Plasma TV Market Overview: Matrix Construction and Image Preparation, Comparison with LCD, TV Recommendation
PDP-5070HD (Pioneer). Resolution HD Ready (1365768 pixels), screen diagonal- 50 inches
KRP-600A (Pioneer) - Plasma Panel of the Kuro series. Screen diagonal - 60 inches, permission Full HD (19201080p), mass - 49 kg
Massive PDP-TVs with large diagonals (from 50 inches) are most often installed on special stands capable of withstanding a mass of at least 40kg
Wall-mounted installation is often found at the "plasma" of small sizes.
XEL-1 (Sony) is the first serial OLED TV. Price, 1995 rubles.
CHIEF wall brackets for "plasma" regulate its tilt and vertical position and horizontal
Stands for the PDP panel and LCD-TV are usually sold complete with TVs and used simultaneously to install AV components.
With the wall location "plasma" it is important to take into account the factor of the external "illumination" - the image with low brightness is impossible to look at the light of the sun
Escada.
Bell'o.
Universal floor racks for PDP TVs and AV components: ESCADA (1), Bell'o (2). Material - MDF, array. Shelves, tempered glass
To connect TV to the player, it is advisable to use either the inter-block analog component video cable (Wireworld) (1) or digital (HDMI cable) (2)
Do not concent!
Most PDP panels are recommended to be transported and stored only in a vertical position, as evidenced by reminders in the instructions and pictograms on the factory package. For the transport of the device, two people will be required. Attempting to transport the plasma panel lying can lead to the fact that the matrix will be out of order or its individual sections (uneven brightness of the image on the screen). However, it is permissible to put it on the floor for a short time.
Picture at the addressAll varieties of plasma panels are related to a single design in the form of a matrix with a plurality of tiny gas-filled cells located between two parallel glasses. For the formation of the PDP image, it uses such a phenomenon as photoluminescence - visible luminosity of phosphor, which are covered with the inner surfaces of the panel cells, under the action of UV radiation. Each elementary portion of the image on the screen (pixel) serves three cells of the matrix with phosphors for radiation of red, blue and green colors. The phosphors make "work" the ultraviolet glow of gas that fills the cell is, the electrical discharge excites it at the right moment. For this, the grid of the electrodes is laid over and under cells, which are received by the control commands from the processor processor.
The brightness of the cell is proportional to the time of its luminescence. The color of the pixel, in turn, depends on the percentage "contribution" of each of its three luminophores. The electron bundle scans the surface of the screen, moving horizontally (interlaced or line), "knocks out" light from pixels sequentially, and in the plasma panel, the formation of the image is based on the so-called addressing principle. UPDP does not have an interlaced scan in a literal understanding of the word. Instead, the control unit of the panel adjusts the brightness of all pixels at the same time, recording when analyzing the video signal the current brightness values of each pixel in memory and then update the entire image ("fields"), and not consistently as in the kinescope. Vitoga Picture on the plasma panel is very stable, similar to the image of a film processor, where a similar principle is used (only instead of the "fields" at the projector of Film Frames).
PDP panel matrix design device diagram
2-facial panel;
3-dielectric substrate;
4- Display electrodes;
5- protective film;
6- walls of cells;
7- rear panel;
8- data electrodes;
9- RGB phosphors
Plasma against LCD?Ergonomics - unconditional plus of any flat TV, whether it is an LCD device or "plasma". For a flat design with a thickness of 5-6cm, it is much easier to find a place in the interior than for traditional TV with a kinescope. However, it should be noted that the plasma panel weighs much more of the same size diagonal of the LCD TV and loses to it for energy consumption several times. The typical power of the LCD model with a 42-inch screen diagonal, consumed during operation - 70-150W, while a similar plasma technique "eats" about 300W and even more. Therefore, designers are forced to turn the entire rear panel of a typical PDP to one large cooling radiator, this increases the weight of the panel. True, not everything is so hopeless with the solution of this issue. First, in standby mode (STANDBY), the power consumption is already negligible (several watts). Secondly, the "diet for weight loss" PDP panels found: Fujitsu General from 2010 Plans the serial release of plasma TVs with a thickness of only 2.5 cm.
Plasma competitor
The OLED design of the matrix type based on thin-film semiconductor structures capable of radiating the light under the influence of the applied low-voltage electrical voltage. The image form cumulative emissions of elementary cells, and color it becomes due to the passage of light through the layers of filters of green, red and blue colors. Advantages of OLED displays are low power consumption, a very wide viewing angle, high brightness and contrast (up to 105kd / m2 and 106: 1, respectively), the ability to create flexible displays, as well as relative cheapness.
Another unpleasant feature of the plasma panel-obspecific image contrast due to the fact that a pre-discharge is required for cell management. The burnout of the screen due to the retention of the image) was a very relevant problem for the first generations of plasma panels: in those places of display, where fixed parts of the picture were mainly located (for example, television logos), the characteristic "blur" appeared over time - the result of uneven luminescent coating Due to excessive load. Later, manufacturers have learned to fight this phenomenon, in particular by analyzing the image and its dynamic correction. But still do not leave the DVD player in pause mode longer than 30 minutes. The decrease in the brightness of the image due to the gradual combustion of phosphorus in the phosphor is really the case, but this process is designed for 30 thousand. The service life of the device (view for 10 years per day). Want to extend the time to reduce the level of contrast, for example up to 50%. Well: the frightening word "plasma" absolutely does not mean the presence of radiation, this is a philistine myth.
Pluses at the "plasma" a lot. Among the image stability that is not tired with the duty of the seat at the screen, the lack of problems associated with the viewing angle (like LCD TVs), excellent color reproduction, browing the "plasma" picture to the most natural. The huge display until recently was a powerful trump card of the PDP TV, but the liquid crystal competitor begins to close it in the niche of instruments with large diagonals. It did not fail the most favorable way to affect the price of "plasma" ...
Full HD?Screen size, physical resolution, brightness, contrast- the main parameters of the panels, to varying degrees affecting the image quality. Of course, the screen resolution is one of the most important characteristics. Most of the relatively inexpensive "plasma" diagonals from 42 dysum have a resolution of 1024768pixels.
Is installation?
Purchase a plasma panel is not the end of the story. If the interior solution of the home theater involves mounted tv mounting, a special wall or ceiling bracket will be required. Brackets for PDP are relatively expensive, because any plasma panel weighs significantly more LCD TV similar size. Popular rotary brackets are popular, allowing the panel to turn the panel relative to the wall plane in the range of 0-90. Almost all plasma panels are permissible not only to be attached to the wall, but also to install on the stand (as a rule, it is sold complete with a TV). Mount the "plasma" with a diagonal from 42nds to the stand should be at least two. Strictly speaking, to resort to the services of a professional technique for this is not at all necessary.
For a home theater, it is better to choose a plasma panel with a screen resolution at least 1024720 pixels with progressive scan. After all, 720p image strings already provide compatibility with high definition format (HDTV), in which active television broadcast will soon begin; In this way, you can create a bore on the nearest HD future. Models of category FullHD with a resolution of 19201080 pixels today are at the peak of development, they are issued in the calculation of the prospective HD video sources of Blu-ray or HDDVD. Now, time to view the usual DVD collection, such a high resolution of the display, in fact, is redundant.
The contrast of PDP screens depends on the measurement conditions that separate manufacturers can vary significantly. Many are used to increase the contrastness of anti-reflective coatings of the front panel of the display, but this often leads to a decrease in brightness of the picture (up to 40%). The value of the contrast is good for today's standards starts from 3000: 1, but it should be remembered that the subjective feeling of clarity pictures, depending on the contrast, is also determined by the viewing conditions: in a brightly lit room, the image will seem less contrasting, rather than indoors with muted light. However, for example, video projectors the contrast rate is much worse than that of plasma panels, and PDP TVs have been widely used in brightly lit interiors, while video projectors, on the contrary, are used in darkened cinema halls. The brightness of the PDP panel is a more useful characteristic compared to the contrast, a good value is considered brightness 1200KD / m2.
Dictionary Terminos
HDTV. - "High-definition television", in which a video signal of a 16: 9 format is used. There are three types of High Definition signals, or HD signals. The books include HDTV-A, or "720P" (1280720 pixels with progressive scan), HDTV-B, or "1080i" (19201080 pixels with interlaced (720Is), and standard SDTV clarity format (720480 pixels with progressive scan).
FullHD - Recovery image with a resolution of 19201080 pixels with interlaced scan.
HDReady. -Force, "Understanding" 720p Signal.
"Anamorph" -The DVD disk with such a mark recorded a corrected image designed to play on widescreen TVs. An "Anamorphic" picture is devoid of geometric distortion and dark fields along the edges of the screen.
Phosphor - Activity (more precisely, class of substances, most often chemical nature), capable of transforming energy absorbing energy into light radiation.
Definition Capacity of the TV to reproduce small and medium parts of the image with maximum contrast.
When choosing a specific model "Plasma", consider exactly what you are going to watch. If you plan a regular view of the TV shows, you need to buy a model with a built-in TV tuner (many plasma panels are deprived), but if you are going to use the PDP panel only in the home theater with DVD (Blu-ray / HD DVD) -Pleter as a source, tuner You do not need.
Consider the worst picture gives a composite switching method. The highest image quality is achieved with the HDMI digital interface (or DVI-HDMI). Connection via analog component video input will also make it possible to achieve high quality, but the corresponding video outputs are not all DVD players.