JP3063484B2 - LED information display device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an LED information display device which is installed on a street or the like and in which a light emitting element (LED) in which display information such as various characters and figures are arranged in a matrix is turned on and displayed.

[0002]

2. Description of the Related Art FIG. 5 is a block diagram showing a configuration of a conventional LED information display device. In FIG. 5, the LED information display device includes a display data storage unit 1 for storing display data for displaying display information such as characters and figures by turning on a plurality of LEDs arranged in a matrix. A display data transfer unit 2 for sequentially reading the display data stored in the unit 1 is provided. Further, an LED lighting control unit 3 for controlling the display data from the display data transfer unit 2 to be turned on by an LED, and a plurality of LEDs in which the display data is arranged in a matrix under the control of the LED lighting control unit 3 are turned on and displayed. It has an LED display unit 4 to be used.

Next, the operation of this conventional example will be described. Display data to be displayed on the LED display unit 4 is stored in the display data storage unit 1 in advance. The display data transfer unit 2 sequentially reads out the display data from the display data storage unit 1 and outputs it to the LED lighting control unit 3. When the input display data is lighting data, the LED lighting control unit 3 controls to turn on a corresponding LED on the LED display unit 4. When the input display data is the extinguishing data, the LED lighting control unit 3 performs control to extinguish the corresponding LED on the LED display unit 4.

In this way, even in the conventional LED information display device, a plurality of LEDs in which display information such as characters and figures are arranged in a matrix can be lit and displayed.

[0005]

However, in the conventional LED information display device, display data such as characters and figures having the same contents may be displayed for a long time.
In this case, there is a disadvantage that the luminance of a specific LED that has displayed display information for a long time is deteriorated.

The present invention is to solve such a conventional problem. The lighting position of a plurality of light emitting elements can be changed by manual external setting or by elapse of time or switching of display contents such as characters and figures. It is an object of the present invention to provide an excellent LED information display device capable of dispersing the lighting positions of light emitting elements, equalizing the cumulative lighting time, and reliably preventing luminance degradation of a specific light emitting element.

[0007]

In order to achieve the above object, an LED information display device according to the present invention comprises a light emitting display means in which a plurality of light emitting elements for lighting and displaying information are arranged, and a display for storing information to be displayed in advance. An information storage unit, a lighting position change manual setting unit for manually setting a change of a lighting position of a plurality of light emitting elements when reading the display information stored in the display information storage unit and displaying the display information on the light emitting display unit, and a lighting position change manual A lighting position determining means for determining a lighting position among the plurality of light emitting elements based on information on a change in a lighting position of the plurality of light emitting elements set by the setting means, and a change information of the lighting position determined by the lighting position determining means. And a lighting control means for performing control for lighting a plurality of light emitting elements in the light emitting display means based on the light emitting display means.

[0008]

[0009]

[0010]

With such a configuration, the LED information display device of the present invention provides information on the change of the lighting positions of the plurality of light emitting elements set by the lighting position change manual setting means or the time set by the lighting position time change setting means. The lighting positions of the plurality of light emitting elements are changed based on the progress information or the information for each change of the display content set by the lighting position change setting means.
Therefore, the lighting of the light emitting elements is dispersed, the cumulative lighting time is equalized, and the deterioration of the brightness of a specific light emitting element is prevented.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows the first embodiment of the present invention.
FIG. 3 is a block diagram showing a configuration of the example. In FIG. 1, in this example, a plurality of LEDs arranged in a matrix are lit to display characters, figures, and the like, and display data storage 11 for storing display data in advance, and the display data storage 11 stores the display data. And a display data transfer unit 12 for sequentially reading the displayed display data. Further, a display position setting unit 1 for setting lighting (display position) of a plurality of LEDs arranged in a matrix when displaying display data such as characters and figures.
3 and a display position determining unit 14 for determining a lighting position among a plurality of LEDs based on the setting of the display position changing unit 13. The LED information display device also includes a display position changing unit 15 for performing a display position changing process on the display data from the display data transfer unit 12 in accordance with the data indicating the lighting position from the display position determining unit 14. Part 15
LED lighting control unit 16 for controlling the lighting of a plurality of LEDs based on the data of the change of the display position from the display data stored in the display data storage unit 11 when the plurality of LEDs are turned on under the control of the LED lighting control unit 16 And an LED display unit 17 for displaying characters, figures, and the like.

Next, the operation of the configuration of this embodiment will be described. FIG. 3 is a diagram for explaining the lighting operation of the first embodiment of FIGS. 2 (a), (b), and (c). FIG. 2A is a timing chart of the display surface of the LED display unit 17, and FIG.
FIG. 2B is an enlarged view of a display portion in FIG. FIG. 2C is an enlarged view showing a state where the display position of the display part in FIG. 2B is changed. The display data storage unit 11 stores in advance display data such as characters and figures to be displayed by turning on a plurality of LEDs arranged in a matrix. The display data is displayed when a display start process is performed, for example, when a power supply (not shown) is turned on. The data is sequentially read out by the data transfer unit 12 and sent to the display position change unit 15. In this case, a switch (not shown) of the display position setting unit 13 is operated in advance to set whether or not to change a lighting position (display position) among a plurality of LEDs arranged in a matrix.

Here, the lighting position (display position) of the LED in the LED display section 17 when the lighting position (display position) of the plurality of LEDs is not changed is set as the origin display 18. That is, as shown in FIG.
When the character "ABCDEFG" is displayed on the display surface of "?", The LED at a predetermined position (origin) among the plurality of LEDs shown in FIG. Next, when the display “AB...” Of the origin display 18 is shifted, that is, the same LED is turned on for a long time,
In order to equalize the accumulated lighting time in order to prevent the luminance of the ED from deteriorating, an instruction is given by operating a switch (not shown) of the display position setting unit 13. This instruction information is displayed in the display position determining unit 1.
4 to the display position changing unit 15 to instruct the change of the display position.

The change of the display position is performed, for example, by changing
The characters "AB ..." are displayed again in a change display 19 in which the LED is shifted by two to the right and below the display of the origin display 18 shown in FIG. In response to this change instruction, the display position change unit 15 transfers the display data from the display data transfer unit 12 to the right side and the lower side with respect to the origin display 18 respectively.
Change the ED to the position of the change display 19 shifted by two,
It is sent to the ED lighting control unit 16. LED lighting control unit 16
Displays the change display 19 on the LED display unit 17 based on the display data from the LED lighting control unit 16. In other words, as shown in FIG. 2C, the display of the origin display 18 (“AB... In black circles”) is shown by white circles as a change display 19 in which the LEDs are shifted by two to the right and to the lower side, respectively. Is displayed by lighting the LED.

In the first embodiment, the origin display 18 shown in FIG. 2B is replaced with the change display 1 shown in FIG.
As described above, the position of the changed display is set to three or more in the display position setting unit 13, and when the LEDs are shifted and displayed in this setting, the lighting positions of the LEDs are dispersed, and the accumulated lighting time of each LED is changed. , More even.

As described above, in the first embodiment, it is possible to prevent the lighting of the same LED for a long time by setting from the outside, and to equalize the accumulated lighting time to prevent the luminance degradation of the specific LED.

Next, a second embodiment will be described. In the second embodiment, while the position of the change display is manually set by the display position setting unit 13 in the first embodiment, a plurality of time-lapsed, for example, a plurality of matrices arranged in a matrix at regular time intervals are set. The lighting position (display position) in the LED is automatically changed.

FIG. 3 is a block diagram showing the configuration of the second embodiment of the present invention. In FIG. 3, in this example, a time monitoring unit 20 is provided instead of the display position setting unit 13 in the first embodiment shown in FIG. Other configurations are the same. That is, the display data storage unit 11, the display data transfer unit 12,
It has a time monitoring unit 20, a display position determining unit 14, a display position changing unit 15, an LED lighting control unit 16, and an LED display unit 17.

Next, the operation of the second embodiment will be described. Operations other than the time monitoring unit 20 and the display position determining unit 14 are the same as those of the first embodiment. The time monitoring unit 20 monitors the lapse of time, and outputs, for example, time measurement data of the lapse of time every minute to the display position determination unit 14. Display position determination unit 1
At 4, the lighting position (display position) among the plurality of LEDs arranged in the matrix is automatically changed based on the time measurement data from the time monitoring unit 20. The change of the display on the LED display unit 17 is the same as in the first embodiment. That is, FIG.
When the display position changing unit 15 is instructed to automatically change the display position through the display position determining unit 14 after one minute displayed on the origin display 18 shown in FIG. 7B, the display data from the display data transfer unit 12 is transferred to the origin. Decision information for changing to the position of the change display 19 in which two LEDs are shifted to the right and to the lower side of the display 18, respectively, is sent to the LED lighting control unit 16.

The LED lighting control section 16 controls the LED display section 17 based on the decision information from the LED lighting control section 16.
To display the change display 19. That is, as shown in FIG. 2C, the display of the origin display 18 ("AB" of the black circle display)
.. "), The letters" AB ... "indicated by white circles are displayed by turning on a plurality of LEDs as a change display 19 in which two LEDs are shifted to the right and to the lower side, respectively. When one minute has elapsed in the change display 19, the LED is lit and displayed at the display position of the origin display 18 shown in FIG. 2B. In this way, the origin display 18 and the change display 19 are automatically repeated at one-minute intervals.

In the second embodiment, the origin display 18 and the change display 19 are alternately repeated at one-minute intervals, and the
The display position of the display position is changed. The time interval for changing the display position is set so that the accumulated lighting time can be more equalized depending on the characteristics of the LED used and the contents of characters, graphics, etc., which are display data. Good. In addition, the display position is changed by repeating the origin display 18 and the change display 19 with each other. In this display change, the lighting position is changed to three or more display positions, that is, the right side and the lower side with respect to the origin display 18. At the same time, the LEDs may be shifted to the right and to the upper side by two or more positions, and in this case also, each LE
Since the lighting positions of D are dispersed, the accumulated lighting time can be more equalized.

As described above, in the second embodiment, the display position is automatically changed in accordance with the passage of time, the lighting of the same LED is prevented for a long time, and the cumulative lighting time is equalized. Deterioration of luminance of a specific LED can be prevented.

Next, a third embodiment will be described. In the third embodiment, the lighting position (display position) of the LED is automatically changed every time the display content of one character string (sentence) or graphic displayed on the LED display unit 17 is changed. .

FIG. 4 is a block diagram showing the configuration of the third embodiment. 4, in this example, a display data change monitoring unit 30 is provided instead of the display position setting unit 13 shown in FIG. Other configurations are the same. That is, the display data storage unit 11, the display data transfer unit 12, the display position determination unit 14, the display data change monitoring unit 30, the display position change unit 1
5, an LED lighting control unit 16 and an LED display unit 17.

Next, the operation of the third embodiment will be described. Display data change monitoring unit 30 and display position determination unit 14
The other operations are the same as those of the first embodiment. The display data change monitoring unit 30 receives display data from the display data storage unit 11. The display data change monitoring unit 30 monitors a change in the display content of one character string (text) and a graphic displayed on the LED display unit 17 in the display data. The lighting position (display position) among the plurality of LEDs arranged in the matrix is automatically changed based on one character string (sentence) from the display data change monitoring unit 30 and the change data for each change in the display content of the figure. I do. The change of the display on the LED display unit 17 is the same as in the first embodiment. That is, FIG.
One character string (sentence) and a figure are displayed at the display position of the origin display 18 shown in FIG.

When the lighting display of one character string (text) and a graphic is completed, the display position change unit 15 is instructed to automatically change the display position through the display position determination unit 14. In response to this instruction, the next one character string (sentence) and graphic display data from the display data transfer unit 12 are displayed on the right and lower sides of the origin display 18 which is the change display 19 by LED respectively.
Is changed to a position shifted by two, and is sent to the LED lighting control unit 16. The LED lighting control unit 16 controls the LED display unit 17 based on the display data from the LED lighting control unit 16.
To display the change display 19. In the change display 19 in which two LEDs are shifted to the right and to the lower side with respect to the display position of the origin display 18, the next one character or figure is displayed by lighting the LED. The subsequent display data of one character or figure is displayed by turning on the LED at the display position of the origin display 18. In this manner, the origin display 18 and the change display 19 are repeated for each display data of one character or figure.

In the third embodiment, one character,
Although the origin display 18 and the change display 19 are alternately repeated for each display data of the figure to change the display position, the present invention is not limited to this. The division of the display data of the characters and figures whose display positions are changed may be set so that the accumulated lighting time can be further equalized depending on the characteristics of the LED used and the contents of the characters and figures as the display data. Although the origin display 18 and the change display 19 are repeated with each other to change the display position, the display position may be changed to three or more. That is, along with the right side and the lower side with respect to the origin display 18, the right side and the upper side may be set so that the LEDs are displayed at positions shifted from each other by two or more. The accumulated lighting time of the LED can be more equalized.

Thus, in the third embodiment, characters,
The display position is automatically changed in accordance with the display data of the figure, and it is possible to prevent the same LED from being turned on for a long period of time without making a person watching the LED information display device aware of the change in the display position. . Therefore, the accumulated lighting time is equalized, so that the luminance degradation of a specific LED can be prevented.

[0029]

As is apparent from the above description, the LED information display device of the present invention is capable of displaying a plurality of light emitting elements based on information on the change of the lighting positions of the plurality of light emitting elements set by the lighting position change manual setting means. Since the display position where is turned on is changed, the lighting positions of the light emitting elements are dispersed, the cumulative lighting time is equalized, and there is an effect that the luminance degradation of a specific light emitting element can be reliably prevented.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an LED information display device according to a first embodiment of the present invention.

2A is an overall display diagram of an LED display unit according to the first embodiment of the present invention; FIG. 2B is an enlarged display diagram of the LED display unit according to the first embodiment of the present invention; Modified enlarged display of the LED display unit in one embodiment

FIG. 3 is a block diagram showing a configuration of an LED information display device according to a second embodiment of the present invention.

FIG. 4 is a block diagram showing a configuration of an LED information display device according to a third embodiment of the present invention.

FIG. 5 is a block diagram showing a configuration of a conventional LED information display device.

[Explanation of symbols]

 Reference Signs List 11 display data storage unit 12 display data transfer unit 13 display position setting unit 14 display position determination unit 15 display position change unit 16 LED lighting control unit 17 LED display unit 18 origin display 19 change display 20 time monitoring unit 30 display data change monitoring unit

Claims (1)

(57) [Claims] 1. A light emitting display means in which a plurality of light emitting elements for lighting and displaying information are arranged, a display information storage means for storing information to be displayed in advance, and the display information stored in the display information storage means is read to emit light. Lighting position change manual setting means for manually setting the change of the lighting positions of the plurality of light emitting elements when displaying on the display means, and changing of the lighting positions of the plurality of light emitting elements set by the lighting position change manual setting means. Lighting position determining means for determining a lighting position in the plurality of light emitting elements based on the information; and the plurality of light emitting elements in the light emitting display means based on change information of the lighting position determined by the lighting position determining means. An LED information display device comprising: lighting control means for controlling lighting.