JPS5820435B2 - display device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a display device, and more specifically, the present invention relates to a display device that is more complicated than conventional display devices in terms of displaying numbers.
However, the present invention relates to a display device that can display images that are easier to use.

An object of the present invention is to provide a display device that can meet the user's more advanced display requirements regarding numerical display.

Specifically, in an area where only numbers can be displayed on the display device, at the same time as the operator finishes inputting numbers, a padding character (for example, ggojj or "rice", etc. is generally used) is automatically added to the area for non-input. The present invention provides a display device that reduces the load on operators, computers, etc.

The padding described in this invention will be explained.

Generally, when inputting data to a computer, a predetermined character is inserted at the beginning or end of the input data to match the number of digits required by the computer, depending on the number of digits input by the operator due to the computer program. , the number of digits may be adjusted and the data sent to the computer.

This operation is called padding.

The characters inserted at this time are called padding characters.

Commonly used padding characters are “0” or “
There is a lot of rice.

Next, in order to realize padding in a conventional display device, a configuration as shown in FIG. 1 is generally adopted.

In FIG. 1, 1 is a display device, which also includes functions for an operator interface such as a keyboard (not shown), and 2 is a control device, which is prepared for controlling the display device. , in general, various types of computers are often used.

A connection device 3 provides means for connecting the display device 1 and the control device 2, and is often a line or a computer channel.

To perform padding in this configuration, the display device 1 notifies the control device 2 through the connection device 3 of the end of input from the operator, and the control device 2 determines the padding position, the number of padding characters, etc. Then, a padding character is given to the display device 1 while controlling the display position, and the display device 1 obtains a padded display screen by displaying the padding character.

However, in this configuration, a control device 2 is required in addition to the display device 1, and the system becomes dependent on the system.

Further, when the configuration as shown in FIG. 1 is not adopted, the operation is executed by the operator key-inputting a padding character along with the input data according to the operator's will each time data is input.

However, this clearly leaves out the so-called man-machine interface.

The present invention aims to eliminate these conventional drawbacks and realize padding using only the display device, thereby reducing the load on computers and operators.

The display device according to the present invention is a display device such as a cathode ray tube C (hereinafter abbreviated as CRT) or a plasma display, in which an area with padding can be set to an arbitrary size at an arbitrary position on a display surface. I will provide a.

In the following explanation, we will use CR, which is currently the mainstream of display devices.
A T character display device will be described as an example.

FIG. 2 shows the configuration of a CRT character display device for realizing the present invention.

In FIG. 2, 4 is a display control unit (hereinafter simply referred to as a control unit), 5 is a refresh memory (hereinafter abbreviated as RFM), and 6 is a first data register 7 for holding data read from RFM5. 8 is a constant generator that generates constants such as padding characters; 9 is a keyboard; 10 is a keyboard register register that holds data input from the keyboard 9; Numeral 11 is a multiplexer for switching the data to be set in the second data register 7, and serves as a multiplexer for each data of the constant generator 8, first data register 6, and keyboard register 10. Numeral 12 is a multiplexer for switching the data to be set in the second data register 7. Numeral 12 is a multiplexer for changing the data set in the second data register 7. The address register 13, which holds the address of the first data register 6, is a decoder that decodes the contents of the first data register 6 and provides necessary signals to the control unit 4ζ.

In addition to these, although not shown in the figure, a function for converting the data of the RFM 5 into a video signal and displaying it on the CRT is required, but this is omitted as it is not the essence of the invention.

Furthermore, various control signals are outputted from the control section 4, but these are omitted from the figure.

The operation of the configuration of FIG. 2 will be described in detail.

Next, a description will be given of a means by which a user of a display device can arbitrarily set an area for padding within a display screen.

Generally, a display screen is divided into regions (sometimes called fields) that are each independently given attributes.

In order to perform padding, which is the object of this invention, it is sufficient to be given, as an attribute of the area, whether or not padding is to be performed in the number display area, and if so, how the padding is to be performed.

That is, in the RFM by conventionally well known means,
An area can be specified at any position on the display screen by writing data that determines the attributes of the area, and the attributes of the area can be used to determine whether or not to perform padding and the conditions when padding is performed.

Generally, the following conditions exist when performing padding.

(b) For manually entered numbers, pad the uninputted high-order digits with some data (tton or "rice" is often used).

(hereinafter referred to as pressure padding).

(b) For input numbers, pad the uninput lower digits with some data (hereinafter referred to as cloth padding).

Here, it is possible to freely select "rough data" according to the user's intention, and sometimes provide it with padding conditions.

FIG. 3 shows examples of padded areas in cases (a) and (b) above.

In Fig. 3, FC is data C indicating the attribute of the area (hereinafter referred to as a field character);
123'' and then padding it On is shown below.

Next, the operation of the embodiment in the configuration shown in FIG. 2 will be explained.

To simplify the explanation, assume that right padding is specified by a field character in a left-justified number display area.

Further, such field character designation is detected by constantly checking the field character designation in order to perform input data processing during normal key input operations.

Therefore, the operation after the padding specification is detected will be explained.

The operator's data input process in areas where padding is required is conventionally performed by a display device.

For example, suppose you key in "123".

Thereafter, when a key input indicating the end of input for that area is made, the control unit 4 starts the padding operation.

At this time, the address counter 12 indicates the position to be displayed for the next key input, that is, the position one position to the right of the display of "3".

First, the contents of RFM5 indicated by the address register 12 are
The data is read into the register 6, and the decoder 13ζ checks whether it is a field character or not.

If it is a field character, end the padding operation for this area.

If it is not a field character, the control unit 4 causes the constant generator 8 to generate a padding character, sets it in the second data register 7 through the multiplexer 11, and writes one padding character to the RFM address indicated by the address register 12. , increments address register 12.

This operation is automatically repeated until a field character is detected.

As a result, a display like the one shown in FIG. 3 can be obtained.

Next, the left padding operation will be explained.

Generally, when left padding is required, input characters are often displayed right-justified.

A means for displaying input characters right-aligned is already known (Japanese Patent Application Laid-open No. 134238/1983).

After the input character is displayed by this known means, when a key input indicating the end of input in that area is made, the control unit 4
starts the padding operation.

In the known means, the address register 12 indicates the right end of the display area when the input is completed.

Therefore, the control section 4 first performs an operation for detecting undisplayed digits.

First, the contents of RFM5 indicated by the address register 12 are
The data is taken out to the data register 6, and the decoder 13 checks whether it is input data or a field character.

At the same time, this operation of decrementing the address counter 12 is performed until something other than input data or a field character is detected.

When a field character is detected, this indicates that the area is already fully displayed with input data, so no padding is performed.

When data other than input data is detected, there is still room for padding, so padding is performed.

That is, the constant generator 8ζ generates a padding character, sets the padding character in the second data register 7 through the multiplexer 11, and writes the padding character to the RFM address indicated by the address counter 12.

At the same time, the address counter 12 is decremented.

Then, the RFM data of the new address is read into the first data register 6, and it is checked whether it is a field character or not.

The padding operation is complete when a field character is detected.

This operation is repeated until a field character is detected.

For example, when the data "123" is input from the keyboard 9, the final display will be as shown in FIG. 3A.

Note that the above explanation assumes that the specified information regarding padding exists in the field character, but if the padding operation can be fixed for the purpose of operation of the display device, for example, by providing a switch on the keyboard, the padding information can be transferred to the field character. It is clear that the result is the same even if

Further, according to the present invention, padding can be realized not only in the numeric display ζ but also in the normal display area.

Furthermore, although the description has been made using a CRT display device, as is clear from the description, the present invention can be applied to plasma or any other device in which display data can generally be identified by the control unit.

As described above, according to the present invention, a padded display can be easily obtained, and it is also effective in reducing the load on the operator, central computer, etc.

[Brief explanation of drawings]

FIG. 1 is a conventional configuration diagram for obtaining a padding display, FIG. 2 is a block diagram showing an embodiment of the present invention, and FIG. 3 is a diagram showing an example of a display. A control device, 3 a connection device, 4 a control unit, 5 a refresh memory, 6 a first data register, 7 a second data register,
8 is a constant generator, 9 is a keyboard, 10 is a keyboard register, 11 is a multiplexer, 12 is an address register, and 13 is a decoder.

Claims (1)

[Claims] 1. In a display device that displays characters, symbols, etc. on a display screen, means for specifying an area with display attributes at any position within the display screen, means for detecting the beginning and end of that area, and a means for generating a predetermined character; and means for instructing the end of character input into the area; When the end is instructed, depending on the attribute of the area, an uninput position from the position indicating the beginning of the area to the input data position, or from the position next to the rightmost position of the input data position to the position indicating the end of the area. A display device characterized in that it is configured to automatically insert and display a character generated by the above-described predetermined character generating means into a non-input position.