Please adjust the projector settings to enjoy a full-screen projection by following below steps:(1) Use a projector screen in 16:9 with 4-side black masking. Make sure the projected image is fully expanded to make the full usage of the display screen.
(2) Project a 120" + image.
(3) Set the lamp mode to "SmartEco".
For more information, please refer to BenQ website:
https://www.benq.com/en-eu/projector/cinehome-home-cinema