How it works
In order to touch the new technology, you first need to turn on HDR on the TV, and you can do this in the settings. However, it is necessary for the TV to be equipped with this function, as well as to have content of the appropriate quality that could be played. In order for the function to work and be able to prove itself, manufacturers seek the most effective backlighting. Its brightness can be adjusted in certain areas of the screen.
How does it look on the screen in order to be ready to feel the difference in advance? In scenes where there is bright sunlight, it begins to seem to shine even brighter than ever before in images. Even within one frame, several light sources of different intensity can be broadcast. When broadcasting dark scenes, the problem of halftone pixelation disappears. complex and multi-component paints become voluminous. In a word, the user can see the picture with his own eye, and not the way the equipment camera allows it to see.
What you can watch in HDR
Since 2015, most of the world’s popular film studios have been releasing their content in HDR in addition to the usual format. Users can only be glad that there are more realistic and high-contrast films every year. For those who enjoy this, it is worth paying attention to new items from services such as Ivi, Megogo. The same Netflix makes content in this quality and releases many new products every year.
You can see the hrd picture on Sony game consoles. Using a small special equipment, the gamer can see some of his favorite shooters in a radically new quality. In any case, this applies to new products from leading manufacturers of games for consoles. You can evaluate the image of the future in blu ray players. The details are worked out much better, and the picture itself seems much more realistic than we had to see it before.
However, on a TV usually contemplating this format will not work, as well as enjoying the main advantages of the new picture. In order to reproduce HDR, it must support at least 4K resolution, and there are also certain requirements for color depth, brightness margin, and some other criteria. Accordingly, the content in a new quality should also be matched with equipment that allows it to be broadcast and viewed.
What is HDR on TV
We should start with the term HDR itself. what is it about TV, and what benefits does it bring to the user? This criterion directly affects the quality of the picture that we can see in front of us from the screen. It is translated by the phrase “high dynamic range” and means increased contrast. That is, not only will the brightness be higher, but also the darkness will be blacker where it should be.
Better color reproduction is attractive to the user in that it is always more realistic. However, do not confuse this term with the same sounding in smartphones or cameras. There, the same name means combining several images in order to achieve the most successful variant in terms of the ratio of light and shadow. However, in the case of video, the situation will be different.
HDR technology in TVs has brought with it new standards in terms of color gamut. The abundance of shades that appeared could not be conveyed on previously produced devices. The most intense colors from the display are now even closer to reality than before.
HDR on TV. what it is and how to set it up
In recent years, TVs equipped with High Dynamic Range technology (or simply abbreviated as HDR) have ceased to be a gimmick and are conquering an ever larger segment of the market. However, many of our compatriots are not too aware of their benefits. So is it worth choosing a technique with this technology and what does it give?
Now the presence of this mode is written by the manufacturers of all new television sets, regardless of whether they display 8 or 10 bits. However, it is not enough just to display HDR content at 8-bit, unnaturally increasing the contrast of individual colors. Most budget blue screens use 8-bit technology that artificially expands the possibilities of colors using special algorithms.
Therefore, at this time, it is customary to distinguish 2 main standards that differ in the initial effect. One of them is called HDR10, while the other is called Dolby Vision. The first is distributed openly and supports 10 bits, but differs in less color reproduction. Another standard is more difficult to implement, although it even expands to 12 bits and retains color tints better.
The first, accordingly, is much more widespread and there is plenty of content for it. Today it is basic even for streaming services. The most famous game consoles Xbox and Playstation also support it. Dolby Vision does not yet have the ability to count on such broad support, although NetFlix already has content for both formats. But many equipment manufacturers and film studios are not planning to switch to working with it yet. Although premium TVs come with this particular kind of HDR.
How to find out if your TV supports HDR technology
If we figured out about the features of the technology, then it is logical to find out if HDR support is provided on the TV. To obtain this information, you can use one of the following methods:
- look at the instructions for the equipment;
- view information about the functionality on the official website of the manufacturer;
- talk to the consultants of the outlet where the TV of this model was purchased;
- study in a different way the technical characteristics of the equipment.
Usually, to denote this technology on Samsung equipment, they use the abbreviation HDR or write High Dynamic Range. To start watching the picture in a different quality, you just need to download the content and turn on its viewing. The show starts automatically and does not require any additional actions.
And what should the user do if his Sony has to support this format, but the image is clearly of the wrong quality? To do this, you need to go to the settings. There, in the parameters of the picture, you can find out if this option is enabled. It may be in a specific TV model, but it is simply not activated. If necessary, you can reboot your TV receiver.
How to know if your TV is HDR capable
This can be done as follows:
Depending on the manufacturer, different designations may be used: HDR Premium, High Dynamic Range, UHD Color, etc. To watch HDR video, it is enough to turn on the appropriate content on the TV screen. The show should start in auto mode, without any additional actions from the user.
How can you enable HDR on a TV from Samsung, LG or other brands, if this has not happened, and the equipment exactly supports the specified mode? Go to the settings and see in the image parameters if the HDR format is active. If necessary, click “on” or “on”. Reboot device.
This video format is classified into two main types:
- HDR10. Provides 10 bit color depth. The whole video is being processed. Supported by all TV panels with this technology (for example, KD43XG7096BR), Blu-ray players, game consoles, services such as Netflix.
New: There is also HDR10, which differs in that the brightness can change during the video, and in HDR10 the parameters are set once, at the very beginning.
- Dolby Vision. capable of supporting 12-bit color range. Each scene undergoes personal processing, the picture looks three-dimensional, as close to reality as possible. Essentially, this is the premium High Dynamic Range format. Used in a limited number of vehicles from the more expensive segment.
These views require the TV to support 4K resolution, wide color gamut, at least 10-bit shade depth.
HDR in photos and TV: differences
The task of this technology in smartphones, cameras and TV is the same. to achieve maximum color and super contrast, only the approaches are different:
What is HDR on TV
Such a decoding as an extended dynamic range is unlikely to say something to a simple user without a technical background. Rather, users will be interested in the practical side of the question: what will it give for viewing and is HDR support needed on the TV? This video format is not just created to increase the number of pixels in the picture, it makes the content “alive”.
The technology aims to expand the range of color and contrast of the image. As a result, the viewer gets a super-colorful picture, the best rendering of shades, the opportunity to see the smallest details in the darkest and lightest scenes. Studio-quality content is now available when watching movie hits at home.
A guide in 5 points of what is HDR on a TV: 2 types, setting, how to turn it on
Almost all major brands have taken on the issue of TV with HDR support: Samsung, LG, Sony, etc. over, this technique is far from the budget category. So is the technology worth buying the more expensive HDR models? Find out in more detail what it is, where else is it used and what content can be watched on similar TV. in the article.
What you can watch in HDR
Beginning in 2015, major film studios began releasing most of the films in High Dynamic Range. This means that there is content with realistic contrast and color, and it is becoming more and more.
Where and what you can see:
- Cinemas online. The same “Netflix”, “Megogo”, Ivi and other services contain a collection of new films adapted for the HDR mode on the TV.
- Gaming consoles from Sony. Consoles such as PlayStation 4 Pro can be connected to an HDR TV and run gameplay in improved quality. Not all, but, for example, shooters from the Gears of War series or other gaming content from major developers. you can.
- Blu-ray players. Blockbusters released on Ultra HD discs will be shown on suitable TV, amaze viewers with realism of shades and jewelry elaboration of details.
Important: HDR content cannot be viewed on regular TV. The maximum that the viewer will see is a standard image, without an increased range of shades and contrast.
What does TV need to please viewers with hits in HDR format:
- resolution. min 4K (3840 x 2160 pixels);
- brightness margin. 1000-1500 nits;
- color depth. at least 10 bit;
- color palette. Rec. 2020.
In addition, special technologies are used, such as quantum dot illumination. Of course, in addition to a suitable TV, such as the KD43XF7596BR, you will also need content released in a suitable format.
So what does HDR TV do? Super color and stunning contrast in movies or gameplay. There is no need to “twist” the saturation of the tone or make the image temperature higher / lower. The quality of the video content is automatically the best. How to check the presence of HDR on a TV. the reader already knows and can do this to find out if the picture “comes to life” here.
How to enable HDR on my Windows 10 computer?
HDR stands for High Dynamic Range and is a technology that offers a richer and more colorful viewing experience on your screen. With HDR, you see more detail in both the shadows and highlights of the scene. With HDR, you get brighter, brighter and more detailed images than a standard display. HDR is great for immersive videos, including movies and games. Some people say HDR improves the viewing experience more than high definition 4K or 8K. If you have a new Windows 10 PC that supports HDR, you can enable this display technology. Here’s how
What you need to enable and use HDR in Windows 10
First of all, you need a 1080p, 4K, or 8K display with HDR support. This could be a computer monitor like the trendy ASUS PA32U we tested, or a Smart TV like the Samsung 4K UHD 7 Series. HDR must be turned on on your monitor or TV. Some HDR capable displays do not have this feature enabled by default, so you should check if you have it enabled.
Second, you need a modern PC with a processor and video card that works with HDR. Intel introduced HDR support in its 7th Gen Intel Core processors, which launched in 2016. Both NVIDIA and AMD also started offering HDR support in 2016. Therefore, you need to have a relatively new processor and graphics card released in 2016 or later to use HDR on your Windows 10 PC.
Equally important is the cable you use to connect your PC to the monitor or TV you are using. You must use a cable that supports HDCP 2.2 (High Bandwidth Digital Content Protection) and 4K. This can be an HDMI 2.0 cable, such as a DisplayPort 1.4 or USB Type-C cable. The best HDR cable would be DisplayPort 1.4 or USB Type-C. You must use a cable that works with both your graphics card and your display.
Last but not least, you need Windows 10 Fall Creators Update or later. For the best HDR experience on Windows 10, we recommend using the Windows 10 April 2018 Update or newer.
How to enable and configure HDR in Windows 10
If you’ve met the general requirements, it’s time to open the Settings app in Windows 10. One quick way to do this is to press Windows I on your keyboard. Then go to System.
In the column on the left, select Display if not already selected by default.
On the right, find the Windows HD Color section and turn on the Play HDR Games and Apps switch.
Windows 10 turns on HDR and asks if these display settings should be saved. If everything looks good, click or tap Save Changes. Otherwise, click Revert or wait a couple of seconds until Windows 10 reverts to previous display settings with HDR disabled.
HDR is now enabled. However, for the best HDR experience, click or tap on the link that reads “Windows HD Color Settings”.
You can now see more settings for your display.
Turn on the “Play HDR games and apps” and “Stream HDR video” switches so you can enjoy HDR in games, applications and videos such as YouTube.
Scroll down the list of settings and you will see a preview video that shows how the video looks with your current video settings. Play it to see if you’re satisfied. Then see the “Appearance of SDR Content” section. SDR stands for Standard Dynamic Range. This is your usual video setting when HDR cannot be used.
The problem is that when HDR is enabled, standard non-HDR video content can look terrible. You can improve the video quality for SDR content by using the SDR Content Appearance slider. Adjust the slider until you achieve a balance between the two image samples shown in Windows 10. You are now done setting up HDR in Windows 10 and hopefully you can enjoy high quality video content.
I am not happy with the image quality after enabling HDR in Windows 10. What should I do?
HDR can deliver immersive and beautiful video to your Windows 10 PC. However, due to the lack of standardization, this technology has many drawbacks and does not provide a plug and play experience. Not only do you need HDR-capable hardware, but an operating system to support HDR, as well as apps, games, and video content. Therefore, you have chances to run into problems such as standard SDR video content looks too bright or too dark, colors are not displayed correctly, etc. If you’re having trouble, we recommend this support guide from Microsoft: HDR and WCG Color Settings in Windows 10.
You have successfully enabled HDR for Windows 10 PC?
If you follow all the steps and requirements outlined in this guide, you can enjoy HDR apps, games, and video content on Windows 10. We know what we did and we loved it. Before closing this article, please tell us if everything went smoothly and if there were any issues during the installation process. Comment below and let’s discuss.
How to enable HDR on LG TV
HDR (High Dynamic Range) has replaced Ultra HD: in fact, it is a new signal technology that makes the picture on your LG TV more “live” and natural. HDR is capable of delivering an increased range of brightness and a wide gamut of color shades. Due to this, the quality of films and other video content approaches the quality in cinemas, and also makes watching TV more comfortable, reducing eye strain.
This effect is possible because the video signal contains more information about the brightness and color of each pixel, as well as ultra-high resolution. Bright areas and their relationship to dark areas of the screen appear more natural on HDR TVs than in previous TV generations. Another plus of HDR is the color palette based on the use of 10-bit color presentation. Thanks to her, the viewer can see the subtle nuances of colors that were previously not available. than a billion shades per pixel in numbers: 164 times more than previous generations of 8-bit TVs.
Many modern LG TVs are equipped with HDR support. ActiveHDR technology supported on LG TVs since 2017.
These are TVs of the OLED, Super UHD, LED UHD, NanoCell lines. They support all major HDR formats. You can find out if your model supports HDR in the User Guide or other documents for your TV.
- HDR10. The number 10 in the title means that the format supports ten-bit color coding.
- HDR10. Unlike the previous one, in this video format, the brightness of the image can change during playback, while in HDR10 it is preset.
- DolbyVision. The format supports 12-bit color coding, which makes the image look as realistic as possible.
To watch HDR content on your LG TV, this function must be activated. It’s very simple. To enable HDR, you need to do the following:
- Select “Home” in the TV menu.
- Find the HDMI section.
- Go to his “Settings”.
- Select the “Advanced” section.
- Find the item “Image”.
- Select HDMI ULTRA DEEP COLOR.
- Activate it by moving it to the On position.
- Click Restart.
In OLED models of 2017-2020, you will also need to activate the Dynamic Tone Mapping function, which optimally distributes the brightness setting in HDR video.
Also, OLED TVs of 2017-2020 can be calibrated to bring the HDR image closer to the quality comparable to the image in cinemas, and in games to achieve an image without input lag.
Important: if you adjust the image while on one of the HDMI, then you interact with the profile of this input only. Remember that there can be two profiles: HDR and SDR. Therefore, to set up an HDR profile, you will need to run HDR content on your LG TV (this can be a movie, TV series or game).
Run any HDR video content on your TV before starting calibration.
- Under Image, select HDR Technicolor Expert.
- In the image settings, choose:
- Energy Saving / Eye Comfort. Off.
- OLED Light. 100.
- Contrast. 100.
- Brightness. 50.
- Sharpness. 10.
- Color. 55.
- Tint. 1.
- In the “expert settings” select:
- Dynamic Contrast. Low.
- Super Resolution. Off.
- Color Gamut. Auto.
- Color Filter. Off.
- In “White Setting” select Warm2 mode.
- In Picture Options, select:
- Noise Reduction. Off.
- MPEG Noise Reduction. Off.
- Motion Eye Care. Off.
- TruMotion. On (De-Judder: 0 / De-Blur: 0).
The latter option is especially important for owners of LG OLED TVs, as otherwise there is a possibility that the image will start to flicker. This is due to the fact that, due to the refresh rate of 120 Hz, movies with a frame rate of 24 frames per second do not always display well. TruMotion interpolates frames to make the image smoother. In this case, the rest of the parameters should be set to 0.
LG OLED TVs of 2018-2020 also have TruMotion Pro mode, aka Black Frame Insertion, which is able to forcibly lower the frequency from 120 to 60 Hz, adding a black frame to the image once a second.
Also, depending on the LG TV model, the settings may include Edge Enhancer (if this option is available, it must be left in On mode) and Gamma (if this option is available, it must be set to 2.2).
Almost all major studios and other content producers have been actively switching to HDR video shooting for at least several years: among them the largest companies: Paramount, Columbia Pictures, Walt Disney, Warner Brothers, New Libe Cinema b Universal. Among streaming services, Netflix and Amazon were the first to do this, and among Russian streaming services, Amediateka, Ivi, OKKO, Megogo can boast of having films in this format. So finding a movie or TV show to watch on your LG TV and enjoy the highest picture quality is no problem.
How to find out if your TV supports HDR technology
This does not require any extra effort. All the necessary information is presented on the box and in the technical documentation. For example, if the box is labeled Ultra HD Premium, then this model is HDR-compatible. If there is a 4K HDR inscription, then such a device will not support all versions of the standard popular today.
How to enable HDR on a Samsung TV? No additional action is required. Just play the content in this format. If the equipment does not support this standard, then an error text will appear on the TV screen.
Consider a few popular HDR TV models from well-known manufacturers. For example, Sony has presented a new TV line. XE93. Absolutely all models in this line support the HDR standard. The screen diagonal starts from 55 inches. New models from Sony support absolutely all versions of HDR. They also have several additional benefits:
- innovative Slim Backlight Drive with dual diode blocks. Provides fine control of the brightness of all areas of the screen;
- X-tended Dynamic Range Pro improves picture quality regardless of content format;
- TRILUMINOS Display technology ensures harmonious reproduction of all shades of red, blue and green, and also increases brightness;
- X1 Extreme processor carries out HDR remastering, aimed at eliminating noise and improving picture quality.
All of the above innovations can significantly increase the image quality. Maximum detail is guaranteed. The combination of HDR and 4K increases viewing angles. Even if you are in close proximity to the screen, the image is still clear. The combination of innovative technologies provides a comfortable viewing regardless of the distance from the screen to the viewer.
LG also unveiled a new line of HDR TVs. It is the introduction of Active HDR technology that has become the main feature of the new products from the South Korean brand. Absolutely all models in the line support HDR10 and HLG formats, as well as Dolby Vision. Much depends on the format of the content. Sometimes it even contains static and dynamic data about the brightness level of a scene. Active HDR technology aims to optimize the video stream for a specific scene. This allows for even greater brightness and realism.
What is HDR on TV and how to enable it
TV manufacturers are constantly improving picture quality. Therefore, new standards are regularly announced. HDR TV support: what is it? New TV models are released with this standard. What are its distinctive features? Does it make sense to buy such a TV? To answer these questions, let’s take a closer look at what HDR is. Let’s analyze the main differences of this standard in the photo and on the TV screen.
Difference with HDR in the photo
HDR modes in TVs and in photographs have significant differences. When it comes to photography, HDR shows up in an acidic palette and unnatural contours. Television uses completely different principles. Let’s take a look at how HDR works on a TV screen versus a photo to see where the difference is.
HDR TV support means high dynamic range and the largest possible gamut of colors. Together, these parameters make the screen image natural and realistic. Video parameters are not limited by standards such as HDTV, as the shooting process and studio processing capabilities have undergone significant upgrades.
In photographs, HDR appears in multiple frames with varying exposures. Based on this, one frame is created, which does not create, but simulates a wide dynamic range.
Based on this, we see that the low brightness solution can be approached from different angles. HDR technology can be a fine-tuned process for keeping images natural. The viewer will be able to see the natural quality of the picture taken with the camera. The second approach is a collection of different frames to simulate a specific scene. Therefore, HDR in a photo is a lack of realism.
What you can watch in HDR
Mostly all well-known studios are actively switching to HDR content shooting. This process was launched back in 2015. Popularization of HDR content is in full swing. Viewers will not feel significant problems with the lack of films and TV series shot using this technology.
Old TVs were noticeably inferior to studio formats. Because of this, the color palette and image depth were significantly reduced. Over time, the situation has changed for the better. Everyone will be able to watch films or series in studio format at home.
Online cinemas, led by Netflix and Amazon, were early adopters of HDR. Today, absolutely all content providers work with this standard. If you have an HDR TV at home, then you can watch absolutely all new films, TV series, programs in the highest quality. The catalog of available content is constantly expanding. All new products are released in HDR format.
The PlayStaion 4 and Xbox One S game consoles also support HDR. Not all video games are released in this format, but the most ambitious projects will provide an opportunity to fully immerse yourself in the game. Horizon 3 Uncharted 4 Has Already Received Necessary Graphics Improvements.
The Ultra HD Blu-Ray format is another new addition. It also supports HDR by default. Movies released on this type of media can be played back on HDR-TV. Owners of this technique will fully appreciate the extended dynamic range and rich palette of colors. The highest quality of dark and bright areas of the screen will pleasantly surprise the viewer.
Should you buy a TV with HDR features? There is plenty of content in this format. It has long ceased to be a rarity. Therefore, you can safely buy an HDR TV to enjoy a realistic image.
What is HDR on TV
Contrast and the ratio of bright and dark areas are the criteria that determine the quality of the image. Color rendition is no less important, in many respects it determines the realism of the picture transmitted to the TV screen. The level of comfort while watching movies, TV series, programs will depend on the listed parameters.
Imagine one TV has a rich color gamut and excellent contrast, while the other has a high resolution. Which image do you think is more attractive to you? Of course, the first one. The contrast model is capable of providing a natural picture. It doesn’t matter which manufacturers’ equipment is being compared: Samsung, LG, Phillips or Sony.
Screen resolution is important, but contrast completely negates it. Since it depends on the contrast how realistic the broadcast image will be. Therefore, experts emphasize that natural contrast, coupled with competent color rendering, is much more important than having support for 4K resolution.
The idea behind HDR technology is to expand contrast and color gamut. Bright areas will appear more natural on an HDR-enabled TV than on a conventional device. The image looks deeper and more natural. Deep shades of reds, greens and blues dramatically expand chromaticity.
The introduction of HDR dynamic range technology has contributed to the creation of a new standard for the color palette. Rec. 2020. Its peculiarity is manifested in shades that ordinary TVs are simply not able to reproduce. The most striking example is the corporate red color of the famous automobile brand Ferrari. It is possible that earlier you simply did not pay attention to such insignificant nuances. However, older TVs are not capable of transmitting such intense hues. In reality, these colors look completely different.
Each user will be able to see the millions of new, complex colors that have become the foundation of the HDR format. Note that the technology under consideration is based on the use of 10-bit color display.
To fully appreciate the benefits of HDR, you need a TV that supports HDR and the associated content. In order to provide high dynamic range, HDR technology uses advanced backlighting. Brightness control is carried out in different areas of the screen. this approach allows you to achieve maximum peaks in those areas where it is really needed. The most striking example is the part of the frame in which the sun is shining. The brightness margin significantly exceeds this parameter for conventional TVs. HDR TVs. up to 1500 nits, while regular devices. 400 nits.
The improved palette of colors suggests that innovative technologies will be used at the hardware level. For example, quantum dot illumination. Until recently, TVs with such backlighting literally “thought out” the shades, which did not benefit the viewing. Now directors have the opportunity to choose the optimal color to make the scene as deep as possible.
The HDR standard has been implemented by combining various sophisticated technologies. Therefore, the highest quality image is demonstrated by premium 4K devices. They have the required technical characteristics.
HDR technology has several versions. Let’s consider each of them. HDR10 is the most common. Its peculiarity lies in the fact that the channel transmits up to 10 bits of content. Color palette. 1 billion shades. The stream contains data related to changes in brightness and contrast in a specific scene. It is this feature that makes the image natural.
The HLG standard was created by a British-Japanese tandem. The BBC and NHK have managed to create an excellent standard. 10-bit encoding has been retained. The changes affected the purpose of the stream. The main idea is transmission. There is no critical channel width for the standard under consideration. 20 MB is enough to ensure high quality streaming without any interference.
Dolby Vision is an extended luminance range that far exceeds the capabilities of all existing technologies. The standard was implemented by Dolby. The basic principles of HDR technology have been preserved. The changes are manifested in the expansion of the color channel. 12 bits. The color palette has 8 billion shades. The data stream is colossal. Therefore, you can appreciate the benefits of this technology in the cinema.
HDR technology connection
You don’t need new cords to play HDR content. An HDMI High Speed cable should be sufficient. Newer TVs support this interface. Therefore, there should be no connection problems. In situations where equipment is connected using an AV receiver, you must first make sure that the tuner is equipped with an HDMI 2.0 interface. Many manufacturers have carried out large-scale interface upgrades. Therefore, HDMI 2.0 is no longer a rarity. To turn on the TV, simply plug the power cord into a power outlet. Then select the signal source. You can play content using special applications such as Netflix.
What the director was thinking
To enjoy all the advantages of this technology, alas, you need not only a display with an extended dynamic range of the picture, but also the corresponding content. HDR TVs, in principle, learned how to do it. The brightness of the screens is raised to 1000 nits (for traditional models this indicator usually does not exceed 500 nits), and the backlighting is made direct local, i.e. capable of highlighting different fragments of the matrix in one frame with different brightness. An extended range is achieved with such simple techniques.
LG unveiled HDR-capable OLED G6 TVs at CES 2016. It is clear that with the display of black in organic diodes, everything is fine from the beginning, but they still cannot offer a brightness of 1000 nits.
However, the difficulty lies in the fact that the effect may turn out to be the opposite than the color and light solution of the scene intended by the director. Together with the colorist, he developed the color scheme, colored the frames using the extensive palette of colors provided by the P3 cinematic standard. As you know, SDR TVs do not work with the P3 palette. they are limited to the Rec.709 standard, which simply cannot display some colors, and therefore the TV versions look paler, not as originally intended. over, TV versions often undergo special mastering in order to display colors correctly.
Sony X93 4K HDR TV Showcased at CES 2016
LG SMART TV WebOS Select HDR Picture Mode
In turn, HDR TVs can change the color scheme as they please, following their own algorithms, which, of course, do not know about the “vision” of the director and colorist. Therefore, the engineers immediately came up with the idea of transmitting metadata along with the video signal, containing information on how to improve the SDR picture to HDR. Where to darken, where to lighten, where to add red, and where. purple. And if the TV supports it, then the picture will fully correspond to the director’s intention.
Why HDR is needed
The most important parameters for the quality of the displayed picture are contrast and color accuracy. If you put two TVs side by side, one 4K, and the second Full HD, but with an increased contrast range and better color reproduction, then most will choose the latter option. Because the image on it looks more realistic and less flat.
The abbreviation HDR stands for “High Dynamic Range”, i.e. extended dynamic range. “Expansion” in this case means higher peak brightness and more darkness where there should be no light. Compares indicators with the traditional SDR range.
Example from Dolby Vision: What an HDR image looks like (right) versus SDR (left)
As a consequence of increasing the gradation of brightness, a greater variety of shades of all colors appears: blue, red, green and their combinations. Therefore, all HDR novelties are obtained with an extended color gamut. Thus, the whole point of HDR is to show a higher contrast and full color image than SDR.
What is HDR TV and why it shows brighter and blacker
At CES 2016, no one was surprised by 4K TVs with curved screens. This time, everyone peered at the screens, determining who has the blackest black, and the picture is more realistic than reality. The abbreviation HDR sounded like a refrain throughout the exhibition. What lies behind it and what benefits the viewer will get from HDR will be discussed in this article. At the same time, we will figure out how the definition differs from its photo-brother.
So far, HDR content is negligible: several titles are provided by Amazon, Netflix and Vudu, the latest Star Wars is filmed and edited in a format that supports Dolby Vision (one of the variants of HDR). You might think that there is no point in high dynamic range TVs yet.
However, Technicolor offers the ability to convert SDR content to pseudo-HDR. This is not a button that will automatically improve the image without the intervention of a specialist, but a set of utilities called “Intelligent Tone Management”, which will greatly facilitate the work of restoring the very color scheme that the director and the colorist intended. So the volume of quality content will grow.
On the right, an image is displayed on the TV after processing with Technicolor algorithms
If your TV supports HDMI 2.0, chances are high that it will soon receive a software update to HDMI 2.0a, the standard required for transferring metadata. Physically, the standards are fully compatible, the difference is solely in the software processing of incoming information.
But there is already one HDR!
This abbreviation has been known in the photography world for several years now, and many modern phones have a feature called this in their camera options. But photo-HDR and TV-HDR are, one might say, homonyms: they are called the same, but they mean completely different. In fact, Photo-HDR is a way of capturing reality, while TV-HDR is a way of displaying it.
Samsung’s new 2016 flagship TV KS9500 has already received UHD Premium certification
A photo taken using the HDR function is actually a mix of several photos with different exposures: in simple versions, only two images (overexposed and darkened) are used as sources, in more complex ones. up to six. Their combination leads to the fact that dark places look dark, bright. bright, transitions between them. sharp. The picture looks more contrasting, but not at the expense of displaying more colors, but rather due to several exposure options tied together. That is, photo-HDR changes the image, while TV-HDR simply displays it better.
As a conclusion
As it was written at the very beginning of the article, most will prefer a full-color picture than a high-resolution one. This is logical, a lot of pixels is good, of course, but good pixels are even better.
The Panasonic DX900 TV, in addition to the 1000 nits brightness required for UHD Premium certification, offers various settings for obtaining a motion picture, and therefore, in addition, acquired the THX certification.
LG UJ6200 setting up HDR
Therefore, the development of HDR seems much more promising than a further resolution race. At CES in 2016, the UHD Alliance announced a new certification for UHD Premium TVs. Models with this label must not only support 4K video, but also have a brightness of at least 1000 nits, and show certain black levels and an extended color gamut. Although the title does not say anything about HDR, the specifications clearly indicate support for this technology. Note that in 4K Blu-ray, HDR is already declared by default.
The problem is that not all TVs capable of displaying HDR will be certified UHD Premium: they will not meet some requirements not related to wide dynamic range. And this issue of standardization needs to be addressed by TV and content manufacturers. Apparently, 2016 will be dedicated to this.