At 09:46 PM 10/12/2009, you wrote:
Wiinterlight,
What is your value for a viable "life span" for this new tech?
I only need 15-20 years, ATM.....:)
from http://en.wikipedia.org/wiki/Organic_light-emitting_diode
Disadvantages
The biggest technical problem for OLEDs is the limited lifetime of
the organic materials.[44] In particular, blue OLEDs historically
have had a lifetime of around 14,000 hours (five years at 8 hours a
day) when used for flat-panel displays, which is lower than the
typical lifetime of LCD, LED or PDP technologyeach currently rated
for about 60,000 hours, depending on manufacturer and model. However,
some manufacturers of OLED displays claim to have come up with a way
to solve this problem with a new technology to increase the lifespan
of OLED displays, pushing their expected life past that of LCD
displays.[45] A metal membrane helps deliver light from polymers in
the substrate throughout the glass surface more efficiently than
current OLEDs. The result is the same picture quality with half the
brightness and a doubling of the screen's expected life.[46]
In 2007, experimental PLEDs were created which can sustain 400 cd/m²
of luminance for over 198,000 hours for green OLEDs and 62,000 hours
for blue OLEDs.[47]
Additionally, as consequence of the fact that light emitting
components of different colors have different lifetimes, it's obvious
that the quality of a color picture would degrade over time since
emission of each color reduces by a different amount. At some point
color picture quality would become unacceptable, so overall display
lifetime could be even worse than lifetime of separate components
because many uses are putting certain requirements on picture
quality. This can be partially avoided by adjusting color balance but
this may require advanced control circuits and interaction with user,
which is unacceptable for some uses.
The intrusion of water into displays can damage or destroy the
organic materials. Therefore, improved sealing processes are
important for practical manufacturing and may limit the longevity of
more flexible displays.[48]
