WO2016170722A1 - Display device and display control method - Google Patents

Display device and display control method Download PDF

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Publication number
WO2016170722A1
WO2016170722A1 PCT/JP2016/001267 JP2016001267W WO2016170722A1 WO 2016170722 A1 WO2016170722 A1 WO 2016170722A1 JP 2016001267 W JP2016001267 W JP 2016001267W WO 2016170722 A1 WO2016170722 A1 WO 2016170722A1
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WO
WIPO (PCT)
Prior art keywords
display
information
vehicle
display device
display panel
Prior art date
Application number
PCT/JP2016/001267
Other languages
French (fr)
Japanese (ja)
Inventor
春樹 葛岡
Original Assignee
株式会社Ｊｖｃケンウッド
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2015088528A external-priority patent/JP2016206029A/en
Priority claimed from JP2015088529A external-priority patent/JP2016203820A/en
Application filed by 株式会社Ｊｖｃケンウッド filed Critical 株式会社Ｊｖｃケンウッド
Publication of WO2016170722A1 publication Critical patent/WO2016170722A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D7/00—Indicating measured values
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0481—Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators

Definitions

  • the present invention relates to a display device and a display control method, and more particularly to a display device and a display control method for controlling a display mode when the accuracy of visual recognition of displayed information is lowered.
  • Patent Document 1 discloses a vehicle capable of displaying a three-dimensional representation of an instrument displayed on a display panel by irradiating virtual light from a virtual light source to form reflected light or shadow on a frame portion of the instrument.
  • a display device is disclosed.
  • the virtual stereoscopic display is implemented not only in the vehicle display device but also in various devices such as a game machine.
  • the operation information (speed meter, etc.) used for the operation of the vehicle is displayed as a virtual three-dimensional display.
  • the three-dimensional effect of the meter can be expressed, or an excellent display of aesthetic expression can be achieved (see Patent Document 1).
  • an object of the present invention is to provide a display device and a display control method capable of accurately transmitting information to a user.
  • the display device includes a determination unit that determines whether or not the accuracy of visual recognition of information displayed on the display panel is deteriorated, and the information displayed on the display panel by the determination unit.
  • a display control unit that controls the display form displayed on the display panel to be a display that suppresses virtual depth expression when it is determined that the accuracy of visual recognition of the image is reduced. .
  • the display control method is a display control method executed by a display device, and determines whether or not the accuracy of visual recognition of information displayed on the display panel is reduced, and the display panel When it is determined that the accuracy of visual recognition of the information displayed on the display is deteriorated, the display form displayed on the display panel is controlled so as to be a display in which virtual depth expression is suppressed.
  • FIG. 1 is a block diagram illustrating an example of a vehicle display device according to a first embodiment
  • FIG. 3 is a diagram illustrating a display example of a display panel included in the vehicle display device according to the first embodiment
  • FIG. 3 is a diagram showing a display example of a display object according to the first exemplary embodiment.
  • 3 is a flowchart for explaining an operation of the vehicle display device according to the first exemplary embodiment
  • FIG. 6 is a diagram for explaining the operation of the vehicle display device according to the first embodiment
  • FIG. 5 is a diagram for explaining an operation of the vehicle display device according to the first exemplary embodiment
  • FIG. 5 is a diagram for explaining an operation of the vehicle display device according to the first exemplary embodiment
  • FIG. 5 is a diagram for explaining an operation of the vehicle display device according to the first exemplary embodiment
  • FIG. 5 is a diagram for explaining an operation of the vehicle display device according to the first exemplary embodiment
  • FIG. 5 is a diagram for explaining an operation of the vehicle display device according to the first exemplary
  • FIG. 5 is a diagram for explaining an operation of the vehicle display device according to the first exemplary embodiment
  • FIG. 5 is a diagram for explaining an operation of the vehicle display device according to the first exemplary embodiment
  • 6 is a flowchart for explaining an operation of the vehicle display device according to the second exemplary embodiment
  • 10 is a flowchart for explaining an operation of the vehicle display device according to the third exemplary embodiment
  • FIG. 6 is a block diagram illustrating an example of a display device according to a fourth embodiment.
  • 10 is a flowchart for explaining the operation of the display device according to the fourth exemplary embodiment
  • 10 is a flowchart for explaining the operation of the display device according to the fifth exemplary embodiment
  • FIG. 10 is a diagram for explaining the operation of the display device according to the fifth exemplary embodiment;
  • FIG. 10 is a diagram for explaining the operation of the display device according to the fifth exemplary embodiment;
  • FIG. 10 is a diagram for explaining the operation of the display device according to the fifth exemplary embodiment
  • FIG. 10 is a diagram for explaining the operation of the display device according to the fifth exemplary embodiment;
  • FIG. 10 is a diagram for explaining the operation of the display device according to the fifth exemplary embodiment;
  • FIG. 10 is a diagram for explaining the operation of the display device according to the fifth exemplary embodiment;
  • FIG. 10 is a diagram for explaining the operation of the display device according to the fifth exemplary embodiment;
  • FIG. 10 is a block diagram illustrating an example of a line-of-sight movement detection device used in a display device according to a sixth embodiment;
  • 14 is a flowchart for explaining the operation of the display device according to the sixth exemplary embodiment; It is a figure which shows the sum total of the amount of visual line movements for every unit time.
  • the display device includes at least a determination unit and a display control unit.
  • the determination unit determines whether or not a situation in which the accuracy of visual recognition of information displayed on the display panel is deteriorated.
  • the display control unit determines that the display form displayed on the display panel is a virtual depth expression when the determination unit determines that the accuracy of visual recognition of the information displayed on the display panel is reduced. Control is performed so that the display is suppressed.
  • the “situation in which the accuracy of visual recognition of information displayed on the display panel is reduced” means a situation in which it is difficult for the user to accurately visually recognize the information displayed on the display panel. ing.
  • the display device 1 includes an information acquisition unit (first information acquisition unit) 11, and the information acquisition unit 11 acquires vehicle travel information. .
  • the determination unit 12 is configured to check the information displayed on the display panel 15 when the vehicle driver is in a travel state in which the viewing time of the display panel is shortened. Judging that the accuracy is reduced.
  • the display device 101 includes an information acquisition unit (second information acquisition unit) 111.
  • the information acquisition unit 111 indicates the user's fatigue status. Fatigue judgment information for judgment is acquired. And when the judgment part 112 judges that the user is tired based on the fatigue judgment information acquired by the information acquisition part 111, in the situation where the appropriateness of visual recognition of the information displayed on the display panel 115 falls. Judging that there is.
  • FIG. 1 is a block diagram illustrating an example of a vehicle display device according to the first embodiment.
  • the vehicle display device 1 according to the present embodiment includes an information acquisition unit 11, a determination unit 12, a display control unit 13, and a display panel 15.
  • the information acquisition part 11, the judgment part 12, and the display control part 13 comprise the control part 10 which controls the display apparatus 1 for vehicles and the display panel 15, and the control part 10 is CPU (Central Processing Unit).
  • a vehicle display device 1 according to the present embodiment is a display device that displays at least information necessary for vehicle operation, such as a vehicle speed, an engine speed, and a shift position, and is generally an instrument panel or cluster. It is called a panel.
  • the information acquisition unit 11 acquires operation information 21 and traveling information 22.
  • the operation information 21 is information necessary for vehicle operation.
  • the operation information 21 may include auxiliary information in addition to information necessary for vehicle operation.
  • the auxiliary information includes, for example, climate information, date / time information, travel distance information (trip meter, odometer), navigation information, and the like.
  • the operation information 21 shown above is an example, and the operation information 21 may include information other than the above.
  • the determination unit 12 determines, based on the travel information acquired by the information acquisition unit 11, whether or not it is a travel state in which the viewing time of the display panel by the vehicle driver as the user is shortened. For example, the determination unit 12 travels when the viewing time of the display panel by the driver of the vehicle is shortened when the vehicle travel speed information acquired by the information acquisition unit 11 indicates a travel speed faster than a predetermined travel speed. Judged to be in a state. “A driving state in which the display time of the display panel by the driver of the vehicle is shortened” means, for example, a driving state where the driving speed is high, and a change in the situation outside the vehicle is steep and there is a time margin for visually recognizing the instrument panel. It is a state that decreases.
  • the display control unit 13 controls display on the display panel 15. Specifically, the display control unit 13 displays various parameters as the operation information 21 acquired by the information acquisition unit 11 on the display panel 15 based on a preset display form.
  • the display panel 15 displays information including at least operation information 21 used for vehicle operation.
  • a liquid crystal panel or an organic EL (Electroluminescence) panel can be used.
  • FIG. 2 is a diagram illustrating a display example of the display panel 15.
  • the display panel 15 includes vehicle speed information 30, engine speed information 31, shift position information 32, oil temperature information 33, remaining fuel information 34, cooling water temperature information 35, Display objects such as climate information 36 and date / time information 37 are displayed.
  • the speed information 30, the rotation speed information 31, and the shift position information 32 are displayed in a display form with a virtual depth expression so that a virtual stereoscopic effect can be obtained. Show.
  • the user can arbitrarily determine information for displaying a stereoscopic effect on the display panel 15.
  • a virtual depth expression for expressing the stereoscopic effect of the display object is illustrated as a depth amount D.
  • the display control unit 13 displays a virtually three-dimensional display on the display panel 15 by expressing shadows, reflected light, and the like from a virtual light source on a display object displayed in two dimensions.
  • the method for expressing the virtual depth expression is not particularly limited, and any method can be used. The same applies to FIGS. 6A to 6D described later.
  • FIG. 3 shows a display example of the speed information 30 and the rotation speed information 31 as an example of the display object displayed on the display panel 15.
  • FIG. 3 shows an example in which a shadow 312 generated by light from the virtual light source C is displayed on the outer peripheral frame 311 constituting the rotation speed information 31 when it is assumed that the outer peripheral frame 311 is a solid with a depth amount D. is there.
  • the addition of the shadow is not limited to the outer peripheral frame 311 constituting the rotation speed information 31, and the shadow may be added to other constituent elements such as parameter display and the numerical value indicating the speed information 30.
  • the depth amount of the virtual depth expression can express the expansion and suppression of the depth expression by the width and contrast of the shadow.
  • the shadow is displayed with a large width.
  • the contrast between the darkest part and the brightest part of the shadow may be displayed large.
  • the shadow is displayed with a narrow width.
  • the contrast between the darkest part and the brightest part of the shadow may be displayed small.
  • the width of the shadow in the case of such a display form corresponds to the depth amounts D1 to D4 shown in FIG. 2 and FIGS. 6A to 6D.
  • the display control unit 13 displays the display panel 15.
  • the display on the display panel 15 is controlled such that the display form is a display in which the virtual depth expression is suppressed.
  • FIG. 4 is a flowchart for explaining the operation of the vehicle display device 1 according to the present embodiment.
  • the premise of the operation described in FIG. 4 is a state in which the vehicle on which the vehicle display device 1 is mounted is operating, and the display control unit 13 displays at least the operation information 21 on the display panel 15.
  • the information acquisition unit 11 acquires travel information 22 that is information relating to the current travel state of the vehicle (step S1). Specifically, the information acquisition unit 11 continues to acquire information indicating the traveling speed of the vehicle as the traveling information 22 at arbitrary time intervals that can correspond to changes in the traveling speed.
  • the determination unit 12 determines whether the vehicle speed acquired by the information acquisition unit 11 is within the first speed range (step S2).
  • the first speed range can be arbitrarily set. As an example, the first speed range is 0 to 60 km / h.
  • the determination unit 12 determines that the vehicle driver is not in a traveling state in which the viewing time of the display panel 15 is shortened (step S2: Yes). In this case, the display control unit 13 sets the depth amount of the virtual depth expression for the display object displayed on the display panel 15 as D1 (step S3). That is, as shown in FIG. 6A, the display control unit 13 displays the information 30 to 32 so that the depth amount D1 of the information 30 to 32 becomes large when the information 30 to 32 is displayed with a stereoscopic effect.
  • the determination unit 12 determines that the vehicle is in a traveling state in which the viewing time of the display panel 15 by the driver of the vehicle is shortened (step). S2: No).
  • the display control unit 13 performs display so as to suppress display of the virtual depth expression with respect to the display of the display object using the virtual depth expression on the display panel 15.
  • “display in which virtual depth expression is suppressed” means that display is performed so that the depth amount D (see FIG. 2) for displaying the display object with a stereoscopic effect is small.
  • the display control unit 13 can suppress the stereoscopic effect by narrowing the width of the shadow.
  • the determination unit 12 determines whether or not the vehicle speed acquired by the information acquisition unit 11 is within the second speed range (step S4).
  • the second speed range can be arbitrarily set. As an example, the second speed range is 61 to 80 km / h.
  • the display control unit 13 sets the depth amount of the display object displayed on the display panel 15 as D2. (Step S5).
  • the depth amount D2 is smaller than the depth amount D1 (D2 ⁇ D1). Therefore, as shown in FIG. 6B, the display control unit 13 suppresses the stereoscopic effect more than the case shown in FIG. 6A (depth amount D1) when each of the information 30 to 32 is displayed with a stereoscopic effect. be able to.
  • the determination unit 12 determines that the vehicle speed acquired by the information acquisition unit 11 is the third speed range. Whether or not (step S6).
  • the third speed range can be arbitrarily set. As an example, the third speed range is 81 to 100 km / h.
  • the display control unit 13 sets the depth amount of the display object displayed on the display panel 15 as D3. (Step S7).
  • the depth amount D3 is smaller than the depth amount D2 (D3 ⁇ D2). Therefore, as illustrated in FIG. 6C, the display control unit 13 suppresses the stereoscopic effect more than the case illustrated in FIG. 6B (depth amount D2) when each of the information 30 to 32 is displayed with a stereoscopic effect. be able to.
  • the display control unit 13 displays The depth amount of the display object displayed on the panel 15 is set to D4 (step S8).
  • the depth amount D4 is smaller than the depth amount D3 (D4 ⁇ D3). Therefore, as shown in FIG. 6D, the display control unit 13 can suppress the stereoscopic effect more than the case shown in FIG. 6C (depth amount D3) when displaying each piece of information 30 to 32.
  • the display example illustrated in FIG. 6D illustrates a case where the depth amount D4 is 0, that is, a case where the display object is displayed in a planar manner without performing virtual depth expression.
  • the depth amount of the display object displayed on the display panel 15 changes in four stages D1 to D4 according to the speed of the vehicle has been described.
  • the depth amount may be changed in five steps or more, or may be changed in two steps or three steps. Further, as shown in FIG. 5, the depth may be gradually reduced as the speed of the vehicle increases.
  • the virtual depth expression amount is 100%. 100% in this case is, for example, the depth amount D1 shown in FIG. 6A. Further, when the traveling speed is 51 km / h or more and 100 km / h, the virtual depth expression amount is gradually suppressed according to the traveling speed. In the example of FIG. 5, the virtual depth expression amount is set to 0% when the traveling speed is 100 km / h or more, but the virtual depth expression is not limited to 0%, such as 5% or 10%, and driving is suppressed. A depth expression amount that can be accurately recognized by a person in a short time may be used.
  • the transition from the virtual depth expression amount of 100% to 0% is not limited to a straight line that is directly proportional to the traveling speed, but may be a curve or an exponential function. Furthermore, the traveling speed at which the suppression of the virtual depth expression amount is not limited to 50 km / h, but may be a lower traveling speed or a higher traveling speed.
  • a display device and a display control method capable of accurately transmitting information to the driver.
  • a decorative display is performed by displaying with a virtual depth expression, and when driving at high speed, a virtual depth display is suppressed, or a virtual display is suppressed. Display that does not perform typical depth expression.
  • the driver When traveling at a traveling speed equal to or higher than a predetermined speed, the driver has to concentrate more by looking outside the vehicle, particularly by viewing the traveling direction, as compared to traveling at a traveling speed less than the predetermined speed. For this reason, since the visual recognition time of the display panel 15 is shortened, the driver can visually recognize the information displayed on the display panel 15 in a shorter time by setting the display to suppress the virtual depth expression. can do.
  • the most necessary information in the traveling state in which the visual recognition time of the display panel 15 by the driver of the vehicle is shortened is speed information 30, Either the rotation speed information 31 or the shift position information 32, or a combination thereof. Therefore, it is desirable to apply the present invention to display at least such information.
  • the vehicle display device according to the present embodiment operates in the determination unit 12, that is, the determination unit 12 has a shorter viewing time of the display panel 15 by the driver of the vehicle.
  • the criteria for determining that the running state is different. Since other than this is the same as the vehicle display device described in the first embodiment, a duplicate description is omitted.
  • FIG. 7 is a flowchart for explaining the operation of the vehicle display device according to the present embodiment.
  • the information acquisition unit 11 acquires travel information 22.
  • the information acquisition unit 11 acquires travel path information during travel based on current vehicle position information and map information as travel information 22 (step S11).
  • the information acquisition unit 11 is an example of acquiring traveling road information during traveling based on the current position information and map information of the vehicle.
  • the information acquired by the information acquisition unit 11 is not limited to these examples.
  • gate passing information such as a highway by ETC (Electronic Toll Collection ⁇ System), DSRC (Dedicated hor Short-Range Communication), VICS (registered trademark) ( Information acquired by Vehicle (Information) and Communication (System) may be used.
  • ETC Electronic Toll Collection ⁇ System
  • DSRC Dedicated hor Short-Range Communication
  • VICS registered trademark
  • Information acquired by Vehicle Information
  • Communication System
  • the determination unit 12 determines whether or not the traveling road information acquired by the information acquisition unit 11 is a traveling road that is in a traveling state in which the viewing time of the display panel 15 by the driver of the vehicle is shortened ( Step S12).
  • step S12 determines that the currently traveling road is not a road on which the display time of the display panel 15 by the driver of the vehicle is short (step S12: No).
  • the display control unit 13 The display state using the virtual depth expression for three-dimensionally expressing the display object displayed on is held (step S13). For example, when the vehicle is traveling on a general road, the determination unit 12 determines that the traveling path in which the time for visually recognizing the display panel 15 by the driver of the vehicle is not short.
  • step S12 determines that the currently traveled travel route is a travel route in which the visual recognition time of the display panel 15 by the driver of the vehicle is shortened (step S12: Yes)
  • the display control unit 13 displays It is assumed that the virtual depth expression for stereoscopically expressing the display object displayed on the panel 15 is suppressed (step S14). More specifically, the display object displayed on the display panel 15 is displayed with reduced depth. Alternatively, the display object is planarly displayed on the display panel 15. Note that the display method that suppresses the virtual depth expression is the same as that described in the first embodiment.
  • the determination unit 12 determines that the current position of the vehicle is traveling on a traveling road capable of traveling at a high speed such as an expressway or a circuit
  • the determination unit 12 is a traveling road on which the display time of the display panel by the vehicle driver is shortened. Judge that there is.
  • the determination unit 12 determines that the current position of the vehicle is traveling on a traveling path in which corners of a predetermined curvature such as a saddle are continuous
  • the traveling path in which the display time of the display panel by the driver of the vehicle is shortened. It is judged that.
  • the condition for the determination unit 12 to determine that the traveling path shortens the display panel viewing time by the vehicle driver is not limited to the above-described example.
  • the travel path on which the vehicle is currently traveling is determined by the time required for the driver of the vehicle to view the display panel. It is determined whether or not the travel path is shortened. Therefore, the three-dimensional effect of the display object displayed on the display panel can be changed according to the type of travel path on which the vehicle is actually traveling, and the driving information can be accurately conveyed to the driver. .
  • the vehicle display device according to the present embodiment operates in the determination unit 12, that is, the determination unit 12 has a shorter viewing time of the display panel 15 by the driver of the vehicle.
  • the criteria for determining that the running state is different. Since other than this is the same as the vehicle display device described in the first embodiment, a duplicate description is omitted.
  • FIG. 8 is a flowchart for explaining the operation of the vehicle display device according to the present embodiment.
  • the information acquisition unit 11 acquires travel information 22.
  • the information acquisition unit 11 acquires travel path information scheduled to travel based on the current position information and map information of the vehicle as the travel information 22 (step S21).
  • the acquisition of the travel route information scheduled for travel is the same as in the second embodiment, but in this embodiment, before entering the travel route in a travel state where the visual recognition time of the display panel 15 by the driver of the vehicle is shortened.
  • the travel route information scheduled to be traveled is acquired so that the determination unit 12 can perform the determination.
  • the determination unit 12 determines whether or not the travel route scheduled to travel from now on is a travel route in a travel state in which the viewing time of the display panel 15 by the driver of the vehicle is shortened (step S22). For example, the determination unit 12 determines that the travel route planned to travel is a travel route in which the time required for viewing the display panel 15 by the driver of the vehicle is shortened when the vehicle enters the highway. In addition, when the vehicle enters a traveling road where a corner having a predetermined curvature such as a kite continues, the determination section 12 shortens the time for which the traveling road is to be viewed by the driver of the vehicle on the display panel 15. It is determined that the road is running.
  • the travel schedule is less than a predetermined distance when a travel path in which the visual recognition time of the display panel 15 by the driver of the vehicle is shortened is continuous from less than a predetermined distance in the traveling direction, or in a preset travel path. This may be the case when the vehicle driver is scheduled to enter the traveling road where the viewing time of the display panel 15 by the driver of the vehicle becomes shorter.
  • the predetermined distance here is arbitrary, but is suitably 10 m, 20 m, or the like.
  • Step S22: No When the determination unit 12 determines that the travel route planned to travel is not a travel route in which the vehicle driver can visually recognize the display panel 15 (Step S22: No), the operations of Steps S21 to S22 are repeated. On the other hand, when the travel route is a travel route in which the visual recognition time of the display panel 15 by the driver of the vehicle is shortened, the determination unit 12 displays the display panel 15 by the driver of the vehicle after the vehicle enters the travel route. It will be judged that it will be in the run state where the visual recognition time of becomes short (Step S22: Yes).
  • the display control unit 13 controls the display of the display object displayed on the display panel 15 so as to suppress the virtual depth expression when the vehicle enters the travel path (step S23). . More specifically, the display object displayed on the display panel 15 is displayed with reduced depth. Alternatively, the display object is planarly displayed on the display panel 15. Note that the display method that suppresses the virtual depth expression is the same as that described in the first embodiment.
  • step S24 determines whether or not the vehicle has left the traveling path where the visual recognition time of the display panel 15 by the driver of the vehicle is shortened.
  • step S24: No the operation of step S24 is repeated.
  • step S24: Yes the display control unit 13 displays the display object displayed on the display panel 15.
  • the form is controlled to be a display using a virtual depth expression (step S25). Note that a method for displaying a display object using a virtual depth expression is the same as that described in the first embodiment.
  • the travel route on which the vehicle is scheduled to travel is shorter than the time required for the vehicle driver to view the display panel. It is determined whether or not the travel route is. Therefore, the three-dimensional effect of the display object displayed on the display panel can be changed according to the type of the travel path on which the vehicle actually travels, and the driving information can be accurately conveyed to the driver.
  • FIG. 9 is a block diagram of an example of a vehicle display device (display device) according to the fourth embodiment.
  • the vehicle display device 101 includes an information acquisition unit 111, a determination unit 112, a display control unit 113, and a display panel 115.
  • the information acquisition unit 111, the determination unit 112, and the display control unit 113 constitute a control unit 110 that controls the vehicle display device 101 and the display panel 115, and the control unit 110 is a CPU (Central Processing Unit).
  • a vehicle display device 101 according to the present embodiment is a display device that displays at least information necessary for vehicle operation, such as a vehicle speed, an engine speed, and a shift position, and is generally an instrument panel or cluster. It is called a panel.
  • the information acquisition unit 111 acquires operation information 121 and fatigue determination information 122.
  • the operation information 121 is information necessary for the operation of the vehicle.
  • Various parameters such as water temperature information.
  • the operation information 121 may include auxiliary information in addition to information necessary for vehicle operation.
  • the auxiliary information includes, for example, climate information, date / time information, travel distance information (trip meter, odometer), navigation information, and the like.
  • the operation information 121 shown above is an example, and the operation information 121 may include information other than the above.
  • the fatigue determination information 122 is information for determining a driver's fatigue status, and is, for example, vehicle travel history information or driver's line-of-sight movement information.
  • the determination unit 112 determines whether the driver is tired based on the fatigue determination information 122 acquired by the information acquisition unit 111. When the vehicle travel history information is acquired as the fatigue determination information 122, the determination unit 112 obtains the continuous travel time of the vehicle using the travel history information. Then, the determination unit 112 determines that the driver is tired when the obtained continuous running time of the vehicle is a predetermined time or longer (for example, 2 hours or longer). The method for obtaining the continuous running time of the vehicle will be described in detail in Embodiment 5.
  • the determination unit 112 determines that the driver is tired when the driver's line-of-sight movement is below a predetermined level.
  • a method for determining the driver's fatigue status using the line-of-sight movement information will be described in detail in Embodiment 6.
  • the display control unit 113 controls display on the display panel 115. Specifically, the display control unit 113 displays various parameters as the operation information 121 acquired by the information acquisition unit 111 on the display panel 115 based on a preset display form.
  • the display panel 115 displays information including at least operation information 121 used for vehicle operation.
  • a liquid crystal panel or an organic EL (Electroluminescence) panel can be used as the display panel 115. Note that examples of display on the display panel 115 are the same as those in FIGS. 2 and 3 described in Embodiment 1, and thus redundant description is omitted.
  • the display control unit 113 displays the display form of the display panel 115 that suppresses virtual depth expression.
  • the display on the display panel 115 is controlled so that
  • the operation of the vehicle display device 101 according to the present embodiment will be described in detail.
  • FIG. 10 is a flowchart for explaining the operation of the vehicular display device 101 according to the present embodiment.
  • the premise of the operation described in FIG. 10 is a state in which the vehicle on which the vehicle display device 101 is mounted is operating, and the display control unit 113 displays at least the operation information 121 on the display panel 115.
  • the information acquisition unit 111 acquires fatigue determination information 122 for determining the driver's fatigue status (step S101).
  • the determination unit 112 determines whether the driver is tired based on the fatigue determination information 122 acquired by the information acquisition unit 111 (step S102).
  • step S102 determines that the driver is not fatigued
  • step S102 determines that the driver is not fatigued
  • step S103 the display control unit 113 displays a virtual depth for three-dimensionally expressing the display object displayed on the display panel 115.
  • the display state using the expression is held (step S103).
  • the display control unit 113 displays a virtual object for three-dimensionally expressing the display object displayed on the display panel 115. It is set as the display which suppressed depth expression (step S104).
  • “display in which virtual depth expression is suppressed” means that display is performed so that the depth amount D (see FIG. 2) for displaying the display object with a stereoscopic effect is small.
  • the display control unit 113 can suppress the virtual depth expression by narrowing the width of the shadow.
  • the display in which the virtual depth expression is suppressed includes a case where the display is performed in a planar manner without performing the virtual depth expression.
  • a display device and a display control method capable of accurately transmitting information to the driver and recognizing fatigue.
  • a decorative display is performed by displaying with a virtual depth expression, and when the driver is determined to be tired
  • a display in which virtual depth expression is suppressed or a display in which virtual depth expression is not performed is used.
  • the recognition power of the display panel 115 is reduced. Therefore, the display of the virtual depth expression is suppressed so that the information displayed on the display panel 115 can be visually observed in a shorter time. Can be possible.
  • the driver recognizes that the virtual depth expression is suppressed, it is possible to recognize fatigue and the degree of fatigue.
  • the fifth embodiment shows a specific example of the operation of the vehicle display device (display device) 101 described in the fourth embodiment.
  • the vehicular display device used in the present embodiment is basically the same as the vehicular display device 101 described in the fourth embodiment, and thus redundant description will be omitted as appropriate.
  • FIG. 11 is a flowchart for explaining the operation of the vehicular display device 101 according to the present embodiment.
  • the information acquisition unit 111 acquires vehicle travel history information as fatigue determination information 122 for determining a driver's fatigue status (step S111).
  • the determination unit 112 obtains the continuous travel time of the vehicle using the travel history information acquired by the information acquisition unit 111. Then, the determination unit 112 determines whether or not the obtained continuous running time of the vehicle is equal to or longer than the first time (step S112).
  • the information acquisition unit 111 acquires travel history information from a CAN (Controller Area Network) configuring a vehicle network or a navigation device mounted on the vehicle.
  • the determination unit 112 obtains the continuous travel time of the vehicle from the engine on / off status, gear selection information, speed information, and the like.
  • the travel history information is acquired from the navigation device, the continuous travel time is obtained using the travel history of the vehicle.
  • the continuous travel time is a time during which the vehicle travels continuously, and is an accumulated time of the time during which the vehicle travels. For example, the time when the vehicle is temporarily stopped by a signal or the like may be excluded from the accumulated time. Further, when the vehicle is stopped for a predetermined time or longer (for example, about 5 minutes) or when the engine is stopped, the accumulated continuous running time may be reset.
  • the display control unit 113 displays the display panel 115.
  • D1 be the depth amount of the virtual depth expression for the display object displayed in (Step S113). That is, as shown in FIG. 13A, when the display control unit 13 displays each information 30 to 32 with a stereoscopic effect, the initial depth D1 (the largest depth amount) of each information 30 to 32 is displayed. ).
  • the first time can be arbitrarily determined. As an example, the first time may be 1 hour.
  • step S12 when the determination unit 112 determines that the continuous running time of the vehicle is equal to or longer than the first time, that is, when it is determined that the driver is tired (step S12: Yes), the display control unit 113 displays The display object displayed on the panel 115 is displayed so as to suppress the virtual depth expression.
  • the determination unit 112 determines whether or not the continuous running time of the vehicle is equal to or longer than the second time (step S114).
  • the second time is longer than the first time, and can be arbitrarily set. As an example, the second time is one and a half hours. If the determination unit 112 determines that the continuous running time of the vehicle is not equal to or longer than the second time (step S114: No), the display control unit 113 performs virtual processing on the display object displayed on the display panel 115.
  • a depth amount of a typical depth expression is set to D2 (step S115).
  • the depth amount D2 is smaller than the depth amount D1 (D2 ⁇ D1). Therefore, as illustrated in FIG. 13B, the display control unit 113 suppresses the stereoscopic effect more than the case illustrated in FIG. 13A (depth amount D1) when each of the information 30 to 32 is displayed with a stereoscopic effect. be able to.
  • the determination unit 112 determines whether the continuous travel time of the vehicle is equal to or longer than the third time. Is determined (step S116).
  • the third time is longer than the second time, and can be arbitrarily set. As an example, the third time is 2 hours.
  • the display control unit 113 performs a virtual operation on the display object displayed on the display panel 115. A depth amount of a typical depth expression is set to D3 (step S117).
  • the depth amount D3 is smaller than the depth amount D2 (D3 ⁇ D2). Therefore, as illustrated in FIG. 13C, the display control unit 13 suppresses the stereoscopic effect more than the case illustrated in FIG. 13B (depth amount D2) when each of the information 30 to 32 is displayed with a stereoscopic effect. be able to.
  • the display control unit 113 virtually displays the display object displayed on the display panel 115.
  • the depth amount of the deep depth expression is set to D4 (step S118).
  • the depth amount D4 is smaller than the depth amount D3 (D4 ⁇ D3). Therefore, as shown in FIG. 13D, the display control unit 113 can suppress the stereoscopic effect more than the case shown in FIG. 13C (depth amount D3) when displaying each piece of information 30-32.
  • the display example illustrated in FIG. 13D illustrates a case where the depth amount D4 is 0, that is, a case where the display object is displayed planarly without performing virtual depth expression.
  • the virtual depth of the display object displayed on the display panel 115 changes in four stages D1 to D4 according to the continuous travel time of the vehicle. explained.
  • the depth amount may be changed in five steps or more, or may be changed in two steps or three steps.
  • the virtual depth amount is set to 100% when the continuous travel time corresponding to the continuous use time is 1 hour from the start of travel. 100% in this case is, for example, the depth amount D1 shown in FIG. 13A. Further, when the continuous travel time is 1 hour or more and 2 hours, the virtual depth expression amount is gradually suppressed according to the continuous travel time. In the example of FIG. 12, the virtual depth expression is set to 0% when the continuous running time is 2 hours or more, but the virtual depth expression is not limited to 0%, such as 5% or 10%, and the driver Any depth expression amount that can be accurately recognized in a short time may be used.
  • the transition from the virtual depth expression amount of 100% to 0% is not limited to a straight line that is directly proportional to the continuous running time, but may be a curve or an exponential function.
  • the continuous running time when the suppression of the virtual depth expression amount is started is not limited to 1 hour, and may be a shorter elapsed time or a longer elapsed time.
  • the invention according to the present embodiment described above also provides a display device and a display control method capable of accurately transmitting information to the driver, similarly to the vehicle display device 101 described in the fourth embodiment. can do.
  • FIG. 14 is a block diagram showing an example of a line-of-sight movement detection device 140 used in the vehicle display device according to the present embodiment.
  • the visual line movement detection device 140 includes an infrared irradiation unit 141, an infrared camera 142, and a visual line detection unit 143.
  • the infrared irradiation unit 141 irradiates the driver's face portion 145 with infrared rays.
  • the infrared camera 142 captures an image of the driver's face 145. That is, the infrared camera 142 captures an image of the driver's face portion 145 irradiated with infrared rays.
  • the line-of-sight detection unit 143 detects a driver's line-of-sight movement using an image of the driver's face portion 145 captured by the infrared camera 142. Specifically, the gaze detection unit 143 detects the driver's gaze movement using the corneal reflection position and the pupil position. Information (line-of-sight movement information) related to the driver's line-of-sight movement detected by the line-of-sight detection unit 143 is supplied to the information acquisition unit 111 shown in FIG.
  • FIG. 15 is a flowchart for explaining the operation of the vehicle display device according to the present embodiment.
  • the information acquisition unit 111 acquires line-of-sight movement information from the line-of-sight movement detection device 140 described above as fatigue determination information 122 for determining the driver's fatigue status.
  • the determination unit 112 determines whether the driver is tired based on the line-of-sight movement information acquired by the information acquisition unit 111. Specifically, it is determined whether or not the driver's line-of-sight movement is below a predetermined level (step S122).
  • FIG. 16 is a diagram showing the total amount of line-of-sight movement per unit time.
  • the determination unit 112 determines that the driver's line-of-sight movement is greater than or equal to a predetermined level and the driver is not tired. To do.
  • the total amount of line-of-sight movement per unit time is below a predetermined threshold, it is determined that the driver's line-of-sight movement is below a predetermined level and the driver is tired. In the example shown in FIG.
  • a criterion for determining whether or not the driver is tired can be arbitrarily set. That is, the value of the threshold value, the number of times that the threshold value is continuously decreased (corresponding to t1), and the number of times that the value is continuously greater than or equal to the threshold value (corresponding to t2) can be arbitrarily set.
  • the number of line-of-sight movements per unit time may be used when determining whether or not the line-of-sight movement of the driver is below a predetermined level. In this case, when the number of line-of-sight movements per unit time of the driver falls below a predetermined number, it can be determined that the driver is tired.
  • the number of line-of-sight movements is the number of times of line-of-sight movement that is greater than or equal to a predetermined amount (a value greater than the error). For example, when the total number of line-of-sight movements per unit time (for example, every 10 seconds) falls below a predetermined number twice consecutively, it can be determined that the driver is in a fatigued state. After that, when the total number of line-of-sight movements per unit time reaches a predetermined number of times continuously twice, it can be determined that the driver is not fatigued.
  • a predetermined amount a value greater than the error
  • step S122 determines that the driver is not tired.
  • the display control unit 113 maintains a display state using a virtual depth expression for three-dimensionally expressing the display object displayed on the display panel 115 (step S123).
  • step S122 when the movement of the driver's line of sight is below a predetermined level (step S122: Yes), the determination unit 112 determines that the driver is tired. In this case, the display control unit 113 sets the display to suppress the virtual depth expression for three-dimensionally expressing the display object displayed on the display panel 115 (step S124).
  • the display in which the virtual depth expression is suppressed includes a case where the display is performed in a planar manner without performing the virtual depth expression. Since the method for suppressing the virtual depth expression is the same as that described in the fourth and fifth embodiments, the redundant description is omitted.
  • the driver's fatigue status is determined using the driver's eye movement level.
  • the number of blinks of the driver may be detected, and it may be determined that the driver is fatigued when the number of blinks exceeds a predetermined number.
  • a warning may be displayed on the display panel 115 in addition to suppressing the virtual depth expression for the display object.
  • the frame portion of the meter may be a conspicuous color such as red, or a warning message may be blinked.
  • a display device capable of accurately transmitting information to the driver and recognizing fatigue, and A display control method can be provided.
  • the determination by the determination unit 112 can be, for example, combinations of the above-described determination criteria, combinations of various parameters such as driving time or distance on a highway, traffic jam time, and brake operation frequency.
  • the present invention is not limited to the vehicle display device, and is based on devices such as game machines, various computers, and simulation devices.
  • the processing of the display mode is possible, and the present invention can be applied to various devices that perform virtual depth expression such as a decoration purpose for a display object.
  • the present invention can be suitably used in the technical field of display devices.

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Abstract

The display device (1) according to the present invention capable of accurately conveying information to a user comprises a determination unit (12) that determines whether or not there is a situation of a drop in the accuracy of recognition of information displayed in a display panel (15), and a display control unit (13) that, in the case of the determination unit (12) having determined there is a situation of a drop in the accuracy of recognition of information displayed in the display panel (15), controls the display mode displayed in the display panel (15) so as to become a display in which the virtual depth representation is restrained.

Description

表示装置、及び表示制御方法Display device and display control method
　本発明は表示装置、及び表示制御方法に関し、特に表示された情報の視認の適確性が低下する場合に表示形態を制御する表示装置、及び表示制御方法に関する。 The present invention relates to a display device and a display control method, and more particularly to a display device and a display control method for controlling a display mode when the accuracy of visual recognition of displayed information is lowered.
　近年、自動車等のインストルメントパネルが機械式メータから液晶パネル等を用いた表示に移行しつつある。液晶パネル等を用いた車両用表示装置では多様な表示が可能であり、表示形態を変化させたり、装飾的な表示をしたりすることも可能である。特許文献１には、仮想光源から仮想的な光を照射して計器の枠部に反射光や陰影を形成することで、表示パネルに表示される計器を立体的に表現した表示が可能な車両用表示装置が開示されている。また、仮想的な立体表示は、車両用表示装置に限らずゲーム機など様々な装置において実施されている。 In recent years, instrument panels for automobiles and the like are shifting from mechanical meters to displays using liquid crystal panels. A vehicle display device using a liquid crystal panel or the like can perform various displays, and can change a display form or perform a decorative display. Patent Document 1 discloses a vehicle capable of displaying a three-dimensional representation of an instrument displayed on a display panel by irradiating virtual light from a virtual light source to form reflected light or shadow on a frame portion of the instrument. A display device is disclosed. In addition, the virtual stereoscopic display is implemented not only in the vehicle display device but also in various devices such as a game machine.
特開２０１１－１２１５４４号公報JP 2011-121544 A
　このような表示装置では多様な表示が可能であり、例えば車両用の場合では、車両の運行に用いる運行情報（速度メータなど）を仮想的に立体感を表現した表示とすることで、機械式メータが持つ立体感を表現したり、美的表現の優れた表示とすることができる（特許文献１参照）。 In such a display device, various displays are possible. For example, in the case of a vehicle, the operation information (speed meter, etc.) used for the operation of the vehicle is displayed as a virtual three-dimensional display. The three-dimensional effect of the meter can be expressed, or an excellent display of aesthetic expression can be achieved (see Patent Document 1).
　しかしながら、様々な条件によって、表示パネルに表示された情報の視認の適確性が低下する状況が発生し得る。このような状況において、表示パネルに表示する情報を仮想的に立体感を表現した表示とすると、表示パネルに表示された情報の確認に要する時間が通常時よりも長くなってしまう場合や、情報の確認を通常時よりも短時間に行うことができない場合が生じるという問題がある。 However, depending on various conditions, a situation may occur in which the accuracy of visual recognition of information displayed on the display panel is degraded. In such a situation, if the information displayed on the display panel is a display that virtually expresses a three-dimensional effect, the time required to check the information displayed on the display panel may be longer than usual, or the information There is a problem that it may not be possible to perform confirmation in a shorter time than usual.
　上記課題に鑑み本発明の目的は、ユーザに的確に情報を伝えることが可能な表示装置、及び表示制御方法を提供することである。 In view of the above problems, an object of the present invention is to provide a display device and a display control method capable of accurately transmitting information to a user.
　本実施形態にかかる表示装置は、表示パネルに表示された情報の視認の適確性が低下する状況であるか否かを判断する判断部と、前記判断部が、前記表示パネルに表示された情報の視認の適確性が低下する状況であると判断した場合、前記表示パネルに表示されている表示形態を、仮想的な奥行表現を抑制した表示となるように制御する表示制御部と、を備える。 The display device according to the present embodiment includes a determination unit that determines whether or not the accuracy of visual recognition of information displayed on the display panel is deteriorated, and the information displayed on the display panel by the determination unit. A display control unit that controls the display form displayed on the display panel to be a display that suppresses virtual depth expression when it is determined that the accuracy of visual recognition of the image is reduced. .
　本実施形態にかかる表示制御方法は、表示装置が実行する表示制御方法であって、表示パネルに表示された情報の視認の適確性が低下する状況であるか否かを判断し、前記表示パネルに表示された情報の視認の適確性が低下する状況であると判断した場合、前記表示パネルに表示されている表示形態を、仮想的な奥行表現を抑制した表示となるように制御する。 The display control method according to the present embodiment is a display control method executed by a display device, and determines whether or not the accuracy of visual recognition of information displayed on the display panel is reduced, and the display panel When it is determined that the accuracy of visual recognition of the information displayed on the display is deteriorated, the display form displayed on the display panel is controlled so as to be a display in which virtual depth expression is suppressed.
　本実施形態により、ユーザに的確に情報を伝えることが可能な表示装置、及び表示制御方法を提供することができる。 According to this embodiment, it is possible to provide a display device and a display control method capable of accurately transmitting information to a user.
実施の形態１にかかる車両用表示装置の一例を示すブロック図である。1 is a block diagram illustrating an example of a vehicle display device according to a first embodiment; 実施の形態１にかかる車両用表示装置が備える表示パネルの表示例を示す図である。FIG. 3 is a diagram illustrating a display example of a display panel included in the vehicle display device according to the first embodiment; 実施の形態１にかかる表示オブジェクトの表示例を示す図である。FIG. 3 is a diagram showing a display example of a display object according to the first exemplary embodiment. 実施の形態１にかかる車両用表示装置の動作を説明するためのフローチャートである。3 is a flowchart for explaining an operation of the vehicle display device according to the first exemplary embodiment; 実施の形態１にかかる車両表示装置の動作を説明するための図である。FIG. 6 is a diagram for explaining the operation of the vehicle display device according to the first embodiment; 実施の形態１にかかる車両用表示装置の動作を説明するための図である。FIG. 5 is a diagram for explaining an operation of the vehicle display device according to the first exemplary embodiment; 実施の形態１にかかる車両用表示装置の動作を説明するための図である。FIG. 5 is a diagram for explaining an operation of the vehicle display device according to the first exemplary embodiment; 実施の形態１にかかる車両用表示装置の動作を説明するための図である。FIG. 5 is a diagram for explaining an operation of the vehicle display device according to the first exemplary embodiment; 実施の形態１にかかる車両用表示装置の動作を説明するための図である。FIG. 5 is a diagram for explaining an operation of the vehicle display device according to the first exemplary embodiment; 実施の形態２にかかる車両用表示装置の動作を説明するためのフローチャートである。6 is a flowchart for explaining an operation of the vehicle display device according to the second exemplary embodiment; 実施の形態３にかかる車両用表示装置の動作を説明するためのフローチャートである。10 is a flowchart for explaining an operation of the vehicle display device according to the third exemplary embodiment; 実施の形態４にかかる表示装置の一例を示すブロック図である。FIG. 6 is a block diagram illustrating an example of a display device according to a fourth embodiment. 実施の形態４にかかる表示装置の動作を説明するためのフローチャートである。10 is a flowchart for explaining the operation of the display device according to the fourth exemplary embodiment; 実施の形態５にかかる表示装置の動作を説明するためのフローチャートである。10 is a flowchart for explaining the operation of the display device according to the fifth exemplary embodiment; 実施の形態５にかかる表示装置の動作を説明するための図である。FIG. 10 is a diagram for explaining the operation of the display device according to the fifth exemplary embodiment; 実施の形態５にかかる表示装置の動作を説明するための図である。FIG. 10 is a diagram for explaining the operation of the display device according to the fifth exemplary embodiment; 実施の形態５にかかる表示装置の動作を説明するための図である。FIG. 10 is a diagram for explaining the operation of the display device according to the fifth exemplary embodiment; 実施の形態５にかかる表示装置の動作を説明するための図である。FIG. 10 is a diagram for explaining the operation of the display device according to the fifth exemplary embodiment; 実施の形態５にかかる表示装置の動作を説明するための図である。FIG. 10 is a diagram for explaining the operation of the display device according to the fifth exemplary embodiment; 実施の形態６にかかる表示装置で用いられる視線移動検出装置の一例を示すブロック図である。FIG. 10 is a block diagram illustrating an example of a line-of-sight movement detection device used in a display device according to a sixth embodiment; 実施の形態６にかかる表示装置の動作を説明するためのフローチャートである。14 is a flowchart for explaining the operation of the display device according to the sixth exemplary embodiment; 単位時間毎の視線移動量の総和を示す図である。It is a figure which shows the sum total of the amount of visual line movements for every unit time.
　まず、本発明の概要について説明する。
　本発明にかかる表示装置は、判断部と表示制御部とを少なくとも備える。判断部は、表示パネルに表示された情報の視認の適確性が低下する状況であるか否かを判断する。また、表示制御部は、判断部が、表示パネルに表示された情報の視認の適確性が低下する状況であると判断した場合、表示パネルに表示されている表示形態を、仮想的な奥行表現を抑制した表示となるように制御する。ここで、「表示パネルに表示された情報の視認の適確性が低下する状況」とは、表示パネルに表示されている情報をユーザが正確に視認することが困難になるような状況を意味している。 First, an outline of the present invention will be described.
The display device according to the present invention includes at least a determination unit and a display control unit. The determination unit determines whether or not a situation in which the accuracy of visual recognition of information displayed on the display panel is deteriorated. Further, the display control unit determines that the display form displayed on the display panel is a virtual depth expression when the determination unit determines that the accuracy of visual recognition of the information displayed on the display panel is reduced. Control is performed so that the display is suppressed. Here, the “situation in which the accuracy of visual recognition of information displayed on the display panel is reduced” means a situation in which it is difficult for the user to accurately visually recognize the information displayed on the display panel. ing.
　以下で説明する実施の形態１～３では、表示装置１（図１参照）は情報取得部（第１の情報取得部）１１を備えており、情報取得部１１は車両の走行情報を取得する。そして、判断部１２は、情報取得部１１で取得した走行情報に基づき、車両の運転者による表示パネルの視認時間が短くなる走行状態であるときに、表示パネル１５に表示された情報の視認の適確性が低下する状況であると判断している。 In the first to third embodiments described below, the display device 1 (see FIG. 1) includes an information acquisition unit (first information acquisition unit) 11, and the information acquisition unit 11 acquires vehicle travel information. . Based on the travel information acquired by the information acquisition unit 11, the determination unit 12 is configured to check the information displayed on the display panel 15 when the vehicle driver is in a travel state in which the viewing time of the display panel is shortened. Judging that the accuracy is reduced.
　また、以下で説明する実施の形態４～６では、表示装置１０１（図９参照）は情報取得部（第２の情報取得部）１１１を備えており、情報取得部１１１はユーザの疲労状況を判断するための疲労判断情報を取得する。そして、判断部１１２は、情報取得部１１１で取得した疲労判断情報に基づいてユーザが疲労していると判断した場合に、表示パネル１１５に表示された情報の視認の適確性が低下する状況であると判断している。 In Embodiments 4 to 6 described below, the display device 101 (see FIG. 9) includes an information acquisition unit (second information acquisition unit) 111. The information acquisition unit 111 indicates the user's fatigue status. Fatigue judgment information for judgment is acquired. And when the judgment part 112 judges that the user is tired based on the fatigue judgment information acquired by the information acquisition part 111, in the situation where the appropriateness of visual recognition of the information displayed on the display panel 115 falls. Judging that there is.
　なお、以下で説明する各実施の形態では、一例として、本発明の表示装置を車両に搭載される車両用表示装置に適用した場合について説明している。 In each of the embodiments described below, the case where the display device of the present invention is applied to a vehicle display device mounted on a vehicle is described as an example.
＜実施の形態１＞
　図１は、実施の形態１にかかる車両用表示装置の一例を示すブロック図である。図１に示すように、本実施の形態にかかる車両用表示装置１は、情報取得部１１、判断部１２、表示制御部１３、及び表示パネル１５を備える。ここで、情報取得部１１、判断部１２、及び表示制御部１３は、車両用表示装置１および表示パネル１５を制御する制御部１０を構成しており、制御部１０はＣＰＵ（Central Processing Unit）等で実現される。本実施の形態にかかる車両用表示装置１は、車両の速度、エンジンの回転数、シフトポジションなど、少なくとも車両の運行に必要な情報を表示する表示装置であり、一般的にインストルメントパネルやクラスターパネルなどと呼ばれる。 <Embodiment 1>
FIG. 1 is a block diagram illustrating an example of a vehicle display device according to the first embodiment. As shown in FIG. 1, the vehicle display device 1 according to the present embodiment includes an information acquisition unit 11, a determination unit 12, a display control unit 13, and a display panel 15. Here, the information acquisition part 11, the judgment part 12, and the display control part 13 comprise the control part 10 which controls the display apparatus 1 for vehicles and the display panel 15, and the control part 10 is CPU (Central Processing Unit). Etc. A vehicle display device 1 according to the present embodiment is a display device that displays at least information necessary for vehicle operation, such as a vehicle speed, an engine speed, and a shift position, and is generally an instrument panel or cluster. It is called a panel.
　情報取得部１１は、運行情報２１と走行情報２２とを取得する。ここで、運行情報２１とは車両の運行に必要な情報であり、例えば、車両の速度情報、エンジンの回転数情報、シフトポジション情報、油温情報、燃料の残量情報、エンジンの冷却水の水温情報などの各種パラメータである。なお、運行情報２１には、車両の運行に必要な情報以外に、補助的な情報も含まれていてもよい。補助的な情報とは、例えば、気候情報、日時情報、走行距離情報（トリップメータ、オドメータ）、ナビゲーション情報などである。また、上記で示した運行情報２１は一例であり、運行情報２１には上記以外の情報が含まれていてもよい。 The information acquisition unit 11 acquires operation information 21 and traveling information 22. Here, the operation information 21 is information necessary for vehicle operation. For example, the vehicle speed information, engine speed information, shift position information, oil temperature information, fuel remaining amount information, engine cooling water Various parameters such as water temperature information. The operation information 21 may include auxiliary information in addition to information necessary for vehicle operation. The auxiliary information includes, for example, climate information, date / time information, travel distance information (trip meter, odometer), navigation information, and the like. Moreover, the operation information 21 shown above is an example, and the operation information 21 may include information other than the above.
　判断部１２は、情報取得部１１で取得した走行情報に基づき、ユーザである車両の運転者による表示パネルの視認時間が短くなる走行状態であるか否かを判断する。例えば、判断部１２は、情報取得部１１で取得した車両の走行速度情報が所定の走行速度よりも速い走行速度を示している場合に、車両の運転者による表示パネルの視認時間が短くなる走行状態であると判断する。「車両の運転者による表示パネルの視認時間が短くなる走行状態」とは、例えば、走行速度の速い走行状態など、車外の状況の変化が急峻でありインストルメントパネルを視認する時間的な余裕が少なくなるような状態である。 The determination unit 12 determines, based on the travel information acquired by the information acquisition unit 11, whether or not it is a travel state in which the viewing time of the display panel by the vehicle driver as the user is shortened. For example, the determination unit 12 travels when the viewing time of the display panel by the driver of the vehicle is shortened when the vehicle travel speed information acquired by the information acquisition unit 11 indicates a travel speed faster than a predetermined travel speed. Judged to be in a state. “A driving state in which the display time of the display panel by the driver of the vehicle is shortened” means, for example, a driving state where the driving speed is high, and a change in the situation outside the vehicle is steep and there is a time margin for visually recognizing the instrument panel. It is a state that decreases.
　表示制御部１３は、表示パネル１５の表示を制御する。具体的には、表示制御部１３は、情報取得部１１が取得した運行情報２１としての各種パラメータを、予め設定された表示形態に基づき、表示パネル１５に表示する。 The display control unit 13 controls display on the display panel 15. Specifically, the display control unit 13 displays various parameters as the operation information 21 acquired by the information acquisition unit 11 on the display panel 15 based on a preset display form.
　表示パネル１５は、少なくとも車両の運行に用いる運行情報２１を含む情報を表示する。表示パネル１５には、例えば液晶パネルや有機ＥＬ（Electroluminescence）パネルを用いることができる。図２は、表示パネル１５の表示例を示す図である。図２に示すように、表示パネル１５には、車両の速度情報３０、エンジンの回転数情報３１、シフトポジション情報３２、油温情報３３、燃料の残量情報３４、冷却水の水温情報３５、気候情報３６、及び日時情報３７などの表示オブジェクトが表示されている。図２に示す表示例では、速度情報３０、回転数情報３１、及びシフトポジション情報３２を仮想的な立体感が得られるように、仮想的な奥行表現のある表示形態で表示している場合を示している。なお、表示パネル１５に立体感のある表示とする情報はユーザが任意に決定することができる。 The display panel 15 displays information including at least operation information 21 used for vehicle operation. As the display panel 15, for example, a liquid crystal panel or an organic EL (Electroluminescence) panel can be used. FIG. 2 is a diagram illustrating a display example of the display panel 15. As shown in FIG. 2, the display panel 15 includes vehicle speed information 30, engine speed information 31, shift position information 32, oil temperature information 33, remaining fuel information 34, cooling water temperature information 35, Display objects such as climate information 36 and date / time information 37 are displayed. In the display example shown in FIG. 2, the speed information 30, the rotation speed information 31, and the shift position information 32 are displayed in a display form with a virtual depth expression so that a virtual stereoscopic effect can be obtained. Show. In addition, the user can arbitrarily determine information for displaying a stereoscopic effect on the display panel 15.
　また、図２では、表示オブジェクトの立体感を表現するための仮想的な奥行表現を奥行き量Ｄとして図示している。実際には、表示制御部１３は表示パネル１５に、２次元表示される表示オブジェクトに対し仮想光源からの陰影や反射光等を表現することで、仮想的に立体感のある表示を行う。なお、本発明においては、仮想的な奥行表現の表現手法は特に限定されることはなく、任意の手法を用いることができる。後述する図６Ａ～図６Ｄについても同様である。 Further, in FIG. 2, a virtual depth expression for expressing the stereoscopic effect of the display object is illustrated as a depth amount D. Actually, the display control unit 13 displays a virtually three-dimensional display on the display panel 15 by expressing shadows, reflected light, and the like from a virtual light source on a display object displayed in two dimensions. In the present invention, the method for expressing the virtual depth expression is not particularly limited, and any method can be used. The same applies to FIGS. 6A to 6D described later.
　図３に、表示パネル１５に表示される表示オブジェクトの例として、速度情報３０および回転数情報３１の表示例を示す。図３においては、回転数情報３１を構成する外周枠３１１に、外周枠３１１が奥行き量Ｄの立体であると仮定した場合に仮想光源Ｃからの光によって生成される陰影３１２を表示した例である。陰影の付加は、回転数情報３１を構成する外周枠３１１に限らずパラメータの表示等他の構成要素や、速度情報３０を示す数値に対して陰影を付加してもよい。 FIG. 3 shows a display example of the speed information 30 and the rotation speed information 31 as an example of the display object displayed on the display panel 15. FIG. 3 shows an example in which a shadow 312 generated by light from the virtual light source C is displayed on the outer peripheral frame 311 constituting the rotation speed information 31 when it is assumed that the outer peripheral frame 311 is a solid with a depth amount D. is there. The addition of the shadow is not limited to the outer peripheral frame 311 constituting the rotation speed information 31, and the shadow may be added to other constituent elements such as parameter display and the numerical value indicating the speed information 30.
　図３のような表示形態においては、仮想的な奥行表現の奥行き量は、陰影の幅やコントラストによって奥行表現の拡大や抑制を表現可能である。例えば、仮想的な奥行表現量を大きくする場合、つまり立体感をより強調した表示とする場合は、陰影の幅を大きく表示する。また、陰影の最暗部と最明部とのコントラストを大きく表示してもよい。また、仮想的な奥行き量を抑制する場合、つまり立体感を抑制した表示とする場合は、陰影の幅を狭く表示する。また、陰影の最暗部と最明部とのコントラストを小さく表示してもよい。このような表示形態の場合の陰影の幅は、図２および図６Ａ～図６Ｄに示す奥行き量Ｄ１～Ｄ４に該当する。 In the display form as shown in FIG. 3, the depth amount of the virtual depth expression can express the expansion and suppression of the depth expression by the width and contrast of the shadow. For example, when the virtual depth expression amount is increased, that is, when the stereoscopic effect is emphasized, the shadow is displayed with a large width. Further, the contrast between the darkest part and the brightest part of the shadow may be displayed large. Further, when the virtual depth amount is suppressed, that is, when the stereoscopic effect is suppressed, the shadow is displayed with a narrow width. Further, the contrast between the darkest part and the brightest part of the shadow may be displayed small. The width of the shadow in the case of such a display form corresponds to the depth amounts D1 to D4 shown in FIG. 2 and FIGS. 6A to 6D.
　そして、本実施の形態にかかる車両用表示装置１では、判断部１２が車両の運転者による表示パネルの視認時間が短くなる走行状態であると判断した場合、表示制御部１３は、表示パネル１５の表示形態が仮想的な奥行表現を抑制した表示となるように表示パネル１５の表示を制御している。以下、本実施の形態にかかる車両用表示装置１の動作について詳細に説明する。 In the vehicular display device 1 according to the present embodiment, when the determination unit 12 determines that the traveling state in which the viewing time of the display panel by the vehicle driver is shortened, the display control unit 13 displays the display panel 15. The display on the display panel 15 is controlled such that the display form is a display in which the virtual depth expression is suppressed. Hereinafter, operation | movement of the display apparatus 1 for vehicles concerning this Embodiment is demonstrated in detail.
　図４は、本実施の形態にかかる車両用表示装置１の動作を説明するためのフローチャートである。図４に説明する動作の前提としては、車両用表示装置１が搭載されている車両が動作しており、表示制御部１３が表示パネル１５に少なくとも運行情報２１を表示している状態である。図４に示すように、まず、情報取得部１１は、現在の車両の走行状態に関する情報である走行情報２２を取得する（ステップＳ１）。具体的には、情報取得部１１は走行情報２２として車両の走行速度を示す情報を、走行速度の変化に対応できる任意の時間間隔での取得を継続する。次に、判断部１２は、情報取得部１１で取得した車両の速度が第１の速度範囲か否か判断する（ステップＳ２）。第１の速度範囲は任意に設定することができる。一例として、第１の速度範囲を０～６０ｋｍ／ｈとする。 FIG. 4 is a flowchart for explaining the operation of the vehicle display device 1 according to the present embodiment. The premise of the operation described in FIG. 4 is a state in which the vehicle on which the vehicle display device 1 is mounted is operating, and the display control unit 13 displays at least the operation information 21 on the display panel 15. As shown in FIG. 4, first, the information acquisition unit 11 acquires travel information 22 that is information relating to the current travel state of the vehicle (step S1). Specifically, the information acquisition unit 11 continues to acquire information indicating the traveling speed of the vehicle as the traveling information 22 at arbitrary time intervals that can correspond to changes in the traveling speed. Next, the determination unit 12 determines whether the vehicle speed acquired by the information acquisition unit 11 is within the first speed range (step S2). The first speed range can be arbitrarily set. As an example, the first speed range is 0 to 60 km / h.
　情報取得部１１で取得した車両の速度が第１の速度範囲である場合、判断部１２は、車両の運転者による表示パネル１５の視認時間が短くなる走行状態ではないと判断する（ステップＳ２：Ｙｅｓ）。この場合、表示制御部１３は、表示パネル１５に表示されている表示オブジェクトに対する仮想的な奥行表現の奥行き量をＤ１とする（ステップＳ３）。つまり、図６Ａに示すように、表示制御部１３は、各々の情報３０～３２を立体感のある表示とする際に、各々の情報３０～３２の奥行き量Ｄ１が大きくなるように表示する。 When the vehicle speed acquired by the information acquisition unit 11 is within the first speed range, the determination unit 12 determines that the vehicle driver is not in a traveling state in which the viewing time of the display panel 15 is shortened (step S2: Yes). In this case, the display control unit 13 sets the depth amount of the virtual depth expression for the display object displayed on the display panel 15 as D1 (step S3). That is, as shown in FIG. 6A, the display control unit 13 displays the information 30 to 32 so that the depth amount D1 of the information 30 to 32 becomes large when the information 30 to 32 is displayed with a stereoscopic effect.
　一方、情報取得部１１で取得した車両の速度が第１の速度範囲ではない場合、判断部１２は、車両の運転者による表示パネル１５の視認時間が短くなる走行状態であると判断する（ステップＳ２：Ｎｏ）。この場合、表示制御部１３は、表示パネル１５に仮想的な奥行表現を用いた表示オブジェクトの表示に対して、仮想的な奥行表現を抑制した表示となるような表示を行う。ここで、「仮想的な奥行表現を抑制した表示」とは、表示オブジェクトを立体感のある表示とする奥行き量Ｄ（図２参照）が小さくなるように表示することを意味する。例えば、陰影を用いて仮想的な奥行表現を行っている場合、表示制御部１３は、陰影の幅を狭くすることで立体感を抑制することができる。 On the other hand, when the speed of the vehicle acquired by the information acquisition unit 11 is not within the first speed range, the determination unit 12 determines that the vehicle is in a traveling state in which the viewing time of the display panel 15 by the driver of the vehicle is shortened (step). S2: No). In this case, the display control unit 13 performs display so as to suppress display of the virtual depth expression with respect to the display of the display object using the virtual depth expression on the display panel 15. Here, “display in which virtual depth expression is suppressed” means that display is performed so that the depth amount D (see FIG. 2) for displaying the display object with a stereoscopic effect is small. For example, when virtual depth expression is performed using a shadow, the display control unit 13 can suppress the stereoscopic effect by narrowing the width of the shadow.
　判断部１２は、情報取得部１１で取得した車両の速度が第２の速度範囲であるか否かを判断する（ステップＳ４）。第２の速度範囲は任意に設定することができる。一例として、第２の速度範囲を６１～８０ｋｍ／ｈとする。そして、情報取得部１１で取得した車両の速度が第２の速度範囲である場合（ステップＳ４：Ｙｅｓ）、表示制御部１３は、表示パネル１５に表示されている表示オブジェクトの奥行き量をＤ２とする（ステップＳ５）。ここで、奥行き量Ｄ２は奥行き量Ｄ１よりも小さい値である（Ｄ２＜Ｄ１）。よって、図６Ｂに示すように、表示制御部１３は、各々の情報３０～３２を立体感のある表示とする際に、図６Ａに示した場合（奥行き量Ｄ１）よりも立体感を抑制することができる。 The determination unit 12 determines whether or not the vehicle speed acquired by the information acquisition unit 11 is within the second speed range (step S4). The second speed range can be arbitrarily set. As an example, the second speed range is 61 to 80 km / h. When the vehicle speed acquired by the information acquisition unit 11 is in the second speed range (step S4: Yes), the display control unit 13 sets the depth amount of the display object displayed on the display panel 15 as D2. (Step S5). Here, the depth amount D2 is smaller than the depth amount D1 (D2 <D1). Therefore, as shown in FIG. 6B, the display control unit 13 suppresses the stereoscopic effect more than the case shown in FIG. 6A (depth amount D1) when each of the information 30 to 32 is displayed with a stereoscopic effect. be able to.
　一方、情報取得部１１で取得した車両の速度が第２の速度範囲でない場合（ステップＳ４：Ｎｏ）、判断部１２は、情報取得部１１で取得した車両の速度が第３の速度範囲であるか否かを判断する（ステップＳ６）。第３の速度範囲は任意に設定することができる。一例として、第３の速度範囲を８１～１００ｋｍ／ｈとする。そして、情報取得部１１で取得した車両の速度が第３の速度範囲である場合（ステップＳ６：Ｙｅｓ）、表示制御部１３は、表示パネル１５に表示されている表示オブジェクトの奥行き量をＤ３とする（ステップＳ７）。ここで、奥行き量Ｄ３は奥行き量Ｄ２よりも小さい値である（Ｄ３＜Ｄ２）。よって、図６Ｃに示すように、表示制御部１３は、各々の情報３０～３２を立体感のある表示とする際に、図６Ｂに示した場合（奥行き量Ｄ２）よりも立体感を抑制することができる。 On the other hand, when the vehicle speed acquired by the information acquisition unit 11 is not in the second speed range (step S4: No), the determination unit 12 determines that the vehicle speed acquired by the information acquisition unit 11 is the third speed range. Whether or not (step S6). The third speed range can be arbitrarily set. As an example, the third speed range is 81 to 100 km / h. When the vehicle speed acquired by the information acquisition unit 11 is in the third speed range (step S6: Yes), the display control unit 13 sets the depth amount of the display object displayed on the display panel 15 as D3. (Step S7). Here, the depth amount D3 is smaller than the depth amount D2 (D3 <D2). Therefore, as illustrated in FIG. 6C, the display control unit 13 suppresses the stereoscopic effect more than the case illustrated in FIG. 6B (depth amount D2) when each of the information 30 to 32 is displayed with a stereoscopic effect. be able to.
　また、情報取得部１１で取得した車両の速度が第３の速度範囲でない場合（ステップＳ６：Ｎｏ）、具体的には、車両の速度が１０１ｋｍ／ｈ以上の場合、表示制御部１３は、表示パネル１５に表示されている表示オブジェクトの奥行き量をＤ４とする（ステップＳ８）。ここで、奥行き量Ｄ４は奥行き量Ｄ３よりも小さい値である（Ｄ４＜Ｄ３）。よって、図６Ｄに示すように、表示制御部１３は、各々の情報３０～３２を表示する際に、図６Ｃに示した場合（奥行き量Ｄ３）よりも立体感を抑制することができる。なお、図６Ｄに示す表示例は奥行き量Ｄ４が０の場合、つまり表示オブジェクトの仮想的な奥行表現を行わず平面的に表示した場合を示している。 In addition, when the vehicle speed acquired by the information acquisition unit 11 is not in the third speed range (step S6: No), specifically, when the vehicle speed is 101 km / h or more, the display control unit 13 displays The depth amount of the display object displayed on the panel 15 is set to D4 (step S8). Here, the depth amount D4 is smaller than the depth amount D3 (D4 <D3). Therefore, as shown in FIG. 6D, the display control unit 13 can suppress the stereoscopic effect more than the case shown in FIG. 6C (depth amount D3) when displaying each piece of information 30 to 32. Note that the display example illustrated in FIG. 6D illustrates a case where the depth amount D4 is 0, that is, a case where the display object is displayed in a planar manner without performing virtual depth expression.
　また、図６Ａ～図６Ｄに示した表示例では、表示パネル１５に表示されている表示オブジェクトの仮想的な奥行き量が車両の速度に応じてＤ１～Ｄ４の４段階で変化する場合について説明した。しかし、本実施の形態では、奥行き量の変化の段階が５段階以上で変化するように構成してもよく、また、２段階または３段階で変化するように構成してもよい。また、図５に示すように、車両の速度が速くなるほど奥行き量が次第に低減するように構成してもよい。 Further, in the display examples shown in FIGS. 6A to 6D, the case where the virtual depth amount of the display object displayed on the display panel 15 changes in four stages D1 to D4 according to the speed of the vehicle has been described. . However, in the present embodiment, the depth amount may be changed in five steps or more, or may be changed in two steps or three steps. Further, as shown in FIG. 5, the depth may be gradually reduced as the speed of the vehicle increases.
　図５に示す例は、例えば走行速度が０ｋｍ／ｈ以上５０ｋｍ／ｈまでは、仮想的な奥行表現量を１００％としている。この場合の１００％とは、例えば図６Ａに示す奥行き量Ｄ１である。また、走行速度が５１ｋｍ／ｈ以上１００ｋｍ／ｈまでは、走行速度に応じて徐々に仮想的な奥行表現量を抑制する。図５の例においては、走行速度が１００ｋｍ／ｈ以上では仮想的な奥行表現量を０％としているが、０％に限らず５％や１０％など、仮想的な奥行表現が抑制され、運転者が短時間に的確に視認できる奥行表現量であればよい。また、仮想的な奥行表現量が１００％から０％までの推移は、走行速度に正比例した直線に限らず、曲線や指数関数などでもよい。さらには、仮想的な奥行表現量の抑制が開始される走行速度は、５０ｋｍ／ｈに限らず、さらに低い走行速度やさらに高い走行速度であってもよい。 In the example shown in FIG. 5, for example, when the traveling speed is 0 km / h or more and 50 km / h, the virtual depth expression amount is 100%. 100% in this case is, for example, the depth amount D1 shown in FIG. 6A. Further, when the traveling speed is 51 km / h or more and 100 km / h, the virtual depth expression amount is gradually suppressed according to the traveling speed. In the example of FIG. 5, the virtual depth expression amount is set to 0% when the traveling speed is 100 km / h or more, but the virtual depth expression is not limited to 0%, such as 5% or 10%, and driving is suppressed. A depth expression amount that can be accurately recognized by a person in a short time may be used. The transition from the virtual depth expression amount of 100% to 0% is not limited to a straight line that is directly proportional to the traveling speed, but may be a curve or an exponential function. Furthermore, the traveling speed at which the suppression of the virtual depth expression amount is not limited to 50 km / h, but may be a lower traveling speed or a higher traveling speed.
　以上で説明した本実施の形態にかかる発明により、運転者に的確に情報を伝えることが可能な表示装置、及び表示制御方法を提供することができる。具体的には、所定未満の走行速度による走行時は、仮想的な奥行表現のある表示を行うことで装飾的な表示を行い、高速走行時は仮想的な奥行表現を抑制した表示、または仮想的な奥行表現を行わない表示とする。所定速度以上の走行速度で走行する場合、所定速度未満の走行速度での走行時に比べて、運転者は車外の目視、特に進行方向の目視により集中しなければならない。このために、運転者は表示パネル１５の視認時間が短くなるため、仮想的な奥行表現を抑制した表示とすることで、より短時間で適切に表示パネル１５に表示される情報を目視可能とすることができる。 By the invention according to the present embodiment described above, it is possible to provide a display device and a display control method capable of accurately transmitting information to the driver. Specifically, when driving at a speed less than a predetermined speed, a decorative display is performed by displaying with a virtual depth expression, and when driving at high speed, a virtual depth display is suppressed, or a virtual display is suppressed. Display that does not perform typical depth expression. When traveling at a traveling speed equal to or higher than a predetermined speed, the driver has to concentrate more by looking outside the vehicle, particularly by viewing the traveling direction, as compared to traveling at a traveling speed less than the predetermined speed. For this reason, since the visual recognition time of the display panel 15 is shortened, the driver can visually recognize the information displayed on the display panel 15 in a shorter time by setting the display to suppress the virtual depth expression. can do.
　表示パネル１５には、上述したように様々な情報が表示されるが、車両の運転者による表示パネル１５の視認時間が短くなる走行状態において、最も必要とされる情報としては、速度情報３０、回転数情報３１またはシフトポジション情報３２のいずれかまたはこれらの組合せである。従って、少なくともこれらの情報の表示に本発明を適用することが望ましい。 Various information is displayed on the display panel 15 as described above. The most necessary information in the traveling state in which the visual recognition time of the display panel 15 by the driver of the vehicle is shortened is speed information 30, Either the rotation speed information 31 or the shift position information 32, or a combination thereof. Therefore, it is desirable to apply the present invention to display at least such information.
＜実施の形態２＞
　次に、本発明の実施の形態２について説明する。本実施の形態にかかる車両用表示装置は、実施の形態１で説明した車両用表示装置と比べて判断部１２における動作、つまり判断部１２が車両の運転者による表示パネル１５の視認時間が短くなる走行状態であると判断する際の基準が異なる。これ以外は実施の形態１で説明した車両用表示装置と同様であるので重複した説明は省略する。 <Embodiment 2>
Next, a second embodiment of the present invention will be described. Compared with the vehicle display device described in the first embodiment, the vehicle display device according to the present embodiment operates in the determination unit 12, that is, the determination unit 12 has a shorter viewing time of the display panel 15 by the driver of the vehicle. The criteria for determining that the running state is different. Since other than this is the same as the vehicle display device described in the first embodiment, a duplicate description is omitted.
　図７は、本実施の形態にかかる車両用表示装置の動作を説明するためのフローチャートである。図７に示すように、まず、情報取得部１１（図１参照）は走行情報２２を取得する。具体的には、情報取得部１１は走行情報２２として車両の現在位置情報および地図情報に基づく走行中の走行路情報を取得する（ステップＳ１１）。本実施形態においては、情報取得部１１は、車両の現在位置情報および地図情報に基づき走行中の走行路情報を取得する例とした。情報取得部１１が取得する情報は、これらの例に限らず、例えばＥＴＣ（Electronic Toll Collection System）による高速道路等のゲート通過情報や、ＤＳＲＣ（Dedicated Short-Range Communication）、ＶＩＣＳ（登録商標）（Vehicle Information and Communication System）などによって取得する情報を用いてもよい。 FIG. 7 is a flowchart for explaining the operation of the vehicle display device according to the present embodiment. As shown in FIG. 7, first, the information acquisition unit 11 (see FIG. 1) acquires travel information 22. Specifically, the information acquisition unit 11 acquires travel path information during travel based on current vehicle position information and map information as travel information 22 (step S11). In the present embodiment, the information acquisition unit 11 is an example of acquiring traveling road information during traveling based on the current position information and map information of the vehicle. The information acquired by the information acquisition unit 11 is not limited to these examples. For example, gate passing information such as a highway by ETC (Electronic Toll Collection や System), DSRC (Dedicated hor Short-Range Communication), VICS (registered trademark) ( Information acquired by Vehicle (Information) and Communication (System) may be used.
　その後、判断部１２は、情報取得部１１が取得した走行中の走行路情報が車両の運転者による表示パネル１５の視認時間が短くなる走行状態となる走行路であるか否かを判断する（ステップＳ１２）。 Thereafter, the determination unit 12 determines whether or not the traveling road information acquired by the information acquisition unit 11 is a traveling road that is in a traveling state in which the viewing time of the display panel 15 by the driver of the vehicle is shortened ( Step S12).
　現在走行中の走行路が、車両の運転者による表示パネル１５の視認時間が短くなる走行路ではないと判断部１２が判断した場合（ステップＳ１２：Ｎｏ）、表示制御部１３は、表示パネル１５に表示されている表示オブジェクトを立体的に表現するための仮想的な奥行表現を用いた表示状態を保持する（ステップＳ１３）。例えば、車両が一般道を走行している場合、判断部１２は車両の運転者による表示パネル１５の視認時間が短くなる走行路ではないと判断する。 When the determination unit 12 determines that the currently traveling road is not a road on which the display time of the display panel 15 by the driver of the vehicle is short (step S12: No), the display control unit 13 The display state using the virtual depth expression for three-dimensionally expressing the display object displayed on is held (step S13). For example, when the vehicle is traveling on a general road, the determination unit 12 determines that the traveling path in which the time for visually recognizing the display panel 15 by the driver of the vehicle is not short.
　一方、現在走行中の走行路が、車両の運転者による表示パネル１５の視認時間が短くなる走行路であると判断部１２が判断した場合（ステップＳ１２：Ｙｅｓ）、表示制御部１３は、表示パネル１５に表示されている表示オブジェクトを立体的に表現するための仮想的な奥行表現を抑制した表示とする（ステップＳ１４）。具体的には、表示パネル１５に表示されている表示オブジェクトの奥行き量を低減した表示とする。または、表示オブジェクトを表示パネル１５に平面的に表示する。なお、仮想的な奥行表現を抑制した表示とする方法については、実施の形態１で説明した場合と同様である。 On the other hand, when the determination unit 12 determines that the currently traveled travel route is a travel route in which the visual recognition time of the display panel 15 by the driver of the vehicle is shortened (step S12: Yes), the display control unit 13 displays It is assumed that the virtual depth expression for stereoscopically expressing the display object displayed on the panel 15 is suppressed (step S14). More specifically, the display object displayed on the display panel 15 is displayed with reduced depth. Alternatively, the display object is planarly displayed on the display panel 15. Note that the display method that suppresses the virtual depth expression is the same as that described in the first embodiment.
　例えば、判断部１２は、車両の現在位置が高速道路やサーキットなど高速で走行可能な走行路を走行中であると判断した場合、車両の運転者による表示パネルの視認時間が短くなる走行路であると判断する。また、判断部１２は、車両の現在位置が峠などの所定の曲率のコーナーが連続する走行路を走行していると判断した場合、車両の運転者による表示パネルの視認時間が短くなる走行路であると判断する。判断部１２が車両の運転者による表示パネルの視認時間が短くなる走行路と判断する条件は、上述した例に限らない。 For example, when the determination unit 12 determines that the current position of the vehicle is traveling on a traveling road capable of traveling at a high speed such as an expressway or a circuit, the determination unit 12 is a traveling road on which the display time of the display panel by the vehicle driver is shortened. Judge that there is. In addition, when the determination unit 12 determines that the current position of the vehicle is traveling on a traveling path in which corners of a predetermined curvature such as a saddle are continuous, the traveling path in which the display time of the display panel by the driver of the vehicle is shortened. It is judged that. The condition for the determination unit 12 to determine that the traveling path shortens the display panel viewing time by the vehicle driver is not limited to the above-described example.
　以上で説明した本実施の形態にかかる車両用表示装置では、車両の現在位置情報と地図情報とに基づいて、車両が現在走行中の走行路が、車両の運転者による表示パネルの視認時間が短くなる走行路であるか否かを判断している。よって、車両が実際に走行している走行路の種類に応じて、表示パネルに表示される表示オブジェクトの立体感を変更することができ、運転者に的確に運行情報を伝えることが可能になる。 In the vehicle display device according to the present embodiment described above, based on the current position information of the vehicle and the map information, the travel path on which the vehicle is currently traveling is determined by the time required for the driver of the vehicle to view the display panel. It is determined whether or not the travel path is shortened. Therefore, the three-dimensional effect of the display object displayed on the display panel can be changed according to the type of travel path on which the vehicle is actually traveling, and the driving information can be accurately conveyed to the driver. .
＜実施の形態３＞
　次に、本発明の実施の形態３について説明する。本実施の形態にかかる車両用表示装置は、実施の形態１で説明した車両用表示装置と比べて判断部１２における動作、つまり判断部１２が車両の運転者による表示パネル１５の視認時間が短くなる走行状態であると判断する際の基準が異なる。これ以外は実施の形態１で説明した車両用表示装置と同様であるので重複した説明は省略する。 <Embodiment 3>
Next, a third embodiment of the present invention will be described. Compared with the vehicle display device described in the first embodiment, the vehicle display device according to the present embodiment operates in the determination unit 12, that is, the determination unit 12 has a shorter viewing time of the display panel 15 by the driver of the vehicle. The criteria for determining that the running state is different. Since other than this is the same as the vehicle display device described in the first embodiment, a duplicate description is omitted.
　図８は、本実施の形態にかかる車両用表示装置の動作を説明するためのフローチャートである。図８に示すように、まず、情報取得部１１（図１参照）は走行情報２２を取得する。具体的には、情報取得部１１は走行情報２２として車両の現在位置情報および地図情報に基づく走行予定の走行路情報を取得する（ステップＳ２１）。走行予定の走行路情の取得は、実施の形態２と同様であるが、本実施形態においては車両の運転者による表示パネル１５の視認時間が短くなる走行状態となる走行路に進入する前に判断部１２が判断可能なように、走行予定の走行路情報を取得する。 FIG. 8 is a flowchart for explaining the operation of the vehicle display device according to the present embodiment. As shown in FIG. 8, first, the information acquisition unit 11 (see FIG. 1) acquires travel information 22. Specifically, the information acquisition unit 11 acquires travel path information scheduled to travel based on the current position information and map information of the vehicle as the travel information 22 (step S21). The acquisition of the travel route information scheduled for travel is the same as in the second embodiment, but in this embodiment, before entering the travel route in a travel state where the visual recognition time of the display panel 15 by the driver of the vehicle is shortened. The travel route information scheduled to be traveled is acquired so that the determination unit 12 can perform the determination.
　その後、判断部１２は、これから走行する予定の走行路が、車両の運転者による表示パネル１５の視認時間が短くなる走行状態の走行路であるか否かを判断する（ステップＳ２２）。例えば、判断部１２は、車両がこれから高速道路に進入する際に、走行予定の走行路が、車両の運転者による表示パネル１５の視認時間が短くなる走行路であると判断する。また、判断部１２は、車両がこれから峠などの所定の曲率のコーナーが連続する走行路などに進入する際に、走行予定の走行路が車両の運転者による表示パネル１５の視認時間が短くなる走行路であると判断する。走行予定とする条件は、例えば進行方向の所定距離未満内から車両の運転者による表示パネル１５の視認時間が短くなる走行路が連続している場合、または予め設定した走行経路において、所定距離未満内に車両の運転者による表示パネル１５の視認時間が短くなる走行路に進入予定である場合などである。ここでいう所定距離は任意であるが、１０ｍや２０ｍなどであることが適切である。 Thereafter, the determination unit 12 determines whether or not the travel route scheduled to travel from now on is a travel route in a travel state in which the viewing time of the display panel 15 by the driver of the vehicle is shortened (step S22). For example, the determination unit 12 determines that the travel route planned to travel is a travel route in which the time required for viewing the display panel 15 by the driver of the vehicle is shortened when the vehicle enters the highway. In addition, when the vehicle enters a traveling road where a corner having a predetermined curvature such as a kite continues, the determination section 12 shortens the time for which the traveling road is to be viewed by the driver of the vehicle on the display panel 15. It is determined that the road is running. For example, the travel schedule is less than a predetermined distance when a travel path in which the visual recognition time of the display panel 15 by the driver of the vehicle is shortened is continuous from less than a predetermined distance in the traveling direction, or in a preset travel path. This may be the case when the vehicle driver is scheduled to enter the traveling road where the viewing time of the display panel 15 by the driver of the vehicle becomes shorter. The predetermined distance here is arbitrary, but is suitably 10 m, 20 m, or the like.
　走行予定の走行路が、車両の運転者による表示パネル１５の視認時間が短くなる走行路ではないと判断部１２が判断した場合（ステップＳ２２：Ｎｏ）、ステップＳ２１～Ｓ２２の動作を繰り返す。一方、走行予定の走行路が、車両の運転者による表示パネル１５の視認時間が短くなる走行路である場合、判断部１２は、車両がこの走行路に進入後に車両の運転者による表示パネル１５の視認時間が短くなる走行状態となると判断する（ステップＳ２２：Ｙｅｓ）。表示制御部１３は、車両がこの走行路に進入する際に、表示パネル１５に表示されている表示オブジェクトの表示を、仮想的な奥行表現を抑制した表示となるように制御する（ステップＳ２３）。具体的には、表示パネル１５に表示されている表示オブジェクトの奥行き量を低減した表示とする。または、表示オブジェクトを表示パネル１５に平面的に表示する。なお、仮想的な奥行表現を抑制した表示とする方法については、実施の形態１で説明した場合と同様である。 When the determination unit 12 determines that the travel route planned to travel is not a travel route in which the vehicle driver can visually recognize the display panel 15 (Step S22: No), the operations of Steps S21 to S22 are repeated. On the other hand, when the travel route is a travel route in which the visual recognition time of the display panel 15 by the driver of the vehicle is shortened, the determination unit 12 displays the display panel 15 by the driver of the vehicle after the vehicle enters the travel route. It will be judged that it will be in the run state where the visual recognition time of becomes short (Step S22: Yes). The display control unit 13 controls the display of the display object displayed on the display panel 15 so as to suppress the virtual depth expression when the vehicle enters the travel path (step S23). . More specifically, the display object displayed on the display panel 15 is displayed with reduced depth. Alternatively, the display object is planarly displayed on the display panel 15. Note that the display method that suppresses the virtual depth expression is the same as that described in the first embodiment.
　その後、判断部１２は、車両が、車両の運転者による表示パネル１５の視認時間が短くなる走行路から退出したか否かを判断する（ステップＳ２４）。車両が、車両の運転者による表示パネル１５の視認時間が短くなる走行路の走行を続けている場合（ステップＳ２４：Ｎｏ）、ステップＳ２４の動作を繰り返す。一方、車両が、車両の運転者による表示パネル１５の視認時間が短くなる走行路から退出した場合（ステップＳ２４：Ｙｅｓ）、表示制御部１３は、表示パネル１５に表示されている表示オブジェクトの表示形態を仮想的な奥行表現を用いた表示となるように制御する（ステップＳ２５）。なお、表示オブジェクトの表示を仮想的な奥行表現を用いた表示とする方法については、実施の形態１で説明した場合と同様である。 Thereafter, the determination unit 12 determines whether or not the vehicle has left the traveling path where the visual recognition time of the display panel 15 by the driver of the vehicle is shortened (step S24). When the vehicle continues to travel on the travel path in which the viewing time of the display panel 15 by the driver of the vehicle is shortened (step S24: No), the operation of step S24 is repeated. On the other hand, when the vehicle exits from the traveling road where the visual recognition time of the display panel 15 by the driver of the vehicle becomes short (step S24: Yes), the display control unit 13 displays the display object displayed on the display panel 15. The form is controlled to be a display using a virtual depth expression (step S25). Note that a method for displaying a display object using a virtual depth expression is the same as that described in the first embodiment.
　以上で説明した本実施の形態にかかる車両用表示装置では、車両の現在位置情報と地図情報とに基づいて、車両が走行予定の走行路が、車両の運転者による表示パネルの視認時間が短くなる走行路であるか否かを判断している。よって、車両が実際に走行する走行路の種類に応じて、表示パネルに表示される表示オブジェクトの立体感を変更することができ、運転者に的確に運行情報を伝えることが可能になる。 In the vehicle display device according to the present embodiment described above, based on the current position information of the vehicle and the map information, the travel route on which the vehicle is scheduled to travel is shorter than the time required for the vehicle driver to view the display panel. It is determined whether or not the travel route is. Therefore, the three-dimensional effect of the display object displayed on the display panel can be changed according to the type of the travel path on which the vehicle actually travels, and the driving information can be accurately conveyed to the driver.
＜実施の形態４＞
　図９は、実施の形態４にかかる車両用表示装置（表示装置）の一例を示すブロック図である。図９に示すように、本実施の形態にかかる車両用表示装置１０１は、情報取得部１１１、判断部１１２、表示制御部１１３、及び表示パネル１１５を備える。ここで、情報取得部１１１、判断部１１２、及び表示制御部１１３は、車両用表示装置１０１および表示パネル１１５を制御する制御部１１０を構成しており、制御部１１０はＣＰＵ（Central Processing Unit）等で実現される。本実施の形態にかかる車両用表示装置１０１は、車両の速度、エンジンの回転数、シフトポジションなど、少なくとも車両の運行に必要な情報を表示する表示装置であり、一般的にインストルメントパネルやクラスターパネルなどと呼ばれる。 <Embodiment 4>
FIG. 9 is a block diagram of an example of a vehicle display device (display device) according to the fourth embodiment. As shown in FIG. 9, the vehicle display device 101 according to the present embodiment includes an information acquisition unit 111, a determination unit 112, a display control unit 113, and a display panel 115. Here, the information acquisition unit 111, the determination unit 112, and the display control unit 113 constitute a control unit 110 that controls the vehicle display device 101 and the display panel 115, and the control unit 110 is a CPU (Central Processing Unit). Etc. A vehicle display device 101 according to the present embodiment is a display device that displays at least information necessary for vehicle operation, such as a vehicle speed, an engine speed, and a shift position, and is generally an instrument panel or cluster. It is called a panel.
　情報取得部１１１は、運行情報１２１と疲労判断情報１２２とを取得する。ここで、運行情報１２１とは車両の運行に必要な情報であり、例えば、車両の速度情報、エンジンの回転数情報、シフトポジション情報、油温情報、燃料の残量情報、エンジンの冷却水の水温情報などの各種パラメータである。なお、運行情報１２１には、車両の運行に必要な情報以外に、補助的な情報も含まれていてもよい。補助的な情報とは、例えば、気候情報、日時情報、走行距離情報（トリップメータ、オドメータ）、ナビゲーション情報などである。また、上記で示した運行情報１２１は一例であり、運行情報１２１には上記以外の情報が含まれていてもよい。 The information acquisition unit 111 acquires operation information 121 and fatigue determination information 122. Here, the operation information 121 is information necessary for the operation of the vehicle. For example, the vehicle speed information, the engine speed information, the shift position information, the oil temperature information, the remaining fuel information, the engine cooling water. Various parameters such as water temperature information. The operation information 121 may include auxiliary information in addition to information necessary for vehicle operation. The auxiliary information includes, for example, climate information, date / time information, travel distance information (trip meter, odometer), navigation information, and the like. Moreover, the operation information 121 shown above is an example, and the operation information 121 may include information other than the above.
　疲労判断情報１２２はドライバーの疲労状況を判断するための情報であり、例えば、車両の走行履歴情報やドライバーの視線移動情報である。 The fatigue determination information 122 is information for determining a driver's fatigue status, and is, for example, vehicle travel history information or driver's line-of-sight movement information.
　判断部１１２は、情報取得部１１１で取得した疲労判断情報１２２に基づいてドライバーが疲労しているか否かを判断する。疲労判断情報１２２として車両の走行履歴情報を取得した場合、判断部１１２は、走行履歴情報を用いて車両の連続走行時間を求める。そして、判断部１１２は、求めた車両の連続走行時間が所定の時間以上（例えば、２時間以上）である場合にドライバーが疲労していると判断する。なお、車両の連続走行時間の求め方については実施の形態５で詳細に説明する。 The determination unit 112 determines whether the driver is tired based on the fatigue determination information 122 acquired by the information acquisition unit 111. When the vehicle travel history information is acquired as the fatigue determination information 122, the determination unit 112 obtains the continuous travel time of the vehicle using the travel history information. Then, the determination unit 112 determines that the driver is tired when the obtained continuous running time of the vehicle is a predetermined time or longer (for example, 2 hours or longer). The method for obtaining the continuous running time of the vehicle will be described in detail in Embodiment 5.
　また、疲労判断情報としてドライバーの視線移動情報を取得した場合、判断部１１２は、ドライバーの視線移動が所定のレベルを下回っている場合にドライバーが疲労していると判断する。なお、視線移動情報を用いてドライバーの疲労状況を判断する方法については実施の形態６で詳細に説明する。 Further, when the driver's line-of-sight movement information is acquired as fatigue determination information, the determination unit 112 determines that the driver is tired when the driver's line-of-sight movement is below a predetermined level. A method for determining the driver's fatigue status using the line-of-sight movement information will be described in detail in Embodiment 6.
　表示制御部１１３は、表示パネル１１５の表示を制御する。具体的には、表示制御部１１３は、情報取得部１１１が取得した運行情報１２１としての各種パラメータを、予め設定された表示形態に基づき、表示パネル１１５に表示する。 The display control unit 113 controls display on the display panel 115. Specifically, the display control unit 113 displays various parameters as the operation information 121 acquired by the information acquisition unit 111 on the display panel 115 based on a preset display form.
　表示パネル１１５は、少なくとも車両の運行に用いる運行情報１２１を含む情報を表示する。表示パネル１１５には、例えば液晶パネルや有機ＥＬ（Electroluminescence）パネルを用いることができる。なお、表示パネル１１５の表示例については、実施の形態１で説明した図２、図３の場合と同様であるので重複した説明は省略する。 The display panel 115 displays information including at least operation information 121 used for vehicle operation. As the display panel 115, for example, a liquid crystal panel or an organic EL (Electroluminescence) panel can be used. Note that examples of display on the display panel 115 are the same as those in FIGS. 2 and 3 described in Embodiment 1, and thus redundant description is omitted.
　本実施の形態にかかる車両用表示装置１０１では、判断部１１２がドライバーが疲労していると判断した場合、表示制御部１１３は、表示パネル１１５の表示形態が仮想的な奥行表現を抑制した表示となるように表示パネル１１５の表示を制御している。以下、本実施の形態にかかる車両用表示装置１０１の動作について詳細に説明する。 In the vehicular display device 101 according to the present embodiment, when the determination unit 112 determines that the driver is tired, the display control unit 113 displays the display form of the display panel 115 that suppresses virtual depth expression. The display on the display panel 115 is controlled so that Hereinafter, the operation of the vehicle display device 101 according to the present embodiment will be described in detail.
　図１０は、本実施の形態にかかる車両用表示装置１０１の動作を説明するためのフローチャートである。図１０に説明する動作の前提としては、車両用表示装置１０１が搭載されている車両が動作しており、表示制御部１１３が表示パネル１１５に少なくとも運行情報１２１を表示している状態である。図１０に示すように、まず、情報取得部１１１（図９参照）は、ドライバーの疲労状況を判断するための疲労判断情報１２２を取得する（ステップＳ１０１）。次に、判断部１１２は、情報取得部１１１で取得した疲労判断情報１２２に基づいてドライバーが疲労しているか否かを判断する（ステップＳ１０２）。そして、判断部１１２がドライバーが疲労していないと判断した場合（ステップＳ１０２：Ｎｏ）、表示制御部１１３は表示パネル１１５に表示されている表示オブジェクトを立体的に表現するための仮想的な奥行表現を用いた表示状態を保持する（ステップＳ１０３）。 FIG. 10 is a flowchart for explaining the operation of the vehicular display device 101 according to the present embodiment. The premise of the operation described in FIG. 10 is a state in which the vehicle on which the vehicle display device 101 is mounted is operating, and the display control unit 113 displays at least the operation information 121 on the display panel 115. As shown in FIG. 10, first, the information acquisition unit 111 (see FIG. 9) acquires fatigue determination information 122 for determining the driver's fatigue status (step S101). Next, the determination unit 112 determines whether the driver is tired based on the fatigue determination information 122 acquired by the information acquisition unit 111 (step S102). When the determination unit 112 determines that the driver is not fatigued (step S102: No), the display control unit 113 displays a virtual depth for three-dimensionally expressing the display object displayed on the display panel 115. The display state using the expression is held (step S103).
　一方、判断部１１２がドライバーが疲労していると判断した場合（ステップＳ１０２：Ｙｅｓ）、表示制御部１１３は、表示パネル１１５に表示されている表示オブジェクトを立体的に表現するための仮想的な奥行表現を抑制した表示とする（ステップＳ１０４）。ここで、「仮想的な奥行表現を抑制した表示」とは、表示オブジェクトを立体感のある表示とする奥行き量Ｄ（図２参照）が小さくなるように表示することを意味する。例えば、陰影を用いて仮想的な奥行表現を行っている場合、表示制御部１１３は、陰影の幅を狭くすることで仮想的な奥行表現を抑制することができる。また、仮想的な奥行表現を抑制した表示には、仮想的な奥行表現を行わずに平面的に表示する場合も含まれる。 On the other hand, when the determination unit 112 determines that the driver is tired (step S102: Yes), the display control unit 113 displays a virtual object for three-dimensionally expressing the display object displayed on the display panel 115. It is set as the display which suppressed depth expression (step S104). Here, “display in which virtual depth expression is suppressed” means that display is performed so that the depth amount D (see FIG. 2) for displaying the display object with a stereoscopic effect is small. For example, when the virtual depth expression is performed using the shadow, the display control unit 113 can suppress the virtual depth expression by narrowing the width of the shadow. In addition, the display in which the virtual depth expression is suppressed includes a case where the display is performed in a planar manner without performing the virtual depth expression.
　以上で説明した本実施の形態にかかる発明により、ドライバーに的確に情報を伝えるとともに疲労を気付かせることが可能な表示装置、及び表示制御方法を提供することができる。具体的には、ドライバーが疲労していると判断されていないときは、仮想的な奥行表現のある表示を行うことで装飾的な表示を行い、ドライバーが疲労していると判断されたときは、仮想的な奥行表現を抑制した表示、または仮想的な奥行表現を行わない表示とする。ドライバーが疲労している場合は、表示パネル１１５の認識力が低下するため、仮想的な奥行表現を抑制した表示とすることで、より短時間で適切に表示パネル１１５に表示される情報を目視可能とすることができる。さらに、仮想的な奥行表現が抑制されている表示となっていることをドライバーが認識することで、疲労に気付かせることや疲労の度合いを認識することができる。 By the invention according to the present embodiment described above, it is possible to provide a display device and a display control method capable of accurately transmitting information to the driver and recognizing fatigue. Specifically, when it is not determined that the driver is tired, a decorative display is performed by displaying with a virtual depth expression, and when the driver is determined to be tired In addition, a display in which virtual depth expression is suppressed or a display in which virtual depth expression is not performed is used. When the driver is tired, the recognition power of the display panel 115 is reduced. Therefore, the display of the virtual depth expression is suppressed so that the information displayed on the display panel 115 can be visually observed in a shorter time. Can be possible. Furthermore, when the driver recognizes that the virtual depth expression is suppressed, it is possible to recognize fatigue and the degree of fatigue.
　表示パネル１１５には、上述したように様々な情報が表示されるが、ドライバーが最も適切に認識すべき情報としては、速度情報３０、回転数情報３１またはシフトポジション情報３２のいずれかまたはこれらの組合せである。従って、少なくともこれらの情報の表示に本発明を適用することが望ましい。 Various information is displayed on the display panel 115 as described above, and information that the driver should most appropriately recognize is either the speed information 30, the rotation speed information 31, the shift position information 32, or these information. It is a combination. Therefore, it is desirable to apply the present invention to display at least such information.
＜実施の形態５＞
　次に、本発明の実施の形態５について説明する。実施の形態５では、実施の形態４で説明した車両用表示装置（表示装置）１０１の動作の具体例を示している。なお、本実施の形態で用いている車両用表示装置は、実施の形態４で説明した車両用表示装置１０１と基本的に同様であるので、重複した説明は適宜省略する。 <Embodiment 5>
Next, a fifth embodiment of the present invention will be described. The fifth embodiment shows a specific example of the operation of the vehicle display device (display device) 101 described in the fourth embodiment. Note that the vehicular display device used in the present embodiment is basically the same as the vehicular display device 101 described in the fourth embodiment, and thus redundant description will be omitted as appropriate.
　図１１は、本実施の形態にかかる車両用表示装置１０１の動作を説明するためのフローチャートである。図１１に示すように、まず、情報取得部１１１は、ドライバーの疲労状況を判断するための疲労判断情報１２２として車両の走行履歴情報を取得する（ステップＳ１１１）。次に、判断部１１２は、情報取得部１１１で取得した走行履歴情報を用いて車両の連続走行時間を求める。そして、判断部１１２は、求めた車両の連続走行時間が第１の時間以上であるか否かを判断する（ステップＳ１１２）。 FIG. 11 is a flowchart for explaining the operation of the vehicular display device 101 according to the present embodiment. As shown in FIG. 11, first, the information acquisition unit 111 acquires vehicle travel history information as fatigue determination information 122 for determining a driver's fatigue status (step S111). Next, the determination unit 112 obtains the continuous travel time of the vehicle using the travel history information acquired by the information acquisition unit 111. Then, the determination unit 112 determines whether or not the obtained continuous running time of the vehicle is equal to or longer than the first time (step S112).
　例えば、情報取得部１１１は、車両のネットワークを構成しているＣＡＮ（Controller Area Network）や車両に搭載されているナビゲーション装置などから走行履歴情報を取得する。判断部１１２は、ＣＡＮを介して車両の制御コンピュータから走行履歴情報を取得した場合は、エンジンのオン・オフ状況、ギヤ選択情報、速度情報などから車両の連続走行時間を求める。また、ナビゲーション装置から走行履歴情報を取得した場合は、車両の移動履歴を用いて連続走行時間を求める。ここで、連続走行時間とは、車両が連続して走行した時間であり、車両が走行している時間の積算時間である。例えば、車両が信号等で一時停止した時間は積算時間から除いてもよい。また、車両が所定の時間以上（例えば、５分程度）停止している場合や、エンジンを停止した場合は、積算された連続走行時間をリセットしてもよい。 For example, the information acquisition unit 111 acquires travel history information from a CAN (Controller Area Network) configuring a vehicle network or a navigation device mounted on the vehicle. When the travel history information is acquired from the vehicle control computer via the CAN, the determination unit 112 obtains the continuous travel time of the vehicle from the engine on / off status, gear selection information, speed information, and the like. Further, when the travel history information is acquired from the navigation device, the continuous travel time is obtained using the travel history of the vehicle. Here, the continuous travel time is a time during which the vehicle travels continuously, and is an accumulated time of the time during which the vehicle travels. For example, the time when the vehicle is temporarily stopped by a signal or the like may be excluded from the accumulated time. Further, when the vehicle is stopped for a predetermined time or longer (for example, about 5 minutes) or when the engine is stopped, the accumulated continuous running time may be reset.
　判断部１１２が車両の連続走行時間が第１の時間以上ではないと判断した場合、つまり、ドライバーが疲労していないと判断した場合（ステップＳ１１２：Ｎｏ）、表示制御部１１３は、表示パネル１１５に表示されている表示オブジェクトに対する仮想的な奥行表現の奥行き量をＤ１とする（ステップＳ１１３）。すなわち、図１３Ａに示すように、表示制御部１３は、各々の情報３０～３２を立体感のある表示とする際に、各々の情報３０～３２の初期設定の奥行き量Ｄ１（最も大きい奥行き量）を保持する。ここで第１の時間は任意に決定することができる。一例を挙げると、第１の時間は１時間とすることができる。 When the determination unit 112 determines that the continuous running time of the vehicle is not equal to or longer than the first time, that is, when it is determined that the driver is not fatigued (step S112: No), the display control unit 113 displays the display panel 115. Let D1 be the depth amount of the virtual depth expression for the display object displayed in (Step S113). That is, as shown in FIG. 13A, when the display control unit 13 displays each information 30 to 32 with a stereoscopic effect, the initial depth D1 (the largest depth amount) of each information 30 to 32 is displayed. ). Here, the first time can be arbitrarily determined. As an example, the first time may be 1 hour.
　一方、判断部１１２が車両の連続走行時間が第１の時間以上であると判断した場合、つまり、ドライバーが疲労していると判断した場合（ステップＳ１２：Ｙｅｓ）、表示制御部１１３は、表示パネル１１５に表示されている表示オブジェクトに対して、仮想的な奥行表現を抑制した表示となるような表示を行う。 On the other hand, when the determination unit 112 determines that the continuous running time of the vehicle is equal to or longer than the first time, that is, when it is determined that the driver is tired (step S12: Yes), the display control unit 113 displays The display object displayed on the panel 115 is displayed so as to suppress the virtual depth expression.
　例えば、判断部１１２は車両の連続走行時間が第２の時間以上であるか否かを判断する（ステップＳ１１４）。ここで、第２の時間は第１の時間よりも長い時間であり、任意に設定することができる。一例として、第２の時間は１時間半とする。そして、判断部１１２が車両の連続走行時間が第２の時間以上ではないと判断した場合（ステップＳ１１４：Ｎｏ）、表示制御部１１３は、表示パネル１１５に表示されている表示オブジェクトに対して仮想的な奥行表現の奥行き量をＤ２とする（ステップＳ１１５）。ここで、奥行き量Ｄ２は奥行き量Ｄ１よりも小さい値である（Ｄ２＜Ｄ１）。よって、図１３Ｂに示すように、表示制御部１１３は、各々の情報３０～３２を立体感のある表示とする際に、図１３Ａに示した場合（奥行き量Ｄ１）よりも立体感を抑制することができる。 For example, the determination unit 112 determines whether or not the continuous running time of the vehicle is equal to or longer than the second time (step S114). Here, the second time is longer than the first time, and can be arbitrarily set. As an example, the second time is one and a half hours. If the determination unit 112 determines that the continuous running time of the vehicle is not equal to or longer than the second time (step S114: No), the display control unit 113 performs virtual processing on the display object displayed on the display panel 115. A depth amount of a typical depth expression is set to D2 (step S115). Here, the depth amount D2 is smaller than the depth amount D1 (D2 <D1). Therefore, as illustrated in FIG. 13B, the display control unit 113 suppresses the stereoscopic effect more than the case illustrated in FIG. 13A (depth amount D1) when each of the information 30 to 32 is displayed with a stereoscopic effect. be able to.
　一方、判断部１１２が車両の連続走行時間が第２の時間以上であると判断した場合（ステップＳ１１４：Ｙｅｓ）、判断部１１２は車両の連続走行時間が第３の時間以上であるか否かを判断する（ステップＳ１１６）。ここで、第３の時間は第２の時間よりも長い時間であり、任意に設定することができる。一例として、第３の時間は２時間とする。そして、判断部１１２が車両の連続走行時間が第３の時間以上ではないと判断した場合（ステップＳ１１６：Ｎｏ）、表示制御部１１３は、表示パネル１１５に表示されている表示オブジェクトに対して仮想的な奥行表現の奥行き量をＤ３とする（ステップＳ１１７）。ここで、奥行き量Ｄ３は奥行き量Ｄ２よりも小さい値である（Ｄ３＜Ｄ２）。よって、図１３Ｃに示すように、表示制御部１３は、各々の情報３０～３２を立体感のある表示とする際に、図１３Ｂに示した場合（奥行き量Ｄ２）よりも立体感を抑制することができる。 On the other hand, when the determination unit 112 determines that the continuous travel time of the vehicle is equal to or longer than the second time (step S114: Yes), the determination unit 112 determines whether the continuous travel time of the vehicle is equal to or longer than the third time. Is determined (step S116). Here, the third time is longer than the second time, and can be arbitrarily set. As an example, the third time is 2 hours. When the determination unit 112 determines that the continuous running time of the vehicle is not equal to or longer than the third time (step S116: No), the display control unit 113 performs a virtual operation on the display object displayed on the display panel 115. A depth amount of a typical depth expression is set to D3 (step S117). Here, the depth amount D3 is smaller than the depth amount D2 (D3 <D2). Therefore, as illustrated in FIG. 13C, the display control unit 13 suppresses the stereoscopic effect more than the case illustrated in FIG. 13B (depth amount D2) when each of the information 30 to 32 is displayed with a stereoscopic effect. be able to.
　また、判断部１１２が車両の連続走行時間が第３の時間以上であると判断した場合（ステップＳ１１６：Ｙｅｓ）表示制御部１１３は、表示パネル１１５に表示されている表示オブジェクトに対して仮想的な奥行表現の奥行き量をＤ４とする（ステップＳ１１８）。ここで、奥行き量Ｄ４は奥行き量Ｄ３よりも小さい値である（Ｄ４＜Ｄ３）。よって、図１３Ｄに示すように、表示制御部１１３は、各々の情報３０～３２を表示する際に、図１３Ｃに示した場合（奥行き量Ｄ３）よりも立体感を抑制することができる。なお、図１３Ｄに示す表示例は奥行き量Ｄ４が０の場合、つまり表示オブジェクトの仮想的な奥行表現を行わずに平面的に表示した場合を示している。 When the determination unit 112 determines that the continuous running time of the vehicle is equal to or longer than the third time (step S116: Yes), the display control unit 113 virtually displays the display object displayed on the display panel 115. The depth amount of the deep depth expression is set to D4 (step S118). Here, the depth amount D4 is smaller than the depth amount D3 (D4 <D3). Therefore, as shown in FIG. 13D, the display control unit 113 can suppress the stereoscopic effect more than the case shown in FIG. 13C (depth amount D3) when displaying each piece of information 30-32. Note that the display example illustrated in FIG. 13D illustrates a case where the depth amount D4 is 0, that is, a case where the display object is displayed planarly without performing virtual depth expression.
　また、図１３Ａ～図１３Ｄに示した表示例では、表示パネル１１５に表示されている表示オブジェクトの仮想的な奥行き量が車両の連続走行時間に応じてＤ１～Ｄ４の４段階で変化する場合について説明した。しかし、本実施の形態では、奥行き量の変化の段階が５段階以上で変化するように構成してもよく、また、２段階または３段階で変化するように構成してもよい。また、車両の連続走行時間が長くなるほど奥行き量Ｄが次第に低減するように制御してもよい。 In the display examples shown in FIGS. 13A to 13D, the virtual depth of the display object displayed on the display panel 115 changes in four stages D1 to D4 according to the continuous travel time of the vehicle. explained. However, in the present embodiment, the depth amount may be changed in five steps or more, or may be changed in two steps or three steps. Moreover, you may control so that the depth amount D reduces gradually, so that the continuous running time of a vehicle becomes long.
　図１２に示す例は、例えば連続利用時間に対応する連続走行時間が走行開始から１時間までは、仮想的な奥行き量を１００％としている。この場合の１００％とは、例えば図１３Ａに示す奥行き量Ｄ１である。また、連続走行時間が１時間以上２時間までは、連続走行時間に応じて徐々に仮想的な奥行表現量を抑制する。図１２の例においては、連続走行時間が２時間以上では仮想的な奥行表現を０％としているが、０％に限らず５％や１０％など、仮想的な奥行表現が抑制され、ドライバーが短時間に的確に視認できる奥行表現量であればよい。また、仮想的な奥行表現量が１００％から０％までの推移は、連続走行時間に正比例した直線に限らず、曲線や指数関数などでもよい。さらには、仮想的な奥行表現量の抑制が開始される連続走行時間は、１時間経過時に限らず、さらに短い経過時間やさらに長い経過時間であってもよい。 In the example shown in FIG. 12, for example, the virtual depth amount is set to 100% when the continuous travel time corresponding to the continuous use time is 1 hour from the start of travel. 100% in this case is, for example, the depth amount D1 shown in FIG. 13A. Further, when the continuous travel time is 1 hour or more and 2 hours, the virtual depth expression amount is gradually suppressed according to the continuous travel time. In the example of FIG. 12, the virtual depth expression is set to 0% when the continuous running time is 2 hours or more, but the virtual depth expression is not limited to 0%, such as 5% or 10%, and the driver Any depth expression amount that can be accurately recognized in a short time may be used. The transition from the virtual depth expression amount of 100% to 0% is not limited to a straight line that is directly proportional to the continuous running time, but may be a curve or an exponential function. Furthermore, the continuous running time when the suppression of the virtual depth expression amount is started is not limited to 1 hour, and may be a shorter elapsed time or a longer elapsed time.
　以上で説明した本実施の形態にかかる発明においても、実施の形態４で説明した車両用表示装置１０１と同様に、ドライバーに的確に情報を伝えることが可能な表示装置、及び表示制御方法を提供することができる。 The invention according to the present embodiment described above also provides a display device and a display control method capable of accurately transmitting information to the driver, similarly to the vehicle display device 101 described in the fourth embodiment. can do.
＜実施の形態６＞
　次に、本発明の実施の形態６について説明する。本実施の形態では、ドライバーの視線移動情報を用いてドライバーの疲労状況を判断する構成について詳細に説明する。なお、本実施の形態で用いている車両用表示装置は、実施の形態４で説明した車両用表示装置１０１と基本的に同様であるので、重複した説明は適宜省略する。 <Embodiment 6>
Next, a sixth embodiment of the present invention will be described. In the present embodiment, a configuration for determining the driver's fatigue status using the driver's line-of-sight movement information will be described in detail. Note that the vehicular display device used in the present embodiment is basically the same as the vehicular display device 101 described in the fourth embodiment, and thus redundant description will be omitted as appropriate.
　図１４は、本実施の形態にかかる車両用表示装置で用いられる視線移動検出装置１４０の一例を示すブロック図である。図１４に示すように、視線移動検出装置１４０は、赤外線照射部１４１、赤外線カメラ１４２、及び視線検出部１４３を備える。赤外線照射部１４１は、ドライバーの顔部分１４５に赤外線を照射する。赤外線カメラ１４２はドライバーの顔部分１４５の映像を撮影する。つまり、赤外線カメラ１４２は、赤外線が照射されているドライバーの顔部分１４５の映像を撮影する。視線検出部１４３は、赤外線カメラ１４２で撮影されたドライバーの顔部分１４５の映像を用いて、ドライバーの視線移動を検出する。具体的には、視線検出部１４３は、角膜反射位置と瞳孔位置とを用いてドライバーの視線移動を検出する。視線検出部１４３で検出されたドライバーの視線移動に関する情報（視線移動情報）は、疲労判断情報１２２として図９に示した情報取得部１１１に供給される。 FIG. 14 is a block diagram showing an example of a line-of-sight movement detection device 140 used in the vehicle display device according to the present embodiment. As illustrated in FIG. 14, the visual line movement detection device 140 includes an infrared irradiation unit 141, an infrared camera 142, and a visual line detection unit 143. The infrared irradiation unit 141 irradiates the driver's face portion 145 with infrared rays. The infrared camera 142 captures an image of the driver's face 145. That is, the infrared camera 142 captures an image of the driver's face portion 145 irradiated with infrared rays. The line-of-sight detection unit 143 detects a driver's line-of-sight movement using an image of the driver's face portion 145 captured by the infrared camera 142. Specifically, the gaze detection unit 143 detects the driver's gaze movement using the corneal reflection position and the pupil position. Information (line-of-sight movement information) related to the driver's line-of-sight movement detected by the line-of-sight detection unit 143 is supplied to the information acquisition unit 111 shown in FIG.
　図１５は、本実施の形態にかかる車両用表示装置の動作を説明するためのフローチャートである。図１５に示すように、まず、情報取得部１１１（図９参照）は、ドライバーの疲労状況を判断するための疲労判断情報１２２として、上記で説明した視線移動検出装置１４０から視線移動情報を取得する（ステップＳ１２１）。次に、判断部１１２は、情報取得部１１１で取得した視線移動情報に基づいてドライバーが疲労しているか否かを判断する。具体的には、ドライバーの視線移動が所定のレベルを下回っているか否かを判断する（ステップＳ１２２）。 FIG. 15 is a flowchart for explaining the operation of the vehicle display device according to the present embodiment. As shown in FIG. 15, first, the information acquisition unit 111 (see FIG. 9) acquires line-of-sight movement information from the line-of-sight movement detection device 140 described above as fatigue determination information 122 for determining the driver's fatigue status. (Step S121). Next, the determination unit 112 determines whether the driver is tired based on the line-of-sight movement information acquired by the information acquisition unit 111. Specifically, it is determined whether or not the driver's line-of-sight movement is below a predetermined level (step S122).
　図１６は、単位時間毎の視線移動量の総和を示す図である。図１６に示すように、判断部１１２は、単位時間毎の視線移動量の総和が所定の閾値以上である場合、ドライバーの視線移動が所定のレベル以上であり、ドライバーが疲労していないと判断する。一方、単位時間毎の視線移動量の総和が所定の閾値を下回っている場合、ドライバーの視線移動が所定のレベルを下回っており、ドライバーが疲労していると判断する。図１６に示す例では、単位時間毎（例えば１０秒毎）の視線移動量の総和が２度連続して所定の閾値を下回った場合に（タイミングｔ１参照）、ドライバーが疲労状態にあると判断している。そして、その後、単位時間毎の視線移動量の総和が２度連続して所定の閾値以上となった場合に（タイミングｔ２参照）、ドライバーが疲労していない状態になったと判断している。 FIG. 16 is a diagram showing the total amount of line-of-sight movement per unit time. As shown in FIG. 16, when the total amount of line-of-sight movement per unit time is equal to or greater than a predetermined threshold, the determination unit 112 determines that the driver's line-of-sight movement is greater than or equal to a predetermined level and the driver is not tired. To do. On the other hand, if the total amount of line-of-sight movement per unit time is below a predetermined threshold, it is determined that the driver's line-of-sight movement is below a predetermined level and the driver is tired. In the example shown in FIG. 16, it is determined that the driver is in a fatigue state when the total amount of line-of-sight movement per unit time (for example, every 10 seconds) falls below a predetermined threshold value twice (see timing t1). is doing. Then, after that, when the total of the line-of-sight movement amount per unit time is continuously equal to or more than a predetermined threshold value twice (see timing t2), it is determined that the driver is not fatigued.
　なお、図１６に示した例は一例であり、本実施の形態では、ドライバーが疲労しているか否かの判断基準は任意に設定することができる。つまり、閾値の値、並びに、連続して閾値を下回る回数（ｔ１に対応）および連続して閾値以上となる回数（ｔ２に対応）は任意に設定することができる。 Note that the example shown in FIG. 16 is an example, and in the present embodiment, a criterion for determining whether or not the driver is tired can be arbitrarily set. That is, the value of the threshold value, the number of times that the threshold value is continuously decreased (corresponding to t1), and the number of times that the value is continuously greater than or equal to the threshold value (corresponding to t2) can be arbitrarily set.
　また、上記ではドライバーの視線移動が所定のレベルを下回っているか否かを判断する際に、単位時間毎の視線移動量の総和を用いる場合について説明した。しかし本実施の形態では、ドライバーの視線移動が所定のレベルを下回っているか否かを判断する際に、単位時間当たりの視線移動回数を用いてもよい。この場合は、ドライバーの単位時間当たりの視線移動回数が所定の回数を下回った場合に、ドライバーが疲労していると判断することができる。 In the above description, the case where the total amount of line-of-sight movement per unit time is used when determining whether or not the line-of-sight movement of the driver is below a predetermined level has been described. However, in this embodiment, the number of line-of-sight movements per unit time may be used when determining whether or not the line-of-sight movement of the driver is below a predetermined level. In this case, when the number of line-of-sight movements per unit time of the driver falls below a predetermined number, it can be determined that the driver is tired.
　視線移動回数は、所定量（誤差よりも大きい値）以上の視線移動が行われた回数である。例えば、単位時間毎（例えば１０秒毎）の視線移動回数の総和が２度連続して所定の回数を下回った場合に、ドライバーが疲労状態にあると判断することができる。そして、その後、単位時間毎の視線移動回数の総和が２度連続して所定の回数以上となった場合に、ドライバーが疲労していない状態になったと判断することができる。 The number of line-of-sight movements is the number of times of line-of-sight movement that is greater than or equal to a predetermined amount (a value greater than the error). For example, when the total number of line-of-sight movements per unit time (for example, every 10 seconds) falls below a predetermined number twice consecutively, it can be determined that the driver is in a fatigued state. After that, when the total number of line-of-sight movements per unit time reaches a predetermined number of times continuously twice, it can be determined that the driver is not fatigued.
　図１５に示すように、ドライバーの視線移動が所定のレベルを下回っていない場合（ステップＳ１２２：Ｎｏ）、判断部１１２はドライバーが疲労していないと判断する。この場合、表示制御部１１３は表示パネル１１５に表示されている表示オブジェクトを立体的に表現するための仮想的な奥行表現を用いた表示状態を保持する（ステップＳ１２３）。 As shown in FIG. 15, when the driver's line-of-sight movement is not below a predetermined level (step S122: No), the determination unit 112 determines that the driver is not tired. In this case, the display control unit 113 maintains a display state using a virtual depth expression for three-dimensionally expressing the display object displayed on the display panel 115 (step S123).
　一方、ドライバーの視線移動が所定のレベルを下回っている場合（ステップＳ１２２：Ｙｅｓ）、判断部１１２はドライバーが疲労していると判断する。この場合、表示制御部１１３は、表示パネル１１５に表示されている表示オブジェクトを立体的に表現するための仮想的な奥行表現を抑制した表示とする（ステップＳ１２４）。なお、仮想的な奥行表現を抑制した表示には、仮想的な奥行表現を行わずに平面的に表示する場合も含まれる。仮想的な奥行表現を抑制する方法については、実施の形態４、５で説明した場合と同様であるので重複した説明は省略する。 On the other hand, when the movement of the driver's line of sight is below a predetermined level (step S122: Yes), the determination unit 112 determines that the driver is tired. In this case, the display control unit 113 sets the display to suppress the virtual depth expression for three-dimensionally expressing the display object displayed on the display panel 115 (step S124). Note that the display in which the virtual depth expression is suppressed includes a case where the display is performed in a planar manner without performing the virtual depth expression. Since the method for suppressing the virtual depth expression is the same as that described in the fourth and fifth embodiments, the redundant description is omitted.
　なお、上記ではドライバーの視線移動のレベルを用いてドライバーの疲労状況を判断する場合について説明した。しかし、本実施の形態では、例えばドライバーのまばたき回数を検出し、このまばたき回数が所定の回数を上回った場合にドライバーが疲労していると判断するようにしてもよい。 In the above description, the case where the driver's fatigue status is determined using the driver's eye movement level has been described. However, in the present embodiment, for example, the number of blinks of the driver may be detected, and it may be determined that the driver is fatigued when the number of blinks exceeds a predetermined number.
　また、ドライバーが疲労していると判断部１１２が判断した場合、表示オブジェクトに対する仮想的な奥行表現を抑制することに加えて、表示パネル１１５に警告を表示するようにしてもよい。このように、表示パネル１１５に警告を表示することで、疲労状態にあることをドライバーに伝えることができる。例えば、メータの枠部を赤などの目立つ色にしたり、警告メッセージを点滅させたりしてもよい。 Further, when the determination unit 112 determines that the driver is tired, a warning may be displayed on the display panel 115 in addition to suppressing the virtual depth expression for the display object. Thus, by displaying the warning on the display panel 115, it is possible to inform the driver that the vehicle is in a fatigued state. For example, the frame portion of the meter may be a conspicuous color such as red, or a warning message may be blinked.
　以上で説明した本実施の形態にかかる発明においても、実施の形態４で説明した車両用表示装置１０１と同様に、ドライバーに的確に情報を伝えるとともに疲労を気付かせることが可能な表示装置、及び表示制御方法を提供することができる。 In the invention according to the present embodiment described above, similarly to the vehicle display device 101 described in the fourth embodiment, a display device capable of accurately transmitting information to the driver and recognizing fatigue, and A display control method can be provided.
　以上、本発明を上記実施の形態に即して説明したが、本発明は上記実施の形態の構成にのみ限定されるものではなく、本願特許請求の範囲の請求項の発明の範囲内で当業者であればなし得る各種変形、修正、組み合わせを含むことは勿論である。 Although the present invention has been described with reference to the above embodiment, the present invention is not limited only to the configuration of the above embodiment, and within the scope of the invention of the claims of the present application. It goes without saying that various modifications, corrections, and combinations that can be made by those skilled in the art are included.
　例えば、ドライバーが疲労しているか否かを判断する条件としては、単純に連続運転時間のみ、または視線移動の頻度のみでは把握しきれない場合がある。判断部１１２による判断は、例えば上述した判断基準の組合せや、高速道路での運転時間または距離、渋滞時間、ブレーキ操作の頻度など様々なパラメータの組合せが可能である。 For example, as a condition for determining whether or not the driver is tired, there are cases where it cannot be grasped simply by only the continuous driving time or the frequency of eye movement. The determination by the determination unit 112 can be, for example, combinations of the above-described determination criteria, combinations of various parameters such as driving time or distance on a highway, traffic jam time, and brake operation frequency.
　また、上述した実施の形態においては、ドライバーをユーザとした車両用表示装置の例として説明したが、本発明は、車両用表示装置に限らず、ゲーム機や各種コンピュータ、シミュレーション装置など、装置による表示形態の処理が可能であり、表示オブジェクトに対する装飾目的など仮想的な奥行表現を行う様々な装置に適用可能である。 Further, in the above-described embodiment, the description has been given as an example of the vehicle display device using the driver as a user. However, the present invention is not limited to the vehicle display device, and is based on devices such as game machines, various computers, and simulation devices. The processing of the display mode is possible, and the present invention can be applied to various devices that perform virtual depth expression such as a decoration purpose for a display object.
　この出願は、２０１５年４月２３日に出願された日本出願特願２０１５－０８８５２８、２０１５－０８８５２９を基礎とする優先権を主張し、その開示の全てをここに取り込む。 This application claims priority based on Japanese Patent Application Nos. 2015-088528 and 2015-088529 filed on April 23, 2015, the entire disclosure of which is incorporated herein.
　本発明は、表示装置の技術分野において好適に利用することができる。 The present invention can be suitably used in the technical field of display devices.
１　車両用表示装置
１０　制御部
１１　情報取得部
１２　判断部
１３　表示制御部
１５　表示パネル
２１　運行情報
２２　走行情報
１０１　車両用表示装置
１１０　制御部
１１１　情報取得部
１１２　判断部
１１３　表示制御部
１１５　表示パネル
１２１　運行情報
１２２　疲労判断情報 DESCRIPTION OF SYMBOLS 1 Vehicle display apparatus 10 Control part 11 Information acquisition part 12 Judgment part 13 Display control part 15 Display panel 21 Operation information 22 Traveling information 101 Vehicle display apparatus 110 Control part 111 Information acquisition part 112 Determination part 113 Display control part 115 Display panel 121 Operation information 122 Fatigue judgment information

Claims (14)

  1. 　表示パネルに表示された情報の視認の適確性が低下する状況であるか否かを判断する判断部と、
    　前記判断部が、前記表示パネルに表示された情報の視認の適確性が低下する状況であると判断した場合、前記表示パネルに表示されている表示形態を、仮想的な奥行表現を抑制した表示となるように制御する表示制御部と、を備える、
    　表示装置。     A determination unit that determines whether or not the accuracy of visual recognition of information displayed on the display panel is reduced;
    When the determination unit determines that the accuracy of visual recognition of the information displayed on the display panel is reduced, the display form displayed on the display panel is a display that suppresses virtual depth expression. A display control unit that controls to be
    Display device.
  2. 　前記表示装置は車両用表示装置であり、
    　車両の走行情報を取得する第１の情報取得部を更に備え、
    　前記判断部は、前記走行情報に基づき、前記車両の運転者による前記表示パネルの視認時間が短くなる走行状態であるときに前記表示パネルに表示された情報の視認の適確性が低下する状況であると判断する、
    　請求項１に記載の表示装置。     The display device is a vehicle display device,
    A first information acquisition unit that acquires vehicle travel information;
    In the situation where the accuracy of visual recognition of the information displayed on the display panel is reduced when the determination unit is in a traveling state in which the visual recognition time of the display panel by the driver of the vehicle is shortened based on the traveling information. Judge that there is,
    The display device according to claim 1.
  3. 　前記第１の情報取得部は、前記車両の走行速度情報を前記走行情報として取得し、
    　前記判断部は、前記車両の走行速度情報が所定の走行速度よりも速い走行速度を示している場合に、前記車両の運転者による前記表示パネルの視認時間が短くなる走行状態であると判断する、
    　請求項２に記載の表示装置。     The first information acquisition unit acquires travel speed information of the vehicle as the travel information,
    The determination unit determines that the driving state of the display panel by the driver of the vehicle is short when the vehicle driving speed information indicates a driving speed faster than a predetermined driving speed. ,
    The display device according to claim 2.
  4. 　前記表示制御部は、前記判断部が前記車両の運転者による前記表示パネルの視認時間が短くなる走行状態であると判断した場合、前記車両の走行速度が速くなるほど前記表示パネルに表示されている表示形態の仮想的な奥行表現を次第に抑制するように、前記表示パネルに表示する表示形態を制御する、
    　請求項３に記載の表示装置。     The display control unit displays on the display panel as the traveling speed of the vehicle increases when the determination unit determines that the vehicle is in a traveling state in which the viewing time of the display panel by the driver of the vehicle is shortened. Controlling the display form displayed on the display panel so as to gradually suppress the virtual depth expression of the display form.
    The display device according to claim 3.
  5. 　前記第１の情報取得部は、前記車両の現在位置情報および地図情報に基づく走行中の走行路情報を前記走行情報として取得し、
    　前記判断部は、前記第１の情報取得部が取得した走行中の走行路情報が、前記車両の運転者による前記表示パネルの視認時間が短くなる走行状態となる走行路であるときに前記表示パネルに表示された情報の視認の適確性が低下する状況であると判断する、
    　請求項２に記載の表示装置。     The first information acquisition unit acquires, as the travel information, travel path information during travel based on current position information and map information of the vehicle,
    The determination unit displays the display when the traveling road information acquired by the first information acquisition unit is a traveling road in which the display time for the display panel by the driver of the vehicle is reduced. Judging that the accuracy of visual recognition of the information displayed on the panel is reduced,
    The display device according to claim 2.
  6. 　前記第１の情報取得部は、前記車両の現在位置情報および地図情報に基づく走行予定の走行路情報を前記走行情報として取得し、
    　前記判断部は、前記第１の情報取得部が取得した走行予定の走行路情報が、前記車両の運転者による前記表示パネルの視認時間が短くなる走行状態となる走行路であるときに前記表示パネルに表示された情報の視認の適確性が低下する状況であると判断する、
    　請求項２に記載の表示装置。     The first information acquisition unit acquires, as the travel information, travel route information scheduled to travel based on current position information and map information of the vehicle,
    The determination unit is configured to display the display when the travel route information planned to be traveled acquired by the first information acquisition unit is a travel route in which the display time for the display panel by the driver of the vehicle is reduced. Judging that the accuracy of visual recognition of the information displayed on the panel is reduced,
    The display device according to claim 2.
  7. 　ユーザの疲労状況を判断するための疲労判断情報を取得する第２の情報取得部を更に備え、
    　前記判断部は、前記疲労判断情報に基づいて前記ユーザが疲労しているときに前記表示パネルに表示された情報の視認の適確性が低下する状況であると判断する、
    　請求項１に記載の表示装置。     A second information acquisition unit that acquires fatigue determination information for determining a user's fatigue status;
    The determination unit determines that the accuracy of visual recognition of information displayed on the display panel is reduced when the user is fatigued based on the fatigue determination information.
    The display device according to claim 1.
  8. 　前記第２の情報取得部は、前記疲労判断情報として前記表示装置が搭載される装置の利用履歴情報を取得し、
    　前記判断部は、前記利用履歴情報を用いて求めた前記表示装置が搭載される装置の連続利用時間が所定の時間以上である場合に前記ユーザが疲労していると判断する、
    　請求項７に記載の表示装置。     The second information acquisition unit acquires use history information of a device on which the display device is mounted as the fatigue determination information,
    The determination unit determines that the user is tired when the continuous use time of the device on which the display device obtained using the use history information is mounted is a predetermined time or more,
    The display device according to claim 7.
  9. 　前記表示制御部は、前記判断部が前記ユーザが疲労していると判断した場合、前記表示装置が搭載される装置の連続利用時間が長くなるほど前記表示パネルに表示されている表示形態の仮想的な奥行表現を次第に抑制するように、前記表示パネルに表示する表示形態を制御する、
    　請求項８に記載の表示装置。     When the determination unit determines that the user is tired, the display control unit is a virtual display type displayed on the display panel as the continuous use time of the device on which the display device is mounted becomes longer. Control the display form displayed on the display panel so as to gradually suppress the depth expression.
    The display device according to claim 8.
  10. 　前記第２の情報取得部は、前記疲労判断情報として前記ユーザの視線移動情報を取得し、
    　前記判断部は、前記ユーザの視線移動が所定のレベルを下回っている場合に前記ユーザが疲労していると判断する、
    　請求項７に記載の表示装置。     The second information acquisition unit acquires the user's line-of-sight movement information as the fatigue determination information,
    The determination unit determines that the user is tired when the user's line-of-sight movement is below a predetermined level.
    The display device according to claim 7.
  11. 　前記表示装置は車両用表示装置であり、
    　前記第２の情報取得部は、前記疲労判断情報として前記表示装置が搭載される車両の走行履歴情報を取得し、
    　前記判断部は、前記走行履歴情報を用いて求めた前記車両の連続走行時間が所定の時間以上である場合に前記ユーザが疲労していると判断する、
    　請求項７に記載の表示装置。     The display device is a vehicle display device,
    The second information acquisition unit acquires travel history information of a vehicle on which the display device is mounted as the fatigue determination information,
    The determination unit determines that the user is tired when the continuous travel time of the vehicle obtained using the travel history information is equal to or longer than a predetermined time.
    The display device according to claim 7.
  12. 　前記表示制御部は、表示対象となる表示オブジェクトに陰影を用いることにより仮想的な奥行を表現し、前記陰影の効果を低減することで仮想的な奥行表現を抑制するように、前記表示パネルに表示する表示形態を制御する、
    　請求項１から請求項１１のいずれか１項に記載の表示装置。     The display control unit expresses a virtual depth by using a shadow on a display object to be displayed, and reduces the effect of the shadow to suppress the virtual depth expression on the display panel. Control the display form to display,
    The display device according to claim 1.
  13. 　前記表示制御部は、仮想的な奥行表現を抑制した表示として、仮想的な奥行表現を行わない表示が含まれるように、前記表示パネルに表示する表示形態を制御する、
    　請求項１から請求項１２のいずれか１項に記載の表示装置。     The display control unit controls a display form to be displayed on the display panel so as to include a display that does not perform virtual depth expression as a display that suppresses virtual depth expression.
    The display device according to claim 1.
  14. 　表示装置が実行する表示制御方法であって、
    　表示パネルに表示された情報の視認の適確性が低下する状況であるか否かを判断し、
    　前記表示パネルに表示された情報の視認の適確性が低下する状況であると判断した場合、前記表示パネルに表示されている表示形態を、仮想的な奥行表現を抑制した表示となるように制御する、
    　表示制御方法。     A display control method executed by a display device,
    Determine whether the information displayed on the display panel is less accurate or not,
    When it is determined that the accuracy of visual recognition of the information displayed on the display panel is deteriorated, the display form displayed on the display panel is controlled so as to suppress the virtual depth expression. To
    Display control method.
PCT/JP2016/001267 2015-04-23 2016-03-08 Display device and display control method WO2016170722A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2015088528A JP2016206029A (en) 2015-04-23 2015-04-23 Vehicle display device and method for controlling display panel
JP2015-088529 2015-04-23
JP2015-088528 2015-04-23
JP2015088529A JP2016203820A (en) 2015-04-23 2015-04-23 Display device, and control method of display panel

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Citations (5)

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Publication number Priority date Publication date Assignee Title
JPH08240444A (en) * 1995-03-01 1996-09-17 Nissan Motor Co Ltd Display device for vehicle
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JP2011121544A (en) * 2009-12-14 2011-06-23 Denso Corp Display device for vehicle
JP2012248011A (en) * 2011-05-27 2012-12-13 Denso Corp Image recognition device
JP2012252153A (en) * 2011-06-02 2012-12-20 Alpine Electronics Inc Image display device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08240444A (en) * 1995-03-01 1996-09-17 Nissan Motor Co Ltd Display device for vehicle
JP2011069640A (en) * 2009-09-24 2011-04-07 Denso Corp Device and system for preventing traffic congestion
JP2011121544A (en) * 2009-12-14 2011-06-23 Denso Corp Display device for vehicle
JP2012248011A (en) * 2011-05-27 2012-12-13 Denso Corp Image recognition device
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