4K resolution is 4096×2160 pixels.

3840 also belongs to the 4K resolution range, such as FullAperture4K’s 4096×3112, Academy4K’s 3656×2664, and UHDTV standard 3840×2160, etc.

4K resolution means that the pixel value per row in the horizontal direction reaches or approaches 4096. In most cases, it specifically refers to 4096×2160 resolution.

Note:

Compared with the so-called high-definition TV (1080P, 1920×1080 resolution) we watch at home or the 2k resolution screen of the traditional digital cinema (2048×1080 resolution) Different, it has an ultra-fine picture with 4096×2160 resolution.

The image is clear and the resolution is four times that of 2K projectors and HDTVs. At this resolution, the audience can see every detail and every close-up. Typically using binary arithmetic, the size of a digital image is described by the pixels that make up the image.

Due to the large number of pixels that make up a digital image, K. 2＾10=1024 is expressed, so 1K=2＾10=1024, 2k=2＾11=2048, 4K=2＾12=4096.