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The resolution 3840 × 2160, sometimes referred to as 4K UHD or 4K × 2K, has a 16:9 aspect ratio and 8,294,400 pixels. It is double the size of Full HD ( 1920 × 1080 ) in both dimensions for a total of four times as many pixels, and triple the size of HD ( 1280 × 720 ) in both dimensions for a total of nine times as many pixels.
The vertical resolution is usually a multiple of 8 or 16 pixels due to most video codecs processing pixels on such sized blocks. A widescreen FHD video can be 1920 × 800 for a 12∶5 ratio or 1920 × 1040 for roughly 1.85 × 1 , for instance.
1080p progressive scan HDTV, which uses a 16:9 ratio. Some commentators also use display resolution to indicate a range of input formats that the display's input electronics will accept and often include formats greater than the screen's native grid size even though they have to be down-scaled to match the screen's parameters (e.g. accepting a 1920 × 1080 input on a display with a native 1366 ...
This is the resolution of the UHDTV1 format defined in SMPTE ST 2036–1, [15] as well as the 4K UHDTV format defined by ITU-R in Rec. 2020, [16] and is also the minimum resolution for CEA's definition of Ultra HD displays and projectors. [21]
Effectively 1/16 the total resolution (1/4 in each dimension) of "Full HD", but with the height aligned to an 8-pixel "macroblock" boundary. Common in small-screen video applications, including portable DVD players and the Sony PSP. 480×272 (131k) 480 272 130,560 ~1% narrower than 16:9 (30:17 exact) Mac Mono 9" Original Apple Macintosh display
1366×768 †, 1920×1080, 2560x1440, 3840x2160 (4K UHD) The default aspect ratio for HDTV and modern computer displays. 256:135 (1.8 962:1) 4096×2160 The Digital Cinema Initiatives standard for 4K resolution; specification created in 2005 but not widely sold until 2014–15 [8] [9] 64:27 (2. 370:1) 2560×1080, 3440×1440
As of 2016, the world uses 1080p as the mainstream HD standard. However, there is a rapid increase in media content being released in 4K and even 5K resolution. Online streaming services such as Netflix and Amazon Prime Video launched videos in 4K resolution in 2014 [3] and are actively expanding their collection of videos in 4K resolution. As ...
x (width) y (height) Pixels (Mpx) Aspect ratio Proportion difference of total pixels Typical sizes (inch) Non-wide version Note Name WXGA WXGA+ WSXGA+