Display system, display method, and display program

Abstract

Enlarged display of part of display data on display by a first display section is performed to a second display section, based on a relative position of the second display section with respect to the first display section. A display system has a first display section that displays display data; a second display section that performs enlarged display of part of the display data on display by the first display section; a display partial area storage section that stores an area of the partial data to be displayed to the second display section that is part of the display data on display by the first display section; a relative position determination section that determines a relative positional relation between the first display section and the second display section; and a display control section that performs enlarged display of at least part of the partial data of the area stored.

1 . A display system comprising:
 a first display section that displays display data;   a second display section that displays partial data of the display data or adjacent document data adjacent to the display data;   a position determination section that determines a positional relation between the first display section and the second display section; and   a display control section that causes one of the partial data and the adjacent document data to be selectively displayed to the second display section, according to the positional relation determined by the position determination section, wherein   when the positional relation determined by the position determination section is a held-up relation which indicates that the second display section is held above away from a display surface of the first display section, the display control section causes the partial data to be displayed to the second display section by either enlarging or reducing a size of the partial data,   the display control section causes the partial data to be displayed to the second display section by either enlarging or reducing the size of the partial data, according to a distance between the first display section and the second display section in the held-up relation, and   an enlargement factor is changed according to the distance between the first display section and the second display section in the held-up relation.   
     
     
         2 . The display system as set forth in  claim 1 , wherein
 when the positional relation determined by the position determination section is an overlapping relation which indicates that the second display section is overlapped to the first display section, the display control section performs enlarged display of the partial data to the second display section.   
     
     
         3 . The display system as set forth in  claim 2 , wherein
 the partial data of which enlarged display is performed to the second display section is part of the display data that is displayed in an area of the first display section to which the second display section is overlapped.   
     
     
         4 . The display system as set forth in  claim 3 , wherein
 when the second display section is moved by being overlapped to the first display section from a position corresponding to an upper edge of the display data to a position corresponding to a lower edge of the display data, the display control section causes the display data to be displayed to the second display section by sequentially enlarging the display data from the upper edge to the lower edge.   
     
     
         5 . The display system as set forth in  claim 1 , wherein
 when the positional relation determined by the position determination section is an adjacent relation which indicates that the second display section is placed adjacent to the first display section, the display control section performs enlarged display of the partial data to the second display section.   
     
     
         6 . The display system as set forth in  claim 5 , wherein
 the partial data of which enlarged display is performed to the second display section is part of the display data that is displayed in a co-existing area in which both of the first display section and the second display section exist in a first direction that is along a predetermined side of the first display section.   
     
     
         7 . The display system as set forth in  claim 6 , wherein
 when the co-existing area is moved from a position corresponding to an upper edge of the display data to a position corresponding to a lower edge of the display data, the display control section causes the display data to be displayed to the second display section by sequentially enlarging the display data from the upper edge to the lower edge.   
     
     
         8 . The display system as set forth in  claim 1 , wherein
 when the positional relation determined by the position determination section is an adjacent relation which indicates that the second display section is placed adjacent to the first display section, the display control section causes the adjacent document data to be displayed to the second display section.   
     
     
         9 . The display system as set forth in  claim 1 , wherein
 when the positional relation determined by the position determination section is a same-directional relation which indicates that the second display section is placed in the same direction as a direction of the first display section, the display control section causes the adjacent document data to be displayed to the second display section.   
     
     
         10 . The display system as set forth in  claim 1 , wherein
 when the positional relation determined by the position determination section is a different-directional relation which indicates that the second display section is placed in a different direction from a direction of the first display section, the display control section performs enlarged display of the partial data to the second display section.   
     
     
         11 . The display system as set forth in  claim 1 , wherein
 the display control section changes a direction of a line of vision or a rotation angle of the partial data in case of displaying the partial data as a stereoscopic image, according to an angle formed between a plane to which the first display section belongs and a plane to which the second display section belongs in the held-up relation, and causes the partial data of which the direction of the line of vision or the rotation angle has been changed, to be displayed to the second display section.   
     
     
         12 . The display system as set forth in  claim 1 , further comprising:
 a data type determination section that determines a type of the display data, wherein   the display control section causes either the partial data or the adjacent document data to be displayed to the second display section, according to the data type determined by the data type determination section.   
     
     
         13 . The display system as set forth in  claim 12 , wherein
 when the data type determined by the data type determination section is a document type, the display control section causes either a previous page or a subsequent page of a document page on display as the display data, to be displayed to the second display section, according to the positional relation.   
     
     
         14 . The display system as set forth in  claim 12 , wherein
 when the data type determined by the data type determination section is an image type, the display control section changes a line of vision or a rotation angle of a stereoscopic image on display as the display data, according to the positional relation, and causes the stereoscopic image of which the direction of the line of vision or the rotation angle has been changed, to be displayed to the second display section.   
     
     
         15 . The display system as set forth in  claim 1 , further comprising:
 a display activation section that generates a display activation signal indicating activation of display processing for the display data, wherein   the position determination section determines a display-activation-time positional relation that is a positional relation between the first display section and the second display section at a time of receiving the display activation signal, and   the display control section having received the display activation signal causes, to be displayed to the first display section, partial data or adjacent document data of the partial data or the adjacent document data on display by the second display section, according to the display-activation-time positional relation.   
     
     
         16 . The display system as set forth in  claim 15 , further comprising:
 a switch that detects an operation of a user; wherein   the display activation section generates the display activation signal by detecting the switch operation.   
     
     
         17 . The display system as set forth in  claim 15 , wherein
 the second display section includes a light detection section, and   the display activation section generates the display activation signal by detecting that an intensity of light detected by the light detection section is lowered to a predetermined value.   
     
     
         18 . The display system as set forth in  claim 15 , wherein
 the first display section includes a first timer section that is reset when the first display section is placed in a predetermined place,   the second display section includes a second timer section that is reset when the second display section is placed to a predetermined place, and   the display activation section generates the display activation signal by detecting that a count number of the first timer section becomes smaller compared to a count number of the second timer section.   
     
     
         19 . The display system as set forth in  claim 15 , further comprising:
 a power feeder apparatus that supplies power at least to the first display section, wherein   the display activation section generates the display activation signal by detecting starting of power supply from the power feeder apparatus to the first display section.   
     
     
         20 . The display system as set forth in  claim 1 , further comprising:
 a plurality of signal transmission sections that respectively transmit an identification signal that identifies from which position of which display section a signal comes from, by being placed in one or both of the first display section and the second display section; and   a plurality of signal reception sections that receive each identification signal transmitted from the plurality of signal transmission sections, by being placed in the other or both of the first display section and the second display section, wherein   the position determination section specifies positions of the signal transmission sections that have transmitted the identification signals, from positions of the plurality of signal reception sections in the first display section or the second display section and from strengths of the identification signals received by the signal reception sections in the positions of the plurality of signal reception sections, and using, as a reference, the other or both of the first display section and the second display section in which the plurality of signal reception sections are displayed, and   determines a positional relation between the first display section and the second display section, from the specified positions of the signal transmission sections and the positions of the signal transmission sections in the first display section or the second display section.   
     
     
         21 . The display system as set forth in  claim 1 , further comprising:
 a plurality of light detection sections placed either in the first display section or the second display section, wherein   the position determination section determines the positional relation between the first display section and the second display section from positions of the plurality of light detection sections in the first display section or the second display section, and intensities of light detected by each of the plurality of light detection sections.   
     
     
         22 . The display system as set forth in  claim 1 , further comprising:
 a position identifying section that identifies positions of the first display section and the second display section, wherein   the position determination section determines the positional relation between the first display section and the second display section, from the positions of the first display section and the second display section identified by the position identifying section.   
     
     
         23 . A display method comprising:
 a first display step of displaying display data to a first display section;   a position determination step of determining a positional relation between a second display section displaying partial data of the display data or adjacent document data adjacent to the display data, and the first display section, and   a second display step of selectively displaying one of the partial data and the adjacent document data to the second display section, according to the positional relation determined in the position determination step, wherein   when the positional relation determined by the position determination step is a held-up relation which indicates that the second display section is held above away from a display surface of the first display section, the partial data is displayed on the second display section by either enlarging or reducing a size of the partial data,   the partial data is displayed on the second display section by either enlarging or reducing the size of the partial data, according to a distance between the first display section and the second display section in the held-up relation, and   an enlargement factor is changed according to the distance between the first display section and the second display section in the held-up relation.   
     
     
         24 . A display program for a display system that displays, to a second display section, partial data of display data on display by a first display section or adjacent document data adjacent to the display data, the display program causing the display system to function as:
 a position determination section that determines a positional relation between the first display section and the second display section; and   a display control section that causes one of the partial data and the adjacent document data to be selectively displayed to the second display section, according to the positional relation determined by the position determination section, wherein   when the positional relation determined by the position determination section is a held-up relation which indicates that the second display section is held above away from a display surface of the first display section, the display control section causes the partial data to be displayed to the second display section by either enlarging or reducing a size of the partial data,   the display control section causes the partial data to be displayed to the second display section by either enlarging or reducing the size of the partial data, according to a distance between the first display section and the second display section in the held-up relation, and   an enlargement factor is changed according to the distance between the first display section and the second display section in the held-up relation.   
     
     
         25 . A display system comprising:
 a first display section that displays first display data;   a second display section that displays second display data that is either partial data of the first display data or adjacent data adjacent to the first display data;   a third display section that displays third display data;   a position determination section that determines a relative positional relation among the first display section, the second display section, and the third display section; and   a display control section that causes one of partial data of the second display data and adjacent data adjacent to the second display data to be selectively displayed to the third display section as the third display data, according to the positional relation among the first display section, the second display section, and the third display section determined by the position determination section, wherein   when the positional relation determined by the position determination section is a held-up relation which indicates that the second display section is held above away from a display surface of the first display section, the display control section causes the partial data to be displayed to the second display section by either enlarging or reducing a size of the partial data,   the display control section causes the partial data to be displayed to the second display section by either enlarging or reducing the size of the partial data, according to a distance between the first display section and the second display section in the held-up relation, and   an enlargement factor is changed according to the distance between the first display section and the second display section in the held-up relation.   
     
     
         26 . The display system as set forth in  claim 25 , wherein
 when the positional relation determined by the position determination section is a same-directional relation which indicates that the third display section is placed in the same direction as a direction of the first display section and the second display section, the display control section causes the adjacent data adjacent to the second display data to be displayed to the third display section as the third display data.   
     
     
         27 . The display system as set forth in  claim 25 , wherein
 when the positional relation determined by the position determination section is a different-directional relation which indicates that the third display section is placed in a different direction from a direction of the first display section and the second display section, the display control section causes the first display data and the second display data to be displayed to the third display section as the third display data in a reduced size.   
     
     
         28 . The display system as set forth in  claim 25 , wherein
 when the positional relation determined by the position determination section is an adjacent relation which indicates that the third display section is placed adjacent to the first display section and the second display section, the display control section causes the adjacent data adjacent to the first data or the adjacent data, to be displayed to the third display section as the third display data.   
     
     
         29 . The display system as set forth in  claim 25 , wherein
 when the positional relation determined by the position determination section is an overlapping relation which indicates that the third display section is overlapped to the first display section or the second display section, the display control section causes the first display data and the second display data to be displayed to the third display section as the third display data in a reduced size.   
     
     
         30 . The display system as set forth in  claim 25 , further comprising:
 a plurality of signal transmission sections that respectively transmit an identification signal that identifies from which position a signal comes from, by being placed in the third display section; and   a plurality of signal reception sections that receive each identification signal transmitted from the plurality of signal transmission sections, by being placed in the first display section or the second display section, wherein   the position determination section specifies positions of the signal transmission sections that have transmitted the identification signals, from positions of the plurality of signal reception sections in the first display section or the second display section and from strengths of the identification signals received by the signal reception sections in the positions of the plurality of signal reception sections, and using, as a reference, the first display section or the second display section in which the plurality of signal reception sections are placed, and   determines a positional relation between either the first display section or the second display section and the third display section, from the specified positions of the signal transmission sections and the positions of the signal transmission sections in the third display section.   
     
     
         31 . The display system as set forth in  claim 25 , further comprising:
 a plurality of light detection sections placed in either the first display section or the second display section, wherein   the position determination section determines a positional relation between either the first display section or the second display section and the third display section, from positions of the plurality of light detection sections in the first display section or in the second display section, and from an intensity of light detected by each of the plurality of light detection sections.   
     
     
         32 . The display system as set forth in  claim 25 , further comprising:
 a position identifying section that identifies positions of the first display section, the second display section, and the third display section, wherein   the position determination section determines the positional relation among the first display section, the second display section, and the third display section, from the positions of the first display section, the second display section, and the third display section determined by the position identifying section.   
     
     
         33 . A display method comprising:
 a first display step of displaying first display data to a first display section;   a second display step of displaying partial data of the first display data or adjacent data adjacent to the first display data to a second display section as second display data;   a position determination step of determining a positional relation between a third display section and either the first display section or the second display section, the third display section selectively displaying one of partial data either of the first display data or of the second display data, and adjacent data adjacent either to the first display data or to the second display data, as the third display data; and   a third display step of displaying the third display data to the third display section according to the positional relation determined in the position determination step, wherein   when the positional relation determined by the position determination step is a held-up relation which indicates that the second display section is held above away from a display surface of the first display section, the partial data is displayed on the second display section by either enlarging or reducing a size of the partial data,   the partial data is displayed on the second display section by either enlarging or reducing the size of the partial data, according to a distance between the first display section and the second display section in the held-up relation, and   an enlargement factor is changed according to the distance between the first display section and the second display section in the held-up relation.   
     
     
         34 . A display program for a display system that selectively displays, to a third display section, one of partial data either of the first display data on display by a first display section or of the second display data on display by a second display section, and adjacent data adjacent either to the first display data or to the second display data, as the third display data, the display program causing the display system to function as:
 a position determination section that determines a positional relation between either the first display section or the second display section and the third display section; and   a display control section that causes the third display data to be displayed to the third display section according to the positional relation determined by the position determination section, wherein   when the positional relation determined by the position determination section is a held-up relation which indicates that the second display section is held above away from a display surface of the first display section, the display control section causes the partial data to be displayed to the second display section by either enlarging or reducing a size of the partial data,   the display control section causes the partial data to be displayed to the second display section by either enlarging or reducing the size of the partial data, according to a distance between the first display section and the second display section in the held-up relation, and   an enlargement factor is changed according to the distance between the first display section and the second display section in the held-up relation.