US Patent No. 9,933,987

MULTI-DISPLAY SYSTEM


Patent No. 9,933,987
Issue Date April 03, 2018
Title Multi-display System
Inventorship Yasunobu Kaneko, Tokyo (JP)
Assignee NEC DISPLAY SOLUTIONS, LTD., Tokyo (JP)

Claim of US Patent No. 9,933,987

1. A multi-display system comprising:a plurality of display apparatuses that divide one picture represented by a picture signal output from a picture output device into a plurality of partial pictures and display the respective partial pictures,
wherein a display apparatus of the plurality of display apparatuses comprises:
a display section that displays a picture,
an operation input section that accepts an instruction input,
a communication section that sends and receives information between the plurality of display apparatuses, and
a control section that controls operation of said display section and said communication section in response to an input to said operation input section, and
wherein said control section:
sends picture position information including a first picture position corresponding to a currently displayed partial picture to at least the display apparatus displaying the partial picture corresponding to a second picture position via said communication section when the control section is instructed to change the picture position and is notified about the second picture position via said operation input section,
causes the display section to display the partial picture corresponding to the second picture position,
sends a request for change of a partial picture to be displayed to one of the display apparatuses together with the second picture position and the first picture position and then causes the display section to display the partial picture corresponding to the second picture position when the control section is instructed to change the picture position and is notified about the second picture position via said operation input section,
judges whether a third picture position sent together with a request for change of the picture position corresponds to the first picture position, when the control section receives the request for change from a different one of the display apparatuses via said communication section, and
displays the partial picture corresponding to a fourth picture position set in the different one of the display apparatuses if the third picture position corresponds to the first picture position.