JPH0519710A - Led display device - Google Patents

Abstract

PURPOSE:To efficiently find a defective element and a defective electric conductor without overlooking them by providing a means which changes display patterns and colors to be displayed partially and easily testing an LED display element. CONSTITUTION:This LED display device is equipped with a means which changes the patterns to be displayed and colors to be displayed partially and a function which tests the display operation of the LED display element. Further, the device has a means which continuously changes numbers to be displayed and colors to be displayed, a means which makes only one column of a display part 25 illuminate, and a means 16 which freely selects the column to illuminate and a number to be displayed. Furthermore, the device is provided with a means which makes only one column of the display part 25 illuminate while changing the colors of a test display, the columns to illuminate, and the numbers to be displayed continuously in order, a means which makes only one display element of the display part 25 illuminate in order, and a means which freely changes the colors of the test display, LED display elements to illuminate, and display contents by key operation during the test.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an LED display device installed in a securities company, a bank or the like and used for a data display device for displaying numerical information such as stock price and interest.

[0002]

2. Description of the Related Art As shown in FIG. 7, the display surface of a conventional stock price display device is a brand plate mounting surface for mounting a brand plate.
30 and the 1st display column 31 and 2nd for displaying the stock price numerically
Display column 32, third display column 33, fourth display column 34, fifth display column 35
And are provided. Display columns for displaying stock prices 31 to 35
Is a letter L that selectively emits light from a plurality of LED (light emitting diode) segments arranged in an 8-character shape.
A large number of ED display elements are arranged, and these LED display elements display a predetermined number of digits. Then, when such stock price display device receives stock price information of a stock from the central processing unit, it displays it in the display columns 31 to 35 corresponding to the stock on the display surface.

In such a stock price display device, each L
Although it is configured so that a test for checking whether or not the ED display element is functioning normally can be performed, in the conventional stock price display device, an inspection is performed visually while all the LED display elements are turned on. It was

[0004]

However, in such a conventional stock price display device, since the LED display elements are all turned on for the test, the abnormality may be overlooked by the visual ability or the abnormal display may occur. There was a problem that it was not recognized as an abnormal display.

The present invention has been conceived in order to solve the problems in the inspection of such a conventional LED display device, and there is a defect in the LED display element, a defect in the wiring, and those problems which occur during continuous use. (EN) Provided is an excellent LED display device which can be efficiently detected without overlooking defects and which can be inspected in detail.

[0006]

In order to solve the above-mentioned problems, the present invention comprises means for partially changing a display pattern (number) and a display color, and performs a display test of an LED display element. It has a function that can. Further, a means for continuously changing the displayed numbers and displayed colors, a means for turning on only one column of the display unit, and a means for freely selecting the color of the test display, the illuminated columns and the displayed numbers by key operation. A means for illuminating only one row of the display unit while sequentially and continuously changing the color of the test display, the lit column and the number to be displayed, a means for illuminating only one display element of the display unit, and a key in the test. Means for freely changing the color of the test display, the location of the LED display element to be turned on, and the display content by operation are provided, and each of these means may be implemented alone or in combination.

[0007]

Therefore, according to the present invention, it is possible to perform a display test on the LED display elements of the entire LED display section while continuously changing the displayed numbers and their colors.
Further, according to the present invention, the display unit is partially provided, for example,
Only the row can be turned on, and the row to be turned on, the display color and the display pattern can be freely selected by key operation. Further, in a test in which only one column of the display unit is illuminated, the color of the test display, the illuminated column, and the number to be displayed can be continuously and sequentially changed.
Further, it is possible to perform a display test by turning on only one display element of the display section, and it is possible to freely select a lighting place, a color of the test display and display contents by key operation.

[0008]

【Example】

(First Embodiment) A first embodiment of the LED display device of the present invention will be described with reference to FIGS.

As shown in FIG. 1, a TC (terminal control) block 1 for receiving / editing information sent from the central processing unit of the market news reporting system and creating test data, and a TC block 1 The display block 2 displays the edited data.

The TC block 1 includes a receiving / editing processing unit 11 for receiving and editing data sent from the central processing unit of the market news reporting system, a data storage unit 12 for storing edited data. The changeover switch 13 is provided with a coloring section 18 for adding data relating to the color to be displayed for each brand, and a display data transmitting section 19 for transmitting the display data to the display block 2.

Further, the key operation unit 16 and this key operation unit
Key input acceptance processing unit 17 that accepts key input from 16
A test data creation unit 14 and a test data storage unit 15 that stores the created test data.

The key input acceptance processing unit 17 instructs the test data creation unit 14 to start or stop the creation of test data based on the input from the key operation unit 16, and transmits the stock price data to the changeover switch 13. Or a test data transmission instruction is given, and the coloring section 18 is given data regarding a color to be displayed.

The display block 2 includes a display data receiving section 21 for receiving the data sent from the TC block 1,
A display data storage unit 22 that stores display data of the received data, a display control data storage unit 23 that stores display control data of the received data, and these data storage units 22 and 23 are stored. And a display control unit 24 that controls the lighting of the LED display unit 25 based on the data.

As shown in the external view of FIG. 2, a red LED 4 and a green LED 5 are provided in the seven segments 6 of the LED display element 3 for displaying a one-digit number. If only the red LED 4 is made to emit light, it will be displayed in red and the green L
When only ED5 is made to emit light, it becomes green display
When D is made to emit light, it is displayed in orange.

Next, the operation of this embodiment will be described. The information sent from the central processing unit of the market news reporting system is received by the reception edit processing unit 11, is edited, and is stored in the stock price data storage unit 12. In a normal state in which stock price information is displayed, the display data transmission unit 19 reads the data for the stock to be displayed from the data stored in the stock price data storage unit 12 for each stock, and based on the data, the coloring unit. The display color is determined in 18 and the read data and the display color data are transmitted to the display data receiving section 21 of the display block 2.

Of the data received by the display data receiving section 21 of the display block 2, stock price data is stored in the display data storage section 22 and display color data is stored in the display control data storage section 23. The display data storage section 22 is composed of areas corresponding to the display elements of the LED display section 25 on a one-to-one basis. The display control unit 24 uses an LED based on each data stored in the display data storage unit 22 and the display control data storage unit 23.
The display unit 25 is turned on with the designated number and display color.

On the other hand, when the key input requesting the display of the test pattern is made from the key operation section 16, the key input acceptance processing section 17 issues a command for creating the test pattern to the test data creating section 14 and also causes the changeover switch 13 to operate. Switch. The test data storage unit 15 has the same shape as the display data storage unit 22.

The test pattern to be created is one in which all the display elements are sequentially and repeatedly displayed from "red 0" to "orange 9" for a fixed time in the order shown in FIG. Therefore, when receiving the command for displaying the test pattern from the key input reception processing unit 17, the test data creation unit 14 first sets “0” in all the areas of the test data storage unit 15. The display data transmission unit 19 reads the test data accumulated in the test data storage unit 15 one by one, and adds the display color data so that the coloring unit 18 displays a red color and transmits it.

In the display block 2, the same processing as in the normal state of displaying stock price information is performed, and all the display elements of the LED display section 25 display "red 0".

The test data creation unit 14 rewrites the contents of the test data storage unit 15 at regular intervals. Also, the coloring part
18 changes the display color data added to the test data at regular time intervals. As an example, here, the cycle in the test data creating unit 14 is 3 seconds, and the cycle in the coloring unit 18 is 1
Described as seconds.

One second after the test display is started, the coloring portion 18
Changes the display color data to be added from red to green. Then, "green 0" is displayed on the entire display portion. One second after that, the coloring section 18 changes the display color data to be added from green to orange, so that "orange 0" is displayed on the entire surface of the display section.

One second later, the test data creation section
14 resets the set “0” to “1” in all areas of the test data storage unit 15. Further, the coloring section 18 is
Since the display color data to be added is changed from orange to red, "red 1" is displayed on the entire display portion. In the same manner, the display color and the numbers are changed in the same manner to generate a test pattern that continuously changes the display of the entire board as shown in FIG.

When the key input requesting the end of the test is made from the key operation unit 16, the key input reception processing unit 17 issues an instruction to the test data creating unit 14 to cancel the creation of the test data, and the test data is created. Will not stop. Then, a command is issued to the changeover switch 13 and the coloring section 18 to transmit the stock price data, and the display data transmitting section 19 transmits the stock price data as usual.

As described above, according to the first embodiment, it is possible to perform the display test on the LED display elements of the entire LED display section while continuously changing the displayed numbers and the displayed colors. It is possible to efficiently detect defects, wiring defects, and defects that occur during continuous use.

(Second Embodiment) FIG. 4 shows a display state of a test pattern in the second embodiment of the present invention.

In the second embodiment, in the configuration shown in FIG. 1, when a key input requesting display of a test pattern is made from the key operation unit 16, the key input acceptance processing unit 17 sends a test pattern to the test data creation unit 14. When a command to display is issued, the test data creation unit 14 sets “0” in the area corresponding to the LED display element at the left end of the display unit of the test data storage unit 15 and sets “space” in the other areas. To do. Further, the test data accumulated in the test data storage unit 15 is read for each brand, and the display data transmission unit 19 adds the display color data so that the coloring unit 18 displays a red color and transmits it.

In the display block 2, the same processing as in the case of performing the ordinary stock price display is performed, and as shown in FIG. 4A, only the leftmost column of the LED display section 25 displays "red 0". To do.

When the "down arrow key" of the key operation unit 16 is pressed while the test pattern is displayed, the key input acceptance processing unit 17
Issues an instruction to the coloring section 18 to change the display color in the forward direction. Then, the coloring unit 18 changes the display color data to be added by one in the order of red → green → orange → red. Conversely, when the "up arrow key" is pressed, the key input reception processing unit 17 issues a command to the display data transmission unit 19 to change the display color in the opposite direction. Then, the coloring unit 18 changes the display color data to be added from red → orange →
Change one from green to red. In this way, by pressing the "up arrow key" or the "down arrow key" of the key operation unit 16, the color of the test pattern display can be freely changed.

In addition, while the test pattern is displayed, the key operation unit
When the "right arrow key" 16 is pressed, the key input reception processing unit
17 issues a command to the test data creation unit 14 to move the display position to the right by one. Then, the test data creation unit 14
The data stored in the area corresponding to the LED display element of the lit column of the test data storage unit 15 is moved to the area corresponding to the LED display element of the column on the right of the column, and the data is stored until then. "Space" is stored in the area that has been set. On the contrary, when the “left arrow key” is pressed, the key input reception processing unit 17 issues a command to the test data creation unit 14 to move the display position to the left by one. Then, the test data creation section
14 is the LED of the row in which the test data storage unit 15 is lit
The data stored in the area corresponding to the display element is moved to the area corresponding to the LED display element in the column adjacent to the left of the column, and "space" is stored in the area where the data was stored until then.

Thus, the “right arrow key” of the key operation unit 16
Alternatively, by pressing the "left arrow key", the illuminated row can be freely moved as shown in FIG. 4 (b).

Further, the key operation unit is displayed while the test pattern is displayed.
When the "numerical key" 16 is pressed, the key input reception processing unit 17
Issues a command to the test data creating unit 14 to change the displayed number to a suppressed number. Then, the test data creation unit 14 changes the data in the area of the test data storage unit 15 corresponding to the LED display elements in the lit columns to the pressed numbers. In this way, by pressing the "numeric key" of the key operation unit 16, the display of the illuminated column can be freely changed as shown in FIG. 4 (c).

The operation after the key input for requesting the end of the test is made is the same as in the case of the first embodiment.

As described above, according to the second embodiment, it is possible to carry out a test in which only one column of the display portion is turned on, and therefore, it is possible to eliminate the oversight of defects caused by the lighting of the adjacent LED display elements. And again,
By pressing the "right arrow key" and the "left arrow key" to freely move the illuminated column, or by pressing the "numerical key" to freely change the illuminated column display, defective LED display elements and defective wiring can be obtained. You can discover efficiently without overlooking.

In the second embodiment, only one vertical column is displayed and moved horizontally, but one horizontal column may be displayed and moved vertically.

(Third Embodiment) FIG. 5 shows a display state of a test pattern in the third embodiment of the present invention.

In the third embodiment, in the configuration shown in FIG. 1, when a key input requesting display of a test pattern is made in the key operation unit 16, the key input acceptance processing unit 17 sends a test pattern to the test data creation unit 14. When a command to create is issued, the test data creation unit 14 causes the test data storage unit 15 to display "0" in the area corresponding to the leftmost column of the LED display elements of the LED display unit 25, and to the other areas with "Space". ”Is set. In addition, the coloring unit 18 that has received the command reads the test data accumulated in the test data storage unit 15 one by one, adds the display color data so as to display in red, and transmits it. At this time, as shown in FIG. 5A, the LED display unit 25 displays “red 0” only in the leftmost column.

The key input reception processing section 17 issues three commands at regular intervals during the display of the test pattern. The first is an instruction to change the display color in the forward direction, the second is an instruction to move the display position to the right by one, and the third is an instruction to change the displayed number.

When the coloring section 18 receives an instruction to change the display color in the forward direction, it changes the display color data to be added one by one in the order of red → green → orange → red. When the test data creation unit 14 receives an instruction to move the display position to the right by one,
The data stored in the area corresponding to the lit column is moved to the area corresponding to the LED display element in the column on the right of the lit column of the test data storage unit 15, and the data is stored until then. "Space" is stored in the area that was previously set.

When the test data creating section 14 receives an instruction to change the displayed number, the test data storing section 15 sets the data of the area corresponding to the LED display elements in the lit column to 0 → 1 → 2. → 3 → 4 → 5 → 6 → 7 → 8 → 9 →
Change 1 in the order of 0.

Here, as an example, a command for changing the displayed number is 1 second, a cycle for generating a command for changing the display color in the forward direction is 1 second, a cycle for generating a command for moving the display position to the right by 3 seconds, and the like. The period of occurrence is 54 seconds. First, only the leftmost column of the display section displays "red 0", and one second later, the display color changes to green. Further, one second after that, the display color changes to orange, and three seconds after the start, the display color returns to red again, and the display position shifts to the right by one.

Similarly, while changing the display color and the display position, the display is performed as shown in FIG. 5, and when the orange display is performed on the right end of the display unit, the display position is returned to the left end and then displayed. The number changes from 0 to 1 and the same changes are repeated.

The operation after the key input for requesting the end of the test is made is the same as in the case of the first embodiment.

According to the third embodiment, it is possible to perform a test in which only one row of the display section is turned on while sequentially changing the color of the test display, the row to be turned on, and the number to be displayed, and the LED display is performed. It is possible to efficiently detect defects of elements, defects of wiring, or defects that occur during continuous use without overlooking.

In the third embodiment, only one vertical column is displayed and moved horizontally, but only one horizontal column may be displayed and moved vertically.

(Fourth Embodiment) FIG. 6 shows a display state of a test pattern in the fourth embodiment of the present invention.

In the fourth embodiment, in the configuration of FIG. 1, when a key input requesting display of a test pattern is made from the key operation unit 16, the key input acceptance processing unit 17 causes the test data creation unit 14 and the coloring unit 18 to operate. The test data creation unit 5 that has issued a command to display a test pattern on the test data storage unit 15 displays "0" only in the region corresponding to the LED display element at the upper left of the display unit of the test data storage unit 15, and the other regions. Set "space" to all. Further, the coloring section 18 reads the test data accumulated in the test data storage section 15 one by one and adds the display color data so as to display a red color, and transmits it. At this time, it is displayed on the LED display unit 25 as shown in FIG.

When the "R key" is pressed during the display of the test pattern, the key input reception processing section 17 issues a command to the coloring section 18 to change the display color to red. Then, the coloring unit 18 changes the added display color data to red. When the "G key" is pressed, the key input reception processing unit 17 issues a command to the coloring unit 18 to change the display color to green, and the coloring unit 18 changes the display color data to be added to green. When the "A key" is pressed, the key input reception processing unit 17 issues a command to the coloring unit 18 to change the display color to orange, and the coloring unit 18 changes the display color data to be added to orange. In this way, "R key""Gkey"
The color of the test display can be freely changed by pressing the "A key".

When the "right arrow key" is pressed during the display of the test pattern, the key input reception processing section 17 issues a command to the test data creating section 14 to move the display position right by one. Then, the test data creation unit 14 causes the test data storage unit 15 corresponding to the element to the right of the illuminated LED display element.
The data stored in the area corresponding to the lighted LED display element is moved to the area, and the "space" is stored in the area where the data was stored. Conversely, when the "left arrow key" is pressed, the key input reception processing unit 17 issues a command to the test data creation unit 14 to move the display position to the left by one,
Similar data transfer is performed toward the corresponding area of the test data storage unit 15.

Similarly, when the "up arrow key" or the "down arrow key" is pressed, the key input reception processing section 17 issues a command to the test data creating section 14 to move the display position up or down by one, Data transfer to the corresponding area of the test data storage unit 15 is similarly performed. By pressing the “right arrow key”, the “left arrow key”, the “up arrow key”, or the “down arrow key” in this way, as shown in FIG. 6B, the lighting place can be freely moved. .

[Numeric key] during test pattern display
When is pressed, the key input reception processing unit 17 issues a command to the test data creation unit 14 to change the displayed number into the pressed number. Then, the test data creation unit 14 causes the test data storage unit 15 corresponding to the lit LED display element.
Change the data in the area of to the pressed number. By pressing the "numeric key" in this manner, the display of the lighted display element can be freely changed as shown in FIG. 6 (c).

The operation after the test is the same as that of the first embodiment.

As described above, according to the fourth embodiment, it is possible to perform a test in which only one element of the display section is turned on,
You can freely change the color of the test display by pressing the "R key", "G key" or "A key", or press the "right arrow key"
By pressing the "Left arrow key", "Up arrow key" or "Down arrow key", you can freely move the lighting place,
Further, by pressing the "numeric key" to freely change the display contents, it is possible to finely inspect an element defect and a wiring defect relating to a specific LED display element.

Note that the configuration and appearance of the stock price display device, the configuration of the data table, and the processing method are not limited to those of the above-described embodiment, and a wide variety of modifications are allowed without departing from the spirit of the present invention. Is.

Further, although the present invention has been described in the above-mentioned embodiment with the stock price display device as the target, the present invention is not limited to this, and a plurality of LEDs are selectively caused to emit light so that a numeral,
LED that can display display contents such as characters and figures in multiple colors
It can also be applied to an LED display device in which a large number of display elements are arranged.

Furthermore, the pattern to be displayed for the test is not limited to numbers, characters, figures, etc.
A single segment in the display element may be selectively made to emit light of any color.

[0056]

As is apparent from the description of the above embodiments, according to the present invention, the display test of the LED display section can be performed while changing the display content and the displayed color, so that all the LED display elements can be tested. As compared with the conventional device in which the inspection is performed while the light is on, it is possible to easily detect visually the defects of the LED display element, the defects of the wiring, and the defects that occur during continuous use.

Further, according to the present invention, the display test can be conducted by continuously turning on the display elements of the LED display section while continuously changing the displayed number and the displayed color, and the defect can be found efficiently. You can In addition, it is possible to perform a test in which only one row of the display unit is turned on by sequentially changing the color of the test display, the row to be turned on, and the number to be displayed, which is because the adjacent LED display element is turned on. The oversight of defects can be eliminated.

Furthermore, it is possible to perform a test in which only one element of the display section is turned on while freely changing the color of the test display, the lighting location, and the display content by key operation, and the element related to the specific LED display element is defective. With this, there is an effect that it is possible to finely inspect a wiring defect.

[Brief description of drawings]

FIG. 1 is a block diagram of a display device of the present invention,

FIG. 2 is an external view of an LED display element of the display device of the present invention,

FIG. 3 is a diagram showing the order of test pattern display in the first embodiment;

FIG. 4 is a schematic diagram of a test pattern display of the second embodiment,

FIG. 5 is a schematic diagram of a test pattern display of the third embodiment,

FIG. 6 is a schematic diagram of a test pattern display according to a fourth embodiment,

FIG. 7 is an external view of a display unit of a conventional stock price display device.

[Explanation of symbols]

1 TC block 11 Receive edit processor 12 Stock price data storage 14 Test data creation section 15 Test data storage 13 Changeover switch 16 key operation part 17 Key input reception processing unit 18 Coloring part 19 Display data transmitter 2 display blocks 21 Display data receiver 22 Display data storage 23 Display control data storage 24 Display control section 25 LED display

Claims (6)

[Claims] 1. An LED display unit having a large number of LED display elements arranged in a plurality of colors for selectively displaying a plurality of LEDs to display a display pattern such as numbers, characters and figures in a plurality of colors.
In the ED display device, the LE is provided with means for partially changing the display pattern and the displayed color, which facilitates the test of the LED display element.
D display device. 2. The LED display device according to claim 1, further comprising means for continuously and sequentially changing a display pattern and a displayed color. 3. The LED display device according to claim 1, further comprising means for selecting a display pattern and a display color by a key operation. 4. The LED display device according to claim 1, wherein only one row of LED display elements of the LED display section are turned on. 5. The LED display device according to claim 1, wherein only one LED display element of the LED display unit is turned on. 6. The LED display device according to claim 1, wherein the stock price information is displayed by the LED display unit.