JPS59178479A - Display unit - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a display device for displaying electrical components such as switches in automobiles, and more particularly to a display device for displaying electrical components by illumination at night.

For example, various switches provided on the dashboard of an automobile are provided with a display section showing their functions, names, and the like.

The display section is constructed by forming a representation on the surface of the transparent display panel, and the representation consists of letters, symbols, etc. formed on the non-transparent layer in a transparent manner.

The display section is attached to the opening of a predetermined case, and is illuminated by a light source provided inside the case at night to display characters, symbols, etc.

By the way, recently, attempts have been made to provide a translucent chromatic layer on the back side of the non-transparent layer to display characters, @ marks, and other representations in color. However, with this type of display, there is a high rate of external light incident on the display area passing through the chromatic layer during the daytime, so the display area cannot display clear colors and the color display function deteriorates. be. In order to prevent this, it is possible to increase the reflectance by adding white ink to the chromatic layer. Therefore, there is a risk that the driver may be dazzled by the reflected light from the windshield or windshield.

The present invention has been developed in view of the above-mentioned circumstances, and its object is to provide a display device that can display characters, symbols, etc. in the i section of the table in high-quality colors.

Embodiments of the present invention will be described below based on the drawings. First, in the first embodiment shown in FIGS. 1 to 3, 1 is a switch for internal air circulation of an air conditioner installed in a car, for example, and this includes a case 2 whose interior is shielded from light except for an opening 2a; A cylindrical knob 3 is slidably provided inside the case 2 through the opening 2a, and a switching element (not shown) is provided deep inside the case 2 and turns on when pressed by the knob 3. For example, 4 is a filter that is a display panel with light regulating properties.This is a so-called light filter.
It is called a control film, and is constructed by sandwiching a light adjusting substrate 5 between two transparent plates 6 and 7 in a sandwich manner, and is attached to the opening 3a of the knob 3. 8 is a display section consisting of a half mirror layer 9, a transparent chromatic layer 10 and an opaque layer 11;
is formed on the surface of the transparent plate 60 facing the outside of the knob 3 by sputtering or vapor deposition of aluminum, for example.
A chromatic color 1110 is attached to the surface of the half-mirror single layer 9. Furthermore, the non-transparent layer 11 is formed on the surface of the chromatic layer 10 by removing the representation part 12 indicating the internal air circulation symbol, for example, by a handling chamber, as shown in FIG. On the other hand, 13 $;i: is a light bulb as a light source installed in the case 2, and the light bulb 4 is positioned between the light bulb 13 and the display section 8.

Next, the operation of the above configuration will be explained. At day and night,
The light bulb 13 is normally turned off, and the external light rays incident on the representation part 12 of the non-transparent layer 11 are chromatic as shown by the arrows in FIG. 1io and is reflected by the half mirror layer 9.

Further, at night, the light bulb 13 is energized and the light beam from the light bulb 13 passes through the transparent plate 7, the filter 4, the transparent plate 6, and the half mirror layer 9 in this order, as shown in FIG. 2, and is irradiated onto the chromatic color layer 10. .

In this way, according to the two embodiments, during the daytime +i and 'I, external light is reflected by the half mirror 9, and at night the light bulb 13 is reflected.
The light rays pass through the half-mirror layer 9 and are irradiated to the chromatic color layers 10, so that the representation portion 12 of the non-transparent layer 11 is displayed in color that matches the chromatic color layer 10 regardless of day or night. A color display state with high clarity can be obtained.

However, since there is no need to add a white substance to the chromatic color layer 110, the light from the bulb 13 is not diffusely reflected by the chromatic color layer 10 at night. Therefore, no light is reflected from the front window and the driver is not dazzled.

Moreover, in this embodiment, since the filter 4 is especially provided, the chromatic color layer 10 is irradiated with only highly linear light, and the reflected light from the freon 1 to the glass can be eliminated. An anti-glare effect can also be obtained.

Next, FIG. 4 shows a second embodiment of the present invention, and the difference from the first embodiment is that a polarizing plate 1 is used instead of a filter 4.
4 is provided, and a metallic film 16 is attached to the surface of the transparent light plate 6 as a single layer of a half mirror.

Note that instead of the metallic film 16, a single half-mirror layer may be formed by so-called metallic printing using transparent ink in which metal particles such as aluminum are suspended.

Furthermore, FIG. 5 shows a third embodiment of the present invention. In this third embodiment, for example, a chromatic metallic layer 1 in which a chromatic layer and a half-mirror layer are integrally mixed on the surface of the transparent plate 6.
7 is integrally formed to have the functions of both layers 11.

Next, FIG. 6 shows a fourth embodiment of the present invention, which differs from the above embodiments in that a display panel 18 made of polycarbonate or the like is provided between the filter 4 and the display section 8. . In this case, the half mirror layer 9 may be placed on either side of the transparent plate 6 or the transparent panel 1, or the transparent panel 18 may be formed in a chromatic color and the chromatic color H10 may be omitted.

The four chromatic layers 10 in the first, second, and fourth embodiments of the present invention may be formed of a colored film, a colored sheet, an alumite layer, or the like.

Furthermore, in the case of the first embodiment, since the half-mirror single layer 9 was formed by sputtering or the like, this half-mirror single layer 9 may also be used as a chromatic color layer, that is, used as it is as a representation part with a metallic feel. .

In addition, the non-transparent layer 11 in each of the above embodiments has characters,
It may also be formed from a plate with a stamped representation such as a symbol. Other modifications may be made without departing from the spirit of the present invention.

As described above, according to the present invention, it is possible to provide a display device that can display characters, symbols, and other representations in color, and can provide a color display state with high clarity regardless of day or night.

[Brief explanation of drawings]

1 to 3 show a first embodiment of the present invention;
2 and 2 are longitudinal sectional views showing mutually different operating states,
FIG. 3 is a front view of the non-transparent layer, FIG. 4 is a vertical cross-sectional view of the main part showing the second embodiment of the present invention, and FIG. 5 is equivalent to FIG. 4 showing the third embodiment of the present invention. FIG. 6 is a diagram corresponding to FIG. 1 showing a fourth embodiment of the present invention. In the figure, 2 is a case, 2a is an opening, 4 and 15 are filters, 8 is a display part, 9 is a half mirror layer, 10 is a chromatic layer,
11 is an opaque layer, 12 is a representation part, and 13 is a light bulb (light source).
, 16 is a metallic film, and 17 is a colored metallic layer.

Claims (1)

[Claims] 1. A case whose interior is shielded from light except for the opening, and a half-mirror layer provided at the opening of this case, a translucent chromatic layer, and other representations such as letters and symbols. A display device comprising a display section made of a formed non-transparent layer and a light source that illuminates the display section. 2. The display device according to claim 1, characterized in that the half mirror layer and the chromatic layer are integrally formed in a mixed state. 3. #t1 A case whose interior is shielded from light except for the opening, a half-mirror layer provided at the opening of this case, a translucent chromatic layer, and an opaque layer formed except for the representations such as letters and symbols. A display device comprising a display section made of a light-sensitive layer, a light source provided within the wreath for illuminating the display section, and a filter having polarization or light adjustment properties provided between the light source and the display section. 4. The display device according to claim 3, wherein the half mirror layer is formed by sputtering or vapor deposition. 5. The display device according to claim 3, wherein the half mirror layer is made of a metallic film. 6. Features that the single layer of the half-mirror is formed by metallic printing! tm, the display device according to item 3. 7. The display device according to claim 3, wherein the half-mirror layer and the chromatic layer are integrally formed in a mixed state.