2011年2月15日星期二

DLP and Plasma


Plasma and DLP are two relatively new display technology, these techniques has begun its share extensive introducing competition of TV advertising market hi-resolution. Although similar target audience these technologies widely divergent garages - returned way process information.

The DLP (digital light processing) technology using a small digital micro mirror device (DMD) tilted more than 1.3 million people are more micro mirrors - to human width (things) hair - toward or away from (off) the illuminant DLP inside. This process create light or dark pixels back projection screen. Light and then filters, with a kind of color wheel, 120 times per second, produced by the rotation of the right color. In short, the color level that the findings highlight the DLP image of color filters backlighting as long as the correct strength of white light. There are 4 main component systems: DMD chip, color dish, light sources and optical. The light from light through the color wheel filtering and chips will switch DMD mirrors on or close it with color reflect leave them, produce a kind of image.

The DLP has good color in some areas, but it is frequently some green spotty - missing here, some blue. The DLP TV is relatively new inventions, so it is possible that a area of great progress in the future. When the color is the first-class vitality and the DLP projection solutions when compared to other rear, color appears dim signal (bright yet slightly pale or dark) making beside the plasma. Therefore, Toshiba, panasonic, plasma television was chosen by 25% in samsung and RCA DLP model.

Because of plasma display element plasma TV is actually a manufacture process of natural gas envelope containing rare thin air will increase gas pressure on the envelope. This increases the amount, need how many energy movement, reduces the plasma, make the buzzing tone or fan noise units (hard) from the increase. These problems usually begin to occur in about 6,500 feet. Later some plasma manufacturers such as NEC and SONY introduced can deal with special models to 85 feet high increase without noticeable unit of noise.

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