I recently got a big box of Hantronix 20x2 LCD from a friend. They appear to be the negative type, where the 'on' pixels appear as clear and the off are opaque. When he gave them to me he told me that there was no backlight, however it appears that there is something connected to the backlight terminals, and I'd like some help identifying it.
My best guess is some manner of EL panel? If it is a backlight, can someone tell me how to go about enabling it?
I've tried 3v3 across the terminals, to no effect. In case the pictures didn't turn out, the alleged backlight is two flat leads leading into a laminated plastic device sandwiched between the LCD body and the circuit board backing. I've also included a picture of the back connections, in case someone can spot a missing resistor, perhaps?