<s>
A	O
transflective	B-General_Concept
liquid-crystal	I-General_Concept
display	I-General_Concept
is	O
a	O
liquid-crystal	B-Device
display	I-Device
(	O
LCD	B-Device
)	O
with	O
an	O
optical	O
layer	O
that	O
reflects	O
and	O
transmits	O
light	O
(	O
transflective	B-General_Concept
is	O
a	O
portmanteau	O
of	O
transmissive	O
and	O
reflective	O
)	O
.	O
</s>
<s>
when	O
exposed	O
to	O
daylight	O
)	O
the	O
display	O
acts	O
mainly	O
as	O
a	O
reflective	O
display	O
with	O
the	O
contrast	B-Device
being	O
constant	O
with	O
illuminance	O
.	O
</s>
<s>
However	O
,	O
under	O
dim	O
and	O
dark	O
ambient	O
situations	O
the	O
light	O
from	O
a	O
backlight	O
is	O
transmitted	O
through	O
the	O
transflective	B-General_Concept
layer	O
to	O
provide	O
light	O
for	O
the	O
display	O
.	O
</s>
<s>
The	O
transflective	B-General_Concept
layer	O
is	O
called	O
a	O
transflector	O
.	O
</s>
<s>
An	O
application	O
is	O
digital	O
LCD	B-Device
wristwatches	O
.	O
</s>
<s>
Some	O
21st	O
century	O
smartwatches	B-Application
such	O
as	O
the	O
Pebble	B-Device
Smartwatch	I-Device
and	O
the	O
Amazfit	O
Stratos	O
also	O
use	O
transflective	B-General_Concept
LCDs	I-General_Concept
.	O
</s>
<s>
When	O
an	O
illuminance	O
sensor	O
is	O
added	O
for	O
control	O
of	O
the	O
backlight	O
,	O
such	O
a	O
transflective	B-General_Concept
LCD	I-General_Concept
can	O
be	O
read	O
over	O
a	O
wide	O
range	O
of	O
illuminance	O
levels	O
.	O
</s>
<s>
In	O
portable	O
electronic	O
devices	O
the	O
transflective	B-General_Concept
mode	O
of	O
operation	O
helps	O
to	O
save	O
battery	O
charge	O
,	O
since	O
in	O
bright	O
environments	O
no	O
backlighting	O
is	O
required	O
.	O
</s>
<s>
Display	O
manufacturers	O
label	O
their	O
transflective	B-General_Concept
screens	O
under	O
a	O
variety	O
of	O
trade	O
names	O
:	O
</s>
