
93-16 Displays and Recorders
always o, while for V
a
= 275 V the pixel is always on. For a line resistance of 500 kΩ, the bimodal opera-
tion
an
d
me
mory
of th
e
dc pi
xel
at V = 22
5
V is ev
ident
in th
e
g
ure
. If an ap
plied
vo
ltage
of 22
5V
is
ap
proached
fr
om
th
e
lo
w-voltage
di
rection,
th
e
pi
xel
re
mains
o. If
,
on th
e
ot
her
ha
nd,
a la
rge
vo
ltage
is
ap
plied
an
d
su
bsequently
lo
wered
to V
a
= 225 V, then the pixel will be in an on state. Note that the region
wh
ere
th
e
22
5
V/
500
kΩ lo
ad-line
in
tersects
th
e
ne
gative
re
sistance
po
rtion
of th
e
I–
V
ch
aracteristic
is
un
stable
. e pi
xel
di
scharge
wi
ll
qu
ickly
tr
ansition
to ei
ther
th
e
st
able
on or st
able
o ...