JPH07104702A - Led information display device - Google Patents

Abstract

PURPOSE:To equalize the accumulated lighting time and to surely prevent the luminance deterioration of a specified light emitting element by changing the display positions of plural light emitting elements for every time of the external manual setting, the time lapse or changing the display of character and graphics, etc., and distributing the lighting position of a light emitting element. CONSTITUTION:Displaying data such as characters, graphics, etc., stored in a displaying data storage part 11 are sent to a changing part 15 for display position through a displaying data transfer part 12. By operating the switch of a display position setting part 13, instruction information for changing the lighting position (display position) among the plural LEDs in a matrix is outputted to a display position changing part 15 through a display position deciding part 14. The display position changing part 15 changes the displaying data from the displaying data transfer part 12 to the changed position of display shifted to the origin display. The displaying data of changed display are sent and displayed on an LED display part 17 through an LED lighting control part 16.

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 displays display information such as various characters and figures in a matrix by illuminating and displaying light emitting elements (LEDs).

[0002]

2. Description of the Related Art FIG. 5 is a block diagram showing the structure 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 lighting a plurality of LEDs arranged in a matrix, and the display data storage unit 1. It has a display data transfer unit 2 for sequentially reading the display data stored in the unit 1. Further, an LED lighting control unit 3 for controlling the display data from the display data transfer unit 2 to be lit by an LED, and a plurality of LEDs arranging the display data in a matrix under the control of the LED lighting control unit 3 are lit and displayed. The LED display unit 4 is provided.

Next, the operation of this conventional configuration 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 the display data from the display data storage unit 1 and outputs the display data to the LED lighting control unit 3. The LED lighting control unit 3 controls the lighting of the corresponding LED in the LED display unit 4 when the input display data is lighting data. Further, the LED lighting control unit 3 performs control to turn off the corresponding LED on the LED display unit 4 when the input display data is turn-off data.

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 turned on and displayed.

[0005]

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

The present invention is to solve such a conventional problem, and it is possible to change the lighting positions of a plurality of light emitting elements each time external setting is manually performed or time elapses or display contents such as characters and figures are switched. It is an object of the present invention to provide an excellent LED information display device in which the lighting positions of the light emitting elements are dispersed so that the cumulative lighting time is equalized and the luminance deterioration of a specific light emitting element can be reliably prevented.

[0007]

In order to achieve the above object, the LED information display device of the present invention has a light emitting display means in which a plurality of light emitting elements are arranged to light and display information, and a display for storing information to be displayed in advance. Information storage means, lighting position change manual setting means for manually setting change of lighting positions of a plurality of light emitting elements when the display information stored in the display information storage means is read and displayed on the light emitting display means, and lighting position change manual Lighting position determination means for determining the lighting position in the plurality of light emitting elements based on the information of changing the lighting position of the plurality of light emitting elements set by the setting means, and the change information of the lighting position determined by the lighting position determination means. And a lighting control means for controlling lighting of a plurality of light emitting elements in the light emitting display means.

Further, a light emitting display means in which a plurality of light emitting elements for lighting and displaying information are arranged, a display information storing means for storing the information to be displayed in advance, and the display information stored in the display information storing means is read to be used by the light emitting display means. A change of the lighting positions of the plurality of light emitting elements set by the lighting position time passage change setting means for setting the change of the lighting positions of the plurality of light emitting elements based on the passage of time, Lighting position determination means for determining lighting positions in the plurality of light emitting elements based on the information, and control for lighting the plurality of light emitting elements in the light emitting display means based on the change information of the lighting position determined by the lighting position determination means And a lighting control means for performing.

Further, a light emitting display means in which a plurality of light emitting elements for lighting and displaying information are arranged, a display information storing means for storing information to be displayed, and display information stored in the display information storing means is read out and displayed by the light emitting display means. Lighting position change setting means for setting the change of the lighting positions of the plurality of light emitting elements for each change of the display content stored in the display information storage means, and the lighting positions of the plurality of light emitting elements set by the lighting position change setting means Lighting position determining means for determining the lighting position in the plurality of light emitting elements based on the change information of the light emitting element, based on the change information of the lighting position determined by the lighting position determining means, the plurality of light emitting elements in the light emitting display means. A lighting control means for controlling lighting is provided.

[0010]

With such a configuration, the LED information display device of the present invention has 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 elapsed 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 display content change 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 luminance deterioration of a specific light emitting element is prevented.

[0011]

Embodiments of the LED information display device of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows the first of the present invention.
3 is a block diagram showing the configuration of the embodiment of FIG. In FIG. 1, in this example, a plurality of LEDs arranged in a matrix are turned on, and a display data storage unit 11 that stores display data in advance when displaying characters, figures, etc. is stored in the display data storage unit 11. The display data transfer unit 12 sequentially reads the 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 that determines the lighting positions in the 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 changing the display position of the display data from the display data transferring unit 12 according to the data indicating the lighting position from the display position determining unit 14, and the display position changing unit. Part 15
LED lighting control unit 16 that controls lighting of a plurality of LEDs based on the data for changing the display position from, and display data stored in the display data storage unit 11 by lighting the plurality of LEDs under the control of the LED lighting control unit 16. It has an LED display section 17 for displaying characters, figures, etc.

Next, the operation of the configuration of this embodiment will be described. It is a figure for demonstrating the lighting operation of 1st Example of FIG. 2 (a), (b), (c). 2A is a timing diagram of the display surface of the LED display unit 17, and FIG.
FIG. 2B is an enlarged view of the display portion in FIG. FIG. 2C is an enlarged view showing a state where the display position of the display portion in FIG. 2B is changed. The display data storage unit 11 stores in advance display data such as characters and figures to be displayed when a plurality of LEDs arranged in a matrix are lit, and is displayed when a display start process, for example, a power supply (not shown) is turned on. It is sequentially read by the processing of the data transfer unit 12 and sent to the display position changing 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 the lighting position (display position) in the plurality of LEDs arranged in a matrix.

Here, when the lighting position (display position) of the plurality of LEDs is not changed, the lighting position (display position) of the LED on the LED display unit 17 is the origin display 18. That is, as shown in FIG.
When the characters "ABCDEFG" are 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 lights for a long time, and the L
In order to equalize the cumulative lighting time in order to prevent the luminance deterioration of the ED, a switch (not shown) of the display position setting unit 13 is operated to give an instruction. This instruction information is displayed on the display position determining unit 1.
It is sent to the display position changing unit 15 through 4 to instruct to change the display position.

This change of the display position can be performed by, for example, referring to FIG.
The characters "AB ..." are re-displayed on the change display 19 in which two LEDs are respectively shifted to the right side and the lower side with respect to the display of the origin display 18 shown in FIG. In response to this change instruction, the display position changing unit 15 sets the display data from the display data transfer unit 12 to the right side and the lower side of the origin display 18, respectively.
Change to the position of change display 19 where ED is shifted by two, and then L
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. That is, as shown in FIG. 2 (c), “AB ...” indicated by white circles as a change display 19 in which two LEDs are respectively shifted to the right side and the lower side with respect to the display of the origin display 18 (“AB ...” in black circle display). The LED lights up to display the characters.

In the first embodiment, the change display 1 shown in FIG. 2C is different from the origin display 18 shown in FIG. 2B.
Although the display change of No. 9 has been described, when the display position setting unit 13 sets three or more change display positions and the LEDs are shifted and displayed with this setting, the LED lighting positions are dispersed, and the cumulative lighting time of each LED. , More equalize.

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

Next, a second embodiment will be described. In the second embodiment, the position of the change display is manually set by the display position setting unit 13 in the first embodiment. 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. 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 determination 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. The operations other than the time monitoring unit 20 and the display position determination unit 14 are the same as those in the first embodiment. The time monitoring unit 20 monitors the passage of time, and outputs, for example, timekeeping data of the passage of time for each minute to the display position determination unit 14. Display position determination unit 1
In 4, the lighting position (display position) in 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 that of 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 (b), the display data from the display data transfer unit 12 is changed to the origin. The determination information for changing to the position of the change display 19 in which the LEDs are shifted by two on the right side and the lower side of the display 18 is sent to the LED lighting control unit 16.

The LED lighting control unit 16 is based on the decision information from the LED lighting control unit 16 and the LED display unit 17
The change display 19 is displayed. That is, as shown in FIG. 2C, the origin display 18 is displayed (black circle display “AB
... "), the letters" AB ... "indicated by white circles are displayed as a change display 19 in which the LEDs are shifted from each other on the right side and the lower side by lighting a plurality of LEDs. When one minute has elapsed on the change display 19, the LED is turned on 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 intervals of 1 minute so that the LED
The display position of is changed, but the time interval for changing this display position should be set so that the cumulative lighting time can be more equalized depending on the characteristics of the LED used and the contents of the characters, figures, etc. that are the display data. Good. Further, the display position is changed by repeating the origin display 18 and the change display 19, but 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, two or more LEDs may be arranged on the right side and the upper side, respectively.
The lighting positions of D are dispersed, and the cumulative lighting time can be made more uniform.

As described above, in the second embodiment, the display position is automatically changed according to the passage of time, the same LED is prevented from being lit for a long time, and the cumulative lighting time is equalized. It becomes possible to prevent the luminance deterioration of a specific LED.

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 figure 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 operation is the same as that of the first embodiment. The display data change monitoring unit 30 receives the display data from the display data storage unit 11. The display data change monitoring unit 30 monitors changes in the display content of one character string (sentence) or figure displayed on the LED display unit 17 in the display data. The lighting position (display position) in a plurality of LEDs arranged in a matrix is automatically changed based on one character string (sentence) from the display data change monitoring unit 30 and change data for each change of display contents of a figure. To do. The change of the display on the LED display unit 17 is the same as that of the first embodiment. That is, FIG.
One character string (sentence) or figure is displayed at the display position of the origin display 18 shown in (b).

When the one character string (sentence) and the figure are lit up and displayed, the display position determining unit 14 instructs the display position changing unit 15 to automatically change the display position. In response to this instruction, the next one character string (sentence) and display data which is a figure from the display data transfer unit 12 are respectively displayed on the right side and the lower side with respect to the origin display 18 which is the change display 19.
Is shifted to two positions and is sent to the LED lighting control unit 16. The LED lighting control unit 16 uses the LED display unit 17 based on the display data from the LED lighting control unit 16.
The change display 19 is displayed. In the change display 19 in which two LEDs are respectively shifted to the right side and the lower side with respect to the display position of the origin display 18, the LED lights up and displays the next one character or figure. The display data of one character or figure after this is displayed by turning on the LED at the display position of the origin display 18. In this way, 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,
The origin display 18 and the change display 19 are repeated for each display data of the figure to change the display position, but the present invention is not limited to this. The delimiter between the display data for changing the display position of the character and the graphic may be set so that the cumulative lighting time can be made more uniform depending on the characteristics of the LED used and the contents of the character, the graphic, and the like as the display data. Further, although the origin display 18 and the change display 19 are repeated to change the display position, the display position may be changed to 3 or more. That is, the LEDs may be set to be displayed on the right side and the lower side with respect to the origin display 18 as well as on the right side and the upper side at positions displaced by two or more. Also in this case, the lighting positions of the LEDs are dispersed and The cumulative lighting time of the LEDs can be made more uniform.

As described above, in the third embodiment, characters,
It is possible to prevent the lighting of the same LED for a long period of time by automatically changing the display position according to the display data of the figure and not making the person who views the LED information display device in particular aware of the change of the display position. . Therefore, the cumulative lighting times are equalized, and the deterioration of the brightness of a specific LED can be prevented.

[0029]

As is apparent from the above description, in the LED information display device of the present invention, the 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 lighting position time elapsed change setting means. Since the display position at which a plurality of light emitting elements are turned on is changed based on the information of the elapsed time set in step 1 or the information for each change of the display contents set by the lighting position change setting means, the lighting positions of the light emitting elements are dispersed. As a result, the cumulative lighting time is equalized, and it is possible to reliably prevent the luminance deterioration of a specific light emitting element.

[Brief description of 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.

FIG. 2 (a) is an overall display view of an LED display section according to the first embodiment of the present invention. (B) is an enlarged display view of the LED display section according to the first embodiment of the present invention. FIG. 2 is an enlarged view showing the change of the LED display section in the first 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]

 11 Display Data Storage Section 12 Display Data Transfer Section 13 Display Position Setting Section 14 Display Position Determining Section 15 Display Position Changing Section 16 LED Lighting Control Section 17 LED Display Section 18 Origin Display 19 Change Display 20 Time Monitoring Section 30 Display Data Change Monitoring Section

Claims (3)

[Claims] 1. A light-emitting display unit in which a plurality of light-emitting elements for lighting and displaying information are arranged, display information storage unit for storing information to be displayed in advance, and display information stored in the display information storage unit is read out to emit the light. A lighting position change manual setting means for manually setting the change of the lighting positions of the plurality of light emitting elements when displaying by the display means, and a change of the lighting position 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 information, and the plurality of light emitting elements in the light emitting display means based on the change information of the lighting position determined by the lighting position determining means. An LED information display device comprising a lighting control means for controlling lighting. 2. A light-emitting display unit in which a plurality of light-emitting elements for lighting and displaying information are arranged, display information storage unit for storing information to be displayed in advance, and display information stored in the display information storage unit is read out to emit the light. Lighting position time passage change setting means for setting the change of the lighting position of the plurality of light emitting elements based on the passage of time when displaying by the display means, and the plurality of light emitting elements set by the lighting position time passage change setting means Lighting position determining means for determining a lighting position in the plurality of light emitting elements based on the information on the changing of the lighting position, and the light emitting display means based on the changing information of the lighting position determined by the lighting position determining means. The LED information display device, comprising: a lighting control unit that controls the lighting of the plurality of light emitting elements. 3. A light-emitting display unit in which a plurality of light-emitting elements for lighting and displaying information are arranged, display information storage unit for storing information to be displayed, and display information stored in the display information storage unit is read out to perform the light-emission display. Lighting position change setting means for setting the change of the lighting position of the plurality of light emitting elements at the time of displaying by the means for each change of the display contents stored in the display information storage means, and the lighting position change setting means set by the lighting position change setting means Based on the lighting position determination means for determining the lighting position in the plurality of light emitting elements based on the information of the change of the lighting position of the plurality of light emitting elements, based on the change information of the lighting position determined by the lighting position determination means, An LED information display device comprising: lighting control means for controlling the lighting of the plurality of light emitting elements in the light emitting display means.