A.J. Guzman Najinder Mann Terry Bankhead HARDWARE REPORT.
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Transcript of A.J. Guzman Najinder Mann Terry Bankhead HARDWARE REPORT.
A.J. Guzman
Najinder Mann
Terry Bankhead
HARDWARE
REPORT
• CRT stands for Cathode Ray Tube.
• Both televisions and monitors can be made using CRT technology.
• CRT monitors are deeper and wider than their LCD counterparts.
• They also have more vivid colors and a longer life
• The major components of a CRT monitor are the fluorescent screen and electron guns.
• Liquid Crystal Display
• A thin, flat electronic visual display
• uses the light modulating properties of liquid crystals.
• LCDs are more energy efficient andoffer safer disposal than CRTs.
• Its low electrical power consumptionenables it to be used in battery-powered electronic equipment.
• It is an electronically-modulated optical device madeup of any number of pixels filled with liquid crystals and arrayed in front of a light source (backlight) or reflector to produce images in color or monochrome.
• LED stands for Light Emitted Diode
• LED display has a background produce with LED instead of the convectional fluorescent LED
• Newest types of computer monitors on the market today.
• Cathode-ray tube monitors were the first computer monitors out.
• CRT monitors contain millions of tiny red, green, and blue phosphor dots that glow when struck by an electron beam.
• A shadow mask is a thin metal screen filled with very small holes.
• Three electron beams pass through the holes to focus on a single point on a CRTdisplays' phosphor surface.
• The unwanted beams are blocked or "shadowed."
• Next step in the line up of computer monitors.
• These monitors work by blocking light
• An LCD Monitor is made up of two pieces of polarized glass
• Electrical currents cause the liquid crystals to align to allow different levels of light to pass through to the second substrate and create the colors and images that you see.
• http://static.howstuffworks.com/flash/lcd-twisted.swf
• http://www.ehow.com/video_4973278_a-computer-monitor-work.html
• Light Emitting Diode displays are the most recent line up of monitors.
• The Diode emits light when stimulated by an electrical current, which is known as electroluminescence.
• LEDs consist of red, green and blue elements, which combine to create the desired colors.
• Advantages of LEDs include lower power requirements
• Less-expensive manufacturingprocess, and improvements in contrast and color.
• Since LED monitors are the newest of the monitors, they have the highest average cost.
• On average a LED monitor can cost from $200 to $400.
• A budget-priced LCD monitor can be purchased for about $100 to $200.
• The average CRT monitors cost as cheap as $50 to somewhere around $200.
• CRT monitors are the oldest of the three types of monitors therefore they are the cheapest.
1. How does a CRT monitor work?
• Phosphor dots glow when struck by an electron beam, to create the picture that we see.
2. What are the 3 types of computer monitors?
• LCD, LED, CRT.
3. What does CRT stand for?
• Cathode-ray Tube.
4. What does LED stand for?
• Light Emitting Diode.
5. What does LCD stand for?
• Liquid Crystal Display.
6. What 3 colors are LED lights?
• Red, Blue, Green.
7. When a Diode Emits light what is it known as?
• Electroluminescence
8. What is a shadow mask?
• A shadow mask is a thin metal screen filled with very small holes.