JP2015054599A - Display device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent display contents from becoming complexed when a plurality of pieces of information are displayed in a superposed manner.SOLUTION: A display device 10 for a vehicle includes a real image display device 11 which displays a real image at a predetermined position in a predetermined direction P in front of a vehicle which a driver of the vehicle 1 can view, a first virtual image display device 12 which displays a first virtual image Aa at a first position different from the predetermined position in the predetermined direction P, and a second virtual image display device 13 which displays a second virtual image Ba at a position which is different from the predetermined position in the predetermined direction P. The real image display device 11, the first virtual image display device 12, and the second virtual image display device 13 display, in a stacking manner, the real image, the first virtual image Aa, and the second virtual image Ba in the predetermined direction P.

Description

  The present invention relates to a vehicle display device.

  2. Description of the Related Art Conventionally, a mechanical meter has a mechanical meter having a linear mark (pointer) that emits light on a transparent disk that is driven to rotate, and a liquid crystal display that is disposed behind the transparent disk and is visible through the transparent disk. There is known a display instrument that performs multiple display so that the scale design of a liquid crystal display is indicated by a linear mark of the meter (for example, see Patent Document 1).

Japanese Patent Laid-Open No. 11-245687

By the way, the display instrument according to the above prior art is configured so that the linear mark provided on the surface of the transparent disk and the scale design of the liquid crystal display disposed behind the transparent disk are displayed in a superimposed manner. ing.
However, only one layer of information on the transparent disk is displayed superimposed on the liquid crystal display, and there is a problem that the display content becomes complicated when a plurality of pieces of information having different priorities are displayed in a superimposed manner.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a vehicular display device capable of preventing display contents from becoming complicated when a plurality of pieces of information are displayed in a superimposed manner.

In order to solve the above problems and achieve the object, the present invention employs the following aspects.
(1) A vehicle display device according to an aspect of the present invention is a real image display device that displays a real image at a predetermined position in a predetermined direction in front of the vehicle that can be visually recognized by the driver of the vehicle (for example, the real image display device in the embodiment). 11), a first virtual image display device that displays a first virtual image at a first position different from the predetermined position in the predetermined direction (for example, the first virtual image display device 12 in the embodiment), and the first virtual image display device in the predetermined direction A second virtual image display device (for example, the second virtual image display device 13 in the embodiment) that displays a second virtual image at a second position different from the predetermined position, and the real image display device and the first virtual image display device And the second virtual image display device displays the real image, the first virtual image, and the second virtual image in a stacked manner in the predetermined direction.

(2) In the vehicle display device according to (1), the real image display device includes a real image liquid crystal display device (for example, the liquid crystal display (C) 11a in the embodiment), and the first virtual image display. The device and the second virtual image display device include a common mirror member (for example, the mirror member 15 in the embodiment) and a first liquid crystal display device (for example, a pair of the embodiments in the embodiment) having a different distance to the mirror member. A first virtual image liquid crystal display (A, A) 12a, 12a) and a second liquid crystal display device (for example, the second virtual image liquid crystal display (B) 13a in the embodiment), wherein the mirror member is the first Light incident on the surface from the liquid crystal display device and the second liquid crystal display device is reflected toward the position of the eyes of the driver, and light incident on the back surface from the driver back side in the predetermined direction is directed toward the driver front side. Transparent It may be.

(3) In the vehicle display device described in (2) above, the first liquid crystal display device is 1 at a position that is substantially line symmetrical with respect to the left and right around a steering column (for example, the steering column 3 in the embodiment). A pair of liquid crystal display devices (for example, a pair of first virtual image liquid crystal displays (A, A) 12a, 12a in the embodiment) may be provided.

(4) In the vehicle display device according to the above (2) or (3), the liquid crystal display device for the real image is closer to the driver than the mirror member in the predetermined direction, the first virtual image, and the first It may be arranged closer to the driver than the two virtual images.

  According to the vehicle display device according to the aspect described in (1) above, a plurality of pieces of information can be displayed in a three-dimensional manner in accordance with the priority order, and the display contents can be prevented from becoming complicated. it can. Further, since the display of the virtual image is combined with the display of the real image, it is possible to perform a remote display without requiring an actual spatial distance, and it is possible to prevent the apparatus from becoming large. Furthermore, since the virtual image can be displayed farther than the position where the real image can be displayed, it is possible to reduce the focus difference and the line-of-sight movement between the front field of view and the virtual image. Furthermore, by displaying the virtual image far away, it is possible to make the virtual image appear substantial by bringing it closer to the external field of view, and by displaying the real image in front of the driver rather than the virtual image, it can be shown and displayed. Various display modes can be realized in a space-saving manner according to the priority of information.

  Furthermore, in the case of (2) above, the first virtual image and the second virtual image are displayed at different first and second positions by providing the first liquid crystal display device and the second liquid crystal display device having different distances to the common mirror member. It is possible to display a plurality of virtual images three-dimensionally while preventing the apparatus configuration and arrangement from becoming complicated.

  Furthermore, in the case of (3) above, the device can be centrally arranged in front of the driver's seat, and an increase in the space required for mounting the device can be prevented.

  Furthermore, in the case of (4) above, the real image display device can be prevented from interfering with the optical system of the first virtual image display device and the second virtual image display device, and a clear first virtual image and second virtual image can be obtained. it can.

It is a lineblock diagram of the display for vehicles concerning an embodiment of the present invention, and is a figure showing the position of the 1st virtual image and the 2nd virtual image visually recognized by a driver. It is a perspective view of the display apparatus for vehicles concerning the embodiment of the present invention, and is a figure showing the position of the 1st virtual image and the 2nd virtual image visually recognized by a driver. It is a figure which shows an example of the operation state of the display apparatus for vehicles which concerns on embodiment of this invention, FIG. 3 (A) is sectional drawing, FIG.3 (B) is a perspective view. It is a figure which shows an example of the operation state of the display apparatus for vehicles which concerns on embodiment of this invention, FIG. 4 (A) is sectional drawing, FIG.4 (B) is a perspective view. It is a figure which shows an example of the operation state of the display apparatus for vehicles which concerns on embodiment of this invention, FIG. 5 (A) is sectional drawing, FIG.5 (B) is a perspective view.

Hereinafter, a display device for a vehicle according to an embodiment of the present invention will be described with reference to the accompanying drawings.
As shown in FIGS. 1 and 2, the vehicle display device 10 according to the present embodiment is installed on an instrument panel 2 provided in front of a driver's seat (not shown) of the vehicle 1. The vehicle display device 10 includes a real image display device 11, a first virtual image display device 12, a second virtual image display device 13, and a control device 14.

The real image display device 11 includes a liquid crystal display (C) 11a made of, for example, TFT (thin film transistor) liquid crystal. The liquid crystal display (C) 11a is disposed so as to face the front of the driver at a predetermined position in a predetermined direction P in front of the vehicle that is visible to the driver seated on the driver's seat. The real image display device 11 displays, for example, alert information, alarm information, entertainment-related information, and the like on the liquid crystal display (C) 11a as real images.
The liquid crystal display (C) 11a, for example, does not allow the background to be seen through in order to prevent the driver from visually recognizing the portion on the back side as viewed from the driver, and in addition to ensure the light shielding property to the display area (that is, (Non-transparent) liquid crystal.
The TFT liquid crystal may be a liquid crystal with a transparent background.

  The first virtual image display device 12 and the second virtual image display device 13 include a common mirror member 15 such as a half mirror. The mirror member 15 is located behind the mirror member 15 in the predetermined direction P at a position closer to the driver than the liquid crystal display (C) 11a when viewed from the driver seated on the driver seat. Are arranged as follows. The mirror member 15 is provided with a surface 15A that is inclined so that the upper part protrudes toward the driver's near side rather than the lower part. The mirror member 15 reflects light incident on the front surface 15A from the front side of the driver and transmits light incident on the back surface 15B from the rear side of the driver toward the front side of the driver.

The first virtual image display device 12 includes a pair of first virtual image liquid crystal displays (A, A) 12a and 12a made of, for example, TFT (thin film transistor) liquid crystal. The pair of first virtual image liquid crystal displays (A, A) 12a and 12a are arranged so that a display image can be projected onto the surface 15A of the mirror member 15 at positions that are substantially line symmetrical with respect to the left and right about the steering column 3. Yes. In the pair of first virtual image liquid crystal displays (A, A) 12a and 12a, each display image is reflected by the surface 15A of the mirror member 15 toward the position of the driver's eye seated on the driver's seat, and is reflected from the driver. The liquid crystal display (C) 11a is disposed so as to be visually recognized by the driver as a virtual image (first virtual image) Aa at a pair of first positions set behind the liquid crystal display (C) 11a.
The first virtual image display device 12 is output from, for example, an imaging device 16 that captures an external environment of the vehicle 1 (for example, an external environment region on the rear side of the vehicle that is visible to the driver by a door mirror (not shown) of the vehicle 1). The captured image is displayed on each of the pair of first virtual image liquid crystal displays (A, A) 12a, 12a.

The second virtual image display device 13 includes a second virtual image liquid crystal display (B) 13a made of, for example, TFT (thin film transistor) liquid crystal. The second virtual image liquid crystal display (B) 13a is arranged so that a display image can be projected onto the surface 15A of the mirror member 15 at a position behind the steering column 3 when viewed from the driver seated on the driver's seat. In the second virtual image liquid crystal display (B) 13a, the display image is reflected by the surface 15A of the mirror member 15 toward the eyes of the driver seated on the driver's seat and behind the liquid crystal display (C) 11a as viewed from the driver. It is arrange | positioned so that a driver | operator may visually recognize as a virtual image (2nd virtual image) Ba of the 2nd position set to (2).
The second virtual image display device 13 displays information on the vehicle 1 such as the engine speed, speed, fuel remaining amount, and engine water temperature meter of the vehicle 1 on the second virtual image liquid crystal display (B) 13a.

The pair of first virtual image liquid crystal displays (A, A) 12a and 12a are arranged farther from the surface 15A of the mirror member 15 than the second virtual image liquid crystal display (B) 13a. Thus, each of the pair of first positions in the predetermined direction P is set farther away from the liquid crystal display (C) 11a than the second position. For example, with respect to the distance X from the liquid crystal display (C) 11a to each first position in the predetermined direction P, the second position is shifted from each first position by the distance XAB toward the driver's labor side. C) The distance from 11a to the second position is (X-XAB).
The pair of left and right first virtual images Aa and Aa at the first position as viewed from the driver are spaced apart from each other at a predetermined interval in the left and right direction of the vehicle 1. Further, the second virtual image Ba at the second position as viewed from the driver is disposed at the center position between the pair of first virtual images Aa and Aa in the left-right direction of the vehicle 1.

  That is, a captured image of the outside world, information on the vehicle 1, and the like are generated as virtual images by the mirror member 15 disposed on the front side of the liquid crystal display (C) 11a. Thereby, the warning display of the liquid crystal display (C) 11a can be seen in front of the captured image of the outside world and the information of the vehicle 1, and the captured image of the outside world and the information of the vehicle 1 can be seen through the warning display. It is set to be visible.

  The control device 14 controls the display of each of the real image display device 11, the first virtual image display device 12, and the second virtual image display device 13. Further, the control device 14 controls the imaging of the imaging device 16.

  The vehicle display device 10 according to the present embodiment has the above-described configuration. Next, the operation of the vehicle display device 10 will be described.

  For example, when the vehicle 1 travels according to the driving operation of the driver, when another vehicle approaches the vehicle 1 so as to overtake the vehicle 1 from behind, the vehicle 1 is turned on as shown in FIGS. The first virtual image display device 12 in the state displays the captured images of the left and right rear sides of the vehicle 1 output from the imaging device 16 as a pair of first virtual images Aa and Aa at the first position. The second virtual image display device 13 displays information of the vehicle 1 such as the speed of the vehicle 1, the fuel remaining amount, and the engine water temperature meter as the second virtual image Ba at the second position. The real image display device 11 displays a frame image Ca superimposed on the obstacle of the first virtual image Aa as alert information for the obstacle of the vehicle 1 present in the captured image output from the imaging device 16. Thereby, the real image display device 11, the second virtual image display device 13, and the first virtual image display device 12 three-dimensionally stack the frame image Ca, the second virtual image Ba, and the first virtual image Aa in the predetermined direction P. indicate.

  For example, during traveling of the vehicle 1 in semi-automatic driving by operation of various driving assistances such as constant speed driving and lane departure prevention, as shown in FIGS. The first virtual image display device 12 is turned off, and the second virtual image display device 13 is turned on. The second virtual image display device 13 in the on state displays information on the traveling path of the vehicle 1 (for example, whether or not there is a construction section) together with information on the vehicle 1 such as the type of driving assistance being operated and the speed of the vehicle 1. The second virtual image Ba is displayed at the second position. The first virtual image display device 12 is turned on, for example, when a dangerous state occurs, and displays a captured image of the outside of the vehicle 1 as a first virtual image Aa at the first position.

  For example, when the vehicle 1 is stopped, as shown in FIGS. 5A and 5B, the second virtual image display device 13 stops and the real image display device 11 displays the entertainment-related information as a real image. The first virtual image display device 12 displays detailed information and accompanying information for the entertainment-related information as a pair of first virtual images Aa and Aa at a pair of left and right first positions.

  As described above, according to the vehicle display device 10 according to the present embodiment, a plurality of pieces of information can be displayed in a three-dimensional manner in accordance with the priority order and the like, and display contents are prevented from becoming complicated. Can do. Further, since the display of the virtual image is combined with the display of the real image, it is possible to perform a remote display without requiring an actual spatial distance, and it is possible to prevent the apparatus from becoming large. Furthermore, since the virtual image can be displayed farther than the position where the real image can be displayed, it is possible to reduce the focus difference and the line-of-sight movement between the front field of view and the virtual image. Furthermore, by displaying the virtual image far away, it is possible to make the virtual image appear substantial by bringing it closer to the external field of view, and by displaying the real image in front of the driver rather than the virtual image, it can be shown and displayed. Various display modes can be realized in a space-saving manner according to the priority of information.

Furthermore, the first virtual image and the second virtual image can be displayed at different first and second positions by providing the first liquid crystal display device and the second liquid crystal display device having different distances to the common mirror member, and the device configuration In addition, it is possible to display a plurality of virtual images in a three-dimensional manner while preventing the arrangement from becoming complicated.
Furthermore, it is possible to centrally arrange the devices in front of the driver seat, and to prevent an increase in the space required for mounting the devices.
Furthermore, the real image display device can be prevented from interfering with the optical system of the first virtual image display device and the second virtual image display device, and clear first virtual image and second virtual image can be obtained.

  The present embodiment described above shows an example in carrying out the present invention, and it goes without saying that the present invention is not construed as being limited to the above-described embodiment.

DESCRIPTION OF SYMBOLS 10 Display apparatus for vehicles 11 Real image display apparatus 11a Liquid crystal display (liquid crystal display device)
12 First virtual image display device 12a First virtual image liquid crystal display (first liquid crystal display device)
13 Second virtual image display device 13a Second virtual image liquid crystal display (second liquid crystal display device)
14 Control Device 15 Mirror Member 16 Imaging Device

Claims (4)

A real image display device that displays a real image at a predetermined position in a predetermined direction in front of the vehicle that is visible to a driver of the vehicle;
A first virtual image display device that displays a first virtual image at a first position different from the predetermined position in the predetermined direction;
A second virtual image display device that displays a second virtual image at a second position different from the predetermined position in the predetermined direction;
With
The real image display device, the first virtual image display device, and the second virtual image display device display the real image, the first virtual image, and the second virtual image in a stacked manner in the predetermined direction.
A display device for a vehicle. The real image display device includes a liquid crystal display device for real images,
The first virtual image display device and the second virtual image display device include a common mirror member, and a first liquid crystal display device and a second liquid crystal display device having different distances to the mirror member,
The mirror member reflects light incident on the surface from the first liquid crystal display device and the second liquid crystal display device toward a position of the driver's eyes, and enters the back surface from the driver back side in the predetermined direction. Transmits light toward the driver's side,
The vehicular display device according to claim 1. The first liquid crystal display device includes a pair of liquid crystal display devices at positions that are substantially line-symmetric with respect to the left and right about the steering column.
The vehicle display device according to claim 2. The liquid crystal display device for the real image is disposed in the predetermined direction on the driver back side with respect to the mirror member and on the driver front side with respect to the first virtual image and the second virtual image.
The vehicle display device according to claim 2, wherein the display device is a vehicle display device.

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