LG 37LC5DCB Owner's Manual page 46

PICTURE CONTROL
Horizon
The screen size is, more enlarged at both sides, to create a spectacular view.
Zoom 1
Choose Zoom 1 when you want to view the picture without any alteration. However, the top and bottom portions
of the picture will be cropped.
Zoom 2
Choose Zoom 2 when you want the picture to be altered, both vertically extended and cropped. The pic-
ture taking a halfway trade off between alteration and screen coverage.
44
Horizon
Zoom 1
Zoom 2