OLED Display Voltage 14V?

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#1
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Hi!

I just bought a 160x128 pixel OLED display to play around with.
I have read the datsheet found here:
http://www.farnell.com/datasheet... (pg. 37)

I'm not sure I read the supply voltages corretly:

Do I need to put 3.3V on VDD, and 8-18V on VDDH? I'm don't understand why the high voltage, I don't want to fry it, because it cost a good deal of money.

Also there is an application note here:
http://www.farnell.com/datasheet... (pg. 4)

In the schematics it seems like putting JP2 would shourt VDD (with VSS), as VDDIO is connected to VDD (see JP1). I don't understand the purpose of JP1 either, they two pins are actually connected to the right, so what's the pint?

EDIT:
And if I really need 8-18V on VDDH, how can I transform my 5V supply voltage up into the valid area?

Thanks for your help,

axos88

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Yes you need 8-18V (16V typical recommended it seems) and you may use a boost regulator to create bigger voltages from 5V. Switched capacitor devices may work too but they have limited current.

There are boost regulator chips or you can just put the required components (inductor, switch transistor, flyback diode, output capacitor, feedback divider resistors) next to your AVR and drive the boost circuit yourself based on feedback.

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Thanks for the input...

Can you recommand any boost regulator chips that I can use? I'm not such a pro in electronics, so I am looking for a simple enough circuit that can be treated like a blackbox (input 5V, output 16V)

Regards,

axos88