Saving Technology Was A Breakthrough Application Of More Extensive Plasma
At present, plasma continue to make breakthroughs in conservation technology
, display technology has been widely used in military, industrial and other fields, but the false contour effect has yet to be resolved.
1993, Japan's Fujitsu Research Group to develop and produce full-color 21-inch PDP (plasma) displays. The following years, many companies around the world have produced a different size of PDP displays, and from 1998 into the PDP
TV Machine mass production stage. Since 2002, PDP TV is entering the commercialization stage, just a few years, PDP TV will become
Flat Panel TV The mainstream market, one of the products, which, LCD (liquid crystal) television and
CRT (Cathode ray tube) television show together formed a diversified structure. PDP and LCD's rapid rise, from around the world to promote and facilitate the development of digital high definition television, accelerating the age of television from analog to digital conversion process in the television age. After half a century of development, from a technical point of view, PDP TV products have gradually matured.
Saving technology breakthrough PDP are self-luminous display, and its power consumption and display image brightness is related to the higher brightness of the image is displayed, the greater its power consumption; display images darker, smaller power consumption. In other words, PDP power consumption and display the image of the average picture level (APL) is proportional to the average picture level the smaller the smaller the power consumption.
LCD itself does not light, with backlight bulbs as a light source, simply open the LCD power supply, backlight bulbs on power consumption. LCD power consumption and display of the image content does not matter, that is, and display images related APL.
When the display image signal APL is 30% or more hours, compared to the same size LCD, PDP power consumption than the LCD is small; when the show APL> 50% of the image, PDP power consumption than LCD.
PDP power consumption is mainly due to higher luminous efficiency is low. 42-inch, 50-inch PDP luminous efficiency of only 1.8lm / W or so, the peak brightness of 500cd/m2; If you continue to improve brightness, luminous efficiency in the same situation, would increase the power consumption. Therefore, improving the luminous efficiency of PDP is facing one of the key technical issues.
Around how to improve luminescence efficiency, the world's leading companies, research institutes and other relevant units launched a cooperation for the working principle and structure of the PDP, drive circuit and the manufacturing process were studied to optimize discharge gas composition, improved pixel unit structure, using the new type of protective film and efficient phosphor materials, optimization of electrode design, improved driving circuit. According to statistics, the current luminous efficiency has been increased to nearly 2.5lm / W, lab has reached 5lm / W. This greatly reduces power consumption to PDP, the brightness contrast are greatly improved, PDP image quality is also a qualitative change. If the PDP luminous efficiency to 2.5lm / W, in the same size, PDP and LCD power consumption is basically the same or lower than LCD; if the PDP luminous efficiency to 5lm / W, the 42-inch PDP power consumption and 29-inch CRT the same power consumption, only tens of watts.
False contour effect to be resolved
In the PDP TV viewing still images is clear, but watch moving images will appear gray color disorder disorders and problems. People's eyes when watching moving images, such as a moving object in the image on the PDP screen from left to right movement, but the viewer's eyes follow the movement of objects while moving, this time moving object perceived by the observer, the image in some places, especially the more obvious changes in light and dark edges may appear or bright or dark the virtual shadow, known as dynamic false contour effect.
False contour effect is the image movement and the human eye to follow moving objects moving simultaneously generated when an interference.
Saving Technology Was A Breakthrough Application Of More Extensive Plasma
By: sisi
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