<s>
A	O
jumbotron	B-Application
,	O
sometimes	O
referred	O
to	O
as	O
jumbovision	B-Application
,	O
is	O
a	O
video	O
display	O
using	O
large-screen	B-General_Concept
television	I-General_Concept
technology	I-General_Concept
(	O
video	B-Device
wall	I-Device
)	O
.	O
</s>
<s>
The	O
original	O
technology	O
was	O
developed	O
in	O
the	O
early	O
1980s	O
by	O
Mitsubishi	O
Electric	O
and	O
Sony	O
,	O
which	O
coined	O
JumboTron	B-Application
as	O
a	O
brand	O
name	O
in	O
1985	O
.	O
</s>
<s>
Mitsubishi	O
Electric	O
sold	O
their	O
version	O
of	O
the	O
technology	O
as	O
Diamond	B-General_Concept
Vision	I-General_Concept
.	O
</s>
<s>
The	O
jumbotron	B-Application
was	O
invented	O
in	O
Japan	O
during	O
the	O
early	O
1980s	O
,	O
but	O
there	O
is	O
a	O
dispute	O
between	O
two	O
rival	O
Japanese	O
companies	O
,	O
Mitsubishi	O
Electric	O
and	O
Sony	O
,	O
over	O
its	O
invention	O
.	O
</s>
<s>
In	O
1980	O
,	O
Mitsubishi	O
introduced	O
the	O
first	O
large-scale	O
video	B-Application
board	I-Application
,	O
the	O
Diamond	B-General_Concept
Vision	I-General_Concept
,	O
which	O
was	O
a	O
large	O
screen	O
using	O
cathode-ray	B-Device
tube	I-Device
technology	O
similar	O
to	O
traditional	O
tube	O
televisions	O
.	O
</s>
<s>
Ironically	O
,	O
it	O
was	O
Sony	O
who	O
introduced	O
Daktronics	O
to	O
the	O
pro	O
and	O
college	O
sports	O
world	O
,	O
as	O
Sony	O
would	O
exclusively	O
sell	O
Daktronics	O
scoreboards	O
and	O
controllers	O
with	O
their	O
video	B-Application
board	I-Application
solutions	O
.	O
</s>
<s>
In	O
1985	O
,	O
the	O
term	O
"	O
JumboTron	B-Application
"	O
was	O
coined	O
by	O
Sony	O
for	O
its	O
large-scale	O
video	B-Application
board	I-Application
.	O
</s>
<s>
The	O
JumboTron	B-Application
was	O
the	O
brand	O
name	O
for	O
the	O
large-scale	O
video	B-Application
boards	I-Application
originally	O
manufactured	O
by	O
Sony	O
,	O
and	O
is	O
recognized	O
as	O
one	O
of	O
the	O
largest	O
non-projection	O
video	O
displays	O
ever	O
manufactured	O
.	O
</s>
<s>
Sony	O
creative	O
director	O
Yasuo	O
Kuroki	O
,	O
who	O
previously	O
helped	O
create	O
the	O
Walkman	O
,	O
is	O
credited	O
with	O
the	O
development	O
of	O
the	O
JumboTron	B-Application
.	O
</s>
<s>
It	O
had	O
a	O
display	B-General_Concept
resolution	I-General_Concept
of	O
450,000	O
pixels	B-Algorithm
,	O
using	O
a	O
new	O
proprietary	O
Sony	O
technology	O
called	O
the	O
Trini-lite	O
.	O
</s>
<s>
It	O
was	O
a	O
microprocessor-based	O
light	O
bulb	O
developed	O
by	O
one	O
of	O
Kuroki	O
's	O
colleagues	O
,	O
chief	O
Betamax	O
engineer	O
Yuji	O
Watanabe	O
.	O
</s>
<s>
Trini-lite	O
technology	O
allowed	O
screen	O
clarity	O
and	O
computer	O
control	O
,	O
laying	O
the	O
foundation	O
for	O
the	O
first	O
Sony	O
Jumbotrons	B-Application
.	O
</s>
<s>
In	O
December	O
1986	O
the	O
San	O
Antonio	O
Spurs	O
unvailed	O
the	O
first	O
center-mounted	O
arena	O
JumboTron	B-Application
scoreboard	O
at	O
the	O
now-defunct	O
HemisFair	O
Arena	O
.	O
</s>
<s>
While	O
the	O
JumboTron	B-Application
and	O
similar	O
large-screen	O
displays	O
are	O
physically	O
large	O
,	O
they	O
ranged	O
from	O
low	O
to	O
medium	O
display	B-General_Concept
resolutions	I-General_Concept
.	O
</s>
<s>
While	O
the	O
original	O
Sony	O
JumboTron	B-Application
in	O
1985	O
had	O
a	O
450,000	O
-pixel	O
resolution	O
,	O
comparable	O
to	O
standard-definition	B-Device
televisions	I-Device
of	O
that	O
era	O
,	O
certain	O
later	O
models	O
had	O
lower	O
resolutions	O
.	O
</s>
<s>
The	O
JumboTron	B-Application
at	O
the	O
now-demolished	O
Tampa	O
Stadium	O
in	O
Tampa	O
,	O
Florida	O
,	O
measured	O
30ft	O
(	O
9	O
m	O
)	O
diagonally	O
,	O
with	O
a	O
resolution	O
of	O
only	O
240x192	O
pixels	B-Algorithm
,	O
below	O
VHS	O
resolution	O
.	O
</s>
<s>
Newer	O
,	O
LED-based	O
large	O
screens	O
have	O
resolutions	O
that	O
are	O
an	O
order	O
of	O
magnitude	O
greater	O
than	O
the	O
early	O
JumboTron	B-Application
resolution	O
at	O
a	O
fraction	O
of	O
the	O
cost	O
.	O
</s>
<s>
For	O
example	O
,	O
the	O
much	O
publicized	O
center-hung	O
video	B-Application
board	I-Application
in	O
the	O
Dallas	O
Cowboys	O
 '	O
AT&T	O
Stadium	O
is	O
72	O
feet	O
tall	O
and	O
160	O
feet	O
wide	O
(	O
22	O
m	O
x	O
49	O
m	O
)	O
,	O
displaying	O
HDTV	O
at	O
1920	O
x	O
1080	O
resolution	O
,	O
45	O
times	O
more	O
pixels	B-Algorithm
.	O
</s>
<s>
The	O
largest	O
JumboTron	B-Application
in	O
use	O
was	O
located	O
at	O
SkyDome	O
(	O
now	O
Rogers	O
Centre	O
)	O
in	O
Toronto	O
,	O
Ontario	O
,	O
and	O
measured	O
10	O
m	O
tall	O
by	O
33.5	O
m	O
wide	O
(	O
33ft×110ft	O
)	O
at	O
a	O
cost	O
of	O
US$17	O
million	O
.	O
</s>
<s>
The	O
Rogers	O
Centre	O
JumboTron	B-Application
was	O
replaced	O
in	O
2005	O
by	O
a	O
Daktronics	O
ProStar	O
as	O
part	O
of	O
a	O
stadium	O
revitalization	O
project	O
.	O
</s>
<s>
Sony	O
JumboTron	B-Application
was	O
the	O
first	O
video	B-Application
board	I-Application
ever	O
in	O
Times	O
Square	O
.	O
</s>
<s>
Originally	O
,	O
JumboTrons	B-Application
solely	O
displayed	O
the	O
scores	O
of	O
the	O
games	O
via	O
numerical	O
displays	O
.	O
</s>
<s>
This	O
then	O
evolved	O
into	O
instant	O
replays	O
being	O
showcased	O
for	O
the	O
benefit	O
of	O
fans	O
within	O
the	O
stadiums	O
or	O
arena	O
,	O
and	O
in	O
modern	O
day	O
,	O
social	O
media	O
is	O
heavily	O
integrated	O
,	O
with	O
fans	O
being	O
urged	O
to	O
post	O
on	O
various	O
social	O
media	O
platforms	O
to	O
then	O
have	O
their	O
content	O
appear	O
on	O
the	O
JumboTron	B-Application
screen	O
.	O
</s>
<s>
Sony	O
JumboTron	B-Application
's	O
were	O
the	O
world	O
's	O
first	O
mobile	O
screens	O
and	O
concert	O
screens	O
.	O
</s>
<s>
Originally	O
,	O
the	O
JumboTron	B-Application
was	O
not	O
an	O
LED	O
display	O
(	O
light-emitting	O
diode	O
display	O
)	O
,	O
since	O
blue	O
LEDs	O
were	O
unavailable	O
at	O
the	O
time	O
,	O
and	O
the	O
only	O
green	O
LEDs	O
available	O
were	O
of	O
the	O
traditional	O
yellow-green	O
variety	O
,	O
which	O
were	O
unsuitable	O
for	O
an	O
RGB	O
display	O
.	O
</s>
<s>
Each	O
display	O
consisted	O
of	O
multiple	O
modules	O
composed	O
of	O
16	O
or	O
more	O
small	O
flood-beam	O
CRTs	O
(	O
cathode	B-Device
ray	I-Device
tubes	I-Device
)	O
,	O
each	O
of	O
which	O
included	O
from	O
2	O
to	O
16	O
pixels	B-Algorithm
composed	O
of	O
red	O
,	O
green	O
,	O
and	O
blue	O
phosphors	O
.	O
</s>
<s>
Eventually	O
,	O
JumboTron	B-Application
systems	O
adopted	O
LED	O
technology	O
as	O
blue	O
and	O
pure	O
green	O
LEDs	O
were	O
developed	O
.	O
</s>
<s>
Although	O
JumboTron	B-Application
is	O
a	O
registered	O
trademark	O
owned	O
by	O
the	O
Sony	O
Corporation	O
,	O
Sony	O
stopped	O
manufacturing	O
the	O
devices	O
under	O
that	O
name	O
in	O
2001	O
and	O
the	O
word	O
jumbotron	B-Application
has	O
since	O
become	O
a	O
genericized	O
trademark	O
.	O
</s>
