New, digital control methods enable the user to make a wide range of adjustments to provide light of the desired level and colour. This allows the creation of many new kinds of lighting applications. The control method is based on software algorithms that carefully balance the many variations which occur in LEDs. This solves one of the key challenges in the development of high-power LED applications. The research results presented in this press release do not imply market introduction of a new product by Philips Electronics.
Lighting plays a major role in determining our perception and experience of our surroundings.
Completely different moods can be created in the same room, by using lamps differing in colour, intensity or direction. For reading a book, you need a bright light spot, television viewing is best with dimmed lighting, when you throw a party, you might use red crepe decorations to create a more festive atmosphere. By combining LEDs of the principal colours red, green and blue, a light source of variable and controllable colour is obtained. Up till now, LEDs have mainly been used for sign and signalling applications, but continuous progress towards higher light output makes them increasingly useful for illumination. In addition to creating a personalized lighting ambient, another attractive application is in LCD monitors, where LED backlighting can be used to deliver true colour performance and freedom in colour adjustment.