This is my 7" touchscreen, which i bought from an ebay seller called chinatobby2011 . It was an auction and i won it with a 45 EUR bid (free shipping).
An overview of the whole stuff linked together you can find in this video:
Its a 7" resistive touchscreen and called AT070TN92 V.5. This Touchpanel is linked to a controller board called VS-TY2662-V1 or PCB800099. I have made a screenshot from the ebay auction: goo.gl/hd9Nt The auction title is: "HDMI+VGA+2AV Driver board+7inch 800*480 AT070TN92 V.5 Lcd with touch panel".
The direct link to the auction is: www.ebay.com/itm/170937641798
There are several issues:
The drivers, which are shipped with the board do not support ARM chipsets. (And the raspberry pi is based onARM architecture).
But i have found out, that rasbian delivers a driver:
|egalax driver for raspberry pi|
(Howto will be created soon)