Lift chairs feature a powered lifting mechanism that pushes the entire chair up form its base. This allows the user to easily move to a standing position.  There are several varieties of lift chairs:

2-position lift chairs have 2 recline positions: straight, and "TV recline", which is leaned slightly back for reading, relaxing or watching television.  3-position lift chairs have 3 recline positions: straight, TV recline and "full recline".  Infinite position lift chairs have independently operated back and leg movement for an infinite number of recline positions from straight up to "sleep recline", which is all the way flat like a bed.