It's no secret that every year more and more market participants (both producers and consumers) are interested in "flat-panel" TVs. Firms actively translate intellectual resources and production facilities for the creation of liquid crystal and plasma TVs. An increase in the volume of these High Tech models leads to a decrease in value, the circle of potential buyers is gradually expanding ... so unwinding the handwheel of the product "product-money-money" process. This situation could not but affect the situation with traditional kinescopic (CRT) TVs. Now CRT models of small (14-21 ") and medium (25-29") diagonals withstand competitive struggle due to the price. And what about luxury TVs with a diagonal 32-36 "? Here the question of choice takes a threatening categoricality. 36 inches is practically the limit for kinescopic technology. Such devices essentially represent High End-sector of the television world, and in money are not solid PDP- and LCD-panels (diagonal 32-42 inches) from the lower price category. Tellegants have another competitor who has declared their rights to the main role in the home theater - video projectors. For $ 2000-3000, projectors are already offered to satisfy the defaults of the legible Kinomanov (see the Test in the September S & V, 2003). However, we will not forget that the top-class kinescopic TVs are the top of technological advances, they have experience in them, dozens of years disassembled by developers' firms. Among buyers there are enough rationalists, not inclined to invest in the only created technologies (plasma and crystals - in development); not every consumer is ready to put up with restrictions (projector T Retails blackout in the room). And so many of us are asked: what is the potential of widescreen kinescopic televisions, do these giants have the stock for the struggle for the existence of total miniaturization in the era?
In the current test - some models, and everything is from firms supporting the production of television with a diagonal of 36 inches. Along the way, we note that the technique of such a serious level is released only by the Grande AV industry. Let's try to determine the overall features of the current participants. If you do not count the weight gaining 100 kilograms, the main feature is digital chassis and systems used in the struggle for image quality. This is important because even minor flaws pictures are becoming noticeable on the meter screen. When receiving television, digital video signal processing improves the quality (for example, the separation of brightness and color signals helps a digital comb filter). Through the use of digital filtering tools, an effective decrease in color noise is achieved. If the TV video input comes in a component (divided into brightness and color components) a signal, for example, from a DVD player, with a minimum noise level, then in this case the digital algorithms are imposed on the extremely difficult task to correct what to fix it seems impossible - flickering of the 50-hertz sweep and lower case image structure. Recalls the increase in frame frequency (notorious "100 Hz") or the conversion of interlaced sweep in progressive. In addition, depending on the quality and format of the image, different processing algorithms often require (in modern devices there are different modes). All this in the end and makes up a high end-TV portrait with a large screen. However, it's time for this portrait-screen to look carefully ...
Philips & NBSP36PW9618.
Perhaps the main feature of the model 36pw9618 / 58, highlighting it against other test participants, is self-sufficiency: a representative of the elite MatchLine series is essentially a very attractive solution for home theater, so to speak, "everything is in one". For a complete set, there is not enough DVD player ...
The control buttons made on the top panel are convenient and easily accessible (the solution that has become a business card of the top models of the company). The universal remote control is able to control five AV complex devices. The COMPASS GUI graphical interface is very ergonomic and can be said simply elegant. For example, when setting up a region, a map of Europe appears on the screen, and the point indicates Russia. Additional frontal connectors are hidden in deep niche on the sidebar, which creates some difficulties if you need to quickly connect, such as camcorder. The status of the elite model emphasizes a set of digital image processing technologies. The user can choose to view a specific program to a digital algorithm: Pixel Plus, 100 Hz Digital Scan or doubling strings (progressive sweep). Liked the operation of the Active Control system - adjustment of the parameters of the image depending on the ambient lighting conditions. In our opinion, its presence is especially important for theatrical TV. When moving from viewing television programs to a demonstration of films with a DVD or satellite tuner, it will not be absolutely not superfluous to use some blackout - in this case, Active Control will quickly and accurately remore the entire set of image parameters.
According to measurements that are consistent well with viewing impressions, the model has excellent indicators for the definition of the image and brightness; Detailing pictures at height. The most effectively the device demonstrates its "fine" capabilities on the landscape scenes, when the space filled with the Sun acquires the volume and enchants realistic. However, if the color shades are quite natural on bright plots, the blue-green tones are beginning to prevail on fragments with low color saturation (with a small level of brightness, the color temperature increases; see measurement results). The image with DVD is distinguished by bright, juicy, sometimes too saturated tone. Slightly reduces the visual impression the presence of digital noise. Bruise digital correction modes if it improves the situation, then slightly.
Sound accompaniment is characterized by a large power supply. The developers tried to focus on the mid-frequency range to increase speech intelligibility.
The rich features of digital image processing, a set of theatrical decoders, amplifiers and acoustics, as well as convenient management will appreciate supporters of comprehensive solutions in the construction of a home theater.
Measurements
Schedule color coverage
Technical comment
Excellent brightness and color clarity (500 and 150 TVL). Contrast amounted to 32: 1. Color coverage is narrowed from red and green, while the color temperature of the saturated white field turned out to be 8150k. The value of the color temperature on small and medium brightness fragments is overestimated and is about 9000K. Brightness uniformity is not the highest, the relative spread amounted to 57%. The brightness response does not correspond to linear behavior only on the darkest fragments. Color homogeneity is one of the best in the test - the difference in the screen field is only 750k. The sensitivity of the tuner is enough for urban reception conditions (-45 / -65 dB).
Samsung & NBSPWS-36Z4HFQ
The design of one of the largest representatives of the SAMSUNG model range from the branded traditions also carries the features of individuality - the screen is enclosed in an elegant frame visually standing out on the background of the front panel. Frontal AV connectors are conveniently located on the side console. We also note the VGA-input, which allows you to use TV as a giant monitor.
Full access to TV control is possible only from the remote control; Using the buttons on the front panel, you can enter only on the local menu and configure the main parameters of the image: brightness, contrast, colors saturation; Adjust the volume of speakers and headphones.
The presence of digital video signal processing systems DIGITAL PROPICTURE and TOTAL DSP System allows noticeable to adjust the image quality. The most saturated, natural and deprived of the "gear" of oblique lines The image of the TV produces in Progressive mode, however, it becomes noticeable flickering of frame scan. Among the design features is a rich set of connectors: In addition to the VGA entry, there are three SCART'A (with RGB- and S-Video inputs), input for colorware component signals, connectors for connecting external acoustics and linear audio outputs Dolby Pro Logic decoder. The basis of the functional dialing is the digital image processing modes, five gradations of color temperature, image presets, and sound, six format adaptation modes, stop-frame, PIP and MULTI PIP.
The output that can be done on the basis of a multilateral assessment of the image quality is almost always possible to achieve realistic colors transfer, using the adjustment of the color saturation and the brute force of the color temperature profiles. At the same time, the colossal margin in brightness and one of the highest indicators in contrast give the image volume and detail. The situation with noises is somewhat worse: a small colorful noise is noticeable on the essential programs with a weakened signal level in SECAM. When viewing the video with DVD, the image is distinguished by a good dynamics and a comprehensive color shades, and the minimum level of digital artifacts on dynamic fragments add realism.
The sound picture has a distinct spatial organization, bass worked well. However, there is some sharpness at high frequencies, especially at high volume (apparently, by increasing the level of distortion).
At a reasonable price, Samsung WS-36Z4HFQ attracts a juicy picture, functionality and quality limit of constructive work.
Measurements
Schedule color coverage
Technical comment
The TV has demonstrated good results on the brightness and color definition - 490 and 140 TV. Image contrast is one of the highest in test 52: 1. Color coverage is slightly narrowed on the side of green and slightly - in the field of red tones. The device has excellent color uniformity (the scatter was only 400K), but the average level was below the reference value (about 4200K). Brightness uniformity average - relative scatter was 48%. The homogeneity of the color is good, the difference between the maximum and minimal color temperature over the screen of the screen was 1110k. The sensitivity of the tuner is one of the highest in the test (-60 / -65 dB).
Sony & NBSPKV-36HQ100K
Measurements
Schedule color coverage
Technical comment
The brightness of the clarity turned out to be the highest in the test - 510 TVL, the color clarity with the average - 120 TV. Picture contrast 1:60 is the best in the test. Color coverage is slightly distorted in the Red region, but white coordinates are close to reference. The color temperature in dark areas varies in a large range from 2000 to 8000K, and on medium and light areas, on the contrary, constant. At the same time, the average value for all gradations is gray very close to the reference - 6700K. The brightness uniformity is not at the height - the relative difference was 72%. Color uniformity is also not a record - the scatter turned out to be equal to 2380k. The tuner pleased with its sensitivity: -58 / -65 dB.
Buy TV - The matter is serious, and approach the choice of an indispensable element of modern life must be responsible. What model to choose, then do not regret the ill-conceived solution?
Screen size
When choosing a TV, first of all, you need to decide on the size of the diagonal screenBased on the size of the room, the distance for a comfortable viewing and your own wishes. The fact is that if it is small, it will be difficult for you to distinguish small details, and if the variegated - separate points will be noticeable on the screen, which also does not improve the images.
As for the magnitude of the diagonal of the screen, then it should be attentive: sometimes manufacturers indicate the size of the visible part of the image, and sometimes - the full size of the kinescope.
Screen diagonal size Indicate either in inches (") or in centimeters (cm). There are certain "sizes" of the screenFor which they are divided into groups. The most common TVs 14 "(37 cm), 20" (51 cm), 21 "(54 cm), 25" (63 cm), 29 "(72 cm), 32" (81 cm), 34 "(87 cm ), 36 "(92 cm). The more diagonal, the greater the size of the TV itself. If you plan to put in a niche, then you must have gaps between the TV and the walls of the niche to provide free air circulation. therefore cannot buy TVwhich becomes close to the niche, without stock.
For health security reasons, the recommended distance to the screen when viewing the 4: 3 TV format should be from 3 to 5 diagonals of the screen, and for widescreen TVs 16: 9, by virtue of the image transmission features, the recommended viewing distance is 2.5 - 3 diagonals Screen. Based on this rule, with a diagonal 21 "you can buy if the screen is 1.5-2.5 m., 29" - 2-3.5 from the screen to the location.
Also, when choosing a diagonal of the screen, you should not forget whether it will be stationary (i.e. constantly in one place) or will move from place to place. For the transfer, televisions with a diagonal 14 are ideal. Most manufacturers are equipped with such devices of their own antenna for reception in places that are not equipped with a stationary antenna.
Type of kinescop
Today there are several ways to get an image on the screen.. Depending on the implementation of each method, ordinary film blocks (CRT TVs), projection televisions, LCD (LCD) TVs, plasma panels (TVs) are distinguished.
Kinesque TVs (CRT TVs)
CRT TVs - the most common type of TV. TVs with traditional, glass kinescope, screen size in most cases does not exceed 38. The image is obtained by hitting the three electronic rays onto the inner surface of the kinescope, which is covered with phosphors. The rays consistently scan the surface of the screen using the deviation system - the joints of the special shape fixed on the neck of the kinescope. The resulting image consists of red, green and blue dots. Kinescopes in all television usually are divided into ordinary convex, flat and superplane (Flatron technology, etc.).
Disadvantages of ELT TVs:
- The size of the TV screen is technologically limited (about 38 ").
- Large dimensions.
- Problems of rays information, geometric distortion, focus, color purity, effect on the image of magnetic fields.
- If the frequency of the TV screen is below 100 Hz, then when viewing such a TV, the eyes are very tired.
Advantages of CRT TVs:
- A huge variety of TV models of televisions.
- Low cost.
- Exhaust to technology limit and circuitry.
- High quality image and the most natural color reproduction.
- Large service life (up to 15 years).
LCD LCD Televisions
To date, such TVs are considered the most promising. The image on such monitors is displayed by highlighting the screen from the back side of the white lamp, and the RGB main colors cells, located on the three panels of the corresponding colors, skip or do not pass through itself, depending on the control. Control elements are manufactured by spraying on the screen (TFT- Thin Film Transisor - thin film transistors). Most modern LCD televisions do not exceed the diagonal size.
Disadvantages of LCD TVs:
- High price.
- A noticeable dependence of the shade and brightness from the viewing angle.
- The inequilization of the brightness of the image and unnatural transmission of colors.
- The probability of "burnout" of pixels, as a result of which constantly burning points appear on the TV screen.
Advantages of LCD TVs:
- Flat, high quality image.
- Small thickness.
- Low power consumption.
- Due to the lack of a screen update - ergonomics in relation to the human eye.
Projection TVs and projectors
The image in such types of TVs is obtained on translucent (for projection TV) or reflective (for projectors) screen, the marginal size of which for projection TV is about 60 "and up to several meters for projectors.
According to the principle of operation among projection TVs, the following types are distinguished: on the kinescopes (with reverse projection), on LCD matrices and microequies (DLP):
- Projection Televisions on Kinescopes (CRT)
In the projection televisions and projectors on the kinescopes, 3 very bright small kinekop basic colors are used, the image from which through the optical system and the mirror gets on the screen. Disadvantages: low image brightness, focus problems, "burnout" of a fixed part of the image with long viewing. Advantages: Natural Color Transfer and Large Image Size. - TVs on LCD (LCD) matrices
Projection TVs and projectors on LCD (LCD) matrices have 3 matrices of the main RGB colors or one tricolor matrix, the image with which is projected to the screen through the optical system. Light is created by a powerful lamp. For a three-person system, the separation of the light spectrum of the lamp on the color components is optical. Disadvantages: nonideal flow of colors and not enough fast screen update. Advantages: relatively low cost, bright screen, small dimensions. - Projectors on microercals (DLP - Digital Light Processing - "Digital Light Processing")
This technology was developed by Texas Instruments. At the heart of the system - a microcircuit (DMD chip), inside which is electrostatically controlled microerkal (about 2 million microercals), each of which forms the image point in a specific place of the screen. DLP projectors are distinguished by the number of DMD chips, from one to three. The highest quality system with three DMD chips. For DLP TVs, high contrast is characterized, very accurate color rendering, high brightness, very clear contours of images. Disadvantages: Lamp service life - several thousand hours, this is a "consumable material", which is worth it, depending on the type, from a hundred to a thousand dollars; The use of such a powerful lamp entails the need for additional cooling, and this is a fan that may be noise. When the supply voltage is disappeared, the lamp overheats sharply (the fan does not work, the heat is not discharged) and the lamp will have to be changed ahead of schedule by contacting TVs. The same thing happens when air filters are clogged if they are provided in the system.
Almost all projection TVs have high-quality sound with a good output power, while many have built-in subwoofers, equalizers and systems for creating surround sound. And in the models with a 16: 9 screen format, as a rule, a built-in Dolby Pro-Logic home cinema processor and included in the rear speakers are provided.
Plasma panels (TVs)
Disadvantages:
- High price.
- High energy intensity and lack of color accuracy.
- With long viewing of the still image, the brightness drops over time.
- There is a possibility of "burnout" pixels.
Advantages:
- Big, up to 60, flat, bright screen, small thickness and complete absence of problems, linearity, focus, etc., characteristic of kinescopic televisions.
- Lack of screen flicker, harmful radiation.
- Large viewing angle.
Format: 4: 3 or 16: 9?
TV format - screen size, suitable for one or another image size. There are two formats 4: 3 and 16: 9. Format 4: 3 is the most common, telecast is broadcast. Some models of TVs with such a format allow you to play a 16: 9 format image. In this case, the picture is reproduced entirely, but with black fields from above and below. If the TV does not support the format 16: 9, the image is stretched into full screen, but is cut off from the sides. On the territory of Russia, broadcasting in format 16: 9 is currently not conducted. Therefore, while this format is relevant only for receiving television programs from satellites and to view records from video records. 16: 9 TV stems allow you to play and regular programs - in 4: 3 format - but at the same time a slight piece of the image is cut from above and bottom. // tvlist.ru.
Consider the troika of TV-giants from leading manufacturers. Possessing solid sizes, they are suitable for installation in the halls and large living rooms. From watching television programs on such a gadget, his owner gets great pleasure, discovering the incredible opportunities for advanced technologies. The thoughtful design and the enormous potential of televisions with a large display gives them an exquisite view, opening up users wide functionality.
LCD TV LG 105UC9V
This device is produced by the Korean company and belongs to the premium equipment. The TV, manufactured since 2014, is distinguished by a giant screen and excellent sound, providing a stunning image. The bentness of the device screen eliminates the emergence of problems associated with distorting the picture on the edges. A sound system consisting of nine bands was developed by the specialists of the American company Harman / Kardon and harmoniously inscribed in his thin case. Read below with the technical parameters of this model:
Dimensions and delivery set
The TV is equipped with an Ergonomic LG Magic Remote remote control that supports the entire solid set of functions performed by which allowing one touch to go to the desired site, select the information you are interested in or visit the online application store. At the same time there are fewer buttons on the remote than on the usual PU from the TV.
Feature of the console - the presence of an accelerometer, which actually performs the functions of a computer mouse by moving the cursor over the display depending on the movement of the hand.
The dimensions of the gadget with the stand are 2494x1515x483 mm, and the weight of the equipment is 155 kg.
Model design
The appearance of the gadget corresponds to the premium class. Thanks to the smoothly curved screen, a feeling of complete immersion is created in the image, which is ensured due to the equal distance of its surface from the viewer's eye, so even the edges of the image details are clearly visible. The display has a beautiful finish and placed in a thin frame, which gives the ease of the model.
Specifications
Among the main parameters of the LG 105UC9V should be allocated:
- Equipment of the device with a powerful 4 core processor.
- Update frequency? 200 Hz.
- The WEBOS operating system, which is characterized by a rich selection of applications for downloading and understandable interface.
Screen
The main parameters of the display are as follows:
- The LG 105UC9V diagonal is 105 inches or 268 cm.
- The ratio of the screen format is 21: 9, allows you to enjoy viewing, as if while in the present cinema, without the presence of black bands located in the upper and bottom of the screen.
- Image reproduction is carried out in 4K Ultra HD format.
- High-tech resolution of 5120x2169 points, it provides the integrity and detail of the image even at a very close distance.
- TFT IPS matrix.
TV speakers
The sound support of the gadget is also at the highest level. Its sound system 150 W is equipped with built-in stereo speakers that convert the sound and making it more perfect. The viewer looking at the transfer on it is created by the impression of staying in the cinema. In general, the acoustic system is represented by 9 speakers, giving high quality sound.
Additional features
- Internet access using LAN or Wi-Fi module. This feature is in demand from Smart TV users, since it allows you to watch your favorite films, multiplication films, sports programs, television serials, music clips, as well as channels of other countries, and not to be attached to the TV shows, which is offered for viewing with the configured channels.
- Confident wireless internet support providing a viewer is a continuous and comfortable view.
- Protection against Children, Sleep Timer, Built-in Camera, Skype and 3D Support, Gesture / Voice Management.
- LED backlight Direct LED.
Cost of LCD TV LG 105UC9V - from 4,378,000 rubles. Gadget video review See below:
TV SAMSUNG UE105S9.
Samsung UE105S9 - refers to one of the largest Korean television devices released in 2014. Thanks to the curved screen, a saturation of the color palette is ensured, the black color becomes a deeper shade, and the white becomes cleaner. When viewed it creates a sense of real presence, since in addition to unsurpassed color reproduction it has a surround sound. This miracle of modern technology also occupies a leading position in the ranking of the largest televisions. But its price is fully justified, since the gadget is made according to the latest technology, differing impeccable quality.
Design device
LG 105UC9V is distinguished by exquisite design. Its screen is located in a curved frame, decorated with expensive metals, which helps to express the personality of its owner. The TV is an excellent addition to the Big Hall, gallery or spacious apartments. Gadget dimensions - 2601x1811x662 mm, and the weight with the stand is 107 kg.
Picture
Screen diagonal - 105 inches or 267 cm, configuration - 16: 9, and screen resolution is 3840x2160 mm. The display is distinguished by the following characteristics:
- The UHD image provides clarity of transmission and realistic picture.
- The presence of the Purcolor function contributes to the natural color reproduction, reproducing natural colors, the most close to real shades.
- The use of innovative technology provides high clarity to dynamic scenes.
- Thanks to the implementation of CMR technology, the blurring of the image is eliminated, so it turns out very clear.
- Support 4K UHD and 2D format conversion in 3D.
- The viewing angle is 178 degrees.
TV speakers
The powerful sound of the device is ensured due to the presence of five speakers. The transmitted sound is very clear and literally fascinates the viewer. The sound power is 120 W.
Additional features of Device
As the TV belongs to the Smart TV category, it opens access to the huge world of all sorts of entertainment:
- Using access to the Internet, the owner of the Samsung UE105S9 has the ability to communicate on Skype and use a number of other applications. The gadget supports teletext.
- The device provides the Multi-Link SCREEN function, which is viewed in view on one screen of information from several sources.
- You can control the TV using the console, as well as voice or gestures.
Technical parameters of the model
In addition to large sizes, image and sound quality, this TV is impressive with its technical parameters:
- The sweep frequency is 1200 Hz.
- Update frequency - 1000 Hz.
- The presence of LED backlight.
- Ability to record video to a USB drive.
SAMSUNG UE105S9 cost - 6,000,000 rubles. What does the TV look like, watch in the video:
Sony KD-85X9505B TV
Sony KD-85X9505B is the flagship model that has been released in 2014. The device is distinguished by classical execution. It has a thin case and resistant legs. High update frequency allows you to get a realistic image that does not contain glare. The wealth of shades amazing imagination, pleaseing his owner living paints. Watching programs and videos on this device is very nice. The SMART TV feature opens the opportunity for online watching movies, sports and other programs for its users.
TV design and dimensions
Sony KD-85x9505B TV with liquid crystal display. The model has an original design and diagonal of the screen of 85 inches.
The dimensions of the device with the stand - 1957x1576x591 m, and its weight is 73.7 kg.
Picture
The television display format is 16: 9, which provides a comfortable view of your favorite content. In addition, the display is distinguished by the following characteristics:
- Screen resolution of 3840x2160 pixels.
- Thanks to the four-fold detail, an image appears on the screen containing over 8 million pixels. Therefore, the clarity of the image compared to the resolution of Full HD format increases four times.
- The excellent quality of each pixel is guaranteed by an improved processing system, which allows you to watch the transfer, even being at a short distance and fully dive into the process of viewing your favorite content.
- The active technology of forming a three-dimensional image allows you to enjoy the realism of what is happening on the TV screen to its owner using stereo users.
TV speakers
The device body is distinguished by non-standard design with a length of a tube 1.2 m. This contributes to the best sound of low frequencies, increasing their power and range, simultaneously filling the space with a surround sound. The device supports Nicam stereo sound. Sound power 40 W.
Device characteristics
- Equipment LED backlight.
- Speed \u200b\u200bfrequency of the device - 800 Hz.
- Gate technology with 2D conversion in 3D format.
- Support 4K UHD.
- The ability to record an audio and video file on a USB drive with the subsequent playback of the recorded on the screen.
Additional features
- The Sony KD-85X9505B is implemented with the ability to wirelessly connect to the Internet.
- The presence of a built-in camera and installed applications opens up opportunities for social networks on Skype.
- The gadget features the "picture in the picture" function.
- The equipment interface has four HDMI ports and headphone output. All cables are distinguished by convenient accommodation. The port replicator has a compact size, so the TV can be installed close to the wall, and at the same time get convenient access to the connectors.
- Mobile High-Definition Link allows you to exchange data between a TV and a device, which is connected to it, as well as perform it to recharge.
- Wireless synchronization between Sony KD-85x9505B and mobile devices is provided by the NFC interface.
- The television equipment with a touchpad makes it easy to control them with a slight touch to the touchpad. The console does not even need to be directed to the TV, as it works on Bluetoth.
- The TV SideView application allows you to control the viewing of the TV channels using a smartphone or an iPhone.
- The natural image is saved on the device screen when turning up to 88 degrees, and excellent detailing and the depth of black shades is provided with high contrast technology X-Tended Dynamic Range ™ Pro.
- The use of the TRILUMINOS ™ screen technology contributes to the magnificent reproduction of the most complex shades: blue, green, red.
- The device provides views of the essential gear, adopts digital and satellite television programs, as well as encoded satellite channels.
Widescreen TVs included in the top three of the above leaders are successfully able to replace the cinema visit to their owner. These modern gadgets have a function of ultra-highly clarity 4k and demonstrate a picture of unsurpassed quality. The image is obtained so realistic that the effect of presence is created, and the impression that everything seems to come to life. The presence of high-quality surround sound and other popular functions combined with a simple interface make LG 105UC9V TVs, Samsung UE105S9 and Sony KD-85X9505B luxurious accessories that are not everyone can afford to purchase. Therefore, these devices come to the domestic market in the number of several pieces.
Types of modern TVs and their typical classification according to certain features are quite diverse. Therefore, making a decision on the purchase of new television equipment, many consumers face the difficulties of choice. After all, this is a complex device that is purchased for a long time, therefore must have a high degree of reliability. Choosing this type of device, I want to be in a few years he had a current set of necessary functions and high technical equipment. To with the necessary parameters and optimal functionality, it is important to understand what the types of TVs differ from each other.
There is no specific generally accepted classification of these devices. Most often, experts subdivide televisions on:
- technologies, with which the image is built on the screen;
- functional features of the device;
- opportunities.
Image creation technology on TV
This group of televisions are divided into five types:
- kinescopic;
- projection;
- plasma;
- liquid crystal;
- thin OLED.
Kinescopic TVs
Although today in stores it is unlikely to be able to find such devices, but in many homes they still function. ELT technology was widely used in the 90s - 2000s. As the advantages of kinescopic equipment can be noted:
- budget price (compared to modern devices);
- the ability to repair;
- wide viewing angle;
- natural colors;
- long service life.
Disadvantages of televisions based on electron-ray tubes:
- the impossibility of broadcast digital broadcasting (Many models do not even provide);
- large size and weight;
- image distortion;
- consume more electricity compared with modern models;
- limited functionality.
Technology of kinescopic TVs has been studied and developed to the limit.
Projection TVs
They are based on an optical system that projected a small picture on the main screen (RPTV). There are two types:
- based on electron beam tubes;
- based on liquid crystals.
The first type of projection TV has three small kinescopes (lamps). Each has its own color: red, green and blue. Their rays, before you plan a picture on a large screen, pass through the complex system of lenses, prisms, mirrors. This type of TVs is very similar to the kinescope, only the greater diagonal (up to 80 inches), the best image quality and less power consumption.
Plasma Technology (PDP)
These thin panels with an ideal flat screen and excellent image quality (bright and juicy colors) differ significantly in appearance from previous types. The source of the formation of the picture is a large number little pixel cells. In such equipment there are no focus problems, the TVs have a wide viewing angle without loss of quality. But in PDP-TVs, a small diagonal (less than 42 inches) is sufficiently problematic to apply the full HD resolution today. It's not about innovative 4k and 8k. In addition, even the smallest plasma panel than an old kinescopic "box." Everything else, the cost of PDP equipment is high enough. And at the moment this technology is unable to compete with relatively inexpensive LED screens. Production often suffers losses, although the quality of the plasma image significantly wins the LCD panels at the viewing corners, color flow and the resulting matrix. Despite this, the plasma technology has ceased to develop many leading manufacturers.
This is the most sought-after consumer group. The work of liquid crystal devices is based on polarization of the light stream.The source of the glow here, in contrast to plasma TV - ordinary fluorescent lamps, or, as in new models, LEDs. They illuminate a white light reflecting screen behind a glass plate. Liquid crystals are applied on it, which under the action of electric current form a picture.
Representatives of this group are different economical power consumption And low weight, they can be easily using. In addition, compared with plasma, LCD equipment repairabilityThis characterizes them as practical devices.
The disadvantages of budget models include a delay in dynamic frames and a limited viewing angle.
The most popular liquid crystal consumers. LEDs protrude as the matrix backlight. At this stage, manufacturers use two types of backlights: Direct and EDGE. In the first case, the LEDs are installed behind the matrix. This allows you to achieve a low level of black, thanks to which I can use Local dimming technology (local darkening of the screen) and avoid lateral lights. Second (EDGE) light sources are located along the screen (can be located on one side, on two or four - depending on the size of the diagonal). Such models are energy efficient and more affordable for consumers.
In addition to the above benefits of such TVs, the strong parties of the LED screens can be attributed:
- wide range and selection of manufacturers;
- any diagonal solutions available today;
- lack of visible flickering and defects focusing rays;
- there are no problems with image geometry and clarity;
- perfectly suitable for broadcasting not only analog channels, but also modern digital television.
OLED - TVs
The basis is the matrix with organic LEDs. The picture is displayed on the screen using self-evaluating diodes - no backlight is required, as in LCD technology is the main thing. Multicolored semiconductor devices act as independent light sources. Oled. Technology allows you to create the most thin screens today (several millimeters), including.
Such devices are many times superior to their predecessors. Organic LEDs allow you to get the highest possible brightness level of the image, contrast, color reproduction. Practically unlimited viewing anglewhich is not at all inferior to plasma technology. In addition, they are much easier, thinner and energy efficient plasma devices. In LCD models, OLED technology wins in smoothness of the transfer of dynamic scenes, the lack of constant illumination.
At the moment, two leading manufacturers are engaged in the release of such TV models :. They have already been released and several serial samples are presented, the price of which is significantly superior to similar LCDs and plasma TVs. Also as a lack of such models, as well as plasma, degradation and burnout of pixels with time, which leads to residual images.
At the moment, OLED devices have a short service life - about 10 thousand hours, while LCD has stated about 60 thousand, and there are up to 100 thousand hours of work at the plasma.
Specialists subdivide televisions on screen resolution into three large groups:
- Ultra HD.
For old CRT TVs, only standard definition television is available - SD. Since most of the TV channels are still broadcast in this mode, models with a resolution of 720 × 576 pixels, 720 × 480 pixels are relevant and used by a large number of users.
For such a TV, access to paid channels in high quality can be used. It is issued by the provider to connect either directly to the TV, through or through the TV console.
TVs of the new generation - LED, OLED and plasma - support television high and ultrahigh clarity. The most relevant format is HDTV (from 1280 × 720 pixels up to 1920 × 1080 pixels). It is available on digital television.
For some OLED models, the best is available for today (3840 × 2160 pixels); 8k (7680 × 4320 pixels) - Ultra HD.
It is worth noting that the future for HDTV. But at present, only some TV channels are broadcast in this format. Cable operators and satellite service providers are constantly expanding the list of channels transmitted in high resolution.
TV TOSHIBA 4K TV
If we talk about innovative formats4K (8k), then the owners of equipment with their support for a long time will have to browse the video content of such permission only through the Blu-ray player. But this screen is perfect for video games. A small distance to the panel will not affect the quality of the image, and the high speed of frames and the excellent picture will allow the gamers to get the maximum pleasure from the game.
Functionality of devices
Modern models can be divided into four groups with the ability to:
- universal models;
- without additional functions.
Equipment with the supportSmart.-Technologies have. Thanks to this, from the TV screen using a remote control or wireless keyboard, you can easily enter social networks, use the built-in browser and supported by Web services.
With SMART technology support
3 D. Models They may differ among themselves technology: active and passive. In the first case, the transmission of the picture is made alternately, for each eye (this is available for points with the power source). Thanks to this, the viewer sees the image in that resolution in which it is transmitted, with a minimum level of distortion. With a passive 3D picture is transmitted at different angles immediately on both eyes of the viewer. Such a technology, as well as accessories for its use is much cheaper. But the image quality and permission is inferior to active 3D.
In universal models, those and other technologies are also available.
Examined several classifications of televisions, it can be concluded that the most popular today are Led.- Models. It is available to the high resolution of the video content transmission, which is now actively developing, and the necessary functions are relevant to modern devices. Such devices are rich in not only a wide model side, but also the price category. The technology of plasma TVs, in view of dear production, gradually subsides. They come with OLED, which contain all the latest achievements of developers and manufacturers of television equipment.
How to choose a kinescope TV? ">
1. Screen size.
The first thing you need to decide, choosing a TV is what screens size is optimal for your room. Neither right away to focus on a large diagonal, as in a small room to watch it will be quite uncomfortable. The size of the TV diagonal is indicated in inches, less often in centimeters (domestic television models). In the title of the TV model, there is a link to the size of it diagonally (for example: Sony KV-29CL10K TV - Diagonal 29 "). TVs exist standard screens sizes. The most common: 14 "(37cm), 20" (51 cm), 21 "(54 cm), 25" (63 cm), 29 "(72 cm), 32" (81cm), 34 "(87 cm), 36 "(92 cm). With an increase in the TV diagonal, its overall dimensions increases. The depth of TVs with a small diagonal is usually no less than their diagonal (14 "- 27 cm), and for TVs of medium and large diagonals, the depth is 47-60 cm. The optimal distance from your place from which you are watching TV shows to the screen when viewing TV format 4: 3 (standard image format) is 3 - 5 diagonals of the screen. At the same time, the distance to 3 diagonals is permissible for 4: 3 format TVs with a 100 Hz scan and additional processing systems, an image that greatly reduces the flickering of the screen and, accordingly, minimizes the eye voltage. For broad televisions 16: 9 The recommended viewing distance is 2.5-3 screen diagonals. If you are going to put a TV in a niche, it must be borne in mind that between the walls of the niche and the TV body must remain a distance providing free air circulation.
TVs 14 "-15". Very numerous family of televisions. According to the image quality and functionality, it is very similar to each other, however, more well-known firms tend to complete their TVs with a better elemental base and kinescopes. Therefore, when choosing, first of all, you should pay attention to the design, flat or convex kinescope, the presence of one or two speakers and teletext. Manufacturers can complete their room antenna, however, the quality of reception is extremely low for such an antenna.
TVs 20 "-21". The most numerous group of TVs. Almost every manufacturer's company has a wide selection of models of TVs of this diagonal, both with a regular convex and flat-screen. Functionally TVs of this diagonal are not widely different. If you choose, attention should be paid to the design, the presence of a teletext, the number of speakers. Some models of televisions have stereo sounds, balance adjustment. Most manufacturers consider 20 "-21" televisions and large diagonals as stationary and does not complete their own antenna, assuming that cable will be used.
TVs 25 ". In our country are not in great demand. These TVs differ greatly in their functionality, by the presence or absence of stereo sound, as well as the design. The price of these TVs is significantly higher than televisions with a diagonal 21. " In addition, in the model range of TVs, this diagonal there are models with a scan of 100 Hz (relevant for the CRT TV). Their cost is often higher than in 29 inches models with a scan of 50 Hz. Although these TVs have a high-quality stable image, good functionality and stereo sound, they usually lack digital processors to improve the image quality, which does not give them to really compete with 29 inch quality pictures.
Televisions 29 "and above. These TVs have a huge variation in their functionality and specifications, many are equipped with digital image processors and a scan of 100 Hz, as well as additional speakers to enhance bass (which still does not make their audio system full-fledged DVD viewer). In addition, it is important when choosing a large diagonal TV is its appearance. Some firms are equipped with your beds to the beds (or supplied additionally).
2. Technology.
Technology 100 Hz.
What is better than 50 or 100 Hz scan?
The picture on the current standard of television is transmitted to 2 reception: two semi-cases, through the string - first all odd lines, and in the second stage - all even. This is called interlaced scan. Hospiters are transmitted with a frequency of 50 Hz.
The main disadvantages: the effect of "flicker" (the human eye notices such a flicker frequency) when the image is output to the screen, in addition, the horizontal lines "tremble" with a frequency of 25 Hz. This is especially noticeable in a white background and on the big screen.
Technology 100 Hz. - This is a digital technology that provides a screen update 2 times more often than at 50 Hz-oh technology, i.e. "Grascadres" appear 2 times more often. The video signal presented in digital form provides much more processing capabilities than analog. For example, you can remember the image frame presented in digital form and reproduce it at the right time. This technology allows you to solve the challenge the image on the screen. The fact is that with the frequency of the shift of the half-sized (fields) 50 (60) of Hz, the flickering of the image, especially in bright areas, still remains noticeable.
Yet this system is also not devoid of shortcomings: when alternating half-frames, the first one - the second - the second, the transition from odd to even rows is happening with the same frequency of 50 Hz. It is manifested in the trembling of the upper and lower edges of the image parts due to alternation of even and odd lines.
To overcome this disadvantage allows an improved system that called Digital Scan, in which the semi-shifters alternate in the first one - the second one - the second one. In this case, the frequency of the change of half-frames with even and odd lines is already 100 Hz, and the jitter becomes almost inconspicuous.
In addition, technology 100 Hz has several minuses, among which the digitization of the image and the digital loop with the rapid movement of objects. For better transmission of rapidly changing images in TVs with a 100 Hz scanning, special digital signal processing technologies are used, such as Digital Scan with Natural Motion (Philips), Digital Plus (Sony), Digital Mastering and Intelligent Mastering (Thomson), Digital Scan and Super Digital Scan (Panasonic), Full Digital with DMI (Digital Motion Interpolation) (Loewe) and others. In these systems, an intermediate frame is created on a special algorithm, which is inserted between those frames from which it is formed. As a result, quickly moving objects on the screen look more natural.
3. Image format.
Today there are two TV screen formats: traditional, usual, 4: 3 and widescreen image format 16: 9.
Choosing a TV format, you must decide that by the benefit you will watch: If you are basically on TV TV, see MPEG4 movies (DivX) or VCR, it is worth buying a TV 4: 3, because Its format coincides with the format of television broadcasting. However, when viewing the image, a 16: 9 format (for example, DVDs) from above and from the bottom of the TV screen will remain black bands (which, most often, can be removed "cutting" edges of the image).
If you are a DVD amateur and want to leisure your favorite movies, then you will directly make a direct sense to buy a TV format 16: 9. Since most DVDs in the modern market contain the image in 16: 9 format. However, we note that television in Ukraine does not use a wide format. When viewing on the TV format 16: 9 ordinary television programs along the edges of the screen, unused, black sections will remain, i.e. The "acting" image diagonal will decrease. On the other hand, in such TVs, it usually provides an increase in the size of the image into full screen, while the upper and lower part of the image is lost, which are usually not very informative for television programs. In many widescreen TVs, the "smart" increase in the image is also used when the image fills the entire screen, distorting nonlinearly - the central part remains almost unchanged (and it is the most informative), and the screen periphery is distorted (the upper and lower part can shrink a little, And the side parts are stretched). At first it looks strange, then you get used to it.
By the way, the widescreen image may be not only 16: 9, there is a completely cinematic format 2.35: 1. When viewing DVDs with a margin "2.35: 1", even on screens 16: 9, black strips remain on top and bottom.
16: 9 Format TVs provide especially great opportunities for creating a home theater. The viewing angle increases significantly, the perfection of the image in combination with the corresponding audio design allows you to feel the complete involvement of events on the screen. Note that the source of the widescreen image may be not only a DVD player: there are satellites that provide broadcasting in a wide format and even with the multichannel sound of Dolby Digital.
4. Sound of the TV and its power.
When choosing a TV, you should define a TV with what sound you want to have. There are two types of TVs: with mono and stereo sound. In this case, the TV can play stereo or only from an external source or from ether (A2, NICAM) and from an external source. In addition, mono TVs are with one and two speakers. Mono TVs with two speakers, as if imitate the stereo sound, but do not share it into two channels, like stereo. It should be remembered that the domestic television is mainly working in mono and effect from stereo sound in the TV in this case will not be. Televisions with stereo sound are usually equipped with a large number of additional sound settings.
A number of TVs have built-in Dolby Pro Logic and / or Dolby Digital surround audio decoders. Additional speakers can be included with the TV, when connecting which it is possible to implement the 6-channel Dolby Digital sound and, by purchasing an additional DVD player, create a home theater. Currently, there are even some satellite channels that broadcast with 6-channel sound Dolby Digital. However, in most cases, a multichannel sound source is a DVD player. Many TVs are equipped with Dolby Pro Logic decoders by the Virtual Dolby system, which allows imitating sound sound with a conventional stereo system.
The power of the speakers is an important indicator of the sound quality of the TV, it is measured in watts, the greater the power indicator, the better the sound you can get.
However, no matter how good there was no sound of TVs, it will still give way to the quality of the sound system of the home theater.
5. Additional features.
Quite often the situation occurs when interesting programs are at the same time, or, for example, browsing a film on one channel, you are afraid to peck the start of news or an interesting match on another. At such moments, I want the TV screen to divide into several parts, in which various channels would be displayed. Digital technologies allow you to do it.
Television equipment designers have developed a technology called Picture in Picture ("picture in the picture"), or abbreviated PIP. This technology allows you to show on the screen, on the background of the main channel, in a small rectangular window, any other, optional, channel, or the image obtained from the external source of the video signal (VCR, video cameras, etc.). Sound accompaniment can be chosen as the main and optional, programs. It is usually provided for a change in the size of an additional picture and location of it on the screen. It is also possible to exchange images between the main screen and the optional window by pressing one button on the remote control.
The simplest single-bond PIP (passive PIP) can be equipped even inexpensive models of televisions. In this case, one tuner of the TV is used, so in the additional window you can display only the program coming to the TV through a low-frequency input, for example, from a VCR, camcorder or DVD. If you view on the main screen, the recording played from the VCR, in a small window, you can monitor one of the essential programs.
The possibilities of the simplest PIP system can be expanded if you connect a VCR (or a TV tuner-writer) to a low-frequency input. In this case, you can additionally remove the essential programs entering the VCR tuner. In case of connecting to a satellite tuner TV, you can view satellite programs using PIP in the additional window.
More expensive models of televisions may have in their composition a PIP block equipped with its own (second) tuner (active PIP). In this case, in an additional window, or windows, you can view any programs that come to the TV. Many of the TVs with two tuners allow you to simultaneously display 3 - 9, and in widescreen TVs, even 16 windows, with various programs (Multi Pip systems, Multi Window EX and others). In widescreen TVs, with a 16: 9 screen format, ROR mode can be implemented (Picture Out of Picture - "picture outside the picture"). In this mode, three additional images are inscribed in the free part of the wide screen on the side of the main picture of the 4: 3 format, together with it completely filling the area of \u200b\u200bthe TV screen. Pap (picture and picture) The screen is divided into two parts, in each of which there is a slightly compressed active image.
PAT (picture and text) The screen is divided into two parts: a slightly compressed active image and a full text page.
6. Speakers for connecting external devices
. If you want to watch the video on the TV with external devices, there are many questions at once. It is very important when choosing a TV in advance to keep in mind all the devices that you want to connect not only now, but also in the future, and make sure that your TV is equipped with a sufficient number of necessary connectors. Otherwise, you will have to regret incorrectly made.
However, TVs have many different connectors, and not everyone may understand them. Before the user of the TV equipped with all imaginable connectors, another problem will rise - to choose from many options for connecting through these connectors the most correct and best.
The most common (but it is impossible to say that the best) standard when connecting additional devices to the TV is a composite signal (RCA, CINCH, "Tulip"). It is a combination of all components containing video information, in one signal. It is a composite signal that is obtained at the exit of the television tuner (i.e., the receiver of the essential television signal). Composite video outputs are equipped with video recorders, camcorders, DVD players, etc. Actually, it is difficult to find a device that does not have these outputs. The advantages of the composite method are understandable - the alignment of signals allows to obtain the most capacious and user-friendly signal for which only one wire is required. However, when converting the initial RGB or component signal into a composite part of the information is lost, and upon subsequent reverse conversion, it is no longer possible to restore the information on the composite signal to RGB. As a result, the resulting image is somewhat worse in quality (although it is not felt for small diagonals). On the other hand, if you are not going to connect a component signal source device to the TV (DVD player, etc.) or your TV is not equipped with a kinescope above 21 ", this circumstance should not worry, and composite connectors will be enough. The composite connector is made in the form of RCA, and is usually adjacent to the audio connector (one, if mono, and two, if it is a stereo TV). Traditionally, they are indicated together - RCA audio / video. The TV can be equipped with an RCA audio / video and RCA audio / video output.
The color image is formed from the main color signals R G B, that is, the signals of red R, green G and blue B color, based on the color of the color and brightness of each image point. If you are going to connect an external device to TV, which has a RGB output signal, will correctly use RGB-input on the TV, is a convenient path that provides high-quality signal transmission. TVs RGB input is usually implemented via the SCART connector. The high quality connection of the RGB-input devices is quite comparable to another connection option - via a component input that can be equipped with TVs.
Component signals are called a combination of the brightness signal ("Y" component) and colorless signals showing the amount of color (blue component "PB" and a red component "PR"). Various digital sources of programs can be connected to a component input and RGB to the TV: DVD player, digital satellite tuner, computer, digital television decoders, game console, etc. Connecting the component input is optimal for the DVD player, since all information on DVD disks is contained in the component format, and the DVD player is a source of component signal. Component connectors can be performed by "tulips" (RCA), or by bayonets (BNC), usually present the corresponding designations Y Pb PR.
Another standard of connecting to TV is S-Video (Separate Video, i.e., "separate video"). The S-Video Connection Standard was designed when video players appeared on the market, the quality of the essential signal is the quality, so that their advantages can be seen before the TV shows on the TV screen. This is mainly about VCR and S-VHS, Hi8 video cameras and video cameras, in which separate brightness and chroma channels are used to record-play, this output may also be contained on computer video cards.
Very interesting SCART universal connector, which can enable you to connect signals at once: composite, RGB and stereo sound, and the connection is bidirectional. In addition, a control line is provided between connected devices. In the later versions of SCART, there is a connection and S-Video, and a component signal, while limited to the transmission functions of the composite signal and RGB, the number of contacts in the SCART connector is limited. For connections via S-Video and on the component, 2 more additional SCART connections must be installed on the TV.
Connecting cables that use the SCART connector may not be completely dispersed, - always check with the seller, it will suit you, or not, a specific cable.
The TV can also be equipped with separate audio RCA connectors. For example, the output of the RCA-audio (R and L) of the TV allows you to connect to it a stereo system equipped with appropriate inputs, and reproduce the sound of the TV through the stereo system, which significantly exceeds the sound power of the TV itself.
Some TVs are equipped with special VGA connectors, or D-Sub connectors, allow you to connect a computer to them and use them as monitors. However, it should be borne in mind that the TVs are not intended for continuous many hours of work, as monitors, and cannot replace them in this regard. Connecting a TV to a computer can be used, for example, for computer games and the like.
Please note that even if you have connected all cables correctly, you may need to still need to use the connected devices to work the connected devices, the procedure of which in this case will be described in the instruction manual.
When choosing a TV, pay attention not only to the number of connectors (Recall, there must be no less than the devices that you want to connect), but also on the location of the connectors.
Connectors on the back of the TV are intended for stationary connection of technology. It is desirable to have as much as the devices will be constantly connected to the TV (plus one to possibly expand the system). Connectors on the front (frontal) or side of the TV are intended for episodic and, as a rule, short-term connection of equipment (video cameras and game consoles). To consider them as an option for a stationary connection is not worth it, as this is, in most cases, inconvenient and not very aesthetic.
We recommend when selecting techniques to try to ensure that the connecting connectors were one type (for example, SCART and on the TV, and on DVD, and on a VCR), it will significantly simplify switching and relieve problems associated with searching for specific cables, adapters, etc. .
7. Pros and cons of kinescopic televisions.
Advantages:
1. Low cost,
2. Exhaust to technology limit, circuitry,
3. A huge variety of models of CRT TVs,
4. High quality image,
5. The most natural color rendition,
6. Large service life (up to 15 years).
Disadvantages:
1. The size of the TV screen is technologically limited (about 38 "),
2. Large dimensions and high weight of the device,
3. Problems - rays information,
- geometric distortion,
- Focus.
4. The essential influence of magnetic fields on image quality and human health.
8. The most advanced manufacturers.
Philips, LG, Panasonik, Sony, Samsung
source of information www.pavleek.3dn.ru.
