The advantage of LCDs over LEDs is:

The advantage of LCDs over LEDs is:

• A. Accuracy.
• B. Better visibility.
• C. Lower power consumption.
• D. Sensitivity.

Answer: (C)

Power usage is the key idea here. LCDs regulate light by filtering a backlight with liquid crystals, rather than producing light at every pixel. The main energy cost comes from the backlight, which can be dimmed or pulsed to match the image, so the overall power required to reach a given perceived brightness is often lower than that of an emissive display. That’s why lower power consumption is the best advantage. Other qualities like accuracy, visibility, or sensitivity depend on many design factors and viewing conditions, and aren’t inherent advantages of LCDs over LED-based displays.

Power usage is the key idea here. LCDs regulate light by filtering a backlight with liquid crystals, rather than producing light at every pixel. The main energy cost comes from the backlight, which can be dimmed or pulsed to match the image, so the overall power required to reach a given perceived brightness is often lower than that of an emissive display. That’s why lower power consumption is the best advantage. Other qualities like accuracy, visibility, or sensitivity depend on many design factors and viewing conditions, and aren’t inherent advantages of LCDs over LED-based displays.