LED Lighting

The University of Oxford has developed a way to improve LCDs without complex drive techniques.

Electronics Weekly puts its questions to an industry figure: George Elliott is chairman at miniature OLED display company, Edinburgh-based MED. The former CFO at Wolfson Microelectronics reveals his thoughts on breaking into the market in China, technology triggers for venture backing and the state of the high tech start-up community in Scotland.

An open-drain port expander for microcontrollers, the Catalyst Semiconductor CAT9552, is aimed at switching and flashing LEDs for advertising and industrial control.

The University of Glasgow is to combine quantum dot phosphors with its LED-boosting photonic crystals, aiming at lighting. "We have just begun to try to insert quantum dots into photonic crystal holes to tightly couple light to the quantum dots," researcher Dr Faiz Rahman told Electronics Weekly.

Multi-die packages are currently the 'flavour of the month' amongst the high power led manufacturers.

Philips has introduced a white light solid state lighting fixture based around blue power LEDs from its Lumileds subsidiary.

Lumileds is to cut the number of colour 'bins' in its white LED range following the introduction of its Lumiramic phosphor technology.

Power LEDs are now starting to offer a competitive $/lumen performance: improvements in power LED design and manufacturing

OLED has made its debut into the domestic TV market, with rave reviews about its image quality, brightness and colour range

The need for binning and its follow-on effect is one of very few drawbacks to utilising high brightness LEDs. Binning is currently a fact-of-life for manufacturers of LEDs