<s>
A	O
fourteen-segment	B-General_Concept
display	I-General_Concept
(	O
FSD	O
)	O
(	O
sometimes	O
referred	O
to	O
as	O
a	O
starburst	B-General_Concept
display	I-General_Concept
or	O
Union	B-General_Concept
Jack	I-General_Concept
display	I-General_Concept
)	O
is	O
a	O
type	O
of	O
display	O
based	O
on	O
14segments	O
that	O
can	O
be	O
turned	O
on	O
or	O
off	O
to	O
produce	O
letters	O
and	O
numerals	O
.	O
</s>
<s>
It	O
is	O
an	O
expansion	O
of	O
the	O
more	O
common	O
seven-segment	B-General_Concept
display	I-General_Concept
,	O
having	O
an	O
additional	O
four	O
diagonal	O
and	O
two	O
vertical	O
segments	O
with	O
the	O
middle	O
horizontal	O
segment	O
broken	O
in	O
half	O
.	O
</s>
<s>
A	O
seven-segment	B-General_Concept
display	I-General_Concept
suffices	O
for	O
numerals	O
and	O
certain	O
letters	O
,	O
but	O
unambiguously	O
rendering	O
the	O
ISO	O
basic	O
Latin	O
alphabet	O
requires	O
more	O
detail	O
.	O
</s>
<s>
A	O
slight	O
variation	O
is	O
the	O
sixteen-segment	B-General_Concept
display	I-General_Concept
which	O
allows	O
additional	O
legibility	O
in	O
displaying	O
letters	O
or	O
other	O
symbols	O
.	O
</s>
<s>
Electronic	O
alphanumeric	B-General_Concept
displays	I-General_Concept
may	O
use	O
LEDs	O
,	O
LCDs	B-Device
,	O
or	O
vacuum	B-General_Concept
fluorescent	I-General_Concept
display	I-General_Concept
devices	O
.	O
</s>
<s>
Often	O
a	O
character	O
generator	O
is	O
used	O
to	O
translate	O
7-bit	B-Protocol
ASCII	I-Protocol
character	O
codes	O
to	O
the	O
14	O
bits	O
that	O
indicate	O
which	O
of	O
the	O
14	O
segments	O
to	O
turn	O
on	O
or	O
off	O
.	O
</s>
<s>
In	O
a	O
14-segment	B-General_Concept
display	I-General_Concept
,	O
there	O
is	O
also	O
an	O
optional	O
15th	O
segment	O
which	O
is	O
a	O
decimal	O
point	O
(	O
denoted	O
as	O
"	O
DP	O
"	O
)	O
.	O
</s>
<s>
A	O
14-segment	B-General_Concept
display	I-General_Concept
is	O
mostly	O
used	O
to	O
display	O
text	O
because	O
the	O
14	O
elements	O
allow	O
all	O
Latin	O
letters	O
to	O
be	O
displayed	O
both	O
in	O
upper	O
case	O
and	O
lower	O
case	O
(	O
with	O
a	O
few	O
exceptions	O
like	O
"	O
s	O
"	O
)	O
.	O
</s>
<s>
Multiple-segment	O
display	O
devices	O
use	O
fewer	O
elements	O
than	O
a	O
full	O
dot-matrix	B-General_Concept
display	I-General_Concept
,	O
and	O
may	O
produce	O
a	O
better	O
character	O
appearance	O
where	O
the	O
segments	O
are	O
shaped	O
appropriately	O
.	O
</s>
<s>
Fourteen-segment	O
gas-plasma	O
displays	O
were	O
used	O
in	O
pinball	O
machines	O
from	O
1986	O
through	O
1991	O
with	O
an	O
additional	O
comma	O
and	O
period	O
part	O
making	O
for	O
a	O
total	O
of	O
16	B-General_Concept
segments	O
.	O
</s>
<s>
Fourteen	O
and	O
sixteen-segment	B-General_Concept
displays	I-General_Concept
were	O
used	O
to	O
produce	O
alphanumeric	O
characters	O
on	O
calculators	B-Application
and	O
other	O
embedded	B-Architecture
systems	I-Architecture
.	O
</s>
<s>
Such	O
displays	O
were	O
very	O
common	O
on	O
pinball	O
machines	O
for	O
displaying	O
the	O
score	O
and	O
other	O
information	O
,	O
before	O
the	O
widespread	O
use	O
of	O
dot-matrix	B-General_Concept
display	I-General_Concept
panels	O
.	O
</s>
<s>
Multiple	O
segment	O
alphanumeric	B-General_Concept
displays	I-General_Concept
are	O
nearly	O
as	O
old	O
as	O
the	O
use	O
of	O
electricity	O
.	O
</s>
<s>
A	O
1908	O
textbook	O
describes	O
an	O
alphanumeric	B-General_Concept
display	I-General_Concept
system	O
using	O
incandescent	O
lamps	O
and	O
a	O
mechanical	O
switching	O
arrangement	O
.	O
</s>
<s>
A	O
few	O
different	O
versions	O
of	O
the	O
fourteen	B-General_Concept
segment	I-General_Concept
display	I-General_Concept
exist	O
as	O
cold-cathode	O
neon	O
lamps	O
.	O
</s>
<s>
They	O
operated	O
similarly	O
to	O
Nixie	B-Application
tubes	I-Application
but	O
instead	O
of	O
the	O
full-formed	O
numeric	O
shapes	O
,	O
used	O
segments	O
to	O
make	O
up	O
numerals	O
and	O
letters	O
.	O
</s>
