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URGENT! After some time the display fades and then turns off! Backlight stays on but all pixels get off.

We buy your 64128K FC BW-3 model from Digikey.
When we continuously keep the display and backlight on, after some time the display starts to fade and then it goes blank, though the backlight stays on.

Please help us in this matter. We have already installed this display in 200 devices and one after one the displays are shutting off.

When we replace the capacitors connected to implement the 4X boost circuit , or just clean the circuit with isopropyl alcohol then also it starts working.

This is very confusing and it has delayed delivery to our customer. Our last... (More)

how to interface with parallel communication in this display: 64128N FCBW-3LP

I recently purchased your company's display( part no : 64128N FCBW-3LP).  I doubt what kind of interface it is.  And P/S pin is not in your pin out.  How much voltage is suitable for this pins  LED+ & LED-?
if i need to connect parallel mean.what should i do.



Hello Guys, 


This is first time that i am using 64128K-COG-BA-BC display. But having difficulty to turn on the display. As the data sheet there A and k pins need to get connected. But we didn't find A and K pin on display. I have attached data sheet that we are referring and real images of display and My connections. Please help me on this.