White Small Lcd Tv There Is A Very Small White Spot On My LG LCD TV. It Is Always There On Screen Whenever Until It's Switched On?

There is a very small white spot on my LG LCD TV. It is always there on screen whenever until it's switched on? - white small lcd tv

There is a small white dot on my LG LCD TV will be on screen until it lights up. It is very visible in the background is dark or black. Please tell what it is and can be corrected. What should I do?