TCL TV calibration.

That is a choice only you can make.
With FALD displays there is no right/wrong option.
But, as the various user guides do state, most FALD displays should use a full screen patch size.
But again, that is not a right/wrong decision.

Steve

But would that not limit the peak brightness of the display or does that not matter. What approach did you use with your TCL.

Unfortunately, that is all part of the issue with any display with any type of power limiting ABL.
(As is demanded by many countries now to reduce power consumption.)
So again, there is no single answer.
You really need test to define what works best for you, based on the specific ABL operation of your display.
And unfortunately when that display with ABL type operation is a FALD, you have more issues to overcome...

Steve

Ok thanks for your advice.