LCD's, yes they work, but how ?

[Stressed_Eric]

Hiya all,

Just when you think you know it all something comes around and gets you scratching your head!

I have a problematic LCD display, it's from an old pac-man game that I wanted to fix up for my kid - only thing is, in the early days before I knew it all :roll: , I decided to seperate the two sections of glass to remove some moisture that had found it's way in somehow. That done, when I put the sections back together I see they are somehow polarised opposite and the display is black! Is there a coating on these plates that can degrade with moisture/exposure (been in a sandwich bag for some years now ....) - and is it possible to re-attach them with conductive adhesive?

Another problem with LCDs - I have a fancy multimeter with a serious display - scope included, and right in the middle (just where I least want it) is a dark patch which looks horribly like polarisation (even when off). Is it possible to fix? I don't even know if I can find a replacement if it is unrepairable!

Thanx,

X

 

[Sebi]

LCD-s have polar filters on both side.When You mounted it with different position, give negative picture.
I'm afraid in the second case the LCD damaged: dark patch without driving - mean the glass case no more hermetic, and this patch always bigger and bigger....