I just have problems in understanding the term 4K resolution in wikipedia. How many pixels does it have? And please also tell me how does 4K work for displaying better pictures. Thanks.
According to Wikipedia, 4K resolution is basically a term in the field of digital television and digital cinematography which refers to the resolution of an electronic display. It has 4096 pixels horizontally by 2160 pixels vertically. The name 4K comes from the horizontal resolution on the order of about 4000 pixels, which is roughly 4 times as high as the well-known High Definition 1080p. As you may know, pixels are used for storing picture information. The more pixels means the sharper and more vivid the pictures will look. 4K resolution (4096x2160 pixels) display will surely bring you more awesome viewing experience, no matter on the computer monitor, TV set (e.g. 4K TV/UHD TV) or cinema big screen. 4K and 4K videos are definitely trend in future. Besides, you can also convert 4K videos for playing on iPhone, iPad, Android with a 4K/8K video converter to expand the uses of 4K technology.
4K & UHD - Also referred in Wikipedia, 4K and Ultra HD (UHD) are interchangeable, though strictly speaking, they are different by resolution. 4K has 4096x2160 pixels while UHD has only 3840x2160 pixels.
4K & 8K - What is the difference between 4K and 8K? You can get more here >>