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2. 4K resolution - Wikipedia

   en.wikipedia.org/wiki/4K_resolution

   YouTube, since 2010, [63] and Vimeo allow a maximum upload resolution of 4096 × 3072 pixels (12.6 megapixels, aspect ratio 4:3). [ 64 ] [ 65 ] Vimeo's 4K content is currently limited to mostly nature documentaries and tech coverage.

3. High-definition television - Wikipedia

   en.wikipedia.org/wiki/High-definition_television

   All of these systems used interlacing and a 4:3 aspect ratio except the 240-line system which was progressive (actually described at the time by the technically correct term sequential) and the 405-line system which started as 5:4 and later changed to 4:3. The 405-line system adopted the (at that time) revolutionary idea of interlaced scanning ...

4. Technology of television - Wikipedia

   en.wikipedia.org/wiki/Technology_of_television

   The switch to digital television systems was used as an opportunity to change the standard television picture format from the old ratio of 4:3 (1.33:1) to an aspect ratio of 16:9 (approximately 1.78:1). This enables TV to get closer to the aspect ratio of modern widescreen movies, which range from 1.66

5. Ultra-high-definition television - Wikipedia

   en.wikipedia.org/wiki/Ultra-high-definition...

   On October 4, 2013, DigitalEurope announced the requirements for their UHD logo in Europe. [146] The DigitalEurope UHD logo requires that the display support a resolution of at least 3840 × 2160, a 16∶9 aspect ratio, the Rec. 709 (HDTV) color space, 8 bpc color depth, a frame rate of 24, 25, 30, 50, or 60 fps, and at least 2-channel audio.

6. Display aspect ratio - Wikipedia

   en.wikipedia.org/wiki/Display_aspect_ratio

   The display aspect ratio (DAR) is the aspect ratio of a display device and so the proportional relationship between the physical width and the height of the display. It is expressed as two numbers separated by a colon (x: y), where x corresponds to the width and y to the height. Common aspect ratios for displays, past and present, include 5:4 ...

7. 5K resolution - Wikipedia

   en.wikipedia.org/wiki/5K_resolution

   5K resolution. 5K resolution refers to display formats with a horizontal resolution of around 5,000 pixels. The most common 5K resolution is 5120 × 2880, which has an aspect ratio of 16∶9 with around 14.7 million pixels (just over seven times as many pixels as 1080p Full HD), with exactly twice the linear resolution of 1440p and four times ...

8. Fullscreen (aspect ratio) - Wikipedia

   en.wikipedia.org/wiki/Fullscreen_(aspect_ratio)

   Fullscreen (aspect ratio) The aspect ratio of 4:3. Fullscreen (or full screen) refers to the 4:3 (1. 3:1) aspect ratio of early standard television screens and computer monitors. [1] Widescreen ratios started to become more popular in the 1990s and 2000s. Film originally created in the 4:3 aspect ratio does not need to be altered for full ...

9. Aspect ratio (image) - Wikipedia

   en.wikipedia.org/wiki/Aspect_ratio_(image)

   Aspect ratio (image) The aspect ratio of an image is the ratio of its width to its height. It is expressed as two numbers separated by a colon, width:height. Common aspect ratios are 1.85:1 and 2.40:1 in cinematography, 4:3 and 16:9 in television, and 3:2 in still photography.