LED vs. CCFL: Choosing the Right Backlight for your Display
Whether LEDs or CCFLs, typical LCD monitors need a backlight to produce visible images on screen. Most modern displays employ the use of LEDs to illuminate their images, however many older or lower cost displays still use the tried-and-true compact cold fluorescent as their light source. (OLEDs, a newer type of self-illuminating display, are a topic for another discussion).