Infrared, red, and even green LEDs were “easy”, but blue LEDs require a much larger bandgap, and therefore required more exotic materials. The puzzle behind making a high-brightness blue LED ...

Macetech’s ShiftBrite is a high-power RGB LED coupled with an Allegro A6281 backpack. The A6281 uses three 10bit pulse-width modulators to mix millions of colors using the red, green, and blue ...

For example, when red, green and blue LEDs are combined, they produce white light. Another method uses a blue LED and yellow or red phosphors. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other ...