Polymer Light-Emitting Diodes (6)

1 Name: Sling!XD/uSlingU : 2006-04-15 22:59 ID:FQDB7Vir

"LCD screens are dependant upon polarisation. You have a really strong backlight, you pass currents through the liquid crystal layer and it blocks out certain frequencies of light. No matter what you show on screen, whether it be completely black or completely white, it's consuming the same electricity, it's just that in one, the liquid crystal is letting you see it, in another it's not. Have you ever wondered why the screen gets its darkest ONLY when you turn it off? That's because the backlight gets turned off. OLEDs naturally produce the light from the off, and only use the energy required to make the frequency you need. Not only does this mean you get a more natural colour, you get REALLY good contrast because you can render black properly."

...Exactly! I hate LCD screens because black is never black, it's a shiny grey. But if each pixel was emitting its own light, then black would be real black. When are we getting PLED screens?

2 Name: Anonymous Scientist : 2006-04-16 00:05 ID:3WWQTfl7

Probably when issues like mass production and burn-in are fixed. I played with some 64x16 pixel OLED screens at work, and while they looked awesome, it was really easy to burn in image on them.

3 Name: Anonymous Scientist : 2006-04-17 19:17 ID:Heaven

I think the other major problem as well is lifespan. Currently, you get very little usage time out of them, this is increasing however it's still not as good as its LCD brethern. The other tidbit as well, and wikipedia rolls on about this, is the fact that OLED is infact organic. Stopping the stuff from breaking down is like keep juicy steak fresh in the middle of a desert.

4 Name: Anonymous Scientist : 2006-04-18 13:31 ID:Heaven


You are severely confusing several distinct meanings of the word "organic" there. Chemists use "organic" to mean nothing more and nothing less than "containing carbon". To a chemist, diamond is highly organic.

5 Name: Anonymous Scientist : 2006-04-18 19:14 ID:WOWKRsI/

Yeah probably. Trust me to believe a word wikipedia has on it: http://en.wikipedia.org/wiki/OLED#Drawbacks

6 Name: Sling!XD/uSlingU : 2006-04-19 00:32 ID:FQDB7Vir

I hate this part: "Commercial development of the technology is also restrained by patents held by Kodak and other firms, requiring other companies to acquire a license. In the past, many display technologies have become widespread only once the patents had expired; aperture grille CRT is a classic example."

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