
93-26 Displays and Recorders
93.5.2.3 Color Plasma Display Lifetime Considerations
Phosphors
fo
r
pl
asma
a
t
pa
nel
di
splays
mu
st
be tol
erant
of th
e
ha
rsh
en
vironment
pr
oduced
by th
e
pi
xel
di
scharge
. Ph
otoluminous
ph
osphor
de
gradation
me
chanisms
ar
e
at pr
esent
no
t
we
ll
un
derstood
.
Contamination of the discharge by phosphor materials is a serious concern. Discharge modeling indi-
cates that damage results principally from the accumulated uence of photon and metastable bombard-
ment,
al
though
fr
inge
el
ectric
e
lds
an
d
pr
olonged
su
rface
ch
arge
ac
cumulations
co
uld
al
so
re
sult
in io
n
bo
mbardment
[3
6]
. Mo
st
ac pl
asma
di
splays
ta
ke
ad
vantage
of Mg
O