You are confusing colour temperature with emitting blue light.
Natural sunlight at noon in a blue sky is >8000k. your screen will be 5600k or there abouts. The reason why they look blue is because you are normally inside, with low colour temperature domestic lights. taking your device outside at noon on a clear sky day will not make your screen look blue. It'll make it look very dark.
> Computer screens have no option to not emit blue light, all their light is a tinted blue hue.
I mean thats not really true. Yes an "off" LCD will leak light, but it wont be anywhere near as much blue light as "low" colour temperature white screen. There are standards for this sort of thing to guarantee colour correctness. HDRI LCDs should be almost completely dark when black.
but your main point; no they shouldn't be tinted blue. They should assuming they are not utterly rubbish be emitting a decent range of of spectra. The filter efficacy of the R,G and B pixels is pretty good. Its not perfect, but its way below anything that we can meaningfully detect with our eyes. Especially as eyes are not absolute sensors.
Natural sunlight at noon in a blue sky is >8000k. your screen will be 5600k or there abouts. The reason why they look blue is because you are normally inside, with low colour temperature domestic lights. taking your device outside at noon on a clear sky day will not make your screen look blue. It'll make it look very dark.
> Computer screens have no option to not emit blue light, all their light is a tinted blue hue.
I mean thats not really true. Yes an "off" LCD will leak light, but it wont be anywhere near as much blue light as "low" colour temperature white screen. There are standards for this sort of thing to guarantee colour correctness. HDRI LCDs should be almost completely dark when black.
but your main point; no they shouldn't be tinted blue. They should assuming they are not utterly rubbish be emitting a decent range of of spectra. The filter efficacy of the R,G and B pixels is pretty good. Its not perfect, but its way below anything that we can meaningfully detect with our eyes. Especially as eyes are not absolute sensors.