How Computer Monitors Work

By: Jeff Tyson & Carmen Carmack

Monitor Trends

DisplayPort Standard

The Video Electronics Standards Association (VESA) is working on a new digital display interface for LCD, plasma, CRT and projection displays. The new technology, which is called DisplayPort, supports protected digital outputs for high definition and other content along with improved display performance.

According to VESA, the DisplayPort standard will provide a high-quality digital interface for video and audio content with optional secure content protection. The goal is to enable support for a wide range of source and display devices, while combining technologies. For example, the audio and video signals will be available over the same cable -- a smaller video connector will allow for smaller devices such as notebook computers, and the standard will enable streaming high definition (HD) video and audio content.


Organic Light-Emitting Diode

Organic Light-Emitting Diodes (OLEDs) are thin-film LED (Light-Emitting Diode) displays that don't require a backlight to function. The material emits light when stimulated by an electrical current, which is known as electroluminescence. OLEDs consist of red, green and blue elements, which combine to create the desired colors. Advantages of OLEDs include lower power requirements, a less-expensive manufacturing process, improvements in contrast and color, and the ability to bend.

Surface-Conduction Electron Emitter Displays

A Surface-Conduction Electron Emitter Display (SED) is a new technology developed jointly by Canon and Toshiba. Similar to a CRT, an SED display utilizes electrons and a phosphor-coated screen to create images. The difference is that instead of a deep tube with an electron gun, an SED uses tiny electron emitters and a flat-panel display.

For more information on computer monitors and related topics, check out the links below.

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More Great Links


  • PC Magazine Monitor Buying Guide (,2533,a=114453,00.asp)
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  • CNet Monitor Buying Guide (
  • PCWorld How to Buy a Monitor (,guid,9,page,2,00.asp)
  • Monitor World FAQ (
  • ViewSonic Monitor University (
  • DisplaySearch Press Release: LCD Rise in Use (
  • How Many Dots Has it Got? (
  • Windows Dual Monitor Support (
  • PCWorld, Double Your Fun With a Second Monitor (,aid,120396,pg,1,00.asp)