540p

540p refers to a video display resolution of 960x540 pixels. The "p" stands for progressive scan, meaning that the image is displayed in a single pass, as opposed to interlaced (i) video which displays odd and even lines separately. This results in a smoother and more stable image. 540p is a standard definition resolution, often considered a step up from lower resolutions like 480p but not as high as high definition (HD) resolutions such as 720p or 1080p.

Historically, 540p was commonly used in early digital television broadcasts, mobile devices, and online video streaming services. It offered a good balance between image quality and bandwidth requirements, making it suitable for internet connections that were not yet capable of supporting higher resolutions smoothly. While its prominence has decreased with the widespread adoption of HD and even 4K resolutions, 540p can still be found in some applications where lower bandwidth or device limitations are a factor. For instance, some video platforms may offer 540p as an option for users with slower internet connections or on older devices. The aspect ratio for 540p is typically 16:9.