On Sunday 21 October 2007 02:52:43 Andrew Lentvorski wrote: > Dexter Filmore wrote: > > Well, OLEDs for one are Very Very Expensive (TM), a recently produced > > Display at something around 8" was 7000$ iirc. > > And this was the argument against LCDs vs. CRTs, too. Economics only > gets better for new technologies.
Yes, but TFTs didn't start at only 8" meant as a computer display. They opened the market right away with 14" and more. OLED starts from a much higher price with a far more limited product. > And, they can't be *that* expensive or you couldn't use them in phones. > So, this is likely a yield issue at larger sizes just like LCDs > originally had. Has to do with how OLEDs are produced. Producing a *small* OLED panel is easy, and those go at below 60 bucks in RGB. But as soon as you increase panel size, you have to make bigger light emitting cells. You don't have that problem with TFT since you only have to make a larger backlight area and cover that with larger LC fields. Not too hard. > > Plus, they don't last long. Someone claimed 50000h recently but I doubt > > that since everyone else got 5000 up to now at best. > > This is the big crux. The blue elements had a lifetime of about 5000 > hours (the red and green elements were fine). However, several > companies have filed patents on ways to extend that and all of them seem > to be indicating the 30000-50000 hour range. In labs - not in mass production. > > > There's not a single desktop monitor replacement around 19" available, so > > I'd actually do call this vaporware. > > As I pointed out, they are in phones *now* as opposed to any other > non-LCD display technology. That's a whole lotta production to dismiss > as vapor. Cell display != desktop computer display. I had LCDs in pocket calcs 20 years ago, that would be saying like TFTs weren't vaporware 20 years ago because the calc LCDs existed. > > One interesting difference tho: they're working on it while SEDs are > > mainly struggling against company politics, they could well start > > producing while with OLEDs there simply are some tech problems yet to > > overcome. > > Really? Reference? Uh.. your fav bunch of IT newsticker, tech newspapers..? Dex -- -----BEGIN GEEK CODE BLOCK----- Version: 3.12 GCS d--(+)@ s-:+ a- C++++ UL++ P+>++ L+++>++++ E-- W++ N o? K- w--(---) !O M+ V- PS+ PE Y++ PGP t++(---)@ 5 X+(++) R+(++) tv--(+)@ b++(+++) DI+++ D- G++ e* h>++ r* y? ------END GEEK CODE BLOCK------ http://www.stop1984.com http://www.againsttcpa.com -- [email protected] http://www.kernel-panic.org/cgi-bin/mailman/listinfo/kplug-list
