Earl''s LCD''s....
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Posts: 46,084
>Thanks Earl,
>
>I've tried many search engines using various combinations of the Part
>Number: I 3984-4211-222-01 as shown on the LCD box label on the eBay item
>page, but to no avail. No pin-out or driver information yet. Do know who
>the manufacturer of the LCD is? That would help greatly. Do any portions
>of the part number look familiar to any of you professionals on the list?
>
>Tim
>
>
>Timothy Medema
>CrystaLite, Inc.
>3307 Cedar St. (425) 745-6000 800-666-6065
>Everett, WA 98201 Fax: (425) 257-0232
>
>www.crystaliteinc.com
><mailto:timm@c...>timm@c...
Hi Tim,
My guess is that the part was produced on a custom contract, and
the part number is for internal tracking. The fact that there were
182 in the lot, as stamped on an overseas shipping container suggests
that it was a prototype that didn't work out. They didn't even hold
back one of them from your purchase. Maybe the project it was to be
a part of was scuttled. These small LCD panels are almost always
custom, and there is very little standard or "off-the-shelf"
available.
Where does that leave you? Does the chip have anything that looks
like an ASIC, a blob of epoxy on the bottom or any chips? It doesn't
look like it from the photo. If not, that may be better. It is a
raw screen. If it is a raw screen you can start by applying an AC
voltage to one pair of pins at a time, and see if any segments (or
icons!) light up. (say, 5 volts square wave from a stamp at about
1khz, through a 0.001uf capacitor).
Good luck! It is a "black box" problem!
-- regards,
Tracy Allen
electronically monitored ecosystems
mailto:tracy@e...
http://www.emesystems.com
>
>I've tried many search engines using various combinations of the Part
>Number: I 3984-4211-222-01 as shown on the LCD box label on the eBay item
>page, but to no avail. No pin-out or driver information yet. Do know who
>the manufacturer of the LCD is? That would help greatly. Do any portions
>of the part number look familiar to any of you professionals on the list?
>
>Tim
>
>
>Timothy Medema
>CrystaLite, Inc.
>3307 Cedar St. (425) 745-6000 800-666-6065
>Everett, WA 98201 Fax: (425) 257-0232
>
>www.crystaliteinc.com
><mailto:timm@c...>timm@c...
Hi Tim,
My guess is that the part was produced on a custom contract, and
the part number is for internal tracking. The fact that there were
182 in the lot, as stamped on an overseas shipping container suggests
that it was a prototype that didn't work out. They didn't even hold
back one of them from your purchase. Maybe the project it was to be
a part of was scuttled. These small LCD panels are almost always
custom, and there is very little standard or "off-the-shelf"
available.
Where does that leave you? Does the chip have anything that looks
like an ASIC, a blob of epoxy on the bottom or any chips? It doesn't
look like it from the photo. If not, that may be better. It is a
raw screen. If it is a raw screen you can start by applying an AC
voltage to one pair of pins at a time, and see if any segments (or
icons!) light up. (say, 5 volts square wave from a stamp at about
1khz, through a 0.001uf capacitor).
Good luck! It is a "black box" problem!
-- regards,
Tracy Allen
electronically monitored ecosystems
mailto:tracy@e...
http://www.emesystems.com