Briefly about the article: TV on the basis of kinescopes and rare crystals, plasma and projection - today we can look at all the sights of "home lovers", even if the TV is not in the rest of the black, it will be acceptable to marvel at your favorite films.

History of chotirioh "boxes"

Different types of modern TVs

Not long ago, the problem of choosing a TV set for a large number of vacancies did not arise. Radyansk promyslovist released two or three models for two with more than a million people, and all were more happy. Today, hundreds of different television sets ripple in the eyes. Such "boxes" are divided not only for the price and size of the diagonal, but also for the principle of shaping the picture. Dark fox? So let's know in a new clear direction.

One garmat - one screen

Tubes based on kinescopes (ELT - electron tubes) appeared a long time ago, and today the stench is the most widespread. The principle of operation of such "boxes" is even simpler. Zvorotny Bik the screen is covered with a phosphor (when bombarding speech, charged particles start to glow). On it, in a row, pass an electronic promin, “flickering” different-colored phosphor dots.

The problem is that one even short interval of an hour on the screen shines only a sprat of rows. The whole picture is better for me through the peculiarities of our dawn. All the same, "reason" is such a deceit, and we have to keep the images in memory. Tobto, wind up in front of such a TV set, we get a little tense.

For a long time, the screens of the ELT-televisions were swollen. Rіvninu zamіst "pagorba" іnzhenery vdalos otrimati roki ten to that. Today, non-flat screens are equipped with only the smallest and the cheapest televisions. Before speech, the price is one of the most important advantages of kinescope models. Such television sets have at once moved to inexpensive solutions for people with a limited budget. It is worth trying to find models of famous brands, among them Sony , Philips і Panasonic .

Another advantage is that the EPT technology has been perfected to the brim. Vdoskonalyuvati її - all the same, scho re-find the wheel or redaguvati the classic novel. Otzhe, mayzhe all kіneskopnі tvіzori however good. The clarity of the EPT-picture is over the top. The kinescope is a kind of people endowed with a swedish reaction, a garnet contrast and a natural color. To add to the list of pluses at a reasonable price and a trivial term of service, a whole good candidate for a purchase will come out.

And kineskopnyh TVs have some shortfalls. Do you remember that the lie reveals a deception about the whole image on the screen? So the axis, how to get close to the TV set and respectfully admire, look at the merehtinnya pictures. All the same, the change of personnel is not the lining of the coat, so that it will be left unmarked. In part, the problem is eliminated by the purchase of a nuclear television with a staffing of 100 Hz (fortunately, there are more such infections). The picture on the new one is updated 100 times per second, which is markedly reduced in this way.

In addition, the “kinescope” image has such problems, like the filthy shifting (can be manifested in a small “radius” of objects), imperfect focusing (the picture loses clarity), as well as commemorative geometric creation (a straight line in looking bent).

We sounded so much to the great expansion of televisions that we are designing the placement of furniture near the room with the “healthy black box” upgrade. Aje tse is not good. So, so, the TV set can be smaller, lighter, and even higher, you can hang it on the wall. Ale, obviously, only not ELT. Tsim is destined to live out their lifetime "on the pidloz".

Visnovok on ELT-TVs is on the offensive: as if you are surrounded by budget koshta (like our squad), you can see on the good old kinescope "screen". Rare rіchchyu vіn camp not earlier, nizh for sim-vysim rokіv.

Picture from gas

A short lesson in physics: plasma is the fourth stage of speech (more rarely, hard and gas-like, even if you don’t know it). Tse povnistyu or often ionizovaniya gas, degustiny positive and negative charges approximately zbіgayutsya.

What do we need to know? For the best understanding of the principles of robotic plasma televisions. Even now, more and more often, you can see it on the shelves of stores and in the lives of middle-class families. Plasma screen and two glass panels, among which there are faceless critical cores filled with an inert gas - neon or xenon. The skin dot on the display is made up of three okremikh seredkіv, covered with chervonim, green or blue phosphor.

Pіd deіyu electric struma the gas of the middle pixels is transformed into plasma and begins to change the ultraviolet change. UV-vibration smushing the luminophor glows. The more the middle shines, the more brightness. In case of any bright spots, the dots may not fade, and the dark ones simply do not fade. Merekhtinnya image is, but it is not memorable for our eyes.

The advantages of "plasma" are obvious: a perfectly flat screen of small size, a majestic diagonal (it can reach two or three meters), bright and rich colors, a lot of problems with focusing and changing links, a long term of service, a good look around y (when looking sideways, the colors appear insignificantly).

Tim, by the way, the technology of making "plasma" is itself quite foldable. Therefore, few people are engaged in the preparation of such screens. Among the varieties of plasma televisions are: Fujitsu і Hitachi , NEC , Pioneer , LG і Samsung . Mustache. Not good, right?

Well, now a few words about you yourself, you can’t do without them - not enough. The first one is a high price. A lot of plasma TV sets are not cheaper than a car. The other is the temple of "nezherlivist". On a 42-inch panel, less than 350 watts are ventilated. Kіneskopnі tvіzorі pomіtno ekonomіchnіshі.

For those who love in the middle of watching a movie, put the player on pause and go over again on their right, "plasma" is not the best choice. Due to the peculiarities of the phosphor coating, with a trivial image of a static image, the intensity of the luminescence of a few pixels is significantly reduced. So over time the brightness of the screen may change. In addition, it is difficult to hang a plasma TV on the wall through a significant weight (30-70 kg). But you can. How else do you need such a thin consumption?

Varto of separation of plasma panels and plasma televisions. And then, having paid a kіlka of a thousand smart loners, you can take away the “TV”, to which you can wind TV cable don't switch. So, the same way: for receiving TV programs on a plasma panel, you need a TV tuner. Yakshcho yogo nemaє - to happen to kupuvati okremo.

For the rest of the hour, it’s too much to talk about high-definition television. HDTV - High Definition TV). Tsya naivishcha clarity is reachable beyond the rahunok of the great number of points that form the image. So, from the modern plasma TVs of the world, there can be enough space for the building (that is, a small point that forms a picture) for displaying a new type of signal without a hitch. The stench is good for today's TV broadcasting standards.

Rіdke image

Technology of screens on rare crystals ( LCD - Liquid Crystal Display) has been used for ten years already. The most natural RK-boom was born like the 90s of the last century and continues to do so. Today, more than half of computers are bathed in RK monitors. They will remain 15 years equipped with laptops. To the right, behind the malim, you can see the ELT-TVs from the vitals.

Why are RK TV good? Let's go back to theory. A ball of rare crystals of rotting between two transparent panels, crushed from smelting or more than pure sodium chloride. Under the influence of the electromagnetic field, the crystals change the entire polarization of the light that passes through them. At the result, one middle can change its value from the most transparent (white color) to opaque (black color). All intermediate meanings are gray shades. To take away the color of the image, it is sufficient to put filters of color on the commissaries. Thin-film transistors ( TFT - Thin Film Transistor), which we will specialize in the way of writing on the screen. The number of thin-film transistors can be counted in millions. The process of folding an LCD-screen to fold, it is not surprising that at the dawn of its own RK-display cost more expensive than the most advanced computers.

With RK-televisions, the situation is rather complicated. The stench began to appear over the market recently. Previously, the biggest problem was the impossibility of creating great LCD-screens - the most important thing was reaching a diagonal of 30 inches. However, modern technologies allow screens up to 60 inches in size. From the other side, from which there is not enough time to cry out, and one important thing. Not only large RK TVs are released, but also small ones, with a diagonal of 15-17 inches. Plasma imitations cannot pass such a trick. And you can’t consume half the wall in the kitchen with a TV screen. A thin and elegant RK TV will be richer.

The electronics of the RK-televisions are constantly brought to fight with the clarity of the image brought to an acceptable level. Razdіlna zdatnіst rіdkokristalіchnyh matrices suvoro fixed, so the number of seredkіv can't be changed or increased. And the axis of the video signal often does not fit with the separate building of the TV. And here the image must be scaled up, which will inevitably lead to the appearance of creation.

And vzagali, rіdkokristalіchnі tvіzors step by step become "mature", and not only beyond the world. During the day, the picture makes me more and more happy, approaching the ideal. The mass of such televisions is not large: 24-inch models sound no more than 13 kg. Energospozhivannya is not enough. Price mayzhe zavzhdi adequate.

І one at the field of warriors

There is only one type of television - projection. Sounds of stench are similar to kinescopes, but the diagonal of their screen sounds richer. In the middle of the body of such a "box" there is a dark lamp, as if projecting an image on a white screen. Between the screen and the lamp, a large number of components are installed, which form that beautiful image.

Projection televisions are of two types. Some of them are primed on electron tubes, others - on rare crystals. At the first view in the middle of the body, there are three small kinescopes (for red, green and blue colors), which, instead of the skin one, pass through a system of prisms, lenses and mirrors. The image is not projected onto the screen. Such televisions, like EPT-models, do not have much power on the screen refresh rate: it can become 50 Hz or 100 Hz.

In the middle of the projection televisions based on rare crystals, either one tricolor RK-matrix, or three (one for red, green and blue colors) is installed. The formed image is illuminated by a lamp, then we pass through the folding lens system and drag it onto the screen. This type is shorter than the CLT version. The projections of RK-TVs are less important, do not have problems with geometry and can boast of a high diversity of buildings (tse means high clarity).

Often the lamp, which ensures the illumination, gets very hot, so the projection televisions are equipped with a fan for cooling. Also, do not be surprised, if you suddenly feel some noise near the room - the TV is getting cold.

* * *

“So what do you choose?” - Ask you. The reasoning is simple: to lay down everything you saw for the purchase of a new television set. Like a penny, swindle, varto get up to a 100-hertz kinescope TV. Vіn ensure the pleasant quality of the picture and serve for more than a dozen years. One "ale" - great expansions can become a problem when such a "box" is installed.

Not less visually, you can buy an RK TV. The main pluses of this option are the high clarity of the image, compactness and enviable lightness. Plasma TVs and projection TVs will make you feel great, if you want to see not just a great, but a majestic screen. Today, a 50-inch projection TV is cheaper for a similar LCD size. Those same stosuєtsya and plasma. Ale for the kitchen and the sleeping room, such veletni are unlikely to come.

See modern TV sets and yogo type classification for singing signs to complete the difference. That is why, praising the decision to buy a new television possession, they are very calm about the difficulties of choice. Aje tse foldable attachments, which bathe for a long time, to that may take the high step of arrogance. Choosing this type of attachment, I want to, through a sprinkling of roques of wines, an actual set of necessary functions and high technical equipment. With the necessary parameters and optimal functionality, it is important to understand how TVs are seen among themselves.

There is no specific classification of such outbuildings. Most often fakhіvtsі pіdrozdіlyayut tv_zori z:

• technologies, from which images will be displayed on the screen;
• functional features of the accessory;
• possibilities.

Technologies for creating images on TV

Qu group of TVs is subdivided into five types:

• kinescope;
• projection;
• plasma;
• rare crystals;
• thin OLED.

kinescope televisions

If you want today in stores, it’s unlikely that you’ll know how to fit it, but in rich booths the stench will be able to function. EPT technology was widely promoted in the 90s - 2000s. How the advantages of the kinescope possession can be indicated:

• budget price (against modern outbuildings);
• possibility of repair;
• wide kut look around;
• natural colors;
• trivalent term of service.

Shortage of television sets based on electron-promenev tubes:

• broadcast impossibility digital motion(a lot of models do not transfer);
• great rosemir that vaga;
• creating an image;
• save more electricity, porіvnjano іz modern models;
• interfacing functional.

The technology of kinescope televisions has been twisted and viroblen to the brim.

Projection televisions

They are based on an optical system, like projecting a small picture on the main screen (RPTV). There are two types:

• on the basis of electron-promenev tubes;
• based on rare crystals.

The first type of projection TV may three small kinescopes(Lumpy). The skin has its own color: red, green and blue. Project a picture on the big screen, pass through a folding system of lenses, prisms, mirrors. This type of TV set is similar to a kinescope, but it only has a larger diagonal (up to 80 inches), the finest yakistyu the image is for smaller energy savings.

Plasma technology (PDP)

The thin panels with an ideally flat screen and the vivid brightness of the image (clear and succulent colors) are visceral behind the splendid view of the front types. Dzherel molding pictures small middle-pixels. Such a possession has no problems with focusing, televisions can look around wide without losing brightness. But in PDP - TVs of a small diagonal (less than 42 inches) it is problematic to get stuck in the current Full HD resolution. Do not go already about the innovative 4K and 8K. Before that, there is a small plasma panel, below the old kinescope "box". Before that, the PDP's versatility is to settle down to the temple. This technology is not able to compete with remarkably inexpensive LED screens. Virobnitstvo often recognizes congestion, although the brightness of the image of the plasma is clearly vibrated by the RK-panels by the corners of the eye, the color flow and the appearance of the matrix. Regardless of the price, plasma technology has ceased to be developed by a lot of advanced brewers.

This is the most popular middle-aged group. The work of rare-crystal outbuildings is based on polarization of the light stream. Dzherelo svіtіnnya here, on the vіdmіnu vіd plasmovyh TB, — zvichaynі luminescent lamps, otherwise, as in new models, svіtlodiodi. The stench hangs a white canvas of a brightly shining screen behind a glass plate. On the newly applied rіdkі crystals, yakі pіd vpіd elektrichnogo struma form a picture.

Representatives of this group are arguing economical energy supply and a small gang, you can easily get help. Before that, apart from plasmas, LCDs have repairable Tse characterize them as practical attachments.

Before short budget models, you can see a stutter in dynamic shots and look at the surroundings.

The most popular middleware of rare crystals. As a light-switching of the matrix, light behaves. At this stage, there are two types of scoring: Direct and Edge. At the first moment, light is restored behind the matrix. This allows you to reach a low level of black, which is why you can beat the Local Dimming technology (locally dimming the screen) and the uniqueness of the night lights. U - to another (Edge) vzdovzh screen(They can be roztashovuvatis on one side, on two or two - fallow in the rozmіru of the diagonal). Such models are energy efficient and available for those who care.

Krim vyshchezdannyh advantages of such TVs, to the strengths of LED-screens can be seen:

• a wide range of models and vibrators;
• be-yakі available on today's day diagonal solution;
• the visibility of the visible merehtinnya and defects in the focusing of the changes;
• do not worry about problems with the geometry of the image and clarity;
• miraculously suitable for movement like analog channels, and for modern digital television.

OLED TVs

The matrix is ​​based on organic light. The picture is displayed on the screen for the help of diodes, which is self-produced - it is not necessary to switch, like in LCD technology - it's a smut. Different colors of nap_providnikov_ prilady act like an independent lamp of light. OLED The technology allows you to make thinner screens for today's day (a sprig of millimeters), including .

Such outbuildings at rich times turn over their successors. Organic light allows you to take the maximum possible brightness of the image, contrast, color transfer. practical I'll take a look around, which is not compromised by plasma technology. Before that, the stench is richly light, thin and energy efficient for plasma attachments. In OLED LCD-models, the technology plays in the smoothness of the transfer of dynamic scenes, in the presence of a continuous transition.

At the moment, two manufacturers are engaged in the release of such TV models: . They have already published and presented a small number of serial displays, the price of which significantly exceeds the analogous LCD and plasma televisions. Also, as a small fraction of such models, it is possible to show, as in plasma, the degradation of pixels over time, which can lead to redundant images.

At the moment, OLED-appliances may have a non-trivial term of service - about 10 thousand years, while LCD is declared close to 60 thousand, and plasma - up to 100 thousand years of operation.

Fahіvtsі dividing televisions with screen resolution into three great groups:

• Ultra HD.

For old EPT TVs, only standard definition television is available - SD. Most of the TV channels are broadcast in this mode, models with a different building 720 × 576 pixels, 720 × 480 pixels are actual and vikoristovuyutsya a large number of coristuvachiv.

For such a TV set, access to paid channels is excluded high quality you can for help. Vaughn is seen as a provider for connecting either directly to a TV set, through or through a TV set-top box.

TVs of the new generation - LED, OLED and plasma - support TV high and suprahigh clarity. The most current format is HDTV (from 1280x720 pixels to 1920x1080 pixels). Vin available on digital TV.

For some OLED models, the best for today (3840 × 2160 pixels); 8K (7680×4320 pixels) - Ultra HD.

Maybutne for HDTV. But at the same time, in this format, less than deyaki TV channels are broadcast. Cable operators and satellite service providers are constantly expanding the list of channels that are transmitted by a high distribution building.

TB Toshiba 4K TV

How to talk about innovative formats 4K(8K), then the Vlasniks of the possession of the old support for another hour will have a chance to watch the video content of such permission only through the Blu-ray player. Prote such a screen is a miracle for videos. Small vіdstan up to the panel is not in line with the image quality, but high speed change frames and that wonderful picture will allow gamers to enjoy the maximum of satisfaction with the view.

Functionality of outbuildings

Current models can be subdivided into chotiri groups if possible:

• universal models;
• without additional functions.

Settlement with supportSmart-technologies toil. Zavdyaki tsomu from the screen of the TV set for the help of the MPC or the keyless keyboard can be easily entered into social services, corystuvatisya in a browser and supported by web services.

With the support of Smart-technologies

3 Dmodels can be invigorated by technology: active and passive. In the first view, the transmission of the picture is made through the eyes, on the skin of the eye (the eyepieces are not accessible to the eyepieces from the neck of life). Zavdyakov to whom the gazer can see the image from that one, to whom it is transmitted, with the minimum level of creation. With passive 3D, the picture is transmitted under different cuts to the eye of the beholder. Such technology, like and accessories for її vikoristannya richly cheap. And yet, the quality of the image and the diversity of buildings are transferred to active 3D.

At universal models available and ti, and other technologies.

Looking at some of the classifications of TVs, you can find an unusual visnovka, which is the most popular one LED-models. There is a wide variety of facilities for transmitting video content, as it is being actively developed at the same time, the necessary functions that are relevant for today's outbuildings. Such annexes are richer than wide model near, and the price category. The technology of plasma televisions, through the road, is gradually decreasing. OLED will come to replace them, as they will have the rest of the reach of retailers and manufacturers of television technology.

In 2014, the roci pripinivsya release telepriymachiv іz elektronno-promenev tube. Today you will not be able to know the EPT of TVs with a diagonal of 21 inches or more. More models with a diagonal screen of 14 inches or less have been lost. The hour of ELT televisions has passed, and on this day, basically, all manufacturers produce LED televisions.

TB, which is vikoristovu for displaying the image on the screen electron-promenu tube (ELT) won CRT (Cathode Ray Tube), and is called a CRT or CRT TV. The kinescope has three cathode colors (red, green, blue), which are used to shoot (analogy with harmats) the screen, coated with a luminophor, screeching when illuminated. The robot of the YLT TV set is directed to keruvannya by tsim garmats. I look at the quality of the kinescope and the quality of the control scheme to lay down the thoroughness of those pictures that we want. Therefore, when choosing an ELT TV, you need to marvel at the class of the kinescope and the clarity of the circuit solutions to reduce the brightness (filters, subsilience and other).

Traditional YLT TVs are on the market better than others, so the producers have already caught up with the technology mayzhe to perfection and zavdyakovy you can choose a more advanced, durable TV, which is good to show. If you want to save a few pennies, then you need to turn the EPT TV yourself. Serve your wines for more than ten years and still TVs in repair are the simplest.

Zovnіshnіy vglyad kіneskopnogo TV receiver

How to choose an elt TV for characteristics

The main shortfalls of EPT TVsє:

• geometric creations(For modern televisions in the high price range, it may not be remembered, especially with flat kinescopes);
• change link problem(For TV sets with a high price, it is practically unremarkable);
• great roses(to the earth, otherwise tovshchina) lower LCD and plasma (as there is a place for installation, you can not use it);
• shillnіst to the influx of magnetic fields(just do not put closer, lower by 1 meter, acoustic speakers and other magnetic fields);
• fencing on the screen(Up to 38 inches), for a small room a diagonal of 90 centimeters is enough;
• shkidlivy vpliv on people through viprominyuvannya(because of modern technologies, it has been possible to change the floorings into elt, so that you can not use it for the sake of respect);

100 Hz riser for kinescope TVs

One more small piece of a kinescope TV is a screen protector. For the introduction of 100 Hz technology, the time may be taken. Then the picture will be stable, which is especially noticeable when reading small letters, and the eyes are obviously less disturbed. With this method, the signal is received over the air with a frequency of 50 Hz, but in a 100 Hz YLT TV, the frames are remembered, and the two are created in an hour, which is the case with a great TV in one frame. Ale є nedolіki such a method. There will be commemorative loops on the swidden stages, on the transitions you will see the exits, there will be a commemorative tremtinnya along the edges of the screen. For usunennya tsikh nedolіkіv in elt TVs zastosovuyut different circuit solutions. 1-2-1-2 framing of frame drawing is used for three images. Digital filters, suppressing noise, changing the loop. The creation of intermediate frames, which are inserted between the working frames, to paint the picture more, the robots become natural. Therefore, choose an ELT TV with a 100 Hz turndown, do not hurry. Look at the picture when changing the plot (sports, racing) and praise the decision.

Sound of ELT TVs

If you do not choose to buy an additional audio system, if you want to hear a similar sound support, pay attention to the presence of decoding processors Dolby sound on YLT TVs.

Buying the road model crt, pay attention to the presence of the "picture in picture" and "picture in picture" functions, which allow you to marvel at two channels on one screen. Another function is to review freeze-frames from other channels.

kinescope parameters

When choosing diagonals for EPT TV it is necessary to freeze the distance so that the TV is marveling, and divide it by 5. The value axis will be the diagonal in centimeters (decrease the distance in centimeters). With such a view, it will be comfortable to look at the TV, You do not care about the graininess of the picture and do not need to stress the surface, to look at the details of the objects.

When choosing a format 3x4 or 16x9 it is necessary to know what you are going to marvel at. As well as watching DVDs, large-format films, it is necessary to pay attention to the 16x9 format. If you choose to watch only the TV broadcast, then choose the 3x4 format.

better select a flat kinescope lower swelling. A flat kinescope has less creation and a better picture, less glare in the light of the lower chambers. But if you don’t marvel at the TV (cottage, kitchen), then it’s not so important. First of all, TV sets with flat kinescopes are expensive.

Kinescope televisions can be good indicators of brightness, contrast and color reproduction. Behind these ostentatious stinks, a lot of LCD and plasma TVs and CRT TVs are offered only in a set of functions and old-fashioned. And expensive models with flat kinescopes may still have a lot of additional functions, which will improve the picture and work with manual control. And for the price of YLT TVs are cheaper, lower LCD TVs and plasma panels.

A film on the great screen... Singingly, little is seen from the enemy's view, we take it from the cinema. Ale yak buti, yakshcho hire the creation, scho zatsіkav you already long overdue and the film of performances only on DVD? Do you just not want to go out of the house? Well, the solution is zavzhd є - own the cinema at home! Tse is not so foldable, as it seems. For whom you need a DVD-programmer *, maybe a receiver, a rich-channel speaker system and, of course, a TV, for which you all marvel. The remaining component, singsongly, the most important - it’s rich in what to lie down, you see the effect of presence in the world, that the floorings clearly appear in the dark hall of the cinema, you take the film like a sound picture on the screen.

So why choose a great screen? Tse mozhe but for most of us a kinescope (ELT) TV, projector, projection TV, plasma panel or a rare crystal (LCD) TV. What are the gains and shortcomings of their decisions?

CLT TVs

EPT-TVs of great diagonals may be the largest component of low-cost home cinemas. The technology, which is much larger than the capital, allows the production of an extension at a democratic price. The axis is only diagonal to the screen of the large CLT-televisions, which are released at once, not exceeding 34 inches, which is often not enough, so that the whole world sees itself as a participant in cinematic action. The kinescope is a rather bulky component, so get ready for the fact that the depth of the TV set will be close to pvmeter, and the weight is close to 50 kg. (To go about the mainstream models with a diagonal of 29-34 inches, TVs with a smaller screen size can hardly be called “cinema”.) i defects and "pictures", yak - then: uncombined changes (the image is made up of decals of color elements, they are replaced one by one), “similarity” (unclear, expand the image), geometric creation (let’s say, the cola transform into ovals).

There is only one clerk left - kinescope televisions "survive" their century, new technologies for displaying the image come to replace them. As a last resort, the builders attach the main respect to the price itself, trying to work the minimum, sacrificing other characteristics.

Multimedia projectors

An alternative to a sound TV can be a multimedia projector. A large screen is placed in front of the lookers, and a small box - a projector - is installed in a handy place, the police are on the wall behind the back, or a coffee table in front of the lookers. Handy? Perfectly! A screen, the diagonal of which can be reached by a few meters (!), you can, whether it be, survive in a new place, or else burn out and take it. And the modest dimensions and weight of the projector allow you to forget about the problem of free space.

Ale є projectors and suttєvі nedolіki. The low brightness of the image on the screen suffocates the room: in the daytime, the blinds are brought to light, and in the evening, the light is bright. Vtіm, to whom it is necessary to visit - the atmosphere, like a right cinema. A dim lamp, buried in a miniature building, requires intensive cooling, so all projectors make noise in the other world. And if most models have noise on a pleasant level, then other copies are more annoying. Calling on those that the projector itself is not far from the viewers, you can seriously take an eye on the viewer.

Before speech, about the lamp. The term of її service is small and in normal mode becomes one to three thousand years (equal ten to fifteen years of trouble-free operation for an EPT TV!). The economic regime continues the hour of life of the double lamp, but for the price you happen to pay a lower cost. Tue, the fall of the brightness of the projector is often remembered already for hundreds of years of work. It is not easy to replace the lamp, but the cost of replacing a part of the projector's var.

Projection televisions

How about putting the projector and the screen in one case, turning the design into something like a sound TV? Such a "hybrid" appeared even far away from the look of a calm person. The choice of the projector instead of the kinescope made it possible to change the depth of the body in the same order as the EPT-models, having saved the brightness of the image with this handkerchief, which gives the possibility not to obscure the space for an hour of review. Zrozumіlo, for maximum brightness and contrast (like, vtim, and for comradeship), projection televisions are offered by plasma, but with equal diagonals, they are much cheaper. Projection technology allows you to save a reasonable price on models with a diagonal of 70 inches.

Truthfully, the projection televisions saved the main shortfall of the great projectors - a remarkably small term of service and expensive lamps. But the noise is not a problem: the great, behind the worlds of the projector, the case, allowing the cooling system to work, is significantly quieter.

Plasma panels

Plasma panels can be called the first outbuildings, as they allowed the whole world to sell the idea of ​​a home cinema. A detailed description of this technology (like, vtim, and about competing “red crystals”) is in front of us, at the same time, even though we looked at each other, briefly touching the pluses and minuses of plasma panels. The flat screen of the great diagonal with miraculous brilliance and contrast ensures a richer “juicy” image, lower than the traditional CLT TV. With this depth, the body of most models does not exceed 20 cm! Obviously, the price of the first plasma TVs “bited”, although it is important to call it low at the same time, but the cost of the image is expensive. In plasma panels, through the technology of forming an image, as a fact, there are no changes and geometric creation. Modern models delight with a miraculous transmission of colors, close to the sound on EPT TVs (earlier, there were some problems).

Ale є nedolіki. Nasampered tse so ranks the effect of memory. When demonstrating static image with bright areas, the phosphor in the middle of the panel burns out, and the primary trace of the “picture” is left on the screen (the logos of TV channels can be used as a butt). Due to the technological features of the "plasma", it is easy to build a panel with a great razdіlnoyu zdatnіstyu - as a minimum, the mother of a solid diagonal is to blame. If you want to look at something and do not notice, the plasma panel constantly freezes, which, when looking at it from close, calls out the languor of the dawn. To bring peace to the great energy savings and, as a result, some kind of noise from the cooling system (fortunately, it is little remembered in most models).

RK TV

And the axis of the RK-TV set appeared on the market quite recently - the technology of rare crystals was recently introduced to computer monitors. Diagonal of current mass models - from 15 to 65 inches. While the first ones can hardly be called “cinema”, then the RK TVs of the great diagonals are seriously competing with the “plasma”. Їx advantage is equal to the daylight hours (you can install the screen closer to the eye) and to the effect of memory, on average, there is more space in the building (it’s even more important to improve the arrival of the television broadcasting of high clarity), less energy and energy living, lower price for a split diagonal. Obviously, there are no daily problems with the geometry of the image, with the inconsistency of colors.

With a small amount of varto, it means less contrast of RK-TVs in pairs with plasma panels, less look around, and less inertia of the RK-matrix (on dynamic scenes, the images look like troch “smeared”). However, the remaining two problems are practically not relevant for today's models. And the axis of displaying the “picture” of low dimensionality (television air or the signal from a DVD-programmer) cannot be called ideal by actual instances of RK-TVs in the dos - not all pickers have zoomed in to “learn” their model scale capture the image with minimal loss of clarity.

Choose a kinescope TV

The cathode-promenevium kinescope (which is also called the electron-promeneus tube, EPT) is the same technology that has come down to us from the past century. The serial release of the first television sets, as they practiced for such a principle, rose to the distant 1939 rock. Prote such an important century of technology, sooner, її goodness, lower short, and even kinescope televisions are victorious and today, and also, the stench is quite satisfying for lovers to spend their free time beating blackouts wounded Also, in a more condescending way, the phrase “past century” means not “old”, but perverted by the hour of tradition.

In our hour of the greatest breadth of nabuli, about the principles of robotic outbuildings, the most "put in" the slowest already may be noticed. And the axis about those who are in the middle of the case of a kinescope television, potential buyers do not suspect.

Attachment and principle of operation of a kinescope television

As it was guessed, the main element of the TV set of the old style is the cathode-promeneus kinescope (in the English version of the Cathode Ray Tube, CRT). At each annex, the process of forming a television picture is being carried out, so that it is then displayed on the screen.

The little ones are marked with numbers:

1 - electronic harmonics (three - white color televisions, one - black and white);
2 - electronic change;
3 - focusing coils;
4 - kotushki, what they breathe;
5 - anode visnovok;
6 - shade "mask" that filters red, green and blue parts of the "picture";
7 - a ball of phosphorescent phosphor, which covers the inner surface of the screen, with areas of red, green and blue light;
8 - an enlarged image of the phosphor coating on the inner side of the screen.

Essentially, electron tube a glass flask, in the middle of which a vacuum is created. Under the influx of electricity, electronic harmonics (1) begin to release the change (2), as if to pass through the kinescope tube. Changes, which are directed by electron flows, are caught by a system of coils that focus and breathe (3, 4). Electromagnetic coils redirect the change to the anode coil (5), which sends electricity to the mask-filter (6), which distributes the heat flow to the warehouse color. The oldest models of black-and-white TVs have a color filter, obviously, it is daily.

The process of appearance of the image on the screen can be described as follows. After the molding and filtering of the light streams, the exchangers are used on the inner surface of the TV screen (7), which is invisible to the viewer (7). Luminophorne coating is made up of red, green and blue particles, which shine under the influx of a change of vibrant color. Covered with a luminophore, the surface does not visibly shine, only light particles of speech are lightened - in this way, an anode visnovk is used to form a bright flame on the screen, which moves smoothly. The flame is collapsing across the screen in a row, levoruch and the beast down, but moving more quickly, imperceptibly for human eyes, looking at the whole image. Obviously, the higher the frequency of screen refresh (the period of “breakthrough” of light from the first to the last point), the more the image appears.

The tube of the kinescope is extended perpendicularly to the surface of the screen, which means that it takes up a lot of space under the TV body. For this very reason, the body of such an extension is built with such significant dimensions and it is super thin, like in modern plasma or rare-crystal TVs, which is impossible for purely technological reasons. It is not surprising that kinescope devices were taken away among the people by the lower name - “boxes”!

Main technical characteristics of kinescope televisions

Now, if we have taken away the big news about the work of the kinescope, we can start choosing a TV. In principle, the main parameters, where next to be oriented at the time of choice, are quite obvious. Prote nedosvіdchenі pokuptsi can not return respect for important technical details, yakі zіpsuyut satisfied vіd revisiting a beloved series or an important sports match.

1. Expand that form to the screen

Buying "at the end" from the majestic world of television broadcasting, it is important not to have mercy on the worlds, otherwise look farther away not so richly. It is obvious that televisions with the largest diagonal screen are large in size, so the owners of small-sized lives will have a chance to stream their appetite. At kinescope televisions in the world, the expansion of the screen expands not only the height and width, but the depth of the body, which means that you don’t have to bet on the big screen, in case the buyer can get stuck with a great problem: rooms.

Most of the EPT-TVs have a diagonal of 10 inches - watching programs on them cannot be called comfortable. The optimal minimum is 14-15 inches, TVs with such parameters are produced by almost all brands. More popular screens with a diagonal of 20 to 25 inches. TVs with such dimensions miraculously fit into an average statistical apartment and can, as a rule, over dialing the most requested functions. The most important are 29-inch kinescope TVs, but for sale you can know models with a 34-inch screen. All spravzhnі giants, stench fit only for great applications and sound installed on special pedestals, which are supplied as a set or for decoration.

When choosing a TV set, it is important to remember about such a parameter, as it is comfortable to look at.

Orienting on this table, it is inconvenient to designate a different expansion of furniture in the area of ​​​​repairing the living room, and, on the other hand, you can see how the separation of the TV stand and sofa and armchairs can be. Buying the EPT-TV, it is necessary to plan ahead for the installation space. As if we are standing in a furniture niche, then the obov'yazkovoy umovoy є presence of a gap between the walls of the niche and the building of the annex, with which it is not possible to cross the access again to the ventilation openings. In another turn, the TV set will overheat and get out of tune.

The screen format is also important. With the classic width and height ratio of 4:3, it is best to watch the mainstream television programs. Large-format screens with 16:9 aspect ratio are ideal for watching videos, as the TV is the most practical in pair with a DVD-programmer, the wide format is shorter. There are also fewer popular formats that allow you to capture images from the smallest creations. Modern TV models have the function of automatic format adjustment.

Change of screen formats

The clarity of the image lies in the geometry of the screen. Vipukliy kіnescope dosit strongly encourages the "picture". In order to make the image as realistic as possible, it is better to choose a TV set from a flat or super-flat screen.

2. Raising frequency- this is one of the indicators of the clarity of the image. According to the principle of operation of the kinescope described above, the image on the screen shows a spark of light of phosphor particles. The very frequency of the rise is determined by the speed of the light moving across the screen. In old models of televisions, the display was 50 Hz, so it was obvious to the viewer that the “picture” would freeze. When watching TV programs trivially, the unstable image caused a lot of damage to his eyes. Modern kinescopes provide a frequency of 100-120 Hz - this indicator is considered optimal for televisions with a great diagonal, the instability of the image is especially noteworthy.

It should be noted that at a screen refresh rate of 100 Hz, there is sometimes a loop effect in the form of objects that move quickly in the frame. To stabilize the "picture" of vicorist companies, vicorists use special technologies. Buying a large-sized TV, varto pay attention to the technology of image stabilization: for which Digital Plus, Digital Scan Natural Motion, Super Digital, Digital Mastering or Intelligent Mastering, fallow depending on the model.

3. Speakers

TV programs - the same visual range, that's harder and even more sounding - one of the main technical characteristics. Smaller TVs are often equipped with single speakers, while larger models do not have stereo speakers. Independently from a small number of speakers, the stench will always roam on the frontal surface of the case, sound from the bottom or from the sides of the screen.

Standard expansion of the speakers under the screen (left-handed) and on the sides of the screen (right-handed)

Expensive modern EPT TVs often use subwoofers that transmit low frequency sound, that surround sound system based on Dolby Pro Logic or Dolby Digital technology.

4. Sockets for connecting external outbuildings

As you can see, a TV set cannot work by itself, for receiving a signal it needs an external antenna or a digital cable. Maybe, among today's TVs it is impossible to know any other model, as if it were equipped only with a rose for the antenna. For a complete audio recording, at least audio and video outputs are required, to which a video recorder and a DVD-programmer are connected.

Minimum number of sockets: socket for TV antenna and RCA socket for audio video signals

In addition, the set of roses will not appear, we will use the analog VGA port and the universal SCART port - you can connect multimedia equipment, satellite or digital receiver to it.

5. How to watch TV

Remote controller remote care has long become an indispensable attribute of the television. This simple and handy attachment allows you to switch channels, adjust the level of sound and switch off a lot of other procedures without getting up from the sofa. Tim is no less, on the front panel of the TV, as a rule, you can find the main control buttons, which duplicate the power keys of the remote control, the power button sounds, the volume controls and the buttons for switching through the channels.

Buttons keruvannya, roztashovani on the body of the TV

Selecting a TV set, do not buy such a model, on the case it would be duplicated the entire set of buttons on the control panel - such an attachment would be too cumbersome. Sufficiently less than the main keys, so you can sing, like in the remote control there are batteries.

Pros and cons of EPT-televisions

Shards with the main technical characteristics of EPT-TVs have already been sorted out, it is necessary to look at the strengths and weaknesses of their outbuildings.

Advantages:

• low price;
• great diversity of models;
• garna is the quality of the image;
• realistic transfer of colors;
• trivalent term of service (about 15 years).

Noodles:

• large dimensions of that vaga;
• a negative injection on the zіr pіd hour of a tribal review.