the energy efficiency of LEDs

LED project manager at BASF Future Business GmbH, noted BASF reached an important milestone in LED research a few years ago. White led lighting can best be obtained by combining red, green and blue light. For a long time, there was no efficient source for deep-blue light. In 2003, BASF researchers laid the foundation for a phosphorescent blue emitter by developing a new class of materials based on an iridium complex. Their aim is to develop stable blue phosphorescence emitters. While the color coordinates and efficiencies of the new blue LEDs are already outstanding, the service life still presents many challenges explains If they manage to produce deep-blue stable emitters, that will open up the way for them to make white LED light tiles with a light yield of more than 100 lm/W.

According to Dr. Karsten Heuser, OPAL Coordinator and Director LED Lighting Technology at OSRAM Opto Semiconductors, in the future, LED will be suitable for general lighting as flat sources of light for offices or as decorative lighting in stores. And they not only offer the potential of being considerably more economical, but are also capable of being used in a variety of ways as flat, transparent and, eventually, flexible sources of light. They will provide completely new opportunities in terms of design and performance in part owing to newly developed semiconductor materials from BASF. The challenge now lies with the process engineers to apply these high efficiencies economically to large active areas.

South Korea, the world’s largest producer of LCDs, is trying hard to develop more efficient LED screens. LED screens are pretty awesome all around, but they have more than a few Achilles Heels to overcome before they're accepted into the mainstream.LEDs must be made to mix green, red and blue lights. Scientists have developed efficient green and red LED materials but they have had problems making a true blue LED material.The discovery was the work of Pusan National University chemistry professor Jin Sung-Ho, who said the discovery was an important one for advancing the energy efficiency of led flood lighting  For gadget lovers, it's yet another piece of the puzzle that, when completed, will mean powerful, beautiful LED TVs are a mainstay in homes across the world.The global LED production capacity is mainly distributed across Korea, Japan and China Taiwan, with the shipments of the top five manufacturers accounting for 98.7% of the global total.