What is the purpose of using the auto-brightness feature on a mobile device with an LCD screen?

What is the purpose of using the auto-brightness feature on a mobile device with an LCD screen?

  • to conserve battery power
  • to reduce the interference from sunlight
  • to prevent the burn-in effect on the screen
  • to display text messages with better contrast
    Explanation:

    The LCD screen for most mobile devices uses the most battery power. Lowering the brightness or using the auto-brightness feature helps conserve battery power.

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