HP QDS3-W997, LED Bar graph display

[HarveyH42]

I've got 4 of these, but need a data sheet to hook them up. Search Google, and every Data Sheet site I know. This is all I could find:

QDS3-W997, 2 VOLTS DC 1mm x 2mm RED AND GREEN CLEAR 40 LED BAR GRAPH-20 RED AND 20 GREEN LEDS MOUNTED ON A 20 PIN IC SOCKET (1/10" SPACING), $15.75

It only has 14 pins, row of 10 on one side, 4 on the other (2 on each end). Not sure what I pulled them from, but had them for years. I was looking for some 10 segment ones (eventually found), but got curious about these, especially after seeing the price

 

[Sceadwian]

Sounds like a common LED array, use your multimeter in diode test mode to check it, most meters should cause red and green LED's to glow at least dimly (you'll need low lights)

 

[HarveyH42]

Actually, I hooked it up to a tiny13, have it programmed to scann back and forth (knightrider). Every 4th dot is connected common to one of the 4 pins. I get both a red and a green dot, can't seem to separate them.

Would still like to find a data sheet.