computer monitors
Skip this Video
Download Presentation
Computer Monitors

Loading in 2 Seconds...

play fullscreen
1 / 16

Computer Monitors - PowerPoint PPT Presentation

  • Uploaded on

Computer Monitors. B. Konkoth. Types of monitors. CRT Cathode Ray Tube LCD Liquid Crystal Display. CRT. The filaments at the back of the cathode tube shoot a beam of electrons to the screen at the front of the tube

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
Download Presentation

PowerPoint Slideshow about 'Computer Monitors' - ivo

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
types of monitors
Types of monitors
  • CRT
    • Cathode Ray Tube
  • LCD
    • Liquid Crystal Display
  • The filaments at the back of the cathode tube shoot a beam of electrons to the screen at the front of the tube
  • This screen is coated with phosphor that glows when struck by the electron beam.
  • An LCD panel produces an image using a liquid crystal material made of large, easily polarized molecules
2 types of lcd panels
Active matrix

Most common

Contains cells of liquid crystal, a matrix of thin-film transistors (TFT)

provides a much brighter, sharper display

Passive matrix

Dual-scan display

Has a row of transistors running on the top of the screen as well as the left of the screen

2 types of LCD panels
video cards
Video cards
  • Interface between the monitor and the computer.
  • Also called graphic adapters, video boards, graphics cards, or display cards.
  • Sometimes the video controller with a video port is integrated into the motherboard.
methods of data transfer
Methods of data transfer
  • RGB video port
    • standard method of passing three separate signals for red, green, and blue which most video cards and CRT monitors use.
    • uses a regular 15-pin Super VGA port
methods of data transfer10
Methods of data transfer
  • DVI port - Digital Visual Interface port
    • digital interface standard used by digital monitor such as a digital flat panel monitor, and digital TVs (HDTV).
    • for a video card that only has a DVI port, you can purchase a VGA converter so you can connect a standard VGA cable to use a regular analog monitor.
methods of data transfer11
Methods of data transfer
  • S-Video – Super Video
    • this method sends two signals over the cable, one for color and the other for brightness, and is used by some high end TVs and video equipments.
    • it uses a 4-pin round port
methods of data transfer12
Methods of data transfer
  • Composite video
    • using this method, the red, green, and blue (RGB) are mixed together in the same signal.
    • this is the method used by television and can be used by a video card that is designed to send output to a TV
flat screen monitors
Flat Screen Monitors

LCD - Plasma

  • Picture Quality
    • Normal computing, both LCD and plasma screens will provide sharp and clear display
    • Watching Blu-Ray movies or playing high-definition games, Plasma screens have less picture lag and sharper color resolution than LCD displays.
lcd plasma
LCD - Plasma
  • Power Usage
    • LCDs use considerably less power than plasma displays, which use self-lighting pixels
  • Screen Burn-In
    • Plasma screens are more likely to experience screen burn-in (the screen becomes permanently discolored where the unchanging image was)
lcd plasma15
LCD - Plasma
  • Pixel Levels
    • LCD screens generally have more pixels per square inch than plasma
    • makes them ideal if you are working with complex spreadsheet programs or editing software
  • Size
    • Plasma monitors are usually ahead of the curve regarding their maximum size
    • the biggest monitors are plasma
lcd plasma16
LCD - Plasma
  • Lifespan
    • LCD monitors tend to be rated for 60,000-plus hours
    • Plasma monitors range from 20,000 to 30,000 hours
  • Price
    • Comparable pricing