US Patent 10241739 Screen sharing system and method for sharing screen

The present invention is to provide a screen sharing system and a method for sharing a screen which improve the convenience by changing screen data in a part of the display area of the shared screen in screen sharing. The system for screen a sharing 1 with a destination terminal 200 receives a specified area and an operation of a predetermined area or detects a moving area in a shared area where a screen is shared with the destination terminal 200; transmits request data to request a change of the received specified area and of the area corresponding to the received operation or the detected area to the destination terminal 200; receives response data responding to the request from the destination terminal 200; and changes and displays the specified area and the area corresponding to the received operation or the detected area based on the received response data.