Chinese language producer OnePlus is now releasing the ColorOS 12 public beta for the OnePlus eight Professional and OnePlus 8T. The primary function on this replace is the addition of low-light and flicker-free eye safety (DC dimming perform). Recall that after the replace of the OnePlus 8T to ColorOS 12, the DC Dimming function surprisingly disappeared. OnePlus didn’t give any purpose or clarification for its disappearance.
The present mainstream PWM dimming and DC dimming are a option to alter the display brightness. PWM dimming adjustments the display brightness by alternating on and off of the display. Why does my cellphone keep on after I alter the display brightness? That’s as a result of the on/off alternation is quick sufficient, past the vary of human eye notion. The longer the screen-off state lasts, the decrease the display brightness. Quite the opposite, the longer the screen-on time is, the brighter the display can be.
Nevertheless, totally different folks’s eyes have totally different sensitivity to the display alternately on and off. Some persons are extra delicate. When encountering a display with low-frequency PMW dimming, eye discomfort will happen which can trigger extreme dizziness and nausea.
OnePlus brings again DC Dimming
DC dimming adjustments the display brightness by growing or lowering the circuit energy, energy = voltage x present. Thus, altering the voltage or present will change the display brightness, and the dimming course of is softer. Though DC dimming can relieve the fatigue of the human eye when cell phones for a very long time, it’s extra pleasant to these customers who’re extra delicate to the low-frequency PWM dimming methodology. Nevertheless, this resolution isn’t 100% good. At low brightness, DC dimming could trigger an uneven “rag display” phenomenon. This results in lack of dynamic vary and poor coloration uniformity.
Studies from OnePlus executives declare that DC Dimming brings many new issues. This impacts the producer’s display after-sales and high quality fame.
In accordance with Oppo ColorOS engineers, Oppo’s DC dimming is totally different from different producers. It adopts the strategy of “masks dimming” + “dither smoothing”, by calling the interior Qualcomm Snapdragon platform – Snapdragon Show Engine layer mixing. Along with the clear mixing of Dim Layers, the brightness of the content material of your entire display has been successfully lowered. Nevertheless, it nonetheless retains the impact of the common DC Dimming.
As well as, Oppo continues to discover the backlight system and eventually obtains three optimum worth coefficients. This lastly solves the issues of coloration misalignment, flashing white mild, and unstable brightness values. It additionally maximizes the attention safety of the show impact.
