JPS59219785A - display device - 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 Application of the Invention] The present invention relates to a display device that has a scroll display function for display images and is capable of displaying charts.

[R scene of invention]

In display devices, there are hardware restrictions on the amount of information that can be displayed on an image display screen at one time.

For example, in Japanese sword processors, JIs standard A
4 size paper or B4? In order to display an image of text written on a piece of paper, a display device that can display approximately 60 to 80 characters in both the horizontal and vertical directions is required.

If one character is represented by a dot matrix structure of 24 dots horizontally x 24 dots vertically, the image display screen of a commonly used 12-inch or 14-inch CI (T display device can only display about 46 characters horizontally). Therefore, it is not possible to display the amount of information described above.If you try to display the amount of information described above with this display device, one character must be expressed as a dot matrix of approximately 13 dots x 13 dots. Inevitably, the font size becomes too small and the 4 characters that can be expressed
will also decrease. Dot printers for Bartco, which are added to word processors, are still required to print high quality, and high quality printing requires R, i: 2.4 dots x 24 dots matrix thin acid, so display devices If one character is represented by a 13 dot x 13 dot matrix structure, a display device Et and a character pattern generator of type 211 for a printer are required for cine economy. It is also possible to standardize the representation of one character to 24 dots x 24 dots, increase the resolution of the display screen of the display device, or increase the size of the display screen, but this would increase the cost and size of the device. There are disadvantages associated with formalization.

In order to compensate for this drawback, there is a fold-back display function that displays the amount of information for one horizontal line of the information image in multiple lines on the image display screen, and a function that moves the image displayed on the display screen horizontally or vertically. There are display devices that have a scrolling display function. However, in this folded display method, the information arrangement position of the image does not correspond one-to-one on the display screen and on the hard copy, making it inconvenient for viewing and interpreting the diagrams.

For this purpose hard copy and display i1! Many display devices employ a scroll display method in which the information arrangement positions on one screen correspond to each other on a 1:1 basis.

In a display device having a scroll display function, when a display image is scrolled, the amount of information located at the end of the scroll direction naturally disappears from the main display image. Diagrams often have heading items in the upper or left side area, but if you scroll the chart on the display screen, the 7 heading items disappear from the display screen, so each column of the chart must correspond to a heading item. There was a drawback that II could not do.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a display device with a scroll display function that is convenient for viewing information such as charts and tables.

[Summary of the invention]

In order to achieve this objective, the present invention provides a system in which an arbitrary area of a display image, such as a predetermined heading column of a table, is fixedly displayed in a predetermined fixed area, and only other areas can be scrolled and displayed. It is characterized by what it did.

[Embodiments of the invention]

In the following, an embodiment in which the present invention is applied to a Japanese word processor will be described in detail.

FIG. 1 is a block diagram showing the basic configuration of a Japanese word processor. Image information code signals such as characters or symbols input from a human-powered device 1 such as a keyboard or a tablet are sent to a display device 20 and a control section 3 such as a microcomputer. The control section 3 converts the stored image information code signal into an image information dot signal using the character pattern generator 4 and sends it to the display section 5.
s Display the entire information squad on the display screen. The output device 6 outputs a text or the like as a result of editing work performed by operating the input device 1 as a hard copy.

FIG. 2 shows the main parts of the internal structure of the control section 3 in more detail. The artist information code generated by operating the input device 1 is controlled by the overall control section 3a and temporarily stored in the system storage section 3b. On the other hand, the image information code signal to be displayed on the display section 5 is transmitted to the overall control section 3.
The characters are read out from the system storage section 3b in the order to be displayed, converted into image information dot signals by the character bakun generator 4, and sent to the display section 5 by the overall control section 3a.
is controlled by the display control section 3C when reading out the image information code signal to be displayed from the system storage section 3b.

The display control unit 3C is 11.・The display start line number a and the line number of the heading item of the chart inputted from the input device 1 are stored, and the display image is controlled based on these stored values. The display screen is capable of displaying, for example, 10 vertical lines, with table heading items fixedly displayed on the bottom line of the display screen, and charts and tables etc. displayed on the other nine lines. That is, the display control unit 3C displays the contents of the line corresponding to the line number of the heading item on the bottom line of the display screen, and the topmost event is displayed on the other nine lines with the display start line number a.
control to display up to 9 lines that match.

FIG. 3 is a plan view of a keyboard used as the input device 1. It is provided with JIS array keys 11μla for inputting kana, alphanumeric characters and symbols, a numeric key part 1b for inputting numbers, and a non-function key part 1c for instructing various controls. There are scroll control keys IC1 and IC2 in some of the function ICs. The key IC1 is used to instruct the display image to be scrolled upward, and the key 1c2 is used to instruct the display image 1 to be scrolled downward. Further, the key 1c3 is used to indicate the line number of the heading item, and the line number of the heading item is specified by using the key 1c3 and the numeric keys on the numeric keypad portion 1b.

Figure fJ4 is a scroll display execution flowchart 1. The display ftt control unit 3C stores this when the operator instructs to display a heading item using the key 1C3 and the numeric keypad part ib. Then, the content of the line that matches the line number of the heading item is displayed on the Fth line of the screen. Also, what is the display start line number a? 7J period value a(.

(for example, ao=l). When upward scrolling of the display image is instructed by key 1 (+), the display start line number ak (-1-1') 1JD4L is entered.

And the display start line number a of the purity result is the information image range am
,! Judge whether it is within the range sr'L. If it is within the range, display start line number af as the first line for the display area (
For example, all 9 lines are displayed. If the display start line number a goes outside the information image range, the display image disappears from the display screen, so the scrolling function is stopped. −? -1c2 instructs to scroll the display screen 1,
Display start 1te number af: (-i) Add. It is determined whether the display start line number a is larger than the initial display start line number aO, and if it is larger, the display area is displayed with the display start number a as the first line. When a=B o, the display image 1 has returned to the state before scrolling, so further scrolling is stopped.

In this example, the information image is scrolled by one line each time the scroll display is instructed.
Continuous scrolling becomes possible if the repeat function is configured to function when inputs from cl and Ic2 are continuous.

Next, an example of information image display in the above embodiment will be explained with reference to FIGS. 5 to 8. FIG. 5 is a biological diagram of the information image 7 to be displayed, and the display characters/numbers 7a and the corresponding frames 7b are provided for explanatory purposes to clarify each character unit. may be displayed as a display position division frame so as to be distinguishable from the information image 7. In this example, the information image range a,,,, is “
20". FIG. 6 shows a case where the display screen 5a of the display unit 5 has a vertical display capacity of 110 lines, and the information image 7 is displayed on the display screen 5a from the top.

As is clear from the drawing, only the upper half of the information image 7 can be displayed. When attempting to add the results of "Mr. F" to this information image 7, the displayed image must be scrolled upward.

When the entire display image is scrolled to the position where "Mr. F" is displayed as in the past, the display image on the display screen 5a becomes the state shown in FIG. It is not possible to make observations that correspond to the items. In such a case, according to the present invention, by manually setting the line number of the heading item to b=3 and executing the upward scroll function with the repeat function, the heading item can be displayed on the screen as shown in FIG. It remains fixedly displayed on the bottom line of the screen, and you can add the score sheet by scrolling upward in other areas. According to this embodiment, the heading items of charts are always displayed in the fixed area, making input operations easier.

FIG. 9 shows an embodiment in which a display image is divided into a text area and a system area, and heading items are displayed at the top of the system area. The text area is the display area for characters input by the operator of a word processor or the like using the input device 1, and the system area is the display area for displaying characters such as error messages and input modes issued by the control unit 3 and 9. This area displays system messages. In this embodiment, the system area uses line F2 of the display screen and the rest as a text area. In this embodiment, by using the topmost feature of the system area as the heading item fixed display area, the heading items are always displayed fixedly at the bottom row of the text area, making it easy to create diagrams and view. It becomes convenient. Also, when creating a table, it is common to scroll the displayed image upward so that the line to be input is the bottom line of the text area, so it is fixed to display the heading items. Positioning the display area below the bottom line of the text area reduces the operator's eye movements, which is effective in increasing input speed and reducing fatigue.

In the above embodiments, a display device with scroll display in the vertical direction has been described, but the present invention can be similarly applied to nine scroll controls in the horizontal direction.

[Genmei effect]

According to the present invention, when scrolling, an arbitrary area of the displayed image (for example, a heading item of a chart, etc.) is fixedly displayed in a predetermined fixed display area, and only other areas can be scrolled. It is convenient for creation and observation, and the fixed display area is determined, so
It is possible to obtain a display device with a scrolling function that requires less eye movement, increases input speed, and reduces fatigue.

[Brief explanation of drawings]

FIG. 1 is a basic block diagram of a Japanese language processor according to an embodiment of the present invention, and FIG. 2 is a detailed block diagram of the same.
Fig. 3 is a plan view of the human-powered device, Fig. 4 is a flowchart for executing a scroll announcement, Fig. 5 is an overall view of the information image to be displayed, and Figs. 6 to 9 are one image of the image displayed on the display section. It is an explanatory view showing each side of. 1... Input device, 2... Display device, 3...
・8ti control section, 3a... Overall control section, 3b... System control section, 3C... Display control section, 4. A. Character pattern generator, Funeral 8 diagram

Claims (1)

[Claims] 1. In a display device that has a display image scrolling function and can display charts, an arbitrary area of a display image is fixedly displayed in a predetermined specific fixed area of the display screen. A display device characterized by comprising means. 2. A display device according to claim 1, characterized in that a display screen is divided into a text area and a system area, and the predetermined fixed display area is provided in the text area. 3. A display device according to claim 1, characterized in that a display screen is divided into a text area and a system area, and a predetermined fixed display area is provided in the system area.