I wonder if you could improve perceived sharpness by adding sinc-like ringing borders around blended pixel edges, or if the average LCD pixel density is low eno

I wonder if you could improve perceived sharpness by adding sinc-like ringing borders around blended pixel edges, or if the average LCD pixel density is low enough this would produce visible artifacts. Note that this will not work for edges where one or both sides is close to full-scale black or white, since you can't produce darker than black (physically), or brighter than full-scale white (without HDR).