JP2014095602A - Display control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display control device for displaying a sufficiently large interruption image as well as a meter image, and for suppressing the deterioration of the instantaneous readability of the meter image.SOLUTION: A display control device includes: normal control means for allowing a display device 10 to display meter images Da and Db pointing a scale image D1 by a rotating pointer image D3; interruption control means for allowing the display device 10 to display an interruption image Dc whose content is different from that of the meter images Da and Db while performing the reduced display of the meter images Da and Db by the normal control means; and display switching means for switching a normal mode in which the display device 10 is allowed to display the meter images by the normal control means and an interruption mode in which the display device 10 is allowed to display the interruption image as well as the meter images by the interruption control means. Then, the interruption control means allows the display device 10 to display the interruption image Dc and the meter images Da and Db in a display configuration that a part of the meter images Da and Db subjected to reduced display is overlapped with the interruption image Dc.

Description

  The present invention relates to a display control device that controls a display device that displays a pointer-type meter image so that an interrupt image having a content different from that of the meter image is displayed simultaneously with the meter image.

  Patent Document 1 discloses a control device that displays on a display device such as a liquid crystal panel a meter image that is a display content indicating a scale image by a rotating pointer image. This control device switches between a normal mode for displaying a meter image and an interrupt mode for displaying an image (interrupt image) taken by a camera together with the meter image. In the interrupt mode, the meter image in the normal mode is reduced and displayed so that the entire meter image does not overlap the interrupt image.

JP 2008-267880 A JP 2010-41241 A

  Here, for example, in a meter image of a display device mounted on a vehicle, it is required to display the physical quantity indicated by the pointer image in a display mode that can be instantaneously read to improve the instantaneous readability of the meter image. Is done. However, in the interrupt mode described in Patent Document 1, the meter image is reduced and displayed, so that the instantaneous readability of the meter image is deteriorated.

  On the other hand, Patent Document 2 discloses that an interrupt image is displayed so as to be superimposed on a central portion of the meter image without reducing the meter image. However, in such a display mode, since the area where the meter image is hidden by the interrupted image is large, the instantaneous readability is deteriorated.

  In the display modes described in Patent Documents 1 and 2, simply by reducing the interrupt image and displaying the meter image larger, the interrupt image cannot be displayed sufficiently large.

  The present invention has been made in view of the above problems, and its purpose is to display a sufficiently large interrupt image together with the meter image, while suppressing the deterioration of the instantaneous readability of the meter image. It is to provide a control device.

  One disclosed invention employs the following technical means to achieve the above object. In addition, the code | symbol in the parenthesis described in the claim shows the correspondence with the specific means as described in embodiment mentioned later as one aspect, Comprising: The technical scope of the disclosed invention is limited Not what you want.

  One of the disclosed inventions is a meter image (Da, Db) indicating a scale image (D1) by a rotating pointer image (D3) in a display control device (20) for controlling display contents of the display device (10). ) On the display device, and the meter image by the normal control device is displayed in a reduced size while the interrupt image (Dc) having a content different from the meter image is displayed on the display device. Interrupt control means (S40) to be displayed; display switching means (S20) for switching between a normal mode displayed by the normal control means and an interrupt mode displayed by the interrupt control means; and the interrupt control The means displays the interrupt image and the meter image in a display mode in which a part of the meter image to be reduced is overlapped with a part of the interrupt image. That.

  Here, in the display mode according to Patent Document 2, since the entire interrupt image is superimposed on the meter image, the instantaneous readability of the meter image is deteriorated, but a part of the interrupt image and a part of the meter image In such a case, the instantaneous readability of the meter image is not significantly reduced. In the above-mentioned invention in view of this point, in the interrupt mode, the display is performed in a display mode in which a part of the meter image to be reduced and a part of the interrupt image are overlapped. Readability can be improved. Nevertheless, since a part of the image is displayed in an overlapping manner, the meter image and the interrupt image can be displayed larger than in the display mode of Patent Document 1 that displays without overlapping. Therefore, it is possible to suppress deterioration of the instantaneous readability of the meter image while displaying a sufficiently large interrupt image together with the meter image.

The front view of the display apparatus which shows the display mode of normal mode in 1st Embodiment of this invention. 6 is a flowchart illustrating a control procedure by the display control device in the first embodiment. The front view of the display apparatus which shows the display mode of interruption mode in 1st Embodiment. The front view of the display apparatus which shows the display mode of interruption mode in 2nd Embodiment of this invention. The front view of the display apparatus which shows the display mode of interruption mode in 3rd Embodiment of this invention.

  Hereinafter, embodiments of a display control device according to the present invention will be described with reference to the drawings. In the following embodiments, the configurations of the parts denoted by the same reference numerals in the drawings are the same or equivalent to each other, and the description thereof is cited.

(First embodiment)
A display device 10 shown in FIG. 1 is mounted on a vehicle and includes a liquid crystal display panel 11. This display device 10 is attached to an instrument panel in a vehicle interior, and it is assumed that the vehicle driver visually recognizes the display device 10 while driving the vehicle.

  The meter ECU 20 (display control device) acquires the physical quantity detected by various sensors mounted on the vehicle, and controls the operation of the display device 10 to display the physical quantity on the display panel 11. Specific examples of the physical quantity include vehicle speed, engine (internal combustion engine) speed, remaining fuel in the fuel tank, engine coolant temperature, and the like. In the example of FIG. 1, a vehicle speed meter image Da that displays the vehicle speed and a tachometer image Db that displays the engine rotation speed are displayed.

  These meter images Da and Db are pointer-type meters that indicate the scale image D1 by the rotating pointer image D3. Specifically, the meter images Da and Db are arranged in such a manner that a plurality of scale images D1 and numerical images D2 are arranged in a circular outline image D4 and the pointer image D3 rotates in the outline image D4. It is displayed. In the normal mode shown in FIG. 1, the outline image D4 is represented by a circle. In addition, the pointer image D3 is expressed in such a manner that the entirety including the rotation center portion D3a of the pointer image D3 is visually recognized at any rotation position.

  The engine speed (more precisely, the number of revolutions of the crankshaft per predetermined time) and the vehicle speed are calculated based on detection signals from a crank angle sensor that detects the rotation angle of the crankshaft and a vehicle speed sensor that detects the rotation angle of the drive wheels. Is done. In the example of FIG. 1, the engine ECU 30 calculates the engine speed and the vehicle speed, and the meter ECU 20 acquires information about the engine speed and the vehicle speed from the engine ECU 30, and both meter images Da based on the acquired information. , Db pointer image D3 is rotated. Incidentally, the engine ECU controls the operation state of the engine by controlling the fuel injection amount and the like based on the accelerator pedal depression amount, the engine speed, the engine load, and the like.

  Further, the meter ECU 20 also controls the display panel 11 to display an interrupt image Dc (see FIG. 3) having contents different from the meter images Da and Db. Specific examples of the interrupt image Dc include map information for guiding the current position and travel route of the vehicle calculated by the navigation device 40, an operation screen of an in-vehicle audio device (not shown), an in-vehicle air conditioner (not shown). 2) operation screens and the like. In short, the interrupt image Dc is an image that displays information selected from among the information related to the plurality of devices 40, and is described as multimedia display (MM display) in FIG.

  The meter ECU 20 has a normal mode in which the meter images Da and Db are displayed on the display panel 11 without displaying the interrupt image Dc, and an interrupt mode in which the interrupt image Dc is displayed on the display panel 11 together with the meter images Da and Db. And the display operation of the display device 10 is switched.

  FIG. 2 is a flowchart showing the control procedure for switching the display as described above, and the process of FIG. 2 is repeatedly executed by the microcomputer (microcomputer) included in the meter ECU 20 at a predetermined time (for example, the calculation cycle of the microcomputer). .

  That is, first, in step S10 in FIG. 2, if it is determined that the ignition switch is turned on (S10: YES), whether or not the vehicle speed is equal to or lower than a predetermined value TH in subsequent step S20 (display switching means). Determine. In the present embodiment, the predetermined value TH is set to zero. That is, it is determined whether or not the vehicle is stopped.

  If the vehicle speed is equal to or lower than the predetermined value TH, that is, the vehicle is stopped (S20: YES), the display panel 11 is displayed in the interrupt mode in the subsequent step S40 (interrupt control means). On the other hand, if the vehicle speed is greater than the predetermined value, that is, if the vehicle is traveling (S20: NO), the display panel 11 is displayed in the normal mode in the subsequent step S30 (normal control means). If the ignition switch is turned off (S10: NO), the display on the display panel 11 is turned off in the subsequent step S50. Note that the determination in step S10 may be replaced with a determination as to whether or not the accessory switch is turned on.

  Hereinafter, the display mode in the interrupt mode will be described with reference to FIG. As illustrated, in the interrupt mode, the interrupt image Dc is interrupted to display the meter images Da and Db and displayed on the display panel 11. At this time, the meter images Da and Db in the interrupt mode are displayed by reducing the meter images Da and Db in the normal mode. In the interrupt mode, the interrupt image Dc and the meter images Da and Db are displayed in a display mode in which a part of the meter images Da and Db to be reduced is overlapped with a part of the interrupt image Dc.

  In the example of FIG. 3, the interrupt image Dc is displayed at the center of the display panel 11, the vehicle speed meter image Da is disposed on the right side of the interrupt image Dc, and the tachometer image Db is disposed on the left side of the interrupt image Dc. , Db is displayed in a display mode in which the interrupt image Dc appears to overlap. Accordingly, a part of the right side (large scale value side) of the vehicle speed meter image Da is hidden behind the interrupt image Dc and cannot be seen, and a part of the left side (small scale value side) of the tachometer image Db (in the figure). (See halftone dot) is hidden behind the interrupt image Dc.

  The reduction magnification of both meter images Da and Db in the interrupt mode is the same in the vertical dimension and the horizontal dimension of the meter. Therefore, the meter images Da and Db in the normal mode and the meter images Da and Db in the interrupt mode have similar shapes. However, since part of the meter images Da and Db are hidden and cannot be seen as described above, the outline image D4 of the meter images Da and Db is circular in the normal mode, whereas in the interrupt mode, the arc shape is formed. It has become. The outline D10 of the interrupt image Dc is a rectangle or a square.

  Of the meter images Da and Db, the center portion D3a of the pointer image D3 is displayed in a manner that does not overlap the interrupt image Dc. Therefore, regardless of the rotation position of the pointer image D3, the central portion D3a of the pointer image D3 is displayed without being hidden by the interrupt image Dc.

  Here, depending on the rotation position of the pointer image D3, the entire pointer image D3 is visually recognized as shown by a one-dot chain line in FIG. 3, or the tip of the pointer image D3 is divided as shown by a solid line in FIG. The display mode is visible so as to be hidden behind the embedded image Dc. Even when the pointer image D3 is hidden and displayed in this manner, the reduction magnification and split of the meter images Da and Db are set so that the length in the longitudinal direction of the pointer image D3 (pointer image length L2) is not less than a predetermined value. The display size of the embedded image Dc is controlled.

  Specifically, the pointer image length L2 when the pointer image D3 is the largest hidden is displayed so as to be at least twice the length (scale length L1) in the longitudinal direction of the pointer image D3 in the scale image D1. . Alternatively, the reduction magnification of the meter images Da and Db and the size of the interrupt image Dc are set so that the pointer image length L2 when the pointer image D3 overlaps the interrupt image Dc is more than half that when the pointer image D3 does not overlap. Is controlled.

  As described above, in the interrupt mode according to the present embodiment, the interrupt image Dc and the meter images Da and Db are displayed in a display mode in which a part of the meter images Da and Db to be reduced is overlapped with a part of the interrupt image Dc. Let Specifically, the contour image D4 of the meter images Da and Db in the interrupt mode is reduced in a similar shape to the contour image D4 in the normal mode, and a part of the contour image D4 is hidden by the interrupt image Dc. It has become.

  Therefore, compared with the case where the entire interrupt image is superimposed on the meter image as in Patent Document 2, only a part of the interrupt image is superimposed, so that the instantaneous readability of the meter images Da and Db can be improved. Still, the meter images Da and Db and the interrupt image Dc can be displayed larger than the case where the interrupt image and the meter image are not overlapped as in Patent Document 1. Therefore, it is possible to suppress deterioration of the instantaneous reading performance of the meter images Da and Db while displaying a sufficiently large interrupt image Dc together with the meter images Da and Db.

  Moreover, since the outline line image D4 in the interrupt mode has a similar shape to the outline line image D4 in the normal mode, the ring-like expression of the meter images Da and Db can be maintained. Therefore, the instantaneous readability in the normal mode can be maintained even in the interrupt mode.

  Furthermore, according to the present embodiment having the characteristics listed below, the functions and effects described below are exhibited by the respective characteristics.

<Feature 1>
Here, in the case of a pointer-type meter image that displays a physical quantity by rotating the pointer image D3, the instantaneous reading is higher than a meter image that digitally displays a numeric image. The reason is that in the case of a pointer-type meter image, the physical quantity can be estimated from the position and angle of the pointer image D3, and the necessity of reading the numeric image D2 is low. In the present embodiment in view of this point, in the interrupt mode, the interrupt center image D3 and the meter images Da and Db are displayed in a display mode in which the rotation center portion D3a of the pointer image D3 does not overlap the interrupt image Dc. It is characterized by. Therefore, since the rotation center portion D3a of the pointer image D3 is always visible regardless of the rotation position of the pointer image D3, it is easy to read the angle change of the rotating pointer image D3. Therefore, it is possible to suppress the instantaneous readability of the meter images Da and Db from being lowered while the meter images Da and Db and the interrupt image Dc are displayed in an overlapping manner.

<Feature 2>
In the interrupt mode, the display mode in which the interrupt image Dc is superimposed on the meter images Da and Db, and the pointer image length L2 is at least twice the scale length L1 regardless of the rotation position of the pointer image D3. An interrupt image Dc and meter images Da and Db are displayed in a display mode. According to this, even when the pointer image D3 is hidden by the interrupt image Dc, the pointer image D3 is displayed with a sufficiently long pointer image length L2, so that the position of the pointer image D3 is easy to read. Therefore, it is possible to suppress the instantaneous readability of the meter images Da and Db from being lowered while the meter images Da and Db and the interrupt image Dc are displayed in an overlapping manner.

<Feature 3>
In the interrupt mode, the display mode is such that the interrupt image Dc overlaps the meter images Da and Db, and the pointer image length L2 when the pointer image D3 overlaps the interrupt image Dc overlaps. The interrupt image Dc and the meter images Da and Db are displayed in a display mode that is more than half of the case where there is not. According to this, even when the pointer image D3 is hidden by the interrupt image Dc, the pointer image D3 is displayed with a sufficiently long pointer image length L2, so that the position of the pointer image D3 is easy to read. Therefore, it is possible to suppress the instantaneous readability of the meter images Da and Db from being lowered while the meter images Da and Db and the interrupt image Dc are displayed in an overlapping manner.

<Feature 4>
Here, during low-speed traveling, the instantaneous readability of the vehicle speed meter image Da and the tachometer image Db is not so required. In view of this point, the present embodiment is characterized in that the display switching means S20 switches to the interrupt mode when the traveling speed of the vehicle is equal to or less than a predetermined value TH (S20: YES). Specifically, when the traveling speed becomes zero, the mode is switched to the interrupt mode. Therefore, it is possible to switch to the interrupt mode according to the degree of request for instantaneous reading.

<Feature 5>
Here, in the vehicle speed meter image Da and the tachometer image Db, the frequency of use in the range on the minimum value side in the range from the minimum value to the maximum value of the scale image D1 is high. Therefore, it is desirable that the left side of the meter image Da, Db is hidden on the left side of the interrupt image Dc. On the other hand, in the vehicle speed meter image Da and the tachometer image Db, the vehicle speed meter image Da is used more frequently. In this embodiment in view of these points, in the interrupt mode, the vehicle speed meter image Da is disposed on the left side of the interrupt image Dc, and the tachometer image Db is disposed on the right side of the interrupt image Dc. Therefore, since the range on the minimum value side with high usage frequency is not hidden from the vehicle speed meter image Da with high usage frequency, a display mode corresponding to the usage frequency can be obtained.

(Second Embodiment)
In the interrupt mode according to the first embodiment, the display mode is such that the interrupt image Dc appears to be superimposed on the meter images Da and Db as shown in FIG. On the other hand, in this embodiment, as shown in FIG. 4, in the interrupt mode, the display mode is such that the meter images Da and Db appear to overlap the interrupt image Dc. That is, a part of the interrupt image Dc (see halftone dots in the figure) is hidden behind the meter images Da and Db and is not visible.

  According to this, since the meter images Da and Db are displayed in their entirety without being hidden even in the interrupt mode, the meter images Da and Db are displayed while the meter images Da and Db and the interrupt image Dc are displayed in an overlapping manner. It is possible to further suppress the instantaneous readability from being lowered. In addition, the contour line image D4 in the interrupt mode has a similar shape to the contour line image D4 in the normal mode, so that the ring-like expression of the meter images Da and Db can be increased, and the instantaneous readability in the normal mode is interrupted. Can be held in mode.

(Third embodiment)
In the first and second embodiments, the reduction magnifications of both meter images Da and Db in the interrupt mode are the same in the vertical and horizontal dimensions of the meter image. In contrast, in the present embodiment, the reduction magnifications of the meter images Da and Db in the interrupt mode are made different between the vertical dimension and the horizontal dimension of the meter image. In the example of FIG. 5, the reduction ratio of the horizontal dimension is set smaller than the reduction ratio of the vertical dimension.

  Therefore, the display areas of the meter images Da and Db and the interrupt image Dc on the display panel 11 can be increased, so that the meter images Da and Db and the interrupt image Dc can be displayed large. Therefore, it is possible to suppress deterioration of the instantaneous reading performance of the meter images Da and Db while displaying a sufficiently large interrupt image Dc together with the meter images Da and Db.

  Further, when the image is reduced by changing the vertical reduction ratio as described above, the meter images Da and Db are displayed in a stereoscopically visible manner, and the three-dimensionally displayed meter images Da and Db are displayed in a tilted manner. By doing so, the meter images Da and Db can have a novel appearance.

(Other embodiments)
The present invention is not limited to the description of the above embodiment, and may be modified as follows. Moreover, you may make it combine the characteristic structure of each embodiment arbitrarily, respectively.

  In the above embodiments, the meter images Da and Db are arranged on the left and right of the interrupt image Dc. However, for example, the meter images Da and Db may be arranged on the upper side or the lower side of the interrupt image Dc. In addition to the vehicle speed meter image Da and the tachometer image Db, a meter image for displaying the above-described remaining fuel amount, engine coolant temperature, and the like may be displayed. For example, in the interrupt mode, a meter image such as the remaining amount of fuel may be displayed on a portion of the display panel 11 that is not used for displaying the meter images Da and Db and the interrupt image Dc.

  In each of the above embodiments, the plurality of meter images Da and Db are reduced and overlapped in the interrupt mode. On the other hand, at least one meter image may be reduced and displayed so as to overlap with the interrupt image Dc. For example, the tachometer image Db with low use frequency may be reduced and overlapped with the interrupt image Dc, and the vehicle speed meter image Da with high use frequency may be displayed without being reduced even in the interrupt mode. Further, the vehicle speed meter image Da may be displayed so as not to overlap. Further, the tachometer image Db may be displayed over the interrupt image Dc, and the vehicle speed meter image Da may be displayed over the interrupt image Dc.

  In each of the above embodiments, the rotation center D3a of the pointer image D3 is displayed so as not to be hidden at all times, but the area overlapping the interrupt image Dc may be enlarged to the rotation center D3a.

  DESCRIPTION OF SYMBOLS 10 ... Display apparatus, 20 ... Meter ECU (display control apparatus), D1 ... Scale image, D3 ... Pointer image, Da ... Vehicle speed meter image, Db ... Tachometer image, S20 ... Display switching means, S30 ... Normal control means, S40 ... Interrupt control means.

Claims (7)

In the display control device (20) that controls the display content of the display device (10),
Normal control means (S30) for causing the display device to display meter images (Da, Db) indicating the scale image (D1) by the rotating pointer image (D3);
Interrupt control means (S40) for causing the display device to display an interrupt image (Dc) having a different content from the meter image while displaying the meter image by the normal control means in a reduced size;
Display switching means (S20) for switching between a normal mode displayed by the normal control means and an interrupt mode displayed by the interrupt control means;
With
The display control device, wherein the interrupt control means displays the interrupt image and the meter image in a display mode in which a part of the meter image to be reduced is overlapped with a part of the interrupt image.   2. The interrupt image and the meter image are displayed in the interrupt mode in a display mode in which the rotation center portion (D3a) of the pointer image does not overlap the interrupt image. Display controller. In the scale image, the length in the longitudinal direction of the pointer image is referred to as a scale length (L1), and the length in the longitudinal direction of the pointer image is referred to as a pointer image length (L2).
In the interrupt mode, a display mode in which the interrupt image appears to overlap the meter image, and a display in which the pointer image length is at least twice the scale length regardless of the rotation position of the pointer image The display control apparatus according to claim 1, wherein the interrupt image and the meter image are displayed in an aspect. In the case where the longitudinal length of the pointer image is referred to as a pointer image length (L2),
In the interrupt mode, the display is such that the interrupt image appears to overlap the meter image, and the pointer image length when the pointer image overlaps the interrupt image does not overlap The display control apparatus according to any one of claims 1 to 3, wherein the interrupt image and the meter image are displayed in a display mode that is half or more of the case.   3. The display control according to claim 1, wherein, in the interrupt mode, the interrupt image and the meter image are displayed in a display mode in which the meter image appears to overlap the interrupt image. apparatus.   6. The display control apparatus according to claim 1, wherein in the interrupt mode, the reduction magnification of the meter image is made different between a vertical dimension and a horizontal dimension of the meter image. The display device is mounted on a vehicle,
The display control device according to claim 1, wherein the display switching unit switches to the interrupt mode when a traveling speed of the vehicle is a predetermined value (TH) or less.

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