Quote:
Originally Posted by DNSB
An E-ink ereader can not have a backlight given that the display is opaque. Which leads to the fun of trying to produce a front light and diffuser that gives even lighting over the whole screen.
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Quote:
Originally Posted by 2scre
Is the brightness of the front light controllable like you can on phones? In Androids you can even use 3rd party apps to further control the light (bluelight blocking apps), so wouldn't it be better to use an Android with no backlight (OLED screens) with more brightness control options than E-reader?
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Yes, the frontlight is controllable. On my Kobos with the colour temperature control, I can select the basic brightness and set the colour temperature either manually or by allowing the ereader to set the colour temperature based on time. My Aura One has a sensor to allow automatically setting the brightness based on ambient light but I found it more annoying than useful -- move your hand so you cast a shadow on the sensor and the screen brightness would change. Personally, I find the colour temperature control to be mostly useless unless I want to set it full to the warm end to give me the feeling of reading by candlelight.
I can't see any advantage to using a Android device with a third party app to control colour temperature compared to having that control built in to my ereader (and iOS devices though I seldom use Night Shift).
Given the whinging about the Kobo Forma and it's 1KHz PWM frequency, why would you recommend an OLED screen where 200-250Hz PWM frequencies are common?