Thursday, May 28, 2009

LIQUID CRYSTAL DEVICES

LIQUID CRYSTAL DEVICES (PASSIVE-MATRIX LCD)

Calculators

To glass plates each containing a light polarized at right angles to other plates

One glass plate has rows of horizontal transperant conductor and other plate with vertical conductors

Intersection of teo plates define a pixel

Polarized light is twisted so it passes through the opposite polariser

Light then reflected back to the viewer

Picture definition in refresh buffer(60frames/sec)


2 comments: