JPH0227675B2 - DEISUPUREIKENYOKAGAMISOCHI - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a novel display mirror that normally functions as a mirror, but can be used as a display panel by electrical switching.

Display panels for various warnings such as low fuel, handbrake, exhaust temperature, etc. are generally installed in the interior of a vehicle. Furthermore, some vehicles are equipped with a display panel that allows the cause of any failure to be immediately determined. These display panels are typically mounted on the dash board or in a position around the driver's seat that is easily visible to the driver. However, the area around the driver's seat is filled with various panels, including the dash board, making it difficult to insert an empty space. For this reason, there has been a need for a multipurpose display panel mirror that can be used, for example, as a rearview mirror and as a display panel at the same time.

The present invention has been made in view of the above background, and normally has the same function as a conventional rearview mirror, for example, has a simple configuration, and can also be used as a display panel while maintaining the function as a mirror. The present invention provides a novel functional multi-purpose display/mirror.

The main structure of the present invention is that the light-emitting display section is integrally processed on the back surface of the light-transmitting mirror plate, or the mirror section and the light-emitting display section are bonded together in close proximity. When the mirror is lit, it functions as a display through a semi-transparent mirror, and when it is not lit, most of the light incident on the mirror surface is reflected, functioning as a mirror.

Next, one embodiment of the present invention will be described based on the drawings. In FIG. 1, on one side of a transparent glass substrate 1, several tens to ten
A thin aluminum film 2 of 200 angstroms, preferably around 100 angstroms, for example 130 angstroms, is deposited. Using this aluminum thin film as one electrode, an organic dispersed electroluminescent light emitter 3 as an electro-optic element is printed and fired, and the surface of the light emitter 3 is conductive with a pattern in the shape of significant characters or marks of a display panel. The electrode 4 is printed and fired, and a display/mirror device is constructed.

The transparent substrates 1 and 2 on which a thin aluminum film having a thickness of about 130 angstroms is deposited are semi-transparent to light. Now, when the organic dispersed electroluminescent light emitter 3 is printed and fired on this translucent aluminum film, since this light emitter itself is non-transparent to light, the side on which this light emitter is not printed, that is, the side indicated by the arrow When this board is viewed from direction A, it becomes a simple mirror. On the other hand, when a voltage is applied to the light emitter 3 via the aluminum thin film 2 and the electrode 4 to turn it on, the light emitted from the light emitter 3 passes through the thin aluminum film 2 and exits the transparent substrate. Get out. Therefore, in this case, the display emits light in the direction of arrow B along the significant characters and marks.

When this device is used as a rearview mirror of an automobile, it is attached to the housing 5 so that the glass substrate 1 is exposed. This housing 5 is connected to a support arm 7 via a rotation adjustment part 6,
It is supported by the vehicle ceiling. A lead wire 8 that transmits electrical signals to the aluminum thin film 2 and several lead wires 9 that transmit electrical signals to the electrode 4 are extended toward the vehicle body through the hollow part of the support arm 7 and connected to an electrical control circuit 10. Ru. Circuit 10 is main switch 1
When 0A is applied, power is supplied from the on-vehicle battery 12, and when various detection switches and signal generators 11 are closed, a required voltage to be applied to the significant characters or marks is created and applied.

FIG. 2 shows the display surface of the display panel.
1a is a surface that always functions as a mirror, and 1b is a surface that normally functions as a mirror, emits light under certain conditions, and displays various information about the vehicle in text.

It should be noted that the present invention is not limited to the embodiments described above, and the types of emitters such as vapor deposited materials and luminescent materials as reflective films for mirrors can be replaced with other types. Furthermore, as for the manufacturing method, if the electroluminescent element is formed as a thin film by vapor deposition, it is possible to create a smaller and lighter mirror that also serves as a light source. Furthermore, by forming the conductive electrode 4 in a predetermined pattern, it can be used not only as a mere light source but also as a display for significant marks and the like.

As described above, since the display/mirror device of the present invention is both a mirror and a display board, for example, when used as a room mirror in the interior of a car, when the light is not lit, a part of the mirror is Only the necessary information is displayed while the other parts maintain their function as a mirror, ensuring rearward visibility. Therefore, the position of the rearview mirror, which is extremely easy to see for the driver, can be used as the position of the display panel that does not fit on the dash board.

In addition, in the present invention, since the electro-optical element and the electrode are formed on the semi-transparent mirror layer, there is no need for a support member for the light source provided behind the semi-transparent mirror layer, and the front glass is supported. It has the excellent effect of being able to hold these components with only a single layer, and that the overall thickness can be reduced by laminating them, making it easy to incorporate them into a housing or the like.
Furthermore, since the semi-transparent mirror layer and the electro-optic element are formed in contact with each other, the distance between the light source and the semi-transparent mirror layer becomes almost zero, and therefore the light from the light source is efficiently transferred to the semi-transparent mirror. The light is generated to the outside through the layer, and has the excellent effect that clear information can be displayed even if the luminance of the electro-optical element is low. Furthermore, since one electrode for applying voltage to the electro-optical element is made of a semi-transparent mirror layer so that it also functions as a semi-transparent mirror layer, there is an excellent effect that the structure can be simplified.

[Brief explanation of drawings]

The attached drawings show one embodiment of the present invention.
The figure is a configuration diagram showing a main part in cross section, and FIG. 2 is a plan view of the display part. DESCRIPTION OF SYMBOLS 1... Transparent glass substrate, 2... Aluminum thin film, 3... Electroluminescent light emitter, 4
……electrode.

Claims (1)

[Claims] 1. A transparent glass, which is disposed in close contact with the entire surface of one side of this transparent glass, and uniformly reflects light incident from the front side through this transparent glass, and reflects light from the back side. A conductive semi-transparent mirror layer that transmits a portion of applied light; an electro-optical element that is formed on the semi-transparent mirror layer and emits light by itself when a voltage is applied; It is characterized by comprising an electrode formed in the shape of information to be displayed, and an electric control circuit that applies a voltage between the semi-transparent mirror layer and the electrode to cause only a part of the electro-optical element to emit light by itself. A mirror device that doubles as a display.