Unlike the OG fold, the new device doesn’t feature a polyamide plastic layer. Rather, the screen is protected by Ultra-Thin Glass. Samsung today said that the Galaxy Z Fold 2 also has the smallest curvature of any foldable phone.
A display panel is made up of various layers and when you fold it, you put it under stress. And it gets even more complicated. The front side of the panel goes through contraction stress and the backside faces extension stress and these opposing forces are collectively known as folding stress.
Folding stress has an indirect relationship with the curvature rate of a display panel. In simple words, folding stress increases as the degree of curvature becomes smaller. The smaller the curvature radius, the more the screen can be folded. A tight curvature also decreases the folding gap.
To minimize folding stress, Samsung has optimized different display elements such as its material, design, and module assembly.
Thanks to this technological breakthrough, Samsung says the phone can withstand 200,000 folds.
Galaxy Z Fold 2 also has the lowest level of blue light emission
Galaxy Z Fold 2’s panel has also bagged “Eye Care Display” certification for its blue light emission level of 6.5 percent, the lowest in the industry at the moment.
