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OLED TVs, thanks to their self-luminous properties, can bring the purest black performance; quantum dot TVs, thanks to their material properties, can bring a wider range of color performance. For HDR (High-Dynamic Range) TVs, consumers do not seem to be too explicit about its technical characteristics. The most straightforward explanation is that the HDR technology can make the black darker and not lose the details of the shadows. It can be improved to a more real brightness performance in terms of brightness, further enhance the contrast of the screen, and the color gamut will also expand, giving the user a shocking impression. visual impact. 
· Internet TV HDR has made the whole market even more confused. When it comes to HDR TV, we have to mention Sony again. In China, Sony is the first manufacturer to launch 4K HDR TVs. By 2016, more and more TV manufacturers have started to launch their own HDR TVs, and this technology has been rapidly popularized. However, since Internet TV manufacturers began to expand HDR technology, the entire industry began to become a mixed bag, with HDR TVs ranging from RMB 2,000 to RMB 4,000, and RMB 10,000 at high prices, leaving consumers unclear exactly what to choose. . 
We can't understand the parameters that we can't understand, but we can start from the needs of HDR content. The HDR content is produced with high dynamic range, and the high brightness facilitates the display of more highlight details and has a more natural and natural effect. At the same time, the brightness range or the dynamic range is wide, many of the original dark details can also be well displayed. Therefore, for a qualified HDR TV, the first element to have is high brightness. 
Ultra HD Blu-ray players want to experience the best results of HDR, an Ultra HD Blu-ray player is an essential device. Currently HDR source is divided into two formats, one is HDR10, and the other is Dolby Vision. Both formats require separate decoding. Since not all HDR TVs are compatible with both formats, and some TV products have poor HDR source decoding capabilities, it is not enough to have a qualified HDR TV, and it will also bring inconvenience during playback. There is a bad experience. 
· Blu-ray discs have a broadcast carrier, naturally, ultimately, 4K Blu-ray HDR discs. Because the resolution of Blu-ray discs has been greatly improved, HDR has also been added with high dynamic range, which has brought about a more delicate display effect while increasing the capacity. Although ultra-high-definition Blu-ray discs have not yet been completely popular, and the number of sources is not large, 4K HDR has become the direction of future development, so the number of chip sources will increase further. It is inevitable that various chips will introduce 4K Blu-ray. 
Written at the end:
The emergence of TV HDR technology is not accidental. It is an inevitable result of the rapid development of display technology. It also breaks the bottleneck of development that has not ushered in innovation since 50 years ago. It will also become an important development direction of the TV industry in the future. Today, although the author has popularized even HDR TVs, it may not be able to enjoy the HDR effect in the true sense. However, a qualified HDR TV can also play a significant role in promoting ordinary SDR film sources.
As for those low-cost HDR TVs, they only work hard on the decoding chip and can only play it. The improvement of the picture is almost zero. Therefore, everyone must pay attention to the three elements mentioned in the article when purchasing HDR TVs. If you are a video player, then using HDR TV with Blu-ray and Blu-ray discs, will bring the most extreme HDR effect.
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Say you might not believe it! Fake HDR TV can kill you
Although HDR has been fired in the past two years, it is not a newly developed technology. As early as 2004, Foxconn introduced the SuperCCD SR technology, which uses half the pixels to record the normal brightness and the other half to record the dark part of the screen. In 2005, the photo design software Photoshop introduced the HDR compatibility function, and then HDR was gradually popularized in SLR cameras and image processing software. In the mobile phone field, it is driven by the HDR camera function of Apple's iPhone, which further accelerates the popularity and application of HDR in mobile phones.
Fake HDR TV can kill you
After entering 2016, the television industry has ushered in a turning point in display technology innovation. In addition to the strong outbreak of OLEDs and quantum dots, HDR technology has also become a favorite in the TV market. At present, most HDR TV products are positioned on the mid-to-high-end level and enjoy the same promotion position as 4K, OLED, and Quantum TV. The reason why HDR enjoys such a high status when it enters the TV field is that HDR has a more significant role in promoting the picture quality. With HDR technology blessing, the picture is closer to reality
What is the significance of HDR existence? The emergence of HDR technology has ushered in a major innovation in the development of video formats
The significance of HDR technology lies not only in improving the performance of the screen, but also in the development of video formats. There are five important dimensions. They are resolution, color gamut, grayscale, frame rate, and SDR. For the first four items, Basically, it has matured enough, except that the SDR standard has not ushered in innovation for 50 years, until the emergence of HDR ushered in a turning point. Therefore, the birth of HDR also re-planned the research direction of video shooting, codec and imaging, and played an important role in upgrading the entire display industry. Sony is the first manufacturer of 4K HDR TVs
What kind of TV is a qualified HDR TV? High brightness is an essential element of HDR TV
However, high brightness is not enough. For LCD TVs and Quantum TVs, it also requires superior light control technology and the ability to restore details in dark parts. That is, black must not only be dark enough, but it must not be lost. The details in the shadows require constant adjustment of the backlight brightness to achieve high contrast or high dynamic range. If you blindly pursue pure black and sacrifice the details of the shadows, it is obviously not worth the candle and it does not meet HDR standards. Sony Dynamic Backlight Master Edition has outstanding light control capabilities
HDR is not only a display technology, but also covers the entire ecosystem. It has changed the entire industry chain from photography to content production to display. In addition to brightness and dynamic range, the wide color gamut is also the focus of HDR technology. Because in the high brightness and high dynamic range, the picture can show more details, if the TV's color rendering ability is poor, it will show the overall brighter or darker picture, there is no vivid color details as In the transition, the viewing experience is naturally worse. The wide color gamut is also the focus of the HDR technology
I believe that after reading the above three points, we should understand where we should pay attention when selecting HDR TVs. HDR content is content that is produced with high brightness, high dynamic range, and wide color gamut as a standard. What it pursues is a picture that is more in line with the needs of the human eye. So when selecting an HDR TV, you can't just look at its color performance. You should also pay attention to its peak brightness and dynamic range. TV products that meet the above requirements can qualify as HDR TVs. . Blu-ray player is an essential device
In addition to having the most basic playback and decoding capabilities, the Ultra High Definition Blu-ray Disc player also has the ability to enhance the picture quality itself. Many image enhancement functions can be selected. The Ultra High Definition Blu-ray player can be said to be the current family. Audio and video entertainment can achieve the best experience of the content carrier. At present, the price of a good Ultra High Definition Blu-ray player is no less than the price of a medium to high-end TV, but it can indeed bring the most shocking HDR experience experience. 4K HDR Blu-ray disc absolute spike online source
Although we currently see 4K Blu-ray or HDR zones on TV, due to network restrictions, virtually all online Blu-ray 4K resolutions cannot even reach half of the original disc, let alone HDR effects. It can be said that in order to truly experience the HDR effect, online resources alone cannot be realized.