Ultra High Definition (UHD) refers to a resolution standard for digital displays and content that offers significantly higher picture quality than standard high definition (HD). UHD typically has a resolution of 3840 x 2160 pixels, which is four times the pixel count of 1080p HD. This increased pixel density allows for sharper images and more detailed visuals, making it ideal for large screens. UHD is commonly used in various media formats, including television, streaming services, and video games. Many modern TVs and monitors support UHD, providing viewers with an enhanced viewing experience. As technology advances, UHD continues to gain popularity among consumers and content creators alike.