Originally Posted by Beeper
Samsung's LED marketing is definitely confusing a lot of people, including salespersons.
Here you are comparing two different things.
If FocaLight (Backlit LED) is the smart type, then fluorescent
would have been the dumb type.
No, the context here is the two types of LED powered backlighting
: edge and local dimming.
Whatever marketing term Toshiba has developed is irrelevant since it can be switched off. Samsung (in their arrogance,) provided no such capability even though the cost is zero (adding a menu item).
Only solid-state LED lighting can be switched on/off dynamically
to change intensity between frames. The all-important limitation is that edge lit LED's are all switched on/off together. The is only one zone - the entire screen.
(Over in the the front projector dynamic iris pumping was exposed years ago. High-end projectors omit it. Except if you lag in technology, namely Sony. Now, even Home Theater comments that dynamic iris projectors lack punch in mixed-content scenes.)
True local dimming divides the screen up into scores or hundreds of zones which are largely independent of each other. One area of the screen can be 100% white while the other can simultaneously be true 0% black.
Edge lit LED displays, under the same circumstances may only be 70% white with its real native black level
exposed. This deliberate picture distortion, would result in a picture that lacks real-world punch (like plasma?). Further 2,000,000:1 contrast ratios for edge-lit displays are misleading at best.
Traditional fluorescent intensity stays constant between frames and is outside the scope of this discussion. Except (both embarrassingly and humorously,) Cnet tested and rated the black level of B750 fluorescent display higher than the gimmick black level of the 6000/7000/8000. If Toshiba added some new gimmick feature (DynaLight), then shame on them.
My recommendation is either the B650 (if size is important), B750 or the new 9000 if you have the budget.
Who wants to bet that Consumer Reports will rate the improved B650 as best?