220-801 · Question #161
Modern laptop screens are much brighter because of advances in which of the following technologies?
The correct answer is A. LED. Modern laptops use LED (Light Emitting Diode) backlighting, which replaced older CCFL technology and delivers significantly greater brightness and efficiency.
Question
Modern laptop screens are much brighter because of advances in which of the following technologies?
Options
- ALED
- BBatteries
- CInverter
- DPlasma
How the community answered
(48 responses)- A96% (46)
- C2% (1)
- D2% (1)
Why each option
Modern laptops use LED (Light Emitting Diode) backlighting, which replaced older CCFL technology and delivers significantly greater brightness and efficiency.
LED backlighting replaced Cold Cathode Fluorescent Lamp (CCFL) technology in laptop displays, providing substantially higher brightness levels measured in nits, lower power consumption, longer lifespan, and thinner form factors. LED panels can be driven at higher intensities than CCFLs, which is the direct reason modern laptop screens appear much brighter than older models.
Battery technology improvements affect runtime and power delivery but do not directly contribute to increased screen brightness.
Inverters are components that power CCFL backlights in older LCD screens; they are part of the older, dimmer technology that LED replaced.
Plasma display technology is used in large flat-panel TVs and is not used in laptop screens.
Concept tested: LED backlight technology replacing CCFL for brightness
Source: https://learn.microsoft.com/en-us/windows-hardware/design/component-guidelines/display
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