Do smartphones need screen protector? How to choose a screen protector?

ByGoraud Mazanec 2019-08-15 6135

As an enthusiast of digital products, each time I buy a new smartphone, I will apply a screen protector on it, because I can't tolerate the scratches on the screen. Therefore, applying a screen protector is a must for us. If you want to keep your smartphone in the optimum status, undoubtedly, using a screen protector and a phone case is the best choice.

screen protector 

A screen protector is more vulnerable to scratches than the original screen. However, when the screen is on, it is impossible to see these ultra-fine scratches. If you can't tolerate these scratches, you'd better use a good screen protector.

Although my work has nothing to do with screen protectors, out of curiosity, I have done a lot of research and asked quite a few manufacturers to find out different types of screen protectors and their functions. I will use the most straightforward words to help you identify the screen protector and offer you the best solution to screen protection.

The glass screen protector is the primary choice. It is enough to have a high-resolution transparent screen protector. We don't need blue light screen protectors or matte ones. In essence, using these kinds of screen protectors make no sense, because the oleophobic coating wears off with time, so you need to change the screen protector twice a year, which can ensure great tactile experience. Fortunately, screen protectors don't cost much. Otherwise, we can't change them frequently.

screen protector 

Now, I will talk about two different categories of screen protectors as a whole. There are only two kinds; the first kind is glass screen protectors, including tempered glass, peep-proof, diamond, UV screen protectors and more; the second kind is plastic screen protectors, including HD, matte, hydrogel screen protectors, and so on.

Due to the material hardness, the most popular screen protectors are made of tempered glass. Tempered glass screen protectors are one of the great options to protect our phones. However, the limit is that they can't fit well with most smartphones whose screens are curved, and as such, users are sure to have many problems, for example, edges are separate from the screen; the smartphone doesn't look beautiful, covered with tempered glass screen protector, and the tactile experience is far from good. That's why those who use curved screen phones prefer plastic screen protectors.

Most of us who apply a screen protector hope to protect their smartphones from scratches, drops, and fingerprints leaving on the screen. However, when we demand a good user experience and excellent transmittance after the phone is covered with a screen protector. Nevertheless, we will change the screen protector as many problems arise.

The majority of problems result from the oleophobic coating. Moreover, scratch resistance is classified as a kind of wear resistance. To conclude, we need screen protectors that feel good, with wear resistance, high transmittance, fingerprint-resistant coating.

First, let's start with wear resistance. The wear resistance of screen protectors is associated with hardness and abrasion resistance. Generally speaking, the harder a screen protector is, the better it will be. Please note that when you are choosing screen protectors, you'll find that merchants label them 3H/6H/9H. However, the manufacturers test the hardness with graphite grading scale based on the international standard GB/T 6739-1996. The plastic screen protectors are prone to scratches, whereas, the hydrogel screen protectors are advertised as “healers” to scratches. This function is not so meaningful; theoretically, only it can heal nail scratches automatically. In contrast, the wear resistance of glass screen protectors at the same price range is much better.

The second thing you should consider is transmittance. So far, there are high-end, middle-end, low-end screen protectors. Avoid buying a screen protector with less than 90% transmittance and ending up disappointed. It would be better to choose some featuring about 94% transmittance.

The third is the tactile experience, which depends on the texture of the screen protector, the contact between the screen protector and the smartphone, the sensitivity of the screen. Because most phone screens are made of glass, the texture of a glass screen protector is the same as that of the phone screen as the contact depends on the adhesion and manufacturing technique of the screen protector. Generally, the stronger the adhesion, the better the contact. In fact, due to the softness of plastic protectors, by using them, the contact will be better. As for the sensitivity of the touch screen, the thickness plays an important role. The thinner the screen protector, the more sensitive the touch screen will be.

The last thing that you should consider is the anti-fingerprint property, which is determined by the quality of anti-fingerprint oil. You can verify the quality by measuring the angle of the water droplets after you smear water on a screen protector. The larger the angle, the better the quality of the hydrophobic/oleophobic layer. You'd better buy one on which the angle of water drops is about 110 degrees. That's how you can find a qualified screen protector with anti-fingerprint coating.

To sum up, we can choose the right screen protector by focusing on our own needs. The screen protectors that I use in this experiment are from local stores or Gearbest.

If you find this article helpful to you, could you please give me a thumbs-up? 

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