Set the application name from AndroidManifest.xml

[ixpervision]

Hello,
I make a small app for learning how deploy to store android app but I was encountring trouble problem.When I set the app name from manifest file like that

Application Name:Attetion and Memory

and deploy my device, not change my app name. My project name brain.pro. And When I deploy to my device app name is seem brain. How can I set the project name . Thanks for answer