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Computer Science · Oct / Nov 2020 · Paper 11 · Question 8

0478

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The question as text

Matthew is buying a new television with a display that uses LED technology.

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  • 8(a)[3]

    Any three from:

    Light emitting diodes (technology)
    The display is made up of pixels
    … that are arranged together as a matrix
    … each is formed of three LEDs/filters
    Shades of colour are achieved by mixing red, blue and green
    The screen can be back-lit/edge-lit

    NOTE: Use of liquid crystals with LED technology can also be awarded

  • 8(b)[3]

    Any three from:

    Energy efficient // low power consumption
    Long lasting // longevity
    Focussed beam // less light strays from beam
    Brighter/vivid colours
    High resolution
    No flicker
    Display is thinner
    Mercury free technology // environmentally friendly
    Fewer pixel failure
    Increased viewing in sunlight

  • 8(c)[1]

    LCD
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