JP2006030379A - Multi-display system and computer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a multi-display system capable of displaying an object in a proper display size even when the object is cut or copied from one of a plurality of displays which display the object with mutually different resolutions and which are pasted to another display. <P>SOLUTION: When a selected object to be pasted to a 2nd display 30 is specified out of objects displayed on a 1st display 20, a key information value indicating resolution information of the 1st display 20 can be acquired from a key information value table and a weight information value indicating resolution information of the 2nd display 30 can be acquired from a weight information value table. An object size conversion rate is determined based upon those information values and the selected object is enlarged or reduced at the conversion rate, so the object can be pasted in a proper display size. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a multi-display system in which a plurality of displays are connected to a computer, and a computer suitable for this system.

  A so-called multi-display system is configured by connecting two or more displays to one server or the like as disclosed in Japanese Laid-Open Publication No. 10-187110. In a multi-display system, various objects can be displayed on a plurality of displays simultaneously from one server or the like.

Therefore, for example, if you create a document on one display and display an image on another display, you can display it without switching the window on one display or searching for the image again. Part of the image inside can be captured in the document. In addition, when the document creation screen and image are displayed on one display, the display area becomes narrow and difficult to work, but the multi-display system can eliminate such inconvenience and is comfortable. A simple document creation environment.
Japanese Patent Laid-Open No. 10-187110

  However, in such a multi-display system, if a part of an object displayed at a high resolution on one display is cut or copied and pasted on another display that is displayed at a low resolution, the difference in resolution is caused. The pasted object is enlarged and displayed on the other display, and protrudes from the screen. Conversely, if you cut or copy a part of an object that is displayed at a low resolution on one display and paste it on another display that is displayed at a high resolution, the pasted object will be high. It will be too small on the display screen during resolution display. For this reason, the user of this system is obliged to adjust the display size on any of the displays, which is inconvenient.

  In view of such inconveniences, the present invention displays an object with an appropriate display size when an object is cut or copied from one display and pasted to another display among a plurality of displays that display objects at different resolutions. It is an object of the present invention to provide a multi-display system that can be used.

  Another object of the present invention is to provide a computer suitable for a multi-display system.

  A multi-display system according to an embodiment of the present invention includes a storage unit that stores data of a selected object that is partially selected from objects displayed on a first display, and a first display that indicates a display resolution of the first display. Determining means for determining an object size conversion rate for converting the size of the selected object based on the resolution information and the second resolution information indicating the display resolution of the second display for displaying the selected object; Conversion means for converting data based on the rate to generate conversion data, and display means for displaying the selected object on the second display using the conversion data.

  The computer according to the embodiment of the present invention displays a storage unit that stores data of a selected object that is partially selected from the object, first resolution information that indicates a display resolution at which the object is displayed, and the selected object. Determining means for determining a size conversion rate for converting the size of the data based on the second resolution information indicating the display resolution; and converting means for converting the data based on the size conversion rate to obtain converted data Display means for displaying the selected object using the conversion data.

  According to the present invention, when an object is cut or copied from a first display and pasted on a second display between a plurality of displays that display the object at different resolutions, the object is displayed in an appropriate display size. can do.

(First embodiment)
Hereinafter, a multi-display system according to a first embodiment of the present invention will be described with reference to the accompanying drawings.

  As shown in FIG. 1, the multi-display system 1 according to the first embodiment includes a personal computer 10 (hereinafter referred to as a PC 10), and a first display 20 and a second display 30 connected to the PC 10, respectively. ing.

  The PC 10 has a function of controlling object display on the screens of the displays 20 and 30. Specifically, the driver 11 that controls the first display 20 and object data of objects displayed on the display 20 are displayed. A memory 12 (VRAM) for storing, a driver 13 for controlling the second display 30, and a memory 14 (VRAM) for storing object data of objects to be displayed on the display 30 are provided.

  The drivers 11 and 13 have information about which resolution the display 20 or 30 displays (or displays) an object, that is, resolution information. The resolution information may be, for example, an index representing the distinction between VGA, SVGA,..., QUXGA.

  Further, the PC 10 includes a memory 15. The memory 15 includes a key information storage unit 151 and a weight information storage unit 152. The key information storage unit 151 has a key information value table. The key information value table is composed of resolution information indicating the resolution of the display and key information values associated with the resolution information.

  For example, in the key information value table illustrated in FIG. 2, the resolution information VGA is 500, the SVGA is 400, the XGA is 312.5, the SXGA is 250, the UXGA is 200, and the UXGA is 500. On the other hand, a value of 100 is associated. These values are determined so that the product of the total number of dots in the horizontal (or vertical) direction and the key information value of each resolution is equal for each resolution. Specifically, in the case of 3200 × 2400 (dpi) QUXGA, the horizontal dot number 3200 multiplied by the key information value 100 is 320,000, and in the case of 1600 × 1200 (dpi) UXGA Multiplying the horizontal dot number 1600 and the key information value 200 yields 320,000. Similar results are obtained for resolutions other than these.

  On the other hand, the weight information storage unit 152 has a weight information value table. The weight information value table is composed of resolution information for displaying the resolution of the display and weight information values associated with the resolution information.

  For example, in the key information value table illustrated in FIG. 3, the resolution information VGA is 0.2, SVGA 0.25, XGA 0.32, SXGA 0.4, and UXGA. On the other hand, a value of 0.5 is associated with 1 for QUXGA. These values are determined so that the products of the key information values (FIG. 2) for the same resolution are equal. Specifically, in the case of QUXGA, the product of the key information value 100 (FIG. 2) and the weight information value 1 (FIG. 3) is 100. In the case of UXGA, the key information value 200 and the weight information value 0. The product of 5 is also 100. Similar results are obtained for resolutions other than these. Here, the value 100, which is the product of the key information value and the weight information value for the same resolution, is a value determined so that the object size conversion rate is 100%. This is because no expansion or compression of object data is required between the same resolutions.

  The key information value is used for a display (display source display) on which the original object is displayed, and the weight information value is used for a display (paste destination display) on which the selected object is to be pasted.

  Referring again to FIG. 1, the data buffer unit 153 is provided in the memory 15 of the PC 10. The data buffer unit 153 fetches object data (selected object data) corresponding to the selected object from the object data of the original object from the memory 12 (or 14) and stores it. Further, the data buffer unit 153 stores converted object data obtained from an object size conversion rate and selected object data, which will be described later.

  Further, the PC 10 uses the key information value for the display source display resolution (specifically, the resolution at which the original object or the selected object was displayed) and the weight information value for the display destination display resolution. An arithmetic processing unit 16 that calculates the size conversion rate based on the calculation processing unit 16 is provided. The drivers 11 and 13, the memories 12 and 14, the memory 15, and the arithmetic processing unit 16 are controlled by the controller 18 via the common bus 17.

  The displays 20 and 30 connected to the PC 10 are controlled by the drivers 11 and 13 and display objects based on the object data in the memories 12 and 14 of the PC 10 on the screen. These displays 20 and 30 can display objects at a predetermined resolution depending on the setting. In the present embodiment, for convenience of explanation, it is assumed that the first display 20 displays an object with a resolution of QUXGA (3200 × 2400 dpi), and the second display 30 has a resolution of UXGA (1600 × 1200 dpi). The object shall be displayed.

  Next, the processing operation of the multi-display system 1 according to the first embodiment will be described with reference to FIGS. First, a case where a part of an object displayed on the display 20 with a high resolution (QUXGA) is pasted on the display 30 set to a lower resolution (UXGA) (high → low) will be described. The reverse case (low → high) will be described.

(1) Case of (High → Low) In the following, a user of the multi-display system 1 creates a document with word processor software on the display 30 (UXGA), for example, and displays a photograph image (QUXGA) on the display 20 (QUXGA). Object) is displayed, and a part of the object is inserted into the document by copying and pasting operations.

  First, a part of the object A displayed on the screen of the display 20 (FIG. 5) is partially selected using an input auxiliary device such as a mouse and designated by a copying operation (S1). Here, as schematically shown in FIG. 5, if the object A is an image of a photograph of a flower with a mountain background, and the flower is partially selected, the selected flower image corresponds to the selected object B. To do.

  Object data for displaying the object A is held in the memory 12 in the PC 10. When the selected object B is designated, the object data corresponding to the selected object B is stored in the memory 15 from the object data. Is stored in the data buffer unit 153 (S2).

  Thereafter (or at the same time), the memory 15 acquires resolution information indicating the resolution related to the display 20 from the driver 11 (S3). The resolution information is information regarding which resolution is used to display the object A or the object B selected from now on, and the display 20 in the present embodiment is QUXGA. Next, the key information value table (FIG. 2) stored in the key information storage unit 151 is referred to, and the key information value corresponding to QUXGA is acquired (S4). As shown in FIG. 2, the key information value corresponding to QUXGA is 100, that is, a value of 100 is acquired here.

  The fact that the selected object B is partially selected from the object A displayed on the display 20 can be known from the coordinate position of the pointer whose position is controlled by a mouse or the like. Is determined to be obtained.

  Next, the memory 15 acquires resolution information indicating the resolution of the display 30 (the paste-destination display) to which the selected object B is to be pasted from the driver 13 (S5). This resolution information is information regarding which resolution the display 30 on which the selected object is to be displayed is set, and the display 30 in the present embodiment is UXGA. Next, the weight information table (FIG. 3) stored in the weight information storage unit 152 is referred to, and the weight information value corresponding to UXGA is acquired (S6). As shown in FIG. 3, the weight information value corresponding to UXGA is 0.5, that is, a value of 0.5 is acquired here.

  Note that the fact that the selected object B is about to be pasted on the display 30 can be known from the coordinate position of a pointer whose position is controlled by a mouse or the like, whereby the resolution information of the display 30 should be acquired from the driver 13. I understand that.

  The obtained key information value 100 and weight information value 0.5 are multiplied by each other in the arithmetic processing unit 16, and a value of an object size conversion rate 50 is calculated (S7). This value means that the selected object data is reduced to 50%.

  Thereafter, the selected object data is reduced to 50% based on the object size conversion rate (value 50), and the converted object data obtained in this way is stored in the data buffer unit 153 (S8). Then, the converted object data is transmitted from the data buffer unit 153 to the memory 14 that stores the object data of the object displayed on the screen of the display 30. Thereby, the selected object B partially selected on the screen of the display 20 is displayed on the screen of the display 30 as the object C. As described above, as schematically shown in FIG. 5, the object C is displayed in an appropriate size without protruding from the screen of the display 30.

(2) Case of (Low → High) Next, a case where a part of an object displayed at a low resolution (UXGA) on the display 30 is pasted to the display 20 set at a higher resolution (QUXGA). The difference from the case of (High → Low) will be mainly described.

  First, when a part of an object displayed on the display 30 (FIG. 5) is partially selected by using an input assisting device such as a mouse and designated by a cut operation or a copy operation (S1), it corresponds to the selected object. Object data to be stored is stored in the data buffer unit 153 from the memory 14 (S2).

  Thereafter (or at the same time), the memory 15 acquires resolution information (UXGA) indicating the resolution related to the display 30 from the driver 13 (S3 'in FIG. 5). Next, the key information value table (FIG. 2) stored in the key information storage unit 151 is referred to, and a value of 200, which is a key information value corresponding to UXGA, is acquired (S4 ′ in FIG. 5). That is, the key information value acquired by the memory 15 is always a value for the display that is the display source.

  Next, the memory 15 acquires the resolution information (QUXGA) of the display 20 to which the selected object is pasted from the driver 11 (S5 ′ in FIG. 5). Next, the weight information table (FIG. 3) stored in the weight information storage unit 152 is referred to, and a value of 1 that is a weight information value corresponding to QUXGA is acquired (S6 ′ in FIG. 5). In other words, the weight information value acquired by the memory 15 always acquires the value for the paste destination display.

  As described above, the obtained key information value 200 and weight information value 1 are multiplied by each other in the arithmetic processing unit 16 to calculate a value of the object size conversion rate 200 (S7). This value means that the selected object data is expanded to 200%.

  Thereafter, based on the object size conversion rate (value 200), the selected object data is expanded to 200% to obtain converted object data (S8). Then, the converted object data is transmitted to the memory 12 that stores the object data of the object displayed on the screen of the display 20. As a result, the selected object partially selected on the screen of the display 30 is displayed on the screen of the display 20. Since this object is based on the conversion object data, it is displayed on an appropriate size without being too small on the screen of the display 20.

  As described above, according to the first embodiment, the key information value table is referred to based on the resolution information QUXGA (or UXGA) indicating the resolution of the display 20 (or 30) as the display source, and the key information value 100 ( Or 200), the weight information value table is referred to based on the resolution information UXGA (or QUXGA) indicating the resolution of the display 30 (or 20) to which the selected object is pasted, and the weight information value 0.5 (or 1) ) Can be obtained. Then, the key information value and the weight information value are multiplied, and an object size conversion rate 50% (or 200%) for reducing (or enlarging) the selected object can be determined.

  Next, based on the size conversion rate, the object data of the selected object is compressed (or expanded) to obtain converted object data. Since the selected object is displayed on the paste-destination display 20 (or 30) based on the converted object data, the selected object does not protrude (or is not too small) from the screen of the display 20 (or 30). Displayed in size.

  Therefore, an operation of converting the display size after pasting is not necessary, and convenience can be improved. In addition, since the key information value table and the weight information value table have key information values and weight information values corresponding to various resolutions, no matter what resolution the multiple displays are set to, No extra operation is required to change each information value.

(Second Embodiment)
Next, a multi-display system according to the second embodiment of the present invention will be described. In the drawings to be referred to in the following description, the same components as those in the multi-display system 1 according to the first embodiment are denoted by the same reference numerals, and redundant description is omitted.

  When the multi-display system 2 according to the second embodiment is compared with FIG. 1 in FIG. 6, the multi-display system 2 has substantially the same configuration as the multi-display system 1 according to the first embodiment. Is different in that it has a resolution information storage unit 154 instead of having a key information storage unit 151 and a weight information storage unit 152. Hereinafter, this difference will be mainly described.

  Referring to FIG. 6, the resolution information storage unit 154 has a resolution information table. As illustrated in FIG. 7, the resolution information table includes resolution information about a display source display, resolution information about a pasting destination display, and object size conversion rates associated with these. Referring to FIG. 7, for example, when the resolution of the display source display is QUXGA and the resolution of the pasting destination display is UXGA, the object size conversion rate is 50. This is the same as the value 50 obtained by multiplying the key information value 100 for QUXGA and the weight information value 0.5 for UXGA in the first embodiment. That is, each object size conversion rate in the table illustrated in FIG. 7 can be obtained in the same manner as the key information value and the weight information value in the first embodiment.

  Next, processing operations of the multi-display system 2 according to the second embodiment will be described with reference to FIGS. In the following, it is assumed that a part of an object displayed on the display 20 with a high resolution (QUXGA) is pasted on the display 30 set to a lower resolution (UXGA).

  FIG. 8 is a flowchart showing the processing operation of the multi-display system 2. FIG. 9 is a diagram schematically showing the flow of data and the like on the configuration diagram of the multi-display system 2 shown in FIG. 6, corresponding to the flow diagram of FIG.

  First, a part of the object A displayed on the display 20 (FIG. 9) is partially selected using an input auxiliary device such as a mouse, and the selected object B is designated by a cut operation or a copy operation (S11).

  Object data for displaying the object A is held in the memory 12 in the PC 10. When the selected object B is designated, the object data corresponding to the selected object B is stored in the memory 15 from the object data. Is stored in the data buffer unit 153 (S12).

  Thereafter (or at the same time), the memory 15 acquires the resolution information about the display 20 from the driver 11 (S13), and detects that the display to which the selected object B is pasted is the display 30, the resolution Is obtained from the driver 13 (S14).

  Next, the resolution information table (FIG. 7) stored in the resolution information storage unit 154 is referred to, and the object size conversion rate 50 corresponding to the resolution QUXGA of the display source display 20 and the resolution UXGA of the display destination display 30 is displayed. Is obtained (S15).

  Thereafter, the object size conversion rate value 50 is sent to the data buffer unit 153 in the memory 16. Based on the object size conversion rate, the selected object data is reduced to 50% to obtain converted object data (S16). Thereafter, the converted object data is transmitted to the memory 14 that stores the object data of the object displayed on the screen of the display 30. Thereby, the selected object B is displayed on the screen of the display 30 as an object. As described above, as illustrated in FIG. 9, the object is displayed in an appropriate size without protruding from the screen of the display 30.

  On the contrary, when a part of an object displayed on the display 30 with a low resolution (UXGA) is pasted on the display 20 being displayed with a high resolution (QUXGA), the display 30 of the display source is used. The object size conversion rate 200 corresponding to the resolution UXGA and the resolution QUXGA of the pasted display 20 is acquired. Based on this value, the selected object data corresponding to the selected object is expanded to obtain conversion object data. Since the selected object is displayed on the screen of the display 20 using this data (S17), it is displayed in an appropriate size without being too small.

  As described above, according to the second embodiment, the resolution information QUXGA (or UXGA) indicating the resolution of the display source display 20 (or 30) and the resolution of the display 30 (or 20) to which the selected object is pasted. The resolution information value table is referred to based on the resolution information UXGA (or QUXGA) indicating that the object size conversion rate is 50% (or 200%).

  Next, based on the size conversion rate, the object data related to the selected selection object is compressed (or expanded) to generate conversion object data. And based on this conversion object data, a selection object is displayed on the display 20 (or 30) of a sticking destination. For this reason, the selected object is displayed in an appropriate size without protruding (or not too small) from the screen of the display 20 (or 30).

  Therefore, an operation of converting the display size after pasting is not necessary, and convenience can be improved. In addition, since the resolution information table has object size conversion ratios corresponding to various resolutions, an extra operation is required to change the settings according to the resolution regardless of the resolution set for a plurality of displays. Is not necessary at all.

  While the multi-display system according to the present invention has been described above with reference to some embodiments, the present invention is not limited to these embodiments, and various modifications can be made. For example, in the first and second embodiments, a multi-display in which two displays are connected to a personal computer (PC 10) is illustrated, but it goes without saying that a server may be used instead of the PC 10. Yes.

  The display may be various displays such as a liquid crystal display, a plasma display, and an organic electroluminescence display. In this case, information suitable for the method can be used as resolution information. Furthermore, the number of displays connected to the server or the like is not limited to two, and may be three or more. Even in this case, it is obvious that the weight information only needs to be acquired based on the resolution information indicating the resolution of the display to which the selected object is pasted.

  Further, the key information value and the weight information value are not limited to the values exemplified in the first embodiment, and can be changed as appropriate. Furthermore, it goes without saying that the numerical values in the resolution information table are not limited to those in the second embodiment.

  Furthermore, the selected object is not limited to a part of the original object but may be the entire object, or a part of the object data may be all.

1 is a schematic diagram showing a configuration of a multi-display system according to a first embodiment of the present invention. It is a figure which shows an example of the key information value table of the multi-display system shown in FIG. It is a figure which shows an example of the weight information value table of the multi-display system shown in FIG. It is a flowchart which shows the processing operation of the multi display system shown in FIG. FIG. 5 is a schematic diagram illustrating a configuration diagram of a multi-display system to which a flow of data and the like corresponding to the flowchart of FIG. It is the schematic which shows the structure of the multi display system which concerns on the 2nd Embodiment of this invention. It is a figure which shows an example of the resolution information table of the multi-display system shown in FIG. FIG. 7 is a flowchart showing processing operations of the multi-display system shown in FIG. 6. It is the schematic which shows the structure of the multi-display system which added the flow of data etc. corresponding to the flowchart of FIG.

Explanation of symbols

1, 2 ... Multi-display system 10 ... Personal computer 11,13 ... Driver 12,14 ... Memory (VRAM)
DESCRIPTION OF SYMBOLS 15 ... Memory 16 ... Arithmetic processing part 18 ... Controller 151 ... Key information storage part 152 ... Weight information storage part 153 ... Data buffer part 154 ... Resolution information storage part

Claims (4)

A storage unit that stores data of a selected object that is partially selected from objects displayed on the first display;
In order to convert the size of the selected object based on the first resolution information indicating the display resolution of the first display and the second resolution information indicating the display resolution of the second display for displaying the selected object. Determining means for determining the object size conversion rate of
Conversion means for converting the data based on the object size conversion rate to generate conversion data;
Display means for displaying the selected object on the second display using the conversion data;
A multi-display system comprising: A key information value table composed of the first resolution information and a key information value associated with the first resolution information;
A weight information value table composed of the second resolution information and weight information values associated with the second resolution information;
Further comprising
The determining means acquires the key information value from the key information value table, acquires the weight information value from the weight information value table, and determines the object size conversion rate based on these values. The multi-display system according to claim 1. An object size conversion rate table that associates the first resolution information with the second resolution information;
The multi-display system according to claim 1, wherein the determination unit determines the object size conversion rate from the conversion rate table based on the first and second resolution information. A storage unit for storing data of a selected object partially selected from objects displayed at the first display resolution;
A size conversion rate for converting the size of the data is determined based on first resolution information indicating the first display resolution and second resolution information indicating the display resolution at which the selected object is displayed. A decision means to
Conversion means for converting the data based on the size conversion rate to obtain converted data;
Display means for displaying the selected object using the converted data;
A computer comprising:

Images