Mounting a TV in the corner of a room
Mounting a TV in the corner or in a room, often called a "dead corner," is a perfect choice when the room has limited wall space or when you don’t want the TV to stand out too much. Installing a corner TV wall mount can be a bit more challenging compared to flat walls. 
You should carefully check the size and weight of your TV in advance; will it fit in the corner?
The VESA connection on your TV, is it centered or only at the bottom?
Follow the manual and use the correct tools and accessories to attach the mount to the TV’s VESA plate. Don’t forget to lay the TV face down on a soft surface to protect the screen during installation.
Wall placement
How high should a TV be mounted in the corner? What should the distance be?
You don’t want neck strain while watching your favorite show, so when choosing the best place to mount the TV, keep the height as close to eye level as possible. After finding the perfect height for your viewing level, also check that the distance to the corner isn’t too far or too close. Make sure the TV doesn’t come too close to the viewing area when extended, especially if you’re using a full-motion mount.
Attach the TV mount to the wall
Can a corner TV mount be attached to the wall?
A full-motion corner TV wall mount can be attached to both brick and drywall. The most important step when mounting on drywall is to locate the studs behind the wall before drilling and installing the TV. The studs are often spaced 30 or 60 cm apart. You can find the studs by tapping on the wall. The key is to check for safety that there are no pipes or wires inside the wall where you want to mount the TV.