I seem to recall that there was a problem with overheating and differing
efficiencies and light vs current curves of the colours. Also the colours
may look right but often were not.
I don't know what the likes of Sony are doing but I guess it depends on
I would not say they are any worse or better than others, but sadly in
today's market the makers do tend to cut corners, and depending on which
corners get cut it affects life.
Samsung tend to suffer with cheap capacitors, Sony often don't test
enough, this particularly shows in mechanical rigidity, and firmware cock
ups. Panasonic expensive gear seems very good, but it looks like the cheaper
end are badge engineered off the shelf products.
Large TV sets are on offer with OLED technology. 55 inch, 65 inch, prices to match.
There are a limited number of OLED substrate suppliers. It appears
the materials are modular enough, to scale up the design.
There are different types as well. QD is Quantum Dot.
"Quantum dots have properties intermediate between bulk semiconductors and
discrete atoms or molecules. Their optoelectronic properties change as a
function of both size and shape"
"Another pain-point for LG will be that Samsung's QD-OLED will
actually use the "problematic" blue pixel as its light source and
use red and green QD colour filters that in theory, decrease the
chance of burn-in. If Samsung's QD-OLED is able to achieve this,
and avoid burn-in, the panels will actually be able to show
"true colours" as it will not use white pixel filters."
It appears the writers of these articles have taken a few
too many "drama classes" in school.
People still use that system? Even Sky TV in the UK is considering moving to internet only. So many advantages, like being able to watch anything at any time you like.
When most people have a 4K or better TV, any station broadcasting 4K will get all the customers.
Sadly that is probably true, whether or not those stations are the ones
broadcasting the programmes that people want to watch. It's the equivalent
of saying (as I remember people saying when colour TV began, though not in
these words) "I'd rather watch crap in colour than a decent programme in
black and white".