Liliputing: Say hello to a 6 inch, 3840 x 2160 pixel display
2160p resolution, often referred to as Ultra High Definition or UHD denotes a display resolution of 3840 pixels horizontally by 2160 pixels vertically.
The term "2160p" could be applied to any format with a height of 2160 pixels, but it is most commonly used in reference to the 4K UHDTV resolution of 3840 × 2160 due to its association with the well-known 720p and 1080p HDTV formats.
Projectors are a little more fiddly when it comes to the resolution quality, and currently the highest they can usually go is 2160p (the 3840 x 2160 pixels resolution).
2160p resolution, often used interchangeably with 4K, refers to a video display resolution with 2160 lines of vertical resolution. This resolution is typically associated with 3840 x 2160 pixels, offering a significant leap in detail and image quality over 1080p Full HD.
The 2160p refers to the resolution of 3840 × 2160 pixels or the number of vertical lines in the video frame. This resolution provides an extremely sharp and detailed image compared to low-resolution formats.