JP5098596B2 - Vehicle display device - Google Patents

Description

  The present invention relates to a vehicle display device.

Conventionally, a technique capable of discriminating an operator in an image display device including a display capable of displaying different images on the driver's seat side and the passenger seat side has been proposed (see, for example, Patent Document 1). ). According to the technique described in Patent Document 1, the switches for the respective functions are arranged so that the ranges of coordinates indicating the switches are different at each viewing angle. Specifically, as shown in FIG. 4, the video B switches 22a, 22c, and 22e displayed on the video B that can be viewed from the passenger seat side and the video A that can be viewed from the driver seat side are displayed. The display positions of the video A switches 22b, 22d, and 22f are shifted from each other.
JP 2007-1342 A

  However, in the technique described in Patent Document 1, if the operator knows in advance the positions of the video B switches 22a, 22c, and 22e displayed on the video B that can be viewed from the passenger seat side, Even an operator on the driver's seat side can operate, so the operator cannot be determined accurately. Therefore, the operation from the passenger seat side can be performed while the vehicle is running, and the operation from the driver seat side cannot be disabled.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a vehicle display device that can be operated from the passenger seat side while the vehicle is running and cannot be operated from the driver seat side. To do.

The invention according to claim 1 is a display screen capable of displaying different images depending on the viewing angle from the driver and the viewing angle from the passenger,
A driver's operation icon for the driver to operate is displayed on the image viewed from the driver, and a passenger's operation icon for the passenger to operate on the image viewed from the passenger In the vehicle display device comprising: a display control means for displaying the operation icon for the driver and the operation icon for the passenger so as to be arranged at different positions on the display screen,
When shifting the position of the driver's operation icon and the passenger's operation icon, the position of the operation icon for the passenger is determined so that the position on the display screen is irregular. Means ,
An operation means for operating the operation icon is provided.
The position determining means determines the position so that the position on the display screen becomes irregular every time the operation means operates,
The display control means displays the operation icon for the passenger at the position determined by the position determination means , and displays the video viewed from the driver by operating the operation icon for the passenger by the operation means. In the case of changing, the video viewed from the driver is changed after the operation to all the operation icons for the passengers for changing the video viewed from the driver is completed .
The invention according to claim 2 is a display screen capable of displaying different images depending on the viewing angle from the driver and the viewing angle from the passenger,
A driver's operation icon for the driver to operate is displayed on the image viewed from the driver, and a passenger's operation icon for the passenger to operate on the image viewed from the passenger In the vehicle display device comprising: a display control means for displaying the operation icon for the driver and the operation icon for the passenger so as to be arranged at different positions on the display screen,
When shifting the position of the driver's operation icon and the passenger's operation icon, the position of the operation icon for the passenger is determined so that the position on the display screen is irregular. Means,
Operation means for operating the operation icon;
Stop determination means for determining whether the vehicle is stopped or not, and
When it is determined that the stop determination unit is not stopped, an operation invalidation processing unit that performs processing for invalidating the operation of the operation icon for the driver by the operation unit,
The display control means displays the operation icon for the passenger at the position determined by the position determination means, and the operation to the operation icon for the driver displayed in the video viewed from the driver is completed. If the operation of the driver's operation icon is invalidated by the operation invalidation processing means by starting the vehicle before the vehicle starts, the image seen from the passenger will be necessary for the passenger to complete the operation. The operation icon is displayed.

As described above, according to the present invention, when the positions of the driver operation icon and the passenger operation icon are shifted, the positions of the passenger operation icons are irregularly arranged on the display screen. The display control means displays the operation icon for the passenger so that the operation icon for the passenger is arranged at the determined position. As a result, the driver cannot grasp the position of the operation icon for the passenger in advance, and cannot perform an operation from the driver's seat side. On the other hand, the passenger can recognize and operate the operation icons for the passengers that are irregularly arranged.
In the first aspect of the invention, the display control means can display the position of the passenger operation icons irregularly for each operation by the operation means. The operation from can be made even more difficult.
According to the first aspect of the present invention, since the image viewed from the driver is not changed as needed every time the passenger operates the operation icon for the passenger, the driver can display the display screen on which the passenger is operating. You will never be distracted.
On the other hand, in the invention of claim 2, if the vehicle starts before the operation to the operation icon for the driver is completed, the driver's operation becomes invalid, but the passenger's operation is not invalidated (it remains valid). Therefore, the target operation can be completed by the passenger's operation.

According to the invention of claim 3 , the position determining means determines the position of the operation icons for passengers to be finally operated on the display screen so that the positions on the display screen are irregular. The display control means displays the operation icon for the passenger to be finally operated on the display screen at the position determined by the position determination means.

  This is because the operation cannot be completed if at least the positions of the operation icons for the passengers to be finally operated are displayed so as to be irregularly arranged.

In the invention of claim 4, wherein position determining means, so that the position on the display screen each time the operation by the operation means becomes irregular, and determining its position.

  Accordingly, the display control unit can display the passenger icons so that the positions of the passenger operation icons are irregularly arranged for each operation by the operation unit. It can be made impossible.

According to the fifth aspect of the present invention, when the video viewed from the driver is changed by operating the operation icon for the passenger by operating the operating means, the display control means is used for changing the video viewed from the driver. The video viewed from the driver is changed after the operation on all the operation icons for the driver is completed.

  As a result, every time the passenger performs an operation on the operation icon for the passenger, the video viewed from the driver is not changed at any time, so the driver may be distracted by the display screen that the passenger is operating. Disappear.

  Hereinafter, embodiments of the present invention will be described with reference to examples shown in the drawings. FIG. 1 is a block diagram showing the overall configuration when the vehicle display device of the present invention is applied to a vehicle navigation device. A vehicle navigation device (hereinafter referred to as a navigation device) 100 mainly includes a display device 10 and a control device 20.

  The display device 10 is used by being installed near an instrument panel in a vehicle room, and includes a display unit 11 and an operation unit 12. The display unit 11 is a two-screen display (display screen) on which different images are displayed in full screen from two different directions. The display unit 11 is composed of a known color liquid crystal display, and includes a dot matrix LCD (Liquid Crystal Display) and a driver circuit for performing LCD display control. The driver circuit uses, for example, an active matrix driving method in which a transistor is attached to each pixel so that the target pixel can be reliably turned on and off, and is based on a display command and display screen data sent from the control device 20. To display. An organic EL (ElectroLuminescence) display or a plasma display may be used as the display.

  Since the configuration of the display unit 11 is disclosed in Japanese Patent Application Laid-Open No. 2007-1342 (paragraph numbers 0037-0038, FIGS. 7 and 8), detailed description thereof is omitted. By disposing the display unit 11 toward the rear of the vehicle, it is possible to display different images depending on the viewing angle from the driver's seat (driver) and the viewing angle from the passenger seat (passenger). The driver can see the screen on the driver side, and the passenger sees the screen on the passenger side that can be seen from the passenger seat. The video displayed on the display unit 11 may be either a still image or a moving image. In addition, the same image may be displayed on the driver side screen and the passenger side screen, or different images may be displayed.

  As the operation unit 12, for example, a touch panel (or a mechanical switch) integrated with the display unit 11 is used. The touch panel has an electric circuit wired in the X-axis direction and the Y-axis direction through a gap called a spacer on a glass substrate and a transparent film on the display unit 11, and is pushed when a driver or a passenger touches the film. Since the voltage value changes due to short-circuiting of the wiring of the part, a so-called resistive film method is widely used in which this is detected as a two-dimensional coordinate value (X, Y). In addition, an infrared sensor that is finely arranged vertically and horizontally, a panel portion that converts contact of a finger or the like detected by the infrared sensor into an electrical signal, a signal processing circuit for sending the electrical signal to an external device, and a controller that controls these For example, when the infrared ray is cut off with a finger or a touch pen, a method in which the cut off position is detected as a two-dimensional coordinate value (X, Y) may be used. Alternatively, a so-called capacitance method may be used in which a substance that receives an electrical signal is applied to a glass surface of a transparent conductive substrate, and a change in capacitance is detected by a sensor as an electrical signal when a finger is brought close to the glass surface. Good.

  The operation unit 12 may use a pointing device such as a mouse or a cursor in addition to the touch panel. In addition, various instructions can be input using a microphone and a voice recognition unit (not shown). In this method, voice is input from a microphone connected to the voice recognition unit, the voice signal is voice-recognized by a known voice recognition technique, and converted into an operation command corresponding to the result. The speech recognition unit discriminates speech by an amplifier that amplifies the speech signal input from the microphone to an appropriate level, and A / D-converts the amplified speech signal, and then by a known speech recognition algorithm such as a hidden Markov model. A digital signal processor (DSP), a memory in which reference data for identifying the voice is stored, etc., and the DSP converts the voice signal into numerical information corresponding to the voice. Then, it is sent to the control device 20. By these, it is possible to input various instructions.

  The control device 20 is configured as a normal computer, and includes a well-known CPU 21, a memory 22 such as a ROM or a RAM, an I / O (not shown) as an input / output circuit, a traveling state detection unit 23, and a vehicle position detection unit. 24, a data storage unit 25, and a bus line (not shown) for connecting these components. The memory 22 stores a program to be executed by the CPU 21, and the CPU 21 performs arithmetic processing according to this program.

  The traveling state detection unit 23 receives signals from various vehicles such as a vehicle speed pulse signal, a shift position signal, and a brake ON / OFF signal, and detects the traveling state (running or stopped) of the vehicle. The own vehicle position detection unit 24 includes a known geomagnetic sensor, gyroscope, distance sensor, and a GPS receiver for GPS that detects the position of the vehicle based on radio waves from a satellite. Since these sensors have errors of different properties, they are configured to be used while being complemented by a plurality of sensors. Depending on the accuracy, a part of the sensors described above may be used, and a steering rotation sensor, a wheel sensor of each rolling wheel, that is, a vehicle speed sensor, or the like may be used.

  The data storage unit 25 stores so-called map matching data for improving the accuracy of position detection, and map data including road data representing road connections. The map data stores predetermined map video information for display and road network information including link information and node information. The link information is predetermined section information constituting each road, and includes position coordinates, distance, required time, road width, number of lanes, speed limit, and the like. The node information is information that defines an intersection (branch road) and the like, and includes position coordinates, the number of right / left turn lanes, a connection destination road link, and the like. In addition, data indicating whether or not traffic is permitted is set in the link connection information.

  By having such a configuration, when the program is started by the CPU 21 of the control device 20, the navigation device 100 can be operated from the menu screen displayed on the display unit 11 by the driver or the passenger by an input operation on the touch panel. When the operation icon corresponding to the route guidance processing for displaying the destination route on the display unit 11 is selected, the following processing is performed.

  In other words, when a driver or a passenger selects a point from a given point on the map, or from a facility search, address search, registration point, etc., and sets it as a destination, the vehicle's data will be based on the satellite data obtained from the GPS receiver. A current position is obtained, and a process for obtaining an optimum guide route from the current position to the destination is performed. Then, the guidance route is superimposed on the road map of the display unit 11 and displayed when the vehicle reaches the guidance implementation point, or a guidance message is displayed or output from a speaker (not shown). As a method for automatically setting an optimum guide route, a method such as the Dijkstra method is known.

  Next, details of operation icons displayed on the display unit 11 will be described with reference to FIGS. As shown in FIG. 2, operation icons (“return”, “complete”, etc.) for the driver and passengers to operate are displayed on the display unit 11, and by touching on the operation icons, The position is detected, and the function corresponding to the selected operation icon is executed on the assumption that the driver or passenger has selected the operation icon displayed at the detected position.

  Here, a driver operation icon for operation by the driver displayed on the driver side screen, a passenger operation icon for operation by the passenger displayed on the passenger side screen, and Is arranged to shift the position on the display unit 11 with respect to operation icons that execute the same function (Japanese Patent Laid-Open No. 2007-1342, FIG. 4). When shifting the position of the operation icon for the passenger, as shown in FIG. 4 of the above publication, if the position of shifting the operation icon for the passenger is fixed, the driver can grasp the position in advance. For example, even a driver who is an operator on the driver's seat side can perform the operation. Therefore, the operation from the passenger seat side can be performed while the vehicle is traveling, and the operation from the driver seat side cannot be disabled.

  Therefore, in the present embodiment, when the positions of the driver operation icons and the passenger operation icons are shifted, the positions of the passenger operation icons on the display unit 11 are irregular. Then, the position is determined (position determining means) and displayed so that an operation icon for the passenger is arranged at the determined position (display control means). As a result, the driver cannot grasp the position of the operation icon for the passenger in advance, and cannot perform an operation from the driver's seat side. On the other hand, the passenger can recognize and operate the operation icons for the passengers that are irregularly arranged.

  As described above, when the position of the operation icon for the passenger displayed on the display unit 11 is irregular, the usability is deteriorated for the passenger, so that it can be understood to which position it is shifted (has moved). It is preferable to do. For example, as shown in FIG. 3, the movement of the passenger operation icon may be displayed on the display unit 11 so that the change location can be seen from the default position with an arrow.

  Further, for example, as shown in FIG. 4, the display unit 11 may display the movement locus of the passenger operation icons so that the movement locus can be seen. Regarding the display of the movement locus in FIG. 4, the size of the passenger operation icon may be changed from small to large, or may be changed from light to dark.

  Further, as shown in FIG. 5, in the display unit 11, a movable displayable range GD that enables a display effect of moving a passenger's operation icon and a display effect of moving the passenger's operation icon are prohibited. The movement display prohibited range NG may be set in advance, and may be displayed so as to be irregularly arranged in the movement display possible range GD. As a result, the passenger operation icons are not arranged near the center of the display unit 11 and are irregularly arranged in the movable displayable range GD, so that the content displayed at the center of the display unit 11 Can be prevented from being difficult to confirm.

  The operation of the navigation device 100 will be described with reference to the flowchart shown in FIG. In the following description, a case where destination setting is executed will be described as an example. First, when the navigation apparatus 100 is activated, in step S10, menu screens of menus including destination setting are displayed on both the driver side screen and the passenger side screen. Also on this menu screen, the positions of the driver operation icons displayed only on the driver side screen and the passenger operation icons displayed only on the passenger side screen are displayed in a shifted manner. .

  In step S20, it is determined whether there has been a touch operation (input operation) on the display unit 11 (whether it has been detected). If an affirmative determination is made in step S20, the process proceeds to step S30. If a negative determination is made, the standby state is maintained until a touch operation is performed. In step S30, it is determined whether or not the operation is from the passenger seat side. If an affirmative determination is made in step S30, the process proceeds to step S40. If a negative determination is made (in the case of an operation from the driver's seat side), the process proceeds to step S100. In the determination process in step S30, the driver operation icon and the passenger operation icon are displayed on the menu screen so that the positions of the operation icon and the passenger operation icon are shifted from each other.

  In step S40, only the passenger side screen is updated from the menu screen to the destination setting screen, and the driver side screen is not updated from the menu screen to the destination setting screen, and the menu screen is continuously displayed. The driver's seat screen is updated to the destination setting result screen in step S90 when it is determined in step S80, which will be described later, that all the operation icons for setting the destination have been operated. To do.

  As described above, when the driver's seat screen is changed by operating the passenger's operation icon, the operations for all the passenger's operation icons for changing the driver's seat screen are completed. By changing later, every time the passenger performs an operation on the operation icon for the passenger, the image on the driver's seat side is not changed at any time, so the driver cares about the display unit 11 that the passenger is operating. It will not be taken.

  In step S50, the position of the passenger operation icon on the destination setting screen displayed on the passenger seat screen is randomly determined. Thereby, when the position of the operation icon for the driver and the operation icon for the passenger is not misaligned, the position of the operation icon for the passenger is irregular in the position on the display unit 11. Its position is determined. In this way, the operation icon for the passenger can be surely operated only by the passenger.

  In step S60, the display effect of shifting (moving) the operation icons for the passengers (for example, whether to display the movement with an arrow as shown in FIG. 3 or the movement as a locus as shown in FIG. 4). Etc.). In step S70, a drawing process for displaying the operation icons for the passengers and the display effect of the movement on the passenger side screen is performed. In step S80, it is determined whether or not the operation on all operation icons for destination setting has been completed. If an affirmative determination is made in step S80, the process proceeds to step S90. If a negative determination is made, the process returns to step S20, and the above-described process is repeatedly executed. In step S90, since the operation of all the operation icons for setting the destination has been completed, the driver's seat screen is updated from the menu screen to the destination setting result screen.

  By repeating Step S20 to Step S80, each time the passenger operation icon is operated, the position of the passenger operation icon on the display unit 11 is irregularly arranged. Further, the operation from the driver's seat side can be further prevented.

  In step S100, it is determined whether or not the vehicle is stopped. If it is determined as affirmative in step S100 (when the vehicle is stopped), the process proceeds to step S110. If it is determined as negative (ie, the vehicle is not stopped, that is, is traveling), the process proceeds to step S130. To proceed.

  In step S110, it is assumed that the operation of the driver operation icon by the driver is valid (operation while the vehicle is stopped). In step S120, the operation screen corresponding to the operation on the operation icon is displayed as the driver side screen. Is displayed. The position of the operation icon for the driver displayed (drawn) on the operation screen is set to an initial value (default value), thereby fixing the position of the operation icon for the driver.

  In step S130, assuming that the operation of the driver operation icon by the driver is invalid (operation while the vehicle is traveling), processing for invalidating the operation is performed (operation invalidation processing means). By this processing, the operation screen corresponding to the operation icon is not displayed, and the screen before the operation is maintained.

  When the driver is operating the driver's operation icon for setting the destination while the vehicle is stopped, the vehicle is started before the destination setting operation is completed. If the subsequent operation to the driver operation icon is invalidated, the destination setting operation must be continued after waiting for the next vehicle stop.

  Therefore, in such a case, in step S40, an operation icon for the passenger required for completing the destination setting operation is displayed on the passenger's screen, and the processing after step S50 is executed. It is good to let them. As a result, if the vehicle starts to move before the operation to the driver operation icon is completed, the driver's operation to the driver operation icon becomes invalid, but the passenger has changed the operation icon for the passenger to the operation icon for the passenger. Since the operation does not become invalid (it remains valid), the target operation can be completed by the passenger's operation.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

  For example, like the operation icons such as “return” and “completion” shown in FIGS. 2 to 4, the positions of the operation icons for passengers to be finally operated on the screen are irregular. It may be made to become. This is because the operation cannot be completed or the previous screen cannot be returned if at least the positions of the operation icons for the passengers to be finally operated are displayed so as to be irregularly arranged.

  Further, for example, in this embodiment, every time the operation icon for the passenger is operated, the position of the operation icon for the passenger on the display unit 11 is irregularly arranged. You may make it arrange | position so that it may become irregular whenever a screen is updated.

1 is a block diagram showing an overall configuration of a navigation device 100. FIG. It is the figure which showed the example of a display of the operation icon at the time of normal. It is a figure of the example which showed the movement of the operation icon with the arrow. It is a figure of the example which showed the movement of the operation icon by the locus. FIG. 6 is a diagram showing a movable display possible range GD that enables a display effect of moving an operation icon and a movement display prohibited range NG that prohibits a display effect of moving the operation icon in the display unit 11. 4 is a flowchart for explaining the operation of the navigation device 100.

Explanation of symbols

10: display device, 11: display unit, 12: operation unit, 20: control device, 21: CPU, 22: memory, 23: travel state detection unit, 24: own vehicle position detection unit, 25: data storage unit, 100 : Navigation device

Claims (5)

A display screen capable of displaying different images depending on the viewing angle from the driver and the viewing angle from the passenger,
A driver's operation icon for the driver to operate is displayed on the image viewed from the driver, and a passenger's operation icon for the passenger to operate on the image viewed from the passenger In the vehicle display device, comprising: display control means for displaying the operation icon for the driver and the operation icon for the passenger so as to be arranged at different positions on the display screen,
When shifting the position of the operation icon for the driver and the operation icon for the passenger, the position of the operation icon for the passenger is set so that the position on the display screen is irregular. Position determining means for determining ;
An operation means for operating the operation icon ;
The position determination means determines the position so that the position on the display screen is irregular each time the operation means operates.
The display control means displays the operation icon for the passenger at the position determined by the position determination means , and operates the operation icon for the passenger by operating the operation icon for the passenger. When changing the video viewed from the driver, the video viewed from the driver is changed after the operation of all the operation icons for the passengers for changing the video viewed from the driver is completed. Vehicle display device. A display screen capable of displaying different images depending on the viewing angle from the driver and the viewing angle from the passenger,
A driver's operation icon for the driver to operate is displayed on the image viewed from the driver, and a passenger's operation icon for the passenger to operate on the image viewed from the passenger In the vehicle display device, comprising: display control means for displaying the operation icon for the driver and the operation icon for the passenger so as to be arranged at different positions on the display screen,
When shifting the position of the operation icon for the driver and the operation icon for the passenger, the position of the operation icon for the passenger is set so that the position on the display screen is irregular. Position determining means for determining ;
An operation means for operating the operation icon;
Stop determination means for determining whether the vehicle is stopped or not, and
When it is determined that the stop determination unit is not stopped, an operation invalidation processing unit that performs a process for invalidating an operation on the operation icon for the driver by the operation unit ,
The display control means displays the operation icon for the passenger at the position determined by the position determination means , and displays the operation icon for the driver displayed in the image viewed from the driver. If the operation of the driver's operation icon is invalidated by the operation invalidation processing means by starting the vehicle before the operation of the vehicle is completed, the operation is completed in the image seen from the passenger A vehicle display device that displays an operation icon for a passenger required to perform the operation . The position determining means determines the position of the operation icons for passengers to be finally operated on the display screen so that the positions on the display screen are irregular,
Wherein the display control unit, the determined position of the position-determining means, the display screen eventually operation icon for passenger to operate, characterized in that the display so as to be arranged according to claim 1 or 2 in Vehicle display device. Before Symbol position determining means, said each be operated by the operating means so that the position on the display screen becomes irregular, the display device for a vehicle according to claim 2, wherein determining the position. The display control means, when changing the video viewed from the driver by operating the operation icon for the passenger by the operating means, all passengers for changing the video viewed from the driver The vehicle display device according to claim 4 , wherein an image viewed from the driver is changed after the operation to the operation icon is completed.

Images