The resolution of a fishfinder's display is what determines its ability to see fish near the bottom, separate closely spaced targets from one another, and to give an accurate picture of structure and the sea bed. Display resolution is determined in two ways: the vertical pixel (Pixels are the small dots that make up a liquid crystal display. Smaller pixels, and more of them, produce a more detailed image) count from the top to the bottom of the display, and the number of pixels per square inch.