This is straight out of a sci-fi show
I have no idea what it is, the cause, or non-replacement/cheapskate remedial options
I took it apart a while back to investigate, but it's actually in one of the layers(?) in the LCD itself,
and casts its own shadow too within the layers,
so cleaning, pressure jiggle, reflow or other magic LCD fixit isn't going to happen afaict
It began as a pixel-ish style dot a couple of years ago, and getting worse.
So far it's not near any vital display data reading areas, and I could live with that,
but betting it may get worse eventually
It's an -APPA 99 111- model,
and poor 9v battery performance aside,
plus the annoyance of having to wait a half hour for the Ohms/Resistance readings to settle/be accurate/cool off after a Low-Z test measurement on 240 volts AC,
or other large voltage readings (a known/reported bug on these)
this is a decent quality meter with loads of features,
and it's CAL is spot on/or close/same with Flukes
fwiw it's very Fluke 117-ish, but not quite in the 87 class, though the stock APPA leads are miles better
AFAICT this APPA 99 111, Benning MM 7-1 and Ideal 61-486 are the same item,
not sure who actually makes and badges them.
Looks like I may have to source a replacement display = good luck finding one
and or hoping it's an easy swap out, as I forgot what the mounting and connections are on this
Any clues, suggestions or SOL sympathies are welcome