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Schematic view of (a) the structure of the folding window module for proposed foldable AMOLED display and (b) the fully folded state of the folding window module at 180°.
(a) Photographic images on the screen of prototype foldable AMOLED display without visible crease and (b) the change in luminance at the interface between a glass and a silicone rubber.
(a) Uniaxial tensile stress-strain curve of the hyperelastic material (LSR 7060) in the whole strain range; (b) cyclic uniaxial tensile stress-strain curve; and (c) cyclic biaxial tensile stress-strain curve for the strains of 25% and 50%.
(a) FEM model design of a half of the folding window module at the final state after folding at 90° and (b) the results of FEM analysis and range of adhesive tolerance with respect to occurred stress at the folding window module; (c) the change in the relative brightness during of folding-unfolding test with (3 mm) and (0.7 mm) in the green region in (b).
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