[QUOTE="wakefulness"]
[QUOTE="riariases"] OLED is ORGANIC Light Emitting Diodes though. The positives are that OLED screens take much less to power because they don't need backlights, they emit light all by themselves, which will help the NGPs battery, and that it can have more vibrant colours. It expresses "pure colours", and also has the highest response times of any screen type (that I know of). The negatives are that it has much lower life expectancies at 14 000 hours, compared to LCD/LED life expectancies at 25 000 to 40 000 hours before they die, and because it is organic, it has burn in. So when you're playing FPSs for extended periods of time, expect that aiming dot in the middle to show up for a bit.
riariases
The life expectantcy on OLED's depends on the color (either Red, green or, blue with blue usually being the lowest). The half-life on these OLED's has constantly improved as time goes on. Just recently chlorine was found to be a good chemical additive to increase the effeciency of OLED displays.
http://www.engadget.com/2011/04/15/chlorine-could-be-key-to-the-cheaper-more-efficient-oled-tv-of/
There where also a few more longer lasting blue OLED lights. What you wrote about the OLED brightnes is slightly true. In order to have a maximum luminescence without back light, the pixel cells would need to be packed quite tightly (known as pixels per inch or "PPI") because any gaps would capture light waves in the dark crevices of a display panel grid and that reduces intensity. The NGP appears to have quite a bit of PPI packed in it's 5 inch display which is good news.
I had barely begun to learn about OLED's but, it is pretty interesting. OLED's do not burn in. They die off because the organic compounds no longer re-act to normal electrical conductivity. Also, AMOLED's like the ones in the NGP are actually much better compared to LCD's in not creating a ghosting effect. The refresh rate is really good because presumably they do not use TN displays and that residue of electrical impulses amoung pixels is much smoother on OLED's.
Yeah, the NGP has 4x the resolution of the PSP at only 1" larger (?) so PPI is no problem. And yes, OLEDs do have burn in. The display is based on organic chemicals that emit light when electrical currents pass through. Just google seearch "OLED burn in". And the Blue in the RGB field of OLEDs do have lower life-spans. I already knew that part. But even if the Blue died out, the screen can still function, but you're only gonna get RG balances..7 if the PSP is a 1k-3K model @ 4.3 inches.
"The display is based on organic chemicals that emit light when electrical currents pass through".The way the carbon based chemicals die off is not like how I associate the phospher in plasma cells that recognize an image and act like a sponge to things like logo's.
The whole die off of blue pixels and others still working is kind of confusing, isn't it? Most people have experienced or seen image burn-in's with plasma's and pixel sticking with LCD's. In OLED's, it would appear as if the aperture ratio of light that the diodes emit make up for a loss in things like blue pixels. Which is good in displays with a lot of PPI because that brightness would still be pretty good. Not sure about the uniformity of diode death in certain displays because the temputare's initialized by both IC's and natural heat sources like the sun which would affect the chemical compounds.
Another thing I was reading about was the possiblity of scientists adding layers in an OLED display which act like solar panels. Not only would they protect the diodes from natural heat sources but, they would also act like their own energy source. Which is really cool considering they hardly use up any energy as is.
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