How many different types of computer monitors are there?

Answer 1

Visual Display Units are more commonly known as monitors, the electronic visual displays used by computers. Televisions use the same various visual-display technologies as Computer Monitors. Most VDUs consist of screens, circuitry and inner workings and a protective decorative enclosure. The most common VDU unit types are CRT, LCD and plasma displays.

CRT, or Cathode Ray Tube, technology is the oldest technology among visual-display units. Invented in the late 1800s and first used in televisions in the 1940s, CRTs were the dominant visual-display unit until the late 1990s, when they began to be replaced by LCD technology. In CRT monitors, a funnel-shaped glass tube projects electron beams back and forth across the inside of the screen, illuminating phosphor dots in a series on many lines that appear on the outside of the screen--these lines compose an entire screenful of imagery. CRTs are the largest and heaviest of monitor types, usually sporting large display surfaces and smaller, boxier back ends (to house the tube). Screen surfaces on CRT displays are curved; in general appearance, these monitors resemble non-flatscreen television sets, and their screens feature a 4:3 ratio (square-shaped) rather than widescreen format. CRTs use the most power of all displays (around 150W for a 17-inch monitor), cannot be used with laptops and have a subtle "flicker" in their display, which causes eyestrain. However, CRT displays feature simple and solid technology, can be seen from a wide viewing angle and are manufactured at significantly lower cost than alternative display units.

Liquid crystal displays (LCDs) began as display units for calculators and laptop screens, but started to quickly replace CRT monitors in the latter part of the twentieth century. In LCD technology, light shines through a combination of liquid crystals and polarized glass to create an onscreen image. LCD screens are flat rather than curved and generally housed in slimmer, smaller and lighter casings than CRT displays. LCD offers a higher resolution and better image contrast than CRT, and because LCD technology doesn't flicker, it causes less eyestrain. These displays often come in widescreen format as televisions, and both widescreen and 4:3 ratios as monitors. LCDs generate less heat and consume as little as a third of the power of CRTs. However, LCDs feature a higher price and a smaller viewing angle than CRT screens.

Plasma screens create a high-resolution picture by lighting up thousands of tiny dots (or "pixels") with a high-energy electron beam. Plasmas combine three pixel colors (red, green and blue) to create the entire spectrum of colors, resulting in richer colors than LCD or CRT displays. Plasma displays are often very large widescreens generally used as televisions, but many plasmas can be used as computer displays. Though they are larger and heavier than LCDs, plasmas are generally only about six inches thick. Plasma display units usually consume slightly more power than LCD displays, depending on the resolution. Plasma viewing angles are very wide, but this technology comes at a higher cost than other visual-display units.

Answer 2

There are two types of computer monitors which are as follows:-

1. CRT Monitor: Some computer monitors generate output with the help of cathode ray tubes. This type of device is called the CRT (or, cathode ray tube) monitor. Some computer users prefer this style because it offers a richly colored display and does not break easily. However, CRT monitors can be bulky and take up a lot of desk real estate, be very heavy to carry, and they require a lot of power to run properly. Moreover, the picture screen can distort, display a "flicker effect," or burn out over time.
2. LCD Monitor: The newer types of display units are liquid crystal display monitors (or, the LCD monitor) and plasma screen monitors. LCD and plasma screen styles are much lighter than their older CRT counterparts. LCD models in particular require less power to run. However, these newer models can be more expensive than traditional computer monitors, and may be susceptible to screen pixel burnout. Fortunately, as plasma and LCD monitors become more popular, monitor repair options increase.
3. TFT MONITOR:Short for thin film transistor, a type of LCD flat-panel display screen, in which each pixel is controlled by from one to four transistors. The TFT technology provides the best resolution of all the flat-panel techniques, but it is also the most expensive. TFT screens are sometimes called active-matrix LCDs.

Answer 3

There are many types but the two most well used or LCD and CRT computer monitors.