LG SIGNATURE R User Manual page 129

4096 × 2160p
4096 × 2160p 1) 2)
1) Supported when
2) Only some HDMI input ports are supported.
Supported Resolution : HDMI-PC
HDMI-PC Supported Mode
270
53.94
54
56.25
67.43
67.5
112.5
134.86
135
225
269.73
270
HDMI Deep Color is set to 4K.
129
120
23.97
24
25
29.97
30
50
59.94
60
100
119.88
120