Difference between UHD and HD

Key difference: HD and Full HD are formats used for broadcasting image and video content on various multimedia devices. A significant difference between the both would be their respective resolutions.

High Definition or HD, as it is popularly known, has come to define the viewing experiences of an average television viewer. Simply put, any video image which has more than 480 horizontal lines (America) or 576 lines (Europe) is deemed to be an HD or a High Definition image. An HD image presents its users with a crystal clear viewing experience, made possible by its resolution of 1280 x 720 pixels in a 16:9 aspect ratio. Along with providing a true-to-life expression to its viewer, HD also eliminates the distortion of images, by making them crisper and tighter as compared to the normal video images.

High definition technology has set new benchmarks in the film, television, internet and gaming industries alike. More and more film crews, directors, producers, etc. are investing in this technology to present the viewers with a surreal viewing experience. Trends acquired from the gaming industry show a clear inclination of the gamers towards the HD enabled gaming consoles and games. HD is all about an immersive viewing experience, which has been showcased by the sheer demand of this technology from people all over the world.

HD has also served to bring to the fore, background technical information of broadcasting such as pixels, aspect ratio, et al. Information of this kind has made consumers more aware and knowledgeable about technology, and helped them stay at pace with its constant innovations. Further, it has helped the consumers while buying electronic products which are purely marketed by using technical terms such as HD, HD ready, etc. Reasons like these have made HD popular among the masses and led it to branch out as full HD, qHD, QHD, UHD, etc.

UHD, Ultra HD, Super Hi-Vision, 4K, 8K, and etc., all refer to the format known as Ultra High Definition. This format is believed to be the highest and purest form of viewing experience possible. Developed by NHK (Nippon Hōsō Kyōkai), the Japanese public broadcasting network, UHD carries a minimum resolution of 3840 x 2160 pixels, in an aspect ratio of 16:9, which is applicable only for UHD’s 4K variant. Its 8K variant measures an astonishing 7680 x 4320 pixels in a 16:9 aspect ratio, in resolution.

The 4K variant of UHD is nearly equivalent to four times the full HD resolution of 1080p. Whereas the 8k variant of UHD is astoundingly sixteen times the full HD format. This measurement is good enough to match up to an IMAX film resolution. There are many products being marketed in the name of UHD, among which the UHDTV is very prominent. Some of the features promised by a UHDTV are unmatched picture quality, bright and vivid imagery, even horizontal and vertical distribution of screen resolution, along with elimination of viewing hazards like image blurring and loss of detail, etc. In all, the UHD format promises to be one for the future.

Comparison between UHD and HD:

 

UHD

HD

Abbreviated from

Ultra High Definition

High Definition

Resolution

  • 3840 x 2160 (4K)
  • 7680 x 4320 (8K)
  • 1280 x 720 (Normal HD)
  • 1920 x 1080 (Full HD)

Alternate resolutions

4K, 8K

720p, 1080i, 1080p

Types

N/A

FHD, qHD, QHD, UHD

Mainly used in

TVs, DVDs, etc.

TVs, DVDs, games, cameras, phones, tablets, etc.

Image Courtesy: everystevejobsvideo.com, whattalking.com

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