Sapphire Displays to See Major Step Forward With Lower Reflectivity

For several months leading up to the launch of the iPhone 6 and iPhone 6 Plus, it was heavily speculated that the smartphones would be equipped with sapphire crystal displays. Those rumors failed to materialize, however, as Apple opted to continue using ion-strengthened Gorilla Glass for its displays. Just weeks later, Apple sapphire partner GT Advanced filed for bankruptcy in what turned out to be a dramatic fallout between the two companies over strict contract terms and sapphire production issues.

Sapphire Crystal iPhone

(Image via MKBHD)

While GT Advanced experienced difficulties with both the quality and quantity of sapphire, it is possible that Gorilla Glass was the better choice for the iPhone 6 and iPhone 6 Plus after all. TIME reported in September that sapphire, in its current form, has several properties that are less ideal than glass, including being thicker and heavier, more expensive, unable to transmit as much light and less durable after exposure to normal wear and tear. Sapphire also has up to double the screen reflectance of glass, especially under bright light, which could make it difficult to read the screen.

The reflective issue in particular could soon be a thing of the past, however, as DisplayMate confirmed to MacRumors that it has lab tested new sapphire technology that it believes will be a major breakthrough for smartphone displays. The display calibration and evaluation company found the production-ready enhanced sapphire to be at an advantage over both regular sapphire and glass based on the results of its testing, and predicted that "rapidly falling production costs" could make the material go mainstream in the near future.

"We have just lab tested an important new sapphire technology that significantly lowers the screen reflectance of sapphire to much lower than glass, turning its former major disadvantage into a major new advantage," said Dr. Raymond Soneira, DisplayMate President. "A technical note, this isn't an Anti-Reflection AR coating, which would scratch off easily and defeat sapphire's tremendous scratch resistance - so the enhanced sapphire is now number one in scratch resistance, low reflectance and performance in high ambient light. In addition, displays using it could run with lower screen brightness and result in increased running time on battery."

While Apple's recent partnership with GT Advanced made it clear that the iPhone maker is certainly interested in sapphire, it remains unknown if and when the company will ever use the material for the iPhone or other products. A number of smaller smartphone makers such as Huawei, Kyocera and Vertu have already turned to sapphire crystal displays, and these new technologies lay the foundation for Apple and other handset makers to follow suit.

Top Rated Comments

JS77 Avatar
106 months ago
I don't see a benefit to sapphire. It's thicker, heavier, more reflective, *and* more prone to wear and tear, according to the article? So why use sapphire at all?

Looks like you stopped reading the article half way down.... :p
Score: 37 Votes (Like | Disagree)
troop231 Avatar
106 months ago
Fixed...
We'll see this in the iPhone 6s this year.
Double fixed! :)
Score: 18 Votes (Like | Disagree)
Cmd-Z Avatar
106 months ago
I don't see a benefit to sapphire. It's thicker, heavier, more reflective, *and* more prone to wear and tear, according to the article? So why use sapphire at all?
Did you happen to read the 2nd half of the article?
Score: 9 Votes (Like | Disagree)
troop231 Avatar
106 months ago
But what about clear aluminum?

Scotty needs to learn how to use Siri first :p

Score: 8 Votes (Like | Disagree)
69Mustang Avatar
106 months ago
No, that's Corning's opinion while they don't have sapphire displays for sale. Just like Steve Job's method where everything that Apple doesn't have for sale right now was rubbish and nobody wanted it, until Apple had it for sale and then it was the greatest thing.

All these disadvantages will magically disappear when Corning has sapphire displays for sale.

And Apple will use it when somebody can produce enough of these displays for one iPhone model. For example all iPhone 6, or all iPhone 6+. Apple will not want to sell a model with sapphire display and an otherwise identical model without sapphire display at the same time.

Sorry, that's not just Corning saying so. Those are the facts of sapphire. It is heavier than glass. It's also thicker and more expensive to make thinner. The reflectivity was higher prior to this new formula. Additionally, it is less durable over time vs ionized glass due to the chemical structure of the crystal. None of that has anything to do with Corning.

This new sapphire formula only seems to address the reflectivity and none of the other issues. As for Corning, they could very well be the manufacturers of this new sapphire, since DisplayMate doesn't say who makes it. We don't know.
Score: 4 Votes (Like | Disagree)
dredlew Avatar
106 months ago
Main problem of sapphire is still that it’s more brittle than regular glass. Who cares about scratch resistance? If the glass is scratched, you can still use the phone. When it breaks, that’s when the issues start and you need to get the screen replaced. Unless they figure out a way to make it less brittle, I don’t see sapphire as a good successor.
Score: 4 Votes (Like | Disagree)

Popular Stories

iPhone 15 Pro Buttons CAD Leak

iPhone 15 Pro Leak Reveals Unified Volume Button and Mute Button

Monday March 20, 2023 8:33 am PDT by
As previously rumored, the next-generation iPhone 15 Pro and iPhone 15 Pro Max will feature a unified volume button and a mute button, according to leaked CAD images shared in a video on the Chinese version of TikTok and posted to Twitter by ShrimpApplePro. Instead of separate buttons for volume up and volume down, the iPhone 15 Pro models are expected to have a single elongated button for...
iOS 16

iOS 16.4 for iPhone Nearing Launch With These 5 New Features

Monday March 20, 2023 11:50 am PDT by
Apple says iOS 16.4 is coming in the spring, which began this week. In his Sunday newsletter, Bloomberg's Mark Gurman said the update should be released "in the next three weeks or so," meaning a public release is likely in late March or early April. iOS 16.4 remains in beta testing and introduces a handful of new features and changes for the iPhone. Below, we have recapped five new features ...
voice isolation

iOS 16.4 Adds Voice Isolation for Cellular Phone Calls

Tuesday March 21, 2023 11:01 am PDT by
The iOS 16.4 update that is set to be released to the public in the near future includes voice isolation for cellular calls, according to notes that Apple shared today. Apple says that Voice Isolation will prioritize your voice and block out the ambient noise around you, making for clearer phone calls where you can better hear the person you're chatting with and vice versa. Voice...
original iphone auction

Factory-Sealed Original iPhone Sells for $55,000 at Auction

Friday March 17, 2023 1:08 pm PDT by
A first-generation iPhone still sealed inside its box sold for $54,904 at auction, which is more than $54,000 over the original $599 price tag of the device when it was released in 2007. The original iPhone was put up for sale by RR Auction on behalf of a former Apple employee who purchased it back when it first came out. Back in February, an original, sealed iPhone sold for over $63,000,...
airpodsd 3 purple 4

iOS 16.4 Seemingly References New AirPods and AirPods Case

Tuesday March 21, 2023 11:43 am PDT by
The iOS 16.4 release candidate version that was provided to developers today appears to hint at a new set of AirPods that could be coming in the near future. According to @aaronp613, the beta features references to AirPods that have a model number of A3048 and an AirPods case with a model number of A2968. There have been no rumors that new AirPods are on the horizon, and it is early for...
iOS 16

Apple Seeds Release Candidate Versions of iOS 16.4 and iPadOS 16.4 to Developers [Update: Public RC Available]

Tuesday March 21, 2023 10:25 am PDT by
Apple today seeded the release candidate versions of upcoming iOS 16.4 and iPadOS 16.4 updates to developers for testing purposes, with the software coming a week after the launch of the fourth betas. The RCs mark the final version of the software that will be provided to the public in the near future. Registered developers are able to download the iOS 16.4 and iPadOS 16.4 updates...
google bard

Google Opens Up Access to Bard AI Chatbot

Tuesday March 21, 2023 4:23 pm PDT by
Google today began allowing users to sign up to use Bard, its AI-powered chatbot that rivals Microsoft's Bing chatbot. First announced back in February, Bard is an experimental conversational AI service for Google Search. Those interested in Bard can join Google's waitlist to get access, and some users have reported getting invitation emails just hours after signing up. There are a long list ...
smart monitor m8 samsung

Deals: Samsung's iMac-Like Smart Monitor M8 Drops to Lowest Price of Year So Far With $250 Discount

Monday March 20, 2023 8:27 am PDT by
Samsung today kicked off a special "Discover Samsung" event, which will be a week-long savings event focusing on Samsung monitors, smartphones, TVs, appliances, and more. While some deals will stick around the entire week (through March 26), others will refresh every day. Note: MacRumors is an affiliate partner with Samsung. When you click a link and make a purchase, we may receive a small...