Display Devices Flashcards
Resolution
It is the number of pixels that make up the dimension of a display, represented in a ratio value as the number of horizontal pixels by vertical pixels.
LCD (Liquid Crystal Display)
A flat panel screen that uses a liquid crystal solution sandwiched between two polarizing filters and glass panels.
TN (Twisted Nematic)
A liquid-crystal display consisting of nematic liquid crystal in a perpendicular orientation confined between two plates of polarized glass.
Display Projector
A specialized computer display that projects an enlarged image on a large surface such as a wall, white board, or movie screen.
DLP (Digital Light Processing)
A technology that uses a single chip with a reflective surface composed of thousands of tiny mirrors corresponding to individual pixels.
Brightness
A measurement of the intensity of the energy output of a visible light source with pure white having the maximum brightness and pure black the minimum brightness.
Refresh Rate
It is the number of times in a second that a display hardware updates its buffer.
Native Resolution
The fixed resolution for LCD or other flat panel display devices.
Plasma Display
A device that contains a neon/xenon gas mixture sealed between two glass plates.
What LCD technology produces the most accurate colours?
IPS
If you are working in a room with high ambient light, what display setting would you adjust to be able to see the screen better?
Brightness
The refresh rate is the number of times a display’s image is repainted or refreshed per second.
True
OLED
Uses an organic substance as the semiconductor material and uses a series of thin, light-emitting films on which when an electrical current is applied, photons move through the organic substance and emit a bright light
What are the primary layers of an OLED display.
- The substrate which acts as the structural framework.
- The anode which draws electrons
- The organic layer, which contains two sublayers.
If you have a DVI monitor and a VGA graphics port, you can’t install your monitor.
False
What might cause display artifacts?
Overheated graphics card
If the colours on your monitor appear faded, muted, too dark, or too light, you can adjust the colour depth using Windows Control Panel Display applet.
True
If you have a blank monitor screen, it is most likely due to monitor failure.
False
Flickering image
An incompatible display driver
Distorted geometry
A defect in the optic lens system
Blank screen on boot up
Incompatible or corrupt graphics driver
Artifacts
Graphics card driver is corrupt
Overheat shutdown
Overclocking of GPU
What OLED display layer acts as the structural framework?
Substrate
What gives the best image quality on a LCD?
Native resolution
What does plasma technology use to create colour?
Small cells filled with noble gases and phosphors
What issues occur due to an incompatible display driver?
Flickering image
What is a measurement of how often the display image is updated per second?
Refresh rate
What is a small circuit board attached to the display screen on a laptop computer?
Screen inverter
What uses a grid of horizontal and vertical wires with an LCD element at each intersection?
Passive matrix
What type of display technology uses small cells filled with noble gases and phosphors to create colour?
Plasma
What uses a single chip with a reflective surface composed of thousands of tiny mirrors corresponding to individual pixels?
DLP
What liquid-crystal technology allows the polarized crystals to move more freely into the desired alignment?
IPS
