Plastic boss crack of mold-in screw insert potential cause

Recently field complained our product had plastic house broken issue. As checked the defect parts and found the crack came from the screw boss till outside house. There is a mold-in screw INSERT part inside the boss. Below will list the screw boss crack potential causes:

LCM gasket/cushion design

LCM (LCD Module) is a common component for the electronic products. Almost of the LCM was made by glass and it is brittle and  break easily while hit or drop on the floor due to handle careless. As product design we will install a rubber gasket or cushion locate between the glass and plastic case or metal bezel to prevent it from squeezing due to press or careless hitting.

Although this kind of rubber gasket is a simple design but if the gasket didn’t design well then the installation will be a big challenge in manufacturer. We often see the gasket go outside of the display view area. If this is a touch panel product then it will result the touch function fail. If this kind of issue happens in filed then we will get big trouble.

Therefore, this article attempts to look for the rubber gasket design methods.