Just inside that border, the solid black strip gradually fades into dozens—or even hundreds—of tiny black dots. It Starts With the Black BorderBefore you can understand the dots, you have to understand the thick black border surrounding the glass. What Those Black Dots Actually DoThose tiny dots may look like a design flourish, but they perform several important jobs:Protect the windshield adhesive by blocking harmful UV rays that can weaken the bond over time. Reduce optical distortion by creating a gradual transition between the black ceramic border and the clear glass during manufacturing. Sometimes, they even have fun little easter eggs:For something most drivers never think about, those tiny black dots have sparked an outsized amount of curiosity online.