WordNet records no synonym and no antonym for passive matrix display. It is the only member of its synset, which is common for technical, taxonomic and single-sense vocabulary — there is no other English word that means the same thing. The broader and narrower terms below are the useful relations in that case.
Counts are distinct word forms across every sense. A synonym that appears under three senses is counted once here and shown three times below, under each sense it belongs to.
a type of LCD display used for some portable computers; parallel wires run both vertically and horizontally and pixels are turned on when the wires intersecting at that pixel are both energized
“passive matrix displays are generally inferior to active matrix displays”
Synonyms, antonyms and the broader and narrower relations for passive matrix display come from Princeton University’s WordNet. Full sources and licences.