Which of the following laptop components provides direct electrical supply to illuminate the screen's image?

The correct answer is C. Inverter. The inverter converts the low-voltage DC power from the laptop's power system into the high-voltage AC required to power the CCFL (Cold Cathode Fluorescent Lamp) backlight. Without the inverter supplying the correct electrical current, the backlight cannot illuminate. The…

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Question

Which of the following laptop components provides direct electrical supply to illuminate the screen's image?

Options

ADC jack
BCMOS battery
CInverter
DBacklight

How the community answered

(29 responses)

A
3% (1)
B
3% (1)
C
86% (25)
D
7% (2)

Explanation

The inverter converts the low-voltage DC power from the laptop's power system into the high-voltage AC required to power the CCFL (Cold Cathode Fluorescent Lamp) backlight. Without the inverter supplying the correct electrical current, the backlight cannot illuminate. The backlight itself is the light source, but the inverter is the component that actively provides and regulates the electrical supply to it. The DC jack delivers power to the laptop overall, and the CMOS battery only maintains BIOS settings.

Topics

#laptop display#inverter#backlight#LCD components

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