My conversation with Lenovo:
Andersson Steve M.: Hello, thanks for contacting Lenovo Sales. My name is Andersson Steve M. (Rep ID: 2900729623). At the conclusion of this chat, there will be a brief, two-question survey, scoring from 1-10 where 10 is the best. Please be sure to ask about our flexible payment options!
Me: need c940 14" info
Andersson Steve M.: Welcome to Sales Chat Department. How can I assist you with your purchase today?
Me: 5 displays available?
Andersson Steve M.: Yes
Me: do any use pwm?
Andersson Steve M.: all of them
Me: notebookcheck says the 1080p glossy does not
Andersson Steve M.: Well, that is the information I have about displays
Me: i'm not even sure what it means. What does pwm mean?
Andersson Steve M.: Pulse-width modulation
Me: is that good or bad?
Andersson Steve M.: That is good because it improve the resolution and avoid you headache
Me: Have a nice day!
Note the level of English: ...it improve the resolution and avoid you headache
I was going to ask about whether the anti-glare was an etching or a coating, but after Steve's dissertation on PWM, I decided not to ask. I think it's just the Gorilla glass. Anybody have a better idea about that?