Why did the Tianjin explosion shatter the doors and windows, but it shattered the photographer's mobile phone screen?

First, the windows and doors have a large area and are easily damaged by the explosion shock wave. The screen area of mobile phone is small. The larger the glass area, the lower the overall strength. This is the reason why the porthole of the plane and the window of the space shuttle can't be made very big. The smaller the area, the higher the impact resistance.

Second, doors and windows have no buffer conditions to slow down the impact and are easily damaged by explosion impact. Mobile phone screen will be wet by clothes and hands, so it is not easy to be damaged by explosion impact.

Third, the direction of the glass window, mostly in the direction of explosion, is becoming more and more serious. The screen of the mobile phone is facing the explosion direction, almost zero. Even if there is, it will only happen when people flee, but there will be human isolation in the middle to slow down the impact of the explosion.

The above three main reasons lead to serious explosion damage of doors and windows, and the screen of mobile phone is not easy to be damaged.