4K becomes the standard for TVs, but there are differences in standard names

4K TV is a TV with a physical screen resolution of 3840×2160 (QFHD) and can receive, decode and display video signals of corresponding resolution . The resolution of 4K TV is 4 times that of full HD (FHD.1920×1080) and about 9 times that of high definition (HD.1280×720).

All major TV manufacturers regard 4K as the focus of future development, and 4K resolution has brought new hope to the industry. Its resolution reaches 3840×2160, and the PPI of 1080p (resolution is only 1920×1080) at the same screen size is four times.

4K also has the problem of different standard names. A true 4K TV should have 8,294,400 red pixels, 8,294,400 green pixels and 8,294,400 blue pixels, totaling 24,883,200 pixels. This is called 4K2K, and this type of TV can pass the ultra-high-definition certification.

The total RGB of a pseudo 4K TV is only 8294400 pixels, and a single white pixel is inserted occasionally to replace the RGB three-pixel point, and the display effect is very different. This kind of screen is usually called 4K 1K, and it can only be called a screen that passes the 4K test image.

If a 4K display device is used to display Full HD 1080P, 4 pixels on the screen correspond to 1 pixel in the output 1080P; when displaying 720P, it is 9 pixels.

As a winner of Toutiao's Qingyun Plan and Baijiahao's Bai+ Plan, the 2019 Baidu Digital Author of the Year, the Baijiahao's Most Popular Author in the Technology Field, the 2019 Sogou Technology and Culture Author, and the 2021 Baijiahao Quarterly Influential Creator, he has won many awards, including the 2013 Sohu Best Industry Media Person, the 2015 China New Media Entrepreneurship Competition Beijing Third Place, the 2015 Guangmang Experience Award, the 2015 China New Media Entrepreneurship Competition Finals Third Place, and the 2018 Baidu Dynamic Annual Powerful Celebrity.