passive matrix display

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Related to passive matrix display: active matrix display

passive matrix display

A type of liquid crystal display which relies on persistence to maintain the state of each display element (pixel) between refresh scans. The resolution of such displays is limited by the ratio between the time to set a pixel and the time it takes to fade.

Contrast active matrix display.
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passive matrix

A display technology that is used for graphics-based screens (a matrix of rows and columns). Using one transistor for each row and one for each column, passive matrix screens are addressed one row at a time for each electronic frame. They are not as sharp and have less contrast than active matrix screens, and they suffer from the "submarining" effect, in which the cursor disappears when moved rapidly.

Passive Matrix LCDs
Passive matrix LCD screens typically contain no more than 240 lines of resolution. They were used in the first LCD screens on laptops by addressing two 240-line modules simultaneously to make a 480-line screen. For more details about passive and active matrix LCDs, see LCD types. Contrast with active matrix.
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