Can
small-sized
LCD
screens
be
equipped
with
touch
functions?
Yes.
This
is
a
very
common
requirement.
The
touch
panel
is
typically
laminated
onto
the
surface
of
the
LCD.
Main
types:
Resistive
Touch:
Low
cost,
resistant
to
surface
contaminants
(dust,
water),
works
with
any
object.
Lower
transmittance,
relatively
less
durable
(scratches),
usually
no
multi-touch.
Capacitive
Touch:
High
transmittance,
sensitive
and
smooth
touch,
supports
multi-touch,
durable
(glass
surface).
Higher
cost,
requires
finger
or
special
stylus,
sensitive
to
water/oil
on
surface.
How
long
is
the
lifespan
of
a
small-sized
LCD
screen?
Lifetime
primarily
refers
to
the
Backlight
lifespan
(usually
measured
in
hours
until
brightness
drops
to
50%
of
initial)
and
the
reliability
of
the
LCD
Panel
itself.
Backlight
Lifetime:
Common
LED
backlights
typically
last
30,000
to
70,000
hours
(approx.
3.5
to
8
years
of
continuous
use).
High
temperatures
significantly
reduce
this.
LCD
Panel
Lifetime:
Generally
very
long,
often
50,000
hours
or
more
under
normal
operating
conditions
(avoiding
physical
shock,
extreme
temperatures,
excessive
humidity).
The
screen
itself
typically
does
not
suffer
from
"burn-in".
How
long
does
it
usually
take
for
a
sample?
Samples
usually
take
3
to
5
days
to
be
dispatched.
