4k resolution: Although 3840 × 2160 is both

Although 3840 × 2160 is both a 4K resolution and a 2160p resolution, these terms cannot always be used interchangeably since not all 4K resolutions are 2160 pixels tall, and not all 2160p resolutions are ≈4000 pixels wide. 4K resolution simply means a screen or video that shows around four thousand pixels across the width . Think of it as packing four Full HD (1080p) screens into one, so the picture looks sharper, brighter, and far more detailed. We would like to show you a description here but the site won’t allow us. However, 4K resolution is not a single, uniform standard. There are different variations of 4K resolution , depending on the context and industry. For example, in digital cinema, 4K resolution is defined by the Digital Cinema Initiatives (DCI) as 4096 x 2160, which has an aspect ratio of 1.9:1. This is slightly wider than the 16:9 aspect ratio of most TVs and monitors, which use 3840 x 2160 as the 4K resolution which is also known as 4K UHD (Ultra High Definition), and is the most widely used ...