screen mirroring work your TV should support Wireless Display and TV must be connected to wifi network same as your phone. use screen mirroring App to mirror your mobile screen to smart TV.

screen mirroring is an application designed for power users that frequently connect their devices to external displays. It works with your existing screen mirroring solution to give you the best experience possible. With Second Screen, you can change your device's resolution and density to fit your TV or monitor,