Sony Shows Off Flexible OLED Screens At CES 150
An anonymous reader writes "Sony's stand at CES had a small area set aside for flexible OLED screens, along with three mock-ups of possible OLED devices (including one stunning ultra-portable with no hinge and a single display for both screen and keyboard). There was also a working OLED screen being bent back and forth while playing a video clip. Does this mean roll-up, low-power colour screens will soon hit the market? Not unless OLED prices come down — Sony's stunning XEL-1 OLED TV costs $2,500, but only has an 11in screen ..."
Samsung shows transparent OLED at 2009 CES (Score:4, Informative)
Some OLED notes (Score:5, Informative)
A few points about OLED:
1) The optimal solution right now is flourescent blue combined with PHOLED red and green (phosphorescent). It's unclear right now how much PHOLED is being used in Sony's sets.
PHOLED is important primarily for power consumption which is why OLED screens are showing up more frequently in mobile devices. Nokia recently mandated that their suppliers have supply capability for OLED. Samsung is the major proponent of using PHOLED although LG and others are on board with materials+royalty contracts in place.
2) Samsung's recent statements about larger screen sizes (30"+) being far into the future seem to be due to two issues. First, although current LCD lines can be relatively easily retrofitted to produce OLED panels, production capacity is just starting to be scaled.
Second, and probably more importantly, the major LCD panel manufacturers have a major investment to be paid off in the later gen lines that recently came online.
3) The major issues facing OLED right now are packaging, lifetime and defect rate. The molecules degrade rapidly when exposed to oxygen/moisture so much tighter packaging is required (largely solved). Blue lifetime (both molecule sizes) was a problem in the past, 30k+ hours is now realistic. Defect rate applies to larger panels and is why 30"+ screens will be prohibitively expensive for now (Samsung has produced prototypes though so it isn't vaporware).
4) PHOLED can reach 100% EQE, flourescent around 25%. PMOLED is still viable but PHOLED should (imho) be the ideal molecule in the future. PHOLED deep blue with adequate lifetime is still the major hurdle, sky blue is ready to go.
5) OLED isn't just display. Lighting is arguably a larger market in the long run. Current specs are around 50lm/W but 100lm/W PHOLED has been successfully demonstrated. 150lm/W is pushing the envelope but not unrealistic.
GE is pushing its roll-to-roll initiative. Philips is aggressively heading toward commercial production. OLED lighting offers lower power consumption, temperature tunability, flexibility, flat panel replacement and fault tolerance (in the respect that a hole in the middle of the panel won't take out the entire structure). Universal Display recently received a grant with Armstrong to engineer tiles for commercial use.
6) OLED's appeal is not just a better display and flexibility; thickness (sub-1mm) and transparency are important factors for future designs and mass acceptance as a technology (Youtube has many videos about the Samsung prototypes).
7) The technology is way past the prototype stage, like where FED and SED have been stuck. Kodak, Dupont, BASF and every Japanese and Korean company you can name are involved (i.e. heavily investing) in OLED. Not to mention that the Chinese are going online this year in a big way. Will it replace LCD for display? Not any time soon. The question is not how many applications there are to make it viable, it's how soon these apps will gain critical mass in the marketplace.
Google for further information.
Re:Do they come with rootkits? (Score:4, Informative)
OLED circuitry still far from flexible enough (Score:3, Informative)
The OLED flex demo video shows at least two dead pixel rows, and the display doesn't even flex all that much, carefully bending in only one direction. This is very similar performance to "flexible OLED" demos we've seen for the past five years: The tech is so far away from commercial reality it's hardly worth demo'ing on a tradeshow alongside with commercially available tech.