JPS62112196A - Display - 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 [Technical Field] The present invention relates to a display method for an information processing device such as a portable Japanese word processor whose size is strongly limited.

[Prior art] In conventional information processing devices such as Japanese word processors,
When the display device was small, the display section was viewed as a "window" and the entire page could be seen by scrolling left, right, up and down.

[Problems to be Solved by the Invention] However, as shown in Figure 9, in this case, characters outside the display cannot be read, so increasing the number of display lines does not contribute to readability at all. Ta. In other words, since the text is continuous in the horizontal direction, readability could not be improved unless the display device was stretched horizontally. This is considered to be a drawback of causing a significant increase in cost when liquid crystal is used in the display device.

SUMMARY OF THE INVENTION In view of the above drawbacks, an object of the present invention is to provide a display method that does not impair the readability of text even if the horizontal length of a display device is limited.

[Means for solving the problem] Originally, character string data handled by information processing devices such as Japanese word processors was stored in a string shape (
-dimensional) continuous data, and is converted into a two-dimensional array according to the format called a page when printing, but this string-like character string data is converted to the horizontal length of the display device, The present invention is to display images by sequentially folding them.

[Example] FIG. 1 is a block diagram showing the configuration of the present invention.

In the figure, code 1 is a keyboard for inputting character strings, code 2
3 is the central processing unit, and 3 is the one that stores document data (R
In AM, document data is arranged at consecutive addresses. Reference numeral 4 is a device for displaying the document data.

A method for implementing the present invention will be explained based on the flowchart shown in FIG.

Assume that the displayable area of the display device 4 is 10 columns and 4 lines. If the data in data area 3 is displayed starting from the first row and first column, the 11th character data will go off the screen. Therefore, if we decide to display the data that goes off the screen starting from the first column of the next line, 40 consecutive characters will be displayed on the screen at once.

According to the display method realized in this way, a certain number of characters can be viewed at once without moving the screen horizontally.

Next, details of the present invention will be explained below while also referring to the hardware configuration.

First, FIG. 4 is a block diagram showing an example of the hardware configuration necessary to implement the present invention.

The CPU 30 sends data to be displayed on the display unit 32 to the VRA.
The display control circuit 31 is a C
This is for displaying data written in the VRAM 34 by the PU 30 on the display unit 32. A bus 33 is used for data exchange between the CPU 30 and the VRAM 34, or between the display control circuit 31 and the VRAM 34, and for transmitting address information.

Further, FIG. 5 shows the internal configuration of the display control circuit 31 in more detail. Here, in the VRAM address register 40, the starting address of the data to be displayed among the data stored in the VRAM 34 is stored by the CPU 30. Similarly, the number of display rows and the number of display columns indicating the physical screen size of the display section 32 are stored by the CPU 30 in the display row register 42 and the display column register 43, respectively. Here, 47 is an internal bus for transmitting data in each register A or reading data from each register, and 46 is an interface for connecting with bus 33.

In the VRAM 34, data strings to be displayed are stored as shown in FIG. That is, data is stored in continuous form at consecutive addresses without any breaks. Various types of data are displayed by the CPU 30 operating a pointer 50 indicating the start address of the data to be displayed. In other words, manipulating the address pointed to by the pointer 50 means manipulating the value set in the VRAM address register 40.

In other words, various data are displayed according to the values set in the VRAM address register 40.When display data is written to the VRAM 341, display starts or the display is started by the display control circuit 31.
A processor (not shown) in the internal memory first inputs the value stored in the VRAM address register 40 into the VRAM address counter 41, the value stored in the display row register 42 into the display row counter 44, and the value stored in the display column register 43. The current value is transferred to the display column counter 45. after that,
The system interface 5 is placed at the address indicated by the VRAM address counter 41.
0 is moved, and the data starting from that address is displayed at the display position indicated by the display row counter 44 and the display column counter 45. Then, each time one character is displayed, the display column counter 45 counts down by one, and when it reaches 0, the value of the display column counter 44 decreases by one count, and the number of columns is counted down from the display column register 43 again. Transferred to 45. When the display line counter 44 reaches 0, the display for one screen is finished.

In the above case, display row register 42, display column register 43
The value set to is a value that matches the physical size of the display screen of the display unit 32. On the other hand, according to the value shown in the VRAM address counter 41, the pointer 50
34, moving one address at a time. Therefore, one line can be folded and displayed.

The flowchart in Figure 2 shows an example in which the number of digits is counted up as each character is displayed, and when it exceeds a predetermined value, the number of lines is counted up. I used an example of going down from the value. There are various methods for setting the display position, and either the method shown in FIG. 2 or the method shown in FIG. 5 may be used, and the two methods are not contradictory.

Next, an embodiment will be described in which an image to be printed and a folded display according to the present invention are displayed in comparison.

FIG. 7 shows an example in which a folded display and an image of one printed page are displayed at the same time. The left side is a folded image, and the right side is a reduced image of one printed page. For example, one line on the right side is displayed overlapping four lines on the left side.

FIG. 8 is a diagram illustrating in detail the inside of the display control circuit 31 necessary for simultaneously displaying the folded display and the layout display as shown in FIG. 7. The same components as in FIG. 5 are given the same numbers.

Layout row register 70. Layout column register 71
The number of rows and columns of one page to be printed are set by the CPU 30.

Suppose that you are currently performing a folded display and, for example, press a special key at a certain point to instruct the display to be displayed. In this case, the CPU 30 recognizes this and instructs a processor (not shown) in the display control circuit 31 to display the layout. Then, the processor first stores the contents of the layout row register 70 in the layout row counter 72.
At the same time, the contents of the layout column register 71 are transferred to the layout column counter 73, and the switching device 7.1 is operated to switch the outputs from the display row counters 4 and 4 and the display column counter 45 to the internal bus 47. Oh, Leila!
- Connect the outputs from the row counter 72 and layout column counter 73 to the internal bus 47. Also, the contents of the VRAM address counter 41 when the folded display is displayed are as follows.
The data is temporarily saved by the CPU 30 to a storage area (not shown). Then, the start address of the display data is again transferred from the VRAM address register 40 to the VRAM address counter 41, and the VRAM address counter 41 is counted up until it becomes equal to the previously saved address value. At the same time, the contents of the layout row counter 72 and layout column counter 73 are also updated.

Here, display positions are independently assigned to the display screen on the right side (layout screen) and the display screen on the left side (folding display screen) in FIG.
4, the display position on the layout screen or the display position on the folded display screen is selected.

Although not shown in FIG. 8, the outputs from the layout row counter 72 and the layout column counter 73 are each reduced in accordance with the reduction ratio and sent to the display section 32. This is because the layout cannot be displayed otherwise.

In addition, the number of rows and columns corresponding to one page of printing are set in the layout row register 0 and layout column register 71, so that as a result, the layout screen will display the number of lines and columns corresponding to one page of printing. That will happen.

Further, in the above explanation, a Japanese word processor was used as an example, but the present invention is not limited to this, but can also be applied to a display device of a so-called personal computer.

[Effects] As described in detail above, according to the present invention, character string data displayed in adjacent upper and lower lines becomes logically continuous, and even if the horizontal length is limited, , the ability to display multiple lines vertically! If possible, this will result in the effect that sentences with a long number of characters can be read without horizontal scrolling. In other words, one line can be easily read without any additional operations required.

Furthermore, when scrolling, it takes time to display the screen due to screen changes, etc., but according to the present invention, this can be prevented and even horizontally long sentences can be read quickly.

[Brief explanation of drawings]

FIG. 1 is a diagram showing the configuration of the present invention. FIG. 2 is a flowchart showing the operation of the present invention. FIG. 3 is a diagram showing the format of character string data. FIG. 4 is a block diagram showing an example of the hardware configuration necessary to implement the display method of the present invention. FIG. 5 is a diagram illustrating the display control circuit 31 of FIG. 4 in detail. Figure 6 shows that character string data is stored in the VRAM 34 of Figure 4.
The figure which shows the form which is stored in. FIG. 7 is a diagram showing an example of a case where folded display and layout display are simultaneously realized. FIG. 8 is a diagram showing an example of a display control circuit for simultaneously realizing folded display and layout display. FIG. 9 is a diagram illustrating a conventional scrolling display method. 30...CPU 31...Display control circuit 44...Display row counter 45...Display column counter and above Figure 2 30 3.1. 2 Flute 4 factors 5th ward 7th Δ'140 8th ward

Claims (1)

[Claims] A display method, in a display device of an information processing device, characterized in that an input character string is displayed while being folded to a length that does not require horizontal scrolling.