What is the black area on the front windshield of a car?

[RhettLynn]

The black area on the front windshield of a car consists of black particles that help distribute heat more evenly, thereby preventing the windshield from cracking. The edges of a car's windshield feature black areas and small black dots, which are particularly important. Without these, the windshield might crack after prolonged exposure to intense sunlight in summer. Here are some details about the black areas on the front windshield: 1. According to Pilkington, a UK-based automotive glass manufacturer: The small black dots and black borders are actually created using a ceramic sintering technique, forming a glass structure similar to ceramic. 2. These small black dots are designed to minimize obstruction of the driver's view while reducing the angle of direct sunlight into the eyes. This helps protect the eyes by reducing the impact of strong light on the lens and retina, thereby alleviating driving fatigue.