Do plasma t.v.'s still suffer from brightness degradation over time?

[techs]

One of the big drawbacks with plasma's that I remember reading about a few years go was how they got dimmer with time. I remember something like 50 percent over 5 years.
I was wondering if this is still a problem?
thanks

 

[minime72706]

It is, just like it it with LCDs. But the half like now is something like 50,000? hours. It loses half its brightness if left on eight hours a day every day for like 15 or 20 years.

So no.

 

[techs]

Originally posted by: minime72706
It is, just like it it with LCDs. But the half like now is something like 50,000? hours. It loses half its brightness if left on eight hours a day every day for like 15 or 20 years.

So no.

That's the thing. I want one and will have it on like 16 hours a day, 7 days a week.
If I choose your 15 year mark at 8 hours that's like 50 percent after 7.5 years.
And if the loss is steady, that would be 25 percent after only 3.75 years.

Do lcd's also lose brightness at the same rate?

 

[minime72706]

I don't know if LCDs lose brightness in the same way, but the back light will go on them. I saw somewhere were Panasonic was claiming 100k hours now for half life. I'm assuming that since they use the term half life that its a log scale. If the TV lasts 4 years being on that much I would be more than happy with it. TVs are constantly getting cheaper and better, I imagine in four years time we will be seeing a much large roll out of OLED and other display technologies.

Is it just a TV to watch or is there some other purpose to it?

 

[sivart]

When a backlight on an LCD goes out, it goes out. You go from having a picture to no picture.

Pixels on a plasma will dim over time, but failing any other mechanical issue, the picture will still be visible.

In this respect plasma's are a lot like CRT's.

Oh, and 16 hours a day, dude get outside. If this is in a storefront, and running the same thing over and over, you may want to consider LCD to avoid burn in as quickly..don't be fooled it will still happen.

 

[sdifox]

Phosphor is phosphor, be it on a CRT or on a plasma, it is still being burnt the same way.