This chart shows the mostcommon display resolutions, with the color of each resolution type indicating the display ratio (e.g. red indicates a 4:3 ratio).

2K resolution is a generic term for display devices or content having a horizontalresolution of approximately 2,000pixels.^[1] In the movie projection industry,Digital Cinema Initiatives is the dominant standard for 2K output and defines a 2K format with a resolution of2048 × 1080.^[2][3] For television and consumer media, the dominant resolution in the same class is1920 × 1080, but in the cinema industry this is generally referred to as HD and distinguished from the various 2K cinema formats.^{[4]: 71,685}

In the cinematography industry, 2K resolution traditionally refers to a digital scan of 35 mm film with a resolution around 2000 pixels wide. Typically this is done at2048 × 1556, but the exact dimensions vary based on the aspect ratio and size of the scan area.^[5]: 714

In modern cinema, another common 2K resolution is2048 × 1080. This is the resolution of the 2K container format standardized byDCI in their Digital Cinema System Specification in 2005.^[2][3] The resolution of the encapsulated video content follows the SMPTE 428-1 standard,^{[6]: §3.2.1} which establishes the following resolutions for a 2K distribution:^[7]: 6

• 2048 × 1080 (full frame, 256∶135 or ≈1.90∶1 aspect ratio)
• 1998 × 1080 (flat crop, 1.85∶1 aspect ratio)
• 2048 × 858 (CinemaScope crop, ≈2.39∶1 aspect ratio)

However, the term2K itself is generic, was not coined by DCI, and does not refer specifically to the DCI 2K standard. Usage of the term2K predates the publication of the DCI standard.^[8][9][10] The resolution1920 × 1080 has also been referred to as a 2K resolution by other standards organizations likeNHK Science & Technology Research Laboratories andITU Radiocommunication Sector (which were involved in the standardization of1080p HDTV and4K UHDTV).^[11][12] In consumer products,2560 × 1440 (1440p) is sometimes referred to as2K,^[13] but it and similar formats are more traditionally categorized as 2.5K resolutions.^{[14][15]: 102}

• 21:9 aspect ratio

• Digital imaging
• Film and video technology

• Articles with short description
• Short description matches Wikidata