JPH01221787A - Display device - Google Patents

Abstract

PURPOSE:To improve the operability of a display device and to prevent erroneous display of the device by covering openings through which rays of light of light sources are transmitted with freely openable/closeable covers and making the openings bright or dark by opening or closing the covers. CONSTITUTION:Openings 2 formed on the display surface of a case 1 are covered with freely openable/closeable covers 6 and plural display elements 10 respectively provided with light sources 3 which turn on/off interlockingly to the opening/closing of the covers 6 behind the light source leading out sections adjacent to the openings 2 are provided in the case 1. Therefore, when the covers 6 are opened and the openings 2 are exposed, the openings 2 become become bright by the rays of light of the light sources 3 and, when the covers 6 are closed, the openings 2 are closed and no light is seen. Characters and numerals are formed by the combination of the bright points and dark points thus produced. Even when display surfaces are formed on both of the front and back surfaces of the case 1, one piece of light source 3 can be used for displays on both front and back surfaces, since the openings 2 are closed when the covers 6 are closed. Therefore, with a simple structure, displays can be made on both of the front and back surfaces of a device and operation and confirmation of the turning on/off of light emitting sources become easier, thereby preventing the erroneous displays.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a display device that uses light beams.

[Conventional technology]

There are many types of display devices, including those in which characters, figures, etc. are simply drawn on a display board, those in which a luminescent material such as a filament or diode is used as a display element and arranged in an array, and those in which an inversion plate is used as a display element. In order to be clearly visible even at night, a fairly powerful light source is required, and many of the structures, such as so-called neon signs, are complex and expensive.

Therefore, as a display device with a simple structure and low cost, there is a conventional display device shown in Japanese Patent Application Laid-Open No. 56-51775, in which a light emitting source is housed in a box formed of a light-shielding plate and having an opening on the front. A colored translucent plate is placed in the front opening of each of these boxes, and a desired character is displayed by causing a desired one of the light emitting sources to emit light.

[Problem to be solved by the invention]

In this way, since the desired character is displayed only by lighting the light emitting source, the block portion where the light emitting source is lit always forms part of the character.

For this reason, for example, if a display section is to be formed on both the front and back sides of a display device, it is necessary to provide separate light sources for the front and back sides, and it is not possible to share the light source. As a result, the device becomes larger and the cost becomes higher.

In addition, it is necessary to separately provide an operation switch section to turn on the required light source, and if this operation switch section is installed in a place isolated from the display device, only the light source of the required section will be turned on. It is often difficult to confirm whether the light is on or not, and there is a risk of erroneous display.

The purpose of the present invention is to solve the above-mentioned disadvantages of the conventional example, to have a simple structure, display on both sides of the device, wide range of use, and simple operation and confirmation of turning on and off the light emitting source. An object of the present invention is to provide a display device that can prevent display.

[Means to solve the problem]

In order to achieve the above object, the present invention covers an opening formed on a case display surface with a lid that can be opened and closed, and a light source that turns on and off in conjunction with the opening and closing of the lid is installed behind a light source lead-out section connected to the opening. The gist is to arrange a plurality of display elements in a case.

[Effect]

According to the present invention, when the lid is opened to reveal the opening, the opening appears to shine due to the light rays from the light source, and when the lid is closed, the opening is blocked and no light is visible. is formed. Even when display surfaces are formed on both the front and rear sides of the case, the opening is closed when the lid is closed, so 1.
Light sources can be shared between the front and rear displays.

〔Example] Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a front view showing an embodiment of the display device of the present invention, and FIG.
The figure is a vertical sectional side view of the same as above, and this display device has seven display elements 10 arranged in a mouth shape in a case 1. An opening 2 is formed in the front of the case 1, and a light source 3 is provided behind the opening 2. is arranged, and the space from the light source 3 to the aperture 2 is covered with a reflective plate 4,
A red filter 5, for example, is attached to the front surface of the opening 2 as a light source lead-out section.

Reference numeral 6 in the figure is a lid that covers the opening 2, and the lid 6 has, for example, a protrusion 6a made of a magnetic material, and the other side is rotatably attached to the case l by a hinge 7, for example. A magnet 8a is provided on the case l that the protruding piece 6a contacts in the closed position of M6, and a magnet 8b and a switch 9a for the light source 3 are provided on the case 1 that the protruding piece 6a contacts in the open position.

In this way, the light source 3, the aperture 2, the reflector 4, the red filter 5, and the M6 constitute a display element 10, and seven display elements 10 are arranged on the front surface of the case 1 in a diagonal pattern, for example. It now displays numbers, letters, and figures from 9 to 9.

Furthermore, as shown in Fig. 2, there is also an opening 2 on the back side of the case l.
The display element 10 is arranged in the same manner as the front surface so that the light source 3 is shared, so that it can be used on both sides. In addition, a switch 9b for the light source 3 that comes into contact with the lid 6 in the open position is provided, and as shown in FIG. Provided on the display element. The lid 6 is not limited to the opening/closing type as described above, but may be a sliding type.

In this way, the display device A of the present invention is constructed. For example, as shown in FIG. It can also be used as a price display device 12 for other purposes.

Next, to explain the operation and usage, when the lid 6 is not in use and there is no indication, the lid 6 is closed to cover the opening 2, and the protrusion 6 is closed.
a is attracted to the magnet 8a and maintained in the closed state. In this state, switch 9a.

Since 9b is open, the light source 3 is not energized and is turned off.

When displaying numbers, when the M6 of the display element 10 corresponding to the shape of the number to be displayed is opened by hand via the hinge 7, the protruding piece 6a is connected to the switch 9a (or 9b if it is on the back side).
) to close it, so light source 3 is energized, and light source 3
lights up. The light rays emitted from the light source 3 are reflected by the reflector 4 and projected outside through the red filter 5, so the entire aperture 2 appears uniformly red, and the light source 3 is not directly visible from the outside. There is no glare, so there is no glare.

In this state, the protruding piece 6a is attracted to the magnet 8b and the lid 6 is kept open. At this time, even if the back side 16 of the open shell 6 is closed and the switch 9b is open, the switch 9a and The switch 9b is connected in parallel as described above, and since this parallel connection circuit is connected in series to the light source 3, the power to the light source 3 is maintained, and on one display surface side, when the light source 3 is turned on, the aperture 2 is opened. On the other display surface side on the opposite side, the light rays from the light source 3 are blocked by M6, and the aperture 2 does not shine brightly.In this way, the light source 3 can be shared by the display devices 10 on the front and back sides, saving power. useful for.

As described above, the display elements 10 at positions corresponding to the desired number shape are lit for each display device A, and the device shown in FIG. 4 displays, for example, a price of 160 yen as a gasoline unit price.

In addition, in the first embodiment described above, the lighting and extinguishing of the light source 3 is linked to the opening and closing of the lid 6, but the invention is not limited to this. may be performed by a separately provided switch. In this case, for example, all the light sources 3 are turned on, and the opening 2 can be made bright or dark by opening or closing M6.

〔Effect of the invention〕

As described above, when the display device of the present invention performs display by guiding the light rays from the light source behind the light source to the light source lead-out part, the opening through which the light rays from the light source pass is covered with a cover so as to be openable and closable. By opening and closing, we made the opening different from brightness to darkness, so
Since the brightness and darkness of the aperture can be adjusted while viewing the display near the display, it is easy to operate, and the display operation can be performed reliably without the risk of erroneous display.

Furthermore, since the dark state of the opening can be achieved by blocking the light rays with a lid, the light source can be shared by the front and back display devices, and the range of use can be expanded without increasing the size of the device.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of the display device of the present invention, and FIG.
3 is an electric circuit diagram of the embodiment, and FIG. 4 is a perspective view showing an example of use of the embodiment of the present invention. ■...Case 2...Aperture 3...Light source
4... Reflector plate 5... Filter
6...Lid 6a...Protruding piece 7...Hinge 8a
, 8b... Magnet 9a, 9b... Switch 10.
... Display element 11 ... Panel 12 ... Price display device 13 ... Leg A ... Display device

Claims (1)

[Claims] A display device characterized in that an opening formed in a display surface of the case is covered with a cover that can be opened and closed, and a plurality of display elements each having a light source provided behind a light source lead-out part connected to the opening are disposed in the case.