Definicja display cell

A rectangular region on a display device within which one or more glyphs are imaged.

Traditionally, display devices have assumed that each display cell was non-overlapping with other cells, that only one glyph was imaged into the cell, and that this single glyph was represented by a single character code element.

In contrast, Unicode assumes a many-to-many relation between character code elements and glyphs which are imaged into a display cell that may overlap other display cells.