Shared Flashcard Set

Details

1.10
Display Devices
28
Computer Science
Post-Graduate
01/11/2017

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Cards

Term
Which type of monitor uses cold cathode fluorescent lamps (CCFLs) as the backlight source?
Definition
Liquid crystal display (LCD)
Term
What unit is the refresh rate of a display device measured in?
Definition
Hertz (Hz)
Term
What term describes the number of pixels that make up the display?
Definition
Resolution
Term
What unit is used to measure brightness?
Definition
Lumens
Term
What unit is used to measure power?
Definition
Watts
Term
How do light-emitting diode (LED) backlights compare to cold cathode fluorescent lamp (CCFL) backlights?
Definition
They are lighter, cheaper, brighter, and have a longer lifespan
Term
Liquid crystal display (LCD) monitors use either Twisted Nematic (TN) or In-Plane Switching (IPS) technology. What advantage does IPS offer over NT?
Definition
IPS provides better color reproduction and better viewing angles
Term
Which type of display device is always analog and requires a Video Graphics Array (VGA) cable to convert a digital signal to analog?
Definition
Cathode ray tube (CRT)
Term
What term describes the fixed resolution for liquid crystal display (LCD) or other flat panel display devices?
Definition
Native resolution
Term
What advantage do plasma displays have over other display types?
Definition
They provide high contrast, brightness, and vibrant colors from a wide viewing range
Term
What are the drawbacks of plasma displays?
Definition
-They are susceptible to image burn-in from repeated, long-term use, although this is not as much of a problem as it used to be
-They are much heavier than other displays due to their technology
-They are only available in large sizes, typically 40” and greater
-They tend to use more power and run hotter than LCD or LED displays
Term
What is the advantage of organic light-emitting diode (OLED) displays over liquid crystal display (LCD) displays?
Definition
They are brighter and consume less power than LCD displays
Term
What is the refresh rate?
Definition
A measure of how many times the display is refreshed per second
Term
What is contrast?
Definition
A measure of the difference in intensity between adjacent colors in an image
Term
What resolutions has an aspect ratio of 16:9?
Definition
1,920x1,080px
Term
What setting would you need to adjust if you wanted icons on your screen to appear larger, even though fewer objects would be able to fit on the screen?
Definition
Resolution
Term
How does the evolution in display device technology relate to energy efficiency and cost?
Definition
As technology evolves, display devices tend to use less energy, but cost more.
Term
What does the contrast setting of a display device refer to?
Definition
The difference in intensity between adjacent colors in an image
Term
If you notice that the screen displayed does not seem centered in relation to the physical device, what setting should you adjust?
Definition
Image position
Term
What is the most energy efficient display?
Definition
An organic light-emitting diode (OLED) monitor
Term
What should be considered the minimum refresh rate for a monitor?
Definition
60 Hz
Term
Which output device is ideal in situation where you want to display output on a large wall or whiteboard for a large audience?
Definition
A projector
Term
When multiple output devices are connected to a computer, what is the result of selecting the Extend display option on a Windows machine?
Definition
The primary monitor will show the typical desktop and the second monitor will provide extra space for separate applications
Term
What will the duplicate option do with a second monitor?
Definition
The same output will be visible on both displays
Term
What will the Projector Only do with a second monitor attached?
Definition
This will disable the primary display and show output on the secondary display
Term
In what way does an organic light-emitting diode (OLED) display differ from an light-emitting diode (LED) display?
Definition
It uses organic compounds that emit light when subjected to an electric current
Term
What does the aspect ratio of a display device refer to?
Definition
The proportion of width to height of a display
Term
Describe a privacy filter?
Definition
A physical screen attached to a monitor that prevents information from being seen by anyone other than the person in front of it
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