TV is the number one entertainment medium today and there is an explosive demand for TV sets. To meet this, market is flooded with different types of TV’s. The TV sector can be considered as the most innovative with new technologies emerging frequently.
Some of the main types of TV’s are as follows:
1. Cathode Ray Tube: CRT as it was known generally uses cathode ray tube as a picture device and is part of the standard television of recent times. An electrons stream is fired at a big phosphor coated screen, creating a moving image. These TV’s are extremely durable and cheap making them popular with those on a budget.
2. Plasma TV: These have created a niche around the world and have a devoted clientele. They are offered as Flat Panel TV’s with the maximum sharp pictures. Plasma screens consist of tiny cells filled with neon or xenon gas embedded in plasma. The cells are charged with electricity and filtered to match a certain color. Plasma offers the sharpest and richest images and a viewing range that makes it comfortable for any person in the room to view. They are flat so they don’t take up much space. But disadvantage is that they are expensive and slightly heavy.
3. LCD TV’s: It is one of the fastest growing and most popular types of TV’s. There are tons of choices in the LCD (Liquid Crystal display) market from flat panel to rear projection. Flat Panels are mostly high in popularity because of their narrow, lightweight body that makes it convenient for people who want to use it as TV as well as computer monitor. LCD TV’s use a screen filled with liquid crystal, backlit by a lamp and which filters the light to create the picture. Like Plasma TV’s they create a highly sharp picture and vibrant colors. They are much lighter than plasma screens and come in competitive sizes as well. But they tend to be more costly than plasma screens. Viewing angles cause a problem and fast moving images can be blurry.
4. DLP’s: Digital Light Processing Televisions are high- end, technologically advanced models. They make use of a DMD (Digital Micro mirror device) chip which is an optical semiconductor that processes light such that viewers have a unique viewing experience. This technology was developed by Texas Instruments. These TV grace the home of the rich and powerful.