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Difficulty: EasyLaptop Display Components and Features

A technician is preparing to replace a damaged screen on a modern laptop equipped with an Organic Light-Emitting Diode (OLED) panel. Which of the following display components will be absent from this laptop's display assembly?

  1. Backlight inverter boardAnswer
  2. B
    Integrated webcam module
  3. C
    Wi-Fi antenna harness
  4. D
    Display ribbon cable

Answer

The backlight inverter board is absent from an OLED display assembly because OLED pixels are self-emissive and do not require a separate backlight or high-voltage inverter.
The option selecting the backlight inverter board is correct because OLED (Organic Light-Emitting Diode) panels feature self-emissive pixels. Each pixel generates its own light when electric current is applied, making both backlights and high-voltage inverter boards completely unnecessary.

Step-by-Step Solution

1
Identify the primary display technology specified in the scenario.
The laptop uses an OLED (Organic Light-Emitting Diode) panel.
Different display technologies require distinct power and lighting components.
2
Analyze the backlighting requirements of OLED technology.
OLED pixels emit their own light individually when an electric current is applied, meaning no separate backlight (CCFL or LED) is present.
An inverter board is specifically designed to convert DC power to AC power for legacy Cold Cathode Fluorescent Lamp (CCFL) backlights in older LCD displays.
3
Determine which component is unnecessary for OLED displays.
Because there is no CCFL backlight, a backlight inverter board is completely absent from the display assembly.
Components like video cables, Wi-Fi antennas, and webcams remain necessary regardless of panel type.

Key Concept

OLED Display Characteristics and Component Differences
Estimated Time:45s
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Topics

Laptop Display Components and Features

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