LG 24BP750C Owner's Manual page 17

Input
Settings > Input
Input List selects the input mode.
adjusts the aspect ratio of the screen.
full Wide
aspect Ratio original
NoTE
• The display may look the same for full Wide and original options at the recommended resolution. (1920 x 1080)
Displays the video in widescreen, regardless of the video signal input.
Displays video according to the aspect ratio of the video signal input.
Description
17