General > General Technical Chat
Why do backlight LEDs burn out and go blue?
IanB:
--- Quote from: wraper on November 11, 2021, 12:17:36 pm ---LOL, LG OLED TV in most cases last longer than LG LCD with failing backlight. Burn-in in most cases can be eliminated by running a compensation cycle for a few minutes. I'd say the most prominent downside is price rather than reliability.
--- End quote ---
Yes. Also, I was looking at a price sticker of nearly $1000 underneath a display TV, and realized it was not the price of the TV, but the price of a sound bar to pair up with the TV (which also cost nearly $1000).
In the old days you would buy a TV with integrated sound. Now, they are decoupled and you have to buy your sound separately.
bdunham7:
--- Quote from: wraper on November 11, 2021, 12:17:36 pm ---LOL, LG OLED TV in most cases last longer than LG LCD with failing backlight.
--- End quote ---
That's a pretty low standard. It is certainly possible that LG has perfected the OLED display and there won't be any issues, but given the track record of LG and the OLED in general, I'm not going to give them the benefit of the doubt quite yet. The few years that they have been out isn't enough to convince me to replace my 14 year old plasma TV. I like to keep things and a TV that only lasts 5 years would really irk me.
wraper:
--- Quote from: bdunham7 on November 11, 2021, 03:34:42 pm ---
--- Quote from: wraper on November 11, 2021, 12:17:36 pm ---LOL, LG OLED TV in most cases last longer than LG LCD with failing backlight.
--- End quote ---
That's a pretty low standard. It is certainly possible that LG has perfected the OLED display and there won't be any issues, but given the track record of LG and the OLED in general, I'm not going to give them the benefit of the doubt quite yet. The few years that they have been out isn't enough to convince me to replace my 14 year old plasma TV. I like to keep things and a TV that only lasts 5 years would really irk me.
--- End quote ---
Failing multimeter, coffee machine and similar small displays are not an indication of OLED TV reliability. They are out way more than a few years.
bdunham7:
--- Quote from: wraper on November 11, 2021, 04:07:28 pm ---Failing multimeter, coffee machine and similar small displays are not an indication of OLED TV reliability. They are out way more than a few years.
--- End quote ---
OLED TVs have been out for 14 years, but those were rare, expensive and not very good. Modern, mainstream 4K OLED TVs have been out about 4 years or so, AFAIK. Here's an LG OLED with screen burn after about 4 years of use. Go to 2:30 to skip the lower-time ones without burn.
Ranayna:
--- Quote from: IanB on November 11, 2021, 03:30:06 pm ---In the old days you would buy a TV with integrated sound. Now, they are decoupled and you have to buy your sound separately.
--- End quote ---
They do still have integrated sound. But modern TVs have to be razor thin, and since decent sound needs physical volume, the inbuild speakers are mostly bad.
Well, now they can upsell their soundbars as well :D
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