Why do cars have triangular windows? Can't car triangular windows be covered with film?

In addition to the windshield and rear windshield, the car also has glass on the windows. Nowadays, the window glass basically has a triangular window, which is mainly to reduce the driver's blind spot, so generally it is not allowed to be filmed casually.

Why do cars have triangular windows?

The triangular windows are divided into front triangular windows and rear triangular windows. Some cars have front triangular windows and some don't, but most cars have rear triangular windows.

The design of the front triangular window is actually mainly to supplement the field of vision. The extra A-pillar has little effect on the strength. Models with large windshield inclinations like the 8th generation Civic like to use front triangular windows. If these cars fill this corner with black plastic like other cars, the blind spot will be too large. However, since this design will increase the complexity of the process, this type of design is becoming less and less common on new cars.

There are two types of rear triangular windows, one on the door and the other on the C-pillar. The triangular window design on the door leads to more seams on the door. The impact caused by the opening and closing of the door will cause severe tests on the assembly process. As the rubber parts age, the rear triangular window will become the hardest hit area for noise in the car.

However, such a design can help the opening part of the rear window to be regular and away from the wheel arch, and the lowering range of the rear window can be increased or even fully opened.

The rear triangular window on the C-pillar is more about considering the integrity of the body lines and the field of vision of the rear seat.

Is it not possible to apply film on the triangular windows of a car?

The "Automobile Window Glass Sunshade Film Industry Standard" clearly stipulates that the visible light transmittance of the automobile windshield and windshield, other glass used in the driver's field of vision, after affixing the sunshade film should be greater than or equal to 70%.

In other words, the car film must leave the triangular window. This is mainly for safety reasons, and if the film is not left with the triangular window, it will increase the blind spot of the vehicle's vision and will not be allowed to pass the annual inspection.

The conventional cutting method is to cut at a distance of 20 cm from the front end of the side windshield. You can also choose a front windshield car film with a transmittance of more than 70% to use as a side windshield.

Are car triangular windows expensive?

The triangular window glass of a car is the most expensive compared to the glass of the four doors.

Since triangular glass is not easy to damage, it is produced in smaller quantities. If it is damaged, it is difficult to replace, so triangular window glass is more expensive.

A long time ago, the triangular windows of cars were designed to be open and ventilated because there was no air conditioning. Later, they were designed to be beautiful and have always existed.

Another use is to separate the triangular window and the rear window glass so that the rear window glass can be raised and lowered in a balanced manner and is not prone to tilting.