Quote:
Originally Posted by TheRealJohnAdams
My original question was not worded as well as it might have been. I understand (in a general sense) how lit eInk works. IIRC, the Kobo Forma has 17 LEDs or something like that. My intuition was that the LEDs light different parts of the screen, probably with some overlap. If that's false, then obviously I am out of luck.
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Oh, I see. I very much doubt that the LEDs have individual drivers. I expect that they're all connected to one power source, either in parallel or series. Either way, you won't be able to adjust the brightness of individual LEDs.
I would expect that the light guide layer is more likely to be the cause of any brightness variation on the screen.