<s>
A	O
curved	B-General_Concept
screen	I-General_Concept
is	O
an	O
electronic	O
display	O
device	O
that	O
,	O
contrasting	O
with	O
the	O
flat-panel	B-General_Concept
display	I-General_Concept
,	O
features	O
a	O
concave	O
viewing	O
surface	O
.	O
</s>
<s>
Curved	B-General_Concept
screen	I-General_Concept
TVs	O
were	O
introduced	O
to	O
the	O
consumer	O
market	O
in	O
2013	O
,	O
primarily	O
due	O
to	O
the	O
efforts	O
of	O
Korean	O
companies	O
Samsung	B-Application
and	O
LG	O
,	O
while	O
curved	B-General_Concept
screen	I-General_Concept
projection	O
displays	O
,	O
such	O
as	O
the	O
Cinerama	O
,	O
have	O
existed	O
since	O
the	O
1950s	O
.	O
</s>
<s>
Most	O
curved	B-General_Concept
screens	I-General_Concept
are	O
made	O
with	O
wide	O
(	O
16:9	O
)	O
,	O
ultra-wide	O
(	O
21:9	O
/	O
64:27	O
)	O
or	O
super	O
ultra-wide	O
(	O
32:9	O
or	O
18:5	O
)	O
aspect	B-General_Concept
ratio	I-General_Concept
.	O
</s>
<s>
Manufacturers	O
suggest	O
that	O
curved	B-General_Concept
screens	I-General_Concept
allow	O
greater	O
range	O
in	O
satisfactory	O
viewing	O
angles	O
and	O
offer	O
minimal	O
trapezoidal	O
distortion	O
in	O
comparison	O
to	O
flat-screens	B-General_Concept
.	O
</s>
<s>
This	O
claim	O
is	O
heavily	O
disputed	O
by	O
another	O
claim	O
that	O
a	O
substantial	O
offset	O
from	O
the	O
center	O
provides	O
greater	O
viewing	O
distortion	O
than	O
that	O
of	O
a	O
flat	B-General_Concept
screen	I-General_Concept
.	O
</s>
<s>
Additionally	O
,	O
curved	B-General_Concept
TVs	I-General_Concept
supposedly	O
offer	O
minimized	O
glare	O
from	O
ambient	O
light	O
.	O
</s>
<s>
To	O
reduce	O
outer	O
edge	O
distortions	O
and	O
provide	O
a	O
panoramic	O
view	O
,	O
large	O
curved	B-General_Concept
screens	I-General_Concept
accomplish	O
this	O
free	O
of	O
bezel	O
lines	O
framing	O
each	O
screen	O
,	O
and	O
the	O
alternative	O
was	O
to	O
use	O
multiple	O
flat-screen	O
monitors	O
around	O
the	O
viewer	O
.	O
</s>
<s>
Curved	B-General_Concept
screens	I-General_Concept
and	O
multi-screens	O
have	O
applications	O
in	O
gaming	O
.	O
</s>
<s>
Backward	O
curved	B-General_Concept
screens	I-General_Concept
have	O
the	O
potential	O
to	O
be	O
used	O
as	O
digital	O
signage	O
that	O
can	O
be	O
installed	O
at	O
various	O
locations	O
to	O
produce	O
marketing	O
exposure	O
.	O
</s>
<s>
When	O
projecting	O
images	O
onto	O
a	O
completely	O
flat	B-General_Concept
screen	I-General_Concept
,	O
the	O
distance	O
light	O
has	O
to	O
travel	O
from	O
its	O
point	O
of	O
origin	O
(	O
i.e.	O
,	O
the	O
projector	O
)	O
increases	O
the	O
farther	O
away	O
the	O
destination	O
point	O
is	O
from	O
the	O
screen	O
's	O
center	O
.	O
</s>
<s>
Curved	B-General_Concept
screens	I-General_Concept
are	O
also	O
widely	O
used	O
in	O
IMAX	O
and	O
standard	O
movie	O
theaters	O
for	O
their	O
ability	O
to	O
produce	O
natural	O
expressions	O
and	O
draw	O
the	O
audience	O
deeper	O
into	O
the	O
scene	O
.	O
</s>
<s>
One	O
of	O
the	O
issues	O
in	O
the	O
use	O
of	O
the	O
curved	B-General_Concept
screen	I-General_Concept
in	O
commercial	O
electronics	O
is	O
how	O
accurately	O
it	O
can	O
work	O
with	O
a	O
touch-sensor	O
.	O
</s>
<s>
The	O
first	O
curved	B-General_Concept
screen	I-General_Concept
was	O
the	O
Cinerama	O
,	O
which	O
debuted	O
in	O
New	O
York	O
in	O
1952	O
.	O
</s>
<s>
Multiple	O
theaters	O
,	O
including	O
the	O
Cinerama	O
Dome	O
in	O
Hollywood	O
began	O
to	O
use	O
horizontally	O
curved	B-General_Concept
screens	I-General_Concept
to	O
counter	O
image	O
distortions	O
associated	O
with	O
super-wide	O
formats	O
such	O
as	O
23:9	O
CinemaScope	O
.	O
</s>
<s>
21:9	O
aspect	B-General_Concept
ratio	I-General_Concept
monitors	O
were	O
developed	O
in	O
order	O
to	O
display	O
the	O
maximum	O
amount	O
of	O
information	O
on	O
a	O
single	O
screen	O
.	O
</s>
<s>
The	O
first	O
curved	O
panels	O
were	O
produced	O
by	O
bending	O
flat	B-General_Concept
panels	I-General_Concept
that	O
had	O
already	O
been	O
manufactured	O
.	O
</s>
<s>
Since	O
the	O
introduction	O
of	O
flexible	O
glass	O
,	O
liquid	B-Device
crystal	I-Device
displays	I-Device
(	O
LCDs	B-Device
)	O
can	O
be	O
applied	O
to	O
curved	O
surfaces	O
without	O
bending	O
existing	O
panels	O
.	O
</s>
<s>
The	O
screen	O
technologies	O
used	O
to	O
create	O
curved	O
LCD	B-Device
screens	I-Device
are	O
Vertical	O
Alignment	O
,	O
which	O
helps	O
to	O
reduce	O
any	O
white	O
glow	O
that	O
may	O
affect	O
an	O
angular	O
view	O
,	O
and	O
IPS	B-Architecture
Panels	I-Architecture
,	O
which	O
are	O
more	O
susceptible	O
to	O
distortion	O
.	O
</s>
