Quote:
Originally Posted by ProDigit
Technically, it's not a front light neither, because the light is inbetween the screen and the plastic layer, so it's in between the screen, rather than in front of it, or behind it.
Which makes both of us wrong.
I say back light, because the light is behind the touch screen.
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If you choose to get that "technical", the light comes from LEDs mounted at the bottom edge of the screen and not some mysterious light source that is between the top plastic layer and the eink layer. That "plastic layer" of which you speak is a light guide that directs the light from those LEDs through itself, and it evenly redirects some of that light inward toward the eink layer.
Because the light intentionally leaks out the back of the front plastic layer, it really is a front light (or perhaps a side light if you prefer to take into account only the LEDs and not the light guide layer).
In fact, damage to the front plastic layer can cause some light to leak out of the FRONT of that light guide layer, causing annoying light pinpoints to be all too visible.
The position of the light is relative to the active pixel layer, not the touchscreen layer. The location of the touchscreen layer has no relevance to whether the PW has a frontlight or backlight.