Samsung made a funny move last year while promoting a Samsung OLED television via an ad. The ad showed the Samsung Galaxy S23 display and S22 as harmful to the eyes, making one tired with headaches, eye strain and even seizures.
Further details on the harmful effects of Galaxy S22 and Galaxy S23 display
Although with the harmful effects of the display to users, Samsung used this to their advantage when promoting the Samsung OLED television set. Ice Universe says via a tweet “It’s very funny that Samsung Display uses a video to illustrate the harm of flicker to human eyes, and promotes that Samsung OLED screens are flicker-free (supplied to Chinese brands), but S22 Ultra and S23 Ultra are the most flicker phones. It’s so funny.”
A follow-up tweet aslo mention “Oh, by the way, the Galaxy S23 Ultra is also the most eye-damaging screen among all brands of mobile phones. Its only PWM 240Hz, which is lower than the 480Hz of the iPhone 14 Pro, and both are far inferior to Chinese mobile phones.”
PWM, or pulse-width modulation, is a technique that alternately switches diodes on and off. Phone displays are lighted up using this approach, which toggles the display on and off. Manufacturers utilize it to cut expenses, allowing equipment to be sold at cheaper prices than they would otherwise. Flickers occur too quickly for the human eye to detect, yet slower rates can cause the aforementioned eye strain, migraines, convulsions, and eye discomfort.
According to Ice Universe, the Galaxy S23 Ultra has a 240Hz PWM display. That is half the speed of the display of the iPhone 14 Pro, which has a 480Hz PWM. The Honor Magic 5 Pro’s 6.81-inch OLED panel will carry a 2160Hz PWM. The tipster adds, “Imagine that there is an electric fan in front of you. When its speed is low enough, you can see the blades of the fan turning one by one in front of your eyes. Your eyes will get tired, but after its speed becomes faster, you will not be able to see the fan blades…”
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