page_title: Ultra-high-definition television
section_title: 2001–2005
hierarchical_section_title: Ultra-high-definition television / History / 2001–2005
caption_attribution_description: Deutsch: UHD Kamera NHKEnglish: A protype NHK UHDTV camera
context_page_description: Ultra-high-definition television today includes 4K UHD and 8K UHD, which are two digital video formats with an aspect ratio of 16:9. These were first proposed by NHK Science & Technology Research Laboratories and later defined and approved by the International Telecommunication Union. It is a digital television standard, and the successor to high-definition television, which in turn was the successor to standard-definition television.
  The Consumer Electronics Association announced on October 17, 2012, that "Ultra High Definition", or "Ultra HD", would be used for displays that have an aspect ratio of 16:9 or wider and at least one digital input capable of carrying and presenting native video at a minimum resolution of 3840×2160 pixels. In 2015, the Ultra HD Forum was created to bring together the end-to-end video production ecosystem to ensure interoperability and produce industry guidelines so that adoption of ultra-high-definition television could accelerate. From just 30 in Q3 2015, the forum published a list up to 55 commercial services available around the world offering 4K resolution.
context_section_description: The first displays capable of displaying 4K content appeared in 2001, as the IBM T220/T221 LCD monitors.
  NHK researchers built a UHDTV prototype which they demonstrated in 2003. They used an array of 16 HDTV recorders with a total capacity of almost 3.5 TB that could capture up to 18 minutes of test footage. The camera itself was built with four 2.5 inch (64 mm) CCDs, each with a resolution of only 3840×2048. Using two CCDs for green and one each for red and blue, they then used a spatial pixel offset method to bring it to 7680×4320.  Subsequently, an improved and more compact system was built using CMOS image sensor technology and the CMOS image sensor system was demonstrated at Expo 2005, Aichi, Japan, the NAB 2006 and NAB 2007 conferences, Las Vegas, at IBC 2006 and IBC 2008, Amsterdam, Netherlands, and CES 2009. A review of the NAB 2006 demo was published in a Broadcast Engineering e-newsletter. Individuals at NHK and elsewhere projected that the timeframe for UHDTV to be available in domestic homes varied between 2015 and 2020 but Japan was to get it in the 2016 time frame.
caption: Prototype camera head (2006)
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