✔ 最佳答案
Whenever there are problems with my 電腦個螢幕, I usually do the followings:
1) Turn on the computer
2) Turn off your monitor
3) Turn on your monitor again
Usually, that helps. If it doesn't, the second option is to adjust all those light contrast button, etc. You may accidentally press something. If it still doesn't work, is your monitor still under warranty? If so, bring it back to the authorized service centre.
Last option, I guess it is time to buy a new monitor. It is not that easy to fix a computer monitor.