
93-21Plasma-Driven Flat Panel Displays
the electrodes for the pixel of interest without modifying the state of adjacent pixels. A more detailed
discussion of ac pixel addressing can be found in Refs. [4,47].
Gray scale is achieved for dc or ac plasma displays either by modulation of the discharge current or
by du
ty
cy
cle
mo
dulation
wi
th
x
ed
cu
rrent
. Mo
dulating
th
e
ap
plied
vo
ltage
am
plitude
to va
ry
th
e
di
s-
charge
cu
rrent
is no
t
wi
dely
us
ed
be
cause
of pr
actical
li
mitations
in e
ectively
co
ntrolling
th
e
no
nlinear
re
sponse
of th
e
di
scharge
cu
rrent
. Ho
wever,
du
ty
cy
cle
mo
dulation
is a vi
able
te
chnique
bo
th
fo
r
pu
lse
me
mory–driven
dc di
splays
an
d