Gas Plasma Displays
How does a plasma display work?
Plasma monitors work
much like CRT monitors, but instead of using a single CRT surface
coated with phosphors, they use a flat, lightweight surface covered
with a matrix of tiny glass bubbles, each containing the gas-like
substance, plasma, and having a phosphor coating. Each of the
"pixels" in this matrix is actually comprised of three sub-pixels,
corresponding to the colors red, green and blue.
a CRT monitor, an electron beam is fired from the rear of the
long picture tube, hitting the phosphors on the front surface
which makes them glow. Complex circuitry and high voltage deflections
coils are required to aim, focus and move the beam to create an
Plasma displays eliminate
the need for high voltage deflection coils and the long neck of
a CRT. In a flat plasma monitor, a digitally controlled electric
current flows through the appropriate parts of the matrix, causing
the plasma inside the bubbles to give off ultraviolet rays. These
rays in turn cause the bubbles' phosphor coatings to glow the
display diagram, courtesy of Fujitsu General America, Inc.