OnePlus CEO confirmed that the manufacturer is conducting tests on the implementation of a new technology that will reduce the brightness of AMOLED displays less aggressively to users' eyes. This is a problem that many manufacturers are trying to solve on their smartphones.
Currently, the brightness reduction of AMOLED displays is achieved through pulse width modulation (PWM), which in essence means that brightness is reduced through power cuts. In some cases, drastic reduction of brightness on an AMOLED screen may result in a flickering (blink) clearly visible on the screen.
This is one of the big negative points of this type of screens, which in many situations can cause great discomfort to users. In extreme cases, it may be responsible for headaches and other health problems.
OnePlus may be the first manufacturer to solve the big problem of AMOLED displays
Like other manufacturers, OnePlus is developing an alternative technology called DC dimming. This technology will come to replace the PWM by adjusting the direct current that powers the screen. But, as in most cases, it also brings some problems.
It is true that this approach will completely eliminate intermittent problems (flickering) of the screen. However, it has a negative impact on the quality of the reproduced image. For this reason, it is very likely that this option will never be implemented by default on OnePlus smartphones.
On the other hand, it is very likely that they will eventually offer this technology optionally to users who have no problem with image quality loss. Even if this technology is active, it will not affect image quality when the screen is at high brightness. So it seems like a compromise that will surely please users.
Still, Pete Lau – CEO of OnePlus – doesn't seem very convinced by this new option, at least in this initial testing phase. Still, it is possible that later this year, OnePlus users will start receiving this feature in beta versions of OxygenOS.
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