JPH0668956U - Head-up display device for vehicle - Google Patents

Abstract

(57) [Summary] [Purpose] To improve the visibility of warning displays for vehicle failures and cautions. [Structure] A structure in which, in addition to information display and alarm display in a head-up display device, colored display is performed on these display portions. [Effect] In particular, the visibility at the time of warning display is enhanced, and the avoidance of danger or caution is encouraged during driving to improve safety.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a vehicle head-up display device.

[0002]

[Prior art]

 As a conventional head-up display device for a vehicle of this type, there is one shown in FIG. 1, for example. This is provided with a main body case 3 having an opening 2 on the upper surface inside an instrument panel 1 provided in front of a driver's seat, and inside the main body case 3, a fluorescent display tube (VFD) and the like. The sub-display 4 and the plane mirror 5 for reflecting the display image from the sub-display 4 are arranged, and the opening has a transparent cover for preventing dust from entering the main body case 3. A projector 18 provided with 6 is formed. 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 image displayed on the sub-display 4 is reflected by the plane mirror 5 and the translucent light. The image is displayed on the display 4 along with the scene in front of the vehicle after being reflected by the reflective reflector 8.

Reference numeral 9 is provided inside the instrument panel 1, and displays, for example, vehicle speed, engine speed, etc., for example, an analog or digital main display, and 10 is the main display 9 and the sub-display. A display controller for driving the display unit 11, and a reference numeral 11 denotes a sensor for driving the sub display unit 4 and the main display unit 9.

[0004]

[Problems to be solved by the device]

 However, in such a conventional vehicle head-up display device, the emission color of the sub-display 4 such as a fluorescent display tube (VFD) is taken into consideration in view of easiness of visual recognition by human eyes and display brightness. However, the emission wavelength of the fluorescent display tube (VFD) is displayed in green near 505 mm. However, when the sub-display 4 displays an alarm display 12 such as a vehicle failure or caution, this alarm is displayed. Since the display is displayed in green, which is the same color as the information display 13 that is normally displayed, the alarm display 12 has a weak impact on the driver, and this may cause an alarm display such as a failure or caution to be missed. There was a problem that it was dangerous.

[0005]

[Means for Solving the Problems]

 The present invention has been made in view of such a conventional problem, and a display image is translucently reflected from a display of a fluorescent display tube (VFD) arranged in a projector of a head-up display device. The reflecting mirror that reflects toward the plate has a characteristic of transmitting only a color of a certain specific wavelength, and a colored light source is provided on the back side of the reflecting mirror to display an impact on the driver. It is intended to provide a vehicle heads-up display device capable of ensuring the driver's visual confirmation of warnings such as malfunctions and cautions, avoiding danger or urging caution, and improving safety.

[0006]

【Example】

 The present invention will be described in detail below based on the embodiment shown in FIG. 2. The same parts as those of the structure of this embodiment and the structure of the conventional example are designated by the same reference numerals as those of the conventional example. The description of the part is omitted.

That is, a reflection mirror 15 that receives a display image from the sub-display 4 of the fluorescent display tube (VFD) arranged in the projector 14 of the head-up display device and reflects it toward the translucent reflection plate 8. In addition, the light source 16 which emits red light is arranged on the back side of the reflecting mirror 15 while having a characteristic of transmitting only red light and reflecting the other light. Reference numeral 17 is a sensor for detecting an abnormality such as temperature, liquid amount, pressure or the like.

The structure of this embodiment has been described above. Next, its operation will be described. In FIG. 2, the display light emitted by the sub-display 4 by the fluorescent display tube (VFD) passes through the representative optical path b 1. 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 is incident on a point P on the inner surface of the windshield 7, is reflected by the translucent reflector 8 and is displayed by the indicator 4 together with the scene in front of the vehicle by the translucent reflector 8. You can read the image.

Further, when an abnormality is detected by the temperature, liquid amount, pressure, etc. sensor 17 for detecting a vehicle failure or abnormality, an alarm display signal is output from the display controller 10, and a sub-display of the fluorescent display tube. A colored light source 16 that emits red light is provided on the back side of the reflecting mirror 15 that has a characteristic of transmitting only the red color and reflecting the other while displaying an alarm display 12 that prompts the vehicle abnormality or attention, etc. 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 through the reflecting mirror 15 and refracted, whereby the red display 18 is also displayed as a background of the alarm display 12 and the information display 13 in a superimposed manner. A head-up display device for a vehicle is provided, which enables an alarm display having an impact on the driver, which allows the alarm display 12 for vehicle failure, caution, etc. to be visually recognized, and avoids danger or warns attention to improve safety. can do.

[0011]

[Effect of device]

 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 to project a virtual image display image in front of the windshield. By providing the projector 14 in the instrument panel 1 and arranging the display 4 and the reflecting mirror 15 for reflecting the display image from the display 4 toward the translucent reflection plate 8 in the projector 14, In a head-up display device that displays the information in an overlapping manner with the scenery of the outside world, the reflecting mirror 15 has a characteristic of transmitting only a specific color, and the display 4 is provided on the back side of the plane mirror. The head-up display device for a vehicle is characterized in that a colored light source 16 having a color different from the display color is provided. It is possible to provide a head-up display device for a vehicle, which is capable of displaying the warning display 12 indicating the intention of the driver with certain impact so that it can be visually recognized by the driver, avoiding danger or urging attention while driving, and improving safety. The effect is obtained.

[Brief description of 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 this embodiment.

[Explanation of symbols]

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

Claims (1)

[Scope of utility model registration request] 1. A virtual image display image is projected in front of the windshield (7) of a vehicle or a translucent reflector (8) provided in front of the windshield to reflect information such as characters and figures. A projector (14) is provided in the instrument panel (1), and a display (4) and a display image from the display (4) are provided on the translucent reflector (8) in the projector (14). By arranging the reflecting mirror (15) for reflecting toward the outside, in the head-up display device that displays the information by superimposing it on the scenery of the outside world, the reflecting mirror (15) has a characteristic of transmitting only a specific color. A colored light source (1) having a color different from that displayed by the display (4) is provided on the back side of the plane mirror.
6) A head-up display device for a vehicle, which is provided with.