Chosen Solution
Why is my Vizio TV darker on the left side. It is a E65-E3, andless than 3 years old?
If your TV is darker on one side it can be that your backlights are not getting the right amount of power from the power supply or the backlights on that side have failed. You can test the power supply to make sure you’re getting the right voltage and if you are then backlights on the side needs to be replaced.