What is ultra hd?

Ultra HD means ultra high definition . It is a prototype for a new digital video format and is also referred to as Ultra High Definition video (UHDV). This technology is a proposed replacement for existing high -resolution television (HDTV).

HD-resolution HD monitors currently available are also offered 1,080 lines of resolution in progressive scan format as well as 1080p video. These screens have 1,920 x 1,080 pixels and are theoretically able to display each pixel broadcast HD with the highest resolution. These sets are sometimes called "ultra HD" as a marketing term, but in fact they are part of the current HDTV standard.

TRUE Ultra HD is so named because it provides a video resolution containing 16 times as many pixels than the current HD. While HDTV uses 1,080 rows of resolution, Ultra HD contains 4,320. Used 7,680 x 4 320 pixels in the ratio of 16x9 wide -angle sides, which is approximately 33 million pixels(33Megapixels). This technology also offers improved sound quality: the 22.2 channel audio system reproduces 24 different sound channels in three vertical speakers compared to the currently available spatial sound systems that use 5 or 6 channels.

Ultra HD was developed by a Japanese public broadcasting company and a research group called NHK Science and Technical Research Laboratories. Their aim in designing is to present paintings and enough to give viewers the feeling of being part of the scene - one of the reasons why the format is four times tall and four times wide as HD. One screen created to demonstrate technology gives 400 inches (1,016 cm). This gives viewers a view of the field of view of about 100 ° compared to 30 ° on commercially available screens. Some observers even reported Vertigo during the demonstrations.

there is a numerous practical PRrounded for manufacturers who are trying to bring new format to consumers. Uncompressed video and sound recorded in Ultra HD occupy large storage spaces-3,5 terabytes for one 18-minute clip, which requires a hard disk weighing almost £ 600 (272 kg). The prototype screen can use more electricity than the whole house could be in a month. The early camera weighs more than £ 100 (45 kg).

Due to these problems, Ultra HD is likely to be used in large places like museums, and if it becomes commercially available. Since it is still in the concept phase, it will probably not be available to the public for several years. NHK has an internal goal to get on the market by 2025.