On December 16th 2014, LG announced the release of its new Quantum Dot televisions. The QD equipped TVs will also be 4K or Ultra High Definition as well. LG says that the new Quantum Dot technology will improve color reproduction.
Quantum Dot technology is a new back lighting scheme for LCD TVs. Quantum Dots are essentially nano crystal semiconductors that are only about 50 atoms in size. LCD TVs use LEDs for back lighting. These LEDs use a yellow phosphor to create white light. This reduces the intensity of hues in the red wavelengths. A cleaner source of white light was sought after, and that's where Quantum Dots come in. Quantum Dots are basically phosphorescent crystals that glow when you shine light on them.
TV manufacturers are using a sheet of film saturated with Quantum Dots, They've replaced the yellow phosphor coated LEDs with a blue LED. The Quantum Dots can be engineered to glow in a specific color, allowing for very precise shades of red and green to be obtained. The light from the blue LED is combined with the glowing red and green Quantum Dots to produce a white light with fewer transient peaks. The result is brighter, more accurate colors.
Those who are interested in finding out more about the new Quantum Dot TVs can do so at the CES ( Consumer Electronics Show), on January 6th 2015, in Las Vegas.
No comments:
Post a Comment