Starting from Xperia X10 in 2010, almost all smartphones of Sony (Sony Ericsson) will be pre attached with explosion-proof membranes, and the newly released Xperia Z L36h is no exception.According to the product manager of Sony China, the price of this set of explosion-proof membrane is not cheap, almost equal to the price of a camera.So what is this explosion-proof membrane?
What is the rupture disc?
According to the authoritative definition of car2100, the explosion proof membrane is a metal membrane installed on the upper part of the pressure vessel to prevent explosion of the vessel, which is a safety device.Also called bursting disc or bursting disc.When the pressure in the container exceeds a certain limit, the film will be broken first, which can reduce the pressure in the container and avoid explosion.
What's the use of explosion-proof membrane?
At the LT36h press conference, the impressive double-sided glass design made people pay more attention to the protection. At the beginning, the L36h body with double-sided glass was not rigid enough.If you want your phone to pass Japan's strict 1.5m high anti drop test, you can either improve the rigidity of the glass or change the material.Sony, on the other hand, sticks a layer of explosion-proof film on both sides of the phone, which is hard to find.The following video is a fall test at the CES press conference.Imagine what would happen if there were no explosion-proof membrane and two front and back glass panels?
What is the difference between explosion-proof film and ordinary film?
The explosion-proof membrane is not the frosted membrane and HD membrane that are common in the market.The explosion-proof membrane is neither friction resistant nor scratch resistant.Its main purpose is to improve the screen's ability to withstand external forces and prevent the splash of glass fragments.
The structure of the bursting disc has five layers:
Eva Protective Film
Hardcoat Layer
Transparent polyester film
Bond Line
Release Film
The explosion-proof membrane has a Hardcoat Layer more than the ordinary film, which is also the main contributor to why the explosion-proof membrane can be explosion-proof!
How explosion-proof is the explosion-proof membrane?
actuallyLove to play computer gamesRelevant questions and tests have been carried out for the bursting disc before:
However, the above two tests are actually rotating friction on the plane, and the essential test is the scratch resistance of the explosion-proof membrane.What should be paid more attention to is the bearing capacity and splash resistance of the explosion-proof membrane under the impact of high strength external force.In our daily life, we may drop our mobile phones, such as thisAlthough pasting the explosion-proof film can not guarantee that the screen will not be broken, it can actually improve the rigidity of the screen glass, greatly reduce the probability of screen breaking, and prevent the secondary damage caused by the splash of debris.
In the near future,Love to play computer gamesThe explosion-proof membrane will be violently tested again, please wait!
