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Has the scan frequency become something important to a smartphone?


When choosing a computer or TV screen, you often pay attention to the scanning frequency to have the smoothest experience, but in stark contrast, not many brothers are now interested in the phone or tablet with the page. The scanning frequency panel is higher than 60Hz. We often only pay attention to screen resolution, pixel density and screen size, but rarely pay attention to the screen scanning frequency. From now on, it is likely that high-frequency scanning screens will become one of the competitive advantages in the smartphone market.




Basically, the concept of frequency scans on the screen panel of smartphones and tablets is not much different from computer screen panel and TV. 60, 120, 144, 240Hz, they are all numbers that describe the number of times the screen scans every second. Of course the higher the number, the better. High-frequency screens will produce smoother images, and are also more expensive. That's why not all phones have 90 or 120Hz screens, nor does any panel manufacturer want to increase the high-frequency screen output. Plus, the high-frequency screen monitor application on smartphones is almost unavailable, in addition to playing games with higher, smoother frames.

A movie at 24 frames per second, or a clip of 60 frames per second is almost the same when projected on a screen with a scan frequency of 60Hz or 120Hz (in fact this problem is slightly more complicated than every second How many frames are there, but also involves a delay between each frame, which is rarely stable for 33.3 seconds for a 60 FPS clip, but also for video processing hardware as well).



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Back to the only almost app that the 120 or 240Hz panel does best at the present time, it's gaming. You can see the clip below of Linus Tech Tip describing the use of 60Hz screen and 240Hz PC game play to help the time from when you see the enemy appear on the screen until you reflect how to improve:

It should be said again, for both PC and smartphone, the 120 or 144Hz screen panel doesn't solve many problems if the game processing hardware does not help the frame rate exceed 60 FPS. That's why many brothers now build gaming computers, noting both the machine configuration and the high-frequency scanning screen, instead of just intentionally going to either. Similarly, smartphone makers must also make sure they cram processor chips strong enough to play Lien Quan or PUBG Mobile at frame rates that are suitable for 120Hz screens.



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Device manufacturers often take technical details to overwhelm consumers, and sometimes even use concepts to mislead others. For example, LG and Samsung 120Hz TVs have the ability to raise the movie and video scanning frequencies in very different ways, and sometimes the result is the same movie but on two screens they will not display clearly. same. Many Hollywood directors have also criticized technologies such as TruMotion (LG), Motion Rate (Samsung) and MotionFlow of Sony because they make the image of the film become blurred, do not create impressive action scenes like The original purpose of filmmakers, which filmed at 24 frames per second.



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Return to mobile devices. There are now devices like the iPad Pro with a 120Hz ProMotion screen, so the Apple Pencil strokes become smooth (the screen refreshes as quickly as every second, the picture of your drawing on the screen shows the footer. indeed, the 120Hz Razer Phone 2 is smooth for gaming, but at the moment not all Android games support 120FPS frame rates.



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Meanwhile, iPhone XS has a 120Hz touch response speed, while the screen's scan frequency is still 60Hz. Simple to understand, the screen of this phone receives up to 120 commands and fingers enter the screen every second (even though humans cannot do so quickly). Apple chose a slightly backwards solution compared to other products on the market to make the product experience satisfactory, in return, the 60Hz screen consumes less energy during use, making the battery last longer every day.



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And the OnePlus 7 Pro selects the 90Hz panel, making the menu as well as the strokes smoother and more than half (theoretically) compared to regular Android smartphones.



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Obviously, smartphone and tablet manufacturers are also looking at high-frequency screen scans as a new competitive advantage next to cameras, hardware or batteries. What about you? Have you considered the high-frequency scanning screen to be one of the criteria when choosing a mobile device?



P.W

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