Backlite in LED TVs are a set of LED light bulbs to shine thru the panel of LCD where the electro-generated pictures are moving that can be barely visible without backlighting... How can that be possible to be noticeable to users that it causes disturbance? Unless...U have a cracked back cover of a TV where that causes the leak of lights...
I got a motorized 110" screen from Alf. It is still working since 2012.
I suggest you give BenQ Projector a shot. Especially the 2700W and the recently launched 5700W. All value for money with generous warranty. Check with Alf who is the distributor of BenQ projectors in this forum. Sent from my iPhone using Tapatalk