JP2001051825A - Display controller and storage medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display the whole image of process data without switching a display screen by displaying a 1st display range which is specific in an object display area to be displayed on the display screen of a screen display means and displaying a 2nd display range which is specified in the object display area to be displayed by a projection display means. SOLUTION: A CPU 2 specifies a window range showing the size of a window displayed on the desk-top screen of a display device 4 and writes data on the desk-top screen of a frame memory in a VRAM 5 so that windows overlap. The CPU 2 displays the frame memory on the desk-top screen of the display device 4. When a logical screen is selected as a projecting method and all data are specified as a data range, a projection display device 7 projects and displays all the process data irrelevantly to the physical screen size of the display device 4, so editor operation on the display device 4 can be carried out while the whole image on the projection display device 7 is recognized.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a display control device for displaying processing data and the like.

[0002]

2. Description of the Related Art Conventionally, a PC (Personal Computer), a notebook PC, and a PDA (Personal Digital Assistant) have been used.
A CRT (Cathode Ray Tube), a liquid crystal display device, or the like is used as a display control device that displays the data processed in (t). In a presentation or the like performed at a conference or the like, there is a method of displaying data of a PC on a screen or the like using a projection device such as a projector device.

[0003]

However, the above display control device has the following problems. In a CRT and a liquid crystal display device, the data display area is limited to the physical screen size of the display. Therefore, when displaying a large window, the entire window cannot be displayed within the display screen. Therefore, it is necessary to switch the display screen to see the layout of the window when executing the data processing.

[0004] Further, in the projector device, although the data display area is large, the display content is the same as the content displayed on the display screen of a PC or the like, so that the display screen is frequently switched during a presentation. Needed.

An object of the present invention is to provide a display control device capable of displaying an entire image of processed data without switching display screens when executing data processing.

[0006]

According to the first aspect of the present invention, there is provided a screen display means (for example, corresponding to the display device 4 shown in FIG. 3) and a projection display means (for example, FIG. 3) is connected to the display control device, and a predetermined first display range within a display area to be displayed is displayed on the display screen of the screen display means. Display control means for causing the projection display means to display a predetermined second display range in a display area to be displayed (for example, step S4 in the flowchart shown in FIG. 5; step S4 in the flowchart shown in FIG. 7). S3
Corresponds to 8. ).

According to the first aspect of the present invention, there is provided a display control device in which the screen display means and the projection display means are connected, wherein the display control means includes a predetermined first display area within a display area to be displayed. One display range is displayed on the display screen of the screen display means, and a predetermined second display range within the display area to be displayed is displayed by the projection display means.

Therefore, the second display range, which is different from the first display range displayed on the display screen of the screen display means, is displayed by the projection display means, so that the entire image displayed by the projection display means is recognized. Meanwhile, the editor work can be performed on the display screen of the screen display means.

According to a fifth aspect of the present invention, there is provided a display control device wherein the screen display means and the projection display means are connected, and when displaying a plurality of display contents, a predetermined first of the display contents is displayed.
Display the display contents on the display screen of the screen display means,
Display control means for projecting and displaying other display contents by the projection display means (for example, step S4 in the flowchart shown in FIG. 5; step S7 in the flowchart shown in FIG. 12)
Corresponds to 6. ).

According to the fifth aspect of the present invention, in the display control device wherein the screen display means and the projection display means are connected, the display control means, when displaying a plurality of display contents,
Among the display contents, predetermined first display contents are displayed on the display screen of the screen display means, and other display contents are projected and displayed by the projection display means.

Therefore, the display contents different from the display contents of the screen display means are projected and displayed by the projection display means.
The editor work can be executed on the display screen of the screen display means while the reference material is projected and displayed on the projection display means.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a notebook personal computer 100 to which the present invention is applied will be described below in detail with reference to FIGS.

First Embodiment FIGS. 1 to 7 show a notebook personal computer 100 according to a first embodiment of the present invention. FIG. 1 is a view showing the appearance of a notebook computer 100, and FIG.
FIG. 2B is a side view showing the rear part of the notebook computer 100. As shown in FIG. 1, the notebook personal computer 100 is schematically configured by a main body 101, a display 102, a keyboard 103, and a projector 104.

Then, the notebook computer 100 is configured as shown in FIG.
As shown in FIG. 1, a screen A is displayed on the display 102, and a screen B different from the screen A is projected on an external screen 105 using the projector 104 (FIG. 1).

FIG. 3 shows a notebook computer 100 of the present invention.
1 is a block diagram showing a configuration of a main part of a computer 1 as an embodiment. In FIG. 1, a computer 1 includes a CPU 2, an input device 3, a display device 4, a VRAM 5, a RAM 6, a projection display device 7, a projection buffer 8, a printing device 9, and a storage device 1.
0, and a storage medium 11, and each unit except the storage medium 11 is connected by a bus 12.

CPU (Central Processing Unit) 2
Expands various programs and data such as a basic control program stored in the storage device 10 into a program storage area (not shown) in the RAM 6 and temporarily stores various instructions or data input from the input device 3 in the RAM 6. And executes processing in accordance with the program stored in the storage device 10 in accordance with the input instruction and the input data. Further, the CPU 2 stores the processing result in the VRAM 5, R
AM6, and stored in the projection buffer 8,
The information is displayed on the display device 4 and the projection display device 7. And
The processing result stored in the RAM 6 is stored in a storage location in the storage device 10 which is instructed to be input from the input device 3.

Further, the CPU 2 expands data stored in a data file (not shown) of the storage device 10 into a window display area buffer 62 of the RAM 6 in a “frame memory display process” described later. Here, the entire area of the developed data corresponds to the actual data range 62a shown in FIG. In addition, it is assumed that the source data of the display content is expanded in the desktop display area buffer 61 in advance.

Next, the CPU 2 specifies a window range 62b indicating the size of the window to be displayed on the desktop screen of the display device 4, and causes the window 53 to overlap the desktop screen 52 of the frame memory 51 in the VRAM 5. Write data. And CPU
2 displays the frame memory 51 on the desktop screen of the display device 4.

In the “projection display designation process” described later, the CPU 2 uses four projection methods (1.
2. Window, 3. Frame, 4. The display device 4 displays a projection method selection menu in which one projection method can be selected from (display OFF), and allows the user to select one projection method from the projection method selection menu using the input device 3.

If a logical screen is selected as the projection method, the CPU 2 sets a logical screen flag and
The power of the projection display device 7 is turned on. When a window is selected, the CPU 2 sets a window flag and turns on the power of the projection display device 7. Also,
When a frame is selected, a frame flag is set and the power of the projection display device 7 is turned on. On the other hand, display O
When FF is selected, the CPU 2 resets the flag.

If the flag is not set in the "projection display process" described later, the CPU 2 clears the data in the projection buffer 8 and turns off the power of the projection display device 7.

When the logical screen flag is set, the CPU 2 allows the user to specify a data range to be projected and displayed on the projection display device 7 in the window display area buffer 62 of the RAM 6. Here, the data range is arbitrary as long as the range can be projected and displayed by the projection display device 7, and the maximum range is the actual data range 62a. Next, the CPU 2 converts the specified data range into the size of the projection buffer 8 and copies it to the projection buffer 8.
Then, the CPU 2 causes the projection display device 7 to project and display the data in the projection buffer 8.

When the window flag is set, the CPU 2 converts the window range 62b of the window display area buffer 62 of the RAM 6 into the size of the projection buffer 8 and copies the size to the projection buffer 8. Then, the CPU 2 causes the projection display device 7 to project and display the data in the projection buffer 8.

When the frame flag is set, the CPU 2 operates the frame memory 51 in the VRAM 5
Is copied to the projection buffer 8, and the data in the projection buffer 8 is projected and displayed by the projection display device 7.

After the CPU 2 causes the projection display device 7 to project and display, the display data is repeatedly refreshed.

The input device 3 includes a keyboard and a mouse provided with a cursor key, numeric input keys, various function keys, and the like, and outputs a pressed signal of a pressed key and a mouse position signal to the CPU 2.

The display device 4 is constituted by a liquid crystal display device or the like, and displays display data input from the CPU 2 on a desktop screen (not shown).

VRAM (Video Random Access Memory)
5 includes a frame memory 51 in which display contents displayed on the desktop screen of the display device 4 are expanded as shown in FIG. And this frame memory 5
1 is composed of a desktop screen 52 and a window 53, and the desktop screen 52 is a display device 4
One-to-one correspondence with the desktop screen. In FIG. 4A, the frame memory 51 displays one window 53 on the desktop screen 52.
A plurality of windows may be displayed.

A RAM (Random Access Memory) 6 stores C
The PU 2 forms a memory area for expanding various data when executing the application program, and stores source data of display contents displayed on the display device 4 and the projection display device 7. As shown in FIG. 4B, the RAM 6 has a desktop display area buffer 61,
And a window display area buffer 62.

The desktop display area buffer 61 stores the source data of the display contents displayed on the desktop screen of the display device 4, and has the same physical size as the frame memory 51 of the VRAM 5.

The window display area buffer 62 includes an actual data range 62a indicating the range of all data being processed,
In the actual data range 62a, a window range displayed on the desktop screen of the display device 4 and a window range 62b specified by the user are set.

The projection display device 7 is a projector that projects and displays data on a screen 105 (see FIG. 2) or the like in accordance with an instruction from the CPU 2.

As shown in FIG. 4C, the projection buffer 8 is a VRAM in which display contents projected and displayed by the projection display device 7 are expanded.

The printing device 9 is constituted by a printer or the like, and outputs data input from the CPU 2.

The storage device 10 has a storage medium 11 for storing programs, data, and the like.
Reference numeral 1 denotes a magnetic or optical recording medium or a semiconductor memory. The storage medium 11 is fixedly provided in the storage device 10 or is detachably mounted.

A program stored in the storage medium 11,
The data and the like may be configured to be received and stored from another device connected via a communication line or the like, and further provided with a storage device provided with the storage medium on the other device side connected to the communication line or the like. May be provided, and the program and data described in the storage device may be used via a communication line.

Next, the "frame memory display process" executed by the CPU 2 of the computer 1 will be described with reference to FIG.
This will be described in detail with reference to the flowchart shown in FIG.

First, the CPU 2 expands the data in the data file into the window display area buffer 62 (Step S1). Next, the CPU 2 sets the window range 62
b (step S2), and the frame memory 51
A window 53 is written on the desktop screen 52 (in the VRAM 5) so as to overlap (Step S)
3) Display the data in the frame memory 51 on the display device 4 (step S4).

FIG. 6 shows the CPU 2 of the computer 1.
6 is a flowchart showing an operation of a “projection display designation process” executed by the CPU. The operation of the “projection display designation process” will be described in detail with reference to FIG.

First, the CPU 2 displays a projection method selection menu on the display device 4 (step S11). here,
The projection method selection menu includes four projection methods (1. logical screen, 2. window, 3. frame, 4. display OF).
This is a selection menu that allows the user to select one projection method from F).

Next, the CPU 2 allows the user to select a projection method using the input device 3 (step S12), and determines whether or not the selected projection method is a logical screen (step S13).

If the selected projection method is a logical screen (step S13; Yes), the CPU 2 sets a logical screen flag (step S14) and turns on the power of the projection display device 7 (step S14). S19), the process ends. If the screen is not a logical screen (step S1)
3; No), the CPU 2 determines whether the projection method selected in step S12 is a window (step S15).

If the selected projection method is a window (step S15; Yes), the CPU 2
Sets the window flag (step S16),
The power of the projection display device 7 is turned on (step S1).
9), end the processing. If it is not a window (step S15; No), the CPU 2 proceeds to step S1.
It is determined whether the projection method selected in step 2 is a frame (step S17).

If the selected projection method is a frame (step S17; Yes), the CPU 2
The frame flag is set (step S18), the power of the projection display device 7 is turned on (step S19), and the process ends. If it is not a frame (step S1
5; No), the CPU 2 determines whether the projection method selected in step S12 is display OFF (step S20).

Then, the selected projection method is displayed on the display OF
If it is F (step S20; Yes), the CPU 2
Resets the flag (step S21) and ends the process. If the display is not OFF (step S2
0; No), the CPU 2 ends the processing as it is.

FIG. 7 is a flowchart showing the operation of the "projection display process" executed by the CPU 2 of the computer 1. The operation of the “projection display processing” will be described in detail with reference to FIG.

When the power of the projection display device 7 is turned on, the CPU 2 first determines whether or not the flag has been set (step S31).

If the flag is set (step S31; Yes), the CPU 2 determines whether or not the flag is a logical screen flag (step S32). If the flag is not set (step S3)
1; No), the CPU 2 clears the projection buffer 8 (step S39), turns off the power of the projection display device 7 (step S40), and ends the processing.

If the flag is a logical screen flag (step S32; Yes), the CPU 2 allows the user to specify a data range in the window display area buffer 62 (step S33), and then stores the specified data range in the projection buffer. 8 and copied to the projection buffer 8 (step S34). Next, the CPU 2 causes the projection display device 7 to project and display (Step S38),
Returning to step S31, the contents projected and displayed are refreshed.

If it is determined in step S32 that the flag is not a logical screen flag (step S32; No), the CPU 2
Determines whether the flag is a window flag (step S35).

Here, in the case of the window flag (step S35; Yes), the CPU 2 converts the window range 62b in the window display area buffer 62 into the size of the projection buffer 8 and copies it to the projection buffer 8 (step S35). S36). Next, the CPU 2 causes the projection display device 7 to perform projection display (step S38), and returns to step S31 to refresh the projected display content.

If it is not a window flag (step S35; No), that is, if it is a frame flag, C
The PU 2 copies the display data range in the frame memory 51 to the projection buffer 8 (Step S37). next,
The CPU 2 causes the projection display device 7 to project and display (step S38), and returns to step S31 to refresh the projected and displayed contents.

As described above, the notebook personal computer 100 according to the first embodiment employs one of three projection methods.
The user selects one of the projection methods and causes the projection display device 7 to perform projection display.

When the logical screen is selected as the projection method and all the data is specified as the data range 62b, the projection display device 7 projects and displays all the processed data irrespective of the physical screen size of the display device 4. Therefore, the editor work on the display device 4 can be executed while recognizing the entire image of the projection display device 7.

By specifying the window range 62b in the window display area buffer 62 in the RAM 6, the range of data to be displayed by the projection display device 7 can be easily set.

Further, since the projector 104 is mounted on the notebook personal computer 100 and there is no need to provide a separate projector, space can be saved and the cost can be reduced.

[Second Embodiment] FIGS. 8 to 12 show a notebook personal computer 100 according to a second embodiment of the present invention. A computer 1 according to the second embodiment will be described with reference to FIGS.

The main configuration of the computer 1 in the second embodiment is substantially the same as the main configuration of the computer 1 described in the first embodiment. The description is omitted. In the second embodiment, the same components as those of the first embodiment will be described using the same reference numerals. Further, in the second embodiment, the CPU 2 executes the “frame memory display process” shown in FIG. 5, but the description is omitted here because the description is the same as that of the first embodiment.

In the second embodiment, the RAM 6, the projection buffer 8, and the CPU 2 which are different from the first embodiment will be mainly described.

FIG. 8 is a diagram showing a display state of the desktop screen of the display device 4. As shown in FIG. In the figure, the desktop screen displays window A (hereinafter referred to as WinA) (4).
1), WinB (42), and WinC (43)
Two different windows are displayed.

As shown in FIG. 9, the RAM 6 includes a desktop display area buffer 61, a window display area buffer 62, and so on.

The desktop display area buffer 61 stores source data to be displayed on the display device 4.

The window display area buffer 62 includes WinA (63), which is the window (active window) of priority 1 displayed on the display device 4 (see FIG. 8),
It stores WinB (64), which is a priority 2 window (inactive window), and WinC (65), which is a priority 3 window. Here, WinA
(63) is composed of a plurality of pages 63a, 63b, 63c...

The RAM 6 forms a memory area for expanding various data when the CPU 2 executes an application program, and stores source data of display contents displayed on the display device 4 and the projection display device 7. ing.

FIGS. 10A and 10B show the projection buffer 8 according to the second embodiment. FIG. 10A shows the projection buffer 8 when the active flag is set, and FIG. (C) shows the projection buffer 8 when a page image is selected and the image flag is set.

In the “projection display designation process” to be described later, the CPU 2 executes three projection display objects (1.
2. Page, 3. A projection display target selection menu in which one projection display target can be selected from the specified range) is displayed on the display device 4, and the user selects one projection display target from the selection menu using the input device 3.

Here, when the window is selected, C
The PU 2 displays on the display device 4 a window selection menu in which a window to be displayed can be selected from the two windows (1. active and 2. inactive), and allows the user to select the window to be displayed using the input device 3. When the active is selected, the CPU 2
Sets the active flag, and when inactive is selected, the CPU 2 sets the inactive flag. Next, the CPU 2 turns off the power of the projection display device 7.
N is set and the process ends.

When a page is selected, the CPU 2
Displays a preview of document data in the active window for each page on the display device 4 and allows the user to select a page using the input device 3. Then, the CPU 2 converts the selected page image into a projection buffer size, copies it to the projection buffer 8, and sets an image flag. Then
The CPU 2 turns on the power of the projection display device 7 and ends the process.

When the designated range is selected, the CPU
2 allows the user to specify a desired window with the input device 3, and further specifies an arbitrary range within the specified window. Then, the CPU 2 converts the image in the specified range into a projection buffer size, copies the image to the projection buffer 8, and sets an image flag. Next, the CPU 2 turns on the power of the projection display device 7 and ends the process.

When the active flag is set in the “projection display process” described later, the CPU 2 specifies the window of the first priority (active window): WinA (63) in the window display area buffer 62. Then, the CPU 2 converts the window range within the specified window into the projection buffer size, and copies it to the projection buffer 8. Next, the CPU 2 causes the projection display device 7 to perform projection display. And CPU2
Refreshes the display contents projected and displayed.

When the inactive flag is set, the window of the second priority (inactive window) in the window display area buffer 62: Win
B (64) is specified. Then, the CPU 2 converts the window range within the specified window into the projection buffer size, and copies it to the projection buffer 8. Then, CP
U2 is projected and displayed by the projection display device 7. Then, the CPU 2 refreshes the display contents projected and displayed.

When the image flag is set, the CPU 2 causes the projection display device 7 to project and display the image copied to the projection buffer 8 in the above-mentioned "projection display designation process". Then, the CPU 2
Refreshes the projected display contents.

FIG. 11 is a flowchart showing the operation of the “projection display designation process” executed by the CPU 2 of the computer 1. The operation of the “projection display designation process” will be described in detail with reference to FIG.

First, the CPU 2 displays a projection display target selection menu (step S51). Here, the projection display target selection menu is a selection menu that allows the user to select one projection display target from three projection display targets (1. window, 2. page, 3. specified range).

Next, the CPU 2 allows the user to select one projection display target (step S52), and determines whether or not the selected projection display target is a window (step S53).

If the selected projection display target is a window (step S53; Yes), the CPU 2
Displays a window selection menu (step S5).
4) The user is caused to select a window from the window selection menu (step S55). Here, the window selection menu is a selection menu that allows the user to select one window from two windows (1. active, 2. inactive).

Then, the CPU 2 determines whether or not the selected window is active (step S56). If the selected window is active (step S5)
6; Yes), the CPU 2 sets the active flag (step S57), turns on the power of the projection display device 7 (step S68), and ends the process. If not active (step S56; No), the CPU 2
Sets an inactive flag (step S5).
8) Then, the power of the projection display device 7 is turned on (step S).
68), and the process ends.

In step S53, if the selected projection display target is not a window (step S5).
3; No), the CPU 2 determines whether or not the selected window is a page (step S59).

If the selected projection display target is a page (step S59; Yes), the CPU 2
Document data in the active window (WinA)
A preview is displayed for each page (step S60), and the user selects a page (step S61).

Next, the CPU 2 converts the selected page image into a projection buffer size and copies it to the projection buffer 8 (step S62), sets an image flag (step S67), and turns on the power of the projection display device 7. It is turned ON (step S68), and the process ends.

In step S59, if the selected projection display target is not a page (step S59;
No), the CPU 2 determines whether or not the selected projection display target is in the specified range (step S63).

Here, if the selected window is within the specified range (step S63; Yes), the CPU 2
A desired window is designated by the user (step S64), and an arbitrary range within the designated window is designated by the user (step S65).

Then, the CPU 2 converts the image in the specified range to the projection buffer size, copies it to the projection buffer 8 (step S66), sets the image flag (step S67), and turns on the power of the projection display device 7. ON
(Step S68), and the process ends.

If it is determined in step S63 that the selected projection display target is not in the specified range (step S6).
3; Yes), and return to step S51.

FIG. 12 is a flowchart showing the operation of the "projection display process" executed by the CPU 2 of the computer 1. The operation of the “projection display processing” will be described in detail with reference to FIG.

First, the CPU 2 determines whether or not the active flag is set (step S71). If the active flag is set (step S7)
1; Yes), the CPU 2 specifies the window of the first priority (active window) in the window display area buffer 62 (step S72).

Next, the CPU 2 converts the window range within the specific window into the projection buffer size, copies it to the projection buffer 8 (step S75), and causes the projection display device 7 to project and display (step S76). After the projection display, the process returns to step S71, and the CPU 2 refreshes the display contents.

If the active flag is not set in step S71 (step S71;
No), the CPU 2 determines whether or not the inactive flag is set (step S73).

Here, if the inactive flag is set (step S73; Yes), the CPU 2
The window of the second priority (inactive window) is specified in the window display area buffer 62 (step S74).

Then, the CPU 2 converts the window range within the specific window into the projection buffer size, copies it into the projection buffer 8 (step S75), and causes the projection display device 7 to project and display (step S76). After the projection display, the process returns to step S71, and the CPU 2 refreshes the display contents.

If the inactive flag is not set (step S73; No), the CPU 2 causes the projection display device 7 to project and display (step S7).
6). After the projection display, the process returns to step S71, and the CPU 2
Refreshes the displayed content.

As described above, the notebook computer 100 according to the second embodiment allows one projection display object to be selected from the three types of projection display objects, and causes the projection display device 7 to perform projection display.

When a window is selected as a projection display target, a window specified from a plurality of windows displayed on the display device 4 can be projected and displayed by the projection display device 7, so that movement between windows can be quickly performed. Can be performed.

Similarly, when a page is selected as a projection display target, a page image specified from a plurality of page images displayed on the display device 4 can be projected and displayed by the projection display device 7, so that a Movement can be performed quickly.

[0095]

According to the display control device of the first aspect and the storage medium of the ninth aspect, the second display range different from the first display range displayed on the display screen of the screen display means is projected. Since the image is displayed on the display means, the editor work can be executed on the display screen of the screen display means while recognizing the entire image displayed by the projection display means.

According to the second and third aspects of the present invention, the projection display means has a wide data display range without being limited to the physical display range unlike the screen display means.
It is suitable for displaying all data and grasping the entire image.

According to the fourth aspect of the invention, it is possible to project and display the display contents in a display range suitable for the user on the projection display means.

According to the display control device of the fifth aspect and the storage medium of the tenth aspect, the display contents different from the display contents of the screen display means are projected and displayed by the projection display means. The editor work can be executed on the display screen of the screen display means while projecting and displaying the reference material.

According to the sixth aspect of the present invention, a plurality of windows are displayed on the screen display means, and a page arbitrarily specified from among the plurality of windows is projected and displayed on the projection display means. Movement can be performed quickly.

According to the seventh aspect of the present invention, a plurality of pages are displayed on the screen display means, and a page arbitrarily specified from among the plurality of pages is projected and displayed on the projection display means. Movement can be performed quickly.

According to the eighth aspect of the present invention, since the projection unit is provided in the main body and there is no need to provide a separate projector, space can be saved and the cost can be reduced. .

[Brief description of the drawings]

FIG. 1 is a side view of a notebook computer 100 to which the present invention is applied.

FIG. 2 is a perspective view showing the appearance of a notebook computer 100 to which the present invention is applied.

FIG. 3 is a block diagram showing a configuration of a main part of a computer 1 as a notebook personal computer 100 of the present invention.

FIGS. 4A and 4B are diagrams illustrating main parts according to the first embodiment, wherein FIG. 4A is a diagram illustrating a VRAM 5, FIG. 4B is a diagram illustrating a RAM 6, and FIG.

FIG. 5 is a flowchart illustrating an operation of a “frame memory display process” executed by a CPU 2 of the computer 1;

FIG. 6 is a flowchart illustrating an operation of a “projection display designation process” executed by the CPU 2 of the computer 1;

FIG. 7 is a flowchart showing an operation of a “projection display process” executed by a CPU 2 of the computer 1;

8 is a diagram showing a display state of a desktop screen of the display device 4. FIG.

FIG. 9 is a diagram illustrating a configuration of a main part in a RAM according to a second embodiment;

FIG. 10 is a diagram illustrating a projection buffer 8 according to the second embodiment.

FIG. 11 is a flowchart illustrating an operation of a “projection display designation process” executed by the CPU 2 of the computer 1;

FIG. 12 is a flowchart illustrating an operation of a “projection display process” executed by a CPU 2 of the computer 1;

[Explanation of symbols]

 [First Embodiment] 100 Notebook personal computer 101 Main body 102 Display 103 Keyboard 104 Projector 1 Computer 2 CPU 3 Input device 4 Display device 5 VRAM 51 Frame memory 52 Desktop screen 53 Window 6 RAM 61 Desktop display area buffer 62 Window display Area buffer 62a Actual data range 62b Window range 7 Projection display device 8 Projection buffer 9 Printing device 10 Storage device 11 Storage medium 12 Bus [Second embodiment] 4 Display device 41 WinA 42 WinB 43 WinC 6 RAM 61 Desktop display area Buffer 62 Window display area buffer 63 WinA (priority 1) 63a page 1 63b page 2 63c page 3 64 WinB (priority 2) 65 Win (Priority 3)

Claims (10)

[Claims] 1. A display control device wherein a screen display means and a projection display means are connected, wherein a predetermined first display range within a display area to be displayed is displayed on a display screen of the screen display means. A display control unit for causing the projection display unit to display a predetermined second display range in a display area to be displayed. 2. The first display range is a physical display range that can be displayed in a window displayed on the screen display means, and the second display range is a logical display range that can be displayed in the window. The display control device according to claim 1, wherein: 3. The method according to claim 2, wherein the first display range is a physical display range displayed by the screen display means, and the second display range is a single window display range including the first display range. The display control device according to claim 1. 4. The display control device according to claim 1, wherein said second display range is an arbitrary designated range within a display target area. 5. A display control device in which a screen display means and a projection display means are connected, wherein when displaying a plurality of display contents, a predetermined first display content among the display contents is displayed on the screen display means. And a display control means for displaying the other display contents by the projection display means. 6. The method according to claim 6, wherein the plurality of display contents are a plurality of windows, wherein a first window is displayed on the screen display means as the first display content, and a second window is projected and displayed by the projection display means. The display control device according to claim 5, wherein: 7. The plurality of display contents are a plurality of pages, and a page arbitrarily designated among the plurality of pages is projected and displayed by the projection display means. Display control device. 8. The display control apparatus according to claim 1, wherein the projection section of the projection display means is housed in the apparatus main body, and performs projection display from a side of the main body. 9. A storage medium storing a computer-executable program in a display control device to which a screen display means and a projection display means are connected, wherein a predetermined first display in a display area to be displayed is provided. A computer-executable program code for displaying the range on the display screen of the screen display means, and a predetermined second display range in the display area to be displayed by the projection display means. A storage medium storing a program including: a computer-executable program code; 10. A storage medium storing a computer-executable program in a display control device to which a screen display means and a projection display means are connected, wherein when displaying a plurality of display contents, A program code executable by a computer for displaying predetermined first display contents on the display screen of the screen display means, and a computer code capable of projecting and displaying other display contents by the projection display means. A storage medium characterized by storing a program including: