When i was moving my monitor i accidentally bumped the screen into the edge of the desk and literally my heart stopped so i aborted everything i've started doing and wanted to turn it on as fast as possible to check if its damaged. I was relieved when i turned it on and it showed no signs of damage. Though i later noticed that when a part of the screen which was hit has a black background, a white dot can be seen though it isn't visible on any other background and with a dark grey you need to know what you're searching for, otherwise its not noticeable. I want to know what was broken or will it worsen over time? BTW The monitor is an LG W2240