JP2015000693A - Display device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a driver to perceive what kind of information screen is displayed, even when he/she does not gaze at an instrument panel.SOLUTION: A display device 1 for a vehicle comprises a multifunction meter 3 that displays a plurality of categories of information in a switching manner on an instrument panel P. A category display area 25, in which a color is changed depending on the category of the information displayed on the instrument panel P, is provided in an information display part 10 within the instrument panel P.

Description

  The present invention relates to a vehicle display device that switches and displays information of a plurality of categories on an instrument panel.

  Conventionally, a display device for a vehicle having various functions is mounted on the vehicle, and Patent Document 1 proposes a function for displaying a surrounding situation of the vehicle. In order to display many functions on the instrument panel in this way, a multi-function meter that integrates many functions is currently mounted on the vehicle.

JP 2011-240868 A

  However, in the conventional multi-function meter, the number of screens to be displayed increases as the functions increase, and the visual load increases until the driver selects a target screen, which causes distraction. It was. In particular, the driver cannot recognize what information screen is displayed unless he / she pays attention to the instrument panel when switching the display screen.

 Therefore, the present invention has been proposed in view of the above-described circumstances, and it is possible for a vehicle to recognize what information screen is displayed without the driver gazing at the instrument panel. An object is to provide a display device.

  In order to solve the above-described problems, the present invention is characterized in that a category display area whose color changes according to the category of information displayed on the instrument panel is provided in the instrument panel.

  According to the present invention, since the color of the category display area is changed according to the category of information displayed on the instrument panel, the driver can display any category of information without paying attention to the instrument panel. Can recognize.

FIG. 1 is a block diagram showing a configuration of a vehicle display device according to an embodiment of the present invention. FIG. 2 is a diagram showing an example of display by the vehicle display device according to the embodiment of the present invention. FIG. 3 is a flowchart showing a processing procedure of the lighting control processing of the category display area by the vehicle display device according to the embodiment of the present invention. FIG. 4 is a diagram for explaining a lighting control method for a category display area by the vehicle display device according to the embodiment of the present invention. FIG. 5 is a diagram for explaining the visual recognition ability of each driving speed.

  Hereinafter, an embodiment to which the present invention is applied will be described with reference to the drawings.

[Configuration of vehicle display device]
FIG. 1 is a block diagram showing a configuration of a vehicle display device according to the present embodiment. As shown in FIG. 1, the vehicle display device 1 according to the present embodiment includes a multi-function meter 3, a control unit 5, and a screen switching button 7.

  The vehicle display device 1 according to the present embodiment is a device for controlling the screen display of the multi-function meter 3 mounted on the vehicle, and any category without the driver gazing at the instrument panel P. It is possible to recognize whether the information is displayed.

  The multi-function meter 3 includes an information display unit 10 for switching and displaying information on a plurality of categories in addition to instruments such as a speedometer and a tachometer on the instrument panel P. As shown in FIG. 2A, the information display unit 10 includes a shift position display area 21 for displaying a shift position, a tag 23 prepared for each category, and a category display area 25 whose color changes according to the category. And an information display area 27 for displaying information. FIG. 2 shows an example of a display screen displayed on the information display unit 10, and FIG. 2A shows a display screen of an “audio” category displayed when the audio display tag 23a is selected. Is shown. At this time, the category display area 25 is displayed in a different color depending on the category. In FIG. 2A, the category display area 25 is displayed in red to indicate that the category is “audio”. FIG. 2B shows a display screen of the “Internet” category displayed when the Internet display tag 23b is selected, and the category display area 25 is displayed in blue representing the “Internet” category. ing. Further, FIG. 2C shows the display screen of the “setting operation” category displayed when the setting operation display tag 23c is selected, and the category display area 25 is green indicating the category of “setting operation”. Is displayed.

  Moreover, the category display area 25 is provided in the upper part of the instrument panel as shown in FIG. In FIG. 2, the category display area 25 is provided in the upper part of the instrument panel by forming along the tag 23 provided at the top of the information display section 10. Here, the visual recognition ability of the driver who is gazing forward becomes higher toward the upper part of the instrument panel. Therefore, by providing the category display area 25 at the upper part of the instrument panel, the driver can easily recognize the category of information displayed on the instrument panel. In FIG. 2, the category display area 25 has a bar shape along the tag 23, but may have other shapes. Further, a part or the whole of the background of the instrument panel may be set as a category display area to change the color.

  Next, the control unit 5 is connected to the vehicle speed sensor 31 and acquires the vehicle speed of the host vehicle detected by the vehicle speed sensor 31. The control unit 5 is connected to a light switch 33 such as a combination switch, and acquires information on whether or not the light of the host vehicle is on. However, when the host vehicle is an auto light, information on whether or not the light of the host vehicle is turned on is obtained from a illuminometer or a means for determining lighting of the light instead of the combination switch. And the control part 5 performs the lighting control process which changes the color and brightness | luminance of the category display area 25, in order to make a driver | operator recognize the category of the information currently displayed on the instrument panel based on the acquired information. Run. The control unit 5 includes a general-purpose electronic circuit including a microcomputer, a microprocessor, and a CPU, and peripheral devices. By executing a specific program, the lighting control process for the category display area 25 shown below is performed. Run.

  The screen switching button 7 is installed as a steering switch, for example, and the category of information displayed in the information display area 27 is switched by the driver operating the screen switching button 7 and selecting the tag 23 of the information display unit 10. It is done.

[Category display area lighting control processing procedure]
Next, the procedure of the lighting control process of the category display area 25 by the vehicle display device 1 according to the present embodiment will be described with reference to the flowchart of FIG.

  As shown in FIG. 3, in step S <b> 10, the control unit 5 determines whether the driver has operated the screen switching button 7 to switch the category of information displayed on the information display unit 10. And if it determines with having switched the category, the control part 5 will progress to step S20.

  Next, in step S <b> 20, the control unit 5 determines whether or not the light of the host vehicle is lit based on information from the light switch 33. If it is determined that the light is lit, the process proceeds to step S30, and the brightness of the category display area 25 is set to be reduced by, for example, about 30% from the setting value set for daytime, and step S40 is performed. Proceed to On the other hand, if it is determined that the light is not turned on, the brightness of the category display area 25 remains unchanged from the setting value set for daytime, and the process proceeds to step S40. The set value and the rate of reduction can be changed by the driver.

  Next, in step S40, the control part 5 acquires the speed of the own vehicle from the vehicle speed sensor 31, and when the speed of the own vehicle is 0 to 5 km / h, it determines that the vehicle is stopped and proceeds to step S50. When the speed of the host vehicle is 6 to 30 km / h, it is determined that the speed is low, and the process proceeds to step S60. When it is 31 to 60 km / h, the speed is determined to be medium, and the process proceeds to step S70. Determine and proceed to step S80.

  Here, the lighting control method of the category display area 25 will be described with reference to FIG. As shown in FIG. 4, the control unit 5 blinks and displays the category display area 25. Specifically, blinking is displayed for a predetermined total luminance change time after the category is switched, and during this period, the luminance increases from the predetermined setting value by the amount of luminance change, and then flashes so as to decrease to the setting value. . The luminance change amount indicating the luminance increase range is set to increase by 20% from the set value. And control part 5 changes blinking speed and total luminance change time according to speed, when it is judged in Step S40 as low speed-high speed. On the other hand, if it is determined in step S40 that the vehicle is stopped, the above-described blinking display of the category display area 25 is not performed.

  Hereinafter, each step of steps S50 to S80 will be described. First, when it is determined in step S40 that the vehicle is stopped, in step S50, the control unit 5 sets the total luminance change time as none. In other words, the category display area 25 is lit in a color corresponding to the category of information currently displayed on the instrument panel, and is set not to blink. Accordingly, the category display area 25 is set to be lit in red when the category is “audio”, blue when it is “Internet”, and green when it is “setting operation”. The luminance at this time is a predetermined set value.

  Next, when it is determined that the speed is low in step S40, in step S60, the control unit 5 sets the total luminance change time to 6 seconds and the blinking speed to once every 3 seconds.

  Similarly, if it is determined in step S40 that the speed is medium, in step S70, the control unit 5 sets the total luminance change time to 8 seconds and the blinking speed to once per second.

  When it is determined in step S40 that the speed is high, in step S80, the control unit 5 sets the total luminance change time to 10 seconds and the blinking speed to once in 0.5 seconds.

  In this way, the control unit 5 sets the total luminance change time so as to increase as the vehicle speed increases. In addition, the blinking speed is set to increase as the vehicle speed increases. This is because the driver's visual ability at the position of the instrument panel decreases as the speed of the vehicle increases, so the driver recognizes the category of information displayed even if the visual ability decreases. Has been done to be able to.

  Specifically, referring to FIG. 5, as shown in FIG. 5A, when driving at a low speed, the driver is gazing forward with an effective visual field (center visual field) 51, and at the position of the instrument panel P. The driver's visual recognition ability is the guidance visual field 53. The guidance visual field (peripheral visual field) 53 is a range in which the presence of the presented information can be determined, and it is possible to determine what is moving, such as blinking, but the shape and color are determined by the movement of the eyeball or head This is a possible range. Therefore, when driving at a low speed, the driver can recognize the color of the category display area 25 without flashing display, but can recognize it more reliably by flashing display.

  However, the driver's visual recognition ability at the position of the instrument panel P is an auxiliary visual field 55 as shown in FIG. The auxiliary visual field 55 is a range in which the reception of information is extremely low and cannot be determined unless there is a movement such as blinking. Therefore, the driver cannot recognize the category display area 25 unless the category display area 25 is blinked during medium to high speed driving.

  Therefore, the control unit 5 responds to the decrease in the driver's visual recognition ability at the position of the instrument panel as the vehicle speed increases, so that the category display area 25 is stimulated more strongly. The lighting method of the display area 25 is controlled. Thereby, even if a driver | operator's visual recognition capability falls, a driver | operator can be made to recognize the category of the information currently displayed on the instrument panel.

  Thus, when the lighting method of the category display area 25 is set in steps S50 to S80, in step S90, the control unit 5 lights the category display area 25 with the set lighting method, and the category display area according to the present embodiment. The lighting control process is terminated.

[Effect of the embodiment]
As described above in detail, in the vehicle display device 1 according to the present embodiment, the color of the category display region 25 is changed according to the category of information displayed on the instrument panel. Thus, the driver can recognize what category of information is displayed without paying attention to the instrument panel.

  Moreover, in the vehicle display device 1 according to the present embodiment, the category display region 25 is provided in the upper part of the instrument panel. Thereby, since the category display area 25 can be set at a position where the driver's visual recognition ability is high, the driver can easily recognize the information displayed on the instrument panel.

  Furthermore, in the vehicle display device 1 according to the present embodiment, the category display area 25 is blinked and displayed for a predetermined total luminance change time after the category is switched, and the vehicle speed increases during the total luminance change time. Depending on the length. As a result, even if the speed of the vehicle increases and the driver's visual ability decreases, the driver can recognize what category of information is displayed on the instrument panel.

  Further, according to the vehicle display device 1 according to the present embodiment, the blinking speed when the category display area 25 is blinked is increased as the vehicle speed increases. As a result, even if the speed of the vehicle increases and the driver's visual ability decreases, the driver can recognize what category of information is displayed on the instrument panel.

  The above-described embodiment is an example of the present invention. For this reason, the present invention is not limited to the above-described embodiment, and even if it is a form other than this embodiment, as long as it does not depart from the technical idea of the present invention, it depends on the design and the like. Of course, various modifications are possible.

DESCRIPTION OF SYMBOLS 1 Display apparatus for vehicles 3 Multifunctional meter 5 Control part 7 Screen switching button 10 Information display part 21 Shift position display area 23 Tag 23a Audio display tag 23b Internet display tag 23c Setting operation display tag 25 Category display area 27 Information display area 31 Vehicle speed Sensor 33 Light switch P Instrument panel

Claims (4)

A vehicle display device for switching and displaying information of a plurality of categories on an instrument panel,
A display device for a vehicle, wherein a category display area whose color changes in accordance with a category of information displayed on the instrument panel is provided in the instrument panel.   The vehicle display device according to claim 1, wherein the category display area is provided in an upper portion of the instrument panel.   The category display area blinks for a predetermined total luminance change time after the category of information displayed on the instrument panel is switched, and the total luminance change time corresponds to the vehicle speed increasing. The vehicle display device according to claim 1, wherein the vehicle display device is long.   The vehicle display device according to claim 3, wherein a blinking speed when the category display area is blinked is increased as the vehicle speed is increased.

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