Also you can create your own characters:
http://techref.massmind.org/techref/io/lcd/gfxcalc.htm

Tamas


On 4/2/07, Hans Ruopp <hruopp@bluewin.ch> wrote:
>
> Hi Hans,
> > I already have written the code to display text. I also have code to
> > display bitmaps, draw points, draw lines, and few other graphical
> things.
> > However, since this display has a 4-bit depth, I'd like to use it for my
> > font. My current font is a 5X7 by 1-bit deep, like the font you see in
> on
> > the Hitachi style LCD text displays (and I believe this is the font you
> > use too).
> >
> > I think the METAFONT utility pk2bm may be able to do what I want, but I
> > can't figure out how to use it. Supposedly, pk2bm will convert a font
> into
> > a bitmap. I have another utility for converting bitmaps into PIC
> assembly
> > db statements.
> >
> > BTW, I've written a gpsim plugin for this display. Here's a sample
> screen
> > shot illustrating a couple of bitmaps, a rectangular gradient, and the
> 5X7
> > font:
> >
> > http://www.dattalo.com/lcd1.png
> >
> > Scott
> >
> >
>
> I've found a quite interesting application note from Freescale
> (www.freescale.com) about using OLED displays (AN3415.pdf for the files
> AN3415SW.zip). To find the Application Note in Freescale site, click in
> Documentation under "Get Support" (right-side) the application note.
> Sort in descending order by date, it's a quite new AN dated 3/8/2007.
>
> It talks about "OLED Driver Demonstration for 4 bits per pixel Displays"
> but as I've already learned, that in fact it converts windows bitmap
> fonts in a 1 bit deep and the 4-bit part uses the brightness settings
> (Thanks for the explanation Scott).
>
> Anyway it could interest anyone that wants to learn a little bit more
> about these LCDs.
>
> Regards
>
>
>
> Hans
>
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