The title says itself. 

I have a pair of this display: DT070DTFT-IPS-PTS Displaytech | Mouser Germany

According to the datasheet, in order to make the display work, I have to connect these pins:

• VDD <- 3.3V
• LED+ <- 9.6V (voltage source with capability of 140mA)
• GND

Do I have to connect LED- to GND?

And basically, am I missing any connections?

Thank you very much in advance.

Kind regards,

Thai.