Ultra High Definition (UHD) refers to a resolution standard for digital television, video, and digital cinema. It typically has a resolution of 3840 x 2160 pixels, which is four times the pixel count of Full HD (1920 x 1080). This higher resolution provides sharper images and more detail, enhancing the viewing experience for audiences. UHD is often associated with 4K technology, which is commonly used in modern televisions and streaming services. In addition to improved resolution, UHD may also include features like High Dynamic Range (HDR), which enhances color and contrast, making images appear more vibrant and lifelike.