dust inside the screen LCD

Hi folks! good morning/afternoon/evening all. before, im so sorry for my bad english:(

i have MacBook Air m1, i bought this january last year so my warranty has been expired since last month. here i have a difficult problem, there is a dust or particle (i dont know) trapped inside the lcd. i've been using alcohol to rub this dust, but it didn't work. the dust/particle is only visible if you see from the front, if you see from 30 degrees from either left and right or above and below, you can't see the dust. so i can conclude this is not a dead pixel. is there anyone facing same problem? i dont know what should i do next, i dont mind because this only a little, but as a premium machine with premium price, i think this is a big problem. also i dont want to spend my money to apple service, because its very expensive and i can buy a new external monitor. thankyou all! i need your experience ASAP:)