Anne Ahira’s On LCD TV
LCD TV? Not a stranger word anymore I think. In recent day, most of the electronic shop sells LCD TV. This model of TV is trend this day. But do you know what LCD TV mean is?
Liquid-crystal display televisions (LCD TV) are televisions that use LCD technology to produce an image. The technology used is generally TFT, because this allows for reduced size, especially depth reduction. Benefits also include lower weight and reduced energy consumption when compared to other display types. LCD televisions by nature can be and are often used as computer monitors.
LCD technology is based on the properties of polarized light. Two thin, polarized panels sandwich a thin liquid-crystal gel that is divided into individual pixels. An X/Y grid of wires allows each pixel in the array to be activated individually. When an LCD pixel darkens, it polarizes at 90 degrees to the polarizing screens.
This pixel has darkened. The pixel darkens in proportion to the voltage applied to it: for a bright detail, a low voltage is applied to the pixel; for a dark shadow area, a higher voltage is applied. LCDs are not completely opaque to light, however; some light will always go through even the blackest LCD pixels.
I hope my explanation above can help you to know more about LCD TV.