liquid crystal nightlight thermometer clock mod. this basic project got documented on video.
so this may be of interest to someone that likes adding modifications to cheap chinese gadgets.
to make a nightlight, this liquid crystal display modification has some added surface mount 0.5 watt warm white light emitting diodes run at less then 50% with two 500 ohm resistors. optics plastic diffuser plates lightbox ,
reflective polarizers a reflector to guide otherwise wasted light back toward the LCD panel.
the indoor thermometer is only up by one degree after 24 hrs. so the brightness setting's are about right?
update-
just one example of non-conventional use of surface mount LED's in a confined space.
if you have better examples do post.
my discovery was that the liquid crystal display's reflective silver adhesive back is removable.

will peel off without leaving any residue or damaging the liquid crystal glass. the trick is to find a start point.
then peel off in a spiral. pulling back not up , like peeling an orange. with the reflective adhesive back removed
I then can add my own plastic diffuser plates & lightbox
note that many of my more complex projects are un-documented as lot of backtracking. re-testing. no time for setting up video shot's. 
what you see what you get.