1.2 Laptop Displays Flashcards Preview

CompTIA A+ 220-1001 Flashcards - Professor Messer > 1.2 Laptop Displays > Flashcards

Flashcards in 1.2 Laptop Displays Deck (7)
Loading flashcards...
1
Q

Portable LCD

A

Liquid crystal display - Light shines through liquid crystals
Advantages
• Lightweight
• Relatively low power and relatively inexpensive
Disadvantages
• Black levels are a challenge
• Requires separate backlight
• Florescent, LED, etc. / Difficult to replace

2
Q

OLED on laptops

A
Organic Light Emitting Diode
• Organic compound emits light when
receiving an electric current
• Thinner and lighter
• Flexible and mobile - no glass needed
• No backlight - The organic compound provides the light
• Not quite ready for laptops
• Organic materials degrade over time
• Decayed images can remain on the screen
• More costly and power hungry than LCD
3
Q

Wi-Fi antennas

A
  • Multiple antennas - WiFi main and aux and Bluetooth

* Antenna wires wrap around the laptop screen

4
Q

Microphone

A
  • Built-in to the laptop
  • Useful for video calls
  • Not good for non-casual use
  • Analog or USB microphones can help
5
Q

Backlight and inverter

A
  • LCD displays need a backlight
  • Florescent lamp to LCD display to your eyes
  • Some laptops have inverters
    • Convert DC into AC
  • Verify backlight
    • Look closely
  • May need to replace the LCD inverter or display
    • Choose carefully
6
Q

Digitizer

A
  • Use a pen-like device as input
  • Useful for graphical input
  • Becoming more common on laptop / tablets
  • Or hybrid devices
7
Q

Touchscreen

A
  • Merge laptop and tablet input
  • No keyboard required
    • But often still available
    • Many options for input
  • Use the best one for the job