JP3312070B2 - Extended free display system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an extended free display system which can be installed indoors and outdoors, can form a display panel unit of a desired size according to a use and an installation place, and can perform various display controls.

[0002]

2. Description of the Related Art In a conventional LED display system, a plurality of single LED lamps are arranged vertically and horizontally to form a panel of a desired display size in a matrix.
It is driven by a dedicated control board equipped with U, ROM, and RAM.

[0003]

In the case of the conventional LED display system, the fixed display panel and the dedicated control board are manufactured in a one-to-one relationship, so that the display panel unit according to the application and the installation place can be freely set. When a display panel unit of a desired size cannot be constructed and a display panel unit of a desired size is constructed, it is necessary to request a design of a dedicated control board corresponding to the panel each time from a manufacturer.

Further, in order to configure an LED display system, a single LED, a display panel unit, a control board, and editing software are required. However, the production of the system is limited to a manufacturer having all of these technologies.
There was a problem that versatility and sales expansion of the LED display system were restricted.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and it is possible to construct a display panel unit having a desired display size according to a use or an installation place, and to use a general-purpose display panel unit regardless of the display size. The present invention provides an extended free display system capable of performing various display controls with a small number of display panel units using a control processor unit (control board).

That is, the extended free display system of the present invention
Installations, substitute as can address to write and read the predetermined position of the display data memory based on data from the CPU to do a variety of display control in the display panel unit, each other
Display panels arranged in two directions
Panel unit and the plurality of display panel units adjacent to each other.
The display panel unit that connects the units electrically
Port connection means and the plurality of display panel units in common.
Consists of a control processor unit that controls display driving
The control processor unit records the display data.
A display data memory for storing the plurality of display panel units.
Display row, which is one direction in the arrangement direction of the
To the display stored in the display data memory.
Display stage switching means for outputting data, and the plurality of displays
Panel size data according to the display size of the panel unit
Output the address selection data and output
Addressing a predetermined position in the display data memory
Is read and written by the display stage switching means.
Control means for switching the display to output a display .

Further, the extended free display system of the present invention is characterized in that data can be freely exchanged with an external storage device such as a personal computer, various sensors, a relay, and the like.

Further, the display panel unit of the present invention is an LE
It is a D display panel unit.

[0009]

According to the present invention, a user can freely construct a display system by purchasing a display panel unit having a desired display size and a general-purpose control board in accordance with a use or an installation place.

Further, according to the present invention, since a predetermined position of the display data memory can be addressed, written and read, a plurality of sequences can be simultaneously executed on the display panel unit, or each display screen can be moved in dot units. Etc.
Various display controls can be performed with a small number of display panel units.

Further, the present invention is to transfer display data created in an external storage device and display it on a display panel unit, or to drive a display panel unit by data obtained from various sensors, relays and the like. Can be.

According to the present invention, the individual LED display panel units can be connected by a connector provided on the rear surface, and these are combined and connected by a CRT or a liquid crystal panel.
If you do, there is a problem that the seam appears on the boundary line.
In contrast, on the front side of the display panel, the seam does not appear at the boundary.

[0013]

An embodiment of the present invention will be described with reference to the drawings.

As shown in FIG. 1, the display panel unit 1 is L
It is composed of an ED display dot matrix, and it is possible to construct a display with a flexible display size according to needs such as applications and installation conditions from 2 characters to a maximum of 16 characters and 4 columns. The display panel unit 1 can be sold according to a user's request. The control board 2 has a CPU and an R which can adapt to any of these flexible display sizes.
This is a general-purpose control processor unit on which the OM 3, the RAM 4, the display panel unit drive circuit 5, and the like are mounted. The control board 2 is provided with a connector for inputting signals from the memory card 6, the sensor, the relay 7, and the like.

FIG. 2 is a diagram showing connection means on the back surface of the display panel unit 1 constructed according to the present invention, and FIG. 3 is an enlarged view of a portion A of the connection connector 8 in FIG.

As is clear from the drawing, the individual display panel units 1a and 1b are electrically connected to each other on the back side by a connection connector 8. Individual display panel units 1a,
The seam does not appear on the boundary line on the front side of 1b, and the display panel unit can provide a seamless and easy-to-view image.

FIG. 4 is a block diagram showing a driving circuit of the display panel unit. Display data memory (red) 51
When the data is written into the memory, the selector 52 enters the write mode, and a predetermined address position of the display data memory 51 is set based on the address data from the CPU. CP
The data from U is stored in the address-selected area via the buffer 53 for temporary storage.

On the other hand, when reading data from the display data memory 51, data is added from the CPU to the refresh address counter 55 via the buffer 54. C
The data from the PU is output in accordance with the display panel size. The refresh address counter 55 sets the selector 52 to the read mode based on the data, and selects a predetermined address of the display data memory 51. That is,
An address at a desired position in the display data memory 51 can be selected based on data from the CPU, and address selection and panel display can be performed according to the display size of the connected display panel unit.

The parallel output of the display data memory 51 is applied to a driver 59 via a display stage switching circuit 57 and a synchronizing circuit 58 via a circuit 56 for serial conversion.

Connectors CN60a, 60b, 60c, 6
0d is connected to a four-stage display panel unit, and the display stage displays signals from the refresh timing circuit 61.
A desired stage is switched by being input to the indicated stage switching circuit 57 . The synchronization circuit 58 is connected to the clock frequency division and timing pulse generation circuit 62.

The driver 59 receives red or green data, a latch signal, an enable signal, a clock signal from the line address generating circuit 63, and the like. The clock frequency dividing and timing pulse generating circuit 62 includes a CPU.
Is applied. Writing to or reading from the green display data memory 51 'is executed in the same manner as described above.

As described above, since the address of the display data memories 51 and 51 'can be selected based on the data from the CPU, it is possible to display at any dot on the display panel, and it is possible to perform various displays with a small number of display panels.

FIG. 5 is a diagram showing a configuration of a control board used in the present invention.

The display panel unit includes a ROM 3a, 3b, a RAM 4, a CP mounted on the control board 2.
U and the display panel unit drive circuit 5.

The display data is stored on the control board 2.
Computer 9 and electronic notebook 1 connected to
0, and can be input from an external storage device such as the modem 11.

Further, the control board 2 can receive a sensing signal from a sensor, a relay 7 or the like, and can drive a display panel unit. For example, in a parking lot or the like, a message is turned on or off according to car entry and exit. Or become possible.

FIG. 6 is a flow chart that can simultaneously execute a plurality of sequences on the LED display panel.

The RAM has a command table in which file names of data to be displayed are recorded. As the file name, for example, a command name indicating eight sequences and data or a graph are recorded. The command names are, for example, up, down, left, right scroll, and jump.

First, in step 1 (S1), the file name to be executed is searched from the RAM, and the file name xxxx is changed to RA.
The first record called from M is executed (S2). Next, the command name is interpreted by the ROM (S3), and the process proceeds to a subroutine (S31 to S33). When the interpretation is completed, the pointer of the command table is incremented by 1 (S
4) Then, judge whether the total number of commands is greater than the number of executed commands 8 (S5), and if NO, interpret the next command name.

According to this flowchart, conventionally, when a plurality of sequences are simultaneously executed, a display screen is divided and sentences and graphs are respectively displayed in divided regions.
According to this embodiment, a plurality of sequences of sentences and graphic data can be displayed simultaneously, and different movements can be performed in the sequences.

FIG. 7 is an explanatory diagram showing the priorities of screens, and FIG.
Is a flowchart for executing this.

Here, a screen P1 showing a picture of a mountain is stored in the RAM.
And a screen P2 showing the character A are recorded. In this case, a case where the screen P1 of the superimposed display is scrolled is shown.

First, the data of the screen P2 (character A) is drawn on the display RAM (S101). Next, the data of the screen P1 is drawn from the address of the display RAM (S10).
2). The data of the screen P1 of the display RAM is scrolled to the left by one dot (S103). The data of the portion hidden from the base screen of the screen P2 is copied to the address of the display RAM (S104). Next, the number of scrolls is incremented by one (S105), and the process is repeated until the end (S106).

Conventionally, when performing animation display, dozens of moving images are prepared, but according to the present embodiment,
Since it can be displayed in dot units and a plurality of sequences can be executed simultaneously, various animations can be displayed on a small number of panels with a small amount of data.

FIG. 9 is a flowchart for executing text drawing.

In this embodiment, for example, three types of blink operations are possible.

Both the character color and the base color blink.

The character color changes to the base color and blinks.

Both the character color and the base color blink in a complementary color relationship.

A character code and an attribute code are recorded in the text data of the RAM. As the attribute code, the color, size, blink (blinking) cycle, blink type, shadow, and the like of the character are recorded.

FIG. 9 shows a flowchart in the case where a blink cycle is recorded as an attribute code.

If the blink period T is longer than the designated blink interval CT, text 0 is drawn (S20).
4) If it is smaller, draw text 1 (S20)
5). Since the text areas 0 and 1 are switched by designating the blink interval T, the blinking time can be arbitrarily set for each of the two types of text.

The same applies to other character colors and sizes.

[0044]

According to the present invention, it is possible to construct a display panel unit having a desired display size according to a use or an installation place.
Since a variety of displays can be performed with a common control board for each display system, it is possible to provide a display system that meets the needs of the user. In addition, since signals can be input and output from an external storage device, various sensors, relays, and the like, display data created by a handheld personal computer or the like can be easily imported, and display data can be controlled by sensors or the like. .

Further, by using the LED display panel unit as the display panel unit, it is possible to perform a seamless screen display at the boundary of each display panel unit.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an extended free display system of the present invention.

FIG. 2 is a rear view of the display panel unit of the present invention.

FIG. 3 is an enlarged view of a connector for connecting a display panel unit according to the present invention.

FIG. 4 is a block diagram showing a drive circuit of the display panel unit of the present invention.

FIG. 5 is a configuration diagram of a control board of the present invention.

FIG. 6 is a flowchart showing a display drive control step of the present invention.

FIG. 7 is an explanatory diagram of a display screen according to the present invention.

FIG. 8 is a flowchart showing a display drive control step of the present invention.

FIG. 9 is a flowchart showing a display drive control step of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Display panel unit 2 Control processor unit (control board) 3 ROM 4 RAM 5 Display panel unit drive circuit 6 Memory card 7 Sensor, relay 8 Connector for connection

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-6-195039 (JP, A) JP-A-3-245222 (JP, A) JP-A-1-164995 (JP, A) 103874 (JP, U) JP 4-75707 (JP, B2) (58) Fields surveyed (Int. Cl. ⁷ , DB name) G09G 3/32 G09G 3/20

Claims (3)

(57) [Claims] 1. A plurality of each of two directions orthogonal to each other
And a display panel unit arranged, to connect electrically coupling the unit adjacent the display panel unit of the plurality of
And table display panel unit connection means is configured to pre SL multiple tables display panel unit and a control processor unit for displaying driving commonly controlled, said control processor unit includes a display data memory for storing display data, said plurality of One of the display panel units in the array direction
The display stage is switched to the desired stage,
Display disconnection to output the display data stored in the data memory
Means for changing the display size of the plurality of display panel units.
Output channel size data and address selection data
Is output to address the predetermined position of the display data memory.
Write and read the display data, and
Control means for switching the display stage and outputting the display
An extended free display system characterized by comprising steps . 2. The extended free display system further comprises:
2. The apparatus according to claim 1, further comprising: a memory input / output unit for inputting / outputting information from an external storage device; and a sensing input / output unit for inputting / outputting a sensing signal of various sensors and relays. The extended free display system described. 3. The display panel unit includes:
The extended free display system according to claim 1 or 2 , wherein the extended free display system is an LED display panel unit that displays display information such as characters.