JPS61141486A - Display controller - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a display control device that displays display information on a display having fewer digits than the clear number of digits to be displayed.

[Prior Art] Conventionally, when displaying screen information consisting of, for example, 80 digits using a 40-digit display, only the first 40 digits could be displayed, and the remaining 40 digits could not be displayed at all.

[Problems to be Solved by the Invention] However, if only half of the number of digits of screen information can be displayed in this way, text confirmation becomes insufficient, and there is a corner problem in that the display function cannot be fully fulfilled.

This invention was made to solve such a problem, and it is possible to display all screen information with a simple operation in a device that displays screen information on a display with fewer digits than the number of digits of the screen information. It is an object of the present invention to provide a display control device that can reliably check the display of the entire screen information.

[Means for Solving the Problems] The present invention provides a screen information memory that can store one line of screen display information with N digits, and a display device that displays S (≦T) lines of screen display information with M (<N) digits. and a means for displaying screen display information from 1 to M digits in the screen information memory on this display, a shift switch, and a means for displaying screen display information in the screen information memory on the display each time the shift switch is operated. (≦M) digit-by-digit shifting means.

[Operation] In the present invention having such a configuration, initially the first M digits of the screen information are displayed on the display, but by operating the shift switch, the screen information displayed on the display can be shifted to digits. By repeating this, all of the screen information will be displayed.

[Embodiments of the invention] Embodiments of the present invention will be described below with reference to the drawings.

Figure 1 is a block diagram showing the circuit configuration, and 1 is a CPLJ.
(Central processing unit F), 2LtROM (IJ-only memory), 3 RAM (Random access memory)
4 is a display RAM, 5 is an I10 port, and 6 is a display controller. The CPU1 and ROM2,
The RAM 3, display RAM 4, I10 board 5, and display controller 6 are electrically connected via a pass line 7.

The ROM 2 stores program data for the CPU 1 to control each section. The RAM 3 contains the c
A memory is set up to store data necessary for pui to control each part.

The display RAM 4 is provided with a screen information memory 8 capable of storing one line of screen display information in N digits as shown in FIG. The I10 boat 5 has a shift switch 9.
An input device f10 including an input device f10 is connected. The display controller 6 has M (for example, N/2) as shown in FIG.
A CRT with a screen 11 that can display one line of information in digits)
A display 12 made of a liquid crystal or the like is connected.

When the CPU 1 displays the screen information in the screen information memory 8 on the display 12, it calls and displays the first M digits. When the shift switch 9 is operated in this display state, the display process shown in FIG. 2 is performed based on the program data in the ROM 2. That is, when the shift switch 9 is operated, it is checked whether the next shift is possible. This is because it is determined that shifting is not possible when the Nth digit of the screen information is displayed. If shifting is possible, the screen information from the screen information memory 8 is shifted by K (≦M) and called up and displayed on the display 12. The information displayed by this shift is continuously controlled as long as the shift switch 9 is turned on. After confirming that the shift switch 9 is OFF, it is determined whether the shift switch 9 is ON again. When the shift switch 9 is turned on again, the screen information in the screen information memory 8 is shifted by digits and displayed on the display 12 in the same manner as described above. At this time, if the shift switch 9 is not turned on for 2 seconds, the screen information memory 8's screen information retrieval shift is stopped, the screen information retrieval is returned to its initial state, and the display returns to the first M digit display.

In the embodiment of the present invention having such a configuration, first, the first M digits of the screen information memory 8 are displayed on the screen 11 of the display 12. When the shift switch 10 is turned on in this state, the screen information to be displayed is shifted by digits, and the screen information from the digit to the M+ digit is displayed on the display 12. Furthermore, turn the shift switch 10 to 0FFL/then turn it on again.
As you operate, the screen information displayed will shift digits roughly,
display! 112 displays screen information from the second digit to the M+2 digit. In this way, the operation of shift switch 9 is
By repeating the steps 2 to 2, the Mth to Nth digits of the screen information memory 8 are finally displayed. Therefore, all the screen information in the screen information memory 8 is displayed on the display 12 by a simple operation of repeatedly operating the shift switch 9, and the display of the screen information can be reliably confirmed.

Furthermore, by holding the shift switch 9 in the ON position, the screen display on the display 12 maintains the shifted display state at that time, so the information content in a certain digit range can be fully confirmed, making it easy to use. It is excellent. Furthermore, when it is desired to return the display contents to the initial state, simply turning the shift switch 9 to the OFF state returns the screen display to the initial state two seconds later, and in this respect as well, the screen display is excellent in terms of ease of use.

Therefore, it is possible to reliably confirm the entirety of not only text but also graphical displays, thereby improving practicality.

[Effects of the Invention] As detailed above, according to the present invention, in a device that displays screen information on a display device having fewer digits than the number of digits of the screen information, all of the screen information can be displayed with a simple operation. Therefore, it is possible to provide a display control device that can reliably check the display of the entire screen information.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention. Fig. 1 is a block diagram showing the circuit configuration, Fig. 2 is a flowchart showing the display processing when operating the shift switch, and Fig. 3 is the screen information memory and display by screen shift. It is a diagram showing the correspondence relationship between the device and the screen. 7. 1...CPtJ (central processing unit), 2...ROM
(Read-only memory), 4... RA for display
M, 8...Screen information memory, 9...Shift switch, 12...Display device. (i'f 1 figure

Claims (1)

[Claims] A screen information memory that can store screen display information of T rows with N digits, a display device that can display screen display information of S (≦T) rows with M (<N) digits, and a screen display of the screen information memory on this display device. means for displaying information from 1 to M digits, a shift switch, and means for shifting the screen display information of the screen information memory displayed on the display device by K (≦M) digits each time the shift switch is operated. A display control device comprising: