Live long and phosphor: Blue LED breakthrough for efficient electronics
Live long and phosphor: Blue LED breakthrough for efficient electronics
In a step that
could lead to longer battery life in smartphones and lower power
consumption for large-screen televisions, researchers at the University
of Michigan have extended the lifetime of blue organic light emitting
diodes by a factor of 10.
Blue OLEDs are one of a trio of colors used in OLED displays such as
smartphone screens and high-end TVs. The improvement means that the
efficiencies of blue OLEDs in these devices could jump from about 5
percent to 20 percent or better in the near future.OLEDs are the latest and greatest in television technology, allowing screens to be extremely thin and even curved, with little blurring of moving objects and a wider range of viewing angles. In these "RGB" displays, each pixel contains red, green and blue modules that shine at different relative brightness to produce any color desired.
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