High-quality optical protective film has a wide range of applications in modern society, whether it is mobile phones, tablets, cameras and other electronic devices, or glasses, Windows and other items, all need optical protective film to protect the quality and service life of the screen or lens. However, the optical protective film on the market is dazzling, so how to identify the real high-quality optical protective film? The following will be discussed in detail from several aspects.

First of all, the material is an important factor in judging the quality of the optical protective film. High-quality optical protective films usually use highly transparent materials, such as glass or polymer materials. Glass materials guarantee high light transmission and wear resistance, while polymer materials have higher flexibility and drop resistance. In general, the material identification of high-quality optical protective film will be clearly visible, if it can not be found or the identification is vague, it needs to be vigilant, it is likely to be defective or counterfeit products.

Secondly, light transmission is another important factor in judging the quality of optical protective film. In general, the transmittance of high-quality optical protective film should be more than 90%, the higher the transmittance, the clearer the display effect of the screen will be, the higher the brightness. In addition, the transmittance is sometimes related to the thinness of the optical protective film, if the optical protective film is too thick, it may reduce the transmittance and affect the screen display effect.

Third, hardness is one of the important criteria for evaluating the quality of optical protective film. The hardness of the optical protective film can determine its scratch resistance and scratch resistance. Common hardness indicators include Mohs hardness and Rockwell hardness. In general, an optical protective film with a Mohs hardness of 5-9H can effectively protect the screen or lens from scratches, fingerprints or other daily dust wear; The optical protective film with Rockwell hardness of 2-5H is not hard enough, easy to damage, and its protective effect will be greatly reduced.

Fourth, anti-fingerprint and anti-glare is another important indicator to judge the quality of optical protective film. High-quality optical protective film usually has a special surface treatment technology, which can effectively reduce the adhesion of fingerprints and oil, keep the screen clean, and reduce the reflection of outdoor light, providing users with a better visual experience.

Fifth, ease of installation and use is an important factor in evaluating the quality of optical protective film. Quality optical protective film usually has the size, cutting process and adhesion, easy to install, no bubbles, perfect coverage of the entire screen. When used, the high-quality optical protective film will not affect the sensitivity of the screen touch, nor will it interfere with the screen display.

To sum up, to identify a truly high-quality optical protective film, you need to consider factors such as material, light transmission, hardness, anti-fingerprint and anti-glare, and ease of installation and use. Of course, the price is also a reference factor, if the price is too low, it may generally be counterfeit or inferior products. When purchasing an optical protective film, you can choose a well-known brand or buy it through official channels, and refer to the evaluation of other users to ensure that you buy a real high-quality optical protective film to provide better protection for the equipment.