However, it is worth mentioning that "HDR" is not as simple as three English letters. Essentially, there are two corresponding mainstream standards, namely HDR 10 and Dolby Vision. Not to mention other smaller HLG or advanced HDR. If you want to know more about HDR, these two standards should be known.
Dolby Vision Dolby Vision is a complete set of patented solutions. Content, broadcast sources and display devices must be compatible with Dolby Vision standards, and each Dolby Vision display device has a dedicated chip to test and confirm the output capability (brightness, color space, etc.). ) of this device. When playing, these data are transmitted to the playing signal source of Dolby Vision, and the signal source will optimize the output frame by frame according to the data of these display devices, which not only takes into account the capabilities of the display devices, but also maintains the expression intention of the original signals.
Dolby Vision adopts advanced hardware solutions.
HDR 10 and HDR 10 are home appliance manufacturers such as Samsung, Sony and LG. They hope to have a more open platform than Dolby, save the patent fees paid to Dolby, and do not need to add a certification process to weaken the control of their products, so they began to develop their own solutions for HDR video, and finally evolved into a standard-HDR10. HDR 10 is based on the same core technical functions as Dolby Vision, and its parameters such as brightness and color are similar to Dolby standard, but HDR 10 only supports 10bit color depth, and Dolby has the highest 12 bit.
Therefore, Dolby Vision and HDR 10 have their own advantages and disadvantages. Dolby Vision adopts a hardware solution and obtains better restoration accuracy through frame-by-frame rendering. However, HDR 10 can choose a wider range of content carriers, use UHD 4K Blu-ray and enjoy online streaming media. At present, Dolby Vision can only be enjoyed through Netflix, VUDU and Amazon online streaming media, which means that HDR 10 is more compatible with "big and complete" and Dolby Vision is "small and refined". As for how to choose, different people have different opinions.
As we said before, HDR 10 is the most widely used HDR standard at present, because it is open source. Whether from the freedom of customization or the need to pay licensing fees, it is very attractive to manufacturers, such as Sony and Samsung, which have a soft spot for HDR 10.
Dolby Vision is a standard developed by Dolby Company, which is younger and less popular than HDR 10. Dolby Vision is not open source, and the adoption of this standard also requires licensing fees, so it is relatively unpopular. At present, LG is a big company firmly supported. However, the advantage of Dolby Vision is that the technology is more advanced than HDR 10, and it can also make the effect better.
The new standard HDR 10+ We can easily see from the name that HDR 10+ is an upgraded version of HDR 10. If you want to make it clear what the selling point of the new standard is, you have to start with the technical differences between HDR 10 and Dolby Vision.
We know that HDR is not an effect that can be "covered" on any screen (if a TV product advertises that it can open HDR on any content, it must be pseudo-HDR), it needs to process the metadata of HDR video content and finally get the gorgeous effect we see. HDR 10 is relatively simple in this respect, because its processing and conversion only depend on the global data of the whole video. Dolby horizon goes further, and metadata contains every scene change. It can be optimized for each scene, and the accuracy is naturally better than HDR 10.
The selling point of HDR 10+ is very simple, which is the same feature as Dolby Vision. In other words, the biggest advantage of Dolby Vision over HDR 10 no longer exists. Moreover, HDR 10+ is still an open source standard, which means that manufacturers still have a high degree of customization freedom, and more importantly, they do not need to pay licensing fees.
Considering the advantages of supporting Dolby Vision before, and the number of manufacturers and products supporting it is slowly increasing. In fact, it is not a problem that a product supports two standards at the same time. We used to think that HDR 10 and Dolby Vision would live in peace and there would be no competition. Unexpectedly, when HDR 10+ appeared, the posture seemed a bit aggressive.
At present, HDR 10+ seems to have a good start. At least Panasonic recently announced that all its "4K Pro" series TVs, including the newly released 77-inch EZ 1002, will support the HDR 10+ standard. In addition, Samsung also indicated that it will support HDR 10+ in the future.
It seems that HDR 10+ really has great potential. It not only fills the gap between the previous generation HDR 10 and Dolby Vision, but also maintains its greatest advantage-open source. More importantly, HDR 10+ was initially supported by big manufacturers. Does this mean that the HDR field of the whole TV market will be dominated by HDR 10+ in the future? I don't know.
The other is Dolby Vision. Although it has lost one of its biggest advantages, Dolby Vision is still the highest standard of HDR technology. Dolby strives to ensure the leading position in technology. Compared with HDR 10+, Dolby Vision can support the highest color depth of 12, and the brightness can reach the frightening 10000 nits. It is understood that Dolby is still exploring the limits of technology. At present, HDR 10+ is far from completely defeating Dolby Vision.
For us ordinary consumers, the mainstream standard in the market is of course as little as possible, so that there will be less confusion when shopping. But at least as far as HDR standards are concerned, this is actually not a very important thing. Just as many devices have supported dual standards at the same time before, so will the future market (although Samsung and other manufacturers will adhere to the HDR 10 route). If you really care about it, you should pay more attention to the standards it supports when buying TVs, players and Blu-ray discs.