JPS61255390A - Display control system for turning over page - 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] [Summary] When a display device displays two pages of display information in parallel, it has information that specifies the display range of each display information, and sequentially specifies the display range specification information. By updating to , a natural page-turning display can be 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.

2. Description of the Related Art It is widely practiced to store a document consisting of a plurality of pages in an information processing system equipped with a display device, and to display each page sequentially on a display screen.

In such a case, it is desirable that the updating of pages on the display screen be as similar as possible to the state of turning over the pages of materials written on 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 page by page.

Initially, when an instruction to display the first page depicting the characters rAJ as shown in FIG. The display control circuit 3 transmits the display information p1 read from the memory 1 to
After storing display information for one page in a frame memory 4 having a capacity to store display information, the display information is sequentially transmitted to a display 6 via a parallel-to-serial conversion circuit 5, and is also transmitted to a display 6 in a barnofa memory 7.
The same information is stored in , 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 being displayed. The display control circuit 3 once 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 reads linear graphic information from the memory 1 indicating a state in which a part of the page is turned over, as shown in FIG. 5 (tc), and transmits it to the display control circuit 3. The display control circuit 3 displays a figure as shown in FIG. 5(C) on the display 6 based on the transmitted linear figure information. Subsequently, the processor 2 reads linear graphic information from the memory 1 indicating a state in which the page is approximately half turned over, as shown in FIG. 5(d), and transmits it to the display control circuit 3.
It is displayed on the display 6.

Finally, the processor 2 inputs the letter r as shown in FIG. 5 te+.
Display information p2 corresponding to the second page depicting XJ is read from the memory 1 and transmitted 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 it to the display 6 via the parallel-to-serial conversion circuit 5. As a result of the above, the second page as shown in FIG. 5 is displayed on the display 6.

[Problem that the invention seeks to solve]

As is clear from the above description, in a conventional display device, when updating the screen on the display 6 to the next page, after first erasing the screen of the previous page, and then displaying a figure indicating page turning, Since the next page screen was displayed on the display 7, there was a dislike for the lack of naturalness.

[Means for solving problems]

The present invention solves the above problems by taking the following measures.

FIG. 1 is a block diagram of the principle of the present invention.

In FIG. 1, 1 is a memory that stores a plurality of page information for image display, 2 is a control unit (processor) that selects the page information and displays the image, 3 is a display control circuit, and 40 is a control unit (processor) that selects the page information and displays the image. first image information output means for outputting display information of the first page (for example, previous page information), 8
0 is a second image information output means that outputs the display information of the second page (for example, next page information), and 90 is a display range for outputting the first page information and the second page information on the same screen output. and a selection output means for selectively outputting image information by the mask information output means, for example, consisting of gates 10, 11, 12, 13, etc.

Under the control of processor 2, the first page information and the second
and the page information of the first image information output means 40, respectively.
The mask information sent to and held by the second image information output means 80 and stored in the mask information output means 90 allows each specified range of the first page information and the second page information to be An image is displayed on the display 6.

[Effect]

That is, according to the present invention, from a state where only the first page information, for example, the previous page, is displayed on the display 6,
According to changes in the output contents 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 information is changed to the second page, for example, the next page, according to the mask information, and finally all of the information is output. The process moves to the output content from the second image information output means, that is, the information display of the next page, and natural page turning becomes possible.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 is a diagram showing the configuration of a display device according to an embodiment of the present invention, and FIG. 3 is a diagram illustrating page updating in FIG. 2. Note that the same reference numerals indicate the same objects throughout the figures.

In FIG. 2, in addition to the first frame memory 4 that stores the display information of the previous page, there is also a second frame memory 8 that stores the display information of the next page, and the display range of the stored contents of the frame memory 4. A mask frame memory 9 stores information (hereinafter referred to as mask information m) that specifies the display range of the storage contents of the frame memory 8; An inversion circuit 10 and a gate 11 serve as means for selecting and transmitting the stored contents to the display 6.
and 12 are provided. The processor 2 updates the storage contents of the mask frame memory 9 so as to sequentially change the read range of the storage contents of the frame memories 4 and 8.

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

First, draw the first letter rAJ as shown in Figure 3(a).
When an instruction to display a page is input, processor 2 reads display information pl corresponding to the first page from memory 1 and transmits it to display control circuit 3. The display control circuit 3 stores the display information p1 read from the memory 1 into the frame memory 4. The display control circuit 3 also controls the storage contents (display information pi) of the frame memory 4.
are sequentially read out and transmitted to the gate 11 via the parallel-to-serial conversion circuit 5, and at the same time, the stored contents of the frame memory 8 are sequentially read out and transmitted to the gate 12 via the parallel-to-serial conversion circuit 14,
Furthermore, the memory contents of the mask frame memory 9 (mask information m
a) is also sequentially read out and transmitted to the gate 11 via the parallel-to-serial conversion circuit 15 and to the gate 12 via the inversion circuit 10. At this stage, since the mask information ma set to logical value 1 is read out from the mask frame memory 9 over the entire screen, the gate 11 is always set in a conductive state and the gate 12 is set in a cutoff state. As a result, the stored contents of the frame memory 4 are transmitted to the display 6 over the entire screen,
As shown in FIG. 3(a), only the first 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 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 stores the display information p2 read from the memory 1 into the frame memory 8. As described above, the display control circuit 3 sequentially reads out the stored contents of the frame memos U4 and 8 in parallel, and outputs them to the gate 11 via the parallel-to-serial conversion circuits 5 and 14, respectively.
However, unless the stored contents of the mask frame memory 9 which are simultaneously read out are updated, the gate 11 is still set to the conductive state and the gate 12 is set to the cut-off state. As a result, the stored contents of the frame memory 4 (display information pi) are transmitted to the display 6 over the entire screen,
Since the stored contents of the frame memory 8 (display information p2) are not transmitted, only the first page is subsequently displayed on the display 6 as shown in FIG. 3 (al).

Next, the processor 2 reads out straight line graphic information from the memory 1 in which a part of the page is set to the logical value O1 and others to the logical value 1, as shown in FIG. 3 (bl), and transmits it to the display control circuit 3. The result display control circuit 3 stores mask information mb in the mask frame memory 9, as shown in FIG. 3(b), in which a part of the page is set to a logical value of 0 and the other part is set to a logical value of 1.

In this state, the display control circuit 3 performs the following as described above.
The stored contents of frame memories 4 and 8 are sequentially read out in parallel and transmitted to gates 11 and 12 via parallel-to-serial conversion circuits 5 and 14, respectively, and at the same time, the stored contents of mask frame memory 9 are sequentially read out and transmitted to gates 11 and 12 through parallel-to-serial conversion circuits 5 and 14, respectively. 15 to the gate 11, and the inverting circuit 10 to the gate 12.
to communicate. When a 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 logic value 0 is read, the gate 11 is set to the cut-off state. , the gate 12 becomes conductive. As a result, in the range where the mask information mb is set to logical value 1, the storage contents of the frame memory 4 (display information pl) are transmitted to the display 6, and the storage contents of the frame memory 8 (display information p2) are not transmitted. Therefore, the first page is displayed on the display 6, but in the range where the mask information mb is set to the logical value O, the storage contents of the frame memory 8 (display information p2) are transmitted to the display 6, Since the stored contents of the frame memory 4 (display information pi) are not transmitted, the second page is displayed on the display 6.

As shown in FIG. 3(b), the screen displayed on the display 6 as described above partially displays the first page and the second page corresponding to the mask information 91mb.

Further, the processor 2 performs the processing in FIG. 3 (C1, and further in FIG. 3(d)
As shown in , the range of logical 0 is about half, then about 2/3
3 (C1, further 3
As shown in Figure (d), the range of logical value 0 is about half, then about 2/3 of the mask information mc, which gradually increases, followed by md.
to be stored.

In this state, the display control circuit 3 performs the following as described above.
The stored contents of the frame memories 4 and 8 are sequentially read in parallel and transmitted to the gates 11 and 12 via the parallel-to-serial conversion circuits 5 and 14, respectively, and the stored contents of the mask frame memory 9 are sequentially read out in parallel, Gate 11 via conversion circuit 15 and Gate 1 via inversion circuit 10
2. As a result, the storage contents of the frame memory 4 (display information pi) are transmitted to the display 6 within the range where the mask information mc and further md are set to logical value 1, and the first page is displayed, and the mask information me, Further, within the range where md is set to the logical value O, the stored contents of the frame memory 8 (display information p2) are transmitted and the second page is displayed.

As a result of the above, the screen displayed on the display 6 is the third
As shown in Figure (C1, and also Figure 3 (dl), mask information 1
The display range of the first page gradually decreases and the display range of the second page gradually increases corresponding to 1mc and md.

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

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

As is clear from the above description, according to this embodiment, when an 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. and then write the second
After storing the page display information p2, the mask information stored in the mask frame memory 9 is changed from a state where the entire page has a logical value of 1 (ma) to a state where the range of logical values O is gradually expanded (mb to md). By changing the state of the entire page to logical value O (me), the first
As if turning over a page of paper and gradually revealing the second page,
This will naturally move to the second page.

Note that FIGS. 1 to 3 are only one embodiment of the present invention, and the process of changing the mask information m is not limited to what is shown in the figures (although many other modifications may be considered). However, the effect of the present invention remains the same in either case.Also, the configuration of the display device is not limited to that shown in the drawings, and many other modifications may be considered; However, the effects of the present invention remain the same.Furthermore, it goes without saying that the contents of the front and rear pages are not limited to what is shown in the figures.

〔Effect of the invention〕

As described above, according to the present invention, in the display device, the state in which only the previous page is displayed on the display is sequentially changed to the next page, and finally only the next page is displayed in a natural manner. Page turning becomes possible.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of the principle of the present invention, FIG. 2 is a diagram showing the 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. 4 is a conventional diagram. FIG. 5 is a diagram illustrating the configuration of a certain 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, 5.1
4 and 15 are parallel-serial conversion circuits, 6 is a display, 9
10 is a mask frame memory, 10 is an inversion circuit, 11 and 12 are gates, 4° is a first image information output means, 80 is a second image information output means, 90 is a mask information output means,
100 is selection output means, ma to me are mask information, p
Second agony

Claims (1)

[Scope of Claims] A display device equipped with a display control circuit capable of drawing straight lines and the like at high speed, comprising: a first image information output means (40) that outputs display information of a first page; and a second page. a second image information output means (80) for outputting display information; and a mask for outputting information specifying a display range of the display information of the first page and a display range of the display information of the second page. information output means (90); and selection output means (90) for selecting output information from the first image information output means and the second image information output means based on the output contents of the mask information output means and transmitting the selected information to the display. 100), and the page turning display control method is characterized in that the display information of the first page and the display information of the second page are updated and displayed so as to change sequentially.