the display unit may be performed regardless of the content of the driving load estimation information (and the magnitude of the load level). Here, the normal display means that a moving image is displayed at a predetermined normal speed without performing skip sending.

  In the in-vehicle video display device configured as described above, even when the driver has a relatively small margin, if the driver does not pay attention to the display surface, the moving image is displayed as usual. Therefore, it is not necessary for the driver to affect driving even when the vehicle is traveling, and it is possible to allow a passenger other than the driver to view a moving image on a television or the like without imposing restrictions.

  Further, as described in claim 4, it is provided with a line-of-sight detection means for detecting the direction of the line of sight of the driver, and the display control means is provided by the line-of-sight detection means even when the load level is within the allowable level range. On the basis of the detection result, when the driver's line of sight is facing the display surface beyond a preset time limit, control for prohibiting the display of the moving image by the display unit may be performed exceptionally.

  In the on-vehicle video display device configured in this way, even if the driver has room, it may affect the driving if the driver is excessively paying attention to the display surface. In some cases, by prohibiting the display of moving images, the driver can be alerted to the driving of the vehicle, and safety can be emphasized more.

  Further, as described in claim 5, when the display control unit prohibits the display of the moving image, the display control unit displays a warning still image for directing the driver's line of sight toward the front of the vehicle. Control may be performed. In this case, the driver can intuitively know the reason why the moving image is not displayed, so that the driver can feel unnecessarily concerned that the in-vehicle video display device may be out of order. Safe driving can be promptly promoted.

It is a block diagram which shows the structure of the vehicle control system of this embodiment. It is a block diagram which shows the structure of the vehicle-mounted moving image display apparatus to which this invention was applied. It is a flowchart which shows the display process which a control part performs. It is a matrix figure for demonstrating the operation example of a vehicle-mounted moving image display apparatus.

Embodiments of the present invention will be described below with reference to the drawings.
[overall structure]
FIG. 1 is a block diagram showing a configuration of a vehicle control system 1 of the present embodiment, and FIG. 2 is a block diagram showing a configuration of an in-vehicle moving image display device 3 to which the present invention is applied.

  As shown in FIG. 1, the vehicle control system 1 includes an in-vehicle moving image display device 3 having two display devices 11 and 13 arranged on a dashboard extending from the lower end of the vehicle windshield to the vehicle interior side. Yes. Note that the two display devices 11 and 13 are both attached so that their display surfaces are visible from the driver's seat side in the vehicle, and one of them is arranged at a position relatively close to the driver's seat side (for example, the center console). The other is disposed at a position relatively distant from the driver's seat side (a position relatively close from the passenger seat side). Hereinafter, of the two display devices 11 and 13, the main display device 11 is disposed at a position relatively close to the driver seat side, and the sub display device 13 is disposed at a position relatively distant from the driver seat side. Called.

  The on-vehicle video display device 3 is connected to an inter-vehicle control electronic control device (hereinafter referred to as “inter-vehicle control ECU”) 5, and the inter-vehicle control ECU 5 is connected to an engine electronic control device (hereinafter referred to as “engine”) via a LAN communication bus. ECU ") 7 and a brake electronic control unit (hereinafter referred to as" brake ECU ") 9 and other various ECUs. Each ECU is configured around a known microcomputer and includes at least a bus controller for performing communication via a LAN communication bus.

  The in-vehicle moving image display device 3 basically displays various moving images such as a television on at least one of the two display devices 11 and 13 and various still images such as a map on which the current location of the vehicle is superimposed. It is a device that displays frame-by-frame video or still images. In this embodiment, for a plurality of still images (frame images), a video that is framed within one second is a normal playback video, and a video that is framed for more than one second is a still image frame-advanced video. . Further, the normal playback video and the still image frame advance video are collectively referred to as a moving image.

  The brake ECU 9 transmits to the inter-vehicle control ECU 5 the brake pedal state determined based on information from an M / C pressure sensor (not shown) in addition to detection information (steering angle, yaw rate) from a steering sensor and yaw rate sensor (not shown). Then, the target acceleration, the brake request, etc. are received from the inter-vehicle control ECU 5, and the brake actuator that opens and closes the pressure increase control valve / pressure reduction control valve provided in the brake hydraulic circuit is driven according to the received information and the determined brake state. Thus, the brake force is configured to be controlled.

  The engine ECU 7 transmits detection information (vehicle speed, engine control state, accelerator operation state) from a vehicle speed sensor, a throttle opening sensor, and an accelerator pedal opening sensor (not shown) to the inter-vehicle control ECU 5. Then, a target acceleration, a fuel cut request, etc. are received from the inter-vehicle control ECU 5, and a drive command is sent to a throttle actuator or the like that adjusts the throttle opening of the internal combustion engine according to the operating state specified from the received information. By outputting, the driving force of the internal combustion engine is controlled.

  The inter-vehicle control ECU 5 receives target information from the front radar 6, vehicle speed and engine control state from the engine ECU 7, steering angle, yaw rate, brake operation state, and the like from the brake ECU 9. Further, the inter-vehicle control ECU 5 outputs set values by a cruise control switch, a target inter-vehicle setting switch, etc. (not shown) to the in-vehicle moving image display device 3, and based on these set values and the target information received from the front radar 6, the preceding vehicle As a control command for adjusting the inter-vehicle distance to an appropriate distance, a target acceleration, a fuel cut request, etc. are transmitted to the engine ECU 7, and a target acceleration, a brake request, etc. are transmitted to the brake ECU 9. To do. Further, the inter-vehicle control ECU 5 is configured to output the vehicle speed received from the engine ECU 7, the steering angle received from the brake ECU 9, and the brake operation state to the in-vehicle moving image display device 3.

  The forward radar 6 is configured as a so-called “millimeter wave radar” of the FMCW method, and recognizes objects such as vehicles and roadside objects by transmitting and receiving radar waves in the millimeter wave band subjected to frequency modulation. Based on these recognition results, target information relating to a preceding vehicle traveling ahead of the host vehicle is created and transmitted to the inter-vehicle distance control ECU 5. Incidentally, the target information includes at least the relative speed with respect to the preceding vehicle and the position (distance, azimuth) of the preceding vehicle.

[Configuration of in-vehicle video display device]
Here, the configuration of the in-vehicle video display device 3 will be described in detail.
As shown in FIG. 2, the in-vehicle video display device 3 includes an operation switch group 15 for inputting various instructions from the user, various guide voices, and terrestrial digital television, in addition to the two display devices 11 and 13 described above. An audio output device 17 for outputting sound by broadcasting, a terrestrial digital television broadcast receiver 19 for receiving terrestrial digital television broadcast, an image sensor 21 for detecting the direction of the driver's line of sight, and the like An external memory 23 for storing information, a position detector 25 for detecting the current position of the vehicle, and a hard disk drive (hereinafter referred to as “HDD”) 27 which is an external storage device for storing various data such as map data and programs. And a control unit 30.

  The position detector 25 receives a radio wave transmitted from an artificial satellite for GPS (Global Positioning System) via a GPS antenna, detects a position of the vehicle, etc., and an angular velocity of rotational motion applied to the vehicle. And a vehicle speed detector 35 for inputting a detection signal representing the vehicle speed from the inter-vehicle distance control ECU 5. Each of these devices 31, 33, and 35 has an error with different properties, and is configured to be used while complementing each other.

  The HDD 27 reads data from the hard disk based on the control from the control unit 30 and inputs the data to the control unit 30. The data stored in the HDD 27 includes map data, map matching data for improving position detection accuracy, route guidance data, and a program for realizing a navigation function.

  The display devices 11 and 13 are color display devices having a display surface such as a liquid crystal display, and display various images on the display surface in response to input of an image signal from the control unit 30. For example, a broadcast moving image received by the terrestrial digital television broadcast receiver 19 is displayed as a television screen. Further, as a navigation screen, a still image frame in which a mark indicating the current location of the vehicle detected by the position detector 25 and additional data such as a guidance route to the destination, a name, a landmark, and various landmark symbols are superimposed. The feed video is displayed.

  The operation switch group 15 includes a touch panel configured integrally with the display devices 11 and 13 and installed on a display screen, mechanical key switches provided around the display devices 11 and 13, and the like. As a result, the broadcast channel that can be received by the terrestrial digital television broadcast receiver 19 is switched, the volume is adjusted, and the display screens of the display devices 11 and 13 are respectively selected as the television screen or the navigation screen. .

  The audio output device 17 is for notifying the user of various information by voice. Thereby, various types of guidance such as route guidance can be executed both by display on the main display device 11 and voice output from the voice output device 17. Also, the audio output device 17 outputs the terrestrial digital television broadcast sound respectively received by the two terrestrial digital television broadcast receivers 19.

  The voice output device 17 is arranged on a ceiling or the like in the vehicle toward the windshield of the vehicle, and outputs a plurality of voices that are reflected on the windshield and directed separately to the driver seat side and the passenger seat side, respectively. It is desirable to have a super-directional acoustic reflection system composed of the above radiators. Thereby, the main display device 11 and the sub display device 13 can cause the driver and the passenger to view the contents of different broadcast channels.

  The terrestrial digital television broadcast receiver 19 is provided for each of the display devices 11 and 13, receives the terrestrial digital television broadcast wave broadcast from the transmitting station, decodes the received terrestrial digital television broadcast wave, and The obtained video signal and audio signal are output to the control unit 30. The video signal here refers to a signal that allows a plurality of still images (frame images) to be frame-fed (that is, a moving image is normally reproduced) at intervals of at least one second.

  The image sensor 21 tracks the movement of at least one of the driver's face and pupil, detects the direction of the line of sight, and specifies whether the driver is looking at the display surface for each of the display devices 11 and 13. This is a sensor having a solid-state imaging device such as a CCD or CMOS. Then, the image sensor 21 images the driver's face with the solid-state image sensor and outputs the image signal to the control unit 30. When tracking the driver's pupil, it is necessary to fix the distance between the driver's eyes and the image sensor 21, and thus the imaging screen of the solid-state imaging device may be fixed to the driver's eyes. Possible head mound types may be used.

  The control unit 30 is configured around a known microcomputer including a CPU, a ROM, a RAM, an I / O, a clock timer, a bus line connecting these components, and the like, and controls each component described above. The control unit 30 executes various processes according to programs read from the ROM, the HDD 27, and the like.

  For example, the navigation-related processing includes map display processing and route guidance processing. In the map display process, the current position of the vehicle is calculated as a set of coordinates and traveling directions based on various detection signals from the position detector 25, and a map and the like in the vicinity of the current position read from the HDD 27 are displayed by a still image frame feed video. It is processing to do. The route guidance process calculates the optimum route from the current position to the destination based on the map data stored in the HDD 27 and the destination specified by the instruction by the operation of the operation switch group 15; This is a process for performing travel guidance for the calculated route.

  In addition, when viewing of the terrestrial digital broadcast is selected, the control unit 30 outputs the video signal and the audio signal input from the terrestrial digital television broadcast receiver 19 to the display devices 11 and 13 and the audio output device 17, respectively. To do. At this time, the control unit 30 executes display processing described later.

  The external memory 23 is, for example, an electrically rewritable non-volatile semiconductor memory or the like. When a parameter indicating a vehicle state or an external environment is input, a load conversion capable of outputting a load level described later is provided. The table is stored.

[Display processing]
Here, the display process executed by the control unit 30 will be described in detail with reference to the flowchart shown in FIG. In the following, the process for the main display apparatus 11 will be described, but the process for the sub display apparatus 13 is basically the same, and thus detailed description thereof will be omitted. However, in the processing for the sub display device 13, when the display of the moving image on the sub display device 13 is prohibited, the display of the moving image on the main display device 11 is automatically prohibited.

  First, when this process is started, each parameter to be input to the load conversion table is acquired in S110. Specifically, the current position of the vehicle is calculated or a map near the current position is read in the same manner as the navigation-related processing. Furthermore, various information representing the vehicle speed, the steering angle, the brake operation state, and the like are input from the inter-vehicle control ECU 5 in addition to the set values by the cruise control switch, the target inter-vehicle setting switch, and the like.

  In subsequent S120, it is determined whether the vehicle speed is zero among the parameters acquired in S110, that is, whether or not the vehicle is stopped. If the vehicle speed is stopped, the load on the driver for driving the vehicle is increased. As a result, the process proceeds to S145, the normal reproduction video based on the video signal is displayed on the main display device 11, and the process returns to S110. On the other hand, when the vehicle speed is non-zero, that is, when the vehicle is traveling, the process proceeds to S130.

  In S130, the load conversion table is read from the external memory 23, and each parameter acquired in S110 is input to this load conversion table, so that the driver's load level for driving the vehicle is output, and the driving load representing this load level is displayed. Generate estimation information. Specifically, in the load conversion table, when the cruise control function is used or the target inter-vehicle distance is set (especially when the target inter-vehicle distance is large), the load level is assumed to be very small. Be treated. Also, when the vehicle speed or steering angle is small, when the brake operation is not performed, when the current location of the vehicle is a suburban area, or when the road shape of the running vehicle is a linear shape, the load level is low. Are treated as Conversely, if the vehicle speed or steering angle is large, the brake operation is performed, the current location of the vehicle is an urban area, or the road shape while the vehicle is running is a curved shape (curve shape), the load Treated as a high level. The load level may be adjusted according to the brightness around the vehicle based on a detection signal from an illuminance sensor (not shown), or the load level may be adjusted according to the weather based on the operation state of the wiper. .

  In subsequent S140, based on the imaging signal input from the image sensor 21, for example, it is determined whether or not the driver's face is facing the display surface of the main display device 11. Assuming that the driver's line of sight is facing the display surface, the timer is turned on, and the process proceeds to S150. On the other hand, if the determination is negative, it is determined that the driver's line of sight has deviated from the display surface, and the process proceeds to S145, where the normal reproduction video based on the video signal is displayed on the main display device 11, and the process returns to S110. .

  In S150, based on the driving load estimation information generated in S130, it is determined whether or not the load level is within a preset allowable level range. If the load level is within the allowable range, driving of the vehicle is determined. If the driver's load on the vehicle is small, the process proceeds to S155. If the load level exceeds the allowable range, the driver's load is large, and the process proceeds to S180.

  In S155, a setting interval to be described later is selected according to the load level. Specifically, a preset setting interval (for example, 2 to 10 seconds) is read such that the longer the load level, the longer the load level and the shorter the load level.

  In S160, based on the video signal input from the terrestrial digital television broadcast receiver 19, the frame image (still image) constituting this video signal is skipped at every set interval in S155 and corresponds to the skipped time. The moving image to be displayed is displayed intermittently, that is, the still image frame feed video is displayed on the main display device 11.

  In subsequent S <b> 170, whether or not the driver's line of sight continues to face the display surface beyond a preset time limit based on the elapsed time by the clock timer and the imaging signal input from the image sensor 21. If it is determined affirmatively here, it is determined that safety is more important than entertainment, and the process proceeds to S180. On the other hand, if a negative determination is made, it is determined that the display of the still image frame advance video does not affect the driving, the timer is turned off, and the process returns to S110.

  In S180, the display of the moving image (still image frame feed video, normal playback video) on the main display device 11 is stopped, and in subsequent S190, simple symbols, characters, graphics for directing the driver's line of sight toward the front of the vehicle Is displayed on the main display device 11, the timer is turned off, and the process returns to S <b> 110.

[Operation example]
In the vehicle-mounted moving image display device 3 configured in this way, as shown in FIG. 4, when the vehicle is stopped, there is no driving load, so that the normal playback video is displayed on both the display devices 11 and 13. Is done. In addition, when the vehicle is traveling, if the driver's line of sight is not facing any display surface, it is not necessary to affect the driving. Is displayed.

  On the other hand, if the vehicle is running and the driver's line of sight faces the display surface, it may affect the driving, so the state where the driver's line of sight faces the display surface continues for a certain period of time. Alternatively, when it is estimated that the driving load is large, at least the main display device 11 stops displaying the moving image. In this case, if the driver's line of sight does not face the display surface of the sub display device 13, the normal reproduction video is continuously displayed on the sub display device 13. In this case, if the driver's line of sight is directed to the display surface of the sub display device 13, the display of the moving image is stopped on both the display devices 11 and 13. Incidentally, the still image for alerting is displayed on the display devices 11 and 13 where the display of the moving image is stopped.

  Further, when the vehicle is traveling and the driver's line of sight deviates from the display surface within a certain time after the driver's line of sight faces the display surface of the main display device 11, the driving may not be affected. Therefore, if it is estimated that the driving load is small, the still image frame advance video is displayed on the main display device 11. In this case, if the driver's line of sight does not face the display surface of the sub display device 13, the normal reproduction video is continuously displayed on the sub display device 13. Further, when the driver's line of sight deviates from the display surface within a certain time after the driver's line of sight faces the display surface of the sub-display device 13, the still image frames are displayed on both display devices 11 and 13. The feed video will be displayed.

[effect]
As described above, in the in-vehicle video display device 3 of the present embodiment, the driver's load level for driving the vehicle is estimated based on the traveling state of the vehicle, and only when it is determined that the load level is low, Since the frame-by-frame feed video is displayed, it is possible to provide the driver with entertainment content such as a television set without disturbing safe driving.

  Further, in the in-vehicle video display device 3, if the driver's line of sight does not face the display surface of the sub display device 13, the normal playback video is displayed on the sub display device 13 regardless of the load level. As long as the power is not distracted, it is possible to provide entertainment for passengers in the passenger seat.

  Furthermore, in the in-vehicle moving image display device 3, if the driver's line of sight is directed to the display surface of the sub display device 13, not only the sub display device 13 but also the display devices 11 and 13 are displayed according to the load level. Since the control is performed, it is possible to prevent the driver's line of sight from moving from the sub display device 13 to the main display device 11, thereby further improving safety.

[Correspondence with Invention]
In the present embodiment, the display devices 11 and 13 correspond to display means, and among the display processing, S110 and 130 correspond to estimated information generation means, S120 and S150 to S190 correspond to display control means, and S140 and the image sensor 21 correspond to line-of-sight detection means. .

[Other Embodiments]
As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment, In the range which does not deviate from the summary of this invention, it is possible to implement in various aspects.

  For example, the in-vehicle moving image display device 3 of the above embodiment includes the two display devices 11 and 13 as long as one of the display devices 11 and 13 is included. Furthermore, by one display device such as a so-called dual view display device, You may provide what can display two types of images from which contents differ according to a viewing angle simultaneously. The dual-view display device uses a slit arranged on the display surface to separate the light irradiation directions corresponding to the two types of images so that individual images are displayed on the driver's seat side and the passenger seat side, respectively. To do.

  In this case, since the two display devices 11 and 13 are integrated into one, space can be saved, and it is not necessary to provide the image sensor 21 for each of the display devices 11 and 13. Can be reduced.

  In addition, in the configuration including the dual view display device, even when the driver's line of sight is facing the display surface, the normal playback image may be always displayed on the passenger seat side, in other words, the driver seat. The previous display process may be performed only for the portion displayed on the side. Thereby, the processing burden of the control part 30 can be reduced.

  Further, in the in-vehicle video display device 3 of the above embodiment, when the driving load is small, when the driver looks at the sub display device 13, the still image frame advance video is displayed on the sub display device 13. However, the present invention is not limited thereto, and for example, the display of moving images by the sub display device 13 may be prohibited (see FIG. 4). That is, since the sub display device 13 is located at a relatively distant position from the driver's seat, the sub display device 13 is intended to reduce the possibility of staring when the driver is difficult to see.

  Similarly, in the on-vehicle video display device 3 of the above embodiment, when the driving load is small, when the driver looks at the sub display device 13, the still image frame feed video is displayed on the main display device 11. However, the present invention is not limited to this, and the display of moving images by the main display device 11 may be prohibited (see FIG. 4).

  In the on-vehicle video display device 3 of the above embodiment, a moving image based on a video signal input from the terrestrial digital television broadcast receiver 19 has been described as an example. However, the present invention is not limited to a television, and may be a medium such as a DVD or a hard disk. The present invention can also be applied to recorded moving images.

  DESCRIPTION OF SYMBOLS 1 ... Vehicle control system, 3 ... Vehicle-mounted moving image display apparatus, 5 ... Inter-vehicle control ECU, 6 ... Front radar, 7 ... Engine ECU, 9 ... Brake ECU, 11 ... Main display device, 13 ... Sub display device, 15 ... Operation switch Group: 17 ... Audio output device, 19 ... Terrestrial digital television broadcast receiver, 21 ... Image sensor, 23 ... External memory, 25 ... Position detector, 30 ... Control unit, 31 ... GPS receiver, 33 ... Gyroscope, 35 ... Vehicle speed detector.

Claims (5)

At least a display surface is attached to a position visible from the driver's seat side in the vehicle, and display means for displaying a moving image on the display surface;
Estimation information generating means for generating driving load estimation information representing a driver's load level for driving the vehicle based on the driving state of the vehicle;
Only when the load level is within a preset allowable level range based on the driving load estimation information generated by the estimation information generation means during travel of the vehicle, the frame images constituting the moving image are Display control means for controlling the display means so as to be displayed on the driver's seat side by skip feed at regular set intervals;
A vehicle-mounted moving image display device comprising:   The in-vehicle moving image display device according to claim 1, wherein the display control unit sets the skip sending interval so as to become longer according to the load level. Gaze detection means for detecting the direction of the gaze of the driver,
When the driver's line of sight deviates from the display surface based on the detection result by the line-of-sight detection unit, the display control unit is configured to display the moving image of the display unit regardless of the content of the driving load estimation information. The in-vehicle moving image display device according to claim 1 or 2, wherein normal display is permitted. Gaze detection means for detecting the direction of the gaze of the driver,
Even if the load level is within the permissible level range, the display control means faces the driver's line of sight beyond a preset time limit based on a detection result by the line-of-sight detection means. 4. The in-vehicle moving image display device according to claim 1, wherein display of a moving image by the display unit is exceptionally prohibited in a case where the video image is displayed.   The display control means, when prohibiting the display of the moving image, causes the display means to display a still image for alerting for directing the driver's line of sight toward the front of the vehicle. The vehicle-mounted moving image display device according to claim 4.

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