JP2000047787A - Display device and storage medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To actualize a display device which an sequencingly display screens as a display device having a display part which can display plural screens one over the other in one display face. SOLUTION: When a new window addition button provided to an electronic blackboard is pressed, the reference coordinates of a new window are set to (0, 0) (S62) and the display order N and the number P of pages are increased each by one (S64), and a new window addition flag is set (S66) and a return to the main routine is made. Consequently, the display order is renewed each time a new window is added, so the original display order can be known even when the display order is changed during editing operation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a display device having a display unit capable of displaying a plurality of screens superimposed on one surface and a storage medium storing a computer program for controlling the display device.

[0002]

2. Description of the Related Art Conventionally, in a display device in which a computer and a display are connected, as an interface environment, instead of a command input method of starting software by inputting characters, a command device using a pointing device such as a mouse is used. GUI (G) that activates software by selecting a pictogram (icon)
A visual interface environment called "graphical User Interface" has appeared.
As one type of the GUI, what is called Windows (registered trademark of Microsoft Corporation) is known. In this Windows, a plurality of windows can be opened on one screen on a display, and a window selected by a mouse or the like can be opened. It is set to be active.

[0003]

However, the above-mentioned Wind
ows has a problem in that when a plurality of windows are opened on one screen, it is not possible to know the opening order of each window. In particular, when a plurality of windows are displayed in a superimposed manner, when a predetermined window is selected with a mouse or the like, the selected window is displayed at the top, and the window previously displayed at the top is the second from the top. , The order in which the windows are displayed changes each time the selection of the window is repeated, making it difficult to grasp the order in which the windows are opened.

Accordingly, the present invention relates to a display device having a display unit capable of displaying a plurality of screens superimposed on one display surface, wherein the display devices can be ranked in order, and the display device. It is an object of the present invention to realize a storage medium in which a computer program for controlling the computer is stored.

[0005]

According to the present invention, there is provided a display apparatus having a display unit capable of displaying a plurality of screens on a single display surface. The technical means is that the screen is provided with a ranking means for ranking.

According to a second aspect of the present invention, there is provided the display device according to the first aspect, wherein the display device further includes a rank notifying unit for notifying the rank of the screen.

According to a third aspect of the present invention, in the display device according to the second aspect, the order notifying means includes a first screen selecting means for selecting the screen, and the first screen selecting means selects the screen. It employs a technical means that is configured to notify the order of the selected screen.

According to a fourth aspect of the present invention, in the display device according to the second or third aspect, a display order changing means for changing a display order of the screens displayed by the screen display means is provided. Adopt technical means.

According to a fifth aspect of the present invention, in the display device according to the fourth aspect, a screen whose display order has been changed by the display order changing means is displayed in accordance with the order given by the ordering means. Technical means that a display order returning means for returning to the order is provided is employed.

According to a sixth aspect of the present invention, in the display device according to the fourth or fifth aspect, the display order changing means includes a second screen selecting means for selecting the screen, and Technical means that the screen selected by the screen selecting means is displayed at the top.

According to a seventh aspect of the present invention, in the display device according to any one of the first to sixth aspects,
The display unit stores a writing surface writable by the writing unit, a data conversion unit that detects a trajectory written on the writing surface and converts the trajectory into digital data, and a trajectory digitized by the data conversion unit. Technical means is adopted in which a trajectory storage means and a display surface for displaying at least one of the trajectory stored in the trajectory storage means and the trajectory written on the writing surface are provided.

According to the present invention, in a storage medium storing a computer program for controlling a display device having a display unit capable of displaying a plurality of screens superimposed on one display surface, The technical means that the ranking program for ranking is stored is adopted.

According to a ninth aspect of the present invention, in the storage medium according to the eighth aspect, a technical means is employed in which a rank notification program for notifying the rank of the screen is stored.

According to a tenth aspect of the present invention, in the storage medium according to the ninth aspect, the display device includes first screen selection means for selecting the screen, and the order notification program is The technical means is configured to notify the order of the screen selected by the first screen selecting means.

According to an eleventh aspect of the present invention, in the storage medium according to the ninth or tenth aspect, a display order changing program for changing a display order of a screen displayed by the screen display program is stored. Adopt technical means.

According to the twelfth aspect, in the eleventh aspect,
The storage medium according to claim 1, further comprising a display order return program for returning the screen, the display order of which has been changed by the display order change program, to a display order corresponding to the order ranked by the ranking program. Adopt means.

According to the thirteenth aspect, in the eleventh aspect,
13. The storage medium according to claim 12, wherein the display device includes a second screen selection unit that selects the screen, and the display order change program is selected by the second screen selection unit. The technical means that the displayed screen is displayed at the top level is adopted.

According to a fourteenth aspect of the present invention, in the display device according to any one of the eighth to thirteenth aspects, the display unit includes a writing surface writable by writing means, and a writing surface. Data converting means for detecting the locus written on the locus and converting it into digital data, locus storing means for storing the locus digitized by the data converting means, and the locus stored in the locus storing means and the writing surface. And a display surface for displaying at least one of the written trajectories.

[0019]

According to the invention as set forth in claims 1 to 14,
The ranking means ranks the screens displayed on the display unit. Therefore, it is possible to know the order of the displayed screen.

In particular, according to the second aspect of the present invention, since the order notifying means for notifying the order of the screen is provided, the order of the screen can be known. For example, as described in an embodiment of the invention described later, the number of pages on the screen can be known by displaying the number of ranked pages on the screen or notifying by voice.

According to the third aspect of the present invention, the order notifying means includes first screen selecting means for selecting a screen, and notifies the order of the screen selected by the first screen selecting means. With such a configuration, by selecting the screen for which the order is desired by the first screen selecting means, the order of the screen can be known. For example, as described in an embodiment of the invention described below, by touching a predetermined screen with a pen tip and pressing a page number display button as first screen selection means provided on the pen, The number of pages on the screen can be displayed.

Further, according to the invention described in claim 4, the display order changing means changes the display order of the screen displayed by the screen display means. Therefore, the display content can be edited and the display content can be edited.

In particular, in the invention according to the fifth aspect, the display order returning means for returning the screen whose display order has been changed by the display order changing means to the display order corresponding to the order given by the ordering means. Since the display order is provided, even if the display order is changed, the display order can be returned to the initial display order.

Further, in the invention described in claim 6, the display order changing means includes a second screen selecting means for selecting a screen, and the screen selected by the second screen selecting means is placed at the top. indicate. Therefore, when a plurality of screens are displayed on one surface, a screen that is hidden by the top screen and cannot be seen can be displayed at the top.

Further, the technical means according to any one of claims 1 to 6 is, like the invention according to claim 7, provided on the display unit with a writing surface writable by writing means. Data generating means for detecting a locus written on the writing surface and converting it into digital data, locus storing means for storing a locus digitized by the data converting means, a locus stored in the locus storing means, The present invention is suitably applied to a display device provided with a display surface for displaying at least one of the trajectories written on the writing surface. That is, in such a display device, for example, an electronic blackboard, even if a plurality of screens are displayed on the touch panel and the display order is changed, the above technical means are adopted to make each screen a priority order. This is because there is no possibility that the display order of each screen is lost due to the attachment.

In the invention according to the eighth aspect, since the configuration is a storage medium in which a ranking program for performing ranking on the screen is stored, the storage medium is used, so that the storage medium is used. Can be realized. That is, for example, as described in an embodiment of the invention described later, since the control of the display device is performed by a CPU built in the display device, the storage unit as the storage medium is built in the display device. Thereby, the display device according to any one of claims 1 to 7 can be realized.

According to the ninth aspect of the present invention, since the order notification program for notifying the order of the screen is stored, the display device according to the second aspect can be realized by using the order notification program. .

In the invention according to claim 10, the display device is provided with first screen selecting means for selecting a screen, and the order notification program is selected by the first screen selecting means. The display device according to the third aspect can be realized by using the order notification program because the display device is configured to notify the displayed screen order.

Further, in the invention according to the eleventh aspect, since a display order changing program for changing the display order of the screen displayed by the screen display program is stored, by using the display order changing program, The display device according to claim 4 can be realized.

[0030] According to the twelfth aspect of the present invention, there is provided a display order returning program for returning a screen whose display order has been changed by the display order changing program to a display order corresponding to the order given by the ordering program. Is stored, the display device according to claim 5 can be realized by using the display order return program.

Further, in the invention according to the thirteenth aspect, the display device is provided with a second screen selecting means for selecting a screen, and the display order changing program executes the second screen selecting program.
Since the screen selected by the screen selecting means is displayed at the top, the display device according to claim 6 can be realized by using the display order changing program.

The technical means according to the eighth to thirteenth aspects, according to the invention according to the fourteenth aspect, provide a writing surface writable by the writing means and a trajectory written on the writing surface. Data conversion means for detecting and converting the data into digital data; trajectory storage means for storing the trajectory digitized by the data conversion means; and at least the trajectory stored in the trajectory storage means and the trajectory written on the writing surface The present invention is suitably applied to a storage medium storing a computer program for controlling a display device having a display surface for displaying one of them. In other words, in such a display device, for example, an electronic blackboard, even when a plurality of screens are displayed on the touch panel and the display order is changed, each screen is ranked by adopting the technical means described above. This is because there is no possibility that the display order of each screen is lost due to the attachment.

[0033]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the display device of the present invention will be described below with reference to the drawings. In the following embodiments, an electronic blackboard will be described as a display device of the present invention. FIG. 1 is an external view illustrating the main configuration of the electronic blackboard according to the first embodiment of the present invention. On the electronic blackboard 10,
A frame 11 is provided, and stands 16 and 16 are attached to a lower portion of the frame 11. A touch panel 12 is attached to the frame 11.
The touch panel 12 is a transparent sheet 12a serving as a writing surface.
A touch sensor (indicated by reference numeral 12b in FIG. 3) provided on the lower surface of the sheet 12a, and an LCD (reference numeral 1 in FIG. 3) provided on the lower surface of the touch sensor.
2c). A power button 13 for turning on / off the power of the electronic blackboard 10, a print button 14 for pressing the content written on the sheet 12 a on a predetermined sheet, and a printed sheet , A new window display button A that is pressed to display a new window on the touch panel 12, and a window when a window is partially displayed by moving on the screen. A full screen display button B to be pressed when switching to the screen display is provided.

Here, regarding the coordinates on the sheet 12a,
This will be described with reference to FIG. Sheet 12
The horizontal direction of a is set to the X-axis, and the vertical direction is set to the Y-axis. The direction from left to right on the sheet 12a is the plus direction of the X-axis, and the direction from top to bottom on the sheet 12a. Is the plus direction of the Y axis. Further, the coordinates (X, Y) of the upper left corner of the window are set as reference coordinates, and the window is displayed centering on the reference coordinates. In the window shown in FIG. 1, the reference coordinates of the window of the first page are (0, 0), the reference coordinates of the window of the second page are (150, 100), and the reference coordinates of the window of the third page are (210, -170).

Next, the configuration of a pen for writing on the touch panel 12 will be described with reference to the external view of FIG. The pen 30 has a grip portion 3
1 and a pen tip 32 provided at the lower end thereof. The number of pages to be pressed when displaying the number of pages of the window touched by the pen tip 32 on the touch panel 12 is provided below the grip portion 31. A button C and a drag button D for moving the window while the pen tip 32 is in contact with the window, that is, pressing when dragging, are provided. The pen 30 is electrically connected to the electronic blackboard 10 by a connection code 33, and a switching signal generated when the page number display button C and the drag button D are pressed is transmitted via the connection code 33 to the electronic blackboard. It is output to 10.

Next, the main electrical configuration of the electronic whiteboard 10 will be described with reference to FIG. Electronic blackboard 1
0, detection of a trajectory written on the touch panel 12 by the pen 30, storage of the trajectory, display of the trajectory on the touch panel 12, addition of a new window, full screen display, display of the number of pages, movement of the window, and printing of the trajectory A CPU 21 for executing various controls and processes such as an out operation is built in. The CPU 21 has a ROM 22 storing a computer program for the CPU 21 to execute various controls and processes, and a ROM 22 when the CPU 21 operates.
A RAM 23 for temporarily storing a computer program read out from the CPU and for storing display data for displaying a window, and a VRAM 24 for temporarily storing an image to be displayed on the touch panel 12 are connected.

Here, regarding the contents stored in the ROM 22,
This will be described with reference to FIG. ROM22
A trajectory detection program 22a for detecting a trajectory written on the touch panel 12, a window display program 22b for displaying a window on the touch panel 12, and a new program for adding a new window on the screen of the touch panel 12. Window addition program 22c
Full-screen display program 22 for displaying a window partially displayed on touch panel 12 in full screen
d, a page number display program 22e for displaying the page number of the window on the screen of the touch panel 12,
A window moving program 22f for moving a window displayed on the touch panel 12 on the screen is stored.

As shown in FIG. 4B, the RAM 23 has a coordinate table 23a in which the page numbers 1 to P of the window displayed on the touch panel 12 are associated with the reference coordinates (X, Y). Is stored. Furthermore, RA
As shown in FIG. 4C, the touch panel 1
2, the display order 1 to N indicating the displayed order, the number of pages 1 to P, and the display data A
A display order table 23b is stored in which the display order table 23b is associated with. The number of pages is fixed, and the display order can be changed. In the present embodiment, each window is displayed on top of each time a page is added.

Returning to the description of FIG. 3, the CPU 21 has a coordinate detection circuit 25 for detecting the coordinates of the trajectory based on the detection signal detected by the touch sensor 12b, and a display signal for displaying the trajectory. A display circuit 27 that outputs to the LCD 12c, a printer 15 that prints the locus stored in the RAM 23 on a predetermined sheet, and a pen 30 are connected. The electronic blackboard 10 has a built-in power supply circuit 29 for supplying power to each block shown in FIG.

Next, the contents of main control and processing executed by the CPU 21 will be described with reference to the flowchart of FIG. First, when an operator who operates the electronic whiteboard 10 (hereinafter, referred to as an operator) presses the power button 13 to turn on the power, various programs stored in the ROM 22 are read out and stored in the RAM 23. Then, the CPU 21 determines whether the new window addition button A has been pressed (step (hereinafter, referred to as S) 2), whether the full screen display button B has been pressed (S4), whether the power has been turned off (S6), or the pen. 30 pen point 32 is touch panel 1
2 is determined (S8). Then, C
The PU 21 determines that the new window addition button A and the full screen display button B have not been pressed and the power has not been turned off (S2: No, S4: No, S6: N).
o), when it is detected that the pen tip 32 of the pen 30 has touched the touch panel 12 (S8: Yes), the page number display button C provided on the pen 30 is pressed (S1).
0), it is determined whether the drag button D has been pressed (S12), and if it is determined that none of them has been pressed (S10: N
o, S12: No), and executes a trajectory detection process (S2).
0).

Here, the contents of the trajectory detection processing will be described with reference to the flowchart of FIG. The touch sensor 12b provided on the lower surface of the sheet 12a at the point where the pen tip 32 of the pen 30 has contacted is turned on, and the ON signal is output to the coordinate detection circuit 25.
The input ON signal is converted into digital data to create pen coordinates, and the created pen coordinates are output to the CPU 21.
Then, the CPU 21 detects the pen coordinates (S2).
2) The pen coordinates are stored in the RAM 23 as display data.
The data is stored in the storage area corresponding to the page (S24). Then, the CPU 21 returns to the main routine (S2
6) A window display process is executed (S30).

Here, the contents of the window display processing will be described with reference to the flowchart of FIG. The CPU 21 switches to any one of a new window addition flag, a full screen display flag, and a window movement flag, that is, a process of adding a new window (hereinafter, referred to as a new window addition process) and a full screen display. Processing (hereinafter referred to as full screen display processing)
Then, it is determined whether any of the processes for moving the window (hereinafter, referred to as window moving process) has been performed (S32, S36, S42). Here, since no processing has been performed yet, the process proceeds to S50 (S32:
(No, S36: No, S42: No), the display data stored in the RAM 23 is read (S50), and the read display data is output to the display circuit 27 (S52).
As a result, the display circuit 27 performs a liquid crystal display by applying a voltage to the liquid crystal at the coordinates indicated by the input display data. Subsequently, the CPU 21 returns to the main routine (S
54) Until any button is pressed, or until the pen tip 32 separates from the touch panel 12
S54 is repeated, and the storage and display of the locus by the pen tip 32 are repeated. That is, the locus as written by the pen tip 32 of the pen 30 is displayed on the touch panel 12.

Next, when the CPU 21 presses the new window addition button A provided on the frame 11 (S
2: New window (S6)
The contents of 0) will be described with reference to the flowchart of FIG. The CPU 21 sets the reference coordinates of the new window to (0, 0) (S62), increments the display order N and the page number P by 1 (S64), and indicates that a new window addition process has been performed. The window addition flag is set (S66), the process returns to the main routine (S68), and a window display process is executed (S30). Subsequently, the CPU 21 determines that the new window addition flag is set (S32 in FIG. 9:
Yes), the window displayed on the touch panel 12 is cleared, nothing is written, and the new window addition flag is reset (S3).
4) Return to the main routine (S54). And CP
When the writing is performed on the new window, U21 performs steps S8 to S21.
By executing S30, the written trajectory is stored and displayed. In the present embodiment, the new window is the one shown in FIG.
As shown in (C), B is the second display order, and B is stored as display data in the storage area corresponding to the second page. In this way, a new window can be added and writing can be performed with a single touch simply by pressing the new window addition button A, and the number of pages to which display data detected by writing in the added window has been added is corresponded. You can attach and memorize it. That is, the touch panel 12
Can be ranked.

Next, when the CPU 21 presses the full screen display button B provided on the frame 11 (S4: Ye
The contents of the full screen display process (S70) executed in s) will be described with reference to the flowchart of FIG. As shown in FIG. 6A, the CPU 21 sets all the reference coordinates stored in the coordinate table 23a to (0,
0) (S72), set the full screen display flag (S74), return to the main routine (S76), and execute window display processing (S30). Then, CPU2
1 judges that the full screen display flag is set (S36 in FIG. 9: Yes), reads the full screen display data of the window of the first page from the RAM 23 (S38), and displays the read full screen display data in the display circuit. 27, the full-screen display of the window of the first page is performed, and the full-screen display flag is reset (S40). In this manner, the window of the first page, that is, the window at the forefront, can be displayed in full screen with one touch just by pressing the full screen display button B. When the window of the first page is closed, the reference coordinates of the next window are also reset, so that the next window can be displayed in full screen. In addition, only the reference coordinates of the window of the first page can be reset.

Next, when the CPU 21 presses the page number display button C provided on the pen 30 (S10: Yes)
The contents of the page number display process (S80) executed in s) will be described with reference to the flowchart of FIG. The CPU 21 detects the pen coordinates (S82),
The number of pages is detected based on the detected pen coordinates (S84). The detection of this page number is based on the pen coordinates (X,
Y), X1 <X <the width of the window and Y
1 <Y <the height of the window is satisfied (X1, Y
The page of the window containing 1) is stored in the coordinate table 2
3a, and the page having the highest number is selected from the selected pages. For example,
In the display state shown in FIG. 1, the pen coordinates are (190, 2).
00), X1 <190 <400, and
The page of the window that satisfies the condition of Y1 <200 <300 is the first page and the second page from the coordinate table shown in FIG. 4B, and the two pages with the highest numbers among them are selected.

Then, the CPU 21 outputs the page number detected in S84 to the display circuit 27, and as shown in FIG. 5, sets the page number display area 1 in the lower left of the window.
7, the page number is displayed (S86), and the process returns to the main routine (S88). In this manner, with one touch of pressing the page number display button C provided on the pen 30,
Can display on the screen the number of pages of the window that the user is touching. The page number display area 17 is not fixed, and may be configured to be displayed at a position where the pen 30 is in contact. Further, a ROM or the like (sound data storage means) for storing sound data indicating the number of pages in voice in association with the number of pages, and a sound circuit for reading and reproducing the sound data from the ROM or the like (sound reproduction means)
A configuration in which the number of pages is notified by voice (voice notification means) may be used.

Next, when the CPU 21 presses the drag button D provided on the pen 30 (S12: Yes)
Will be described with reference to FIG. 5 and FIG. FIG. 5 is an explanatory diagram showing a display state after each of the three windows displayed in FIG. 1 has been moved, and FIG. 13 is a flowchart showing window moving processing. It is assumed that the drag function works while the drag button D is pressed. The CPU 21 continues to detect the pen coordinates with the movement of the pen 30 until it determines that the drag button D is turned off in S104 (S102). Then, when detecting that the state in which the drag button D is being pressed is released and the drag button D is turned off (S104: Yes), the CPU 21 proceeds to S10 when the movement is started.
Pen coordinates and drag button D detected in step 2 are OFF
Then, the amount of movement of the window is calculated based on the pen coordinates detected when (S106). For example, if the pen coordinates detected at the start of the movement are (170, 150) and the pen coordinates detected at the stop of the movement are (210, 150), the movement amount is (210, 150)-(17).
(0,150) = (40,0), that is, plus 40 in the X-axis direction and 0 in the Y-axis direction.

Then, the CPU 21 rewrites the reference coordinates stored in the coordinate table 23a based on the calculated movement amount (S108). For example, the window of the second page shown in FIG. 1 is moved to the position shown in FIG.
Assuming that the movement amount is (100, 0), the reference coordinates of the window on the second page are (150, 100) +
(100, 0) = (250, 100) (FIG. 6)
(B)). Similarly, the windows of the first page and the third page shown in FIG. 1 are moved to the positions shown in FIG.
(0, -200) and (90, -80) when the reference coordinates are calculated, they are (-150, -200),
(300, -250) (FIG. 6B). And
The CPU 21 sets the window movement flag (S11
0), returning to the main routine (S114), and executing a window display process (S30).

When the CPU 21 detects that the window movement flag is set (S42 in FIG. 9: Yes),
The reference coordinates stored in the coordinate table 23a are read (S44), and the display data stored in the RAM 23 is read (S46). Subsequently, the CPU 21 outputs the read reference coordinates and the display data in association with each other to the display circuit 27, resets the window movement flag (S48), and returns to the main routine (S54). In this manner, the user places the pen tip 32 on the window to be moved and
The window can be moved to a desired position simply by moving the pen tip 32 in the direction in which the user wants to move while pressing. Therefore, when a plurality of windows are opened and a previously opened window is hidden by a subsequently opened window, the subsequently opened window can be moved, so that the previously opened window can be easily viewed. Can be.

As described above, by using the electronic whiteboard of the first embodiment, the display order and the number of pages can be set when a new window is added. In addition, the number of pages in the window can be displayed with a single touch by simply pressing the page number display button C while touching the window with the pen tip 32. Therefore, even when a plurality of windows are displayed on the touch panel 12, the number of pages of a desired window can be easily known. In addition, the window can be moved in the moving direction of the pen tip 32 by a simple operation of moving the pen tip 32 while pressing the drag button D while touching the window with the pen tip 32. Even when a plurality of windows are displayed on the touch panel 12,
Editing can be performed easily. Further, even when the window is moving and a part of the window is not visible, full-screen display can be achieved by one-touch operation of pressing the full-screen display button B, so that the entire window can be viewed.

Next, an electronic blackboard according to a second embodiment of the present invention will be described with reference to FIGS. FIG.
FIG. 7 is an explanatory view showing the electronic blackboard of the second embodiment with a part thereof omitted. FIG. 15 is a flowchart in which a part of a main routine executed by the CPU 21 built in the electronic blackboard shown in FIG. 14 is omitted, and FIG.
Is a flowchart showing the window moving process executed in S100 of FIG. 15, and FIG.
16 is a flowchart showing a display order restoration process executed in S120 of FIG. The electronic blackboard according to the second embodiment is characterized in that the order in which windows are displayed on the touch panel 12 can be changed, and the changed order can be restored to the original order. The description of the same components as those in the first embodiment will be omitted, and the description will be focused on the components having different configurations.

First, the electronic blackboard 10 of the first embodiment described above.
As shown in FIG. 14, a display order restoration button E is provided below the frame 11 of the electronic blackboard 10 when the display order of the changed window is restored to the original display order. It is a point that is. Next, CP
The window moving process executed by U21 will be described with reference to FIGS. The CPU 21 shown in FIG.
As shown in the figure, a drag button D provided on the pen 30
Is detected (S12: Yes), a window moving process is executed (S100). Then, CP
U21 is, as shown in FIG.
The pen coordinates are detected until the FF is reached (S102), and when the drag button D is turned off (S104: Ye)
s), the movement amount of the window is calculated (S106), the reference coordinates are rewritten (S108), the window movement flag is set (S110), and the display order of the moved window is changed to 1 (S112). That is, the order is changed to the order displayed at the top of the touch panel 12.

For example, in the display state shown in FIG.
When the window of the first page is moved, the display order of the first page is the third as shown in FIG. 6C, but is 1st as shown in FIG. Changed to th. At this time, the display order of the other pages goes down by one, the display order of the second page becomes third, and the display order of the third page becomes second. Although the display order is changed, the number of pages is not changed as shown in FIG. And CPU2
1 returns to the main routine (S114), executes each process, and when it is detected that the display order restoration button E is pressed (S14: Yes), executes the display order restoration process (S120). Here, the display order restoration process is shown in FIG.
This will be described with reference to FIG. When the CPU 21 determines that the window movement flag is set (S122: Ye)
s) Then, the display order stored in the RAM 23 is restored to the display order before the change (S124). For example, if the display order is as shown in FIG.
The display order is restored to the display order shown in FIG. This allows
The first page displayed first returns to the third display order before the change, the third page displayed second returns to the first page, and the second page displayed third Returns to the second.

As described above, by using the electronic whiteboard 10 of the second embodiment, the moved window can be displayed at the top, so that the contents of the window can be easily viewed and edited. . Further, the changed display order can be restored with one touch of only pressing the display order restoration button E, so that the original display order can be maintained. The touched window can be displayed at the top by continuously performing the ON / OFF operation of the drag button D without moving the pen tip 32 while touching the window with the pen tip 32.

In each of the above embodiments, an electronic blackboard has been described as a display device of the present invention.
Of course, the present invention can be applied to a display device in which a computer and a display are connected. By the way, CPU2
1 executed by the CPU 21 in step S64 of FIG. 10 executed by the CPU 21.
10 and S80 to S90 in FIG. 12 function as order notification means. Also, a page number display button C shown in FIG.
Corresponds to the first screen selecting means described in claim 3. Further, S112 of FIG. 16 executed by the CPU 21 functions as a display order changing unit according to a fourth aspect. The display order restoration button E in FIG. 14 corresponds to a display order restoration unit according to claim 5, and S124 in FIG. 17 executed by the CPU 21 functions as a display order restoration unit. further,
The drag button D in FIG. 2A is the second button according to claim 6.
3, the touch sensor 12a and the coordinate detection circuit 25 in FIG. 3 correspond to the data converting means, the RAM 23 corresponds to the locus storage means,
D12b corresponds to the display surface.

[0056]

As described above, claims 1 to 1 are described.
According to the invention described in Item 4, since the display device includes the ranking unit that ranks the screens displayed on the display unit, it is possible to know the rank of the displayed screens.

According to the second aspect of the present invention, the order of the screens is notified by the order notifying means for notifying the order of the screens, so that the order of the screens can be known.

According to the third aspect of the present invention, the order notifying means includes first screen selecting means for selecting a screen, and the order of the screen selected by the first screen selecting means is determined. Since the notification is configured, the order of the screen can be known by selecting the screen for which the order is desired by the first screen selection unit.

Further, according to the fourth aspect of the present invention,
Since there is provided a display order changing means for changing the display order of the screens displayed by the screen display means, it is possible to change the display order and perform a display content editing operation or the like.

[0060] In particular, according to the fifth aspect of the present invention, the display order is returned to the display order corresponding to the order determined by the ordering means, the screen whose display order has been changed by the display order changing means. To have the means
Even if the display order is changed, it is possible to return to the initial display order.

According to the invention described in claim 6, the display order changing means includes a second screen selecting means for selecting a screen, and the screen selected by the second screen selecting means is renewed. When a plurality of screens are displayed on one surface, a screen that is hidden behind the top screen and cannot be seen can be displayed at the top.

Further, according to the invention described in any one of claims 1 to 6, as described in claim 7, a writing surface writable by writing means on the display unit, Data converting means for detecting the locus written on the trajectory and converting it into digital data, trajectory storing means for storing the trajectory digitized by the data generating means, trajectory stored in the trajectory storing means and the writing surface The present invention is suitably applied to a display device provided with a display surface for displaying at least one of the written trajectories. That is, in such a display device, for example, an electronic blackboard, even if a plurality of screens are displayed on the touch panel and the display order is changed, the above technical means are adopted to make each screen a priority order. This is because there is no possibility that the display order of each screen is lost due to the attachment.

According to the eighth aspect of the present invention,
The electronic blackboard according to any one of claims 1 to 7 can be realized by using a storage medium that stores a ranking program for ranking screens.

According to the ninth aspect of the present invention, since the order notifying program for notifying the order of the screen is stored, by using the order notifying program,
The display device according to claim 2 can be realized.

According to the tenth aspect of the present invention,
The display device includes first screen selection means for selecting a screen, and the order notification program is configured to notify the order of the screen selected by the first screen selection means. Therefore, the display device according to claim 3 can be realized by using the order notification program.

According to the eleventh aspect of the present invention, since the display order changing program for changing the display order of the screen displayed by the screen display program is stored, the display order changing program is used. Thereby, the display device according to claim 4 can be realized.

According to the twelfth aspect of the present invention,
A display order return program is stored to restore the screen whose display order has been changed by the display order change program to a display order corresponding to the order given by the ordering program. Therefore, the display order return program is used. Thereby, the display device according to claim 5 can be realized.

According to a thirteenth aspect of the present invention, the display device is provided with a second screen selecting means for selecting a screen, and the display order changing program executes the second screen selecting means. Since the screen selected by the means is displayed at the top, the display device according to claim 6 can be realized by using the display order changing program.

According to another aspect of the present invention, a writing surface which can be written by writing means and a trajectory written on the writing surface are detected by the digital device. A data conversion unit for converting data, a trajectory storage unit for storing a trajectory converted by the data conversion unit, and at least one of a trajectory stored in the trajectory storage unit and a trajectory written on the writing surface. The present invention is suitably applied to a storage medium storing a computer program for controlling a display device having a display surface. In other words, in such a display device, for example, an electronic blackboard, even when a plurality of screens are displayed on the touch panel and the display order is changed, each screen is ranked by adopting the technical means described above. This is because there is no possibility that the display order of each screen is lost due to the attachment.

[Brief description of the drawings]

FIG. 1 is an external explanatory view showing a main configuration of an electronic blackboard according to an embodiment of the present invention.

FIG. 2A is an explanatory diagram illustrating the appearance of a pen, and FIG. 2B is an explanatory diagram illustrating coordinates on a screen.

FIG. 3 is an explanatory diagram illustrating a main electrical configuration of the electronic blackboard illustrated in FIG. 1;

4A is an explanatory diagram showing the contents stored in a ROM, FIG. 4B is an explanatory diagram showing the configuration of a coordinate table, and FIG. 4C is a diagram showing the configuration of a display order table. FIG.

FIG. 5 is an explanatory diagram showing a display state after each window is moved from the display state of the screen shown in FIG. 1;

FIG. 6A is an explanatory diagram showing a coordinate table when the reference coordinates are reset, and FIG. 6B is an explanatory diagram showing a coordinate table when the reference coordinates are rewritten;
FIG. 6C is an explanatory diagram showing the display order table before the display order is changed, and FIG. 6D is an explanatory diagram showing the display order table after the display order is changed.

FIG. 7 is a flowchart showing the contents of main control and processing executed by a CPU 21;

FIG. 8 is a flowchart showing a trajectory detection process executed by the CPU 21 in S20 of FIG. 7;

FIG. 9 is a flowchart showing a window display process executed by the CPU 21 in S30 of FIG. 7;

FIG. 10 is a flowchart showing a new window adding process executed by the CPU 21 in S60 of FIG. 7;

FIG. 11 is a flowchart showing a full screen display process executed by the CPU 21 in S70 of FIG. 7;

FIG. 12 is a flowchart illustrating a page number display process executed by the CPU 21 in S80 of FIG. 7;

FIG. 13 is a flowchart showing a window moving process executed by the CPU 21 in S100 of FIG. 7;

FIG. 14 is an external appearance explanatory view showing a part of the electronic blackboard according to the second embodiment of the present invention with the parts omitted;

FIG. 15 is a flowchart illustrating a main control and a process executed by a CPU 21 incorporated in an electronic blackboard according to a second embodiment of the present invention, with a part thereof being omitted;

FIG. 16 is a flowchart showing a window moving process executed by the CPU 21 in S100 of FIG. 15;

17 is a flowchart showing a display order restoration process executed by the CPU 21 in S120 of FIG.

[Explanation of symbols]

 Reference Signs List 10 electronic blackboard 12 touch panel 12a sheet 12b touch sensor 12c LCD 13 power button 21 CPU 22 ROM 23 RAM 23a coordinate table 23b display order table 24 VRAM 30 pen A new window addition button B full screen display button C page number display button D drag button

Claims (14)

[Claims] 1. A display device having a display unit capable of displaying a plurality of screens superimposed on one display surface, the display device further comprising: ranking means for ranking the screens. 2. The display device according to claim 1, further comprising a rank notifying unit for notifying a rank of the screen. 3. The method according to claim 1, wherein the order notifying means includes first screen selecting means for selecting the screen, and is configured to notify the order of the screen selected by the first screen selecting means. The display device according to claim 2, wherein: 4. The display device according to claim 2, further comprising a display order changing unit that changes a display order of the screens displayed by the screen display unit. 5. A display order returning means for returning a screen whose display order has been changed by said display order changing means to a display order corresponding to the order given by said ordering means. The display device according to claim 4. 6. The display order changing means includes a second screen selecting means for selecting the screen, and is configured to display the screen selected by the second screen selecting means at the top. 5. The method according to claim 4, wherein
Or the display device according to claim 5. 7. The display unit includes: a writing surface that can be written by writing means; a data conversion unit that detects a trajectory written on the writing surface and converts the data into digital data; 2. A trajectory storage means for storing a trajectory that has been recorded, and a display surface for displaying at least one of the trajectory stored in the trajectory storage means and the trajectory written on the writing surface. Or claim 6
The display device according to any one of the above. 8. A storage medium storing a computer program for controlling a display device having a display unit capable of displaying a plurality of screens superimposed on one display surface, wherein a ranking program for ranking the screens is provided. A storage medium characterized by having stored therein. 9. The storage medium according to claim 8, wherein a rank notification program for notifying the rank of the screen is stored. 10. The display device includes first screen selection means for selecting the screen, and the order notification program notifies the order of the screen selected by the first screen selection means. The storage medium according to claim 9, wherein the storage medium is configured to perform the operation. 11. The storage medium according to claim 9, wherein a display order changing program for changing a display order of a screen displayed by said screen display program is stored. 12. A display order restoring program for restoring a screen, the display order of which has been changed by the display order changing program, to a display order corresponding to the order given by the ordering program is stored. The storage medium according to claim 11. 13. The display device further comprises a second screen selecting means for selecting the screen, wherein the display order changing program places the screen selected by the second screen selecting means on the top of the screen. The storage medium according to claim 11, wherein the storage medium is configured to be displayed on a storage medium. 14. The display unit, further comprising: a writing surface writable by writing means; a data conversion means for detecting a locus written on the writing surface and converting the data into digital data; 9. A trajectory storage means for storing a trajectory that has been recorded, and a display surface for displaying at least one of a trajectory stored in the trajectory storage means and a trajectory written on the writing surface. Claim 13
The display device according to any one of the above.