Is it really useful for TV technology to move towards mobile 4K screens on mobile phones?
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The Mobile World Congress MWC2017, which just concluded in Barcelona, once again focused the attention of consumers around the world on mobile devices. Various top mobile devices were unveiled one after another, and mobile phones were the focus of everyone's attention. The top configurations and high-end parameters of the latest flagship models of various brands made consumers "feel impressive". Among them, the most prominent one is probably Sony's flagship mobile phone Xperia XZ Prenium, which once again returned to the 4K screen. Friends who follow Sony may know that Sony can be said to be the most loyal promoter of "4K". Many of its product lines are entering the 4K field, from 4K cameras, to 4K TVs, 4K monitors, to 4K mobile phones, etc. Without exception, we can all feel Sony's optimism about the prospects of 4K. Sony had previously tried the water in the field of 4K mobile phones, but because the concept of "4K mobile phones" was too avant-garde at the time, it was eventually "cut in half". This return to the 4K screen has made many users who believe in "Sony's law" excited, and coupled with other high-end parameters, it also makes the parameter party laugh. In fact, at this stage, is 4K mobile phone useful? It is still controversial in the industry. 4K displays about 4 times the content of full HD Before analyzing this issue, let's first understand what 4K is? The most standard 4K is 4096*2160 ultra-high-definition resolution. In addition, 4K has many standard specifications. In theory, a full HD screen can display 2.07 million pixels, while a 4K ultra-high-definition screen can display 8.84 million pixels. The content displayed on a 4K resolution screen is close to 4 times that of a 1080P full HD screen. In addition to the significant increase in resolution, 4K screens also have advantages in color. The technical standards for standard definition and high definition are 8 bits or 10 bits, that is, 256 or 1024 grayscales, while 4K images can reach 10 bits to 12 bits, 1024 or 4096 grayscales, which provides support for displaying richer colors. The evolution of screen resolution is an inevitable trend in the development and change of display devices. The evolution from 720P to 1080P has obviously improved the range and delicacy of the displayed picture. 2K can also improve the quality of the picture to a certain extent, which is the mainstream development direction in the future. However, is it really necessary for consumers to increase the resolution to 4K, 8K, or even 10K or above, especially on mobile phones? 4K products are not just needed at this stage . 4K first appeared in the field of televisions, and then gradually entered the field of monitors. The higher the resolution, the greater the PPI value, and the clearer and more delicate the picture quality. But it has to be said that 4K does not bring people such a good experience as imagined. Display screens below 27 inches are not suitable for 4K resolution at all. The ultra-high pixel density will make the pictures squeezed together. On such a small screen as a mobile phone, the ultra-high PPI (pixel density) is generally unbearable for the user's eyes. In addition, in order to make the 4K screen play the "4K" effect, 4K resources are needed. At present, 4K content in the market is still relatively scarce, and full HD is still the main one. Moreover, taking video as an example, the memory required for 4K video is much larger than that for full HD video, which has a relatively high memory requirement for mobile devices. Therefore, the development of 4K technology still requires the joint efforts of the entire upstream and downstream industry chain. At a time when content resources are still dominated by 1080P full HD, 2K is expected to become the mainstream, and 4K may be the future development direction, but for consumers, 4K products at this stage are not just needed. They exist more as a "gimmick" for merchants to promote and a means for merchants to demonstrate their brand strength. Consumers should still be clear about this when they pay attention to 4K mobile phones. 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. |
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