JPH09160747A - Device and method for display - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the screen switching operability and smoothly read the document, etc., of next screen by moving the document of the final line which is currently displayed, and adding discrimination information and displaying the document on the next screen when the instruction to switch display data is given. SOLUTION: Document information (switching request for next screen, specified document number, copy of characters, and data such as deletion information) specified with an input device such as a pen 1 and a keyboard 2 is sent to a CPU 11. The CPU 11 reads document data out of an FDD3, an HDD4, etc., according to the information and stores data to be displayed on a display 6 in an image memory 21. When the instruction to switch the display data stored in the image memory 21 is given from the input device, the document of at least the final line which is currently displayed is moved and displayed on the next screen. Further, the display color of the current screen displayed on the next screen is changed or a discrimination mark is provided nearby the boundary of the area to make it easy to confirm the display area of the previous screen.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device, and more particularly to display control for displaying the next screen.

[0002]

2. Description of the Related Art Japanese word processors have a limited number of characters that can be displayed on the display screen at one time. for that reason,
When reading a document having a large document volume on the display screen, the currently displayed screen (current screen) is switched to the next screen (next screen), and the document is continuously read.

When switching screens, the operator keeps pressing the scroll key from the input device such as a keyboard each time and stops the operation of the scroll key at an appropriate position.
I had to do the act of reading the document.

Further, when the screen is scrolled by the scroll key, there is a problem that the last line of the screen before scrolling is hard to be visually recognized.

[0005]

The Japanese word processor is limited in the number of characters that can be displayed on the display screen at one time. Therefore, when reading a document with a large document capacity on the display screen, the currently displayed screen (current screen) is switched to the next screen (next screen), and the document is continuously read.

When switching the screen, the operator keeps pressing the scroll key from the input device such as a keyboard each time and stops the operation of the scroll key at an appropriate position.
Since the operation of reading a document has to be performed, there is a problem that operability is poor and it takes time.

Further, when the screen is scrolled by the scroll key, there is a problem that the last line of the screen before scrolling is hard to be visually recognized.

The present invention solves the above problems, improves the screen switching operation, and displays a part of the previous screen (for example, the document in the last line) to smoothly read the document in the next screen. It is an object of the present invention to provide a display device capable of achieving the above.

[0009]

In a display device having a display for displaying data and an image memory storing data to be displayed on the display, an instruction to switch the display data stored in the image memory is issued. Based on the input means and the information from the input means, at least the last line document currently displayed is moved and displayed on the next screen, the display area of the current screen displayed on the next screen Can be achieved by providing additional means for adding identification information.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 shows a display device according to the present invention, which stores a CPU 11 for controlling the device, a display 6 for displaying character information and the like, and a program for operating the device when the power is turned on. IPL 12, program memory 13 for storing programs and data, dictionary memory 18 for storing dictionary data used for kana-kanji conversion, character generator for storing data such as character patterns to be displayed on display 6 (hereinafter C
19), an image memory 21 for storing data to be displayed on the display 6, a display controller 20 for controlling writing of data to the image memory 21, reading control, and conversion to display data on the display 6,
A key input controller 14 for controlling when the CPU 11 detects information input from the keyboard 2 and the pen 1 between the keyboard 2 and the pen 1, the keyboard 2 and the CPU bus 22, which are input devices, and stores document information and the like. Floppy disk drive device (hereinafter referred to as FDD) 3, FDD 3 and CPU bus 2 which are external storage devices for storing
A floppy disk controller (FDC) that controls the access of the FDD 3 to the CPU 11 between the two.
15, a hard disk drive device (hereinafter referred to as HDD) 4, which is a high-speed external storage device for storing programs, character pattern information for printing, etc. 4, HDD 4 and CP
A hard disk controller (hereinafter referred to as HDC) 16 that controls when the CPU 11 accesses the HDD 4 between the U bus 22, a printer 5 that is a printing device, a printer 5, and a printer 5 that is between the CPU bus 22 and the printer 5.
A printer controller 17 that controls when the PU 11 transfers data, and a CP that connects the above-described components.
It is composed of a U bus 22 and internal buses 23 and 24.

When the power of the display device having the above-mentioned configuration is turned on, the CPU 11 executes a program stored in the IPL 12 from the HDD 4 via the CPU bus 22 according to a program stored in the IPL 12 so that the device operates as a display device. Transfer to 13. After the transfer is completed, the CPU 11
The operation is started from the execution start address of the program.

Here, an example of processing when a document stored in the FDD 3 or the HDD 4 or the like is displayed on the display 6 will be shown below.

Document information designated by an input device such as the pen 1 or K / B 2 (the document information means data such as a request for switching the next screen, a designated document number, a copy of a character, deletion information). It is detected by the key input controller 14 and transmitted to the CPU 11 via the CPU bus 22. When reading a document, the CPU 11 uses the information to read the CPU bus 2
FD by controlling FDC15 or HDC16 via 2
The document data stored in the D3 or the HDD 4 is stored in the program memory 13. Then, based on the document data and the program stored in the program memory 13, the character pattern or the like is read from the CG 19 which stores the character pattern or the like to be displayed on the display 6. Next, here, the read character pattern or the like is written in the display controller 20. The display position on the display 6 is determined according to the program stored in the program memory 13. The display data written to the display controller 20 is temporarily stored in the image memory 21 via the internal bus 23, and then the display controller 2
Is converted to display data on the display 6 by 0,
Documents and the like are displayed on the display 6 via the internal bus 24.

Next, in this embodiment, based on FIG. 1 and FIG. 3, when the next screen is displayed, the last line of the current screen is displayed in the front line or the top line of the next screen. An example will be described.

FIG. 1 shows a processing flow for switching the screen of a displayed document. 3 and 4 are shown in FIG.
FIG. 3 shows an example of a display screen switched according to the processing of FIG. 3, FIG. 3 shows a screen currently displayed (current screen), and FIG. 4 shows a screen to be displayed next (next screen). .

When the current screen shown in FIG. 3 is displayed, the process 25 shown in FIG. 1 is executed. In process 25, it is detected whether there is a request to switch to the next screen by the pen 1 or K / B2 which is an input device. If there is no request to switch to the next screen, the process moves to process 27, the current screen is continuously displayed, and the process returns to process 25.

When the request for switching to the next screen is detected by the pen 1 or K / B2 which is the input device in process 25, the process proceeds to process 26.

In the process 26, the last line "becoming cheaper until then" of the current screen displayed in FIG. 3 is moved to the rightmost line of the display screen as shown in the next screen display of FIG. Then, the process of displaying the document following the last line of the current screen is executed. This moving process of the last line can be realized by changing the display address of the last line to the display address of the frontmost line (the rightmost line on the screen or the top line on the screen). Further, in the process 26, the front screen display area can be easily distinguished from the newly displayed document by shading the front screen display area.

In this embodiment, only the last line of the current screen is displayed on the next screen, but the number of lines of the current screen displayed on the next screen can be two or more. That is clear.

Further, in the present embodiment, an example in which the last line of the current screen is displayed on the rightmost line of the screen on the next screen is shown. However, in the case of horizontal writing as shown in FIGS. 5 and 6. Also, it is obvious that the present invention can be realized, and the number of lines of the current screen can be displayed in one line or in two or more lines.

FIG. 5 shows the current screen display, and FIG. 6 shows the next screen display. FIG. 6 shows an example in which the last line of the current screen is displayed on the top line of the next screen.

Further, in the present embodiment, the display area is identified by shading the current screen display area. However, it is also possible to identify the display area with a triangular mark as shown in FIG. It is obvious that the display area can be identified by color.

Even when the document of FIG. 7 is displayed horizontally, it is apparent that the triangular mark can be displayed between the lines.

[0025]

As described above, by using the present invention, screen switching operability can be improved, and a part of the current screen is displayed, so that the flow of a document can be easily grasped. Also, by changing the display color of the display area of the current screen displayed on the next screen and the display color of the new display area displayed on the next screen, or by providing an identification mark near the boundary of the area, The display area of can be easily confirmed.

[Brief description of the drawings]

FIG. 1 is a process flow for switching a screen of a display document according to an embodiment of the present invention.

FIG. 2 is a configuration diagram of a display device that is an embodiment of the present invention.

FIG. 3 is a current screen display diagram of a vertically written document.

FIG. 4 is a diagram showing the next screen of a vertically written document.

FIG. 5 is a current screen display diagram of a horizontal writing document.

FIG. 6 is a view showing a next screen of a horizontally written document.

FIG. 7 is a next screen display diagram with identification marks.

[Explanation of Codes] 1 ... Pen, 2 ... K / B, 3 ... FDD, 4 ... HDD, 5 ...
Printer, 6 ... Display, 11 ... CPU, 12 ... I
PL, 13 ... Program memory, 14 ... Key input controller, 15 ... FDC, 16 ... HDC, 17 ... Printer controller, 18 ... Dictionary memory, 19 ... CG, 20 ...
Display controller, 21 ... Image memory.

Claims (3)

[Claims] 1. A display device comprising a display for displaying data and an image memory storing data to be displayed on the display, and input means for instructing switching of the display data stored in the image memory, Based on the information from the input means,
Move at least the last line of document that is currently displayed,
A display device characterized by comprising display means for displaying the frontmost line of the next screen and addition means for adding identification information to the display area of the current screen displayed on the next screen. 2. A display method in which a display displays data, and an image memory stores data to be displayed on the display, wherein the input means instructs switching of the display data stored in the image memory and displays the data. The means moves, based on the information from the input means, at least the last line document currently displayed and displays it on the next screen, and the adding means moves the document of the current screen and the next screen displayed on the next screen. A display method that distinguishes it from the document on the screen. 3. A display device comprising a display for displaying data and an image memory storing data to be displayed on the display, and input means for instructing switching of the display data stored in the image memory, Based on the information from the input means,
A display characterized by including a display means for moving the currently displayed document by two lines or more and displaying it on the next screen, and an addition means for adding identification information to the display area of the current screen displayed on the next screen. apparatus.