Quality is, in my mind, always a matter of concern with most products these days.
Especially "discounted" or "on sale" stuff. Just do some additional research on the seller to be sure there are no recent problems.
Good companies go bad: bought by another company, owners get greedy, company grows too fast and cannot manage itself efficiently.... Or just has some bad luck.
As for screen types, you should do some research on the trade-offs involved and your requirements for the laptop. E.g., Clear sharp screen but faster battery power consumption perhaps.
And be careful about the terminology. Some manufacturer's create their own terminology (aka "marketing speak") that often stretches or blurs the real specifications.
Fine...