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CNCTC Articles - Excellence in IT TRAINING

Why LCD monitor?

by: Ailene B. Misa | 19 Jan, 2010 07:52:25

Article Word Count: | Viewed: times


Nowadays most desktop computers come with LCD monitor regardless of its size. Even most of the televisions are already flat screen.

What is with LCD that it is already grasped with most computer manufacturer? What are the advantages it can give the user compare with the traditional CRT monitor? Is there any drawback of having an LCD monitor?

If you go around, most of the banks, supermarkets, mall most of the counters uses LCP screen for their cash registers. Most of the schools also use the same. What's with LCD that every one is going after it?

Before we discuss it further let us define first what is LCD?

LCD is an abbreviation for Liquid Crystal Display. It refers to a low-power and flat display used in computers and some electronic devices. LCD displays uses liquid crystals arranged in front of reflector that produce images. Each crystal allows light to go by or block it. This can only be done with electric current: when you apply current in the crystals floating in liquid enclose in two parallel electrodes, these crystals will align, and make varying colors.

Display output of the CRT and LCD monitors are almost the same. But then, if you will opt to have the cheaper LCD monitor, you might have the passive matrix LCD monitor its display is lower compare to the quality display of CRT. On the contrary, Active matrix display output is fine as the CRT but it is more expensive.

Now let me give you some of the reasons why people are using LCD monitors.

Here are some of the features of LCD:
• Weight. It weigh almost half of the standard weight of a CRT monitor
• Handy. You can transfer your monitor anywhere at anytime. It only consumes less space of your working table.
• Electric consumption. It is considered as low powered display. It consumes only half of the electric consumption of CRT monitor. Very practical isn't it? This is the main reason why companies are switching for LCD monitor. Have you observed that already?


After hearing its benefits you might be jumping to the idea of buying an LCD monitor. Let me give you things you might consider for evaluating an LCD monitor.

• Size. The size of an LCD monitor is measured the same way for the CRT.
• Resolution. LCD monitor have single fixed resolution.
• Response Time. The period of time to apply necessary changes for change in resolution
• Input lag. The time the monitor process the display from the time it receives to display.
• Matrix Type. Active or Passive Matrix
• Brightness
• Contrast
• Input ports

Also, let me give you some of the common problems with LCD monitors.
• Most LCD are not capable of displaying low resolution due to scaling limitations
• Limited resolution
• CRT monitor has lower contrast ration than CRT
• LCD monitor has longer response time
• There are times when LCD monitor shows display blur
• Some LCD has limited viewing angle. It is very common to laptop screens.

So are you going to have LCD monitor for your own use?
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