The use of screen protector is to prevent the screen glass from being scratched by various sharp objects, and it can also play a certain degree of anti-shattering effect. There are mainly three kinds of screen protector on the market, including TPU, PET and tempered glass. They seem to be a very common accessory, but do you really know the difference between each material and its operating method, and the effects they can provide?
The full name of TPU is thermoplastic polyurethane, which is a high-quality screen protector with scratch resistance, elasticity, higher intensity and oleophobicity. The TPU film is an elastic material, it also has a certain "self-healing" ability, which can absorb a certain amount of impact energy and retains all or most of its original structure. For example, a small scratch just leaves a small pit on the film, and it will slowly return to normal.
TPU screen protector has better performance than PET screen protector and can provide better impact protection. TPU screen protector is usually added with suitable ultraviolet light absorbers in the production process to enhance its weather resistance and anti-yellowing performance. In addition, the sense of touch of TPU film is also better, though not quite as smooth as glass.
The PET screen protector is a polyester film with scratch resistant matte coating on one side and a silicone adhesive on the other. High-quality PET screen protector has highlight transmittance and adds scratch-resistant layer to the screen, and it can only prevent scratches from nails, coins and keys. The price of PET film is lower, but it is easy to change color and turn yellow after being exposed to sunlight during use, and it is also easy to be contaminated with oil stains, and the touch is not as good as glass.
Tempered glass screen protector
In terms of materials, high-quality tempered glass films are all pressed from multiple material layers, the bottom layer is impact-absorbing silicone, then PET film, a clear adhesive in the middle, and finally are tempered glass and oleophobic coating. All the scratch-resistant, drop-resistant and oleophobic materials are pressed into glass screen protector with a thickness within 0.4 mm. In terms of various performance comparisons, glass film is generally a better choice than TPU and PET. It has higher light transmittance, making the screen look clearer. What’s more, it has anti-reflection, anti-glare, and oleophobic capabilities. , then the feel is also the smoothest.