1440p is a family of video display resolutions that have a resolution of 1440 pixels on one side. In a display with a landscape orientation, 1440p refers to the vertical resolution. The p stands for progressive scan, i.e. non-interlaced. The 1440 pixel vertical resolution is double the vertical resolution of 720p, and one-third more than 1080p. QHD or WQHD is the designation for a commonly used display resolution of 2560 × 1440 pixels in a 16:9 aspect ratio. As a graphics display resolution between 1080p and 4K, Quad HD is often used in smartphone displays, and for computer and console gaming.