Which of the following display types is likely to draw the LEAST amount of power?

Traditional LCD panels use cold cathode fluorescent lamps (CCFL) for backlighting, which consume more power than LED backlights.

LED (Light Emitting Diode) displays use LEDs as backlights or as individual pixels, consuming far less power than the alternatives. Compared to fluorescent-backlit LCDs, plasma discharge panels, and CRT electron guns, LEDs require minimal voltage to emit light. This efficiency gain is why LED has largely replaced older backlight technologies in modern displays.

CRT monitors use an electron gun to energize phosphors and require high-voltage circuits, making them among the highest power-consuming display types.

Plasma displays use ionized gas cells that require sustained high-voltage discharge to maintain an image, resulting in significantly higher power draw than LED.