| passive matrix
These basic flat-panel displays are
created by laying a layer of liquid-crystal diode elements on top of a
grid of wires. By applying current to the various intersections, the
diodes can be lit to act as pixels. Passive displays simply apply current
to the diodes at a specific refresh rate to maintain an image.
Higher-quality (and, therefore, more expensive) active-matrix or TFT
displays control each diode with one or more transistors, making for
sharper, brighter pictures. |