JPH10228250A - Electric illumination display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a suitable electric illumination display function and to lower the manufacture cost and to reduce the weight without requiring a large power source. SOLUTION: This device is equipped with a display surface 12 where many arrays 15 of many light emitting elements 14 which are arranged closely in a longitudinal direction Y at equal intervals are arrayed roughly at equal intervals in a lateral direction X crossing the longitudinal direction Y at right angles and a controller which makes many light emitting element arrays 15 illuminate in order in the lateral direction X so as to display characters, etc., on the display surface 12 by making good use of after-image effect.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to an electronic display device.

[0002]

2. Description of the Related Art Conventionally, high-intensity light-emitting diodes (hereinafter referred to as "LEDs"), which are light-emitting elements, are arranged in a matrix (full matrix) over the entire surface. There is an electronic display device that displays characters, symbols, figures, and the like by displaying. This lightning display device is used, for example, for outdoor notice towers and the like. According to this conventional light-emitting display device, the light-emitting diode at a desired position can blink on the entire display surface, so that a still image over the entire display surface can be displayed and a long message can be read slowly by the viewer. Can flow slowly.

[0003]

However, in the conventional full-matrix electro-optical display device, since the entire surface is illuminated and displayed, there is a problem that the power consumption is large and a large power source is required. In addition, the full matrix requires a very large number of LEDs and complicates the structure. Therefore, there is a problem that the manufacturing cost cannot be reduced and the weight cannot be reduced.

An object of the present invention is to provide an electro-optical display device which has a suitable electro-optical display function and does not require a large power supply, so that the manufacturing cost can be reduced and the weight can be reduced.

[0005]

The present invention has the following arrangement to achieve the above object. That is, the present invention
In a plane, a large number of light emitting element rows in which a large number of light emitting elements are arranged in a line in the first direction at equal intervals and densely are arranged at equal intervals in a second direction orthogonal to the first direction. And a control device for sequentially emitting light in the second direction in the second direction so as to display characters and the like on the display surface by using an afterimage effect. I do.

Further, according to the present invention, the display surface is provided on a surface of a main body having a rectangular panel shape, the control device and a power supply portion are built in the main body, and a handle is mounted on an upper side wall. As a result, portability can be improved by being detachably provided on the support leg.

[0007] Further, by providing a plurality of changeover switches corresponding to a plurality of signs stored in the control device so that a desired display can be selectively displayed from the plurality of signs, various sites can be provided. Can be suitably dealt with.

Further, the present invention provides a light emitting element array in which a plurality of light emitting elements are arranged in a plane at equal intervals in a first direction and densely in a second direction orthogonal to the first direction. Also, a display surface provided in a large number of rows arranged densely at equal intervals, and a predetermined interval among the plurality of light emitting element rows is provided so that characters and the like are displayed on the display surface using an afterimage effect. There is also provided an electronic display device comprising: a control device for causing some of the positioned light emitting element rows to sequentially emit light in the second direction. This also allows a reduction in manufacturing cost and weight without requiring a large power supply.

Further, since at least a part of the power source for causing the light-emitting element to emit light is a solar cell, a portable electronic display device which can be used for a long time even in a place where no AC power source is provided can be obtained. That is, since the electric light display device has low power consumption, the electric power from the solar cell can be used effectively, and the electric light display function can be suitably maintained.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments according to the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a front view showing an embodiment of the electro-optical display device according to the present invention, and FIG. 2 is a side view showing the embodiment of FIG. FIG. 3 is a central longitudinal sectional view of the main body of the embodiment of FIG.

Reference numeral 10 denotes a main body, which is formed in a rectangular panel shape, and is provided on the support leg 50 so as to be detachable in a cartridge manner. A rectangular display surface 12 is provided on the surface of the main body 10. In addition, a handle 40 is attached to the upper side wall of the main body 10, and a control device 20 and a power supply section 30 are built in the main body 10, as shown in FIG.

On the display surface 12, a large number of LEDs 14, which are light-emitting elements that emit light when energized, are arranged in a line and densely at equal intervals in the vertical direction Y, which is the first direction, on the display surface 12. A large number of rows 15 are arranged roughly at equal intervals in the horizontal direction X, which is a second direction orthogonal to the vertical direction Y. In the present embodiment, 32 LEDs are arranged in a row and densely on the display surface 12 having a length of about 30 cm and a width of about 75 cm to form a light emitting element row 15, and the light emitting element row 15 is predetermined in the horizontal direction. (15 rows) at intervals.
That is, as shown in FIG. 1, when compared with the full matrix, the light emitting element rows 15 are arranged at equal intervals in a ratio of one row to five rows in the horizontal direction. Further, as shown in FIG. 3, a large number of LEDs 14 arranged in a plane
6 (for example, an acrylic plate). As the LED, a high-brightness LED that can be clearly seen even under direct sunlight outdoors may be used.

The control device 20 is a computer control device composed of an arithmetic device, a memory device, and the like. The control device 20 controls a large number of light emitting element arrays 15 so as to display characters and the like on the display surface 12 using an afterimage effect. Control is performed so as to sequentially emit light in the second direction. The afterimage effect is a feeling that the light remains in the sight (retina) even after the light emission stops. For example, a large number of LEDs (light emitting element rows) arranged in a line in the vertical direction Y
While moving in the lateral direction X relative to the viewer,
It is used for a display device that displays characters, figures, and the like by appropriately blinking D.

In this embodiment, the after-image effect generated by relatively moving the light-emitting element array and the viewer as described above is not used.
In order to cause each LED to emit light corresponding to characters and the like sequentially from the light emitting element row 15a at one end to the light emitting element row 15p at the other end by control by 0, the light emitting element row and the viewer are relatively moved. The state is substantially the same as the case of the movement, and the afterimage effect can be suitably used. The speed at which light is sequentially emitted from the light emitting element array 15a at one end to the light emitting element array 15p at the other end is preferably within a few seconds, and a message such as a character flows (moves) in the horizontal direction X from the viewer. appear. That is, the viewer can read the message in a short time within a few seconds, and can appropriately recognize the message even when he cannot look aside, such as a driver of a traveling car.

As described above, since the afterimage effect can be suitably used, a message such as a character appears to be displayed in a full matrix at a distance of about 10 meters. When viewed from a farther distance (eg, about 200 meters away), the message appeared sharper. Since the high-brightness LED 14 was used, its luminous intensity was sufficient.

Further, according to the present embodiment, the number of LEDs 14 is extremely small and the power consumption is small as compared with the case where the LEDs 14 are arranged in a full matrix, so that a message can be sufficiently displayed even with a low voltage power supply of about 6 V. . Therefore, a rechargeable battery or a dry battery can be used as a power source, and the power source portion can be extremely reduced in size. For this reason, the power supply part 30 can be suitably built in the main body 10, and portability can be improved. Furthermore, sufficient light can be emitted even with the power generated by the solar cell, and the solar cell can be suitably used as a power source. In this regard, the conventional full matrix requires a power supply of 100 V (AC power supply supplied from a power company) and a large battery, and cannot be easily installed. In addition, because of low power consumption, even when a dry battery was used as a power source, it was possible to actually emit light for about 5 hours. It can respond sufficiently to the time for normal accident handling.

The control device 20 is provided with a changeover switch. The changeover switch is provided in correspondence with a plurality of signs stored in the control device 20. By switching on / off of the changeover switch, a desired display is selectively displayed from the plurality of signs. it can. As the sign (message), for example, “accident processing”, “30M
"Ahead", "50M ahead", "low speed", "running attention", arrows of figures, and the like can be displayed. According to the above message, it is most suitable for an accident site in a traffic accident. These signs are stored in the control device 20 and can be selectively displayed by the above-mentioned changeover switch. For example, if the changeover switches corresponding to the three signs of "accident processing", "30M ahead", and "running attention" are turned on, the three signs are sequentially displayed. As described above, the patterns can be freely combined, and the message can be appropriately transmitted to the viewer.

It is to be noted that, if a message is appropriately selected without being limited to such police-related applications, it can be suitably used in fire-related, railway-related, disaster-related and construction-related applications.
Of course. According to the present embodiment, the main body 10 can be attached to and detached from the support leg 50 in a cartridge manner.
And the control device 20 and the power supply unit 30 can be built in a small size, so that the weight can be reduced, and the location can be easily and suitably set in any emergency. Further, it can be easily operated by the above-mentioned changeover switch, and can be easily used in an emergency. As a result, it is possible to quickly respond to emergency sites, promptly alert pedestrians and drivers at high-risk disaster sites, accident sites, construction sites, etc., and prevent secondary accidents before they occur, ensuring safety. It has a remarkable effect on smooth traffic and the like.

Further, a handle 40 is attached to the upper side wall of the main body, and the main body 10 is cartridge-shaped and the holding portion 5 of the supporting leg 50 is provided.
Since it can be inserted into and detached from the device 1, there is an advantage that it can be easily transported, can be suitably handled, and can be suitably stored. Further, the supporting leg 50 can be opened with the rotating leg 54 opened relative to the fixed leg 52 (see FIG. 2). The pivot leg 54 pivots around a pivot shaft 53 formed by a bolt, and the stopper 5
Open until it touches 5. According to this embodiment, the main body 10
Can be stably supported in a slightly forward-turned state. Further, the support leg 50 has a simple structure and is excellent in transportability and handleability.

Next, another embodiment will be described with reference to FIG. In the electro-optical display device of the present embodiment, the light emitting element row 15 in which a large number of LEDs 14 are arranged in a row in the first direction at equal intervals in the plane is also arranged in the second direction orthogonal to the first direction. A display surface 12 provided in a large number of rows densely arranged at equal intervals;
Some of the light emitting element arrays 15 located at predetermined intervals among the multiple light emitting element arrays 15 emit light sequentially in the second direction so that characters or the like are displayed on the display surface 12 using the afterimage effect. And a control device for performing the control. That is, in the present embodiment, when displaying a character or the like by using the afterimage effect, only the LED 14 indicated by a white circle in the drawing is used, for example, from among the full matrix of LEDs 14.
In other words, the display of characters or the like moving in the second direction (longitudinal direction) is performed using only the light emitting element rows 15 positioned every five rows. The display method using this afterimage effect is the same as the display method of the embodiment shown in FIG. As described above, when the image is displayed using the afterimage effect, the power consumption can be reduced as described above.

In this embodiment, when a still image is to be displayed as in a conventional full matrix, all the light emitting element arrays 15 are used. In the case of this still display, power consumption increases, but if the display time is shortened as much as possible, the power consumption can be reduced. In addition, although it is inferior to the case of displaying characters and the like flowing by using the afterimage effect, at the time of still display, each LED 14 emits light in a state of repeating blinking with a pulse signal interposed therebetween.
Needless to say, power consumption can be reduced.

Also, in this embodiment, since the power consumption is small, even if at least a part of the power source for causing the LED 14 to emit light is a solar cell, the power from the solar cell can be used effectively. The lightning display function can be suitably maintained. In other words, the portable electronic device is configured as a portable electronic device that can be used for a long time even in a place where there is no AC power supply.

In the above embodiment, the horizontal display surface has been described. However, the present invention is not limited to this, and it goes without saying that the display surface may be vertical. As described above, the present invention has been described variously with reference to preferred embodiments. However, the present invention is not limited to the embodiments, and it is needless to say that many modifications can be made without departing from the spirit of the invention. That is.

[0024]

According to the first aspect of the present invention, a light emitting element row in which a plurality of light emitting elements are arranged in a line in a plane and densely arranged at equal intervals in the first direction is formed in the first direction. The display surfaces provided in a large number of rows roughly at equal intervals in the orthogonal second direction can appropriately transmit a message by using an afterimage effect, and can exert a suitable lightning display function. According to this configuration, the number of light emitting elements can be significantly reduced as compared with the full matrix, so that the manufacturing cost can be reduced, the weight can be reduced, the power consumption is small, and the power supply can be suitably incorporated, Since the solar cell can be used effectively, its portability can be improved.

According to the present invention, characters and the like are displayed on the display surface by using the afterimage effect.
A control device for sequentially emitting light in a part of the plurality of light emitting element arrays densely arranged in the second direction in the second direction, and
Power consumption is small, a power supply can be suitably incorporated, and a solar cell can be used effectively, and portability thereof can be improved. Further, since a large power supply is not required, manufacturing cost can be reduced and weight can be reduced. Therefore, according to the electro-optical display device of the present invention,
It has a remarkable effect that it can be appropriately and easily installed at an emergency site or the like.

[Brief description of the drawings]

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

FIG. 2 is a side view showing the embodiment of FIG.

FIG. 3 is a sectional view of the main body of the embodiment of FIG. 1;

FIG. 4 is a front view of an electro-optical display device according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Main body 12 Display surface 14 LED 15 Light emitting element row 20 Control device 30 Power supply part 40 Handle 50 Support leg

Claims (5)

[Claims] 1. A light emitting element array in which a plurality of light emitting elements are densely arranged in a plane at equal intervals in a first direction, and the light emitting element rows are coarsely arranged at equal intervals in a second direction orthogonal to the first direction. And a control device for sequentially emitting light in the second direction in the second direction so as to display characters and the like on the display surface by using an afterimage effect. An electro-optical display device, comprising: 2. The display device according to claim 1, wherein the display surface is provided on a surface of a main body formed in a rectangular panel shape, the control device and a power supply portion are built in the main body, and a handle is mounted on an upper side wall. The electronic display device according to claim 1, wherein the electronic display device is detachably provided on a leg. 3. A plurality of changeover switches corresponding to a plurality of signs stored in the control device so that a desired display can be selectively displayed from the plurality of signs. Item 3. The electronic display device according to item 1 or 2. 4. A light emitting element array in which a plurality of light emitting elements are densely arranged in a line in a first direction at equal intervals in a plane, and are also arranged in a second direction orthogonal to the first direction at equal intervals. A display surface arranged in a large number of densely arranged rows, and a part of the large number of light emitting element rows positioned at a predetermined interval so as to display characters and the like on the display surface by using an afterimage effect A control device for causing the light-emitting element rows to sequentially emit light in the second direction. 5. The light-emitting display device according to claim 1, wherein at least a part of a power source for causing the light-emitting element to emit light is a solar cell.