2k mainly refers to the resolution refers to the horizontal pixels of the screen reaches 2000 or above, generally 2560×1440, 2048×1152, etc., while 1080P can reach 1080 in the vertical resolution, generally refers to 1920×1080; 2K also has a clearer picture. The following is a detailed introduction:

1, 2K resolution refers to the screen resolution reached a level, the screen horizontal pixels reached 2000 or more, is the mainstream projection resolution of domestic digital cinema, 2K resolution has a variety, the most common theater 2K refers to 2048 ×1152; other 2048×1536 (QXGA) 2560×1600 (WQXGA), 2560×1440 (Quad HD) can also be used as a kind of 2K; 1080P can reach 1080 in vertical resolution, generally refers to Is 1920×1080;
2, due to the difference in resolution, there will be different on the screen, mainly on the same size TV, because 2K has more pixels, so the picture performance is more delicate, of course, also need to match 2K resolution Or a higher resolution source; if you just play the 1080P resolution source, it won't make much difference;
3. It is worth noting that instead of using HDMI output, there must be 1080p output. The picture does not have to support 1920×1080 to be 1080p output. As long as the horizontal scanning line exceeds 1080, it can be called 1080p. There is no strict specification, Full HD is the standard for normalizing vertical and horizontal scanning pixels, and 1080p only regulates vertical pixels (equivalent to horizontal scanning lines).
