What are Plasma TVs

Plasma TVs or plasma TVs, are a type of flat screen televisions in the image is formed by small cells filled with ionized gas in the plasma state, like tiny fluorescent tubes. Plasma TVs are less than 10 cm deep, offer a picture quality similar to CRTs, have a wide viewing angle, 16:9 widescreen with and can play HD high definition images, the most common large format, from 37 to 70 inches.

Characteristics of plasma TV

Plasma TVs solved one of the biggest disadvantages of cathode ray tubes CRT televisions, large volume, since they are very thin screens can even be hung on the wall as if it were a painting.

The plasma TV screen consists of two panes of glass between which lie hundreds of thousands of tiny cells that contain a mixture of noble gases (neon and xenon) and correspond to the pixels. The gas is ionized cell becomes electrically and plasma, emitting light.

Here are the main characteristics of plasma TVs:

Size: Although the plasma TV market from 22 to 90 inches, the most common are the large format, 37 to 70 inches. Weight and dimensions: Plasma TVs offer little thick, less than 10 cm, the large format plasma TV and a relatively light weight. Connections: Plasma TVs tend to carry both analog connections (Scart, composite video, S-Video, VGA) and digital connections (HDMI, DVI), so they can connect with any other device. High-definition plasma TVs generally can reproduce high definition images HD Ready and Full HD. Aspect ratio: Plasma TVs are widescreen with a 16:9 aspect ratio, unlike the CRT, with a ratio 4:3. Image Quality: Plasma TVs offer picture quality similar to CRTs, usually have a high contrast ratio of 15,000:1 to 30,000:1, along with brightness values ​​around 1,500 cd/m2. ? Angle of view: Plasma TVs have a wide viewing angle.

Disadvantages of Plasma TVs

Here the main drawbacks of plasma TVs:

The price of plasma televisions is usually high compared with other technologies. Plasma TVs can present problems of light and can disturb the surrounding brightness uniformity of the image. The viewing angle can be a drawback, since the contrast is usually not the same depending on where you look. Plasma TVs can suffer burn-called screening effect, so that if a plasma cell is damaged, it will be a black dot on the screen. The large format tend to give off much heat. The power consumption is usually high, sometimes up to 30% higher than other technologies.

Source: Plasma TV