So what Display Technology is it IGZO or IPS Dual Led ?

These Guys didn't talk about what screen display technology was it used ? was it the IGZO display or the IPS Dual LED Display. I am curious to find out

The Website Technical Specifications say LED-backlit glossy widescreen Multi-Touch display with IPS technology, same as the iPad-2. It does not mention anything about using Dual LED Display or using IGZO ?