JP5245625B2 - Vehicle display device - Google Patents

Description

  The present invention relates to a vehicular display device including an image display monitor.

  2. Description of the Related Art Conventionally, a vehicular display device that displays a plurality of types of images on a screen of an image display monitor is known.

For example, in the vehicle display device disclosed in Patent Document 1, an external image obtained by capturing the external environment of the vehicle is displayed on the screen of the image display monitor together with an information image instructing a state value of the vehicle necessary for driving the vehicle. I am doing so. According to such a vehicle display device, the vehicle occupant can recognize not only the state value of the vehicle but also the presence of a person who needs attention in the outside world of the vehicle by visually recognizing the information image and the outside world image. It is possible to perform an operation for ensuring driving safety.
JP 2008-139390 A

  In the vehicle display device disclosed in Patent Document 1, the information image and the external image are displayed side by side without interfering with each other, thereby preventing the display purpose of each image from being impaired. For this reason, there is an increased dead space in which a visible image is not displayed on the screen of the image display monitor, and it is difficult to display an external image sufficiently large in a screen size determined according to specifications. .

  Therefore, when it is assumed that the information image 1016 is displayed in a form surrounding the external image 1012 as schematically shown in FIG. 10, the dead space on the screen 1011 of the image display monitor 1010 is reduced. However, even in this display form, the information image 1016 in which scales and characters are arranged on an arc curve is displayed in a curved shape as a whole, whereas the external image 1012 surrounded by the information image 1016 is rectangular. Since the images are displayed, the images 1012 and 1016 cannot be brought closer than the necessary clearance 1017 between them. Accordingly, there is a demand for a vehicle display device that can display the external image 1012 in a larger screen size and improve the driving safety of the vehicle.

  The present invention has been made in view of these problems, and an object thereof is to provide a vehicle display device that improves the driving safety of the vehicle.

According to the first aspect of the present invention, an image display monitor for displaying an information image necessary for driving the vehicle in a form surrounding an external image formed by imaging the external environment of the vehicle on the screen, and a mask range for masking the external image. And a range setting means for setting a display range for displaying an outside world image outside the mask range, and a display control means for controlling the display on the screen of the image display monitor, wherein the information image is superimposed on the information image superimposed within the mask range. Display control means for displaying on the screen a composite image along with an external image within the display range, and the image display monitor is an information image in which indicators for instructing vehicle state values are arranged on a curve The display control means is a composite image in which the external image in the display range is aligned with the index, and the external image in the display range is displayed on the outer periphery side by the information image in which the index is arranged on the circular arc curve as the curve. La composite image enclosed, characterized in that to be displayed on the screen.

  According to such an invention, since the information image necessary for driving the vehicle is displayed on the screen of the image display monitor in a form surrounding the external image formed by imaging the external environment of the vehicle, the display of the image that can be visually recognized on the screen is performed. Less dead space. In addition, the external image and the information image are displayed on the screen by combining the information image superimposed in the mask range that masks the external image with the external image in the display range along the screen by controlling the image display monitor. This is realized by displaying. Therefore, the display size of the external image is enlarged to the information image side while ensuring the necessary clearance between the information image in the mask range in the external image in the display range and the information image in the mask range. Can do. According to the above, even on a screen whose size is determined according to the specifications of the image display monitor, it is possible to display a large external image along the information image and contribute to improvement in driving safety of the vehicle.

Further, according to the first aspect of the present invention, the external image within the display range is displayed along the information image in which the index for indicating the vehicle state value is arranged on the curve. . Therefore, the display size of the external image is set to the display size of the information image while ensuring a necessary clearance between the information image that is curved as a whole by the arrangement of the indicators and the external image within the display range along the information image. Can be expanded to the side. Therefore, it is possible to contribute to improvement of driving safety by displaying a large external image.

According to the second aspect of the present invention, the range setting means sets a mask range for masking the corners of the rectangular external image. According to this, the mask range in which the information image is superimposed is a range in which a corner portion where relatively little information is required is masked in the rectangular external image, and thus driving safety can be improved by displaying the external image. The situation that is obstructed by setting the mask range can be suppressed.

According to a third aspect of the present invention, the range setting means sets a mask range for masking the outer edge portion of the rectangular external image. According to this, the mask range in which the information image is superimposed is a range in which a relatively small amount of information necessary for the rectangular external image is masked, and thus the driving safety can be improved by displaying the external image. The situation that is obstructed by setting the mask range can be suppressed.

According to a fourth aspect of the present invention, the range setting means sets a mask range and a display range for an external image formed by capturing the external environment of the vehicle with a night vision camera. According to this, even when a vehicle that needs attention to the outside person or the like is traveling at night or in a dark place, the outside image in the display range is displayed largely along the information image superimposed on the mask range. Thus, it is possible to contribute to the improvement of driving safety.

  Hereinafter, a plurality of embodiments of the present invention will be described with reference to the drawings. In addition, the overlapping description is abbreviate | omitted by attaching | subjecting the same code | symbol to the corresponding component in each embodiment.

(First embodiment)
1 and 2 show a schematic configuration of the vehicular display device 1 according to the first embodiment of the present invention, and FIG. 3 shows an electric circuit configuration of the device 1.

  As shown in FIGS. 1 to 3, the vehicle display device 1 functions as a combination meter, and includes an image display monitor 10, a display switch 20, an external camera 30, an image control circuit 40, a light source 50, a dimming switch 60, It is composed of a drive control circuit 70 and the like.

  The image display monitor 10 is installed in front of the driver's seat so that the screen 11 faces the driver's seat of the vehicle. Here, the image display monitor 10 of the present embodiment is a dot matrix type TFT transmissive liquid crystal monitor having a plurality of pixels arranged in a matrix, and realizes full-color image display by driving these pixels. To do. Here, the pixels of the image display monitor 10 according to the present embodiment include three sub-pixels R, G, and B in which red, green, and blue color filters are respectively arranged, and control the drive of the image display monitor 10. The drive control circuit 70 is provided with a display control signal for selecting and instructing the gradation value for each of the sub-pixels for each pixel.

  As shown in FIGS. 1 and 4, the image display monitor 10 includes an external display pixel area 14 configured to display an external image 12 and an emphasized image 13 including a plurality of pixels, and displays an information image 16 including a plurality of pixels. And an information display pixel area 18 to be displayed.

  Specifically, the external display pixel area 14 is set at a substantially central portion on the screen 11 of the image display monitor 10 and displays the external image 12 and the emphasized image 13 by driving the constituent pixels. The external image 12 is an image (that is, a moving image here) continuously obtained by photographing the external environment of the vehicle, and is displayed as shown in FIGS. 1 and 4 when the display switch 20 described later is turned on. When the switch 20 is turned off, an apparent non-display state is obtained as shown in FIG. Here, the external image 12 of the present embodiment is an achromatic image obtained by capturing an area in front of the vehicle where the visible light of the vehicle headlight does not reach in the external environment, that is, a night view image. Therefore, in the present embodiment, in a situation where the ambient light illuminance is insufficient, such as when the vehicle travels at night or in a dark place, such as a pedestrian that is a cautionary object that needs attention to ensure driving safety of the vehicle. When a human is present in the front area of the vehicle, the external image 12 includes an image 12a of the human (hereinafter, referred to as “attention object image 12a”) as shown in FIG.

  In particular, with respect to the external image 12 of the present embodiment, as shown in FIG. 6, a part of the original image 120 obtained by imaging the external environment of the vehicle by the external camera 30 described in detail later is displayed in the external display pixel region 14. It is displayed. Specifically, the upper two corners 120a in the original image 120 of the external image 12 acquired in a rectangular shape are masked in a chamfered shape by setting the mask range 180 shown by hatching in FIG. ing. Each of these mask ranges 180 overlaps with the background portion of the information image 16 in the information display pixel area 18 and is not displayed apparently (see FIG. 1). Then, the remaining portion outside the mask range 180 in the original image 120 of the external image 12 is set as the display range 140, so that the remaining portion is displayed in the entire external display pixel region 14.

  As shown in FIG. 4, the enhanced image 13 is an image that is superimposed on the external image 12 in order to enhance the attention object image 12 a in the external image 12 within the display range 140. The emphasized image 13 is displayed together with the external image 12 when the attention object exists in front of the vehicle when the display switch 20 is turned on. Further, when the attention object does not exist in front of the vehicle even when the display switch 20 is turned on, the emphasized image 13 is not displayed as shown in FIG. 1, whereby only the external image 12 is displayed in the external display pixel region 14. Is displayed. Furthermore, the emphasized image 13 is not displayed together with the external image 12 as shown in FIG. 5 when the display switch 20 is turned off. In the present embodiment, a frame image surrounding the attention object image 12a in a rectangular frame shape as shown in FIG. 4 is adopted as the emphasized image 13, and a highly visible color (for example, the achromatic image 12) (for example, (Red).

  The information display pixel area 18 is set in a frame shape surrounding the external display pixel area 14 on the screen 11 of the image display monitor 10, and the information image 16 is displayed at a predetermined position of the frame shape by driving the constituent pixels. The information image 16 is an image for transmitting information necessary for driving the vehicle to the vehicle occupant, and is always displayed as shown in FIGS. Here, as the information image 16 of the present embodiment, there are three types: a vehicle speed instruction image 160 that indicates the vehicle speed, a fuel remaining amount instruction image 162 that indicates the remaining fuel amount, and a water temperature instruction image 164 that indicates the cooling water temperature. It is prepared.

  Specifically, the vehicle speed instruction image 160 is displayed on the screen 11 of the image display monitor 10 so as to surround a range of the external image 12 that is less than one round in the circumferential direction from the outer peripheral side. As shown in FIGS. 1 and 6, the vehicle speed instruction image 160 includes a plurality of scales 160a arranged on the arc curve Ca and a plurality of characters (here, numbers) 160b arranged near the predetermined scale 160a and arranged on the arc curve Cb. And a pointer 160c that is rotated according to the vehicle speed. As a result, the vehicle speed instruction image 160 as a whole has an arch shape that curves upward toward the screen 11. In this embodiment, in particular, a predetermined character 160b is superimposed on each mask range 180 set in the original image 120 of the external image 12, and the external image 12 in the display range 140 is an array of scales 160a and characters 160b ( That is, the vehicle speed instruction image 160 is displayed in the information display pixel area 18 along the circular arc curve Ca, Cb). In the present embodiment, when it is necessary to indicate the vicinity of the character 160b to be superimposed in the mask range 180 by the pointer 160c, the vehicle speed instruction image 160 is displayed so that the pointer 160c is also superimposed on the mask range 180. It is.

  As shown in FIG. 1, the remaining fuel amount instruction image 162 is displayed on the right end of the screen 11 on the outer periphery side of the vehicle speed instruction image 160 on the screen 11. The fuel remaining amount instruction image 162 is rotated and displayed according to a plurality of scales 162a arranged on an arc curve, a plurality of characters (here alphabets) 162b arranged in the vicinity of the predetermined scale 162a, and the fuel remaining amount. The pointer 162c is configured as a whole and has an arch shape that curves convexly toward the right side of the screen 11. The water temperature instruction image 164 is displayed at the left end of the screen 11 on the outer side of the vehicle speed instruction image 160 on the screen 11. The water temperature instruction image 164 includes a plurality of scales 164a arranged on an arc curve, a plurality of characters (here, alphabets) 164b arranged in the vicinity of the predetermined scale 164a, and a pointer 164c that is rotated according to the cooling water temperature. The arch shape which curves to the left of the screen 11 as a whole is exhibited.

  The display switch 20 shown in FIG. 3 is installed, for example, around the image display monitor 10 in the vehicle, and is turned on / off to permit the display of the external image 12 on the image display monitor 10. That is, the occupant can input a permission command or a prohibition command for displaying the external image 12 by turning the display switch 20 on or off. The display switch 20 generates and outputs a display permission / rejection signal so as to indicate the command content related to the display of the external image 12.

  The external camera 30 captures a front area of the external environment of the vehicle with an image sensor such as a CCD. Here, the external camera 30 of the present embodiment is a night-vision camera that can shoot even in a situation where the illuminance of external light is insufficient, such as when the vehicle travels at night or in a dark place. As such an external camera 30, for example, it is installed on a front bumper or a front grill of a vehicle and irradiates infrared light forward from a dedicated projector or a vehicle headlight, and reflected light with respect to the irradiated light is received by an imaging device. Then, an infrared camera or the like that converts it into an image signal is employed.

  The image control circuit 40 shown in FIG. 2 is formed of a microcomputer, and is installed obliquely behind the image display monitor 10 in the vehicle. As shown in FIG. 3, the image control circuit 40 is electrically connected to the state value sensor unit 42 and has an image memory 44. Here, the state value sensor unit 42 of the present embodiment detects the vehicle state value displayed as the information image 16 by the image display monitor 10, that is, the vehicle speed, the remaining amount of fuel, the coolant temperature, and the like, and represents the detection results. The signal is output to the image control circuit 40. The image memory 44 is composed of an EEPROM, and the instruction images 160, 162, and 164 as the emphasized image 13 and the information image 16 are stored in advance.

  The image control circuit 40 is also electrically connected to the display switch 20 and the external camera 30. When the display permission signal of the output from the switch 20 indicates the display permission command of the external image 12 when the display switch 20 is turned on, the image control circuit 40 is connected to the external image 12 based on the image signal from the external camera 30. An original image 120 having a predetermined frame size is acquired at a predetermined frame rate. Further, the image control circuit 40 sets the mask range 180 and the display range 140 for the acquired original image 120, and then detects the image 12a of the attention object in the external image 12 reflected in the display range 140. For example, image recognition processing such as pattern recognition is performed. At this time, the setting of the ranges 140 and 180 is performed by replacing the gradation value of the sub-pixel corresponding to the pixel coordinate that becomes the mask range 180 in the original image 120 with the actual value of the background color of the information display pixel region 18. Done. Here, the pixel coordinates of the mask range 180 that are set in advance according to the frame size of the original image 120 and stored in the image memory 44 are used.

  When the image 12a of the attention object is not detected by the image recognition process described above, the image control circuit 40 performs display control for displaying the first composite image 15 formed by combining the images 12 and 16 as shown in FIG. A signal is generated. Specifically, the image control circuit 40 reads each instruction image 160, 162, 164 as the information image 16 from the image memory 44. Furthermore, the image control circuit 40 combines the read instruction images 160, 162, 164 with the external image 12 in the display range 140, and superimposes at least the characters 160 b of the vehicle speed instruction image 160 on each mask range 180. A display control signal is generated. The superimposition at this time is performed by replacing the gradation value of the sub-pixel corresponding to the pixel coordinate for displaying the superimposition target (such as the character 160b) in the mask range 180 with the actual value of the display color of the superimposition target. Is called.

  On the other hand, when the image 12a of the attention object is detected by the image recognition process described above, the image control circuit 40 displays the second composite image 19 formed by combining the images 12, 13, 16 as shown in FIG. A display control signal for generating the display control signal is generated. Specifically, the image control circuit 40 combines the instruction images 160, 162, and 164 with the external image 12 in the display range 140 in the same manner as when the image 12a is not detected, so that the enhanced image 13 is also combined. A display control signal is generated. For the synthesis at this time, the pixel coordinates on which the emphasized image 13 is superimposed on the external image 12 within the display range 140 are calculated from the pixel coordinates of the image 12a, and the gradation values of the sub-pixels corresponding to the former pixel coordinates are determined as the emphasized image 13. This is done by substituting the actual value of the display color.

  On the other hand, when the display permission signal output from the switch 20 indicates the display prohibition command for the external image 12 when the display switch 20 is turned off, the image control circuit 40 does not acquire the original image 120 of the external image 12, As shown in FIG. 5, the display control signal is generated so that only the instruction images 160, 162, and 164 as the information image 16 are displayed on the screen 11.

  As shown in FIGS. 2 and 3, the light source 50 includes a light emitting diode 52 and a diffusion plate 54. The light-emitting diode 52 is a chip type and is installed obliquely behind the image display monitor 10 in the vehicle. The light emitting diode 52 is driven by energization to emit light. The diffusing plate 54 is formed of a light transmissive resin in a flat plate shape, and is disposed behind the image display monitor 10 in parallel with the monitor 10. The diffusing plate 54 diffuses incident light from the adjacent light emitting diodes 52 and emits the light from the light emitting surface 56 on the image display monitor 10 side, so that the light emission luminance on the light emitting surface 56 is substantially uniform over the entire area. To. As described above, the light source 50 emits a display image on the image display monitor 10 as a backlight that transmits and illuminates the entire image display monitor 10 from behind by the light from the light emitting surface 56.

  The dimming switch 60 shown in FIG. 3 is installed in the vehicle, for example, around the image display monitor 10 and is variably operated to adjust the light emission luminance on the light emitting surface 56 of the light source 50. That is, the occupant can input an adjustment value related to the light emission luminance of the light source 50 by adjusting the operation position of the dimming switch 60. The dimming switch 60 generates and outputs a dimming command signal so as to represent an adjustment value related to the light emission luminance of the light source 50.

  The drive control circuit 70 shown in FIG. 2 includes a microcomputer, and is installed obliquely behind the image display monitor 10 in the vehicle. As shown in FIG. 3, the drive control circuit 70 is electrically connected to the image display monitor 10, the image control circuit 40, the light emitting diode 52 of the light source 50, and the dimming switch 60. The drive control circuit 70 controls the driving of each component pixel in the image display monitor 10 according to the display control signal output from the image control circuit 40, and the light emitting diode 52 in the light source 50 according to the dimming command signal output from the dimming switch 60. The light emission drive is controlled. Therefore, in this embodiment, in particular, the image control circuit 40 generates a display control signal and outputs the display control signal to the drive control circuit 70, whereby each component pixel of the image display monitor 10 is driven and controlled according to the signal. Image display is realized. Therefore, hereinafter, “the image control circuit 40 generates a display control signal and outputs it to the drive control circuit 70” will be described as “controlling the image display monitor 10”.

  Next, a control flow executed by the image control circuit 40 of the first embodiment will be described with reference to FIG. This control flow starts when the ignition switch of the vehicle is turned on.

  First, in step S101, it is determined whether the display permission signal from the display switch 20 represents a display permission command for the external image 12. As a result, when an affirmative determination is made, the process proceeds to step S102, and the original image 120 of the external image 12 is acquired. In the subsequent step S103, the mask range 180 and the display range 140 are set for the original image 120 of the external image 12, and the image 12a of the attention object is then extracted from the external image 12 in the display range 140 in the subsequent step S104. It is determined whether or not it has been detected.

  If a negative determination is made in step S104, the process proceeds to step S105. In step S105, the information image 16 is superimposed on the mask range 180, and the scale image 160a and the character 160b of the vehicle speed instruction image 160 and the external image 12 in the display range 140 of the information image 16 are aligned. 15 is displayed on the screen 11 under the control of the image display monitor 10. On the other hand, if a positive determination is made in step S104, the process proceeds to step S106. In this step S106, the images 13 and 16 are superimposed in the respective ranges 140 and 180, and the scale 160a and the character 160b of the vehicle speed instruction image 160 and the external image 12 in the range 140 of the information image 16 are formed along the first. The binary composite image 19 is displayed on the screen 11 by the control of the image display monitor 10.

  Up to this point, the case has been described in which an affirmative determination is made in step S101. However, if a negative determination is made, the process proceeds to step S107, and only the information image 16 is displayed on the screen 11 under the control of the image display monitor 10. Let

  Note that after execution of steps S105, S106, and S107, the process proceeds to step S108 to determine whether or not the ignition switch is turned off. As a result, when an affirmative determination is made, the present control flow is terminated, whereas when a negative determination is made, the process returns to step S101 and the present control flow is continued.

  According to the first embodiment described above, since the information image 16 is displayed in a form surrounding the external image 12 when the display switch 20 is turned on, on the screen 11 of the image display monitor 10, the visible image 12, Dead space as a region where 16 is not displayed is reduced. Moreover, the images 12 and 16 are displayed by displaying the composite images 15 and 19 in which the vehicle speed instruction image 160 as the information image 16 superimposed in each mask range 180 is aligned with the external image 12 outside the range 180. Realized simultaneously. Therefore, as shown in FIG. 1, the display size of the external image 12 is changed to the information image 16 while ensuring the necessary clearance 17 between the curved arch-shaped information image 16 as a whole and the external image 12 along the information image 16. It can be expanded to 16 sides. Therefore, even on the screen 11 whose size is determined according to the specifications of the image display monitor 10, a large external image 12 is displayed when the vehicle travels at night or when it travels in the dark, thereby contributing to improvement in driving safety of the vehicle. can do. In addition, since the external image 12 is displayed without interference along the vehicle speed instruction image 160 of the information image 16 that requires particularly quick reading, it is possible to meet the request.

  In addition, each mask range 180 for superimposing the information image 16 on the original image 120 of the external image 12 has a chamfered corner 120a in the rectangular original image 120 with less information necessary for detection of a target object. This is the masked area. Therefore, it is possible to suppress a situation in which the driving safety improvement effect due to the display of the external image 12 is hindered by the setting of each mask range 180.

  In the first embodiment, the image control circuit 40 corresponds to a “range setting unit”, and the image control circuit 40 and the drive control circuit 70 together constitute a “display control unit”, and the scale of the vehicle speed instruction image 160. 160a and characters 160b correspond to “index”.

(Second embodiment)
As shown in FIG. 8, the second embodiment of the present invention is a modification of the first embodiment. In the second embodiment, the upper two corners 120a of the rectangular original image 120 are masked in a curved shape by setting the mask range 2180, respectively. As a result, the character 160 b of the vehicle speed instruction image 160 as the information image 16 is displayed superimposed on the mask range 2180, and the external image 2012 is displayed in the display range 2140 outside the mask range 2180. It is supposed to be displayed along.

  In such a second embodiment as well, the display size of the external image 2012 is set while ensuring a necessary clearance between the curved arch-shaped information image 16 as a whole and the external image 2012 along the information image 16. The information image 16 can be enlarged. Therefore, it can contribute to the improvement of the driving safety of the vehicle.

  In addition, each mask range 2180 of the second embodiment is a range in which the corner 120a having a small amount of information necessary for detecting the attention object in the rectangular original image 120 is masked in a curved R shape. Therefore, the situation in which the setting of each mask range 2180 hinders the effect of improving driving safety can be suppressed.

(Third embodiment)
As shown in FIG. 9, the third embodiment of the present invention is a modification of the first embodiment. In the third embodiment, all the corners 120a and 3120a and the three outer edge portions 3120b formed across the corners 120a in the rectangular original image 120 have an inner circular arc shape by setting the mask range 3180. It is masked in an arch shape. As a result, the predetermined scale 160 a and the characters 160 b of the vehicle speed instruction image 160 as the information image 16 are displayed so as to overlap the mask range 3180, and the external image 3012 is displayed in the display range 3140 outside the mask range 3180. It is displayed along the information image 16 inside.

  In such a third embodiment as well, the display size of the external image 3012 is set while ensuring a necessary clearance between the curved arch-shaped information image 16 and the external image 3012 along the information image 16 as a whole. The information image 16 can be enlarged. Therefore, it can contribute to the improvement of the driving safety of the vehicle.

  Further, the mask range 3180 of the third embodiment is a range in which the corners 120a and 3120a and the outer edge 3120b, which have little information necessary for detecting the attention object, are masked in an arch shape in the rectangular original image 120. Yes. Therefore, the situation in which the setting of the mask range 3180 hinders the effect of improving the driving safety can be suppressed.

(Other embodiments)
Although a plurality of embodiments of the present invention have been described above, the present invention is not construed as being limited to these embodiments, and can be applied to various embodiments without departing from the scope of the present invention. .

  Specifically, in the first to third embodiments, the information image 16 surrounding the external images 12, 2012, and 3012 may be an instruction image other than the vehicle speed instruction image 160, an abnormal fuel remaining amount, or cooling. A warning image may be used to warn of an abnormality such as a water temperature rise abnormality. In the first to third embodiments, the information image 16 (the vehicle speed instruction image 160) is displayed on the screen 11 of the image display monitor 10 in such a form that the entire circumferential direction of the external images 12, 2012, 3012 is surrounded from the outer peripheral side. May be.

  In 1st-3rd embodiment, you may employ | adopt as the external image 12 the image formed by imaging the external field of a vehicle with the visible camera using the reflected light of visible light. In the first and second embodiments, the mask region 180 may be set in the lower corner 3120a of the original image 120 of the external images 12 and 2012 according to the third embodiment.

  In the first to third embodiments, in addition to the transmissive liquid crystal monitor, for example, a reflective liquid crystal monitor, an EL (Electro-Luminescence) monitor, or the like may be employed as the image display monitor 10. In addition to the vehicle display device 1 that functions as a combination meter, the present invention can be applied to, for example, a vehicle display device as a head-up display that displays a display image of an image display monitor on a combiner. is there.

It is a front view which shows schematic structure of the display apparatus for vehicles by 1st embodiment of this invention, and the display state of a liquid crystal monitor. It is a figure which shows schematic structure of the display apparatus for vehicles by 1st embodiment of this invention, Comprising: It is the II-II sectional view taken on the line of FIG. It is a block diagram which shows the electric circuit structure of the display apparatus for vehicles by 1st embodiment of this invention. It is a front view which shows the display state of the liquid crystal monitor of the display apparatus for vehicles by 1st embodiment of this invention. It is a front view which shows the display state of the liquid crystal monitor of the display apparatus for vehicles by 1st embodiment of this invention. It is a schematic diagram for demonstrating the characteristic part of the display apparatus for vehicles by 1st embodiment of this invention. It is a flowchart which shows the control flow of the display apparatus for vehicles by 1st embodiment of this invention. It is a schematic diagram for demonstrating the characteristic part of the display apparatus for vehicles by 2nd embodiment of this invention. It is a schematic diagram for demonstrating the characteristic part of the display apparatus for vehicles by 3rd embodiment of this invention. It is a schematic diagram for demonstrating the subject solved by this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Display apparatus for vehicles, 10 Image display monitor, 11 screens, 12, 2012, 3012 External image, 12a Image of attention object, 13 Highlight image, 14 External display pixel area, 15 1st synthesized image, 16 Information image, 17 Clearance, 18 information display pixel area, 19 second composite image, 20 display switch, 30 external camera, 40 image control circuit (range setting means / display control means), 42 state value sensor unit, 44 image memory, 50 light source, 60 Dimming switch, 70 Drive control circuit (display control means), 120 original image, 120a, 3120a corner, 140, 2140, 3140 display range, 160 vehicle speed indication image, 160a scale (index), 160b character (index), 160c Pointer, 162 Fuel remaining amount instruction image, 164 Water temperature instruction image, 180, 2180, 3 180 Mask range, 3120b Outer edge, Ca, Cb Arc curve

Claims (4)

On the screen, an image display monitor that displays an information image necessary for driving the vehicle in a form surrounding an external image formed by imaging the external environment of the vehicle;
Range setting means for setting a mask range for masking the external image and a display range for displaying the external image outside the mask range;
Display control means for controlling display on the screen of the image display monitor, wherein a composite image along the external image in the display range is displayed on the screen with respect to the information image superimposed in the mask range. Display control means for displaying;
Equipped with a,
The image display monitor displays the information image in which indicators for indicating the state value of the vehicle are arranged on a curve,
The display control means is the composite image in which the external image in the display range is aligned with the indicators, and the external world in the display range by the information image in which the indicators are arranged on an arc curve as the curve. A display device for a vehicle , wherein the composite image in which an image is surrounded from an outer peripheral side is displayed on the screen . The vehicle display device according to claim 1, wherein the range setting unit sets the mask range for masking a corner portion of the rectangular external image. It said range setting means, the display device for a vehicle according to claim 1 or 2, characterized in that setting the mask range to mask the outer edge of the rectangular of the external image. The said range setting means sets the said mask range and the said display range with respect to the said external image formed by imaging the external environment of the said vehicle with a night vision camera, The any one of Claims 1-3 characterized by the above-mentioned. The vehicle display device according to the item.

Images