<s>
The	O
aspect	O
ratio	O
of	O
a	O
display	B-Device
device	I-Device
is	O
the	O
proportional	O
relationship	O
between	O
the	O
width	O
and	O
the	O
height	O
of	O
the	O
display	O
.	O
</s>
<s>
As	O
of	O
2016	O
,	O
most	O
computer	B-Device
monitors	I-Device
use	O
widescreen	O
displays	O
with	O
an	O
aspect	O
ratio	O
of	O
16:9	O
,	O
although	O
some	O
portable	O
PCs	O
use	O
narrower	O
aspect	O
ratios	O
like	O
3:2	O
and	O
16:10	O
while	O
some	O
high-end	O
desktop	O
monitors	O
have	O
adopted	O
ultrawide	O
displays	O
.	O
</s>
<s>
The	O
following	O
table	O
summarises	O
the	O
different	O
aspect	O
ratios	O
that	O
have	O
been	O
used	O
in	O
computer	B-Device
displays	I-Device
:	O
</s>
<s>
Aspect	O
ratio	O
Example	O
resolutions	O
Notes	O
4:3	O
(	O
1.33:1	O
)	O
1024×768	B-General_Concept
,	O
1600×1200	O
The	O
standard	O
aspect	O
ratio	O
for	O
computer	O
software	O
,	O
videogames	O
,	O
and	O
analog	O
video	O
until	O
the	O
2000s	O
,	O
as	O
well	O
as	O
for	O
early	O
35	O
mm	O
film	O
.	O
</s>
<s>
Used	O
on	O
some	O
modern	O
devices	O
such	O
as	O
the	O
iPad	B-Device
.	O
</s>
<s>
in	O
Microsoft	B-Device
Surface	I-Device
devices	O
.	O
</s>
<s>
16:10	O
(	O
1.6:1	O
)	O
1280×800	O
,	O
1920×1200	O
,	O
2560x1600	O
,	O
3840x2400	O
Common	O
on	O
computer	B-Device
displays	I-Device
of	O
the	O
2000s	O
and	O
2010s	O
,	O
continued	O
use	O
on	O
MacBooks	B-Device
,	O
since	O
2021	O
becoming	O
increasingly	O
popular	O
again	O
in	O
notebooks	B-Device
(	O
Dell	O
,	O
Lenovo	O
and	O
others	O
)	O
.	O
</s>
<s>
16:9	O
(	O
1.78:1	O
)	O
1366×768†	O
,	O
1920×1080	O
The	O
default	O
aspect	O
ratio	O
for	O
HDTV	B-Device
and	O
modern	O
computer	O
displays.	O
~	O
17:9	O
(	O
1.89:1	O
)	O
4096×2160The	O
Digital	O
Cinema	O
Initiatives	O
standard	O
for	O
4K	B-Architecture
resolution	I-Architecture
;	O
specification	O
created	O
in	O
2005	O
but	O
not	O
widely	O
sold	O
until	O
2014	O
–	O
15	O
~	O
21:9	O
(	O
2.37:1	O
)	O
2560×1080†	O
,	O
3440×1440†	O
Used	O
in	O
some	O
professional	O
and	O
gaming	O
displays	O
since	O
the	O
mid	O
2010s	O
,	O
roughly	O
matches	O
various	O
anamorphic	O
formats	O
32:9	O
(	O
3.56:1	O
)	O
3840×1080	O
,	O
5120×1440	O
Used	O
in	O
some	O
high-end	O
displays	O
since	O
2017	O
.	O
</s>
<s>
Until	O
about	O
2003	O
,	O
most	O
computer	B-Device
monitors	I-Device
used	O
an	O
aspect	O
ratio	O
of	O
4:3	O
,	O
and	O
in	O
some	O
cases	O
5:4	O
.	O
</s>
<s>
For	O
cathode	B-Device
ray	I-Device
tubes	I-Device
(	O
CRTs	O
)	O
4:3	O
was	O
most	O
common	O
even	O
in	O
resolutions	O
where	O
this	O
meant	O
the	O
pixels	O
would	O
not	O
be	O
square	O
(	O
e.g.	O
</s>
<s>
Between	O
2003	O
and	O
2006	O
,	O
monitors	O
with	O
16:10	O
aspect	O
ratio	O
became	O
commonly	O
available	O
,	O
first	O
in	O
laptops	B-Device
and	O
later	O
also	O
in	O
standalone	O
computer	B-Device
monitors	I-Device
.	O
</s>
<s>
16:10	O
became	O
the	O
most	O
common	O
sold	O
aspect	O
ratio	O
for	O
widescreen	O
computer	B-Device
monitors	I-Device
until	O
2008	O
.	O
</s>
<s>
In	O
2008	O
,	O
the	O
computer	O
industry	O
started	O
to	O
move	O
from	O
4:3	O
and	O
16:10	O
to	O
16:9	O
as	O
the	O
standard	O
aspect	O
ratio	O
for	O
monitors	O
and	O
laptops	B-Device
.	O
</s>
<s>
A	O
2008	O
report	O
by	O
DisplaySearch	O
cited	O
a	O
number	O
of	O
reasons	O
for	O
this	O
shift	O
,	O
including	O
the	O
ability	O
for	O
PC	O
and	O
monitor	O
manufacturers	O
to	O
expand	O
their	O
product	O
ranges	O
by	O
offering	O
products	O
with	O
wider	O
screens	O
and	O
higher	O
resolutions	O
,	O
helping	O
consumers	O
to	O
more	O
easily	O
adopt	O
such	O
products	O
and	O
"	O
stimulating	O
the	O
growth	O
of	O
the	O
notebook	B-Device
PC	I-Device
and	O
LCD	O
monitor	O
market	O
"	O
.	O
</s>
<s>
By	O
2010	O
,	O
virtually	O
all	O
computer	B-Device
monitor	I-Device
and	O
laptop	B-Device
manufacturers	O
had	O
also	O
moved	O
to	O
the	O
16:9	O
aspect	O
ratio	O
,	O
and	O
the	O
availability	O
of	O
16:10	O
aspect	O
ratio	O
in	O
mass	O
market	O
had	O
become	O
very	O
limited	O
.	O
</s>
<s>
In	O
2012	O
,	O
1920×1080	O
was	O
the	O
most	O
commonly	O
used	O
resolution	O
among	O
Steam	B-Application
users	O
.	O
</s>
<s>
At	O
the	O
same	O
time	O
,	O
the	O
most	O
common	O
resolution	O
globally	O
was	O
1366×768	O
,	O
overtaking	O
the	O
previous	O
leader	O
1024×768	B-General_Concept
.	O
</s>
<s>
In	O
2021	O
,	O
the	O
2K	B-General_Concept
resolution	I-General_Concept
of	O
1920×1080	O
was	O
used	O
by	O
two	O
thirds	O
of	O
the	O
Steam	B-Application
users	O
for	O
the	O
primary	O
display	O
with	O
1366×768	O
and	O
2560×1440	O
both	O
at	O
about	O
eight	O
percent	O
taking	O
the	O
majority	O
of	O
the	O
remaining	O
resolutions	O
.	O
</s>
<s>
3:2	O
displays	O
first	O
appeared	O
in	O
laptop	B-Device
computers	I-Device
in	O
2001	O
with	O
the	O
PowerBook	B-Operating_System
G4	I-Operating_System
line	O
,	O
but	O
did	O
n't	O
enter	O
the	O
mainstream	O
until	O
the	O
2010s	O
with	O
the	O
Chromebook	B-Device
Pixel	I-Device
and	O
2-in-1	O
PCs	O
like	O
Microsoft	B-Device
's	I-Device
Surface	I-Device
line	I-Device
.	O
</s>
<s>
Since	O
2011	O
,	O
several	O
monitors	O
complying	O
with	O
the	O
Digital	O
Cinema	O
Initiatives	O
4K	B-Architecture
standard	O
have	O
been	O
produced	O
;	O
this	O
standard	O
specifies	O
a	O
resolution	O
of	O
4096×2160	B-Architecture
,	O
giving	O
an	O
aspect	O
ratio	O
of	O
≈	O
1.896:1	O
.	O
</s>
<s>
From	O
2005	O
to	O
2013	O
most	O
video	O
games	O
were	O
mainly	O
made	O
for	O
the	O
16:9	O
aspect	O
ratio	O
and	O
16:9	O
computer	B-Device
displays	I-Device
therefore	O
offer	O
the	O
best	O
compatibility	O
.	O
</s>
<s>
4:3	O
monitors	O
have	O
the	O
best	O
compatibility	O
with	O
older	O
games	O
released	O
prior	O
to	O
2005	O
when	O
that	O
aspect	O
ratio	O
was	O
the	O
mainstream	O
standard	O
for	O
computer	B-Device
displays	I-Device
.	O
</s>
<s>
Microsoft	O
recommends	O
a	O
16:9	O
display	O
for	O
tablet	B-Device
computers	I-Device
running	O
Windows	B-Application
8	I-Application
.	O
</s>
<s>
The	O
size	O
of	O
a	O
computer	B-Device
monitor	I-Device
is	O
given	O
as	O
the	O
diagonal	O
measurement	O
of	O
its	O
display	O
area	O
,	O
usually	O
in	O
inches	O
.	O
</s>
<s>
Reasons	O
for	O
this	O
trend	O
include	O
the	O
ability	O
for	O
manufacturers	O
to	O
use	O
a	O
nominally	O
larger	O
display	O
without	O
increasing	O
the	O
width	O
of	O
the	O
phone	O
,	O
being	O
able	O
to	O
accommodate	O
the	O
on-screen	O
navigation	O
buttons	O
without	O
reducing	O
usable	O
app	O
area	O
,	O
more	O
area	O
available	O
for	O
split-screen	O
apps	O
in	O
portrait	O
orientation	O
,	O
as	O
well	O
as	O
the	O
18:9	O
ratio	O
being	O
well-suited	O
for	O
VR	B-Application
applications	O
and	O
the	O
proposed	O
Univisium	O
film	O
format	O
.	O
</s>
<s>
While	O
16:9	O
is	O
well-suited	O
for	O
modern	O
HDTV	B-Device
broadcasts	I-Device
,	O
older	O
4:3	O
video	O
has	O
to	O
be	O
either	O
padded	O
with	O
bars	O
on	O
the	O
left	O
and	O
right	O
side	O
(	O
pillarboxed	O
)	O
,	O
cropped	O
or	O
stretched	O
,	O
while	O
movies	O
shot	O
with	O
wider	O
aspect	O
ratios	O
are	O
usually	O
letterboxed	O
,	O
with	O
black	O
bars	O
at	O
the	O
top	O
and	O
bottom	O
.	O
</s>
