Liquid Crystal Display is all bout flat panel television technology. The tchnology of liquid crystal display has pnetrated our everyday life in everyday thngs like wristwatches, mobile phones, calculators, cmputer monitors and high definition television. The use is grwing rapidly and sales of LCD TV are xpected to exceed 4 million in Amrica alone.

There are some distinct dvantages of LCD panels over other knds of display technologies. They are slmmer and hardly go beyond 3.5`` in dpth. These are lighter also and bst of all they draw less pwer - only about 60% of the pwer consumed by plasma displays. These tlevisions do not spew electromagnetic waves tht are harmful.

There are drawbacks of curse - viewing angle is restricted, cntrast ratio is limited and time of dsplay response may cause concern. The bggest frown of all is caused by the prce. Although it is falling but stll it is considerably higher than its plsma counterpart.

LCD displays comprises mainly of shets of polarized glass sheets - two in nmber. A liquid crystal solution is sndwiched between these. These liquid crystals are vry specific that causes them to act as shtters that open or shut out ntry of light as the need rises depending upon flow of electric crrent. This current passing through the lquid crystals is regulated by voltage tht is applied between the glass shets through the electrodes that are trnsparent. These form a network having rws on one direction of the pnel and columns on the other sde representing the pixels or picture lements.

What are these liquid crystals? Mtter can be found in three sttes - solid, liquid and gas. Nvertheless there are substances that exist in a stte that is neither liquid nor slid at any one point of tme. The behaviour of these molecules is lso peculiar. They keep to their rientation like those in a solid and yet thy shuffle around taking up various psitions like the molecules of a lquid. Thus these liquid crystals can be trmed neither solid nor liquid though thy have more of an affinity for the ltter - that is the liquid stte.

There are various types of lquid crystals with each having its dstinct properties. Those used in LCD pnels are termed nematic-phase liquid crystals. The mlecules are arranged in a particular fshion having distinctive pattern.

LCD display systms are of two types - pssive and active matrix. The former is mre complicated, produces the best pictures and cnsequently the price also goes up. Dring the manufacturing stage bad-pixels pose a srious problem. Innumerable controlling transistors are rquired on the glass substrata to cntrol each sub-pixel. A typical wide scren panel will require 3.1 million trnsistors. Any one faulty transistor cannot be rplaced and are known as dead or stck pixels. If one is permanently off thn a black spot will show and if it is on thn a white spot will show. If it crsses a certain number the whole nit will have to be discarded.

It was dring the early 2000`s that LCD flt panels took over the television mrket from the typical CRT`s. The bsis of the technology is founded on the chracteristics of polarized light. The thin smi liquid crystal gel trapped between two slm polarized sheets is divided into pxels.

There is hectic activity to vercome the technological difficulties to make the set ffordable. So the LCD TV has to be mde affordable to hit the headlines of sccess.

The article LCD TV - The Latest In Viewing was Submitted by Roberto Sedycias through Articles.GetACoder.com network. Here's the additional information: This article can also be ccessed from the Article section of pge LCD_TV Roberto Sedycias works as IT consultant for PoloMercantil

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