Browse Definitions :
Definition

Ultra High-Definition TV (UHDTV)

Contributor(s): Stan Gibilisco

Ultra-high-definition (UHD) television, also abbreviated UHDTV, is a digital television display format in which the horizontal screen resolution is on the order of 4000 pixels (4K UHD) or 8000 pixels (8K UHD).

Technically, a 4K UHD display has 3840 pixels horizontally and 2160 pixels vertically for a total of 8,294,400 pixels or 8.3 megapixels. An 8K UHD display has 7680 pixels horizontally and 4320 pixels vertically for a total of 33,177,600 pixels or 33.2 megapixels. Therefore, 4K UHDTV has roughly four times as many pixels as conventional HDTV (high-definition television), and 8K UHDTV has roughly 16 times as many pixels as conventional HDTV.

According to the Consumer Electronics Association, a display must have at least one digital input with a native (design) resolution of 3840 by 2160 pixels, along with an aspect ratio of at least 16:9, in order to qualify as UHD. Both the 4K and 8K UHD specifications described above scale precisely from the most common HDTV formats, avoiding image blurring and consequent loss of detail that can occur when differing screen resolutions fail to evenly divide horizontally or vertically.

This was last updated in January 2013

Continue Reading About Ultra High-Definition TV (UHDTV)

Join the conversation

2 comments

Send me notifications when other members comment.

Please create a username to comment.

UHD coming to a TV near you, just not soon
http://www.globalsources.com/NEWS/UHD-coming-to-TV-just-not-soon-012913.html

Cancel
The sales of UHDTVs seem to be on the rise:
http://4ktvmag.com/demand-for-4k-uhd-smart-tvs-rises-in-second-quarter/
Cancel

-ADS BY GOOGLE

File Extensions and File Formats

Powered by:

SearchCompliance

  • PCI DSS (Payment Card Industry Data Security Standard)

    The Payment Card Industry Data Security Standard (PCI DSS) is a widely accepted set of policies and procedures intended to ...

  • risk management

    Risk management is the process of identifying, assessing and controlling threats to an organization's capital and earnings.

  • compliance framework

    A compliance framework is a structured set of guidelines that details an organization's processes for maintaining accordance with...

SearchSecurity

  • DNS over HTTPS (DoH)

    DNS over HTTPS (DoH) is a relatively new protocol that encrypts domain name system traffic by passing DNS queries through a ...

  • integrated risk management (IRM)

    Integrated risk management (IRM) is an approach to risk management that uses a set of practices and processes to improve an ...

  • MITRE ATT&CK framework

    The MITRE ATT&CK (pronounced 'miter attack') framework is a free, globally accessible service that provides comprehensive and ...

SearchHealthIT

  • telemedicine (telehealth)

    Telemedicine is the remote delivery of healthcare services, such as health assessments or consultations, over the ...

  • Project Nightingale

    Project Nightingale is a controversial partnership between Google and Ascension, the second largest health system in the United ...

  • medical practice management (MPM) software

    Medical practice management (MPM) software is a collection of computerized services used by healthcare professionals and ...

SearchDisasterRecovery

SearchStorage

  • M.2 SSD

    An M.2 SSD is a solid-state drive (SSD) that conforms to a computer industry specification and is used in internally mounted ...

  • kilobyte (KB or Kbyte)

    A kilobyte (KB or Kbyte) is a unit of measurement for computer memory or data storage used by mathematics and computer science ...

  • virtual memory

    Virtual memory is a memory management capability of an operating system (OS) that uses hardware and software to allow a computer ...

Close