samsung j1 screen problem

after replacing my phone screen(Samsung J1 Ace) October 2017, a month later the screen started showing faded color and later flickering. however i didn't take it back to Samsung service center since it costed me a lot to replace the screen so i didn't want to incur more money since it would be more than the cost of the phone. their was no touch problem with the phone. last week i tried to turn it on from sleep mode but it couldn't show up although when i touched the screen i could here wrong pattern vibration, so i decided to press the screen at the top and it was OK. after doing it severally am now forced to wait for it to come back itself. please help