<s>
A	O
fiber-optic	B-General_Concept
display	I-General_Concept
is	O
a	O
light-emitting	O
display	O
that	O
uses	O
fiber	B-Architecture
optics	I-Architecture
to	O
display	O
images	O
or	O
text	O
.	O
</s>
<s>
Fiber-optic	B-General_Concept
displays	I-General_Concept
can	O
either	O
be	O
static	O
or	O
dynamic	O
,	O
with	O
the	O
typical	O
lighting	O
source	O
being	O
halogen	O
light	O
bulbs	O
.	O
</s>
<s>
Static	O
fiber	B-General_Concept
optic	I-General_Concept
displays	I-General_Concept
have	O
been	O
commonly	O
used	O
for	O
some	O
types	O
of	O
traffic	O
signals	O
.	O
</s>
<s>
One	O
common	O
use	O
for	O
static	O
fiber	B-General_Concept
optic	I-General_Concept
displays	I-General_Concept
are	O
lane	O
control	O
lights	O
,	O
which	O
display	O
either	O
a	O
green	O
downward-pointing	O
arrow	O
or	O
a	O
red	O
X	O
to	O
indicate	O
the	O
open/closed	O
status	O
of	O
road	O
lanes	O
.	O
</s>
<s>
Dynamic	O
fiber	B-General_Concept
optic	I-General_Concept
displays	I-General_Concept
typically	O
display	O
alphanumeric	O
text	O
,	O
and	O
utilize	O
electromechanical	O
shutters	O
to	O
open	O
or	O
close	O
the	O
ends	O
of	O
the	O
fiber	O
strands	O
to	O
display	O
an	O
alphanumeric	O
pixel	O
.	O
</s>
<s>
Compared	O
to	O
eggcrate	O
displays	O
,	O
dynamic	O
fiber	B-General_Concept
optic	I-General_Concept
displays	I-General_Concept
offered	O
lower	O
energy	O
consumption	O
due	O
to	O
requiring	O
fewer	O
bulbs	O
,	O
and	O
offered	O
improved	O
nighttime	O
legibility	O
.	O
</s>
