TV Flat Story : LCD and Plasma TV, a death blow for CRT TV

tv flat screen

Terminology of TV flat used for LCD and Plasma TV which have the real flat screen. Flat TV has different technology than the CRT TV, a conventional television we used to know. Let’s find the difference of them.

Old Technology of CRT TVs

CRT or Cathode Ray Tube is the old standard for televisions. Each TV has a vacuum tube behind consists of an electron gun that is directed towards a screen coated in phosphor and made the phosphor to heat up. This action causes colors on the screen which are used to produce an image to watch.

Technology behind the LCD TVs

When someone switches on an LCD TV, a light is triggered at the back of the television set to turn on. Within the spectrum of this light, people can find numerous pixels that feature microscopic liquid crystals. Two filters polarize glasses and surround each crystal. The crystal is rotated, which allow light rays to enter the filters. Sub pixels in LCD TVs have three colors, namely red, blue, and green. Light rays will be stimulated the sub pixels to produce a particular color, which is important to the creation of clear and moving pictures in flat TV.

Plasma TVs Technology

The main components of plasma TVs, another type of TV flat, are two glass sheets that enclose numerous pixels and gases known as xenon and neon. Every pixel within the glass sheets is surrounded by a chemical named phosphor, which adds color to the pixel. When a person switches a plasma TV on, the electricity will pass through the glass sheets and will trigger phosphor in each pixel to create a light. The light produced by phosphor is very important since it colors the pictures that people seen when they watch television shows on their plasma TVs.

The uses of latest technology in LCD TV and Plasma TV make they have real good quality of picture and sound that can not be competed by CRT TV. TV flat also slimmer, so thin that makes TV flat easier to move and does not occupy a lot of space. All those criteria fascinating more and more people to choose flat TV and it means a death blow for CRT TV.