subject: 4 Rear-projection Dlp And 3lcd Tv Tour Who Cattle? - Rear Projection Tv, Dlp-hc Network Appliance [print this page] < BR>
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With the improvement of housing conditions, many people have their own big HOUSE. Acquire a large screen TV, a lifestyle change, which is decorated with a large living room needs, but also see a new generation of high-definition disc HDDVD and BD essential, it is to watch on Jan. 1, 2006 formally launched the high-definition television CCTV channel the necessary investments.
Currently on the market large-screen TV, in addition we have often said these two types of LCD and plasma flat panel TV, that projection TV. The rear-projection TV camp can be divided into CRT, 3LCD, DLP, LCoS, etc. 4 major factions, which has jurisdiction over LCoS rear-projection LCoS, D-ILA and SXRD are three.
Different views of the CRT rear-projection
That projection, the oldest than CRT rear projection. But in recent years, it has been from the flat-panel TV manufacturers, "demonizing" critical, was devoid of any merit, "CRT rear projection" transitional product or eliminated almost synonymous with the product. In fact, CRT rear-projection is a flat-panel televisions, including all the big-screen TV in the most mature product, because technology is mature, prices are very cheap, even though imports from Japan 43-inch CRT rear-projection TV prices are only five or six thousand dollars only. Highly developed in the U.S. economy, CRT rear projection is also considered as a large-screen TV is still the mainstream product.
CRT rear-projection brightness, well settled, even in the normal view can draw the curtains during the day. CRT rear projection set-top box as long as you can see then is vigorously promoting digital cable television, many of which can support CRT rear-projection TV 16:9 aspect ratio of HD television programs, the United States, many TV subscribers is to use CRT rear projection TV machine to watch high-definition television programs. CRT rear-projection TV before life was widely criticized in tackling the problem, projection tubes can be used up to 25,000 hours, even 8 hours a day boot, you can use 8 to 10 years, and CRT rear-projection CRT after aging in , simply replace the CRT can also be used.
Currently, CRT rear projection is still the main drawback is that the contrast is not high enough for high-brightness and dark scene performance was poor, sometimes television geometric distortion.
LCoS bloom 3
LCoS (Liquid Crystal OnSilicon) called liquid crystal on silicon, which combines semiconductor and LCD technology, silicon-based chip, in the diagonal of 0.5? 1.0 inches of silicon CMOS integrated one million transistor arrays, generally LCoS imagers, light sources, lighting systems, division and Light system, projection lens, the cooling system composed of several parts.
LCoS rear-projection TV currently the industry is mature and endless debate. Judging from the works, it requires a long exposure to bright light reflective LCoS chip surface, as the liquid crystal glass and silicon substrates of different thermal expansion coefficient will cause pixel distortion, a major area of stain. In 2001, an international brand in the U.S. market launch of the 700 test LCoS rear-projection TV, due to technical and quality issues, this 700 "to ask the way Stone" was the second year of all strokes back. Intel and Philips have also studied the LCoS rear projection, it is still difficult to overcome because of the key technologies, the manufacturing cost is difficult to reduce and eventually give up.
But Japan's Sony and JVC LCoS, with the film from the organic to the inorganic, the level of the liquid crystal layer to the vertical arrangement, developed two branches SXRD LCoS and D-ILA. At present, 60 and 50-inch Sony SXRD rear projection has been in the United States, but the output is not high, the aircraft was sold in the United States more than 3000 U.S. dollars, but also see the Chinese market. The JVC's D-ILA rear projection in October of this year on the market in China, but still very rare in the 23 markets.
