LCD controller identification

I've just pulled a single-line LCD panel out of an old ITT telehphone, and I need some help identifying it. Google couldn't help. It has this logo on the pcb:

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, the text IBI.R6HB and DM053z and has 14 interface wires. From what I could measure using a multimeter on the phone it seems to run off 5v. I know this is probably a wild shot... but hopefully someone knows what company that logo belongs to. Thanks a lot!

-Alan

Reply to
Sir Manning
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I know this is not much help but you can try checking this page; list of LCD manufacturers

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Reply to
www.interfacebus.com

I have found that most 14-wire lcd's use the same generic Hitachi (HD44780?) controller. You can find the interface and data format anywhere. Here is one page that has some info:

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You may have to experiment with the setup bits. Some single-line lcds are programmed as two line displays, and vice versa, depending on the application, and you will have to find the "right" setting in order to use the entire display. (It depends on how the panel is wired to the chip.)

I have also found, however, that the power, ground, and lcd voltage pins are often moved around on the connector, so if there is any way you can determine which pin is ground and which is vcc (perhaps by inspecting the phone it came out of) you can possibly save yourself the heartbreak of destroying the display.

Reply to
stickyfox

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No help, The logo\'s just UL.

What about the chip(s) on it?

Got a manufacturer and part number?
Reply to
John Fields

The logo is the Underwriters Lab logo and merely indicates that the part is an Underwriters Registered part - doesn't help identify what the part is

Dan

-- Dan Hollands

1120 S Creek Dr Webster NY 14580
Reply to
Dan Hollands

Thanks for all the help! I'll check into everything that was suggested. Unfortunately I can't make the chip on the LCD controller board - it is just a piece of ceramic glued on.

Reply to
Sir Manning

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