2013 Macbook Air Screen Colors messed up?

I have had this problem for several months now, where randomly and spontaneously while using the computer, the colors on my screen get inverted, and more grayed out. There is also a gray bar near the center of my screen. I can often times get it to go back to normal by turning off the display and turning it on again using the power button in the top right side of the keyboard. Jiggling the screen a little sometimes helps as well. But there are other times when it is persistent, and I have to wait for it to go back. Why is this happening? How do I get it fixed?

http://imgur.com/a/1VT0p