Comparison Samsung QE-55Q77C 55 " vs LG 50NANO86 2021 50 "

The optimal size of the TV depends primarily on the distance from which it is planned to watch. If the diagonal on the screen is too small, it will be difficult to see the details, you will have to strain; if too large, the image will be much larger than the field of view, which is also undesirable. The best option is the situation when the distance to the TV corresponds to 3 - 4 of its diagonals: for example, for a size of 32 "(80 cm), the recommended distance is about 2.5 - 3 m.

The size of the diagonal of the screen affects both the cost of the TV and its general equipment. So, among models smaller than 32" there are often TVs without Smart TV and other advanced features; TVs for 32 - 55" can be both quite simple and advanced; and a large screen, more than 55", in most cases is combined with extensive additional functionality.

Now the following popular diagonals are on the market: 32 ", 39 - 40", 43", 49", 49 - 50", 55", 65", 75" and more than 80".

— Sony X1. The Sony X1 processor is used in Sony TVs from several series: XH and XG. Such TVs occupy several niches at once: the low-cost category and the middle class. The most affordable models display a 4K resolution picture without support for high dynamic range (HDR), more advanced models use 4K HDR. Basically, these are simple models that are designed only for watching videos. For dynamic games, TVs with such a processor are less suitable.

— Sony X1 Extreme. The Sony X1 Extreme processor is 40% more powerful than its predecessor, the Sony X1, and is designed to work with 4K HDR images. Working with HDR dynamic range makes it possible to display a realistic picture of increased quality on the screen. TVs with the Sony X1 Extreme processor are mid-range and high-end models. The image qualit is improved by supporting dynamic backlighting. An important feature of the Sony X1 Extreme is the use of two independent colour rendering databases (Dual database processing). Object-based HDR remaster technology analyzes the image displayed on the screen, matches colours with a database and adjusts them for viewing on a particular TV. Thanks to Super Bit Mapping 4K HDR, colour transitions become smoother and more natural, making the picture even more realistic.

— Sony X1 Ultimate. The Sony X1 Ultimate processor can handle both 4K (3840 x 2160) and 8K HDR (...7680 x 4320) images, depending on the screen size. TVs with such a processor provide a picture with the deepest detail and the highest quality rendering of textures. TVs with the Sony X1 Ultimate processor are mostly advanced models from the middle and expensive segment. Such TVs provide the effect of complete immersion in the atmosphere of the video being watched. Sony X1 Ultimate supports X-Reality PRO technology with an exclusive database of colour reproduction samples. Even when displaying low-resolution images on a TV screen, the picture quality is automatically upscaled to 8K (4K) with HDR High Dynamic Range. There is support for X-tended Dynamic Range PRO technology, which distributes the backlight in accordance with the displayed scenes. Dynamic backlighting improves contrast and makes the picture as bright as possible, while blacks are more saturated than ever.

— Sony Cognitive XR. TVs with Sony XR processor are capable of displaying a picture in 4K resolution at 120 Hz and 8K at 60 Hz. These are high-tech models operating under the control of advanced artificial intelligence. The Sony XR is one of the world's first "cognitive" processors. He processes the video and audio components of broadcasts to improve the quality of the image and sound, which creates a realistic picture of what is happening on the screen. The software algorithms of the processor process information about audio and video in a single stream. The manufacturer claims that the processor works akin to the human brain and goes beyond the capabilities of ordinary artificial intelligence algorithms.

— LG. The hierarchy of television image processors from LG includes several large Alpha families: α 5, α 7, α 8, α 9 and α 11. Each of them is described in more detail in the corresponding help paragraphs:

— LG α 5. Alpha 5 processors are used in the brand’s inexpensive TV panels and perform minimal image processing. They cover a basic range of tasks such as improving colour reproduction, upscaling video to 4K and creating surround virtual sound.

— LG α 7. Processors from the Alpha 7 line are found on board mid-range LG TVs with NanoCell and OLED matrices. Their advanced functionality includes automatic adjustment of image and sound parameters in accordance with the broadcast genre, as well as automatic adjustment of brightness and tones to suit the conditions of the surrounding space.

— LG α 8. The Alpha 8 family is the true “golden mean” from LG. The debut of α 8 took place in 2024, and such processors are installed in the brand’s TVs with NanoCell and OLED panels. They are equipped with improved noise reduction and sharpening algorithms, support for Dolby Vision and other premium HDR formats (in most models), and advanced artificial intelligence functions for increasing image and sound quality in real time.

— LG α 9. LG's flagship TVs are equipped with α 9 rank processors - in fact, they rely on deep machine learning algorithms to analyze the genre of broadcast video content and adapt image and sound parameters to it. Alpha 9 processors work with all applicable specifications of high dynamic range technology in LG TVs and have a professional sound identification system.

— LG α 11. Alpha 11 processors will be installed in top models of LG OLED TVs starting in 2024. They are capable of working with frame formats up to 8K, while providing improved image scaling algorithms. The emphasis in the line of processors is on the highest computing power and developed functionality of AI algorithms for the finest adaptation of picture and sound.

Note that with each subsequent edition, LG image processors increase functionality. Their generations are designated by the prefix Gen with the serial number of the generation.

— Samsung Crystal 4K. The Samsung Crystal 4K processor is used primarily in Samsung's Crystal UHD series TVs. This category of TVs has an affordable price. These are simple models, the screen of which produces a picture in Ultra 4K resolution. The performance of the Samsung Crystal 4K processor is enough to bring the colour quality to the level of HDR. Of the technologies used, we can note the Contrast Enhancer and Dynamic Crystal Color, thanks to which the contrast and brightness of the image are fine-tuned.

— Samsung Quantum 4K. The Samsung Quantum 4K processor is used in Samsung TVs with QLED backlighting. High performance makes it possible to scale the image of Full HD to the level of 4K, and in the high dynamic range of HDR. The Samsung Quantum 4K processor features unique Quantum HDR technology, which makes the image more detailed, richer and more expressive. The processor supports Dual LED dynamic backlight technology, with which the picture acquires extreme contrast and at the same time high brightness. Also, the TVs have a special game mode Real Game Enhancer+ with support for AMD FreeSync technology.

— Samsung Quantum 8K. The Samsung Quantum 8K processor has been used in Samsung QLED TVs since 2020. Models in this series are capable of reproducing 8K HDR images, and a picture of such high quality can be obtained even from a source with a resolution of 4K to Full HD. Usually, these are top-level models. TVs of this class can be used as part of a professional home theater. Deep detailing of the picture guarantees complete immersion in the video content. Artificial intelligence QLED TV is responsible for image processing.

— Samsung NQ4 AI. Intelligent processor that provides high quality images and sound using artificial intelligence technologies. Used in mid-range Samsung TVs with OLED and Neo QLED matrices, it provides work with frame formats up to 4K (including image scaling from lower resolutions in real time). The processor supports flexible Quantum Matrix backlight control, and thanks to the AI ​​Customization function, the TV can independently determine the genre of video content, adjusting the brightness and contrast settings to achieve the effect of complete immersion in what is happening on the screen.

— Samsung NQ8 AI. Top-level processor found in flagship 8K Samsung Neo QLED TVs. Relying on machine learning algorithms and a built-in NPU neural engine, the processor guarantees a great video viewing experience regardless of the input source. Samsung NQ8 AI supports real-time upscaling to 8K, ensures smooth and clear depiction of fast movements in the frame thanks to AI Motion Enhancer Pro, and Real Depth Enhancer Pro allows viewers to immerse themselves in the action on the screen. In parallel, the processor is tasked with processing multi-channel audio, optimizing images in games and for each scene, depending on the user’s preferences.

Note that Samsung NQ4 AI and NQ8 AI processors were released in several generations, designated by the Gen prefix with a serial version number. The newer the edition, the more advanced the processor is.

– Philips P5 Perfect Picture. The Philips P5 Perfect Picture Processor is used in Philips OLED TVs. The processing power of the processor is enough to reproduce the 4K image. In older models, an extended dynamic range of HDR colours is found. TVs with the Philips P5 Perfect Picture processor cover several cost categories at once, the low-cost segment and the average price range. A high-quality picture is displayed on the screen of such models, but, usually, it falls short of the reference Ultra 4K HDR, since this requires a more professional matrix. The P5 Perfect Picture processor is the first Philips CPU to use artificial intelligence. Philips P5 Perfect Picture supports technologies such as Dolby Vision, HDR10+, Perfect Natural Motion and Micro Dimming Pro.

– Philips P5 Pro Perfect Picture. The Philips P5 Pro Perfect Picture Processor is used in Philips TVs with enhanced OLED. Models with this processor are capable of displaying an image in Ultra 4K HDR resolution. Usually, it is found in advanced class TVs. Philips P5 Pro Perfect Picture processor TVs use a machine intelligence neural network interface. Google Assistant and Amazon Alexa voice assistants are supported. The processor uses the following image and sound technologies: Dolby Vision, Dolby Atmos, HDR10+, Micro Dimming Perfect and Wide Color Gamut.

The type of matrix used in the TV. Among them, OLED, QLED, QD-OLED and NanoCell deserve the most attention, which are found in TVs of the relevant price category. Now more about each of them and other more classic options:

— OLED. TVs with screens that use organic light-emitting diodes — OLED. Such LEDs can be used both to illuminate a traditional LCD matrix, and as elements from which a screen is built. In the first case, the advantages of OLED over traditional LED are compactness, extremely low power consumption, backlight uniformity, as well as excellent brightness and contrast ratios. And in matrices, consisting entirely of OLED, these advantages are even more pronounced. The main disadvantages of OLED TVs are the high price (which, however, is constantly decreasing as the technology develops and improves), as well as the susceptibility of organic pixels to burn-in during long-term broadcast of static images or pictures with static elements (TV channel logo, information panel, etc.).

— QLED. TVs with screens using "quantum dot" technology — QLED. Such screens differ from conventional LED matrices in the design of the backlight: multilayer colour filters in such a backlight are replaced with a thin-film light-transmitting coating based on nanoparticles, and traditional white LEDs are replaced with blue ones. This a...llows to achieve a significant increase in brightness and colour saturation at the same time as improving the quality of colour reproduction, besides, it reduces the thickness and reduces the power consumption of the screen. The disadvantage of QLED matrices is traditional — the high price.

— QD-OLED. A kind of hybrid version of matrices that combine “quantum dots” (Quantum Dot) and organic light-emitting diodes (OLED) in one bottle. The QD-OLED modification was introduced by Samsung at the end of 2021 in response to advanced OLED panels from LG. The technology takes the best from QLED and OLED: it is based on blue LEDs, self-luminous pixels (instead of external backlighting) and “quantum dots”, which play the role of colour filters, but at the same time practically do not attenuate the light (unlike traditional filters) . Thanks to the use of a number of advanced solutions, the creators managed to achieve very impressive characteristics, significantly superior to many other OLED matrices. Among them are high peak brightness from 1000 nits (cd/m²), excellent contrast and black depth, as well as colour coverage of over 90% according to the BT.2020 standard and more than 120% according to DCI-P3. Such matrices are found mainly in flagship TV panels.

— IPS. A type of matrix originally designed for high quality colour rendering. Indeed, IPS screens produce bright and rich colours, have a good colour gamut, and demonstrate wide viewing angles. The initial disadvantage of this technology was the low response time, but in modern modifications of IPS this point has been practically eliminated. Matrices of this type are very popular in the advanced budget and mid-price segment of TV panels.

— *VA. In this case, we mean one of the varieties of VA (Vertical Alignment) type matrices - MVA, PVA, Super PVA, etc. Specific varieties may vary slightly in properties, but they all have common features. In fact, *VA matrices are a more affordable alternative to IPS panels: they are relatively inexpensive, provide fairly good colour reproduction and viewing angles of up to 178°. The main disadvantage of such screens is the long response time, but in modern models this has been practically eliminated thanks to the constant improvement of technology. *VA matrices are used in TVs that are positioned as functional and at the same time affordable models.

— PLS. In fact, it is one of the varieties of the IPS matrices described above, developed by Samsung. According to the manufacturer, in such matrices it was possible to achieve higher brightness and contrast than in traditional IPS, as well as to slightly reduce the cost.

— NanoCell. Matrix based on quantum dots. This type of matrix is used in LG TVs and was first introduced in 2017. NanoCell matrices use the structure of classic LCD displays. But unlike the latter, they use so-called quantum dots instead of the classic general backlight, which provide monochromatic light. NanoCell technology reduces power consumption while increasing colour gamut and viewing angle. It is worth noting separately that NanoCell matrices are not the only ones using quantum dot technology. Similar solutions are offered by: Samsung (QLED matrix), Sony (Triluminos matrix), Hisense (ULED).

— Edge LED — side backlight of the matrix. In this case, the LEDs are distributed around the perimeter of the screen. To evenly distribute the backlight, the background of the matrix has a special reflector. An important advantage of TVs with Edge LED backlighting is the minimum thickness of the device. Among the shortcomings, one can note the presence of glare at the edges, which appear under certain conditions. Glare may be visible in scenes where dark hues predominate.

— Direct LED — rear matrix backlight. In this case, the LEDs are evenly distributed over the entire screen area. The Direct LED backlight makes the image contrast and bright at the same time. TVs with this technology have good colour reproduction. Among the shortcomings can be noted increased power consumption and increased dimensions. Additionally, such TVs have a large delay (Input lag), which is why Direct LED backlit screens are poorly suited for dynamic games.

— FALD (Full-Array Local Dimming) is a backlight technology widely used in LG TVs. A close analogue of FALD is the Direct LED backlight. The LEDs are also evenly spaced across the entire surface of the matrix, but FALD technology provides a bright, colour-rich image with high contrast. Another distinctive feature of FALD is the ability to reproduce natural blacks. When black is displayed on the screen, the LEDs are turn...ed off in groups, by sector, which allows to make black extremely saturated. Of course, the abundance of LEDs on the matrix makes the TV more massive, and at the same time heavy. The appetite for electricity in such models is above average.

— Mini LED. Screen backlight system on a substrate of reduced LEDs (hence the Mini prefix). On the same plane of the TV panel, the number of LEDs has increased several times, if we draw parallels with traditional LED systems. As a result, the canvas with Mini LED backlight has many times more local dimming zones of the picture (Local Dimming), which is necessary for the correct operation of the extended dynamic range image technology. For playing HDR content, Mini LED systems are much better than ordinary LCDs.

— Dual LED. Proprietary backlight system used in Samsung TVs. The technology involves illuminating the image on the screen with two types of LEDs: one emits light in a cold spectrum, the other in a warm one. The Dual LED enhances colour reproduction and enhances detail contrast by adapting the colour tone of the picture according to the content on the screen.

TV support for high dynamic range technology — HDR.

This technology is designed to expand the range of brightness reproduced by the TV; Simply put, an HDR model will display brighter whites and darker blacks than a regular TV. In fact, this means a significant improvement in colour quality. On the one hand, HDR provides a very "live" image, close to what the human eye sees, with an abundance of shades and tones that a normal screen cannot convey; on the other hand, this technology allows to achieve very bright and rich colours.

However for the full use of this feature, you need not only an HDR TV, but also content (movies, TV broadcasts, etc.) that was originally created for HDR. Also note that there are several different HDR technologies that are not compatible with each other. Therefore, when buying a TV with this feature, it is highly advisable to clarify which version of HDR it supports (HDR10, HDR10 + or Dolby Vision). And the following are found:

— HDR10. Historically the first of the consumer HDR formats, less advanced than the options described below but extremely widespread. In particular, HDR10 is supported by almost all streaming services that provide HDR content, and it is also common for Blu-ray discs. Allows to work with a colour depth of 10 bits (hence the name). At the same time, devices of this format are also compatible wi...th content in HDR10+, although its quality will be limited by the capabilities of the original HDR10.

— HDR10+. An improved version of HDR10. With the same colour depth (10 bits), it uses the so-called dynamic metadata, which allows transmitting information about the colour depth not only for groups of several frames, but also for individual frames. This results in an additional improvement in colour reproduction.

– Dolby Vision. An advanced standard used particularly in professional cinematography. Allows to achieve a colour depth of 12 bits, uses the dynamic metadata described above, and also makes it possible to transmit two image options at once in one video stream — HDR and standard (SDR). At the same time, Dolby Vision is based on the same technology as HDR10, so in modern video technology this format is usually combined with HDR10 or HDR10+.

TV support for one or another brightness / contrast enhancement technology.

Usually, in this case, software image processing is implied, in such a way as to improve brightness and/or contrast (if necessary). Specific processing methods may be different — in particular, in some cases we are actually talking about turning standard content into HDR (see above), and some manufacturers do not specify technical details at all. The effectiveness of different technologies can also be different, and besides, it is highly dependent on the specific content: in some cases, the improvement will be obvious, in others it may be almost imperceptible. Also note that this feature is not always useful, so in most models it is turned off.

TV compatibility with special frame synchronization technologies used in AMD graphics cards.

You should pay attention to this parameter if you plan to use the TV as a gaming monitor for a PC or laptop with an AMD graphics adapter. Special timing technologies are used to match the screen refresh rate to the frame rate of the incoming video signal. Such a need arises for the reason that the frame rate issued by the graphics card can “float” when the load on the video adapter changes (this is especially true for demanding games); and if this frequency does not match the screen refresh rate – tears and other unwanted artifacts appear on the image.

The AMD technology used to eliminate this effect is called FreeSync. Nowadays, it is presented on the market in three versions — the original FreeSync and two extended ones:

– AMD FreeSync Premium Pro. The most advanced and functional version, formerly known as AMD FreeSync 2 HDR. In addition to refresh rate sync, it also includes support for HDR (see above), output at a frame rate of at least 120 Hz at Full HD resolution, as well as low frame rate compensation (LFC). The essence of LFC is that when the frame rate of the original video signal falls below the minimum frequency supported by the screen, the same frame is displayed on the screen several times, which allows to maintain the maximum smoothness of the “picture”.

— AMD FreeSync Premium. A somewhat s...implified version compared to FreeSync Premium Pro. It does not provide working with HDR, otherwise it is completely similar.

A decoder can be broadly described as a standard in which digital audio (often multi-channel) is recorded. For normal playback of such sound, it is necessary that the corresponding decoder is supported by the device. Dolby Digital and DTS were the first in multi-channel decoding, gradually improving and introducing new features. The final stage for 2020 is Dolby Atmos and DTS X decoders.

– Dolby Atmos. A decoder that uses not a rigid distribution of sound across channels, but the processing of audio objects, due to which it can be used with almost any number of channels on a reproducing system — the sound will be divided between channels so that each audio object is heard as close as possible to its proper place. When using Dolby Atmos, ceiling speakers (or speakers facing the ceiling) are highly desirable. However, in extreme cases, you can do without them.

— DTS X. An analogue of the Dolby Atmos described above, when the sound is distributed not through individual channels, but through audio objects. The digital signal contains information about where (according to the director's intention) the object audible to the user should be and how it should move, and the processor of the reproducing device processes this information and determines exactly how the sound should be distributed over the available channels in order to achieve the required localization. Thanks to this, DTS X is not tied to a specific number of audi...o channels — there can be as many as you like, the system will automatically divide the sound into them, achieving the desired sound. Also note that this decoder allows you to separately adjust the volume of dialogues.

Types of digital tuners (receivers) provided for in the design of the TV.

Such tuners are necessary for receiving digital TV broadcasts; for normal operation, the broadcast standard must match the type of tuner (with some exceptions, see below). Note that the receivers are also available as separate devices; however, it is easier (and often cheaper) to buy a TV with a built-in tuner of the desired format. In modern TV you can find terrestrial tuners DVB-T2, cable DVB-C and satellite DVB-S and DVB-S2, here are their main features:

— DVB-T2 (terrestrial). The main modern standard for digital broadcasting. Such broadcasting has a number of advantages over traditional analogue broadcasting: it allows higher resolution and multi-channel audio transmission, with better sound and picture quality, and this quality is fully preserved until the signal weakens to a critical level. However, in some countries digital terrestrial broadcasting is just being put into operation, so it will not hurt to check the availability of DVB-T2 coverage in your area.

— DVB-C (cable). The main modern standard for digital broadcasting in cable networks. Despite the advent of the more advanced DVB-C2, it still continues to be widely used, and most likely this situation will not change for a long time.

— DVB-S (satellite). The first...generation of the digital DVB standard for satellite broadcasting. Nowadays, it is relatively rare due to the advent of a more advanced DVB-S2, which is also backwards compatible with the original DVB-S.

— DVB-S2 (satellite). The most advanced and popular of today's digital satellite broadcasting standards. Being the heir to DVB-S, has retained compatibility with it; therefore, manufacturers often limit themselves to installing only a DVB-S2 tuner on their TVs — it allows you to receive both major satellite broadcast formats.