Video resolution is the pixel count forming an image, often shown as width by height, like 1920×1080, where 1920 is width and 1080 is height.
This was the prevalent resolution in older TVs and content. SD resolutions include 480p (720×480 pixels) for DVDs and 576p (720×576 pixels) for PAL format.
HD brought a significant improvement in visual quality. Common HD resolutions are 720p (1280×720 pixels) and 1080p (1920×1080 pixels).
2K, also known as Quad HD or QHD, is a video resolution commonly used in displays, smartphones, and other digital devices. It refers to a resolution of approximately 2560×1440 pixels.
4K resolution, also known as Ultra HD, offers four times the pixel count of 1080p, with resolutions like 3840×2160 pixels. It’s popular for high-end TVs, streaming services, and video production.
The pinnacle of resolution, 8K boasts around 7680×4320 pixels. While it’s not as mainstream, it’s utilized in specialized applications like digital cinemas and advanced video production.
Video resolution directly impacts the visual experience of viewers. Higher resolutions provide greater detail, making images appear more lifelike and immersive.