green and purple screen on LCD - pictures link included
today, i saw my lg g2 screen discolored, as there is an interference of the green color and purple. when i take a screenshot of the phone, the picture shows there is nothing wrong. possible something wrong with digitizer, i don't know. it was dropped early on today, from a couch onto the carpet, not a huge drop. i checked it immediately and it was fine. hours later i saw the discoloration, and like i stated, the screenshot shows a normal screen with no discoloration (ruling out GPU problem), touch screen works, nothing is out of ordinary, except the purple and green.
Additional information: when i stop using the phone for a while, the color return to normal. after i used it for couple of minutes 5-10 minutes, the issue return and the screen gets more purple as time of use increases. performed Hard reset, reinstall ROM and kernel, issue persisted
what should i do? how to fix it? what have caused it?