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English to Chinese: Display - Flat Panel Roundup Detailed field: IT (Information Technology)
Source text - English Display - Flat Panel Roundup
By Jeff Sauer
When it comes to monitors, it's no news flash that flat and thin are cool. Flat and thin have been tauntingly tempting since the first plasma monitors appeared with rich, sharp colors and equally opulent prices, and since the first flat panel LCDs bumped CRTs off elitist desktops. It's been a slow evolution to shed the prohibitive early pricing and to fulfill market expectations. That evolution, however, is now clearly well on its way.
Over just the last year or two, flat panels have matured technologically and reached a critical mass to support much more aggressive pricing. In turn, those more affordable prices have greatly expanded the installed base of flat panels in screening rooms, boardrooms, on-air studios, and editing desktops. And new affordability and availability has also helped ignite the markets for public signage in cinemas and shopping malls and, of course, consumer televisions.
Indeed, the emergence of a vibrant consumer market is the biggest change in flat panels, and the effect on the pro A/V market is mixed. According to Pacific Media Associates, it's been a little less than two years since consumers started buying more “large” (24in. and above) flat panels than professional markets. Today, the consumer market accounts for at least 75 percent of flat panel business. While increased consumer demand has ultimately lowered pro A/V prices, it has also reversed the business production strategies of manufacturers. Just a year or two ago, most manufacturers would focus R&D and industrial design primarily on the pro A/V market, developing and releasing industrial models before consumer models. Today the opposite is true.
Given the potentially enormous volumes, consumer models with built-in TV tuners, minimal connectivity, and trendy industrial design are now built and released before professional models with component inputs, expansion slots for networking, and other industrial features. For example, Sharp should be ready to ship its consumer version of the highly anticipated 45in. LCD around the time you read this, but it likely won't have the industrial version until next year. The same is true of Samsung's 46in. LCD panel.
A lot of consumer flat panel success has come from LCD TV products, which hints at a technology war anticipated for a couple of years now. Plasma makers have already responded to the increased competition by lowering prices. The expected battle between the competing flat panel technologies, however, isn't as direct as one might think.
Plasma displays function differently than any other TV technology in that they actually produce light independently at each pixel on the screen, as opposed to projecting a separate light source through or off of other elements to conjure a picture. A plasma "screen" is actually a dense network of individual cells, three for each pixel of the display (coated with red, green and blue phosphors, respectively). Each cell is impregnated with a rare-gas mixture and connected to an individual electrode. When the electrode for a given cell is charged with an electrical voltage, the gas is converted to a plasma state and emits a burst of ultraviolet light; this in turn causes the phosphors to react and produce bright visible light at the pixel level. By varying the voltage and intensity of the electrical charge, the proper combination of red, green and blue light is produced in each pixel to combine into a bright, colorful composite image. Plasma TVs are available in sizes from about 40" up to 70"+, but be prepared for sticker shock as your size desires increase.
Obviously, plasma TVs are desirable for their sleek form factor — about 4" deep and wall-mountable, they're undeniably sexy. Furthermore, plasma produces a very bright image that can be viewed in a well-lit room, with superb color accuracy and saturation. It's a matter of opinion, but many videophiles regard plasma's color vibrancy as beyond compare among current technologies. Because the light is produced at the screen rather than projected onto it, focus is consistent and reliable across the entire screen surface, and plasma screens can be viewed from angles as severe as 160 degrees off-axis without detrimental effect. And plasma's accurate pixel structure produces a picture that is geometrically perfect from edge to edge and corner to corner, with uniform light output and a crisp, lifelike image.
Due to the direct way it produces light, plasma can be especially susceptible to burn-in from static images such as stock-tickers and video-game gauges; however, newer displays have begun to incorporate "pixel-orbiting" technologies that shift images, almost imperceptibly, to limit the occurrence of burn-in. Additionally, although known for their high contrast (relative to LCD) and spectacular color saturation, plasma displays have historically had difficulty reproducing pure blacks. Recent enhancements have largely eliminated this problem, but sometimes at the expense of fine detail in dimly-lit areas of the picture.
The bottom line
Overall, plasma has maintained a reputation as the no-compromise high-tech TV display technology. While that's not entirely accurate, there's no question that a plasma TV on your living room wall will deliver amazing video performance — and, quite likely, a parade of drooling friends through your door as well.
的确，出现一个充满活力的消费市场，这是平板显示器产业发生的最大变化，对专业AV市场的影响也是多方面的。根据Pacific Media Associates的调查，不到两年之前，消费者购买的大尺寸平板显示器（24英寸以上）就已经超过专业市场，如今消费市场已占到平板显示器业务的75%。消费需求的增长最终拉低了专业产品的价格，同时改变了生产商的业务战略。一两年之前，大多数厂商会将研发和设计的重点放在专业市场，优先研制发布工业型号，而不是消费型号，如今情况恰好相反。