Using a graphical LCD

Mar 02, 2009 3 Replies

I am considering using a graphical display for my next project, so that I can display characters at different sizes. I am looking at something like this:

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but other types are also of interest.



Do such displays contain built-in character sets, or do I have to draw every character myself, pixel-by-pixel?



Or, to rephrase the question, are there any graphical displays that do contain on-board character generators?


RoRo

This one does not. In general I would say it is rare or nonexistent to find character ROMs and rendering logic built into all-points- addressable LCMs like this.

You might take a look at BitFontCreator

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I've used it successfully to do fixed and proportional bitmap fonts.

All the projects (so far) at work use bog-standard Hitachi 44780 compatibles to take advantage of their ubiquity (and price!) but I've been playing with this 1/4 VGA color display from Sparkfun (and other vendors; it's made by ThaiEasyElec). Turns out to be quite easy to drive, as its controller takes care of the messy refresh cycles; just write to display ram and it's there.

Rich Webb Norfolk, VA

sure, have a look at: "4d micro lcd"

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and these may suit you: "4d micro oled"

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and you can add your own characters if you wish to.

Cheers Don...

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