日期：2016-09-13 类型：Technical Information
September 9, 2016
If you want to buy a new TV, you may have heard of HDR, a new technology that fundamentally improves TV images Sounds great, doesn't it? But you may have heard another two words related to HDR that don't sound so good: format war
Some people believe that there is a format war between the two HDR functions They warned of similar winner take all, fight to death wars between VHS and BetaMax or Blu ray and HD-DVD
I have been paying close attention to the development of Dolby Vision. My point of view is simple: Don't worry. When HDR has two different formats, no format war. Two HDRs can work, and I hope they can coexist peacefully
Chris Chinnock, a media analyst, agreed with this statement. Chinnock, a senior image expert, said in the recently released white paper that, "It is wrong to call them format wars, because there are no winners and losers. Dolby Visual is a comprehensive scheme that is very valuable in the market. HDR10 is more like a special" light "case of Dolby Visual - providing market value again. Two formats, even other formats, will coexist in the market, with no winners and losers." (Chinnock's white paper can be downloaded freely). I will explain more details about why there is no format war. But there are differences between the two, and I will also explain them.
First, let me go back and explain what HDR is and why you want it. In short, HDR (High Dynamic Range) produces images closer to real life. HDR images have higher contrast, which means that one part of your screen can see more brilliant summer sky, and the other part can see more dark dense forests. You can see the details of these two parts on the screen. In traditional TV, the dark part will turn into a piece of dark, and the bright part will turn into a piece of bright white. The contrast between the two parts is too strong to balance the two image effects. With HDR, you can see millions more colors than traditional TV. These extended color and contrast ranges can provide more delicate details and reflect more subtle textures and patterns in the world around you.
*No format war
People think it is natural to have a format war, because there are two formats. However, the two formats are compatible. In fact, most HDR movies in Hollywood started with Dolby's visual mastery, and then the studio made an HDR10 version on the original Dolby version.
TV manufacturers can easily support both formats. Dolby Visual Authorized TVs - from LG, Vizio to TCL later this year, all support HDR10 on the same series. We have designed Dolby Visual Broadcasting Technology to provide to TV manufacturers, so we hope it can also support HDR10 content, because when you buy Dolby Visual TV, we do not want to limit your experience. We hope you can experience all HDR content. For TV buyers, this represents a clear choice. You can purchase a TV that only supports HDR10, or a TV that supports both HDR10 and Dolby Vision.
Top streaming video services, Amazon and Netflix streaming content support HDR10 and Dolby Vision. If you have a TV that supports two technologies, they will show you Dolby Visual, because these services let you enjoy the best experience.
*Differences between Dolby Vision and HDR10
In terms of producing a high dynamic picture and their roles in the entertainment industry, Dolby Vision and HDR10 are quite different. The former and the latter of each scene in a movie or TV program look different. Dolby visual technology adds a data layer for each scene, which can be manipulated by content creators. Scene by scene data makes each film or TV program segment behave as the artist wants to express. HDR10 only provides data for the entire movie and TV program, so their pictures are not optimized for each scene.
Not all televisions are the same. Some televisions may be brighter than others, and some have higher contrast. Some televisions can display a large color gamut. The challenge of HDR is to match the content of various televisions, keep the color accurate, and accurately retain all details of highlights and shadows.
Dolby Visual TV includes an advanced system that combines Dolby's visual content with the information of the display's capabilities to ensure that each scene gives full play to the advantages of TV color, brightness and contrast. You can see the best image on the monitor.
HDR10 TV must know how to match the display capability to adjust the image, because the content does not include any information about what is happening in individual scenes. This means that the quality of the various images you see depends on the content. Dolby Vision and HDR10 have different positions in the entertainment industry. At this point, HDR10 is only used for content broadcast on your TV. Dolby Vision can also be used in theaters. With the establishment of Dolby Cinemas around the world, top Hollywood film and television companies have announced 50 kinds of Dolby Vision, including recent hotspots such as Kubo and the Two Strings, Expendables, and Star Trek. Many Dolby Vision movie titles will enter the family. Film makers like the multi-functional Dolby vision, because they can perfectly create the theater vision, and have confidence that their visual content will be retained for family viewing.
Maybe you've heard of other differences between Dolby Vision and HDR10. Some people will point out that TV manufacturers buy Dolby Vision for their monitors, but HDR10 is free. This is true, but the difference is not critical. The cost plus Dolby Vision is less than US $3-2 per unit. The manufacturer is making some very affordable Dolby TVs -- Vizio's M-series Dolby monitors retail for only $750. Dolby Visual TV has reached a certain performance level, which would have required more expensive hardware implementation.
No one wants to feel like buying the wrong technology and spending their hard earned money on soon outdated equipment. Fortunately, there is no risk involved in buying HDR TVs. The vision of HDR10 and Dolby TV is positive. In the foreseeable future, if you buy a TV and support two technologies, you can't be wrong.