JPH0610976U - Display device - Google Patents

Abstract

(57) [Summary] [Object] To provide a display device that can change the display mode relatively easily while being low cost. [Structure] A plurality of LEDs 2 arranged in a matrix so as to form rows and columns are arranged on a substrate 3, and a selected one of these LEDs 2 is covered with a light-shielding cap 4, and Block the light emitted. As a result, specific information is displayed according to the light and dark aspect provided by the entire LED 2. [Effect] By changing the arrangement of the light-shielding cap,
The display mode can be changed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a display device adapted to display specific information according to a light emitting mode of a plurality of light source elements arranged in a matrix so as to form rows and columns.

[0002]

[Prior art]

 For example, in the field of advertising, in order to display specific information, a light source is placed behind a panel on which letters, symbols or figures are drawn with a combination of transparent and opaque parts, and the light emitted from the light source causes A so-called "line-lamp type" display device is used in which characters, symbols or figures are embossed.

Further, by providing a plurality of light source elements arranged in a matrix so as to form rows and columns, and controlling so that light is emitted from only a specific one of these light source elements, the entire light source element is There is also a so-called "dot matrix type" display device in which desired information is displayed according to the lightness and darkness provided by.

[0004]

[Problems to be solved by the device]

 Among the two types of display devices described above, the "lighting lamp type" display device requires the panel itself on which letters and the like are drawn to be replaced when changing the display form, and the display form can be easily changed. There is a problem that there is no.

On the other hand, the “dot matrix type” display device has an advantage that the display mode can be easily changed, but the cost is high because, for example, a character ROM, a complicated control circuit, etc. are required. There is a problem.

Therefore, an object of the present invention is to provide a display device which can be made much lower in cost than a conventional “dot matrix type” display device and which can relatively easily change a display mode. Is to

[0007]

[Means for Solving the Problems]

 In order to solve the above-mentioned technical problem, a display device according to the present invention blocks a plurality of light source elements arranged in a matrix in rows and columns and light emitted from a specific one of the light source elements. Thus, a plurality of light-shielding caps detachably attached to each of the selected ones of the light source elements are provided in order to display specific information according to the lightness and darkness provided by the entire light source elements.

[0008]

[Action]

 In the display device according to the present invention, by covering the specific light source elements with the light-shielding cap, the light emitted from these specific light source elements is blocked, thereby displaying specific information in the light and dark mode provided by the entire light source element. can do.

[0009]

[Effect of device]

 Therefore, according to this invention, since the light-shielding cap is removable, the display mode can be easily changed by changing the light source element that covers the light-shielding cap. Such a change of the display mode is a manual operation and does not require the above-mentioned character ROM or complicated control circuit. Therefore, although the display mode can be changed, the display device can be manufactured at low cost. Can be achieved with.

Further, in the conventional “dot matrix type” display device, the display mode thereof is limited to a preset one due to the limitation coming from the character ROM, the control circuit and the like. On the other hand, in the display device according to the present invention, specific information is displayed by simply selecting the light source element that covers the light-shielding cap, and therefore the display mode is not limited in any way. , You can choose at will. Therefore, for example, it is possible to display half-width or quarter-width characters, or display in which characters of various sizes are mixed, and it is possible to enrich the variety of display modes.

Further, according to the present invention, it is possible to easily change the display mode not only for a specific specialist worker but also for a general consumer-level person. Therefore, even if the display mode needs to be changed after the display device is installed, it is not necessary to call a professional worker.

It is desirable that the display device according to the present invention is particularly directed to applications in which it is not necessary to frequently change the display mode. Further, according to the display device of the present invention, at least two kinds of displays can be constantly provided by controlling the power supply to the entire light source element.

[0013]

【Example】

 FIG. 1 is a front view of a display device 1 according to an embodiment of the present invention. FIG. 2 is an enlarged perspective view showing a part of the display device 1 shown in FIG.

The display device 1 includes an LED (light emitting diode) 2 as a light source element. The plurality of LEDs 2 are arranged in a matrix in rows and columns while being held by the substrate 3. These LEDs 2 all light up when the power is turned on.

A light-shielding cap 4 is put on a specific one of the LEDs 2 described above. The light-shielding cap 4 is made of, for example, opaque rubber. As best shown in FIG. 2, a light-shielding cap 4 is respectively overlaid on each of the selected LEDs 2. When the light-shielding cap 4 is made of rubber as described above, the elasticity and friction of the light-shielding cap 4 can keep the state in which the light-shielding cap 4 covers the LED 2 without using any special fixing means. . The light-shielding cap 4 can also be pulled out from the LED 2 if necessary.

In FIG. 1, the light-shielding cap 4 is shown by a black circle. These light-shielding caps 4 block the light emitted from the LEDs 2 that they cover, thereby displaying specific information in the manner of light and dark provided by the LEDs 2 as a whole. In FIG. 1, for example, the display of "mountain" is given by a blank character. In the display of the "mountain", by modifying the arrangement of the light-shielding cap 4, for example, a character modification such as "brush" can be made, and the character can be a familiar character. In FIG. 1, 16 × 16 = 256 LEDs 2 are arranged, but such a number is arbitrary. For example, by increasing the number, the character modification and the like can be made more flexible. You will be able to do it.

By arranging a plurality of display devices 1 with the above-described display device 1 as one unit, or by enlarging the substrate 3 and arranging a larger number of LEDs 2 thereon, For example, words can be displayed.

FIG. 3 is a front view showing a traffic sign 5 as a preferred application example of the display device according to the present invention. FIG. 4 is a side view of the traffic sign 5 shown in FIG. In FIGS. 3 and 4, elements corresponding to those shown in FIGS. 1 and 2 are designated by the same reference numerals, and redundant description will be omitted.

The traffic sign 5 includes a display device 1a having substantially the same structure as the display device 1 shown in FIGS. The display device 1a includes, for example, an octagonal substrate 3a, on which a plurality of LEDs 2 are arranged in a matrix so as to form rows and columns.

The substrate 3 a is covered with a cover 6, and the cover 6 is provided with, for example, a circular window 7 that exposes the LEDs 2. On the back surface of the substrate 3a, there is provided a case 8 containing a circuit for adjusting the power supply voltage applied to the LED 2 and the like. A power cord 10 with a plug 9 connected to a commercial power source is led out from the case 8. Further, on the back surface of the case 8, bolts 11 and nuts 12 used when the traffic sign 5 is installed at an appropriate place are provided.

Referring to FIG. 3, display device 1 a provides a “stop” display by disposing light-shielding cap 4. This is a display that means, for example, "stop", and the LED 2 is turned on when the viewer wants to recognize this display.

Of course, the display mode can be changed by changing the arrangement of the light-shielding cap 4.

In the above-described embodiment, the light-shielding cap 4 is arranged to give the display of the so-called “blank character”, but the light-shielding cap 4 can be arranged so as to reverse the distribution of light and darkness of the display. .

Further, in the above-described embodiment, the LED 2 is used as the light source element, but it may be replaced with a light source element such as an incandescent lamp. When using an incandescent bulb, the light-shielding cap is preferably made of a heat-resistant material.

[Brief description of drawings]

FIG. 1 is a front view showing a display device 1 according to an embodiment of the present invention.

FIG. 2 is an enlarged perspective view showing a part of the display device 1 shown in FIG.

FIG. 3 is a front view showing a traffic sign 5 as a preferred application example of the display device according to the present invention.

FIG. 4 is a side view of the traffic sign 5 shown in FIG.

[Explanation of symbols]

 1, 1a Display device 2 LED (light source element) 4 Light-shielding cap

Claims (1)

[Scope of utility model registration request] 1. A plurality of light source elements arranged in a matrix so as to form rows and columns, and specified by a mode of light and dark provided by the entire light source element by blocking light emitted from a specific one of the light source elements. A plurality of light-shielding caps that are detachably attached to each of the selected ones of the light source elements to display the information of 1.