1.2 - Mobile Devices Flashcards
Where is a laptops WiFi antenna typically located?
- Near the top, inside the display case
What is the most common display technology for laptops?
- LCD
What are the three types of LCD technology?
- In-Plane Switching (IPS)
- Twisted Nematic (TN)
- Vertical Alignment (VA)
What are three characteristic features of In-Plane Switching (IPS) technology?
- High color quality
- Wide viewing angles
- Slow response times
What are three characteristic features of Twisted Nematic (TN) technology?
- Low viewing angles
- Fast response times
- Low color quality
What are three characteristic features of Vertical Alignment (VA) technology?
- High contrast ratios
- Good viewing angles
- Good color quality
What are three characteristic features of OLED technology?
- Works without backlight
- Lower brightness (vs. LCD)
- Better contrast and color representation (vs. LCD)
What backlight technology is most commonly used in laptops?
- LED
What are two functions of a laptops inverter?
- Supplies voltage to backlight in older LCD panels
- Converts DC power into AC power
What are five common causes of computer monitor issues / failures?
- Inverter failure
- Loose cable connection
- Bad LCD display
- Wrong input selection
- Backlight failure
A permanent computer display screen discoloration caused by displaying the same static image for extended periods of time is know as:
- Burn-in
A tiny spot on a LCD monitor that permanently remains black is commonly referred to as a:
- Dead pixel
A dim display on a laptop LCD might indicate a problem related to these two components:
- Backlight
- Inverter
