They help you see fine displays (10)
I believe the answer is:
spectacles
'displays' is the definition.
(I know this)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for spectacles that I've seen before include "With which to view" , "Viewing aid" , "shows?" , "See 6" , "What would make some people see better" .)