Samsung Display Develops CTG Glass to Cut Foldable Creases as Galaxy Z Fold 9 Looms in 2027
Updated
Updated · Android Authority · Aug 4
Samsung Display Develops CTG Glass to Cut Foldable Creases as Galaxy Z Fold 9 Looms in 2027
3 articles · Updated · Android Authority · Aug 4
Summary
CTG—short for Center Etched Thin Glass—would thin only the fold line while keeping the rest of the ultra-thin glass thicker, a design Samsung Display is developing for future foldables.
That structure aims to reduce stress at the center of the screen, where repeated bending causes visible creases over time, while also preserving rigidity and durability when the device is open.
2027 could bring the first commercial use in the Galaxy Z Fold 9 series if development stays on track, though Samsung has not confirmed adoption and the technology remains under development.
Manufacturing hurdles still include hiding or eliminating any visible or tactile transition between glass thicknesses, with special filler materials reportedly being tested to keep the panel feeling like one sheet.
Samsung is pursuing the display change after record pre-orders for the Z Fold 8 and Z Flip 8, as foldable competition intensifies and Apple is expected to enter the segment with its own anti-crease efforts.