JPH0486786A - Light emitting display device - Google Patents

Abstract

PURPOSE:To facilitate the execution of KANJI (Chinese character) display without providing KANJI (Chinese character) dictionary data by providing a random access memory which stores a source program and a read only memory which stores an interpreter. CONSTITUTION:A control section 3 executes various kinds of processing in accordance with the source program stated by the program language of an interpreter type. Namely, the memory stored therein with the interpreter of BASIC which is a high level program language is provided and the display control of a display section 2 is executed by executing the source program stored in the memory while the interpreter successively interprets the source program. The light emitting display device is capable of displaying KANJI (Chinese character) without having KANJI (Chinese character) conversion software and KANJI (Chinese character) dictionary data if the KANJI (Chinese character) display data is stated in the source program in a computer.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a light emitting display that displays characters, etc. on a display screen on which light emitting elements are arranged.

[Prior Art and Problems to be Solved by the Invention] In recent years, this type of light emitting display has been used not only for displaying news on the street and advertising at stores, but also for FA equipment, etc. that displays production control on factory production lines. However, in order to display production management, it is necessary to have a display control device that controls the display based on detection signals from detection switches and sensors installed on the production line, and also to display the display. It is desirable that the program for operating the control device can be updated as appropriate to accommodate changes in conditions on the production line.

Therefore, it is conceivable to connect a general-purpose computer that can perform the display control to a single or multiple light-emitting displays, but this has the disadvantage of increasing the cost of the system because the computer is used exclusively. can be,
Moreover, when a plurality of light emitting displays are connected to a computer, it is not easy to develop software for controlling the plurality of light emitting displays in parallel, which further increases costs.

On the other hand, it is conceivable to provide the light emitting display with a display control device that can perform the display control, but in this case, the display control device is equipped with kanji conversion software for performing kanji kukata and a huge kanji dictionary. Like the former, this method had the disadvantage of increasing product cost because it required data.

[Means for Solving the Problems] In view of the above-mentioned circumstances, the present invention was devised for the purpose of providing a light-emitting display device that can eliminate these drawbacks. In a light-emitting display that displays kanji, etc. on a display section formed by The present invention is characterized in that it includes an access memory and a read-only memory that stores an interpreter that sequentially interprets and executes the source program.

With this configuration, the present invention makes it possible to provide an inexpensive light-emitting display that can display kanji characters without having to use a dedicated computer, kanji conversion software, or a huge amount of kanji dictionary data.

[Embodiment] Next, an embodiment of the present invention will be described based on the drawings. In the drawings, reference numeral 1 denotes a light emitting display, and the light emitting display 1
The display unit 2, which is formed by arranging display elements such as light emitting diodes in a matrix, displays characters, symbols, figures, etc. in a stationary display, a flowing display, and a blinking display based on the display control of a control unit 3, which will be described later. , reverse display, and other various display patterns, but the basic configurations of these are the same as conventional ones.

The control unit 3 is composed of a microprocessor (CPU), memory (RAM, ROM), interface (I/F), etc., and inputs detection signals from detection switches and detection sensors provided on the production line. A display signal is output to the display section 2 based on a judgment based on an input signal, and the control section 3 executes various processes based on a source program written in an interpreted programming language. That is, the control unit 3 is provided with a memory (BAS IC-ROM) in which an interpreter for RASIC, which is a high-level programming language, is stored, and the interpreter sequentially interprets the source program stored in the memory (RAM). The display control of the display unit 2 is performed by executing the command while doing so.

On the other hand, 4 is a computer used as a host computer, and the computer 4 is composed of a so-called personal computer or terminal computer that includes a computer main body 4a, a floppy disk drive 4b, a display 4c, a keyboard 4d, etc. This device is equipped with a kanji ROM (memory that stores kanji fonts) as hardware, and a front-end processor (kanji conversion software), kanji dictionary (data that stores kanji and their readings as pairs), and software.
Equipped with an editor (program writing software), etc.
This allows the computer 4 to write source programs containing kanji.

Reference numeral 5 denotes a cable for connecting a plurality of light emitting displays 1 to the computer 4, and the cable 5 is for transferring a source program written on the computer 4 to the memory (RAM) of the light emitting display 1. However, switching of the light emitting display 1 to be connected is performed by software on the computer 4 side.

In the embodiment of the invention constructed as described above, the luminescent display 1 is written on the computer 4 and then connected to the cable 5.
The display will be performed independently based on the BASIC source program transferred via the computer, and if the source program contains display data for kanji characters, kanji characters will be displayed.

As described above, in the present invention, although the light emitting display 1 is configured to operate the light emitting display based on the detection signal of the detection switch or the detection sensor, the light emitting display 1 is connected to the computer 4.
Since the display operates independently based on the source program transferred from the computer 4, it is possible to disconnect from the computer 4 not only by software (switching the connected display using software) but also electrically (by removing the cable 5). . Therefore.

Multiple light-emitting displays 1 can be created without monopolizing the computer 4 and without using parallel processing software that is expensive to develop.
As a result, a light-emitting display system capable of displaying production management and the like can be constructed at an extremely low cost.

Moreover, although the display can be operated independently, the display operation control is performed based on the interpreted language source program written in the computer 4, so the kanji display data is not included in the source program. By writing, the kanji can be displayed in a luminescent manner. That is, the light-emitting display 1 can display kanji characters using the above-mentioned software that the computer 4 normally has, without kanji conversion software or kanji dictionary data. Therefore, not only can the memory capacity be significantly reduced, but the cost of providing the above-mentioned software can also be eliminated, thereby significantly reducing product costs.

It goes without saying that the present invention is not limited to the above-mentioned embodiments, and for example, the programming language is not limited to RASIC as long as it is an interpreted language.

[Operations and Effects] In summary, the present invention is configured as described above, and although the display section formed by arranging the light emitting elements displays kanji, etc., the light emitting display is Since the display is operated independently based on the interpreted language source program written in the input device, the external input device and the light emitting display can be separated after the source program is transferred from the external input device.

Therefore, it is possible to control the display operation of multiple light-emitting displays without having to monopolize a computer as an external input device or developing parallel processing software that is expensive to develop. The system can be constructed at extremely low cost.

Furthermore, although the display can be operated independently, the display operation in the light-emitting display is performed based on an interpreted language source program written in a computer, so the kanji display data is not included in the source program in the computer. By writing , the light-emitting display can display kanji characters without having to have kanji conversion software or kanji dictionary data. Therefore, not only can the cost of providing the above-mentioned software be eliminated, but also the memory capacity can be significantly reduced, resulting in a significant cost reduction.

[Brief explanation of the drawing]

The drawings show an embodiment of the light-emitting display according to the present invention, and FIG. 1 is a plan view showing the connection state between the light-emitting display and a computer, and FIG. 2 shows the internal configuration of the light-emitting display. It is a block diagram. In the figure, 1 is a light emitting display, 2 is a display section, 3 is a control section, 4 is a computer, and 5 is a cable.

Claims (1)

[Claims] In a light-emitting display that displays kanji or the like on a display section formed by arranging light-emitting elements under the control of a display control section, a source program in an interpreted language written in an external input device in the display control section; 1. A light emitting display comprising: a random access memory for storing the source program; and a read-only memory for storing an interpreter that sequentially interprets and executes the source program.