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)

Hello,

I've been using an earlier version of the 64128N GC BC 3LP displays. I could communicate to the display via SPI if I shorted J1 and J3 together. However with the later versions of the display I am receiving now, there is no J1 and J3 pads to short.

Can you confirm if the later versions also have SPI capability and if the jumper is no longer needed or if there is anything else that is needed to enable SPI communications? The exact part number of the new display that I have is - Displaytech 64128N GC BC_3LP 220109... (More)