iPad to TV connection via hdmi

HI, please help?

I Just bought a panasonic-viera-tx-47as650b47 and I want to mirror my iPad to panasonic TV with hdmi connection but every time try I get no respond at all from TV even I chose right hdmi input on the TV and only get a message on iPad saying this accessory is not accepted with the device. I used and still can connect the ipad with other TV with hdmi and it works fine. Can any one suggest if its the Panasonic TV not been compatible or it is something else ? Thanks for any advice in advance.