I was checking out the image on Amazon.com that illustrates how the new light layer works. See below:



Since light tends to fall off with distance it makes sense to design the nanoimprinted light guide layer to push more light toward the end of the layer which is supposed to be at the top of the PW. As the light travels from bottom to top and gets farther away from the LEDs it is supposed to push more light onto the screen. I wonder if this layer can be turned around, and if so, whether that would cause the dark shadow at the top of the screen? Probably not possible, but still I could see this happening in a lax manufacturing process.