JP2602014Y2 - Vehicle head-up display device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a head-up display device for a vehicle.

[0002]

2. Description of the Related Art A conventional head-up display device for a vehicle of this type is, for example, as shown in FIG. Specifically, a main body case 3 having an opening 2 on an upper surface is provided inside an instrument panel 1 provided in front of a driver's seat, and a fluorescent display tube (VFD) or the like is provided inside the main body case 3. A sub-display 4 and a plane mirror 5 for reflecting a display image from the sub-display 4 are arranged.
Further, a projector 18 provided with a transparent cover 6 for preventing dust from entering the main body case 3 is formed in the opening. Further, a translucent reflector (combiner) 8 serving as a half mirror is provided on the inner surface of the windshield 7 located above the instrument panel 1 so that the display image of the sub-display 4 can be transmitted to the plane mirror 5 and the translucent panel. The light is reflected by the reflective reflector 8, and the translucent reflector 8 can read the display image on the display 4 together with the scene in front of the vehicle.

Reference numeral 9 denotes a main display which is provided inside the instrument panel 1 and displays, for example, an analog type or a digital type, which indicates the vehicle speed and engine speed. Reference numeral 11 denotes a display controller for driving the sub display 4 and a sensor for driving the main display 9.

[0004]

However, in such a conventional head-up display device for a vehicle, the emission color of the sub-display 4 by a fluorescent display tube (VFD) or the like can be visually recognized by human eyes. In consideration of easiness and display brightness, the emission wavelength of the fluorescent display tube (VFD) is set to 505 mm.
Although it is displayed in green near, by the sub-display 4,
For example, when an alarm display 12 such as a vehicle failure or caution is displayed, the alarm display is normally displayed as an information display 13.
Since the display is displayed in green, which is the same color as the above, the impact on the driver by the warning display 12 is weak, and there is a problem that a warning display such as a failure or caution may be missed due to this, which is dangerous.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of such a conventional problem, and a display device of a fluorescent display tube (VFD) arranged in a projector of a head-up display device. The reflector that reflects the display image toward the translucent reflector has a characteristic of transmitting only a color of a specific wavelength, and a colored light source is provided on the back side of the reflector to provide an impact on the driver. An object of the present invention is to provide a vehicular head-up display device that performs a certain display, thereby making a driver surely visually recognize an alarm display such as a failure or caution of a vehicle, promotes danger avoidance or caution, and improves safety.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiment shown in FIG. 2. The same parts of the structure of this embodiment and the structure described in the conventional example are denoted by the same reference numerals as those in the conventional example. The description of the same structural part is omitted.

That is, a fluorescent display tube (VF) arranged in the projector 14 of the head-up display device.
D) The display mirror 15 which receives the display image from the sub-display 4 and reflects it toward the translucent reflection plate 8 has the property of transmitting only red and reflecting the others, and also has the property of reflecting the red. A light source 16 that emits red light is arranged on the back side of the light source. 1
Reference numeral 7 denotes a sensor that detects an abnormality such as a temperature, a liquid amount, and a pressure.

The structure of this embodiment has been described above. Next, the operation will be described. FIG. 2 shows a fluorescent display tube (VF).
The display light emitted by the sub-display 4 according to D) passes through the representative optical path b, the optical path is bent by the reflecting mirror 15, and passes through the representative optical path a. The display light passing through the representative optical path a enters one point P on the inner surface of the windshield 7 and is reflected by the translucent reflector 8, and is displayed on the display 4 together with the scene in front of the vehicle by the translucent reflector 8. The image can be read.

When an abnormality is detected by a temperature, liquid amount, pressure, etc. sensor 17 for detecting a failure or abnormality of the vehicle, an alarm display signal is output from the display controller 10 and a sub-display of the fluorescent display tube is provided. 4, a warning light 12 for prompting an abnormality or caution of the vehicle is displayed, and a colored light source 16 that emits red light disposed on the back side of a reflecting mirror 15 having a property of transmitting only the red color and reflecting the others is displayed. By turning on the light, the normally displayed information display 13 and the alarm display 12 are simultaneously displayed.

Further, the red light emitted from the colored light source 16 is transmitted and refracted through the reflecting mirror 15, so that the red display 18 is also displayed as a background of the alarm display 12 and the information display 13 so as to be superimposed. To provide a vehicular head-up display device in which a warning display 12 such as a failure or caution of a vehicle can be surely visually recognized, danger avoidance or caution is urged, and safety is improved. Can be.

[0011]

As described above, according to the present invention, information display such as characters and figures is reflected by the windshield 7 of the vehicle or the translucent reflector 8 provided in front of the windshield, and a virtual image is displayed in front of the windshield. Projector 14 that projects an image
Is provided in the instrument panel 1 and the projector 14 is provided with a display 4 and a reflecting mirror 15 for reflecting a display image from the display 4 toward the translucent reflecting plate 8, thereby providing an external environment. In a head-up display device that displays the information in superimposition with the scenery of
The color displayed on the back side of the reflecting mirror 15 differs from the color displayed on the display 4.
And a colored light source 16 of
The reflecting mirror 15 has the property of transmitting a specific color emitted by
Since this is a head-up display device for a vehicle, the device can be operated with a predetermined display color according to the present invention.
When the driving information is displayed, the driving
The display color (background color) of the information display can be changed to a different color
Use a head-up display for vehicles with an existing head
Significant design changes compared to do-up display devices
Without having to do so, and greatly increasing the size of the equipment.
It is possible to manufacture compactly without turning.
Further, according to the present invention, the image displayed by the display 4 is reflected by the reflecting mirror
15 is directly illuminated to the display 4
Display brightness from the
Maintain display brightness and display head-up efficiently
be able to. According to the present invention, there can be displayed with the impact to reliably visually recognize the alarm display 12 of the failure and attention of the vehicle by color change to the driver encourages the danger avoidance or attention during operation, safety An effect is obtained that an improved head-up display device for a vehicle can be provided.

[Brief description of the drawings]

FIG. 1 is a structural explanatory view of a conventional head-up display device.

FIG. 2 is a structural explanatory view of a head-up display device of the present embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Instrument panel 2 ... Opening 3 ... Main body case 4 ... Display 6 ... Transparent cover 7 ... Windshield 8 ... Translucent reflector 9 ... Main display 10 ... Display controller 11 ... Sensor 12 ... Alarm display 13 ... Information display 14 Projector 15 Reflector 16 Colored light source 17 Sensor 18 Colored display

Claims (1)

(57) [Scope of request for utility model registration] An information display such as characters and figures is reflected by a windshield (7) of a vehicle or a translucent reflector (8) provided in front of the windshield, and a virtual image display image is projected in front of the windshield. A projector (14) is provided in the instrument panel (1), and a display (4) and a display image from the display (4) are provided in the projector (14) on the translucent reflector (8). In a head-up display device that displays the information by superimposing it on an external scene by disposing a reflecting mirror (15) that reflects light toward the outside, the display device is provided on the back side of the reflecting mirror (15).
A colored light source (16) having a color different from the display color according to (4) is provided.
And the specific color emitted by the colored light source (16) is transparent.
A head-up display device for a vehicle, characterized in that the reflecting mirror (15) is provided with the characteristic of passing through.