Article] Will HDR kill your OLED TV?

[bruce2...@gmail.com]

On 2018-06-27 22:33:46 +0000, Your Name said:

> Will HDR kill your OLED TV?
> ---------------------------
> HDR requires greater brightness, so will that shorten
> the lifespan of OLEDs?
>
> I love the picture you get from an OLED TV. It reminds
> me of the paintings on black velvet that I used to see
> at roadside stands in the 1970s. Don't get me wrong,
> there are some excellent LCD TVs out there, especially
> those employing quantum dots, but that's a topic for
> another time - along with LCD lifespans.
>
> The story here is that my infatuation with OLED is
> mitigated by the fact that OLED elements, being
> organic after a fashion, have a lifespan. HDR will
> reduce said lifespan, though by how much, vendors
> aren't saying. Fortunately, other folks in the
> business were willing to talk.
>
> Long article continues at
> <https://www.techconnect.com/article/3239350/smart-tv/will-hdr-kill-your-oled-tv.html>
>
> The author's basic conclusion is yes, HDR does shorten the life of an
> OLED TV quite considerably (his rough calculation out it as going from
> 100,000 hours down to 25,000 hours).

You have to wonder where the already-shorted-out TVs are, for example.

[John-Del]

From the article: "I wouldn’t worry too much even if I was an average viewer, someone who watches nearly five hours of TV per day. Addicts and others who need a 24/7 TV, however, should probably stick with LED-backlit LCD.'

Bad advice. LED backlit TVs have a lifespan measured in hundreds of hours, not thousands in many cases. I've done close to a thousand LED jobs over the last few years. Modifying the current source afterwards is critical to prevent comebacks. These TVs run the LEDs beyond their safe rating in order to make them "pop" at Walmart. The original CCFL LCD TVs lasted many tens of thousands of hours.

[~misfit~]

At least I'll know where to get advice if / when my Samsung LED-lit LCD has
trouble before I want to replace it.

I'd love an OLED TV (my phone screen is awesome!) but it's not an option on
my budget.
--
Shaun.

"Humans will have advanced a long, long way when religious belief has a cozy
little classification in the DSM*."
David Melville (in r.a.s.f1)
(*Diagnostic and Statistical Manual of Mental Disorders)

[John-Del]

I did a Samsung 40" yesterday that had only 3 LEDs out of almost 50 still lit.. If you're serious about extending the life of your TV, here's what you can do without a circuit current reduction mod:

Watch a normally bright program (not some weird, dark, vintage movie) and lower the back light adjustment in the video menu to it's lowest possible setting. Watch the TV this way for 10 full minutes to acclimate yourself. Go back into the video menu and raise the backlight slowly until the picture just reaches an accurate and normally bright picture instead of the cartoonishly garish picture it had before.

You'll probably find the setting is almost half of where it was. If you've had no LED damage up until now you will most likely extend the life of the LED array by tenfold, and your TV will probably have much better black level as well (assuming it's a globally lit array)

[~misfit~]

Thanks, I am. I'm on an invalid's benefit and am happy with my UA32D5000PM,
I see no need to replace it in the near future. The picture is pretty good
and it's just the right size for where it is.

> Watch a normally bright program (not some weird, dark, vintage movie)
> and lower the back light adjustment in the video menu to it's lowest
> possible setting. Watch the TV this way for 10 full minutes to
> acclimate yourself. Go back into the video menu and raise the
> backlight slowly until the picture just reaches an accurate and
> normally bright picture instead of the cartoonishly garish picture it
> had before.
>
> You'll probably find the setting is almost half of where it was. If
> you've had no LED damage up until now you will most likely extend the
> life of the LED array by tenfold, and your TV will probably have much
> better black level as well (assuming it's a globally lit array)

Thanks for that, I'll have a play with it this evening. I seem to remember
I've already got the backlight level set down a bit (having played with LEDs
for years, knowing what I know...). Also I hate 'default' colour settings on
TVs so modified all of the settings extensively when I first got it.

Cheers,