Why is laptop screen called eDP1?

Question

In my new laptop, using i915 and the intel driver of Xorg, the laptop screen is called eDP1 in Randr

$ xrandr
eDP1 connected 1024x768+0+0 (normal left inverted right x axis y axis) 277mm x 156mm
   1366x768      60.14 +  40.09  
   1360x768      59.80    59.96  
   1024x768      60.00* 
   800x600       60.32    56.25  
   640x480       59.94  

Why is it called eDP1? what does the "e" of eDP1 stand for?

Solution

Why is it called eDP1?

Because it is an embedded display port style adapter, and not a video graphics array style one.