OnePlus 12 vs 12R single-pulse PWM rate
Using the single-pulse EM mode on both phones reveals some interesting differences. Both use 2,160Hz PWM at low brightness but there's a clear difference in how the DC-like dimming mode at higher brightness works. OnePlus 12 looks to refresh at 280Hz (2.3x pulse per duty cycle) while the OnePlus 12R is a more typical "DC-like" one pulse per duty cycle 120Hz.