What means to have a LCD screen?

LCD technology uses liquid crystal molecules placed between layers that polarize and rotate as you want to display a color or another. Its main advantage, besides its small size, is the energy savings.

The LDC screens are devices that provide excellent contrast and sharpness, but also are aesthetically beautiful because of its very small thickness and large size in inches. In addition, other advantages are, its really stunning image quality and the existence of some really cheap models.

LCDs give ratios ranging from 150:1 to 1000: 1, providing an excellent range of possibilities. For those who are unaware, the contrast ratio is the difference in light intensity between the brightest white and darkest black, a higher ratio means better color representation.

In terms of brightness, has been their main problem. However, the new technology TFT (Thin Film Transistor) has overcome the disadvantage and allows LCD TVs with active matrix, provide excellent performance in terms of gloss. Likewise, those equipments with TFT absorb ambient light that removes image quality as in the case of plasma screens, which do not, and substantially improves when removed artificially.

On the LCD screens backlight is needed because the image is formed by pixels but these do not emit light by themselves, so they need a light source to illuminate the pixels from the back.

A study shows that an LCD screen can be used for 50,000 to 65,000 hours unlikeplasma screens is only good for 30,000 hours.

In addition to this, the LCD TVs have some or all the following characteristics.

Full HD picture quality
WiFi and DLNA
Automatic brightness level
USB port
High Definition DTT receiver built
HDMI connections

In terms of size, the most recommended is a 42-inch LCD TV, suited to all needs can be equally effective in a bedroom, living room, playroom or even in workplaces. Thissize allows us to appreciate widely the images on the TV without any problem and with great intensity and realism.