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I have this screen, from an old Psion organiser:


It has a HD61105A chip and 3x HD61104A chips. A length of flexi cable is connected to the back with 16 connections.

I'd like to hook this up to a computer, but I have no clue of how to do it. I have worked with character based screens before and currently have a 4x40 screen on the parallel port. Any help you guys can offer would be great. Thanks

Those seem like the driver chips. You would need a controller to drive it with PC. In the original equipment the controller might have been integrated in the main cpu.
Also to know how to connect it with controller you would need to find out the pinout.

I suspected as much, I've looked at the main board and there's nothing resembling a controler chip there, so I'd say that yes, it's intergtared into the CPU.

I think that building a controler circuit for this may be beyond me though, but thanks for your help.

hi

iv got this disp with 16 HD61104 and 3 HD61105
and i need som pinout.

if posible i need a controler (prise and where to buy)

a controler for printerport
help me please

OK i now have the pinout

but i need help to tell me what that meens and what controler i can use


1 D0 61104
2 D1 61104
3 D2 61104
4 D3 61104
5 Non
6 D1 61105
7 Non
8 CL1
9 CL2
10 D0 61104
11 D1 61104
12 D2 61104
13 D3 61104
14 V1 – VCC
15 GND
16 (SC) Green Chip Center leg “C”
17 (SC) Green Chip Left leg “B”
--
19 Non
20 Non

Based on that pinout it could be a 2 x 4bit dual scan interface. And there are no controllers that are currently supported by parallel port softwares that would work with that kind display.
If you start experimenting yourself and write your own software and find some controller IC and build a controller with it you might get it working.

Hmmm thx but im no elektronic expert



Thomas

Hello

From what PSION is that display?
Where can I find some information about PSION's pinout?

Thanks

jS