<s>
A	O
monitor	B-General_Concept
filter	I-General_Concept
is	O
an	O
accessory	O
to	O
the	O
computer	B-Device
display	I-Device
to	O
filter	O
out	O
the	O
light	O
reflected	O
from	O
the	O
smooth	O
glass	O
surface	O
of	O
a	O
CRT	B-Device
or	O
flat	O
panel	O
display	O
.	O
</s>
<s>
A	O
secondary	O
use	O
for	O
monitor	B-General_Concept
filters	I-General_Concept
is	O
privacy	O
as	O
they	O
decrease	O
the	O
viewing	O
angle	O
of	O
a	O
monitor	O
,	O
preventing	O
it	O
from	O
being	O
viewed	O
from	O
the	O
side	O
;	O
in	O
this	O
case	O
,	O
they	O
are	O
also	O
called	O
privacy	O
screens	O
.	O
</s>
<s>
The	O
standard	O
type	O
of	O
anti-glare	B-General_Concept
filter	I-General_Concept
consists	O
of	O
a	O
coating	O
that	O
reduces	O
the	O
reflection	O
from	O
a	O
glass	O
or	O
plastic	O
surface	O
.	O
</s>
<s>
An	O
older	O
variety	O
of	O
anti-glare	B-General_Concept
filter	I-General_Concept
used	O
a	O
mesh	O
filter	O
that	O
had	O
the	O
appearance	O
of	O
a	O
nylon	O
screen	O
.	O
</s>
<s>
Support	O
for	O
privacy	O
screen	O
is	O
available	O
since	O
Linux	B-Operating_System
kernel	I-Operating_System
5.17	O
that	O
expose	O
it	O
through	O
Direct	B-Application
Rendering	I-Application
Manager	I-Application
and	O
is	O
used	O
by	O
GNOME	B-Application
42	O
.	O
</s>
