Yeah but you need some light in order to read, and most lights are LED nowadays. That said, I have a Philips wake-up light that has a very pleasant yellow and d

Yeah but you need some light in order to read, and most lights are LED nowadays. That said, I have a Philips wake-up light that has a very pleasant yellow and dimmable light. I wonder what its frequency is though, some cheaper leds don't blink fast enough and especially when I'm tired it's noticeable. I just checked it with the slow-mo camera of my phone, my overhead lamps have a visible flickering, but the wake-up light has an interesting shuttering / interlacing effect, when I up the brightness (which increases brightness and shifts the light more to white) it seems to alternate between a white and orange light source. Might be multiple bulbs interlacing. Anyway, LED backlight shouldn't be a problem if it's not white light. Best to have some additional light in the room though, to reduce contrast / eye strain between the screen and the background.