GE announced today a research breakthrough that will vastly improve the
color and crispness of images displayed on LED devices – everything from
cell phones and tablets to televisions. Scientists at GE Lighting and GE
Global Research developed a phosphor powder that, when packaged inside
an LED, push the picture quality of LED electronics to new heights.
Conventional LED Display vs. LED Display with PFS (Photo: Business Wire)
GE’s patented solution involves adding potassium fluorosilicate (PFS)
doped with manganese as a red line emitter to an LED. The use of the PFS
phosphor in LED systems generates a reddish color that’s sharper,
cleaner, and truer than the state-of-the-art nitride phosphor –
resulting in less color bleed and a richer picture.
To see a lab demonstration and learn more about the technology,
please watch this short video: http://youtu.be/5KYDK-oFRVM
Anant Setlur, a materials scientist and leader on the phosphors effort
at GE Global Research, said, “Backlit displays consist of an array of
LEDs fed into a waveguide to filter out red, green, and blue. In most of
the devices you see on the market today, the red component in the LED is
low quality, causing greens to look yellowish; this negatively impacts
the overall picture quality. What we’ve achieved here allows for more
natural color in consumer electronics. The difference in picture quality
is stunning.”
GE Ventures has licensed the technology patents to Sharp Corporation and
Nichia Corporation, both of which are manufacturing and packaging LEDs
containing PFS phosphor material for use as LED backlights in a wide
range of LCD display products. In fact, several display companies have
recently launched tablets and smartphones containing LED devices
supplied by these licensees.
Mike Petracci, General Manager of Licensing, GE Ventures, said, “Sharp
and Nichia are world-class leaders in the design and sale of LEDs and we
are pleased to bring this breakthrough to market.”
About GE Global Research
GE Global Research is the hub of technology development for all of GE's
businesses. Our scientists and engineers redefine what’s possible, drive
growth for our businesses, and find answers to some of the world’s
toughest problems.
We innovate 24 hours a day, with sites in Niskayuna, New York; San
Ramon, California; Bangalore, India; Shanghai, China; Munich, Germany;
and Rio de Janeiro, Brazil.
Visit GE Global Research on the web at www.geglobalresearch.com.
Connect with our technologists at www.geglobalresearch.com/blog and twitter.com/geresearch.
About GE Ventures
At GE Ventures, we combine capital, technical and commercial license
expertise, infrastructure, and the GE global network of businesses and
partners to scale great ideas that drive growth for partners and GE. Our
goal is to become the global partner of choice, to make the world work
better, to build, power, move and cure.
About GE Lighting
GE Lighting invents with the vigor of its founder Thomas Edison to
develop energy-efficient solutions that change the way people light
their world in commercial, industrial, municipal and residential
settings. The business employs about 13,000 people in more than 100
countries, and sells products under the Reveal® and Energy Smart®
consumer brands, and Evolve™, GTx™, Immersion™, Infusion™, Lumination™,
Albeo™ and Tetra® commercial brands, all trademarks of GE. GE works on
things that matter to build a world that works better. For more
information, visit www.gelighting.com.
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