JP3519787B2 - Display device control method and display device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device such as a display board used for displaying various kinds of information, and in particular, it can flexibly deal with an increase in the amount of information to be displayed in a unit time and can display a large amount of data in a small space. The present invention relates to a display device control method and a display device capable of displaying data.

[0002]

2. Description of the Related Art First, a conventional display device will be described with reference to FIG. FIG. 8 is a block diagram of a configuration of a conventional display device and its peripheral portion. As shown in FIG. 8, the conventional display device receives and accumulates display data transmitted from the host computer 1 in page units, edits the display data according to the display unit 3, and edits the display data in the display unit 3. The display control unit 2 transmits the display data, and the display unit 3 displays the display data on the screen (board) according to the display content.

Next, the function of each part will be specifically described. First, the host computer 1 transmits data to be displayed on the display device to the display device in a format as shown in FIG. FIG. 9 is a format diagram of transmission data transmitted by the host computer 1. The format of the data transmitted from the host computer 1 is, as shown in FIG. 9, that there is a page signal indicating the beginning of a page first, followed by a row signal indicating the beginning of a row and a data signal displayed on one row. The paired row data is repeated for the number of rows on one page to form display data in page units.

The display control unit 2 receives and accumulates the display data in page units transmitted from the host computer 1, edits it according to the display specifications of the display unit 3, and transmits it to the display unit 3. is there.

Further, the display unit 3 receives and accumulates the display data transmitted from the display control unit 2, and performs a cyclic display for switching the display of the normal display data page by page. In addition, as a special case, when the message is displayed on the bottom line, the message on the bottom line is horizontally scrolled. Here, the circulation display is to switch the data display in page units to the next page when a preset specific time (circulation time) has elapsed.

Next, a control method in the conventional display device will be described with reference to FIGS. In the conventional display device control method, the host computer 1 transmits display data in page units in the format shown in FIG. 9 to the display device, and the display control unit 2 receives data transmitted from the host computer 1 at any time. The data is stored once, and the data received earlier is edited in order according to the display specifications of the display unit 3 and transmitted to the display unit 3.

The display unit 3 receives and accumulates the display data transmitted from the display control unit 2 and displays the display data for one page. For the normal display data, the display time is monitored while monitoring the display time. When was reached the preset circulation time, it was switched to the display of the next page. Further, when displaying a message on the bottom line, the bottom line message is horizontally scrolled, and normal display data is displayed on the display line excluding the bottom line. The horizontal scroll display method is based on a general method.

[0008]

However, in the above-described conventional method for controlling a display device, when the number of lines of display data in page units transmitted from the host computer 1 increases, the display elements having the increased number of lines are displayed. Display device (board)
However, there is a problem that it is necessary to increase the number of boards, the labor and cost associated with the addition of the boards are required, and the board area is enlarged to consider the space of the installation place.

The present invention has been made in view of the above-mentioned circumstances, and the display data that cannot be displayed simultaneously can be vertically scrolled line by line to be displayed, so that 1
It can flexibly cope with the increase in the number of display data lines per page,
It is an object of the present invention to provide a display device control method and a display device capable of displaying a large amount of information with a board having a smaller area.

[0010]

The invention according to claim 1 for solving the problems of the above-mentioned conventional example is a host computer.
A plurality of display data for forming Ru page unit from the row data of the display data is multiple rows in the first page transmitted from the data page
A method for controlling a display device that receives, stores, and displays
Oite, when displayed by switching the display data of the plurality of pages in page units each first specific time set in advance
In both cases, when the number of lines displayed on the display device is less than the number of lines of line data in the page, within the first specific time,
It is characterized in that the row data is scroll-displayed in the vertical direction at every preset second specific time. The invention according to claim 2 for solving the problem of the above-mentioned conventional example is the method for controlling a display device according to claim 1, wherein when the row data is scrolled vertically , the page
When reaching the end line, the display is repeated by returning to the first line .

[0011] invention of the prior art according to claim 3, wherein for solving the problems, the Ru consists row data of the display data is multiple rows in the first page transmitted from the host computer
Receive and display multiple pages of display data
Sent from the host computer on the display device
A receiving unit that receives the display data of the plurality of pages;
An accumulation buffer for storing the received display data of a plurality of pages, a scroll timer for counting a scroll time which is a second specific time for scroll-displaying the row data in the vertical direction, the scroll time is set, and the scroll is set. Scroll time monitoring means for monitoring a timer to determine whether the scroll time has been reached,
A circulation timer for counting a is circulation time first specific time Ru switch the page, the circulation time is set, circulation time monitoring means for determining whether the reached the circulation time by monitoring the circulation timer when the row data in the page when it is determined to have reached the scrolling time scrolling time monitoring means is displayed by scrolling one line at a time lengthwise direction, it reaches the last line of the page field
In this case, the scroll display control means for returning to the first line and repeating the display, and the display data of the next page of the page for page switching when the circulation time monitoring means determines that the circulation time has been reached And page data reading means for reading from the accumulation buffer.

[0012]

According to the invention of claim 1, the host computer is
There are multiple lines of display data in one page sent from the data
Multiple pages of display data consisting of
Received and stored, every preset first specific time
Switch the display data of the multiple pages in page units
Since the display device is controlled to display the line data in the page in the vertical direction at preset second specific times within the first specific time,
Display data of multiple pages is displayed as a single page every 1st specific time.
Even if the number of lines of display data on the display device is less than the number of lines of line data in the page, the second line
With the scroll display of the row data in the vertical direction which is performed at every specific time, all the row data in the page can be displayed within the display time of the page. According to the second aspect of the present invention, when the scrolling display the line data in the vertical direction, Bae
When the last line of the page is reached, return to the first line and display
Since the method for controlling the display device according to claim 1 is repeated , the line data in the page is displayed during the display time of the page even if the display line of the display device is less than the number of line data in the page. Below the last line data when scrolling
It is possible to repeatedly display the first row data by displaying it in the row .

According to the third aspect of the invention, the receiving unit is
Display page on page 1 sent from the storage computer
The display data in page units, in which the data consists of multiple lines of line data.
Stores data in a plurality of pages received by the storage buffer, the monitors scrolling timer scroll time monitoring means reaches the scroll time, scrolling display control means scrolls the row data in a page in one line at a time lengthwise direction Display and return to the first line when the last line of the page is reached
When the circulation time monitoring means monitors the circulation timer and the circulation time is reached, the page data reading means uses the display device to read the next display data from the accumulation buffer for page switching. If the scroll time is set so that the line data in the page is displayed all or multiple times during the time, the scroll display control can be performed even if the display line of the display device is less than the number of line data in the page displayed. From last line by means
Repeats the display by returning to the first row and scrolling the row data in the vertical direction .
The first row data can be displayed repeatedly in the lower row .

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. A display device control method according to an embodiment of the present invention displays display data in page units sent from a host computer by vertically scrolling in line units at a preset specific time during page switching. Then
Even a board with a small area can display a lot of information.

The display device of this embodiment has basically the same configuration as the conventional display device, and as shown in FIG. 8, receives and stores the display data transmitted from the host computer 1 in page units. , A display control unit 2 that edits display data according to the display unit 3 and transmits the edited display data to the display unit 3, and receives the edited display data from the display control unit 2 and displays a screen according to the display content. The display unit 3 displays data on a (board). However, in this embodiment, the control method in the display unit 3 is different from the conventional method.

Next, the function of each part will be specifically described.
The host computer 1 transmits the data to be displayed on the display board to the display device page by page in the format shown in FIG. Further, the display control unit 2 is also similar to the conventional one, and receives the display data in page units transmitted from the host computer 1 and stores the display data.
It is edited according to the display specifications of the display unit 3 and transmitted to the display unit 3.

The display unit 3, which is a characteristic part of this embodiment, receives and accumulates the display data transmitted from the display control unit 2 at any time, reads the display data page by page from the accumulated data, and displays the data. It is something to do. In particular, the control method in the display unit 3 is such that, while pages are being switched, display data is displayed while scrolling vertically in line units for normal display data at a preset specific time, and As a special case, when displaying a message on the bottom line, the bottom line message is horizontally scrolled and the remaining lines are used for scroll display, as in the conventional case. Here, the page is switched and displayed as in the conventional case is called a cyclic display, and the data display in page units is switched to the next page for display every predetermined time (circulation time) set in advance.

Next, the schematic structure of the display section 3 which is a characteristic part of the display device of this embodiment will be described with reference to FIG. FIG. 1 is a configuration block diagram of a display unit 3 of a display device according to an embodiment of the present invention.

The display unit 3 of the display device of this embodiment has basically the same configuration as the conventional one, and the receiving unit 10 receives the edited display data transmitted from the display control unit 2.
A storage buffer 11 that stores the display data received by the receiving unit 10, a CG-ROM 12 that stores a character pattern corresponding to a character code in a table format, and a memory area corresponding to a display row are provided and displayed. It is composed of a VRAM 13 that stores a character pattern, a display board 14 that actually displays the character pattern stored in the VRAM 13, and a control unit 20 that performs display control on the display board 14. It is a characteristic part of the embodiment.

Next, the function of each part will be specifically described.
First, the part that has existed conventionally will be described. The accumulation buffer 11 sets the page signal data (page break data) indicating page breaks as one record, and the row-by-row display data as one record for the edited display data transmitted from the display control unit 2. It is a buffer memory that accumulates several records for several minutes, and is read in order from the previously written one.

The CG-ROM 12 is a read-only memory that stores a character pattern corresponding to a character code in a tabular form, and converts the character pattern of the display data transmitted from the display control unit 2 in association with the character pattern. By doing so, the character pattern data to be actually displayed on the display board 14 can be obtained.

The VRAM 13 is called a video RAM,
The CG-ROM 12 is a readable / writable memory provided with a memory area corresponding to the display row of the display board 14.
Is displayed on the display board 14 by writing the character pattern converted by using the above to the address position corresponding to the display line of the VRAM 13.

The display board 14 is a board for actually displaying the display data, and as shown in FIG. 2, the display data is displayed in units of lines. FIG. 2 is an explanatory diagram showing an example of the display board 14 of the display device of this embodiment.
Note that FIG. 2 shows an example of the display board 14 having three display lines.

Next, the receiving unit 10 receives the display data transmitted from the display control unit 2 page by page and stores it in the accumulation buffer 12 at any time, and a page break indicating a page break in the received data. Data is stored as one record, and a plurality of records corresponding to the number of rows are stored, with one line of display data in one page as one record.

The control unit 20, which is a characteristic part of this embodiment, controls the display on the display board in page units,
With respect to the display data for one page composed of a plurality of line data, the display in line units is vertically scrolled at a preset specific time (scrolling time), and further in page units at a preset circulating time. Is a portion for performing display control on the display board 14 by switching the display data of.

Assuming that the circulation time is T and the scroll time is t, the basic relationship between T and t will be described.
T = (m × n) t [m: number of lines in one page, n: integer]
Becomes In other words, if n = 1, the display data of all the lines in one page will be scrolled and displayed once.
= 2, the display data of all the lines in one page will be scroll-displayed twice.

The specific operation of the control unit 20 is to detect page break data from the accumulation buffer 12 to read the display data for one page, and temporarily store the display data. Then, from the line data displayed on the first line of the display board 14 to the bottom line of the display board 14, for example, the line data displayed on the third line in the case of the display board of FIG. 2, from the character data using the CG-ROM 12. Convert to character pattern, VRAM
It is output to 13 and displayed on the display board 14.

On the other hand, the display time is monitored, and when the display time reaches the preset scroll time, the display data is shifted line by line and the display data of the second line to the display data of the fourth line is stored in the CG-ROM 12. It is used to convert the character data into a character pattern, which is output to the VRAM 13 and displayed on the display board 14. Similarly, each time the display time reaches the scroll time, the display is shifted by one line, and when the display data of the last line of one page is reached, the display is returned to the first line and the display is repeated.

On the other hand, the total display time from page switching is monitored, and when the display time reaches the preset circulation time, the display data of the next page is read from the accumulation buffer 11 and similarly scrolls vertically. The display data for one page is displayed on the display board 14.

Next, the internal structure of the control unit 20 of this embodiment will be described with reference to FIG. FIG. 3 is a configuration block diagram of the control unit 20 and its periphery according to the present embodiment. The control unit 20 of the present embodiment reads page data of one page from the accumulation buffer 11 and stores the page data in row units (row data), a circulation time monitoring unit 22 that monitors the circulation time, A scroll time monitoring means 23 for monitoring the scroll time, a scroll display control means 24 for controlling scroll display, a page data area 30 for storing one page of line data, a circulation timer 31 for counting the circulation time, and a scroll. It is composed of a scroll timer 32 for counting time.

A head pointer 33, a display pointer 34, and a board pointer 35 are provided as pointers used for scroll control by the scroll display control means 24.

Further, the above-mentioned respective parts will be specifically described. In the page data reading means 21, the control part 20 turns on the power.
Then, the operation is performed, and the display data for one page is read from the accumulation buffer 11 and stored in the page data area 30. Further, the circulation timer 31 is cleared, the scroll time value is set in the scroll timer 32, and the circulation time monitoring means 22 for monitoring the circulation timer 31 is activated. The timing of reading the display data is when the power is turned on and when the instruction that the circulation time monitoring means 22 determines that the circulation time has been reached is output to the page data reading means 21.

The circulation time monitoring means 22 includes a circulation timer 31.
The time counted by is monitored and it is judged whether the circulation time preset inside has been reached. First,
It is started by the page data reading means 21, and if the time of the circulation timer 31 has not reached the circulation time, the scroll time monitoring means 23 is activated, and if it has reached the circulation time, it is cleared and stored in the page data reading means 21. This is an instruction to read data from the buffer 11. The circulation time monitoring means 22 is also activated by the scroll time monitoring means 23 and the scroll display control means 24, and each time the circulation timer 31 monitors whether or not the circulation time has reached the circulation time.

The scroll time monitoring means 23 monitors the time of the scroll timer 32 and determines whether or not the scroll time preset inside has been reached. Then, it is activated by the circulation time monitoring means 22, and each time, the scroll timer 32 monitors whether or not the scroll time has been reached. When the scroll time is reached, the scroll display control means 24 is activated.

The scroll display control means 24 is activated by the scroll time monitoring means 23, reads the line data indicated by each pointer from the page data area 30, and reads the CG.
-VRAM by converting to a character pattern using ROM12
It is a means to expand to 13. The scroll display control means 24 clears the scroll timer 32. The specific operation of the scroll display control means 24 will be described later.

The head pointer 33 is a pointer that points to the target row data to be displayed on the first row of the display board 14. In addition, the display pointer 34 is
Of the line data displayed in the scroll display control means 2
4 reads from the page data area 30 and CG-RO
It is a pointer that points to row data to be expanded in the VRAM 13 using M12. In addition, the board pointer 35
Is a pointer that points to a display line on which line data is displayed on the display board 14.

The circulation timer 31 and the scroll timer 32 have a mechanism for automatically counting the time, and the circulation timer 31 has the page data reading means 21.
The scroll timer 32 is set by the page data reading means 21 and the scroll time is cleared by the scroll display control means 24.

Next, an outline of the control method of the display device of this embodiment will be described with reference to FIGS. FIG. 4 is an explanatory diagram for explaining the control method of the display device of this embodiment, and FIG.
It is explanatory drawing explaining the outline of the processing method for implement | achieving the control method of the display apparatus of a present Example. The control method of the display device of the present embodiment is, for example, as shown in FIG.
Display board 1 with 6 lines of line data as shown in
When the display line of 4 is 3 lines, the display of the display board 14 is scrolled in the upward (vertical) direction at every preset scroll time, and the first line data is chained with the final line data. It is designed to be displayed in the line below the last line data.

As a special case, when displaying a message on the bottom line, vertical scroll display is performed on the upper two lines as shown in FIG. 4B, and the message on the bottom line is the same as the conventional one. Horizontal scroll display is performed.

Therefore, in order to realize the control method of the present embodiment as described above, as the operation of the scroll display control means 24, as shown in FIG.
As line data for one page, the first line "A", the second line "I", the third line "U", the fourth line "E", the fifth line "O",
If each line data of the 6th line “ka” is stored,
First, as an initial state, the head pointer 33 that points to the row data displayed on the first row of the display board 14 in the page data area 30 is set to "A" on the first row, and the display pointer 34 that points to the row data to be displayed is headed. The same pointer pointer 33 is set, and the board pointer 35 pointing to the display line of the display board 14 in the VRAM 13 is set to the first line. Then, the character data is read from the position on the page data area 30 indicated by the display pointer 34, converted into a character pattern using the CG-ROM 12, and the character pattern is formed at the address position on the VRAM 13 corresponding to the line indicated by the board pointer 35. Write.

Next, while incrementing the display pointer 34 and the board pointer 35, the character data is read from the position on the page data area 30 pointed to by the display pointer 34 to the bottom line of the display board and the character is read using the CG-ROM 12. The process of converting into a pattern and writing the character pattern to the address position on the VRAM 13 corresponding to the line pointed by the board pointer 35 is sequentially performed.

Then, the display time is monitored, and when the display time reaches the scroll time, the head pointer 33 is incremented and shifted by one line, and the same processing as described above is performed. When the bottom row of the row data stored in is reached, the next row data is controlled to point to the row data of the first row, and the row data for one page is cyclically displayed.

As a result, as shown in FIG. 5, "a", "i", and "u" are first displayed on the display board 14, and when the scroll time elapses, "i", "u", and "u". Is displayed, and when the scroll time has elapsed, “O”,
"A" and "A" will be displayed.

Next, the processing flow of the control method for the display device of this embodiment will be specifically described with reference to FIGS. 3, 6, and 7. 6 and 7 are flowcharts showing the flow of processing of the control unit of this embodiment. 6 and 7, the variable i is used as the head pointer 33, the variable m is used as the display pointer 34, and the variable j is used as the board pointer 35. Further, the case where the number of display lines on the display board 14 is three is described as an example.

As shown in FIG. 6, in the processing of the control unit of the display device of the present embodiment, first, as the operation of the page data reading means 21, one page of display data is read from the accumulation buffer 11, and the page data is read line by line. Stored in the data area 30 (100) and cleared the circulation timer 31 (10
2) Further, a scroll time value is set in the scroll timer 32 (104), and "0" is set in the head pointer i (106). Here, the process 104 and the process 106 are
As will be described later, this is an operation for displaying the first line data of the page.

Next, as the operation of the circulation time monitoring means 22, it is judged whether or not the time indicated by the circulation timer 31 has reached the preset circulation time (110), and the time of the circulation timer 31 becomes the circulation time. When it reaches, the process returns to the process 100 to display the next page.

On the other hand, if the time of the circulation timer 31 has not reached the circulation time in the process 110, whether the time indicated by the scroll timer 32 has reached the preset scroll time as the operation of the scroll time monitoring means 23. (120), and if the time of the scroll timer 32 has not reached the scroll time, the process returns to step 110.

On the other hand, in process 120, the scroll timer 32
Has reached the scroll time, the vertical scroll display processing is performed as the operation of the scroll display control means 24 (1
30) and returns to process 110.

Here, in the process 100, after the page data reading means 21 reads the display data for one page and stores it in the page data area 30, the scroll timer 32 is set to the scroll time in the process 104. Since the process of setting the value is performed, the time of the scroll timer 32 in the process 120 ≧ scroll time, and the process proceeds to the process 130 to perform the vertical scroll display process.

However, the vertical scroll display processing is
In process 106, the pointer value i of the head pointer 33 is set to "0".
Since i is set to i + 1, that is, the first row data on the page is the first row of the display board, the second row data is the second row of the display board, and the third row data is the third row data. Will be displayed on the third line of the display board.

As shown in FIG. 7, the contents of the vertical scroll display processing of the processing 130 are as follows.
It is determined whether is pointing to the bottom row of the page data area 30 (200). If i is pointing to the bottom row, 1 is added to i.
Is substituted (i ← 1) (202), and if i is not in the bottom row, i is incremented (i ← i + 1) (204). Here, the process 202 is a process for displaying the display data of the display board again from the first line, and the process 204 is a process for scrolling one display data of the display board in the vertical direction. is there.

Then, i is substituted into the display pointer m ((2
10), 1 is substituted for the board pointer j (212), and the row data of the row pointed by the display pointer m in the page data area 30 is expanded in the VRAM 13 (220). Therefore, V
The line data is expanded in the RAM 13 in units of lines.

Here, the expansion of the process 220 to the VRAM 13 is, specifically, to read the line data of the line indicated by the display pointer m of the page data area 30 and use the CG-ROM 12 for the character data of the read line data. Is converted into a character pattern, and the converted character pattern is output to an address position on the VRAM 13 corresponding to the line pointed by the board pointer j.

Next, the board pointer j is incremented (j ← j + 1) (222), it is judged whether j is larger than the number of lines displayed on the board (224), and if j is larger than the number of lines displayed on the board. Clears the scroll timer 32 (226) and ends the vertical scroll display processing. Here, when j is larger than the number of display rows of the board, all the row data for the display rows of the board are in the VRAM 13.
It means that it was expanded to.

On the other hand, when j is not larger than the number of lines displayed on the board in the process 224, it is judged whether the display pointer m points to the bottom line of the page data area 30 (the last line of the display data for one page) ( 230), and when m indicates the bottom line, 1 is substituted for m (m ← 1) (23
2) If m indicates a position other than the bottom row of the page data area 30, m is incremented (m ← m + 1) (234) and the process 220 is returned to to process the next line.

Here, when j is not larger than the number of display lines on the board, it means that all of the line data for the display lines on the board has not yet been expanded in the VRAM 13, and m is returned in the process 230. If the bottom line of the display data of one page is shown, the process 232 causes the line data next to the line data expanded in the VRAM 13 to display the line data of the first line of the page again. belongs to.

According to the display device and the control method thereof of the present embodiment, the display data for one page is stored as line data on a line-by-line basis, and the line to be displayed is cyclically displayed for each preset scroll time. The number of lines of display data per page is larger than the number of lines on the display board because the display data of the next page is displayed when the preset circulation time is reached. Even when the number of items increases, it is possible to flexibly deal with the increase of the display data without adding display equipment, and it is possible to display a large amount of information with a board having a smaller area.

[0058]

According to the invention described in claim 1, the host computer
The display data in one page sent from the computer is
Display data for each page consisting of multiple rows of data
Received several pages, stored them, and set the preset first time
Cut the display data of the multiple pages for each page
Since the display method is such that the line data in the page is scroll-displayed in the vertical direction within the first specified time, the line data in the page is scrolled in the first specified time. Display data on multiple pages every hour
While displaying switched over di units, be smaller than the number of rows the data in the page display lines of the display device is displayed in the scroll display in the longitudinal direction of rows of data is performed for each second particular time The effect is that all the line data in the page can be displayed within the page display time. Claim 2
According to the described invention, when the last line of the page is reached when scrolling the row data in the vertical direction , the first
The method for controlling the display device according to claim 1, wherein the display is returned to the line and the display is repeated . Therefore, even if the display line of the display device is less than the number of lines of line data in the page displayed, When scrolling the row data in the page
Display the first row data in the row below the last row data
There is an effect that can be repeatedly displayed.

According to the third aspect of the invention, the receiving section is
Display page on page 1 sent from the storage computer
The display data in page units, in which the data consists of multiple lines of line data.
Stores data in a plurality of pages received by the storage buffer, the monitors scrolling timer scroll time monitoring means reaches the scroll time, scrolling display control means scrolls the row data in a page in one line at a time lengthwise direction Display and return to the first line when the last line of the page is reached
When the circulation time monitoring means monitors the circulation timer and the circulation time is reached, the page data reading means uses the display device to read the next display data from the accumulation buffer for page switching. If the scroll time is set so that the line data in the page is displayed all or more than once during the time, the scroll display control is performed even if the display line of the display device is less than the number of line data in the page displayed. From last line by means
It is a scroll display of the vertical row data that returns to the first row and repeats the display. During the page display time, all the row data in the page are displayed in the row below the last row data and the first row data is displayed.
There is an effect that it can be repeatedly displayed as shown .

[Brief description of drawings]

FIG. 1 is a configuration block diagram in a display unit 3 of a display device according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing an example of a display board of the display device of the present embodiment.

FIG. 3 is a configuration block diagram of a control unit 20 and its periphery according to the present embodiment.

FIG. 4 is an explanatory diagram illustrating a method of controlling the display device according to the present embodiment.

FIG. 5 is an explanatory diagram illustrating an outline of a processing method for realizing the control method of the display device of the present embodiment.

FIG. 6 is a flowchart showing a processing flow of a control unit of this embodiment.

FIG. 7 is a flowchart showing a processing flow of a control unit of the present embodiment.

FIG. 8 is a configuration block diagram of a conventional display device and a peripheral portion thereof.

FIG. 9 is a format diagram of transmission data transmitted by the host computer 1.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Host computer, 2 ... Display control part, 3 ... Display part, 10 ... Receiving part, 11 ... Storage buffer, 12
CG-ROM, 13 ... VRAM, 14 ... Display board, 20 ... Control part, 21 ... Page data reading means, 22 ... Circulation time monitoring means, 23 ... Scroll time monitoring means, 24 ... Scroll display control means, 30
… Page data area, 31… Circulation time timer, 3
2 ... Scroll timer, 33 ... Head pointer, 34
… Display pointer, 35… Board pointer

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Yuko Hara, 3-14-20 Higashi-Nakano, Nakano-ku, Tokyo Kokusai Electric Co., Ltd. (56) Reference JP-A-5-297838 (JP, A) JP HEI 1-265286 (JP, A) JP 61-249093 (JP, A) JP 6-118898 (JP, A) JP 5-241758 (JP, A) Actual development 4-20092 (JP , U) (58) Fields surveyed (Int.Cl. ⁷ , DB name) G09G 3/00-5/42 G06F 3/00 G06F 3/14-3/153 G06F 17/21

Claims (3)

(57) [Claims] 1. A page display data in one page sent from the host computer Ru consists multiline row data
This is common when receiving and storing multiple pages of display data
First and displays are switched in units of pages of display data of the plurality of pages in each specific time, the rows of the display lines in said display device in the page in the control method of a display device for displaying, which is set in advance in the A method for controlling a display device, wherein when the number of rows of data is smaller than the number of rows of data, the row data is vertically scrolled and displayed at preset second specific times within the first specific time. 2. When scrolling display of line data in the vertical direction, when the last line of the page is reached, the line is returned to the first line.
The method for controlling a display device according to claim 1, wherein the display is repeated . 3. A page display data in one page sent from the host computer Ru consists multiline row data
Display that receives and displays multiple pages of display data
In the device, a table of the plurality of pages transmitted from the host computer
A receiving unit for receiving the display data, a storage buffer for storing the received display data of a plurality of pages, and a scroll timer for counting a scroll time which is a second specific time for scrolling the row data in the vertical direction. , the scroll time is set, counting the and the scroll timer monitors scrolling time monitoring means for determining whether the reached the scroll time, the circulation time is a first specific time Ru switch pages circulation A timer, the circulation time is set, a circulation time monitoring unit that monitors the circulation timer to determine whether the circulation time has been reached, and the scroll time monitoring unit determines that the scroll time has been reached. If the line data in the page is 1
Line at a time One vertical direction to scroll is displayed on the final page
When the line is reached , the scroll display control means for returning to the first row and repeating the display, and the next page of the page when the circulation time monitoring means determines that the circulation time has been reached And a page data reading means for reading the display data of the page from the storage buffer for page switching.