COMPUTER FUNDAMENTALS

Detailed explanation-1: -LED TVs use energy-efficient light emitting diodes (LED) for backlighting. These consume less power than cold cathode fluorescent lamps (CCFL) used in traditional LCD televisions. Power savings are typically 20-30%.

Detailed explanation-2: -LCDs consume much less power than LED and gas-display displays because they work on the principle of blocking light rather than emitting it.

Detailed explanation-3: -CRT and plasma TVs use around three times more electricity than their LCD and LED counterparts. If you have a TV set using the older technologies, switching to an LCD or LED set can help lower your electricity bill.

Detailed explanation-4: -Instead, LCD displays rely on an array of thin-tube fluorescent bulbs that provide a constant source of light to create a white screen. To make it black, LCDs rely on a diffuser to block this light. As a result, LCDs use more energy than CRTs to display a black screen.