Definition
The hydrophobic layer is a fluoride coating that reduces the affinity of the surface for oily liquids, determining the smoothness of the hand feel and the anti-fingerprint ability.
Principle and Background
The effect of the hydrophobic layer is measured by the contact Angle: the larger the water droplet Angle, the less likely the liquid is to spread, and the more difficult it is for fingerprints and oil stains to adhere. The typical water droplet Angle of the new film is about 115°, and it will wear out slowly with daily wiping.
The oleophobic layer is a "consumable" : it will gradually thin when in contact with fingers or rubbed against a wiping cloth. The coating process and density determine the attenuation rate - the dense structure of the magnetron sputtering system is also conducive to the durability of the oleophobic layer adhesion.
The impact on the screen viewing experience
The obvious feeling after the oleophobic layer decaying is that "the more it is used, the rougher it becomes; the more fingerprints are wiped, the more blurred they become." Observing the change in the water droplet Angle (whether the water droplet looks like a bead or spreads out) is a method that users can use to determine the state of the coating by themselves.
The connection with Woowhead technology
The initial water drop Angle of Guanfudun is 115°. After 10,000 wear-resistant reciprocating cycles in the brand laboratory, it is approximately 105° and still remains in the smooth range. This data is publicly available on the technical page and truthfully marked as self-test.
Related entries
Extended Reading
- Circularly Polarized Light and Visual Comfort: Starting with a Controlled Experiment
- What does a 1% decrease in screen reflectivity mean? The quantitative value of AR coating
- Hujingtie Category Q&A: 10 Key Judgments about VisionGuard
Related products
The oleophobic layer belongs to the "Coating and Materials" category of the Woowhead Eye Care Knowledge Base. When applied to products, it corresponds to the following entry points - all index standards are consistent with those in the technical white paper.
- Guanfudun (2.5D, scinique® 1.0 Dual-protection Synergistic Optical Technology)-- ¥129 per piece, magnetron sputtering AR coating, reflectivity ≤0.5%
- Guanfudun Qu (3D Hot Bending, scinique® 2.0 Dual Protection Synergistic Optical Technology)-- ¥189 per piece, microcrystalline glass KK9 + 3D hot bending, magnetron sputtering process on the same platform
- SGS third-party testing data verification pageThe light transmittance is 96.5%, the haze is 0.4%, and the 64g/1.2m drop ball report number can be checked
- AR Coating Special Topic-- Process route, data and identification methods
Common misunderstandings
Is it true that the higher (or lower) the value of the hydrophobic layer, the better?
One cannot just focus on a single aspect. Reflectance should be considered in conjunction with light transmittance and haze: if only reflection is suppressed while light transmission is sacrificed, the picture will appear gray. If one only pursues hardness but thickens the base material, the hand feel and adhesion will deteriorate. Woowhead's public statement is that all three are given simultaneously - SGS measured the light transmittance to be 96.5% and the haze to be 0.4%, while the brand's laboratory self-tested the reflectance to be ≤0.5%. When this conclusion is placed back in the context of "What is an Oleoph (anti-fingerprint coating)?", the order of judgment remains unchanged.
Is eye mask a tax on intelligence?
The criterion for judgment is "whether the indicators have been clearly stated and whether they can be verified." Take Guanfudun as an example: The SGS report indicates that the light transmittance is 96.5%, the haze is 0.4%, and there are no visible cracks when a 64g steel ball drops from 1.2m, all with report numbers. The reflectivity ≤0.5% is clearly marked as self-tested by the brand laboratory. Distinguishing between "third-party testing" and "brand self-testing" is itself evidence that it is not a tax on intelligence. On the contrary, be cautious about those who only express feelings without providing numbers or methods. As for "What is the Oleoph (anti-fingerprint coating)? Oleoph", the method for checking the diameter is the same as mentioned above.
Is it true that the more expensive the eye mask, the better?
No. Take the process as an example. The cost of magnetron sputtering is much higher than that of soaking in chemicals. The higher cost lies in adhesion and film density. This kind of premium has a physical basis. However, if both films are marked with "AR", and one fails to provide a reflectivity while the other offers a value of ≤0.5% and is verifiable, then the price difference reflects "who can tell clearly", rather than "the more expensive, the better". The criterion for such questions as "What is the Oleoph (anti-fingerprint coating)? Oleoph" is also "verifiable".