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Hi Everybody
I just bought a graphical LCD based on Toshiba T6963c controller.
http://www.futurlec.com/LED/LCD128X64.shtml
For the Vo pin, do I just give a -10 volt supply to it?
According to the web site, I believe it states that Vo should have 0~-10 volt.

Do I just need a chip that can generate -10 voltage, and can be adjusted by a variable resistor.

Do I use the output (mid pin of the variable resistor) of the variable resistor connected to the Vo of the grphical LCD?

There is one FS pin (font select pin). What is the use of this pin, and how can I use this pin?

Thanks

Seems like you pretty much have a handle on things to me.

Yes, you'll need to supply and adjustable negative voltage. A resistive divider is the easiest way to provide the adjustment, and yes, the centre pin is connected to Vo. You well on your way..

A DC-DC converter will give you your negative voltage and you only need the smallest one you can find. If you are connecting the display INside a computer case, there is also the option of utilising the -12V rail of the PSU, however I suggest you use a fixed resistor in series with your POT (20% of the value of the POT, ie; if POT is 10K use a 2K resistor between one end of the pot, and the -12V rail).

Hmm thats given you alot of options....

The font select pin selects the font to use in the internal character rom, what the link you provided doen't explain is what is what with it... So, either tie it hogh, or low, and see what happens. It isn't going to harm the display if it's wrong, but it might display incorrectly if the larger font size is selected.

Anyway, hope that help. Have fun getting it going.

_________________
Syridian,
http://syridian.com

Your reply helps a lot.

Thanks