Liquid Crystal Display, uses electric impulses to rotate polarized liquid crystals
List 3 advantages of LCD displays
Lightweight, relatively low power consumption, relatively inexpensive
List 3 disadvantages of LCD displays
No true blacks, requires a backlight, backlights are difficult to replace
List the 3 types of LCD displays
TN (Twisted Nematic), IPS (In Plane Switching), VA (Vertical Alignment)
Name 1 advantage and 2 disadvantages of TN
Fast response times, poor viewing angles, poor color representation
Name 1 advantage and 1 disadvantage of IPS
Excellent color representation, more expensive
How does VA compare to TN and IPS
It is a good compromise between the two
Define and describe OLED
Organic Light Emitting Diode, uses an organic compound which emits light while electrified
Why might one prefer OLED to LCD
Thinner, lighter, no backlight, best color representation, true blacks
True or false: OLED is more expensive than LCD
True
Where is one most likely to find the wireless antennas on a laptop?
Near the top of the display case
What typically connects through the hinges on a laptop?
The wireless antennas connections
Define and contrast LED vs CCFL backlighting
Light Emitting Diode vs Cold Cathode Fluorescent Light, LEDs are more energy efficient and versatile and used to be more expensive than CCFL but are now priced similarly, most modern laptops use LED backlighting
What is an inverter?
A device that converts DC power into AC power
Why might a laptop have an inverter?
Some backlights run on AC power, particularly CCFL
What is a digitizer?
A device that translates physical touch into digital input