Samsung Says Galaxy Z Fold 2 Uses the World’s Smallest OLED Curvature

Samsung Says Galaxy Z Fold 2 Uses the World’s Smallest OLED Curvature

As a result, the phone can be folded 200,000 times and not break.

Samsung earlier this month unveiled the Galaxy Z Fold 2, and it’s been received as probably the most well-liked of the recent wave of two-screen smartphone devices.

The smartphone, which has a price tag of nearly $2,000, offers five cameras in addition to its two screens. The Verge called it “an extravagant success,” while Tom’s Guide noticed that the Galaxy Z Fold 2 “already beats iPhone 12 Pro in three big ways.” The consensus was that the Galaxy Z Fold 2 is a huge improvement over the original Samsung Galaxy Fold.

Now, Samsung’s Display arm is touting what it calls a major technological achievement on the new device.

Samsung Display said this week that it has developed the OLED panel with the “world’s smallest curvature,” and that the first application of that panel is on the Galaxy Z Fold 2 5G device. This was made possible, Samsung Display said, by cutting down on what’s known as “Folding stress.”

“When a display panel comprised of multiple layers is folded, the front side faces contraction stress, while the backside encounters extension stress at the same time. Those repelling forces can have an impact on the overall structure of a display panel,” the company said.

The display arm of Samsung also said in a press release Wednesday that the Ultra-Thin Glass on the device “is helping to deliver a higher level of product excellence.”

Samsung also said that it had commissioned the French testing service Bureau Veritas to verify 200,000 foldings of the device’s OLED display and confirm that the device can survive that many foldings. “Samsung Display’s cutting edge technology has now passed a folding test of 200,000 display panel folds, a criteria that serves as a universal yardstick to verify the strength of foldable panels,” the company said.

The previous folding Samsung phone, the original Galaxy Fold, fell “woefully short” of the 200,000-fold milestone. That phone reached 119,380 folds before the first damage was reported, CNET found in a test last October.

Another new two-screen smartphone, LG’s recently announced Wing, “has proven to be reliable even after 200,000 swivels,” the company said upon its recent announcement. That’s the equivalent to 100 swivels a day for five years.

The new Galaxy Z Fold 2 has also received “Eye Care Display” certification from the Swiss certification agency Société Générale de Surveillance (SGS), the company said.

“With a rapid increase in application usage, fueled by much higher levels of content amidst rising 5G commercialization, demand is already growing for our more advanced form factor,” according to Samsung Display. “The world’s first 1.4R foldable OLED, developed by Samsung Display, will provide consumers with greater value as it delivers near-perfect folding and outstanding image quality,” a company official added.

Stephen Silver, a technology writer for The National Interest, is a journalist, essayist and film critic, who is also a contributor to Philly Voice, Philadelphia Weekly, the Jewish Telegraphic Agency, Living Life Fearless, Backstage magazine, Broad Street Review and Splice Today. The co-founder of the Philadelphia Film Critics Circle, Stephen lives in suburban Philadelphia with his wife and two sons. Follow him on Twitter at @StephenSilver.

Image: Reuters