DEVICE AND METHOD OF DISPLAY EXTENSION FOR TELEVISION BY UTILIZING EXTERNAL PROJECTION APPARATUS

摘要

The present invention relates to a device and a method for extending a television screen using an external projector. The device for extending a television screen includes: a remote input unit which, as a signal input device, controls the display of additional information except for broadcast screen and broadcast; an information processing unit which receives a signal from the remote input unit and processes the signal by converting the signal into visual information; and a display output unit which displays broadcast and the additional information using the visual information converted from the signal. [Reference numerals] (110) Remote input unit; (120) Information processing unit; (130) Display output unit; (131) Screen of a television receiver; (132) Projector; (AA) Audio broadcast signal; (BB) Internet