JP2000255321A - Vehicular mirror with built-in monitor device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain excellent visibility by letting a boundary line between the screen of a monitor device and each of the other mirror surfaces be obscure because the screen of the monitor device when it is out of operation is roughly identical in color to a colored plate. SOLUTION: A reflecting film 4 composed of a multilayer film is provided for the back surface of a mirror substrate 3, a colored plate 5 having an opening part 50 in the back surface of its reflecting film 4 is disposed, a monitor device 7 is disposed to the opening part 50 of the colored plate 5, and the screen 70 of the monitor device 7 when it is out of operation, is roughly identical in color to the colored plate 5. By this constitution, since the screen 70 is roughly identical in color to the colored plate 5, a boundary line between the screen 70 of the monitor device 7 and each of the other mirror 2 surfaces becomes obscure, so that excellent visibility can thereby be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, an inner mirror device for an automobile, which has a built-in monitor device for projecting information on a periphery of a vehicle caught by a camera device on a screen as a camera image. Related to a vehicle mirror with a built-in monitor device in which the camera image of the screen is projected into the mirror. Especially, the boundary between the screen of the monitor device and the other mirror surface is unclear, and the built-in monitor device with good visibility And a vehicle mirror.

[0002]

2. Description of the Related Art For example, an inner mirror device for a vehicle, which is a vehicle mirror having a built-in monitor device, is generally provided with a camera device in a mirror 200 when the monitor device 7 is turned on, as shown in FIG. Information on the periphery of the caught vehicle is displayed on the screen 70 of the monitor device 7 as a camera image, and the screen 7 of the monitor device 7 is displayed.
A rear view image is displayed on the mirror 200 surface other than 0. When the monitor device 7 is off, the mirror 2 is turned off.
The rear view image is projected on the entire 00 surface.

As shown in FIG. 4, the mirror 200 has a mirror substrate 300 made of a transparent material, for example, a transparent glass or a transparent resin, and a reflection substrate such as an aluminum vapor deposition provided on the back surface of the mirror substrate 300. Membrane 400, 401
(Shown thick in the drawings). Among the above-mentioned reflection films, the screen 7 of the monitor device 7
The portion 401 corresponding to 0 is a so-called half mirror (semi-reflective transflective mirror). That is, the film thickness of this portion 401 is made smaller than the film thickness of the other portions 400.

[0004]

However, in the above-described conventional vehicle mirror with a built-in monitor device, the half mirror portion 401 has a film thickness of another portion 400 in the reflection film.
, The reflectance of the half mirror portion 401 is significantly different from the reflectance of the other portion 400. For this reason, especially when the monitor device 7 is in the off state, the boundary between the screen 70 (the half mirror portion 401) of the monitor device 7 and the other mirror 200 surface (the other portion 400) clearly appears and good visibility is achieved. There is a problem that the property cannot be obtained.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a vehicle mirror with a built-in monitor device having good visibility, in which the boundary between the screen of the monitor device and other mirror surfaces is unclear.

[0006]

According to the present invention, in order to achieve the above object, a color plate having an opening on the back surface of a reflection film is provided, and a monitor device is arranged on the color plate. , The screen of the monitor device faces the reflective film,
Further, when the monitor device is in the off state, the monitor device is substantially the same color as the colored plate.

As a result, when the monitor device is in the off state, the color of the screen of the monitor device and the color of the colored plate are substantially the same on the back side of the reflection film when the monitor device is off. As a result, the boundary between the screen of the monitor device and the other mirror surface becomes unclear, and good visibility can be obtained.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a vehicle mirror incorporating a monitor device according to the present invention will be described below with reference to FIGS. This example describes an inner mirror device for a vehicle. In the figure, the same reference numerals as those in FIG.

In FIG. 1, reference numeral 1 denotes a mirror housing. A mirror 2 of a so-called half mirror (semi-reflective semi-transmissive mirror) is arranged in the opening 10 of the mirror housing 1. As shown in FIG. 1, the mirror 2 includes a mirror substrate 3 made of a transparent material, for example, transparent glass or transparent resin, and a multilayer reflective film 4 provided on the back surface of the mirror substrate 3. ing. In addition, the above-mentioned reflection film 4
Is thickly illustrated in the drawings.

In a vacuum, the reflective film 4 of the multilayer film is made of TiO ₂ (reflective layers having a high refractive index) 41 and 43 and SiO 2.
₂ (low refractive index reflective layer) 42, 44
At a center wavelength of 0 nm and an optical film thickness of λ / 4,
A multilayer film formed by laminating layers is formed by a sputtering method, a vacuum evaporation method, or the like.

On the back surface of the reflection film 4, a color plate 5 is arranged. The colored plate 5 has an opening 50.

A monitor device 7 is disposed in the opening 50 of the above-mentioned colored plate 5, and the monitor device 7
Screen 70 is opposed to the reflective film 4. On the other hand, the color of the colored plate 5 and the screen 7 when the monitor device 7 is in the off state.
The color 0 is almost the same color (black).

The vehicle mirror with a built-in monitor device according to the present invention in this embodiment has the above-described configuration. When the monitor device 7 is turned on, a mirror device 2 (not shown) is used in the mirror 2. Information on the surroundings of the caught vehicle is displayed as a camera image on the screen 70 of the monitor device 7.
It is projected to. That is, since the mirror 2 is a half mirror, the camera image on the screen 70 of the monitor device 7 is
The light can be visually recognized through the mirror 2 through a semi-transmission. At this time, a rear view image is projected on the mirror 2 surface other than the screen 70 of the monitor device 7. That is, since the mirror 2 is a half mirror, a rear view image is projected with a predetermined reflectance. When the monitor device 7 is in the off state, a rear view image is projected on the entire surface of the mirror 2. At this time, since the colored plate 5 and the screen 70 of the monitor device 7 have substantially the same color (black) on the back surface of the reflection film 4, the boundary line 8 between the screen 70 of the monitor device 7 and the other mirror 2 surface (see FIG. 2 (indicated by a broken line) becomes unclear, and good visibility is obtained. The color of the colored plate 5 and the color of the screen 70 of the monitor device 7 in the off state are obtained as reflected colors.

In particular, in this embodiment, since a colored coating and a mask are not necessary, it is advantageous in production and the environment is good.

The vehicle mirror with a built-in monitor device according to the present invention includes TiO ₂ (reflective layer having a high refractive index) 41, 43,
And four layers of SiO ₂ (reflective layers having low refractive index) 42 and 44 are alternately laminated, and the reflective film 4 of the multilayer film is used (by utilizing the interference effect of light of the multilayer film). , Blue reflected light (a so-called blue mirror) is obtained.
% Reflectance is obtained, the standard for mirrors for vehicles (38
%), And an anti-glare effect on the light of the headlamp of the following vehicle can be obtained. By adjusting the reflective film 4 of the multilayer film described above, reflected light of bronze, reflected light of green blue, and the like can be obtained, and a predetermined reflectance can be obtained.

The screen 70 of the monitor device 7 displays titanium oxide TiO _{2 as a} photocatalyst (JP-A-9-56549, JP-A-9-226531, JP-A-9-228).
326, JP-A-9-230118, JP-A-9-230119, JP-A-9-230810, and JP-A-9-231807. In this case, since the titanium oxide of the photocatalyst performs a hydrophilic action and a self-cleaning action by the light from the screen 70 of the monitor device 7, the fogging of the screen 70 of the monitor device 7 is prevented, and the visibility of the monitor image is improved. You.

In the above-described embodiment, the screen 70 of the monitor device 7 is provided over the entire front surface of the monitor device 7, but a border of the monitor device 7 may be provided around the screen 70. . In addition, a gap may be provided between the reflective film 4 and the screen 70 of the monitor device 7 and the colored plate 5. Further, the reflection film may be a single layer film instead of a multilayer film.

[0018]

As is clear from the above description, in the vehicle mirror with the built-in monitor device of the present invention, the color of the colored plate and the screen color when the monitor device is off are almost the same.
The boundary between the screen of the monitor device and the other mirror surface becomes unclear, and good visibility can be obtained.

[Brief description of the drawings]

FIG. 1 is a partially enlarged cross-sectional view of a main part showing an embodiment of a vehicle mirror incorporating a monitor device of the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a sectional view taken along line III-III in FIG. 2;

FIG. 4 is a partially enlarged sectional view showing a conventional vehicle mirror with a built-in monitor device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Mirror housing, 10 ... Opening, 2 ... Mirror, 3
... mirror substrate, 4 ... multilayer reflective film, 5 ... colored plate, 50
... opening, 7 ... monitor device, 70 ... screen, 8 ... borderline.

Claims (1)

[Claims] 1. A mirror housing, a mirror substrate disposed in an opening of the mirror housing, a reflection film provided on a back surface of the mirror substrate, and an opening, wherein A colored plate provided, a monitor device disposed on the colored plate, and a screen of a monitor device that faces the reflective film and that is substantially the same color as the colored plate when the monitor device is in an off state. A vehicle mirror with a built-in monitor device.