LG 27GK750F Owner's Manual page 34

34
settings > Input
Input list
Input
aspect Ratio
selects the input mode.
adjusts the aspect ratio of the screen.
full Wide Displays the video in widescreen, regardless of the video signal input.
original Displays video according to the aspect ratio of the video signal input.
1:1
The aspect ratio is not adjusted from the original.
noTe
The display may look the same for full Wide, original, and 1:1 options at the recommended resolution. (1920 x 1080)
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There is no 1:1 menu on freesync Mode. ( Go to Picture → Game adjust → freesync, to set freesync on or off)
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Description