What is the difference between the plasma from the LCD?
For those who are going to buy a new TV, the question is what the difference between the plasma from the LCD is, is probably the most exciting.
As practice shows, any technology is inherent in both strengths and weaknesses, including plasma (PDP) and liquid crystal (LCD). It is important to choose the type of TV, the disadvantages of which will seem to you insignificant in comparison with its advantages. To make the right choice between plasma and LCD TV should at least approximately represent the basic principles of their work.
The plasma screen is a matrix consisting of a large number of small colodes filled with inert gas. Under the action of the applied voltage, this gas goes into the plasma state and makes the Special phosphor, which covered the bottom of each columble.
Of the three multi-colored (RGB) smb. subpixels of the matrix build each pixel image on the plasma TV screen capable of transmitting various colors of the color palette.
The LCD matrix is an array of liquid crystal cells that acquire transparency depending on the magnitude of the voltage applied to them. According to the principle of work of the LCD matrix, something similar to ordinary window blinds, passing as much light how much it allows it to make the angle of their openness. Only blinds do it all at the same time, and the LCD cells. each separately.
Right behind the LCD array of LCD cells or on their sides, light sources are located, most often LEDs (LED), and in front of it are the light filters of three RGB colors, which are given to the missed light.
As you noticed, the difference between the plasma from the LCD is essential, and their strong and weaknesses flow from the characteristics of each technology. Consider the most important of them.
Color reproduction in PDP panels is better and more realistic, since phosphor provides wider coverage of the palette. Also plasma panels have an increased image contrast level and give a real black color.
Insufficient brightness. minus of this technology. Sunlight from the window can spoil the impression of viewing, some mirror of the panel manifests. It is necessary to keep in mind.
LCD TVs demonstrate a large brightness and saturation of the picture, but the backlight of their matrix does not provide uniformity of the screen glow.
If you are a lover of sports programs and films with special effects, it is better to stop your plasma choice, since the LCD cells have a certain inertia, sometimes leading to lubricating the contours of rapidly moving on the object screen.
Limit angles of its review are important for group viewing of the TV. Plasma technology provides broad viewing angles in models of any level, and to get such capabilities in the LCD TVs will have to buy a high-class device.
LCD technology allows the screens of almost any size for any operating conditions. But the plasma TV with a diagonal of less than 42 “You just just do not find on sale, and it imposes restrictions on their use in small rooms.
Here the LCD TVs have an undoubted advantage, since it takes very little energy to power the LCD cells. Although plasma models do not consume not much power, but still about 2 times more than their LCD colleagues. In addition, the PDP panels are harder and often require special cooling systems whose noise you can hear.
Constructive features and fastening
LCD matrices are small weight and thickness, which means that you can easily hang TVs with huge diagonals even on the inner walls of the premises. PDP panels are thicker and harder, so require more reliable and powerful ways to mount on the walls.
It is believed that at the cost of one square inches PDP panels to buy more profitable. However, this advantage is clearly manifested only in comparison with large-diagonal LCD-TVs relating to the premium class.
Summing all the indicators, we can say that the plasma TV is an ideal choice for a passionate film, which is placed in the chapter of naturalness and high quality image. LCD TVs will be more suitable for practical people who value efficiency and durability in good quality image.
By the way, the question is how the plasma is different from the LCD, it will be soon to lose its relevance at all, since under the onslaught of rapidly cheaper LCD panels, the production of PDP TVs becomes unprofitable. Some manufacturers have already announced the collapse of the development in this area. OLED TVs are already going to shift, follow the development of this technology.
LCD TV reproduces an image using a technology based on the polarization of the light flux.
Advantages. Compared to LCD plasma panels, TVs consume 2-3 times less electricity and have small pixels (less than 0.5 mm), which ensures excellent clarity of the picture. When playing, the static image does not flicker, thereby minimizes the load on the eyes. LCD monitor is characterized by an ideally flat surface, a small thickness of the housing (up to 10 mm) and a wide viewing angle (up to 170 °). Due to the absence of harmful radiation LCD, TVs do not have a negative impact on people’s health.
disadvantages. Despite the growth in the production of LCD televisions, the for them remain as long as high. Due to the decrease in the resource of the highlighting lamp, a gradual loss of screen brightness occurs. There is a chance of “burnout” of pixels. Tint and brightness pictures depend on the viewing angle.
Screen resolution directly affects image quality. The screen of any modern TV is a matrix consisting of a variety of pixels, or visible points. Pixel density. the value that is called the resolution of the TV matrix. The clarity of the screen image depends on both the sizes of the pixels themselves and the distance between them. If you compare two screens with the same diagonal, then a higher resolution will have the one whose pixel size is less. For example, a 43-inch TV with a resolution of 3840 × 2160 will show a much clearer image than a TV with the same diagonal, but with a resolution of 1920 × 1080. Resolution in megapixels is calculated by multiplying the number of vertical strings of the image by the number of horizontal, T. E. 8.29 MPIXs fit in the first screen, in the second. four times less, only 2.07 MPIX. The higher the resolution, the greater the amount of video information is displayed on the screen.
Currently, there are several basic screen resolution formats of the TV:
- SDTV (Standard-Definition Television). Image of standard definition, base level with analog television resolution 720 × 480 (NTSC. National Committee on Television Standards) or 720 × 576 (PAL. Phase Alternating Line. line phase change, SECAM. Sequentiel Couler A Memorie. consistent color with memory) and aspect ratio 4: 3.In previous years, an analog broadcasting in SD format was carried out in Russia, since 2009 the transition to digital broadcast was launched, which was fully ended by 2018.
- HD Ready (High-Definition Ready). Marketing Name for Electronic Devices, “Ready” (Ready) Accept and display analog signal with HDMI. The certificate applies to a high resolution of 1280 × 720p or 1920 × 1080i / p, but allows for the initial image distortion. Aspect ratio 16: 9. The number of pixels is twice as bigger than in SD, which allows you to get a better picture. In a TV marked with HD Ready, you can view videos both standard and high definition, while the resolution of the signal is interpolated to the physical resolution of the matrix.
- Full HD. Or HDTV1080P. Marketing Name, first introduced by Sony in 2007 to designate a new HD Ready 1080 standard. With the difference that high-resolution TVs of this type support the output to the video screen with a resolution of 1920 x 1080, but only with progressive scan and without distortion. Compared with standard clarity in Full HD, the number of pixels increases five times.
- Ultra HD (4K), or UHDTV-1. This is the next stage in image transmission technology. The standard provides for the ratio of the parties 16: 9 with the following minimum requirements: Resolution. 3840 × 2160P; update frequency. 100 Hz; color depth. 10 bits; Audio format. above 5.one; Dynamic range. high (HDR); Video codec. HEVC MAIN 10.
4K TVs can be viewed even from close range, for example, the image on a TV with a screen of 65 inches is perfectly perceived by the human eye from the distance from 2 m.
- Ultra HD (8K). UHDTV-2, or Super Hi-Vision. Recently embedded format. Unlike UHDTV-1, with a resolution of 7682 × 4320p, it provides: color depth. up to 14 bits; Audio format. 22.2 channels; Video codec. not yet determined. The resolution is four times higher than the standard UHDTV-1 (33.18 MP instead of 8.29 MP) and 16 times. HDTV 1080p (Full HD). At one time, the Japanese division of Science Technology Research Laboratories (NHK. Nippon Hoso Kyokai) suggested that by 2030 Ultra HD (8K) will be the global television standard  http: // techno.bigmir.NET /.
Currently, manufacturers make a bet on the model with a resolution of Ultra HD (4K). this format has most of the TVs for the mass buyer. Also in the range of companies have low-cost models with full HD and novelties with a resolution of 8k.
High-quality TV without unnecessary functions
Philips 43PFS5505 LED TV is equipped with the most demanded features and is relatively low cost.
It is important for the TV, how often the screen is replaced in a second. This update speed is measured in Hertz. Most often, televisions have a parameter in 60 Hz. This suggests that in a second the image will be updated 60 times. Obviously, an increase in the sweep frequency will make it possible to make dynamic scenes as smooth as possible, and not dedicary. Especially critical this is for games or sports programs.
Common 60-hertz screens are suitable for viewing almost entire content: movies, TV shows, TV shows. The screen with a frequency of 120 Hertz will show advantages in video games, but such pleasure will be hidden.
Choose and buy a high frequency TV sweep Delivery in Russia
Plasma Panel / Plasma TV Resource.
This value is the indicator of not the time of plasma failure, and the estimated loss loss of the initial brightness of the image. But, despite the apparent value of this indicator, it is not necessary to especially stop on it, since it also matters the resource of the filling (electronic and technical), which the plasma panel has in large numbers. And each of the elements of this filling has its own “shelf life”. We will advise here only one thing. it is worth trusting products of proven firms.
Plasma TV technology is based on fluorescent lamp. The display consists of cells. Inside each cell, two glass panels separated by a narrow gap, which includes an insulating layer, address electrode and a display electrode, into which neon-xenon gas is injected and sealed in a plasma form in the production process.
Another sign that allows you to answer the question, what is the difference between the TV LCD from plasma, is that when the plasma TV is used, the gas is charged with electricity after certain intervals. Charged gas then falls:
Each group of phosphors is called pixel (element of the image. separate red, green and blue phosphors are called subpixels). Since the points of the plasma TV create their own light, they are called “emitting” displays.
Plasma TVs can be done thin. However, despite the fact that in old televisions with an electron-ray tube, a bulky kinescope and scanning with an electronic beam is not required, burning phosphors for creating an image are still used in plasma TVs. As a result, plasma TVs suffer from some disadvantages of TVs with ELT, such as heat release and possible burnout of static image screen.
What are the results?
Image quality. In the first place. LED and plasma. LCD TVs are significantly inferior, since the level of clarity and contrast is not enough.
Economy. And here in the leaders again models with LED technology. In second place. LCD TVs. The most “voracious” participant is considered a plasma device.
Price. The purchase of LCD TVs is cheaper. In second place. plasma. On the third place. Inaccessible for many LED-TVs.
Durability. For this performance, no one will compare with the LCD. In second place plasma and LED TVs.
IMPORTANT! So if someone needs a device that can be in operation almost decades and the quality of the image is not very important, then we recommend buying a LCD TV. Estethem and kinomans who have low incomes, you can advise a plasma model.
To the one who loves watching movies and there is money on expensive purchases, you can recommend LED-TV. And not simple, but the one that has the effect of 3D image.
Building, Advantages and Disadvantages of Plasma, LCD and LED TVs
Plasma, LCD (CCFL LCD) and LED (LED LCD) TVs have their advantages and cons associated with production technology. Consider briefly the structure of each TV, their advantages and disadvantages.
Plasma panel consists of two glass plates. Between them there are many hermetic cells filled with neon or xenon (similar to daylight lamps).
Electrode fits each cell. Under the action of electric current, gas goes into plasma state and begins to emit ultraviolet rays. Rays fall on a layer of phosphor, which is applied to the wall of the cell. Depending on the composition of the luminofor, the cell is glowed in red, blue or green light. The combination of these colors gives the desired color. The higher the voltage, the brighter the cell is lit.
Due to the fact that the design of the panel allows you to fully repay the appropriate cells, it is possible to achieve a really deep black color, which means high contrast. Yes, and the purity of the basic colors at the level due to the phenomenon of luminescence.
According to the indicators of the viewing angle and the response time of the plasma wins the LCD televisions. But the glow of numerous “light bulbs” of the plasma panel is sufficiently energy-price. This is one of the minuses of such TVs.
In addition, cells have a certain minimum size and therefore it is impossible to create a plasma with a small diagonal.
There is still a problem of deterioration in the quality of the picture with time. This is due to the combustion of phosphorus in pixel (the burnout of the phosphor). Especially in those places where the picture does not change for a long time (for example, the channel logo, it can eventually be imprinted on the screen). But manufacturers argue that in modern models, this problem is almost solved. And the service life of plasma TVs increased from 30,000 to 60,000 hours. Even the figure is 100,000 hours. In any case, the service life of such a TV is at least 10 years.
TV LCD panel also represents two glass plates. Between them is a layer of liquid crystals. Behind the panel. lighting lamp. The point-element of the LCD screen is called a pixel and consists of three subpixels, which have the same structure. a layer of liquid crystals located between two plates to which the electric current is supplied. And they differ only in the color filter: red, blue and green.
Under the influence of electric field, liquid crystals inside the “subpixels” change their position in space, skipping or blocking light from the lamp. Each pixel manages a thin film transistor (TFT. THIN FILM TRANSISTOR). Therefore, the picture changes immediately unlike the kinescopic televisions, where the image is drawn up. As a result, there is no flicker, the eyes are less tired.
Since the lighting lamp is on constantly, and the layer of liquid crystals is not able to completely overlap its light, then the black color in the LCD TVs is not completely black, rather dark gray, t. E. Contrast decreases. And in this LCD TVs lose plasma.
But here there is no such phenomenon as the burnout of the phosphor, and the image quality will not depend on time. The service life of the LCD TV is limited to the life of the backlight lamp. And this is 50000-60000 hours.
You may have already heard the term associated with LCD TVs. broken pixels. Most likelihood to face them on cheaper models that can install cheaper less high-quality matrices. But most manufacturers still follow their reputation and does not allow it. According to the standards, there is a certain number of broken pixels (quantity depends on the manufacturer) and in case of exceeding them to warranty period, the TV is replaced.
Some distortion at large viewing corners and more response from the LCD TVs compared with the plasma is present. But I advise you to see in practice in the store and compare visual images of various TVs. Often the difference in the numbers of the eye simply can’t catch, and is it worth it to decide on them so.
Differences LED (LED LCD) TVs from LCD (CCFL LCD) only in the backlight method. Instead of fluorescent lamps, LEDs are used. Either side or matrix backlight. Due to this, color reproduction is improved compared to conventional LCD TVs.
A big advantage is the great importance of dynamic contrast. It exceeds not only the indicators of the LCD televisions, but often plasma. In addition, with such illumination, energy consumption decreases (up to 40%). LED TVs are more environmentally friendly, as the LCD lamps contain mercury, which should be disposed of. LED service life more than these lamps. These TVs are thinner and lungs. Disadvantage of LED TVs compared to the LCD is their price. Another disadvantage compared to plasma TVs can be called uneven illumination associated with a feature of the LCD technology itself.
And finally, when choosing a TV should not be focused only on the method of production. Much depends on the manufacturer, a specific model, from the quality of video processor and additional technologies, which are used to improve the indicators of TVs of this or that method of production. Trust your eyes and do not get blindly on advertising tricks.
What to choose?
Part of the manufacturers refused to produce plasma due to their high cost. These include LG, Panasonic. The quality of the LCD picture on clarity approached the quality that is observed in PDP.
Undoubtedly, cinema connoisseurs will remain true to plasma, organizing small cinemas with good audio systems at home. There will be no wide range of assortment, but it turns out to find a standing option.
The plasma with a wide diagonal is able to withstand not every wall, but if you are crazy about Hollywood action with incredible special effects, you can put it on a special end.
What is better. plasma or liquid crystal TV. it defines each independently, given the own requirements and wishes. It is necessary to pay attention to the strong and weaknesses in the context of your requirements.
What to choose a plasma or lcd TV
Plasma production technology, LCD (CCFL LCD) and LED (LED LCD) TVs are well worked out, so they all give a high quality picture. And nevertheless, what is better than plasma or LCD? There are advantages and disadvantages and plasma panels and the LCD and LED brothers.
Why brothers? Because they are produced on the same technology and differ only in the method of negative.
Plasma panels give a fairly high-quality picture: real black color and generally realistic color rendering, high contrast, wide viewing angles and small response time.
Disadvantages: Brightness is not large enough and in the sun room Watch TV will not be so comfortable, high power consumption, large dimensions.
“Screen burnout”. This is the combustion process of phosphorus in the cell. As a result, the screen may be remembered on the screen, for example, the logo. This problem has plasma, but even in the first models, the service life was 30,000 hours (about 10 years). And today manufacturers declare the service life of the panels comparable with LCD TVs.
Another minus. It is impossible to create a plasma with a diagonal size less than 32 inches. But the price of plasma is large diagonally lower than that diagonally LCD or LED.
LCD (CCFL LCD) TVs brightness is better than plasma, power consumption below. Response time and viewing angles lose plasma, but they are sufficient for comfortable viewing. Color reproduction and contrast at the level, and different manufacturers are different. Although it should be noted that the black color is not truly black, rather dark gray. This is due to the features of technology.
LED (LED LCD) TVs, also Being LCD TVs, thinner CCFL LCD due to the fact that LEDs are used to illuminate the liquid crystal panel instead of fluorescent lamps. It improves color reproduction. Minus you can call the price. In this indicator, they lose and LCD (CCFL LCD) TVs and plasma. In addition, these televisions are present. This features LCD technology. But today this is the most modern technology of mass production of televisions.
Knowing about the pros and cons of all technologies you can decide what is better for you better plasma or lcd tv.
P.S. The first LCD televisions with backlit from fluorescent lamps (CCFL LCD) have already saved from the TV market. Plasma ceased to produce in 2014. LED LCD while takes the main TV market. But a new technology is already on shift. Oled. The stated for OLED TVs are very high. But they are already on sale. About models that enter the market in a special branch on our forum.