Of all at the Consumer Electronics Show demonstrated technologies for the TV, High Dynamic Range (HDR) is one of the most exciting. Last year it was mentioned a few times, this year there are several companies that make products and have seen content for 2015.
HDR in a nutshell
HDR is a promising improvement the image quality. The simplest description might be: brighter whites and darker blacks simultaneously. But it goes beyond that.
Do you want to make a drawing and you have ten pencils: black, white and eight gray ranging from dark gray to white-gray. You can draw something, such as a landscape, which other people can recognize what it is.
But what if you have hundreds of pencils? Black, as well as black, as well as as well as black, dark dark gray, dark gray and so on until you are in white. With many more shades you can make a much more realistic picture, is not it? Now add color. Instead of a handful of colors, you have thousands. Then you can really make something beautiful.
In fact, that HDR. A wider range of light for your television to draw a better picture for you. But HDR is also about more clarity, so that the bright areas of your image are really bright.
Future
This year, we have seen that there are big steps are put towards a HDR future. Several manufacturers talk about HDR in their televisions and – perhaps even more interesting, Dolby and Netflix talk about HDR content
What are you after all with a TV that supports HDR, if the content is not adapted. . Thanks to the significant higher contrast ratio the colors also come in regular content much more to life, but if the content itself is included in HDR and broadcast, you get a more realistic picture.
Dolby and Warner Brothers have the first three HDR films announced: Edge of Tomorrow , The Lego Movie and Into The Storm . The films do not appear on DVD or BluRay, but will soon be available via streaming on TVs with built-in Dolby Vision.
Netflix is working with LG Electronics and Sony to deliver 4K HDR content to HDTVs of those companies . There are no further details are known yet, but Netflix seems just as interested in HDR as it was earlier in 4K.
Manufacturers
LG showed at CES a prototype HDR OLED TV. This is particularly exciting because OLED screens have a naturally high contrast ratio.
The Japanese Sony has two new models with HDR. These can be found in the strong X930C / X940C series. The X940C 75-inch uses the X-tended Dynamic Range Pro , while X930C 65-inch of the X-tended Dynamic Range using.
The 85-inch L85H9500A TCL features Dolby Vision. This model is badly limited access in China and Southeast Asia.
Samsung rolls the HDR technology in combination with more techniques to improve the image quality. This happens in the SUHD TVs. Although it is not specifically HDR, the JS9500 has more than double the amount of the average brightness LCD display.
Panasonic calls it no HDR, but the Dynamic Range Remaster sitting in his CX850 series. The technology is described as a “dramatic improvement of the image in the field of light. By restoring omitted information is not only improved the clarity, but also reverse the original colors back. “
For bandied
It all sounds well and good, but still have We have some questions and concerns. It is possible (even obvious) that the term HDR in the short term only and will be used inappropriately by manufacturers. How long will it take for companies their TVs with just the local dimming go labeling as HDR? It would be unfortunate if high dynamic range will be just as useless term as a contrast ratio.
The question is also how many HDR content appears. Being only “metadata”, it would not be difficult to add the data on a disc. The content, however, must be HDR before being put on the disc, there is the challenge.
Television versus photography
One last thing. Perhaps you are familiar with HDR photography, the hyper-realistic technique that has gained popularity in recent years.
This is not the same as HDR in televisions. HDR photography uses image manipulation and multiple exposures to you in one image both sides dark (shadow) to show as bright spots. Basically it is no more than combining multiple photos, what best gives a nice effect. But the range remains the same. With HDR in televisions or it is an extended range. In this way, the highlights are really bright and the shadows really dark. It looks more like what you perceive eyes.
No comments:
Post a Comment