Edge Backlight

The emergence of LEDs bright enough to backlight large LCD displays promises to reshape power requirements in LCD. Recent announcements and technology demonstrations provide further evidence that increases in LED light output are making these solid-state lamps viable replacements for the cold cathode fluorescent lamps (CCFLs) currently used in large LCD displays. The adoption of LED backlights in these applications promises to reduce the power consumed by backlighting(in the long run, if not always in the near-term LED backlight solutions.)At the same time,LED backlights should alter the backlight’s power supply requirements.