Laptop Displays Flashcards
Advantages of LCD displays
Lightweight
Relatively low power
Relatively cheap
Disadvantages of LCD displays
Black levels are hard
Needs a separate backlight e.g. LED, fluorescent
Lights are difficult to replace
What does LCD stand for
Liquid crystal display
What are the 3 types of LCD screens
TN - twisted nematic
IPS- in plane switching
VA- vertical alignment
Advantages of Twisted nematic
Original LCD tech
Fast response time (good for gaming)
Disadvantages of twisted nematic
Has poor viewing angles meaning the colour shifts and can be seen on the screen from certain angles
Advantages & disadvantages of in plane switching
Ad- excellent colour representation
Dis- more expensive to make then TN
Advantages and disadvantages to vertical alignment
Ad- good in between to TN & IPS
Good colour representation
Dis- slower response time than TN
What does OLED stand for
Organic light emitting diode
What does OLED stand for
Organic light emitting diode
Advantages to OlED
Thinner and lighter so no glass is needed
No backlight as the organic compound provides light
Used on tablets, phones and smart watches
Very accurate colour representation
What is run behind the display screen
Antennas- such as Bluetooth, aux & WiFi
What does CCFL stand for
Cold cathode fluorescent lamp
Components of CCFL
Higher voltage and power needed
Added thickness to the display
Older laptops will use these
Components of LCD displays (led backlight)
Backlight is LED instead of florescent
LED round the edge of the screen
Latest laptops are LED
