JPS5820432B2 - Kagami - Google Patents

Description

[Detailed description of the invention] The present invention relates to a mirror having a function of displaying time and the like.

The present applicant has already proposed a device of this type in which a reflective liquid crystal display is provided in a portion of the mirror, and this display is driven as necessary to display the time and the like.

The following two examples are given as specific configurations of this device.

The first is a configuration in which the glass plate that makes up the mirror is used as one glass electrode plate that makes up the liquid crystal display, and therefore, the glass plate that makes up the mirror is used as one of the glass electrode plates that make up the liquid crystal display. The device is formed by two glass plates.

However, this configuration has the disadvantage that it is necessary to perform various operations to form the liquid crystal display on a large glass plate that serves as a mirror, making the manufacturing process larger and more complicated.

Furthermore, if a defect occurs in the liquid crystal display portion, the entire mirror becomes defective, increasing the product cost.

In order to eliminate this drawback, a second structure of the device has been proposed.

This is a structure in which a transparent area 2, which is not coated with a reflective substance, is provided in a part of the mirror 1, as shown in FIG.

According to this configuration, the mirror and the liquid crystal display can be made separately and then bonded together, which greatly simplifies the manufacturing process and also checks for defects at the stage when the liquid crystal display is constructed. Therefore, the manufacturing yield at the stage of bonding the two is much higher than that of the first conventional example, and the product cost is reduced.

However, in the case of this second configuration, the boundary 4 between the mirror portion 1 and the liquid crystal display 3 is easily noticeable, and especially when the display 3 is not driven and the entire surface is used as a mirror, the entire surface is not uniform and uneven. Because it gives a natural feel, its commercial value as a mirror is low.

The present invention has been made in view of this problem, and an object of the present invention is to obtain a device that is easy to manufacture and has high commercial value as a mirror.

The device of the present invention that achieves this purpose has the following configuration as its gist.

First, the basic configuration is the same as the second conventional example, but in this conventional example, when coating or vapor depositing a reflective material on the first glass plate, the reflective material is applied to the first glass plate except for the entire part 2 where the liquid crystal display 3 is attached. In contrast, the present invention is characterized in that only the display pattern portion is removed.

If the liquid crystal display 3 is used to display the time etc.,
This display pattern matches the pattern of the segment electrodes of the liquid crystal display 3.

The apparatus of the present invention will be described in detail below with reference to examples.

FIG. 2 is a plan view of an apparatus according to an embodiment of the present invention, particularly showing the apparatus viewed from the side of a large glass plate 10 constituting a mirror.

The glass plate 10 has display patterns (hereinafter referred to as segment patterns) 11, 11, . . . for displaying the time.
A reflective material 12 such as lt is applied except for the portions marked with....

As shown in FIG. 3, a separately formed liquid crystal display 1-3 is attached to the back surface of the glass plate 10.

The position where the liquid crystal display 1-3 is pasted is the position shown by the dotted line in FIG. 2, and this position is between the segment electrodes 14, 14, .
The segment pattern 11°11... on 0 is the matching position.

Therefore, of course, the segment pattern 11 on the glass plate 10,
11... and the segment electrodes 14°14... on the liquid crystal display 1-3 must be formed in the same shape.5 In Fig. 3, 15 and 16 are The first and second glass plates 17 forming the liquid crystal display 13 are spacers.

18 is a liquid crystal material, and 19 is a reflective electrode.

In this embodiment, the segment electrodes 14, 14...
・It is formed from a transparent conductive film.

FIG. 4 is a sectional view taken along the line AA' of the device shown in FIG. 2, and shows the structure at the stage where the liquid crystal display 13 is attached to the glass plate 10.

FIG. 5 shows another embodiment of the present invention, in which the electrode 20 on the side of the liquid crystal display 13 close to the glass plate 10 is shown in FIG.
is a common electrode based on a transparent conductive film, and the electrode 2 on the other side is
1 is a segment electrode made of reflective metal.

In the device of the present invention, on the glass plate to which an electro-optical display such as a liquid crystal is pasted from the back, a mirror surface is formed leaving only the segment pattern, and the display is placed in such a manner that the display pattern matches this portion. It is characterized by a pasted structure. Therefore, at the stage where the display body is pasted, there is no unnaturalness in which the boundary between the display body and the mirror surface stands out as in the conventional example shown in Fig. 1 above, and the display body Even when driving the display to display time or the like, only the segment portions occupy the display area, resulting in extremely smooth display.

Also, if the display body is not driven and the entire display is used as a mirror,
Since the boundary between the display body and the mirror surface is inconspicuous and the mirror surface is uniform, it can be used in practical use as a mirror.

At this time, even when the display is not driven or when the time is displayed, the segment portions not involved in display have a mirror surface over the entire surface because the reflective electrodes in the display form part of the mirror surface.

In addition, the device of the present invention basically has a configuration in which an electro-optical display such as a liquid crystal is pasted on the back side of a mirror, and since the mirror and display can be prepared separately, the manufacturing process is easy and when integrated. Yield is high and product cost is reduced.

In the above embodiment, a liquid crystal display is used as the electro-optical display, but in addition to the liquid crystal display, a so-called photochromic display that utilizes a coloring phenomenon caused by redox of an electrolytic substance may also be used. It goes without saying that the apparatus of the present invention can be sufficiently constructed even if the above is used.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram of a conventional device, FIG. 2 is a plan view of an embodiment of the device of the present invention, FIG. 3 is an explanatory diagram of the configuration of the device shown in FIG. 2, and FIG. 4 is a configuration diagram of the device shown in FIG. 2. 5th sectional view on line A-N of
The figure is a sectional view of another embodiment of the device according to the present invention. 10... Glass plate, 11... Display pattern (segment), 12... Reflective material, 13
. . . Liquid crystal display, 14 . . . Segment electrode.

Claims (1)

[Claims] 1. A mirror characterized in that a reflective electro-optical display body is integrally bonded to the back surface of a glass plate, which is mirror-finished except for the display pattern portion, with a matching display pattern.