FIELD: handheld devices with display; information viewing.
SUBSTANCE: in response to changes of tilt angle of device part of page containing information is changed. The named page lies on a virtual surface in co-ordinates system and every page point has a certain location in co-ordinates system. Initially display surface is oriented against virtual surface so that line of support perpendicular to monument point on display surface and starting from some monument point touches the page containing information in defined point. Part of page around defined point is displayed and in response to handheld device tilt mirror line is created by mirror reflection of support line against line perpendicular to display surface and passing through monumental point. Mirror line virtual surface contact point is defined and a part around contact point is displayed. Also handheld device for viewing information is declared.
EFFECT: improved image adjustment.
24 cl, 20 dwg
