Bending (forming) Bending process 1 Bending radius 1 Drops 1 Failure (mechanical) 1 Force deformation 1 Force distributions 1 Light emission 1 Mechanical behavior 1 OLED flexible screen 1 Organic light emitting diodes (OLED) 1 Organic light-emitting device flexible screen 1 Stress and strain 1 Thickness of the shape 1 Water drop 1 Water-drop-shaped 1 bending radius 1 thickness of the shape 1 water-drop-shaped 1