LCD- Liquid Crystal Display. Television using this technology has become quiet famous nowadays. They consist of several pixels then followed by a fluorescent lamp. When light falls on this fluorescent lamp, an electric current is generated, which in turn produces light variations, which are nothing but the pictures those we see on the screen. A liquid is used in them which have a crystal structure.
The size of the screen in the LCD varies from 14-46 inches. The marvel of engineering is that it is only about two inches in thick. They are very attractive to see. They are highly catchy because of their size. Because of their small size, they occupy small space. Many people like to compare its beauty to a woman.
There is an improvement when it comes to response time. In the past there was a long time lag and pictures used to remain on the screen even if some operation was performed. However due to improvement in technology such problems are not persistent. Generally, response time depends on the size and quality of the liquid crystalline the TV. The contrast ratio that is the ratio of lightest white to the darkest black is 1000:1.It just gives you wonderful watching experience. Researches are going on, to see that this ratio can be enhanced to further higher limits.
The average life of a LCD TV is 60,000 hours. Assuming an average use of 8 hours per day a LCD TV can serve you for about 20years.The life of these TVs depends on the back light as there is nothing else that can affect their performance except for the crystal that is present in them. Technicians have designed methods by which you can replace these crystals.
These can withstand air pressures as a result of which they are used in airplanes also. There is a discussion going on whether to use mercury in place of the fluorescent lamp by maintaining the safety levels at the same time. It won’t come in contact with spectator so it is safe.
There are also other features like the Picture-in-Picture feature where the user can see multiple channels at a time. He need not waste the time, waiting for the ads to finish. There are plans to introduce two back lights. The advantage of having this is that you can have better picture and color variance.
LCD TV is the best example of a modern day technology. It is simply superb and the best. It gives you a fantastic entertaining experience.
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