Why is half of my screen unsaturated?

The T.V. is a Hisense 58r6e3, I bought it almost 3 months ago and one day I turned it on and the screen showed dark and white lines all over it, I looked on youtube for a possible solution so I found out that it was probably an issue with the T-con, I realized that the problem was the left screen of my tv. In order to solve this issue I put some tape covering about 10 lines of the flex connector. Thanks to that the screen is showing picture again but the left side of the tv is showing unsaturated colors, like washed out, and now I don't know how to fix that.