Laptop Displays

Portable LCD

• Most Laptops today use a Liquid Crystal Display (LCD) Display

  • Light shines through liquid crystals

• Advantages

  • Lightweight

  • Relatively low power

  • Relatively inexpensive

• Disadvantages

  • Black levels are a challenge (No true black)

  • Requires separate backlight

    • Florescent, LED, etc

    • Lights are difficult to replace

LCD Technologies

• TN (Twisted Nematic) LCD

  • The original LCD technology

  • Fast response times (gaming!)

  • Poor viewing angles - color shifts

• IPS (In Plane Switching) LCD

  • Excellent color representation

  • More expensive to produce than TN

• VA (Vertical Alignment) LCD

  • A good compromise between TN and IPS

  • Good color representation

  • Slower response times than TN

OLED

• Organic Light Emitting Diode (OLED)

• Organic compound emits light when receiving an electric current