woody_unreal:
arent many multimeters ,, just single line LCD,, more like a connection of LEDs - two wires = 1 segment ?
No. LCD's don't work that way.
Look at the number of electrical connections on the LCD glass itself. If it has 31 display segments (7 segment display, some colons, comma etc) it's probably a static display, that is - a pin for every single segment and a common backplane connection. The displays in Multimeters, Graphic or not, have generally very few connections, because the LCD glass is multiplexed.
Both types of LCD displays require a special controller. Powering the LCD display from an DC signal from a micro yields a display that fades out quickly and breaks, due to chemical detoriation.
Some more reading: http://ww1.microchip.com/downloads/en/appnotes/00658a.pdf
// Per.