JPH0756587B2 - Negative turning display control method - Google Patents

Description

DETAILED DESCRIPTION [Overview] In a display device, when the display information of two pages is displayed in parallel, the display device has information for designating a display range of each display information, and the designation information of the display range is sequentially provided. By updating to, a natural page turning display is realized.

[Industrial application field]

The present invention relates to a page turning display control method that enables natural page turning display in a display device.

It is widely practiced to store a document having a plurality of pages in an information processing system including a display device and sequentially display each page on a display screen.

In such a case, it is desirable that the page update on the display screen be as close as possible to the page turning of the page of the material written on the paper.

[Conventional technology]

FIG. 4 is a diagram illustrating the configuration of a conventional display device, and FIG. 5 is a diagram illustrating a conventional page update.

In FIG. 4, display information consisting of a plurality of pages is stored in the memory 1 in page units.

When an instruction to display the first page in which the character "A" is initially drawn as shown in FIG. 5 (a) is input, the processor 2 reads the display information p1 corresponding to the first page from the memory 1,
It is transmitted to the display control circuit 3. The display control circuit 3 stores the display information p1 read from the memory 1 in a frame memory 4 having a capacity for storing one page of display information, and then sequentially transmits it to the display 6 via the parallel-serial conversion circuit 5. At the same time, the same information is stored in the buffer memory 7, and a predetermined image is displayed on the display 6.

Next, when an instruction to update the screen of the display 6 to the second page is input, the processor 2 instructs the display control circuit 3 to erase the first page currently displayed. The display control circuit 3 temporarily erases the stored contents (display information p1) of the frame memory 4, and erases the first page being displayed on the display 6 as shown in FIG. 5 (b).

Next, the processor 2, as shown in FIG. 5 (c), reads straight line graphic information showing a state in which a part of the page is turned from the memory 1 and transmits it to the display control circuit 3. The display control circuit 3 displays a graphic as shown in FIG. 5C on the display 6 based on the transmitted linear graphic information. Subsequently, the processor 2 reads out linear figure information indicating a state in which the page is turned about half as shown in FIG. 5D from the memory 1, transmits it to the display control circuit 3, and displays it on the display 6.

Finally, the processor 2 reads the display information p2 corresponding to the second page in which the character "X" is drawn as shown in FIG. 5 (e) from the memory 1 and transmits it to the display control circuit 3.
The display control circuit 3 stores the display information p2 read from the memory 1 in the frame memory 4, and then sequentially transmits the display information p2 to the display 6 via the parallel-serial conversion circuit 5. As described above, the second page as shown in FIG. 5 (e) is displayed on the display 6.

[Problems to be solved by the invention]

As is apparent from the above description, in the conventional display device, when the screen on the display 6 is updated to the next page, after the screen of the previous page is once erased, after displaying the figure showing the page turning, Since the screen of the next page was displayed on the display 7, there was a dislike that it lacked in naturalness.

[Means for solving problems]

In the display device including the display control circuit capable of drawing a straight line or the like at high speed according to the present invention, the first image information output means (40) for outputting the display information of the first page, and the second Second image information output means (80) for outputting the display information of the page, and mask information for designating the display range of the display information of the first page and the display range of the display information of the second page. A mask information output means (90) for selecting the output information of the first image information output means and the second image information output means according to the output content of the mask information output means and transmitting the selected output information to the display. Means (10
0) is provided, and when the page turning display control of the display information of each of the first image information output means (40) and the second image information output means (80) is performed, the mask information output is controlled by the display control circuit. Means (90) includes mask information for indicating the sequential display of all the output of the display information of the first image information output means and the block display of all the output of the display information of the second image information output means; In the first image information output means, the output of a part of the display information on the side corresponding to the page turning operation is blocked in the first image information output means, and the other parts are sequentially displayed. Mask information indicating that the display of the output of the display information portion of the second image information output unit corresponding to the display information portion of which the display is blocked and the blocking of the output of the other display information are blocked, and further the first image information output. Display in the means Mask information for sequentially enlarging the range of the display information to be stopped in the direction corresponding to the page turning operation, and outputting the display information corresponding to the expanded range, which is the output of the second image information output unit, and then the mask information. Blocking the display of all the output of the display information of the first image information output means and mask information indicating the display of all the output of the display information of the second image information output means are sequentially given to the selective output means, respectively. The selection output means is solved by a page turning display control method characterized in that the outputs from the first and second image information output means are displayed on a display based on the mask information.

[Action]

That is, according to the present invention, from the state where only the first page information, for example, the previous page is displayed on the display 6,
According to the change of the output content of the mask information output means 90, the information from the first and second image information output means is sequentially changed and output, and the second page, for example, the next page is replaced according to the mask information, and finally, all of them are replaced. The output content from the second image information output means, that is, the information display of the next page is displayed, and natural page turning can be realized.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. FIG. 2 is a diagram showing a configuration of a display device according to one embodiment of the present invention, and FIG. 3 is a diagram illustrating a page update in FIG. The same reference numerals denote the same objects throughout the drawings.

In FIG. 2, in addition to the first frame memory 4 for storing the display information of the previous page, the second frame memory 8 for storing the display information of the next page, and the display range of the stored contents of the frame memory 4 are shown. A mask frame memory 9 that stores information (hereinafter referred to as mask information m) that specifies the display range of the stored contents of the frame memory 8, and the stored contents of the frame memory 4 and the frame memory 8 according to the stored contents of the mask frame memory 9. An inverting circuit 10 and gates 11 and 12 are provided as means for selecting the stored contents and transmitting them to the display 6. The processor 2 updates the stored contents of the mask frame memory 9 so as to sequentially change the read range of the stored contents of the frame memories 4 and 8.

In FIG. 2 and FIG. 3, the processor 2 is initially 1
The display control circuit 3 is instructed to store the mask information ma in which all pages are set to the logical value 1 in the mask frame memory 9. As a result, the display control circuit 3
The mask information ma as shown in FIG. 3A is stored in the mask frame memory 9.

First, the first drawing of the letter “A” as shown in FIG.
When the instruction to display the page is input, the processor 2 reads the display information p1 corresponding to the first page from the memory 1 and transmits it to the display control circuit 3. The display control circuit 3 stores the display information p1 read from the memory 1 in the frame memory 4. Further, the display control circuit 3 sequentially reads the stored content (display information p1) of the frame memory 4 and transmits it to the gate 11 via the parallel-serial conversion circuit 5, and at the same time sequentially reads the stored content of the frame memory 8,
The data is transmitted to the gate 12 via the parallel-serial conversion circuit 14, and the storage content (mask information ma) of the mask frame memory 9 is also sequentially read out, and the gate 11 is supplied via the parallel-serial conversion circuit 15 and the gate is supplied via the inverting circuit 10. Communicate to 12. At this stage, the mask information ma set to the logical value 1 is read from the mask frame memory 9 over the entire screen, so that the gate 11 is set to the conductive state and the gate 12 is set to the cut-off state. As a result, the display 6 has a frame memory 4 over the entire screen.
Of the first memory is transmitted, and as shown in FIG.
Only the page is displayed on the display 6.

Next, when an instruction to update the screen of the display 6 to the second page is input, the processor 2 reads the display information p2 corresponding to the second page from the memory 1 and transmits it to the display control circuit 3. The display control circuit 3 includes a memory 1
The display information p2 read from is stored in the frame memory 8. As described above, the display control circuit 3 sequentially reads the stored contents of the frame memories 4 and 8 in parallel and transmits them to the gates 11 and 12 via the parallel-serial conversion circuits 5 and 14, respectively, but the mask frames are read simultaneously. Memory 9
As long as the stored contents of (1) are not updated, the gate 11 is still set to the conductive state and the gate 12 is set to the cutoff state. As a result, the storage content (display information p1) of the frame memory 4 is transmitted to the display 6 over the entire screen, and the storage content (display information p2) of the frame memory 8 is not transmitted, so that FIG. ), Only the first page is displayed on the display 6.

Next, as shown in FIG. 3B, the processor 2 reads out straight line graphic information in which a part of the page is set to the logical value 0 and the other is set to the logical value 1 from the memory 1 and transmits it to the display control circuit 3. . As a result, the display control circuit 3 stores in the mask frame memory 9 mask information mb in which a part of the page is set to the logical value 0 and the other is set to the logical value 1 as shown in FIG.

In this state, the display control circuit 3 operates as described above.
The stored contents of the frame memories 4 and 8 are sequentially read out in parallel, and the gate 11 is supplied via parallel-serial conversion circuits 5 and 14, respectively.
And 12 at the same time, the contents stored in the mask frame memory 9 are sequentially read out at the same time, and the gate is passed through the parallel-serial conversion circuit 15.
11, and also to the gate 12 via the inverting circuit 10. When the logical value 1 is read from the mask frame memory 9, the gate 11 is set to the conductive state and the gate 12 is set to the cut-off state as described above, but when the logical value 0 is read, the gate is reversed.
11 is cut off and gate 12 is turned on. As a result, in the range where the mask information mb is set to the logical value 1, the storage content of the frame memory 4 (display information p1) is transmitted to the display 6, and the storage content of the frame memory 8 (display information p2) is transmitted. Therefore, the first page is display 6
Although displayed above, in the range where the mask information mb is set to the logical value 0, the display 6 is transmitted with the storage content of the frame memory 8 (display information p2) and the storage content of the frame memory 4 (display information). Since p1) is not transmitted, the second page is displayed on the display 6. As described above, the screen displayed on the display 6 partially displays the first page and the second page corresponding to the mask information mb, as shown in FIG. 3 (b).

Further, the processor 2 is shown in FIG. 3 (c) and further in FIG. 3 (d).
As shown in (1), the linear figure information in which the range of the logical value 0 is about half and then about 2/3 is read out from the memory 1 and transmitted to the display control circuit 3 to be stored in the mask frame memory 9. As shown in FIG. 3 (c) and FIG. 3 (d), the range of logical value 0 is about half, and then about
The mask information mc that gradually increases to 2/3 and then md is stored.

In this state, the display control circuit 3 operates as described above.
The stored contents of the frame memories 4 and 8 are sequentially read out in parallel, and the gate 11 is supplied via parallel-serial conversion circuits 5 and 14, respectively.
And 12 in parallel, the contents stored in the mask frame memory 9 are sequentially read in parallel, and are transmitted to the gate 11 via the parallel-serial conversion circuit 15 and to the gate 12 via the inverting circuit 10.
As a result, the mask information mc and further md are displayed on the display 6.
In the range where is set to the logical value 1
Stored content (display information p1) is transmitted, the first page is displayed, and the stored content of the frame memory 8 (display information
p2) is transmitted and the second page is displayed. As described above, the screen displayed on the display 6 is as shown in FIG.
Further, as shown in FIG. 3D, mask information mc and md
Corresponding to, the display range of the first page gradually decreases,
The display range of the page gradually increases.

Finally, the processor 2 stores the straight line graphic information in which all pages are set to the logical value 0 as shown in FIG.
And transmits to the display control circuit 3 to store the mask information me in which all pages are set to the logical value 0 in the mask frame memory 9 as shown in FIG. 2 (e).

In this state, the display control circuit 3 operates as described above.
The stored contents of the frame memories 4 and 8 are sequentially read out in parallel, and the gate 11 is supplied via parallel-serial conversion circuits 5 and 14, respectively.
And 12 at the same time, the contents stored in the mask frame memory 9 are sequentially read out at the same time, and the gate is passed through the parallel-serial conversion circuit 15.
11, and also to the gate 12 via the inverting circuit 10. This time, since the mask information me whose logical value is set to 0 is read from the mask frame memory 9 over the entire screen, the gate 11 is set to the cutoff state and the gate 12 is set to the conductive state, and the display 6 is displayed. The stored content (display information p2) of the frame memory 8 is transmitted over the entire screen, and only the second page is displayed on the display 6 as shown in FIG. 3 (e).
As described above, the screen displayed on the display 6 is completely updated from the first page to the second page.

As is apparent from the above description, according to the present embodiment, when the instruction to update the first page displayed on the display 6 to the second page is input, the processor 2 controls the display control circuit 3. Second in the frame memory 8
After storing the page display information p2, the mask information stored in the mask frame memory 9 is set to a logical value of 1 for the entire page.
The state of the first page of paper is changed by changing the state (ma) from the state (ma) to the state where the range of logical value 0 is gradually expanded (mb to md) and finally changing the state of the entire page to the state of logical value 0 (me). So that the second page appears gradually,
It will be moved to the page.

It is to be noted that FIGS. 1 to 3 are merely embodiments of the present invention, and the process of changing the mask information m is not limited to that shown in the figure, and many other modifications may be considered. However, the effect of the present invention does not change in any case. Further, the configuration of the display device is not limited to that shown in the figure, and many other modifications may be considered, but in any case, the effect of the present invention does not change. Further, it goes without saying that the description contents on the previous page and the subsequent page are not limited to those shown in the drawings.

〔The invention's effect〕

As described above, according to the present invention, in the display device, from the state in which only the previous page is displayed on the display, the next page is sequentially replaced, and finally only the next page is displayed. Page turning can be realized.

[Brief description of drawings]

FIG. 1 is a block diagram of the principle of the present invention, FIG. 2 is a diagram showing a configuration of a display device according to an embodiment of the present invention, FIG. 3 is a diagram illustrating page updating in FIG. 2, and FIG. FIG. 5 is a diagram illustrating a configuration of a display device, and FIG. 5 is a diagram illustrating a conventional page update. In the figure, 1 is a memory, 2 is a processor, 3 is a display control circuit, 4 and 8 are frame memories, 5, 14
And 15 are parallel-serial conversion circuits, 6 is a display, 9 is a mask frame memory, 10 is an inverting circuit, 11 and 12 are gates, 40 is a first image information output means, 80 is a second image information output means, 90 Indicates mask information output means, 100 indicates selection output means, ma to me indicate mask information, and p1 and p2 indicate display information.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akihiko Obata 1015 Kamiodanaka, Nakahara-ku, Kawasaki-shi, Kanagawa Fujitsu Limited (56) References JP-A-58-195883 (JP, A) JP-A-56-66894 (JP, A) JP-A-59-173863 (JP, A)

Claims (1)

[Claims] 1. A display device comprising a display control circuit capable of drawing a straight line or the like at high speed, wherein a first image information output means (40) for outputting display information of the first page and a second page of the second page. Second image information output means (80) for outputting display information, and a mask for outputting mask information for designating a display range of the display information of the first page and a display range of the display information of the second page. An information output means (90) and a selection output means for selecting output information of the first image information output means and the second image information output means according to the output content of the mask information output means and transmitting it to a display ( Ten
0) is provided, and when the page turning display control of the display information of each of the first image information output means (40) and the second image information output means (80) is performed, the mask information output is controlled by the display control circuit. Means (90) includes mask information for indicating the sequential display of all the output of the display information of the first image information output means and the block display of all the output of the display information of the second image information output means; In the first image information output means, the output of a part of the display information on the side corresponding to the page turning operation is blocked in the first image information output means, and the other parts are sequentially displayed. Mask information indicating that the display of the output of the display information portion of the second image information output unit corresponding to the display information portion of which the display is blocked and the blocking of the output of the other display information are blocked, and further the first image information output. Display in the means Mask information for sequentially enlarging the range of the display information to be stopped in the direction corresponding to the page turning operation, and outputting the display information corresponding to the expanded range, which is the output of the second image information output unit, and then the mask information. Blocking the display of all the output of the display information of the first image information output means and mask information indicating the display of all the output of the display information of the second image information output means are sequentially given to the selective output means, respectively. A page-turning display control method, wherein the selective output means displays the outputs from the first and second image information output means on a display based on the mask information.