2009-03-11

Oxford Instruments - TDI unites LED maker develop semi-polar GaN

Group III-nitride materials have been widely used for visible and ultraviolet LEDs and blue, violet laser diodes in the past decade. Most of these optoelectronic devices are typically fabricated on the conventional polar (0001) c-plane oriented substrate materials. Devices grown on the polar substrate orientation suffer undesirable spontaneous and piezoelectric polarization resulting in significant band bending in the quantum well. This reduces radiative recombination efficiency and lowers device performance.
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Samsung Electronics America is enhancing the fan experience at the Walmart Arkansas Music Pavilion (AMP) with an ecosystem of Outdoor LED video walls, TVs and Galaxy tablets. From the front row to the farthest corners of the outdoor venue, Sam... READ MORE

According to The Elec, Samsung has announced plans to launch a 115-inch RGB Micro LED TV later this year. The new model will be part of the company’s Neo QLED TV lineup but positioned as an ultra-high-end version. In contrast, current Ne... READ MORE