Check whether there is any oil layer on the screen

2022-08-04
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Check whether your screen has drainage layer in one second.

not long ago, "drainage layer" suddenly became a hot word. At the same time, I believe some people will be confused about this: what the hell is the hydrophobic oil layer? What is this plaything for? Is there a big difference? In fact, hydrophobic oil layer is very common in life, but you don't notice it when you touch it

interpretation of hydrophobic and hydrophobic oil layer, which is a film on the screen

hydrophobic and hydrophobic oil layer, in other words, it is a protective layer that can separate water and grease, as well as the antifouling coating we hear everyday, which is AF (anti finger print) anti fingerprint coating, which is called oleophpbic coating in English. The smooth feel of the new screen usually comes from the hydrophobic and hydrophobic oil layer dentsplyinternational (United States)

af material is a fluorine-containing coating with extremely low surface tension. It is generally called perfluoropolyether. At present, domestic instrument enterprises are basically composed of three teams: R & D, sales and after-sales. Its main function is to adhere to the screen surface and increase the hydrophobic, oil drainage and antifouling properties of the screen. It is widely used on the protective glass of flat panel, display and SLR. We can almost always touch it if we often use electronic products with screens. This hydrophobic and oil repellent effect is the same as that of water drops falling on lotus leaves

af materials are mainly divided into two forms: drug solution and target (similar to small pills), which are respectively suitable for spraying and vacuum evaporation. After the glass is coated and cured at high temperature, the AF coating is retained on the screen surface. In addition to anti fouling, the AF coating also has the characteristics of wear resistance and high light transmittance, and the cost is particularly low. The cost of spraying a single piece is not more than 60 cents, the cost of vacuum evaporation is not more than 2 yuan, and the AF coating with slightly higher concentration can be maintained for 1 or 2 years

of course, the hydrophobic oil layer can be used not only on glass, but also on stainless steel. At present, there are relevant coating solutions on sale, which can be sprayed on the surface of various metal materials such as stainless steel plate to form a nano/micron ultra-thin anti oil and fingerprint self-cleaning coating, which can make the water have ultra-high surface tension (manifested as water repellency), form water drops with high water contact angle, and allow the oil to shrink into small oil drops that are difficult to adhere to the metal surface. A small amount of residual oil can be easily wiped off with a towel or paper towel

demonstration of no water in the hydrophobic oil layer

what is the use of hydrophobic oil layer in daily use

directly speaking, the functions of hydrophobic oil layer in terms of water drainage, oil drainage and antifouling are not intuitive. Let's give a simple example to illustrate: due to the popularity of 2.5D screens, many people will choose ordinary protective films, but there is no hydrophobic oil layer on the cheap protective films. This kind of protective film is obviously astringent and rough on the sliding touch. When we play for a long time, many fingerprint stains will be left on the protective film, which is not easy to clean, and will further increase the sliding resistance

similarly, there is a reason whether there is a hydrophobic oil layer on the screen glass. Without the hydrophobic oil layer, there will be a relatively obvious sense of sliding resistance, and it is easy to leave fingerprints and stains, which are not easy to wipe. The panel glass with hydrophobic and hydrophobic oil layer will reduce the resistance on touch sliding. Although the fingerprint is still left, it is easier to wipe

how to identify whether there is a hydrophobic oil layer on the falling curtain of Pingmo concentrate

a more professional identification method is to test the surface characteristics of the glass lens through the water drop contact angle tester, and indirectly analyze the hydrophobic degree of the glass surface from the water drop angle, so as to judge the antifouling power of the product surface

the water drop angle is defined as the angle between the gas-liquid phase interface and the solid-liquid phase interface at the solid, liquid and gas interfaces. The water drop angle is a scale showing the humidity of the solid surface. Most of the solid droplets are used for measurement. Low contact water drop angle means that the surface with high humidity (hydrophilic) is easy to stick. High water drop contact angle indicates that the surface shows hydrophobicity, heavy organic pollution on the surface or poor surface adhesion

water drop contact angle

of course, our ordinary judgment does not need to be so professional. Drop water onto the screen. If the contact angle is obtuse, the glass surface has a hydrophobic oil layer. If the contact angle is acute and the angle is small, the glass surface is not covered with a hydrophobic oil layer. At the same time, the glass surface with hydrophobic oil layer is not contaminated with water, and the water drops can slide on the screen by gravity

there is a hydrophobic oil layer on the upper part and no hydrophobic oil layer on the lower part

you can also use a small spray to spray towards the screen. If many small water drops are formed on the surface of glass surface after the development of carbon nano meter for many years, the surface of glass is covered with hydrophobic and hydrophobic oil layer; If the glass shows a piece of water, the surface of the glass is not covered with a hydrophobic layer

there is a hydrophobic oil layer on the top and no hydrophobic oil layer on the bottom

although the hydrophobic oil layer can keep the screen smooth and clean to a certain extent, it is not once and for all. The hydrophobic and oil drainage layer will wear with the passage of service time, and the hydrophobic and oil drainage effect will gradually weaken, which is also the reason why the old screen glass is less resistant to dirt. Of course, there is almost no such thing as screen streaking. Most users will apply film to the glass panel after purchase, so it doesn't need to be too concerned about whether there is a hydrophobic layer on the surface of the glass panel. However, it is better to have something than nothing. If it is not kept, readers will suddenly have the impulse to tear off the screen film and experience the silky feel like the author

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