KR101440682B1 - Head-up-display - Google Patents

Abstract

The present invention reduces the overall size by changing the installation route of the plane mirror and the concave mirror from the video output unit by changing the moving path of the image plane in a compact manner and minimizes the space utilization, The present invention relates to a head-up display capable of maximizing a height of a vehicle, including a case embedded in an upper portion of a dashboard of a vehicle and having an open top, a control board fixedly installed on an inner bottom surface of the case, An image output unit for receiving information related to the traveling state of the vehicle from the control board and outputting the image as an image and projecting the image upward; and a display unit fixedly installed inside the case so as to cover the control board, A black cover in which an image moving hole is formed so as to move an image projected from a portion A case which is provided at the rear of the upper part of the black cover and which has a plane mirror which is projected from the video output part and reflects an image passed through the image moving hole of the black cover to the front of the case, And a window cover for covering an upper portion of the case and a window for displaying an image on a front glass of the vehicle by transmitting an image reflected from the circumferential surface, .

Description

Head-up display {HEAD-UP-DISPLAY}

The present invention relates to a vehicle display device for displaying various types of information such as a speed, a fuel amount, a temperature, and a warning direction of a vehicle to a driver in the front of a driver during driving, that is, And a head-up display for providing other information.

If we look at human living space, we can distinguish three kinds of living space: house, workplace, and moving space. In particular, the vehicle occupies most of the moving space.

Such a vehicle is generally provided with a cluster on which various information related to the running state of the vehicle is displayed. The instrument panel is composed of a speedometer, a fuel meter, a thermometer, and various warning lamps. The driving state of the vehicle is grasped and the safe driving is performed. Therefore, the instrument panel is installed in front of the dashboard in which the driver can easily gaze while driving.

However, the driver operates the driver through the front glass of the vehicle while checking the forward visibility, and moves the gaze to the dashboard at any time to check the instrument panel. At this time, the movement of the gaze is large and the focal distance of the eye As the above situation continues, fatigue easily occurs. In particular, when the driver gazes on the instrument panel while driving, the front vision can not be confirmed, and thus, there is a risk of accident.

A head-up display (HUD) is widely known as a medium for effectively conveying vehicle driving information and surrounding information to a driver in order to secure driving safety during driving of the driver.

The head-up display of a vehicle is a display device that provides vehicle driving information or other information in front of the driver during the driving of the vehicle, that is, within a range that does not deviate from the driver's main visual line. In the early days, It is also installed in vehicles.

There is a danger that the time to set the field of view on the dashboard during the normal speed of about 100 km / h driving, and the time to fix the field of view forward is about 2 seconds, about 55 m. One of the ways to reduce this risk is the background of the head-up display of the vehicle. The head-up display of the vehicle displays information on the instrument panel (speed, mileage, RPM, navigation information, etc.) So that the driver can easily grasp the traveling information even while driving. This allows the driver to maintain safe driving by recognizing important driving information without having to take his eyes off the road ahead.

1 is a schematic view showing a state in which a dashboard and a head-up display are installed in a general vehicle. The ECU 10 receives information from various sensors installed in the vehicle 1, receives signals from the ECU 10, An instrument panel 20 for computing information relating to the running state of the vehicle 1 and displaying information relating to the running state of the vehicle 1 and a control unit 20 for receiving signals from the ECU or the instrument panel 20, Up display 30 for displaying information related to the running state of the vehicle 1 on the windshield 2 of the vehicle 1 as an image. The driving state of the vehicle 1 is detected by the instrument panel 20 and the head-up display 30 in the cluster through the instrument panel 20 or on the front glass 2 through the center fascia or head- Image.

FIG. 2 is a perspective view showing a head-up display according to a related art, FIG. 3 is an exploded perspective view of the embodiment of FIG. 2, and FIG. 4 is a perspective view showing a movement path of an image by removing a window cover in the embodiment of FIG. And Fig. 5 is a plan view of the embodiment of Fig.

The head-up display 30 according to the related art includes a case 31, which is buried in the upper portion of the dashboard 3 of the vehicle 1 and opens upward, as shown in Figs. 2 to 4 with reference to Fig. 1, A control board 32 fixed to the lower surface of the case 31; a black cover 33 fixedly installed inside the case 31 so as to cover the control board 32; (31) for receiving information related to the traveling state of the vehicle (1) from the control board (32) and outputting the image as an image and projecting the information in the right direction of the case (31) (35) installed on the upper right side of the black cover (33) and reflecting the image projected from the video output section (34) to the front of the case, And an image reflected from the plane mirror 35 is reflected by the case 31, A window 37a is provided so that an image is displayed on the front glass 2 of the vehicle 1 by transmitting an image reflected from the circumferential surface 36 and the case 31 And a window cover 37 for closing the upper portion of the window cover 37. [ A rotation motor 38 for rotating the concave mirror 36 according to a control signal of the control board 32 is provided to adjust the height of an image displayed on the windshield 2 of the vehicle 1. [

4 and 5, the head-up display 30 according to the related art having the above-described structure is configured such that the movement path of the image starts from the video output section 34 provided on the left side of the case 31, And is displayed as an image on the windshield 2 of the vehicle 1 through a concave mirror 36 provided in front of the case 31 through a plane mirror 35 provided on the right side of the case 31. [ The front and rear lengths of the case 31 are enlarged according to the movement route of the upper and lower sides of the vehicle 1 and thus the installation area buried in the dashboard 3 of the vehicle 1 is also widened, (3) there is a problem of hindering the space utilization inside.

SUMMARY OF THE INVENTION It is an object of the present invention, which is devised to solve the problems described above, to reduce the overall size by changing the installation route of the plane mirror and the concave mirror from the image output unit compactly, That is, the present invention provides a head-up display capable of minimizing the area and maximizing space utilization in the dashboard of a vehicle.

Other objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments with reference to the accompanying drawings.

According to an aspect of the present invention, there is provided a head-up display comprising: a case embedded in a dashboard of a vehicle and having an open top; a control board fixedly installed on an inner bottom surface of the case; A video output unit fixedly mounted on the rear side for receiving information related to the driving state of the vehicle from the control board and outputting the video as an image and projecting it upward; A black cover which is provided at an upper rear portion of the black cover and which is projected from the video output portion and passes through an image movement hole of the black cover; A case having a plane mirror for reflecting the image to the front of the case, And a window cover for transmitting an image reflected from the concave mirror to display an image on the front glass of the vehicle and closing the upper portion of the case .

The controller may further include a rotation motor that rotates the plane mirror according to a control signal of the control board to adjust the height of the image displayed on the windshield of the vehicle.

The head-up display according to the present invention can reduce the overall size by changing the image movement path in the vertical direction and the back and forth direction by compactly changing the installation position of the plane mirror and the concave mirror from the image output unit, So that the space utilization inside the dashboard of the vehicle can be maximized.

Particularly, since the image projected from the image output unit passes through the image movement hole of the black cover, the light of the image projected toward the plane of the image is not scattered or interfered, so that a clearer and clearer image can be displayed.

Further, since the rotary motor for adjusting the height of the image displayed on the windshield of the vehicle is provided not on the concave mirror positioned in front of the conventional case but on the plane mirror located above the image output unit, It is possible to make up space utilization even more by making up for the space loss of the front and back and left and right areas according to the installation of the rotation motor.

1 is a schematic view showing a state in which a dashboard and a head-up display are installed in a general vehicle,
2 is a perspective view showing a head-up display according to the prior art,
Figure 3 is an exploded perspective view of the embodiment of Figure 2,
Fig. 4 is a perspective view showing the movement path of the image by removing the window cover in the embodiment of Fig. 2,
Figure 5 is a plan view of the embodiment of Figure 4,
6 is a perspective view showing a head-up display according to the present invention,
FIG. 7 is an exploded perspective view of the embodiment of FIG. 6,
8 is a perspective view showing a movement path of an image by removing a window cover in the embodiment of FIG.

Hereinafter, preferred embodiments of a head-up display according to the present invention will be described in detail with reference to the accompanying drawings.

The head-up display according to the present invention includes a case 100 mounted on a dashboard 3 of a vehicle 1, a control board 200, And may further include a rotary motor 800. The rotary motor 800 includes a rotary shaft 300, a black cover 400, a planar mirror 500, a concave mirror 600, and a window cover 700.

The case 100 is buried on the dashboard 3 of the vehicle as shown in Figs. 1 and 6 to 8, and is opened upward. The case 100 is in the form of a box in which various components to be described later are attached and coupled to the inside of the case 100, and the upper side thereof is opened and closed by a window cover 700 to be described later.

6 to 8, the control board 200 includes a rotation motor 800 that mounts various electronic elements and rotates a video output of the video output unit 300 and a plane mirror 500 And is connected to the ECU 10 or the instrument panel 20 of the vehicle 1 as shown in Fig. 1 to receive the running information of the vehicle 1. [ The control board 200 is fixed to the inner surface of the case 100.

7 and 8, the video output unit 300 is fixedly installed on the inner rear side of the case 100 and receives information related to the traveling state of the vehicle 1 from the control board 200 And outputs it as an image and projects it upward. The video output unit 300 generates and outputs a corresponding video based on a video signal and a control signal applied from the control board 200. The video signal at this time is a signal corresponding to driving information such as vehicle information and driving information to be. In general, the image output unit 300 is configured to generate light using a UHP (ultra high pressure) lamp, a light emitting diode (LED), a laser, or the like as a light source, A display device (LCD), a display device such as a PDP or an OLED, and the like. Since the internal configuration and functions of the video output unit 300 are well-known technologies, a detailed description thereof will be omitted. However, the feature of the image output unit 300 in the head-up display 30 according to the present invention is that the image is fixed to the inner rear of the case 100 and the output image is projected upward. The image projected upward from the image output unit 300 is reflected through a plane mirror 500 to be described later. The image projected from the image output unit 300 is scattered or interfered with other components in the case 100 The black cover 400 is installed so that the image of the image is not damaged.

7 and 8, the black cover 400 is fixedly installed inside the case 100 so as to cover the control board 200, and the black cover 400 is projected from the image output unit 300 An image movement hole 410 is formed to penetrate the image to move the image. The black cover 400 is a black cover as it is, and absorbs light without reflecting light, and the light reflected from other components interferes with light of an image projected from the image output unit 300, . That is, since various electronic elements are mounted on the control board 200, if there is no black cover 400, the light of the image projected from the video output unit 300 is reflected from various electronic elements and the image is blurred or broken. An image moving hole 410 is formed in the rear of the black cover 400 so that the image projected from the image output unit 300 is moved through the image moving hole 410 of the black cover 400 . When the image projected from the image output unit 300 moves through the image movement hole 410 of the black cover 400, interference or scattering of other light on the image movement path can be completely eliminated, It is possible to realize a clear image.

7 and 8, the planar mirror 500 is installed at the upper rear of the black cover 400 and is projected from the image output unit 300 and is inserted into the image movement hole 410 of the black cover 400, And reflects the image passed through the case 100 toward the front of the case 100. That is, the plane mirror 500 is installed above the image movement hole 410 formed in the upper portion of the upper portion of the black cover 400. Accordingly, the image projected from the image output unit 300 and reflected by the image passing hole 410 of the black cover 400 can be moved forward to the front of the case 100. The plane mirror 500 functions as a first reflector that reflects the image projected upward from the image output unit 300 toward the front of the case 100 and moves the image upward.

7 and 8, the reflecting mirror 600 is disposed inside the case 100 and reflects the image reflected from the plane mirror 500 to the upper side of the case 100. That is, the image projected from the video output unit 300 is displayed on the front glass 2 of the vehicle 1, that is, above the case 100 through the concave mirror 600 through the plane mirror 500. As shown in FIG. 8, the phase shift path is forwardly moved from the rear lower portion of the case 100 to the upper rear portion of the case 100, then finally reflected to the front upper portion of the case 100, And is displayed as an image on the windshield 2 of the vehicle 1 as shown. The concave mirror 600 finally reflects the light reflected by the plane mirror 500 at all times, i.e., to the front upper portion of the case 100. [ In this case, when the plane mirror 500 is rotated, the reflected image is reflected from the concave mirror 600 and the vertical height of the front glass 2 of the vehicle 1 is adjusted through the rotation motor 800 to be described later.

6 and 7, the window cover 700 is provided with a window 710 for transmitting an image reflected from the circumferential surface 600 to display an image on the front glass 2 of the vehicle 1 , The upper portion of the case 100 is closed. 8, when the case 100 is opened, dust, foreign matter, and the like may be intruded into the case 100, and the plane mirror 500 and the concave mirror 100 may be separated from the image output unit 500 600 may also cause problems. 6 and 7, it is necessary to close the opened upper side of the case 100 through the window cover 700, but to transmit the image reflected from the concave mirror 600, (710) so that an image is displayed on the windshield (2) of the vehicle (1).

In order to adjust the height of the image displayed on the windshield 2 of the vehicle 1, it is necessary to rotate the concave mirror 600 as in the conventional method or to rotate the plane mirror 500 as in the present invention, The height of the image displayed on the windshield 2 can be adjusted. Since the mounting position of the concave mirror 600 is provided in front of the case 100 in order to rotate the concave mirror 600, the length of the front face of the case 100 must be increased by the turning radius of the concave mirror 600, The left and right lengths of the case 100 must be increased in order to install the rotating motor 800 as the rotating means. However, since the plane mirror 500 located above the image output unit 500 can be manufactured in accordance with the size of the image movement hole 410 of the black cover 400, 800 are easily adjustable in position and size. 7 and 8, the rotation motor 800 controls the height of the image displayed on the windshield 2 of the vehicle 1 according to the control signal of the control board 200, (500).

As described above, the head-up display 30 according to the present invention changes the installation position of the plane mirror 500 and the concave mirror 600 compactly from the video output unit 300 so that the movement path of the image changes vertically and horizontally It is possible to maximize the space utilization of the interior of the dashboard 3 of the vehicle 1 by minimizing the front and rear, left and right lengths of the case 100, that is, the area.

Particularly, since the image projected from the image output unit 300 passes through the image movement hole 410 of the black cover 400, the light of the image projected toward the plane mirror 500 is not scattered or interfered, Images can be displayed.

The rotation motor 800 for adjusting the height of the image displayed on the windshield 2 of the vehicle 1 is not provided on the concave mirror 600 located in front of the conventional case 100, The space radius of the conventional concave mirror 600 and the space loss of the front and rear and left and right areas due to the installation of the rotation motor 800 are compensated for, .

The embodiments of the present invention described above and shown in the drawings should not be construed as limiting the technical idea of the present invention. The scope of protection of the present invention is limited only by the matters described in the claims, and those skilled in the art will be able to modify the technical idea of the present invention in various forms. Accordingly, such improvements and modifications will fall within the scope of the present invention as long as they are obvious to those skilled in the art.

1: vehicle
2: Front glass
3: Dashboard
10: ECU
20: Instrument cluster
30: Head-up display
100: Case
200: Control board
300: Video output unit
400: black cover 410: image moving hole
500:
600: Cone surface
700: window cover 710: window
800: Rotary motor

Claims (2)

A case embedded in the upper portion of the dashboard of the vehicle,
A control board fixedly installed on an inner bottom surface of the case,
A video output unit fixedly installed on an inner rear side of the case and receiving information relating to the running state of the vehicle from the control board and outputting the video as an image and projecting it upward;
An image moving hole is formed in the case so as to cover the control board so that an image projected from the image output unit moves rearward; To eliminate the interference and scattering of light when traveling through With a black cover,
A plane mirror which is installed at an upper rear of the black cover and reflects an image projected from the image output unit and passed through the image movement hole of the black cover to the front of the case,
A concave mirror installed in the inner side of the case and reflecting an image reflected from the plane mirror to the upper side of the case,
And a window cover which is provided with a window for transmitting an image reflected from the circumferential surface to display an image on a front glass of the vehicle, and closes an upper portion of the case,
Further comprising: a rotation motor for rotating the plane mirror according to a control signal of the control board to adjust a height of an image displayed on the windshield of the vehicle. delete

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