Default [Q] AllShare Cast

Hi. I wanted to ask whether the screen mirroring option under settings -> display -》 wireless display would mirrior my screen to a Samsung LED TV?...... I am confused because of the allshare cast, that it may might only support the devices which have Allshare cast.

I have a Galaxy Grand (GT-I9082 android 4.2.2)
One thing more that I did not found allshare cast on my mobile..... but in samsung apps there was a update for Allshare cast[ I updated it] and after that I tried to open from the Samsung apps but can't. I think this feature is disabled by Samsung. You'll probably think That there cant be wireless display option if I am having samsung mobile. I am using a s/w
Named "wireless display helper" by ppgirl on play store which directly lead me to the display option that is hidden.

So, can I use miracast technology to mirror my screen. If not, how to enable all share cast which is hidden to mirror the screen?