Anita is buying a new computer that has an LED display. Which of the following statements about LED displays are true?

1.It is a flat panel display

2.It creates images using red, green and blue diodes

3.It is not energy efficient and gives off heat

4.It can be used in mobile devices such as smartphones and tablets

5.It is a front-lit display

A1, 2 & 4 only ✓ Correct

B3 & 5 only

C2, 4 & 5 only

D4 & 5 only

Correct answer: (A) 1, 2 & 4 only

Explanation

Statement 1 is true because an LED display is a flat panel display.

Statement 2 is true because it forms images using red, green and blue light-emitting diodes.

Statement 4 is true because LED screens are widely used in smartphones and tablets.

Statement 3 is false because LED displays are energy efficient and give off relatively little heat.

Statement 5 is false because such displays are back-lit rather than front-lit.

LEDs switch on and off fast and deliver bright, low-power images.

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