Displayout

MENGS dock connector to HDMI HDTV TV Adapter Cable for iPad iPad2 iPad3 iPhone 4 / 4S iPod iTouch 4 (Personal Computers)

Buy at Amazon.com

MENGS dock connector to HDMI HDTV TV Adapter Cable for iPad iPad2 iPad3 iPhone 4 / 4S iPod iTouch 4 (Personal Computers)

Buy at Amazon.com

If TV out is not working, you should use Displayout under Cydia.
Here the screen size can be selected up to 1080p.
Just google bit :-)

Very Good! But ... 4 Rank: 3/5
December 5

Practicable, but did not last long Rank: 1/5
August 7

Useful and beautiful 1 Rank: 4/5
January 3

Extra 165 Rank: 5/5
October 13

I recommend! 286 Rank: 5/5
March 5

Magnificent 1906 Rank: 5/5
April 3