PDP body technology from the beginning of the emergence of the AC way surface discharge color PDP TV in 1979 to 2006 has been 27 years of history, its technology and performance has been gradually improved and enhanced in 1993 developed into a 21-inch full-color PDP TV (pixels of 640 × 480), in 1996, the production of 42-inch widescreen pixels of 852 × 480, can display 16.77 million color PDP body television sets.
With the United States, Western Europe, Japan, South Korea and China's digital television research and broadcasting, in order to adapt to the needs of digital high-definition television, in 1998 launched a 42-inch 16:9 PDP body television, pixels 1024 × 1024, 1280 × 720 and 50 inches 55 inches of physical resolution of 1366 × 768, 16:9 PDP body TVs.
In order to cope with the challenge of LCD in the large screen size, improve the PDP TV screen size on the competition has never stopped. October 2003, LG launched a 76-inch PDP screen, less than three months, Samsung exhibited 80-inch PDP TV, to December 2004, Samsung exhibited a 102-inch PDP panel. In February 2005 Samsung launched another 102-inch PDP TV set with a physical resolution of 1920 x 1080, and now Panasonic has launched a 103-inch PDP TV set, which is on the market.
PDP TV works
On the working principle study, PDP TV is relying on high voltage to activate the special gas of the picture unit, so that it produces ultraviolet light to stimulate the phosphorescent material luminescence; and LCD TV is through the electric current to change the structure of the crystals in the thin film-type transistor of the LCD panel, so that the imaging.
In terms of imaging technology, PDP TVs use advanced "point-to-point" digital display technology, with a low loss rate for picture reproduction.
From a technical point of view, because the light-emitting PDP tube in the plane of uniform distribution, so that the center and edge of the display image is completely consistent, the distortion phenomenon is not obvious. And because its display process does not need to resort to electromagnetic fields, so the external electromagnetic fields will not interfere with it, has a better environmental adaptability.
PDP is a self-luminous display technology, does not require a background light source, so there is no angle of view and brightness uniformity problems. The design of using the same PDP tube with three-color phosphors*** also makes it possible to avoid focusing and convergence problems, allowing for very clear images.
The main features of PDP TV sets
(1) PDP TV sets, like CRT TV sets, use the principle of self-luminescence of R, G and B phosphors, so it has the characteristics of CRT TV sets. High contrast, good color reproduction characteristics, display realistic images and excellent picture quality.
(2) PDP TV is an inherent resolution TV that displays images in pixels and displays images in an addressable manner, which is the same as LCD, which is a flat-trigger TV, and therefore has the characteristics of flat-trigger TVs in terms of lightness and thinness.
(3) In the current display devices, the only PDP and DLP can be fully digitalized, in signal transmission and display does not require D / A conversion of the display device. Therefore, it has the advantages of digital TV display, also known as PDP is a digital CRT. so PDP in the digital TV has a larger space for development and application prospects.
PDP TV advantages
(1) PDP TV is easier to realize the large screen and large screen
If the 36-80 inches called large screen, 80 inches or more for the large screen, the PDP is easy to realize, to adapt to the requirements of the digital TV large screen, HDTV; although the LCD has been done to 65 inches or larger, but Low yield, in terms of large screen is more expensive than PDP.
(2) large viewing angle
In the flat-panel TV sets have the widest viewing angle, up to 160 ° or more, that is to say, the viewer in a different location, see the image of the brightness, contrast and chromaticity of the basically little change, close to the viewing angle of the CRT TV set, but smaller than the CRT, much larger than the LCD TV set.
(3) small response time, motion picture trailing time is short, high dynamic clarity. Better than LCD TV sets, and CRT TV sets are comparable.
(4) PDP is not like LCD using backlighting, but with CRT, the same as R, G, B color phosphor self-illumination, with more features
Brightness is not as high as LCD, but it changes with the average picture level (APL), APL high when the display image is bright, APL low when the display image is darker, so the contrast ratio is high, the image level is strong, high clarity, display image bright and clear. High clarity, the display image is vivid, bright, soft and natural; large color gamut coverage, good color reproduction characteristics, the display image color is bright and saturated, and CRT display image match; good brightness uniformity across the screen; because not subject to the limitations of the backlight lamp life, longer life.
(5) to achieve full digitalization
In CRT, LCD, PDP direct-view television sets, the only PDP TV sets can achieve full digitalization, that is, the end-to-end transmission process, are digital signal processing, not through the D / A conversion, will not produce signal distortion and loss of image information and image quality degradation; and CRT, LCD display of the image of the Brightness or gray scale of the image displayed by CRT, LCD are controlled by analog voltage, so the transmitted digital signal must be D / A conversion, which will cause signal distortion and loss of information and lead to degradation of image quality. Therefore, it can be said that PDP TV sets as a digital TV display terminal is a broad application prospects.
(6) PDP TV sets have the advantages of flat-panel TV sets
Flat, thin, lightweight, can be applied to wall-mounted mode; using line-by-line addressing and high-field frequency display, the image is not between lines and a large area of flicker; grating without geometric distortion, the screen center of the clarity of the edge of the same, the full-screen color purity is good; grating position, tilt is not affected by the geomagnetic effect; anti-explosive, anti-radiation, good security.
(7) Dynamic power consumption
In the high-brightness image or full white field signal, PDP power consumption is relatively large; but the display of ordinary brightness of the image, such as in the average image level of 40 to 50% and LCD power consumption is not much difference, the average image level of 30% or less, the PDP power consumption is lower than the LCD. Image of the average image level (APL) changes and changes when the APL is low, that is, the picture is dark when the power consumption is small; and LCD regardless of the picture is bright and dark, because the backlight is always open, the power consumption is basically the same. For example: with the same 37-inch PDP and LCD TV to watch the "Lord of the Rings" movie, PDP power consumption of 159W, LCD power consumption of 280W.
PDP TV and LCD TV difference
(1) PDP is for the TV and the product, LCD is for the product of information display
Television products Must meet the basic requirements for people to watch the movement of the picture: the movement of the focus is accurate, there can be no trailing (trailing surface is not clear, in fact, the main thing is that the TV trailing eye fatigue, is the formation of myopia is the most important cause of myopia, because the human eye is always constantly adjusting the object when watching in order to see clearly, long-term fatigue focusing on the ciliary muscle deformation of the eyeballs, like an autofocus camera, the focusing system is not in place, the image will be blurred, and thus the image will be blurred, and then the camera is not in place. (In place, the image will be blurred, thus forming myopia), the image gray level, color reproduction is true, color levels and so on the mandatory standards.
From the discovery of the LCD phenomenon to the invention of LCD monitors in nearly 100 years of history, LCD is used in a large number of electronic watches, electronic instrumentation display, handheld computers, laptops and desktop computers in the field of static display.
(2) PDP is more suitable for watching digital TV, movies, LCD is more suitable for watching a slower pace, the signal format is relatively high downloadable movies and discs
In the future, China fully open digital signals, PDP can be directly to the digital signal does not go through any conversion (A/D, D/A), so that users see the original digital TV. In particular, a variety of sports programs, action movies, etc., PDP has an unparalleled advantage.
LCD production is the highest in South Korea, South Korea in the traditional CRT TV field has been inferior to Japan, so South Korea will be the computer LCD monitor as the main object of development, with the LCD size increases, began to enter the field of television. We see that we generally feel very comfortable watching Korean romantic dramas on LCD, and that's because these shows have a soothing pace and bright, vivid colors.
How to buy PDP TV
(1) screen size to be satisfied
The screen is thin, the screen is large is the innate advantage of the PDP.PDP is a use of gas discharge display technology, and its principle of operation and fluorescent lamps are very similar.The reason why the PDP TV has become the preferred choice of many consumers, the most prominent feature is that in the realization of a large screen at the same time can be ultra-thin! PDP TVs can be thinned to less than 10 centimeters for products that are 42 inches or larger. Thin profile makes its advantages more obvious, especially suitable for wall-mounted large-screen TV. The popular size of large-screen PDP TVs is dominated by 42 inches.
Currently, Changhong and others, as the main manufacturers of PDP TVs, have massively launched large-screen PDP TVs over 50 inches in the market, expanding the mainstream size of the market. The large screen with big vision, as well as the exterior design that integrates the fashionable home style, has become the first choice of fashionable people. The Changhong in the main technology, but also the use of advanced Samsung SDIW1PDP screen, not only has excellent screen effect, but also as a national brand, affordable price is also witnessed ****. Once launched on its cost-effective by the majority of consumers warmly sought after.
(2) color picture quality to be full
PDP TV's main technical indicators are: resolution, brightness, contrast and viewing angle, these factors **** with the decision of the picture quality.
In the purchase of PDP TV must pay attention to the resolution. Currently on the market in accordance with the different PDP resolution, divided into standard resolution (SD) and high resolution (HD) two. Standard resolution can meet the requirements of the current television signal, but for the rapid development of high-definition digital television signals now, with high-resolution PDP screen is more applicable.
Color is also a technical indicator that should be focused on when purchasing. At the same time to achieve high contrast ratio and high brightness, means that the picture is more full of color, picture quality is more bright and clear. At present, Japan and South Korea, several large manufacturers of their own engine technology to achieve high picture quality. In the domestic brand, cited Samsung SDIW1PDP screen Changhong brand can also achieve high definition picture quality.
Here, it is especially worth mentioning that Changhong PDP screen at the same time with the four major advantages: greatly enhanced contrast, low reflection technology and complementary color technology to improve contrast; reduce halo effect, the image outline is clearer; the use of patented software algorithms, accurately reproduces the movement of the image; 550 billion color display capacity, more realistic colors, more detailed picture.
(3) Response time is the main reference index
Response time is also the main reference index for consumers to buy flat-panel TVs. In this regard, PDP TV has a significant advantage. Currently the mainstream response time of LCD TVs is 4 milliseconds, while the PDP TV using self-illuminated technology, the response time is much smaller. Changhong launched the PDP TV set, in motion picture quality made a major breakthrough, advanced mania reduction technology makes the picture quality reproduction can accurately locate the interference area and reduce the motion picture overlap (false contour), the response time is close to the speed of light, and the CTR is comparable to the phenomenon of no tail dragging.
(4) Excellent sound quality to shock
Excellent picture quality should be equipped with pure sound quality, in order to make the picture have a sense of colorful. When shopping, don't forget to pay attention to whether the PDP TV has a complete sound system. Changhong's seven-band equalizer, Samsung's dual-channel speakers, and Panasonic's ultra-thin subwoofer are all capable of providing exceptional sound quality and creating the perfect home theater effect.
(5) Personalized design to be stylish
PDP TV's personalization needs are particularly favored, for example, Changhong's PDP screen circuitry is particularly miniaturized, which not only makes the TV appearance of smooth lines and simple structure, but most of all allows the product to achieve energy saving, which is almost the industry's long-standing dream: ultra-low energy consumption. The biggest benefit of Changhong's PDP color TVs is that they save more energy and expense than similar products.
(6) Multi-functional interfaces are a must
When purchasing a PDP, considerations have to be made for future HDTV support, so a PDP TV with a high-definition multimedia interface (HDMI) is the right choice. Changhong PDP color TVs have HDMI ports that allow you to easily enjoy pure video and audio signals from a variety of digital devices, and the digital high-definition picture quality and perfect sound quality of a variety of HD devices are all presented in front of you.
(7) cost-effective to be called
PDP TV has a lot of advantages, and with the sharp decline in prices, many consumers have been or are ready to move it home. The current price of 42-inch PDP TV has dropped to a minimum of less than ten thousand yuan. We know that foreign brands PDP TV prices are significantly higher than domestic brands, which is the main concern of many consumers to buy foreign brands. In fact, the current domestic big brands in the main technology of PDP, are used in Japan and South Korea advanced technology, such as Changhong's SDIW1PDP screen. The same quality, affordable price makes the overall cost-effectiveness of domestic PDP TV more outstanding. In the purchase of PDP TV, must grasp the scale of consumption: focus on technology, but also cleverly pick the price. As long as the mastery of this standard, is for the average family, move a home theater home is not difficult.
(8) service life to pay attention to
Any product has a service life, this PDP TV is no exception, there is a single point is most likely to be ignored by the consumer. Changhong's small circuit version of the shape of the SDIW1PDP screen greatly reduces the power consumption of the product, and naturally extends the service life of the PDP TV, up to 60,000 hours. If you watch 8 hours a day, you can use it for 20 years.