Apple Patent Application Describes Use of Oleophobic Coatings on Sapphire Displays

Tim Cook confirmed in a recent interview with ABC News' David Muir that Apple was manufacturing sapphire in its Arizona plant, but deflected any questions about how the company planned to use the material. Recent reports suggest the sapphire could land in the iPhone 6 or the iWatch as a display substrate, and a recent patent application lends some credibility to these rumors.

sappphire-oleophobic-patent
As noted by AppleInsider, the United States Patent and Trademark Office published an Apple patent application titled "Oleophobic coating on sapphire" that describes a method of applying an oil-repelling coating to a sapphire display for use in a mobile or portable electronic device.

sappphire-oleophobic-patent-layers
The patent details a multi-layer display material with a base sapphire layer, a transition layer that serves to bond the surface layer to the base layer and finally a surface layer with an oleophobic coating.

Various embodiments described herein encompass a component with a substrate having an alumina base layer, a transition layer comprising alumina and silica, and a surface coating that preferentially bonds to the silica. The base layer may comprise a single-crystal sapphire. The transition layer may transition substantially continuously from about 100% alumina at the base layer to include substantial silica content at the surface coating, or to about 100% silica or silica glass at the surface coating.

A surface layer may be formed on the transition layer, with a substantially silica content, for example substantially 100% silica or silica glass, and the surface coating may be oleophobic. A portable electronic device may comprise the coated component, the portable device may include a window, the oleophobic coating may be provided on an exterior surface of the window, and the window may also include a touch screen.

Apple first used an oleophobic coating when it introduced the fingerprint-resistant material with the iPhone 3GS. The material has been used in subsequent products, including the current iPhone 5s, iPhone 5c, iPod touch, iPad Air and Retina iPad mini.

Apple last year signed a $578 million deal with materials manufacturer GT Advanced to produce sapphire in a new Mesa, Arizona plant currently under construction. Recent photos of the facility reveal significant building progress as the company moves closer to the plant's target full operational date of June 2014.

Popular Stories

carplay next gen hero

RIP, CarPlay 2?

Sunday December 29, 2024 7:32 am PST by
Apple's website continues to state that the first vehicle models with next-generation CarPlay will "arrive in 2024." With less than three days remaining in the year, however, that timeframe is looking more and more unlikely. It would not be entirely Apple's fault if the stated 2024 target is missed, given that it is ultimately up to automakers to roll out the software in vehicles, but it is...
Apple Intelligence General Feature 2

Five Apple Intelligence Features Coming in 2025

Friday December 27, 2024 2:43 pm PST by
Even though iOS 18.1 and iOS 18.2 added multiple Apple Intelligence features like Image Playground, Genmoji, Writing Tools, and more, there are still new Apple Intelligence capabilities that we're waiting on. Apple has at least one more major Apple Intelligence update coming in 2025, and the functionality that we're expecting is outlined below. Priority Notifications Notification summaries...
apple tv plus teaser

Apple Teases Apple TV+ Surprise on January 4 and 5

Thursday December 26, 2024 10:35 am PST by
Apple this week began teasing some kind of upcoming Apple TV+ surprise that's set to happen on January 4 and January 5, telling customers to "stay tuned" and "save the date" in social media posts. Apple's images have a tagline that says "See for yourself," but it isn't clear what Apple has planned. Some users on Reddit have speculated that Apple might be planning to launch a promotion that...
New Things Your iPhone Can Do in iOS 18

22 New Things Your iPhone Can Do in iOS 18.2

Monday December 23, 2024 6:30 am PST by
Apple released iOS 18.2 in the second week of December, bringing the second round of Apple Intelligence features to iPhone 15 Pro and iPhone 16 models. This update brings several major advancements to Apple's AI integration, including completely new image generation tools and a range of Visual Intelligence-based enhancements. Apple has added a handful of new non-AI related feature controls as...
Sudoku Apple News iOS 18

iOS 18.2 Added a New Game to Your iPhone

Saturday December 28, 2024 12:03 pm PST by
Starting with iOS 18.2, released earlier this month, Apple News+ subscribers in the U.S. have access to daily sudoku puzzles in the Apple News app. There are easy, moderate, and challenging difficulty levels for the daily puzzles. A scoreboard tracks your sudoku stats, including your total number of puzzles solved, fastest completion times per difficulty level, and more. Sudoku is the...
AirTag and Lavender iPhone

AirTag 2 Launching Next Year With These New Features

Tuesday December 24, 2024 8:35 am PST by
Apple is expected to release an AirTag 2 next year, and a few new features and changes have already been rumored for the item tracker. Below, we recap what to expect from the AirTag 2: The new AirTag is expected to be equipped with Apple's second-generation Ultra Wideband chip for longer range. The chip debuted last year in the iPhone 15 and the Apple Watch Ultra 2, and Apple said it...
Generic iOS 19 Feature Mock Light

iOS 19 Rumored to Be Compatible With These iPhones

Sunday December 22, 2024 8:09 am PST by
iOS 19 will not drop support for any iPhone models, according to French website iPhoneSoft.fr. The report cites a source within Apple. The report said that iOS 19 will be compatible with any iPhone that is capable of running iOS 18, which would mean the following models: iPhone 16 iPhone 16 Plus iPhone 16 Pro iPhone 16 Pro Max iPhone 15 iPhone 15 Plus iPhone 15 Pro ...
airpods pro 2 gradient

AirPods Pro 3 Expected Next Year: Here's What We Know

Monday December 23, 2024 4:18 am PST by
Despite being released over two years ago, Apple's AirPods Pro 2 continue to dominate the wireless earbud market. However, with the AirPods Pro 3 expected to launch sometime in 2025, anyone thinking of buying Apple's premium earbuds may be wondering if the next generation is worth holding out for. Apart from their audio and noise-canceling performance, which are generally regarded as...

Top Rated Comments

AngerDanger Avatar
141 months ago
Ah, so they make the first incision at 110 and then pour the oleophobia inside… I see…

Score: 12 Votes (Like | Disagree)
ElTorro Avatar
141 months ago
Anyone is familiar with this type of coating? I am all for the scratch resistant Sapphire, but if it is coated with something that can be scratched off, it might defeat the purpose. I'd rather have fingerprints than scratches.
Score: 6 Votes (Like | Disagree)
LukasValine Avatar
141 months ago
Isn't it the oleophobic coating that scratches easily? Doesn't this defeat the purpose of the ultra scratch resistant display?

Edit: Oops, someone beat me to it.
Score: 5 Votes (Like | Disagree)
ZidaneZidane Avatar
141 months ago
As already stated, this is Dumb. Every iphone I have ever had got scratches on the coating. What a waste that would be of sapphire
Score: 4 Votes (Like | Disagree)
69Mustang Avatar
141 months ago
As already stated, this is Dumb. Every iphone I have ever had got scratches on the coating. What a waste that would be of sapphire

I don't think you understood what you read. You seem to be combining complaints about scratch resistance with the fingerprint resistance of the oleophobic coating. Two different things.
The oleophobic coating isn't, pedantically speaking, fingerprint resistant. It repellent to the oils in your skin. Apple and other vendors have been using it for years. Heck, if the coating on your phone has diminished, you can buy a coating kit on Amazon. It's nothing new and totally separate from the sapphire aspect.

The scratch resistance is the cool part of the piece. But it's also the most confusing part of the piece. Sapphire is supposed to be the key to higher scratch resistance, but if I read the piece correctly, the sapphire won't be able to affect scratches because it will be layered under a progressively thickening glass layer. Thickening is relative since we are dealing with extremely small thicknesses. 100% sapphire base blended to a top layer of 100% glass. Where does the benefit of sapphire appear when the top layer is basically what we've always had?

Either I read the article incorrectly (it's possible, I'm out of k-cups) or something is wrong with what I read.:confused:
Score: 2 Votes (Like | Disagree)
Rogifan Avatar
141 months ago
Because Oleophobic coatings on glass is a completely different idea?

I have used phones before with oleophobic claims and the bottom line is they do not prevent fingerprints on screens. The reality is that fingerprints are only an issue when the screen is off because it makes the glass look dirty, but when the screen is on, and unless you have been inhaling Cheetos for a few hours while using your tablet or phone, you are never going to notice fingerprints.

If Apple is patenting how to apply this coating on sapphire then they have a claim, but to claim the "novel" idea of simply using this coating on another type of display surface I do not think will be granted.

Oleophobic is just a marketing gimmick that tries to make people believe that a device with it is better then a device without it, just like sapphire. Apple is the king of patenting marketing myths.

I thought patent applications were about implementation not necessarily invention.
Score: 2 Votes (Like | Disagree)