Quote:
Originally Posted by HarryT
Your eyes don't care whether the photons they receive are emitted by a screen or reflected from it;
|
I seriously doubt that's true. (At least in any real world scenario where reflected light pattern and directions differ from a direct light.)
Quote:
Originally Posted by HarryT
it's nonsense to say that LCD screens are "inherently" more liable to cause eyestrain than eInk screens, IF the LCD screen can be set at an appropriate brightness level.
|
The problem is that you can't achieve the text contrast needed on an LCD screen on a low light level, which can cause eyestrain. Also, the contrast between a lit screen and dark surroundings is higher than with a non-lit screen and an external light, further causing strain.
And again, I doubt it is true a light shining into your eyes or reflecting towards it are the same thing. I guess the jury is out on if backlight or frontlight are any different in this regard, but a top-down light does act differently.