Danny 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 very energy efficient and gives off heat.

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

5.It is always a front-lit display.

A1, 2 & 4 only ✓ Correct

B1, 3 & 5 only

C2, 4 & 5 only

D1, 2, 4 & 5 only

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

Explanation

Statement 1 is true, as an LED display is a flat panel display.

Statement 2 is true, since it creates images using red, green and blue diodes.

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

Statement 4 is true, as LED displays are used in mobile devices like smartphones and tablets.

Statement 5 is false, since LED screens are typically back-lit, not always front-lit.

This leaves Statements 1, 2 and 4 as the true ones about LED displays.

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