LCD and CRT Monitors advantages and disadvantages

CRT (Cathode Ray Tube) Monitors


It resembles a television set and uses the same technology.


Advantages of CRT over LCD


1. Color rendering/ Color Clarity and Depth- The contrast ratios and depths of colors displayed were much greater with CRT monitors than LCDs

2. Multisync Capable - ability to easily scale to various resolutions. By adjusting the electron beam in the tube, the screen can easily be adjusted downward to lower resolutions while keeping the picture clarity intact.

3. High Refresh Rates

4. They are inexpensive- appealing to those on a budget or those that use their computers very little.

5. Can be viewed from any angle

6. They are dependable

Disadvantages of CRT

1. Size and weight of the tubes- They are heavy, weighing between 30—50 pounds (13-23 kilograms) The larger the screen, the bigger the size difference.

2. They take up a lot of desktop space being very deep.

3. They're environmentally unfriendly

4. They emit a fair amount of low-frequency radiation which is unhealthy

5. Power consumption- The energy needed for the electron beam means that the monitors consumer and generate a lot more heat than the LCD monitors

6. Generate Excess Heat

7. The constant light barrage and scan lines of a CRT tube tend to cause strain on heavy computer users


LCD (Liquid Crystal Display) Monitors

Advantages of LCD over CRT


1. Smaller and Lighter- LCDs or flat panel displays weigh under 10 pounds (<4.5 kilograms) and are only a few inches thick (<7.5 cm).The size and weight of an LCD monitor can be upwards of 80% lighter than an equivalent dimension CRT screen. This makes it possible to users to have larger screens for their computers than was possible before

2. Energy Efficient- Consume only one-third to one-half the power of CRTs. Their consumption is in the region of 25 -50 watts compared to CRT which consume like 60-80 watts for a 15 inch model to almost 70 to 150 for 17 and 19 inch models.


3. Emit very little radiation

4. Causes Less Eye Fatigue- Provide a crisp bright display that's easier on the eyes. The lower intensity of the LCD monitors coupled with their constant screen display of pixels being on or off produces less fatigue for the user.

5. Aesthetics: LCD monitors are aesthetically very pleasing to the eye being slim and stylish.

6. Image Brightness- They offer almost twice the brightness compared to the CRT monitor.

7. Magnetic Interference- Many of the LCD monitors come with stereo speakers built-in and need not be shielded for magnetic interference


Disadvantages of LCD


1. Blurry Images outside Native Resolution- an LCD screen can only display the number of pixels in its matrix and no more or less

2. Motion Blur on Fast Moving Images- fast-moving images would "ghost" or create distracting trailing artifacts due to the lower refresh rates of LCD technology.

3. Some Models Have Reduced Color Clarity

Reference:
www.pcreview.co.uk
www.wisegeek.com
http//:compreviews.about.com