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Why do backlight LEDs burn out and go blue?
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eti:
Consumers are far too pampered and demanding, and I find people get overly obsessed with specs, display technologies etc, having swallowed and digested the marketing garbage, hook line and sinker. 😁

Quit the pixel peeping and just enjoy what you’ve got. The novelty of a new toy and all the things it can do, fade away and soon are forgotten once it transitions from “MY NEW TV!” into just “My TV”. I find this carries across the entire line of consumer gadgets too. Just use the thing and enjoy it - I don’t ever remember thinking “😱 Oh no! My blacks are too bright - it’s ruined my film - how can I possibly enjoy it now?!”

Reminds me of when my neighbour came back from the cinema, having watched a 3D film - he was extolling the virtues of how amazing it all was, how it jumped out at you, on and on… I said “yea that’s amazing but was the story any good?” - he was fixated on the novelty factor. In a similar vein, my Panasonic plasma isn’t even 720p, and yet it performs incredibly, and I never even think about that.
PlainName:

--- Quote ---In a similar vein, my Panasonic plasma isn’t even 720p
--- End quote ---

Is it colour?


--- Quote --- he was extolling the virtues of how amazing it all was, how it jumped out at you, on and on… I said “yea that’s amazing but was the story any good?”
--- End quote ---

So you'd be OK watching stuff in B&W? I'm betting when colour TVs first came out there was someone asking, yeah but was the story any good?
Cerebus:

--- Quote from: dunkemhigh on November 12, 2021, 12:59:09 pm ---So you'd be OK watching stuff in B&W? I'm betting when colour TVs first came out there was someone asking, yeah but was the story any good?

--- End quote ---

I (voluntarily) carried on watching TV in B&W into the 1990s. I rarely felt I missed out on anything without colour and with analogue SD the fact that the luminance signal had over twice the bandwidth of the chrominance signal meant that B&W was considerably crisper than colour. When you've only got at most 704 pixels in a line you need all the resolution you can get.
PlainName:

--- Quote ---When you've only got at most 704 pixels in a line
--- End quote ---

But eti doesn't care about resolution...

I think all this shows is that different people have different appreciation of features. Resolution vs colour vs frame rate vs 3D vs power vs adverts vs ... well, there are lots of things you can trade off and we decide the balance that would suit us. Seems a bit silly to deride the choice of others when one has made one's own off-the-curve choice.
macboy:

--- Quote from: bdunham7 on November 11, 2021, 06:08:37 pm ---
--- Quote from: wraper on November 11, 2021, 05:59:06 pm ---If he had manually ran compensation cycle, most likely those issues would be gone.

--- End quote ---

I've seen no success with screen-burn reduction apps in other devices--is there something special about the compensation cycle in an LG OLED?  Does it know somehow which pixels are weak?  Does it store calibration data?

--- End quote ---
Yes, it is special.
LG engineers determined that the forward voltage of the individual OLED pixels changes predictably with wear. So if you can measure the forward voltage, you know the state of that pixel and compensate. The modern OLED TV panels are engineered with a substantial headroom in maximum brightness output. As the each pixel ages, the TV applies compensation to boost the output to match original specifications. Eventually of course, it will run out of headroom and won't be able to boost some pixels any further, at which time light output will decrease and burn in will begin to show up. I've read they expect this will occur after approximately 100000 hours, or around 10 hours a day for 30 years. This technology has improved over the years (and didn't exist at first) so don't be surprised to hear of burn-in issues from people with old OLED panels. It's highly likely that modern OLED TVs (just like LCDs) will be replaced due to technological obsolescence or some non-panel fault far before the panel is worn out.
Even if my OLED TV only lasts 5 years, I will get another OLED to replace it. There is no other tech on the market that comes anywhere close to the picture quality. The picture uniformity is perfect; in fact, I now find it almost painful to watch any LCD TV due to the subtle non-uniformity (blotches, brighter edges, etc.) that most people don't even notice because it's so "normal"/common. The black levels and shadow detail of OLED are amazing. The best zone-lit LCDs have narrowed the gap but don't and can't match the performance.
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