Display Technologies Flashcards
What is the most common TFT display that produces a decent display for a modest price. It uses only 6 bits for every color, Red, Green and Blue, and the 18-bit display will not reproduce the full 24-bit true color that video cards can send to it.
Twisted Nematic (TN) Display.
A better TFT display that creates a wider viewing angle and far better color re-creation. Graphics professionals use these, because they might better display what a printer picture might loo like.
In Plane Switching (IPS)
What is the technology called that current LCD displays use?
Thin-Film-Transistor (TFT) or Active Matrix Technology
Instead of using X and Y wires, one or more tiny transistors control each color dot, providing faster picture display, crisp definition, and much tighter color control than passive or dual-scan technologies could provide.
What are the three main component of an LCD monitor, and what do they do?
- The LCD Panel: It creates the image
- The Backlight: Illuminates the image so you can see it.
- The Inverters: Sends power to the backlight
What does CRT stand for?
Cathode Ray Tube monitor.
What is an LCD panel’s response rate?
the amount of time it takes for all of the sub-pixels on the panel to go from pure black to pure white and back again. This is roughly the same concept as the CRT refresh rate, but with one important difference. Once the electron gun on a CRT lights a phosphor, that phosphor begins to fade until it is lit again. An individual LCD sub-pixel holds its intensity until the LCD circuitry changes that subpixel, making flicker less of an issue on LCDs.
What does a video card need to support to run a 120-hz monitor or television?
Dual-Link DVI
What are Hertz?
Hertz is the number of times your monitor refreshes in one second. The higher the hertz, the better games and video will appear. Think of the old animation trick where you take a pad of paper and draw a picture on every page and flip through it, so it looks like the picture is moving. That pad of paper is your monitor. If you flip through 60 pages of that pad in one second, then you were at 60 hertz.
The Refresh Rate
What is Resolution?
Dimension of pixels across the screen
How does the Refresh Rate work on a LCD TV?
The refresh rate for an LCD monitor refers to how often a screen can change or update completely. Think of the refresh rate as a metronome or timer and you’ll be closer
In Projector Technologies, what does the Lumens stand for?
How the brightness of a projector is measured.
In Projector Technologies, what does Throw stand for?
A projector’s throw is the size of the image at a certain distance from the screen. All projectors have a recommended minimum and maximum throw distance that you need to take into consideration.
What’s another term for a VGA cable?
HD15
Name the three different varieties of DVI connectors
- DVI-D: Is for digital connections.
- DVI-A: Is for Analog connections. (for backward compatibility if the monitor maker so desires)
- DVI-A/D (or) DVI-I (interchangeable): Accepts either an A or D
Dual Lin DVI uses more pins thus increases the maximum throughput.
What are the specs of SXGA?
Resolution: 1280x1024
Aspect Ratio: 5:4
Native resolution for many Desktop LCD monitors
