Hello there,
ewzzy has shot the perfect example of what is wrong with the screen : see the text line "THE LEGENDARY POKÉMON CARDS..." : on the 2nd shot (k101) the first horizontal row of pixels is nearly rubbed away.
One can see it on diagonal lines too. Here is a comparison between VisualBoyAdvance and Revo K101.
View attachment 1191 VBA
View attachment 1192 K101
I circled little “imperfections” which appear regularly on the screen, all along an horizontal line. I also drew imaginary lines in line with these rows. The thing is, the eye can descry these lines when the screen scrolls. That's what I called tearing on my first post.
I tried to catch it in move but my camera seams to rub out that effect (edit: damn stabilizer). Nevertheless, here are the videos :
Hope this can help