OnePlus 7 Prepares for Better OLED Display with PWM Technology

OnePlus is experimenting with technology and adapting the latest, to offer the best experience when it comes to smarter smart-phone use.

OnePlus 7, the Shenzhen-based manufacturer, is looking into the future to offer a much-requested feature for its smartphones, which is an improvement for a dimmer screen. The current OLED screens bring pulse width modulation (PWM) to control the backlight brightness of the phone. Absolute brightness is offered with a constant current to dim the screen the current is pulsed with width modulation. This means that the dimmer screens can end up with a visible flicker because of the slower pulses.

However, OnePlus is experimenting with the technology for long as noted by CEO Pete Lau on Weibo this week. OnePlus, along with other manufacturers, is working on the alternative of DC dimming. Instead of a pulse, the current, DC dimming adjusts the direct current.

PWM has few grave drawbacks. It can cause a number of discomforts that includes migraines and headaches after long-term exposure. A number of studies claim that approximately 10% of people experience discomfort when viewing through PWM displays (while the rest are either absolutely okay or have some experience very mild discomfort). Some people suffer because of it and the flickering light that may result in other health issues as well.

While this removes the potential for flickering, it also has drawbacks, notably a small reduction in the quality of the display.

As a result of the impact on the image quality, this is likely to become an optional feature that will default to ‘off’ in the software but will be accessible for those who are looking to reduce flicker and the resulting eyestrain.