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Recommendation for controller for LM211 LCD ?
http://forum.lcdinfo.com/viewtopic.php?f=6&t=884		 Page 1 of 2
Author:  Chancy99 [ Sun Oct 24, 2004 21:08 ]
Post subject:  Recommendation for controller for LM211 LCD ?
Hi All -

I have an old LM211 lcd panel here, 64x480. It's just the bare panel, no controller or anything at all on it. I got from (I think) All Electronics a couple of years ago, or perhaps one of the other vendors like MECI, Alltronics, etc.

After some digging on the net, I've seen this one used with an HD61830 controller chip. See http://almorton.free.fr/lcd/. 73.com also has a vendor with a batch of them, with that controller already on board, or at least that's how I read it. http://www.73.com/a/0069.shtml.

Trouble is, I can't find a supplier for this controller. Nor the LC7981 which seems to be somewhat compatible.

Can anyone suggest another controller to use with this panel, one that is readily available and fairly easy to interface ? It will eventually be built up with an AVR microcontroller. Heck, I'll bet that there's even a project out there as a generic graphics lcd controller board ...

Thanks -

Dean.
Author:  Chancy99 [ Sat Oct 30, 2004 1:45 ]
Post subject: 
Hrm, no-one has any ideas ? I just need a suggestion for a readily available controller that can handle this 64x480 display ...

Dean.
Author:  coorz [ Sat Oct 30, 2004 10:18 ]
Post subject: 
A SED1335 controller board would do the trick to. In the USA easily available for about 40~50$ from MPI.
Author:  Henri [ Sat Oct 30, 2004 21:30 ]
Post subject: 
I had a quick look at the lcd datasheet and it shows that the lcd only has 2 data lines. Checking the HD61830/LC7981 datasheet also shows that they use 2 datalines.
SED1335 on the other hand uses 4 datalines to transfer the data to the driver IC's so there seems to be a compatibility problem.

I don't remember seeing other controller IC's beside HD61830/LC7981 that would use 2 datalines.
Author:  Chancy99 [ Fri Nov 26, 2004 22:01 ]
Post subject: 
Hrm. Blasted LM211 datasheet is a little thin ... I wonder if it's possible to retrofit the sed133x to this LM211 display. I think the MPI S1335 board can handle displays that are quite a bit larger than the LM211, hence the availability of the 4 data lines.

I found what looks like a nice standalone controller board ...

http://www.angelfire.com/electronic/micropakindustries/page8.html

Is anyone familiar with it ?

D.
Author:  Chancy99 [ Fri Jun 17, 2005 0:05 ]
Post subject: 
Just waking this old thread up again. I never did get that LM211 lcd going, and now I have a project that it would be perfect for ...

So, can anyone refer me to a nice (hopefully cheap) controller board for the LM211 ?

TIA -

D.
Author:  One~Zero [ Fri Jun 17, 2005 11:47 ]
Post subject: 
I think I've seen someone else post on this display before, but can't remember where. Anyway, I've been working on a LC7981 controller board for a display I have which originaly required the HD61830 as well. I don't know if I have the datasheet for the LM211 or not, but if you could provide a pinout and voltage requirements, I might be able to get one made up for you when I get mine made. Problem is, it's not going to be something that would happen in the next week or 2....probably closer to 4-5 weeks.

**EDIT** Never mind, found the LM211 data sheet. One thing I didn't see mentioned is a backlight :?
Don't know if that's a big concern for you or not, but you may want to try and find one with a backlight if possible.
Author:  Chancy99 [ Fri Jun 17, 2005 15:36 ]
Post subject: 
One~Zero - that would be excellent ! Please do keep me posted on how your board is going, price you would need etc.

My old display has no backlight, but that's OK. I may be able to cobble up an EL panel, but it's not a big deal. Just getting access to the actual display is more important.

Thanks -

D.
Author:  One~Zero [ Fri Jun 17, 2005 17:43 ]
Post subject: 
Chancy99 wrote:
I may be able to cobble up an EL panel, but it's not a big deal. Just getting access to the actual display is more important.

Thanks -

D.


Get a LED backlight if possible. No extra electronics involved (i.e. inverter) and much better brightness in my own opinion.
Author:  coorz [ Fri Jun 17, 2005 18:21 ]
Post subject: 
Indeed EL sucks but it's the easiest way of backlighting. However if your LCD is reflective you'll need to do a lot more work to get any backlight working.
Author:  Chancy99 [ Sat Jun 18, 2005 3:18 ]
Post subject: 
Heh, backlighting is the least of my worries. Just being able to talk to the thing ranks up there a little more :) I'm definitely highly interested to see what One~Zero comes up with ...

D.
Author:  One~Zero [ Sat Jun 18, 2005 8:34 ]
Post subject: 
I may be able to make you the board, but I guarantee you'll be talking to Coorz about making some awesome screens :D
Author:  Chancy99 [ Thu Jun 30, 2005 22:13 ]
Post subject: 
Heh, absolutely.

How goes the board ? Anythings I can help with ? I'm a Protel 99SE user, so can do schematics, layout etc.

D.
Author:  One~Zero [ Thu Jun 30, 2005 22:21 ]
Post subject: 
Thanks for the offer. Right now I'm just trying to get all the parts together and get some files sent out to get some prototype boards made up (I'm currently using Eagle CAD...great little program).
Author:  Chancy99 [ Tue Aug 02, 2005 22:41 ]
Post subject: 
Jus waking things up a little. How did your board design go ? Anything I can help with ?

Thanks -

D.
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