Anita is buying a new computer that has an LED display. Which of the following statements about LED displays are true? Choose the correct answer from the options given below:

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 a front-lit display

A1, 2, 4 ✓ Correct

B3, 5

C2, 4, 5

D4, 5

Correct answer: (A) 1, 2, 4

Explanation

An LED display is a flat panel, forms images from red, green and blue diodes, and can be used in phones and tablets.

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

Statement 2 is true because tiny red, green and blue diodes combine to make the colours on screen.

Statement 4 is true because low-power LED screens suit mobile devices like smartphones and tablets.

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

Statement 5 is false, since an LED screen is back-lit or self-lit, not front-lit.

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