AUTOMATIC CONTROLLING DEVICE OF SCREEN AND SOUND LEVEL ACCORDING TO POSITION OF VIEWER

摘要

PURPOSE: An automatic screen and sound level controller is provided to offer convenience all the time by maintaining the best watching condition for the viewers. CONSTITUTION: A screen and sound level controller comprises: a sensor part(10) to sense the existence of a viewer and the distance between a viewer and an image equipment; a control part(20) to detect the existence of a viewer by input with an output signal of the sensor part and to output a control signal to control the size of a screen according to the distance after detecting the distance if a viewer exists; and a screen size control part(30) to control the size of a screen according to the control signal of the control part(20).