Quote:
Originally Posted by Faeryink
@E-inkFuture:
I spent a few hours again with the Nova's front light turned off after a break and I can manage maybe an hour or two. I realised I had to turn both cold and warm lights off (the cold light was on 1, and I thought both were turned off).
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I have not seen yet an e-ink comfortable to read with the front light turned on. The front light is OKeyish but as a matter of fact I find an OLED screen less tiring than e-ink with front light.
Nonetheless I'd like to give you a hint to try the front light once again but set to the maximum. Most laptop / tablet screens exhibit the same problem this days - backlight PWM. The backlit does not dim but is throttled with a high frequency. Instead of being ON all the time, the light goes ON and OFF within a short time. The higher the pulse frequency the better. For example in 10 ms time, one screen may emit light for 3 ms then stay off for 7 ms, whereas other screen may emit light for 1 ms, stay off for 2 ms, emit light for 1 ms, off 2 ms, on 1 ms, off 2 ms. In the end both emit the same average amount of light but the second could be perceived better for the eyes. Back in the days, in the CRT TVs a tiny very bright dot ( 10th times more bright than the average screen brightness) was traversing the screen line by line to make the picture. The speed of the dot was hight enough so you couldn't tell with a naked eye that there's one dot travelling through the screen but still when the speed of the dot doubled going from 60Hz to 120Hz in CRT computer screens most people immediately noticed better eye comfort. These days most laptops do severe backlit PWM when the brightness is less than 70%.