Wacom AES (pen + charging silo) Utility to vary CPU voltage up to 25W from default 15W. 1080p 400-nit glossy (LG LP140WF9-SPE2) pwm = 0 (notebookcheck) Lenovo uses 1080p displays from multiple suppliers, so beware. 3840p 500-nit glossy HDR (supplier?) pwm = ? The 3840p 500-nit glossy HDR in the S940 is the AUO B140ZAN01.3, and it also has pwm = 0. After browsing through the list of Lenovo displays laptopmedia.com has made, I think that's the only 3840p 14" display Lenovo uses. Note, however, that laptopmedia measured it at 445 nits, while notebookcheck measured it at 536. Update: PWM is determined not by the display's panel, but by its controller, so to select a display without PWM, it's not enough to determine the part number of the panel.