3D, 4K, OLED, curved screens. The TV techniques follow each other rapidly and now HDR presents itself. HDR should provide more realistic images.
Have you a 4K television at home? Even with an OLED screen? Or you find an HD set time being fine? TV spare you might not be as fast as a smartphone, but developments in the TV area in recent years go pretty hard. The following technology is already at the door. HDR
What is HDR
HDR stands for high dynamic range and briefly means that it? contrast huge jacked can be. It should also lead to more natural colors. No longer looks the glare of the sun on the environment as a white spot, but you can continue to distinguish objects in the light. A sunset is much less bright, but looks more atmospheric because of the blue sky becomes clearer in orange and yellow.
High dynamic range is very important in how we perceive images. HDR is not about more pixels (though it is mainly 4K TVs that support HDR technology), in terms of brightness and vivid colors. What you see on your current TV seems in comparison with HDR images on a compatible TV suddenly a lot duller.
HDR on TV vs. HDR on photos
The term HDR you might know your smartphone camera, but that is not the same as high dynamic range on the television. The difference is that HDR on photos consists of several plates with different exposure, which are combined via software. This creates a picture that mimics HDR. On TV, it’s no trick, since colors and contrasts have a greater range really because they originally contained so. In this way, it provides a more realistic and better picture than what you now ‘normal’ looks high-definition TVs.
Brightness
Most TVs currently on the market, a maximum brightness of about 400 nits. That looks pretty dull when compared with HDR, which can reach a brightness of 1,000 nits. In addition, there are new TVs with HDR also more colors available than can handle the earlier TV sets.
Televisions without HDR send 8-bit signals, while HDR-TV’s 10-bit signals. That equates to 64 times more color. Say something like image of dark blue goes pale, then that transition looks in an HDR TV much more gradually from. Even better is to discern what is happening in dark images without being a black haze. Compare it with your own eyes that adapt less well lit environments, so suddenly you can see a lot better.
How do you recognize HDR TVs
Although HDR also full- High-definition televisions constitutes an improvement, there appears particularly 4K TVs (ultra-hD) with the technology. The UHD Alliance, which consists of a large number of companies, including Samsung, LG, Sony, Panasonic, Netflix, Dolby and Disney, have devised a standard for HDR. All devices that meet the criteria get the label ‘Ultra HD Premium’.
But what are those requirements then? That remains a bit tricky and technical, because in terms of nits seem manufacturers are themselves not quite over it. One calls a picture of 450 nits though HDR, the other keeps it at 1000 nits. Also is there to differentiate back into default in versions of HDR. For example, a number of manufacturers for HDR Dolby Vision chooses TVs and a number of alternative standard HDR 10.
In any case, it is clear that an Ultra HD Premium TV at least 4K resolution of 3840 by 2160 pixels should have and the 10-bit color signal must be able to receive and process. In addition, a premium UHD TV is 90 percent of the P3 display colors. That is a particular range of colors that the TV then.
Now we offer …
On an Ultra HD Premium television you obviously not enough. There must be available content to view HDR images. Films that were just remastered for 4K need to improve again for HDR. So it is now: studios make movies and series in high quality, with lots of color and contrast. However, because non-HDR TVs have too little nits and scope, the movie files need to be compressed, so that it loses quality. Then the quality is through the TV scaled back to make the best of it, but then lost there are already details.
This year, the first 4K UHD movies with HDR on Blu-ray. Companies like Warner Bros and Sony come up with dozens of films this year up to work with the format. Streaming Services are not left behind. Netflix is streaming the series Daredevil and Marco Polo already in Dolby Vision, this spring is that HDR 10 in.
During the CES in January 2016 said Product Development Manager Neil Hunt Netflix to 4K for the time being is the highest resolution that Netflix videos will offer. “We expect a lot more HDR than 4K. The quality of our videos has a normal full HD TV with HDR better than a 4K TV without HDR.” You do need to have a TV that supports HDR.
Amazon last year was the first HDR streams offered for Prime members from its Instant Video service. At CES also announced YouTube to offer to HDR videos. However, it takes a while before it really a big HDR offer.
HDR is the future
The focus in recent years was with TV makers in more pixels, but one point the difference is hardly to observe. More importantly, better pixels and nicer pictures. And that we get with HDR: more light, better colors and higher contrast. The TVs are now large and sharp enough, with the advent of HDR they are also less faded and the picture looks natural. As with 4K is just waiting for more content.
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