OLED
Advantages and Disadvantages
ADVANTAGES:
The
LCD is currently the display of choice in small devices and is also
popular in large-screen TVs. Regular LEDs often form the digits
onOLED Advantages and Disadvantages
digital
clocks and other electronic devices. OLEDs offer many advantages over
both LCDs and LEDs: digital clocks and other electronic devices.
OLEDs offer many advantages over both LCDs and LEDs:
The
plastic, organic layers of an OLED are thinner, lighter and more
flexible than the crystalline layers in an LED or LCD.
Because
the light-emitting layers of an OLED are lighter, the substrate of an
OLED can be flexible instead of rigid. OLED substrates can be plastic
rather than the glass used for LEDs and LCDs.
OLEDs
are brighter than LEDs. Because the organic layers of an OLED are
much thinner than the corresponding inorganic crystal layers of an
LED, the conductive and emissive layers of an OLED can be
multi-layered. Also, LEDs and LCDs require glass for support, and
glass absorbs some light. OLEDs do not require glass.
OLEDs
do not require backlighting like LCDs . LCDs work by selectively
blocking areas of the backlight to make the images that you see,
while OLEDs generate light themselves. Because OLEDs do not require
backlighting, they consume much less power than LCDs (most of the LCD
power goes to the backlighting). This is especially important for
battery-operated devices such as cell phones.
OLEDs
are easier to produce and can be made to larger sizes. Because OLEDs
are essentially plastics, they can be made into large, thin sheets.
It is much more difficult to grow and lay down so many liquid
crystals.
OLEDs
have large fields of view, about 170 degrees. Because LCDs work by
blocking light, they have an inherent viewing obstacle from certain
angles. OLEDs produce their own light, so they have a much wider
viewing range.
Problems
with OLED
OLED seems to be the perfect technology for all types of displays, but it also has some problems:
OLED seems to be the perfect technology for all types of displays, but it also has some problems:
Lifetime
- While red and green OLED films have longer lifetimes (46,000 to
230,000 hours), blue organics currently have much shorter lifetimes
(up to around 14,000 hours
Manufacturing
- Manufacturing processes are expensive right now.
Water
- Water can easily damage OLEDs.
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